Human body static electricity detection auxiliary enhancement device

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By integrating a signal enhancement unit and a touch display screen, the problem of insufficient sensitivity in existing electrostatic detection devices is solved, achieving high sensitivity and stability in human body electrostatic detection, and providing an intuitive user interface.

CN223180304UActive Publication Date: 2025-08-01BEIJING STARRY SKY INTELLIGENT AVIATION TECHNOLOGY CO LTD

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Patent Information

Application Number: CN202422280172.0
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-09-18
Publication Date: 2025-08-01
Estimated Expiration: 2034-09-18

AI Technical Summary

Technical Problem

Existing electrostatic detection devices lack sufficient sensitivity when detecting static electricity in the human body, making it difficult to capture weak signals. Furthermore, environmental factors affect the accuracy of the detection results, and there is a lack of environmental compensation mechanisms.

Method used

A human body electrostatic detection auxiliary enhancement device was designed, including a detection ring, a signal enhancement unit, a detection control unit, a microcontroller, and a touch display screen. The device improves signal detection sensitivity through clamping protection circuit and amplification conditioning circuit, and provides an intuitive user interface.

Benefits of technology

It significantly improves the sensitivity and accuracy of electrostatic detection, ensures the accurate capture and amplification of weak electrostatic signals, and enhances the measurement stability and ease of use of the device under different environmental conditions.

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Abstract

The utility model discloses an auxiliary enhancement device for human body static electricity detection. The auxiliary enhancement device comprises a detection ring, a signal enhancement unit, a detection control unit, a microcontroller and a touch display screen, the signal enhancement unit comprises a clamping protection circuit which is used for carrying out voltage clamping and stabilizing processing on electrostatic charges output by the detection ring; and the amplification conditioning circuit is used for amplifying and shaping the output signal of the clamping protection circuit so as to facilitate identification and processing of the microprocessor. According to the device, the high-sensitivity signal enhancement unit is integrated, so that the sensitivity of electrostatic detection is remarkably improved, and accurate capture and amplification of weak electrostatic signals are ensured; according to the system, accurate control over the detection process is achieved, a visual user interaction interface is provided through the touch display screen, the detection result can be displayed in real time, detection parameters are adjusted or the detection process is started / stopped according to a user instruction, and the usability and the intelligent level of equipment are greatly improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of human body static electricity detection, in particular to an auxiliary enhancement device for human body static electricity detection. Background Art

[0002] With the rapid development of electronic technology, electrostatic discharge (ESD) has become an increasingly serious problem in the fields of electronic device manufacturing, data processing, medical device operation, etc. Currently, the mainstream static electricity detection devices on the market mostly rely on electrometers or electrostatic induction devices, and these devices face many challenges when detecting human body static electricity. First of all, the electric charge amount of human body static electricity is usually relatively weak, and the existing static electricity detection devices often have difficulty capturing these subtle signals due to insufficient detection sensitivity, resulting in frequent missed detections and high false detection rates. Secondly, environmental factors and the sensitivity limitations of the devices themselves directly affect the generation, accumulation, and dissipation processes of static electricity, thereby affecting the accuracy of detection results. The existing static electricity detection devices often lack a compensation mechanism for environmental factors and are difficult to provide stable and reliable measurement results in complex and changeable environments.

[0003] Therefore, the utility model provides a new solution to solve this problem. Summary of the Utility Model

[0004] In view of the above situation, in order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an auxiliary enhancement device for human body static electricity detection.

[0005] The technical solution it adopts is: an auxiliary enhancement device for human body static electricity detection, including:

[0006] A detection finger ring, which contacts with the user's finger and is used to capture the static electricity charges on the human body surface;

[0007] A signal enhancement unit, which is electrically connected to the detection finger ring and is used to perform signal amplification processing on the static electricity charges;

[0008] A detection control unit, which is electrically connected to the signal enhancement unit and is used to control the subsequent conduction state of the signal output by the signal enhancement unit;

[0009] A microcontroller, which is used to receive the signal from the detection control unit and perform further processing and analysis;

[0010] A touch display screen, which is connected to the microcontroller through an SPI serial port and is used to display the detection results and provide a user interaction interface.

[0011] Preferably, the signal enhancement unit includes:

[0012] A clamping protection circuit, which is used to perform voltage clamping and stabilization processing on the static electricity charges output by the detection finger ring;

[0013] An amplification conditioning circuit is used to amplify and shape the output signal of the clamping protection circuit for the recognition and processing by the microprocessor.

[0014] Preferably, the clamping protection circuit includes diode D1, diode D2, resistor R1 and capacitor C1. The cathode of diode D1 is connected to one end of resistor R1 and capacitor C1, and the anode of diode D2. The other end of resistor R1 is electrically connected to the detection ring, the other end of capacitor C1 is grounded through the anode of diode D1, and the cathode of diode D2 is connected to power supply VCC.

[0015] Preferably, the amplification conditioning circuit includes operational amplifier AR1. The non-inverting input terminal of operational amplifier AR1 is connected to one end of capacitor C1. The inverting input terminal of operational amplifier AR1 is connected to the output terminal of operational amplifier AR1 through resistor R2 and capacitor C2 in parallel, and is connected to one end of capacitor C3 through resistor R3. The other end of capacitor C3 is grounded.

[0016] Preferably, the detection control unit includes triode Q1 and triode Q2. The emitter of triode Q1 is connected to one end of resistor R4 and the output terminal of operational amplifier AR1. The base of triode Q1 is connected to the other end of resistor R4 and the collector of triode Q2. The base of triode Q2 is connected to one end of resistor R5 and capacitor C4. The emitter of triode Q2 is grounded through the other end of capacitor C4. The other end of resistor R5 is connected to the control signal output terminal of the microprocessor. The collector of triode Q1 is connected to one end of resistor R6 and the electrostatic detection input terminal of the microprocessor. The other end of resistor R6 is grounded through capacitor C5.

[0017] Preferably, the microcontroller selects the STC12C5A32S2-35I type MCU.

[0018] Preferably, the detection ring is made of conductive metal material.

[0019] Preferably, it further includes an indication circuit. The indication circuit includes light-emitting diode D10 and triode Q3. The positive pole of light-emitting diode D10 is connected to power supply VCC. The negative pole of light-emitting diode D10 is connected to the collector of triode Q3 through resistor R11. The base of triode Q3 is connected to the microcontroller through resistor R12. The emitter of triode Q3 is grounded.

[0020] Through the above technical solutions, the beneficial effects of the present utility model are:

[0021] 1. The device significantly improves the sensitivity of electrostatic detection by integrating a highly sensitive signal enhancement unit, ensuring the accurate capture and amplification of weak electrostatic signals. The signal enhancement unit in the device is designed with a clamping protection circuit, which can stabilize the input signal voltage and prevent damage to the circuit caused by environmental voltage fluctuations or sudden electrostatic shocks. At the same time, the amplification and conditioning circuit can significantly improve the signal-to-noise ratio of electrostatic signals, making it easier for the microprocessor to identify useful electrostatic signals and enhancing the measurement stability and accuracy of the device under different environmental conditions;

[0022] 2. The system not only realizes the precise control of the detection process, but also provides an intuitive user interface through the touch display screen, which can display the detection results in real time, and adjust the detection parameters or start / stop the detection process according to user instructions, greatly improving the usability and intelligence level of the device. Brief Description of the Drawings

[0023] Figure 1 It is the system module structure diagram of the present utility model.

[0024] Figure 2 It is the circuit schematic diagram of the signal enhancement unit and the detection control unit in the present utility model.

[0025] Figure 3 It is the circuit schematic diagram of the microcontroller in the present utility model.

[0026] Figure 4 It is the circuit schematic diagram of the indication circuit in the present utility model. Detailed Description of the Preferred Embodiment

[0027] Regarding the foregoing and other technical contents, features and effects of the present utility model, they will be clearly presented in the following detailed description of the embodiments in conjunction with the attached drawings. The structural contents mentioned in the following embodiments are all referenced to the drawings of the specification. Figure 1 to attached Figure 4 In the detailed description of the embodiments, it will be clearly presented. The structural contents mentioned in the following embodiments are all referenced to the drawings of the specification.

[0028] The following will describe the exemplary embodiments of the present utility model with reference to the drawings.

[0029] As Figure 1 shown, a human body electrostatic detection auxiliary enhancement device includes:

[0030] A detection finger ring, which contacts the user's finger and is used to capture the electrostatic charge on the human body surface;

[0031] A signal enhancement unit, which is electrically connected to the detection finger ring and is used to perform signal amplification processing on the electrostatic charge;

[0032] A detection control unit, which is electrically connected to the signal enhancement unit and is used to control the subsequent conduction state of the signal output by the signal enhancement unit;

[0033] A microcontroller, which is used to receive signals from the detection control unit and perform further processing and analysis;

[0034] A touch display screen, which is connected to the microcontroller through an SPI serial port and is used to display detection results and provide a user interaction interface.

[0035] Among them, the detection ring is made of a highly conductive metal material, such as stainless steel or copper alloy, to ensure that when it comes into contact with the user's finger, it can effectively capture and conduct the static charges on the human body surface. The detection ring, as a preliminary collector of static charges, converts the static charges on the human body surface into electrical signals and sends the electrical signals into the signal enhancement unit for further processing.

[0036] Specifically, the signal enhancement unit includes:

[0037] A clamping protection circuit, which is used to perform voltage clamping and stabilization processing on the static charges output by the detection ring;

[0038] An amplification and conditioning circuit, which is used to amplify and shape the output signal of the clamping protection circuit for the recognition and processing of the microprocessor.

[0039] As Figure 2 shown, among them, the clamping protection circuit 21 includes a diode D1, a diode D2, a resistor R1 and a capacitor C1. The cathode of the diode D1 is connected to the anode of the diode D2, one end of the resistor R1 and one end of the capacitor C1. The other end of the resistor R1 is electrically connected to the detection ring 10. The other end of the capacitor C1 is grounded through the anode of the diode D1. The cathode of the diode D2 is connected to the power supply VCC.

[0040] The amplification and conditioning circuit 22 includes an operational amplifier AR1. The non-inverting input terminal of the operational amplifier AR1 is connected to one end of the capacitor C1. The inverting input terminal of the operational amplifier AR1 is connected to the output terminal of the operational amplifier AR1 through a parallel connection of a resistor R2 and a capacitor C2, and is connected to one end of a capacitor C3 through a resistor R3. The other end of the capacitor C3 is grounded.

[0041] The specific working process of the above signal enhancement unit is as follows: When the detection ring 10 captures static charges and generates a voltage signal, the signal first enters the clamping protection circuit 21 through the resistor R1. Among them, since the forward conduction voltage drops of the diodes D1 and D2 are relatively stable and have small values, the input signal voltage can be clamped between VCC and ground, preventing the signal voltage from being too high and damaging the subsequent circuits. At the same time, the buffering effect of the capacitor C1 also helps to further stabilize the signal, making the signal more stable and smooth. Subsequently, the signal output by the clamping protection circuit 21 enters the amplification and conditioning circuit 22. The operational amplifier AR1 acts as the main amplifier to quickly amplify the static electricity signal. The parallel resistor R2 and capacitor C2 perform integral shaping on the static electricity signal at its negative feedback end, making the waveform of the static electricity signal more regular and easier to identify. The capacitor C3 is usually connected in series with the resistor R3 and grounded. Since the capacitor C3 presents a low impedance to high-frequency signals, it can effectively eliminate the thermal noise in the circuit and reduce the noise influence caused by power supply fluctuations or temperature changes.

[0042] The detection and control unit is used to control the subsequent conduction state of the signal output by the above signal enhancement unit. Specifically, as Figure 2 shown, the detection and control unit 30 includes a triode Q1 and a triode Q2. The emitter of the triode Q1 is connected to one end of the resistor R4 and the output end of the operational amplifier AR1. The base of the triode Q1 is connected to the other end of the resistor R4 and the collector of the triode Q2. The base of the triode Q2 is connected to one end of the resistor R5 and the capacitor C4. The emitter of the triode Q2 is grounded with the other end of the capacitor C4. The other end of the resistor R5 is connected to the control signal output end of the microprocessor. The collector of the triode Q1 is connected to one end of the resistor R6 and the static electricity detection input end of the microprocessor. The other end of the resistor R6 is grounded through the capacitor C5.

[0043] The specific working principle of the detection and control unit 30 is as follows: When the system is in the standby state and the microprocessor does not issue a control signal, the triode Q2 is in the cut-off state, and its collector potential is relatively high, resulting in the triode Q1 also being in the cut-off state. At this time, the static electricity signal amplified by the operational amplifier AR1 cannot be transmitted to the static electricity detection input end of the microprocessor through Q1. When the detection starts, the microprocessor issues a high-level signal at its control signal output end. This signal reaches the base of the triode Q2 after being filtered by the resistor R5 and the capacitor C4, thereby making it conduct. The collector potential of the triode Q2 drops, causing the base potential of Q1 to decrease, and then making Q1 conduct. At this time, the static electricity signal amplified by the operational amplifier AR1 is transmitted to the static electricity detection input end of the microprocessor through Q1.

[0044] In specific implementation, as Figure 3As shown, the microcontroller selects the STC12C5A32S2-35I type MCU. This MCU adopts a low-power design, which can reduce energy consumption while maintaining high performance, and extend the service time of the device. At the same time, it provides a variety of communication interfaces, including SPI, I2C, UART, etc. When working specifically, this MCU sends display instructions to the touch display screen through the SPI serial port to display the detection results; at the same time, according to the instructions input by the user through the touch display screen, it adjusts the detection parameters or starts / stops the detection process.

[0045] In addition, the device is also provided with an indication circuit, such as Figure 4 As shown, the indication circuit includes a light-emitting diode D10 and a triode Q3. The positive pole of the light-emitting diode D10 is connected to the power supply VCC, the negative pole of the light-emitting diode D10 is connected to the collector of the triode Q3 through a resistor R11, the base of the triode Q3 is connected to the microcontroller through a resistor R12, and the emitter of the triode Q3 is grounded. This indication circuit is used to indicate the detection state of the device. When the system is in the standby state, the microcontroller controls the triode Q3 to cut off, and then controls the light-emitting diode D10 not to work; on the contrary, when the system is in the working state, the microcontroller controls the triode Q3 to conduct, and then controls the light-emitting diode D10 to light up.

[0046] To sum up, the human body static electricity detection and auxiliary enhancement device of the present application significantly improves the sensitivity of static electricity detection by integrating a high-sensitivity signal enhancement unit, ensuring the accurate capture and amplification of weak static electricity signals. The signal enhancement unit in the device is designed with a clamping protection circuit, which can stabilize the input signal voltage and prevent damage to the circuit caused by environmental voltage fluctuations or sudden static electricity impacts. At the same time, the amplification and conditioning circuit accumulates the energy of the static electricity signal through integral shaping of the signal, while the energy of the noise is relatively dispersed. Therefore, the signal enhancement unit can significantly improve the signal-to-noise ratio of the static electricity signal, making the useful static electricity signal easier to be recognized by the microprocessor to achieve the best detection effect.

[0047] The system also uses the high-performance STC12C5A32S2-35I type MCU as the microcontroller, which not only realizes the precise control of the detection process, but also provides an intuitive user interface through the touch display screen, can display the detection results in real time, and adjust the detection parameters or start / stop the detection process according to the user's instructions, greatly improving the usability and intelligent level of the device.

[0048] The above is a further detailed description of the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to this; for those skilled in the art of the present invention and related technical fields, based on the technical solution idea of the present invention, the expansions, operation methods, and data replacements should all fall within the protection scope of the present invention.

Claims

1. An auxiliary enhancement device for detecting human body static electricity, characterized in that, Including: A detection ring that contacts the user's finger and is used to capture the static charge on the human body surface; A signal enhancement unit electrically connected to the detection ring and used to perform signal amplification processing on the static charge; A detection control unit electrically connected to the signal enhancement unit and used to control the subsequent conduction state of the signal output by the signal enhancement unit; A microcontroller used to receive the signal from the detection control unit and perform further processing and analysis; A touch display screen connected to the microcontroller through an SPI serial port and used to display the detection results and provide a user interaction interface.

2. The human body static electricity detection auxiliary enhancement device according to claim 1, characterized in that, The signal enhancement unit includes: A clamping protection circuit used to perform voltage clamping and stabilization processing on the static charge output by the detection ring; An amplification conditioning circuit used to amplify and shape the output signal of the clamping protection circuit for the recognition and processing of the microcontroller.

3. The human body static electricity detection auxiliary enhancement device according to claim 2, characterized in that, The clamping protection circuit includes diode D1, diode D2, resistor R1, and capacitor C1. The cathode of diode D1 is connected to one end of resistor R1 and capacitor C1, and the anode of diode D2. The other end of resistor R1 is electrically connected to the detection ring, the other end of capacitor C1 is grounded through the anode of diode D1, and the cathode of diode D2 is connected to power supply VCC.

4. The auxiliary enhancement device for human body static electricity detection according to claim 3, characterized in that, The amplification conditioning circuit includes operational amplifier AR1. The non-inverting input terminal of operational amplifier AR1 is connected to one end of capacitor C1. The inverting input terminal of operational amplifier AR1 is connected to the output terminal of operational amplifier AR1 through resistor R2 and capacitor C2 in parallel, and is connected to one end of capacitor C3 through resistor R3. The other end of capacitor C3 is grounded.

5. The human body static electricity detection auxiliary enhancement device according to claim 4, characterized in that, The detection control unit includes transistor Q1 and transistor Q2. The emitter of transistor Q1 is connected to one end of resistor R4 and the output terminal of operational amplifier AR1. The base of transistor Q1 is connected to the other end of resistor R4 and the collector of transistor Q2. The base of transistor Q2 is connected to one end of resistor R5 and capacitor C4. The emitter of transistor Q2 is grounded through the other end of capacitor C4. The other end of resistor R5 is connected to the control signal output terminal of the microcontroller. The collector of transistor Q1 is connected to one end of resistor R6 and the static electricity detection input terminal of the microcontroller. The other end of resistor R6 is grounded through capacitor C5.

6. The human body static electricity detection auxiliary enhancement device according to claim 1, characterized in that, The microcontroller selects the STC12C5A32S2-35I type MCU.

7. An auxiliary enhancement device for human static electricity detection according to claim 1, characterized in that, The detection ring is made of conductive metal material.

8. The human body static electricity detection auxiliary enhancement device according to claim 1, characterized in that, It also includes an indication circuit. The indication circuit includes light-emitting diode D10 and transistor Q3. The positive electrode of light-emitting diode D10 is connected to power supply VCC. The negative electrode of light-emitting diode D10 is connected to the collector of transistor Q3 through resistor R11. The base of transistor Q3 is connected to the microcontroller through resistor R12. The emitter of transistor Q3 is grounded.