CN216696549U - Tester for subway vehicle-mounted VOBC cabinet peripheral device - Google Patents

Abstract

The utility model discloses a tester for peripheral devices of a subway vehicle-mounted VOBC (video audio/video recorder) cabinet, which comprises a tester body, wherein the tester body is provided with a connector, an operation panel, a power module, a relay module and a PLC (programmable logic controller) module, the connector is connected with an electric circuit for train circuit signal transmission, the power module supplies power to the PLC module, the power module is arranged on the operation panel, and a power switch of the operation panel is electrified with the PLC module through the power module: the PLC module collects a starting signal on the operation panel through an interface x0, and drives the relay module to intermittently pull in and control the AR indicator lamp on the train to flicker. The utility model reduces the high occupancy rate of the resources of the test line and the positive line, avoids the accidental faults that the high-frequency faults cannot be realized and the high-frequency faults are difficult to reappear, saves the energy consumption and the labor force, and greatly saves the operation and maintenance cost.

Description

Tester for subway vehicle-mounted VOBC cabinet peripheral device

Technical Field

The utility model relates to the technical field of subway vehicle-mounted signal testing devices, in particular to a tester for a subway vehicle-mounted VOBC cabinet peripheral device.

Background

The fault processing of the signal interface of the current subway train has the following problems:

1. when a train interface fault occurs, the performance of the electric element cannot be verified under the static condition of the train in the warehouse; only a simple circuit continuity test can be performed.

2. In order to better verify the interface fault, a test line and a main line are required to be applied for motor car operation, and due to the fact that the resources of the test line and the main line are scarce, the application coordination process is complex, and multi-department negotiation exists, the fault processing time is prolonged or the equipment is set aside to influence the response mechanism of the normal recovery of the equipment.

3. The test limitation of the test line and the positive line motor car is too large, so that the fault is difficult to recur due to the fact that frequent verification cannot be realized by occasional faults, and the point position of the fault cannot be accurately judged.

4. The interface failure motor car verification can cause the problems that a test line and a positive line have high resource occupancy rate, are not beneficial to the maintenance of trackside equipment, have large power energy consumption, increase the work labor load of maintenance personnel and the like.

Disclosure of Invention

In order to overcome the problems, the utility model aims to provide a tester for the peripheral device of the VOBC cabinet on the subway vehicle, which has the characteristics of reducing a vehicle testing line, having high resource occupancy rate of a positive line, avoiding that accidental faults can not realize high-frequency faults and are difficult to reappear, saving energy consumption and labor force, greatly saving operation and maintenance cost and the like.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a subway on-vehicle VOBC rack peripheral hardware tester, includes the tester body, be provided with connector 5, operation panel 1, power module 2, relay module 3 and PLC module 4 on the tester body, connector 5 links to each other with train circuit signal transmission's electric circuit, power module 2 is the power supply of PLC module 4, and power module 2 sets up on operation panel 1, and 1 switch of operation panel passes through power module 2 and goes up with PLC module 4: the PLC module 4 collects a starting signal on the operation panel 1 through an interface x0, and drives the relay module 3 to intermittently attract and control the AR indicator lamp on the train to flicker.

The connector 5 is a rectangular aviation plug HDD-042-F.

The power module 2 is a 24V power supply.

The PLC module 4 is DVP14SS 211T.

The power supply module 2 comprises a DC24V power supply + end and a DC24V power supply-end, the JK5-2 of the relay module 3 is connected with the DC24V power supply + end, and the JK2-40 of the relay module 3 is connected with the DC24V power supply-end.

The PLC module 4 is provided with an interface X0 and an interface X1, and the JK5-2 of the relay module 3 is communicated with the X0 of the PLC module 4 through a starting button switch;

JK5-2 of the relay module 3 is communicated with JK5-9, and JK5-9 is connected to X1 of the PLC module 4;

JK5-2 of the relay module 3 is communicated with JK2-33, and JK5-2 of the relay module 3 is connected to the + end of a DC24V power supply of the locomotive;

JK2-29 of the relay module 3 is connected with JK2-30 through a retrace operation switch, and JK2-29 is connected to the power supply + end of the locomotive DC 110V.

The utility model has the beneficial effects that:

according to the utility model, the relevant train function verification can be realized in the warehouse by connecting the connector with the train equipment, the tester can simulate the input and output signals interacted between the vehicle VOBC cabinet and the vehicle, and can judge whether the cable conductivity in the test circuit is good, whether the button and the relay component have functional defects or not, and the like, so that the tester is convenient to use, and reduces the cost of manpower and material resources.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic circuit diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to examples.

As shown in fig. 1, a user connects to a train circuit by using a connector 5, operates a power switch of a tester to power on a PLC module 4 of a power module 2, and performs a corresponding verification operation after the power-on start is completed. Taking AR fold-back as an example: the user presses operation panel 1 start button, and start signal is gathered to PLC4, and drive relay module 3 intermittent type actuation control train on AR pilot lamp scintillation, the user presses AR button on the train after, and AR activation signal is gathered to PLC4, and control relay module 3 has inhaled, and AR pilot lamp becomes normally bright state, AR relay inhales on the control train simultaneously. The method can judge whether the cable conductivity in the tested AR turn-back logic circuit is good or not, and whether functional defects or damages exist in corresponding buttons and relay components or not. After the test is finished, the user presses a start button on the operation panel 1 to enable the operation panel to be flicked and disconnected, the PLC4 collects a flicking signal to control the relay 3 in the tester to fall down, and the AR indicator lamp on the train is turned off and the automatic turn-back relay falls down. The closed box body 6 covers the tester with components, so that direct contact between personnel and equipment can be reduced in the testing process, and personal safety is guaranteed.

Firstly, the principle of a tester for peripheral devices of a vehicle-mounted VOBC cabinet (taking AR foldback as an example) is as follows:

and the user connects the connector 5 to the corresponding port of the train, operates a switch button on the tester to perform power-on starting of the power module 2 and the PLC module 4, and performs corresponding operation after the power-on starting is completed. The user presses AR test start button on the operation panel 1, PLC4), collects start signal, and the drive relay 3 intermittent type actuation control train goes up the AR pilot lamp and will twinkle, and after the user pressed AR button on the train, PLC4 collected AR activation signal, and control relay module 3 has inhaled and has kept the normality, and the AR pilot lamp becomes normal bright state AR relay and has inhaled on the train. Can judge whether the cable conductivity in the tested AR turn-back logic circuit is good or not, and whether functional defects exist in a button and a relay component or not are damaged or not

Secondly, a using method of the vehicle-mounted VOBC cabinet peripheral device tester comprises the following steps:

1. and the tester connector row is sequentially connected with the ports of a train JK2, a JK3, a JK4 and a JK 5.

2. And (4) turning on a power switch on the tester, and carrying out test preparation after the power module and the PLC module are started normally. (taking AR reentry as an example)

3. The starting button on the tester is pressed down in a self-locking manner, and the starting indicator lamp is lightened.

The PLC collects a starting signal and controls the intermittent suction of the relay. The AR indicator light blinks.

4. The maintenance personnel press the flashing AR button on the train, and the PLC acquires a pressing signal AR lamp and turns on the lamp normally; at the moment, the PLC outputs 110V voltage to drive the AR relay to suck up, and the train enters an AR mode.

5. After the test is finished, the maintainer presses the switch button on the tester again to bounce off from the lock, the PLC collects signals to control the relay in the tester to fall down, the AR indicator light is turned off, and the AR relay falls down.

6. And (4) closing the tester switch, cutting off the power supply of the train, and disconnecting the corresponding JK connector.

Thirdly, the vehicle-mounted VOBC cabinet peripheral device tester has the structural characteristics that:

1. the tester adopts a 40 × 30 × 16 sealed box body, has attractive appearance, light weight and convenient and quick carrying, and improves the fault treatment efficiency of maintainers.

2. The tester selects a special power supply, can directly convert the 110V of the train into 24V to directly supply power for the equipment, and avoids the safety risk brought to the human body by external power taking.

3. The connector is adopted between the tester and the train circuit, so that direct contact between personnel and equipment can be reduced, and personal safety is guaranteed.

4. The tester can directly drive the button and the relay in the related interface functional link in the library, and can judge whether the cable conductivity in the circuit is good or not and whether functional defects or damages exist in the button and the relay component or not according to the action states of the button and the relay, so that the frequency of motor car verification required by interface faults is reduced, the occupancy rate of a test line and a positive line resource is reduced, the energy consumption and the labor force are saved, and the operation and maintenance cost is greatly saved.

5. The tester has no use limitation from the design point of view, and can be used for driving components in various train electrical schematic diagrams.

As shown in fig. 2:

the action flow comprises the following steps:

after the instrument is started, the 24V power supply of the power supply module 2 is electrified, and the PLC module 4 is electrified.

The starting indicator lamp is lightened by pressing a starting button (self-locking type).

The PLC module 4 collects an X0 starting signal of the operation panel 1 and controls the JA1 of the relay module 3 to be intermittently attracted. Since the contact of JA1 of the relay module 3 controls the AR indicator lamp, the AR indicator lamp blinks.

The automatic turn-back button is connected, the PLC module 4 collects an X1 signal of the operation panel 1, and controls JA1 to suck and JA2 to suck. Since the contact of JA1 of relay module 3 controls the AR indicator light, the AR indicator light is constant; since the contact of JA2 of the relay module 3 controls the auto-retracing relay, the auto-retracing relay is engaged.

When the starting button (self-locking type) pops open, the PLC module 4 acquires that the X0 signal of the operating panel 1 disappears, the JA1 and JA2 of the relay module 3 are controlled to release, the AR indicator light is turned off, and the automatic turn-back relay releases.

The principle is as follows:

start button (self-locking): the starting button is a self-resetting button with a lamp, and power for starting the indicator lamp is supplied by the locomotive operating panel 1 (JK5-2 is the power supply + end of a locomotive DC24V, and JK2-40 is the power supply-end of a locomotive DC 24V). When the start button is pressed, JK5-2 is connected with X0 of PLC module 4, and PLC module 4 can acquire a start signal.

An automatic fold-back button: the automatic turn-back button is a button inside the locomotive, when the automatic turn-back button is connected, JK5-2 and JK5-9 of the relay module 3 are connected, and JK5-9 is connected to X1 of the PLC module 4, so that the automatic turn-back button is pressed down, and the PLC module 4 can acquire an automatic turn-back button connection signal.

JA 1: JA1 is a relay for controlling the AR indicator light, when JA1 is switched on, JK5-2 and JK2-33 of the relay module 3 are switched on, JK5-2 of the relay module 3 is connected to the + end of a DC24V power supply of the locomotive, therefore JA1 is in intermittent suction, and the AR indicator light flickers; JA1 pulls in, AR indicator lamp constant.

JA 2: JA2 is a relay for controlling the automatic turn-back relay, when JA2 is connected, JK2-29 and JK2-30 of the relay module 3 are connected, JK2-29 is connected with the power supply + end of the locomotive DC110V, therefore JA2 is attracted, and the automatic turn-back relay is attracted.

Claims (6)

1. The utility model provides a subway vehicle-mounted VOBC rack peripheral hardware tester, a serial communication port, including the tester body, be provided with connector (5), operation panel (1), power module (2), relay module (3) and PLC module (4) on the tester body, connector (5) link to each other with train signal transmission's electric circuit, power module (2) are PLC module (4) power supply, and power module (2) set up on operation panel (1), and operation panel (1) switch passes through power module (2) and goes up with PLC module (4): the PLC module (4) collects a starting signal on the operation panel (1) through an interface x0, and drives the relay module (3) to intermittently attract and control the AR indicator lamp on the train to flicker.

2. A tester for peripheral devices of VOBC cabinet onboard a subway according to claim 1, wherein said power module (2) is a 24V power supply.

3. A tester for peripheral devices of VOBC cabinet onboard a subway as claimed in claim 1, wherein said PLC module (4) is DVP14SS 211T.

4. A tester for peripheral devices of VOBC cabinet onboard a subway as claimed in claim 1, wherein said power module (2) comprises a DC24V power + terminal and a DC24V power-terminal, and wherein JK5-2 of said relay module (3) is connected to the DC24V power + terminal, and JK2-40 of said relay module (3) is connected to the DC24V power-terminal.

5. The tester for the peripheral device of the VOBC cabinet on the subway vehicle as claimed in claim 1, wherein said PLC module (4) is provided with an interface X0 and an interface X1, and JK5-2 of said relay module (3) is connected with X0 of the PLC module (4) by a start button switch;

JK5-2 of the relay module (3) is communicated with JK5-9, and JK5-9 is connected to X1 of the PLC module (4);

JK5-2 of the relay module (3) is communicated with JK2-33, and JK5-2 of the relay module (3) is connected to the power supply + end of the locomotive DC 24V;

JK2-29 of the relay module (3) is communicated with JK2-30 through a retrace operation switch, and JK2-29 is connected to the power supply + end of the locomotive DC 110V.

6. A tester for peripheral devices of VOBC cabinets on a subway car as claimed in claim 1, wherein said connector (5) is a rectangular aviation plug HDD-042-F.

Images