CN218183349U - Oscillograph communication safety testing tool - Google Patents

Oscillograph communication safety testing tool Download PDF

Info

Publication number
CN218183349U
CN218183349U CN202221178933.6U CN202221178933U CN218183349U CN 218183349 U CN218183349 U CN 218183349U CN 202221178933 U CN202221178933 U CN 202221178933U CN 218183349 U CN218183349 U CN 218183349U
Authority
CN
China
Prior art keywords
electrically connected
oscillograph
module
network
embedded processor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202221178933.6U
Other languages
Chinese (zh)
Inventor
蒋连钿
李海勇
田君杨
沈梓正
巫聪云
刘斌
黄超
徐晓峰
杨彦
韩冰
黄鹏飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Power Grid Co Ltd
Original Assignee
Guangxi Power Grid Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangxi Power Grid Co Ltd filed Critical Guangxi Power Grid Co Ltd
Priority to CN202221178933.6U priority Critical patent/CN218183349U/en
Application granted granted Critical
Publication of CN218183349U publication Critical patent/CN218183349U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model provides a oscillograph communication safety test instrument, oscillograph communication safety test instrument includes: the device comprises a function test interface module, an internal storage module, a man-machine interaction module, a power supply module and a DSP embedded processor. The utility model discloses a wave recorder communication safety testing tool for the debugging and acceptance of wave recorder. This instrument can test the network security and the communication service function of oscillograph, can test oscillograph and the network equipment of being correlated with under the different network structures, tests the main website communication function of oscillograph simultaneously, can effectively promote the network security level of oscillograph, shortens equipment debugging and acceptance cycle, reduces the cost of labor.

Description

Oscillograph communication safety testing tool
Technical Field
The utility model relates to a communication security technical field particularly, relates to a oscillograph communication safety testing tool.
Background
The wave recorder is an important device for completing the monitoring of the operation of the power grid. In recent years, with the high importance of the power system on the network security, the wave recorder becomes a serious disaster area with a lot of potential network information security hazards, so the network security test work before the wave recorder enters the network is particularly important. However, the problems of large workload, long period, high cost and the like of the network security test of the wave recorder are urgently solved due to the large number of the wave recorder equipment, the complex network structure and the strong speciality of the network security test at present.
The main method for carrying out network access safety evaluation on a recorder in the current power system is as follows: and scanning the equipment operating system by using a vulnerability scanning device by a third-party organization, and issuing a network access security evaluation report. Only when the report result is 'pass', the wave recorder side can access the scheduling data network; if the risk item still exists, a recorder manufacturer is informed to carry out rectification, and loophole scanning is carried out again after the rectification is finished until the test is passed.
In the process, multiple personnel such as equipment users, manufacturers and third-party organizations are involved, and in addition, the equipment is large in quantity, high in work repeatability, uncontrollable in personnel coordination and rectification period, and the risk of influencing the normal operation time of the equipment exists. In addition, the communication with the master station and the completion of data uploading are also one of important functions of the wave recorder, the function cannot be tested before the wave recorder is safely accessed to the network, only after the wave recorder is evaluated through the access safety, the wave recorder contacts the master station operation and maintenance personnel to carry out joint debugging, and if network parameters are modified in the joint debugging process, new network safety risks can be brought, and the access safety evaluation needs to be carried out again. Therefore, in the whole debugging and acceptance process of the oscillograph, personnel of each party need to go to the transformer substation for multiple times, the working efficiency is low, the labor cost is increased, and the period is prolonged.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem be: at present, in the whole debugging and acceptance process of the oscillograph, personnel of all parties need to go to a transformer substation for many times, and the working efficiency is low.
In order to solve the above problem, the utility model provides a oscillograph communication safety testing tool, wherein, oscillograph communication safety testing tool includes:
the device comprises a function test interface module, an internal storage module, a human-computer interaction module, a power supply module and a DSP embedded processor;
the function test interface module is electrically connected with the DSP embedded processor;
the internal storage module is electrically connected with the DSP embedded processor;
the human-computer interaction module is electrically connected with the DSP embedded processor;
and the power supply module is electrically connected with the DSP embedded processor.
Preferably, the functional test interface module specifically includes;
the system comprises an FPGA and a plurality of Ethernet controllers;
the Ethernet controller is electrically connected with the FPGA;
one end of the FPGA is electrically connected with the Ethernet controller, and the other end of the FPGA is electrically connected with the DSP embedded processor.
Preferably, the number of the ethernet controllers is 2.
Preferably, the internal storage module specifically includes;
DDR memory and FLASH memory;
the DDR memory is electrically connected with the DSP embedded processor;
and the FLASH memory is electrically connected with the DSP embedded processor.
Preferably, the human-computer interaction module specifically comprises;
a keyboard and an LCD display screen;
the keyboard is electrically connected with the DSP embedded processor;
and the LCD display screen is electrically connected with the DSP embedded processor.
Preferably, the power module specifically includes;
a battery;
and the battery is electrically connected with the DSP embedded processor.
Preferably, the battery is a rechargeable battery.
Preferably, the power module further comprises;
the power supply management unit, the power switch and the power interface;
one end of the power management unit is electrically connected with the battery, and the other end of the power management unit is electrically connected with the power switch and the power interface;
the power switch is electrically connected with the power management unit;
the power interface is electrically connected with the power management unit.
Compared with the prior art, oscillograph communication safety test tool have following beneficial effect:
(1) The utility model discloses a wave recorder debugging personnel provide a convenient, efficient network security testing tool, can accomplish the simulation closed loop test of network and function before the wave recorder goes into the net, have both guaranteed the fail safe nature of wave recorder, also can reduce unnecessary repetitive work.
(2) The utility model discloses a oscillograph communication safety test instrument, the function is perfect, covers oscillograph to the multiple test mode of main node of main website link, can carry out complete closed loop test to folk prescription equipment, does not rely on many parties personnel to participate in alliing oneself with the accent, effectively reduces the cost of labor, shortens the debugging cycle.
(3) The utility model discloses a oscillograph communication safety testing tool, easy operation, degree of automation is high, and the configuration is simple, and it is low to user's professional degree requirement threshold.
(4) The utility model discloses a oscillograph communication safety testing tool, convenient to carry, hand-held type, integrated structural design, small, do not have peripheral hardware, adapt to various site environment and use.
Drawings
Fig. 1 is a schematic structural view of a communication safety testing tool of the oscillograph of the present invention;
FIG. 2 is a functional block diagram of the communication safety testing tool of the oscillograph of the present invention;
fig. 3 is an external front view of the communication safety testing tool of the oscillograph of the present invention;
fig. 4 is an external top view of the oscillograph communication safety testing tool of the present invention;
fig. 5 is an external bottom view of the oscillograph communication safety testing tool of the present invention;
fig. 6 is a schematic diagram of the mode test of the oscillograph of the present invention;
FIG. 7 is a schematic diagram of the master station mode test of the present invention;
fig. 8 is a schematic diagram of the gatekeeper mode test of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Example one
There is provided a wave recorder communication safety testing tool, as shown in fig. 1, wherein the wave recorder communication safety testing tool includes:
the device comprises a function test interface module, an internal storage module, a man-machine interaction module, a power supply module and a DSP embedded processor;
the function test interface module is electrically connected with the DSP embedded processor;
the internal storage module is electrically connected with the DSP embedded processor;
the human-computer interaction module is electrically connected with the DSP embedded processor;
and the power supply module is electrically connected with the DSP embedded processor.
The core function of the oscillograph communication safety testing tool is completed by the DSP embedded processor, the requirements of low power consumption and high efficiency of the handheld equipment are met, and meanwhile, the embedded system meets the requirement of network information safety protection of the power system.
The functional test interface module, as shown in fig. 1, specifically includes;
the system comprises an FPGA and a plurality of Ethernet controllers;
the Ethernet controller is electrically connected with the FPGA;
one end of the FPGA is electrically connected with the Ethernet controller, and the other end of the FPGA is electrically connected with the DSP embedded processor.
Wherein, the number of the Ethernet controllers is 2.
The oscillograph communication safety testing tool is provided with two independent Ethernet controllers and network ports, and the FPGA is adopted to complete the transmission/reception of corresponding test data of the two network ports in different functional modes.
The internal storage module, as shown in fig. 1, specifically includes;
DDR memory and FLASH memory;
the DDR memory is electrically connected with the DSP embedded processor;
and the FLASH memory is electrically connected with the DSP embedded processor.
The oscillograph communication safety testing tool is provided with a DDR memory for caching the operation data of the processor and improving the performance of the tool; the FLASH memory is configured for storing system programs, configuration files and test data, and has power failure retention capability.
The human-computer interaction module, as shown in fig. 1, specifically includes;
a keyboard and an LCD display screen;
the keyboard is electrically connected with the DSP embedded processor;
and the LCD display screen is electrically connected with the DSP embedded processor.
The oscillograph communication safety testing tool is provided with an LCD display screen and a keyboard, so that the man-machine interaction requirement of all functions of the tool can be met without externally connecting other equipment.
As shown in fig. 1, the power supply module specifically includes;
a battery;
and the battery is electrically connected with the DSP embedded processor.
Wherein the battery is a rechargeable battery.
The built-in rechargeable battery of oscillograph communication safety testing instrument adopts the general interface that charges of Type-C, and nimble adaptation is like charger or portable power source such as cell-phone, flat board.
Wherein, the power module, as shown in fig. 1, further comprises;
the power supply management unit, the power switch and the power interface;
one end of the power management unit is electrically connected with the battery, and the other end of the power management unit is electrically connected with the power switch and the power interface;
the power switch is electrically connected with the power management unit;
the power supply interface is electrically connected with the power supply management unit.
The oscillograph communication safety testing tool is provided with a power supply management module, and can be simultaneously plugged for work and charged, so that the long-time use requirement is met; a power switch is configured, and the power supply is completely cut off after being turned off, so that the power consumption is reduced; meanwhile, a hot start power supply key is also configured, the power supply of the display screen is cut off after the hot start power supply key is closed, the operation is low in power consumption, and the direct access to the system without initialization is ensured when the system is restarted.
The integral function of the oscillograph communication safety testing tool is used for debugging the oscillograph of the transformer substation, communication service and network safety self-testing and acceptance, and the main functional modules are shown in figure 2.
A communication service module: the communication connection with the wave recorder is realized, and protocols such as HTTP and FTP based on TCP/IP are supported; and the IEC103, IEC61850 and other protocols used by the wave recorder are supported.
The network security testing module: the loophole scanning is carried out on the oscillograph operating system, network scanning, host scanning and database scanning are supported, the tool can be connected with a computer through a network port, and a matched management program is used for carrying out loophole database upgrading.
The data transmission testing module: aiming at a network structure of a network gate accessed by a wave recorder, a wave recorder communication service program and a main station communication service program are respectively simulated by two wave recorder communication safety testing tools, and wave recording data passing and integrity tests of the network gate are verified. The method can be used for carrying out simulation closed loop test under the condition that any one of the oscillograph, the network gate and the main station is not put into operation or has no joint debugging condition, and can also be used for troubleshooting when communication connection is interrupted in the operation process.
The master station function test module: and simulating a master station program to test the communication service of the wave recorder, wherein the test comprises communication connection/port, constant value calling, file list calling, file calling, remote starting and the like. The method can be used for directly accessing the communication service function of the wave recorder after the current acceptance of the communication service function of the wave recorder is met and the conditions are met in the later period under the condition that the wave recorder does not have the network access condition (for example, the IP of a scheduling mechanism is not allocated and the strategy is not configured) or the master station does not have the joint-regulation condition, and related personnel do not need to repeatedly go to a transformer substation.
The communication safety testing tool of the wave recorder adopts a handheld structure design, and the appearance of the tool is shown in fig. 3-5, wherein fig. 3 is a front view, fig. 4 is a top view, and fig. 5 is a bottom view.
The oscillograph communication safety testing tool mainly comprises the following interfaces, as shown in figure 4:
2 network interfaces (LAN 1, LAN 2): and the RJ45 net port is used for connecting equipment to be tested and is positioned on the top surface of the tool.
1 set of human-computer interaction interface (LCD): the display screen is used for displaying a functional interface of the tool; the keyboard is used for inputting keys operated by a user and is positioned on the front face of the tool, and the functions of the keys are as follows as shown in figure 3:
rec: the mode switching key of the wave recorder can test the network information safety of the wave recorder in the mode;
sta: the master station mode switching key can test the communication service of the wave recorder in the mode;
and (4) Gap: a gatekeeper mode switching key, which can perform data isolation transmission test on the gatekeeper in the mode;
rst: a reset key, which resets the mode and configuration data to the initial state by one key;
pow: a power-on/power-off button which is a hot start/hot power-off button and does not cut off the power supply after power-off;
0 to 9: the number key is used for inputting numbers required by IP and ports;
h: symbol key for inputting symbols needed by IP and port;
del: a delete key for deleting the content selected by the cursor;
↓ ← →: the direction key is used for selecting a module icon of the functional interface or moving a cursor;
esc: a return key for returning to the previous menu or canceling the input;
enter: a confirm button for opening a menu, entering a function, or inputting a confirmation.
1 charging/operating power interface (Charge Port): the Type-C interface is used for charging a built-in battery of the tool and can also be directly used as a working power supply for supplying power;
1 Power Switch (Power Switch): and a slide switch for turning on/off the power supply and performing forced shutdown operation.
The charging/operating power interface and power switch are located on the bottom surface of the tool, see fig. 5.
The recorder communication safety testing tool mainly has three working modes, which are respectively: recorder mode, master station mode and gatekeeper mode.
1) Oscillograph model
The mode mainly tests the network security of the wave recorder, and a communication service module and a network security testing module are used. The mode is suitable for self-test and rectification before third-party network access security evaluation test, as shown in fig. 6:
firstly, pressing a Rec button to switch to a recorder mode.
Any network port of the wave recorder and any network port of the wave recorder communication safety testing tool can be connected through a network cable, LAN 1 or LAN 2 can be used, and LAN 1 is adopted in the example.
And configuring an IP for the oscillographs and the network ports of the oscillograph communication safety testing tool. For ease of understanding, the present example uses a typical setup, but is not limited to this setup, and it is sufficient to use the same segment IP according to the configuration of the site recorder port IP (the same below). As in the example: the IP of the network port of the wave recorder LAN 1 is set to 192.168.1.1, and the IP of the network port of the wave recorder communication safety testing tool LAN 1 is set to 192.168.1.2.
And in the Rec mode, after the connection with the wave recorder is successful, the loophole scanning is automatically carried out on the wave recorder to generate a network security test report. The report can be checked on the tool, and can also be exported by a management program matched with a computer connected with the internet access.
2) Master station mode
The mode mainly tests the communication service of the wave recorder, and starts a communication service module and a master station function test module, as shown in fig. 7:
firstly, pressing a Sta button to switch to a master station mode.
The network cable is used for connecting a communication network port of the wave recorder to be tested and a network port of the wave recorder communication safety testing tool, and two modes of a single main station and double main stations are supported. In the single-master-station mode, LAN 1 or LAN 2 of the oscillograph communication safety testing tool can be accessed. In the dual-master-station mode, for example, one wave recorder needs to be simultaneously accessed to a substation and a master station in a transformer substation, or one wave recorder needs to be simultaneously accessed to a master station for adjustment and a master station for provincial adjustment, and the LAN 1 and the LAN 2 are simultaneously used.
And configuring IP for the communication safety test tool of the wave recorder and the wave recorder, configuring the IP of the same network segment for the same group of network ports and configuring the IP of different network segments between the two groups of network ports in a double-master-station mode. As in the example: in the first group, the IP of the network port of the wave recorder LAN 1 is set to 192.168.1.1, and the IP of the network port of the LAN 1 of the wave recorder communication safety testing tool is set to 192.168.1.2; and in the second group, the IP of the network port of the wave recorder LAN 2 is set to 10.10.1.1, and the IP of the network port of the wave recorder communication safety testing tool LAN 1 is set to 10.10.1.2.
Besides the configuration of the IP, the fixed value and the file service port of the wave recorder also need to be configured, the port configuration of the wave recorder with the domestic common model is built in the tool, and the port can be automatically configured by selecting the model of the wave recorder. If the port of the wave recorder changes or the wave recorder model which is not in the built-in configuration is not available, the manual configuration can be selected.
Under the Sta mode, the flow of the recorder communication service test is as follows:
(1) establishing connection, wherein after the connection is successful, the test result shows 'check √', otherwise, shows 'x', and if the test fails, the connection with the wave recorder fails, and subsequent tests cannot be carried out;
(2) calling a fixed value, sending a fixed value calling instruction to the oscillograph, receiving the fixed value and analyzing correctly, displaying a check mark on the test result, and otherwise, displaying a check mark and jumping to the next test item;
(3) calling the file list, sending a file list calling instruction to the oscillograph, receiving the file list and analyzing the file list correctly, displaying a check mark on the test result, and otherwise, displaying a check mark and jumping to the next test item;
(4) calling the file, sending a file calling instruction to the oscillograph, receiving the file and analyzing the file correctly (supporting a comtrade standard format file), displaying a 'check mark' on the test result of the item, and otherwise displaying a 'check mark' and jumping to the next test item;
(5) the method comprises the steps of remotely starting, sending a remote starting instruction to a wave recorder, sending a file list calling instruction to the wave recorder after 5 seconds, searching whether a new file generated in the current time period after the remote starting instruction is sent or not after the file list is received, if yes, displaying a check mark on a test result, and otherwise, displaying an x;
(6) after the test is finished, deleting the cached file list and the cached file;
(7) and outputting a test result report.
3) Network gate mode
The mode mainly tests the passing performance and integrity of the wave recording data transmission of the network gate, and a communication service module, a data transmission module and a master station function test module are started. The mode needs two oscillographs communication safety testing tools to complete in a coordinated mode; an analog recorder called tool A; an analog master station, referred to as tool B, as shown in FIG. 8:
firstly, pressing the Gap keys of the tool A and the tool B to switch to the network gate mode.
And the network port at the network gate A and the LAN 1 network port of the tool A are connected by using a network cable, and the network port at the network gate B and the LAN 2 network port of the tool B are connected by using a network cable.
And configuring an IP for the network ports of the communication safety testing tool of the network brake and the wave recorder, configuring the same network segment IP for the same-end network port, configuring different network segment IPs between the network ports at two ends, and simulating the network structures of a local area network and a dispatching data network in the transformer substation so as to verify the network isolation and the data transmission capability of the network brake equipment. As in the example: at the A end, the IP of a network port A of a network gate LAN is set to be 192.168.1.2, and the IP of a network port of a recorder communication safety testing tool LAN 1 is set to be 192.168.1.1; and at the end B, the IP of a network gate LAN B network port is set to be 10.10.1.1, and the IP of a network port of a recorder communication safety testing tool LAN 2 is set to be 10.10.1.2.
The fixed values of the tool A and the tool B, the file service ports and the protocols automatically adopt default configuration, and the two ends are consistent.
In Gap mode, two tests are available:
(1) network security isolation function test of network gate
Under the environment that an external network is completely disconnected, the tool A simulates a oscillograph with security holes and sends a network attack data packet to the end A of the network gate, and the tool B performs network security test at the end B of the network gate, wherein the test flow is the same as the mode of the oscillograph.
If the network security test is passed, it indicates that the network security isolation function of the gatekeeper is effective, otherwise, it is not effective.
(2) Testing of wave recording data transmission function of network gate
The tool A simulates a wave recorder to be accessed to the end A of the network gate, the tool B simulates a master station to be accessed to the end B of the network gate, different network segment IPs are adopted at the two ends, and the test flow is the same as the communication service flow of the Sta mode. The principle is that the main station can normally realize the communication service function of the wave recorder after passing through the network gate equipment, namely, the wave recording data transmission function of the network gate is shown to be effective, otherwise, the wave recording data transmission function is not effective.
The communication safety testing tool of the wave recorder in the embodiment is used for debugging and acceptance of the wave recorder. This instrument can test the network security and the communication service function of oscillograph, can test oscillograph and the network equipment of being correlated with under the different network structures, tests the main website communication function of oscillograph simultaneously, can effectively promote the network security level of oscillograph, shortens equipment debugging and acceptance cycle, reduces the cost of labor.
Although the present invention has been described with reference to the above embodiments, the scope of the present invention is not limited thereto. Without departing from the spirit and scope of the present invention, those skilled in the art can make various changes and modifications, which will fall into the protection scope of the present invention.

Claims (8)

1. A oscillograph communication safety test tool, wherein the oscillograph communication safety test tool comprises:
the device comprises a function test interface module, an internal storage module, a man-machine interaction module, a power supply module and a DSP embedded processor;
the function test interface module is electrically connected with the DSP embedded processor;
the internal storage module is electrically connected with the DSP embedded processor;
the human-computer interaction module is electrically connected with the DSP embedded processor;
and the power supply module is electrically connected with the DSP embedded processor.
2. The oscillograph communication security test tool according to claim 1, wherein the functional test interface module specifically includes;
the system comprises an FPGA and a plurality of Ethernet controllers;
the Ethernet controller is electrically connected with the FPGA;
one end of the FPGA is electrically connected with the Ethernet controller, and the other end of the FPGA is electrically connected with the DSP embedded processor.
3. The oscillograph communication security test tool of claim 2, wherein there are 2 ethernet controllers.
4. The oscillograph communication security test tool of claim 1, wherein the internal memory module includes;
DDR memory and FLASH memory;
the DDR memory is electrically connected with the DSP embedded processor;
and the FLASH memory is electrically connected with the DSP embedded processor.
5. The oscillograph communication security test tool of claim 1, wherein the human-computer interaction module includes;
a keyboard and an LCD display screen;
the keyboard is electrically connected with the DSP embedded processor;
and the LCD display screen is electrically connected with the DSP embedded processor.
6. The oscillograph communication security test tool of claim 1, wherein the power module, in particular includes;
a battery;
and the battery is electrically connected with the DSP embedded processor.
7. The oscillograph communication security test tool of claim 6, wherein the battery is a rechargeable battery.
8. The oscillograph communication security test tool of claim 7, wherein the power module further includes;
the power supply management unit, the power switch and the power interface;
one end of the power management unit is electrically connected with the battery, and the other end of the power management unit is electrically connected with the power switch and the power interface;
the power switch is electrically connected with the power management unit;
the power interface is electrically connected with the power management unit.
CN202221178933.6U 2022-05-16 2022-05-16 Oscillograph communication safety testing tool Active CN218183349U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221178933.6U CN218183349U (en) 2022-05-16 2022-05-16 Oscillograph communication safety testing tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221178933.6U CN218183349U (en) 2022-05-16 2022-05-16 Oscillograph communication safety testing tool

Publications (1)

Publication Number Publication Date
CN218183349U true CN218183349U (en) 2022-12-30

Family

ID=84604449

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221178933.6U Active CN218183349U (en) 2022-05-16 2022-05-16 Oscillograph communication safety testing tool

Country Status (1)

Country Link
CN (1) CN218183349U (en)

Similar Documents

Publication Publication Date Title
CN107632219B (en) Automatic startup and shutdown test system and test method thereof
CN105788227B (en) Fault diagnosis equipment for electricity consumption information acquisition system
CN203894351U (en) Hand-held relay protection testing device for intelligent transformer station
CN105842572B (en) A kind of portable general comprehensive detector
CN101175285A (en) Automatic testing method and system for mobile phone software
CN109376056A (en) Abnormal log analysis method, device, storage medium, mobile terminal and server
CN109802845A (en) A kind of intelligent distribution network terminal simulation test system and its test method
CN110347559A (en) A kind of test method of server energy consumption, device, equipment and readable storage medium storing program for executing
CN103761185B (en) A kind of automatization test system and method
CN218183349U (en) Oscillograph communication safety testing tool
CN202693709U (en) Test tool and test system of electric equipment
CN110611312A (en) On-line simulation system and method for panoramic data of substation bay level
CN102854417A (en) Master test board and testing method thereof
CN112380076A (en) Mobile terminal performance testing method and device based on photoinduction
CN211209715U (en) Portable secondary equipment communication state comprehensive diagnosis instrument
CN105306474A (en) Method for constructing power relay protection machine account system
CN109039777A (en) A kind of wifi equipment and its match network method
CN214583667U (en) Pluggable infrared temperature measuring device for mobile phone
CN206021015U (en) A kind of case becomes observing and controlling debugging terminal and case becomes measure and control device
CN206906521U (en) A kind of ultrasonic circuit logging
CN103066510B (en) Process layer devices debugging instrument
CN210347827U (en) Integrated tester for automation equipment of transformer substation
CN209215893U (en) A kind of ring network cabinet DTU
CN211151974U (en) Secondary equipment serial port parameter intelligent analysis and automatic protocol recognition device
CN207117293U (en) Automatic switchover loading switch cabinet and automatic switchover loading switch cabinet system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant