CN211653107U

CN211653107U - Test bench for testing 52-51 connecting line composition in centralized monitoring equipment

Info

Publication number: CN211653107U
Application number: CN201922283238.0U
Authority: CN
Inventors: 苏浩杰; 李璟; 金龙; 陈新; 顾春生
Original assignee: Tianjin Railway Signal Co Ltd
Current assignee: Tianjin Railway Signal Co Ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-10-09
Anticipated expiration: 2029-12-18

Abstract

The utility model provides a testboard for testing 52-51 connecting wire among the centralized monitoring equipment is mainly applicable to the test of 52-51 connecting wire among the centralized monitoring equipment. An AC220V power supply is provided from the outside, enters the breaker through a terminal, and controls the on-off of a switch power supply, a PLC module, a DI/DO module, a touch screen and the like through the breaker; the DI module provides 51 switching value nodes for 52-51 connecting lines; the DO module drives the 24V direct current relay to be switched on and off; the switching power supply is used for providing power supply for the direct current relay; the touch screen is used for displaying the test result by an upper computer. The test bench is convenient to operate and observe, can improve the test efficiency of the 52-51 connecting wires in the centralized monitoring equipment, reduces the production cost and eliminates potential safety hazards.

Description

Test bench for testing 52-51 connecting line composition in centralized monitoring equipment

Technical Field

The utility model belongs to railway signal test field especially relates to a testboard that is used for testing centralized monitoring equipment 52-51 connecting wire.

Background

In recent years, railway electronic products are developed vigorously, the yield of centralized monitoring equipment produced by companies is increased continuously, and 52-51 connecting wires are used as important parts in the centralized monitoring equipment, so that the original testing efficiency is low, the testing time is long, errors are easy to occur, and the production progress of the products is influenced. Therefore, it is urgent to design a testing platform for 52-51 connecting wires to improve the testing efficiency of 52-51 connecting wires.

Disclosure of Invention

In view of this, the present invention is directed to a testing platform for testing 52-51 connection lines in centralized monitoring equipment, so as to improve the testing efficiency of 52-51 connection lines and facilitate operation and observation.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a test bench for testing the combination of 52-51 connecting wires in centralized monitoring equipment comprises a box body and electric elements arranged on the box body; the electric elements comprise a 24V switching power supply, 20 relays KA1-KA20, a PLC, a touch screen and a circuit breaker QF1,

the power supply is connected with an external power supply through a wiring terminal, the other end of the wiring terminal is connected with a PLC power supply module of the PLC and a 24V switching power supply through a breaker QF1, and the output end of the PLC power supply module is connected with a CPU module and a DI/DO module of the PLC; the CPU module is in signal connection with the touch screen through an RS232 serial port; the 24V switch power supply provides power for the relay, and the on-off and time delay of the relay are controlled by the CPU module;

the system comprises relays KA1-KA 4 and relays KA 5-KA 20, wherein 1 group of normally open nodes of the relays are connected in series with 3 groups of normally open nodes of the relays KA1-KA 4 in a combined mode, a DO module of the PLC controls the output of the relays KA1-KA20, the normally open nodes are switched on and off and combined into 51 switching values due to the output of the relays, and a DI module of the PLC is used for collecting the states of the 51 switching values.

Furthermore, four corners of the bottom of the box body are provided with universal casters, and the casters have a braking function and can conveniently fix or move the test board.

Compared with the prior art, the utility model discloses following advantage has:

the utility model provides a testboard convenient to operation and observation can audio-visually display 51 lines wrong welding position in the test screen, can embody operator, inspector directly perceivedly, 52-51 connecting wire lot number, has improved the efficiency of software testing of 52-51 connecting wire, reduces manufacturing cost, eliminates the potential safety hazard.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a partial block diagram of a 52-51 connecting wire according to an embodiment of the present invention;

fig. 2 is a schematic block diagram of a test board according to an embodiment of the present invention;

fig. 3 is a power supply circuit diagram of the test board according to the embodiment of the present invention;

fig. 4 is a back view of the test board according to the embodiment of the present invention.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A test station for testing 52-51 connection lines in centralized monitoring equipment, as shown in fig. 2 to 4, for testing the connection condition of 51 lines of the 52-51 connection lines, comprising a box body and electric elements mounted thereon; the electric elements comprise a 24V switching power supply, 20 relays KA1-KA20, a PLC, a touch screen and a circuit breaker QF1,

as shown in fig. 3, an external power supply is connected through a connection terminal, the other end of the connection terminal is connected with a PLC power module of the PLC and a 24V switching power supply through a breaker QF1, and the output end of the PLC power module is connected with a CPU module and a DI/DO module of the PLC; the CPU module is in signal connection with the touch screen through an RS232 serial port; the 24V switch power supply provides power for the relay, the DI/DO module is electrically connected with the relay, and the on-off and time delay of the relay are controlled by the CPU module;

The PLC power supply module provides power for the CPU module and the DI/DO module, the CPU module is connected with the touch screen for program transmission, and the touch screen provides PLC function display and operation; the 24V switching power supply is used for providing a 24V power supply of the relay; the test bench is controlled to be powered on by the on-off of a breaker QF 1.

The tested equipment consists of 52-51 connecting wires, as shown in fig. 1, 51 wires are connected through a binding post and double rows of pins, and corresponding wiring sequence is provided.

Four corners at the bottom of the cabinet are provided with universal casters, and the casters have a braking function and can conveniently fix or move the test board.

An upper computer program runs in the touch screen to provide functions of touch screen display and the like; and the CPU module runs a lower computer program to control the on-off and time delay of the relay. Utilize the utility model discloses testboard test 52-51 connecting wire's test procedure as follows:

(1) closing the circuit breaker QF1 of the test stand;

(2) the upper computer touch screen automatically enters a test board interface after being electrified, and inputs information such as workers, numbers, inspectors and the like;

(3) clicking a test starting button in the touch screen, sequentially lighting 51 groups of indication lamps in the touch screen interface, simultaneously sequentially sucking up relays KA1-KA20, and if the wiring of a connecting line of tested equipment 52-51 is correct, sequentially displaying the 51 groups of indication lamps as green; if the tested equipment 52-51 has a wrong line in the connecting lines, two ends of the wrong line are displayed on the touch screen; if the welding wire is leaked in the connecting wire of the tested equipment 52-51, the position of the welding wire is displayed on the touch screen;

(4) clicking a pause button in the touch screen, and stopping the test of the alignment position by the interface; clicking a continue button in the touch screen, and continuing the line comparison process at the position of the pause button by the interface; clicking a pause button in the touch screen, and restarting the line comparison test on the interface;

(5) the test process needs 30S, and after the test is finished, a recording button in the touch screen is clicked, so that the test result of the time can be recorded in a log.

The software for testing in the touch screen is a simple program which can be realized by a software development platform, and belongs to the conventional technology in the field.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A test bench for testing 52-51 connecting line components in centralized monitoring equipment is characterized in that: comprises a box body and an electric element arranged on the box body; the electric elements comprise a 24V switching power supply, 20 relays KA1-KA20, a PLC, a touch screen and a circuit breaker QF1,

2. The test bench of claim 1, wherein the test bench is used for testing the 52-51 connecting line composition of the centralized monitoring equipment, and comprises: four corners at the bottom of the box body are provided with universal casters, and the casters have a braking function and can conveniently fix or move the test board.