Human-machine interaction device

Abstract

The application discloses a human-computer interaction device, comprising: an input module; a control module, provided with a first detection port and a second detection port, the first detection port and the second detection port are electrically connected with the input module respectively; a first voltage stabilizing module, comprising a first TVS tube, a second TVS tube and a detection resistor, one end of the detection resistor is electrically connected with the first detection port, the other end of the detection resistor is electrically connected with the input module, the first TVS tube is connected with the second TVS tube in parallel, the other end of the detection resistor is grounded through the first TVS tube; a second voltage stabilizing module, comprising a third TVS tube and a fourth TVS tube, the first detection port is grounded through the third TVS tube, the second detection port is grounded through the fourth TVS tube; a display module, the display module is electrically connected with the control module, wherein the control module is used for collecting the voltage signal on the first detection port to control the display module to issue a warning. According to the embodiment provided by the application, the reliability of the human-computer interaction device can be improved.

Description

Technical Field

[0001] This application relates to the field of electronic information technology, and in particular to a human-computer interaction device. Background Technology

[0002] Currently, circuits used to realize human-computer interaction usually involve input devices such as touch screens, mice and keyboards. However, static electricity accumulation and discharge are relatively frequent in these circuits, which can easily affect the normal operation of the circuit and even cause permanent damage to the circuit, leading to a decrease in the reliability of human-computer interaction devices. Utility Model Content

[0003] The following is an overview of the subject matter described in detail herein, and this overview is not intended to limit the scope of the claims.

[0004] This application proposes a human-computer interaction device that can improve the reliability of the human-computer interaction device.

[0005] This application provides a human-computer interaction device, comprising: an input module; a control module having a first detection port and a second detection port, the first detection port and the second detection port being electrically connected to the input module respectively; a first voltage regulator module including a first TVS diode, a second TVS diode, and a detection resistor, one end of the detection resistor being electrically connected to the first detection port, the other end of the detection resistor being electrically connected to the input module, the first TVS diode and the second TVS diode being connected in parallel, and the other end of the detection resistor being grounded through the first TVS diode; a second voltage regulator module including a third TVS diode and a fourth TVS diode, the first detection port being grounded through the third TVS diode, and the second detection port being grounded through the fourth TVS diode; and a display module electrically connected to the control module, wherein the control module is used to collect the voltage signal on the first detection port to control the display module to issue an early warning.

[0006] In some embodiments, the number of the second detection ports is multiple, and the number of the fourth TVS tubes is the same as the number of the second detection ports.

[0007] In some embodiments, a filtering module is further included, the filtering module including a first filtering capacitor and a second filtering capacitor, the first filtering capacitor and the second filtering capacitor being connected in parallel, and the other end of the detection resistor being grounded through the first filtering capacitor.

[0008] In some embodiments, a voltage source is further included, which is electrically connected to one end of a filter inductor, and the other end of the filter inductor is grounded through the first TVS diode.

[0009] In some embodiments, a power management module is further included, the power management module including a first voltage conversion unit and a second voltage conversion unit, the voltage source being electrically connected to the second voltage conversion unit through the first voltage conversion unit, and the second voltage conversion unit being electrically connected to the control module.

[0010] In some embodiments, a resistor array is further included, wherein the first detection port and the second detection port are electrically connected to the input module via the resistor array.

[0011] In some embodiments, a serial communication module is further included, which is electrically connected to the control module.

[0012] In some embodiments, a wireless communication module is further included, which is electrically connected to the control module.

[0013] In some embodiments, the system further includes a first storage module, which is electrically connected to the control module.

[0014] In some embodiments, a backlight interface circuit is also included, through which the display module is electrically connected to the control module.

[0015] The embodiments of this application include at least the following beneficial effects: The control module is provided with a first detection port and a second detection port, which are electrically connected to the input module respectively. The first voltage regulator module includes a first TVS diode, a second TVS diode, and a detection resistor. One end of the detection resistor is electrically connected to the first detection port, and the other end of the detection resistor is electrically connected to the input module. The first TVS diode and the second TVS diode are connected in parallel, and the other end of the detection resistor is grounded through the first TVS diode. The second voltage regulator module includes a third TVS diode and a fourth TVS diode. The first detection port is grounded through the third TVS diode, and the second detection port is grounded through the fourth TVS diode. The accumulated static electricity is conducted to the ground terminal through the first TVS diode, the second TVS diode, the third TVS diode, and the fourth TVS diode, thereby preventing the accumulated static electricity from damaging the circuit and improving the stability of the human-machine interaction device. In addition, the display module is electrically connected to the control module. The control module can collect the voltage signal on the first detection port to control the display module to issue a warning, thereby timely reminding the user of the risks existing in the circuit and improving the maintenance efficiency of the circuit.

[0016] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0017] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0018] Figure 1 A system block diagram of the human-computer interaction device provided in the embodiments of this application;

[0019] Figure 2 The circuit schematic diagram of the electrostatic protection circuit provided in the embodiments of this application;

[0020] Figure 3 The circuit schematic diagram of the control module provided in the embodiments of this application;

[0021] Figure 4 The circuit schematic diagram of the display module provided in the embodiments of this application;

[0022] Figure 5 A circuit schematic diagram of the backlight interface circuit provided in the embodiments of this application;

[0023] Figure 6 The circuit schematic diagram of the serial communication module provided in the embodiments of this application;

[0024] Figure 7 The circuit schematic diagram of the wireless communication module provided in the embodiments of this application;

[0025] Figure 8 The circuit schematic of the power management module provided in the embodiments of this application;

[0026] Figure 9 The circuit schematic diagram of the storage module provided in the embodiment of this application. Detailed Implementation

[0027] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0028] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0031] Currently, circuits used to realize human-computer interaction usually involve input devices such as touch screens, mice and keyboards. However, static electricity accumulation and discharge are relatively frequent in these circuits, which can easily affect the normal operation of the circuit and even cause permanent damage to the circuit, leading to a decrease in the reliability of human-computer interaction devices.

[0032] To address the issue of decreased reliability, this application provides a human-computer interaction device, comprising: an input module; a control module having a first detection port and a second detection port, both electrically connected to the input module; a first voltage regulator module including a first TVS diode, a second TVS diode, and a detection resistor, one end of the detection resistor being electrically connected to the first detection port and the other end being electrically connected to the input module, the first and second TVS diodes being connected in parallel, and the other end of the detection resistor being grounded through the first TVS diode; a second voltage regulator module including a third and a fourth TVS diode, the first detection port being grounded through the third TVS diode and the second detection port being grounded through the fourth TVS diode; and a display module electrically connected to the control module, wherein the control module is used to collect the voltage signal on the first detection port to control the display module to issue a warning. According to the solution provided in the embodiments of this application, the control module is provided with a first detection port and a second detection port, which are electrically connected to the input module. The first voltage regulator module includes a first TVS diode, a second TVS diode, and a detection resistor. One end of the detection resistor is electrically connected to the first detection port, and the other end of the detection resistor is electrically connected to the input module. The first TVS diode and the second TVS diode are connected in parallel, and the other end of the detection resistor is grounded through the first TVS diode. The second voltage regulator module includes a third TVS diode and a fourth TVS diode. The first detection port is grounded through the third TVS diode, and the second detection port is grounded through the fourth TVS diode. The accumulated static electricity is conducted to the ground terminal through the first TVS diode, the second TVS diode, the third TVS diode, and the fourth TVS diode, thereby preventing the accumulated static electricity from damaging the circuit and improving the stability of the human-machine interaction device. In addition, the display module is electrically connected to the control module. The control module can collect the voltage signal on the first detection port to control the display module to issue a warning, thereby timely reminding the user of the risks existing in the circuit and improving the maintenance efficiency of the circuit.

[0033] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0034] Reference Figures 1 to 4 , Figure 1 This is a system block diagram of the human-computer interaction device provided in the embodiments of this application. Figure 2 This is a circuit diagram of the electrostatic protection circuit provided in the embodiments of this application. Figure 3 The circuit schematic diagram of the control module provided in the embodiments of this application is as follows. Figure 4 This application provides a circuit schematic diagram of a display module according to an embodiment of the present application. The present application also provides a human-computer interaction device, including:

[0035] Input module 100;

[0036] The control module 200 is provided with a first detection port 210 and a second detection port 220, which are electrically connected to the input module 100 respectively.

[0037] The first voltage regulator module 300 includes a first TVS diode 310, a second TVS diode 320, and a detection resistor 330. One end of the detection resistor 330 is electrically connected to the first detection port 210, and the other end of the detection resistor 330 is electrically connected to the input module 100. The first TVS diode 310 and the second TVS diode 320 are connected in parallel, and the other end of the detection resistor 330 is grounded through the first TVS diode 310.

[0038] The second voltage regulator module 400 includes a third TVS diode 410 and a fourth TVS diode 420. The first detection port 210 is grounded through the third TVS diode 410, and the second detection port 220 is grounded through the fourth TVS diode 420.

[0039] The display module 500 is electrically connected to the control module 200. The control module 200 is used to collect the voltage signal on the first detection port 210 to control the display module 500 to issue an early warning.

[0040] Among them, the transient voltage suppressor (TVS) is an overvoltage protection device with bidirectional voltage regulation and bidirectional negative resistance characteristics.

[0041] Understandably, when static electricity accumulates to the limit of a TVS diode, the TVS diode will clamp the voltage at a certain position. Therefore, the TVS diode can reduce the impact of static electricity on the voltage. When the accumulation of static electricity exceeds the limit of the TVS diode, the TVS diode's properties will change from high impedance to low impedance, allowing the large current generated by the accumulation of static electricity to be conducted to the ground terminal, thereby completing the release of static electricity and improving the stability of the circuit in two ways.

[0042] The input module 100 can be a capacitive touch screen, or an input device such as a mouse or keyboard; the embodiments disclosed herein are not limited thereto.

[0043] The control module 200 can be a T5L chip.

[0044] The input module 100 is also grounded to the grounding terminal.

[0045] Based on this, the control module 200 is provided with a first detection port 210 and a second detection port 220, which are electrically connected to the input module 100 respectively. The first voltage regulator module 300 includes a first TVS diode 310, a second TVS diode 320, and a detection resistor 330. One end of the detection resistor 330 is electrically connected to the first detection port 210, and the other end is electrically connected to the input module 100. The first TVS diode 310 and the second TVS diode 320 are connected in parallel, and the other end of the detection resistor 330 is grounded through the first TVS diode 310. The second voltage regulator module 400 includes a third TVS diode 410 and a second TVS diode 420. Four TVS diodes 420 are used. The first detection port 210 is grounded through the third TVS diode 410, and the second detection port 220 is grounded through the fourth TVS diode 420. The accumulated static electricity is conducted to the ground terminal through the first TVS diode 310, the second TVS diode 320, the third TVS diode 410, and the fourth TVS diode 420, thereby preventing the accumulated static electricity from damaging the circuit and improving the stability of the human-machine interaction device. In addition, the display module 500 is electrically connected to the control module 200. The control module 200 can collect the voltage signal on the first detection port 210 to control the display module 500 to issue a warning, thereby timely reminding the user of the risks in the circuit and improving the maintenance efficiency of the circuit.

[0046] Additionally, refer to Figure 2 and Figure 3 In some embodiments of this application, the number of second detection ports 220 is multiple, and the number of fourth TVS tubes 420 is the same as the number of second detection ports 220.

[0047] It should be noted that each second detection port 220 has a corresponding fourth TVS diode 420. For example, there are four second detection ports 220 and four fourth TVS diodes 420. Each second detection port 220 is connected to the control port of the input module 100. Therefore, each fourth TVS diode 420 can provide electrostatic protection for the control port of the input module 100.

[0048] Based on this, there are multiple second detection ports 220, and the number of fourth TVS tubes 420 is the same as the number of second detection ports 220, which can provide multi-port electrostatic protection for the input module 100, thereby improving the stability of the circuit.

[0049] Additionally, refer to again Figure 2 In some embodiments of this application, a filtering module 600 is also included. The filtering module 600 includes a first filtering capacitor 610 and a second filtering capacitor 620. The first filtering capacitor 610 and the second filtering capacitor 620 are connected in parallel, and the other end of the detection resistor 330 is grounded through the first filtering capacitor 610.

[0050] Based on this, the first filter capacitor 610 and the second filter capacitor 620 are connected in parallel, and the other end of the detection resistor 330 is grounded through the first filter capacitor 610. This can bypass high-frequency noise to ground through a low-impedance path, prevent interference from entering sensitive circuits, and improve circuit stability.

[0051] Additionally, refer to again Figure 2 and reference Figure 8 , Figure 8 The circuit schematic diagram of the power management module provided in the embodiments of this application is shown. In some embodiments of this application, a voltage source 740 is also included. The voltage source 740 is electrically connected to one end of the filter inductor 750, and the other end of the filter inductor 750 is grounded through the first TVS diode 310.

[0052] Based on this, the voltage source 740 is electrically connected to one end of the filter inductor 750, and the other end of the filter inductor 750 is grounded through the first TVS diode 310. The filter inductor 750 can slow down the rise rate of the surge current, allowing the first TVS diode 310 to have a longer response time, while limiting the peak value of the transient current, reducing the power consumption and thermal damage risk of the first TVS diode 310. In addition, the high-frequency impedance of the filter inductor 750 will filter out the high-frequency ripple in the voltage source 740, improving the purity of the power supply.

[0053] Additionally, refer to again Figure 3 and Figure 8 In some embodiments of this application, a power management module 700 is also included. The power management module 700 includes a first voltage conversion unit 710 and a second voltage conversion unit 720. The voltage source 740 is electrically connected to the second voltage conversion unit 720 through the first voltage conversion unit 710. The second voltage conversion unit 720 is electrically connected to the control module 200.

[0054] The power management module 700 also includes a third voltage conversion unit 730, and the second voltage conversion unit 720 is electrically connected to the control module 200 through the third voltage conversion unit 730.

[0055] The first voltage conversion unit 710 and the second voltage conversion unit 720 are both used to convert a higher input voltage into a lower output voltage. For example, the output voltage of the voltage source 740 is 7V, the output voltage of the first voltage conversion unit 710 is 5V, the output voltage of the second voltage conversion unit 720 is 3.3V, and the output voltage of the third voltage conversion unit 730 is 1.26V.

[0056] Based on this, the power management module 700 includes a first voltage conversion unit 710 and a second voltage conversion unit 720. The voltage source 740 is electrically connected to the second voltage conversion unit 720 through the first voltage conversion unit 710. The second voltage conversion unit 720 is electrically connected to the control module 200. Since different modules have different voltage sensitivities, voltage conversion provides precise voltage to each module. Therefore, independent conversion ensures that each module works at the optimal voltage point, which can improve the stability of each module.

[0057] Additionally, refer to again Figure 2 and Figure 3 In some embodiments of this application, a resistor array 230 is also included, and the first detection port 210 and the second detection port 220 are electrically connected to the input module 100 through the resistor array 230.

[0058] Among them, the resistor array 230 is made by encapsulating several resistors with identical parameters together. For example, the resistor array 230 may include four resistors. The first detection port 210 is electrically connected to the input module 100 through the second resistor in the resistor array 230. The number of second detection ports 220 may be three. Each second detection port 220 corresponds to the remaining three resistors in the resistor array 230. The second detection port 220 is electrically connected to the input module 100 through the corresponding resistor in the resistor array 230.

[0059] Based on this, the first detection port 210 and the second detection port 220 are electrically connected to the input module 100 through a resistor array 230. By replacing multiple discrete resistors with a single resistor array 230 package, the PCB area can be reduced. Furthermore, since the resistance values ​​of the resistors within the same resistor array 230 are relatively small, the signal balance of each port can be improved.

[0060] Additionally, refer to again Figure 3 and reference Figure 6 , Figure 6 The circuit diagram of the serial communication module provided in the embodiments of this application is shown. Some embodiments of this application also include a serial communication module 800, which is electrically connected to the control module 200.

[0061] Specifically, the serial port input port M_RXD of the control module 200 is electrically connected to the collector of the first transistor Q4 through resistor R8, the voltage source 740 is electrically connected to the collector of the first transistor Q4 through resistor R7, the serial port input port M_RXD of the control module 200 is electrically connected to the emitter of the first transistor Q4 through capacitor C7, the emitter of the first transistor Q4 is also grounded, the emitter of the first transistor Q4 is electrically connected to the base of the first transistor Q4 through the first Zener diode ZD2, and the base of the first transistor Q4 is electrically connected to the input terminal RX of the serial communication module 800 through resistor R15.

[0062] Specifically, the serial port output port M_TXD of the control module 200 is electrically connected to the base of the second transistor Q15, and the serial port output port M_TXD of the control module 200 is electrically connected to the emitter of the second transistor Q15 through capacitor C42. The emitter of the second transistor Q15 is also grounded. The emitter of the second transistor Q15 is electrically connected to the collector of the second transistor Q15 through capacitor C66. The collector of the second transistor Q15 is electrically connected to the cathode of the second Zener diode ZD1 through resistor R25. The anode of the second Zener diode ZD1 is grounded, and the cathode of the second Zener diode ZD1 is electrically connected to the output terminal TX of the serial communication module 800 through resistor R14.

[0063] Based on this, the serial communication module 800 is electrically connected to the control module 200, providing more communication methods for the human-computer interaction device and improving its practicality.

[0064] Additionally, refer to again Figure 3 and reference Figure 7 , Figure 7 The circuit diagram of the wireless communication module provided in the embodiments of this application is shown. In some embodiments of this application, the wireless communication module 810 is also included, and the wireless communication module 810 is electrically connected to the control module 200.

[0065] Among them, the wireless communication module 810 is a WIFI module.

[0066] The wireless communication control port WIFI_IO of the control module 200 is electrically connected to the WIFI module through the third transistor Q10, and the wireless communication control port WIFI_IO of the control module 200 is used to control the working mode of the WIFI module; the wireless communication input port W_TXD of the control module 200 is electrically connected to the WIFI module through the fourth transistor Q2 and the fifth transistor Q3 connected in sequence; the wireless communication input port W_RXD of the control module 200 is electrically connected to the WIFI module through the sixth transistor Q8 and the seventh transistor Q7 connected in sequence.

[0067] Based on this, the wireless communication module 810 is electrically connected to the control module 200, providing more communication methods for the human-computer interaction module and improving the practicality of the human-computer interaction device.

[0068] Additionally, refer to again Figure 3 and reference Figure 9 , Figure 9 The circuit diagram of the storage module provided in the embodiments of this application is shown. In some embodiments of this application, a first storage module 900 is also included, which is electrically connected to the control module 200.

[0069] The first storage module 900 is a flash memory, and the specific model can be W25Q128, but this embodiment is not limited to it.

[0070] It also includes a second storage module 910, which is electrically connected to the control module 200, and the second storage module 910 is an SD card.

[0071] Among them, the Secure Digital (SD) card is a portable multimedia storage card used to expand storage capacity or transfer data.

[0072] Based on this, the first storage module 900 is electrically connected to the control module 200, which can improve system performance.

[0073] Additionally, refer to again Figure 3 and Figure 4 and reference Figure 5 , Figure 5 The circuit diagram of the backlight interface circuit provided in the embodiments of this application is shown. In some embodiments of this application, the backlight interface circuit 510 is also included, and the display module 500 is electrically connected to the control module 200 through the backlight interface circuit 510.

[0074] In this configuration, the signal control port PWMI of the control module 200 is electrically connected to the gate of the first MOSFET Q1, the source of the first MOSFET Q1 is grounded, the drain of the first MOSFET Q1 is electrically connected to the anode of the diode D6, the cathode of the diode D6 is electrically connected to the first backlight control port LED+ of the display module 500, the cathode of the diode D6 is electrically connected to the cathode of the third Zener diode D7, the anode of the third Zener diode D7 is grounded through capacitor C49, and the anode of the third Zener diode D7 is electrically connected to the second backlight control port LED- of the display module 500 through resistor R36.

[0075] Based on this, the display module 500 is electrically connected to the control module 200 through the backlight interface circuit 510, which enables precise brightness control and improves display uniformity.

[0076] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A human-computer interaction device, characterized in that, include: Input module; The control module is provided with a first detection port and a second detection port, which are electrically connected to the input module respectively. The first voltage regulator module includes a first TVS diode, a second TVS diode, and a detection resistor. One end of the detection resistor is electrically connected to the first detection port, and the other end of the detection resistor is electrically connected to the input module. The first TVS diode and the second TVS diode are connected in parallel, and the other end of the detection resistor is grounded through the first TVS diode. The second voltage regulator module includes a third TVS diode and a fourth TVS diode. The first detection port is grounded through the third TVS diode, and the second detection port is grounded through the fourth TVS diode. The display module is electrically connected to the control module, wherein the control module is used to collect the voltage signal on the first detection port in order to control the display module to issue an early warning.

2. The human-computer interaction device according to claim 1, characterized in that, The number of the second detection ports is multiple, and the number of the fourth TVS tubes is the same as the number of the second detection ports.

3. The human-computer interaction device according to claim 1, characterized in that, It also includes a filtering module, which includes a first filtering capacitor and a second filtering capacitor. The first filtering capacitor and the second filtering capacitor are connected in parallel, and the other end of the detection resistor is grounded through the first filtering capacitor.

4. The human-computer interaction device according to claim 1, characterized in that, It also includes a voltage source, which is electrically connected to one end of a filter inductor, and the other end of the filter inductor is grounded through the first TVS diode.

5. The human-machine interaction device of claim 4, wherein, It also includes a power management module, which includes a first voltage conversion unit and a second voltage conversion unit. The voltage source is electrically connected to the second voltage conversion unit through the first voltage conversion unit, and the second voltage conversion unit is electrically connected to the control module.

6. The human-machine interaction device of claim 1, wherein, It also includes a resistor array, with the first detection port and the second detection port electrically connected to the input module via the resistor array.

7. The human-machine interaction device of claim 1, wherein, It also includes a serial communication module, which is electrically connected to the control module.

8. The human-machine interaction device of claim 1, wherein, It also includes a wireless communication module, which is electrically connected to the control module.

9. The human-machine interaction device of claim 1, wherein, It also includes a first storage module, which is electrically connected to the control module.

10. The human-machine interaction device of claim 1, wherein, It also includes a backlight interface circuit, through which the display module is electrically connected to the control module.

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