Touch device, control method of touch device and chip
The contact sensor assists the mechanical sensor to determine the working status of the touch device, and solves the problem of mistriggering capacitive mechanical sensors, simplifies circuit design and reduces hardware and energy consumption, and realizes effective distinction and accurate triggering judgment of impurity interference.
Patent Information
- Application Number
- CN202411255097.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2024-12-20
AI Technical Summary
Existing capacitive mechanical sensors are susceptible to impurity deposition interference, resulting in false triggering. In the prior art, the filtering or correction algorithms are complex and increase the hardware burden, affecting the reaction speed.
Use contact sensors to assist the mechanical sensor to determine the working state of the touch device. Through the control circuit combining the detection results of the mechanical sensor and the contact sensor, determine whether the touch device is triggered, simplify the circuit design and multiplex similar sensor processing circuits, and reduce hardware and energy. Consumption.
Effectively distinguish between human contact and impurity interference, simplify circuit design, almost no increase in hardware and energy consumption costs, and improve the accuracy and reaction speed of touch devices.
Smart Images
Figure CN119165955A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of touch control technology, and in particular to a touch control device, a control method for the touch control device, and a chip. Background Art
[0002] In home appliances, wearable devices and other devices involving touch control, mechanical sensors (such as Figure 1 As shown in Figure 1), such as pressure sensors, are a common component. These sensors usually work based on the principle that the capacitor plates deform after being subjected to mechanical forces (such as Figure 2 When the human body or other objects come into contact with these devices, they change the shape of the capacitor plates by applying pressure, resulting in a change in capacitance that is detected by the sensor. This technology is very useful in many applications, such as touch screens, game controllers, medical devices, and more.
[0003] However, the deformation principle of capacitive mechanical sensors is easily disturbed, resulting in unexpected deformation of the capacitor plates and unexpected changes in the capacitance value. Figure 3 It shows a possible interference factor, namely impurity deposition. Impurities can be solid, liquid, or formed by liquefaction or solidification of gas. The sources of impurities may be diverse, such as introduced from the outside or generated by aging inside the sensor. In short, impurities will cause the capacitor plate to deform, thereby changing the capacitance value, resulting in false triggering. This false triggering is usually difficult to predict and does not follow specific rules.
[0004] In the existing technology, in order to prevent misjudgment caused by impurities deposited on the capacitor plates, some filtering or correction algorithms are usually used to process the sensor data. These algorithms can determine which changes are caused by human contact and which are caused by impurities based on the change pattern of the capacitance. However, the existing technology still has some problems in practical applications. For example, the filtering or correction algorithms often require complex calculations, which not only increases the burden on the hardware, but may also affect the speed of the response.
[0005] Therefore, a technical solution is needed to improve the existing touch device and control method thereof. Summary of the invention
[0006] In view of the above problems, the present invention provides a touch control device, comprising:
[0007] A mechanical sensor that can sense mechanical actions applied to it;
[0008] a contact sensor capable of sensing contact / proximity of a human body; and
[0009] The control circuit is connected to the mechanical sensor and the contact sensor, and can determine the working state of the touch control device based on the detection results of the mechanical sensor and the contact sensor.
[0010] Optionally, the control circuit can determine that the touch control device is triggered when it is detected that both the mechanical sensor and the contact sensor are triggered within a preset time.
[0011] Optionally, the sensing end of the contact sensor is arranged at the periphery of the sensing end of the mechanical sensor.
[0012] Optionally, the sensing end of the contact sensor is arranged at the lower side of the sensing end of the mechanical sensor.
[0013] Optionally, the control circuit includes: a multiplexer, an information sensing circuit, an information processing circuit and a working state determination circuit, the input end of the multiplexer is configured to be connected to the output ends of the contact sensor and the mechanical sensor, the output end of the multiplexer is connected to the input end of the information sensing circuit, the output end of the information sensing circuit is connected to the input end of the information processing circuit, and the output end of the information processing circuit is connected to the input end of the working state determination circuit.
[0014] Optionally, the control circuit includes a first circuit and a second circuit, the first circuit can receive and process the detection results of the contact sensor, and the first circuit is arranged close to the contact sensor, and the second circuit can receive and process the detection results of the mechanical sensor, and the second circuit is arranged close to the mechanical sensor.
[0015] Optionally, the control circuit is arranged close to the mechanical sensor and is multiplexed for the mechanical sensor and the contact sensor.
[0016] In order to achieve the above-mentioned object of the invention, the present application provides a control method of a touch device, comprising the steps of:
[0017] Detect whether the mechanical sensor is triggered, and detect whether the contact sensor is triggered; if both are triggered, determine that the touch control device is triggered, if not, determine that the touch control device is not triggered.
[0018] In order to achieve the above-mentioned object of the invention, the present application provides a control method of a touch device, comprising the steps of:
[0019] Detect whether the mechanical sensor and the contact sensor are triggered synchronously / simultaneously; if so, determine that the touch control device is triggered; if not, determine that the touch control device is not triggered.
[0020] In order to achieve the above-mentioned object of the invention, the present application provides a control method of a touch device, comprising the steps of:
[0021] Detecting whether the mechanical sensor is triggered;
[0022] If so, detecting whether the contact sensor is triggered;
[0023] If so, it is determined that the touch control device is triggered; if not, it is determined that the touch control device is not triggered.
[0024] In order to achieve the above-mentioned object of the invention, the present application provides a control method of a touch device, comprising the steps of:
[0025] Detecting whether the mechanical sensor and the contact sensor are triggered in a predetermined cycle;
[0026] If the mechanical sensor and the contact sensor are both triggered within a predetermined period, it is determined that the touch control device is triggered; otherwise, it is determined that the touch control device is not triggered.
[0027] In order to achieve the above-mentioned object of the invention, the present application provides a chip integrating the control circuit described above.
[0028] In summary, the touch control device and the control method thereof provided by the present invention have at least the following technical effects:
[0029] First, logically, if a person performs a mechanical action of touch, it must involve body parts touching the device. Therefore, it is reasonable and effective to use a contact sensor to assist a capacitive mechanical sensor to distinguish between mechanical action and impurity interference.
[0030] Secondly, contact sensors and capacitive mechanical sensors are both capacitive sensors and belong to the same category. Therefore, the circuits (or chips) inside the touch device that process sensor signals process them in a similar or even identical manner, which helps to simplify the design of the circuits (or chips), or the same circuit (or chip) can be reused to process the two types of sensors, which solves the problem of false triggering with almost no additional hardware cost.
[0031] Third, the contact sensor is the simplest parallel plate capacitor structure ( Figure 3 ), and it is a passive device (i.e., it does not consume energy itself), which makes it possible to solve the false triggering problem while introducing almost no additional energy consumption cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 It is a principle structure diagram of a touch control device in the prior art.
[0033] Figure 2This is the principle structure diagram of the capacitive mechanical sensor.
[0034] Figure 3 This is a schematic diagram of the principle structure of a capacitive mechanical sensor when it is falsely triggered.
[0035] Figure 4 It is a schematic diagram of the circuit structure of a capacitive touch sensor.
[0036] Figure 5 It is a schematic diagram of the structure of a touch control device provided in an embodiment of the present invention.
[0037] Figure 6 It is a schematic diagram of the structure of a touch control device provided in an embodiment of the present invention.
[0038] Figure 7 It is a schematic diagram of the structure of a control method of a touch device provided in an embodiment of the present invention.
[0039] Figure 8 It is a schematic diagram of the circuit structure of a control circuit in a touch control device provided in an embodiment of the present invention.
[0040] Fig. 9 yes Figure 7 Schematic diagram of sensor detection timing corresponding to the control method of the touch control device.
[0041] Fig.10 It is a schematic diagram of the structure of a touch control device provided in an embodiment of the present invention.
[0042] Fig.11 It is a schematic diagram of the structure of a touch control device provided in an embodiment of the present invention.
[0043] Fig.12 It is a schematic diagram of the structure of a control method of a touch device provided in an embodiment of the present invention.
[0044] Fig.13 yes Fig.12 Schematic diagram of sensor detection timing corresponding to the control method of the touch control device.
[0045] Fig.14 It is a schematic diagram of the structure of a control method of a touch device provided in an embodiment of the present invention.
[0046] Fig.15 yes Fig.14 Schematic diagram of sensor detection timing corresponding to the control method of the touch control device.
[0047] Fig.16 It is a schematic diagram of the structure of a control method of a touch device provided in an embodiment of the present invention.
[0048] Fig.17 yes Fig.16Schematic diagram of sensor detection timing corresponding to the control method of the touch control device.
[0049] Fig.18 It is a schematic diagram of the circuit structure of a control circuit in a touch control device provided in an embodiment of the present invention.
[0050] Fig.19 It is a schematic diagram of the structure of a touch control device provided in an embodiment of the present invention.
[0051] Fig. 20 It is a schematic diagram of the structure of a touch control device provided in an embodiment of the present invention.
[0052] Fig.21 It is a schematic diagram of the circuit structure of an information sensing circuit in a control circuit provided in an embodiment of the present invention.
[0053] Fig. 22 It is a schematic diagram of the circuit structure of an information sensing circuit in a control circuit provided in an embodiment of the present invention. DETAILED DESCRIPTION
[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0055] like Figure 4 As shown in the figure, it is a common structure of capacitive touch sensor (only as an example, not all touch sensors have this structure). The structure consists of 4 layers, from bottom to top, they are metal layer, dielectric layer, metal layer, and insulating cover plate; among them, the metal layer under the insulating cover plate is divided into three sections, the left and right sections are grounded together with the bottom metal layer, and the metal in the middle section is the sensing electrode of the capacitor, and a coupling capacitor C0 is formed between the sensing electrode and the grounded metal. The sensing principle is as follows: a grounded object (the example in the figure is the human body) that is close to or in contact with the insulating cover plate will attract electric field lines on the contact surface and induce a capacitance CS. Usually CS is very small, so even if the human body itself has a capacitance CB (CB>>CS), the capacitance value of CS and CB in series is also similar to the size of CS, which is then connected in parallel with C0. Therefore, the contact event causes an increase in the total capacitance CTOT, and the increase is CS. This is the principle of the touch sensor. In addition, it should be known that the touch sensor based on this principle can also detect contact types that include air contact, that is, it can be used as a proximity sensor.
[0056] The total capacitance is calculated as:
[0057]
[0058] It can be seen that it is a passive simple capacitive sensor, and the prerequisite for sensing the incremental capacitance CS is the contact source that generates the contact event (for example Figure 1 The human body in the figure must share the same ground or reference potential with C0 (the common ground is equivalent to the special case of the common reference potential 0). Figure 3 The impurity-type interference source shown in does not meet this condition, so impurity deposition will not affect the sensing information of the capacitive touch sensor. This means that the touch sensor can help the mechanical sensor identify such common interference sources.
[0059] Based on this, Figure 5 As shown, this embodiment provides a touch device, including: a mechanical sensor 100, which can sense the mechanical action applied thereto;
[0060] a contact sensor 200 capable of sensing contact / proximity of a human body; and
[0061] The control circuit 300 is connected to the mechanical sensor 100 and the contact sensor 200 , and can determine the working state of the touch device based on the detection results of the mechanical sensor 100 and the contact sensor 200 .
[0062] Furthermore, the control circuit 300 can determine that the touch device is triggered when it is detected that both the mechanical sensor 100 and the contact sensor 200 are triggered within a preset time.
[0063] The mechanical sensor 100 and the contact sensor 200 are both capacitive sensors.
[0064] In this embodiment, the touch device is determined to be triggered when both the mechanical sensor 100 and the contact sensor 200 are triggered, thereby avoiding erroneous judgment of the touch device triggering caused by interference from impurities.
[0065] Optionally, this embodiment provides a control method for a touch device, comprising the steps of:
[0066] Detecting whether the mechanical sensor 100 is triggered, and detecting whether the contact sensor 200 is triggered;
[0067] If both are triggered, it is determined that the touch control device is triggered; if not, it is determined that the touch control device is not triggered.
[0068] The touch control device is usually a physical switch / pressure button. The touch control device mentioned in this embodiment is triggered, which means that the physical switch / pressure button receives the pressure action of the human body to drive the touch control device.
[0069] The touch device and control method thereof provided in this embodiment at least include the following technical effects:
[0070] First, logically, if a person performs a mechanical action of touch, it must involve body parts touching the device. Therefore, it is reasonable and effective to use a contact sensor to assist a capacitive mechanical sensor to distinguish between mechanical action and impurity interference.
[0071] Secondly, contact sensors and capacitive mechanical sensors are both capacitive sensors and belong to the same category. Therefore, the circuits (or chips) inside the touch device that process sensor signals process them in a similar or even identical manner, which helps to simplify the design of the circuits (or chips), or the same circuit (or chip) can be reused to process the two types of sensors, which solves the problem of false triggering with almost no additional hardware cost.
[0072] Third, the contact sensor is the simplest parallel plate capacitor structure ( Figure 3 ), and it is a passive device (i.e., it does not consume energy itself), which makes it possible to solve the false triggering problem while introducing almost no additional energy consumption cost.
[0073] Alternatively, if Figure 5 As shown, the sensing end of the contact sensor 200 is arranged at the periphery of the sensing end of the mechanical sensor 100. In this way, when the human body applies mechanical action to the mechanical sensor 100, the contact sensor 200 will detect the contact or approach of the human body first and be triggered. The control circuit 300 can comprehensively determine whether the touch device is triggered based on the triggering results of the contact sensor 200 and the mechanical sensor 100.
[0074] Alternatively, if Figure 6 As shown, the sensing end of the contact sensor 200 is arranged at the lower side of the sensing end of the mechanical sensor 100. In this way, when the human body applies mechanical action to the mechanical sensor 100, the contact sensor 200 will detect the contact or approach of the human body first and be triggered. Moreover, this design does not increase the size of the mechanical sensor 100 and the corresponding components, and can achieve more accurate triggering judgment without changing the specifications of the original switch or other components of the touch device.
[0075] Alternatively, if Figure 7 As shown, this embodiment provides a control method for a touch device, comprising the steps of:
[0076] Detect whether the mechanical sensor 100 and the contact sensor 200 are triggered synchronously / simultaneously;
[0077] If yes, it is determined that the touch device is triggered; if no, it is determined that the touch device is not triggered.
[0078] Optionally, corresponding to Figure 7 In the control method of the touch device, in this embodiment, as Figure 8 As shown, the control circuit 300 includes: a first information sensing circuit 10, a second information sensing circuit 20, a first information processing circuit 11, a second information processing circuit 21 and a working state determination circuit 4. The first information sensing circuit 10 is configured to be connected to the contact sensor 200 and to the first information processing circuit 11, and can receive the sensing signal of the contact sensor 200 and send the corresponding signal to the first information processing circuit 11. The second information sensing circuit 20 is configured to be connected to the mechanical sensor 100 and to the second information processing circuit 21, and can receive the sensing signal of the mechanical sensor 100 and send the corresponding signal to the second information processing circuit 21. The first information processing circuit 11 and the second information processing circuit 21 are connected to the working state determination circuit 4, and can determine whether the touch device is triggered based on the signal processed by the first information processing circuit 11 and the second information processing circuit 21.
[0079] Specifically, Fig. 9 As shown, the control circuit 300 continuously detects the contact sensor 200 and the mechanical sensor 100. When the control circuit detects that both the contact sensor and the mechanical sensor are triggered, the working state determination circuit determines that the touch device is triggered. If the contact sensor is not detected to be triggered but only the mechanical sensor is detected to be triggered, or the mechanical sensor is not detected to be triggered but only the contact sensor is detected to be triggered, then it is determined that the mechanical sensor is falsely triggered due to interference, and then the touch device is determined not to be triggered.
[0080] like Figure 7 The control method of the touch device shown Figure 8 The control circuit shown detects the mechanical sensor and the contact sensor simultaneously without missing any information, so the detection is accurate and reliable.
[0081] Correspondingly, if Fig.10 As shown, the control circuit 300 includes a first circuit 301 and a second circuit 302. The first circuit 301 integrates a first information sensing circuit 10 and a first information processing circuit 11, and the second circuit 302 integrates a second information sensing circuit 20 and a second information processing circuit 21. The working state determination circuit 4 can be integrated into the first circuit 301 or the second circuit 302, and this embodiment does not limit this. When the sensing end of the contact sensor 200 is set at the periphery of the mechanical sensor 100, the first circuit 301 and the second circuit 302 are correspondingly set at the corresponding sensor.
[0082] like Fig.11As shown, when the sensing end of the contact sensor 200 is arranged at the lower side of the mechanical sensor 100, the first circuit 301 and the second circuit 302 are correspondingly arranged at the corresponding sensors.
[0083] like Fig.12 As shown, this embodiment provides a control method for a touch device, comprising the steps of:
[0084] Detect whether the mechanical sensor is triggered;
[0085] If so, detect whether the contact sensor is triggered;
[0086] If yes, it is determined that the touch device is triggered; if no, it is determined that the touch device is not triggered.
[0087] like Fig.13 As shown, Fig.12 The timing diagram corresponding to the control method shown is that, first, the mechanical sensor works and continuously detects. When the mechanical sensor is triggered, the mechanical sensor stops detecting and the contact sensor starts detecting. Once the contact sensor is triggered, it is determined that the touch device is triggered. After the touch device is triggered, the mechanical sensor is restarted for detection.
[0088] like Fig.14 As shown, this embodiment provides a control method for a touch device, comprising the steps of:
[0089] Detect whether the contact sensor is triggered;
[0090] If so, detecting whether the mechanical sensor is triggered;
[0091] If yes, it is determined that the touch device is triggered; if no, it is determined that the touch device is not triggered.
[0092] like Fig.15 As shown, Fig.14 The timing diagram corresponding to the control method shown is that first, the contact sensor works and continuously detects. When the contact sensor is triggered, the contact sensor stops detecting and the mechanical sensor starts detecting. Once the mechanical sensor is triggered, it is determined that the touch device is triggered. After the touch device is triggered, the contact sensor is restarted for detection.
[0093] like Fig.16 As shown, this embodiment provides a control method for a touch device, comprising the steps of:
[0094] Detecting whether the mechanical sensor and the contact sensor are triggered in a predetermined cycle;
[0095] If the mechanical sensor and the contact sensor are both triggered within a predetermined period, it is determined that the touch control device is triggered; otherwise, it is determined that the touch control device is not triggered.
[0096] like Fig.17 As shown, Fig.16 In the timing diagram corresponding to the control method shown, the mechanical sensor and the contact sensor are operated alternately in each round (cycle). If it is detected that both the mechanical sensor and the contact sensor are triggered in one round, the touch sensor is determined to be triggered. If it is not detected that both are triggered in one round, the touch sensor is determined to be not triggered.
[0097] Optionally, corresponding to Fig.12 , Fig.14 , Fig.16 The control method shown is as follows Fig.18 As shown, the control circuit 300 includes: a multiplexer 310, an information sensing circuit 320, an information processing circuit 330 and a working state determination circuit 340. The input end of the multiplexer 310 is configured to be connected to the output ends of the contact sensor 200 and the mechanical sensor 100, the output end of the multiplexer 310 is connected to the input end of the information sensing circuit 320, the output end of the information sensing circuit 320 is connected to the input end of the information processing circuit 330, and the output end of the information processing circuit 330 is connected to the input end of the working state determination circuit 340. The multiplexer 310 is used to select the contact sensor 200 or the mechanical sensor 100 at a certain moment and send it to the subsequent circuit link (information sensing circuit); the information sensing circuit 320 can sense and convert the sensor signal and convert it into a paradigm (such as a digital signal) that is convenient for the circuit to process, and then the information processing circuit 330 processes, judges and controls it, while the working state determination circuit 340 determines whether the touch device is triggered, so as to determine whether the touch device is triggered. Fig.12 For example, the mechanical sensor is enabled to the control circuit. When it is detected that the mechanical sensor is triggered, the contact sensor is enabled to the control circuit. At this time: if the contact sensor is triggered and the mechanical sensor is triggered, or the mechanical sensor is triggered and the contact sensor is triggered, it is determined that the touch device is not triggered, and the mechanical sensor is enabled to the control circuit; if it is detected that both the mechanical sensor and the contact sensor are triggered, it is determined that the touch device is triggered, and the mechanical sensor is enabled to the control circuit until the triggering event ends.
[0098] Fig.12 , Fig.14 , Fig.16 The control method of the touch device shown Fig.18 The control circuit of the touch control device shown adopts a time-division multiplexing signal processing method and multiplexes the circuits, thereby saving hardware costs, not only saving costs but also reducing power consumption.
[0099] Accordingly, if Fig.19As shown, when the sensing end of the contact sensor 200 is set on the periphery of the mechanical sensor 100, the control circuit 300 is reused by the contact sensor 200 and the mechanical sensor 100. It can be set near the mechanical sensor 100, or at other locations that are convenient for configuration / operation. This embodiment does not limit the specific location of its setting.
[0100] like Fig. 20 As shown, when the sensing end of the contact sensor 200 is set on the lower side of the mechanical sensor 100, the control circuit 300 is reused by the contact sensor 200 and the mechanical sensor 100. It can be set near the mechanical sensor 100, or other positions that are convenient for configuration / operation. This embodiment does not limit the specific position of its setting.
[0101] like Fig.21 As shown, the specific implementation method of the information sensing circuit may include a capacitance-voltage conversion circuit 001 and an analog-to-digital conversion circuit 002. The capacitance-voltage conversion circuit 001 is used to connect to the output end of the contact sensor / mechanical sensor to convert the capacitance signal into a voltage signal, and the analog-to-digital conversion circuit 002 can convert the voltage signal into a digital signal that is easy for subsequent circuits to process.
[0102] like Fig. 22 As shown, the specific implementation method of the information sensing circuit can also include an oscillation circuit 003 and a logic circuit 004. The oscillation circuit 003 is used to connect to the output end of the contact sensor / mechanical sensor to convert the output capacitance of the sensor into a corresponding oscillation frequency. The logic circuit 004 can process the signal and transmit it to the subsequent circuit.
[0103] Optionally, this embodiment provides a chip integrating the control circuit described above, and the touch device is controlled based on the chip, which can accurately detect whether the touch device is triggered with low hardware cost and power consumption, and eliminate interference from false triggering.
[0104] So far, the technical solution of the present invention has been described in conjunction with the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to the above-mentioned specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims
1. A touch device, It is characterized in that include: Mechanical sensors, which can sense mechanical actions applied to them; Contact sensors, which can sense human contact / proximity; as well as The control circuit is connected to the mechanical sensor and the contact sensor, and can determine the working state of the touch control device based on the detection results of the mechanical sensor and the contact sensor.
2. The touch control device according to claim 1, It is characterized in that The control circuit can determine that the touch control device is triggered when it is detected that both the mechanical sensor and the contact sensor are triggered within a preset time.
3. The touch control device according to claim 1 or 2, It is characterized in that The sensing end of the contact sensor is arranged at the periphery of the sensing end of the mechanical sensor.
4. The touch control device according to claim 1 or 2, It is characterized in that The sensing end of the contact sensor is arranged at the lower side of the sensing end of the mechanical sensor.
5. The touch control device according to claim 1 or 2, It is characterized in that The control circuit includes: a multiplexer, an information sensing circuit, an information processing circuit and a working state determination circuit, the input end of the multiplexer is configured to be connected to the output ends of the contact sensor and the mechanical sensor, the output end of the multiplexer is connected to the input end of the information sensing circuit, the output end of the information sensing circuit is connected to the input end of the information processing circuit, and the output end of the information processing circuit is connected to the input end of the working state determination circuit.
6. The touch control device according to claim 1 or 2, It is characterized in that The control circuit includes a first circuit and a second circuit. The first circuit can receive and process the detection results of the contact sensor, and the first circuit is arranged close to the contact sensor. The second circuit can receive and process the detection results of the mechanical sensor, and the second circuit is arranged close to the mechanical sensor.
7. The touch control device according to claim 5, It is characterized in that The control circuit is arranged close to the mechanical sensor and is multiplexed for the mechanical sensor and the contact sensor.
8. A method for controlling a touch device, applied to control the touch device according to any one of claims 1 to 7, It is characterized in that Includes steps: Detecting whether the mechanical sensor is triggered, and detecting whether the contact sensor is triggered; If both are triggered, it is determined that the touch control device is triggered; if not, it is determined that the touch control device is not triggered.
9. A method for controlling a touch device, applied to control the touch device according to any one of claims 1 to 7, It is characterized in that Includes steps: Detecting whether the mechanical sensor and the contact sensor are triggered synchronously / simultaneously; If so, it is determined that the touch control device is triggered; if not, it is determined that the touch control device is not triggered.
10. A method for controlling a touch device, applied to control the touch device according to any one of claims 1 to 7, It is characterized in that Includes steps: Detecting whether the mechanical sensor is triggered; If so, detecting whether the contact sensor is triggered; If so, it is determined that the touch control device is triggered; if not, it is determined that the touch control device is not triggered.
11. A method for controlling a touch device, applied to control the touch device according to any one of claims 1 to 7, It is characterized in that Includes steps: Detecting whether the mechanical sensor and the contact sensor are triggered in a predetermined cycle; If the mechanical sensor and the contact sensor are both triggered within a predetermined period, it is determined that the touch control device is triggered; otherwise, it is determined that the touch control device is not triggered.
12. A chip, It is characterized in that The control circuit according to claim 5 is integrated.