Circuit for monitoring touch mode

Abstract

The utility model provides a circuit for monitoring a touch control mode. The circuit comprises a touch screen induction capacitance module, an induction processing module and a control module, the touch screen induction capacitance module is connected with the touch screen and is arranged below the touch screen; the capacitance sensor is used for generating capacitance signals according to touch actions of the touch screen; the induction processing module is electrically connected with the touch screen induction capacitance module; the pre-processing module is used for receiving and pre-processing the capacitance signal of the touch screen induction capacitance module and transmitting the pre-processed capacitance signal to the control module; the control module receives and judges whether the preprocessed capacitance signal meets a first threshold value or not; if yes, the working mode of the touch screen is switched into the first capacitance mode. The intelligent glove can monitor the touch action of a user in real time and automatically adjust the working mode of the intelligent glove according to the change of a touch signal, so that the intelligent glove can flexibly adapt to different environments and user requirements.

Description

Technical Field

[0001] This utility model relates to the technical field of touch circuits, and more specifically, to a circuit for monitoring touch methods. Background Technology

[0002] Most existing smart glove technologies only have fixed modes, such as fully covering the fingers for protection or warmth, or fully exposing the fingers for enhanced operational flexibility. This design cannot flexibly switch according to actual needs and environmental conditions, limiting its application in variable environments. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a circuit for monitoring touch control, which addresses the problem that existing technologies cannot flexibly switch working modes according to actual needs.

[0004] The technical solution adopted by this utility model to solve its technical problem is: providing a circuit for monitoring touch control mode; applied to a touch screen, including a touch screen sensing capacitor module, a sensing processing module and a control module;

[0005] The touchscreen sensing capacitor module is connected to the touchscreen and is located below the touchscreen; it is used to generate a capacitance signal based on the touch action of the touchscreen.

[0006] The sensing processing module is electrically connected to the touch screen sensing capacitor module; it is used to receive and preprocess the capacitor signal of the touch screen sensing capacitor module, and transmit the preprocessed capacitor signal to the control module.

[0007] The control module receives and determines whether the preprocessed capacitance signal meets the first threshold.

[0008] If the conditions are met, the operating mode of the touchscreen will be switched to the first capacitive mode.

[0009] In one embodiment, the control module further determines whether the preprocessed capacitance signal meets a second threshold.

[0010] If the conditions are met, the operating mode of the touchscreen will be switched to the second capacitive mode.

[0011] In one embodiment, the touchscreen sensing capacitive module includes a sensing submodule and a filtering submodule;

[0012] One end of the sensing submodule is connected to one end of the filtering submodule, the other end of the sensing submodule is mechanically connected to the touch screen, and the other end of the filtering submodule is connected to the sensing processing module.

[0013] In one embodiment, the sensing submodule includes a spring contact, and the filtering submodule includes a first inductor, a first resistor, and a first bidirectional Zener diode;

[0014] One end of the spring is mechanically connected to the touch screen; the other end of the spring is connected to one end of the first inductor; the other end of the first inductor is connected to the sensing processing module through the first resistor; the other end of the first inductor is also grounded through the first bidirectional Zener diode.

[0015] In one embodiment, the circuit further includes a first filter backup module and a second filter backup module; the first filter backup module and the second filter backup module are used to provide backup for the filter submodule;

[0016] The first backup filter module and the second backup filter module are respectively connected to the sensing processing module.

[0017] In one embodiment, the first filter backup module includes a first capacitor, a second inductor, a second resistor, and a second bidirectional Zener diode;

[0018] One end of the first capacitor is grounded, and the other end is connected to one end of the second inductor; the other end of the second inductor is connected to the sensing processing module through the second resistor; the other end of the second inductor is also grounded through the second bidirectional Zener diode.

[0019] In one embodiment, the second filter backup module includes a second capacitor, a third inductor, a third resistor, and a third bidirectional Zener diode;

[0020] One end of the second capacitor is grounded, and the other end is connected to one end of the third inductor; the other end of the third inductor is connected to the sensing processing module through the third resistor; the other end of the third inductor is also grounded through the third bidirectional Zener diode.

[0021] In one embodiment, the circuit includes a power supply module;

[0022] The sensing processing module is connected to the power supply module.

[0023] In one embodiment, the power module includes a third capacitor and a fourth capacitor;

[0024] The control module is grounded sequentially through the third capacitor and the fourth capacitor, and is connected to an external power supply device.

[0025] In one embodiment, the sensing processing module includes an AW96103 chip; the control module includes a CPU and a fourth resistor;

[0026] The AW96103 chip is connected to the CPU via the fourth resistor.

[0027] The circuit implementing the touch monitoring method of this utility model has the following beneficial effects: it includes a touch screen sensing capacitor module, a sensing processing module, and a control module; the touch screen sensing capacitor module is connected to the touch screen and is disposed below the touch screen; it is used to generate a capacitance signal according to the touch action of the touch screen; the sensing processing module is electrically connected to the touch screen sensing capacitor module; it is used to receive and preprocess the capacitance signal of the touch screen sensing capacitor module, and transmit the preprocessed capacitance signal to the control module; the control module receives and determines whether the preprocessed capacitance signal meets a first threshold; if it does, it switches the working mode of the touch screen to a first capacitance mode. This utility model can monitor the user's touch action in real time and automatically adjust the working mode of the smart glove according to the change of the touch signal, thereby achieving flexible adaptation to different environments and user needs. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0029] Figure 1 This is a schematic block diagram of an embodiment of the monitoring touch control method provided by this utility model;

[0030] Figure 2 This is a schematic block diagram of another embodiment of the monitoring touch control method circuit provided by this utility model;

[0031] Figure 3 This is a circuit diagram of the monitoring touch control method provided by this utility model.

[0032] The labels are as follows:

[0033] Touchscreen sensing capacitive module 10; sensing submodule 11; filtering submodule 12; sensing processing module 20; control module 30; first filter backup module 40; second filter backup module 50; power supply module 60. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] like Figure 1 As shown, Figure 1 This invention provides a circuit block diagram of a touch monitoring method. The circuit for this touch monitoring method can be applied to a touchscreen.

[0036] Specifically, such as Figure 1 As shown, the circuit for this touch monitoring method includes: a touch screen sensing capacitor module 10, a sensing processing module 20, and a control module 30;

[0037] The touchscreen sensing capacitive module 10 is connected to the touchscreen and is located below the touchscreen; it is used to generate capacitive signals based on the touchscreen's touch actions.

[0038] The sensing processing module 20 is electrically connected to the touch screen sensing capacitive module 10; it is used to receive and preprocess the capacitive signal of the touch screen sensing capacitive module 10, and transmit the preprocessed capacitive signal to the control module 30.

[0039] The control module 30 receives and determines whether the preprocessed capacitance signal meets the first threshold.

[0040] If the conditions are met, the touchscreen's operating mode will be switched to the first capacitive mode.

[0041] Specifically, the touchscreen sensing capacitive module 10 is used to sense touch actions and generate capacitive signals; the sensing processing module 20 is used to receive and process these capacitive signals to make them clearer and easier to understand; and the control module 30 is used to determine the user's intention based on the processed signals and control the switching of the touchscreen's working mode.

[0042] In one embodiment, the circuit comprises a touchscreen capacitive sensing module 10, a sensing processing module 20, and a control module 30. The touchscreen capacitive sensing module 10 is tightly fitted beneath the touchscreen, accurately sensing user touch actions and generating corresponding capacitance signals. The sensing processing module 20 receives these raw signals, preprocesses them, and then transmits them to the control module 30. The control module 30 determines whether the received preprocessed signal meets a preset first threshold. If the condition is met, the touchscreen's operating mode is automatically switched to the first capacitance mode. For example, when the first threshold is set to represent a range of low capacitance values ​​(e.g., between 30pF and 50pF), the first capacitance mode is set to a glove-specific capacitance parameter mode. In this mode, this setting typically means the touchscreen adopts a more sensitive touch response strategy, allowing users to easily perform precise touch operations, such as swiping the screen and clicking icons, even when covered by gloves, while maintaining operational efficiency and comfort.

[0043] Furthermore, the control module 30 also determines whether the preprocessed capacitance signal meets the second threshold.

[0044] If the conditions are met, the touchscreen's operating mode will be switched to the second capacitive mode.

[0045] In one embodiment, a second threshold is set to represent a range of high capacitance values ​​if the detected capacitance signal meets this high threshold condition. For example, if the second threshold is greater than or equal to 50pF, the first capacitance mode is dynamically adjusted to a capacitance parameter mode specific to the finger. In this mode, the high sensitivity of the screen when the finger directly contacts it is fully utilized. Users can enjoy a more direct, smooth, and precise touch experience.

[0046] like Figure 2 As shown, the touch screen sensing capacitive module 10 further includes a sensing submodule 11 and a filtering submodule;

[0047] One end of the sensing submodule 11 is connected to one end of the filtering submodule, and the other end of the sensing submodule 11 is mechanically connected to the touch screen. The other end of the filtering submodule 12 is connected to the sensing processing module 20.

[0048] In one embodiment, the sensing submodule 11 is used to detect the capacitance signal generated on the touchscreen due to the proximity of a finger or other conductor. The filtering submodule 12 is used to filter the raw capacitance signal detected by the sensing submodule 11. Since the raw signal may contain noise and interference, the filtering submodule can extract clearer and more accurate capacitance change information by removing these unnecessary components. The processed signal is then transmitted to the sensing processing module 20.

[0049] like Figure 3 As shown, the sensing submodule 11 further includes spring contacts SP6409 and SP6411, and the filtering submodule 12 includes a first inductor L6404, a first resistor R6413 and a first bidirectional Zener diode TVS6418.

[0050] One end of the spring is mechanically connected to the touch screen; the other end of the spring is connected to one end of the first inductor L6404; the other end of the first inductor L6404 is connected to the sensing processing module 20 through the first resistor R6413; the other end of the first inductor L6404 is also grounded through the first bidirectional Zener diode TVS6418.

[0051] It should be noted that one end of the contact springs SP6409 and SP6411 is mechanically connected to the touchscreen, directly sensing touch actions and generating corresponding capacitance signals. The other end of the contact springs is connected to one end of the first inductor L6404, transmitting the generated capacitance signal to the filtering submodule 12 for further processing. The first inductor L6404, acting as a filter element, removes high-frequency noise from the signal, improving signal purity. Its other end is connected to the sensing processing module 20 via the first resistor R6413, transmitting the filtered signal to the sensing processing module for further analysis and processing. Simultaneously, to protect the circuit from instantaneous high voltage surges, the other end of the first inductor L6404 is grounded via the first bidirectional Zener diode TVS6418. When an instantaneous high voltage occurs in the circuit, TVS6418 quickly conducts and limits the voltage within a safe range, thus protecting the circuit from damage.

[0052] In one embodiment, when a finger or other conductor approaches the touchscreen and generates a capacitive signal, the contact springs SP6409 and SP6411 sense this signal and transmit it to the first inductor L6404. After processing by the filtering submodule 12, the signal is transmitted to the sensing processing module 20 for further analysis and judgment.

[0053] Furthermore, the circuit also includes a first filter backup module 40 and a second filter backup module 50; the first filter backup module 40 and the second filter backup module 50 are used to provide backup for the filter submodule 12;

[0054] The first backup filter module 40 and the second backup filter module 50 are respectively connected to the sensing processing module 20.

[0055] It should be noted that under normal operating conditions, the filter submodule 12 is responsible for processing the capacitance signal transmitted from the sensing submodule 11 and passing it to the sensing processing module 20. However, in certain special circumstances, such as when the filter submodule 12 malfunctions or its performance degrades, the first backup filter module 40 and the second backup filter module 50 can promptly take over the filtering task, ensuring the continuity and accuracy of the signal. The first backup filter module 40 and the second backup filter module 50 are respectively connected to the sensing processing module 20, meaning they can be ready to replace the filter submodule 12 at any time. This design not only improves the fault tolerance of the circuit but also makes the entire system more robust in the face of unexpected situations.

[0056] like Figure 3 As shown, the first filter backup module 40 further includes a first capacitor C6411, a second inductor L6403, a second resistor R6412, and a second bidirectional Zener diode TVS6417.

[0057] One end of the first capacitor C6411 is grounded, and the other end is connected to one end of the second inductor L6403; the other end of the second inductor L6403 is connected to the sensing processing module 20 through the second resistor R6412; the other end of the second inductor L6403 is also grounded through the second bidirectional Zener diode TVS6417.

[0058] It should be noted that the first backup filter module 40 does not participate in signal filtering under normal operating conditions, but remains in standby mode. The system will automatically switch to the first backup filter module 40 only when the main filter submodule 12 malfunctions or its performance degrades. This design not only improves the reliability and stability of the circuit but also allows the entire system to respond more flexibly to unexpected situations.

[0059] like Figure 3 As shown, the second filter backup module 50 further includes a second capacitor C6436, a third inductor L6405, a third resistor R6414, and a third bidirectional Zener diode TVS6419.

[0060] One end of the second capacitor C6436 is grounded, and the other end is connected to one end of the third inductor L6405; the other end of the third inductor L6405 is connected to the sensing processing module 20 through the third resistor R6414; the other end of the third inductor L6405 is also grounded through the third bidirectional Zener diode TVS6419.

[0061] It should be noted that the second filter backup module 50 is also in standby mode under normal operating conditions and does not participate in signal filtering. Only when the main filter submodule 12 or the first filter backup module 40 fails will the system switch to the second filter backup module 50 for operation according to the preset switching logic.

[0062] Furthermore, the circuit includes a power supply module 60;

[0063] The sensing processing module 20 is connected to the power supply module 60.

[0064] Furthermore, the power module 60 includes a third capacitor C6432 and a fourth capacitor C6433;

[0065] The control module 30 is grounded through the third capacitor C6432 and the fourth capacitor C6433 in sequence, and is connected to an external power supply device.

[0066] Furthermore, the sensing processing module 20 includes an AW96103 chip; the control module 30 includes a CPU and a fourth resistor R6415;

[0067] The AW96103 chip is connected to the CPU via the fourth resistor R6415.

[0068] It should be noted that the circuit includes a power supply module 60, which stably supplies power to the entire system, ensuring that all components can operate continuously and stably. The power supply module 60 uses third capacitor C6432 and fourth capacitor C6433 for filtering and voltage regulation, reducing the impact of power fluctuations. The core of the sensing processing module 20 is the high-performance capacitive touch sensing chip AW96103, which can identify and process signals from the sensing submodule 11 and its backup modules. The control module 30 includes components such as a CPU, and communicates with the AW96103 chip through the fourth resistor R6415, receiving signals and responding according to preset logic, forming a complete and efficient circuit system.

[0069] This invention provides a circuit for monitoring touch control methods, specifically designed for the use of industrial equipment such as PDAs and POS systems in cold weather. The circuit integrates a touchscreen capacitive sensing module, a sensing processing module, and a control module, aiming to achieve seamless automatic switching of screen touch control methods, ensuring optimal working conditions and comfort for users whether they are directly touching the screen with their fingers or wearing gloves. Specifically, the touchscreen capacitive sensing module is located below the touchscreen, sensitively capturing touch actions and generating corresponding capacitance signals. These signals are then transmitted to the sensing processing module, which preprocesses them to ensure accuracy and stability. The preprocessed capacitance signals are further transmitted to the control module. The control module incorporates an intelligent judgment mechanism that quickly determines whether the received signal meets a preset first threshold. This threshold is set based on the capacitance change characteristics when a user touches the screen, distinguishing between finger touch and glove touch.

[0070] Once a glove touch is detected (i.e., the signal meets the first threshold), the control module immediately activates the automatic switching mechanism, switching the touchscreen's operating mode from the regular finger touch mode to a first capacitive mode suitable for glove touch. This switching process is completely seamless, requiring no manual operation from the user, thus greatly improving work efficiency and user experience.

[0071] The circuit for monitoring touch control provided by this utility model has high flexibility and security, and is widely used in outdoor sports, industry, medical and other fields. It enables industrial equipment such as PDAs (Personal Digital Assistants) and POS (Point of Sale) devices to automatically adapt to the touch control needs of different users in cold weather, ensuring continuous and efficient operation of the equipment and a comfortable user experience.

[0072] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They do not limit the scope of protection of this utility model. All equivalent changes and modifications made within the scope of the claims of this utility model should fall within the scope of the claims of this utility model.

Claims

1. A circuit for monitoring touch mode, applied to a touchscreen, characterized in that, It includes a touchscreen capacitive sensing module, a sensing processing module, and a control module; The touchscreen sensing capacitor module is connected to the touchscreen and is located below the touchscreen; it is used to generate a capacitance signal based on the touch action of the touchscreen. The sensing processing module is electrically connected to the touch screen sensing capacitor module. Used to receive and preprocess the capacitance signal of the touch screen sensing capacitance module, and transmit the preprocessed capacitance signal to the control module; The control module receives and determines whether the preprocessed capacitance signal meets the first threshold. If the conditions are met, the operating mode of the touchscreen will be switched to the first capacitive mode.

2. The circuit for monitoring touch control according to claim 1, characterized in that, The control module also determines whether the preprocessed capacitor signal meets the second threshold. If the conditions are met, the operating mode of the touchscreen will be switched to the second capacitive mode.

3. The circuit for monitoring touch control according to claim 1, characterized in that, The touchscreen sensing capacitive module includes a sensing submodule and a filtering submodule; One end of the sensing submodule is connected to one end of the filtering submodule, the other end of the sensing submodule is mechanically connected to the touch screen, and the other end of the filtering submodule is connected to the sensing processing module.

4. The circuit for monitoring touch control according to claim 3, characterized in that, The sensing submodule includes a spring contact, and the filtering submodule includes a first inductor, a first resistor, and a first bidirectional Zener diode; One end of the spring is mechanically connected to the touch screen; the other end of the spring is connected to one end of the first inductor; the other end of the first inductor is connected to the sensing processing module through the first resistor; the other end of the first inductor is also grounded through the first bidirectional Zener diode.

5. The circuit for monitoring touch control according to claim 3, characterized in that, The circuit further includes a first filter backup module and a second filter backup module; the first filter backup module and the second filter backup module are used to provide backup for the filter submodule; The first backup filter module and the second backup filter module are respectively connected to the sensing processing module.

6. The circuit for monitoring touch control according to claim 5, characterized in that, The first filter backup module includes a first capacitor, a second inductor, a second resistor, and a second bidirectional Zener diode; One end of the first capacitor is grounded, and the other end is connected to one end of the second inductor; the other end of the second inductor is connected to the sensing processing module through the second resistor; the other end of the second inductor is also grounded through the second bidirectional Zener diode.

7. The circuit for monitoring touch control according to claim 5, characterized in that, The second filter backup module includes a second capacitor, a third inductor, a third resistor, and a third bidirectional Zener diode; One end of the second capacitor is grounded, and the other end is connected to one end of the third inductor; the other end of the third inductor is connected to the sensing processing module through the third resistor; the other end of the third inductor is also grounded through the third bidirectional Zener diode.

8. The circuit for monitoring touch control according to claim 1, characterized in that, The circuit includes a power module; The sensing processing module is connected to the power supply module.

9. The circuit for monitoring touch control according to claim 8, characterized in that, The power module includes a third capacitor and a fourth capacitor; The control module is grounded sequentially through the third capacitor and the fourth capacitor, and is connected to an external power supply device.

10. The circuit for monitoring touch control according to claim 1, characterized in that, The sensing processing module includes an AW96103 chip; the control module includes a CPU and a fourth resistor. The AW96103 chip is connected to the CPU via the fourth resistor.

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