CN208705424U - A kind of wire rod sequence detection device - Google Patents

Abstract

The utility model relates to a wire sequence detection device, comprising a body, a wire terminal jack, a test pen jack and a power switch. The surface of the body is further provided with a digital tube and an LED light, and the side of the body is provided with a speaker and a charging interface, the body is provided with a circuit board, and the circuit board is provided with a microprocessor, a display module, a storage module, a voice broadcast module and a power supply module; the microprocessor includes a first serial port, a second A serial port and a memory control end, the input end of the display module is connected with the first serial port, the output end of the display module is connected with the digital tube; the input end of the storage module is connected with the memory control end , the output end of the voice broadcast module is connected to the speaker, and the input end of the voice broadcast module is connected to the second serial port. The utility model can effectively solve the problems in the prior art that the detection method is cumbersome, time-consuming and difficult to find the corresponding line when the internal resistance of the line is too large.

Description

A wire sequence detection device

technical field

The utility model relates to the field of wire sequence measuring instruments, in particular to a wire sequence detecting device with a voice function.

Background technique

In the assembly fields of automobiles, electric vehicles, and factory machines, when it comes to wire access, the current common detection methods are as follows: connect one test lead of the multimeter to one of the wires at one end of the wire, and connect the other test lead of the multimeter to the wire. Try touching the wires on the other end one by one, and find the corresponding wires by observing whether the number of the multi-function indicator changes to determine whether the wires are connected or not, and then use this method to find all wires in turn. This detection method is cumbersome and time-consuming, and the assembly efficiency of the staff is low, and it is often difficult to find the corresponding line when the internal resistance of the line is too large, which causes great difficulties to the assembly work. Therefore, there is an urgent need to design a new technical solution to comprehensively solve the problems existing in the prior art.

Utility model content

The purpose of the utility model is to provide a wire sequence detection device, which is simple in principle and easy to manufacture, and can effectively solve the problems of cumbersome detection methods in the prior art, long time consumption and difficulty in finding corresponding lines when the internal resistance of the lines is too large.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A wire sequence detection device includes a body, a wire terminal jack, a test pen jack and a power switch, the surface of the body is also provided with a digital tube and an LED light, and the side of the body is provided with a speaker and a charging interface, The body is provided with a circuit board, and the circuit board is provided with a microprocessor, a display module, a storage module, a voice broadcast module and a power supply module; the microprocessor includes a first serial port, a second serial port and a memory control The input end of the display module is connected to the first serial port, the output end of the display module is connected to the digital tube; the input end of the storage module is connected to the memory control end, the voice The output end of the broadcasting module is connected with the speaker, the input end of the voice broadcasting module is connected with the second serial port, the input end of the power supply module is connected with the charging interface, and the output end of the power supply module is connected with the circuit board Connect to each module to supply power.

In a further solution, the power supply module includes a voltage converter, a power supply battery and a power management chip.

A further solution is that the power supply battery is a lithium battery.

In a further solution, the wire terminal jack is connected to the microprocessor through a pin header, and the wire terminal jack and the pin header are connected by a wire.

The wire sequence detection device provided in the above technical solution is based on the STM32 microprocessor and has a fast running speed. It can be output by connecting the digital tube display and voice broadcast, so that the staff can quickly and accurately identify it; and it uses a rechargeable lithium battery for power supply. Yes, use the battery management chip to charge and detect the power to ensure that the line sequencer can perform sequencing stably and normally. The intelligent line sequence measuring instrument of the utility model can shorten the number of times to be detected, shorten the detection time and improve the detection efficiency.

Description of drawings

Fig. 1 is the principle structure diagram of the wire sequence detection device of the utility model;

Fig. 2 is the circuit schematic diagram of described microprocessor;

3 is a schematic diagram of the resistance between the microprocessor and the pin header;

Figure 4 is a schematic diagram of the pin header;

Figure 5 is a schematic diagram of the pin header pull-up resistor;

Fig. 6 is the schematic diagram of the voice broadcast module;

7 is a schematic diagram of the power management chip;

Fig. 8 is a circuit diagram of level conversion.

In the picture: 1. Microprocessor; 2. Charging interface; 3. Power management chip; 4. Power supply battery; 5. Voltage converter; 6. Speaker; 7. Digital tube; 8. Pin header; 9. Wire terminal Jack; 10. Power supply module.

Detailed ways

In order to make the purpose and advantages of the present utility model more clear, the present utility model will be described in detail below with reference to the embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the protection scope of the specific claims of the present invention.

The technical scheme adopted by the present utility model is shown in Figures 1-8, a wire sequence detection device, including a body, a wire terminal jack 9, a test pen jack and a power switch, the surface of the body is also provided with a digital tube 7 and LED lights, the side of the body is provided with a speaker 6 and a charging interface 2, a circuit board is provided in the body, and the circuit board is provided with a microprocessor 1, a display module, a storage module, and a voice broadcast module. and a power supply module 10; the microprocessor 1 includes a first serial port, a second serial port and a memory control terminal, the input terminal of the display module is connected to the first serial port, and the output terminal of the display module is connected to the digital tube 7 is connected; the input end of the storage module is connected with the memory control end, the output end of the voice broadcast module is connected with the speaker 6, and the input end of the voice broadcast module is connected with the second serial port , Figure 6 is a schematic diagram of the voice broadcast module, connected according to the connection method shown in Figure 6; the input end of the power supply module is connected to the charging interface 2, and the output end of the power supply module 10 is connected to the circuit board as Each module is powered; the voice broadcast module adopts JQ6500 chip, which is an MP3 chip that provides a serial port, and integrates the hard decoding of MP3 and WMV. The specific model of the microprocessor in this embodiment is STM32F103VC, and the pins of the microprocessor are connected in the manner shown in Figure 2 and Figure 3, wherein the resistor plays a protective role to prevent damage to each chip due to excessive current.

Specifically, the power supply module 10 includes a voltage converter 5, a power supply battery 4 and a power management chip 3; the power supply battery 4 uses a lithium battery, and is electrically connected to the microprocessor 1 through the level conversion circuit shown in FIG. Provide a stable voltage of 3.3V for the microprocessor. The charging interface can not only charge the lithium battery through the FM3209 power management chip shown in Figure 7, but also have the functions of protecting the lithium battery, DC-DC boost current limiting and power display.

The wire terminal jack 9 is connected to the microprocessor 1 through the pin header 8, and the wire terminal jack 9 and the pin header 8 are connected by wires; the pin header in Fig. 4 is a 2.54MM general-purpose pin header It can provide detection for ports of up to 50 lines at the same time, and can also be connected with different terminal blocks through adapter cables to increase usage scenarios.

As shown in Figure 5, it is the schematic diagram of the pull-up resistor of the pin header. During the test process, when the test lead is not in contact with the wire, the pull-up resistor will pull the microprocessor pin up to 3.3V, which can effectively prevent interference. Avoid false positives during testing.

The use method of the wire sequence detection device of the present invention is as follows: insert the test lead and the wire with one end of which has been connected to the terminal into the instrument, try to touch one of the test lead and the other end of the wire, at this time, the digital tube will display the current and test leads. The serial number of the contacted line, and the voice broadcast module broadcasts the serial number of this line, and then repeat this step to find the serial number of all the wires. During this process, if the wire with the same serial number appears twice, it is judged as a wire short circuit. This function effectively avoids the short circuit of the terminals caused by human factors.

The embodiments of the present utility model are described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments. Under the premise of the principle of the present invention, several equivalent changes and substitutions can also be made, and these equivalent changes and substitutions should also be regarded as belonging to the protection scope of the present invention.

Claims (5)

1. A wire sequence detection device, comprising a fuselage, a wire terminal jack, a test pen jack and a power switch, the surface of the fuselage is also provided with a digital tube and an LED lamp, it is characterized in that: the side of the fuselage is provided with There are speakers and a charging interface, a circuit board is arranged in the body, and a microprocessor, a display module, a storage module, a voice broadcast module and a power supply module are arranged on the circuit board; the microprocessor includes a first serial port, The second serial port and the memory control terminal, the input terminal of the display module is connected to the first serial port, the output terminal of the display module is connected to the digital tube; the input terminal of the storage module is connected to the memory control terminal connected, the output end of the voice broadcast module is connected to the speaker, the input end of the voice broadcast module is connected to the second serial port, the input end of the power supply module is connected to the charging interface, and the power supply module is connected to the charging interface. The output terminal of the circuit board is connected to the power supply for each module. 2 . The wire sequence detection device according to claim 1 , wherein the power supply module comprises a voltage converter, a power supply battery and a power management chip. 3 . 3 . The wire sequence detection device according to claim 2 , wherein the power supply battery is a lithium battery. 4 . 4 . The wire sequence detection device according to claim 1 , wherein the wire terminal jack is connected to the microprocessor through a pin header, and the wire terminal jack and the pin header are connected by a wire. 5 . . 5 . The wire sequence detection device according to claim 1 , wherein the microprocessor is an STM32 chip. 6 .