Triggering device and method for terminal equipment

Abstract

The present invention discloses a triggering device and method for terminal equipment. In the triggering device, a triggering end of an FPC module is connected to a control end of a switch tube and a first end of a first resistor; a communication end of the FPC module is connected to a main system module via an I2C bus; the first end of the switch tube is connected to a first power supply; the second end of the switch tube is connected to a first end of a second resistor; the second end of the first resistor is connected to a first end of a third resistor and an interrupt pin of the main system module; the second end of the second resistor is connected to a first end of a fourth resistor and a power-on / off sensing pin of the main system module; the second end of the third resistor is connected to the first power supply; and the second end of the fourth resistor is grounded. The FPC module can output a low level when a human body approaches, thereby waking up or triggering the terminal equipment to start up; the main system module wakes up the terminal equipment and checks the FPC module only when the interrupt pin is at a low level, thereby reducing the power consumption required for triggering.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a triggering device and method for terminal equipment. Background Art

[0002] When not in use, existing wireless electronic products are typically in deep sleep or powered off. They require physical buttons or ultra-low-power solutions like timed wake-up to check for wireless transmission signals to power on, off, or trigger wake-up. Using physical buttons for wake-up requires a firm press, resulting in a poor user experience and easily damaged physical buttons. Using timed wake-up requires the main system to check for signals in real time, consuming significant power. Summary of the Invention

[0003] The present invention provides a triggering device and method for a terminal device, so as to solve the technical problems that a physical button needs to be pressed to wake up the terminal device and the power consumption is high during the wake-up.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a trigger device for a terminal device, comprising: an FPC module, a main system module, a switch tube, a first resistor, a second resistor, a third resistor and a fourth resistor;

[0005] Wherein, the trigger end of the FPC module is connected to the control end of the switch tube and the first end of the first resistor;

[0006] The communication end of the FPC module is connected to the main system module via an I2C bus;

[0007] The first end of the switch tube is connected to the first power supply;

[0008] The second end of the switch tube is connected to the first end of the second resistor;

[0009] The second end of the first resistor is connected to the first end of the third resistor and the interrupt pin of the main system module;

[0010] The second end of the second resistor is connected to the first end of the fourth resistor and the power on / off sensing pin of the main system module;

[0011] The second end of the third resistor is connected to the first power supply;

[0012] The second end of the fourth resistor is grounded;

[0013] The FPC module is configured to output a high level through the trigger terminal when not triggered, and to output a low level through the trigger terminal when triggered by someone approaching.

[0014] The main system module is used to wake up the terminal device when the power on / off sensing pin receives a high level; and is used to check the capacitance value of the FPC module when the interrupt pin receives a low level, and perform corresponding tasks based on the capacitance value; and is used to set the FPC module through the I2C bus.

[0015] The FPC module of the present invention outputs a high level when not triggered, causing the control terminal connected to the trigger terminal of the FPC module to be high, thereby turning off the switch, the power-on / off sensing pin of the main system module to be low, and the interrupt pin to be high, so that the terminal device remains in a sleep state. When someone approaches, the FPC module triggers and outputs a low level. The switch tube is turned on because the gate-source voltage is less than the turn-on voltage. The voltage at the first terminal of the switch tube is equal to the voltage value of the first voltage source. After voltage division by the second resistor and the fourth resistor, the power-on / off sensing pin is pulled to a high level, and the terminal device is turned on. In addition, the interrupt pin is pulled to a low level through the third resistor due to the low level output of the FPC module. The main system module then wakes up the terminal device, checks the capacitance value of the FPC module, and performs related operations. Therefore, the main system module only checks the FPC module when the interrupt pin receives a low level, reducing power consumption in daily use. Moreover, the FPC module eliminates the need to press physical buttons to wake up and turn on the terminal device, improving the user experience.

[0016] Furthermore, the performing of corresponding tasks according to the capacitance value is specifically as follows:

[0017] When the capacitance value is greater than a first threshold, timing the duration of the capacitance value;

[0018] When the duration exceeds a second threshold, the terminal device is triggered to power on.

[0019] The present invention sets a first threshold and times the duration of the capacitance value, thereby eliminating the excessively high capacitance value of the FPC for a short period of time caused by unexpected environmental factors, reducing errors and improving the accuracy of the non-sensing trigger.

[0020] Furthermore, the triggering device for the terminal device further includes: a second power supply, a switch, a diode, a fifth resistor, and a sixth resistor;

[0021] The positive electrode of the second power supply is connected to the first end of the switch;

[0022] The negative electrode of the second power supply is connected to the circuit ground;

[0023] The second end of the switch is connected to the anode of the diode and the first end of the fifth resistor;

[0024] The cathode of the diode is connected to the first end of the second resistor and the second end of the switch tube;

[0025] The second end of the fifth resistor is connected to the first end of the sixth resistor and the trigger pin of the main system module;

[0026] The second end of the sixth resistor is connected to the circuit ground.

[0027] The present invention can not only realize the power-on and wake-up of the terminal device through non-sensing triggering, but also realize the opening of the terminal device through a mechanical button. When the button is pressed, the switch is closed, and the second power supply pulls the power switch sensing pin to a high level through the diode and the voltage divider resistor composed of the second capacitor and the fourth capacitor, thereby realizing the power-on of the terminal device; in addition, through the voltage divider of the fifth resistor and the sixth resistor, the trigger pin is pulled to a high level to enable the main control system to wake up the terminal device, thereby achieving compatibility with the two triggering methods, thereby improving the user experience.

[0028] Furthermore, the triggering device for the terminal device further includes a capacitor;

[0029] The first end of the capacitor is connected to the first end of the sixth resistor and the trigger pin of the main system module;

[0030] The second end of the capacitor is connected to the second end of the sixth resistor and a circuit ground.

[0031] The capacitor of the present invention performs filtering processing on the voltage of the second power supply to stabilize the working state of the starting device.

[0032] Furthermore, the FPC module includes: an FPC and a capacitance monitoring chip;

[0033] The FPC is used to adjust its own capacitance value according to changes in the external environment;

[0034] The capacitance monitoring chip is used to monitor the capacitance value of the FPC; and is used to respond to the setting of the FPC module by the main system module to adjust the third threshold corresponding to the capacitance value; when the capacitance value is converted into a voltage value and the voltage value is greater than the third threshold, a low level is output through the communication end of the FPC module; otherwise, a high level is output through the communication end of the FPC module.

[0035] The present invention uses an FPC module to output the low level required for power on / off or wake-up according to the capacitance value of the FPC. In addition, it can also respond to the setting operation of the main system module through the I2C bus, thereby meeting the user's preset power on / off or wake-up conditions without manually waking up the device.

[0036] Furthermore, the capacitance monitoring chip includes: a capacitance-to-voltage converter, an acquisition and filtering module, and an I2C communication module;

[0037] The capacitance-to-voltage converter is used to convert the received capacitance value into a corresponding first voltage value;

[0038] The acquisition and filtering module is used to perform smooth filtering on the first voltage value according to a filtering algorithm, and then perform gain amplification to obtain a second voltage value;

[0039] The I2C communication module is used to determine whether the second voltage value is greater than the third threshold; when the second voltage value is greater than the third threshold, output a low level; when the second voltage value is not greater than the third threshold, output a high level.

[0040] The present invention obtains an effective voltage value or a second voltage value through a capacitor-voltage converter and an acquisition and filtering module, and then compares the second voltage value with a third threshold according to the I2C communication module to determine whether to output a low level; wherein, the acquisition and filtering module smoothes and filters the first voltage value to suppress interference signals, so that the FPC module can more accurately implement non-sensing power on / off or wake-up operations.

[0041] Furthermore, the capacitance monitoring chip further includes: an environmental compensation module;

[0042] Wherein, the received capacitance value includes: a second capacitance value;

[0043] The environmental compensation module is used to collect the capacitance value of the FPC to obtain a first capacitance value; and to eliminate the environmental capacitance value in the first capacitance value to obtain a second capacitance value, and transmit the second capacitance value to the capacitance-to-voltage converter.

[0044] The present invention eliminates the environmental capacitance value in the initially collected capacitance value through the environmental compensation module, reduces the influence of the external environment on the FPC, improves the accuracy of the FPC module judgment, and further optimizes the non-sensing triggering without pressing a button.

[0045] On the other hand, an embodiment of the present invention further provides a triggering method for a terminal device, which is applied to the triggering device for a terminal device according to any one of claims 1 to 7, comprising:

[0046] After the trigger device for the terminal device is turned on, it is initialized to restore the FPC module to the default state;

[0047] The number of acquisition channels, scanning frequency, and internal gain of the FPC module are set so that the FPC module periodically acquires the capacitance value of the FPC according to the number of acquisition channels and the scanning frequency, and converts the capacitance value of the FPC into a first voltage value and performs gain amplification according to the internal gain to obtain a second voltage value;

[0048] determining whether the second voltage value is greater than a trigger threshold;

[0049] When the second voltage value is greater than the trigger threshold, the terminal device is triggered to power on.

[0050] The present invention uses the main system module to set the FPC module via the I2C bus, meeting the requirements of different users for the acquisition frequency and accuracy of the FPC module, while further improving the user experience without pressing physical buttons for triggering. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A schematic diagram of the connection relationship of an embodiment of a triggering device for a terminal device provided by the present invention;

[0052] Figure 2 A schematic structural diagram of an embodiment of a capacitance monitoring chip for an FPC module provided by the present invention;

[0053] Figure 3 A schematic structural diagram of another embodiment of the capacitance monitoring chip of the FPC module provided by the present invention;

[0054] Figure 4 A flowchart of an embodiment of a triggering method for a terminal device provided by the present invention. DETAILED DESCRIPTION

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0056] Example 1

[0057] Please refer to Figure 1 , is a schematic diagram of the connection relationship of an embodiment of a trigger device for a terminal device provided by the present invention, including: an FPC module, a main system module, a switch tube Q1, a first resistor R6, a second resistor R1, a third resistor R7, and a fourth resistor R2;

[0058] Wherein, the trigger end of the FPC module is connected to the control end of the switch tube Q1 and the first end of the first resistor R6;

[0059] The communication end of the FPC module is connected to the main system module via an I2C bus;

[0060] The first end of the switch tube Q1 is connected to the first power supply VCC;

[0061] The second end of the switch tube Q1 is connected to the first end of the second resistor R1;

[0062] The second end of the first resistor R6 is connected to the first end of the third resistor R7 and the interrupt pin of the main system module;

[0063] The second end of the second resistor R1 is connected to the first end of the fourth resistor R2 and the power on / off sensing pin of the main system module;

[0064] The second end of the third resistor R7 is connected to the first power supply VCC;

[0065] The second end of the fourth resistor R2 is grounded;

[0066] The FPC module is configured to output a high level through the trigger terminal when not triggered, and to output a low level through the trigger terminal when triggered by someone approaching.

[0067] The main system module is used to wake up the terminal device when the power on / off sensing pin receives a high level; and is used to check the capacitance value of the FPC module when the interrupt pin receives a low level, and perform corresponding tasks based on the capacitance value; and is used to set the FPC module through the I2C bus.

[0068] In this embodiment, when the FPC is not triggered, the trigger terminal continuously outputs a high level, causing the control terminal of the switch Q1 to be high, turning off the switch Q1. When the switch Q1 is turned off, the power-on / off sensing pin of the main system module is pulled low by the fourth resistor R2 and maintained at a low level. The interrupt pin remains high when the FPC is not triggered, and the terminal device is not awakened. When the FPCC is triggered, the trigger terminal outputs a low level, thereby pulling the control terminal of the switch Q1 to a low potential. As a result, the gate-source voltage of the switch Q1 is less than the threshold voltage, turning on the switch Q1. After the switch Q1 is turned on, the voltage at the second terminal is equal to the voltage of the first voltage source. After voltage division by the second resistor R1 and the fourth resistor R2, the power-on / off sensing pin of the main system module is pulled high, which is expressed as Vcc*R2 / (R1+R2), where Vcc is the voltage of the first voltage source VCC. This turns on the terminal device. Furthermore, when the FPC outputs a low level, the interrupt pin receives a low level, causing the main system module to wake up the terminal device.

[0069] In this embodiment, the switch tube may be a PMOS tube or an NPN transistor.

[0070] In this embodiment, the corresponding task is performed according to the capacitance value, specifically: when the capacitance value is greater than a first threshold, the duration of the capacitance value is timed; when the duration exceeds a second threshold, the terminal device is triggered to power on.

[0071] In this embodiment, the first and second thresholds can be set by the user as needed, i.e., by the main system module through the I2C bus to the FPC module. The second threshold can be set to 500ms. When the duration exceeds the second threshold, the terminal device is triggered to power on; when the duration does not exceed the second threshold, the terminal device is not triggered to power on.

[0072] The present invention eliminates the excessively high capacitance value of the FPC for a short time caused by unexpected environmental factors by setting the first threshold and timing the duration of the capacitance value, thereby reducing errors and improving the accuracy of the non-sensing trigger.

[0073] Furthermore, the triggering device for the terminal device further includes: a second power supply BT1, a switch S1, a diode D1, a fifth resistor R4, and a sixth resistor R5;

[0074] The positive electrode of the second power supply BT1 is connected to the first end of the switch S1;

[0075] The negative electrode of the second power supply BT1 is connected to the circuit ground;

[0076] The second end of the switch S1 is connected to the anode of the diode D1 and the first end of the fifth resistor R4;

[0077] The cathode of the diode D1 is connected to the first end of the second resistor R1 and the second end of the switch tube Q1;

[0078] The second end of the fifth resistor R4 is connected to the first end of the sixth resistor R5 and the trigger pin of the main system module;

[0079] A second end of the sixth resistor R5 is connected to the circuit ground.

[0080] The present invention not only enables the power-on and wake-up of terminal devices through non-sensing triggering, but also enables the power-on of terminal devices through mechanical buttons. When the button is pressed, switch S1 closes, and the second power supply BT1 pulls the power-on / off sensing pin to a high level VBT1*R1 / (R2+R1) via diode D1 and a voltage divider resistor formed by the second and fourth capacitors, where VBT1 is the voltage value of the second power supply BT1; thereby powering on the terminal device. In addition, the trigger pin is pulled to a high level VBT1*R5 / (R4+R5) through the voltage divider of the fifth and sixth resistors R4 and R5, allowing the main control system to wake up the terminal device, thereby achieving compatibility with both triggering methods and improving the user experience.

[0081] In this embodiment, the main system module can determine whether there is a physical button type trigger based on the trigger pin, and determine whether there is an FPC module trigger based on the interrupt pin; whether it is a button trigger or an FPC module trigger, the power on / off sensing pin can be pulled to a high level to turn on the terminal device; therefore, when the two triggering methods occur at the same time, there is no priority.

[0082] Furthermore, the triggering device for the terminal device further includes a capacitor C1;

[0083] The first end of the capacitor C1 is connected to the first end of the sixth resistor R5 and the trigger pin of the main system module;

[0084] The second end of the capacitor C1 is connected to the second end of the sixth resistor R5 and a circuit ground.

[0085] The capacitor C1 of the present invention filters the voltage of the second power supply BT1 to stabilize the working state of the starting device.

[0086] Furthermore, the FPC module includes: an FPC and a capacitance monitoring chip;

[0087] The FPC is used to adjust its own capacitance value according to changes in the external environment;

[0088] The capacitance monitoring chip is used to monitor the capacitance value of the FPC; and is used to respond to the setting of the FPC module by the main system module to adjust the third threshold corresponding to the capacitance value; when the capacitance value is converted into a voltage value and the voltage value is greater than the third threshold, a low level is output through the communication end of the FPC module; otherwise, a high level is output through the communication end of the FPC module.

[0089] In this embodiment, the FPC can be of any shape, and the capacitance monitoring chip can receive configuration operations from the main system module via the I2C bus and set the third threshold. In addition, the FPC module uses the FPC as a sensing assembly and distinguishes external changes through the sensing capacitance on the FPC. Moreover, the change in the FPC capacitance does not require physical contact, and the trigger effect can be achieved by simply changing the spatial distance of the person to the FPC. Among them, the capacitance value expression is:

[0090] C = εS / 4πkd;

[0091] Where ε is a constant, S is the area of ​​the FPC, d is the positive distance between the FPC and the human body, and k is the electrostatic force constant.

[0092] In this embodiment, because the capacitance values ​​formed by the FPC vary with different spatial sensing distances, the capacitance detection chip can easily distinguish between different states, thereby achieving a response and triggering. The capacitance distribution around the FPC differs when a person is approaching and when no one is. Based on the distributed capacitance around the FPC, these two situations can be distinguished, thereby achieving non-sensing triggering when a person approaches. The FPC module is also small and thin, making it suitable for a wide range of applications. Furthermore, the main system does not need to check the FPC's capacitance value in real time. Under normal circumstances, it is in a deep sleep state and only checks the FPC module when awakened by an FPC interrupt or when the interrupt pin is pulled low.

[0093] In this embodiment, three levels of capacitance value of the FPC can be distinguished according to the third threshold value. The first level is the capacitance value when no object is approaching and is only affected by environmental factors; the second level is the capacitance value when a non-human object is approaching; the third level is the capacitance value when a human body is approaching. The capacitance value exceeds the capacitance values ​​of the first and second levels. The closer the human body is to the FPC module, the higher the capacitance value.

[0094] Please refer to Figure 2 , is a structural diagram of an embodiment of a capacitance monitoring chip of an FPC module provided by the present invention, wherein the capacitance monitoring chip includes: a capacitance-to-voltage converter 101, an acquisition and filtering module 102, and an I2C communication module 103;

[0095] The capacitance-to-voltage converter 101 is configured to convert the received capacitance value into a corresponding first voltage value;

[0096] The acquisition and filtering module 102 is configured to perform smooth filtering on the first voltage value according to a filtering algorithm, and then perform gain amplification to obtain a second voltage value;

[0097] The I2C communication module 103 is configured to determine whether the second voltage value is greater than the third threshold; output a low level when the second voltage value is greater than the third threshold; and output a high level when the second voltage value is not greater than the third threshold.

[0098] The present invention obtains an effective voltage value or a second voltage value through a capacitor-to-voltage converter 101 and an acquisition and filtering module 102, and then compares the second voltage value with a third threshold according to the I2C communication module 103 to determine whether to output a low level; wherein the acquisition and filtering module 102 smoothes and filters the first voltage value to suppress interference signals, so that the FPC module can more accurately implement the inductive switch S1 start or wake-up operation.

[0099] Please refer to Figure 3 , which is a structural diagram of another embodiment of the capacitance monitoring chip of the FPC module provided by the present invention. Figure 3and Figure 2 The main difference is that Figure 3 It includes: an environmental compensation module 201 .

[0100] In this embodiment, the capacitance monitoring chip further includes: an environment compensation module 201 .

[0101] In this embodiment, the received capacitance value includes: a second capacitance value.

[0102] The environmental compensation module 201 is used to collect the capacitance value of the FPC to obtain a first capacitance value; and to eliminate the environmental capacitance value in the first capacitance value to obtain a second capacitance value, and transmit the second capacitance value to the capacitance-to-voltage converter.

[0103] The present invention eliminates the environmental capacitance value in the initially collected capacitance value through the environmental compensation module 201, reduces the influence of the external environment on the FPC, improves the accuracy of the FPC module judgment, and further optimizes the non-sensing trigger without pressing a button.

[0104] Please refer to Figure 4 , which is a flow chart of an embodiment of a triggering method for a terminal device provided by the present invention, which mainly includes: steps 301 to 304, which are specifically as follows:

[0105] Step 301: After the trigger device for the terminal device is turned on, initialization is performed to restore the FPC module to a default state.

[0106] In this embodiment, device initialization includes configuring I2C, ADC acquisition functions, and acquisition module functions.

[0107] Step 302: The number of acquisition channels, scanning frequency, and internal gain of the FPC module are set so that the FPC module regularly acquires the capacitance value of the FPC according to the number of acquisition channels and the scanning frequency, and converts the capacitance value of the FPC into a first voltage value and performs gain amplification according to the internal gain to obtain a second voltage value.

[0108] In this embodiment, three different acquisition channels can be set up, which can be used in conjunction with each other or individually. The FPC module will scan to obtain the capacitance value of the FPC. The scanning frequency can be set arbitrarily according to the user scenario. The higher the acquisition frequency, the more accurate the reading accuracy. The internal gain is used to amplify the effective acquisition electrical signal. The acquired electrical signal refers to the effective value of the external induced capacitance value converted into an electrical signal.

[0109] In this embodiment, the three acquisition channels can be three different FPCs. In this embodiment, one FPC is used. If different FPCs need to sense changes in the surrounding environment, it is only necessary to connect multiple FPC circuits in parallel.

[0110] Step 303: Determine whether the second voltage value is greater than a trigger threshold.

[0111] Step 304: When the second voltage value is greater than a trigger threshold, the terminal device is triggered to power on.

[0112] In this embodiment, when the second voltage value is not greater than the trigger threshold, the trigger end of the FPC module continuously outputs a high level, thereby not triggering the terminal device to power on.

[0113] The present invention uses the main system module to set the FPC module via the I2C bus, meeting the requirements of different users for the acquisition frequency and accuracy of the FPC module, while further improving the user experience without pressing physical buttons for triggering.

[0114] The FPC module of the present invention outputs a high level when not triggered, causing the control terminal connected to the trigger terminal of the FPC module to be high, thereby turning off the switch Q1, the main system module's switch S1 sensing pin to be low, and the interrupt pin to be high, keeping the terminal device in a sleep state. When someone approaches, the FPC module triggers and outputs a low level. The switch Q1 turns on because the gate-source voltage is less than the turn-on voltage. The voltage at the first terminal of the switch Q1 is equal to the voltage value of the first voltage source. After voltage division by the second resistor R1 and the fourth resistor R2, the switch S1 sensing pin is pulled to a high level, turning on the terminal device. In addition, the interrupt pin is pulled to a low level by the third resistor R7 due to the low level output of the FPC module. The main system module then wakes up the terminal device, checks the capacitance value of the FPC module, and performs related operations. Therefore, the main system module only checks the FPC module when the interrupt pin receives a low level, reducing power consumption in daily use. Moreover, the FPC module eliminates the need to press physical buttons to wake up and turn on the terminal device, improving the user experience.

[0115] The specific embodiments described above further illustrate the objectives, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention for those skilled in the art.

Claims

1. A triggering device for a terminal device, characterized in that: include: FPC module, main system module, switch tube, first resistor, second resistor, third resistor and fourth resistor; Wherein, the trigger end of the FPC module is connected to the control end of the switch tube and the first end of the first resistor; The communication end of the FPC module is connected to the main system module via an I2C bus; The first end of the switch tube is connected to the first power supply; The second end of the switch tube is connected to the first end of the second resistor; The second end of the first resistor is connected to the first end of the third resistor and the interrupt pin of the main system module; The second end of the second resistor is connected to the first end of the fourth resistor and the power on / off sensing pin of the main system module; The second end of the third resistor is connected to the first power supply; The second end of the fourth resistor is grounded; The FPC module is configured to output a high level through the trigger terminal when not triggered, and to output a low level through the trigger terminal when triggered by someone approaching. The main system module is used to wake up the terminal device when the power on / off sensing pin receives a high level; and is used to check the capacitance value of the FPC module when the interrupt pin receives a low level, and perform corresponding tasks based on the capacitance value; and is used to set the FPC module through the I2C bus.

2. The triggering device for a terminal device according to claim 1, wherein: The corresponding tasks are executed according to the capacitance value, specifically: When the capacitance value is greater than a first threshold, timing the duration of the capacitance value; When the duration exceeds a second threshold, the terminal device is triggered to power on.

3. The triggering device for a terminal device according to claim 1, wherein: Also includes: a second power supply, a switch, a diode, a fifth resistor, and a sixth resistor; The positive electrode of the second power supply is connected to the first end of the switch; The negative electrode of the second power supply is connected to the circuit ground; The second end of the switch is connected to the anode of the diode and the first end of the fifth resistor; The cathode of the diode is connected to the first end of the second resistor and the second end of the switch tube; The second end of the fifth resistor is connected to the first end of the sixth resistor and the trigger pin of the main system module; The second end of the sixth resistor is connected to the circuit ground.

4. The triggering device for a terminal device according to claim 3, wherein: Also includes capacitors; The first end of the capacitor is connected to the first end of the sixth resistor and the trigger pin of the main system module; The second end of the capacitor is connected to the second end of the sixth resistor and a circuit ground.

5. The triggering device for a terminal device according to any one of claims 1 to 4, characterized in that: The FPC module includes: FPC and capacitance monitoring chip; The FPC is used to adjust its own capacitance value according to changes in the external environment; The capacitance monitoring chip is used to monitor the capacitance value of the FPC; and is used to respond to the setting of the FPC module by the main system module to adjust the third threshold corresponding to the capacitance value; when the capacitance value is converted into a voltage value and the voltage value is greater than the third threshold, a low level is output through the communication end of the FPC module; otherwise, a high level is output through the communication end of the FPC module.

6. The triggering device for a terminal device according to claim 5, characterized in that: The capacitance monitoring chip includes: a capacitance-to-voltage converter, an acquisition and filtering module, and an I2C communication module; The capacitance-to-voltage converter is used to convert the received capacitance value into a corresponding first voltage value; The acquisition and filtering module is used to perform smooth filtering on the first voltage value according to a filtering algorithm, and then perform gain amplification to obtain a second voltage value; The I2C communication module is used to determine whether the second voltage value is greater than the third threshold; when the second voltage value is greater than the third threshold, output a low level; when the second voltage value is not greater than the third threshold, output a high level.

7. The triggering device for a terminal device according to claim 6, characterized in that: The capacitance monitoring chip further includes: an environmental compensation module; Wherein, the received capacitance value includes: a second capacitance value; The environmental compensation module is used to collect the capacitance value of the FPC to obtain a first capacitance value; and to eliminate the environmental capacitance value in the first capacitance value to obtain a second capacitance value, and transmit the second capacitance value to the capacitance-to-voltage converter.

8. A triggering method for a terminal device, characterized in that: The triggering device for a terminal device as claimed in any one of claims 1 to 7 comprises: After the trigger device for the terminal device is turned on, it is initialized to restore the FPC module to the default state; The number of acquisition channels, scanning frequency, and internal gain of the FPC module are set so that the FPC module periodically acquires the capacitance value of the FPC according to the number of acquisition channels and the scanning frequency, and converts the capacitance value of the FPC into a first voltage value and performs gain amplification according to the internal gain to obtain a second voltage value; determining whether the second voltage value is greater than a trigger threshold; When the second voltage value is greater than the trigger threshold, the terminal device is triggered to power on.

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