A train control communication panel test cabinet

Abstract

The present invention discloses a train control communication disk test cabinet, comprising a train control communication disk group box, a CI-TIU communication disk group box, a CI-GS communication disk group box, an interface reverse machine group box and a control unit, wherein the CAN communication card group of the control unit is connected to the interface reverse machine group box, the CI-TIU communication disk group box and the CI-GS communication disk group box are connected to the CAN communication card group of the control unit via the interface reverse machine group box, the train control communication disk group box is connected to the control unit for serial port 422 communication, and the CI-TIU communication disk group box is connected to the LEU electronic unit provided in the load part of the station. The present invention improves the authenticity of test data and the efficiency of test work, designs an integrated train control communication disk test cabinet, reduces the time of manual overlap test conditions, adopts computer test software dynamic pulse square wave control, improves the anti-interference ability of the control circuit and the reverse machine switching accuracy, and improves the work efficiency by 90%-91.4%.

Description

Technical Field

[0001] The invention relates to a testing device, in particular to a train control communication panel testing cabinet. Background Art

[0002] The communication panel is a system equipment of the railway train control center. The CI-TIU communication panel is mainly used for the communication between the LEU electronic unit of the train control center system and the ground transponder of the track section to realize the collection and control of road condition information. The CI-GS communication panel is mainly used for the communication between the train control center system and the ZPW2000 track circuit of the station to realize the collection and control of the station track circuit information. The safety, reliability and stability of the train control communication panel are very important. If quality problems occur, it will cause the communication between the train control center and the dispatching center, frequency-shifted track circuit, active transponder and other equipment to be interrupted, which will seriously affect the punctual operation of the train.

[0003] Functional testing is required before system integration, mainly using manual splicing test circuits. Through on-site investigation and statistics of two communication disks, during the functional test process, manual splicing caused more than 98% of the failures, and the work efficiency was low, which seriously affected the safety and stability of the product and restricted the product debugging cycle. The main prominent problem was that the test data often reported errors, showing communication interruption, CPU address error, CAN communication abnormality, 422 communication abnormality, and repeated tests were more than 2-5 times. After troubleshooting, it was confirmed that the loose connector plug caused poor contact, the board group identification dial switch and the address dial switch, the setting error or poor contact caused the address error. Fault cause analysis, (1) LEU electronic equipment input and output conditions, connected to the LEU communication cable (32 cores) by plugging. Since the LEU communication cable plug has no fixing screws and the sheath is made of polyvinyl chloride hard plastic, when the LEU communication cable (32 cores) is bent, the LEU electronic equipment connector will loosen and have poor contact, causing communication interruption abnormality. (2) There are many disadvantages in manually setting the address code. For the CI-GS communication disk and CI-TIU communication disk, the address code needs to be manually set during the functional test. The two types of board group address codes are the board group identification dip switch (such as the three-digit 101) and the eight-digit address dip switch (such as the eight-digit 01011010). The advantage of the dip switch is that it is small in size and easy to install. The disadvantage is that it is not suitable for frequent dialing. The communication disk functional test needs to complete the address code setting four times. The dip switch is installed on the inner side of the bus board behind the cage. Due to the large size of the dip switch and the large number of groups, the distance from the front panel to the bus board is 370mm. The dip switch cannot be set manually in the cage and can only be set with tools. It is often the case that the dip switch is not in place or the dip switch is set incorrectly, causing the CPU to work incorrectly, resulting in hidden dangers of human failure, thereby affecting the safety and reliability of product performance parameters. (3) There are many test conditions for manual splicing, and the operation is cumbersome and the work efficiency is low. For the functional test of CI-TIU communication disk and CI-GS communication disk, signal cables need to be connected with CANA communication card, CANB communication card, CANC communication card, LEU electronic equipment (cable 1-3), 422-1 serial communication, and 422-2 serial communication. During the test, the cables are manually connected 4-5 times, which is not only cumbersome and time-consuming, but also prone to errors. It also greatly increases the labor intensity of the testers. According to survey statistics, the time for manual splicing test conditions is 35 minutes for CI-GS communication disk and 55 minutes for CI-TIU communication disk, which seriously restricts the progress of product production and needs to be solved urgently on site. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the problem to be solved by the present invention is to provide a communication disk test cabinet that can be controlled, meet the technical requirements of the functional test of CI-TIU communication disk and CI-GS communication disk, and realize the integration of test structure, automation of test function and simplification of process operation.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The present invention discloses a train control communication panel test cabinet, comprising a train control communication panel group box, a CI-TIU communication panel group box, a CI-GS communication panel group box, an interface inverted machine group box and a control unit, wherein the CAN communication card group of the control unit is connected with the interface inverted machine group box, the CI-TIU communication panel group box and the CI-GS communication panel group box are connected with the CAN communication card group of the control unit via the interface inverted machine group box, the train control communication panel group box is connected with the control unit for serial port 422 communication, and the CI-TIU communication panel group box is connected with the LEU electronic unit arranged at the load part of the station.

[0007] The interface reverse machine group box includes an integrated switching circuit, first and second photoelectric couplers and a switching matrix relay group circuit, wherein the first and second photoelectric couplers respectively receive the A machine start pulse signal and the B machine start pulse signal of the control unit, and isolate and transmit them to the input end of the integrated switching circuit, and the output end of the integrated switching circuit is connected to the control end of the switching matrix relay group circuit.

[0008] The integrated switching circuit comprises first to second inverting Schmitt triggers, first to third NAND gates, first to third reverse drivers, first to second Darlington drivers and first to second MOS monitoring circuits, wherein the input end of the first inverting Schmitt trigger receives the start pulse signal of the A machine through the first photoelectric coupler, the output end is connected to an input pin of the second NAND gate through the first MOS monitoring circuit, and the output end of the first NAND gate is connected to an input pin of the third NAND gate; the input end of the second inverting Schmitt trigger receives the start pulse signal of the B machine through the second photoelectric coupler, and the output end is connected to an input pin of the third NAND gate through the second MOS monitoring circuit. The control circuit is connected to the input pin of the third NAND gate, the output end of the third NAND gate is short-circuited with the other pin of the second NAND gate and then connected to an input pin of the first NAND gate, the other pin of the first NAND gate is grounded via a resistor, the output end of the first NAND gate is simultaneously connected to the input ends of the first and second reverse drivers; the output end of the first reverse driver is connected to the input end of the first Darlington driver IC1 via the third reverse driver; the output end of the second reverse driver is directly connected to the input end of the second Darlington driver; the output end sides of the first and second Darlington drivers are respectively connected to the control circuits of the first and second relays.

[0009] The CI-TIU communication disk assembly box includes a single-chip microcomputer timing control circuit, a CI-TIU communication disk circuit board socket and a binary serial divider decoding circuit, wherein the input end of the single-chip microcomputer timing control circuit is connected to the CI-TIU communication disk assembly box panel control button switch, the single-chip microcomputer timing control output end is connected to the Cth group terminal of the CI-TIU communication disk circuit board socket, the input end of the binary serial divider decoding circuit is connected to the CI-TIU communication disk assembly box panel control button, the output end of the binary serial divider decoding circuit is connected to the Eth group terminal of the CI-TIU communication disk circuit board socket, and the A group connection terminal of the CI-TIU communication disk circuit board socket is connected to the LEU electronic unit output end of the station; the CAN communication of the CI-TIU communication disk is connected through the Ath group terminal of the CI-TIU communication disk circuit board socket.

[0010] The CI-GS communication disk assembly box includes an isolation power module, a CI-GS communication disk circuit board socket, a same-phase buffer, the eighth to ninth relays and the third to fourth reverse drivers, wherein the isolation power module DYI provides a 5V working power supply for the CI-GS communication disk circuit board socket, and is respectively connected to the contacts of the first to third relays JA to JC in the interface inverted machine assembly box through the E group wiring terminals of the CI-GS communication disk circuit board socket, and the A group wiring terminals of the CI-GS communication disk circuit board socket are connected to the input end of the same-phase buffer, and the output end of the same-phase buffer is respectively connected to the input end of the first to second reverse drivers, and the output end of the first to second reverse drivers is respectively connected to the control circuit of the eighth to ninth relays, and the middle contact, static contact and dynamic contact of the eighth to ninth relays are connected to the terminal circuit of the CI-GS communication disk circuit board socket.

[0011] The present invention has the following beneficial effects and advantages:

[0012] 1. The present invention greatly improves the authenticity of test data and the efficiency of test work, designs an integrated train control communication panel test cabinet, installs CI-TIU communication panel group box, CI-GS communication panel group box, train control communication panel group box, interface inverted group box, display, 24V power supply, industrial computer mouse and keyboard, etc. in the test cabinet, greatly reducing the time of manual connection test conditions, and connects the station LEU electronic equipment, CAN communication card, and 422 serial communication interface with aviation sockets and cable screws to eliminate hidden dangers of failure caused by poor contact, etc. The connection reliability has reached 100% after on-site verification.

[0013] 2. The present invention adopts computer test software dynamic pulse square wave control to improve the anti-interference ability of the control circuit and the accuracy of the reverse switching, designs an interface reverse integrated circuit, realizes the communication between CI-TIU communication disk group box (CANA, CANB, CANC), CI-GS communication disk group box (CANA, CANB, CANC) and computer test software, realizes automatic control of test items and test data, and saves the cumbersome connection of communication cables and test conditions. The test time is shortened from 35 minutes for the original CI-GS communication disk to 3 minutes, and from 55 minutes for the CI-TIU communication disk to 5 minutes, thereby improving the work efficiency by 90%-91.4%.

[0014] 3. The CI-TIU communication disk group box in the present invention adopts the bus board plug-in connection mode, designs the STC89C51 single-chip microcomputer timing control circuit, and uses the station LEU electronic unit as the test load. It uses the CAN communication mode to communicate with the computer test software (CANA, CANB, CANC) to realize automatic control of test items and accurate test data. In addition, the binary serial divider decoding circuit designed realizes the automatic selection of the board group identification dial and the address dial, replacing the manual setting of the address code. Due to the inadequate position of the dial switch and the wrong setting of the dial switch, the CPU works incorrectly, causing the hidden danger of human failure. The correctness rate is 100% after on-site verification.

[0015] 4. The CI-GS communication disk group box in the present invention adopts a bus board plug-in connection method, and the 5V power supply adopts a SF24S5-100W isolated power supply module. A 422-1, 422-2 communication test condition automatic control circuit composed of a 74HC244 8-way in-phase buffer, a 7406 reverse driver, and an execution TQ2 5V relay is designed. The CAN communication method is used to communicate with the computer test software (CANA, CANB, CANC) to realize automatic control of test items and accurate test data.

[0016] 5. The present invention adopts a display interface operation, which has an intuitive display and simple operation. The test data is saved in word format, and the test data automatic storage and printing function is realized, which replaces manual filling and improves the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cabinet structure of the present invention;

[0018] Figure 2 It is the electrical structure block diagram of the present invention;

[0019] Figure 3 It is the electrical principle block diagram of the present invention;

[0020] Figure 4 This is the electrical principle diagram of the interface inverted unit box in the present invention;

[0021] Figure 5A The electrical schematic diagram of the integrated switching circuit in the present invention (I);

[0022] Figure 5B This is the electrical schematic diagram of the integrated switching circuit in the present invention (II);

[0023] Figure 5C This is the electrical schematic diagram of the integrated switching circuit in the present invention (III);

[0024] Figure 6 This is the electrical schematic diagram of the CI-TIU communication disk test kit in the present invention;

[0025] Figure 7 This is the electrical schematic diagram of the CI-GS communication disk test kit in the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 3 As shown, a train control communication panel test cabinet of the present invention is used to realize automatic testing of electrical performance of CI-TIU communication panel and CI-GS communication panel, including a train control communication panel group box, a CI-TIU communication panel group box, a CI-GS communication panel group box, an interface inverted group box and a control unit, wherein the CAN communication card group of the control unit is connected with the interface inverted group box, the CI-TIU communication panel group box and the CI-GS communication panel group box are connected with the CAN communication card group of the control unit via the interface inverted group box, the train control communication panel group box is connected with the control unit for serial communication, and the CI-TIU communication panel group box is connected with the LEU electronic unit arranged in the load part of the station.

[0028] The present invention is integrally installed in Figure 1 in the cabinet shown.

[0029] like Figure 4 As shown, the interface reverse machine group box includes an integrated switching circuit, the first and second photoelectric couplers GB1-GB2 and a switching matrix relay group circuit, wherein the first and second photoelectric couplers GB1-GB2 receive the A machine start pulse signal and the B machine start pulse signal of the control unit respectively, and transmit them to the input end of the integrated switching circuit in isolation, and the output end of the integrated switching circuit is connected to the control end of the JA-JB relay group circuit. The switching matrix relay group circuit has the first to third JA-JC relay contact groups.

[0030] like Figures 5A to 5CAs shown, the integrated switching circuit includes first to second inverting Schmitt triggers U1 to U2 (the present embodiment uses 74LS14), first to third NAND gates U5-1 to U5-3 (the present embodiment uses 74LS00 2-input four-NAND gate), first to third reverse drivers U6-1~U6-3 (7406 is used in this embodiment), first to second Darlington transistor drivers IC1~IC2 (ULN2803 is used in this embodiment) and first to second MOS monitoring circuits (MAX706C is used in this embodiment), wherein the input end (13-pin) of the first inverting Schmitt trigger U1 receives the start pulse signal of the A machine through the first photocoupler GB1, and the output end is connected to an input pin of the second NAND gate U5-2 through the first MOS monitoring circuit U3, and the output end (6-pin) of the first NAND gate U5-2 is connected to an input pin (12-pin) of the third NAND gate U5-3; the input end (2-pin) of the second inverting Schmitt trigger U2 receives the start pulse signal of the B machine through the second photocoupler GB2, and the output end (1-pin) is connected to the third NAND gate U5-3 through the second MOS monitoring circuit U4 (8-pin) The output end (pin 14) of the third NAND gate U5-3 is short-circuited with another pin (pin 5) of the second NAND gate U5-2 and then connected to an input pin of the first NAND gate U5-1. The other pin of the first NAND gate is grounded via a resistor. The output end (pin 3) of the first NAND gate U5-1 is simultaneously connected to the input ends (pin 2 and pin 11) of the first and second reverse drivers U6-1 and U6-2; the output end (pin 1) of the first reverse driver U6-1 is connected to the input end (pin 1) of the first Darlington driver IC1 via the end (pin 3) of the third reverse driver U6-3; the output end (pin 10) of the second reverse driver U6-2 is directly connected to the input end (pin 1) of the second Darlington driver IC2; the output ends (pin 18) of the first and second Darlington drivers IC1 and IC2 are respectively connected to the control circuits of the first and second relays JA and JB.

[0031] like Figure 6As shown, the CI-TIU communication disk assembly box includes a single-chip microcomputer (STC89C51 is used in this embodiment) timing control circuit, a CI-TIU communication disk circuit board socket JI (the aviation socket CT73B18F-6ZJ1N-01 is used in this embodiment) and a binary serial frequency divider decoding circuit (CD4060 is used in this embodiment), wherein the input end (INT0 pin, INT1 pin) of the single-chip microcomputer timing control circuit is connected to the CI-TIU communication disk assembly box panel control button switch, and the single-chip microcomputer timing control output end is connected to the terminals C2, C4, C6, and C8 of the CI-TIU communication disk circuit board socket JI; the input end (INT0 pin, INT1 pin) of the binary serial frequency divider decoding circuit is connected to the terminal (INT0 pin, INT1 pin) of the single-chip microcomputer timing control circuit. The input end (pin D11 and pin D1) is connected to the control button on the panel of the CI-TIU communication disk group box, the output end of the binary serial divider decoding circuit is connected to the terminals E12, E14, E16, and C20 of the CI-TIU communication disk circuit board socket, and the output end of the LEU electronic unit of the station is connected to the terminals A10 and A12 of the CI-TIU communication disk circuit board socket JI; the CI-TIU communication disk group box (CANA, CANB, CANC) is connected to the contacts JA-8, JB-8, and JC-8 of the first to third relays JA-JC (JDQA is used in this embodiment) in the interface reverse machine group box through the CI-TIU communication disk circuit board socket JI.

[0032] like Figure 7As shown, the CI-GS communication disk assembly box includes an isolation power module DYI (SF24S5-100W is used in this embodiment), a CI-GS communication disk circuit board socket J1 (the aviation socket CT73B18F-6ZJ1N-01 is used in this embodiment), a common-phase buffer U12 (74HC244 8-way common-phase buffer is used in this embodiment), the eighth to ninth relays J8 to J9 (74HC244 8 is used in this embodiment) and the third to fourth reverse drivers U10-1 to U10-2 (7406 is used in this embodiment), wherein the isolation power module DYI provides a 5V working power supply for the CI-GS communication disk circuit board socket J1, and the CI-GS communication disks (CANA, CANB, CANC) are respectively connected to the contacts JA-6, JB-6, and JC-6 of the first to third relays JA to JC in the interface assembly box through the terminals E2, E4, and E6 of the CI-GS communication disk circuit board socket J1. The output of the CI-GS communication disk is connected to the input terminals 2A2, 2A1, 2A4, and 2A3 of the in-phase buffer U12 through the CI-GS communication disk circuit board socket J1 and the bus board sockets A6, A8, A10, and A12. The output terminals 2Y2 and 2Y3 of the in-phase buffer are respectively connected to the input terminals of the third to fourth reverse drivers U10-1 to U10-2, and the output terminals U10-1 and U10-2 of the third to fourth reverse drivers U10-1 to U10-2 are respectively connected to the input terminals of the third to fourth reverse drivers U10-1 to U10-2. , 2 terminals, U10-2, and 4 terminals are respectively connected to the control circuits of the eighth to ninth relays J8 to J9. The middle contacts 3.3V, 3.3V1, 3.3V2, +24V, static contacts J1-C4, 1-C10, 1-C14, 1-C18 and dynamic contacts 1-C2, 1-C8, 1-C12, and 1-C16 of the eighth to ninth relays J8 to J9 are connected to the terminal circuit of the CI-GS communication disk circuit board socket J1.

[0033] The working process and principle of the present invention are as follows:

[0034] 1) Select CI-TIU communication disk or CI-GS communication disk test software through the display interface of the operation control unit;

[0035] 2) When the first photoelectric isolator GB1 of the interface inverted machine box receives the start pulse signal instruction of machine A, it outputs +5V (30mA) through the first inverting Schmitt trigger U1, the first MOS monitoring circuit U3, the second NAND gate U5-2, the third NAND gate U5-3 and the first NAND gate U5-1, the first to second reverse drivers U6-1 to U6-3 7406, and the first Darlington tube driver IC1, driving the first relay JA to be sucked up, and through the relay contacts, the CAN communication card group (CANA, CANB, CANC) of the control unit is respectively connected to the CI-TIU communication disk group box (CANA, CANB, CANC);

[0036] 3) When the second electrical isolator GB2 of the interface inverted machine box receives the B machine start pulse signal instruction, it receives the B machine start pulse signal of the control unit, and drives the second relay JB to be sucked up through the second inverting Schmitt trigger U2, the second MOS monitoring circuit U4, the third NAND gate U5-3, the first NAND gate U5-1, the second reverse driver U6-2, and the second Darlington tube driver IC2 output +5V (30mA). Through the relay contacts, the CAN communication card group (CANA, CANB, CANC) of the control unit is respectively connected to the CI-GS communication disk group box (CANA, CANB, CANC);

[0037] 4) After the interface inverted assembly box selects the CI-TIU communication disk assembly box, press the INT0 and INT1 control switches of the single-chip microcomputer timing control circuit, and the single-chip microcomputer timing inputs the timing control test item work instruction to the CI-TIU communication disk assembly box through the JICI-TIU communication disk circuit board socket, sets the eight-bit address code as required, and communicates through CAN communication (CANA, CANB, CANC), and automatically generates a test report with the CI-TIU communication disk assembly box test data and test status;

[0038] 5) After the interface inverted group box selects the CI-GS communication disk group box, turn on the isolation power module switch, and select the 422-1 serial communication and 422-2 serial communication test items through the display interface of the CI-GS communication disk test software of the operation control unit. Through the 422-1 serial communication and 422-2 serial communication test condition automatic control circuit composed of the in-phase buffer U12, the first and second reverse drivers U10-1, U10-2 and the execution relay (i.e., the eighth to ninth relays J8 to J9), input the timing control test item work instructions to the CI-GS communication disk group box, and automatically generate a test report with the CI-GS communication disk group box test data and test status through CAN communication (CANA, CANB, CANC);

[0039] 6) After the test project is completed, scan the code with a barcode scanner and save the test data in word format to realize automatic storage, printing and query functions of the test data.

[0040] The present invention is suitable for the electrical performance detection of LKD2-T2 type train control center, CI-TIU communication panel box, and CI-GS communication panel box, and has the function of automatic communication conversion of the panel. The cabinet spare communication unit box can be used for software identification and current detection of three communication panels: CI-TIU, CI-GS, and CI-TC2.

[0041] The operation process of the train control communication panel test cabinet is as follows:

[0042] A) Turn on the two air switches at the back of the cabinet and the K1 switch on the power control panel (which controls the cabinet AC 220V switch and has a display function). The indicator light should be on, indicating that the cabinet has been input with 220V AC power. At the same time, turn on the power supply (providing 24V DC voltage as the working power supply for the four group boxes). The digital voltmeter shows that the voltage is within the range of 24V±0.5;

[0043] B) Start the industrial computer of the control unit, enter the power-on password to enter the test display interface, and select the test program;

[0044] C) CI-TIU communication tray group test:

[0045] C1) Reference voltage test

[0046] The control unit selects the CI-TIU communication disk test software, turns on the interface and turns on the K15 switch for the power supply of the group box, the D3 indicator light is on, and the A machine light is on, indicating that the CI-TIU communication disk group box is connected to the industrial computer, insert the CI-TIU communication disk into the test port, turn on the K8 switch for the power supply of the CI-TIU communication disk group box, and the D7 indicator light of the CI-TIU communication disk group box should be on. Use a multimeter to measure the input voltage of 24V±0.1 and the reference voltage of 14 test points. The standard refers to the technical requirements (the 5V item retains two decimal places, and the rest retains the last three places);

[0047] C2) Indicator light display test

[0048] Turn on the CI-TIU communication panel assembly box power supply K8 switch, and the CI-TIU communication panel indicator light will light up. Set the eight-digit address code, and then observe the CI-TIU communication panel indicator light, which should meet the product technical requirements;

[0049] C3) Communication test

[0050] Select the control unit test software interface, set the eight-bit address code as required, and the test method shall be carried out according to the product technical conditions;

[0051] D) CI-GS communication tray test:

[0052] D1) Reference voltage test

[0053] The control unit selects the CI-GS communication disk test software, turns on the interface and reverses the group box power supply K15 switch, the D3 indicator light is on, and the B machine light is on, indicating that the CI-GS communication disk group box is connected to the industrial computer, and the CI-GS communication disk is input into the test port. Turn on the CI-GS communication disk group box power supply K17 switch, and the indicator light D21 should be on. The multimeter measurement test should have an input voltage of 24V±0.1. Turn on the CI-GS communication disk group box switch, and use a digital multimeter to measure the reference voltage of the 6 test points of the CI-GS communication disk. Refer to the technical requirements of the standard (retain two decimal places for the 5V item and retain the last three places for the rest).

[0054] D2) Communication function test and indicator light display

[0055] Start the test software on the industrial computer, click to connect the system, click the start test button after the connection is successful, enter the CI-GS communication disk group box function test interface, and observe the CI-GS communication disk indicator light.

[0056] D3) After the test is completed, the software automatically enters the report generation interface, and its operation method is carried out according to the product test technical conditions.

[0057] The interface reversing box is used for the conversion of various CAN communication, parallel port cables and industrial computers in CI-TIU communication box and CI-GS communication box.

[0058] The present invention greatly improves the authenticity of test data and the efficiency of test work. The integrated train control communication panel test cabinet is designed. The LEU electronic equipment, CAN communication card, and 422 serial communication interface are connected by aviation sockets and fixed by cable screws to prevent hidden faults caused by poor contact, etc. The connection reliability is 100% after field verification. The test software controls the interface to switch back and forth, realizes the automatic switching of various communication cables and test conditions, saves the tedious connection of communication cables and test conditions, and shortens the test time from 35 minutes of the original CI-GS communication panel to 3 minutes, and from 55 minutes of the CI-TIU communication panel to 5 minutes, thereby improving the work efficiency by 90%-91.4%. The CI-TIU communication panel group box, the CI-GS communication panel group box, and the train control communication group box are composed of a decoding integrated circuit control board and a bus board, realize the automatic selection of the panel group identification dial code and the address dial code, and replace the manual setting of the address code. The CPU works incorrectly due to the inadequate position of the dial switch and the wrong setting of the dial switch, resulting in the hidden danger of human faults. The correctness rate is 100% after field verification. The test data is saved in word format, and the test data can be automatically stored and printed, replacing manual filling and improving the accuracy of the test data.

Claims

1. A train control communication panel test cabinet, characterized in that: It includes a train control communication panel group box, a CI-TIU communication panel group box, a CI-GS communication panel group box, an interface inverting group box and a control unit, wherein the CAN communication card group of the control unit is connected to the interface inverting group box, the CI-TIU communication panel group box and the CI-GS communication panel group box are connected to the CAN communication card group of the control unit via the interface inverting group box, the train control communication panel group box is connected to the control unit through a serial port 422 communication, and the CI-TIU communication panel group box is connected to the LEU electronic unit located in the load part of the station; The CI-GS communication disk assembly box includes an isolation power module, a CI-GS communication disk circuit board socket, a same-phase buffer, the eighth to ninth relays and the third to fourth reverse drivers, wherein the isolation power module DYI provides a 5V working power supply for the CI-GS communication disk circuit board socket, and is respectively connected to the contacts of the first to third relays JA~JC in the interface inverting assembly box through the E group wiring terminals of the CI-GS communication disk circuit board socket, and the A group wiring terminals of the CI-GS communication disk circuit board socket are connected to the input end of the same-phase buffer, and the output end of the same-phase buffer is respectively connected to the input end of the first to second reverse drivers, and the output end of the first to second reverse drivers is respectively connected to the control circuit of the eighth to ninth relays, and the middle contact, static contact and dynamic contact of the eighth to ninth relays are connected to the terminal circuit of the CI-GS communication disk circuit board socket.

2. The train control communication panel test cabinet according to claim 1, characterized in that: The interface reverse machine group box includes an integrated switching circuit, first and second photoelectric couplers and a switching matrix relay group circuit, wherein the first and second photoelectric couplers respectively receive the A machine start pulse signal and the B machine start pulse signal of the control unit, and transmit them to the input end of the integrated switching circuit in isolation, and the output end of the integrated switching circuit is connected to the control end of the switching matrix relay group circuit.

3. The train control communication panel test cabinet according to claim 2, characterized in that: The integrated switching circuit comprises first and second inverting Schmitt triggers, first and third NAND gates, first and third reverse drivers, first and second Darlington transistor drivers and first and second MOS monitoring circuits, wherein the input end of the first inverting Schmitt trigger receives the A machine start pulse signal through the first photocoupler, the output end is connected to an input pin of the second NAND gate through the first MOS monitoring circuit, and the output end of the first NAND gate is connected to an input pin of the third NAND gate; The input end of the second inverting Schmitt trigger receives the start pulse signal of the B machine through the second photocoupler, and the output end is connected to the input pin of the third NAND gate through the second MOS monitoring circuit. The output end of the third NAND gate is short-circuited with the other pin of the second NAND gate and then connected to an input pin of the first NAND gate. The other pin of the first NAND gate is grounded through a resistor. The output end of the first NAND gate is simultaneously connected to the input ends of the first and second reverse drivers; the output end of the first reverse driver is connected to the input end of the first Darlington driver IC1 through the third reverse driver; the output end of the second reverse driver is directly connected to the input end of the second Darlington driver; the output end sides of the first and second Darlington drivers are respectively connected to the control circuits of the first and second relays.

4. The train control communication panel test cabinet according to claim 1, characterized in that: The CI-TIU communication disk assembly box includes a single-chip timing control circuit, a CI-TIU communication disk circuit board socket and a binary serial divider decoding circuit, wherein the input end of the single-chip timing control circuit is connected to the CI-TIU communication disk assembly box panel control button switch, the single-chip timing control output end is connected to the Cth group terminal of the CI-TIU communication disk circuit board socket, the input end of the binary serial divider decoding circuit is connected to the CI-TIU communication disk assembly box panel control button, the output end of the binary serial divider decoding circuit is connected to the Eth group terminal of the CI-TIU communication disk circuit board socket, the A group connection terminal of the CI-TIU communication disk circuit board socket is connected to the output end of the LEU electronic unit of the station; the CAN communication of the CI-TIU communication disk is connected through the Ath group terminal of the CI-TIU communication disk circuit board socket.

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