阅读说明：本技术 电子装备使用记录系统及其使用方法 (Electronic equipment use recording system and use method thereof ) 是由 郭宝锋 李召瑞 崔佩璋 李晓辉 陶杰 王文娟 王欣 曾慧燕 于 2020-11-27 设计创作，主要内容包括：本发明公开了一种电子装备使用记录系统及其使用方法,包括电流传感器模块,所述电流传感器模块的信号输出端与数据采集模块的信号输入端连接；所述数据采集模块的信号的信号输出端与数据传输模块的信号输入端连接；所述数据传输模块的信号输出端与数据处理模块的信号输入端连接；所述数据处理模块的信号输出端与状态显示模块的信号输入端连接,所述数据处理模块用于对传送来的数据进行处理；供电模块与所述记录系统中需要供电的模块的电源输入端连接,用于为其提供工作电源。所述系统无需破坏被测量电子装备的结构,电路设计简单,数据处理速度快。(The invention discloses a usage recording system of electronic equipment and a usage method thereof, wherein the usage recording system comprises a current sensor module, a data acquisition module and a data processing module, wherein the signal output end of the current sensor module is connected with the signal input end of the data acquisition module; the signal output end of the signal of the data acquisition module is connected with the signal input end of the data transmission module; the signal output end of the data transmission module is connected with the signal input end of the data processing module; the signal output end of the data processing module is connected with the signal input end of the state display module, and the data processing module is used for processing transmitted data; and the power supply module is connected with a power supply input end of a module needing power supply in the recording system and is used for providing a working power supply for the module. The system does not need to damage the structure of the measured electronic equipment, and has simple circuit design and high data processing speed.)

1. An electronic equipment usage recording system, characterized by: the current sensor module is used for collecting direct current information of a main node of the electronic equipment; the signal output end of the signal of the data acquisition module is connected with the signal input end of the data transmission module, and the data acquisition module is used for converting the voltage analog signal acquired by the current sensor module into a voltage digital signal; the signal output end of the data transmission module is connected with the signal input end of the data processing module, and the data transmission module is used for transmitting the digital signal obtained by the data acquisition module to the data processing module for processing; the signal output end of the data processing module is connected with the signal input end of the state display module, the data processing module is used for processing transmitted data, and the state display module is used for judging the waveform characteristics of the monitored data, judging the working state of the sub-equipment and displaying the working state of the sub-equipment in real time; and the power supply module is connected with a power supply input end of a module needing power supply in the recording system and is used for providing a working power supply for the module.

2. The electronic equipment usage recording system of claim 1, wherein: the power supply module comprises an LM1117-5.0 type chip and an LM1117-3.3 chip, wherein the LM1117-5.0 provides +5V power supply voltage for the system, the LM1117-3.3 provides +3.3V power supply voltage for the system, and the input voltage of the two chips is greater than 6.5V and smaller than 12V.

3. The electronic equipment usage recording system of claim 1, wherein: the current sensor uses a HCS-LSP3 series closed-loop hall current sensor.

4. The electronic equipment usage recording system of claim 1, wherein: the data acquisition module comprises an MC9S12XS128MAA type single chip microcomputer, AD conversion of output signals of the current sensor is completed through an ATD module in the single chip microcomputer, after conversion is completed, the output data are 8/10/12 bit parallel data, then the data are transmitted to an SCI module, the parallel data are sequentially transmitted one bit by one bit, and when a circuit is designed, a pin 51 of the single chip microcomputer is an input pin of the ATD conversion and is connected with an output pin of the current sensor; the 64 pins of the single chip microcomputer are SCI serial output pins and are connected with the input end of RS 232.

5. The electronic equipment usage recording system of claim 1, wherein: the related process of the software running in the single chip microcomputer is as follows:

1) initializing the ATD module: a register ATD0CTL1 is mainly set, so that the resolution of AD sampling selects 12 bits; setting register ATD0CTL4 to make data sampling time be 4 clock cycles;

2) initializing the SCI module: a register SCI0BD is mainly set to enable the data serial transmission baud rate to be 56000; setting a register SCI0CR1, and carrying out serial data transmission without parity check;

3) checking an ATD status register ATD0STAT2_ CCF0, checking whether conversion is completed or not, if so, setting the value to be 1, respectively storing the high 8 bits and the low 8 bits of the data obtained by conversion in AD _ result _ H and AD _ result _ L variables, and turning to the step 4); if the conversion is not completed, entering a waiting state;

4) checking the SCI status register SCI0SR1_ TDRE to see whether the sending data register is empty, if so, assigning a variable AD _ result _ H to the data register SCI0DRL, and turning to the step 5); if SCI0SR1_ TDRE is not empty, it indicates that SCI data register can not receive new data, and enters into waiting state;

5) checking the SCI status register SCI0SR1_ TDRE to see whether the sending data register is empty, if so, assigning a variable AD _ result _ L to the data register SCI0DRL, and turning to step 6); if SCI0SR1_ TDRE is not empty, it indicates that SCI data register can not receive new data, and enters into waiting state;

6) whether the data acquisition is finished or not, if not, turning to the step 3) to perform new data sampling and transmission; if so, the routine is terminated.

6. The electronic equipment usage recording system of claim 1, wherein: the data transmission module uses RS232, RS422 or RS485 serial interface modules.

7. The electronic equipment usage recording system of claim 1, wherein: the electronic equipment use management platform runs in the data processing module, the management platform comprises a serial port setting module, a serial port receiving data display module, a current display module and an equipment use statistical table module, and the serial port setting module is used for setting serial port communication parameters of the data acquisition board; the serial port receiving data display module is used for displaying data received by the serial port and completely eliminating the data in the receiving area; the current display module is used for drawing the acquired current waveform; the device usage statistical table module is used for counting the starting time, the shutdown time and the running time of each sub-device of the electronic equipment.

8. Use of an electronic equipment usage recording system according to any of the claims 1-7, characterized by the steps of:

1) placing a current sensor at a main power supply node of the tested electronic equipment for collecting a main power supply of the tested electronic equipment;

2) connecting the current sensor with the data acquisition module, and connecting the serial port of the data acquisition module with the serial port of the data processing module;

3) operating an electronic equipment use management platform in the data processing module;

4) the current sensor module and the data acquisition module are powered on to operate, and the current state data of the electronic equipment is acquired in real time;

5) setting parameters by using a pull-down menu of a management platform through electronic equipment;

6) a serial port opening button is hit by a middle point of the electronic equipment using management platform, current data collected by the system starts to be displayed above an empty receiving area in a rolling mode, and the current data is displayed above a current parameter display area in a graphic mode;

7) the method comprises the steps of opening or closing a sub-device 1, a sub-device 2, a sub-device 3 and a sub-device 4 of the electronic equipment, displaying current change above current parameter display, comparing data with an original database by using a management platform of the electronic equipment, judging which device is started or shut down through mode identification, accordingly giving use records and management of each device of the electronic equipment, and displaying the use records and management in a device use statistical table.

9. The method of using an electronic equipment usage recording system of claim 8, wherein: the electronic equipment is developed using MATLAB software using a management platform.

10. The method of using an electronic equipment usage recording system of claim 8, wherein: the parameter setting comprises a serial port, a baud rate, a check bit, a data bit and a stop bit.

Technical Field

The invention relates to the technical field of equipment testing systems and methods, in particular to a system and a method for recording the use of electronic equipment.

Background

The electronic equipment is complex in structure and comprises various types of equipment, at present, the use management of the equipment is mainly based on manual recording, the problems of incomplete and real recording, large subjective factors, much omission and the like exist, and effective data support is difficult to provide for the maintenance and guarantee of the equipment. Therefore, it is necessary to research the electronic equipment use management technology to improve the timely understanding of the operation state and performance of the equipment.

At present, the state monitoring of complex electronic equipment is mostly completed by additionally arranging an electronic signal acquisition device in the equipment, and the method has the following defects: 1) each sub-device is additionally provided with an electronic signal acquisition device, so that the realization is complex, the cost is high, and a large space is occupied; 2) when the voltage signal of the sub-equipment is collected, the normal working environment of the equipment can be influenced by the generated electromagnetic interference; 3) when some electronic devices are additionally provided with the electronic signal acquisition device, the physical structure of the original equipment needs to be changed, and the electronic signal acquisition device has certain destructiveness.

Disclosure of Invention

The invention aims to solve the technical problem of how to provide an electronic equipment use recording system which does not need to damage the structure of electronic equipment to be measured, has simple circuit design and high data processing speed.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an electronic equipment usage recording system, characterized by: the current sensor module is used for collecting direct current information of a main node of the electronic equipment; the signal output end of the signal of the data acquisition module is connected with the signal input end of the data transmission module, and the data acquisition module is used for converting the voltage analog signal acquired by the current sensor module into a voltage digital signal; the signal output end of the data transmission module is connected with the signal input end of the data processing module, and the data transmission module is used for transmitting the digital signal obtained by the data acquisition module to the data processing module for processing; the signal output end of the data processing module is connected with the signal input end of the state display module, the data processing module is used for processing transmitted data, and the state display module is used for judging the waveform characteristics of the monitored data, judging the working state of the sub-equipment and displaying the working state of the sub-equipment in real time; and the power supply module is connected with a power supply input end of a module needing power supply in the recording system and is used for providing a working power supply for the module.

The further technical scheme is as follows: the power supply module comprises an LM1117-5.0 type chip and an LM1117-3.3 chip, wherein the LM1117-5.0 provides +5V power supply voltage for the system, the LM1117-3.3 provides +3.3V power supply voltage for the system, and the input voltage of the two chips is greater than 6.5V and smaller than 12V.

Preferably, the current sensor uses a HCS-LSP3 series closed loop Hall current sensor.

The further technical scheme is as follows: the data acquisition module comprises an MC9S12XS128MAA type single chip microcomputer, AD conversion of output signals of the current sensor is completed through an ATD module in the single chip microcomputer, after conversion is completed, the output data are 8/10/12 bit parallel data, then the data are transmitted to an SCI module, the parallel data are sequentially transmitted one bit by one bit, and when a circuit is designed, a pin 51 of the single chip microcomputer is an input pin of the ATD conversion and is connected with an output pin of the current sensor; the 64 pins of the single chip microcomputer are SCI serial output pins and are connected with the input end of RS 232.

The further technical scheme is as follows: the related process of the software running in the single chip microcomputer is as follows:

1) initializing the ATD module: a register ATD0CTL1 is mainly set, so that the resolution of AD sampling selects 12 bits; register ATD0CTL4 is set so that the data sample time is 4 clock cycles.

2) Initializing the SCI module: a register SCI0BD is mainly set to enable the data serial transmission baud rate to be 56000; setting a register SCI0CR1, and carrying out serial data transmission without parity check;

3) checking an ATD status register ATD0STAT2_ CCF0, checking whether conversion is completed or not, if so, setting the value to be 1, respectively storing the high 8 bits and the low 8 bits of the data obtained by conversion in AD _ result _ H and AD _ result _ L variables, and turning to the step 4); if the conversion is not completed, entering a waiting state;

4) checking the SCI status register SCI0SR1_ TDRE to see whether the sending data register is empty, if so, assigning a variable AD _ result _ H to the data register SCI0DRL, and turning to the step 5); if SCI0SR1_ TDRE is not empty, it indicates that SCI data register can not receive new data, and enters into waiting state;

5) checking the SCI status register SCI0SR1_ TDRE to see whether the sending data register is empty, if so, assigning a variable AD _ result _ L to the data register SCI0DRL, and turning to step 6); if SCI0SR1_ TDRE is not empty, it indicates that SCI data register can not receive new data, and enters into waiting state;

6) whether the data acquisition is finished or not, if not, turning to the step 3) to perform new data sampling and transmission; if so, the routine is terminated.

6. The electronic equipment usage recording system of claim 1, wherein: the data transmission module uses RS232, RS422 or RS485 serial interface modules.

The further technical scheme is as follows: the electronic equipment use management platform runs in the data processing module, the management platform comprises a serial port setting module, a serial port receiving data display module, a current display module and an equipment use statistical table module, and the serial port setting module is used for setting serial port communication parameters of the data acquisition board; the serial port receiving data display module is used for displaying data received by the serial port and completely eliminating the data in the receiving area; the current display module is used for drawing the acquired current waveform; the device usage statistical table module is used for counting the starting time, the shutdown time and the running time of each sub-device of the electronic equipment.

The invention also discloses a using method of the electronic equipment use recording system, which is characterized by comprising the following steps:

1) placing a current sensor at a main power supply node of the tested electronic equipment for collecting a main power supply of the tested electronic equipment;

2) connecting the current sensor with the data acquisition module, and connecting the serial port of the data acquisition module with the serial port of the data processing module;

3) operating an electronic equipment use management platform in the data processing module;

4) the current sensor module and the data acquisition module are powered on to operate, and the current state data of the electronic equipment is acquired in real time;

5) setting parameters by using a pull-down menu of a management platform through electronic equipment;

6) a serial port opening button is hit by a middle point of the electronic equipment using management platform, current data collected by the system starts to be displayed above an empty receiving area in a rolling mode, and the current data is displayed above a current parameter display area in a graphic mode;

7) the method comprises the steps of opening or closing a sub-device 1, a sub-device 2, a sub-device 3 and a sub-device 4 of the electronic equipment, displaying current change above current parameter display, comparing data with an original database by using a management platform of the electronic equipment, judging which device is started or shut down through mode identification, accordingly giving use records and management of each device of the electronic equipment, and displaying the use records and management in a device use statistical table.

The further technical scheme is as follows: the electronic equipment is developed using MATLAB software using a management platform.

Preferably, the parameter setting includes a serial port, a baud rate, a check bit, a data bit and a stop bit.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the system can complete the use record management of all devices of the whole complex equipment through a simple current acquisition and mode matching process, and compared with the traditional system, the system is simple in circuit design, less in state monitoring data and free of damage to the original working environment of the equipment to be tested. In addition, the system designs a serial port receiving and equipment state display interface based on MATLAB, and data are transmitted through the serial port, so that the method is simple and convenient, the data processing speed is high, and the method is efficient.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a functional block diagram of a system according to an embodiment of the present invention;

FIG. 2 is a software design flow of a data collection module in the system according to an embodiment of the present invention;

FIG. 3 is a flow chart of programming in the system according to an embodiment of the present invention;

FIG. 4 is an interface diagram of an electronic equipment usage management platform in the system according to an embodiment of the invention;

FIG. 5 is a diagram illustrating current variations in the booting process of the sub-devices 1-4 according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating a current variation of the sub-devices 4-1 during shutdown in the embodiment of the present invention;

FIG. 7 is a diagram of test results using an electronic equipment usage management platform according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1, an embodiment of the present invention discloses a usage recording system for electronic equipment, which includes a current sensor module, wherein a signal output end of the current sensor module is connected to a signal input end of a data acquisition module, and the current sensor module is used for acquiring direct current information of a backbone node of the electronic equipment; the signal output end of the signal of the data acquisition module is connected with the signal input end of the data transmission module, and the data acquisition module is used for converting the voltage analog signal acquired by the current sensor module into a voltage digital signal; the signal output end of the data transmission module is connected with the signal input end of the data processing module, and the data transmission module is used for transmitting the digital signal obtained by the data acquisition module to the data processing module for processing; the signal output end of the data processing module is connected with the signal input end of the state display module, the data processing module is used for processing transmitted data, and the state display module is used for judging the waveform characteristics of the monitored data, judging the working state of the sub-equipment and displaying the working state of the sub-equipment in real time; and the power supply module is connected with a power supply input end of a module needing power supply in the recording system and is used for providing a working power supply for the module.

Designing a power supply module: the power supply module is realized by adopting LM1117-5.0 and LM1117-3.3 chips, wherein the LM1117-5.0 provides 5V power supply voltage for the system, the LM1117-3.3 provides 3.3V power supply voltage for the system, and the input voltage of the two chips is larger than 6.5V and smaller than 12V.

A current sensor module: the current sensor module adopts an HCS-LSP3 series closed-loop Hall current sensor, and can measure direct current, alternating current, pulse and various irregular currents. The sensor has the advantages of high precision, good linearity, low power consumption, strong current overload capacity and the like, and is widely applied to the fields of current monitoring, inverter power supply, solar power supply, driving control of variable-frequency household appliances and the like. The design selects the series of HCS-LSP3-10A type chips, the actual chip is shown in figure 2, the rated current is 10A, the measurement range is-20A, and the rated output voltage is 1.65V +/-0.625V.

The HCS-LP3-10A type current sensor has 5 pins in total, wherein 1 pin is an output pin, 2 pins are ground, 3 pins are power supply pins (+ 3.3V), 4 pins and 5 pins are current series connection pins, namely, when monitoring current, the sensor can be connected in a circuit in series through the 4 pins and the 5 pins, in addition, the sensor also supports another measuring mode, namely, a cable of the current to be measured passes through a chip through a circular hole of the sensor, and an electromagnetic ring in the sensor can sense the current of the cable. This design adopts the second kind monitoring mode, lets the cable pass the sensor electromagnetic ring promptly and then induced-current changes.

A data acquisition module: an MC9S12XS128MAA single chip microcomputer is selected, and the device comprises a large amount of on-chip memories and external I/O. The MC9S12XS128M is a 16-bit device, and comprises an on-chip memory consisting of a 16-bit central processing unit (CPU 12X), a 128KB program Flash (P-Flash) and an 8KB data Flash (D-Flash). The device also comprises 2 asynchronous Serial Communication Interfaces (SCI), 1 Serial Peripheral Interface (SPI), 1 8-channel input capture/output comparison (IC/OC) timer module (TIM), a 16-channel 12-bit A/D converter (ADC) and an 8-channel pulse width modulation module (PWM). The MC9S12XS128 has 91 independent digital I/O ports, some of which have interrupt and wake functions.

In this design, the modules required in the MC9S12XS128M include an Analog To Digital (ATD) module and an SCI module. The ATD module completes AD conversion of output signals of the current converter, after the conversion is completed, the output data are 8/10/12 bit parallel data, then the data are transmitted to the SCI module, and the parallel data are sequentially transmitted one bit by one bit. When the circuit is designed, the pin 51 of the single chip microcomputer is an input pin for ATD conversion and is connected with an output pin of the current sensor; the 64 pins of the single chip microcomputer are SCI serial output pins and are connected with the input end of RS 232.

In order to realize the control of the Freescale singlechip MC9S12XS128, a CodeWarrior software development environment provided by the company needs to be used for programming by adopting a C language, the used singlechip controller module mainly comprises an ATD module and an SCI serial port module, and because the number of the ATD module and the SCI serial port module which are integrated in the singlechip is 2, the corresponding first module is adopted during program design. The software development design flow is shown in fig. 2.

The software design comprises the following specific steps:

1) initializing the ATD module: a register ATD0CTL1 is mainly set, so that the resolution of AD sampling selects 12 bits; register ATD0CTL4 is set so that the data sample time is 4 clock cycles.

2) Initializing the SCI module: a register SCI0BD is mainly set to enable the data serial transmission baud rate to be 56000; register SCI0CR1 is set and data is transmitted serially without parity.

3) Checking an ATD status register ATD0STAT2_ CCF0, checking whether conversion is completed or not, if so, setting the value to be 1, respectively storing the high 8 bits and the low 8 bits of the data obtained by conversion in AD _ result _ H and AD _ result _ L variables, and turning to the step 4); if the conversion is not completed, entering a waiting state;

4) checking SCI status register SCI0SR1_ TDRE to see if the transmission data register is empty (when SCI0SR1_ TDRE =1, the transmission data register is empty), if so, assigning variable AD _ result _ H to data register SCI0DRL, and going to step 5); if SCI0SR1_ TDRE is not empty, it indicates that SCI data register can not receive new data, and enters into waiting state;

5) checking SCI status register SCI0SR1_ TDRE to see if the transmission data register is empty (when SCI0SR1_ TDRE =1, the transmission data register is empty), if so, assigning variable AD _ result _ L to data register SCI0DRL, and going to step 6); if SCI0SR1_ TDRE is not empty, it indicates that SCI data register can not receive new data, and enters into waiting state;

6) whether the data acquisition is finished or not, if not, turning to the step 3) to perform new data sampling and transmission; if so, the routine is terminated.

Designing a data transmission module:

although the byte sending and receiving of serial communication bit by bit is slower than the parallel communication of byte, the serial communication can only use one line to send data, so that the line connection is simple and the long-distance transmission can be realized. At present, serial ports which are commonly used comprise RS232, RS422, RS485 and the like, wherein the RS232 adopts an unbalanced transmission mode, the RS422 and the RS485 adopt a balanced transmission mode, and common-mode interference in signals can be inhibited by transmitting differential signals. RS232 communication can be completed by using 3 wires, namely a ground wire, a sending wire and a receiving wire, and the communication mode is the most common serial communication interface at present. The RS232 interface is adopted to complete serial transmission of data, and when data are transmitted, only current signals collected by the singlechip controller are transmitted to the computer, but the computer does not reversely transmit the data, so that the RS232 and the serial port of the computer can complete communication only by two lines, namely a ground line and a transmission line, and the baud rate is set to be 56000 bit/s.

Designing a GUI display interface: the program design mainly includes the processes of serial data reception, data processing, state display and the like, and the specific design flow is shown in fig. 3, wherein the serial data reception is a serious difficulty of the program, the data processing can complete mode identification through a proximity method, and the state display is to display the on-off time, the use duration and other conditions of the equipment sub-equipment on a GUI interface.

An interface of a management platform for electronic equipment use based on power supply monitoring data is shown in fig. 4, and the interface mainly comprises a serial port setting area, a serial port receiving data display area, a current display area and an equipment use statistical table. The serial port setting area is used for setting serial port communication parameters of the data acquisition board, and the serial port communication parameters comprise a serial port number, a baud rate, a check bit, a data bit, a stop bit and the opening and closing of a serial port; the serial port received data display area is used for displaying data received by the serial port, and the data of the receiving area can be completely removed through a receiving area clearing button below the serial port received data display area; the current display area is used for drawing the acquired current waveform; the device usage statistical table is used for counting the starting time, the closing time and the running time of each sub-device of the electronic equipment.

System operation flow

Correspondingly, the invention also discloses a using method of the electronic equipment use recording system, which is characterized by comprising the following steps:

1) placing a current sensor at a main power supply node of the tested electronic equipment for collecting a main power supply of the tested electronic equipment;

2) connecting the current sensor with the data acquisition module, and connecting the serial port of the data acquisition module with the serial port of the data processing module;

3) operating an electronic equipment use management platform in the data processing module;

4) the current sensor module and the data acquisition module are powered on to operate, and the current state data of the electronic equipment is acquired in real time;

5) setting parameters by using a pull-down menu of a management platform through electronic equipment;

6) a serial port opening button is hit by a middle point of the electronic equipment using management platform, current data collected by the system starts to be displayed above an empty receiving area in a rolling mode, and the current data is displayed above a current parameter display area in a graphic mode;

7) the method comprises the steps of opening or closing a sub-device 1, a sub-device 2, a sub-device 3 and a sub-device 4 of the electronic equipment, displaying current change above current parameter display, comparing data with an original database by using a management platform of the electronic equipment, judging which device is started or shut down through mode identification, accordingly giving use records and management of each device of the electronic equipment, and displaying the use records and management in a device use statistical table.

Fig. 5-6 show the current changes of different devices during power-on and power-off, and fig. 7 shows the test result interface obtained by real-time monitoring of an electronic device by using the whole system. The system can collect current data of the electronic equipment and transmit the current data through the serial port in real time, the GUI interface designed by MATLAB can receive data sent by the serial port and draw current waveforms in real time, and by utilizing the waveform information, the GUI can also judge actions of starting, shutting down and the like of the equipment, record corresponding time and further finish use management of each sub-equipment of the electronic equipment.

In conclusion, the system can complete the use record management of all devices of the whole complex equipment through a simple current collection and mode matching process, is simple in circuit design and less in state monitoring data compared with a traditional system, and cannot damage the original working environment of the equipment to be tested. In addition, the system designs a serial port receiving and equipment state display interface based on MATLAB, and data are transmitted through the serial port, so that the method is simple and convenient, the data processing speed is high, and the method is efficient.