Portable special operation certificate multi-information acquisition terminal

Abstract

The utility model discloses a portable special operation certificate multi-information acquisition terminal, and belongs to the technical field of special operation certificate data acquisition. According to the portable special operation certificate multi-information acquisition terminal, the data acquisition module, the data storage module and the microprocessor module are arranged, and the microprocessor module is used for controlling the data acquisition module to acquire related data of a special operation certificate and outputting corresponding detection results through the touch screen input and display module and the voice broadcast module; the function of acquiring information required for detecting the special operation certificate online is realized; the data acquisition module comprises a camera module, a voice input module, an NFC module, a key module and a fingerprint acquisition module; according to the method, multivariate data can be acquired, and one or more data acquisition modules are selected to acquire the related data of the characteristic operation certificate according to the field condition, so that the verification of the special operation certificate can be conveniently performed according to the acquired data subsequently, and the problem of low verification efficiency of the existing operation certificate verification system is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of special operation certificate data acquisition, and particularly relates to a portable multi-information acquisition terminal for special operation certificates. Background Art

[0002] Verifying special high-altitude operation certificates is an important measure to ensure safety and compliance. High-altitude operations involve relatively high safety risks. Personnel holding certificates must possess the necessary skills and knowledge to deal with potential dangers. Verifying high-altitude operation certificates can ensure that only trained and qualified personnel can perform high-altitude operations, thereby reducing the probability of accidents. By verifying high-altitude operation certificates, employers can quickly confirm the qualifications of operators, avoid operation delays and safety hazards caused by unqualified personnel, and thus improve the overall operation efficiency. Verifying high-altitude operation certificates can effectively prevent the forgery and abuse of certificates, and ensure the true identity and qualifications of certificate holders.

[0003] Currently, existing high-altitude operation certificates mainly exist in paper form, and the verification method mainly relies on manual inspection. The cost of paper forgery is relatively low, which leads to low reliability of manual inspection. With the progress of technology, high-altitude operation certificates can be queried and verified through an online system. As long as the database is well protected, it is very difficult to forge. Currently, the main verification method is to query by inputting the key information of the operator. Since the process of inputting the key information of the operator takes a long time, the verification efficiency is low.

[0004] In summary, the existing high-altitude operation certificate verification system has the problem of low verification efficiency. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a portable multi-information acquisition terminal for special operation certificates in view of the above-mentioned deficiencies in the prior art. The design is novel and reasonable, the structure is simple, the practicability is strong, and it is convenient for popularization and use.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A portable multi-information acquisition terminal for special operation certificates includes a microprocessor module, a touch screen input and display module, a data storage module, a power supply module, a voice broadcast module, a WiFi module, and a data acquisition module;

[0008] The data acquisition module and the touch screen input and display module are used to collect data related to the work permit. The touch screen input and display module is also used to display data. The data storage module is used to store the collected data. The microprocessor module is used to control the data acquisition module to collect relevant data of the special operation permit. The voice broadcast module is used to broadcast the relevant data of the collected special operation permit. The WiFi module is used to realize communication with other terminals. The power supply module is used to supply power to each module;

[0009] The microprocessor module includes a microprocessor, a first reset circuit and a first crystal oscillator circuit; the microprocessor includes a clock input pin, a clock output pin and a reset pin; the first reset circuit includes a reset button, a first resistor and a first capacitor; one end of the reset button is respectively connected to the reset pin and the power output terminal, the other end of the reset button is grounded, and the first resistor and the first capacitor are connected in series and then connected in parallel with the reset button; the first crystal oscillator circuit includes a first crystal oscillator, a second capacitor and a third capacitor; one end of the first crystal oscillator is respectively connected to the clock input pin and one end of the second capacitor, the other end is respectively connected to the clock output pin and one end of the third capacitor, and the other ends of the second capacitor and the third capacitor are connected in parallel and then grounded; the microprocessor also includes a plurality of input and output pins for input or output of analog signals;

[0010] The touch screen input and display module includes a touch sensor, a controller, a display screen and a driving circuit; the controller transmits the touch signal of the touch sensor to the display screen through the driving circuit for display;

[0011] The data storage module includes 8 pins. The first pin, the second pin, the third pin, the fourth pin and the seventh pin of the data storage module are all grounded. The fifth pin and the sixth pin of the data storage module are respectively connected to the input and output pins of the microprocessor for data transmission. The eighth pin of the data storage module is connected to the output terminal of the power supply module;

[0012] The voice broadcast module is connected to the microprocessor through an 8-pin plug for converting text data into voice data;

[0013] The data acquisition module includes a camera module, a voice input module, an NFC module, a button module and a fingerprint acquisition module;

[0014] The camera module is respectively connected to the microprocessor and the power module; the voice input module is used to convert voice data into text data, and the voice input module is connected to the microprocessor; the NFC module is connected to the microprocessor and is used to read data in other IC cards; the button module includes 4 buttons, one end of each button is grounded, and the other end is connected to the input / output pins of the microprocessor; the fingerprint acquisition module includes 6 pins. The first pin and the sixth pin of the fingerprint acquisition module are used to be connected to the output end of the power module, the fourth pin of the fingerprint acquisition module is used to be grounded, and the second pin, the third pin, and the fifth pin of the fingerprint acquisition module are respectively connected to the input / output pins of the microprocessor.

[0015] Further, the touch sensor includes a measurement circuit and a touch button. The measurement circuit is electrically connected to the touch button, and the measurement circuit is used to detect the potential change of the touch button to determine whether a touch is sent.

[0016] Further, the touch sensor further includes a second resistor and a first triode; the collector of the first triode is connected to the measurement circuit in series with the second resistor, the base of the first triode is connected to the touch button, and the emitter of the first triode is grounded.

[0017] Further, the measurement circuit uses a dual voltage comparator integrated circuit.

[0018] Further, the voice broadcast module includes a voice chip, a reverse circuit, a second reset circuit, and a second crystal oscillator circuit;

[0019] The reverse circuit includes a third resistor, a fourth resistor, a fifth resistor, and a second triode. The collector of the second triode is connected to the data receiving pin of the voice chip through the third resistor and to the power pin of the 8-pin plug through the fourth resistor. The base of the second triode is connected to the positive receiving signal pin of the 8-pin plug through the third resistor, and the emitter of the second triode is grounded;

[0020] The second reset circuit includes a reset switch, a sixth resistor, and a fourth capacitor. One end of the reset switch and the fourth capacitor are both connected to the reset pin of the 8-pin plug, and the other end is grounded. One end of the sixth resistor is connected to the reset pin of the 8-pin plug, and the other end is connected to the power pin of the 8-pin plug;

[0021] The second crystal oscillator circuit includes a second crystal oscillator, a fifth capacitor, and a sixth capacitor. One end of the second crystal oscillator is respectively connected to the clock input pin of the voice chip and one end of the fifth capacitor, and the other end of the second crystal oscillator is respectively connected to the clock output pin of the voice chip and one end of the sixth capacitor. The other ends of the fifth capacitor and the sixth capacitor are both grounded.

[0022] Further, the WiFi module includes a WiFi chip, a voltage regulator, a seventh capacitor, an eighth capacitor, a ninth capacitor, and a 6-pin plug. The transmitting pin and receiving pin of the WiFi chip are respectively connected to the fourth pin and third pin of the 6-pin plug through series-connected voltage-regulator diodes, and the transmitting pin and receiving pin of the WiFi chip are also respectively connected to the input / output pins of the microprocessor. One end of the seventh capacitor is connected to the input voltage pin of the voltage regulator, and the other end is connected to the ground pin of the voltage regulator. The input voltage pin and ground pin of the voltage regulator are respectively connected to the first pin and second pin of the 6-pin plug. One end of the eighth capacitor is connected to the reference bypass pin of the voltage regulator, and the other end is grounded. The output pin of the voltage regulator is used to connect to the power module.

[0023] The present utility model has the following advantages compared with the prior art:

[0024] The multi-information acquisition terminal for portable special operation certificates of the present utility model realizes the function of obtaining information required for the detection of special operation certificates online by setting a data acquisition module, a data storage module, and a microprocessor module. The microprocessor is used to control the data acquisition module to collect relevant data of the special operation certificate, and output the corresponding acquired data through the touch screen input and display module and the voice broadcast module. The data acquisition module includes a camera module, a voice input module, an NFC module, a key module, and a fingerprint acquisition module. That is, the present application can collect multiple data, and according to the on-site situation, select one or more data acquisition modules to collect relevant data of the characteristic operation certificate, so as to facilitate subsequent verification of the special operation certificate based on the collected data, thereby improving the problem of low verification efficiency existing in the existing operation certificate verification system.

[0025] The technical solution of the present utility model will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of an embodiment of the multi-information acquisition terminal for portable special operation certificates of the present utility model;

[0027] Figure 2 is a schematic circuit diagram of the microprocessor of an embodiment of the multi-information acquisition terminal for portable special operation certificates of the present utility model;

[0028] Figure 3 is a schematic circuit diagram of the touch sensor of an embodiment of the multi-information acquisition terminal for portable special operation certificates of the present utility model;

[0029] Figure 4 is a schematic circuit diagram of the 4-pin plug of an embodiment of the multi-information acquisition terminal for portable special operation certificates of the present utility model;

[0030] Figure 5Schematic diagram of the fingerprint collection module circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0031] Figure 6 Schematic diagram of the data storage module circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0032] Figure 7 Schematic diagram of the key module circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0033] Figure 8 Schematic diagram of the camera module circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0034] Figure 9 Schematic diagram of the voice chip circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0035] Figure 10 Schematic diagram of the reverse circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0036] Figure 11 Schematic diagram of the second reset circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0037] Figure 12 Schematic diagram of the second crystal oscillator circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0038] Figure 13 Schematic diagram of the 8-pin plug circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0039] Figure 14 Schematic diagram of the voice input module circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0040] Figure 15 Schematic diagram of the WiFi module circuit for the portable multi-information collection terminal of special operation certificates of the present utility model;

[0041] Figure 16 Schematic diagram of the NFC module for the portable multi-information collection terminal of special operation certificates of the present utility model. Detailed implementation manners

[0042] Embodiment of the portable multi-information collection terminal of special operation certificates:

[0043] Such as Figure 1As shown in the figure, the portable multi-information acquisition terminal for special operation certificates includes a microprocessor module, a touch screen input and display module, a data storage module, a power supply module, a voice broadcast module, a WiFi module, and a data acquisition module. The output voltage of the power supply module is 3.3V.

[0044] To obtain data related to special operation certificates online, the above-mentioned data acquisition module and touch screen input and display module are used to collect data related to operation certificates. The above-mentioned touch screen input and display module is also used to display data. The above-mentioned data storage module is used to store the collected data. The above-mentioned microprocessor module is used to control the data acquisition module to collect data related to special operation certificates. The above-mentioned voice broadcast module is used to broadcast data related to the collected special operation certificates. The above-mentioned WiFi module is used to communicate with other terminals. The above-mentioned power supply module is used to supply power to each module.

[0045] As Figure 2 shown in the figure, specifically, the microprocessor module includes a microprocessor, a first reset circuit, and a first crystal oscillator circuit. The microprocessor uses STM32F103C8T6. The above-mentioned microprocessor includes a clock input pin OSC_IN, a clock output pin OSC_OUT, and a reset pin RST.

[0046] To facilitate the microprocessor to restore to the initial state for recalculation or operation, the first reset circuit includes a reset button, a first resistor R1 - 10K, and a first capacitor C1 - 1uF. One end of the above-mentioned reset button is respectively connected to the reset pin RST and the power output terminal. The other end of the above-mentioned reset button is grounded. The first resistor R1 - 10K and the first capacitor C1 - 1uF are connected in series and then connected in parallel with the reset button.

[0047] To provide a stable clock signal for the system, the first crystal oscillator circuit includes a first crystal oscillator Y1, a second capacitor C2 - 22pF, and a third capacitor C3 - 22pF. One end of the above-mentioned first crystal oscillator Y1 is respectively connected to one end of the clock input pin OSC_IN and the second capacitor C2 - 22pF. The other end is respectively connected to one end of the clock output pin OSC_OUT and the third capacitor C3 - 22pF. The other ends of the second capacitor C2 - 22pF and the third capacitor C3 - 22pF are connected in parallel and then grounded. The above-mentioned microprocessor also includes multiple input and output pins for input or output of analog signals.

[0048] To facilitate operation and timely detect whether the collected data is correct, the touch screen input and display module includes a touch sensor, a controller, a display screen, and a driving circuit. The controller transmits the touch signal of the touch sensor to the display screen through the driving circuit for display.

[0049] As Figure 3As shown, the touch sensor includes a measurement circuit and a touch button, and the measurement circuit uses a dual voltage comparator integrated circuit LM393DR. The above measurement circuit is electrically connected to the touch button, and the above measurement circuit is used to detect the potential change of the touch button to determine whether a touch is sent.

[0050] As Figure 3 shown, the above touch sensor further includes a second resistor R1 - 150R and a first triode Q1; the collector of the first triode Q1 is connected to the measurement circuit in series after being connected in series with the second resistor R1 - 150R, the base of the first triode Q1 is connected to the touch button, and the emitter of the first triode is grounded. As Figure 4 shown, in order to facilitate the connection between the touch sensor and the display screen, the touch screen input and display module further includes a 4 - pin plug, and the pins numbered 1, 2, 4, and 8 on the touch sensor are respectively used for connecting to Figure 4 the pins numbered 4, 1, 2, and 3 above.

[0051] As Figure 6 shown, the data storage module includes 8 pins, and the data storage module uses AT24C02. The first pin, the second pin, the third pin, the fourth pin, and the seventh pin of the data storage module are all grounded. The fifth pin and the sixth pin of the data storage module are respectively connected to the input / output pins of the microprocessor for data transmission, and the eighth pin of the data storage module is connected to the output terminal of the power supply module. The first pin, the second pin, the third pin, the fourth pin, the fifth pin, the sixth pin, the seventh pin, and the eighth pin respectively correspond to Figure 8 the pins numbered 1, 2, 3, 4, 5, 6, 7, and 8 above.

[0052] As Figures 9 - 13 shown, the above voice broadcast module is connected to the microprocessor through an 8 - pin plug for converting text data into voice data. Specifically, the voice broadcast module includes a voice chip, a reverse circuit, a second reset circuit, and a second crystal oscillator circuit; the voice chip uses SYN6288.

[0053] As Figure 10 shown, the reverse circuit includes a third resistor R4 - 1K, a fourth resistor R5 - 1K, a fifth resistor R3 - 1K, and a second triode. The collector of the second triode is connected to the data receiving pin RXD of the voice chip through the third resistor R4 - 1K and to the power supply pin VDD of the 8 - pin plug through the fourth resistor R5 - 1K. The base of the second triode is connected to the receiving positive signal pin RXDO of the 8 - pin plug through the third resistor R4 - 1K, and the emitter of the second triode is grounded. The second triode refers to Figure 10 the Q1 - S8050_C181158 triode above.

[0054] As Figure 11 shown, the second reset circuit includes a reset switch SW1, a sixth resistor R1-1M, and a fourth capacitor C13. One end of the reset switch and the fourth capacitor are both connected to the reset pin RST of the 8-pin plug, and the other end is grounded. One end of the sixth resistor R1-1M is connected to the reset pin RST of the 8-pin plug, and the other end is connected to the power supply pin VDD of the 8-pin plug.

[0055] As Figure 12 shown, the second crystal oscillator circuit includes a second crystal oscillator X1, a fifth capacitor C14, and a sixth capacitor C15. One end of the second crystal oscillator is respectively connected to the clock input pin XIN of the voice chip and one end of the fifth capacitor C15. The other end of the second crystal oscillator is respectively connected to the clock output pin XOUT of the voice chip and one end of the sixth capacitor C15. The other ends of the fifth capacitor C15 and the sixth capacitor C15 are both grounded.

[0056] To achieve the input of multiple information, the data acquisition module includes a camera module, a voice input module, an NFC module, a button module, and a fingerprint acquisition module.

[0057] Among them, as Figure 8 shown, the camera module is respectively connected to the microprocessor and the power supply module; the camera module uses OV7670. To facilitate the connection of the camera module, the pins of the camera module are integrated into an 18-pin plug. The pins numbered 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, and 18 of the 18-pin plug are sequentially connected to the pins numbered 48, 18, 15, 19, 46, 7, 8, 9, 10, 11, 12, 13, 14, 40, 39, and 44 of the microprocessor.

[0058] One end of a capacitor C1-100nF of the 18-pin plug is connected to the first pin and is connected to the +3.3V voltage output terminal of the power supply module. The other end of the capacitor C1-100nF is connected to the second pin and is grounded. One end of a resistor R1-4.7K, a resistor R2-4.7K, and a resistor R3-4.7K of the 18-pin plug is connected to the third pin, the fourth pin, and the sixth pin. The other ends of the resistor R1-4.7K, the resistor R2-4.7K, and the resistor R3-4.7K are all connected to the +3.3V voltage output terminal of the power supply module.

[0059] As Figure 14As shown in the figure, the voice input module is used to convert voice data into text data, and the above voice input module is connected to the microprocessor. The voice input module uses LD3320. Specifically, the pins numbered 47, 43, 42, 39, 40, 41, 48, 44, and 45 of the voice input module LD3320 are sequentially connected to the pins numbered 34, 32, 31, 47, 46, 45, 10, 33, and 7 of the microprocessor.

[0060] As Figure 16 shown in the figure, the above NFC module is connected to the microprocessor and is used to read data in other IC cards. The NFC module uses WS1850S, and the NFC module includes a WS1850S chip, an RF antenna, a matching circuit, a protection circuit, and an LED indicator.

[0061] As Figure 7 shown in the figure, the above key module includes 4 keys. One end of the above keys is grounded, and the other end is connected to the input / output pins (pins numbered 7, 8, 9, and 10) of the microprocessor. The 4 keys are S1, S2, S3, and S4 keys respectively.

[0062] As Figure 5 shown in the figure, the above fingerprint acquisition module includes 6 pins, and the fingerprint acquisition module uses AS608. The first pin and the sixth pin of the fingerprint acquisition module are used to connect to the output end of the power supply module. The fourth pin of the fingerprint acquisition module is used to ground. The second pin, the third pin, and the fifth pin of the fingerprint acquisition module are respectively connected to the input / output pins (pins numbered 34, 33, and 37) of the microprocessor. The first pin, the second pin, the third pin, the fourth pin, the fifth pin, and the sixth pin respectively correspond to Figure 5 the pins numbered 1, 2, 3, 4, 5, and 6 above.

[0063] As Figure 15 shown in the figure, the above WiFi module includes a WiFi chip, a voltage regulator, a seventh capacitor, an eighth capacitor, a ninth capacitor, and a 6-pin plug. The WiFi chip uses ESP8266, and the voltage regulator uses RT9193-33.

[0064] The transmission pin RXDO and the reception pin TXDO of the above-mentioned Wi-Fi chip are respectively connected to the fourth pin and the third pin of the 6-pin plug through the series-connected voltage-regulating diodes D1 and D2. The transmission pin RXDO and the reception pin TXDO of the above-mentioned Wi-Fi chip are also respectively connected to the input / output pins (the pins numbered 15 and 16) of the microprocessor; one end of the above-mentioned seventh capacitor C1-1U is connected to the input voltage pin VIN of the voltage regulator, and the other end is connected to the ground pin GND of the voltage regulator. The input voltage pin VIN and the ground pin GND of the above-mentioned voltage regulator are respectively connected to the first pin and the second pin of the 6-pin plug; one end of the above-mentioned eighth capacitor C2-0.1U is connected to the reference bypass pin BP of the voltage regulator, and the other end is grounded; the output pin VOUT of the above-mentioned voltage regulator is used to connect to the power supply module. The first pin, the second pin, the third pin, and the fourth pin are Figure 15 the pins numbered 1, 2, 3, and 4 of the above 6-pin plug H1.

[0065] The above are only the preferred embodiments of the present invention, and do not impose any limitations on the present invention. Any simple modifications, changes, and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A portable multi-information acquisition terminal for special operation certificates, characterized in that: It includes a microprocessor module, a touch screen input and display module, a data storage module, a power supply module, a voice broadcast module, a WiFi module, and a data acquisition module; The data acquisition module and the touch screen input and display module are used to acquire data associated with the work permit. The touch screen input and display module is also used to display data. The data storage module is used to store the acquired data. The microprocessor module is used to control the data acquisition module to acquire relevant data of the special operation permit. The voice broadcast module is used to broadcast the relevant data of the acquired special operation permit. The WiFi module is used to realize communication with other terminals. The power supply module is used to supply power to each module; The microprocessor module includes a microprocessor, a first reset circuit, and a first crystal oscillator circuit; the microprocessor includes a clock input pin, a clock output pin, and a reset pin; the first reset circuit includes a reset button, a first resistor, and a first capacitor; one end of the reset button is respectively connected to the reset pin and the power output terminal, the other end of the reset button is grounded, and the first resistor and the first capacitor are connected in series and then connected in parallel with the reset button; the first crystal oscillator circuit includes a first crystal oscillator, a second capacitor, and a third capacitor; one end of the first crystal oscillator is respectively connected to the clock input pin and one end of the second capacitor, the other end is respectively connected to the clock output pin and one end of the third capacitor, and the other ends of the second capacitor and the third capacitor are connected in parallel and then grounded; the microprocessor also includes a plurality of input / output pins for input or output of analog signals; The touch screen input and display module includes a touch sensor, a controller, a display screen, and a driving circuit; The controller transmits the touch signal of the touch sensor to the display screen through the driving circuit for display; The data storage module includes 8 pins. The first pin, the second pin, the third pin, the fourth pin, and the seventh pin of the data storage module are all grounded. The fifth pin and the sixth pin of the data storage module are respectively connected to the input / output pins of the microprocessor for data transmission. The eighth pin of the data storage module is connected to the output terminal of the power supply module; The voice broadcast module is connected to the microprocessor through an 8-pin plug for converting text data into voice data; The data acquisition module includes a camera module, a voice input module, an NFC module, a button module, and a fingerprint acquisition module; The camera module is respectively connected to the microprocessor and the power supply module; the voice input module is used to convert voice data into text data, and the voice input module is connected to the microprocessor; the NFC module is connected to the microprocessor for reading data in other IC cards; the button module includes 4 buttons, one end of the button is grounded, and the other end is connected to the input / output pins of the microprocessor; the fingerprint acquisition module includes 6 pins. The first pin and the sixth pin of the fingerprint acquisition module are used to be connected to the output terminal of the power supply module. The fourth pin of the fingerprint acquisition module is used to be grounded. The second pin, the third pin, and the fifth pin of the fingerprint acquisition module are respectively connected to the input / output pins of the microprocessor.

2. The multi-information acquisition terminal for portable special operation certificates according to claim 1, characterized in that: The touch sensor includes a measurement circuit and a touch button. The measurement circuit is electrically connected to the touch button. The measurement circuit is used to detect the potential change of the touch button to determine whether a touch is sent.

3. The multi-information acquisition terminal for portable special operation certificates according to claim 2, characterized in that: The touch sensor further includes a second resistor and a first triode; the collector of the first triode is connected to the measurement circuit in series with the second resistor, the base of the first triode is connected to the touch button, and the emitter of the first triode is grounded.

4. A portable multi-information collection terminal for special operation certificates according to claim 2, characterized in that: The measurement circuit uses a dual voltage comparator integrated circuit.

5. A portable multi-information collection terminal for special operation certificates according to claim 1, characterized in that: The voice broadcast module includes a voice chip, an inverter circuit, a second reset circuit, and a second crystal oscillator circuit; The inverter circuit includes a third resistor, a fourth resistor, a fifth resistor, and a second triode. The collector of the second triode is connected to the data receiving pin of the voice chip through the third resistor and to the power pin of the 8-pin plug through the fourth resistor. The base of the second triode is connected to the positive receive signal pin of the 8-pin plug through the third resistor, and the emitter of the second triode is grounded; The second reset circuit includes a reset switch, a sixth resistor, and a fourth capacitor. One end of the reset switch and the fourth capacitor are both connected to the reset pin of the 8-pin plug, and the other end is grounded. One end of the sixth resistor is connected to the reset pin of the 8-pin plug, and the other end is connected to the power pin of the 8-pin plug; The second crystal oscillator circuit includes a second crystal oscillator, a fifth capacitor, and a sixth capacitor. One end of the second crystal oscillator is respectively connected to the clock input pin of the voice chip and one end of the fifth capacitor. The other end of the second crystal oscillator is respectively connected to the clock output pin of the voice chip and one end of the sixth capacitor. The other ends of the fifth capacitor and the sixth capacitor are both grounded.

6. A portable multi-information collection terminal for special operation certificates according to claim 1, characterized in that: The WiFi module includes a WiFi chip, a voltage regulator, a seventh capacitor, an eighth capacitor, a ninth capacitor, and a 6-pin plug. The transmit pin and receive pin of the WiFi chip are respectively connected to the fourth pin and the third pin of the 6-pin plug through series-connected zener diodes. The transmit pin and receive pin of the WiFi chip are also respectively connected to the input / output pins of the microprocessor; One end of the seventh capacitor is connected to the input voltage pin of the voltage regulator, and the other end is connected to the ground pin of the voltage regulator. The input voltage pin and the ground pin of the voltage regulator are respectively connected to the first pin and the second pin of the 6-pin plug; One end of the eighth capacitor is connected to the reference bypass pin of the voltage regulator, and the other end is grounded; The output pin of the voltage regulator is used to connect to the power module.

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