An electronic device

Abstract

This invention provides an electronic device, belonging to the technical field of intelligent control devices, comprising at least a controller and a first pressure sensor and a second pressure sensor stacked together; external pressure received by the first pressure sensor is attenuated and then transmitted to the second pressure sensor; the controller is electrically connected to both the first and second pressure sensors; the controller is used to acquire a first sensing output value O from the first pressure sensor. A And to obtain the second sensing output value O of the second pressure sensor. B According to O A and O B The relative magnitude of the values ​​indicates the degree of aging of the first pressure sensor, and the target function execution threshold of the electronic device is lowered accordingly; the target function execution threshold is the value required for the electronic device to perform the target function. A and O B The value corresponding to the specified conditions is reached. This application aims to solve the technical problem in the prior art where the sensitivity of pressure sensors decreases after aging, causing the controller to be unable to trigger electronic devices to perform target functions.

Description

Technical Field

[0001] This invention belongs to the field of intelligent control equipment technology, and particularly relates to an electronic device. Background Technology

[0002] For an electronic device with one sensor, after prolonged use, a single sensor is easily affected by external structural deformation, changes in ambient temperature and humidity, plastic deformation of the sensor's own structure, and aging of the sensing layer material, which can cause the sensor's sensitivity to decrease or even fail. This can be a fatal blow to the normal operation of intelligent control equipment.

[0003] In intelligent control devices, sensors are often exposed on the outside of the housing or located close to it. When the system is affected by environmental changes, structural deformation, or wear and tear from prolonged use, individual sensors, due to their proximity to the housing, may experience decreased sensitivity or even malfunction. When the sensitivity of a pressure sensor decreases, its output value relative to its initial state will drop under the same pressing force. This could cause the pressure sensor's output value to fall below the target function execution threshold, preventing the control system from issuing commands and thus hindering the electronic equipment's subsequent operation. Summary of the Invention

[0004] The purpose of this invention is to provide an electronic device that addresses the technical problem in the prior art where the sensitivity of a pressure sensor decreases after aging, causing the controller to be unable to trigger the electronic device to perform its target function.

[0005] This invention is implemented as follows: an electronic device includes at least a controller, a first pressure sensor, and a second pressure sensor; the first pressure sensor and the second pressure sensor are stacked; external pressure received by the first pressure sensor is attenuated before being transmitted to the second pressure sensor; the aging rate of the first pressure sensor is greater than that of the second pressure sensor; in the initial state, the first sensing output value of the first pressure sensor is O. A The second sensing output value O of the second pressure sensor is greater than or equal to the second sensing output value of the second pressure sensor. B The controller is electrically connected to the first pressure sensor and the second pressure sensor, respectively.

[0006] The controller is used for:

[0007] When the first pressure sensor is subjected to pressure, the first sensing output value O of the first pressure sensor is acquired. A And obtain the second sensing output value O of the second pressure sensor. B ;

[0008] According to O A and OB The relative magnitude of the values ​​determines the aging degree of the first pressure sensor, and the target function execution threshold of the electronic device is lowered based on the aging degree of the first pressure sensor; the target function execution threshold is the threshold required for the electronic device to perform the target function. A and O B The value corresponding to the given conditions.

[0009] Furthermore, the statement based on O A and O B The relative magnitude of the values ​​determines the aging degree of the first pressure sensor, and the target function execution threshold of the electronic device is lowered based on the aging degree of the first pressure sensor, including:

[0010] When O A ≥O B At that time, the target function execution threshold is a preset initial threshold;

[0011] When O A <O B At that time, based on the preset initial threshold, the target function execution threshold is reduced by the difference ΔW;

[0012] The controller is also used for:

[0013] When O A +O B The electronic device is triggered to execute the target function when the threshold value is greater than or equal to the target function execution threshold.

[0014] Furthermore, the electronic device also includes a first substrate, the first pressure sensor being connected to the first substrate, the side of the first substrate facing away from the first pressure sensor being used to receive external pressure, and the first pressure sensor and the second pressure sensor being used to respond to the pressure received by the first substrate.

[0015] Furthermore, the electronic device also includes an insulating layer located between the first pressure sensor and the second pressure sensor.

[0016] Furthermore, the electronic device also includes a second substrate connected to the second pressure sensor, the second substrate being located on the side of the second pressure sensor opposite to the first pressure sensor; the first substrate, the first pressure sensor, the insulating layer, the second pressure sensor, and the second substrate are stacked sequentially.

[0017] Furthermore, the first pressure sensor and the second pressure sensor are sensors of the same model and specifications.

[0018] Furthermore, the electronic device may be a headset, mobile phone, tablet computer, computer, smartwatch, or smart bracelet.

[0019] Furthermore, ΔW varies with O B -O A It increases with the increase of.

[0020] Furthermore, ΔW = O B -O A .

[0021] Furthermore, when O B -O A When the value is greater than half of the preset initial threshold, the target function execution threshold is half of the preset initial threshold.

[0022] The technical advantages of this invention compared to the prior art are as follows: This electronic device includes a first pressure sensor and a second pressure sensor stacked together. The external pressure received by the first pressure sensor is attenuated before being transmitted to the second pressure sensor. The aging rate of the first pressure sensor is greater than that of the second pressure sensor. In the initial state, that is, when neither the first nor the second pressure sensor has aged, the first sensing output value of the first pressure sensor is O. A The second sensing output value O of the second pressure sensor is greater than or equal to the second sensing output value of the second pressure sensor. B During operation, the controller is used to acquire the first sensing output value O of the first pressure sensor when the first pressure sensor is subjected to pressure. A And to obtain the second sensing output value O of the second pressure sensor. B According to O A and O B The relative magnitude of the two pressure sensors determines the aging degree of the first pressure sensor, and the target function execution threshold of the electronic device is lowered according to the aging degree of the first pressure sensor. This allows the controller to still output control signals based on the sensing output values ​​of the two pressure sensors. Therefore, compared to existing technologies that use only one pressure sensor, where the sensing output value cannot reach the target function execution threshold and the controller cannot output control signals after the pressure sensor ages and its sensitivity decreases, this electronic device uses two pressure sensors. When the sensitivity of the first pressure sensor decreases significantly after aging, the target function execution threshold of the electronic device is lowered according to the aging degree of the first pressure sensor. This allows the controller to still output control signals based on the sensing output values ​​of the two pressure sensors, thereby controlling the electronic device to execute the target function. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the electronic device structure provided in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. First substrate; 2. First pressure sensor; 3. Insulating layer; 4. Second pressure sensor; 5. Second substrate. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0028] In the description of this invention, it should be understood that the terms "length", "width", "upper part", "lower part", "upward", "vertical", "horizontal", "bottom", "inner", "outer", "inner side", "outer side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] The electronic device proposed in this application uses two pressure sensors stacked together (specifically, the first pressure sensor 2 and the second pressure sensor 4). By dynamically controlling the target function execution threshold, the controller controls the operation of the device. Specifically, the target function execution threshold of the electronic device is lowered according to the aging degree of the first pressure sensor 2, so that the controller can still output a control signal based on the sum of the sensing output values ​​of the two pressure sensors, thereby controlling the electronic device to execute the target function.

[0032] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The first pressure sensor 2 and the second pressure sensor 4 are used to collect pressure signals. The aging rate of the sensing sensitivity of the first pressure sensor 2 is much faster than the aging rate of the sensing sensitivity of the second pressure sensor 4.

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] This invention provides an electronic device, comprising at least a controller, a first pressure sensor 2, and a second pressure sensor 4. The first pressure sensor 2 and the second pressure sensor 4 are stacked. External pressure received by the first pressure sensor 2 is attenuated before being transmitted to the second pressure sensor 4. The aging rate of the first pressure sensor 2 is greater than that of the second pressure sensor 4. In the initial state, that is, when neither the first pressure sensor 2 nor the second pressure sensor 4 is aged, when the first pressure sensor 2 is subjected to pressure, the pressure is attenuated before being transmitted to the second pressure sensor 4, and the first sensing output value of the first pressure sensor 2 is O. A The second sensing output value O is greater than or equal to that of the second pressure sensor 4. B The controller is electrically connected to the first pressure sensor 2 and the second pressure sensor 4 respectively; the controller is used to acquire the first sensing output value O of the first pressure sensor 2 when the first pressure sensor 2 is subjected to pressure. A And to obtain the second sensing output value O of the second pressure sensor 4 B According to O A and OB The relative magnitude of the values ​​indicates the degree of aging of the first pressure sensor 2, and the target function execution threshold of the electronic device is lowered based on the degree of aging of the first pressure sensor 2; the target function execution threshold is the value required for the electronic device to perform the target function. A and O B The value corresponding to the given conditions.

[0035] In this embodiment, the first pressure sensor 2 and the second pressure sensor 4 are stacked. The external pressure received by the first pressure sensor 2 is attenuated before being transmitted to the second pressure sensor 4. During normal operation, the external pressure received by the first pressure sensor 2 is usually greater than that received by the second pressure sensor 4. Furthermore, the first pressure sensor 2 is more susceptible to external structural deformation, environmental temperature, and humidity than the second pressure sensor 4. Therefore, the aging rate of the first pressure sensor 2 is greater than that of the second pressure sensor 4. In the initial state, that is, when neither the first pressure sensor 2 nor the second pressure sensor 4 has aged, when the first pressure sensor 2 is subjected to pressure, the pressure is attenuated before being transmitted to the second pressure sensor 4, and the first sensing output value of the first pressure sensor 2 is O. A The second sensing output value O is greater than or equal to that of the second pressure sensor 4. B The controller is used to acquire the first sensing output value O of the first pressure sensor 2 when the first pressure sensor 2 is subjected to pressure. A And to obtain the second sensing output value O of the second pressure sensor 4 B According to O A and O B The relative magnitude of the values ​​of the two pressure sensors (first pressure sensor 2 and second pressure sensor 4) determines the degree of aging of the first pressure sensor 2. Based on the degree of aging of the first pressure sensor 2, the target function execution threshold of the electronic device is lowered, so that the controller can still output a control signal based on the sum of the sensing output values ​​of the two pressure sensors (first pressure sensor 2 and second pressure sensor 4). It can be seen that, compared with the prior art which only has one pressure sensor, and whose sensing output value cannot reach the target function execution threshold when the pressure sensor ages and its sensitivity decreases, thus preventing the controller from outputting a control signal, this electronic device sets two pressure sensors. When the sensitivity of the first pressure sensor 2 decreases significantly after aging, the target function execution threshold of the electronic device is lowered based on the degree of aging of the first pressure sensor 2, so that the controller can still output a control signal based on the sum of the sensing output values ​​of the two pressure sensors, thereby controlling the electronic device to execute the target function.

[0036] Furthermore, as a preferred embodiment of this example, according to O A and O BThe relative size of the values ​​determines the aging degree of the first pressure sensor 2, and the target function execution threshold of the electronic device is lowered based on the aging degree of the first pressure sensor 2, including: when O A ≥O B When the target function execution threshold is set to the preset initial threshold, when O A <O B At that time, based on the preset initial threshold, the target function execution threshold is reduced by the difference ΔW; the controller is also used to: when O A +O B When the threshold for executing the target function is greater than or equal to the threshold, the electronic device is triggered to execute the target function.

[0037] In one embodiment, the degree of aging of the sensor can be determined based on changes in its sensitivity. For example, when the sensitivity of the first pressure sensor 2 decreases to 50% of its initial sensitivity, it is considered that the first pressure sensor 2 has significantly aged. In this case, the target function execution threshold is correspondingly lowered. It should be noted that the initial sensitivity refers to the sensitivity of the sensor before aging. Furthermore, the 50% mentioned here is merely an example and should not be construed as a limitation of this application.

[0038] It should be noted that when O A <O B In this case, based on the preset initial threshold, the target function execution threshold can be reduced by ΔW all at once, or it can be reduced by ΔW in multiple stages. For example, the target function execution threshold can be reduced by ΔW twice. Specifically, in one embodiment, when the sensitivity of the first pressure sensor 2 decreases to 50% of the initial sensitivity, the target function execution threshold is first reduced by ΔW / 2, and then further reduced by ΔW / 2, so as to gradually reduce the target function execution threshold by ΔW multiple times. It should be noted that ΔW will vary depending on the degree of aging of the first pressure sensor 2. This is only an example and should not be construed as a limitation of this application. Definitions: W0 is the preset initial threshold, which is set according to the sensitivity of the sensor and is a preset value. Different sensors have different initial thresholds; W is the target function execution threshold; ΔW is the difference, that is, ΔW is the amount by which the target function execution threshold is reduced relative to the preset initial threshold.

[0039] Specifically, the logic of the controller controlling the operation of electronic devices is as follows: in O A +O B When W ≥ W, a control signal is output, which is used to control the electronic device to perform the target function; when O A ≥O B When W = W0, W0 > 0; when O A <O B When W decreases, the amount of decrease is ΔW, W = W0 - ΔW, 0 < ΔW < W0.

[0040] During operation, when the sensitivity of the first pressure sensor 2 does not decrease significantly (meaning the sensitivity is normal or slightly decreased within the allowable error range), that is, when the first sensing output value of the first pressure sensor 2 is O... A ≥Second sensing output value O of second pressure sensor 4 B If the target function execution threshold W remains unchanged, the value of the target function execution threshold W is the preset initial threshold W0, and the controller can output control signals (control commands) normally; however, when the sensitivity of the first pressure sensor 2 decreases significantly, i.e., the first sensing output value O of the first pressure sensor 2 decreases... A <Second sensing output value O of the second pressure sensor 4 B If the target function execution threshold W is adjusted, the target function execution threshold W will be reduced by a difference ΔW (the reduction of the target function execution threshold relative to the preset initial threshold). At this time, the target function execution threshold W is adjusted to (W0-ΔW), so that the controller can still output control signals normally. It can be seen that this electronic device sets two pressure sensors. When the sensitivity of the first pressure sensor 2 decreases significantly, the target function execution threshold W is adjusted to reduce the target function execution threshold W by ΔW, so that the controller can still output control signals and thus control the electronic device to execute the target function.

[0041] Furthermore, as a preferred embodiment of this example, such as Figure 1 As shown, the electronic device also includes a first substrate 1, a first pressure sensor 2 connected to the first substrate 1, a side surface of the first substrate 1 facing away from the first pressure sensor 2 for receiving external pressure, and the first pressure sensor 2 and the second pressure sensor 4 for responding to the pressure received by the first substrate 1; the controller is electrically connected to the first pressure sensor 2 and the second pressure sensor 4 respectively.

[0042] In this embodiment, pressure is applied to the first substrate 1, and the first pressure sensor 2 and the second pressure sensor 4 collect pressure signals. The pressure can be applied perpendicularly to the first substrate 1 or at an angle to it. In actual use, the force is more often applied perpendicularly to the first substrate 1. After collecting the pressure, the first pressure sensor 2 and the second pressure sensor 4 respectively output a first sensing output value O to the controller. A Second sensor output value O B When the sensitivity of the second pressure sensor 4 is normal and the sensitivity of the first pressure sensor 2 is normal or not significantly reduced, i.e., the first sensing output value of the first pressure sensor 2 is O A ≥Second sensing output value O of second pressure sensor 4 BThe target function execution threshold W of the controller remains unchanged, and its target function execution threshold W is the preset initial threshold W0. The controller can output control signals normally. When the sensitivity of the first pressure sensor 2 decreases significantly, that is, when the first sensing output value O of the first pressure sensor 2 decreases... A <Second sensing output value O of the second pressure sensor 4 B If the target function execution threshold W is adjusted, the target function execution threshold W will be reduced by the difference (the reduction of the target function execution threshold relative to the preset initial threshold) ΔW. At this time, the target function execution threshold W is adjusted to (W0-ΔW), so that the controller can still output control signals normally. The control signals are used to control the electronic equipment to execute the target function.

[0043] Specifically, in the control method of the controller provided in the embodiments of the invention:

[0044] S101, Obtain the first sensing output value O of the first pressure sensor 2. A .

[0045] In this embodiment, the first pressure sensor 2 is used to collect pressure signals; the first pressure sensor 2 converts the collected pressure signals into a first sensing output value O. A .

[0046] During long-term use, the first pressure sensor 2 is prone to aging, resulting in a decrease in its sensitivity. This leads to a decrease in the first sensing output value O after the first pressure sensor 2 acquires the same pressure signal. A A decline occurred.

[0047] S102, Obtain the second sensing output value O of the second pressure sensor 4. B .

[0048] In this embodiment, since the second pressure sensor 4 and the first pressure sensor 2 are stacked, the pressure collected by the second pressure sensor 4 is the same as or slightly lower than the pressure collected by the first pressure sensor 2 based on the same pressure (because there is a certain loss during force transmission); the second pressure sensor 4 is a reference sensor, and its sensitivity does not decrease or remains relatively stable; the second pressure sensor 4 converts the collected pressure signal into a second inductive output value O. B .

[0049] In practical applications, the second pressure sensor 4 can be used as a reference sensor in the following ways: protective measures are taken for the second pressure sensor 4. In this embodiment, the protective measures adopted are to set the second pressure sensor 4 away from the first substrate 1 to protect the second pressure sensor 4.

[0050] The control principle of this scheme is as follows: in O A +O B When the value is ≥W, the controller outputs a control signal, which is used to execute the target function. The electronic device in this application can be headphones, mobile phones, tablets, computers, smartwatches, smart bracelets, cars, ships, televisions, refrigerators, washing machines, or air conditioners, etc. The target function can be volume up / down, ANC switch, play / pause, wind noise reduction switch, power switch, previous / next track, cooling / heating, or temperature adjustment, etc. Specifically, the target functions of cooling / heating and temperature adjustment correspond to air conditioning equipment; the target functions corresponding to headphones include volume up / down, ANC switch, play / pause, wind noise reduction switch, power switch, or previous / next track, etc.

[0051] Specifically, the first sensor output value O A Second sensor output value O B The sum of these values ​​is greater than the controller's target function execution threshold W; or, the first sensor output value O... A Second sensor output value O B When the sum of these two values ​​equals the target function execution threshold W of the controller, both cases will cause the controller to output a control signal, thereby controlling the electronic device to execute the target function.

[0052] S103, when O A ≥O B When W = W0, W > 0, that is, when O A ≥O B And O A +O B When W ≥ 0, a control signal is output to control the electronic device to perform the target function.

[0053] Specifically, when the first sensing output value O of the first pressure sensor 2 A ≥Second sensing output value O of second pressure sensor 4 B In this case, the target function execution threshold W remains unchanged, and the target function execution threshold W is the preset initial threshold W0; that is, when the sensitivity of the first pressure sensor 2 is normal or does not decrease significantly, the first sensing output value O of the first pressure sensor 2 is... A ≥Second sensing output value O of second pressure sensor 4 B The controller can output control signals normally without adjusting the target function execution threshold.

[0054] S104, when O A <O B When W decreases, the decrease is ΔW, W = W0 - ΔW, 0 < ΔW < W0, that is, when O A <OB And O A +O B When the value is greater than or equal to W0-ΔW, a control signal is output to control the electronic device to perform the target function.

[0055] Specifically, when the sensitivity of the first pressure sensor 2 decreases significantly, the first pressure sensor 2 outputs a first sensing value O based on the same pressure. A It will decrease, the first sensing output value O of the first pressure sensor 2 A <Second sensing output value O of the second pressure sensor 4 B In this case, the target function execution threshold needs to be adjusted accordingly to reduce the target function execution threshold compared to the preset initial threshold. The reduction amount is the difference ΔW, i.e., W = W0 - ΔW. In other words, when the sensitivity of the first pressure sensor 2 decreases, the controller adjusts the target function execution threshold to reduce the first sensing output value O. A Second sensor output value O B If the sum is greater than or equal to the adjusted target function execution threshold W, the controller can still output control signals to control the electronic device to execute the target function.

[0056] It should be noted that the sequence numbers S101, S102, S103, and S104 in this method are for descriptive convenience only and should not be interpreted as a restriction on the order of execution.

[0057] The beneficial effects of this embodiment are as follows: Compared with the prior art which only has one pressure sensor, and whose output value cannot reach the target function execution threshold when the sensitivity of the pressure sensor drops significantly, thus preventing the controller from outputting a control signal, this electronic device sets up two stacked first pressure sensors 2 and second pressure sensors 4. When the sensitivity of the first pressure sensor 2 does not drop significantly, the target function execution threshold W does not change, and its target function execution threshold W is the preset initial threshold W0, and the controller can output control signals (control commands) normally. When the sensitivity of the first pressure sensor 2 drops significantly, the target function execution threshold W is adjusted to reduce the target function execution threshold W by ΔW, so that the controller can still output control signals and control the electronic device to execute the target function.

[0058] Furthermore, as a preferred embodiment of this example, ΔW varies with (O) B -O A The increase is due to the increase of ) or ΔW and (O) B -O A They are positively correlated.

[0059] It should be noted that positive correlation means that as the independent variable increases, the dependent variable also increases; the two variables change in the same direction—when one variable changes from small to large, the other variable also changes from small to large—and the slope of the tangent line to their data curve or line is always greater than zero. In this scheme, (O B -O A When ΔW changes from small to large, ΔW also changes from small to large. B -O A When ΔW is the x-axis and ΔW is the y-axis, the slope of the tangent line of the resulting data curve or straight line is always greater than zero.

[0060] Specifically, as the sensitivity of the first pressure sensor 2 continuously decreases, the first sensing output value O based on the same pressure... A The size will continuously decrease, that is, the second sensor output value O B With the first sensing output value O A The difference between the two values ​​increases continuously; therefore, the target function execution threshold will be adjusted based on the second sensor output value O. B With the first sensing output value O A The difference is adjusted accordingly, that is, the reduction of the target function execution threshold relative to the preset initial threshold increases as the difference between the second sensor output value and the first sensor output value increases, so that the sum of the first sensor output value and the second sensor output value remains greater than or equal to the target function execution threshold, thereby ensuring that external signals can trigger control commands and execute the target function.

[0061] Furthermore, as a preferred embodiment of this example, even further, ΔW and (O B -O A The relationship can be expressed as ΔW = O. B -O A ; or ΔW=k(O B -O A )+b, k>0; or ΔW=(O B -O A ) / 2; or ΔW=(O B -O A ) 2 O B -O A >0.

[0062] Preferably, ΔW = 0 B -O A Specifically, the decrease in the target function execution threshold relative to the preset initial threshold is equal to the decrease in the first sensor output value relative to the second sensor output value. The target function execution threshold changes as the difference between the second sensor output value and the first sensor output value changes.

[0063] Furthermore, as a preferred embodiment of this example, when O B -O A When W > 1 / 2W0, W = 1 / 2W0.

[0064] Specifically, in practical applications, the target function execution threshold has a lower limit. When the difference between the second sensor output value and the first sensor output value is less than or equal to half of the preset initial threshold, i.e., O... B -O A When ≤1 / 2W0, in this case, ΔW=0 B -O A The target function execution threshold is greater than or equal to half of the preset initial threshold. The target function execution threshold changes with the difference between the second sensing output value and the first sensing output value. When the sensitivity of the first pressure sensor 2 decreases to a certain level, that is, when the difference between the second sensing output value and the first sensing output value is greater than half of the preset initial threshold, i.e., O... B -O A >1 / 2W0, it can be said that the first pressure sensor 2 can no longer be used. At this time, the target function execution threshold is half of the preset initial threshold, and the target function execution threshold no longer changes with the difference between the second sensing output value and the first sensing output value.

[0065] In this application, the target function execution threshold W is not less than 1 / 2W0. The purpose is to prevent the first pressure sensor 2 from completely failing, causing the target function execution threshold W to drop indefinitely, and to ensure the reliable operation of the entire system.

[0066] Furthermore, as a preferred embodiment of this invention, the electronic device further includes an insulating layer 3, which is located between the first pressure sensor 2 and the second pressure sensor 4. The insulating layer 3 is an insulating layer made of a flexible polymer material.

[0067] In this embodiment, the purpose of providing the insulating layer 3 is to ensure that the signals received by the first pressure sensor 2 and the second pressure sensor 4 do not interfere with each other, while minimizing the impact on pressure transmission, making the sensitivity of the second pressure sensor 4 more stable, and under normal circumstances, the sensitivity of the second pressure sensor 4 is not prone to significant changes.

[0068] Furthermore, in a preferred embodiment of this invention, the electronic device further includes a first substrate 1, a first pressure sensor 2 connected to the first substrate 1, and a side of the first substrate 1 facing away from the first pressure sensor 2 for receiving external pressure. The first pressure sensor 2 and a second pressure sensor 4 are used to respond to the pressure received by the first substrate 1. The second pressure sensor 4 is positioned away from the first substrate 1, making its sensitivity more stable than that of the first pressure sensor 2. The first substrate 1 is the outer casing of the electronic device, the first pressure sensor 2 is connected to the inner surface of the casing, and the second pressure sensor 4 is positioned away from the casing. The location where the casing connects to the first pressure sensor 2 can be an elastic casing, which is used to receive pressure. This location can be a button position on the casing of an earphone, such as a button or touchscreen, which requires pressure to trigger an action. This design facilitates pressure transmission and is beneficial for sensor signal acquisition.

[0069] In this embodiment, when the electronic device is an earphone, the first substrate 1 is the earphone shell. The shell can be used to mount and fix the first pressure sensor 2 and the second pressure sensor 4, and to receive external pressure. The surface of the shell facing away from the first pressure sensor 2 is the force-bearing surface, and the pressure can be directly applied to this surface, so that the first pressure sensor 2 and the second pressure sensor 4 can collect pressure signals. In addition, the first substrate 1, the first pressure sensor 2, the insulating layer 3 and the second pressure sensor 4 are stacked in sequence, so that the first pressure sensor 2 and the second pressure sensor 4 can collect pressure data more accurately.

[0070] Furthermore, as a preferred embodiment of this invention, the electronic device further includes a second substrate 5 connected to the second pressure sensor 4, the second substrate 5 being located on the side opposite to the first pressure sensor 2; the first substrate 1, the first pressure sensor 2, the insulating layer 3, the second pressure sensor 4, and the second substrate 5 are stacked sequentially.

[0071] In this embodiment, the second pressure sensor 4 is disposed on the second substrate 5. The second substrate 5 provides support and protection for the second pressure sensor 4, making it less susceptible to direct external pressure and ensuring the sensitivity of the second pressure sensor 4. This makes it easier for the sensitivity of the second pressure sensor 4 to meet the standard of the reference sensor.

[0072] The solution of this application will be further described below with reference to specific embodiments.

[0073] The electronic device of this embodiment can acquire pressure signals. The electronic device includes a controller and a first pressure sensor 2, an insulating layer 3, a second pressure sensor 4, and a second substrate 5, which are stacked sequentially. The first pressure sensor 2 is mounted close to the outer casing and located inside the casing. The first pressure sensor 2 and the second pressure sensor 4 are pressure sensors of the same model and specifications. The insulating layer 3 is a flexible insulating layer made of polymer material. The purpose of setting the flexible insulating layer is to ensure that the electrical signals received by the two sensors (the first pressure sensor 2 and the second pressure sensor 4) do not interfere with each other, while minimizing the impact on pressure transmission. This electronic device has two pressure sensors, which reduces the risk of a single sensor failure compared to a single pressure sensor, while ensuring that the sensitivity of the feedback system remains at a reasonable and stable level. This electronic device has higher sensitivity.

[0074] The control method of this electronic device is as follows: the first sensing output value O of the first pressure sensor 2 is... A The second sensing output value O is greater than or equal to that of the second pressure sensor 4. B O A +O B If W ≥ 0, then a control signal is output to control the electronic device to perform the target function, i.e., the first sensor output value O. A Second sensor output value O B The sum of these values ​​is greater than the controller's preset initial threshold W0; or, the first sensor output value O... A Second sensor output value O B When the sum of the two values ​​equals the controller's preset initial threshold W0, both cases will cause the controller to output a control signal, thereby controlling the electronic device to perform the target function.

[0075] When the electronic system is affected by environmental changes, structural deformation, and wear and tear caused by prolonged use, the first pressure sensor 2, as the main sensor, may experience a decrease in sensitivity or even malfunction due to its proximity to the outer casing. When the sensitivity of the first pressure sensor 2 decreases significantly, the first sensing output value O of the first pressure sensor 2 will... A The second sensing output value O is less than that of the second pressure sensor 4. B To ensure the controller can successfully execute the target function and still trigger commands after the sensitivity of the first pressure sensor 2 decreases, the following control method is adopted: In the initial state, the preset initial threshold of the electronic device is W0, and the minimum trigger pressure is set to F0. When the sensitivity of the first pressure sensor 2 decreases significantly (i.e., when O...), the controller can trigger commands. A <O B After (time), under the same minimum trigger pressure F0, the first sensing output value O A With the second sensor output value OB The sum will be less than the preset initial threshold, and the controller cannot output a control instruction. The solution is to correspondingly decrease the target function execution threshold W, making W < W0. The decrease amount (difference) of W is ΔW, ΔW = W0 - W, so that the first induction output value O A and the second induction output value O B The sum is greater than the adjusted target function execution threshold W, enabling the controller to still output a control signal to control the electronic device to execute the target function.

[0076] During the actual application process, since the second pressure sensor 4 is installed inside the structure away from the outer shell and is protected by the insulating layer 3, its sensitivity can be considered more stable and not likely to change significantly. When the first induction output value O A of the first pressure sensor 2 is less than the second induction output value O B of the second pressure sensor 4, it is determined that the sensitivity of the first pressure sensor 2 has decreased significantly. At this time, the target function execution threshold W of the electronic device should be decreased, and the difference ΔW = O B - O A , then the target function execution threshold W = W0 - (O B - O A ).

[0077] Finally, to prevent the first pressure sensor 2 from completely failing and causing the target function execution threshold W to decrease without limit, and to ensure the reliable operation of the entire system, it is set that the target function execution threshold W is not less than 1 / 2W0. That is, when O B - O A > 1 / 2W0, W = 1 / 2W0; when O B - O A ≤ 1 / 2W0, ΔW = O B - O A .

[0078] Compared with the prior art where only one pressure sensor is provided, when the sensitivity of the pressure sensor decreases significantly, the induction output value cannot reach the target function execution threshold and the controller cannot output a control signal. In contrast, by setting two pressure sensors in this electronic device, when the sensitivity of the first pressure sensor 2 decreases significantly, the target function execution threshold W is adjusted to decrease, so that the controller can still output a control signal and then control the electronic device to execute the target function.

[0079] The above description is merely a preferred embodiment of the present invention and only specifically describes the technical principles of the present invention. These descriptions are only for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present invention.

Claims

1. An electronic device, characterized in that, The device includes at least a controller, a first pressure sensor, and a second pressure sensor; the first pressure sensor and the second pressure sensor are stacked; the electronic device also includes a first substrate; the first pressure sensor is connected to the first substrate; the surface of the first substrate facing away from the first pressure sensor is used to receive external pressure; the first pressure sensor and the second pressure sensor are used to respond to the pressure received by the first substrate; the external pressure received by the first pressure sensor is attenuated and then transmitted to the second pressure sensor; the aging rate of the first pressure sensor is greater than the aging rate of the second pressure sensor. In the initial state, the first sensing output value O of the first pressure sensor A The second sensing output value O of the second pressure sensor is greater than or equal to the second sensing output value of the second pressure sensor. B The controller is electrically connected to the first pressure sensor and the second pressure sensor, respectively. The controller is used for: When the first pressure sensor is subjected to pressure, the first sensing output value O of the first pressure sensor is acquired. A And obtain the second sensing output value O of the second pressure sensor. B ; According to O A and O B The relative magnitude of the values ​​determines the aging degree of the first pressure sensor, and the target function execution threshold of the electronic device is lowered based on the aging degree of the first pressure sensor; the target function execution threshold is the threshold required for the electronic device to perform the target function. A and O B The value corresponding to the given condition is reached; According to O A and O B The relative magnitude of the values ​​determines the aging degree of the first pressure sensor, and the target function execution threshold of the electronic device is lowered based on the aging degree of the first pressure sensor, including: When O A ≥O B At that time, the target function execution threshold is a preset initial threshold; When O A <O B At that time, based on the preset initial threshold, the target function execution threshold is reduced by the difference ΔW; The controller is also used for: When O A +O B The electronic device is triggered to execute the target function when the threshold value is greater than or equal to the target function execution threshold.

2. The electronic device as described in claim 1, characterized in that, The electronic device further includes an insulating layer located between the first pressure sensor and the second pressure sensor.

3. An electronic device as described in claim 2, characterized in that, The electronic device further includes a second substrate connected to the second pressure sensor, the second substrate being located on the side of the second pressure sensor opposite to the first pressure sensor; the first substrate, the first pressure sensor, the insulating layer, the second pressure sensor, and the second substrate are stacked in sequence.

4. An electronic device as described in claim 1, characterized in that, The first pressure sensor and the second pressure sensor are sensors of the same model and specifications.

5. An electronic device as described in claim 1, characterized in that, The electronic devices include headphones, mobile phones, tablets, computers, smartwatches, or smart bracelets.

6. An electronic device as described in claim 1, characterized in that, ΔW follows O B -O A It increases with the increase of.

7. An electronic device as described in claim 6, characterized in that, ΔW= O B -THE A .

8. An electronic device as described in claim 1, characterized in that, When O B -O A When the value is greater than half of the preset initial threshold, the target function execution threshold is half of the preset initial threshold.

Images