Bluetooth connection method, earphone and Bluetooth connection device

Abstract

The invention relates to a Bluetooth connection method, an earphone and a Bluetooth connection device. The method comprises the following steps: in a partial or whole process of establishing Bluetooth connection, Bluetooth equipment sends a Bluetooth signal at a preset time interval i and / or a preset emission duration t, so that radiation noise generated by sending the Bluetooth signal meets a first condition. By adopting the method, in the partial or whole process of establishing the Bluetooth connection, the power consumed by the Bluetooth equipment when transmitting the Bluetooth signal is relatively low, so that the current fluctuation generated by the Bluetooth equipment is relatively weak, and the interference of electromagnetic radiation on sensitive devices such as a loudspeaker and a microphone is further reduced.

Description

Technical Field

[0001] The present application relates to the field of communication technologies, and in particular, to a Bluetooth connection method, an earphone, and a Bluetooth connection device. Background Art

[0002] As a short-range wireless connection technology, Bluetooth can achieve convenient, fast, flexible, safe, low-cost, and low-power data communication and voice communication between devices. Therefore, Bluetooth devices are widely used in production and life.

[0003] For example, a Bluetooth earphone can communicate with devices such as a mobile phone, a computer, and a TV through Bluetooth. When the Bluetooth earphone pairs with or reconnects to other devices, the Bluetooth earphone can actively send a Bluetooth signal to a device such as a mobile phone for Bluetooth connection. In some cases, the earphone may generate a relatively large background noise during the Bluetooth connection establishment process, causing discomfort to the user. Summary of the Invention

[0004] Based on this, in view of the above technical problems, it is necessary to provide a Bluetooth connection method, an earphone, and a Bluetooth connection device that can control the noise interference generated during the Bluetooth connection process.

[0005] A Bluetooth connection method, the method comprising:

[0006] During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends a Bluetooth signal at every preset time interval i and / or

[0007] preset transmission duration t, so that the radiation noise generated by sending the Bluetooth signal satisfies a first condition.

[0008] A Bluetooth connection method, the method comprising:

[0009] During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends a Bluetooth signal at every preset time interval i and / or preset transmission duration t;

[0010] wherein, the preset time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise perceptible by the human ear; and / or, the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0011] A method for determining Bluetooth parameters, characterized in that the method comprises:

[0012] Adjust the time interval for transmitting the Bluetooth signal to obtain the current time interval, and / or adjust the transmission duration of the Bluetooth signal to obtain the current transmission duration; during part or all of the process of establishing a Bluetooth connection, when the radiation noise generated by transmitting the Bluetooth signal at the current time interval and / or the current transmission duration meets the first condition, or when the radiation noise generated by transmitting the Bluetooth signal at the current time interval and / or the current transmission duration meets the first condition and the Bluetooth connection performance of the Bluetooth device meets a specific condition, determine the current transmission duration as the preset transmission duration and determine the current time interval as the preset time interval.

[0013] A headset, the headset comprising: a processor, a transceiver, a speaker, and a battery respectively connected to the processor;

[0014] The processor is configured to control the transceiver to transmit a Bluetooth signal at intervals of a preset time interval i and / or a preset transmission duration t during part or all of the process of establishing a Bluetooth connection, so that the radiation noise generated by the transceiver transmitting the Bluetooth signal meets the first condition.

[0015] A headset, the headset comprising: a processor, a transceiver, a speaker, and a battery respectively connected to the processor;

[0016] The processor is configured to control the transceiver to transmit a Bluetooth signal at intervals of a preset time interval i and / or a preset transmission duration t during part or all of the process of establishing a Bluetooth connection;

[0017] Wherein, the preset time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise perceptible by the human ear; and / or, the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0018] A Bluetooth headset, comprising: a processor, a Bluetooth transceiver, a speaker, and a battery respectively connected to the processor;

[0019] The processor is configured to control the transmission time interval of the Bluetooth transceiver to be adjusted to the preset time interval i, and / or control the transmission duration of the Bluetooth transceiver to be adjusted to the preset transmission duration t;

[0020] The Bluetooth transceiver is configured to transmit a Bluetooth signal at intervals of a preset time interval i and / or a preset transmission duration t during the Bluetooth paging process, so that the radiation noise generated by the speaker meets the first condition.

[0021] A Bluetooth headset, characterized by comprising: a processor, a Bluetooth transceiver, a speaker, and a battery respectively connected to the processor;

[0022] The processor is configured to control the adjustment of the transmission time interval of the Bluetooth transceiver to a preset time interval i, and / or control the adjustment of the transmission duration of the Bluetooth transceiver to a preset transmission duration t;

[0023] The Bluetooth transceiver is configured to transmit Bluetooth signals at every preset time interval i and / or preset transmission duration t during the Bluetooth paging process;

[0024] Wherein, the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise perceptible by the human ear; and / or, the preset transmission duration t is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0025] A Bluetooth connection device, the device includes: a processing module and a transmission module;

[0026] The processing module is configured to control the transmission module to send Bluetooth signals at every preset time interval i and / or preset transmission duration t during part or all of the process of establishing a Bluetooth connection, so that the radiation noise generated by sending the Bluetooth signals meets the first condition.

[0027] A Bluetooth connection device, the device includes: a processing module and a transmission module;

[0028] The processing module is configured to control the transmission module to send Bluetooth signals at every preset time interval i and / or preset transmission duration t during part or all of the process of establishing a Bluetooth connection;

[0029] Wherein, the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise perceptible by the human ear; and / or, the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0030] A Bluetooth device includes a memory, a processor, a speaker and a transceiver, the memory stores a computer program, and when the processor and the transceiver are configured to execute the computer program, the following steps are implemented:

[0031] During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at every preset time interval i and / or preset transmission duration t, so that the radiation noise generated by sending the Bluetooth signals meets the first condition.

[0032] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0033] During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at preset time intervals i and / or a preset transmission duration t, such that the radiation noise generated by sending the Bluetooth signals satisfies a first condition.

[0034] In the above Bluetooth connection method, earphone, and Bluetooth connection device, during part or all of the process of establishing a Bluetooth connection, since the Bluetooth device sends Bluetooth signals at preset time intervals i and / or a preset transmission duration t, the radiation noise generated by the sent Bluetooth signals can satisfy the first condition, thereby controlling the interference of Bluetooth noise by controlling the frequency or the transmission time length when the Bluetooth device sends Bluetooth signals, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is an application environment diagram of the Bluetooth connection method in an embodiment;

[0036] Figure 2 It is a schematic flowchart of the Bluetooth connection method in an embodiment;

[0037] Figure 3 It is a schematic flowchart of the Bluetooth connection method in another embodiment;

[0038] Figure 4 It is a schematic flowchart of the Bluetooth connection method in another embodiment;

[0039] Figure 5 It is a schematic flowchart of the Bluetooth connection method in an embodiment;

[0040] Figure 6 It is a schematic flowchart of the Bluetooth connection method in another embodiment;

[0041] Figure 7 It is a schematic diagram of the earphone structure in an embodiment;

[0042] Figure 8 It is a block diagram of the structure of the Bluetooth connection device in an embodiment;

[0043] Figure 9 It is a block diagram of the structure of the Bluetooth connection device in another embodiment;

[0044] Figure 10 It is a block diagram of the structure of the Bluetooth connection device in another embodiment;

[0045] Figure 11 It is a block diagram of the structure of the Bluetooth connection device in an embodiment;

[0046] Figure 12 It is an internal structure diagram of the Bluetooth device in an embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0048] The Bluetooth connection method provided by the present application can be applied to an application environment as Figure 1 shown. Among them, Bluetooth device 102 communicates with Bluetooth device 104 via Bluetooth. For example, Bluetooth device 102 is a first Bluetooth headset, and Bluetooth device 104 is a second headset or a mobile phone. The first Bluetooth headset and the second Bluetooth headset can be the left and right headsets of a TWS (True Wireless Stereo) Bluetooth headset. Both Bluetooth device 102 and Bluetooth device 104 can include an antenna, a speaker, a microphone, a Bluetooth main control circuit, a battery, etc. When Bluetooth device 102 and Bluetooth device 104 are paired or reconnected, a Bluetooth connection is established between Bluetooth device 102 and Bluetooth device 104 via a Bluetooth signal. The Bluetooth signal of the Bluetooth device can be any signal sent by the Bluetooth transceiver during the Bluetooth connection process in the Bluetooth standard, or a signal emitted in certain states, such as a Bluetooth signal emitted in the Bluetooth paging (Page) state, Bluetooth inquiry state, or Bluetooth response state. For example, an ID packet emitted in the Bluetooth paging state. After analysis by the inventor, it is found that during the Bluetooth connection process, especially in the paging state or inquiry state, due to the transmission of information packets such as ID packets on various frequency bands based on the frequency hopping protocol, there will be large current fluctuations, which are likely to cause electromagnetic radiation of the Bluetooth device to interfere with sensitive components such as speakers and microphones. Especially for a Bluetooth headset with a compact structure, the interference caused by the close position of each component is more obvious, thus affecting the user experience.

[0049] Embodiment 1

[0050] Therefore, to solve the above problems, in one embodiment, as Figure 2 shown, a Bluetooth connection method is provided. Taking the Bluetooth device in Figure 1 as an example, the method includes the following steps:

[0051] S201, during part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends a Bluetooth signal at intervals of a preset time interval i and / or a preset transmission duration t, so that the radiation noise generated by sending the Bluetooth signal satisfies a first condition.

[0052] Among them, the process of establishing a Bluetooth connection includes different stages (for example, it can include states such as inquiry, inquiry scan, paging, paging scan, etc.). In scenarios such as the first Bluetooth connection, Bluetooth pairing, and Bluetooth reconnection, the steps included in the Bluetooth connection may be different. This embodiment can be applied to part or all of the process of establishing a Bluetooth connection. For example, this Bluetooth connection method can be applied in the Bluetooth paging process; and / or, in the Bluetooth inquiry process. Further, it can be part or all of the process of re - establishing a Bluetooth connection after an abnormal interruption of the Bluetooth connection. In this case, it may be that the Bluetooth is interfered with (such as blocked by the body, etc.), or it may be interfered with by distance (such as being far away from the sound source device), or it may be other abnormal reasons that cause the Bluetooth connection to be interrupted during use. At this time, the Bluetooth device will re - establish a Bluetooth connection. For example, it enters the paging state and transmits an ID packet based on the frequency - hopping protocol (i.e., in the Bluetooth paging process of re - establishing a Bluetooth connection after an abnormal interruption). Since it will send Bluetooth signals continuously for a certain period of time on some frequency bands and quickly switch frequency bands to transmit, etc., it will cause problems such as current fluctuations, thereby generating background noise (radiation noise). When the radiation noise is too high, the radiation noise emitted through the speaker of the Bluetooth device can be perceived by the user. At this time, if the Bluetooth device sends Bluetooth signals at every preset time interval i and preset transmission duration t, thereby controlling the radiation noise generated by sending Bluetooth signals by controlling the Bluetooth transmission time interval and transmission duration, so that it meets the first condition, and further controlling the impact of the background noise on the user. Or, the Bluetooth device sends Bluetooth signals at every preset time interval i, thereby controlling the radiation noise generated by sending Bluetooth signals by controlling the Bluetooth transmission time interval, so that it meets the first condition, and further controlling the impact of the background noise on the user. Or, the Bluetooth device sends Bluetooth signals with a preset transmission duration t, thereby controlling the radiation noise generated by sending Bluetooth signals by controlling the Bluetooth transmission duration, so that it meets the first condition, and further controlling the impact of the background noise on the user.

[0053] It should be noted that when the Bluetooth device sends Bluetooth signals at preset time intervals i and preset transmission durations t, it can control the background noise from both the frequency and duration aspects of the radiation noise generated, and can better reduce the impact of the background noise on users. When the Bluetooth device sends Bluetooth signals at preset time intervals i or preset transmission durations t, one of the parameters can be the standard parameter of the Bluetooth chip, rather than preset for controlling the radiation noise generated by sending Bluetooth signals to meet the first condition. For example, when the Bluetooth device sends Bluetooth signals at each preset time interval i, the transmission duration t can be the standard parameter of the Bluetooth chip; or when the Bluetooth device sends Bluetooth signals at each preset transmission duration t, the time interval can be the standard parameter of the Bluetooth chip. Of course, in some cases, the Bluetooth device also needs to be in the inquiry state during the connection process, and Bluetooth signals need to be sent in various frequency bands in the inquiry state, so radiation noise may be generated. To reduce the noise, the Bluetooth signals can also be sent in the way of at preset time intervals i and preset transmission durations t, or at preset time intervals i, or at preset transmission durations t. For the convenience of control, the Bluetooth signals can also be sent in the way of at preset time intervals i and preset transmission durations t, or at preset time intervals i, or at preset transmission durations t throughout the process of establishing a Bluetooth connection.

[0054] It can be understood that the above-mentioned preset time interval is different from the Bluetooth transmission time interval after the Bluetooth device establishes a Bluetooth connection, and / or the above-mentioned preset transmission duration is different from the Bluetooth transmission duration after the device establishes a connection.

[0055] That is to say, the Bluetooth transmission time interval can be adjusted to a preset time interval, and the Bluetooth transmission duration can be adjusted to a preset transmission duration. The preset time interval and preset transmission duration may be different from the Bluetooth parameters when sending Bluetooth data in the Bluetooth connected state, so as to reduce the radiation noise at different frequency bands during part or all of the above Bluetooth connection establishment process; for another example, the Bluetooth transmission time interval is adjusted to a preset time interval, and the Bluetooth transmission duration is controlled to be the standard transmission duration of the Bluetooth chip. The preset time interval may be different from the time interval when sending Bluetooth data in the Bluetooth connected state (such as the standard time interval of the Bluetooth chip), so as to control the Bluetooth radiation noise in a specific scenario during part or all of the above Bluetooth connection establishment process; or, the Bluetooth transmission duration is adjusted to a preset transmission duration, and the Bluetooth transmission time interval is adjusted to the standard transmission time interval of the Bluetooth chip. The preset transmission duration may be different from the transmission duration when sending Bluetooth data in the Bluetooth connected state (such as the standard transmission duration of the Bluetooth chip), so as to control the Bluetooth radiation noise in a specific scenario during part or all of the above Bluetooth connection establishment process. Generally speaking, the preset time interval is greater than the Bluetooth transmission time interval after the Bluetooth device establishes a Bluetooth connection, and the preset transmission duration is less than the Bluetooth transmission duration after the Bluetooth device establishes a Bluetooth connection, so as to reduce the Bluetooth radiation noise generated during the connection process (especially during the Bluetooth paging or inquiry process).

[0056] That is to say, during part or all of the Bluetooth connection process, if the Bluetooth connection is carried out according to the Bluetooth parameters after the Bluetooth connection (including the Bluetooth transmission time interval and the Bluetooth transmission duration), such as the standard parameters of the Bluetooth chip, a relatively large background noise (Bluetooth radiation noise) may be generated. Therefore, in order to control the radiation noise generated by transmitting Bluetooth signals during part or all of the Bluetooth connection process, it is necessary to set preset Bluetooth parameters different from the Bluetooth parameters after the Bluetooth connection, such as a preset Bluetooth transmission time interval and a preset Bluetooth transmission duration.

[0057] In this embodiment, during part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at every preset time interval i and / or for a preset transmission duration t, so that the radiation noise generated by sending the Bluetooth signals meets the first condition. Herein, the first condition characterizes the degree to which the radiation noise is perceived by the user. It can be understood that due to the differences in the human ear's perception of sound, there are also individual differences in the perception of radiation noise. To control the impact of the radiation noise generated by the Bluetooth device during the connection process on the user, the first condition can be a situation where the user cannot perceive the radiation noise at all. In this case, there may be no radiation noise, or the generated radiation noise is so weak that the user cannot perceive it. It can also be a situation where the radiation noise that the user can perceive is less than a predetermined value, so that the relatively small radiation noise has a weak impact on the user, thus taking into account both the connection efficiency and the impact of the radiation noise on the user. Specifically, the first condition can be characterized by a lower frequency or a shorter transmission time length when the Bluetooth device emits Bluetooth signals, so that the generated radiation noise has a lower frequency or a shorter duration. Taking a Bluetooth headset as an example of the Bluetooth device, during the process of establishing a connection between the Bluetooth headset and other Bluetooth devices, the first condition can be that the frequency of the radiation noise generated when the Bluetooth headset emits Bluetooth signals is very low and the human ear can hardly perceive the radiation noise. Or, the first condition can be that the frequency of the radiation noise generated when the Bluetooth headset emits Bluetooth signals can be perceived by the user, but the perceived degree is very weak. Due to the differences in the perception abilities of different user individuals, in the same situation, some users may be able to perceive while others may not be able to perceive. Therefore, the first condition can include some parameters of the radiation noise, and the generated radiation noise is measured by the noise parameters. For example, the parameters can include the frequency threshold of the radiation noise, the duration threshold of the radiation noise, etc. Then, during part or all of the process of establishing a Bluetooth connection, when the frequency of the radiation noise generated when emitting Bluetooth signals is controlled within a range less than the frequency threshold, or when the duration of the radiation noise generated when emitting Bluetooth signals is controlled within a range less than the duration threshold, it can be ensured that the radiation noise generated when emitting Bluetooth signals is not perceived by the user, or that the radiation noise generated when emitting Bluetooth signals can be perceived by the user, but the radiation noise perceived by the user is very weak and does not affect the performance of the Bluetooth device.

[0058] Optionally, in this embodiment, while reducing the background noise generated by transmitting Bluetooth signals, the Bluetooth connection performance also needs to be considered to ensure the Bluetooth connection quality. Therefore, when performing a Bluetooth connection according to the above preset Bluetooth parameters, the Bluetooth connection performance of the Bluetooth device needs to meet specific conditions. The Bluetooth connection performance can be measured by means such as the Bluetooth connection speed at a specific distance. Therefore, the Bluetooth connection performance meeting specific conditions can be that within a specific distance, the requirements for Bluetooth connection can be met. For example, within a specific distance, the Bluetooth connection speed requirement can be met, or the Bluetooth connection duration requirement can be met, etc. The preset Bluetooth connection performance can be determined according to product requirements, user experience, etc. For example, when determining the preset transmission duration and / or preset time interval, the preset time interval and preset transmission duration can also be determined according to the Bluetooth connection performance to facilitate Bluetooth connection.

[0059] It should be noted that the above preset time interval may be different from the time interval for transmitting Bluetooth signals pre-set when the Bluetooth chip leaves the factory, and may also be different from the time interval for transmitting Bluetooth signals stipulated by the current Bluetooth protocol. Moreover, the above preset transmission duration may be different from the transmission duration for transmitting Bluetooth signals pre-set when the Bluetooth chip leaves the factory, and may also be different from the transmission duration for transmitting Bluetooth signals stipulated by the current Bluetooth protocol. Or, the above preset time interval may be different from the time interval for transmitting Bluetooth signals pre-set when the Bluetooth chip leaves the factory, and the above preset transmission duration may be the same as the transmission duration for transmitting Bluetooth signals pre-set when the Bluetooth chip leaves the factory. Or, the above preset time interval may be the same as the time interval for transmitting Bluetooth signals pre-set when the Bluetooth chip leaves the factory, and the above preset transmission duration may be different from the transmission duration for transmitting Bluetooth signals pre-set when the Bluetooth chip leaves the factory.

[0060] It should be noted that in different usage scenarios of the Bluetooth device, the above-mentioned first condition may also be different. Taking the Bluetooth headset as an example of the Bluetooth device, when using the Bluetooth headset in a noisy environment, the first condition for controlling the radiation noise can be relatively low, that is to say, the preset transmission time interval can be controlled to be shorter, and the preset transmission duration can be relatively longer. Although the frequency of the generated radiation noise may be higher and the duration of the radiation noise may be longer, due to the noisy environment, it is not easy for the user to perceive; when using the Bluetooth headset in a quiet environment, the first condition for controlling the radiation noise can be relatively high, that is to say, in a quiet environment, it is necessary to control the preset transmission time to be longer and the preset transmission duration to be relatively shorter, so as not to generate radiation noise, or the frequency or duration of the generated radiation noise is not perceived by the user; for another example, when an elderly person uses the Bluetooth headset, the first condition for controlling the radiation noise can be relatively low. The elderly have a weak perception of sound, so it is allowed to reduce the preset transmission time interval and / or increase the preset transmission duration. Even if the frequency of the generated radiation noise is slightly higher or the duration is longer, it does not affect the use; while for young people or adults using the Bluetooth headset, the first condition for controlling the radiation noise can be relatively high to avoid the noise frequency being too high or the time being too long affecting the user experience. This is not limited in the embodiments of the present application.

[0061] In the above scenarios where the radiation noise generated by the Bluetooth signal transmitted by the Bluetooth device satisfies the first condition, the first condition may be that the frequency of the radiation noise is less than the frequency of the reference radiation noise, and / or the duration of the radiation noise is less than the duration of the reference radiation noise. Among them, the frequency of the reference radiation noise is the radiation noise frequency generated by transmitting the Bluetooth signal at the Bluetooth transmission time interval in the Bluetooth connection state during part or all of the process of establishing the Bluetooth connection; the duration of the reference radiation noise is the duration of the radiation noise generated by transmitting the Bluetooth signal at the Bluetooth transmission duration in the Bluetooth connection state during part or all of the process of establishing the Bluetooth connection.

[0062] It can be understood that in this embodiment, taking the Bluetooth headset as an example, if the Bluetooth connection is made with the Bluetooth transmission time interval and the Bluetooth transmission duration in the Bluetooth connection state, or the Bluetooth signal is transmitted in the paging state, when the user wears the Bluetooth headset, the radiation noise (i.e., the reference radiation noise) can be perceived; while under the same other conditions, if the above Bluetooth transmission time interval is adjusted to the preset transmission time interval, and / or the above Bluetooth transmission duration is adjusted to the preset transmission duration for transmission, then the user cannot perceive the radiation noise (background noise) or the frequency of the perceived radiation noise is less than the frequency of the above reference radiation noise, or the duration of the radiation noise is so short that it is not perceived by the user (because there may be background noise generated for other reasons or the background noise generated by Bluetooth transmission has not been completely eliminated, but only the radiation noise has been reduced).

[0063] Embodiment 2

[0064] In one embodiment, the first condition characterizes the degree to which the radiated noise is perceived by the user. In this embodiment, the above-mentioned first condition characterizes the degree to which the radiated noise generated by the Bluetooth device transmitting a Bluetooth signal is perceived by the user. Among them, the degree of being perceived by the user may include not being perceived by the user or being perceived by the user very weakly (weaker than a specific threshold, which can be set as needed and may also be affected by individual perception differences). For example, generally, the frequency range of sound that a normal human ear can hear is from 20 Hz to 20,000 Hz, and the most sensitive frequency range for the human ear to hear sound is from 3,000 Hz to 4,000 Hz. Then, the radiated noise below 20 Hz is not enough to be perceived by the user, and the sound between 20 Hz and 50 Hz can be considered to be perceived by the user very weakly. This is not limited in the embodiments of the present application. Generally, for different individuals, the duration of the noise perceived by the human ear is also different. For example, the duration of the noise perceived by some individuals is 1.25 ms, while the duration of the noise perceived by some individuals is 2.5 ms.

[0065] It can be understood that due to the differences between individuals, the degree to which the radiated noise is perceived by the user will also be different. Exemplarily, users of different ages can be pre-selected in different environments to test the perception degrees of the radiated noise frequencies and durations of users of each age group in various environments. Or, devices simulating the human ear can be used to test the degrees of the radiated noise frequencies and durations perceived by these simulated human ears in different environments, so as to determine the degree to which the radiated noise generated by the Bluetooth device transmitting a Bluetooth signal is perceived by the user in various scenarios. It can be understood that since the perception degree of each user may be different, the user perception degree of the first condition can also be expressed as controlling the radiated noise under the condition that most users cannot perceive it. For example, among 100 randomly selected users, more than 60 users cannot perceive it, and the specific proportion can be adjusted according to the performance requirements of the product.

[0066] In this embodiment, since the first condition characterizes the degree to which the radiated noise generated by the Bluetooth device transmitting a Bluetooth signal is perceived by the user, and the radiated noise generated by the Bluetooth device transmitting a Bluetooth signal meets this first condition, that is, the radiated noise generated by the Bluetooth device when transmitting a Bluetooth signal is within the acceptable range of user perception. That is, in this case, when the Bluetooth device transmits a Bluetooth signal, the time interval is relatively large and / or the transmission duration is relatively short, etc., so that the frequency of the generated radiated noise is very low or the duration is very short, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones, that is, reducing the interference generated by the Bluetooth device when sending a Bluetooth connection request signal to sensitive components such as speakers and microphones.

[0067] Embodiment III

[0068] In the scenario where the radiation noise generated by the Bluetooth signal transmitted by the Bluetooth device satisfies the first condition, in another embodiment, making the radiation noise generated by transmitting the Bluetooth signal satisfy the first condition includes: making the frequency of the radiation noise generated by transmitting the Bluetooth signal satisfy the second condition, where the second condition is used to characterize the degree to which the frequency of the radiation noise is perceived by the user; and / or,

[0069] making the duration of the radiation noise generated each time the Bluetooth signal is transmitted satisfy the third condition, where the third condition is used to characterize the degree to which the duration of the radiation noise generated each time the Bluetooth signal is transmitted is perceived by the user.

[0070] Among them, the degree of being perceived by the user may include being insufficiently perceived by the user or being very weakly perceived by the user. For example, taking the frequency of the radiation noise generated by sending a Bluetooth signal satisfying the second condition as an example, generally, a normal person can hear sounds with frequencies from 20 Hz to 20,000 Hz. 20 Hz is the frequency of the sound that can just be perceived by the human ear. Sounds with frequencies below 20 Hz generally cannot be perceived by the human ear. Then, the radiation noise below 20 Hz is insufficiently perceived by the user, and the sounds between 20 Hz and 50 Hz can be considered to be very weakly perceived by the user. The embodiments of the present application are not limited thereto. Another example is taking the duration of the radiation noise generated each time a Bluetooth signal is sent as an example of the degree of being perceived by the user. Generally, the shortest duration required for the human ear to recognize a sound is 20 - 50 ms. 20 ms is the duration of the sound that can just be perceived by the human ear, and the human ear cannot perceive sounds within 20 ms. Then, the duration of the radiation noise below 20 ms is insufficiently perceived by the user, and the sounds between 20 - 50 ms can be considered to have a very short duration of being perceived by the user. It can be understood that due to individual differences, the degree of the radiation noise being perceived by the user will also be different. Exemplarily, users of different age groups can be pre-selected in different environments to test the degree of perception of the radiation noise by users of each age group in various environments, or devices simulating the human ear can be used to test the degree of the radiation noise perceived by these simulated human ears in different environments, so as to determine the degree of the radiation noise generated when the Bluetooth device emits a Bluetooth signal being perceived by the user in various scenarios. Exemplarily, generally, the human ear cannot perceive sounds below 20 Hz, so the frequency of the radiation noise generated by the Bluetooth device when sending a Bluetooth signal satisfies the degree of being perceived by the user, that is, it is required that the frequency of the radiation noise be less than or equal to 20 Hz; generally, the duration for the human ear to perceive a sound is 20 - 50 ms, so the duration of the radiation noise generated by the Bluetooth device when sending a Bluetooth signal satisfies the degree of being perceived by the user, that is, it is required that the duration of the radiation noise be less than or equal to 20 ms. It can be understood that due to individual differences, different individuals may also perceive different frequencies of sounds, and different individuals may also perceive different durations of sounds. The embodiments of the present application are not limited thereto.

[0071] In this embodiment, since the second condition represents the degree to which the frequency of the radiation noise generated by the Bluetooth device transmitting the Bluetooth signal is perceived by the user, and the third condition represents the degree to which the duration of the radiation noise generated by the Bluetooth device transmitting the Bluetooth signal is perceived by the user. Moreover, the frequency of the radiation noise generated by the Bluetooth device transmitting the Bluetooth signal satisfies the second condition, and the duration of the radiation noise generated by the Bluetooth device transmitting the Bluetooth signal satisfies the third condition. That is to say, the frequency of the radiation noise generated when the Bluetooth device transmits the Bluetooth signal is not perceived by the user or is within the acceptable range of the user's perception, and the duration of the radiation noise generated when the Bluetooth device transmits the Bluetooth signal is not perceived by the user, or the duration of the radiation noise perceived by the user is within the acceptable range. In this case, the time interval when the Bluetooth device transmits the Bluetooth signal is relatively long and the transmission time is relatively short, resulting in a relatively low frequency of the generated radiation noise and a relatively short duration, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones, that is, reducing the interference generated by the Bluetooth device when sending a Bluetooth connection request signal to sensitive components such as speakers and microphones. Additionally, the frequency of the radiation noise generated by the Bluetooth device transmitting the Bluetooth signal satisfies the second condition, that is to say, the frequency of the radiation noise generated when the Bluetooth device transmits the Bluetooth signal is not perceived by the user or is within the acceptable range of the user's perception. In this case, the time interval when the Bluetooth device transmits the Bluetooth signal is relatively long, resulting in a relatively low frequency of the generated radiation noise, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones, that is, reducing the interference generated by the Bluetooth device when sending a Bluetooth connection request signal to sensitive components such as speakers and microphones. Or, the duration of the radiation noise generated by the Bluetooth device transmitting the Bluetooth signal satisfies the third condition, and the duration of the radiation noise generated when the Bluetooth device transmits the Bluetooth signal is not perceived by the user, or the duration of the radiation noise perceived by the user is within the acceptable range. In this case, the duration when the Bluetooth device transmits the Bluetooth signal is relatively short, resulting in a relatively short duration of the generated radiation noise, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones, that is, reducing the interference generated by the Bluetooth device when sending a Bluetooth connection request signal to sensitive components such as speakers and microphones.

[0072] Embodiment 4

[0073] In the above scenario where the radiation noise generated by the Bluetooth signal transmitted by the Bluetooth device satisfies the first condition, in another embodiment, the first condition may be that when the frequency of the radiation noise generated by transmitting the Bluetooth signal at a preset time interval is not perceived by a specific user or the specific user's perception is within a first preset range; and / or,

[0074] When the duration of the radiation noise generated by transmitting a Bluetooth signal for a preset transmission duration is not perceived by a specific user or the specific user's perception is within a second preset range; or rather, the above second condition or third condition can be directed at the perception level of a specific user, and this specific user can be a certain tester, such as a tester with better ear sensitivity, or a group of specific people; and the first preset range and the second preset range can be considered to be close to the level of imperceptibility, or the perceived radiation noise is very weak and will not affect most users. For example, 90% of users cannot perceive it, and the first preset range and the second preset range can be the same or different.

[0075] Embodiment Five

[0076] In the scenario where the radiation noise generated by the Bluetooth signal sent by the Bluetooth device satisfies the first condition in the above, in another embodiment, making the radiation noise generated by sending the Bluetooth signal satisfy the first condition includes: making the frequency of the radiation noise generated by sending the Bluetooth signal less than or equal to the reference value Z of the minimum frequency of the radiation noise perceptible by the human ear; and / or,

[0077] making the duration of the radiation noise generated by each sending of the Bluetooth signal less than or equal to the reference value T of the shortest duration required for a person to recognize a sound.

[0078] In this embodiment, making the radiation noise generated by sending the Bluetooth signal satisfy the first condition can include: making the frequency of the radiation noise generated by sending the Bluetooth signal less than or equal to the reference value Z of the minimum frequency of the radiation noise perceptible by the human ear; making the duration of the radiation noise generated by each sending of the Bluetooth signal less than or equal to the reference value T of the shortest duration required for a person to recognize a sound.

[0079] In this embodiment, making the radiation noise generated by sending the Bluetooth signal satisfy the first condition can include: making the frequency of the radiation noise generated by sending the Bluetooth signal less than or equal to the reference value Z of the minimum frequency of the radiation noise perceptible by the human ear.

[0080] In this embodiment, making the radiation noise generated by sending the Bluetooth signal satisfy the first condition can include: making the duration of the radiation noise generated by each sending of the Bluetooth signal less than or equal to the reference value T of the shortest duration required for a person to recognize a sound.

[0081] In this embodiment, the Bluetooth device sends Bluetooth signals at intervals of a preset time interval i and a preset transmission duration t, so that the frequency of the radiation noise generated by the Bluetooth device when sending Bluetooth signals is less than or equal to the reference value Z of the minimum frequency of the radiation noise perceptible to the human ear. Among them, the sound frequencies perceptible to the human ear are generally between 20HZ and 20000HZ, but there are differences in the sound frequencies perceptible among different individuals and also among different age groups. For example, the sound frequencies perceptible to some adults are generally 30 - 16000 Hz, and the sound frequencies perceptible to the elderly are generally 50 - 10000 Hz. Therefore, a reference value of the sound frequency perceptible to the human ear can be selected. For example, the reference value Z can be selected as 20Hz, 30Hz, 50Hz, etc. For example, when the reference value Z is 30HZ, some users may be able to perceive it, but some users may not perceive it very clearly or may not perceive it at all. Exemplarily, taking the reference value Z of the minimum frequency of the radiation noise perceptible to the human ear as 20HZ, the intensity of the radiation noise generated by the Bluetooth device when sending Bluetooth signals at intervals of a preset time interval i and a preset transmission duration t should be less than or equal to 20HZ. It should be noted that in different populations or different environments, the reference value of the minimum frequency of the radiation noise perceptible to the human ear can be different. For example, the reference value Z of the minimum frequency of the radiation noise perceptible to adults is 20HZ, and the reference value Z of the minimum frequency of the radiation noise perceptible to the elderly is 25HZ or 30HZ. The selection of the reference value of the minimum frequency of the radiation noise perceptible to the human ear can be made according to the performance requirements of the product. For example, selecting a reference value of the minimum frequency of the radiation noise perceptible to the human ear can make most users unable to perceive the radiation noise or the frequency of the perceived radiation noise is very small and its influence can be ignored, etc., thereby improving the applicability of the Bluetooth device to most users. Among them, the time of the action of the sound wave stimulation has an important influence on the auditory threshold. Generally, the shortest duration required to recognize a sound is 20ms - 50ms, but there are differences among individuals and also among different age groups. For example, the shortest duration required for some adults to recognize a sound is generally 20ms - 30ms, and the shortest duration required for the elderly to recognize a sound is generally 30ms - 50ms. Therefore, a reference value T of the shortest duration required to recognize a sound can be selected, such as 25ms, or it can also be 30ms. For example, when it is 30ms, some users may be able to recognize the sound, but some users may not perceive it very clearly or may not perceive it at all. Exemplarily, taking the reference value T of the shortest duration required for a person to recognize a sound as 25ms, the duration of the radiation noise generated by the Bluetooth device when sending Bluetooth signals with a preset transmission duration t is less than or equal to 25ms.It should be noted that in different populations or different environments, the reference value T of the shortest duration required for a person to recognize a sound can be different. For example, the reference value T of the shortest duration required for an adult to recognize a sound is 20 ms, and the reference value T of the shortest duration required for an elderly person to recognize a sound can be 40 ms or 50 ms. The selection of the reference value of the shortest duration required for a person to recognize a sound can be made according to the performance requirements of the product. For example, selecting a reference value T of the shortest duration can enable most users to not perceive the radiation noise or the perceived duration of the radiation noise is very short and its influence can be ignored, etc., thereby improving the applicability of the Bluetooth device to most users.

[0082] In this embodiment, since the Bluetooth device sends Bluetooth signals at preset time intervals i and preset transmission durations t, the frequency of the generated radiation noise is less than or equal to the reference value of the minimum frequency of the radiation noise that can be perceived by the human ear, and the duration of the generated radiation noise is less than or equal to the reference value of the shortest duration required for a person to recognize a sound. In this case, the time interval for the Bluetooth device to send Bluetooth signals is longer and the transmission duration is smaller, so that the Bluetooth device can generate radiation noise with a lower frequency or a shorter duration, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones, that is, reducing the interference on sensitive components such as speakers and microphones when the Bluetooth device sends a Bluetooth connection request signal. Or, since the frequency of the radiation noise generated by the Bluetooth device when sending Bluetooth signals at preset time intervals i is less than or equal to the reference value of the minimum frequency of the radiation noise that can be perceived by the human ear, in this case, the time interval for the Bluetooth device to send Bluetooth signals is longer, so that the Bluetooth device can generate radiation noise with a lower frequency, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones. Or, since the duration of the radiation noise generated by the Bluetooth device when sending Bluetooth signals with a preset transmission duration t is less than or equal to the reference value of the shortest duration required for a person to recognize a sound, in this case, the transmission duration for the Bluetooth device to send Bluetooth signals is smaller, so that the Bluetooth device can generate radiation noise with a shorter duration, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones, that is, reducing the interference on sensitive components such as speakers and microphones when the Bluetooth device sends a Bluetooth connection request signal.

[0083] Embodiment Six

[0084] In the scenario where the above Bluetooth device sends Bluetooth signals at preset time intervals i and preset transmission durations t, in another embodiment, the preset time interval i is greater than or equal to I, where I = 1 second / Z; and / or, the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0085] In this embodiment, the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and / or the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25. Since the human ear can generally perceive sound frequencies above 20 Hz, therefore, the frequency of the radiation noise generated by the Bluetooth device sending Bluetooth signals can be controlled below 20 Hz (in the case of allowing a small amount of noise to be heard, the frequency of the radiation noise can also be set below 30 Hz). Taking the frequency of the generated radiation noise as 20 Hz as an example, the transmission time interval is 50 ms (1 s / 20 = 50 ms). In order to make the frequency of the radiation noise generated by the Bluetooth device sending Bluetooth signals less than 20 Hz, a transmission time interval greater than or equal to 50 ms is required. Generally, the longer the Bluetooth device sends Bluetooth signals, the more obvious the radiation noise generated when sending Bluetooth signals is perceived by the user. Generally, the shortest transmission time of the Bluetooth device's Bluetooth signal is 1.25 ms, and the duration of the Bluetooth signal is 5 ms. Within this duration, the Bluetooth device can send Bluetooth signals 5 / 1.25 = 4 times. And, the preset transmission duration is N times of 1.25 ms, but the preset transmission duration cannot exceed the preset time interval. Therefore, N is an integer greater than 1 and less than i / 1.25. For example, when the preset time interval i is equal to 50 ms, N is equal to 40, then N is greater than 1 and less than 40.

[0086] In this embodiment, the Bluetooth device sends Bluetooth signals at intervals of the preset time interval i and / or the preset transmission duration t. Among them, the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25, which can ensure that the Bluetooth device can send Bluetooth signals completely at this preset time interval and preset transmission duration. In addition, since sending Bluetooth signals at intervals of the preset time interval i and the preset transmission duration t can make the time interval of the Bluetooth device when sending Bluetooth signals longer and the transmission duration smaller, so that the frequency of the radiation noise generated by the Bluetooth device is lower or the duration is shorter, thereby reducing the interference caused by electromagnetic radiation to sensitive components such as speakers and microphones. Or, since sending Bluetooth signals at intervals of the preset time interval i can make the time interval of the Bluetooth device when sending Bluetooth signals longer, so that the frequency of the radiation noise generated by the Bluetooth device is lower, thereby reducing the interference caused by electromagnetic radiation to sensitive components such as speakers and microphones. Or, since the preset transmission duration t can make the transmission duration of the Bluetooth device when sending Bluetooth signals smaller, so that the duration of the radiation noise generated by the Bluetooth device is shorter, thereby reducing the interference caused by electromagnetic radiation to sensitive components such as speakers and microphones.

[0087] Embodiment Seven

[0088] In the scenario where the above Bluetooth device sends Bluetooth signals at preset time intervals i and preset transmission durations t at regular intervals, in another embodiment, the preset time interval is greater than or equal to a preset time interval threshold, and the preset time interval threshold includes any one of 50 ms, 40 ms, 33 ms, and 20 ms; and / or,

[0089] The preset transmission duration includes any one of: 2.5 ms, 3.75 ms, 5 ms, 6.25 ms, 7.5 ms, 8.75 ms, 10 ms, 11.25 ms, 12.5 ms, 13.75 ms, 15 ms, 16.25 ms, 17.5 ms, 18.75 ms, 20 ms, 21.25 ms, 22.5 ms, 23.75 ms, 25 ms, 26.25 ms, 27.5 ms, 28.75 ms, 30 ms, 31.25 ms, 32.5 ms, 33.75 ms, 35 ms, 36.25 ms, 37.5 ms, 38.75 ms, 40 ms, 41.25 ms, 42.5 ms, 43.75 ms, 45 ms, 46.75 ms, 48 ms, 49.25 ms.

[0090] It should be noted that due to differences in the perception of radiation noise among different individuals, there are also differences in the perception of radiation noise among individuals in each different age group. Generally, the smaller the sound frequency that the human ear can perceive, the larger the preset time interval for the Bluetooth device to send Bluetooth signals, and the larger the sound frequency that the human ear can perceive, the smaller the preset time interval for the Bluetooth device to send Bluetooth signals. Therefore, for different individuals or individuals in different age groups, the preset time interval for the Bluetooth device to send Bluetooth signals is also different. Correspondingly, the preset time interval threshold in this embodiment is also different. Since the minimum time for the Bluetooth device to transmit Bluetooth signals is 1.25 ms, the above preset transmission duration can be a multiple of 1.25 ms, and multiples of 1.25 ms within 50 ms can all be used as the preset transmission duration of the Bluetooth device, that is, the above-listed preset transmission durations. Those skilled in the art can select appropriate preset time intervals and transmission durations according to actual needs.

[0091] It should be noted that while meeting the conditions disclosed in Embodiments 2 to 7 above for meeting the first condition to reduce the background noise generated by transmitting Bluetooth signals, the Bluetooth connection performance can also be considered. For example, when performing a Bluetooth connection according to the above preset Bluetooth parameters, the Bluetooth connection performance of the Bluetooth device should meet specific conditions. The Bluetooth connection performance can be measured by means such as the Bluetooth connection speed at a specific distance. Therefore, the Bluetooth connection performance meeting specific conditions can mean that within a specific distance, the requirements for Bluetooth connection can be met. For example, within a specific distance, the Bluetooth connection speed requirement is met, or the Bluetooth connection duration requirement is met, etc. The preset Bluetooth connection performance can be determined according to product requirements, user experience, etc. For example, when determining the preset transmission duration and / or preset time interval, the preset time interval and preset transmission duration can also be determined according to the Bluetooth connection performance to facilitate Bluetooth connection. In addition, the adjustment of the above Bluetooth parameters can be made during the process of establishing a Bluetooth connection or before establishing a Bluetooth connection, and there is no limitation on this.

[0092] Embodiment 8

[0093] In the scenario where the above Bluetooth device transmits Bluetooth signals at intervals of a preset time interval and a preset transmission duration, the focus was on how to make the radiation noise generated by transmitting Bluetooth signals meet the first condition. Now, the detailed process of determining the time interval and the transmission duration will be mainly introduced. It should be noted that the preset time interval and the preset transmission duration can be determined by the Bluetooth device itself or by a specified Bluetooth device. The specified Bluetooth device can be the above Bluetooth device or a Bluetooth device with the same performance as the above Bluetooth device, such as an engineering prototype, a pre-production prototype, etc. After determining the preset transmission power through testing, it is set in the above Bluetooth device during mass production. Of course, it can also be determined according to the user's needs after the Bluetooth device is shipped out, and the principle is the same. This application does not limit this.

[0094] In this embodiment, before the Bluetooth device sends Bluetooth signals at every preset time interval i and / or preset transmission duration t, it is necessary to first determine the preset time interval and preset transmission duration so that the radiation noise generated by sending Bluetooth signals meets the above first condition. Optionally, the preset time interval and preset transmission duration can be obtained through tests before the Bluetooth device leaves the factory, and can be determined by manual or machine tests. For example, by adjusting the current transmission time interval and current transmission duration of the Bluetooth device, when the radiation noise generated by sending Bluetooth signals meets the above first condition, the current time interval and current transmission duration are used as the above preset time interval and preset transmission duration. Generally, the transmission time interval of the Bluetooth device is 20 ms to 50 ms, the shortest transmission duration of the Bluetooth device is 1.25 ms, the Bluetooth device can start adjusting the current time interval for sending Bluetooth signals from 20 ms, and start adjusting the current transmission duration of the Bluetooth device from 1.25 ms. When the radiation noise generated by the Bluetooth device sending Bluetooth signals at the current time interval and current transmission duration meets the above first condition, the current transmission duration is determined as the above preset transmission duration, and the current time interval is determined as the above preset time interval. Exemplarily, taking the preset transmission time adjustment interval as 2 ms as an example, the Bluetooth device starts from 20 ms and adjusts the current time interval for sending Bluetooth signals at a transmission time adjustment interval of 2 ms. When the Bluetooth transmission time interval of the Bluetooth device is adjusted to 24 ms, the radiation noise generated by sending Bluetooth signals meets the above first condition, then the Bluetooth device determines the current time interval 24 ms as the above preset time interval. The Bluetooth device starts from 1.25 ms and adjusts the current transmission duration of sending Bluetooth signals in steps of 1.25 ms. When the transmission duration of the Bluetooth device is adjusted to 6.25 ms, the radiation noise generated by sending Bluetooth signals meets the above first condition, then the Bluetooth device determines the current transmission duration 6.25 ms as the above preset transmission duration. The embodiments of the present application are not limited thereto. Optionally, the Bluetooth device can adjust the current time interval and current transmission duration of sending Bluetooth signals at the same time, or can adjust the current time interval and current transmission duration of sending Bluetooth signals separately, as long as the determined preset time interval and preset transmission duration meet the above first condition. This embodiment does not make any restrictions here.

[0095] To improve the generality of the preset time interval and preset transmission duration, for example, taking a Bluetooth device as a Bluetooth headset, 100 users can be randomly selected to adjust the time interval and transmission duration of the Bluetooth headset for transmitting Bluetooth signals. When the adjusted time interval and transmission duration result in radiation noise generated by transmitting the Bluetooth signal such that more than 60 out of the 100 users cannot perceive the radiation noise, the time interval and transmission duration at this time are determined as the preset time interval and preset transmission duration. Optionally, the specific proportion of users who cannot perceive the radiation noise generated by transmitting the Bluetooth signal can be adjusted according to the performance requirements of the product. Of course, it can also be determined based on the perception level of a specific person (such as a person with high hearing perception sensitivity).

[0096] Embodiment Nine

[0097] In the scenario of determining the preset time interval and preset transmission duration of a Bluetooth device by the specified Bluetooth device as described above, the specified Bluetooth device can be the above-mentioned Bluetooth device or a Bluetooth device with the same performance as the above-mentioned Bluetooth device, such as an engineering prototype, a pre-production prototype, etc. In another embodiment, determining the preset time interval and / or preset transmission duration by the specified Bluetooth device includes: adjusting the time interval for transmitting the Bluetooth signal to obtain the current time interval, and / or, adjusting the transmission duration of the Bluetooth signal to obtain the current transmission duration; when the radiation noise generated by transmitting the Bluetooth signal at the current time interval and / or current transmission duration satisfies the first condition during part or all of the process of establishing a Bluetooth connection, determining the current transmission duration as the preset transmission duration and the current time interval as the preset time interval.

[0098] In this embodiment, determining the preset time interval and / or preset transmission duration by the specified Bluetooth device includes: adjusting the time interval for transmitting the Bluetooth signal to obtain the current time interval, and adjusting the transmission duration of the Bluetooth signal to obtain the current transmission duration; when the radiation noise generated by transmitting the Bluetooth signal at the current time interval and current transmission duration satisfies the first condition during part or all of the process of establishing a Bluetooth connection, determining the current transmission duration as the preset transmission duration and the current time interval as the preset time interval.

[0099] In this embodiment, determining the preset time interval and / or preset transmission duration by the specified Bluetooth device includes: adjusting the time interval for transmitting the Bluetooth signal to obtain the current time interval; when the radiation noise generated by transmitting the Bluetooth signal at the current time interval satisfies the first condition during part or all of the process of establishing a Bluetooth connection, determining the current time interval as the preset time interval.

[0100] In this embodiment, the above preset time interval and / or preset transmission duration are determined by a specified Bluetooth device, including: the transmission duration of the transmitted Bluetooth signal is adjusted to obtain a current transmission duration; during part or all of the process of establishing a Bluetooth connection, when the radiation noise generated by transmitting the Bluetooth signal with the current transmission duration meets the first condition, the current transmission duration is determined as the preset transmission duration.

[0101] It should be noted that the Bluetooth device can adjust the Bluetooth transmission time interval and the Bluetooth transmission duration simultaneously, or separately adjust the Bluetooth transmission time interval and the Bluetooth transmission duration, as long as the determined preset time interval and preset transmission duration meet the above first condition. This embodiment does not limit this here. Exemplarily, for the specific process of determining the preset time interval and / or preset transmission duration, reference can be made to the description of Embodiment 8 above, and this embodiment will not elaborate here.

[0102] In some scenarios, during the process of determining the preset time interval and / or preset transmission duration, the Bluetooth connection performance should also be considered. Therefore, the preset time interval and / or preset transmission duration are determined by a specified Bluetooth device, including: the time interval of the transmitted Bluetooth signal is adjusted to obtain a current time interval, and / or, the transmission duration of the transmitted Bluetooth signal is adjusted to obtain a current transmission duration; during part or all of the process of establishing a Bluetooth connection, when the radiation noise generated by transmitting the Bluetooth signal with the current time interval and / or current transmission duration meets the first condition and the Bluetooth connection performance of the specified Bluetooth device meets a specific condition, then the current transmission duration can be used as the preset transmission duration, and the current time interval can be used as the preset time interval.

[0103] In this embodiment, the above preset time interval and / or preset transmission duration are determined by a specified Bluetooth device, including: the time interval of the transmitted Bluetooth signal is adjusted to obtain a current time interval, and the transmission duration of the transmitted Bluetooth signal is adjusted to obtain a current transmission duration; during part or all of the process of establishing a Bluetooth connection, when the radiation noise generated by transmitting the Bluetooth signal with the current time interval and current transmission duration meets the first condition and the Bluetooth connection performance of the specified Bluetooth device meets a specific condition, the current transmission duration is determined as the preset transmission duration, and the current time interval is determined as the preset time interval.

[0104] In this embodiment, the above preset time interval and / or preset transmission duration are determined by a specified Bluetooth device, including: the time interval of the transmitted Bluetooth signal is adjusted to obtain a current time interval; during part or all of the process of establishing a Bluetooth connection, when the radiation noise generated by transmitting the Bluetooth signal with the current time interval meets the first condition and the Bluetooth connection performance of the specified Bluetooth device meets a specific condition, the current time interval is determined as the preset time interval.

[0105] In this embodiment, the preset time interval and / or the preset transmission duration are determined by a specified Bluetooth device, including: the transmission duration of the transmitted Bluetooth signal is adjusted to obtain the current transmission duration; during part or all of the process of establishing a Bluetooth connection, when the radiation noise generated by transmitting the Bluetooth signal at the current transmission duration satisfies a first condition and the Bluetooth connection performance of the specified Bluetooth device satisfies a specific condition, the current transmission duration is determined as the preset transmission duration.

[0106] In this embodiment, when the radiation noise generated by transmitting the Bluetooth signal at the current time interval and / or the current transmission duration satisfies the first condition, when performing Bluetooth connection according to the preset Bluetooth parameters, the Bluetooth connection performance of the Bluetooth device should satisfy a specific condition. The Bluetooth connection performance can be measured by means such as the Bluetooth connection speed at a specific distance. Therefore, the Bluetooth connection performance satisfying the specific condition can be that, within a specific distance, the requirements for Bluetooth connection can be met. For example, within a specific distance, the Bluetooth connection speed requirement is satisfied, or the Bluetooth connection duration requirement is satisfied, etc. The preset Bluetooth connection performance can be determined according to product requirements, user experience, etc. For example, when determining the preset transmission duration and / or the preset time interval, the preset time interval and the preset transmission duration can also be determined according to the Bluetooth connection performance to facilitate Bluetooth connection. In addition, the adjustment of the above Bluetooth parameters can be performed during the process of establishing a Bluetooth connection or before establishing a Bluetooth connection, and there is no limitation on this.

[0107] In this embodiment, the time interval for the Bluetooth device to transmit Bluetooth signals is adjusted to obtain the current time interval, and the transmission duration for transmitting Bluetooth signals is adjusted to obtain the current transmission duration, which can ensure that the Bluetooth device transmits Bluetooth signals at this time interval and transmission duration, so that the radiation noise generated by transmitting Bluetooth signals meets the first condition, ensuring that the Bluetooth device has a relatively large time interval and a relatively small transmission duration when transmitting Bluetooth signals, resulting in a very low frequency or a very short duration of the generated radiation noise, thereby reducing the interference caused by electromagnetic radiation to sensitive components such as speakers and microphones. Or, the time interval for the Bluetooth device to transmit Bluetooth signals is adjusted to obtain the current time interval, which can ensure that the Bluetooth device transmits Bluetooth signals at this time interval, so that the radiation noise generated by transmitting Bluetooth signals meets the first condition, ensuring that the Bluetooth device has a relatively large time interval when transmitting Bluetooth signals, resulting in a very low frequency of the generated radiation noise, thereby reducing the interference caused by electromagnetic radiation to sensitive components such as speakers and microphones. Or, the transmission duration for the Bluetooth device to transmit Bluetooth signals is adjusted to obtain the current transmission duration, which can ensure that the Bluetooth device transmits Bluetooth signals at this transmission duration, so that the radiation noise generated by transmitting Bluetooth signals meets the first condition, ensuring that the Bluetooth device has a relatively small transmission duration when transmitting Bluetooth signals, resulting in a very short duration of the generated radiation noise, thereby reducing the interference caused by electromagnetic radiation to sensitive components such as speakers and microphones. Moreover, when determining the preset time interval and preset transmission duration for transmitting Bluetooth signals, the Bluetooth connection performance is also considered to ensure the Bluetooth connection quality.

[0108] Embodiment Ten

[0109] In the scenario where the above preset time interval and preset transmission duration are determined by a specified Bluetooth device, the specified Bluetooth device can be the above Bluetooth device or a Bluetooth device with the same performance as the above Bluetooth device, such as an engineering prototype, a pre-production prototype, etc. In another embodiment, the above preset time interval, and / or, preset transmission duration are determined by a specified Bluetooth device, including: the time interval for transmitting Bluetooth signals is adjusted to obtain the current time interval, and / or, the transmission duration for transmitting Bluetooth signals is adjusted to obtain the current transmission duration; when the frequency of the radiation noise generated by transmitting Bluetooth signals at the current time interval meets the second condition during part or all of the process of establishing a Bluetooth connection by the specified Bluetooth device, and / or, the duration of the radiation noise generated by transmitting Bluetooth signals each time at the current transmission duration meets the third condition, the current transmission duration is determined as the preset transmission duration, and the current time interval is determined as the preset time interval; where the second condition is used to characterize the degree to which the frequency of the radiation noise is perceived by the user, and the third condition is used to characterize the degree to which the duration of the radiation noise generated by transmitting Bluetooth signals each time is perceived by the user.

[0110] It should be noted that the second condition in the embodiments of the present application may also be the fourth condition, and the fourth condition is used to characterize the degree to which the frequency of the radiation noise is perceived by the user; the third condition may also be the fifth condition, and the fifth condition is used to characterize the degree to which the duration of the radiation noise generated each time a Bluetooth signal is sent is perceived by the user.

[0111] In this embodiment, the above-mentioned preset time interval, and / or, the preset transmission duration are determined by a specified Bluetooth device, including: the time interval for sending Bluetooth signals is adjusted to obtain the current time interval, and the transmission duration for sending Bluetooth signals is adjusted to obtain the current transmission duration; during part or all of the process of establishing a Bluetooth connection, when the frequency of the radiation noise generated by sending Bluetooth signals at the current time interval satisfies the second condition, and the duration of the radiation noise generated each time Bluetooth signals are sent at the current transmission duration satisfies the third condition, the current transmission duration is determined as the preset transmission duration, and the current time interval is determined as the preset time interval.

[0112] In this embodiment, the above-mentioned preset time interval, and / or, the preset transmission duration are determined by a specified Bluetooth device, including: the time interval for sending Bluetooth signals is adjusted to obtain the current time interval; during part or all of the process of establishing a Bluetooth connection, when the frequency of the radiation noise generated by sending Bluetooth signals at the current time interval satisfies the second condition, the current time interval is determined as the preset time interval.

[0113] In this embodiment, the above-mentioned preset time interval, and / or, the preset transmission duration are determined by a specified Bluetooth device, including: the transmission duration for sending Bluetooth signals is adjusted to obtain the current transmission duration; during part or all of the process of establishing a Bluetooth connection, when the duration of the radiation noise generated each time Bluetooth signals are sent at the current transmission duration satisfies the third condition, the current transmission duration is determined as the preset transmission duration.

[0114] Optionally, the second and third conditions that the frequency of the radiation noise generated by sending Bluetooth signals should satisfy can be obtained by testing individuals of different age groups, or can also be obtained by testing simulated human ears of different materials. It should be noted that since there are differences in the perception of radiation noise among different individuals, and there are also differences in the perception of radiation noise among individuals in each different age group. Generally, the smaller the sound frequency that the human ear can perceive, the larger the preset time interval for the Bluetooth device to send Bluetooth signals, and the larger the sound frequency that the human ear can perceive, the smaller the preset time interval for the Bluetooth device to send Bluetooth signals. Therefore, for different individuals or individuals in different age groups, the preset time interval for the Bluetooth device to send Bluetooth signals is also different. The shortest duration required to recognize sound is generally 20 ms to 50 ms, but there are differences among individuals and also among different age groups. For specific descriptions, please refer to the description of Embodiment 5 above. Therefore, the time interval for sending Bluetooth signals is adjusted to obtain the current time interval, and the transmission duration for sending Bluetooth signals is adjusted to obtain the current transmission duration. During part or all of the process of establishing a Bluetooth connection, when the frequency of the radiation noise generated by sending Bluetooth signals at the current time interval satisfies the second condition, and the duration of the radiation noise generated by sending Bluetooth signals each time at the current transmission duration satisfies the third condition, the current transmission duration is determined as the above-mentioned preset transmission duration, and the current transmission time interval is determined as the above-mentioned preset time interval, which can ensure that the radiation noise generated by the Bluetooth device sending Bluetooth signals at this transmission time interval and transmission duration satisfies the above-mentioned first condition. Or, the time interval for sending Bluetooth signals is adjusted to obtain the current time interval. During part or all of the process of establishing a Bluetooth connection, when the frequency of the radiation noise generated by sending Bluetooth signals at the current time interval satisfies the second condition, the current transmission time interval is determined as the above-mentioned preset time interval, which can ensure that the radiation noise generated by the Bluetooth device sending Bluetooth signals at this transmission time interval satisfies the above-mentioned first condition. Or, the transmission duration for sending Bluetooth signals is adjusted to obtain the current transmission duration. During part or all of the process of establishing a Bluetooth connection, when the duration of the radiation noise generated by sending Bluetooth signals each time at the current transmission duration satisfies the third condition, the current transmission duration is determined as the above-mentioned preset transmission duration, which can ensure that the radiation noise generated by the Bluetooth device sending Bluetooth signals at this transmission duration satisfies the above-mentioned first condition.

[0115] In this embodiment, the time interval for transmitting the Bluetooth signal is adjusted to obtain the current time interval, and the transmission duration for transmitting the Bluetooth signal is adjusted to obtain the current transmission duration. During part or all of the process of establishing a Bluetooth connection, when the frequency of the radiation noise generated by transmitting the Bluetooth signal at the current time interval satisfies the second condition, and the duration of the radiation noise generated by transmitting the Bluetooth signal at the current transmission duration each time satisfies the third condition, the corresponding current transmission duration is determined as the preset transmission duration, and the current time interval for transmission is determined as the preset time interval, which can ensure that the Bluetooth device transmits the Bluetooth signal at this time interval and transmission duration, so that the radiation noise generated by transmitting the Bluetooth signal satisfies the first condition, ensuring that the time interval for the Bluetooth device to transmit the Bluetooth signal is large and the transmission duration is small, resulting in a very low frequency of the generated radiation noise, thereby reducing the interference of electromagnetic radiation on sensitive components such as speakers and microphones. Alternatively, the time interval for transmitting the Bluetooth signal is adjusted to obtain the current time interval. During part or all of the process of establishing a Bluetooth connection, when the frequency of the radiation noise generated by transmitting the Bluetooth signal at the current time interval satisfies the second condition, it ensures that the time interval for the Bluetooth device to transmit the Bluetooth signal is large, resulting in a very low frequency of the generated radiation noise. Alternatively, the transmission duration for transmitting the Bluetooth signal is adjusted to obtain the current transmission duration. During part or all of the process of establishing a Bluetooth connection, when the duration of the radiation noise generated by transmitting the Bluetooth signal at the current transmission duration each time satisfies the third condition, the corresponding current transmission duration is determined as the preset transmission duration, ensuring that the transmission duration for the Bluetooth device to transmit the Bluetooth signal is small.

[0116] Embodiment XI

[0117] In one embodiment, the above-mentioned preset time interval, and / or, the preset transmission duration is determined by a specified Bluetooth device, including: the time interval for transmitting the Bluetooth signal is adjusted to obtain the current time interval, and / or, the transmission duration for transmitting the Bluetooth signal is adjusted to obtain the current transmission duration; during part or all of the process of establishing a Bluetooth connection by the specified Bluetooth device, when the frequency of the radiation noise generated by transmitting the Bluetooth signal at the current time interval is not perceived by a specific user or the perception of the specific user is within the first preset range; and / or,

[0118] when the duration of the radiation noise generated by transmitting the Bluetooth signal at the preset transmission duration is not perceived by a specific user or the perception of the specific user is within the second preset range, the current transmission duration is determined as the preset transmission duration, and the current time interval is determined as the preset time interval.

[0119] In this embodiment, the radiation noise generated by the Bluetooth signal transmitted by the Bluetooth device satisfies the first condition. Optionally, the first condition may be that when the frequency of the radiation noise generated by transmitting the Bluetooth signal at the preset time interval is not perceived by a specific user or the perception of the specific user is within the first preset range; and / or,

[0120] When the duration of the radiation noise generated by transmitting the Bluetooth signal for the preset transmission duration is not perceived by a specific user or the specific user perceives it within the second preset range; or rather, the above second condition or third condition can be directed to the perception level of a specific user, and this specific user can be a certain tester, such as a tester with better ear sensitivity, or a group of specific people; and the first preset range and the second preset range can be considered to be close to the level of imperceptibility, or it is considered that the perceived radiation noise is very weak and will not affect most users. For example, 90% of users cannot perceive it, and the first preset range and the second preset range can be the same or different.

[0121] Embodiment Twelve

[0122] In the above scenario of determining the preset time interval and the preset transmission duration of the Bluetooth device, in another embodiment, the determination of the preset time interval and / or the preset transmission duration includes: the time interval for transmitting the Bluetooth signal is adjusted to obtain the current time interval, and / or, the transmission duration for transmitting the Bluetooth signal is adjusted to obtain the current transmission duration; when, during part or all of the process of establishing a Bluetooth connection for the specified Bluetooth device, the frequency of the radiation noise generated by transmitting the Bluetooth signal at the current time interval is less than or equal to the reference value Z of the minimum frequency of the radiation noise perceptible by the human ear, and / or, the duration of the radiation noise generated by transmitting the Bluetooth signal each time at the current transmission duration is less than or equal to the reference value T of the shortest duration required for a person to recognize a sound, the current transmission duration is determined as the preset transmission duration, and the current time interval is determined as the preset time interval.

[0123] In this embodiment, the determination of the preset time interval and / or the preset transmission duration includes: the time interval for transmitting the Bluetooth signal is adjusted to obtain the current time interval, and, the transmission duration for transmitting the Bluetooth signal is adjusted to obtain the current transmission duration; when, during part or all of the process of establishing a Bluetooth connection for the specified Bluetooth device, the frequency of the radiation noise generated by transmitting the Bluetooth signal at the current time interval is less than or equal to the reference value Z of the minimum frequency of the radiation noise perceptible by the human ear, and, the duration of the radiation noise generated by transmitting the Bluetooth signal each time at the current transmission duration is less than or equal to the reference value T of the shortest duration required for a person to recognize a sound, the current transmission duration is determined as the preset transmission duration, and the current time interval is determined as the preset time interval.

[0124] In this embodiment, the determination of the preset time interval and / or the preset transmission duration includes: the time interval for transmitting the Bluetooth signal is adjusted to obtain the current time interval; when, during part or all of the process of establishing a Bluetooth connection for the specified Bluetooth device, the frequency of the radiation noise generated by transmitting the Bluetooth signal at the current time interval is less than or equal to the reference value Z of the minimum frequency of the radiation noise perceptible by the human ear, the current time interval is determined as the preset time interval.

[0125] In this embodiment, the determination of the preset time interval and / or the preset transmission duration includes: the transmission duration of the Bluetooth signal is adjusted to obtain the current transmission duration; when the duration of the radiation noise generated each time the Bluetooth signal is transmitted at the current transmission duration is less than or equal to the reference value T of the shortest duration required for a person to recognize a sound during part or all of the process of establishing a Bluetooth connection by a specified Bluetooth device, the current transmission duration is determined as the preset transmission duration.

[0126] Among them, for the specific description of the sound frequency perceptible to the human ear, please refer to the above-mentioned Embodiment 2. Exemplarily, the selected reference value of the sound frequency perceptible to the human ear can be 20 HZ or 30 HZ. For the specific description of the shortest duration required for a general human ear to recognize a sound, please refer to the above-mentioned Embodiment 3. Exemplarily, the selected reference value of the shortest duration required for recognizing a sound can be 25 ms or 30 ms. Exemplarily, taking the reference value Z of the minimum frequency of the radiation noise perceptible to the human ear as 20 HZ, the reference value T of the shortest duration required for a person to recognize a sound as 25 ms, and adjusting both the time interval and the transmission duration at the same time as an example, the time interval for transmitting the Bluetooth signal is adjusted to obtain the current time interval, and the transmission duration of the Bluetooth signal is adjusted to obtain the current transmission duration. When the frequency of the radiation noise generated by the Bluetooth device transmitting the Bluetooth signal at the current time interval is less than or equal to the reference value 20 HZ of the minimum frequency of the radiation noise perceptible to the human ear, and the duration of the radiation noise generated each time the Bluetooth signal is transmitted at the current transmission duration is less than or equal to the reference value 25 ms of the shortest duration required for a person to recognize a sound, the Bluetooth device determines the current transmission duration as the above-mentioned preset transmission duration and determines the current transmission time interval as the above-mentioned preset time interval.

[0127] In this embodiment, the time interval for transmitting Bluetooth signals is adjusted to obtain a current time interval, and the transmission duration of the Bluetooth signals is adjusted to obtain a current transmission duration. When the frequency of the radiation noise generated by transmitting Bluetooth signals at the current time interval satisfies a second condition, and the duration of the radiation noise generated by transmitting Bluetooth signals at the current transmission duration each time satisfies a third condition, the corresponding current transmission duration is determined as a preset transmission duration, and the current transmission time interval is determined as a preset time interval, which can ensure that the Bluetooth device transmits Bluetooth signals at this time interval and transmission duration, so that the radiation noise generated by transmitting Bluetooth signals satisfies a first condition, ensuring that the Bluetooth device has a relatively large time interval and / or a relatively small transmission duration when transmitting Bluetooth signals, resulting in a very low frequency or a very short duration of the generated radiation noise, thereby reducing the interference caused by electromagnetic radiation to sensitive components such as speakers and microphones. Alternatively, the time interval for transmitting Bluetooth signals is adjusted to obtain a current time interval. When the frequency of the radiation noise generated by transmitting Bluetooth signals at the current time interval satisfies a second condition, the current transmission time interval is determined as a preset time interval, which can ensure that the Bluetooth device transmits Bluetooth signals at this time interval, so that the radiation noise generated by transmitting Bluetooth signals satisfies a first condition, ensuring that the Bluetooth device has a relatively large time interval when transmitting Bluetooth signals. Or, the transmission duration of the Bluetooth signals is adjusted to obtain a current transmission duration. When the duration of the radiation noise generated by transmitting Bluetooth signals at the current transmission duration each time satisfies a third condition, the corresponding current transmission duration is determined as a preset transmission duration, so that the radiation noise generated by transmitting Bluetooth signals satisfies a first condition, ensuring that the Bluetooth device has a relatively small transmission duration when transmitting Bluetooth signals.

[0128] Embodiment Thirteen

[0129] In the above scenario where the radiation noise generated by the Bluetooth signals transmitted by the Bluetooth device satisfies the first condition, in another embodiment, making the radiation noise generated by transmitting Bluetooth signals satisfy the first condition includes: making the radiation noise generated by transmitting Bluetooth signals less than or equal to the reference value of the absolute auditory threshold.

[0130] In this embodiment, the Bluetooth device sends Bluetooth signals at intervals of a preset time interval i and a preset transmission duration t, such that the radiation noise generated by the Bluetooth device when sending Bluetooth signals is less than or equal to the reference value of the absolute auditory threshold of the human ear. Among them, the absolute auditory threshold of the human ear refers to the weakest sound that the human auditory system can perceive. The absolute auditory threshold of hearing includes a frequency threshold, a sound pressure threshold, and a sound intensity threshold. The reference value of this absolute auditory threshold of hearing can be any one of the reference value of the frequency threshold, the reference value of the sound pressure threshold, and the reference value of the sound intensity threshold. In this embodiment, the radiation noise generated by the Bluetooth device when sending Bluetooth signals is less than or equal to the reference value of the absolute auditory threshold of the human ear, that is, the radiation noise generated by the Bluetooth device when sending Bluetooth signals is less than or equal to the weakest sound that the human auditory system can perceive. Exemplarily, taking the reference value of the frequency threshold of the absolute auditory threshold of the human ear as 20 HZ, the frequency of the radiation noise generated by the Bluetooth signal sent by the Bluetooth device according to the above-mentioned preset transmission power is less than or equal to 20 HZ. It should be noted that in different populations or different environments, the reference value of the absolute auditory threshold of the human ear can be different. For example, the reference value of the frequency threshold of the minimum radiation noise that an adult can perceive can be 20 HZ, and the reference value of the frequency threshold of the minimum radiation noise that an elderly person can perceive can be 23 HZ or 28 HZ, which is not limited in the embodiments of the present application.

[0131] In this embodiment, since the radiation noise generated by the Bluetooth device when sending Bluetooth signals at intervals of a preset time interval i and a preset transmission duration t is less than or equal to the reference value of the absolute auditory threshold, in this case, the time interval when the Bluetooth device sends Bluetooth signals is relatively large and / or the transmission duration is relatively small, so that the frequency of the radiation noise generated by the Bluetooth device can be very low or the duration can be very short, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones, that is, reducing the interference on sensitive components such as speakers and microphones when the Bluetooth device sends a Bluetooth connection request signal.

[0132] Embodiment Fourteen

[0133] In the scenario of determining the preset time interval and the preset transmission duration for the Bluetooth device to send Bluetooth signals as described above, in another embodiment, determining the preset time interval and / or the preset transmission duration includes: determining the preset transmission duration and / or the preset time interval according to the reference value of the absolute auditory threshold.

[0134] In this embodiment, since the Bluetooth signal sent by the Bluetooth device at every preset time interval and preset transmission duration can make the radiation noise generated by the Bluetooth device when sending the Bluetooth signal less than or equal to the reference value of the absolute auditory threshold, the Bluetooth device can determine the above-mentioned preset transmission duration and / or preset time interval according to the reference value of the absolute auditory threshold. Optionally, if the radiation noise generated by the Bluetooth signal sent by the Bluetooth device at the current preset time interval and the current preset transmission duration is less than or equal to the reference value of the absolute auditory threshold, the Bluetooth device will determine the current preset time interval as the above-mentioned preset time interval and the current preset transmission duration as the above-mentioned preset transmission duration.

[0135] In this embodiment, since the Bluetooth device determines the preset transmission duration and / or preset time interval according to the reference value of the absolute auditory threshold, it can ensure that the radiation noise generated by sending the Bluetooth signal at every preset time interval and the preset transmission duration is less than or equal to the reference value of the absolute auditory threshold. In this case, the time interval for the Bluetooth device to send the Bluetooth signal is relatively large and / or the transmission duration is relatively small, so that the frequency of the radiation noise generated by the Bluetooth device can be very low, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones, that is, reducing the interference on sensitive components such as speakers and microphones when the Bluetooth device sends a Bluetooth connection request signal.

[0136] It should be noted that when reducing the background noise generated by sending the Bluetooth signal by satisfying the first condition in the above-mentioned Embodiments 8 to 14, the Bluetooth connection performance can also be considered. For example, when performing a Bluetooth connection according to the above-mentioned preset Bluetooth parameters, the Bluetooth connection performance of the Bluetooth device should meet specific conditions. That is to say, when determining Bluetooth parameters such as the preset time interval and the preset transmission duration, it is necessary to determine according to the fact that during part or all of the Bluetooth connection process, the Bluetooth radiation noise meets the first condition and the Bluetooth connection performance meets specific conditions. The Bluetooth connection performance can be measured by means such as the Bluetooth connection speed at a specific distance. Therefore, the Bluetooth connection performance meeting specific conditions can be that within a specific distance, the requirements for Bluetooth connection can be met. For example, within a specific distance, the Bluetooth connection speed requirement can be met, or the Bluetooth connection duration requirement can be met, etc. The preset Bluetooth connection performance can be determined according to product requirements, user experience, etc. For example, when determining the preset transmission duration and / or preset time interval, the preset time interval and the preset transmission duration can also be determined according to the Bluetooth connection performance to be beneficial to the Bluetooth connection. In addition, the adjustment of the above-mentioned Bluetooth parameters can be adjusted during the process of establishing a Bluetooth connection or before establishing a Bluetooth connection, and no limitation is imposed on this.

[0137] Embodiment 15

[0138] In the scenario where the above Bluetooth device sends Bluetooth signals at preset time intervals and preset transmission durations, the Bluetooth device is a Bluetooth headset. In one embodiment, the Bluetooth device sends Bluetooth signals at preset time intervals and / or preset transmission durations, including: when it is determined that the Bluetooth headset is worn by the user, the Bluetooth headset sends Bluetooth signals at preset time intervals and / or preset transmission durations.

[0139] In this embodiment, when it is determined that the Bluetooth headset is worn by the user, the Bluetooth headset sends Bluetooth signals at the above preset time intervals and the above preset transmission durations. Since products of this type, such as headsets, have relatively small speakers, it is easier to listen to the sound of the speaker when worn. If not worn, even if there is noise, it will not affect the user's experience. At this time, more consideration can be given to the connection performance, such as the speed of reconnection. Optionally, the Bluetooth headset can determine whether the user is wearing the Bluetooth headset by its distance from the user, or can also use the infrared detection device of the Bluetooth headset to determine whether the user is wearing the headset by determining whether the infrared detection device detects the user's skin. Or, the Bluetooth headset can also detect the external temperature through its temperature detection device and determine whether it is worn by the user based on the detected temperature. It can be understood that the Bluetooth headset only sends Bluetooth signals at preset time intervals and / or preset transmission durations when it is determined that the user is wearing the Bluetooth headset, which can balance noise and connection performance and improve the user experience.

[0140] In this embodiment, when it is determined that the user is wearing the Bluetooth headset, the Bluetooth headset sending Bluetooth signals at preset time intervals and / or preset transmission durations can make the time interval of the Bluetooth device when sending Bluetooth signals larger or the transmission duration smaller, etc., so that the frequency of the radiation noise generated by the Bluetooth device is very low or the duration is very short, thereby reducing the interference of electromagnetic radiation on sensitive components such as the speaker and microphone of the Bluetooth headset, reducing the user's perception of the radiation noise, and improving the user experience.

[0141] Embodiment Sixteen

[0142] In the scenario where the above Bluetooth device sends Bluetooth signals at preset time intervals and / or preset transmission durations, as Figure 3 shown, in one embodiment, the above method further includes:

[0143] S301, determining a target radiation noise mode based on the current scenario where the Bluetooth device is located.

[0144] In this embodiment, the Bluetooth device determines the target radiation noise mode based on the current scenario it is in. The current scenario can be determined according to the external noise, and different scenarios correspond to different noise ranges. For example, in a sports scenario, when the external noise is large, the requirement for the noise generated by the Bluetooth device when sending Bluetooth signals is low, so the corresponding preset time interval can be smaller and the preset transmission duration can be longer; while in the sleep and study scenarios, the external noise is small, and the requirement for the noise generated by the Bluetooth device when sending Bluetooth signals is high, so the corresponding preset time interval can be larger and the preset transmission duration can be shorter. Optionally, the current scenario can also be determined according to day and night. During the day, the external noise is large, and the requirement for the noise generated by the Bluetooth device when sending Bluetooth signals is low, so the corresponding preset time interval can be smaller and the preset transmission duration can be longer. At night, the external noise is small, and the requirement for the noise generated by the Bluetooth device when sending Bluetooth signals is high, so the corresponding preset time interval can be larger and the preset transmission duration can be shorter. Optionally, the target radiation noise mode can be a high-noise mode or a low-noise mode.

[0145] S302. Determine the preset time interval and / or preset transmission duration corresponding to the target radiation noise mode according to the corresponding relationship among the radiation noise mode, time interval, and transmission duration.

[0146] In this embodiment, the Bluetooth device determines the preset time interval and / or preset transmission duration corresponding to the above-mentioned target radiation noise mode according to the corresponding relationship among the radiation noise mode, time interval, and transmission duration. Optionally, different radiation noise modes correspond to different time intervals and / or transmission durations. For example, the preset time interval corresponding to the high-noise mode is smaller, and the preset transmission duration is larger, while in the low-noise mode, the corresponding preset time interval is larger and the preset transmission duration is smaller.

[0147] In this embodiment, the Bluetooth device determines the target radiation noise mode based on the current scenario it is in, and then determines the preset time interval and / or preset transmission duration corresponding to the target radiation noise mode according to the corresponding relationship among the radiation noise mode, time interval, and transmission duration, which can ensure that different preset time intervals and / or preset transmission durations correspond to different target radiation noise modes, and the usage scenario is flexible. In this case, the frequency of the Bluetooth device when sending Bluetooth signals is lower and / or the transmission time length is smaller, etc., so that the frequency of the radiation noise generated by the Bluetooth device can be very low, thereby reducing the interference effect of electromagnetic radiation on sensitive components such as speakers and microphones, that is, reducing the interference on sensitive components such as speakers and microphones when the Bluetooth device sends a Bluetooth connection request signal.

[0148] Embodiment Seventeen

[0149] In a scenario where the above Bluetooth device sends Bluetooth signals at preset time intervals and for a preset transmission duration, the Bluetooth signal is a Bluetooth broadcast signal (e.g., a Bluetooth signal transmitted in the inquiry state or the paging state). In one embodiment, as Figure 4 shown, the above method further includes:

[0150] S401, obtaining the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices based on the Bluetooth broadcast signal.

[0151] In this embodiment, the Bluetooth device sends Bluetooth broadcast signals at preset time intervals and for a preset transmission duration, and obtains the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices based on the Bluetooth broadcast signal. Optionally, the Bluetooth device can be a Bluetooth headset. Correspondingly, other Bluetooth devices can be headsets, TVs, mobile phones, etc. Exemplarily, taking the Bluetooth device as a Bluetooth headset and other Bluetooth devices as mobile phones, the Bluetooth headset sends Bluetooth broadcast signals at the above transmission power, the mobile phone receives the Bluetooth broadcast signal, and feeds back a Bluetooth connection request signal to the Bluetooth headset according to the Bluetooth broadcast signal, and the Bluetooth headset obtains the signal strength of the fed-back Bluetooth connection request signal.

[0152] S402, adjusting the preset transmission power within a preset transmission power range according to the signal strength to obtain a target transmission power.

[0153] Among them, within the preset transmission power range, the radiation noise generated when the Bluetooth device sends Bluetooth signals can meet the first condition, that is, the radiation noise generated when the Bluetooth device sends Bluetooth signals using the transmission power within the preset transmission power range can meet the first condition.

[0154] In this embodiment, the Bluetooth device adjusts the above preset transmission power within a preset transmission power range according to the signal strength of the Bluetooth signal fed back by other Bluetooth devices obtained, to obtain a target transmission power. Optionally, if the signal strength of the Bluetooth signal fed back by other Bluetooth devices obtained by the Bluetooth device is weak, the Bluetooth device can increase the above preset transmission power within the preset transmission power range to obtain a target transmission power. If the signal strength of the Bluetooth signal fed back by other Bluetooth devices obtained by the Bluetooth device is strong, the Bluetooth device can weaken the above preset transmission power within the preset transmission power range to obtain a target transmission power, which is not limited in the embodiments of the present application. In this embodiment, since the transmission power of the Bluetooth device is adjusted within the preset transmission power range, the radiation noise generated when the Bluetooth device sends Bluetooth signals at this transmission power meets the first condition. At this time, adjusting the transmission power can meet the requirements of reducing power consumption or improving Bluetooth connection performance.

[0155] S403, sending a Bluetooth connection response signal using the target transmission power, so that the radiation noise generated when sending the Bluetooth connection response signal meets the first condition.

[0156] In this embodiment, the Bluetooth device sends a Bluetooth connection response signal using the obtained target transmission power, so that the radiation noise generated by transmitting the Bluetooth connection response signal meets the above first condition. The first condition may be that the power consumed by the Bluetooth device when transmitting the Bluetooth connection response signal is small, the fluctuation of the current is small, and the generated radiation noise is weak. That is, when the Bluetooth device sends a Bluetooth connection response signal to other Bluetooth devices using the determined target transmission power, the power consumed is small, the fluctuation of the current is small, and the generated radiation noise is weak.

[0157] In this embodiment, the Bluetooth device can adjust its preset transmission power within a preset transmission power range according to the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices based on the Bluetooth broadcast signal it transmits, and obtain the target transmission power. Since the Bluetooth device can dynamically adjust the transmission power according to the signal strength of other Bluetooth devices, it can meet the requirements for the Bluetooth connection quality during the Bluetooth connection process. Moreover, using this target transmission power to send a Bluetooth connection response signal to other Bluetooth devices makes the radiation noise generated by transmitting the Bluetooth connection response signal meet the first condition, which can make the power consumed by the Bluetooth device when transmitting the Bluetooth connection response signal small, so that the current fluctuation generated by the Bluetooth device is weak, and further reduce the interference of electromagnetic radiation on sensitive components such as speakers and microphones.

[0158] Embodiment 18

[0159] In the scenario where the above Bluetooth device adjusts its preset transmission power within a preset transmission power range according to the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices to obtain the target transmission power, in one embodiment, the above S402 includes: if the signal strength is less than a preset signal strength threshold, then within the preset transmission power range, gradually increase the transmission power of the Bluetooth device according to a preset first adjustment amount until the preset first adjustment end condition is met, and obtain the target transmission power.

[0160] The first adjustment end condition includes that the signal strength is not less than the signal strength threshold, or the transmission power of the Bluetooth device is not less than the maximum power within the transmission power range.

[0161] In this embodiment, if the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices is less than the preset signal strength threshold, the Bluetooth device gradually increases the transmission power of the Bluetooth device within the above preset transmission power range according to the preset first adjustment amount until the preset first adjustment end condition is met, and the above target transmission power is obtained. Among them, the first adjustment end condition includes that the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices is not less than the above preset signal strength threshold, or the transmission power of the Bluetooth device is not less than the maximum power within the above preset transmission power range. Exemplarily, taking the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices as 3 dbm, the preset signal strength threshold as 8 dbm, the preset transmission power range as 2 dbm to 10 dbm, and the first adjustment amount as 2 dbm as an example, the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices, which is 5 dbm, is less than the preset signal strength threshold of 8 dbm. Then, the Bluetooth device can gradually increase the transmission power of the Bluetooth device within the transmission power range of 2 dbm to 10 dbm according to the adjustment amount of 2 dbm until the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices is not less than 8 dbm, or the transmission power of the Bluetooth device is not less than the maximum power within the above transmission power range, that is, not less than 10 dbm. It should be noted that if the transmission power of the Bluetooth device is gradually increased according to the adjustment amount of 2 dbm and the obtained transmission power is 11 dbm, the Bluetooth device will use the maximum power of 10 dbm within the transmission power range as the target transmission power and discard the obtained 11 dbm.

[0162] In this embodiment, if the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices is less than the preset signal strength threshold, the Bluetooth device gradually increases the transmission power of the Bluetooth device within the preset transmission power range according to the preset first adjustment amount until the preset first adjustment end condition is met, and the target transmission power is obtained. Since the transmission power of the Bluetooth device is increased when the signal strength of the received Bluetooth connection request signal is weak, the Bluetooth connection can be quickly established, avoiding the situation of poor connection quality due to low transmission power. Moreover, the Bluetooth device uses the target transmission power to send the Bluetooth connection response signal, so that the radiation noise generated by sending the Bluetooth connection response signal meets the first condition, which can make the power consumed by the Bluetooth device when sending the Bluetooth connection response signal smaller, thereby making the current fluctuation generated by the Bluetooth device weaker, and further reducing the interference of electromagnetic radiation on sensitive components such as speakers and microphones.

[0163] Embodiment XIX

[0164] In the scenario where the above Bluetooth device adjusts its preset transmission power within the preset transmission power range according to the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices to obtain the target transmission power, in another embodiment, the above S402 includes: if the signal strength is greater than or equal to the preset signal strength threshold, then within the preset transmission power range, gradually reduce the transmission power of the Bluetooth device by a preset second adjustment amount until the preset second adjustment end condition is met, and obtain the target transmission power;

[0165] Among them, the second adjustment end condition includes that the signal strength is less than the signal strength threshold, or the transmission power of the Bluetooth device is less than the minimum power within the transmission power range.

[0166] In this embodiment, if the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices is greater than or equal to the preset signal strength threshold, the Bluetooth device gradually reduces the transmission power of the Bluetooth device by a preset second adjustment amount within the above preset transmission power range until the preset second adjustment end condition is met, and obtain the above target transmission power. Among them, the second adjustment end condition includes that the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices is less than the above preset signal strength threshold, or the transmission power of the Bluetooth device is less than the minimum power within the above preset transmission power range. Exemplarily, taking the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices as 9dbm, the preset signal strength threshold as 5dbm, the preset transmission power range as 2dbm to 10dbm, and the first adjustment amount as 2dbm as an example for illustration, the signal strength 9dbm of the Bluetooth connection request signal fed back by other Bluetooth devices is greater than the preset signal strength threshold 8dbm, then the Bluetooth device can gradually reduce the transmission power of the Bluetooth device by an adjustment amount of 2dbm within the transmission power range of 2dbm to 10dbm until the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices is less than 5dbm, or the transmission power of the Bluetooth device is less than the minimum power within the above transmission power range, that is, less than 2dbm.

[0167] In this embodiment, if the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices is greater than or equal to a preset signal strength threshold, the Bluetooth device gradually reduces the transmission power of the Bluetooth device within a preset transmission power range according to a preset second adjustment amount until a preset second adjustment end condition is met, obtaining a target transmission power. In the case where the signal strength of the received Bluetooth connection request signal is strong, the transmission power of the Bluetooth device can be appropriately reduced to reduce power consumption. Moreover, the Bluetooth device sends a Bluetooth connection response signal using the target transmission power, so that the radiation noise generated by sending the Bluetooth connection response signal meets the first condition. In this way, the power consumed by the Bluetooth device when sending the Bluetooth connection response signal can be made smaller, thereby making the current fluctuation generated by the Bluetooth device weaker, and further reducing the interference caused by electromagnetic radiation to sensitive components such as speakers and microphones.

[0168] Embodiment Twenty

[0169] In one embodiment, as Figure 5 shown, a Bluetooth connection method is provided. Taking the Bluetooth device in Figure 1 as an example, the method includes the following steps:

[0170] S501, during part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at every preset time interval i and / or preset transmission duration t;

[0171] Wherein, the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise perceptible by the human ear; and / or, the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0172] The implementation principle and beneficial effects of this embodiment can be referred to the above-mentioned Embodiment 1 and Embodiment 6, and will not be elaborated here.

[0173] Embodiment Twenty - One

[0174] In the scenario where the above Bluetooth device sends Bluetooth signals at every preset time interval i and preset transmission duration t, in another embodiment, the preset time interval is greater than or equal to a preset time interval threshold, and the preset time interval threshold includes any one of 50 ms, 40 ms, 33 ms, and 20 ms; and / or,

[0175] The preset transmission duration includes any one of: 2.5ms, 3.75ms, 5ms, 6.25ms, 7.5ms, 8.75ms, 10ms, 11.25ms, 12.5ms, 13.75ms, 15ms, 16.25ms, 17.5ms, 18.75ms, 20ms, 21.25ms, 22.5ms, 23.75ms, 25ms, 26.25ms, 27.5ms, 28.75ms, 30ms, 31.25ms, 32.5ms, 33.75ms, 35ms, 36.25ms, 37.5ms, 38.75ms, 40ms, 41.25ms, 42.5ms, 43.75ms, 45ms, 46.75ms, 48ms, 49.25ms.

[0176] For the implementation principle and beneficial effects of the Bluetooth connection method provided in the embodiments of the present application, reference may be made to the aforementioned Embodiment Seven, and details are not described herein again.

[0177] In one embodiment, as Figure 7 shown, a headset is provided, including: a processor, a transceiver, a speaker, and a battery respectively connected to the processor;

[0178] The processor is configured to control the transceiver to send Bluetooth signals at preset time intervals i and / or preset transmission durations t every other time during part or all of the process of establishing a Bluetooth connection, so that the radiation noise generated by the transceiver sending Bluetooth signals satisfies the first condition.

[0179] For the implementation principle and beneficial effects of the headset provided in the embodiments of the present application, please refer to the description of the aforementioned Embodiment One, and details are not described herein again.

[0180] In one embodiment, please continue to refer to Figure 7 , and a headset is further provided, including: a processor, a transceiver, a speaker, and a battery respectively connected to the processor;

[0181] The processor is configured to, during part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at preset time intervals i and / or preset transmission durations t every other time;

[0182] Wherein, the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise that can be perceived by the human ear; and / or, the preset transmission duration is N times of 1.25ms, where N is an integer greater than 1 and less than i / 1.25.

[0183] For the implementation principle and beneficial effects of the headset provided in the embodiments of the present application, please refer to the description of the aforementioned Embodiment Six, and details are not described herein again.

[0184] In one embodiment, a Bluetooth headset is further provided, including: a processor, a Bluetooth transceiver, a speaker, and a battery, which are respectively connected to the processor;

[0185] The processor is configured to control the transmission time interval of the Bluetooth transceiver to be adjusted to a preset time interval i, and / or control the transmission duration of the Bluetooth transceiver to be adjusted to a preset transmission duration t; the Bluetooth transceiver is configured to transmit Bluetooth signals during the Bluetooth paging process at every preset time interval i and / or preset transmission duration t, so that the radiation noise generated by the speaker satisfies the first condition.

[0186] For the implementation principle and beneficial effects of the Bluetooth headset provided in the embodiments of the present application, reference may be made to the description of the foregoing Embodiment 1, which will not be elaborated herein.

[0187] In one embodiment, a Bluetooth headset is further provided, including: a processor, a Bluetooth transceiver, a speaker, and a battery, which are respectively connected to the processor;

[0188] The processor is configured to control the transmission time interval of the Bluetooth transceiver to be adjusted to a preset time interval i, and control the transmission duration of the Bluetooth transceiver to be adjusted to a preset transmission duration t;

[0189] The Bluetooth transceiver is configured to transmit Bluetooth signals during the Bluetooth paging process at every preset time interval i and preset transmission duration t;

[0190] Wherein, the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise perceptible by the human ear; and / or, the preset transmission duration t is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0191] For the implementation principle and beneficial effects of the Bluetooth headset provided in the embodiments of the present application, reference may be made to the description of the foregoing Embodiment 6, which will not be elaborated herein.

[0192] It should be understood that although Figures 2 - 6 the steps in the flowchart of Figures 2 - 6 are shown in sequence according to the indication of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise clearly stated in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover,

[0193] In one embodiment, as Figure 8 shown, a Bluetooth connection device is provided, including: a processing module 10 and a transmitting module 11 (which may include a transceiver module with transceiver functions), wherein:

[0194] The processing module 10 is configured to control the transmitting module 11 to send Bluetooth signals at preset time intervals i and / or preset transmission durations t during part or all of the process of establishing a Bluetooth connection, so that the radiation noise generated by sending the Bluetooth signals satisfies a first condition.

[0195] Optionally, during part or all of the process of establishing a Bluetooth connection, it includes: during the Bluetooth paging process; and / or, during the Bluetooth inquiry process.

[0196] Optionally, during part or all of the process of establishing a Bluetooth connection, it includes: during part or all of the process of re - establishing a Bluetooth connection after an abnormal interruption of the Bluetooth connection; or, during the Bluetooth paging process of re - establishing a Bluetooth connection after an abnormal interruption of the Bluetooth connection.

[0197] Optionally, the preset time interval is different from the Bluetooth transmission time interval of the Bluetooth device after establishing a Bluetooth connection, and / or, the preset transmission duration is different from the Bluetooth transmission duration of the Bluetooth device after establishing a Bluetooth connection.

[0198] Optionally, the preset time interval is greater than the Bluetooth transmission time interval of the Bluetooth device after establishing a Bluetooth connection, and / or, the preset transmission duration is less than the Bluetooth transmission duration of the Bluetooth device after establishing a Bluetooth connection.

[0199] Optionally, the first condition characterizes the degree to which the radiation noise is perceived by the user.

[0200] Optionally, the Bluetooth connection performance of the Bluetooth device satisfies specific conditions.

[0201] Optionally, the preset time interval i is greater than or equal to I, where I = 1 second / Z; and / or,

[0202] The preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0203] Optionally, the preset time interval is greater than or equal to a preset time interval threshold, and the preset time interval threshold includes any one of 50 ms, 40 ms, 33 ms, and 20 ms; and / or,

[0204] The preset transmission duration includes any one of: 2.5ms, 3.75ms, 5ms, 6.25ms, 7.5ms, 8.75ms, 10ms, 11.25ms, 12.5ms, 13.75ms, 15ms, 16.25ms, 17.5ms, 18.75ms, 20ms, 21.25ms, 22.5ms, 23.75ms, 25ms, 26.25ms, 27.5ms, 28.75ms, 30ms, 31.25ms, 32.5ms, 33.75ms, 35ms, 36.25ms, 37.5ms, 38.75ms, 40ms, 41.25ms, 42.5ms, 43.75ms, 45ms, 46.75ms, 48ms, 49.25ms.

[0205] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0206] Based on the above embodiment, optionally, making the radiation noise generated by sending the Bluetooth signal satisfy the first condition includes:

[0207] The frequency of the radiation noise is less than the frequency of the reference radiation noise, and the frequency of the reference radiation noise is the frequency of the radiation noise generated by sending the Bluetooth signal at the Bluetooth transmission time interval in the Bluetooth connection state during part or all of the process of establishing the Bluetooth connection; and / or,

[0208] The duration of the radiation noise is less than the duration of the reference radiation noise, and the duration of the reference radiation noise is the duration of the radiation noise generated by sending the Bluetooth signal at the Bluetooth transmission duration in the Bluetooth connection state during part or all of the process of establishing the Bluetooth connection.

[0209] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0210] Based on the above embodiment, optionally, making the radiation noise generated by sending the Bluetooth signal satisfy the first condition includes:

[0211] Making the frequency of the radiation noise generated by sending the Bluetooth signal satisfy the second condition, where the second condition is used to characterize the degree to which the frequency of the radiation noise is perceived by the user; and / or,

[0212] Making the duration of the radiation noise generated each time the Bluetooth signal is sent satisfy the third condition, where the third condition is used to characterize the degree to which the duration of the radiation noise generated each time the Bluetooth signal is sent is perceived by the user.

[0213] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0214] Based on the above embodiment, optionally, making the radiation noise generated by sending a Bluetooth signal satisfy the first condition includes:

[0215] Making the frequency of the radiation noise generated by sending a Bluetooth signal less than or equal to the reference value Z of the minimum frequency of the radiation noise that can be perceived by the human ear; and / or,

[0216] Making the duration of the radiation noise generated by each sending of a Bluetooth signal less than or equal to the reference value T of the shortest duration required for a person to recognize a sound.

[0217] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0218] Based on the above embodiment, optionally, making the radiation noise generated by sending a Bluetooth signal satisfy the first condition includes:

[0219] When the frequency of the radiation noise generated by sending a Bluetooth signal is not perceived by a specific user or the specific user perceives it within a first preset range; and / or,

[0220] When the duration of the radiation noise generated by sending a Bluetooth signal is not perceived by a specific user or the specific user perceives it within a second preset range.

[0221] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0222] Optionally, the preset time interval and the preset transmission duration are determined by a specified Bluetooth device, and the specified Bluetooth device includes a Bluetooth device or other Bluetooth devices with the same performance as the Bluetooth device.

[0223] In the above embodiment of determining the preset time interval and the preset transmission duration, taking the preset time interval and the preset transmission duration being determined by the above Bluetooth device as an example, optionally, as Figure 9 shown, the above device further includes: a first determination module 12, where:

[0224] The first determination module 12 is configured to adjust the time interval for transmitting Bluetooth signals to obtain a current time interval, and / or adjust the transmission duration of the Bluetooth signals to obtain a current transmission duration; when, during part or all of the process of establishing a Bluetooth connection for a specified Bluetooth device, the radiation noise generated when sending Bluetooth signals at the current time interval and / or the current transmission duration satisfies a first condition, or when the radiation noise generated when sending Bluetooth signals at the current time interval and / or the current transmission duration satisfies the first condition and the Bluetooth connection performance of the specified Bluetooth device satisfies a specific condition, then the current transmission duration can be used as a preset transmission duration, and the current time interval can be used as a preset time interval.

[0225] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be elaborated here.

[0226] Based on the above embodiment, optionally, when the radiation noise generated when sending Bluetooth signals at the current time interval and / or the current transmission duration satisfies the first condition, it includes:

[0227] When the frequency of the radiation noise generated when sending Bluetooth signals at the current time interval satisfies a second condition, and / or the duration of the radiation noise generated each time when sending Bluetooth signals at the current transmission duration satisfies a third condition;

[0228] Wherein, the second condition is used to characterize the degree to which the frequency of the radiation noise is perceived by the user, and the third condition is used to characterize the degree to which the duration of the radiation noise generated each time when sending Bluetooth signals is perceived by the user.

[0229] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be elaborated here.

[0230] Based on the above embodiment, optionally, when the radiation noise generated when sending Bluetooth signals at the current time interval and / or the current transmission duration satisfies the first condition, it includes:

[0231] When the frequency of the radiation noise generated when sending Bluetooth signals at the current time interval is less than or equal to the reference value Z of the minimum frequency of the radiation noise that can be perceived by the human ear, and / or the duration of the radiation noise generated each time when sending Bluetooth signals at the current transmission duration is less than or equal to the reference value T of the shortest duration required for a person to recognize a sound.

[0232] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be elaborated here.

[0233] Based on the above embodiment, optionally, when the radiation noise generated when sending Bluetooth signals at the current time interval and / or the current transmission duration satisfies the first condition, it includes:

[0234] When the frequency of the radiation noise generated by transmitting the Bluetooth signal at the current time interval is not perceived by a specific user or the specific user perceives it within a first preset range; and / or,

[0235] When the duration of the radiation noise generated by transmitting the Bluetooth signal at the current transmission duration is not perceived by a specific user or the specific user perceives it within a second preset range.

[0236] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0237] Based on the above embodiment, optionally, making the radiation noise generated by transmitting the Bluetooth signal satisfy the first condition includes:

[0238] Making the radiation noise generated by transmitting the Bluetooth signal less than or equal to the reference value of the absolute auditory threshold.

[0239] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0240] Based on the above embodiment, the Bluetooth device is a Bluetooth headset. Optionally, Figure 10 , the above transmitting module 11 includes a transmitting unit 111 (which may include a transceiver unit with transceiver functions), where:

[0241] The transmitting unit 111 is configured to, when it is determined that the Bluetooth headset is worn by a user, the Bluetooth headset transmits a Bluetooth signal at preset time intervals and / or preset transmission durations.

[0242] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0243] Based on the above embodiment, optionally, please continue to refer to Figure 10 , the above device further includes: a second determination module 13 and a third determination module 14, where:

[0244] The second determination module 13 is configured to determine a target radiation noise pattern based on the current scenario where the Bluetooth device is located.

[0245] The third determination module 14 is configured to determine a preset time interval and a preset transmission duration corresponding to the target radiation noise pattern according to the correspondence between the radiation noise pattern, the time interval, and the transmission duration.

[0246] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0247] Based on the above embodiments, the Bluetooth signal is a Bluetooth broadcast signal. Optionally, please continue to refer to Figure 10 , the above device further includes: a first acquisition module 15, a second acquisition module 16, and a transmission module 17, where:

[0248] The first acquisition module 15 is configured to acquire the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices according to the Bluetooth broadcast signal;

[0249] The second acquisition module 16 is configured to adjust the preset transmission power within the preset transmission power range according to the signal strength to obtain a target transmission power;

[0250] The transmission module 17 is configured to send a Bluetooth connection response signal using the target transmission power, so that the radiation noise generated by sending the Bluetooth connection response signal satisfies the first condition.

[0251] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0252] Based on the above embodiments, optionally, please continue to refer to Figure 10 , the above second acquisition module 16 includes a first acquisition unit 161, where:

[0253] The first acquisition unit 161 is configured to, if the signal strength is less than the preset signal strength threshold, gradually increase the transmission power of the Bluetooth device within the preset transmission power range according to the preset first adjustment amount until the preset first adjustment end condition is met, so as to obtain the target transmission power;

[0254] Wherein, the first adjustment end condition includes that the signal strength is not less than the signal strength threshold, or the transmission power of the Bluetooth device is not less than the maximum power within the transmission power range.

[0255] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0256] Based on the above embodiments, optionally, please continue to refer to Figure 10 , the above second acquisition module 16 includes a second acquisition unit 162, where:

[0257] The second acquisition unit 162 is configured to, if the signal strength is greater than or equal to the preset signal strength threshold, gradually decrease the transmission power of the Bluetooth device within the transmission power range according to the preset second adjustment amount until the preset second adjustment end condition is met, so as to obtain the target transmission power;

[0258] Among them, the second adjustment end condition includes that the signal strength is less than the signal strength threshold, or the transmission power of the Bluetooth device is less than the minimum power within the transmission power range.

[0259] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0260] For the specific limitations of the Bluetooth connection device, reference can be made to the limitations on the Bluetooth connection method in the above text, which will not be elaborated here. Each module in the above Bluetooth connection device can be implemented in whole or in part by software, hardware, and their combination. The above modules can be embedded in the processor of the computer device in hardware form or independent of it, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to the above modules.

[0261] In one embodiment, as Figure 11 shown, a Bluetooth connection device is provided, including: a processing module 20 and a transmitting module 21 (which may include a transceiver module with transceiver functions), where:

[0262] The processing module 20 is used to control the transmitting module 21 to send Bluetooth signals at preset time intervals i and / or preset transmission durations t during part or all of the process of establishing a Bluetooth connection; where the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and Z is the reference value of the minimum frequency of the radiation noise that can be perceived by the human ear; and / or, the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0263] Optionally, the preset time interval is greater than or equal to a preset time interval threshold, and the preset time interval threshold includes any one of 50 ms, 40 ms, 33 ms, and 20 ms; and / or,

[0264] The preset transmission duration includes: any one of 2.5 ms, 3.75 ms, 5 ms, 6.25 ms, 7.5 ms, 8.75 ms, 10 ms, 11.25 ms, 12.5 ms, 13.75 ms, 15 ms, 16.25 ms, 17.5 ms, 18.75 ms, 20 ms, 21.25 ms, 22.5 ms, 23.75 ms, 25 ms, 26.25 ms, 27.5 ms, 28.75 ms, 30 ms, 31.25 ms, 32.5 ms, 33.75 ms, 35 ms, 36.25 ms, 37.5 ms, 38.75 ms, 40 ms, 41.25 ms, 42.5 ms, 43.75 ms, 45 ms, 46.75 ms, 48 ms, 49.25 ms.

[0265] The Bluetooth connection device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0266] For the specific limitations on the Bluetooth connection device, reference can be made to the limitations on the Bluetooth connection method in the foregoing text, which will not be elaborated here. Each module in the above Bluetooth connection device can be implemented in whole or in part by software, hardware, and their combination. The above modules can be embedded in the processor of the computer device in hardware form or independent of it, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to the above modules.

[0267] In one embodiment, the specific implementation manner of determining the preset time interval and the preset transmission duration by the specified Bluetooth device is mainly described. The embodiment of the present application also provides a Bluetooth parameter determination method, including the following steps: adjusting the time interval for transmitting the Bluetooth signal to obtain the current time interval, and / or adjusting the transmission duration of the Bluetooth signal to obtain the current transmission duration; during part or all of the process of establishing a Bluetooth connection, when the radiation noise generated by transmitting the Bluetooth signal at the current time interval and / or the current transmission duration meets the first condition, or when the radiation noise generated by transmitting the Bluetooth signal at the current time interval and / or the current transmission duration meets the first condition and the Bluetooth connection performance of the Bluetooth device meets a specific condition, determining the current transmission duration as the preset transmission duration and determining the current time interval as the preset time interval.

[0268] It should be noted that the preset time interval and the preset transmission duration can be determined by this Bluetooth device or by a specified Bluetooth device. The specified Bluetooth device can be the above Bluetooth device or a Bluetooth device with the same performance as the above Bluetooth device, such as an engineering prototype, a trial production prototype, etc. After determining the preset transmission power through testing, it is set in the above Bluetooth device during mass production. Of course, it can also be determined according to the user's needs after the Bluetooth device leaves the factory, and the principle is the same. The present application does not limit this.

[0269] The implementation principle and beneficial effects of the Bluetooth parameter determination method provided in the embodiment of the present application can be referred to the descriptions of Embodiments 8 to 11 of the foregoing Bluetooth connection method, which will not be elaborated here.

[0270] In one embodiment, the situation where the radiation noise generated by transmitting the Bluetooth signal at the current time interval and / or the current transmission duration meets the first condition includes:

[0271] When the frequency of the radiation noise generated by transmitting the Bluetooth signal at the current time interval is not perceived by a specific user or the perception of the specific user is within a first preset range; and / or,

[0272] When the duration of the radiation noise generated by transmitting the Bluetooth signal with the current transmission duration is not perceived by a specific user or the perception of the specific user is within a second preset range; and / or,

[0273] When the frequency of the radiation noise generated by transmitting the Bluetooth signal with the current time interval is less than or equal to the reference value Z of the minimum frequency of the radiation noise that can be perceived by the human ear; and / or,

[0274] When the duration of the radiation noise generated by transmitting the Bluetooth signal with the current transmission duration is less than or equal to the reference value T of the shortest duration required for a person to recognize a sound.

[0275] For the Bluetooth parameter determination method provided in the embodiments of the present application, the implementation principle and beneficial effects can be referred to the embodiments of the foregoing Bluetooth connection method, which will not be elaborated here.

[0276] In one embodiment, a Bluetooth device is provided, and its internal structure diagram can be as Figure 12 shown. The Bluetooth device includes a processor, a memory, a communication interface, a display screen, and an input device connected through a system bus. Among them, the processor of the Bluetooth device is used to provide computing and control capabilities. The memory of the Bluetooth device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a carrier network, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it realizes a Bluetooth connection method. The display screen of the Bluetooth device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the Bluetooth device can be a touch layer covered on the display screen, or a button, a trackball, or a touchpad provided on the shell of the Bluetooth device, or an external keyboard, a touchpad, or a mouse, etc.

[0277] Those skilled in the art can understand that Figure 12 the structure shown in

[0278] is only a block diagram of some structures related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0279] During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at preset time intervals i and preset transmission durations t, such that the radiation noise generated by sending the Bluetooth signals satisfies a first condition.

[0280] For the Bluetooth device provided in the above embodiment, its implementation principle and technical effects are similar to those of the above method embodiment, and will not be elaborated here.

[0281] In one embodiment, a Bluetooth device is provided, including a memory, a processor, a speaker, and a transceiver. A computer program is stored in the memory. When the processor and the transceiver are configured to execute the computer program, the following steps are implemented:

[0282] During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at preset time intervals i and preset transmission durations t;

[0283] Wherein, the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise perceptible by the human ear; and / or, the preset transmission duration is N times 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0284] For the Bluetooth device provided in the above embodiment, its implementation principle and technical effects are similar to those of the above method embodiment, and will not be elaborated here.

[0285] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0286] During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at preset time intervals i and preset transmission durations t, such that the radiation noise generated by sending the Bluetooth signals satisfies a first condition.

[0287] For the computer-readable storage medium provided in the above embodiment, its implementation principle and technical effects are similar to those of the above method embodiment, and will not be elaborated here.

[0288] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0289] During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at preset time intervals i and preset transmission durations t;

[0290] Among them, the preset transmission time interval i is greater than or equal to I, where I = 1 second / Z, and Z is the reference value of the minimum frequency of the radiation noise perceptible to the human ear; and / or, the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

[0291] For the computer-readable storage medium provided by the above embodiment, its implementation principle and technical effect are similar to those of the above method embodiment, and will not be elaborated here.

[0292] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above method embodiments. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0293] The above embodiments and the technical features of each embodiment can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered as the scope described in this specification.

[0294] The above-described embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A Bluetooth connection method, characterized in that, The method includes: During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at every preset time interval i and / or preset transmission duration t to reduce the radiation noise generated by transmitting the Bluetooth signals.

2. The method according to claim 1, wherein During part or all of the process of establishing a Bluetooth connection includes: During the Bluetooth paging process; and / or, during the Bluetooth inquiry process.

3. The method according to claim 1, wherein During part or all of the process of establishing a Bluetooth connection includes: During part or all of the process of re - establishing a Bluetooth connection after an abnormal interruption of the Bluetooth connection; or, During the Bluetooth paging process of re - establishing a Bluetooth connection after an abnormal interruption of the Bluetooth connection.

4. The method according to claim 1, wherein The preset time interval is different from the Bluetooth transmission time interval of the Bluetooth device after establishing a Bluetooth connection, and / or, the preset transmission duration is different from the Bluetooth transmission duration of the Bluetooth device after establishing a Bluetooth connection.

5. The method according to claim 1, characterized in that, The preset time interval is greater than the Bluetooth transmission time interval of the Bluetooth device after establishing a Bluetooth connection, and / or, the preset transmission duration is less than the Bluetooth transmission duration of the Bluetooth device after establishing a Bluetooth connection.

6. The method according to claim 1, characterized in that The preset time interval i is greater than or equal to I, where I = 1 second / Z; and / or, The preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.

25.

7. The method according to claim 1, characterized in that, The preset time interval is greater than or equal to a preset time interval threshold, and the preset time interval threshold includes any one of 50 ms, 40 ms, 33 ms, and 20 ms; and / or, The preset transmission duration includes: any one of 2.5 ms, 3.75 ms, 5 ms, 6.25 ms, 7.5 ms, 8.75 ms, 10 ms, 11.25 ms, 12.5 ms, 13.75 ms, 15 ms, 16.25 ms, 17.5 ms, 18.75 ms, 20 ms, 21.25 ms, 22.5 ms, 23.75 ms, 25 ms, 26.25 ms, 27.5 ms, 28.75 ms, 30 ms, 31.25 ms, 32.5 ms, 33.75 ms, 35 ms, 36.25 ms, 37.5 ms, 38.75 ms, 40 ms, 41.25 ms, 42.5 ms, 43.75 ms, 45 ms, 46.75 ms, 48 ms, 49.25 ms.

8. The method according to claim 1, characterized in that, The radiation noise is caused by current fluctuations.

9. The method according to claim 1, characterized in that, The Bluetooth device is a Bluetooth headset; the Bluetooth device sends Bluetooth signals at every preset time interval and / or preset transmission duration, including: When it is determined that the Bluetooth headset is worn by the user, the Bluetooth headset sends Bluetooth signals at every preset time interval and / or preset transmission duration.

10. The method according to claim 1, characterized in that, The method further includes: Determining a target radiation noise pattern based on the current scenario where the Bluetooth device is located; Determining the preset time interval and preset transmission duration corresponding to the target radiation noise pattern according to the corresponding relationship between the radiation noise pattern, time interval, and transmission duration.

11. The method according to claim 1, wherein The Bluetooth signal includes a Bluetooth broadcast signal, and the method further includes: Obtain the signal strength of the Bluetooth connection request signal fed back by other Bluetooth devices according to the Bluetooth broadcast signal; Adjust the preset transmission power within a preset transmission power range according to the signal strength to obtain a target transmission power; Send a scan response signal using the target transmission power to reduce the radiation noise generated by transmitting the Bluetooth signal.

12. The method according to claim 11, wherein The adjusting the preset transmission power within a preset transmission power range according to the signal strength to obtain a target transmission power includes: If the signal strength is less than a preset signal strength threshold, within the preset transmission power range, gradually increase the transmission power of the Bluetooth device by a preset first adjustment amount until a preset first adjustment end condition is met, and obtain the target transmission power; Wherein, the first adjustment end condition includes that the signal strength is not less than the signal strength threshold, or the transmission power of the Bluetooth device is not less than the maximum power within the transmission power range; Or, the adjusting the preset transmission power within a preset transmission power range according to the signal strength to obtain a target transmission power includes: If the signal strength is greater than or equal to a preset signal strength threshold, within the transmission power range, gradually decrease the transmission power of the Bluetooth device by a preset second adjustment amount until a preset second adjustment end condition is met, and obtain the target transmission power; Wherein, the second adjustment end condition includes that the signal strength is less than the signal strength threshold, or the transmission power of the Bluetooth device is less than the minimum power within the transmission power range.

13. A Bluetooth connection method, characterized in that, The method includes: During part or all of the process of establishing a Bluetooth connection, the Bluetooth device sends Bluetooth signals at every preset time interval i and / or preset transmission duration t; Wherein, the preset time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise perceptible to the human ear; and / or, the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.

25.

14. The method according to claim 13, wherein, The preset time interval is greater than or equal to a preset time interval threshold, and the preset time interval threshold includes any one of 50 ms, 40 ms, 33 ms, and 20 ms; and / or, The preset transmission duration includes any one of: 2.5 ms, 3.75 ms, 5 ms, 6.25 ms, 7.5 ms, 8.75 ms, 10 ms, 11.25 ms, 12.5 ms, 13.75 ms, 15 ms, 16.25 ms, 17.5 ms, 18.75 ms, 20 ms, 21.25 ms, 22.5 ms, 23.75 ms, 25 ms, 26.25 ms, 27.5 ms, 28.75 ms, 30 ms, 31.25 ms, 32.5 ms, 33.75 ms, 35 ms, 36.25 ms, 37.5 ms, 38.75 ms, 40 ms, 41.25 ms, 42.5 ms, 43.75 ms, 45 ms, 46.75 ms, 48 ms, 49.25 ms.

15. An earphone, characterized in that, The earphone includes: a processor, a transceiver, a speaker, and a battery, where the transceiver, the speaker, and the battery are respectively connected to the processor; The processor and the transceiver are configured to execute the Bluetooth connection method according to any one of claims 1-14.

16. A Bluetooth connection device, characterized in that, The device includes: a processing module and a transmitting module; The processing module is configured to control the transmitting module to send Bluetooth signals at preset time intervals i and / or a preset transmission duration t during part or all of the process of establishing a Bluetooth connection, so as to reduce the radiation noise generated by transmitting the Bluetooth signals.

17. A Bluetooth connection device, characterized in that, The device includes: a processing module and a transmitting module; The processing module is configured to control the transmitting module to send Bluetooth signals at preset time intervals i and / or a preset transmission duration t during part or all of the process of establishing a Bluetooth connection; wherein, the preset time interval i is greater than or equal to I, where I = 1 second / Z, and Z is a reference value of the minimum frequency of the radiation noise perceptible to the human ear; and / or, the preset transmission duration is N times of 1.25 ms, where N is an integer greater than 1 and less than i / 1.25.

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