Prompt circuit and earphone cabin

Abstract

The utility model provides a prompt circuit and an earphone cabin, and the prompt circuit comprises a main control circuit, a signal generation circuit, a first sensor, a second sensor, a buzzer, and a gyroscope. The main control circuit is respectively connected with the signal generation circuit, the first sensor, the second sensor, the buzzer and the gyroscope; when the earphone cabin is in a standing state, starting an alarm clock function; under the condition that the user exists in the first range, the main control circuit starts a timer in the alarm clock function, and the timer starts timing; and when the timing of the timer exceeds the first threshold value and the second sensor detects that the time is within the first threshold value, and the user never leaves the first range, the buzzer gives out an alarm sound to prompt the user to leave. According to the technical scheme provided by the invention, whether the user is in the learning state for a long time can be judged, and if the user learns for a long time, the user can be reminded to have a rest through the buzzer, so that the eyes of the user can be protected, and a certain effect of preventing myopia of the user is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of wireless Bluetooth headsets, and in particular to a prompt circuit and an earphone compartment. Background Art

[0002] With the continuous development of social and cultural knowledge, the learning tasks and pressure of young people have greatly increased. They need to spend more and more time using electronic devices to watch teaching videos, do homework online, etc. to complete their learning tasks, which leads to serious deterioration of young people's eyesight and myopia is becoming more and more common.

[0003] In order to solve the problem of myopia prevention and control among adolescents, this application provides a new solution. Utility Model Content

[0004] In view of this, the present application provides a prompt circuit and an earphone compartment for solving the problem of myopia prevention and control among teenagers.

[0005] In order to achieve the above-mentioned objectives, in a first aspect, an embodiment of the present application provides a prompt circuit, which includes: a main control circuit, a signal generating circuit, a first sensor, a second sensor, a buzzer and a gyroscope; the main control circuit is respectively connected to the signal generating circuit, the first sensor, the second sensor, the buzzer and the gyroscope.

[0006] The signal generating circuit is used to generate a control signal and transmit the control signal to the main control circuit; the main control circuit is used to control the operation of the first sensor, the second sensor, the buzzer and the gyroscope according to the control signal; the gyroscope is used to periodically detect the state of the earphone compartment; the state of the earphone compartment at least includes a static state; the main control circuit is also used to start the alarm function when the earphone compartment is in a static state.

[0007] The first sensor is used to detect the status of the cover of the earphone compartment; the status of the cover of the earphone compartment includes an open state and a closed state; the second sensor is used to detect whether there is a user within the first range; the main control circuit is also used to start the timer in the alarm function when there is a user within the first range, and the timer starts timing; when the timer exceeds the first threshold and the second sensor detects that the user has never left the first range within the first threshold, the buzzer is used to sound an alarm to prompt the user to leave.

[0008] In a second aspect, an embodiment of the present application further provides an earphone compartment, which includes: a compartment body, an earphone cover, a wireless Bluetooth headset, and a prompt circuit of any one of the above-mentioned first aspects.

[0009] The embodiments of the present application provide a prompt circuit and an earphone compartment, wherein, on the one hand, the prompt circuit can use a gyroscope to determine the state of the earphone compartment, and the alarm function will only be started when the earphone compartment is on the desktop, thereby saving power; on the other hand, a second sensor can be used to determine whether the user has been in a learning state for a long time. If the user has been studying for too long, a buzzer can be used to remind the user to take a rest, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing and automatically stop timing, thereby realizing a fully automatic alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the structure of the prompt circuit in Embodiment 1 provided in the embodiments of the present application;

[0011] Figure 2 A schematic diagram of a packaging of a Bluetooth main control chip provided in an embodiment of the present application;

[0012] Figure 3 A schematic diagram of the specific structure of the prompt circuit in Embodiment 1 provided in the embodiments of the present application;

[0013] Figure 4 A schematic diagram of the structure of the prompt circuit in the second embodiment provided in the embodiment of the present application;

[0014] Figure 5 A schematic diagram of the specific structure of the prompt circuit in the second embodiment provided in the embodiment of the present application;

[0015] Figure 6 A schematic diagram of the structure of the prompt circuit in Embodiment 3 provided in the embodiments of the present application;

[0016] Figure 7 A schematic diagram of the specific structure of the charger module provided in the embodiment of the present application;

[0017] Figure 8 A schematic diagram of the specific structure of the prompt circuit in Embodiment 3 provided in the embodiments of the present application;

[0018] Fig. 9 A schematic diagram of the structure of the prompt circuit in the fourth embodiment provided in the embodiments of the present application;

[0019] Fig.10 A schematic diagram of the specific structure of the prompt circuit in the fourth embodiment provided in the embodiment of the present application;

[0020] Fig.11 A schematic diagram of the structure of the prompt circuit in the fifth embodiment provided in the embodiment of the present application;

[0021] Fig.12A schematic diagram of the specific structure of the prompt circuit in Embodiment 5 provided in the embodiments of the present application;

[0022] Fig.13 A schematic diagram of the structure of the prompt circuit in Embodiment 6 provided in the embodiments of the present application;

[0023] Fig.14 A schematic diagram of the specific structure of the prompt circuit in Embodiment 6 provided in the embodiments of the present application;

[0024] Fig.15 A schematic diagram of the structure of the prompt circuit in Embodiment 7 provided in the embodiments of the present application;

[0025] Fig.16 A schematic diagram of the specific structure of the prompt circuit in Embodiment 7 provided in the embodiments of the present application;

[0026] Fig.17 A schematic diagram of the structure of the prompt circuit in Embodiment 8 provided in the embodiments of the present application;

[0027] Fig.18 A schematic diagram of the specific structure of the prompt circuit in Embodiment 8 provided in the embodiments of the present application;

[0028] Fig.19 A schematic diagram of the structure of the prompt circuit in Embodiment 9 provided in the embodiments of the present application;

[0029] Fig. 20 This is a schematic diagram of the specific structure of the prompt circuit in Example 9 provided in the embodiments of the present application.

[0030] Description of reference numerals:

[0031] 101-main control circuit; 101A-Bluetooth main control chip; 102-signal generating circuit; 105-buzzer; 102A-high frequency crystal oscillator; 102B-low frequency crystal oscillator; 103-first sensor; 103A-Hall sensor; 104-second sensor; 104A-distance sensor; 106-gyroscope; 108B-battery; 107-first indication module; 107A-level conversion module; 108-charger module; 108A-charger chip; 108C-second indication module; 108D-wired charging circuit; 108E-wireless charging circuit; 109-display screen; 109A-capacitive touch screen; 110-headphone access; 111-antenna module; 112-memory; 112A-storage chip; 113-disinfection module; 113A-boost circuit; 114-reset module. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] Embodiment 1:

[0034] Figure 1 The schematic diagram of the structure of the prompt circuit in the first embodiment provided in the present application is as follows: Figure 1 As shown, the prompt circuit includes: a main control circuit 101, a signal generating circuit 102, a first sensor 103, a second sensor 104, a buzzer 105 and a gyroscope 106.

[0035] Specifically, the main control circuit 101 is connected to the signal generating circuit 102 , the first sensor 103 , the second sensor 104 , the buzzer 105 and the gyroscope 106 respectively.

[0036] The signal generating circuit 102 is used to generate a control signal and transmit the control signal to the main control circuit 101; the main control circuit 101 is used to control the first sensor 103, the second sensor 104, the buzzer 105 and the gyroscope 106 to work according to the control signal.

[0037] The gyroscope 106 is used to periodically detect the state of the earphone compartment; the state of the earphone compartment at least includes a static state; the main control circuit 101 is also used to start the alarm function when the earphone compartment is located on the desktop.

[0038] Among them, the static state can be that the earphone compartment is located on the desktop, or it can be that the earphone compartment is located at the bedside, etc. The embodiment of the present application does not specifically limit this. The following exemplary description is taken as an example that the static state is that the earphone compartment is located on the desktop; the state of the earphone compartment can also include a second state, and the second state is used to indicate the state of being carried by the user; periodicity can refer to detection once every 1 minute, or detection once every 5 minutes, or detection once every 40 minutes, etc. The embodiment of the present application does not specifically limit this. The following exemplary description is taken as an example that the detection period is 40 minutes; the detection period can be set by the manufacturer before the product leaves the factory, or it can be set by the user after the product leaves the factory. The embodiment of the present application does not specifically limit this. The following exemplary description is taken as an example that the detection period is set by the manufacturer.

[0039] The gyroscope 106 is used to periodically detect the state of the earphone compartment. The specific process may be: the gyroscope 106 detects the change in gravity acceleration of the x-axis, y-axis and z-axis every 40 minutes. If the change in gravity acceleration exceeds the second threshold, it is considered that the earphone compartment is carried by the user; if the change in gravity acceleration is less than or equal to the second threshold, it is considered that the earphone compartment is located on the desktop. The second threshold may be set by the user or by the manufacturer. The embodiment of the present application does not specifically limit this. In order to reduce damage to the circuit due to improper user operation, the second threshold is set by the manufacturer as an example for illustrative explanation. The second threshold may be 0.3 meters per second (m / s 2 ), or 1m / s 2 Etc., the embodiments of the present application do not specifically limit this.

[0040] The first sensor 103 is used to detect the state of the lid of the earphone compartment; the state of the lid of the earphone compartment includes an open state and a closed state. The specific process of the first sensor 103 detecting the state of the lid of the earphone compartment can be: if the first sensor 103 generates an electromotive force inside, it means that the lid of the earphone compartment is in a closed state; if the first sensor 103 does not generate an electromotive force inside, it means that the earphone cover of the earphone compartment is in an open state.

[0041] The second sensor 104 is used to detect whether there is a user within the first range; the main control circuit 101 is also used to start the timer in the alarm function when there is a user within the first range, and the timer starts timing.

[0042] Among them, the first range refers to the normal distance between the user and the table, which can be 1 meter (m), 0.5m, 0.2m, etc., and the embodiment of the present application does not specifically limit this; the setting of the first range can be set by the user or by the manufacturer, and the embodiment of the present application does not specifically limit this. In order to reduce the damage to the circuit caused by improper user operation, the following example takes the setting of the first range being set by the manufacturer and the setting value being 1 meter as an example for exemplary explanation.

[0043] It should be understood that if the user does not use the earphone compartment for a long time, the earphone compartment will enter a dormant state, and the second sensor 104 will also enter a dormant state. The second sensor 104 needs to be activated first, and then the second sensor 104 detects again. The second sensor 104 can be activated manually according to different situations. When the second sensor 104 is located on the earphone cover of the earphone compartment, the user activates the second sensor 104 by opening the earphone cover of the earphone compartment and closing the earphone cover of the earphone compartment; when the second sensor 104 is located on the compartment body of the earphone compartment, the user can activate the second sensor 104 by opening the earphone cover of the earphone compartment or closing the earphone cover of the earphone compartment.

[0044] In order to reduce the occurrence of false activation or unsuccessful activation of the second sensor 104 and achieve full automation, as another optional implementation, the second sensor 104 can also be automatically activated periodically, such as once every 1 minute, once every 2 minutes, etc. The embodiment of the present application does not specifically limit the periodic activation time.

[0045] Furthermore, in order to save power, as another optional implementation, the periodic automatic activation of the second sensor 104 can be combined with the current time. If the current time is daytime, the periodic automatic activation of the second sensor 104 is automatically started; if the current time is night, the periodic automatic activation of the second sensor 104 is automatically canceled.

[0046] The embodiment of the present application does not specifically limit the position of the second sensor 104. To improve user experience and reduce operations, the following explanation will be given by taking the example that the second sensor 104 is located on the body of the earphone compartment and the user can activate the second sensor 104 by opening the earphone cover of the earphone compartment.

[0047] When the earphone compartment is on the desktop and the second sensor 104 is activated, the second sensor 104 starts to detect whether there is a user within the first range. The specific process of the second sensor 104 starting to detect whether there is a user within the first range can be: the second sensor 104 emits a light signal outward. If there is a user within 1 meter (i.e., the first range), reflected light will be generated, and the second sensor 104 can receive the reflected light signal. If there is no user within 1 meter, no reflected light will be generated, and the second sensor 104 cannot receive the reflected light signal. That is, the second sensor 104 emits a light signal outward. If the second sensor 104 can receive the reflected light signal, it means that there is a user within 1 meter; if the second sensor 104 cannot receive the reflected light signal, it means that there is no user within 1 meter. The second sensor 104 will transmit the detection result to the main control circuit 101 through the signal line. When the main control circuit 101 receives that there is a user within the first range, it starts the timer in the alarm function, and the timer starts timing.

[0048] When the timer exceeds the first threshold and the second sensor 104 detects that the user has never left the first range within the first threshold, the buzzer 105 is used to sound an alarm to prompt the user to leave.

[0049] Among them, the first threshold can be 40 minutes, 30 minutes, 60 minutes, etc., and the embodiment of the present application does not specifically limit this; the setting of the first threshold can be set by the manufacturer or by the user, and the embodiment of the present application does not specifically limit this. In order to reduce the damage to the circuit caused by improper user operation, the following example is taken as an example in which the first threshold is set by the manufacturer and the set duration is 30 minutes.

[0050] It is understandable that after the manufacturer sets the first threshold, if the user feels that the time is not appropriate, the user can reset it by himself; in order to reduce the occurrence of the situation that the user forgets to set the value of the first threshold each time use, once the first threshold is set, it will become the default value, and there is no need to reset it for subsequent uses until the user sets it for the second time, and the first threshold will use the second setting as the default value.

[0051] The following is a detailed introduction to each module in the prompt circuit.

[0052] First, the main control circuit 101 is introduced. The main control circuit 101 can be a specific circuit or a chip, which is not particularly limited in the present embodiment. In order to reduce the volume of the prompt circuit and facilitate the user to carry it, the main control circuit 101 including a chip is taken as an example for exemplary description.

[0053] When the main control circuit 101 includes a chip, the Bluetooth main control chip of Zhongke Bluexun can be selected, or the Bluetooth main control chip of other manufacturers can be selected. The present application embodiment does not specifically limit this. The Bluetooth chip of Zhongke Bluexun is used as an example for exemplary description. The packaging diagram of the Bluetooth main control chip of Zhongke Bluexun can be referred to. Figure 2 .

[0054] Figure 2 A schematic diagram of a packaging of a Bluetooth main control chip provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, the Bluetooth main control chip 101A may include an antenna pin ANT, a first crystal oscillator input terminal HOSCI, a second crystal oscillator input terminal LOSCI, a first control terminal GPIO1, a second control terminal GPIO2, a fourth interrupt interface WIO0, a program burning storage interface USBDP / DM, a DC voltage input interface DCIN, a battery interface BAT, a fifth interrupt interface WIO1, and a fourth first type communication bus interface I 2 C4, asynchronous communication interface UART, fourth control terminal GPIO4, analog-to-digital conversion interface ADC_IN, second type communication bus interface SPI, third interrupt interface INT3, third first type communication bus interface I 2 C3, the second interrupt interface INT2, the second first type communication bus interface I 2C2, the second third-type communication bus interface SD0 QSPI, the second voltage interface VCC2, the first interrupt interface INT1, the first first-type bus interface I 2 C1, a first third type communication bus interface QSPI, a third control terminal GPIO3 and a first voltage interface VCC1.

[0055] Those skilled in the art should know that, as an integrated chip, the Bluetooth main control chip 101A includes several circuits inside. The manufacturer burns the written program into the Bluetooth main control chip 101A through the program burning storage interface USB DP / DM, so that several circuits inside the Bluetooth main control chip 101A start to work, and then the Bluetooth main control chip 101A can communicate with the external circuit and control the external circuit to work according to the set program to achieve the desired effect.

[0056] The first type of communication bus interface is I 2 The Bluetooth main control chip 101A has a plurality of first type communication bus interfaces, which are respectively referred to as the first type communication bus interface I and II for ease of description. 2 C1, the second first type communication bus interface I 2 C2, the third first type communication bus interface I 2 C3 and the fourth first type communication bus interface I 2 C4. It is understandable that, when necessary, the Bluetooth main control chip 101A may further include more first-class communication bus interfaces.

[0057] The second type of communication bus interface refers to an SPI communication bus type interface. It is understandable that, when necessary, the Bluetooth main control chip 101A may further include more second type of communication bus interfaces.

[0058] Among them, the third type of communication bus interface refers to the interface of the QSPI communication bus type, and the Bluetooth main control chip 101A has multiple third type of communication bus interfaces, which are respectively referred to as the first third type of communication bus interface QSPI and the second third type of communication bus interface SDO QSPI for ease of description. It can be understood that, when necessary, the Bluetooth main control chip 101A can also include more third type of communication bus interfaces.

[0059] Those skilled in the art know that the QSPI communication bus type interface is an extension of the SPI communication bus type interface and can implement the same functions as the SPI bus.

[0060] Among them, the interface types of the first interrupt interface INT1, the second interrupt interface INT2 and the third interrupt interface INT3 are all INT type interrupt interfaces. For the convenience of description and distinction, the first interrupt interface INT1, the second interrupt interface INT2 and the third interrupt interface INT3 are used for description. It can be understood that, when necessary, the Bluetooth main control chip 101A can also include more INT type interrupt interfaces.

[0061] The fifth interrupt interface WIO1 can execute an interrupt program, and its interrupt priority is higher than the interrupt priorities of other interrupt interfaces. It can be understood that, when necessary, the Bluetooth main control chip 101A can also include more types of interrupt interfaces.

[0062] Next, the signal generating circuit 102 is introduced. The signal generating circuit 102 includes a high-frequency crystal oscillator 102A and a low-frequency crystal oscillator 102B. The high-frequency crystal oscillator 102A is used to generate a high-frequency signal and transmit the high-frequency signal to the main control circuit 101; the low-frequency crystal oscillator 102B is used to generate a low-frequency signal and transmit the low-frequency signal to the main control circuit 101; the main control circuit 101 is used to perform frequency division processing on the high-frequency signal and the low-frequency signal to generate different types of control signals.

[0063] Next, the first sensor 103 and the second sensor 104 are introduced.

[0064] Among them, the first sensor 103 may include a Hall sensor 103A, and the Hall sensor 103A can detect the state of the cover of the earphone compartment. Specifically, the Hall sensor 103A uses the Hall effect to convert the magnetic field signal into an electrical signal output. When the earphone cover of the earphone compartment is in a closed state, the Hall element inside the Hall sensor 103A will generate a potential difference and output a current or voltage signal to the Bluetooth main control chip 101A (i.e., the main control circuit 101); when the earphone cover of the earphone compartment is in an open state, the Hall element inside the Hall sensor 103A will not generate a potential difference, and there will be no current or voltage signal output to the Bluetooth main control chip 101A (i.e., the main control circuit 101).

[0065] The first sensor 103 may also be other types of sensors, such as an infrared distance sensor. In the case where the first sensor 103 is an infrared distance sensor, the specific process of the first sensor 103 detecting the state of the lid of the earphone compartment may be: the infrared distance sensor emits a light signal outwardly, and if the lid of the earphone compartment is in a closed state, the infrared distance sensor can receive the light signal reflected back by the lid of the earphone compartment; if the lid of the earphone compartment is in an open state, there is no reflected light signal, that is, the infrared distance sensor cannot receive the reflected light signal. That is, the infrared distance sensor emits light outwardly, and if the infrared distance sensor can receive the reflected light, it means that the earphone cover of the earphone compartment is in a closed state, and if the infrared distance sensor cannot receive the reflected light, it means that the earphone cover of the earphone compartment is in an open state.

[0066] The embodiment of the present application does not specifically limit the type of the first sensor 103. In order to improve the sensitivity of the prompt circuit in detecting the state of the earphone cover of the earphone compartment, an exemplary description will be given below using the example where the first sensor 103 is a Hall sensor 103A.

[0067] Among them, the second sensor 104 includes a distance sensor 104A. The distance sensor 104A can be an optical distance sensor, an infrared distance sensor, an ultrasonic distance sensor, etc. The embodiment of the present application does not specifically limit this. In order to save costs, the distance sensor 104A is an infrared distance sensor as an example for exemplary description.

[0068] When the distance sensor 104A is an infrared distance sensor, the specific process of the second sensor 104 starting to detect whether there is a user within the first range can be: the infrared distance sensor emits a light signal outward, and if the infrared distance sensor can receive the reflected light signal, it means that there is a user within 1 meter; if the infrared distance sensor cannot receive the reflected light signal, it means that there is no user within 1 meter.

[0069] Next, the buzzer 105 is introduced. The buzzer 105 can be an active buzzer, a passive buzzer, a PIEZO buzzer, etc., and the application embodiment itself does not make any special limitation on this.

[0070] Finally, the gyroscope 106 is introduced. The gyroscope 106 can be ADIS16465 launched by ADI in the United States, MPU-6050 produced by ST Semiconductor (Switzerland), L3GD20H produced by L3 in Switzerland, etc., which are not particularly limited in the embodiments of the present application.

[0071] In the case where the main control circuit 101 includes a Bluetooth main control chip 101A, the signal generating circuit 102 includes a high-frequency crystal oscillator 102A and a low-frequency crystal oscillator 102B, the first sensor 103 includes a Hall sensor 103A, the second sensor 104 includes a distance sensor 104A, a buzzer 105 and a gyroscope 106, the specific connection structure of the prompt circuit can be referred to Figure 3 .

[0072] Figure 3 The specific structural diagram of the prompt circuit in the first embodiment provided in the embodiment of the present application is as follows: Figure 3 As shown,

[0073] The signal generating circuit 102 is connected to the main control circuit 101, including: the output end of the high frequency crystal oscillator 102A is connected to the first crystal oscillator input end HOSCI of the Bluetooth main control chip 101A; the output end of the low frequency crystal oscillator 102B is connected to the second crystal oscillator input end LOSCI of the Bluetooth main control chip 101A.

[0074] The first crystal oscillator input terminal HOSCI of the Bluetooth main control chip 101A is used to receive the high-frequency signal generated by the high-frequency crystal oscillator 102A; the second crystal oscillator input terminal LOSCI of the Bluetooth main control chip 101A is used to receive the low-frequency signal generated by the low-frequency crystal oscillator 102B. The Bluetooth main control chip 101A is used to divide the high-frequency signal and the low-frequency signal to generate different types of control signals.

[0075] Among them, different types of control signals include a first control signal, a second control signal, a third control signal and a fourth control signal. It is understandable that, depending on the circuit, different types of control signals may include more or less, and are used to control different circuits to work, and the embodiments of the present application do not specifically limit this.

[0076] The first sensor 103 is connected to the main control circuit 101, including: the input end of the Hall sensor 103A is connected to the first control end GPIO1 of the Bluetooth main control chip 101A. The second sensor 104 is connected to the main control circuit 101, including: the input end of the distance sensor 104A is connected to the third first type communication bus interface I of the Bluetooth main control chip 101A. 2 C3; the output end of the distance sensor 104A is connected to the third interrupt interface INT3 of the Bluetooth main control chip 101A.

[0077] The first control terminal GPIO1 of the Bluetooth main control chip 101A is used to output a first control signal, and the first control signal is used to control the Hall sensor 103A to detect the state of the cover of the earphone compartment; the third first type communication bus interface I 2C3 is used to transmit data and output a second control signal, and the second control signal is used to control the distance sensor 104A to detect whether there is a user within the first range; the third interrupt interface INT3 of the Bluetooth main control chip 101A is used to receive the interrupt request transmitted by the distance sensor 104A, and then interrupt. The Bluetooth main control chip 101A is also used to start the timer in the alarm function when there is a user within the first range, and the timer starts timing.

[0078] The buzzer 105 is connected to the main control circuit 101, including: the input end of the buzzer 105 is connected to the second control end GPIO2 of the Bluetooth main control chip 101A. The gyroscope 106 is connected to the main control circuit 101, including: the input end of the gyroscope 106 is connected to the second first type communication bus interface I of the Bluetooth main control chip 101A 2 C2; the output end of the gyroscope 106 is connected to the second interrupt interface INT2 of the Bluetooth main control chip 101A.

[0079] The second control terminal GPIO2 of the Bluetooth main control chip 101A is used to output a third control signal. When the timer exceeds the first threshold and the distance sensor 104A detects that it is within the first threshold and the user has never left the first range, the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0080] The second first type communication bus interface I of the Bluetooth main control chip 101A 2 C2 is used to transmit data and output the fourth control signal, and the fourth control signal is used to control the gyroscope 106 to periodically detect the status of the earphone compartment; the second interrupt interface INT2 of the Bluetooth main control chip 101A is used to receive the interrupt request transmitted by the gyroscope 106 and then interrupt.

[0081] Combine the following Figure 3 , illustrating the working principle of the prompt circuit provided in Example 1.

[0082] The Bluetooth main control chip 101A performs frequency division processing on the high-frequency signal and the low-frequency signal to generate a first control signal, a second control signal, a third control signal and a fourth control signal. The fourth control signal controls the gyroscope 106 to detect the state of the earphone compartment every 40 minutes. If the earphone compartment is detected to be on the desktop, the Bluetooth main control chip 101A activates the alarm function; if the earphone compartment is detected to be on the user, the Bluetooth main control chip 101A does not activate the alarm function.

[0083] When the earphone compartment is on the desktop, the user activates the distance sensor 104A by opening the earphone cover of the earphone compartment. The first control signal controls the Hall sensor 103A to detect the status of the cover of the earphone compartment. The second control signal controls the distance sensor 104A to detect whether there is a user within 1 meter. If there is a user within 1 meter, the Bluetooth main control chip 101A starts the timer in the alarm function, and the timer starts the first timing.

[0084] When the timer counts for more than 30 minutes and the distance sensor 104A detects the presence of a user within 30 minutes (ie, the user has not left within these 30 minutes), the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0085] If the user does not leave, the buzzer 105 will remind the user to leave at a second interval. If the user does not want to leave, the user can choose to turn off the alarm function, or choose to be reminded later, that is, the user is supported to manually cancel the timing and reminder at any time, which is convenient for the user to carry. Among them, the user can choose to turn off the alarm function by lifting the earphone compartment, and the user can choose to be reminded later by lifting the earphone compartment and shaking it.

[0086] If the user is away for more than 1 minute (i.e., the distance sensor 104A detects that there is no user within 1 minute), the first timing of the timer ends. The user returns after resting for the third time, and the timer starts the second timing. If the user's rest time exceeds the third time, the earphone compartment enters the sleep state. After the earphone compartment enters the sleep state, the distance sensor 104A (i.e., the second sensor 104) also enters the sleep state. When the user returns again, the distance sensor 104A needs to be activated and the timer starts the second timing. If the user's rest time is less than 10 minutes, the timer continues the first timing, and the buzzer 105 continues to remind the user to leave every second time.

[0087] The second time can be 10 seconds, 30 seconds, or 1 minute, etc., and the present embodiment does not specifically limit this. The second time can be set by the manufacturer or the user, and the present embodiment does not specifically limit this.

[0088] In order to protect the eyes, the third time is at least 10 minutes. The third time can be set by the manufacturer or the user, and the embodiment of the present application does not make any special limitation on this.

[0089] The prompt circuit provided in the first embodiment of the present application, on the one hand, can use a gyroscope to determine the state of the earphone compartment. The alarm function will only be activated when the earphone compartment is on the desktop, which can save power; on the second hand, using the second sensor, it can be determined whether the user is in a learning state for a long time. If the user studies for too long, the buzzer can be used to remind the user to take a break, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing, and can also automatically stop timing, so that a fully automatic alarm can be realized.

[0090] Embodiment 2:

[0091] In order to remind the user of the status of the earphone cover of the earphone compartment, the second embodiment of the present application provides a prompt circuit, which can be referred to Figure 4 .

[0092] Figure 4 This is a schematic diagram of the structure of the prompt circuit in the second embodiment provided in the embodiment of the present application, Figure 4 like Figure 4 As shown, the prompt circuit includes: a signal generating circuit 102 connected to the main control circuit 101 , a first sensor 103 , a second sensor 104 , a buzzer 105 , a gyroscope 106 and a first indication module 107 .

[0093] Figure 4 Compared to Figure 1 For example, a first indication module connected to the main control circuit 101 is added, and the remaining modules are connected to Figure 1 Here, only the first indication module 107 is described in detail. For the detailed description of the signal generating circuit 102, the first sensor 103, the second sensor 104, the buzzer 105 and the gyroscope 106, reference can be made to the relevant description in the first embodiment, which will not be repeated here.

[0094] The first indication module 107 is used to indicate the status of the lid of the earphone compartment; when the lid of the earphone compartment is in an open state, the first indication module 107 lights up; when the lid of the earphone compartment is in a closed state, the first indication module 107 goes out.

[0095] Among them, the first indication module 107 includes a level conversion module 107A and a first light-emitting diode D1; the first end of the level conversion module 107A is connected to the anode of the first light-emitting diode D1, and the cathode of the first light-emitting diode D1 is grounded; the level conversion module 107A also has a second end, which is the input end of the first indication module 107 and is used to connect to the main control circuit 101.

[0096] The level conversion module 107A is used to increase the voltage output by the main control circuit 101 to the first indication module 107, and output the increased voltage to the first light emitting diode D1; for ease of description, the increased voltage is expressed as a first raised voltage.

[0097] In the case where the main control circuit 101 includes a Bluetooth main control chip 101A, the signal generating circuit 102 includes a high-frequency crystal oscillator 102A and a low-frequency crystal oscillator 102B, the first sensor 103 includes a Hall sensor 103A, the second sensor 104 includes a distance sensor 104A, a buzzer 105, a gyroscope 106, and the first indication module 107 includes a level conversion module 107A and a first light-emitting diode D1, the specific connection structure of the prompt circuit can be referred to Figure 5 .

[0098] Figure 5 The specific structural diagram of the prompt circuit in the second embodiment provided in the embodiment of the present application is as follows: Figure 5 As shown, Figure 5 Compared to Figure 3 The difference lies in the connection relationship between the first indication module 107 and the Bluetooth main control chip 101A, and the connection relationship of other circuits remains unchanged.

[0099] Here, only the connection relationship between the first indication module 107 and the Bluetooth main control chip 101A is described. For the connection relationship between the high-frequency crystal oscillator 102A, the low-frequency crystal oscillator 102B, the Hall sensor 103A, the distance sensor 104A, the buzzer 105 and the gyroscope 106 and the Bluetooth main control chip 101A, please refer to the first embodiment. Figure 3 The relevant description will not be repeated here.

[0100] The first indication module 107 is connected to the main control circuit 101 , and includes: a second end of the level conversion module 107A is connected to the second type communication bus interface SPI of the Bluetooth main control chip 101A.

[0101] The second type communication bus interface SPI of the Bluetooth main control chip 101A is used to transmit data, and when the earphone cover of the earphone compartment is in an open state, outputs voltage to the level conversion module 107A, and when the earphone cover of the earphone compartment is in a closed state, stops outputting voltage to the level conversion module 107A.

[0102] When the earphone cover of the earphone compartment is in an open state, the level conversion module 107A receives the voltage output by the Bluetooth main control chip 101A, converts the voltage output by the Bluetooth main control chip 101A into a first boosted voltage, and then outputs the first boosted voltage to the first light-emitting diode D1. After receiving the first boosted voltage, the first light-emitting diode D1 is turned on and emits light. After seeing the light, the user can choose to close the earphone cover of the earphone compartment to save power and increase the service life of the earphone compartment.

[0103] When the earphone cover of the earphone compartment is in a closed state, the level conversion module 107A cannot receive the voltage output by the Bluetooth main control chip 101A, and the first light-emitting diode D1 is cut off and stops emitting light.

[0104] Combine the following Figure 5 , illustrating the working principle of the prompt circuit provided in Example 2.

[0105] The Bluetooth main control chip 101A performs frequency division processing on the high-frequency signal and the low-frequency signal to generate a first control signal, a second control signal, a third control signal and a fourth control signal. The fourth control signal controls the gyroscope 106 to detect the state of the earphone compartment every 40 minutes. If the earphone compartment is detected to be on the desktop, the Bluetooth main control chip 101A activates the alarm function; if the earphone compartment is detected to be on the user, the Bluetooth main control chip 101A does not activate the alarm function.

[0106] When the earphone compartment is on the desktop, the user activates the distance sensor 104A by opening the earphone cover of the earphone compartment, and the first control signal controls the Hall sensor 103A to detect the state of the earphone compartment cover. When the earphone cover of the earphone compartment is detected to be in the open state, the first light-emitting diode D1 emits light. The second control signal controls the distance sensor 104A to detect whether there is a user within 1 meter. If there is a user within 1 meter, the Bluetooth main control chip 101A starts the timer in the alarm function, and the timer starts the first timing.

[0107] When the timer counts for more than 30 minutes and the distance sensor 104A detects the presence of a user within 30 minutes (ie, the user has not left within these 30 minutes), the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0108] If the user does not leave, the buzzer 105 will remind the user to leave at a second interval. If the user does not want to leave, the user can choose to turn off the alarm function, or choose to be reminded later, that is, the user is supported to manually cancel the timing and reminder at any time, which is convenient for the user to carry.

[0109] If the user is away for more than 1 minute (i.e., the distance sensor 104A detects that there is no user within 1 minute), the first timing of the timer ends. The user returns after resting for the third time, and the timer starts the second timing. If the user's rest time exceeds the third time, the earphone compartment enters the sleep state. After the earphone compartment enters the sleep state, the distance sensor 104A (i.e., the second sensor 104) also enters the sleep state. When the user returns again, the distance sensor 104A needs to be activated and the timer starts the second timing. If the user's rest time is less than 10 minutes, the timer continues the first timing, and the buzzer 105 continues to remind the user to leave every second time.

[0110] The prompt circuit provided in the second embodiment of the present application, on the one hand, can use a gyroscope to determine the state of the earphone compartment. Only when the earphone compartment is on the desktop will the alarm function be activated, which can save power; on the second hand, using the second sensor, it can be determined whether the user is in a learning state for a long time. If the user studies for too long, the buzzer can be used to remind the user to take a rest, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing, and can also automatically stop timing, so that a fully automatic alarm can be realized.

[0111] Embodiment three:

[0112] In order to increase the standby time of the prompt circuit, the third embodiment of the present application provides a prompt circuit that can refer to Figure 6 .

[0113] Figure 6 The schematic diagram of the structure of the prompt circuit in the third embodiment provided in the embodiment of the present application is as follows: Figure 6 As shown, the prompt circuit includes: a signal generating circuit 102 connected to the main control circuit 101 , a first sensor 103 , a second sensor 104 , a buzzer 105 , a gyroscope 106 , a first indication module 107 and a charger module 108 .

[0114] Figure 6 Compared to Figure 4 In terms of the main control circuit 101, a charger module 108 is added, and the remaining modules are connected to the main control circuit 101. Figure 4 Here, only the charger module 108 is introduced in detail. For the detailed description of the signal generating circuit 102, the first sensor 103, the second sensor 104, the buzzer 105, the gyroscope 106 and the first indication module 107, reference can be made to the relevant description in the second embodiment, which will not be repeated here.

[0115] The charger module 108 is used to provide power to the main control circuit 101 and communicate with the main control circuit 101 .

[0116] The specific structure of the charger module 108 can be found in Figure 7 .

[0117] Figure 7 A schematic diagram of the specific structure of the charger module provided in the embodiment of the present application is shown in FIG. Figure 7 As shown, the charger module 108 includes a charger chip 108A, a battery 108B, a second indication module 108C, a wired charging circuit 108D and a wireless charging circuit 108E.

[0118] The charger chip 108A includes a first power interface VIN, a battery interface BAT, a diode interface LED, a second power interface VSYS, an interrupt request interface IRQ, a first communication interface I 2 C. Left / right ear communication port COM L / R, left / right ear drive port DIR L / R, detection port xSENSE, left ear voltage interface VOL and right ear voltage interface VOR.

[0119] Among them, the interface type of the first communication interface is also I 2 C serial communication bus interface. It can be understood that the charger chip 108A can also include more serial communication bus interfaces when necessary.

[0120] The charger chip 108A is used to charge the main control circuit 101 and communicate with the main control circuit 101 .

[0121] The output end of the battery 108B is connected to the battery interface BAT of the charger chip 108A. The battery 108B is a built-in power source for storing electric energy and providing electric energy to the charger chip 108A.

[0122] The second indication module 108C includes a second light emitting diode D2; the anode of the second light emitting diode D2 is the input end of the second indication module 108C, and the cathode of the second light emitting diode D2 is grounded; the anode of the second light emitting diode D2 is connected to the diode interface LED of the charger chip 108A.

[0123] The wired charging circuit 108D includes a USB socket 108D1, a first protection circuit 108D2 and a first switch 108D3; the first end of the USB socket 108D1 is the first end of the wired charging circuit 108D, the input end of the first switch 108D3 is the second end of the wired charging circuit 108D, and the output end of the first switch 108D3 is the third end of the wired charging circuit 108D.

[0124] The second end of the USB socket 108D1 is connected to the input end of the first protection circuit 108D2 , the output end of the first protection circuit 108D2 is connected to the control end of the first switch 108D3 , and the output end of the first switch 108D3 is connected to the first power interface VIN of the charger chip 108A.

[0125] The USB port also has a third terminal; the first protection circuit 108D2 includes a first overvoltage protection circuit and a first overcurrent protection circuit, which are used to protect the wired charging circuit 108D and reduce the occurrence of the wired charging circuit 108D being burned out due to excessive power / current. The wired charging circuit 108D is used to provide a first DC voltage to the charger chip 108A.

[0126] The first switch 108D3 may be a metal-oxide-semiconductor field effect transistor (MOS), a bipolar junction transistor (BJT), or an electronic switch such as a relay, which is not particularly limited in the present embodiment. In order to reduce power consumption, the first switch 108D3 is an MOS tube as an example for exemplary description.

[0127] Among them, MOS tubes can be divided into P-channel metal oxide semiconductor field effect transistors (P-Metal-Oxide-Semiconductor, PMOS) and N-channel metal oxide semiconductor field effect transistors (N-Metal-Oxide-Semiconductor, NMOS). PMOS has the characteristics of low level conduction and high level cutoff, and NMOS has the characteristics of high level conduction and low level cutoff. In order to meet the design requirements of the circuit, the first switch 108D3 is PMOS as an example for illustration.

[0128] Among them, the wireless charging circuit 108E includes a wireless charging interface 108E1, a second protection circuit 108E2 and a second protection switch 108E3; the first end of the wireless charging interface 108E1 is the first end of the wireless charging circuit 108E, the control end of the second switch 108E2 is the second end of the wireless charging circuit 108E, and the output end of the second switch 108E3 is the third end of the wireless charging circuit 108E.

[0129] The second end of the wireless charging interface 108E1 is connected to the input end of the second protection circuit 108E2, the output end of the second protection circuit 108E2 is connected to the input end of the second switch 108E3, and the output end of the second switch 108E3 is connected to the first power interface of the charger chip 108A.

[0130] The second protection circuit 108E2 includes a second overvoltage protection circuit and a second overcurrent protection circuit, which are used to protect the wireless charging circuit 108E and reduce the occurrence of the wireless charging circuit 108E being burned out due to excessive power / current.

[0131] The second switch 108E3 may be a metal-oxide-semiconductor field effect transistor (MOS), a bipolar junction transistor (BJT), or an electronic switch such as a relay, which is not particularly limited in the present embodiment. In order to reduce power consumption, the second switch 108E3 is a MOS tube as an example for exemplary description. In order to meet the design requirements of the circuit, the second switch 108E3 is a PMOS as an example for exemplary description.

[0132] The wireless charging circuit 108E is used to provide a first DC voltage to the charger chip 108A, wherein the first DC voltage may be 5V, and it is understood that within the allowable error range, the voltage value of the first DC voltage may be greater than 5V or less than 5V.

[0133] A first end of the USB socket 108D1 is connected to a control end of the second switch 108E3 , and an input end of the first switch 108D3 is connected to a first end of the wireless charging interface 108E1 .

[0134] It should be noted that the priority of the wired charging circuit 108D providing the first voltage to the charger chip 108A is higher than the priority of the wireless charging circuit 108E providing the first voltage to the charger chip 108A. That is, when the wired charging circuit 108D and the wireless charging circuit 108E exist at the same time, the charger chip 108A receives the first voltage provided by the wired charging circuit 108D.

[0135] When the wired charging circuit 108D provides the first voltage to the charger chip 108A, the battery 108B stores the first voltage and the second light-emitting diode D2 emits light. After the battery 108B stores the full first voltage, the wired charging circuit 108D stops providing the first voltage to the charger chip 108A, the second light-emitting diode D2 stops emitting light, and then the charging cable is unplugged.

[0136] When the wireless charging circuit 108E provides the first voltage to the charger chip 108A, the battery 108B stores the first voltage and the second light-emitting diode D2 emits light. After the battery 108B stores the full first voltage, the wireless charging circuit 108E stops providing the first voltage to the charger chip 108A and the second light-emitting diode D2 stops emitting light.

[0137] Figure 8The specific structural diagram of the prompt circuit in the third embodiment provided in the embodiment of the present application is as follows: Figure 8 As shown, Figure 8 Compared to Figure 5 The difference lies in the connection relationship between the charger module 108 and the Bluetooth main control chip 101A, and the connection relationship of other circuits remains unchanged.

[0138] Here, only the connection relationship between the charger module 108 and the Bluetooth main control chip 101A is described. For the connection relationship between the high-frequency crystal oscillator 102A, the low-frequency crystal oscillator 102B, the Hall sensor 103A, the distance sensor 104A, the buzzer 105, the gyroscope 106 and the first indication module 107 and the Bluetooth main control chip 101A, please refer to the second embodiment. Figure 5 The relevant description will not be repeated here.

[0139] The charger module 108 is connected to the Bluetooth main control chip 101A, and includes:

[0140] The DC voltage input interface DCIN of the Bluetooth main control chip 101A is connected to point a; point a is the connection point where the third end of the wireless charging circuit 108E is connected to the third end of the wired charging circuit 108D. In fact, it is equivalent to the first power interface VIN of the charger chip 108A being connected to the DC voltage input interface DCIN of the Bluetooth main control chip 101A; the first power interface VIN of the charger chip 108A is used to provide the first voltage to the Bluetooth main control chip 101A; the second power interface VSYS of the charger chip 108A is connected to the battery interface BAT of the Bluetooth main control chip 101A, and the second power interface VSYS of the charger chip 108A is used to provide the power of the battery 108B to the Bluetooth main control chip 101A.

[0141] The interrupt request interface IRQ of the charger chip 108A is connected to the fifth interrupt interface WIO1 of the Bluetooth main control chip 101A. When the wired charging circuit 108D is used to provide the first voltage to the charger chip 108A, the charger chip 108A sends an interrupt request to the Bluetooth main control chip 101A, and the Bluetooth main control chip 101A receives the interrupt request.

[0142] The first communication interface I of the charger chip 108A 2 C is connected to the fourth first type communication bus interface I of the Bluetooth main control chip 101A 2 C4, the first communication interface I of the charger chip 108A 2 C is used to communicate with the Bluetooth main control chip 101A.

[0143] The left / right ear communication port COM L / R of the charger chip 108A is connected to the asynchronous communication interface UART of the Bluetooth main control chip 101A, and the Bluetooth main control chip 101A controls the wireless Bluetooth headset to communicate through the charger chip 108A.

[0144] The left / right ear driving port DIR L / R of the charger chip 108A is connected to the fourth control terminal GPIO4 of the Bluetooth main control chip 101A. In the case where the prompt circuit includes the charger module 108, the different types of control signals generated by the Bluetooth main control chip 101A may also include a sixth control signal, which is transmitted to the left / right ear driving port DIR L / R of the charger chip 108A through the fourth control terminal GPIO4 of the Bluetooth main control chip 101A. The charger chip 108A uses the sixth control signal to control the data direction of the left ear earphone and / or the right ear earphone.

[0145] The detection port xSENSE of the charger chip 108A is connected to the analog-to-digital conversion interface ADC_IN of the Bluetooth main control chip 101A; when the detection port xSENSE of the charger chip 108A detects the charging current, the charging current is transmitted to the Bluetooth main control chip 101A. The charging current is an analog quantity, and the Bluetooth main control chip 101A converts the analog charging current into a corresponding digital signal. For example, when the charging current exceeds the first current threshold, the power supply current is converted into a high-level digital signal (such as "1"), and when the charging current is less than or equal to the first threshold, the charging current is converted into a low-level digital signal (such as "0"); similarly, when the charging current exceeds the first current threshold, the power supply current can be converted into a low-level digital signal, and when the charging current is less than or equal to the first threshold, the charging current can be converted into a high-level digital signal. The embodiment of the present application does not specifically limit this. Among them, the first current threshold can be set by the user or by the manufacturer, and the embodiment of the present application does not specifically limit this.

[0146] The third end of the USB socket is connected to the program burning storage interface USB DP / DM of the Bluetooth main control chip 101A; it is used to provide power to the program burning storage interface USB DP / DM of the Bluetooth main control chip 101A, so that the program burning storage interface USB DP / DM of the Bluetooth main control chip 101A can burn and store programs.

[0147] Combine the following Figure 8 , illustrating the working principle of the prompt circuit provided in Example 3.

[0148] When the prompt circuit is out of power, the user can choose to use the wired charging circuit 108D to charge the prompt circuit, or can choose to use the wireless charging circuit 108E to charge the prompt circuit. When the prompt circuit is charging, the second light-emitting diode D2 emits light, and when the prompt circuit is fully charged, the second light-emitting diode D2 stops emitting light (i.e., the light goes out). After the prompt circuit is fully charged, when the prompt circuit is used, the battery 108B provides power to the prompt circuit.

[0149] When the reminder circuit is used, the Bluetooth main control chip 101A divides the high-frequency signal and the low-frequency signal to generate a first control signal, a second control signal, a third control signal and a fourth control signal. The fourth control signal controls the gyroscope 106 to detect the state of the earphone compartment every 40 minutes. If the earphone compartment is detected to be on the desktop, the Bluetooth main control chip 101A starts the alarm function; if the earphone compartment is detected to be on the user, the Bluetooth main control chip 101A does not start the alarm function.

[0150] When the earphone compartment is on the desktop, the user activates the distance sensor 104A by opening the earphone cover of the earphone compartment, and the first control signal controls the Hall sensor 103A to detect the state of the earphone compartment cover. When the earphone cover of the earphone compartment is detected to be in the open state, the first light-emitting diode D1 emits light. The second control signal controls the distance sensor 104A to detect whether there is a user within 1 meter. If there is a user within 1 meter, the Bluetooth main control chip 101A starts the timer in the alarm function, and the timer starts the first timing.

[0151] When the timer counts for more than 30 minutes and the distance sensor 104A detects the presence of a user within 30 minutes (ie, the user has not left within these 30 minutes), the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0152] If the user does not leave, the buzzer 105 will remind the user to leave at a second interval. If the user does not want to leave, the user can choose to turn off the alarm function, or choose to be reminded later, that is, the user is supported to manually cancel the timing and reminder at any time, which is convenient for the user to carry.

[0153] If the user is away for more than 1 minute (i.e., the distance sensor 104A detects that there is no user within 1 minute), the first timing of the timer ends. The user returns after resting for the third time, and the timer starts the second timing. If the user's rest time exceeds the third time, the earphone compartment enters the sleep state. After the earphone compartment enters the sleep state, the distance sensor 104A (i.e., the second sensor 104) also enters the sleep state. When the user returns again, the distance sensor 104A needs to be activated and the timer starts the second timing. If the user's rest time is less than 10 minutes, the timer continues the first timing, and the buzzer 105 continues to remind the user to leave every second time.

[0154] The prompt circuit provided in the third embodiment of the present application, on the one hand, can use the gyroscope to determine the state of the earphone compartment. Only when the earphone compartment is on the desktop will the alarm function be activated, which can save power; on the second hand, using the second sensor, it can be determined whether the user is in a learning state for a long time. If the user studies for too long, the buzzer can be used to remind the user to take a break, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing, and can also automatically stop timing, so that a fully automatic alarm can be realized.

[0155] Embodiment 4:

[0156] In order to improve the user experience, the fourth embodiment of the present application provides a prompt circuit, which can be referred to Fig. 9 .

[0157] Fig. 9 This is a schematic diagram of the structure of the prompt circuit in the fourth embodiment provided in the embodiment of the present application, such as Fig. 9 As shown, the prompt circuit includes: a signal generating circuit 102 connected to the main control circuit 101, a first sensor 103, a second sensor 104, a buzzer 105, a gyroscope 106, a first indication module 107, a charger module 108 and a display screen 109.

[0158] Fig. 9 Compared to Figure 6 In terms of the main control circuit 101, a display screen 109 is added, and the other modules are connected to the main control circuit 101. Figure 6 Here, only the display screen 109 is introduced in detail. For the detailed description of the signal generating circuit 102, the first sensor 103, the second sensor 104, the buzzer 105, the gyroscope 106, the first indication module 107 and the charger module 108, reference can be made to the relevant description in the third embodiment, which will not be repeated here.

[0159] The display screen 109 can display the current time, alarm, wallpaper, timer duration, etc. The user can operate on the display screen 109 according to their needs. In the case of the display screen 109, when the buzzer 105 sounds an alarm, if the user does not want to leave, the user can not only turn off the alarm by lifting the earphone compartment, but also select Cancel Alarm on the display screen 109 to turn off the alarm; the user can not only lift the earphone compartment and shake it to realize a later reminder, but also select Remind Later on the display screen 109 to realize the later reminder function of the alarm.

[0160] The display screen 109 may include a capacitive touch screen 109A. The capacitive touch screen 109A is a chip including: a standard voltage interface 3.3V, a fifth control terminal TE / RST, a first communication bus type interface QSPI, a second communication bus type interface CTP I 2 C and interrupt interface CTP_INT.

[0161] Among them, the first communication bus interface type is a QSPI communication bus type interface, and the second communication bus interface type is I 2 C serial communication bus type interface.

[0162] Fig.10 This is a schematic diagram of the specific structure of the prompt circuit in the fourth embodiment provided in the embodiment of the present application, Fig.10 Compared to Figure 8 The difference lies in the connection relationship between the display screen 109 and the Bluetooth main control chip 101A, and the connection relationship of other circuits remains unchanged.

[0163] Here, only the connection relationship between the display screen 109 and the Bluetooth main control chip 101A is described. For the connection relationship between the high-frequency crystal oscillator 102A, the low-frequency crystal oscillator 102B, the Hall sensor 103A, the distance sensor 104A, the buzzer 105, the gyroscope 106, the first indication module 107 and the charger module 108 and the Bluetooth main control chip 101A, please refer to the third embodiment. Figure 8 The relevant description will not be repeated here.

[0164] The display screen 109 is connected to the main control circuit 101, including: the standard voltage interface 3.3V of the capacitive touch screen 109A is connected to the first voltage interface VCC1 of the Bluetooth main control chip 101A; the fifth control terminal TE / RST of the capacitive touch screen 109A is connected to the third control terminal GPIO3 of the Bluetooth main control chip 101A; the first communication bus type interface QSPI of the capacitive touch screen 109A is connected to the first third type communication bus interface QSPI of the Bluetooth main control chip 101A; the second communication bus type interface CTP I2 C is connected to the first type 1 bus interface I of the Bluetooth main control chip 101A 2 C1; the interrupt interface CTP_INT of the capacitive touch screen 109A is connected to the first interrupt interface INT1 of the Bluetooth main control chip 101A.

[0165] The first voltage interface VCC1 of the Bluetooth main control chip 101A is used to provide a 3.3 volt working voltage to the capacitive touch screen 109A; in the case where the prompt circuit includes the capacitive touch screen 109A, the different types of control signals generated by the Bluetooth main control chip 101A may also include a fifth control signal, and the fifth control signal controls the capacitive touch screen 109A to work through the third control terminal GPIO of the Bluetooth main control chip 101A; the first third type communication bus interface QSPI of the Bluetooth main control chip 101A and the first first type bus interface I 2 C1 is used to communicate with the capacitive touch screen 109A to transmit data; the first interrupt interface INT1 of the Bluetooth main control chip 101A is used to receive the interrupt request transmitted by the capacitive touch screen 109A.

[0166] Combine the following Fig.10 , illustrating the working principle of the prompt circuit provided in Example 4 of the present application.

[0167] When the prompt circuit is out of power, the user can choose to use the wired charging circuit 108D to charge the prompt circuit, or can choose to use the wireless charging circuit 108E to charge the prompt circuit. When the prompt circuit is charging, the second light-emitting diode D2 emits light, and when the prompt circuit is fully charged, the second light-emitting diode D2 stops emitting light (i.e., the light goes out). After the prompt circuit is fully charged, when the prompt circuit is used, the battery 108B provides power to the prompt circuit.

[0168] When the reminder circuit is used, the Bluetooth main control chip 101A divides the high-frequency signal and the low-frequency signal to generate a first control signal, a second control signal, a third control signal and a fourth control signal. The fourth control signal controls the gyroscope 106 to detect the state of the earphone compartment every 40 minutes. If the earphone compartment is detected to be on the desktop, the Bluetooth main control chip 101A starts the alarm function; if the earphone compartment is detected to be on the user, the Bluetooth main control chip 101A does not start the alarm function.

[0169] When the earphone compartment is on the desktop, the user activates the distance sensor 104A by opening the earphone cover of the earphone compartment, and the first control signal controls the Hall sensor 103A to detect the state of the earphone compartment cover. When the earphone cover of the earphone compartment is detected to be in the open state, the first light-emitting diode D1 emits light. The second control signal controls the distance sensor 104A to detect whether there is a user within 1 meter. If there is a user within 1 meter, the Bluetooth main control chip 101A starts the timer in the alarm function, and the timer starts the first timing.

[0170] When the timer counts for more than 30 minutes and the distance sensor 104A detects the presence of a user within 30 minutes (ie, the user has not left within these 30 minutes), the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0171] If the user does not leave, the buzzer 105 will remind the user to leave at a second interval. If the user does not want to leave and wants to turn off the alarm function, the user can lift the earphone compartment to turn off the alarm function or select cancel the alarm on the display 109 to turn off the alarm function. If the user wants the alarm to remind you again later, the user can lift the earphone compartment and shake it to enable the alarm to remind him later, or select remind him later on the display 109 to enable the alarm to remind him later. This supports users to manually cancel timing and reminders at any time, making it convenient for users to carry around.

[0172] If the user is away for more than 1 minute (i.e., the distance sensor 104A detects that there is no user within 1 minute), the first timing of the timer ends. The user returns after resting for the third time, and the timer starts the second timing. If the user's rest time exceeds the third time, the earphone compartment enters the sleep state. After the earphone compartment enters the sleep state, the distance sensor 104A (i.e., the second sensor 104) also enters the sleep state. When the user returns again, the distance sensor 104A needs to be activated and the timer starts the second timing. If the user's rest time is less than 10 minutes, the timer continues the first timing, and the buzzer 105 continues to remind the user to leave every second time.

[0173] The prompt circuit provided in the fourth embodiment of the present application, on the one hand, can use the gyroscope to determine the state of the earphone compartment. The alarm function will only be activated when the earphone compartment is on the desktop, which can save power; on the second hand, it can use the second sensor to determine whether the user is in a learning state for a long time. If the user studies for too long, the buzzer can be used to remind the user to take a rest, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing and automatically stop timing, so a fully automatic alarm can be realized.

[0174] Embodiment five:

[0175] In order to facilitate the storage of Bluetooth headsets, the fifth embodiment of the present application provides a prompt circuit, which can be referred to Fig.11 .

[0176] Fig.11 The present invention provides a schematic diagram of the structure of the prompt circuit in the fifth embodiment of the present application, wherein the prompt circuit includes: a signal generating circuit 102 connected to the main control circuit 101, a first sensor 103, a second sensor 104, a buzzer 105, a gyroscope 106, a first indication module 107, a charger module 108 and a display screen 109, and an earphone access point 110 connected to the charger module 108.

[0177] Fig.11 Compared to Fig. 9 For example, an earphone access point 110 connected to the charger module 108 is added, and the remaining modules are connected to Fig. 9 Here, only the earphone access point 110 is described in detail. For the detailed description of the signal generating circuit 102, the first sensor 103, the second sensor 104, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108 and the display screen 109, reference can be made to the relevant description in the fourth embodiment, which will not be repeated here.

[0178] The earphone access area 110 is used to store a left-ear wireless Bluetooth earphone and a right-ear wireless Bluetooth earphone.

[0179] The earphone access area 110 includes a first left ear Bluetooth earphone jack L1, a second left ear Bluetooth earphone grounding jack L2, a first right ear Bluetooth earphone jack R1 and a second right ear Bluetooth earphone grounding jack R2. The first left ear Bluetooth earphone jack L1 is used to store the left ear wireless Bluetooth earphone and charge the left ear wireless Bluetooth earphone; the second left ear Bluetooth earphone grounding jack L2 is grounded; the first right ear Bluetooth earphone jack R1 is used to store the right ear wireless Bluetooth earphone and charge the right ear wireless Bluetooth earphone; the second right ear Bluetooth earphone grounding jack R2 is grounded.

[0180] Fig.12 A schematic diagram of the specific structure of the prompt circuit in the fifth embodiment provided in the embodiment of the present application, Fig.12 Compared to Fig.10 The difference lies in the connection relationship between the earphone access point 110 and the charger chip 108A, and the connection relationship of other circuits remains unchanged.

[0181] Here, only the connection relationship between the earphone access point 110 and the charger chip 108A is described. For the connection relationship between the high-frequency crystal oscillator 102A, the low-frequency crystal oscillator 102B, the Hall sensor 103A, the distance sensor 104A, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108 and the capacitive touch screen 109A and the Bluetooth main control chip 101A, reference can be made to the fourth embodiment. Fig.10 The relevant description will not be repeated here.

[0182] The earphone access point 110 is connected to the charger module 108, including: a first left ear Bluetooth earphone jack L1 connected to the left ear voltage interface VOL of the charger chip 108A; a first right ear Bluetooth earphone jack R1 connected to the right ear voltage interface VOR of the charger chip 108A.

[0183] The left ear voltage interface VOL of the charger chip 108A is used to charge the left ear wireless Bluetooth headset, and the right ear voltage interface VOR of the charger chip 108A is used to charge the right ear wireless Bluetooth headset.

[0184] Combine the following Fig.12 , illustrating the working principle of the prompt circuit provided in Example 5 of the present application.

[0185] If the user needs to wear a Bluetooth headset, the Bluetooth headset can be taken out from the headset compartment and worn on the ear. If the user does not need to wear a Bluetooth headset, the prompt circuit charges the left ear wireless Bluetooth headset and the right ear wireless Bluetooth headset.

[0186] When the prompt circuit is out of power, the user can choose to use the wired charging circuit 108D to charge the prompt circuit, or can choose to use the wireless charging circuit 108E to charge the prompt circuit. When the prompt circuit is charging, the second light-emitting diode D2 emits light, and when the prompt circuit is fully charged, the second light-emitting diode D2 stops emitting light (i.e., the light goes out). After the prompt circuit is fully charged, when the prompt circuit is used, the battery 108B provides power to the prompt circuit.

[0187] When the reminder circuit is used, the Bluetooth main control chip 101A divides the high-frequency signal and the low-frequency signal to generate a first control signal, a second control signal, a third control signal and a fourth control signal. The fourth control signal controls the gyroscope 106 to detect the state of the earphone compartment every 40 minutes. If the earphone compartment is detected to be on the desktop, the Bluetooth main control chip 101A starts the alarm function; if the earphone compartment is detected to be on the user, the Bluetooth main control chip 101A does not start the alarm function.

[0188] When the earphone compartment is on the desktop, the user activates the distance sensor 104A by opening the earphone cover of the earphone compartment, and the first control signal controls the Hall sensor 103A to detect the state of the earphone compartment cover. When the earphone cover of the earphone compartment is detected to be in the open state, the first light-emitting diode D1 emits light. The second control signal controls the distance sensor 104A to detect whether there is a user within 1 meter. If there is a user within 1 meter, the Bluetooth main control chip 101A starts the timer in the alarm function, and the timer starts the first timing.

[0189] When the timer counts for more than 30 minutes and the distance sensor 104A detects the presence of a user within 30 minutes (ie, the user has not left within these 30 minutes), the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0190] If the user does not leave, the buzzer 105 will remind the user to leave at a second interval. If the user does not want to leave and wants to turn off the alarm function, the user can lift the earphone compartment to turn off the alarm function or select cancel the alarm on the display 109 to turn off the alarm function. If the user wants the alarm to remind you again later, the user can lift the earphone compartment and shake it to enable the alarm to remind him later, or select remind him later on the display 109 to enable the alarm to remind him later. This supports users to manually cancel timing and reminders at any time, making it convenient for users to carry around.

[0191] If the user is away for more than 1 minute (i.e., the distance sensor 104A detects that there is no user within 1 minute), the first timing of the timer ends. The user returns after resting for the third time, and the timer starts the second timing. If the user's rest time exceeds the third time, the earphone compartment enters the sleep state. After the earphone compartment enters the sleep state, the distance sensor 104A (i.e., the second sensor 104) also enters the sleep state. When the user returns again, the distance sensor 104A needs to be activated and the timer starts the second timing. If the user's rest time is less than 10 minutes, the timer continues the first timing, and the buzzer 105 continues to remind the user to leave every second time.

[0192] The prompt circuit provided in the fifth embodiment of the present application, on the one hand, can use the gyroscope to determine the state of the earphone compartment. Only when the earphone compartment is on the desktop will the alarm function be activated, which can save power; on the second hand, using the second sensor, it can be determined whether the user is in a learning state for a long time. If the user studies for too long, the buzzer can be used to remind the user to take a rest, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing, and can also automatically stop timing, so that a fully automatic alarm can be realized.

[0193] Embodiment six:

[0194] In order to establish communication between the Bluetooth headset and the headset compartment, the sixth embodiment of the present application provides a prompt circuit, which can be referred to Fig.13 .

[0195] Fig.13 This is a schematic diagram of the structure of the prompt circuit in the sixth embodiment provided in the embodiment of the present application, such as Fig.13 As shown, the prompt circuit includes: a signal generating circuit 102 connected to the main control circuit 101, a first sensor 103, a second sensor 104, a buzzer 105, a gyroscope 106, a first indication module 107, a charger module 108, a display screen 109 and an antenna module 111, and an earphone access point 110 connected to the charger module 108.

[0196] Fig.13 Compared to Fig.11 In terms of the antenna module 111 connected to the main control circuit 101, the remaining modules are connected to Fig.11 Here, only the antenna module 111 is described in detail. For the detailed description of the signal generating circuit 102, the first sensor 103, the second sensor 104, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108, the display screen 109 and the earphone access point 110, please refer to the relevant description in the fifth embodiment, which will not be repeated here.

[0197] The antenna module 111 may use the antenna component BT_2G4, or may be an antenna module of other types, which is not particularly limited in the embodiments of the present application.

[0198] Fig.14 This is a schematic diagram of the specific structure of the prompt circuit in the sixth embodiment provided in the embodiment of the present application, Fig.14 Compared to Fig.12 The difference lies in the connection relationship between the antenna component BT_2G4 and the Bluetooth main control chip 101A, and the connection relationship of other circuits remains unchanged.

[0199] Here, only the connection relationship between the antenna component BT_2G4 and the Bluetooth main control chip 101A is described. For the connection relationship between the high-frequency crystal oscillator 102A, the low-frequency crystal oscillator 102B, the Hall sensor 103A, the distance sensor 104A, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108, the capacitive touch screen 109A and the Bluetooth main control chip 101A, and the connection relationship between the earphone access point 110 and the charger chip 108A, please refer to the fifth embodiment. Fig.12 The relevant description will not be repeated here.

[0200] The antenna module 111 is connected to the main control circuit 101, including: the first end of the antenna component BT_2G4 is connected to the antenna pin ANT of the Bluetooth main control chip 101A. The antenna component BT_2G4 is used to communicate with the Bluetooth headset stored in the headset access 110 through the Bluetooth main control chip 101A and the charger chip 108A.

[0201] Combine the following Fig.14 , illustrating the working principle of the prompt circuit provided in Example 6 of the present application.

[0202] If the user needs to wear a Bluetooth headset, the Bluetooth headset can be taken out from the headset compartment and worn on the ear. If the user does not need to wear a Bluetooth headset, the prompt circuit charges the left ear wireless Bluetooth headset and the right ear wireless Bluetooth headset, and the antenna module 111 communicates with the Bluetooth headset.

[0203] When the prompt circuit is out of power, the user can choose to use the wired charging circuit 108D to charge the prompt circuit, or can choose to use the wireless charging circuit 108E to charge the prompt circuit. When the prompt circuit is charging, the second light-emitting diode D2 emits light, and when the prompt circuit is fully charged, the second light-emitting diode D2 stops emitting light (i.e., the light goes out). After the prompt circuit is fully charged, when the prompt circuit is used, the battery 108B provides power to the prompt circuit.

[0204] When the reminder circuit is used, the Bluetooth main control chip 101A divides the high-frequency signal and the low-frequency signal to generate a first control signal, a second control signal, a third control signal and a fourth control signal. The fourth control signal controls the gyroscope 106 to detect the state of the earphone compartment every 40 minutes. If the earphone compartment is detected to be on the desktop, the Bluetooth main control chip 101A starts the alarm function; if the earphone compartment is detected to be on the user, the Bluetooth main control chip 101A does not start the alarm function.

[0205] When the earphone compartment is on the desktop, the user activates the distance sensor 104A by opening the earphone cover of the earphone compartment, and the first control signal controls the Hall sensor 103A to detect the state of the earphone compartment cover. When the earphone cover of the earphone compartment is detected to be in the open state, the first light-emitting diode D1 emits light. The second control signal controls the distance sensor 104A to detect whether there is a user within 1 meter. If there is a user within 1 meter, the Bluetooth main control chip 101A starts the timer in the alarm function, and the timer starts the first timing.

[0206] When the timer counts for more than 30 minutes and the distance sensor 104A detects the presence of a user within 30 minutes (ie, the user has not left within these 30 minutes), the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0207] If the user does not leave, the buzzer 105 will remind the user to leave at a second interval. If the user does not want to leave and wants to turn off the alarm function, the user can lift the earphone compartment to turn off the alarm function or select cancel the alarm on the display 109 to turn off the alarm function. If the user wants the alarm to remind you again later, the user can lift the earphone compartment and shake it to enable the alarm to remind him later, or select remind him later on the display 109 to enable the alarm to remind him later. This supports users to manually cancel timing and reminders at any time, making it convenient for users to carry around.

[0208] If the user is away for more than 1 minute (i.e., the distance sensor 104A detects that there is no user within 1 minute), the first timing of the timer ends. The user returns after resting for the third time, and the timer starts the second timing. If the user's rest time exceeds the third time, the earphone compartment enters the sleep state. After the earphone compartment enters the sleep state, the distance sensor 104A (i.e., the second sensor 104) also enters the sleep state. When the user returns again, the distance sensor 104A needs to be activated and the timer starts the second timing. If the user's rest time is less than 10 minutes, the timer continues the first timing, and the buzzer 105 continues to remind the user to leave every second time.

[0209] The prompt circuit provided in the sixth embodiment of the present application, on the one hand, can use a gyroscope to determine the state of the earphone compartment. Only when the earphone compartment is on the desktop will the alarm function be activated, thereby saving power; on the second hand, using the second sensor, it can be determined whether the user has been in a learning state for a long time. If the user has been studying for too long, the buzzer can be used to remind the user to take a break, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing, and can also automatically stop timing, thereby realizing a fully automatic alarm.

[0210] Embodiment seven:

[0211] In order to meet the diverse needs of users, the seventh embodiment of the present application provides a prompt circuit, which can be referred to Fig.15 .

[0212] Fig.15 This is a schematic diagram of the structure of the prompt circuit in the seventh embodiment of the present application, as shown in FIG. Fig.15 As shown, the prompt circuit includes: a signal generating circuit 102 connected to the main control circuit 101, a first sensor 103, a second sensor 104, a buzzer 105, a gyroscope 106, a first indication module 107, a charger module 108, a display screen 109, an antenna module 111 and a memory 112, and an earphone access point 110 connected to the charger module 108.

[0213] Fig.15Compared to Fig.13 In terms of the main control circuit 101, there is an additional memory 112 connected to the main control circuit 101, and the other modules are connected to Fig.13 Here, only the memory 112 is introduced in detail. For the detailed description of the signal generating circuit 102, the first sensor 103, the second sensor 104, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108, the display screen 109, the earphone access point 110 and the antenna module 111, please refer to the relevant description in the sixth embodiment, which will not be repeated here.

[0214] The memory 112 is at least used to store audio signals, which may be music. The memory 112 may also store other programs, which is not particularly limited in the embodiment of the present application.

[0215] The memory 112 includes a storage chip 112A. The storage chip 112A may be an SD memory card or other types of memory cards, which is not particularly limited in the embodiments of the present application.

[0216] The memory chip 112A includes a voltage interface 3.3V and a communication interface QSPI. The communication interface type of the memory chip 112A is a communication interface of a QSPI communication bus.

[0217] Fig.16 This is a schematic diagram of the specific structure of the prompt circuit in Embodiment 7 provided in the embodiments of the present application, Fig.16 Compared to Fig.14 The difference lies in the connection relationship between the storage chip 112A and the Bluetooth main control chip 101A, and the connection relationship of other circuits remains unchanged.

[0218] Here, only the connection relationship between the storage chip 112A and the Bluetooth main control chip 101A is described. For the connection relationship between the high-frequency crystal oscillator 102A, the low-frequency crystal oscillator 102B, the Hall sensor 103A, the distance sensor 104A, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108, the capacitive touch screen 109A, the antenna component BT_2G4 and the Bluetooth main control chip 101A, and the connection relationship between the earphone access point 110 and the charger chip 108A, please refer to the sixth embodiment. Fig.14 The relevant description will not be repeated here.

[0219] The memory 112 is connected to the main control circuit 101, including: the voltage interface 3.3V of the memory chip 112A is connected to the second voltage interface VCC2 of the Bluetooth main control chip 101A; the communication interface QSPI of the memory chip 112A is connected to the second third-category communication bus interface SD0 QSPI of the Bluetooth main control chip 101A.

[0220] The second voltage interface VCC2 of the Bluetooth main control chip 101A is used to provide a 3.3 volt operating voltage to the storage chip 112A; the second third-category communication bus interface SD0 QSPI of the Bluetooth main control chip 101A is used to communicate with the storage chip 112A.

[0221] Combine the following Fig.16 , illustrating the working principle of the prompt circuit provided in Example 7 of the present application.

[0222] If the user needs to wear a Bluetooth headset, the Bluetooth headset can be taken out from the headset compartment and worn on the ear. If the user does not need to wear a Bluetooth headset, the prompt circuit charges the left ear wireless Bluetooth headset and the right ear wireless Bluetooth headset, and the antenna module 111 communicates with the Bluetooth headset.

[0223] If users want to listen to music, they can listen by wearing Bluetooth headphones, or choose to listen to music through the headphone jack.

[0224] When the prompt circuit is out of power, the user can choose to use the wired charging circuit 108D to charge the prompt circuit, or can choose to use the wireless charging circuit 108E to charge the prompt circuit. When the prompt circuit is charging, the second light-emitting diode D2 emits light, and when the prompt circuit is fully charged, the second light-emitting diode D2 stops emitting light (i.e., the light goes out). After the prompt circuit is fully charged, when the prompt circuit is used, the battery 108B provides power to the prompt circuit.

[0225] When the reminder circuit is used, the Bluetooth main control chip 101A divides the high-frequency signal and the low-frequency signal to generate a first control signal, a second control signal, a third control signal and a fourth control signal. The fourth control signal controls the gyroscope 106 to detect the state of the earphone compartment every 40 minutes. If the earphone compartment is detected to be on the desktop, the Bluetooth main control chip 101A starts the alarm function; if the earphone compartment is detected to be on the user, the Bluetooth main control chip 101A does not start the alarm function.

[0226] When the earphone compartment is on the desktop, the user activates the distance sensor 104A by opening the earphone cover of the earphone compartment, and the first control signal controls the Hall sensor 103A to detect the state of the earphone compartment cover. When the earphone cover of the earphone compartment is detected to be in the open state, the first light-emitting diode D1 emits light. The second control signal controls the distance sensor 104A to detect whether there is a user within 1 meter. If there is a user within 1 meter, the Bluetooth main control chip 101A starts the timer in the alarm function, and the timer starts the first timing.

[0227] When the timer counts for more than 30 minutes and the distance sensor 104A detects the presence of a user within 30 minutes (ie, the user has not left within these 30 minutes), the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0228] If the user does not leave, the buzzer 105 will remind the user to leave at a second interval. If the user does not want to leave and wants to turn off the alarm function, the user can lift the earphone compartment to turn off the alarm function or select cancel the alarm on the display 109 to turn off the alarm function. If the user wants the alarm to remind you again later, the user can lift the earphone compartment and shake it to enable the alarm to remind him later, or select remind him later on the display 109 to enable the alarm to remind him later. This supports users to manually cancel timing and reminders at any time, making it convenient for users to carry around.

[0229] If the user is away for more than 1 minute (i.e., the distance sensor 104A detects that there is no user within 1 minute), the first timing of the timer ends. The user returns after resting for the third time, and the timer starts the second timing. If the user's rest time exceeds the third time, the earphone compartment enters the sleep state. After the earphone compartment enters the sleep state, the distance sensor 104A (i.e., the second sensor 104) also enters the sleep state. When the user returns again, the distance sensor 104A needs to be activated and the timer starts the second timing. If the user's rest time is less than 10 minutes, the timer continues the first timing, and the buzzer 105 continues to remind the user to leave every second time.

[0230] The prompt circuit provided in the seventh embodiment of the present application, on the one hand, can determine the state of the earphone compartment by using a gyroscope. The alarm function will only be activated when the earphone compartment is on the desktop, thereby saving power; on the second hand, it can determine whether the user has been in a learning state for a long time by using a second sensor. If the user has been studying for too long, the buzzer can be used to remind the user to take a rest, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing and automatically stop timing, thereby realizing a fully automatic alarm.

[0231] Embodiment eight:

[0232] For safety and hygiene, the eighth embodiment of the present application provides a prompt circuit, which can be referred to Fig.17 .

[0233] Fig.17 This is a schematic diagram of the structure of the prompt circuit in the eighth embodiment provided in the present application, such as Fig.17As shown, the prompt circuit includes: a signal generating circuit 102 connected to the main control circuit 101, a first sensor 103, a second sensor 104, a buzzer 105, a gyroscope 106, a first indication module 107, a charger module 108, a display screen 109, an antenna module 111 and a memory 112, as well as an earphone access point 110 connected to the charger module 108, and a disinfection module 113 connected to the connecting line connecting the charger module and the main control circuit.

[0234] Fig.17 Compared to Fig.15 For example, there is an additional disinfection module 113 connected to the connection line between the charger module and the main control circuit, and the remaining modules are connected to Fig.15 Only the memory 112 is described in detail here, and the detailed description of the signal generating circuit 102, the first sensor 103, the second sensor 104, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108, the display screen 109, the earphone access point 110, the antenna module 111 and the memory 112 can be referred to the relevant description in the seventh embodiment, which will not be repeated here.

[0235] The disinfection module 113 includes a boost circuit 113A and a third light emitting diode D3. The boost circuit 113A has an input end and an output end. The output end of the boost circuit 113A is connected to the anode of the third light emitting diode D3. The cathode of the third light emitting diode D3 is grounded.

[0236] The boost circuit 113A is used to boost the voltage outputted by the charger module 108 to the disinfection module 113 to obtain a second boosted voltage, the voltage value of which is 5.8 V. It is understandable that within the allowable error range, the voltage value of the second boosted voltage may be greater than or less than 5.8 V.

[0237] The third light emitting diode D3 adopts an ultraviolet light emitting diode and is used to disinfect the Bluetooth headset.

[0238] Fig.18 This is a schematic diagram of the specific structure of the prompt circuit in Embodiment 8 provided in the embodiments of the present application, Fig.18 Compared to Fig.16 The difference lies in the connection relationship between the disinfection module 113 and the charger chip 108A, and the connection relationship of the other circuits remains unchanged.

[0239] Here, only the connection relationship between the disinfection module 113 and the Bluetooth main control chip 101A is described. For the connection relationship between the high-frequency crystal oscillator 102A, the low-frequency crystal oscillator 102B, the Hall sensor 103A, the distance sensor 104A, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108, the capacitive touch screen 109A, the antenna assembly BT_2G4 and the storage chip 112A and the Bluetooth main control chip 101A, and the connection relationship between the earphone access point 110 and the charger chip 108A can refer to the seventh embodiment. Fig.16 The relevant description will not be repeated here.

[0240] The disinfection module 113 is connected to the connection line between the charger module 108 and the main control circuit 101, including: the input end of the boost circuit 113A is connected to point b, point b is located on the connection line between the second power interface VSYS of the charger chip 108A and the battery interface BAT of the Bluetooth main control chip 101A, point b is a virtual point for the convenience of describing the connection relationship. In fact, it is equivalent to that the input end of the boost circuit 113A is connected to the second power interface VSYS of the charger chip 108A.

[0241] The second power interface VSYS of the charger chip 108A is used to provide electrical energy to the boost circuit 113A. The boost circuit 113A boosts the electrical energy to obtain a second boosted voltage and transmits the second boosted voltage to the third light-emitting diode D3. After receiving the second boosted voltage, the third light-emitting diode D3 emits ultraviolet rays to disinfect the Bluetooth headset.

[0242] Combine the following Fig.18 , illustrating the working principle of the prompt circuit provided in Example 8 of the present application.

[0243] If the user needs to wear a Bluetooth headset, the Bluetooth headset can be taken out from the headset compartment and worn on the ear. If the user does not need to wear a Bluetooth headset, the prompt circuit charges the left ear wireless Bluetooth headset and the right ear wireless Bluetooth headset, and the antenna module 111 communicates with the Bluetooth headset, and the disinfection module 113 disinfects the Bluetooth headset.

[0244] If users want to listen to music, they can listen by wearing Bluetooth headphones, or choose to listen to music through the headphone jack.

[0245] When the prompt circuit is out of power, the user can choose to use the wired charging circuit 108D to charge the prompt circuit, or can choose to use the wireless charging circuit 108E to charge the prompt circuit. When the prompt circuit is charging, the second light-emitting diode D2 emits light, and when the prompt circuit is fully charged, the second light-emitting diode D2 stops emitting light (i.e., the light goes out). After the prompt circuit is fully charged, when the prompt circuit is used, the battery 108B provides power to the prompt circuit.

[0246] When the reminder circuit is used, the Bluetooth main control chip 101A divides the high-frequency signal and the low-frequency signal to generate a first control signal, a second control signal, a third control signal and a fourth control signal. The fourth control signal controls the gyroscope 106 to detect the state of the earphone compartment every 40 minutes. If the earphone compartment is detected to be on the desktop, the Bluetooth main control chip 101A starts the alarm function; if the earphone compartment is detected to be on the user, the Bluetooth main control chip 101A does not start the alarm function.

[0247] When the earphone compartment is on the desktop, the user activates the distance sensor 104A by opening the earphone cover of the earphone compartment, and the first control signal controls the Hall sensor 103A to detect the state of the earphone compartment cover. When the earphone cover of the earphone compartment is detected to be in the open state, the first light-emitting diode D1 emits light. The second control signal controls the distance sensor 104A to detect whether there is a user within 1 meter. If there is a user within 1 meter, the Bluetooth main control chip 101A starts the timer in the alarm function, and the timer starts the first timing.

[0248] When the timer counts for more than 30 minutes and the distance sensor 104A detects the presence of a user within 30 minutes (ie, the user has not left within these 30 minutes), the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0249] If the user does not leave, the buzzer 105 will remind the user to leave at a second interval. If the user does not want to leave and wants to turn off the alarm function, the user can lift the earphone compartment to turn off the alarm function or select cancel the alarm on the display 109 to turn off the alarm function. If the user wants the alarm to remind you again later, the user can lift the earphone compartment and shake it to enable the alarm to remind him later, or select remind him later on the display 109 to enable the alarm to remind him later. This supports users to manually cancel timing and reminders at any time, making it convenient for users to carry around.

[0250] If the user is away for more than 1 minute (i.e., the distance sensor 104A detects that there is no user within 1 minute), the first timing of the timer ends. The user returns after resting for the third time, and the timer starts the second timing. If the user's rest time exceeds the third time, the earphone compartment enters the sleep state. After the earphone compartment enters the sleep state, the distance sensor 104A (i.e., the second sensor 104) also enters the sleep state. When the user returns again, the distance sensor 104A needs to be activated and the timer starts the second timing. If the user's rest time is less than 10 minutes, the timer continues the first timing, and the buzzer 105 continues to remind the user to leave every second time.

[0251] The prompt circuit provided in Example 8 of the present application, on the one hand, can use a gyroscope to determine the state of the earphone compartment. Only when the earphone compartment is on the desktop will the alarm function be activated, which can save power; on the second hand, using the second sensor, it can determine whether the user is in a learning state for a long time. If the user studies for too long, the buzzer can be used to remind the user to take a break, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing, and can also automatically stop timing, so that a fully automatic alarm can be realized.

[0252] Embodiment nine:

[0253] In order to protect the prompt circuit and further improve the service life of the prompt circuit, the ninth embodiment of the present application provides a prompt circuit, which can be referred to Fig.19 .

[0254] Fig.19 This is a schematic diagram of the structure of the prompt circuit in the ninth embodiment provided in the present application, such as Fig.19 As shown, the prompt circuit includes: a signal generating circuit 102 connected to the main control circuit 101, a first sensor 103, a second sensor 104, a buzzer 105, a gyroscope 106, a first indication module 107, a charger module 108, a display screen 109, an antenna module 111, a memory 112 and a reset module 114, and an earphone access point 110 connected to the charger module 108, and a disinfection module 113 connected to the connection line connecting the charger module and the main control circuit.

[0255] Fig.19 Compared to Fig.17 For example, a reset module 114 is added to the main control circuit 101, and the other modules are connected to Fig.17Only the reset module 114 is introduced in detail here, and the detailed description of the signal generating circuit 102, the first sensor 103, the second sensor 104, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108, the display screen 109, the earphone access point 110, the antenna module 111, the memory 112 and the disinfection module 113 can be referred to the relevant description in the eighth embodiment, which will not be repeated here.

[0256] The reset module 114 includes a third switch K3 , a first end of the third switch K3 is grounded, and a second end of the third switch K3 is connected to the main control circuit 101 .

[0257] The third switch K3 may be a metal-oxide-semiconductor field effect transistor (MOS), a bipolar junction transistor (BJT), an electronic switch such as a relay, or a key switch, etc., which is not particularly limited in the present embodiment. In order to reduce costs, the third switch K3 is taken as an example of a key switch for exemplary description.

[0258] The third switch K3 is used to control the main control circuit 101 to reset in case of an emergency to protect the prompt circuit. The emergency may be water spilled on the earphone compartment, etc., which is not particularly limited in the present embodiment.

[0259] Fig. 20 This is a schematic diagram of the specific structure of the prompt circuit in Embodiment 9 provided in the embodiments of the present application, Fig. 20 Compared to Fig.18 The difference lies in the connection relationship between the reset module 114 and the Bluetooth main control chip 101A, and the connection relationship of other circuits remains unchanged.

[0260] Here, only the connection relationship between the reset module 114 and the Bluetooth main control chip 101A is described. For the connection relationship between the high-frequency crystal oscillator 102A, the low-frequency crystal oscillator 102B, the Hall sensor 103A, the distance sensor 104A, the buzzer 105, the gyroscope 106, the first indication module 107, the charger module 108, the capacitive touch screen 109A, the antenna assembly BT_2G4 and the storage chip 112A and the Bluetooth main control chip 101A, and the connection relationship between the earphone access point 110 and the boost circuit 113A and the charger chip 108A, please refer to the eighth embodiment. Fig.18 The relevant description will not be repeated here.

[0261] The reset module 114 is connected to the main control circuit 101 and includes: the second end of the third switch K3 is connected to the fourth interrupt interface WIO0 of the Bluetooth main control chip 101A. In an emergency, the user can reset the Bluetooth main control chip 101A by single-clicking or long-pressing the third switch K3.

[0262] Combine the following Fig. 20 , illustrating the working principle of the prompt circuit provided in Example 9 of the present application.

[0263] If the user needs to wear a Bluetooth headset, the Bluetooth headset can be taken out from the headset compartment and worn on the ear. If the user does not need to wear a Bluetooth headset, the prompt circuit charges the left ear wireless Bluetooth headset and the right ear wireless Bluetooth headset, and the antenna module 111 communicates with the Bluetooth headset, and the disinfection module 113 disinfects the Bluetooth headset.

[0264] If users want to listen to music, they can listen by wearing Bluetooth headphones, or choose to listen to music through the headphone jack.

[0265] When the prompt circuit is out of power, the user can choose to use the wired charging circuit 108D to charge the prompt circuit, or can choose to use the wireless charging circuit 108E to charge the prompt circuit. When the prompt circuit is charging, the second light-emitting diode D2 emits light, and when the prompt circuit is fully charged, the second light-emitting diode D2 stops emitting light (i.e., the light goes out). After the prompt circuit is fully charged, when the prompt circuit is used, the battery 108B provides power to the prompt circuit.

[0266] When the reminder circuit is used, the Bluetooth main control chip 101A divides the high-frequency signal and the low-frequency signal to generate a first control signal, a second control signal, a third control signal and a fourth control signal. The fourth control signal controls the gyroscope 106 to detect the state of the earphone compartment every 40 minutes. If the earphone compartment is detected to be on the desktop, the Bluetooth main control chip 101A starts the alarm function; if the earphone compartment is detected to be on the user, the Bluetooth main control chip 101A does not start the alarm function.

[0267] When the earphone compartment is on the desktop, the user activates the distance sensor 104A by opening the earphone cover of the earphone compartment, and the first control signal controls the Hall sensor 103A to detect the state of the earphone compartment cover. When the earphone cover of the earphone compartment is detected to be in the open state, the first light-emitting diode D1 emits light. The second control signal controls the distance sensor 104A to detect whether there is a user within 1 meter. If there is a user within 1 meter, the Bluetooth main control chip 101A starts the timer in the alarm function, and the timer starts the first timing.

[0268] When the timer counts for more than 30 minutes and the distance sensor 104A detects the presence of a user within 30 minutes (ie, the user has not left within these 30 minutes), the third control signal is used to control the buzzer 105 to sound an alarm to prompt the user to leave.

[0269] If the user does not leave, the buzzer 105 will remind the user to leave at a second interval. If the user does not want to leave and wants to turn off the alarm function, the user can lift the earphone compartment to turn off the alarm function or select cancel the alarm on the display 109 to turn off the alarm function. If the user wants the alarm to remind you again later, the user can lift the earphone compartment and shake it to enable the alarm to remind him later, or select remind him later on the display 109 to enable the alarm to remind him later. This supports users to manually cancel timing and reminders at any time, making it convenient for users to carry around.

[0270] If the user is away for more than 1 minute (i.e., the distance sensor 104A detects that there is no user within 1 minute), the first timing of the timer ends. The user returns after resting for the third time, and the timer starts the second timing. If the user's rest time exceeds the third time, the earphone compartment enters the sleep state. After the earphone compartment enters the sleep state, the distance sensor 104A (i.e., the second sensor 104) also enters the sleep state. When the user returns again, the distance sensor 104A needs to be activated and the timer starts the second timing. If the user's rest time is less than 10 minutes, the timer continues the first timing, and the buzzer 105 continues to remind the user to leave every second time.

[0271] If an emergency occurs, the user can reset the Bluetooth main control chip 101A by single-clicking or long-pressing the third switch K3.

[0272] The reminder circuit provided in the ninth embodiment of the present application, on the one hand, can determine the state of the earphone compartment by using a gyroscope. The alarm function will only be started when the earphone compartment is on the desktop, thereby saving power; on the second hand, it can determine whether the user has been in a learning state for a long time by using a second sensor. If the user has been studying for too long, the buzzer can be used to remind the user to take a break, thereby protecting the user's eyes and having a certain effect on preventing the user from myopia; on the third hand, the timer can automatically start timing and automatically stop timing, thereby realizing a fully automatic alarm.

[0273] As another optional implementation, the embodiment of the present application also provides an earphone compartment, including a compartment body, an earphone cover, a wireless Bluetooth headset, and the prompt circuit described in any one of the above-mentioned embodiments 1 to 9.

[0274] The wireless Bluetooth headset includes a left-ear wireless Bluetooth headset and a right-ear wireless Bluetooth headset.

[0275] When the prompt circuit described in any one of the above-mentioned embodiments 1 to 9 is applied to the earphone compartment provided in the embodiment of the present application, the earphone compartment provided in the embodiment of the present application can achieve the corresponding beneficial effects of the prompt circuit, which will not be repeated here.

[0276] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0277] In addition, in the description of the present application, it should be understood that the terms "longitudinal", "horizontal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0278] In addition, in the present application, unless otherwise clearly stipulated and limited, the terms "connection", "connected", etc. should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0279] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A prompt circuit, characterized in that: include: A main control circuit, a signal generating circuit, a first sensor, a second sensor, a buzzer and a gyroscope; The main control circuit is respectively connected to the signal generating circuit, the first sensor, the second sensor, the buzzer and the gyroscope; The signal generating circuit is used to generate a control signal and transmit the control signal to the main control circuit; The main control circuit is used to control the first sensor, the second sensor, the buzzer and the gyroscope to work according to the control signal; The gyroscope is used to periodically detect the state of the earphone compartment; the state of the earphone compartment at least includes a static state; the main control circuit is also used to start the alarm function when the earphone compartment is in the static state; The first sensor is used to detect the state of the cover of the earphone compartment; the state of the cover of the earphone compartment includes an open state and a closed state; The second sensor is used to detect whether there is a user within the first range; the main control circuit is also used to start the timer in the alarm function when the user is within the first range, and the timer starts timing; When the timer exceeds a first threshold and the second sensor detects that the user has never left the first range within the first threshold, the buzzer is used to emit an alarm sound to prompt the user to leave.

2. The prompt circuit according to claim 1, characterized in that: The prompt circuit also includes a first indication module connected to the main control circuit; The first indication module is used to indicate the status of the lid of the earphone compartment; when the lid of the earphone compartment is in the open state, the first indication module lights up; when the lid of the earphone compartment is in the closed state, the first indication module turns off.

3. The prompt circuit according to claim 2, characterized in that: The prompt circuit also includes a charger module connected to the main control circuit; The charger module is used to charge the main control circuit.

4. The prompt circuit according to claim 3, characterized in that: The prompt circuit also includes a display screen connected to the main control circuit; The display screen is at least used for displaying an alarm clock.

5. The prompt circuit according to claim 4, characterized in that: The prompt circuit also includes an earphone access point connected to the charger module; The earphone storage and access area is used to store wireless Bluetooth earphones, and the wireless Bluetooth earphones include a left-ear wireless Bluetooth earphone and a right-ear wireless Bluetooth earphone.

6. The prompt circuit according to claim 5, characterized in that: The prompt circuit also includes an antenna module connected to the main control circuit; The antenna module is used to connect to the wireless Bluetooth headset.

7. The prompt circuit according to claim 6, characterized in that: The prompt circuit also includes a memory connected to the main control circuit; The memory is at least used to store audio signals.

8. The prompt circuit according to claim 7, characterized in that: The prompt circuit also includes a disinfection module; The input end of the disinfection module is connected to the connection line connecting the charger module and the main control circuit; The disinfection module is used to disinfect the wireless Bluetooth headset.

9. The prompt circuit according to any one of claims 1 to 8, characterized in that: The prompt circuit also includes a reset module connected to the main control circuit; The reset module is used to reset the prompt circuit in an emergency.

10. An earphone compartment, characterized in that: It comprises a compartment body, an earphone cover, a wireless Bluetooth earphone and the prompt circuit described in any one of claims 1 to 9.

Images