CN205490608U - Automatic test equipment of railway signal controlgear - Google Patents

Abstract

The utility model relates to an automatic test equipment for railway signal control equipment, which comprises a simulation test machine, a gateway device and a communication protocol conversion device connected in sequence, and also includes a TB terminal row, and the two ends of the TB terminal row are respectively connected to the communication protocol conversion device and the passive device. testing equipment. Compared with the prior art, the utility model adds a TB terminal block on the basis of the original testing equipment, which is convenient for wiring. At the same time, the presence of the communication protocol conversion device can make the protocol compatible between the simulation testing machine and the units of the testing equipment. By simulating and transforming the actual information generated on-site, it can automatically realize the interaction with the measured object, realize automatic testing, improve the testing efficiency, reduce manual participation, and improve the credibility of the testing.

Description

An automatic test equipment for railway signal control equipment

technical field

The utility model relates to a railway communication test equipment, in particular to an automatic test equipment for railway signal control equipment.

Background technique

The LKD2-T3 train control center product is a signal product of CRSC Group, which is used for signal control on railway passenger dedicated lines, and can be applied on existing passenger dedicated railways and future new passenger dedicated lines or intercity high-speed railways. The R&D product test platform is an important means to verify that the product meets the design requirements and ensure product functions, so the test platform is of great significance in the life cycle of product development and operation.

The LKD2-T2/T3 automated test platform is aimed at the whole machine test system of the LKD2-T3 train control center. The test objects include the input and output mining drive unit, LEU communication unit, track circuit unit, and Ethernet unit. The test platform of the utility model has high integration, good man-machine interface, optional manual test or automatic test, and the test simulator can automatically determine test results and automatically generate test reports. During the test, the location of the fault can be precisely located, which facilitates rapid troubleshooting and improves the overall test efficiency.

Utility model content

The purpose of this utility model is to provide an automatic testing equipment for railway signal control equipment in order to overcome the above-mentioned defects in the prior art.

The purpose of this utility model can be achieved through the following technical solutions:

An automatic test equipment for railway signal control equipment, including an analog testing machine, a gateway device, and a communication protocol conversion device connected in sequence, and also includes a TB terminal block, the two ends of the TB terminal block are respectively connected to the communication protocol conversion device and the device under test .

The test equipment also includes a PLC combination device for testing the input and output mining and driving units of the equipment under test by simulating the IO quantity, and feeding back the test information to the simulation test machine. The PLC combination device is connected with the network management device and the TB terminal respectively. connection.

The gateway device includes a first switch and a second switch, the first switch is respectively connected with the analog testing machine, the communication protocol conversion device and the PLC combination device, one end of the second switch is connected with the analog testing machine, and the other end is connected with the analog testing machine. Ethernet unit connection of the device under test.

The communication protocol conversion device includes:

BOK converter, one end is connected to the gateway device, and the other end is connected to the LEU communication unit of the device under test through the TB terminal block, which is used to realize the conversion between Ethernet and RS422 communication protocols;

CANNET converter, one end is connected to the network management device, and the other end is connected to the track circuit unit of the equipment under test through the TB terminal block, which is used to realize the conversion between Ethernet and CAN communication protocols.

There are two simulation testing machines in total, and the two simulation testing machines are both connected to the network management device.

The test equipment also includes a 24V DC power supply, which is connected to the communication protocol conversion device, and connected to the analog test machine and the gateway device through the TB terminal block.

The test equipment also includes a display device connected to the simulation test machine.

Compared with the prior art, the utility model has the following advantages:

1) On the basis of the original test equipment, a TB terminal block is added to facilitate wiring. At the same time, there is a communication protocol conversion device on the side of the communication protocol conversion device, which can make the protocol compatible between the simulation test machine and the units of the tested equipment, and generate actual field information through simulation and conversion. Automatically realize the interaction with the tested object, realize the automatic test, improve the test efficiency, reduce manual participation, and improve the credibility of the test.

2) It can be used for product testing of train control center with standard configuration or non-standard configuration.

3) An independent switch is designed for the Ethernet unit of the device under test, which has strong anti-interference ability and good stability.

4) There are two simulation test machines, which can test multiple units of the device under test at the same time, with high efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Among them: 1. Display device, 6. 24V DC power supply, 201. Simulation testing machine, 202 Simulation testing machine, 301. First switch, 302 Second switch, 401. BOK converter, 402. BOK converter, 501～504 , PLC combination, 701~702, CANNET converter, 801~806, TB combination.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the utility model, and the detailed implementation and specific operation process are given, but the protection scope of the utility model is not limited to the following examples.

An automatic test equipment for railway signal control equipment, which is used to test the function of the whole machine of LKD2-T3 train control center of CRSC Group, including machine test, fault point finding, automatic generation of test reports, etc. The platform can test LKD2-T3 The track circuit unit, LEU communication unit, input and output drive unit, and Ethernet unit of the train control center have four major functions. As shown in Figure 1, it includes an analog test machine, a gateway device, and a communication protocol conversion device connected in sequence, and also includes a TB terminal block, and the two ends of the TB terminal block are respectively connected to the communication protocol conversion device and the device under test. The test equipment also includes a 24V DC power supply 6 and a display device 1. The 24V DC power supply 6 is connected to the communication protocol conversion device, and is connected to the analog testing machine and the gateway device through the TB terminal block, and the display device 1 is connected to the analog testing machine.

The test equipment also includes a PLC combination device for testing the input and output mining and driving units of the tested equipment through analog IO, and feeding back the test information to the simulation test machine. The PLC combination device is respectively connected to the network management device and the TB terminal block. The combination device is composed of four PLC combinations 501-504.

The gateway device includes a first switch 301 and a second switch 302, the first switch 301 is respectively connected with the simulation test machine, the communication protocol conversion device and the PLC combination device, one end of the second switch 302 is connected with the simulation test machine, and the other end is connected with the tested Ethernet unit connection of the device.

The communication protocol conversion device includes:

BOK converters 401, 402, one end is connected to the gateway device, and the other end is connected to the LEU communication unit of the device under test through the TB terminal block, for realizing the conversion between Ethernet and RS422 communication protocols;

One end of the CANNET converters 701 and 702 is connected to the network management device, and the other end is connected to the track circuit unit of the device under test through the TB terminal block, and is used to realize the conversion between Ethernet and CAN communication protocols.

There are two simulation testing machines in total, and the two simulation testing machines 201 and 202 are both connected to the network management device.

Test software and related drivers are installed on the test simulator 201 and test simulator 202, which are the core of the entire test platform, and the display device 1 provides a human-computer interaction interface. Testers can perform test operations and control the test process through the test interface, and the test software outputs control information through the first switch 301 and the second switch 302 and retrieves the whole machine test information of the LKD2-T3 train control center. The test simulator 201 and the test simulator 202 are connected to the first switch 301 and the second switch 302 , the display device 1 , and the TB combination 806 .

The display device 1 is an interface of the man-machine interface, which provides a test window for the tester, and the tester issues a test input command through the display device 1 . The display device 1 is connected to the test simulator 201 , the test simulator 202 , and the TB combination 806 .

The first switch 301 and the second switch 302 are hubs for information exchange of the test platform, providing information exchange and communication between systems. The first switch 301 and the second switch 302 are connected with the test simulator 201, the test simulator 202, the BOK converter 401, the BOK converter 402, the PLC combination 504, the CANNET converter 701, the CANNET converter 702, and the TB combination 806. When testing the external network unit of the LKD2-T3 train control center, the second switch 302 is connected to the Ethernet unit, simulates network communication signals to test the external network unit of the LKD2-T3 train control center, and feeds back information to the test simulator 201 at the same time.

BOK converter 401 and BOK converter 402 are connected to TB combination 804, TB combination 805, and TB combination 806, and are connected to test simulator 201 and test simulator 202 through the first switch 301 to simulate on-site LEU communication and CTC communication. Communication and Ethernet communication are converted to each other.

PLC combination 501 is connected with TB combination 801, PLC combination 502 is connected with TB combination 801 and TB combination 802, PLC combination 503 is connected with TB combination 802, PLC combination 504 is connected with TB combination 803, PLC combination 501, PLC combination 503, PLC combination 503 and PLC combination 504 are serially connected in sequence, and the PLC combination 504 is connected to the first switch 301 to test the input and output unit of the LKD2-T3 train control center by simulating the IO quantity on site, and feed back the test information to the test simulator 201 and the test simulator 202 at the same time .

CANNET converter 701 is connected to TB combination 804, CANNET converter 702 is connected to TB combination 805, simulates the ZPW-2000K frequency shift signal to test the track circuit unit of LKD2-T3 train control center, and feeds back the test information to the test simulator 201, Test Simulator 202 .

The 24V direct current unit 6 converts the AC 220V into a DC 24V power supply, and connects with the PLC combination and the CANNET converter to provide DC24V power for the PLC combination unit and the CANNET converter.

TB combination 801, TB combination 802, TB combination 803, TB combination 804, and TB combination 805 are the test interfaces of this platform, through the platform cable and the input and output driving unit, track circuit unit, LEU of the LKD2-T3 train control center under test The communication units are connected; TB combination 801, TB combination 802, and TB combination 803 pass the analog IO quantity generated by the PLC combination unit to the input and output unit of the LKD2-T3 train control center under test, and return the feedback signal at the same time; TB combination 804 will The analog LEU and CTC signals generated by BOK converter 401 and BOK converter 402 are transmitted to the LEU communication unit of the LKD2-T3 train control center under test, and the feedback signal is returned at the same time; TB combination 805 transmits CANNET converter 701 and CANNET converter The analog ZPW-2000K frequency shift signal generated by 702 is transmitted to the specified circuit communication unit of the LKD2-T3 train control center under test, and the feedback signal is returned at the same time.

TB combination 806 is the AC220 power interface of this platform, which is used for display device 1, test simulator 201, test simulator 202, first switch 301, second switch 302, BOK converter 401, BOK converter 402, 24V direct current unit 6 Provide stable AC220 power supply.

The testing process of the present utility model is specifically as follows: the tester logs in the test simulator 201 and the test simulator 202 respectively through the display device, and after inputting the login password verification, opens the test software on the test simulator 201 and the test simulator 202, and passes through the test interface. Tested operation. During the startup process of the test software, enter the hardware configuration information of the LKD2-T3 train control center under test according to the prompts, and click Test on the interface after the software startup is completed.

The test software on the test simulator 201 sends test information, and the test information is forwarded to the BOK converter 401 and the BOK converter 402 through the first switch 301 through the Ethernet communication mode, and the BOK converter 401 and the BOK converter 402 convert the test information Test the LEU function of the TIU board of the LEU communication unit of the LKD2-T3 train control center and the CTC function of the GS board through the TB combination 804 interface for the 422 communication mode, and collect the output information of the LEU communication unit of the LKD2-T3 train control center, and analyze and test the test software The results are displayed on the test software interface.

The test software on the test simulator 201 sends test information, and the test information is forwarded to the CANNET converter 701 and the CANNET converter 702 through the first switch 301 through the Ethernet communication mode, and the CANNET converter 701 and the CANNET converter 702 convert the test information Test the track circuit communication and encoding function of the TC2 board of the track circuit unit of the LKD2-T3 train control center through the TB combination 805 interface for the CAN communication mode, and retrieve the output information of the track circuit unit of the LKD2-T3 train control center, and analyze the test results by the test software And displayed on the test software interface.

The test software on the test simulator 201 sends test information, and the function of the Ethernet unit of the LKD2-T3 train control center is tested through the second switch 302 through the Ethernet communication mode, and the output information of the Ethernet unit of the LKD2-T3 train control center is picked back, The test software analyzes the test results and displays them on the test software interface.

The test software on the test simulator 202 sends test information, and the test information is forwarded to the PLC combination 504 control module through the first switch 301 through the Ethernet communication mode, and the PLC combination 501, the PLC combination 502, the PLC combination 503, and the PLC combination 504 will test The information is converted into IO output. Through the TB combination 801, TB combination 802, and TB combination 803 interfaces, test the drive and mining functions of the input and output signal unit drive board and acquisition board of the LKD2-T3 train control center, and recover the input and output of the LKD2-T3 train control center. The output information of the letter unit, the test software analyzes the test results and displays them on the test software interface.

During the test, the test software interface displays test information and test progress in real time, including communication channel information and test item information. After the test is completed, the system automatically produces a test report and saves it in the test simulator 201 or test simulator 202.

Claims (7)

1. A kind of railway signal control equipment automation test equipment, comprise the simulation testing machine, gateway device and communication protocol conversion device connected successively, it is characterized in that, also comprise TB terminal block, the two ends of described TB terminal block connect communication protocol respectively Transition device and equipment under test. 2. A kind of railway signal control equipment automatic testing equipment according to claim 1, is characterized in that, described testing equipment also comprises and is used for testing the equipment under test input and output mining drive unit by simulating IO quantity, and will test The information is fed back to the PLC combination device of the simulation test machine, and the PLC combination device is respectively connected with the network management device and the TB terminal block. 3. A kind of railway signal control equipment automatic testing equipment according to claim 2, is characterized in that, described gateway device comprises first switchboard and second switchboard, and described first switchboard is converted with analog testing machine, communication protocol respectively The device is connected with the PLC combination device, one end of the second switch is connected with the analog test machine, and the other end is connected with the Ethernet unit of the device under test. 4. A kind of railway signal control equipment automated testing equipment according to claim 1, is characterized in that, described communication protocol conversion device comprises: BOK converter, one end is connected to the gateway device, and the other end is connected to the LEU communication unit of the device under test through the TB terminal block, which is used to realize the conversion between Ethernet and RS422 communication protocols; CANNET converter, one end is connected to the network management device, and the other end is connected to the track circuit unit of the equipment under test through the TB terminal block, which is used to realize the conversion between Ethernet and CAN communication protocols. 5 . The automated testing equipment for railway signal control equipment according to claim 1 , wherein there are two simulation testing machines in total, and both of the two simulation testing machines are connected to the network management device. 6 . 6. according to a kind of railway signal control equipment automation test equipment described in any one of claims 1-5, it is characterized in that, described test equipment also comprises 24V DC power supply, and this 24V DC power supply is connected with communication protocol conversion device, and Connect with the analog tester and the gateway device through the TB terminal block. 7. The automated testing equipment for railway signal control equipment according to any one of claims 1-5, characterized in that the testing equipment further comprises a display device connected to a simulation testing machine.