CN217904548U

CN217904548U - Test tool

Info

Publication number: CN217904548U
Application number: CN202221209202.3U
Authority: CN
Inventors: 杨万营; 吴郭涛; 张迪; 赵学斌
Original assignee: Henan Xiangyu Medical Equipment Co Ltd
Current assignee: Henan Xiangyu Medical Equipment Co Ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-11-25
Anticipated expiration: 2032-05-18

Abstract

The utility model relates to a communication board test field discloses a test fixture, including power module and host system. The main control module comprises an MCU, a voltage conversion circuit and a level conversion circuit. Compared with the prior art, the testing efficiency is low due to the fact that manual testing is needed, and by the aid of the technical scheme, the main control module and the communication board to be tested are powered after the mains supply is converted into direct current by the power supply module. The output end of the voltage conversion circuit is connected with the level conversion circuit and the MCU, and the MCU is connected with the communication board to be tested through the level conversion circuit. The MCU is used for issuing a test instruction to the communication board to be tested, receiving test data returned by the communication board to be tested, judging whether the test is passed or not according to the prestored related data, and realizing the automatic test of the communication board to be tested.

Description

Test tool

Technical Field

The utility model relates to a communication board test field especially relates to a test fixture.

Background

In recent years, with the vigorous development of 4G and Internet of things technologies, the Internet of things technology is also applied to medical equipment, the medical 4G communication board is used as a bridge for data interaction between the medical equipment and a cloud server, the market demand is increased, and the quality control in the production process is also very important.

However, in the production process of the communication board, the communication board is usually tested manually, which requires technicians to have relevant professional knowledge, and the testing project is various and the operation process is complicated, so that when the production quantity is large, the technicians are easy to miss or operate by mistake, resulting in low testing efficiency.

Therefore, how to realize the automatic detection of the communication board and improve the testing efficiency is a problem to be urgently solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a test fixture for the realization improves efficiency of software testing to the automated inspection of communication board.

In order to solve the technical problem, the utility model provides a test fixture, include:

the power supply module and the main control module; the master control module comprises an MCU, a voltage conversion circuit and a level conversion circuit;

the power supply module is connected with the voltage conversion circuit, the communication board to be tested and the commercial power in the main control module and is used for converting the commercial power into direct current and then supplying power to the main control module and the communication board to be tested;

the output end of the voltage conversion circuit is connected with the level conversion circuit and the MCU;

the MCU is connected with the communication board to be tested through the level conversion circuit and is used for sending a test instruction to the communication board to be tested, receiving test data returned by the communication board to be tested and judging whether the test is passed or not according to the test data.

Preferably, the method further comprises the following steps: a human-computer interaction module;

the power supply module comprises a first output end and a second output end, and the first output end is connected with the voltage conversion circuit;

the man-machine interaction module is connected with the second output end of the power supply module and is connected to the MCU through the level conversion circuit.

Preferably, the method further comprises the following steps: an alarm indication module;

the alarm indication module is connected with the MCU and used for receiving a signal which is sent by the MCU and used for representing that the test is passed or not passed.

Preferably, the alarm indication module includes: the circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first indicator light, a second indicator light, a first triode and a second triode;

the first end of the first resistor is connected with the MCU and used for receiving a signal for passing a characterization test, the second end of the first resistor is connected with the base of the first triode, the emitting electrode of the first triode is grounded, the collecting electrode of the first triode is connected with the cathode of the first indicator lamp, the anode of the first indicator lamp is connected with the first end of the second resistor, the second end of the second resistor is connected with the output end of the voltage conversion circuit, the first end of the third resistor is connected with the MCU and used for receiving a signal for failing the characterization test, the second end of the third resistor is connected with the base of the second triode, the emitting electrode of the second triode is grounded, the collecting electrode of the second triode is connected with the cathode of the second indicator lamp, the anode of the second indicator lamp is connected with the first end of the fourth resistor, and the second end of the fourth resistor is connected with the output end of the voltage conversion circuit.

Preferably, the alarm indication module further comprises: a diode, a buzzer;

the anode of the diode and the first end of the buzzer are connected with the cathode of the second indicator light and the collector of the second triode, and the cathode of the diode and the second end of the buzzer are connected with the second end of the fourth resistor and the output end of the voltage conversion circuit.

Preferably, the power supply module includes:

the circuit comprises a switching power supply management module, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first voltage regulator tube and a second voltage regulator tube;

the first end of the first capacitor, the first end of the second capacitor and the cathode of the first voltage-regulator tube are connected to the first end of the switching power supply management module together and serve as the second output end of the power supply module, the second end of the first capacitor, the second end of the second capacitor and the anode of the first voltage-regulator tube are connected to the second end of the switching power supply management module together, the first end of the third capacitor, the first end of the fourth capacitor and the cathode of the second voltage-regulator tube are connected to the third end of the switching power supply management module together and serve as the first output end of the power supply module, the second end of the third capacitor, the second end of the fourth capacitor and the anode of the second voltage-regulator tube are connected to the fourth end of the switching power supply management module together, the fifth end of the switching power supply management module is connected to the anode of the commercial power, and the sixth end of the switching power supply management module is connected to the cathode of the commercial power.

Preferably, the power module further comprises: piezoresistors, fuses;

the first end of fuse is connected the positive pole of commercial power, the second end of fuse is connected piezo-resistor's first end with switching power supply management module's fifth end, piezo-resistor's second end is connected switching power supply management module's sixth end with the negative pole of commercial power.

Preferably, the second capacitor and the fourth capacitor are electrolytic capacitors.

Preferably, the method further comprises the following steps: a voltage detection module;

the voltage detection module is connected with the communication board to be detected and the main control module, and is used for detecting the working voltage of the communication board to be detected and sending the working voltage to the main control module, so that the main control module judges whether the test of the working voltage of the communication board to be detected passes or not.

The utility model provides a test fixture, including power module and host system. The main control module comprises an MCU, a voltage conversion circuit and a level conversion circuit. Compared with the prior art, the testing efficiency is low due to the fact that manual testing is needed, and by means of the technical scheme, the power supply module is used for converting commercial power into direct current and then supplying power to the main control module and the communication board to be tested. The output end of the voltage conversion circuit is connected with the level conversion circuit and the MCU, and the MCU is connected with the communication board to be tested through the level conversion circuit. The MCU is used for issuing a test instruction to the communication board to be tested, receiving test data returned by the communication board to be tested, judging whether the test is passed or not according to the prestored related data, and realizing the automatic test of the communication board to be tested.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without inventive work.

Fig. 1 is a structural diagram of a testing tool according to an embodiment of the present invention;

fig. 2 is a circuit diagram of a voltage converting circuit according to an embodiment of the present invention;

fig. 3 is a circuit diagram of an alarm indication module according to an embodiment of the present invention;

fig. 4 is a circuit diagram of a power module according to an embodiment of the present invention;

fig. 5 is an effect diagram of a testing tool according to an embodiment of the present invention;

the reference numbers are as follows: 1 is host system, 2 is the communication board that awaits measuring, 3 is power module, 4 is the interactive module of people, 5 is the high in the clouds server, 6 is alarm indication module, 7 is voltage detection module, 8 is serial ports touch-sensitive screen, 9 is the 4G antenna, 10 is first pilot lamp, 11 is the second pilot lamp, 12 is bee calling organ, 13 is the casing, 14 is power source, 15 is USART communication interface, 16 is the voltage sampling interface, 17 is the start/reset button, 18 is switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, the ordinary skilled in the art can obtain all other embodiments without creative work, which all belong to the protection scope of the present invention.

The core of the utility model is to provide a test fixture for the realization improves efficiency of software testing to the automated inspection of communication board.

In order to make the technical field better understand the solution of the present invention, the following detailed description is given with reference to the accompanying drawings and the detailed description.

Fig. 1 is the embodiment of the utility model provides a structure diagram of test fixture, as shown in fig. 1, this test fixture includes:

the power module 3 and the main control module 1; the master control module 1 comprises an MCU, a voltage conversion circuit and a level conversion circuit;

the power supply module 3 is connected with the voltage conversion circuit in the main control module 1, the communication board 2 to be tested and the commercial power, and is used for converting the commercial power into direct current and then supplying power to the main control module 1 and the communication board 2 to be tested;

the MCU is connected with the communication board 2 to be tested through the level conversion circuit and is used for sending a test instruction to the communication board 2 to be tested and receiving test data returned by the communication board 2 to be tested, and judging whether the test is passed or not according to the test data.

In this embodiment, the power module 3 is connected to the utility power, and is used for supplying power to the test fixture after rectifying, filtering and voltage-reducing the utility power, and can convert 220V alternating current into required direct current according to the voltage required by each module and each circuit in the test fixture. In specific implementation, a switching power supply chip can be used, and a transformer and the like can also be used.

The main control module 1 in this embodiment is configured to implement data processing and analysis and control a test flow. In specific implementation, a test related program is written in the main control module 1 and the communication board 2 to be tested in advance, after the test is started, the main control module 1 issues a test instruction to the communication board 2 to be tested, the communication board 2 to be tested executes the internal test program and returns corresponding test data to the main control module 1, and the main control module 1 judges whether the test is qualified according to the test data. In order to realize comprehensive detection on the communication board 2 to be detected, the test type of the communication board 2 to be detected may be various, and in this embodiment, the test instruction includes a Flash read-write test, a signal strength test, an SIM card test, a network registration state test, and a data transmission test. The Flash read-write test is that the main control module 1 sends a Flash read-write test instruction to the communication board 2 to be tested through the USART communication interface 15, wherein the instruction frame comprises write-in FLASH data, the communication board 2 to be tested returns the Flash read-write data to the main control module 1, and the main control module 1 judges whether the read-write Flash test passes or not. Similarly, the signal strength test, the SIM card test, and the network registration status test are performed by the main control module 1 sending a relevant instruction to the communication board 2 to be tested through the USART communication interface 15, and then the communication board 2 to be tested returns relevant test data, and the main control module 1 determines whether the corresponding test is passed. For the difference of the data transmission test, the communication board 2 to be tested is connected with the cloud server 5 through the 4G antenna 9. After the main control module 1 sends a data transmission test instruction to the communication board 2 to be tested through the USART communication interface 15, the instruction frame contains data required for testing, the communication board 2 to be tested sends the data to the cloud server 5, the cloud server 5 receives the data and then returns the data to the main control module 1 through the communication board 2 to be tested, and therefore the main control module 1 can judge whether the data transmission of the communication board 2 to be tested is normal or not and judge whether the data transmission test passes or not.

During testing, sometimes it is necessary to perform a comprehensive test on the communication board 2 to be tested, and sometimes it is only necessary to test a certain function of the communication board 2 to be tested. Therefore, in the specific implementation, the test tool may be equipped with the human-computer interaction module 4, and a technician may set the test type of the communication board 2 to be tested through the human-computer interaction module 4, for example, the test type may be a full test or a single test on the communication board 2 to be tested. Meanwhile, the test result judged by the main control module 1 to pass or fail can also be displayed to the technician through the human-computer interaction module 4.

In the specific implementation, the power module 3 needs to supply power to each module in the test fixture and the communication board 2 to be tested, and the voltages required by each module are different, so the main control module 1 in this embodiment has a voltage conversion circuit, which converts the output voltage of the power module 3 into the voltage required by the MCU and the peripheral circuits, such as the level conversion circuit. In this embodiment, the MCU adopts STM32F103C8T6 chip, the level shift circuit uses MAX3232 chip, the USART2 interface of the MCU performs level shift through the MAX3232 chip and communicates with the communication board 2 to be tested, and the USART3 interface can perform level shift through the MAX3232 chip and then communicates with the touch screen. Fig. 2 is a circuit diagram of a voltage converting circuit provided by an embodiment of the present invention, as shown in fig. 2, in this circuit, voltage conversion is realized through LM1117-3.3 chip, and two filter capacitors C and a divider resistor R are provided, and a light emitting diode D1 for displaying whether the circuit is normally turned on is provided.

The embodiment of the utility model provides a test fixture, including power module and host system. The main control module comprises an MCU, a voltage conversion circuit and a level conversion circuit. Compared with the prior art, the testing efficiency is low due to the fact that manual testing is needed, and by the aid of the technical scheme, the main control module and the communication board to be tested are powered after the mains supply is converted into direct current by the power supply module. The output end of the voltage conversion circuit is connected with the level conversion circuit and the MCU, and the MCU is connected with the communication board to be tested through the level conversion circuit. The MCU is used for issuing a test instruction to the communication board to be tested, receiving test data returned by the communication board to be tested, and judging whether the test is passed or not according to the prestored related data, so that the automatic test of the communication board to be tested is realized.

On the basis of the above embodiment, in this embodiment, the test fixture further includes: a human-computer interaction module 4;

the power supply module 3 comprises a first output end and a second output end, and the first output end is connected with the voltage conversion circuit;

the human-computer interaction module 4 is connected with the second output end of the power supply module 3 and is connected to the MCU through a level conversion circuit.

In the above embodiment, the power module 3 needs to supply power to the main control module 1 and the communication board 2 to be tested, and in this embodiment, the power module 3 also needs to supply power to the human-computer interaction module 4. In this embodiment, the human-computer interaction module 4 is a serial port touch screen 8, and a USART interface of the serial port touch screen 8 is physically connected with the main control module 1 through a connection line. The first output end of the power module 3 outputs 5V voltage to supply power for the main control module 1 and the communication board 2 to be tested, and the second output end outputs 12V voltage to supply power for the serial port touch screen 8. The technician realizes the selection of the test type by controlling the serial port touch screen 8 and obtains the test result. When the test types are all tests, the serial port touch screen 8 can display the test result immediately after each test is completed, and can also display the test result integrally after all tests are completed. It can be understood that the communication board 2 to be tested needs to flow into the market, so that when any one test fails, the whole test result of the communication board 2 to be tested is the test failure, and when the test fails, specific test failure items can be displayed on the touch screen. In addition, a dynamic picture of the test progress can be displayed on the serial port touch screen 8 to remind technicians of the test progress.

In the embodiment, by adding the human-computer interaction module, a technician can set a test item as required and can obtain a test result, so that the test intelligence is improved.

In a specific implementation, when the communication board 2 to be tested has many test items, a technician may leave midway or does not pay attention to the touch screen continuously, and at this time, the technician cannot find that the test of the communication board 2 to be tested does not pass in time.

Therefore, on the basis of the above embodiment, in this embodiment, the method further includes: an alarm indication module 6;

the alarm indication module 6 is connected with the MCU and used for receiving a signal which is sent by the MCU and used for representing that the test is passed or the test is not passed.

In this embodiment, after the MCU receives the test data returned from the communication board 2 to be tested and determines the test data, the signal indicating that the test is passed or failed is sent to the alarm indication module 6, and the alarm indication module 6 can inform the technician of the test result in a more intuitive and striking manner. In this embodiment, the signal sent by the MCU when the test is passed may be sent immediately when a certain test is passed, or may be sent when all tests are passed. If it is sent when a certain test passes, the notification time of the alarm indication module 6 should be short in order not to affect the tests of other items that follow. Conversely, if it is sent when all tests have passed, the notification by the alarm indication module 6 may be continued so that the technician can timely view and know that the test has ended. Of course, in other embodiments, the technician may be notified only when the test fails, and the alarm indication module 6 may continue to act when the test fails, so that the technician may know in time. In specific implementation, in order to ensure the noticing and timeliness of the prompt, the alarm indication module 6 may adopt the forms of an indicator light, a buzzer and the like.

In the embodiment, by adding the alarm indicating module, a technician can timely know the test result or the test process without holding the touch screen.

Fig. 3 is a circuit diagram of an alarm indication module according to an embodiment of the present invention, as shown in fig. 3, the module includes: the circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first indicator light 10, a second indicator light 11, a first triode Q1 and a second triode Q2;

the first end of the first resistor R1 is connected with the MCU and used for receiving a signal for representing the passing of a test, the second end of the first resistor R1 is connected with the base of the first triode Q1, the emitting electrode of the first triode Q1 is grounded, the collecting electrode of the first triode Q1 is connected with the cathode of the first indicator light 10, the anode of the first indicator light 10 is connected with the first end of the second resistor R2, the second end of the second resistor R2 is connected with the output end of the voltage conversion circuit, the first end of the third resistor R3 is connected with the MCU and used for receiving a signal for representing the failing of the test, the second end of the third resistor R3 is connected with the base of the second triode Q2, the emitting electrode of the second triode Q2 is grounded, the collecting electrode of the second triode Q2 is connected with the cathode of the second indicator light 11, the anode of the second indicator light 11 is connected with the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is connected with the output end of the voltage conversion circuit.

In this embodiment, the first indicator light 10 and the second indicator light 11 are used as the indicating means, and a triode is used as the switching device, but of course, a switching device such as a MOS transistor may be used instead in other embodiments. When the test is passed, the MCU outputs a high level to turn on the first triode Q1 to illuminate the first indicator light 10, and when the test is failed, the MCU outputs a high level to turn on the second triode Q2 to illuminate the second indicator light 11. According to the conventional scheme, the first indicator light 10 is green, and the second indicator light 11 is red, so that a technician can know the test result of the communication board 2 to be tested according to the lighting condition of the indicator lights.

This embodiment is through the pilot lamp that lights the correspondence when the communication board test that awaits measuring passes or fails to make the test result that the communication board that awaits measuring can be known to the lighting condition according to the pilot lamp by the technical staff.

As shown in fig. 3, on the basis of the above embodiment, in this embodiment, the alarm indication module 6 further includes: a diode D2, a buzzer 12;

the anode of the diode D2 and the first end of the buzzer 12 are connected to the cathode of the second indicator light 11 and the collector of the second triode Q2, and the cathode of the diode D2 and the second end of the buzzer 12 are connected to the second end of the fourth resistor R4 and the output end of the voltage conversion circuit.

In this embodiment, when the test of the communication board to be tested fails, a more striking notification manner is achieved by the buzzer. And because the buzzer is an inductive device, in order to avoid damage to the voltage conversion circuit caused by backflow, the circuit is protected by utilizing the one-way conductivity of the diode.

Introduced power module 3 in above-mentioned embodiment and need be for host system 1, the communication board 2 that awaits measuring and the power supply of human-computer interaction module 4, and this embodiment provides a concrete power module 3, and fig. 4 does the utility model discloses a power module's circuit diagram that provides, as shown in fig. 4, this module includes:

the circuit comprises a switching power supply management module, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a first voltage regulator tube D3 and a second voltage regulator tube D4;

the first end of the first capacitor C1, the first end of the second capacitor C2 and the cathode of the first voltage regulator tube D3 are commonly connected to the first end of the switching power supply management module and serve as the second output end of the power supply module 3, the second end of the first capacitor C1, the second end of the second capacitor C2 and the anode of the first voltage regulator tube D3 are commonly connected to the second end of the switching power supply management module, the first end of the third capacitor C3, the first end of the fourth capacitor C4 and the cathode of the second voltage regulator tube D4 are commonly connected to the third end of the switching power supply management module and serve as the first output end of the power supply module 3, the second end of the third capacitor C3, the second end of the fourth capacitor C4 and the anode of the second voltage regulator tube D4 are commonly connected to the fourth end of the switching power supply management module, the fifth end of the switching power supply management module is connected to the anode of the commercial power, and the sixth end of the switching power supply management module is connected to the cathode of the commercial power supply.

In this embodiment, the switching power supply management module selects an AC-DC chip L030-10D0512-15, and after being stabilized by four capacitive filters and two voltage-stabilizing tubes, a first output end outputs 5V voltage to supply power to the main control module and the communication board to be tested, and a second output end outputs 12V voltage to supply power to the serial touch screen.

In the above embodiment, the switching power supply management module is directly connected to the commercial power, and on the basis of the above embodiment, in order to avoid the situations such as overcurrent and overvoltage from damaging the switching power supply management module, the power supply module 3 further includes in this embodiment: a varistor MOV1, a fuse F1;

the first end of the fuse F1 is connected with the positive pole of the mains supply, the second end of the fuse F1 is connected with the first end of the voltage dependent resistor MOV1 and the fifth end of the switch power supply management module, and the second end of the voltage dependent resistor MOV1 is connected with the sixth end of the switch power supply management module and the negative pole of the mains supply.

The embodiment can cut off the connection between the switch power supply management module and the mains supply in time under overcurrent or overvoltage by adding the piezoresistor and the fuse, thereby avoiding the damage of the switch power supply management module and the test tool.

It is understood that the electrolytic capacitor has a larger capacity, and in order to pursue a better filtering effect, the second capacitor C2 and the fourth capacitor C4 are electrolytic capacitors in the present embodiment.

In the above embodiment, a plurality of test items of the communication board 2 to be tested are introduced, and in this embodiment, the method further includes: a voltage detection module 7;

the voltage detection module 7 is connected to the communication board 2 to be detected and the main control module 1, and is used for detecting the working voltage of the communication board 2 to be detected and sending the working voltage to the main control module 1, so that the main control module 1 judges whether the test of the working voltage of the communication board 2 to be detected passes or not.

The voltage detection module in this embodiment is connected with the communication board that awaits measuring through resistance partial pressure sampling, realizes the detection to the operating voltage of the communication edition that awaits measuring, and in concrete implementation, the operating voltage of the communication edition that awaits measuring may be 5V, 3.8V, 3.3V, and voltage value transmission to host system that voltage detection module will gather, MCU among the host system compares the collection value with the standard value of prestoring, realizes the test to the communication board voltage that awaits measuring.

Fig. 5 is an effect diagram of a testing tool provided by an embodiment of the present invention, as shown in fig. 5, the testing tool further includes a casing 13, a power interface 14 for connecting the power module 3 and other modules, a start/reset button 17 for starting a test or stopping after the second indicator light 11 is turned on and the buzzer buzzes, and a power switch 18 of the whole testing tool, besides the structure mentioned in the above embodiment.

Before the test, the technical personnel fix the communication board 2 to be tested on the copper column of the casing 13 through the mounting hole, connect the power interface 14 of the power module 3 with the power interface 14 of the communication board 2 to be tested, connect the USART communication interface 15 of the communication board 2 to be tested with the main control module 1, and connect the voltage detection module 7 with the voltage sampling interface 16. Preferably, each interface has the wrong-insertion-preventing function so as to protect the test tool. A technician selects a corresponding test type through a touch screen, the automatic test of the communication board 2 to be tested can be realized by pressing the start/reset key 17, the first indicator light 10 is lightened when the test is passed, the second indicator light 11 is lightened and the buzzer 12 sounds for a long time when the test is not passed, and the technician can press the start/reset key 17 again to stop alarming after finding. Therefore, the automatic test of the communication board 2 to be tested can be realized through the test tool.

It is right above the utility model provides a test fixture has carried out detailed introduction. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

It should also be noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a test fixture which characterized in that includes:

2. The test tool of claim 1, further comprising: a human-computer interaction module;

3. The test tool of claim 2, further comprising: an alarm indication module;

the alarm indication module is connected with the MCU and used for receiving a signal which is sent by the MCU and used for representing that the test is passed or the test is not passed.

4. The test tool of claim 3, wherein the alarm indication module comprises: the circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first indicator light, a second indicator light, a first triode and a second triode;

5. The test tool of claim 4, wherein the alarm indication module further comprises: a diode, a buzzer;

6. The test tool of claim 2, wherein the power module comprises:

the first end of the first capacitor, the first end of the second capacitor and the cathode of the first voltage regulator tube are connected with the first end of the switching power supply management module together and used as the second output end of the power supply module, the second end of the first capacitor, the second end of the second capacitor and the anode of the first voltage regulator tube are connected with the second end of the switching power supply management module together, the first end of the third capacitor, the first end of the fourth capacitor and the cathode of the second voltage regulator tube are connected with the third end of the switching power supply management module together and used as the first output end of the power supply module, the second end of the third capacitor, the second end of the fourth capacitor and the anode of the second voltage regulator tube are connected with the fourth end of the switching power supply management module together, the fifth end of the switching power supply management module is connected with the anode of the commercial power, and the sixth end of the switching power supply management module is connected with the cathode of the commercial power.

7. The test tool of claim 6, wherein the power module further comprises: piezoresistors, fuses;

the first end of fuse is connected the positive pole of commercial power, the second end of fuse is connected the first end of piezo-resistor with switching power supply management module's fifth end, piezo-resistor's second end is connected switching power supply management module's sixth end with the negative pole of commercial power.

8. The test tool of claim 7, wherein the second capacitor and the fourth capacitor are electrolytic capacitors.

9. The test tool of claim 1, further comprising: a voltage detection module;

the voltage detection module is connected with the communication board to be detected and the master control module, and is used for detecting the working voltage of the communication board to be detected and sending the working voltage to the master control module, so that the master control module judges whether the test of the working voltage of the communication board to be detected passes or not.