Touch method, touch switch and switch module

Abstract

The application relates to a touch control method, a touch control switch and a switch module. The touch control method comprises the following steps: receiving a first touch control signal, wherein the first touch control signal comprises a first signal corresponding to an effective area in a touch control button and a second signal corresponding to an auxiliary area in the touch control button; determining whether the first signal is a valid signal and determining whether the second signal is a valid signal; and responding to the first touch control signal if the first signal is a valid signal and the second signal is an invalid signal. The method can improve the anti-interference performance of the touch control switch.

Description

Technical Field

[0001] This application relates to the field of switch technology, and in particular to a touch control method, a touch switch, and a switch module. Background Technology

[0002] With the development of science and technology and the improvement of people's living standards, the requirements for automotive intelligence are also getting higher and higher. Nowadays, touch switches are widely used in vehicle door handle switches, window lift switches and automotive control panels.

[0003] In traditional technology, most touch switches use capacitive touch technology. However, these touch switches are easily affected by the environment, which often leads to false triggering or ineffective touch. Therefore, traditional touch switches have a weak anti-interference capability. Summary of the Invention

[0004] Therefore, it is necessary to provide a touch method, touch switch, and switch module that can improve the anti-interference capability of touch switches in response to the above-mentioned technical problems.

[0005] In a first aspect, this application provides a touch control method, which includes: receiving a first touch signal, the first touch signal including a first signal corresponding to an effective area of ​​a touch button and a second signal corresponding to an auxiliary area of ​​a touch button; determining whether the first signal is a valid signal and determining whether the second signal is a valid signal; and responding to the first touch signal if the first signal is a valid signal and the second signal is an invalid signal.

[0006] In one embodiment, the first signal includes a first pressure signal and a first capacitance signal. Determining whether the first signal is a valid signal includes: determining whether the first pressure signal is a valid signal and determining whether the first capacitance signal is a valid signal; if both the first pressure signal and the first capacitance signal are valid signals, then the first signal is determined to be a valid signal.

[0007] In one embodiment, the second signal includes a second pressure signal and a second capacitance signal. Determining whether the second signal is a valid signal includes: determining whether the second pressure signal is a valid signal and determining whether the second capacitance signal is a valid signal; if both the second pressure signal and the second capacitance signal are valid signals, or if the second pressure signal is a valid signal and the second capacitance signal is an invalid signal, then the second signal is determined to be a valid signal.

[0008] In one embodiment, if the first signal is a valid signal and the second signal is an invalid signal, then responding to the first touch signal includes: if the first signal is a valid signal and the second signal is an invalid signal, then at a first preset time interval, receiving the pressure signal and capacitance signal corresponding to the valid area, determining whether the pressure signal is a valid signal, and determining whether the capacitance signal is a valid signal; if both the pressure signal and the capacitance signal are valid signals, then responding to the first touch signal.

[0009] In one embodiment, the touch method further includes: determining whether a first signal is a valid signal and whether a second touch signal is received within a second preset time period before determining whether a second signal is a valid signal; if not, then performing the steps of determining whether the first signal is a valid signal and determining whether the second signal is a valid signal.

[0010] Secondly, this application also provides a touch switch, which includes: a substrate; a first sensor module and a second sensor module respectively disposed on an effective area and an auxiliary area on the substrate; and a chip connected to the first sensor module and the second sensor module respectively. The chip is used to receive a first signal sent by the first sensor module and a second signal sent by the second sensor module, determine whether the first signal is a valid signal, and determine whether the second signal is a valid signal. If the first signal is a valid signal and the second signal is an invalid signal, then the chip responds to the first touch signal.

[0011] In one embodiment, the first sensor module includes a first pressure sensor and a first capacitance sensor; a chip is used to receive a first pressure signal sent by the first pressure sensor and a first capacitance signal sent by the first capacitance sensor, determine whether the first pressure signal is a valid signal, and determine whether the first capacitance signal is a valid signal. If both the first pressure signal and the first capacitance signal are valid signals, then the first signal is determined to be a valid signal.

[0012] In one embodiment, the second sensor module includes a second pressure sensor and a second capacitance sensor; a chip is used to receive a second pressure signal sent by the second pressure sensor and a second capacitance signal sent by the second capacitance sensor, determine whether the second pressure signal is a valid signal, and determine whether the second capacitance signal is a valid signal; if both the second pressure signal and the second capacitance signal are valid signals, or if the second pressure signal is a valid signal and the second capacitance signal is an invalid signal, then the second signal is determined to be a valid signal.

[0013] In one embodiment, the touch switch further includes a first resistor and / or a second resistor; when the touch switch includes only the first resistor, the first resistor is disposed between the chip and the first sensor module; when the touch switch includes only the second resistor, the second resistor is disposed between the chip and the second sensor module; when the touch switch includes both the first resistor and the second resistor, the first resistor is disposed between the chip and the first sensor module, and the second resistor is disposed between the chip and the second sensor module.

[0014] In one embodiment, a ground layer with a mesh structure is provided between the substrate and the first sensor module, and / or, a ground layer with a mesh structure is provided between the substrate and the second sensor module.

[0015] In one embodiment, a ground layer with a mesh structure is disposed around the outside of the first sensor module, and / or, a ground layer with a mesh structure is disposed around the outside of the second sensor module.

[0016] Thirdly, this application also provides a switch module, which includes a main control board, a linear motor, and a touch switch as described in any one of the second aspects above; the main control board is connected to the linear motor and the touch switch respectively; the touch switch sends a valid touch signal to the main control board in response to a first touch signal; the main control board controls the linear motor to vibrate based on the valid touch signal.

[0017] Fourthly, this application also provides a touch device, comprising: a receiving module for receiving a first touch signal, the first touch signal including a first signal corresponding to an effective area of ​​a touch button and a second signal corresponding to an auxiliary area of ​​a touch button; a judging module for determining whether the first signal is a valid signal and whether the second signal is a valid signal; and a responding module for responding to the first touch signal if the first signal is a valid signal and the second signal is an invalid signal.

[0018] In one embodiment, the first signal includes a first pressure signal and a first capacitance signal. The determination module is specifically used to determine whether the first pressure signal is a valid signal and whether the first capacitance signal is a valid signal. If both the first pressure signal and the first capacitance signal are valid signals, then the first signal is determined to be a valid signal.

[0019] In one embodiment, the second signal includes a second pressure signal and a second capacitance signal. The determination module is specifically used to determine whether the second pressure signal is a valid signal and whether the second capacitance signal is a valid signal. If both the second pressure signal and the second capacitance signal are valid signals, or if the second pressure signal is a valid signal and the second capacitance signal is an invalid signal, then the second signal is determined to be a valid signal.

[0020] In one embodiment, the response module is specifically configured to, if the first signal is a valid signal and the second signal is an invalid signal, receive the pressure signal and capacitance signal corresponding to the valid area at intervals of a first preset time, determine whether the pressure signal is a valid signal, and determine whether the capacitance signal is a valid signal; if both the pressure signal and the capacitance signal are valid signals, then respond to the first touch signal.

[0021] In one embodiment, the determination module is further configured to determine whether the first signal is a valid signal and whether the second touch signal is received within a second preset time period before determining whether the second signal is a valid signal; if not, the steps of determining whether the first signal is a valid signal and determining whether the second signal is a valid signal are executed.

[0022] Fifthly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the method described in any one of the first aspects above.

[0023] In a sixth aspect, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any one of the first aspects above.

[0024] In a seventh aspect, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the method described in any one of the first aspects above.

[0025] The aforementioned touch control method, touch switch, and switch module receive a first touch signal, which includes a first signal corresponding to the effective area of ​​the touch button and a second signal corresponding to the auxiliary area of ​​the touch button. Then, they determine whether the first signal is a valid signal and whether the second signal is a valid signal. If the first signal is a valid signal and the second signal is an invalid signal, then they respond to the first touch signal. In this way, the response is only made when the signal in the effective area is valid and the signal in the auxiliary area is invalid. This eliminates the influence of the environment on the touch switch and improves the anti-interference capability of the touch switch. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1This is a schematic diagram of a self-capacitance detection principle in one embodiment;

[0028] Figure 2 This is a schematic diagram of a mutual capacitance detection principle in one embodiment;

[0029] Figure 3 This is a flowchart illustrating a touch control method in one embodiment;

[0030] Figure 4 This is a schematic diagram showing the arrangement of a capacitive sensor and a pressure sensor in one embodiment;

[0031] Figure 5 This is a schematic diagram of a touch switch in one embodiment;

[0032] Figure 6 This is a schematic diagram of a switch module in one embodiment;

[0033] Figure 7 This is a structural block diagram of a touch device in one embodiment;

[0034] Figure 8 This is a schematic structure of a chip in one embodiment;

[0035] Figure 9 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] Touch switches are now widely used in vehicles, including door handles, window switches, and control panels. Traditional touch solutions can be broadly categorized into four types based on their sensing methods: resistive, capacitive, infrared, and ultrasonic. Currently, the vast majority of touch switches utilize capacitive touch technology. Capacitive touch technology further subdivides into self-capacitance and mutual capacitance detection methods, which differ in their principles and applications.

[0038] The principle of self-capacitance detection is as follows: Figure 1 As shown, it uses an electrode, and the touch chip measures the capacitance Cx between the electrode and ground. When a finger is placed on the touch switch, the capacitance measured by the touch chip increases. This self-capacitance sensing is best suited for single-point touch sensors, such as buttons.

[0039] The principle of mutual capacitance detection is as follows: Figure 2As shown, it uses two electrodes, one called the transmitting electrode TX and the other the receiving electrode RX. The touch chip measures the capacitance Cx between the transmitting electrode TX and the receiving electrode RX. Specifically, the touch chip provides a digital voltage (a signal switching between the power supply voltage VDD and ground GND) to the transmitting electrode TX and measures the charge received on the receiving electrode RX. The charge received on the receiving electrode RX is proportional to the capacitance Cx between the two electrodes. When a finger is placed between the transmitting electrode TX and the receiving electrode RX, the capacitance Cx decreases, and the charge received on the receiving electrode RX also decreases, thus reducing the charge measured by the touch chip. This mutual capacitance sensing is best suited for multi-touch systems, such as touchscreens and touchpads.

[0040] However, applying the aforementioned touch switches to automotive exteriors is highly susceptible to environmental influences, often resulting in false triggering or unresponsive touches. Specifically, the following situations may occur:

[0041] 1. Exterior trim and interior components near windows are prone to water droplets or flow. In such scenarios, capacitive touch controls are prone to malfunctions, such as door handles, tailgate switches, and window switches. They are also prone to misjudgment in rainy or car-washing situations.

[0042] 2. Because the detection principle of capacitive touch is to detect the change in the dielectric constant of the surrounding environment in a short time by using PAD (pad) to determine whether there is a touch action, it is easy to make a false judgment when there is an object with low impedance or dielectric constant similar to that of the human body (such as aluminum, iron, etc.) near it.

[0043] 3. Because capacitive touch uses common-mode detection and the capacitive detection electrode is similar to an antenna, it is easy to misunderstand power supply ripple and high-frequency noise interference. In particular, the anti-interference effect of radio frequency noise, power line and ground line noise in EMC (Electro Magnetic Compatibility) testing is not good.

[0044] In addition, there are pressure-sensitive touch switches and pressure-capacitive touch switches. For pressure-sensitive touch switches, when a car goes over a speed bump or vibrates for other reasons, the pressure-sensitive touch switch senses the pressure, resulting in false touch. For pressure-capacitive touch switches, which have a pressure sensor and a capacitor in the effective touch area, during heavy rinsing, it is inevitable that the pressure value and capacitance will be triggered simultaneously, resulting in false touch.

[0045] Therefore, it is necessary to propose effective technical means to solve the problem that touch switches are easily affected by the environment. The technical solution of this application and how it solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0046] In one embodiment, such as Figure 3 As shown, a touch control method is provided. This embodiment uses the application of this method to a touch switch as an example for illustration. The touch switch includes: a substrate; a first sensor module and a second sensor module respectively disposed on an effective area and an auxiliary area on the substrate; and chips respectively connected to the first sensor module and the second sensor module. The method includes the following steps 301, 302, and 303:

[0047] Step 301: Receive a first touch signal, which includes a first signal corresponding to the effective area of ​​the touch button and a second signal corresponding to the auxiliary area of ​​the touch button.

[0048] The touch button is a device belonging to the category of touch switches, and it includes a substrate; the first signal includes a first pressure signal and / or a first capacitance signal; the second signal includes a second pressure signal and / or a second capacitance signal. The pressure signal is used to indicate the pressure of an object (e.g., a finger) on the touch switch, and the capacitance signal is used to indicate the capacitance between the object and the touch switch.

[0049] Optionally, the chip receives a first signal sent by a first sensor module and a second signal sent by a second sensor module. The first sensor module includes a first pressure sensor and / or a first capacitance sensor, wherein the first pressure sensor is used to send a first pressure signal and the first capacitance sensor is used to send a first capacitance signal; the second sensor module includes a second pressure sensor and / or a second capacitance sensor, wherein the second pressure sensor is used to send a second pressure signal and the second capacitance sensor is used to send a second capacitance signal. Furthermore, there can be multiple second sensor modules; the number of second sensor modules is not limited here.

[0050] Step 302: Determine whether the first signal is a valid signal, and determine whether the second signal is a valid signal.

[0051] The determination of whether the first signal is a valid signal includes: when the first signal only includes the first pressure signal, determining whether the first pressure signal is a valid signal; if the first pressure signal is a valid signal, then determining that the first signal is a valid signal; when the first signal only includes the first capacitance signal, determining whether the first capacitance signal is a valid signal; if the first capacitance signal is a valid signal, then determining that the first signal is a valid signal; when the first signal includes both the first pressure signal and the first capacitance signal, determining whether the first pressure signal is a valid signal and whether the first capacitance signal is a valid signal; if both the first pressure signal and the first capacitance signal are valid signals, then determining that the first signal is a valid signal.

[0052] It is worth mentioning that the first sensor module is provided with only a first pressure sensor when the first signal only includes the first pressure signal; the first sensor module is provided with only a first capacitance sensor when the first signal only includes the first capacitance signal; and the first sensor module is provided with both a first pressure sensor and a first capacitance sensor when the first signal includes both the first pressure signal and the first capacitance signal.

[0053] Optionally, determining whether the first pressure signal is a valid signal includes: determining whether the first pressure signal meets the first pressure threshold range; if yes, the first pressure signal is a valid signal; if no, the first pressure signal is an invalid signal.

[0054] Determining whether the first capacitor signal is a valid signal includes: determining whether the first capacitor signal meets the first capacitor threshold range; if yes, the first capacitor signal is a valid signal; if no, the first capacitor signal is an invalid signal.

[0055] The determination of whether the second signal is a valid signal includes: when the second signal only includes the second pressure signal, determining whether the second pressure signal is a valid signal; if the second pressure signal is a valid signal, then the second signal is determined to be a valid signal; when the second signal only includes the second capacitance signal, determining whether the second capacitance signal is a valid signal; if the second capacitance signal is a valid signal, then the second signal is determined to be a valid signal; when the second signal includes both the second pressure signal and the second capacitance signal, determining whether the second pressure signal is a valid signal and whether the second capacitance signal is a valid signal; if both the second pressure signal and the second capacitance signal are valid signals, then the second signal is determined to be a valid signal; and when the second signal includes both the second pressure signal and the second capacitance signal, determining whether the second pressure signal is a valid signal and whether the second capacitance signal is a valid signal; if the second pressure signal is a valid signal and the second capacitance signal is an invalid signal, then the second signal is determined to be a valid signal.

[0056] It is worth mentioning that the implementation where the second signal only includes the second pressure signal is an embodiment where the second sensor module is equipped with only the second pressure sensor; the implementation where the second signal only includes the second capacitance signal is an embodiment where the second sensor module is equipped with only the second capacitance sensor; and the implementation where the second signal includes both the second pressure signal and the second capacitance signal is an embodiment where the second sensor module is equipped with both the second pressure sensor and the second capacitance sensor.

[0057] Optionally, determining whether the second pressure signal is a valid signal includes: determining whether the second pressure signal meets the second pressure threshold range, or whether it is not 0; if yes, the second pressure signal is a valid signal; if no, the second pressure signal is an invalid signal.

[0058] Determining whether the second capacitor signal is a valid signal includes: determining whether the second capacitor signal meets the second capacitor threshold range, or whether it is not 0; if yes, the second capacitor signal is a valid signal; if no, the second capacitor signal is determined to be an invalid signal.

[0059] Step 303: If the first signal is a valid signal and the second signal is an invalid signal, then respond to the first touch signal.

[0060] Optionally, if the chip determines that the first signal is a valid signal and the second signal is an invalid signal according to step 301 above, it sends a valid touch signal to the vehicle host or to the main control board, and then the main control board sends the valid touch signal to the vehicle host.

[0061] The aforementioned touch control method, touch switch, and switch module receive a first touch signal, which includes a first signal corresponding to the effective area of ​​the touch button and a second signal corresponding to the auxiliary area of ​​the touch button. Then, they determine whether the first signal is a valid signal and whether the second signal is a valid signal. If the first signal is a valid signal and the second signal is an invalid signal, then they respond to the first touch signal. In this way, the response is only made when the signal in the effective area is valid and the signal in the auxiliary area is invalid. This eliminates the influence of the environment on the touch switch and improves the anti-interference capability of the touch switch.

[0062] In one embodiment, the first signal includes a first pressure signal and a first capacitance signal. Determining whether the first signal is a valid signal includes: determining whether the first pressure signal is a valid signal and determining whether the first capacitance signal is a valid signal; if both the first pressure signal and the first capacitance signal are valid signals, then the first signal is determined to be a valid signal.

[0063] In this embodiment, compared to judging a single first pressure signal or a single first capacitance signal, if both the first pressure signal and the first capacitance signal are valid signals, the first signal is determined to be a valid signal, which further eliminates the influence of the environment on the touch switch, thereby improving the anti-interference capability of the touch switch.

[0064] In one embodiment, the second signal includes a second pressure signal and a second capacitance signal. Determining whether the second signal is a valid signal includes: determining whether the second pressure signal is a valid signal and determining whether the second capacitance signal is a valid signal; if both the second pressure signal and the second capacitance signal are valid signals, or if the second pressure signal is a valid signal and the second capacitance signal is an invalid signal, then the second signal is determined to be a valid signal.

[0065] In this embodiment, the second signal is determined to be a valid signal when both the second pressure signal and the second capacitance signal are valid signals, or when the second pressure signal is valid and the second capacitance signal is invalid. In other words, the second signal is invalid in all other cases except in this case. This can prevent the touch switch from not responding when pressed on a rainy day.

[0066] To facilitate understanding of this application, the above-mentioned touch method is described below by way of example.

[0067] like Figure 4 The diagram illustrates the arrangement of a capacitive sensor and a pressure sensor, where P represents a capacitive sensor and T represents a pressure sensor. Positions A, B, C, D, and E represent the sensor locations. Position A is the effective area, containing one capacitive sensor and one pressure sensor. Positions B, C, D, and E are auxiliary areas, each containing at least one capacitive sensor and one pressure sensor. These sensors can be arranged regularly or irregularly, such as having one capacitive sensor and one pressure sensor at each of positions B, C, D, and E.

[0068] The capacitive and pressure sensors in the effective area are represented by P1 and T1, respectively, and the capacitive and pressure sensors in the auxiliary area are represented by P2 and T2, respectively. When the pressure signal sent by the pressure sensor is a valid signal, it is represented by 1, and when it is an invalid signal, it is represented by 0. Similarly, when the capacitance signal sent by the capacitive sensor is a valid signal, it is represented by 1, and when it is an invalid signal, it is represented by 0.

[0069] The determination of whether a pressure signal is valid or invalid is based on a pressure threshold range. If the pressure signal is greater than or equal to 4 N and less than or equal to 8 N, it is considered valid; if it is less than 4 N or greater than 8 N, it is considered invalid. Similarly, the determination of whether a capacitance signal is valid or invalid is based on a capacitance threshold range.

[0070] When using dual pressure and dual capacitance, meaning the effective area has one capacitance sensor and one pressure sensor, and the auxiliary area has one capacitance sensor and one pressure sensor, the touch logic is as follows:

[0071] 1) T1=0, touch is ineffective

[0072] When the pressure signal corresponding to the pressure sensor in the effective area is an invalid signal, even if P1=1, P2=0, and T2=0, this type of trigger is still determined to be an invalid trigger, and the touch switch does not respond, that is, it does not output a valid touch signal.

[0073] 2) P1=0, touch is ineffective

[0074] When the capacitance signal corresponding to the capacitance sensor in the effective area is an invalid signal, even if T1=1, P2=0, and T2=0, this type of trigger is still determined to be an invalid trigger, and the touch switch does not output a valid touch signal.

[0075] 3) When T1=1, P1=1, T2=0, P2=0, the pressure test is effective.

[0076] When both the pressure signal from the pressure sensor in the effective area and the capacitance signal from the capacitance sensor are valid, the trigger is considered valid, and the touch switch responds, that is, it outputs a valid touch signal.

[0077] 4) T1=1, P1=1, T2=1, P2=1, touch is ineffective.

[0078] When all pressure and capacitance signals corresponding to the effective area and auxiliary area are valid, it indicates that the triggering is due to a scenario such as car washing, and the trigger is determined to be invalid. The touch switch does not output a valid touch signal.

[0079] 5) T1=1, P1=1, T2=0, P2=1, pressure application is effective.

[0080] When both the pressure signal and capacitance signal in the effective area are valid, the pressure signal in the auxiliary area is invalid, and the capacitance signal is valid. This trigger is considered valid, and the touch switch outputs a valid touch signal. Based on this touch logic, it can avoid situations where the user touches the effective area and the touch switch cannot be effectively triggered (e.g., unable to unlock the vehicle on a rainy day) when the auxiliary area continuously outputs a capacitance signal (e.g., there are water droplets or other interference).

[0081] 6) T1=1, P1=1, T2=1, P2=0, touch is invalid.

[0082] When the pressure signal corresponding to the pressure sensor in the auxiliary area is a valid signal, it indicates that the triggering is caused by a scenario such as car washing or heavy rain. Even if T1=1 and P1=1, this type of triggering is still considered invalid, and the touch switch does not output a valid touch signal.

[0083] Based on the above touch logic, the touch switch only responds under the following conditions: when both the pressure signal from the pressure sensor and the capacitance signal from the capacitance sensor in the effective area are valid, and both the pressure signal from the pressure sensor and the capacitance signal from the capacitance sensor in the auxiliary area are invalid; and when both the pressure signal from the pressure sensor and the capacitance signal from the capacitance sensor in the effective area are valid, the pressure signal from the pressure sensor in the auxiliary area is invalid, and the capacitance sensor is valid. This eliminates invalid touch pressure caused by other environmental factors, thereby improving the touch switch's anti-interference capability.

[0084] In one embodiment, if the first signal is a valid signal and the second signal is an invalid signal, then responding to the first touch signal includes: if the first signal is a valid signal and the second signal is an invalid signal, then after a first preset time interval, receiving the pressure signal and capacitance signal corresponding to the valid area, determining whether the pressure signal is a valid signal, and determining whether the capacitance signal is a valid signal; if both the pressure signal and the capacitance signal are valid signals, then responding to the first touch signal.

[0085] Optionally, after determining that the first signal is valid and the second signal is invalid, the chip, after a first preset time interval, again collects the pressure signal from the first pressure sensor and the capacitance signal from the first capacitance sensor in the valid area. If both the pressure signal and the capacitance signal meet the pressure threshold range, indicating a normal touch operation rather than a mis-touch, the chip sends a valid touch signal to the main control board. The first preset time interval can be, for example, 5ms.

[0086] In this embodiment, when the first signal is valid and the second signal is invalid, after an interval of a first preset time, it is determined whether the pressure signal and capacitance signal corresponding to the valid area are valid, so as to further determine whether the touch switch is accidentally touched. This de-shaking method can filter out interference caused by environmental factors such as car washing and rain.

[0087] In one embodiment, the touch method further includes: determining whether a first signal is a valid signal and whether a second touch signal is received within a second preset time period before determining whether a second signal is a valid signal; if not, then performing the steps of determining whether the first signal is a valid signal and determining whether the second signal is a valid signal.

[0088] For specific use cases of touch switches, such as car door locks, it is unlikely that there will be continuous door opening operations within 3 seconds. Therefore, after receiving the first touch signal, the chip does not immediately perform the steps of determining whether the first signal is a valid signal and whether the second signal is a valid signal. Instead, it first determines whether the second touch signal was received within 3 seconds before determining whether the first signal is a valid signal and whether the second signal is a valid signal. If so, there is no need to perform the steps of determining whether the first signal is a valid signal and whether the second signal is a valid signal. If not, then the steps of determining whether the first signal is a valid signal and whether the second signal is a valid signal are performed.

[0089] In this embodiment, the first touch signal is determined to be a continuously input signal by judging whether a second touch signal is received within a second preset time period. If so, no processing is performed, which further improves the anti-interference capability of the touch switch.

[0090] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0091] Based on the same inventive concept, this application also provides a touch switch for implementing the touch method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more touch switch embodiments provided below can be found in the limitations of the touch method described above, and will not be repeated here.

[0092] In one embodiment, this application also provides a touch switch, the touch switch comprising: a substrate; a first sensor module and a second sensor module respectively disposed on an effective area and an auxiliary area on the substrate; a chip, the chip being connected to the first sensor module and the second sensor module respectively, the chip being configured to receive a first signal sent by the first sensor module and a second signal sent by the second sensor module, determine whether the first signal is a valid signal, and determine whether the second signal is a valid signal; if the first signal is a valid signal and the second signal is an invalid signal, then responding to the first touch signal.

[0093] Optionally, the first sensor module includes a first pressure sensor and a first capacitance sensor; a chip is used to receive a first pressure signal sent by the first pressure sensor and a first capacitance signal sent by the first capacitance sensor, determine whether the first pressure signal is a valid signal, and determine whether the first capacitance signal is a valid signal. If both the first pressure signal and the first capacitance signal are valid signals, then the first signal is determined to be a valid signal.

[0094] The second sensor module includes a second pressure sensor and a second capacitance sensor; a chip is used to receive a second pressure signal sent by the second pressure sensor and a second capacitance signal sent by the second capacitance sensor, determine whether the second pressure signal is a valid signal, and determine whether the second capacitance signal is a valid signal; if both the second pressure signal and the second capacitance signal are valid signals, or if the second pressure signal is a valid signal and the second capacitance signal is an invalid signal, then the second signal is determined to be a valid signal.

[0095] In one embodiment, the touch switch further includes a first resistor and / or a second resistor; when the touch switch includes only the first resistor, the first resistor is disposed between the chip and the first sensor module; when the touch switch includes only the second resistor, the second resistor is disposed between the chip and the second sensor module; when the touch switch includes both the first resistor and the second resistor, the first resistor is disposed between the chip and the first sensor module, and the second resistor is disposed between the chip and the second sensor module.

[0096] Preferably, the touch switch includes a first resistor and a second resistor, the first resistor being disposed between the chip and the first sensor module, and the second resistor being disposed between the chip and the second sensor module.

[0097] A grounding layer with a mesh structure is provided between the substrate and the first sensor module, and a grounding layer with a mesh structure is provided between the substrate and the second sensor module; or, a grounding layer with a mesh structure is provided between the substrate and the first sensor module, but no grounding layer with a mesh structure is provided between the substrate and the second sensor module; or, no grounding layer with a mesh structure is provided between the substrate and the first sensor module, but a grounding layer with a mesh structure is provided between the substrate and the second sensor module.

[0098] Preferably, a grounding layer with a grid structure is provided between the substrate and the first sensor module, and a grounding layer with a grid structure is provided between the substrate and the second sensor module.

[0099] A grounding layer with a mesh structure is disposed around the outside of the first sensor module and around the outside of the second sensor module; or, a grounding layer with a mesh structure is disposed around the outside of the first sensor module but not around the outside of the second sensor module; or, a grounding layer with a mesh structure is not disposed around the outside of the first sensor module but is disposed around the outside of the second sensor module.

[0100] Preferably, the grounding layer with a mesh structure is disposed around the outside of the first sensor module, and the grounding layer with a mesh structure is disposed around the outside of the second sensor module.

[0101] Both the first and second resistors can be series resistors composed of multiple resistors connected in series. The substrate can be a PCB (Printed Circuit Board). The ground layer with a mesh structure refers to a mesh structure filled with traces, and the width of the traces can be set to approximately 8 mil.

[0102] Optional, such as Figure 5 The diagram illustrates a touch switch. Pin 1 of the chip is connected to a first capacitive sensor P via a series resistor R, with the series resistor R positioned close to pin 1 of the chip. The connection line between the chip and the first capacitive sensor P is shorter than a preset length.

[0103] The PCB board beneath the first capacitive sensor P has a grounding layer with a mesh structure, such as... Figure 5 The medium gray grid lines, while the solid ground plane is used away from the first capacitive sensor P and other circuit parts of the trace.

[0104] The first capacitive sensor P is surrounded by a grounding layer with a grid structure, such as Figure 5 The grid lines are relatively thick and black. The ground layer of the grid structure surrounding the first capacitive sensor P can be either closed or open. Figure 5 A closed-ended example.

[0105] In this embodiment, the above-mentioned touch switch has the following advantages:

[0106] 1) Reducing the length of the connection line between the chip and the first capacitive sensor can reduce noise interference and improve the signal-to-noise ratio.

[0107] 2) A series resistor is set between the chip and the first capacitive sensor to form a low-pass RC (Resistor-Capacitance) filter, thereby reducing the amplitude of radio frequency noise coupled to the chip; in addition, the series resistor is set close to the chip pins, which can filter out the radiated noise caused by the traces at the chip input.

[0108] 3) A ground plane with a mesh structure is set on the bottom layer of the PCB board below the first capacitive sensor, and a ground plane with a mesh structure is also set around the first capacitive sensor. At the same time, other circuit parts far away from the first capacitive sensor and traces use solid ground planes, which can reduce radio frequency radiation and interference, thereby reducing noise interference to the capacitive signal. In addition, setting the trace size to 8mil can further reduce noise interference to the capacitive signal.

[0109] In one embodiment, such as Figure 6 As shown, this application also provides a schematic diagram of a switch module, which includes a main control board, a linear motor, and a touch switch as described in any of the above-mentioned touch switch embodiments; the main control board is connected to the linear motor and the touch switch respectively; the touch switch sends a valid touch signal to the main control board in response to a first touch signal; the main control board controls the linear motor to vibrate based on the valid touch signal.

[0110] Optionally, the switch module may also include an LED module, a LIN (Local Interconnect Network) communication interface, and a linear interface.

[0111] Among them, the main control board is the data processing center; the linear motor provides vibration feedback; the LED module provides lighting feedback; the LIN communication interface is a software interface, which is the information exchange interface between the switch module and the vehicle host; and the linear interface is a hardware interface, which is the interface for the switch module to exchange switching signals with the vehicle host.

[0112] The working principle of this switch module is as follows:

[0113] 1) When a finger touches the touch switch, the main control board receives the valid touch signal sent by the touch switch, controls the linear motor to vibrate, controls the LED module to output the corresponding light indicator, and sends a LIN command to the vehicle host to notify the vehicle host that a button has been pressed.

[0114] 2) The vehicle host sends a sleep command through the LIN communication interface. After receiving the sleep command, the main control board turns off the LED module, disables the linear motor function and the touch switch function, and all pins of the main control board enter low power mode.

[0115] 3) The vehicle host sends a wake-up command through the LIN communication interface. After the main control board receives the wake-up command, the LED module lights up, enabling the linear motor function and the touch switch function. All pins of the main control board enter the working mode.

[0116] Based on the same inventive concept, this application also provides a touch device for implementing the touch method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more touch device embodiments provided below can be found in the limitations of the touch method described above, and will not be repeated here.

[0117] In one embodiment, such as Figure 7 As shown, a touch device 700 is provided, comprising: a receiving module 701, a judging module 702, and a response module 703, wherein:

[0118] The receiving module 701 is used to receive a first touch signal, which includes a first signal corresponding to the effective area of ​​the touch button and a second signal corresponding to the auxiliary area of ​​the touch button.

[0119] The judgment module 702 is used to determine whether the first signal is a valid signal and whether the second signal is a valid signal.

[0120] The response module 703 is used to respond to the first touch signal if the first signal is a valid signal and the second signal is an invalid signal.

[0121] In one embodiment, the first signal includes a first pressure signal and a first capacitance signal. The determination module 702 is specifically used to determine whether the first pressure signal is a valid signal and whether the first capacitance signal is a valid signal. If both the first pressure signal and the first capacitance signal are valid signals, then the first signal is determined to be a valid signal.

[0122] In one embodiment, the second signal includes a second pressure signal and a second capacitance signal. The determination module 702 is specifically used to determine whether the second pressure signal is a valid signal and whether the second capacitance signal is a valid signal. If both the second pressure signal and the second capacitance signal are valid signals, or if the second pressure signal is a valid signal and the second capacitance signal is an invalid signal, then the second signal is determined to be a valid signal.

[0123] In one embodiment, the response module 703 is specifically configured to, if the first signal is a valid signal and the second signal is an invalid signal, receive the pressure signal and capacitance signal corresponding to the valid area at intervals of a first preset time, determine whether the pressure signal is a valid signal, and determine whether the capacitance signal is a valid signal; if both the pressure signal and the capacitance signal are valid signals, then respond to the first touch signal.

[0124] In one embodiment, the determination module 702 is further configured to determine whether the first signal is a valid signal and whether the second touch signal is received within a second preset time period before determining whether the second signal is a valid signal; if not, the steps of determining whether the first signal is a valid signal and determining whether the second signal is a valid signal are executed.

[0125] The modules in the aforementioned touch device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0126] In one embodiment, a chip is provided. Figure 8 This is a schematic structural diagram of the chip according to an embodiment of this application. Figure 8 The chip 800 shown includes a processor 801, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0127] Optionally, such as Figure 8 As shown, chip 800 may further include memory 802. Processor 801 can call and run computer programs from memory 802 to implement the methods in the embodiments of this application. Memory 802 may be a separate device independent of processor 801, or it may be integrated into processor 801.

[0128] Optionally, the chip 800 may further include an input interface 803. The processor 801 can control the input interface 803 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips. Optionally, the chip 800 may further include an output interface 804. The processor 801 can control the output interface 804 to communicate with other devices or chips; specifically, it can output information or data to other devices or chips.

[0129] Optionally, the chip 800 can be applied to the communication device in the embodiments of this application, and the chip 800 can implement the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0130] It should be understood that the chip 800 mentioned in the embodiments of this application can also be called a system-on-a-chip, system-on-a-chip, chip system, or system-on-a-chip, etc. It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiments can be completed by the integrated logic circuit in the processor's hardware or by instructions in software form. The processor mentioned above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.

[0131] In one exemplary embodiment, a computer device is provided, which may be a touch switch, and its internal structure diagram may be as follows. Figure 9 As shown, the computer device includes a processor, memory, input / output interfaces, a communication interface, and input devices. The processor, memory, and input / output interfaces are connected via a system bus, and the communication interface, display unit, and input devices are also connected to the system bus via the input / output interfaces. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interfaces are used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a touch control method.

[0132] Those skilled in the art will understand that Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0133] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps described in any of the above-described touch method embodiments.

[0134] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps described in any of the above-described touch method embodiments.

[0135] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps described in any of the above-described touch method embodiments.

[0136] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0137] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0138] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A touch control method, characterized in that, A touch switch applied to a vehicle door lock, wherein the touch method includes: Receive a first touch signal, the first touch signal including a first signal corresponding to the effective area of ​​the touch button and a second signal corresponding to the auxiliary area of ​​the touch button; Determine whether the first signal is a valid signal, and determine whether the second signal is a valid signal; If the first signal is a valid signal and the second signal is an invalid signal, then the first touch signal will be responded to. The first signal includes a first pressure signal and a first capacitance signal. Determining whether the first signal is a valid signal includes: determining whether the first pressure signal is a valid signal and determining whether the first capacitance signal is a valid signal; if both the first pressure signal and the first capacitance signal are valid signals, then the first signal is determined to be a valid signal. The second signal includes a second pressure signal and a second capacitance signal. Determining whether the second signal is a valid signal includes: determining whether the second pressure signal is a valid signal and determining whether the second capacitance signal is a valid signal; if both the second pressure signal and the second capacitance signal are valid signals, or if the second pressure signal is a valid signal and the second capacitance signal is an invalid signal, then the second signal is determined to be a valid signal. The method further includes: determining whether the first signal is a valid signal and whether a second touch signal is received within a second preset time period before determining whether the second signal is a valid signal; if not, then performing the steps of determining whether the first signal is a valid signal and determining whether the second signal is a valid signal.

2. The method according to claim 1, characterized in that, If the first signal is a valid signal and the second signal is an invalid signal, then responding to the first touch signal includes: If the first signal is a valid signal and the second signal is an invalid signal, then after a first preset time interval, the pressure signal and capacitance signal corresponding to the valid area are received to determine whether the pressure signal is a valid signal and whether the capacitance signal is a valid signal. If both the pressure signal and the capacitance signal are valid signals, then the first touch signal is responded to.

3. A touch switch, characterized in that, The touch switch is used on vehicle door locks and includes: substrate; A first sensor module and a second sensor module are respectively disposed in the effective area and the auxiliary area on the substrate; The chip is connected to the first sensor module and the second sensor module respectively. The chip is used to receive a first touch signal, which includes a first signal sent by the first sensor module and a second signal sent by the second sensor module; determine whether the first signal is a valid signal and determine whether the second signal is a valid signal; if the first signal is a valid signal and the second signal is an invalid signal, then respond to the first touch signal. The first sensor module includes a first pressure sensor and a first capacitance sensor; The chip is configured to receive a first pressure signal sent by the first pressure sensor and a first capacitance signal sent by the first capacitance sensor, determine whether the first pressure signal is a valid signal, and determine whether the first capacitance signal is a valid signal. If both the first pressure signal and the first capacitance signal are valid signals, then the first signal is determined to be a valid signal. The second sensor module includes a second pressure sensor and a second capacitance sensor; The chip is configured to receive a second pressure signal sent by the second pressure sensor and a second capacitance signal sent by the second capacitance sensor, determine whether the second pressure signal is a valid signal, and determine whether the second capacitance signal is a valid signal; if both the second pressure signal and the second capacitance signal are valid signals, or if the second pressure signal is a valid signal and the second capacitance signal is an invalid signal, then the second signal is determined to be a valid signal; The chip is further configured to determine whether the first signal is a valid signal and whether a second touch signal is received within a second preset time period before determining whether the second signal is a valid signal; if not, the steps of determining whether the first signal is a valid signal and determining whether the second signal is a valid signal are executed.

4. The touch switch according to claim 3, characterized in that, The touch switch further includes a first resistor and / or a second resistor; When the touch switch includes only the first resistor, the first resistor is disposed between the chip and the first sensor module; When the touch switch includes only the second resistor, the second resistor is disposed between the chip and the second sensor module; When the touch switch includes the first resistor and the second resistor, the first resistor is disposed between the chip and the first sensor module, and the second resistor is disposed between the chip and the second sensor module.

5. The touch switch according to claim 3, characterized in that, A grounding layer with a mesh structure is provided between the substrate and the first sensor module, and / or, a grounding layer with a mesh structure is provided between the substrate and the second sensor module.

6. The touch switch according to claim 3, characterized in that, A grounding layer with a mesh structure is disposed around the outside of the first sensor module, and / or, a grounding layer with a mesh structure is disposed around the outside of the second sensor module.

7. A switch module, characterized in that, The switch module includes a main control board, a linear motor, and a touch switch as described in any one of claims 3 to 6; the main control board is connected to the linear motor and the touch switch respectively; The touch switch sends a valid touch signal to the main control board in response to the first touch signal; The main control board controls the vibration of the linear motor based on the effective touch signal.

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