Electronic device and vehicle

By using electronic devices in the piezoelectric component, sensing circuit, and processing unit, the signal generated by the piezoelectric component is directly processed, and processed signals of different states are output. This solves the problem of traditional equipment control relying on mobile terminals, and realizes efficient and accurate vibration event sensing and processing without the need for mobile terminals.

CN223672438UActive Publication Date: 2025-12-16SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING CO LTD
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Patent Information

Application Number
CN202423323366.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-11-27
Filing Date
2024-12-31
Publication Date
2025-12-16
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Traditional device control methods require users to carry mobile devices, which makes it impossible to control the device if the user forgets to bring the mobile device. In addition, they have problems such as insufficient anti-interference ability and high processing complexity.

Method used

It employs electronic devices including piezoelectric components, sensing circuits, and processing units. The raw signals generated by the piezoelectric components are directly processed by the sensing circuits to generate control commands. The processing signals of different states are output using switching circuits, and the sensing sensitivity and anti-interference capability are improved by combining voltage divider and amplification circuits.

Benefits of technology

It enables accurate perception and processing of vibration events without the need for mobile terminals, reduces the complexity and power consumption of processing algorithms, improves anti-interference ability and perception accuracy, and expands the scope of application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electronic device and a vehicle, the electronic device comprises at least one piezoelectric assembly, a sensing circuit and a processing unit, and the at least one piezoelectric assembly is electrically connected with the processing unit through the sensing circuit; wherein the at least one piezoelectric component is configured to sense a vibration event and generate an original signal; the sensing circuit is configured to process the original signal to generate a processed signal; the processing signal is a pulse signal; the processing unit is configured to generate a control instruction based on the processing signal.
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Description

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202411728975.6, filed on November 27, 2024, entitled "Sensing Method, System, Electronic Device, Vehicle, Storage Medium and Program Product", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to, but is not limited to, the field of sensing circuits, and in particular to an electronic device and a vehicle. Background Technology

[0004] With the continuous development of technology, intelligent control technology has been widely applied in various fields. Traditional methods of controlling equipment may require users to carry mobile devices, and if users forget to bring their mobile devices, they cannot control the equipment. Summary of the Invention

[0005] One embodiment of this application provides an electronic device comprising at least one piezoelectric component, a sensing circuit, and a processing unit. The sensing circuit processes the raw signal generated by the at least one piezoelectric component sensing a vibration event, causing the processing unit to generate a responsive control command, thereby realizing the sensing and processing of the vibration event. Because the raw signal is processed directly through the sensing circuit, the anti-interference capability of the electronic device is improved.

[0006] Another embodiment of this application provides an electronic device in which the sensing circuit includes a switching circuit. The switching circuit outputs the original signal as a processing signal of a first state or a processing signal of a second state, eliminating the need for processing steps such as sampling and analysis, thereby reducing the complexity of the processing algorithm, improving processing efficiency and reducing power consumption.

[0007] Another embodiment of this application provides an electronic device in which the sensing circuit includes a voltage divider circuit and / or an amplifier circuit, thereby improving the sensing sensitivity of the electronic device to vibration events.

[0008] Another embodiment of this application provides an electronic device in which the voltage division ratio of the voltage divider circuit and / or the amplification ratio of the amplifier circuit in the sensing circuit can be flexibly adjusted. In this way, it can respond to different types of vibration events, which is beneficial to improving the sensing accuracy of the electronic device and expanding the application range of the electronic device.

[0009] Another embodiment of the present application provides an electronic device, wherein the amplification circuit comprises a proportional operational amplifier, a first resistor, a second resistor and a third resistor. The proportional operational amplifier in the amplification circuit can amplify the signal and enhance the sensing capability of the sensing circuit to the signal. The second resistor and the third resistor are connected to the second input terminal of the proportional operational amplifier. By changing the resistance of at least one of the second resistor and the third resistor, the amplification factor of the operational amplifier can be changed, thereby meeting the vibration sensing requirements in different scenarios.

[0010] Another embodiment of the present application provides an electronic device, wherein the operational amplifier is connected with a first capacitor, and the first capacitor can be used to filter the amplification circuit and improve the stability of the circuit.

[0011] Another embodiment of the present application provides an electronic device, wherein when the processing unit determines at least two control instructions corresponding to the vibration event based on the processing signal, the processing unit can further extract the amplitude feature of the vibration event based on the input signal of the switching circuit, and use the extracted amplitude feature as a judgment basis to further refine the judgment of the event type and improve the recognition accuracy.

[0012] Another embodiment of the present application provides an electronic device, wherein the voltage dividing circuit comprises a fourth resistor and a fifth resistor. By changing the resistance of at least one of the fourth resistor and the fifth resistor, the resistance of the voltage dividing circuit can be changed, and then the reduction factor of the voltage signal in the voltage dividing circuit can be changed. Therefore, by flexibly setting the resistance of the fourth resistor and the fifth resistor, the vibration sensing requirement can be met.

[0013] Another embodiment of the present application provides an electronic device, wherein the first proportion can be determined based on the amplitude of the accidental touch signal and the critical amplitude value converted by the processing signal, thereby facilitating the filtering of touch behaviors that are not subjective intentions and reducing the situation of responding to accidental touch signals. Moreover, this filtering process relies on the hardware capability of the amplification circuit, without the intervention of algorithms, thereby improving the anti-interference capability.

[0014] To achieve at least one of the above purposes, the technical solutions of the embodiments of the present application are as follows:

[0015] In a first aspect, the embodiments of the present application provide an electronic device, wherein the electronic device comprises at least one piezoelectric component, a sensing circuit and a processing unit, the at least one piezoelectric component is electrically connected with the processing unit through the sensing circuit; wherein: the at least one piezoelectric component is configured to sense a vibration event and generate an original signal; the sensing circuit is configured to process the original signal to generate a processing signal; the processing signal is a pulse signal; and the processing unit is configured to generate a control instruction based on the processing signal.

[0016] In a second aspect, the embodiments of the present application provide a vehicle, comprising: a vehicle body including a plurality of vehicle body panels, a plurality of interior trim pieces, and a vehicle component connected with the vehicle body panels and / or the interior trim pieces; the electronic device as described in the above embodiments, the electronic device being arranged on at least one of the vehicle body panels, the interior trim pieces, and the vehicle component.

[0017] It should be understood that the general description above and the detailed description below are only exemplary and explanatory, rather than limiting the technical solutions of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and serve to explain the technical solutions of the present application together with the specification.

[0019] Figure 1 A schematic diagram of an electronic device provided by the embodiments of the present application;

[0020] Figure 2 A schematic diagram of an electronic device provided by the embodiments of the present application;

[0021] Figure 3A A schematic diagram of an electronic device provided by the embodiments of the present application;

[0022] Figure 3B A schematic diagram of an electronic device provided by the embodiments of the present application;

[0023] Figure 4 A schematic diagram of an electronic device provided by the embodiments of the present application;

[0024] Figure 5 A schematic diagram of an amplification circuit provided by the embodiments of the present application;

[0025] Figure 6 A schematic diagram of an amplification circuit provided by the embodiments of the present application;

[0026] Figure 7 A schematic diagram of a voltage division circuit provided by the embodiments of the present application;

[0027] Figure 8 A structural schematic diagram of a perception system provided by the embodiments of the present application;

[0028] Figure 9 A side view of a vehicle provided by the embodiments of the present application, the vehicle being installed with the perception system;

[0029] Figure 10 A structural schematic diagram of a vehicle provided by the embodiments of the present application. DETAILED DESCRIPTION

[0030] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions of the present application are further described in detail below in combination with the drawings and embodiments, and the described embodiments should not be regarded as limitations of the present application. All other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] In the following description, "some embodiments" are referred to, which describe a subset of all possible embodiments, but it can be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict. The term "first / second / third" referred to is only to distinguish similar objects, and does not represent a specific order of the objects. It can be understood that "first / second / third" can be interchanged in a specific order or sequence as allowed, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used herein are only for the purpose of describing the present application and are not intended to limit the present application.

[0033] Figure 1 A schematic structural diagram of an electronic device is provided for the embodiments of the present application. As shown in Figure 1 The electronic device includes at least one piezoelectric component 10, a sensing circuit 20 and a processing unit 30, the at least one piezoelectric component 10 is electrically connected with the processing unit 30 through the sensing circuit 20; wherein:

[0034] The at least one piezoelectric component 10 is configured to sense a vibration event and generate a raw signal.

[0035] It should be noted that the piezoelectric component 10 can generate an electric current through deformation by using the piezoelectric effect, i.e., the piezoelectric component 10 generates a raw signal in response to a vibration event. Exemplarily, the raw signal can be an electric signal without modulation and processing.

[0036] In some embodiments, the number of piezoelectric components in the at least one piezoelectric component 10 can be one or more. The types, structures, sizes, distribution positions and connection interfaces with the processing unit 30 of the plurality of piezoelectric components 10 can be the same or different, and the embodiments of the present application do not limit this.

[0037] The sensing circuit 20 is configured to process the raw signal to generate a processing signal; the processing signal is a pulse signal.

[0038] In some embodiments, the processing of the original signal comprises at least one of waveform transformation and amplitude identification.

[0039] In some embodiments, the processing of the original signal can comprise waveform transformation, which is a process of transforming the waveform of the input signal into another form. There are differences in the waveforms between the original signal and the processed signal after waveform transformation.

[0040] The waveform of the processed signal is a waveform that facilitates the extraction of signal features. Exemplarily, the waveform of the processed signal can be a rectangular wave (square wave), a triangular wave, a pulse wave, etc.

[0041] In some embodiments, the amplitude identification is a different type of adjustment process based on the amplitude of the input signal. The amplitude of the input signal can be the numerical value at a moment or the numerical value within a time period, which is used to represent the intensity / energy level of the signal.

[0042] Exemplarily, when the amplitude of the input signal is in a first amplitude interval, a first type of adjustment process is performed; when the amplitude of the input signal is in a second amplitude interval, a second type of adjustment process is performed; the first amplitude interval and the second amplitude interval have no intersection.

[0043] In order to facilitate the generation of control instructions based on the generated processed signal, the waveform transformation and the amplitude identification are used to transform the waveform of the original signal into a waveform that facilitates the identification of signal features.

[0044] In some embodiments, the processing of the original signal can comprise both waveform transformation and amplitude identification. The waveform transformation can be performed before the amplitude identification, or the amplitude identification can be performed before the waveform transformation. Alternatively, the waveform transformation and the amplitude identification can be performed simultaneously, that is, a circuit can simultaneously implement both the waveform transformation and the amplitude identification.

[0045] It should be noted that the waveform transformation and the amplitude identification are both implemented by the perception circuit 20.

[0046] The processing unit 30 is configured to generate a control instruction based on the processed signal.

[0047] In the embodiments of the present application, the processing unit 30 can further analyze and process the processed signal to generate a control instruction.

[0048] For example, taking the sensing method applied to a vehicle, the control commands may include wake-up commands to activate the vehicle's human-machine interaction functions. The control commands may also include unlocking commands for vehicle doors, control commands for vehicle components, etc., which are not limited in this embodiment. In other embodiments, the processing unit is configured to analyze the signal output by the sensing circuit to identify the type or source of vibration sensed by the piezoelectric component.

[0049] Based on the embodiments provided in this application, the raw signal generated by at least one piezoelectric component sensing a vibration event is processed by a sensing circuit, so that the processing unit generates a responsive control command, thereby realizing the sensing and processing of the vibration event. Since the raw signal is processed directly through the sensing circuit, the anti-interference capability of the electronic device is improved.

[0050] Figure 2 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 2 As shown, the signal states of the processed signal include a first state and a second state, and the sensing circuit 20 includes a switching circuit 21; the switching circuit 21 is used to control the output of the processed signal of the first state or the processed signal of the second state; the processed signal of the first state is different from the processed signal of the second state.

[0051] The aforementioned processing signals may include processing signals in a first state and processing signals in a second state. From a time domain perspective, processing signals at different times may be in the same state or different states; at any given moment, a processing signal can only be in either the first state or the second state.

[0052] The processing signal in the first state differs from that in the second state. For example, the processing signal in the first state and the processing signal in the second state differ significantly in characteristics such as voltage or current levels. Based on this, in the subsequent process of generating control commands based on the processing signals, the information carried in the original signal can be accurately interpreted by distinguishing between these two signal states, thereby determining the control commands to be generated.

[0053] In some implementation scenarios, the first state is the state of the processing signal when there is a mis-touch or no vibration event, and the second state is the state of the processing signal when there is no mis-touch.

[0054] In some embodiments, one of the processing signal of the first state and the processing signal of the second state is a high-level signal and the other is a low-level signal.

[0055] The processing signal in the first state can be the high-level signal (e.g., Vcc), and the processing signal in the second state can be the low-level signal (e.g., 0). Alternatively, the processing signal in the first state can be the low-level signal (e.g., 0), and the processing signal in the second state can be the high-level signal (e.g., Vcc).

[0056] In some embodiments, the processing signal is a pulse signal.

[0057] The pulse signal can be a single pulse signal or a composite signal (i.e., a pulse combination signal) including multiple pulse signals.

[0058] Each single pulse signal has a clear start and end time. In the case of a pulse combination signal including multiple pulse signals, the pulse combination signal contains the arrangement order, relative position, and time relationship between the pulse signals.

[0059] In some embodiments, the pulse combination signals can be distinguished based on a first time interval, and the single pulse signals in the pulse combination signal can be distinguished based on a second time interval. The first time interval is greater than the second time interval.

[0060] In some embodiments, the control unit can be configured to extract a signal feature of the processing signal, and generate a control instruction corresponding to the signal feature based on the signal feature of the processing signal.

[0061] The signal feature can include at least one of the following: the time length of the processing signal in the first state, the time length of the processing signal in the second state, the number of occurrences of the processing signal in the first state, the number of occurrences of the processing signal in the second state, the time interval between the processing signal in the first state and the processing signal in the second state, and the number of switches between the processing signal in the first state and the processing signal in the second state.

[0062] In some embodiments, the processing signal is a pulse signal, and the signal feature of the processing signal includes at least one of the following: the width of a single pulse signal and the interval of single pulse signals. The width of a single pulse signal is the duration of the single pulse signal, and the interval of single pulse signals is the time interval between adjacent pulse signals.

[0063] In some embodiments, in the case that the processing signal in the first state is a high-level signal and the processing signal in the second state is a low-level signal, the single pulse signal in the pulse combination signal can be the processing signal in the first state; accordingly, the width of the single pulse signal can be the duration of the single processing signal in the first state; the interval of the single pulse signal can be the time interval between two adjacent processing signals in the first state, or the duration of the single processing signal in the second state.

[0064] In some other embodiments, in the case that the processing signal in the second state is a high-level signal and the processing signal in the first state is a low-level signal, the single pulse signal in the pulse combination signal can be the processing signal in the second state; accordingly, the width of the single pulse signal can be the duration of the single processing signal in the second state; the interval of the single pulse signal can be the time interval between two adjacent processing signals in the second state, or the duration of the single processing signal in the first state.

[0065] In some embodiments, the signal characteristics of the processing signal can further include the signal width of the pulse combination signal; wherein the signal width of the pulse combination signal can be understood as the sum of the widths of the single pulse signals in the pulse combination signal; the signal width of the pulse combination signal can also be understood as the sum of the intervals of the single pulse signals in the pulse combination signal; the signal width of the pulse combination signal can also be understood as the sum of the widths of the single pulse signals and the intervals of the single pulse signals in the pulse combination signal, at this time, the characteristic can be the overall length of the processing signal, i.e. the duration of the tapping event.

[0066] In the above embodiments provided in the present application, the original signal generated by the piezoelectric component is converted into a pulse signal by the sensing circuit, so that the subsequent processing unit can extract the signal characteristics of the processing signal, and generate the corresponding control instruction based on the extracted signal characteristics; at the same time, the pulse signal can better resist external interference during transmission, and improve the stability and reliability of the signal.

[0067] In some embodiments, the sensing circuit 20 can only include the switching circuit 21.

[0068] In some other embodiments, the sensing circuit 20 can include the switching circuit 21 and the rest of the sensing circuit 20. Wherein the rest of the sensing circuit 20 is other circuits excluding the switching circuit 21, such as a voltage dividing circuit, an amplifying circuit, a voltage stabilizing circuit, etc.

[0069] In some embodiments, the switch circuit 21 can include a control end, a first end and a second end. The control end of the switch circuit 21 is connected with the at least one piezoelectric component 10, or the control end of the switch circuit 21 is connected with the rest of the sensing circuit 20. The first end of the switch circuit 21 is connected with the processing unit 30 as the output end of the sensing circuit 20. The second end of the switch circuit 21 is grounded, and the first end of the switch circuit 21 is connected with the first voltage source; or the first end of the switch circuit 21 is grounded, and the second end of the switch circuit 21 is connected with the first voltage source.

[0070] The switch circuit 21 has a threshold voltage, and the switch circuit 21 is configured to output the processing signal in the first state or the processing signal in the second state based on the voltage of the input signal and the threshold voltage.

[0071] In some embodiments, the first end and the second end of the switch circuit 21 are connected in the case where the voltage of the input signal is greater than or equal to the threshold voltage, and the first end and the second end of the switch circuit 21 are disconnected in the case where the voltage of the input signal is less than the threshold voltage.

[0072] In the case where the first end and the second end of the switch circuit 21 are connected, the switch circuit 21 outputs the processing signal with the first level (e.g. 0) in the case where the second end of the switch circuit 21 is grounded and the first end of the switch circuit 21 is connected with the first voltage source, and the switch circuit 21 outputs the processing signal with the second level (e.g. Vcc) in the case where the first end of the switch circuit 21 is grounded and the second end of the switch circuit 21 is connected with the first voltage source.

[0073] In the case where the first end and the second end of the switch circuit 21 are disconnected, the switch circuit 21 outputs the processing signal with the second level (e.g. Vcc) in the case where the second end of the switch circuit 21 is grounded and the first end of the switch circuit 21 is connected with the first voltage source, and the switch circuit 21 outputs the processing signal with the first level (e.g. 0) in the case where the first end of the switch circuit 21 is grounded and the second end of the switch circuit 21 is connected with the first voltage source.

[0074] In the above embodiments, the processing signal in the first state can be the processing signal with the first level, and the processing signal in the second state can be the processing signal with the second level; or the processing signal in the first state can be the processing signal with the second level, and the processing signal in the second state can be the processing signal with the first level.

[0075] In some embodiments, the switch circuit 21 comprises a switching triode and a pull-up resistor or a pull-down resistor, wherein the switching triode has a threshold voltage, a first end of the switching triode is connected with the rest of the sensing circuit 20 as a control end of the switch circuit 21, a second end of the switching triode is connected with the processing unit 30 and a first end of the pull-up resistor or the pull-down resistor as a first end of the switch circuit 21, a third end of the switching triode is grounded as a second end of the switch circuit 21, and a second end of the pull-up resistor or the pull-down resistor is connected with a first voltage source; the switch circuit 21 is configured to control the second end of the switching triode and the third end of the switching triode based on the input signal and the threshold voltage.

[0076] Exemplarily, the threshold voltage of the switching triode comprises a threshold voltage and / or a saturation voltage. The threshold voltage refers to the minimum voltage required to be applied to the base before the triode is turned on, i.e., the minimum voltage required to make the triode transition from the cutoff state (i.e., not conducting) to the amplification state (i.e., starting to conduct). When the voltage between the base and the emitter is lower than the threshold voltage, the triode is in the cutoff state, and when the voltage between the base and the emitter is greater than the threshold voltage, the triode enters the amplification state, and the current starts to flow between the collector and the emitter. The saturation voltage refers to the voltage between the collector and the emitter when the triode works in the saturation region (i.e., the triode is fully turned on). In the saturation state, the collector current of the triode no longer changes significantly with the increase of the base current, at which time the triode has reached the maximum limit of current amplification and cannot provide more collector current.

[0077] Based on the embodiments provided in the present application, the sensing circuit comprises a switch circuit, which outputs the original signal as a processing signal in a first state or a processing signal in a second state through the switch circuit, thereby eliminating the processing steps such as sampling analysis, reducing the complexity of the processing algorithm, and facilitating the improvement of the processing efficiency and the reduction of the power consumption.

[0078] In some embodiments, in the case that the sensing circuit 20 only includes the switching circuit 21, the control end 210 of the switching circuit 21 can be connected with the at least one piezoelectric component 10 to receive the original signal generated by the at least one piezoelectric component 10, and the switching circuit 21 is configured to output the processed signal in the first state or the processed signal in the second state based on the original signal and the threshold voltage. In other embodiments, in the case that the sensing circuit 20 includes the switching circuit 21 and the rest of the sensing circuit 20, the control end 210 of the switching circuit 21 can be connected with the output end of the rest of the sensing circuit 20 to receive the output signal of the rest of the sensing circuit 20, and the switching circuit 21 is configured to output the processed signal in the first state or the processed signal in the second state based on the output signal of the rest of the sensing circuit 20 and the threshold voltage.

[0079] In some embodiments, the rest of the sensing circuit can include at least one of a voltage dividing circuit and an amplifying circuit.

[0080] In some embodiments, the output signal of the rest of the sensing circuit (or the original signal generated by the at least one piezoelectric component 10) is input to the first end T1 of the switching triode T, and a voltage is generated at the first end T1 to control the on-off state of the switching triode T, so as to change the switching state of the switching circuit 21.

[0081] In some embodiments, the switching triode has a threshold voltage, which can also be understood as a cutoff voltage of the switching triode. When the voltage of the input signal received at the control end of the switching triode is greater than or equal to the threshold voltage, the second end of the switching triode and the third end of the switching triode are controlled to be in a conductive state. When the voltage of the input signal received at the control end of the switching triode is less than the threshold voltage, the second end of the switching triode and the third end of the switching triode are controlled to be in a non-conductive state.

[0082] In the above embodiments provided in the present application, the on-off state of the switching circuit is controlled based on the input signal of the switching circuit, and the signal state of the processed signal received by the control unit is different when the on-off state of the switching circuit is different. Therefore, the control unit can determine whether the piezoelectric component detects vibration according to the signal state of the received processed signal, so as to meet the vibration sensing requirement.

[0083] Figure 3A A structural schematic diagram of an electronic device is provided for the embodiments of the present application. As shown in Figure 3AAs shown, the switch circuit 21 includes a switching triode T and a pull-up resistor R6, wherein the switching triode T has a threshold voltage, a first end T1 of the switching triode T is connected with the rest of the sensing circuit as a control end 210 of the switch circuit, a second end T2 of the switching triode T is connected with the processing unit 30 and a first end k6 of the pull-up resistor R6 as a first end 211 of the switch circuit 21, a third end T3 of the switching triode T is grounded as a second end 212 of the switch circuit 21, and a second end n6 of the pull-up resistor R6 is connected with a first voltage source; the switch circuit 21 is configured to control the second end T2 of the switching triode T and the third end T3 of the switching triode T based on the input signal and the threshold voltage.

[0084] Here, connecting the pull-up resistor R6 with one pin of the switching triode T can on one hand preset a default potential to protect the circuit from damage, and on the other hand can avoid the switching triode T from being affected by random levels and affecting the circuit operation.

[0085] In some embodiments, the switching triode T can be a triode or a Metal Oxide Semiconductor (MOS) field effect transistor. In an example, when the switching triode T is an NPN triode, the first end T1 of the switching triode T is a base, the second end T2 of the switching triode T is a collector, and the third end T3 of the switching triode T is an emitter. In an example, when the switching triode T is a PNP triode, the first end T1 of the switching triode T is a base, the second end T2 of the switching triode T is an emitter, and the third end T3 of the switching triode T is a collector. In an example, when the switching triode T is an N-type MOS field effect transistor, the first end T1 of the switching triode T is a gate, the second end T2 of the switching triode T is a drain, and the third end T3 of the switching triode T is a source. In an example, when the switching triode T is a P-type MOS field effect transistor, the first end T1 of the switching triode T is a gate, the second end T2 of the switching triode T is a source, and the third end T3 of the switching triode T is a drain.

[0086] In the embodiment, the second end T2 of the switch transistor T is connected to the first end 211 of the switch circuit 21 and the processing unit 30 and the first end k7 of the pull-down resistor R7. When the first end 211 of the switch circuit 21 receives a signal greater than or equal to the threshold voltage, the second end T2 of the switch transistor T and the third end T3 of the switch transistor T are turned on, at which time the switch circuit 211 can output a low-level signal (e.g., 0). When the first end 211 of the switch circuit 21 receives a signal less than the threshold voltage, the second end T2 of the switch transistor T and the third end T3 of the switch transistor T are turned off, at which time the switch circuit 211 can output a high-level signal (e.g., Vcc).

[0087] In some embodiments, considering that the switch transistor T is in an amplification state when receiving a signal between the threshold voltage and the saturation voltage, the switch circuit 211 can output a signal with a voltage between 0 and Vcc, which can be determined as a low-level signal.

[0088] Figure 3B An electronic device structure diagram is provided for the embodiment. As shown in Figure 3B The switch circuit 21 includes a switch transistor T and a pull-down resistor R7. The switch transistor T has a threshold voltage. The first end T1 of the switch transistor T is connected to the rest of the sensing circuit as the control end 210 of the switch circuit. The second end T2 of the switch transistor T is connected to the first end 211 of the switch circuit 21, the processing unit 30, and the first end k7 of the pull-down resistor R7. The third end T3 of the switch transistor T is connected to the first voltage source as the second end 212 of the switch circuit 21. The second end n7 of the pull-down resistor R7 is grounded. The switch circuit 21 is configured to control the on-off of the second end T2 of the switch transistor T and the third end T3 of the switch transistor T based on the input signal and the threshold voltage.

[0089] In the embodiment, the second end T2 of the switch transistor T is connected to the first end 211 of the switch circuit 21 and the processing unit 30 and the first end k7 of the pull-down resistor R7. When the first end 211 of the switch circuit 21 receives a signal greater than or equal to the threshold voltage, the second end T2 of the switch transistor T and the third end T3 of the switch transistor T are turned on, at which time the switch circuit 211 can output a low-level signal (e.g., 0). When the first end 211 of the switch circuit 21 receives a signal less than the threshold voltage, the second end T2 of the switch transistor T and the third end T3 of the switch transistor T are turned off, at which time the switch circuit 211 can output a high-level signal (e.g., Vcc).

[0090] In some embodiments, the switch circuit 211 can output a signal with a voltage between Vcc and 0, which can be determined as a high level signal, in consideration of the case that the switch triode T is in an amplification state when receiving a signal between the threshold voltage and the saturation voltage.

[0091] In some embodiments, the sensing circuit 20 comprises at least one of a voltage dividing circuit and an amplifying circuit. The voltage dividing circuit is configured to perform a second proportional voltage dividing on the input signal, and the amplifying circuit is configured to perform a first proportional amplification on the input signal.

[0092] According to the embodiments provided in the present application, the sensing circuit comprises a voltage dividing circuit and / or an amplifying circuit, which improves the sensing sensitivity of the electronic device to vibration events.

[0093] In some embodiments, the first proportion of the amplifying circuit and the second proportion of the voltage dividing circuit are adapted to each other, and the sensing sensitivity of the sensing circuit is adjusted together to adapt to the detection of a specific type of vibration event.

[0094] In some embodiments, in the case that the sensing circuit 20 further comprises a voltage dividing circuit and an amplifying circuit, the output terminal of the at least one piezoelectric component 10 can be connected to the input terminal of the voltage dividing circuit; the output terminal of the voltage dividing circuit can be connected to the input terminal of the amplifying circuit, and the output terminal of the amplifying circuit can be connected to the control terminal of the switch circuit. Alternatively, the output terminal of the at least one piezoelectric component 10 can be connected to the input terminal of the amplifying circuit; the output terminal of the amplifying circuit can be connected to the input terminal of the voltage dividing circuit, and the output terminal of the voltage dividing circuit can be connected to the control terminal of the switch circuit.

[0095] In some embodiments, the amplification of the input signal according to the first proportion is to amplify the amplitude of the input signal by a predetermined first proportion. The design of the amplifying circuit can select appropriate components and parameters according to the required amplification factor and signal characteristics. In some embodiments, the amplifying circuit can be an operational amplifier, which can be an inverting amplifier, a non-inverting amplifier or a differential amplifier.

[0096] In some embodiments, the voltage dividing according to the second proportion is to reduce the amplitude of the input signal by a predetermined second proportion. The voltage dividing circuit is usually composed of resistors and other components, and the required voltage dividing proportion can be achieved by adjusting the resistance proportion of the resistors. In some embodiments, the voltage dividing circuit can be a circuit composed of a plurality of resistors in series or in parallel, and the required voltage dividing proportion can be achieved by adjusting the resistance proportion of the resistors.

[0097] Based on the embodiments provided in the present application, by setting the amplification circuit, the signal can be amplified, and the sensing ability of the sensing circuit to the signal is enhanced; by setting the voltage dividing circuit, the voltage signal can be divided, and it is ensured that the sensing circuit is not affected by high voltage impact.

[0098] In some embodiments, the event types of the vibration events include, but are not limited to, tapping events, heavy tapping events, raining events, small object collision events, and vehicle collision events, etc. Different event types can correspond to different vibration characteristics and signal amplitudes. It can be understood that the signal amplitude of the original signal is directly related to the event type of the tapping event, and therefore, the second ratio of the voltage division can be set in advance based on the event type of the vibration event to be detected, and the second ratio is positively correlated with the vibration intensity of the vibration event. In this way, the output signal can be kept in a suitable range regardless of the change of the amplitude of the input signal, which is convenient for subsequent signal processing and analysis.

[0099] After determining the second ratio, the first ratio can be further calibrated based on the threshold voltage of the switching circuit (switching triode). The signal state of the processing signal includes a first state and a second state. The first state is the state of the processing signal when there is no vibration event or false touch. The second state is the state of the processing signal when there is no false touch. It can be understood that the calibration process of the first ratio can refer to the following scheme.

[0100] In response to a false touch event acting on the target panel and generating a false touch signal, the amplitude of the false touch signal is determined. The false touch event is generated in response to the maximum false touch force. Based on the amplitude of the false touch signal and a critical amplitude value, the first ratio is determined. The critical amplitude value is a critical value when the processing signal outputting the first state is converted to the processing signal outputting the second state.

[0101] In some embodiments, the false touch event is a case where a user or an external object unintentionally touches the target panel, so that the sensor (piezoelectric vibrator) on the panel receives an unexpected input signal. It can be understood that the false touch event is not the vibration event to be detected, but an accidental trigger that may interfere with the normal operation of the device, such as accidentally touching (stroking) the target panel, etc.

[0102] The false touch event is related to the maximum false touch force. In some embodiments, the maximum false touch force is a value preset based on the characteristics of the target panel, which is generally determined based on factors such as the target panel's installation location, material type, and usage scenario. When the external force applied to the target panel by the external party or the user reaches or exceeds the preset maximum false touch force, a false touch event is determined to have occurred, and the collected electrical signal is the false touch signal. In some embodiments, after the target panel senses the false touch event corresponding to the maximum false touch force, the amplitude of the generated false touch signal can be detected to determine the amplitude of the false touch signal. The aforementioned maximum false touch force refers to the peak amplitude of the false touch signal.

[0103] In some embodiments, the aforementioned critical amplitude value is a critical value at which the processing signal of the first state is switched to the processing signal of the second state. Specifically, the switching circuit processes the amplified false touch signal, and the critical value at which the processing signal of the first state is switched to the processing signal of the second state is used; this switching state can be called a critical state, and correspondingly, the amplitude of the amplified false touch signal in the critical state is the critical amplitude value.

[0104] In some embodiments, the ratio of the critical amplitude value to the amplitude value of the false touch signal can be used as the first ratio.

[0105] Based on the embodiments provided in this application, the first ratio is determined by the amplitude of the accidental touch signal and the critical amplitude value of the processing signal transition. In this way, the critical ratio of the state transition between the accidental touch signal and the processing signal can be accurately defined, thereby ensuring that the accidental touch signal and the normal operation signal can be accurately distinguished in subsequent signal processing.

[0106] Based on the embodiments provided in this application, the voltage division ratio of the voltage divider circuit and / or the amplification ratio of the amplifier circuit in the sensing circuit can be flexibly adjusted. In this way, it can respond to different types of vibration events, which is beneficial to improving the sensing accuracy of electronic devices and expanding the application range of electronic devices.

[0107] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 4 As shown, the input terminal of the voltage divider circuit 22 is connected to the at least one piezoelectric component 10, the output terminal of the voltage divider circuit 22 is connected to the input terminal of the amplifier circuit 23, and the output terminal of the amplifier circuit 23 is connected to the switching circuit 21 or the processing unit 30.

[0108] The output end of the amplification circuit 23 is connected with the switch circuit 21 or the processing unit 30. Here, the voltage division circuit 22 can input the signal after the voltage division processing to the amplification circuit 23, and the amplification circuit 23 can further input the signal after the amplification processing to the switch circuit 21, and the switch circuit 21 is configured to convert the input signal of the amplification circuit 23 into the processing signal in the first state and the processing signal in the second state.

[0109] In some embodiments, the processing unit 30 can generate corresponding control instructions based on the processing signal output by the switch circuit 21. Since the processing signal includes the processing signal in the first state and the processing signal in the second state, compared with the input signal of the switch circuit 21, it loses part of the amplitude characteristics (for example, all signals exceeding the threshold voltage are converted into signals with the same amplitude), in order to facilitate the processing unit 30 to identify more types of vibration events or generate corresponding control instructions for more types of vibration events, therefore, the signal after the voltage division processing and the amplification processing (i.e. the input signal of the switch circuit 21) can be input to the processing unit 30, so that the processing unit 30 can further analyze the vibration event according to the input signal of the switch circuit 21 when facing the processing signal with similar signal characteristics, to obtain more accurate discrimination results and generate more actual control instructions.

[0110] Based on the embodiments provided in the present application, when the processing unit determines at least two control instructions (corresponding to vibration events) based on the processing signal, the amplitude characteristics of the vibration event can be further extracted based on the input signal of the switch circuit, and the extracted amplitude characteristics can be used as a judgment basis to further refine the judgment of the event type and improve the recognition accuracy.

[0111] Figure 5 A structural schematic diagram of an amplification circuit 23 provided in the embodiments of the present application is shown in FIG. 3. As shown in FIG. 3, the voltage division circuit 22 can be connected with the amplification circuit 23, and the output end of the amplification circuit 23 can be connected with the switch circuit 21 or the processing unit 30. Figure 5As shown, the amplification circuit 23 includes a proportional operational amplifier U, a first resistor R1, a second resistor R2 and a third resistor R3; the proportional operational amplifier U is configured to amplify an input signal based on the first proportion; a first end k1 of the first resistor R1 serves as a first input end 231 of the amplification circuit 23, a first end k2 of the second resistor R2 serves as a second input end 232 of the amplification circuit 23, and an output end p of the proportional operational amplifier U serves as an output end 233 of the amplification circuit 23; a second end n1 of the first resistor R1 is connected to a first input end o of the proportional operational amplifier U, a second end n2 of the second resistor R2 is connected to a second input end q of the proportional operational amplifier U and a first end k3 of the third resistor R3 respectively, and a second end n3 of the third resistor R3 is connected to the output end p of the proportional operational amplifier U; the first proportion is determined by the second resistor R2 and the third resistor R3.

[0112] In some embodiments, the amplification proportion (the first proportion) of the amplification circuit 23 in the sensing circuit 20 can be set according to requirements, which is not limited in the embodiments of the present application. In some embodiments, the amplification multiple of the amplification circuit 23 can be determined according to the resistance values of the second resistor R2 and the third resistor R3.

[0113] In some embodiments, the voltage at the output end 233 of the amplification circuit 23 can be determined by the following formula (1).

[0114] V2 = V1 * (1 + R3 / R2) (1)

[0115] In the above formula, V2 represents the voltage generated at the output end of the amplification circuit; V1 represents the voltage generated at the first input end of the amplification circuit; R2 represents the second resistor; R3 represents the third resistor; and (1 + R3 / R2) is the first proportion.

[0116] Based on the embodiments provided in the present application, the amplification circuit includes a proportional operational amplifier, a first resistor, a second resistor and a third resistor. The proportional operational amplifier in the amplification circuit can amplify the signal and enhance the sensing capability of the sensing circuit to the signal. The second resistor and the third resistor are connected to the second input end of the proportional operational amplifier, and by changing the resistance value of at least one of the second resistor and the third resistor, the amplification multiple of the operational amplifier can be changed, thereby meeting the vibration sensing requirements in different scenarios.

[0117] Figure 6 A structural schematic diagram of an amplification circuit 23 provided in the embodiments of the present application is shown in FIG. 3. As shown in FIG. 3, the amplification circuit 23 includes a proportional operational amplifier U, a first resistor R1, a second resistor R2 and a third resistor R3. Figure 6As shown, in some embodiments, in order to improve the performance of the amplification circuit 23, the amplification circuit 23 further comprises a first capacitor C1; the first end x of the proportional operational amplifier U is grounded, the second end y of the proportional operational amplifier U is connected with a second voltage source, the second voltage source is connected with the first end t1 of the first capacitor C1, and the second end u1 of the first capacitor C1 is grounded.

[0118] It can be understood that the first capacitor C1 is used to filter the amplification circuit 23, so as to ensure the stability of the voltage output by the amplification circuit 23. Here, the operational amplifier U can include a first end x and a second end y. The first end x is used for grounding, and the second end y is used for connecting the second voltage source Vcc1. The first end t1 of the first capacitor C1 can be connected with the second voltage source Vcc1, and the second end u1 of the first capacitor C1 can be grounded.

[0119] Figure 7 A structural schematic diagram of a voltage dividing circuit 22 provided by an embodiment of the present application is shown in FIG. 4. Figure 7 As shown, the voltage dividing circuit 22 comprises a fourth resistor R4 and a fifth resistor R5; the voltage dividing circuit 22 is configured to divide the input signal based on the second proportion;

[0120] The first end k4 of the fourth resistor R4 receives the input signal as the first end 221 of the voltage dividing circuit, the second end n4 of the fourth resistor R4 is connected with the first end k5 of the fifth resistor R5, the first end k5 of the fifth resistor R5 is connected with the input end of the subsequent circuit in the sensing circuit 20 as the second end 222 of the voltage dividing circuit 22, and the second end n5 of the fifth resistor R5 is grounded as the third end 223 of the voltage dividing circuit 22; the second proportion is determined by the fourth resistor R4 and the fifth resistor R5.

[0121] It can be understood that the first end k4 of the fourth resistor R4 receives the input signal as the first end 221 of the voltage dividing circuit, the second end n4 of the fourth resistor R4 is connected with the first end k5 of the fifth resistor R5, and the second end n5 of the fifth resistor R5 is grounded, so that the fourth resistor R4 and the fifth resistor R5 are arranged in series. Here, the first end k5 of the fifth resistor R5 is located between the fourth resistor R4 and the fifth resistor R5 arranged in series, and the voltage at the first end k5 of the fifth resistor R5 is less than the voltage at the first end k4 of the fourth resistor R4. After the first end k5 of the fifth resistor R5 is connected with the input end of the subsequent circuit in the sensing circuit 20, the voltage dividing circuit 22 divides the input signal received by the voltage dividing circuit.

[0122] In some embodiments, the voltage dividing ratio of the voltage dividing circuit 22 can be determined according to the resistance values of the fourth resistor R4 and the fifth resistor R5.

[0123] In some embodiments, the voltage of the second end 222 of the voltage dividing circuit 22 can be determined as follows in equation (2).

[0124] V4 = V1 * R5 / (R4 + R5) (2)

[0125] In the above equation, V1 represents the voltage of the first end 221 of the voltage dividing circuit; V4 represents the voltage of the second end 22 of the voltage dividing circuit; R4 represents the fourth resistance; R5 represents the fifth resistance; and the second ratio is R5 / (R4 + R5).

[0126] In some embodiments, the voltage dividing ratio (resistance value) of the voltage dividing circuit 22 can be set according to requirements. Different second ratios can be set for different types of vibration events to be detected. The event types of the above-mentioned vibration events include, but are not limited to, tapping events, heavy tapping events, rain events, small object collision events, and vehicle collision events, etc., and different event types can correspond to different vibration characteristics and signal amplitudes.

[0127] Therefore, the second ratio of voltage division can be set in advance based on the event type of the vibration event to be detected. A smaller second ratio is set for a signal with a smaller amplitude (i.e., a vibration event corresponding to a slight vibration needs to be detected), and a larger second ratio is set for a signal with a larger amplitude (i.e., a vibration event corresponding to a strong vibration needs to be detected). In this way, the output signal can be kept within a suitable range regardless of the amplitude of the input signal, facilitating subsequent signal processing and analysis.

[0128] In the above embodiments, the processing signal of the first state can be a processing signal of the first level, and the processing signal of the second state can be a processing signal of the second level; or the processing signal of the first state can be a processing signal of the second level, and the processing signal of the second state can be a processing signal of the first level.

[0129] In the above embodiments, the processing signal of the first state can be a processing signal of the first level, and the processing signal of the second state can be a processing signal of the second level; or the processing signal of the first state can be a processing signal of the second level, and the processing signal of the second state can be a processing signal of the first level.

[0130] Figure 8 A structural schematic diagram of an example perception system 800 according to embodiments of the present application is shown, Figure 9 A side view of a vehicle on which the perception system 800 is installed is shown.

[0131] As Figure 8 and Figure 9 shown, the perception system 800 includes one or more piezoelectric components 810 Figure 9Two piezoelectric components 810 are schematically shown in the diagram, each of which can be mounted on the body of the vehicle 90.

[0132] In some embodiments, the vehicle body typically includes multiple body panels 910, multiple interior trim pieces, and multiple vehicle components. The multiple body panels 910 can be assembled to form an overall vehicle body structure, such as forming a cabin or cargo compartment. For example, body panels 910 include doors, windows, hood, trunk lid, roof, front bumper, rear bumper, and fenders. Interior trim pieces are installed in the cabin and cargo compartment to enhance vehicle comfort and provide interfaces and equipment, such as headliners, floors, dashboards, door panels, center console panels, pillar guards, and window sills. Vehicle components are located in the cabin and cargo compartment and include seats, steering wheels, instrument panels, center console screens, armrests, and license plates.

[0133] like Figure 9 As shown, the piezoelectric component 810 can be installed at any one or more locations on the front side, front door, rear door, and rear side of the vehicle body panel 910.

[0134] The sensing system 800 also includes a sensing circuit 820 and a processing unit 830. The sensing circuit 820 is configured to perform matching / division, amplification, modulation, and other processing on the electrical signal received via the piezoelectric component to output a signal (e.g., a pulse signal) that can be further analyzed and processed by the processing unit. Exemplarily, the sensing circuit 820 can be a pulse modulation circuit. Understandably, the sensing circuit can be composed of multiple circuits.

[0135] In some embodiments, in a vehicle scenario, the sensing circuit 820 and the processing unit 830 may be integrated into the vehicle's electronic control unit (ECU).

[0136] The processing unit 830 is configured to receive and process the signals output by the sensing circuit. Illustratively, the processing unit can be an MCU. In some embodiments, the processing unit 830 is configured to generate corresponding control instructions in response to receiving the signals output by the sensing circuit. Illustratively, the control instructions can include wake-up instructions, unlock instructions, vehicle control instructions, remote request instructions, prompt instructions, etc. Among them, the wake-up instructions are used to wake up the human-computer interaction function of the vehicle, for example. The unlock instructions are used to release the locked state of a specific object, such as unlocking the vehicle door, unlocking the trunk, etc. The vehicle control instructions are used to control the working state of the vehicle components of the vehicle, such as opening the vehicle door, starting the windshield wiper, automatic driving, etc. The remote request operation is used to send a remote request to the associated electronic device of the vehicle, such as initiating a communication request, synchronizing vehicle state information, etc. The prompt operation is used to prompt the user in the form of sound, image, text, vibration, etc., such as prompting the user to drive safely, etc. The embodiments of the present application are not limited in this regard. In other embodiments, the processing unit is configured to analyze the signals output by the sensing circuit to identify the type or source of the vibration event sensed by the piezoelectric component.

[0137] In the embodiments of the present application, the electronic device 840 can be various portable computer programs, including vehicles, smart home devices, etc.

[0138] Illustratively, the vehicle can include a passenger car including a sport utility vehicle (SUV), a bus, a truck, various commercial vehicles, a watercraft including various boats and ships, an airplane, etc., and a hybrid vehicle, an electric vehicle, a hybrid electric vehicle, a hydrogen-powered vehicle, and other alternative fuel vehicles (e.g., fuel derived from resources other than petroleum).

[0139] Illustratively, the smart home device can include an access control device, a camera device, a smart home appliance, a smart terminal, etc.

[0140] Illustratively, the smart home appliance can include a smart television, a smart air conditioner, a smart washing machine, a smart sound box, a smart rice cooker, a cleaning device, a smart body fat scale, a lighting device, a curtain, etc., without limitation.

[0141] Illustratively, the smart terminal can include a personal computer (PC), a notebook computer, a mobile phone, an all-in-one machine, a palm computer, a tablet computer (pad), a portable device, or a wearable device, etc., without limitation.

[0142] Figure 10 A schematic diagram of the composition structure of a vehicle is provided in the embodiments of the present application, as shown in Figure 10 The vehicle 1000 includes a vehicle body 1010 and an electronic device 1020, wherein:

[0143] A vehicle body 1010, the vehicle body 1010 comprising a plurality of body panels, a plurality of interior trim pieces, and vehicle components connected to the body panels and / or the interior trim pieces;

[0144] Electronic devices 1020, the electronic devices 1020 being provided on at least one of the body panels, the interior trim pieces, and the vehicle components.

[0145] Here, the electronic devices 1020 correspond to the electronic devices in the foregoing embodiments, and the vehicle body 1010 corresponds to the vehicle body in the foregoing embodiments, and the specific embodiments can be referred to in the foregoing embodiments.

[0146] The above merely describes the embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An electronic device, wherein, The electronic device comprises at least one piezoelectric component, a sensing circuit and a processing unit, the at least one piezoelectric component is electrically connected with the processing unit through the sensing circuit; wherein: The at least one piezoelectric component is configured to sense a vibration event and generate a raw signal; The sensing circuit is configured to process the raw signal to generate a processed signal; the processed signal is a pulse signal; The processing unit is configured to generate a control instruction based on the processed signal.

2. Electronic device according to claim 1, wherein, The signal state of the processed signal comprises a first state and a second state, the sensing circuit comprises a switching circuit; the switching circuit is used to control the output of the processed signal in the first state or the processed signal in the second state; the processed signal in the first state is different from the processed signal in the second state.

3. The electronic device of claim 2, wherein, The switching circuit comprises a switching triode and a pull-up resistor or a pull-down resistor, wherein the switching triode has a threshold voltage, a first end of the switching triode is connected with the rest of the sensing circuit as a control end of the switching circuit, a second end of the switching triode is connected with the processing unit and a first end of the pull-up resistor or the pull-down resistor as a first end of the switching circuit, a third end of the switching triode is grounded or connected with a first voltage source as a second end of the switching circuit, a second end of the pull-up resistor is connected with the first voltage source or a second end of the pull-down resistor is grounded; the switching circuit is used to control the on-off of the second end of the switching triode and the third end of the switching triode based on the input signal and the threshold voltage.

4. The electronic device of claim 1, wherein, The sensing circuit comprises at least one of a voltage dividing circuit and an amplification circuit; the voltage dividing circuit is used to perform second-ratio voltage dividing processing on the input signal, and the amplification circuit is used to perform first-ratio amplification processing on the input signal.

5. The electronic device of claim 4, wherein, An input end of the voltage dividing circuit is connected with the at least one piezoelectric component, an output end of the voltage dividing circuit is connected with an input end of the amplification circuit, and an output end of the amplification circuit is connected with the switching circuit or the processing unit.

6. Electronic device according to claim 4 or 5, wherein, The amplification circuit comprises a proportional operational amplifier, a first resistor, a second resistor and a third resistor; the proportional operational amplifier is configured to amplify the input signal based on the first ratio; A first end of the first resistor is a first input end of the amplification circuit, a first end of the second resistor is a second input end of the amplification circuit, and an output end of the proportional operational amplifier is an output end of the amplification circuit; a second end of the first resistor is connected with a first input end of the proportional operational amplifier, a second end of the second resistor is connected with a second input end of the proportional operational amplifier and a first end of the third resistor respectively, and a second end of the third resistor is connected with an output end of the proportional operational amplifier; the first ratio is determined by the second resistor and the third resistor.

7. The electronic device of claim 6, wherein, The amplification circuit further comprises a first capacitor; a first end of the proportional operational amplifier is grounded, a second end of the proportional operational amplifier is connected with a second voltage source, the second voltage source is connected with a first end of the first capacitor, and a second end of the first capacitor is grounded.

8. Electronic device according to claim 4 or 5, wherein The voltage dividing circuit comprises a fourth resistor and a fifth resistor; the voltage dividing circuit is configured to divide an input signal based on the second ratio; A first end of the fourth resistor receives an input signal as a first end of a voltage dividing circuit, a second end of the fourth resistor is connected with a first end of the fifth resistor, the first end of the fifth resistor is connected with an input end of a subsequent circuit in the sensing circuit as a second end of the voltage dividing circuit, and a second end of the fifth resistor is grounded as a third end of the voltage dividing circuit; the second ratio is determined by the fourth resistor and the fifth resistor.

9. The electronic device of claim 2, wherein, One of the first state processing signal and the second state processing signal is a high level signal, and the other is a low level signal.

10. A vehicle, wherein, Comprising: a vehicle body comprising a plurality of body panels, a plurality of interior trim pieces, and a vehicle component connected to the body panels and / or the interior trim pieces; the electronic device of any one of claims 1 to 9, the electronic device being provided on at least one of the body panels, the interior trim pieces, and the vehicle component.

Citation Information

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  • Electronic device and vehicle

    WO2026144714A1