Motor train unit interconnection and intercommunication test system

Abstract

The utility model discloses a motor train unit interconnection and intercommunication test system, which comprises a touch screen PLC all-in-one machine, a stabilized voltage supply module, an alarm, a vehicle door controller, a vehicle body safety loop, a centralized control lamp and an electromagnetic valve controller, and is characterized in that the touch screen PLC all-in-one machine comprises a PLC controller and a touch screen which are integrated into a whole; the vehicle door control comprises left enabling, right enabling, a left door switch, a right door switch and a door closing switch; the vehicle body safety loop comprises a vehicle door safety loop relay KM1, a fire safety loop relay KM2, a brake safety loop relay KM3 and an axle alarm safety loop relay KM4, and the centralized control lamp comprises a centralized control half lamp and a centralized control full lamp; the electromagnetic valve control comprises a brake electromagnetic valve, a release electromagnetic valve, a pressure maintaining electromagnetic valve and an emergency electromagnetic valve; according to the utility model, the problem that a single-train communication test cannot be carried out when the CR200J motor train unit is subjected to D3 maintenance is solved, the working efficiency of maintenance personnel is improved, and the safe and stable operation of the train is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of EMU maintenance, in particular to an EMU interconnection and intercommunication testing system. Background Art

[0002] After a certain period of operation, when the CR200J EMU enters the depot for D3 maintenance, the locomotive and each carriage are in a separated state. The existing test equipment cannot perform power-on tests on the door control, safety loop, centralized control lights and solenoid valves of a single carriage. As a result, the communication system of the CR200J EMU cannot be effectively tested during the D3 maintenance. The communication test of each carriage can only be carried out by connecting the locomotive and debugging the whole vehicle at a later stage. Through the analysis of the current status of the CR200J EMU communication system test, in order to ensure that the maintenance personnel complete the test requirements of the communication system of each single carriage during the D3 maintenance of the carriage and ensure the safety of the vehicle operation, it is urgent to design an EMU interoperability test system that can perform networking tests on single carriages. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the utility model provides an EMU interconnection and interoperability testing system.

[0004] The technical solution of the utility model to solve the above problems is:

[0005] The EMU interoperability test system includes a touch screen PLC all-in-one machine, a voltage-stabilized power supply module for converting the DC110V power supply of the car body into DC24V to power the touch screen PLC all-in-one machine, an alarm, door control, car body safety loop, centralized control lights and solenoid valve control.

[0006] The touch screen PLC all-in-one machine includes an integrated PLC controller and touch screen;

[0007] Door control includes left enable, right enable, left door switch, right door switch and door close switch;

[0008] The vehicle body safety loop includes the door safety loop relay KM1, the fire safety loop relay KM2, the brake safety loop relay KM3 and the axle alarm safety loop relay KM4.

[0009] Centrally controlled lights include centrally controlled half lights and centrally controlled full lights;

[0010] Solenoid valve control includes brake solenoid valve, relief solenoid valve, pressure holding solenoid valve and emergency solenoid valve;

[0011] The Y4 end of the PLC controller is connected to the left enable, the Y5 end is connected to the right enable, the Y6 end is connected to the left door switch, the Y7 end is connected to the right door switch, the Y10 end is connected to the door closing switch, the Y11 end is connected to the centralized control half light, the Y12 end is connected to the centralized control full light, the Y13 end is connected to the alarm, the Y20 end is connected to the brake solenoid valve, the Y21 end is connected to the relief solenoid valve, the Y22 end is connected to the pressure holding solenoid valve, and the Y23 end is connected to the emergency solenoid valve.

[0012] The other ends of the left enable, right enable, left door switch, right door switch, door closing switch, centralized half light, centralized full light, alarm, brake solenoid valve, relief solenoid valve, pressure holding solenoid valve, and emergency solenoid valve are all connected to the negative pole of the DC110V power supply of the vehicle body. The positive pole of the DC110V power supply of the vehicle body is connected to the COM2, COM3, and COM5 terminals of the PLC controller.

[0013] One end of the coils of the door safety loop relay KM1, fire safety loop relay KM2, brake safety loop relay KM3, and relay shaft alarm safety loop relay KM4 are connected to the Y14 to Y17 terminals of the PLC controller respectively. The other ends of the coils of the door safety loop relay KM1, fire safety loop relay KM2, brake safety loop relay KM3, and relay shaft alarm safety loop relay KM4 are connected in parallel to the negative pole of DC24V, and the positive pole of DC24V is connected to the COM4 terminal of the PLC controller.

[0014] One end of the normally open contacts of the door safety loop relay KM1, the fire safety loop relay KM2, the brake safety loop relay KM3 and the relay shaft alarm safety loop relay KM4 are respectively connected to the X0~X3 terminals of the PLC controller, and the other ends of the normally open contacts of the door safety loop relay KM1, the fire safety loop relay KM2, the brake safety loop relay KM3 and the relay shaft alarm safety loop relay KM4 are connected in parallel to the DC+ terminal of the PLC controller, and the DC- terminal of the PLC controller is connected to the com terminal.

[0015] Furthermore, the model of the touch screen PLC all-in-one machine is MM-40MR-12MT-700-FX-A.

[0016] The touch screen operation of the utility model is easy and simple to use, and is convenient for maintenance personnel to use on site. It only takes about 12 minutes to complete the full-function test of a single CR200J EMU carriage under the condition of no fault. Compared with the test that can only be performed through the main control terminal operation in the driver's cab of the entire EMU, the test time is greatly shortened, and the problem of being unable to perform single-car communication test when the CR200J EMU undergoes D3 maintenance is successfully solved, thereby improving the work efficiency of maintenance personnel and ensuring the safe and stable operation of the train. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is the circuit schematic diagram of the utility model;

[0018] Figure 2 This is the circuit diagram of the utility model;

[0019] Figure 3 This is the circuit diagram of the voltage-stabilized power supply module;

[0020] In the figure: touch screen PLC all-in-one machine 1, vehicle body DC110V power supply 2, voltage-stabilized power supply module 3, alarm 4, door control 5, vehicle body safety loop 6, centralized control light 7, solenoid valve control 8, left enable 51, right enable 52, left door switch 53, right door switch 54, door closing switch 55, centralized control half light 71, centralized control full light 72, brake solenoid valve 81, relief solenoid valve 82, pressure holding solenoid valve 83, emergency solenoid valve 84, vehicle door safety loop relay KM1, fire safety loop relay KM2, brake safety loop relay KM3, axle alarm safety loop relay KM4. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0022] Example 1, see Figure 1 — Figure 3 As shown, the EMU interoperability test system includes a touch screen PLC all-in-one machine 1, a voltage-stabilized power supply module 3 for converting the car body DC110V power supply 2 into DC24V to power the touch screen PLC all-in-one machine 1, an alarm 4, a door control 5, a car body safety loop 6, a centralized control light 7, and a solenoid valve control 8.

[0023] The touch screen PLC all-in-one machine 1 includes an integrated PLC controller and a touch screen;

[0024] The door control 5 includes a left enable 51, a right enable 52, a left door switch 53, a right door switch 54 and a door closing switch 55;

[0025] The vehicle body safety loop 6 includes the door safety loop relay KM1, the fire safety loop relay KM2, the brake safety loop relay KM3 and the axle alarm safety loop relay KM4.

[0026] The centrally controlled lamp 7 includes a centrally controlled half lamp 71 and a centrally controlled full lamp 72;

[0027] The solenoid valve control 8 includes a brake solenoid valve 81, a relief solenoid valve 82, a pressure-maintaining solenoid valve 83 and an emergency solenoid valve 84;

[0028] The Y4 end of the PLC controller is connected to the left enable 51, the Y5 end is connected to the right enable 52, the Y6 end is connected to the left door switch 53, the Y7 end is connected to the right door switch 54, the Y10 end is connected to the door closing switch 55, the Y11 end is connected to the centralized control half light 71, the Y12 end is connected to the centralized control full light 72, the Y13 end is connected to the alarm 4, the Y20 end is connected to the brake solenoid valve 81, the Y21 end is connected to the relief solenoid valve 82, the Y22 end is connected to the pressure holding solenoid valve 83, and the Y23 end is connected to the emergency solenoid valve 84.

[0029] The other ends of the left enable 51, right enable 52, left door switch 53, right door switch 54, door closing switch 55, centralized control half light 71, centralized control full light 72, alarm 4, brake solenoid valve 81, relief solenoid valve 82, pressure holding solenoid valve 83, and emergency solenoid valve 84 are all connected to the negative pole of the DC110V power supply 2 of the vehicle body. The positive pole of the DC110V power supply 2 of the vehicle body is connected to the COM2, COM3, and COM5 terminals of the PLC controller.

[0030] One end of the coils of the door safety loop relay KM1, fire safety loop relay KM2, brake safety loop relay KM3, and relay shaft alarm safety loop relay KM4 are connected to the Y14 to Y17 terminals of the PLC controller respectively. The other ends of the coils of the door safety loop relay KM1, fire safety loop relay KM2, brake safety loop relay KM3, and relay shaft alarm safety loop relay KM4 are connected in parallel to the negative pole of DC24V, and the positive pole of DC24V is connected to the COM4 terminal of the PLC controller.

[0031] One end of the normally open contacts of the door safety loop relay KM1, the fire safety loop relay KM2, the brake safety loop relay KM3 and the relay shaft alarm safety loop relay KM4 are respectively connected to the X0~X3 terminals of the PLC controller, and the other ends of the normally open contacts of the door safety loop relay KM1, the fire safety loop relay KM2, the brake safety loop relay KM3 and the relay shaft alarm safety loop relay KM4 are connected in parallel to the DC+ terminal of the PLC controller, and the DC- terminal of the PLC controller is connected to the com terminal.

[0032] The control selection of this utility model is mainly considered from the following four aspects:

[0033] 1. Traditional control methods often use push-button starters, followed by relays and contactors to complete functions. These devices not only have numerous external control buttons and internal components, but also complex wiring. Long-term use can easily lead to malfunctions, making them extremely difficult to locate and replace. Furthermore, functional expansion and upgrades are cumbersome. The product itself must be lightweight and convenient, with a simple and neat appearance, clear internal control logic, simple circuitry, and easy to upgrade and maintain later. Considering these factors, the use of a PLC + touch screen can simultaneously meet these requirements. PLC + touch screen control primarily uses the touch screen's on-off virtual buttons to control the PLC's internal relays to achieve corresponding actions. This results in simple circuitry, clear logic, and easy upgrades and maintenance. While PLC + touch screen control can meet circuit requirements, the on-site device must be small, lightweight, easy to install, and have a simple appearance.

[0034] 2. The font size of the screen display should not be too small. Choose a 7-inch TFT color screen with clear images, realistic colors, multi-touch screen, sensitive contacts, etc., which will not easily jam during use.

[0035] 3. To meet the functional design requirements, the PLC requires 36 I / O control input and output points, and several redundant points are required. Taking all the above into consideration, the domestically produced Zhongda Youkong, model MM-40MR-12MT-700-FX-A touch screen PLC all-in-one machine 1 is selected to complete the functional control.

[0036] 4. The power selection device is not suitable for using an external power supply. Considering that if an external power supply is used, if a fault occurs in the test device, it is easy for the power to be transmitted to the car, causing damage to the equipment inside the car and preventing the fault from escalating. Since the car body DC110V power supply 2 (carriage end communication interface) can directly output DC110V power, the DC110V power supply 2 of the car body can be converted to DC24V through the voltage stabilizer power supply module 3.

[0037] The utility model converts the control command from the touch screen into the corresponding control through the PLC controller, controls the corresponding output end to conduct, thereby controlling the corresponding equipment to perform the corresponding action to complete various functional tests.

[0038] Taking the left door opening test as an example, virtual buttons for controlling the Y4 and Y6 terminals are set on the touch screen, which are respectively used to control the conduction between the Y4 and Y6 terminals of the PLC and the com2 terminal. Press the virtual button for controlling the Y4 terminal on the touch screen to connect the Y4 terminal with the com2 terminal, close the left enable 51, and provide an enable signal for the door action. Then press the virtual button for controlling the Y6 terminal on the touch screen to connect the Y6 terminal with the com2 terminal, close the left door switch 53, and the left door will move.

[0039] In the present invention, when the DC110V power supply 2 of the vehicle body is connected, the voltage-stabilized power supply module 3 converts the DC110V into DC24V to power the touch screen PLC all-in-one 1. When the virtual button of the touch screen of the corresponding safety loop is pressed or there is an input signal between X0-X3, the touch screen PLC all-in-one 1 can detect the corresponding signal; taking the car door safety loop as an example, press the virtual button that controls the Y14 end on the touch screen to connect the Y14 end with the com4 end, and then control the left door or the right door to open, and then the alarm 4 will alarm to prompt that the operation is completed.

[0040] To test the three functions of door control 5, solenoid valve control 8 and centralized control light 7, the output common terminal of the PLC needs to be connected to a DC110V+ voltage signal. As long as the corresponding output terminal light is on, it means that there is an output signal at that terminal, which will trigger the corresponding functional action. To test the vehicle body safety loop 6, both the input and output common terminals of the PLC need to be connected to a DC24V power supply. When the virtual button of one of the safety loops is pressed, when the corresponding safety loop of the vehicle body is fed back, the switch signal will be input to the PLC input port, and the alarm 4 will sound, indicating that the action is completed.

[0041] The touch screen PLC all-in-one machine 1 is the core component of the test system. The I / O output point circuit design of the PLC is completed according to the definition diagram of the car end communication interface. The door control 5, solenoid valve control 8, and centralized control light 7 are all given a DC110V+ voltage signal by the corresponding terminal of the car body interface, thereby generating corresponding actions; for example, a DC110V+ voltage signal is given to the centralized control half-light terminal, and the control Y10 terminal and com3 terminal are connected, then half of the light is on.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0043] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. EMU interoperability test system, characterized by: It includes a touch screen PLC all-in-one machine (1), a voltage-stabilized power supply module (3) for converting a vehicle body DC110V power supply (2) into DC24V to power the touch screen PLC all-in-one machine (1), an alarm (4), a vehicle door control (5), a vehicle body safety loop (6), a centralized control light (7) and a solenoid valve control (8). The touch screen PLC all-in-one machine (1) includes an integrated PLC controller and a touch screen; The door control (5) includes a left enable (51), a right enable (52), a left door switch (53), a right door switch (54) and a door closing switch (55); The vehicle body safety loop (6) includes the door safety loop relay KM1, the fire safety loop relay KM2, the brake safety loop relay KM3 and the axle alarm safety loop relay KM4. The centrally controlled lamp (7) includes a centrally controlled half lamp (71) and a centrally controlled full lamp (72); The solenoid valve control (8) includes a brake solenoid valve (81), a relief solenoid valve (82), a pressure-maintaining solenoid valve (83) and an emergency solenoid valve (84); The Y4 end of the PLC controller is connected to the left enable (51), the Y5 end is connected to the right enable (52), the Y6 end is connected to the left door switch (53), the Y7 end is connected to the right door switch (54), the Y10 end is connected to the door closing switch (55), the Y11 end is connected to the centralized control half light (71), the Y12 end is connected to the centralized control full light (72), the Y13 end is connected to the alarm (4), the Y20 end is connected to the brake solenoid valve (81), the Y21 end is connected to the relief solenoid valve (82), the Y22 end is connected to the pressure holding solenoid valve (83), and the Y23 end is connected to the emergency solenoid valve (84). The other ends of the left enable (51), right enable (52), left door switch (53), right door switch (54), door closing switch (55), centralized half light (71), centralized full light (72), alarm (4), brake solenoid valve (81), relief solenoid valve (82), pressure holding solenoid valve (83), and emergency solenoid valve (84) are all connected to the negative pole of the DC110V power supply (2) of the vehicle body, and the positive pole of the DC110V power supply (2) of the vehicle body is connected to the COM2 terminal, COM3 terminal, and COM5 terminal of the PLC controller; One end of the coils of the door safety loop relay KM1, fire safety loop relay KM2, brake safety loop relay KM3, and relay shaft alarm safety loop relay KM4 are connected to the Y14 to Y17 terminals of the PLC controller respectively. The other ends of the coils of the door safety loop relay KM1, fire safety loop relay KM2, brake safety loop relay KM3, and relay shaft alarm safety loop relay KM4 are connected in parallel to the negative pole of DC24V, and the positive pole of DC24V is connected to the COM4 terminal of the PLC controller. One end of the normally open contacts of the door safety loop relay KM1, the fire safety loop relay KM2, the brake safety loop relay KM3 and the relay shaft alarm safety loop relay KM4 are respectively connected to the X0~X3 terminals of the PLC controller, and the other ends of the normally open contacts of the door safety loop relay KM1, the fire safety loop relay KM2, the brake safety loop relay KM3 and the relay shaft alarm safety loop relay KM4 are connected in parallel to the DC+ terminal of the PLC controller, and the DC- terminal of the PLC controller is connected to the com terminal.

2. The EMU interoperability test system according to claim 1, characterized in that: The model of the touch screen PLC all-in-one machine (1) is MM-40MR-12MT-700-FX-A.

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