CN107907779A

CN107907779A - Hand-held cable connection test device, system and test method used for rail vehicle

Info

Publication number: CN107907779A
Application number: CN201711072280.7A
Authority: CN
Inventors: 黄胜坡; 桑占良; 王超; 张洪月; 常杰; 高月欣; 唐风梅
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2017-11-03
Filing date: 2017-11-03
Publication date: 2018-04-13
Anticipated expiration: 2037-11-03
Also published as: CN107907779B

Abstract

The present invention provides a kind of hand-held cable connection test device used for rail vehicle, and the busbar handover module (A) of device has cable end, and the contact of A connects the idle and test busbar of busbar respectively；Every busbar connects ground terminal by being grounded the contact of handover module (B).Also driving and grounding ports, each handover module have Enable Pin and contact.The slave device of system also has a power supply, power supply handover module (C), pressure measurement circuit in addition to having above device, control, communication module；Power supply connects test busbar by the contact of C.Control module connects driving, enables termination contact and driving.Short circuit → continuity test is performed to the first cable connected, main equipment determines corresponding test result, next cable reverse-order on same A tested, to last one.Test and be：It is main to send out test signal to slave device；The contact action of slave device control slave device, and main equipment control contact action is notified after the completion of switching, determine test result according to voltage, small, speed is fast.

Description

Hand-held cable connection test device, system and test method used for rail vehicle

Technical field

The present invention relates to line test field, more particularly, to hand-held cable connection test device used for rail vehicle, System and test method.

Background technology

Now, EMU has become the leading role of ten thousand inner railway line of China.Vehicle cable is crisscross in each car of EMU Intersegmental part, plays a crucial role motor-car operation power, communication transfer, its performance quality directly determines the safety of motor-car operation Property.

After the completion of motor-car wiring, in order to ensure the reliability of cable to cable it is necessary to carrying out continuity test, including cable Conducting resistance and line between with the presence or absence of short circuit.Electric wiring conduction test is the master operation of vehicle line experiment, and circuit is led Whether logical experiment is used to examine wiring correct, it is an extremely important test project, works equivalent to whole electrical test The 50% of task.

The solution method being currently mainly used is that manually cable is carried out by root, point-by-point inspection method using buzzer, This method efficiency is low and accuracy is poor；Surveyed still an alternative is that utilizing for the instrument of aircraft cable continuity test Examination, this method instrument are used for extensive cable continuity test, and thousands of cables can be tested at the same time, but the equipment body Product is big, of high cost, and principle and wiring are complicated, are unsuitable for the test of each socket loose wire in motor train compartment.

The content of the invention

Present invention offer is a kind of to be overcome the above problem or solves the above problems at least in part used for rail vehicle hand-held Formula cable connection test device, system and test method.

In a first aspect, the present invention provides a kind of hand-held cable connection test device used for rail vehicle, the rail vehicle Including at least two cables and car body to be tested, including：At least three bus rods, at least one busbar handover module, N number of connect Ground handover module, switching control drive circuit and the grounding ports for being connected with the car body；N be bus rod bar number, N For positive integer；At least three bus rods include an idle busbar, remaining bus rod is test busbar；

The switching control drive circuit is used to send switching signal；

Each busbar handover module includes being used for enabled input terminal, M cable connecting pin and the M for receiving switching signal To double-throw contact, two in each pair double-throw contact connect the idle busbar and a test busbar respectively, and difference is cut It is different to change the test busbar of contact portion, the enabled input terminal connects the M and double-throw contact and the switching control are driven Circuit, for when receiving switching signal, switching between the idle busbar and corresponding test busbar；M=N-1；

The ground connection handover module includes being used for enabled input terminal and a pair of the double-throw contact for receiving switching signal, every remittance Flow busbar and the grounding ports formation wire circuit, the enabled input are connected by a pair of of double-throw contact of an earthing module End connects the double-throw contact and the switching control drive circuit, for when receiving switching signal, in conducting wire electricity Switch between the connection on road and off-state.

Preferably, further include：DC power supply and M power supply handover module；

The power supply handover module includes being used for enabled input terminal and a pair of the double-throw contact for receiving switching signal, described straight Galvanic electricity source connects a test busbar by a pair of of double-throw contact of a power supply handover module and forms busbar power circuit, described Enabled input terminal connects the double-throw contact and the switching control drive circuit, for when receiving switching signal, in institute State and switch between the connection of busbar power circuit and off-state.

Preferably, M × 2 resistance and M resistance handover module are further included；

Each two resistance is connected in a busbar power circuit, and each resistance handover module includes cutting for reception The enabled input terminal of signal and a pair of of double-throw contact are changed, each resistance handover module passes through a pair of of double-throw contact and each busbar electricity A resistor coupled in parallel in source circuit forms resistor coupled in parallel circuit, and the enabled input terminal of the resistance handover module connects the resistance The double-throw contact of handover module and the switching control drive circuit, for when receiving switching signal, in the resistance simultaneously Join and switch between the connection of circuit and off-state.

Preferably, when the bus rod is three, the busbar handover module and ground connection handover module are double using double-pole Relay is thrown, the power supply handover module uses single-pole single-throw(SPST relay.

Second aspect, the present invention also provides a kind of hand-held cable continuity test system used for rail vehicle, including main equipment And slave device；The main equipment includes the hand-held cable connection test device used for rail vehicle described in claim 2, the first control Molding block, the first wireless communication module, the pressure measurement circuit for detecting the voltage for testing busbar；The slave device will including right Seek hand-held cable connection test device, the second control module and the second wireless communication module used for rail vehicle described in 1；

First control module connects switching control drive circuit, first wireless communication module of the main equipment With the pressure measurement circuit, the pressure measurement circuit connects every test busbar in main equipment；Second control module connects institute State the switching control drive circuit of slave device and second wireless communication module, first wireless communication module and described Two wireless communication module wireless connections；

The pressure measurement circuit, for the voltage of real-time testing test busbar, and is sent to described first by the voltage measured Control module；

First control module, for being controlled by the first wireless communication module and the second wireless communication module to second Module sends the test signal of test cable；After the handoff completion signal of the second control module transmission is received, to main equipment Switching control drive circuit send test cable test signal；The voltage that pressure measurement circuit is sent is received, is determined according to voltage The test result of cable is tested, test result is sent to second by the first wireless communication module and the second wireless communication module Control module；And after the preset time period of test result is sent to the second control module, pass through the first wireless communication module The test signal of test cable is sent to second control module with the second wireless communication module；

The switching control drive circuit of the main equipment, for the test of the test cable sent according to first control device Signal sends each busbar handover module from switching signal to the main equipment, each ground connection handover module and each power supply handover module, The double-throw contact of each busbar handover module of the main equipment, each ground connection handover module and each power supply handover module is cut according to Change signalizing activity；

Second control module, the test signal of the test cable for the first control module to be sent are sent to from setting Standby switching control drive circuit；The default of the test signal of test cable is sent in the switching control drive circuit to slave device After period, switching is sent to the first control module by first wireless communication module and the second wireless communication module and is completed Signal；And after the test result of the first control module transmission is received, the switching control drive circuit to slave device is sent Test the test signal of cable；

The switching control drive circuit of the slave device, for according to the test signal of test cable to the slave device Each busbar handover module and each ground connection handover module send switching signal, each busbar handover module of the slave device and each ground connection The corresponding double-throw contact of handover module is acted according to the switching signal；

First wireless communication module, for being interacted with the second wireless communication module.

Fourth aspect, the present invention also provides a kind of based on the hand-held cable continuity test system used for rail vehicle Hand-held cable continuity test method used for rail vehicle, including：

It is to be measured by first after on each busbar handover module that every cable to be tested is connected to main equipment and slave device Cable is tried as current test cable, the first control module is by the first wireless communication module and the second wireless communication module to institute The short-circuit test signal that the second control module sends current test cable is stated, it is described currently to test in the short-circuit test signal of cable Include the label of current test cable；

The switching control that the short-circuit test signal of the current test cable is sent to slave device by the second control module is driven Dynamic circuit；The switching control drive circuit of slave device is according to the short-circuit test signal of the current test cable to the slave device First object busbar handover module and the ground connection handover module that is connected with other bus rods send short-circuit switching signal, it is described The first object busbar handover module of slave device and the corresponding double-throw contact to the ground connection handover module of other bus rods connection Acted according to the short-circuit switching signal；The first object busbar handover module is the remittance being connected with the current test cable The busbar handover module that stream busbar is connected；Other bus rods of slave device are to remove in the bus rod of slave device and currently test Bus rod outside the test busbar of cable connection；

Second control module sends the preset time period of short-circuit switching signal in the switching control drive circuit to slave device Afterwards, short circuit switching is sent to the first control module by first wireless communication module and the second wireless communication module and completes letter Number；After the short-circuit handoff completion signal is received, the switching control drive circuit to main equipment is sent first control module The short-circuit test signal of current test cable；

The switching control drive circuit of main equipment is set according to the short-circuit test signal of the current test cable to the master Standby the second target bus handover module, the ground connection handover module being connected with other bus rods and first object power supply switching mould Block sends short-circuit switching signal, the busbar handover module of the main equipment, with the ground connection handover module of other bus rods and the The double-throw contact of one target power handover module is acted according to the short-circuit switching signal；Based on other bus rods of main equipment Bus rod in the bus rod of equipment in addition to the test busbar being connected with current test cable；Second target bus is cut Mold changing block is the busbar handover module that the test busbar being connected with the current test cable is connected；The first object power supply is cut Mold changing block is the power supply handover module that the test busbar being connected with the current test cable is connected；

The voltage for the test busbar that pressure measurement circuit real-time testing is connected with the current test cable, and the voltage that will be measured First control module is sent to, the first control module determines the current test cable and other cables according to the voltage Short-circuit test as a result, the short-circuit test result is sent to by the first wireless communication module and the second wireless communication module Second control module；

Second control module is after the short-circuit test result is received, the switching control driving to the slave device Circuit sends the continuity test signal of current test cable；The switching control drive circuit of slave device is according to the current p-wire The continuity test signal of cable sends conducting switching signal, the institute of the slave device to all ground connection handover modules of the slave device There is the double-throw contact of ground connection handover module according to the conducting switching signal action；

Second control module sends the preset time period of conducting switching signal in the switching control drive circuit to slave device Afterwards, conducting switching is sent to the first control module by first wireless communication module and the second wireless communication module and completes letter Number；After the conducting handoff completion signal is received, the switching control drive circuit to main equipment is sent first control module The continuity test signal of current test cable；

The switching control drive circuit of main equipment is set according to the continuity test signal of the current test cable to the master The standby ground connection handover module being connected with other bus rods sends conducting switching signal, and the main equipment tests mother with other The double-throw contact of the ground connection handover module of line connection is according to the conducting switching signal action；

The voltage for the test busbar that pressure measurement circuit real-time testing is connected with the current test cable, and the voltage that will be measured First control module is sent to, the first control module determines the continuity test of the current test cable according to the voltage As a result, the continuity test result is sent to second control by the first wireless communication module and the second wireless communication module Molding block；

First control module is to be measured by second after the preset time period of continuity test result is sent to the second control module Cable is tried as current test cable, mould is controlled to described second by the first wireless communication module and the second wireless communication module Block sends the continuity test signal of current test cable, and the continuity test signal of the current test cable includes currently test The label of cable, the second test cable are one be connected to the described first test cable in a busbar handover module Cable to be tested；

The switching control that the continuity test signal of the current test cable is sent to slave device by the second control module is driven Dynamic circuit；The switching control drive circuit of slave device is according to the continuity test signal of the current test cable to the slave device First object ground connection handover module, the second target earth handover module send conducting switching signal, the first of the slave device The corresponding double-throw contact of target earth handover module, the second target earth handover module is according to the conducting switching signal action； The first object ground connection handover module is the ground connection handover module that the test busbar being connected with the described first test cable is connected, The second target earth handover module is the ground connection handover module that the test busbar being connected with the described second test cable is connected；

The switching control drive circuit of main equipment is set according to the continuity test signal of the current test cable to the master Standby first object power supply handover module, the second target power handover module send conducting switching signal, and the of the main equipment The double-throw contact of one target power handover module, the second target power handover module is according to the conducting switching signal action；Institute It is the power supply handover module that the test busbar being connected with the current test cable is connected to state the second target power handover module；

The voltage for the test busbar that pressure measurement circuit real-time testing is connected with the current test cable, and the voltage that will be measured First control module is sent to, the first control module determines the continuity test of the second test cable according to the voltage As a result, the continuity test result is sent to second control by the first wireless communication module and the second wireless communication module Molding block；

Second control module is after the continuity test result is received, the switching control driving to the slave device Circuit sends the short-circuit test signal of current test cable；The switching control drive circuit of slave device is according to the current p-wire The short-circuit test signal of cable sends short-circuit switching signal, the institute of the slave device to all ground connection handover modules of the slave device The double-throw contact for having ground connection handover module is acted according to the short-circuit switching signal；

The switching control drive circuit of main equipment is set according to the short-circuit test signal of the current test cable to the master The standby ground connection handover module being connected with other bus rods sends conducting switching signal, the main equipment it is female with other confluences The double-throw contact of the ground connection handover module of line connection is acted according to the short-circuit switching signal；

The voltage for the test busbar that pressure measurement circuit real-time testing is connected with the current test cable, and the voltage that will be measured First control module is sent to, the first control module determines the current test cable and other cables according to the voltage Short-circuit test as a result, the short-circuit test result is sent to by the first wireless communication module and the second wireless communication module The second control mould；

Second control module is after the short-circuit test result is received, by first object busbar handover module 3rd cable to be tested repeats the switching control drive circuit to the slave device and sends current test as current test cable The continuity test signals step of cable, until the last item in the first object busbar handover module busbar handover module is treated Test cable and complete continuity test.

5th aspect, the present invention also provides a kind of hand-held cable continuity test system used for rail vehicle, including main equipment And slave device；The main equipment includes the hand-held cable connection test device used for rail vehicle, the first control module, the One wireless communication module, the pressure measurement circuit for detecting the voltage for testing busbar；The slave device includes the rail vehicle With hand-held cable connection test device, the second control module and the second wireless communication module；

The switching control drive circuit of the main equipment, for the test of the test cable sent according to first control device Signal sends each busbar handover module from switching signal to the main equipment, each ground connection handover module and each power supply handover module, Each busbar handover module of the main equipment, be respectively grounded cutting for handover module, each resistance handover module and each power supply handover module Contact is changed to be acted according to the switching signal；

6th aspect, the present invention also provides a kind of based on the hand-held cable continuity test system used for rail vehicle Hand-held cable continuity test method used for rail vehicle, including：

The switching control drive circuit of main equipment is set according to the short-circuit test signal of the current test cable to the master Standby the second target bus handover module, the ground connection handover module being connected with other bus rods, first object power supply switching mould Block and the short-circuit switching signal of resistance handover module transmission being connected with current test busbar, the busbar switching mould of the main equipment Block, the ground connection handover module being connected with other bus rods, first object power supply handover module and it is connected with current test busbar The double-throw contact of resistance handover module acted according to the short-circuit switching signal；Other bus rods of main equipment are main equipment Bus rod in bus rod in addition to what is be connected with current test cable tests busbar；Second target bus switches mould Block is the busbar handover module that the test busbar being connected with the current test cable is connected；The first object power supply switches mould Block is the power supply handover module that the test busbar being connected with the current test cable is connected；The current test busbar is with working as The test busbar of preceding test cable connection；

The switching control drive circuit of main equipment is set according to the continuity test signal of the current test cable to the master The standby ground connection handover module being connected with other bus rods and the resistance handover module being connected with currently testing busbar send and lead Logical switching signal, ground connection handover module be connected with other test busbares of the main equipment and with currently testing what busbar was connected The double-throw contact of resistance handover module is according to the conducting switching signal action；

The switching control drive circuit of main equipment is set according to the short-circuit test signal of the current test cable to the master The standby ground connection handover module being connected with other bus rods and the resistance handover module being connected with currently testing busbar send and lead Logical switching signal, ground connection handover module be connected with other bus rods of the main equipment and with currently testing what busbar was connected The double-throw contact of resistance handover module is acted according to the short-circuit switching signal；

As shown from the above technical solution, more cables of the invention share a busbar handover module, using more bus rods Method, can effectively reduce the quantity using busbar handover module, reduce cost, reduce equipment volume；Once switch out at the same time Carry out more cables, reduce busbar handover module action frequency, test speed is very fast.Test more on a busbar handover module During root cable, the short-circuit conditions of first cable are surveyed first, are then surveyed the conduction resistance value of first cable, are then surveyed second again The conduction resistance value of root cable, finally surveys short-circuit conditions ... the to the last single line cable of second cable, reduces correspondence and cuts The switching times of block are changed the mold, improve test speed.

Brief description of the drawings

Fig. 1 is the circuit diagram for the hand-held cable continuity test system used for rail vehicle that one embodiment of the invention provides；

Fig. 2 is short-circuit equivalent circuit diagram corresponding with Fig. 1；

Fig. 3 is conducting equivalent circuit diagram corresponding with Fig. 1；

Fig. 4 is the schematic diagram of single-pole single-throw(SPST relay；

Fig. 5 is the schematic diagram of dpdt relay.

Embodiment

With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below Example is used to illustrate the present invention, but is not limited to the scope of the present invention.

Embodiment one

A kind of hand-held cable connection test device used for rail vehicle, the rail vehicle include at least two lines to be tested Cable and car body, including：At least three bus rods, at least one busbar handover module, N number of ground connection handover module, switching control Drive circuit and the grounding ports for being connected with the car body；N is the bar number of bus rod, and N is positive integer；Described at least three Bar bus rod includes an idle busbar, remaining bus rod is test busbar；

The switching control drive circuit is used to send switching signal；

During actual test, the test circuit of the test device of the present embodiment as slave device.

As a kind of preferred embodiment, further include：DC power supply and M power supply handover module；

During actual test, the test circuit of the test device of the present embodiment as main equipment.

The present embodiment also provides a kind of hand-held cable continuity test system used for rail vehicle, including main equipment and from setting It is standby；The main equipment include in the present embodiment as main equipment test circuit the hand-held cable used for rail vehicle Connection test device, the first control module, the first wireless communication module, the pressure measurement circuit for detecting the voltage for testing busbar； The slave device includes the hand-held cable connection test device used for rail vehicle of the test circuit as slave device, the Two control modules and the second wireless communication module；

The present embodiment also provides a kind of hand-held cable continuity test system used for rail vehicle based on described in the present embodiment Hand-held cable continuity test method used for rail vehicle, including：

S101, on each busbar handover module that every cable to be tested is connected to main equipment and slave device after, by One cable to be tested passes through the first wireless communication module and the second radio communication mold as current test cable, the first control module Block sends the short-circuit test signal of current test cable, the short-circuit test of the current test cable to second control module Signal includes the label of currently test cable；

The short-circuit test signal of the current test cable is sent to the switching control of slave device by S102, the second control module Drive circuit processed；The switching control drive circuit of slave device according to the short-circuit test signal of the current test cable to it is described from The first object busbar handover module of equipment and the ground connection handover module being connected with other bus rods send short-circuit switching signal, The first object busbar handover module of the slave device and the corresponding switching to the ground connection handover module of other bus rods connection Contact is acted according to the short-circuit switching signal；The first object busbar handover module is to be connected with the current test cable The busbar handover module that is connected of bus rod；Other bus rods of slave device for slave device bus rod in remove with it is current Test the bus rod outside the test busbar of cable connection；

S103, the second control module the switching control drive circuit to slave device send short-circuit switching signal it is default when Between after section, short circuit is sent to the first control module by first wireless communication module and the second wireless communication module and has been switched Into signal；First control module is after the short-circuit handoff completion signal is received, the switching control drive circuit to main equipment Send the short-circuit test signal of current test cable；

S104, the switching control drive circuit of main equipment are according to the short-circuit test signal of the current test cable to described Second target bus handover module of main equipment, the ground connection handover module being connected with other bus rods and first object power supply are cut Change the mold block and send short-circuit switching signal, the busbar handover module of the main equipment, the ground connection handover module with other bus rods Double-throw contact with first object power supply handover module is acted according to the short-circuit switching signal；Other bus rods of main equipment For the bus rod in the bus rod of main equipment in addition to the test busbar being connected with current test cable；Second target is female Line handover module is the busbar handover module that the test busbar being connected with the current test cable is connected；The first object electricity Source handover module is the power supply handover module that the test busbar being connected with the current test cable is connected；

The voltage for the test busbar that S105, pressure measurement circuit real-time testing are connected with the current test cable, and will measure Voltage be sent to first control module, the first control module determines the current test cable and its according to the voltage The short-circuit test of its cable by the short-circuit test result as a result, pass through the first wireless communication module and the second wireless communication module It is sent to second control module；

S106, second control module are after the short-circuit test result is received, the switching control to the slave device Drive circuit processed sends the continuity test signal of current test cable；The switching control drive circuit of slave device is according to described current The continuity test signal for testing cable sends conducting switching signal to all ground connection handover modules of the slave device, described from setting The double-throw contact of standby all ground connection handover modules is according to the conducting switching signal action；

S107, the second control module to slave device switching control drive circuit send conducting switching signal it is default when Between after section, conducting is sent to the first control module by first wireless communication module and the second wireless communication module and has been switched Into signal；First control module is after the conducting handoff completion signal is received, the switching control drive circuit to main equipment Send the continuity test signal of current test cable；

S108, the switching control drive circuit of main equipment are according to the continuity test signal of the current test cable to described The ground connection handover module that is connected with other bus rods of main equipment sends conducting switching signal, the main equipment with other surveys The double-throw contact of the ground connection handover module of busbar connection is tried according to the conducting switching signal action；

The voltage for the test busbar that S109, pressure measurement circuit real-time testing are connected with the current test cable, and will measure Voltage be sent to first control module, the first control module determines leading for the current test cable according to the voltage Logical test result, the continuity test result is sent to by the first wireless communication module and the second wireless communication module described Second control module；

S110, the first control module to the second control module after the preset time period of continuity test result is sent, by the Two cables to be tested are as current test cables, by the first wireless communication module and the second wireless communication module to described second Control module sends the continuity test signal of current test cable, and the continuity test signal of the current test cable includes working as The label of preceding test cable, the second test cable are to be connected to the described first test cable in a busbar handover module A cable to be tested；

The continuity test signal of the current test cable is sent to the switching control of slave device by S111, the second control module Drive circuit processed；The switching control drive circuit of slave device according to the continuity test signal of the current test cable to it is described from First object ground connection handover module, the second target earth handover module of equipment send conducting switching signal, the slave device The corresponding double-throw contact of first object ground connection handover module, the second target earth handover module is moved according to the conducting switching signal Make；The first object ground connection handover module is that the ground connection that the test busbar being connected with the described first test cable is connected switches mould Block, the second target earth handover module are that the ground connection that the test busbar being connected with the described second test cable is connected switches mould Block；

S112, the second control module to slave device switching control drive circuit send conducting switching signal it is default when Between after section, conducting is sent to the first control module by first wireless communication module and the second wireless communication module and has been switched Into signal；First control module is after the conducting handoff completion signal is received, the switching control drive circuit to main equipment Send the continuity test signal of current test cable；

S113, the switching control drive circuit of main equipment are according to the continuity test signal of the current test cable to described First object power supply handover module, the second target power handover module of main equipment send conducting switching signal, the main equipment First object power supply handover module, the second target power handover module double-throw contact according to it is described conducting switching signal move Make；The second target power handover module is that the power supply that the test busbar being connected with the current test cable is connected switches mould Block；

The voltage for the test busbar that S114, pressure measurement circuit real-time testing are connected with the current test cable, and will measure Voltage be sent to first control module, the first control module determines leading for the second test cable according to the voltage Logical test result, the continuity test result is sent to by the first wireless communication module and the second wireless communication module described Second control module；

S115, second control module are after the continuity test result is received, the switching control to the slave device Drive circuit processed sends the short-circuit test signal of current test cable；The switching control drive circuit of slave device is according to described current Test the short-circuit test signal of cable and send short-circuit switching signal to all ground connection handover modules of the slave device, it is described from setting The double-throw contact of standby all ground connection handover modules is acted according to the short-circuit switching signal；

S116, the second control module the switching control drive circuit to slave device send short-circuit switching signal it is default when Between after section, short circuit is sent to the first control module by first wireless communication module and the second wireless communication module and has been switched Into signal；First control module is after the short-circuit handoff completion signal is received, the switching control drive circuit to main equipment Send the short-circuit test signal of current test cable；

S117, the switching control drive circuit of main equipment are according to the short-circuit test signal of the current test cable to described The ground connection handover module that is connected with other bus rods of main equipment sends conducting switching signal, the main equipment with other remittances The double-throw contact for flowing the ground connection handover module of busbar connection is acted according to the short-circuit switching signal；

The voltage for the test busbar that S118, pressure measurement circuit real-time testing are connected with the current test cable, and will measure Voltage be sent to first control module, the first control module determines the current test cable and its according to the voltage The short-circuit test of its cable by the short-circuit test result as a result, pass through the first wireless communication module and the second wireless communication module It is sent to the second control mould；

S119, second control module switch mould after the short-circuit test result is received, by first object busbar 3rd cable to be tested in the block repeats the switching control drive circuit transmission to the slave device and works as current test cable The continuity test signals step of preceding test cable, until last in the first object busbar handover module busbar handover module One cable to be tested completes continuity test.

Test philosophy is as detailed below.

As it can be seen that more cables of the present embodiment share a busbar handover module, can be effective using more bus rod methods The quantity using busbar handover module is reduced, reduces cost, reduces equipment volume；More cables are once switched out at the same time, are subtracted Busbar handover module action frequency is lacked, test speed is very fast.

When testing more cables on a busbar handover module, the short-circuit conditions of first cable are surveyed first, are then surveyed The conduction resistance value of first cable, then surveys the conduction resistance value of second cable again, finally surveys the short circuit of second cable Situation ... to the last single line cable, reduces the switching times of corresponding handover module, improves test speed.

Embodiment two

It is with the difference of above-described embodiment, the test circuit as main equipment further includes M × 2 resistance and M Resistance handover module；

When the present embodiment test cable short circuit or conducting resistance, automatically switch electricity when controlling bus rod grounding relay The resistance sealed between source and busbar, changes the resistance value sealed in, ensure that the precision of test result automatically.

The present embodiment can control the ground connection of corresponding bus rod to switch and change at the same time and seal in mother by a switching signal The resistance of line power circuit, can effectively reduce the quantity using handover module, reduce cost, reduce equipment volume.

S201, on each busbar handover module that every cable to be tested is connected to main equipment and slave device after, by One cable to be tested passes through the first wireless communication module and the second radio communication mold as current test cable, the first control module Block sends the short-circuit test signal of current test cable, the short-circuit test of the current test cable to second control module Signal includes the label of currently test cable；

The short-circuit test signal of the current test cable is sent to the switching control of slave device by S202, the second control module Drive circuit processed；The switching control drive circuit of slave device according to the short-circuit test signal of the current test cable to it is described from The first object busbar handover module of equipment and the ground connection handover module being connected with other bus rods send short-circuit switching signal, The first object busbar handover module of the slave device and the corresponding switching to the ground connection handover module of other bus rods connection Contact is acted according to the short-circuit switching signal；The first object busbar handover module is to be connected with the current test cable The busbar handover module that is connected of bus rod；Other bus rods of slave device for slave device bus rod in remove with it is current Test the bus rod outside the test busbar of cable connection；

S203, the second control module the switching control drive circuit to slave device send short-circuit switching signal it is default when Between after section, short circuit is sent to the first control module by first wireless communication module and the second wireless communication module and has been switched Into signal；First control module is after the short-circuit handoff completion signal is received, the switching control drive circuit to main equipment Send the short-circuit test signal of current test cable；

S204, the switching control drive circuit of main equipment are according to the short-circuit test signal of the current test cable to described Second target bus handover module of main equipment, the ground connection handover module being connected with other bus rods, first object power supply are cut Mold changing block and the short-circuit switching signal of resistance handover module transmission being connected with current test busbar, the busbar switching of the main equipment Module, with the ground connection handover module of other bus rods, first object power supply handover module and being connected with current test busbar The double-throw contact of resistance handover module is acted according to the short-circuit switching signal；Other bus rods of main equipment are main equipment Bus rod in bus rod in addition to the test busbar being connected with current test cable；The current test busbar be with it is current Test the test busbar of cable connection；The second target bus handover module is the test being connected with the current test cable The busbar handover module that busbar is connected；The first object power supply handover module is the test being connected with the current test cable The power supply handover module that busbar is connected；

The voltage for the test busbar that S205, pressure measurement circuit real-time testing are connected with the current test cable, and will measure Voltage be sent to first control module, the first control module determines the current test cable and its according to the voltage The short-circuit test of its cable by the short-circuit test result as a result, pass through the first wireless communication module and the second wireless communication module It is sent to second control module；

S206, second control module are after the short-circuit test result is received, the switching control to the slave device Drive circuit processed sends the continuity test signal of current test cable；The switching control drive circuit of slave device is according to described current The continuity test signal for testing cable sends conducting switching signal to all ground connection handover modules of the slave device, described from setting The double-throw contact of standby all ground connection handover modules is according to the conducting switching signal action；

S207, the second control module to slave device switching control drive circuit send conducting switching signal it is default when Between after section, conducting is sent to the first control module by first wireless communication module and the second wireless communication module and has been switched Into signal；First control module is after the conducting handoff completion signal is received, the switching control drive circuit to main equipment Send the continuity test signal of current test cable；

S208, the switching control drive circuit of main equipment are according to the continuity test signal of the current test cable to described The ground connection handover module being connected with other bus rods of main equipment and the resistance handover module hair being connected with current test busbar Send conducting switching signal, ground connection handover module be connected with other test busbares of the main equipment and with current test busbar company The double-throw contact of the resistance handover module connect is according to the conducting switching signal action；

The voltage for the test busbar that S209, pressure measurement circuit real-time testing are connected with the current test cable, and will measure Voltage be sent to first control module, the first control module determines leading for the current test cable according to the voltage Logical test result, the continuity test result is sent to by the first wireless communication module and the second wireless communication module described Second control module；

S210, the first control module to the second control module after the preset time period of continuity test result is sent, by the Two cables to be tested are as current test cables, by the first wireless communication module and the second wireless communication module to described second Control module sends the continuity test signal of current test cable, and the continuity test signal of the current test cable includes working as The label of preceding test cable, the second test cable are to be connected to the described first test cable in a busbar handover module A cable to be tested；

The continuity test signal of the current test cable is sent to the switching control of slave device by S211, the second control module Drive circuit processed；The switching control drive circuit of slave device according to the continuity test signal of the current test cable to it is described from First object ground connection handover module, the second target earth handover module of equipment send conducting switching signal, the slave device The corresponding double-throw contact of first object ground connection handover module, the second target earth handover module is moved according to the conducting switching signal Make；The first object ground connection handover module is that the ground connection that the test busbar being connected with the described first test cable is connected switches mould Block, the second target earth handover module are that the ground connection that the test busbar being connected with the described second test cable is connected switches mould Block；

S212, the second control module to slave device switching control drive circuit send conducting switching signal it is default when Between after section, conducting is sent to the first control module by first wireless communication module and the second wireless communication module and has been switched Into signal；First control module is after the conducting handoff completion signal is received, the switching control drive circuit to main equipment Send the continuity test signal of current test cable；

S213, the switching control drive circuit of main equipment are according to the continuity test signal of the current test cable to described First object power supply handover module, the second target power handover module of main equipment send conducting switching signal, the main equipment First object power supply handover module, the second target power handover module double-throw contact according to it is described conducting switching signal move Make；The second target power handover module is that the power supply that the test busbar being connected with the current test cable is connected switches mould Block；

The voltage for the test busbar that S214, pressure measurement circuit real-time testing are connected with the current test cable, and will measure Voltage be sent to first control module, the first control module determines leading for the second test cable according to the voltage Logical test result, the continuity test result is sent to by the first wireless communication module and the second wireless communication module described Second control module；

S215, second control module are after the continuity test result is received, the switching control to the slave device Drive circuit processed sends the short-circuit test signal of current test cable；The switching control drive circuit of slave device is according to described current Test the short-circuit test signal of cable and send short-circuit switching signal to all ground connection handover modules of the slave device, it is described from setting The double-throw contact of standby all ground connection handover modules is acted according to the short-circuit switching signal；

S216, the second control module the switching control drive circuit to slave device send short-circuit switching signal it is default when Between after section, short circuit is sent to the first control module by first wireless communication module and the second wireless communication module and has been switched Into signal；First control module is after the short-circuit handoff completion signal is received, the switching control drive circuit to main equipment Send the short-circuit test signal of current test cable；

S217, the switching control drive circuit of main equipment are according to the short-circuit test signal of the current test cable to described The ground connection handover module being connected with other bus rods of main equipment and the resistance handover module hair being connected with current test busbar Send conducting switching signal, the ground connection handover module being connected with other bus rods of the main equipment and connect with current test busbar The double-throw contact of the resistance handover module connect is acted according to the short-circuit switching signal；

The voltage for the test busbar that S218, pressure measurement circuit real-time testing are connected with the current test cable, and will measure Voltage be sent to first control module, the first control module determines the current test cable and its according to the voltage The short-circuit test of its cable by the short-circuit test result as a result, pass through the first wireless communication module and the second wireless communication module It is sent to the second control mould；

S219, second control module switch mould after the short-circuit test result is received, by first object busbar 3rd cable to be tested in the block repeats the switching control drive circuit transmission to the slave device and works as current test cable The continuity test signals step of preceding test cable, until last in the first object busbar handover module busbar handover module One cable to be tested completes continuity test.

Test philosophy is as detailed below.

For above-described embodiment one and embodiment two, further, when the bus rod is three, the busbar switches Module and ground connection handover module use dpdt relay, and the power supply handover module uses single-pole single-throw(SPST relay.It is true On, dpdt relay can also be substituted by two single-pole single-throw(SPST relays.

Specific test philosophy and test of the motor-car shown in Fig. 1 with the automatic continuity test system of hand-held cable is provided below Method.

L in figure₁、L₂……L_nRepresent n root cables to be tested on motor-car, the first equipment 1 and the second equipment 2 set for test It is standby.First equipment 1 is identical with 2 hardware of the second equipment, and when work need to be passed through the first equipment 1 by the software program of equipment Software design patterns are host (i.e. the above-mentioned main equipment of the present invention), and for slave, (i.e. the present invention is above-mentioned by software design patterns for the second equipment 2 Slave device)；

First equipment mainly includes：Observing and controlling core, DC power supply 15, resistance, relay, bus rod and Wiring port. Observing and controlling core includes CPU11 (as the first control module and the second control module), relay control drive circuit 12, modulus and turns Parallel operation (the AD sampling modules 14 in figure, and pressure measurement circuit), communication module 13；R₁And R₃For two low resistance resistance, R₂And R₄ For two high resistance measurements；K_a、K_b、K_cFor single-pole single-throw(SPST normally opened relay, K₁、K₂…K_mFor dpdt relay, relay Explanation see Fig. 4 and Fig. 5 and explanation；Bus rod has three, is respectively M₁、M₂And M₃；Wiring port has two classes, a ground connection Port, remaining is cable access port to be tested (i.e. cable connecting pin).For the ease of narration, the corresponding letter of the second equipment 2 and The equal prime of digital number represents.

The DC power supply 15 of first equipment 1 is by being used as the relay K of a power supply handover module_a, resistance R₁、R₂Composition Series circuit connection bus rod M₁, DC power supply 15 is by being used as the relay K of another power supply handover module_b, resistance R₃、R₄The series circuit connection bus rod M of composition₂, resistance R₂With relay K₂A pair of contact connection, formed and R₂In parallel Relay circuit, while relay K₂Another pair contact and bus rod M₂It is connected to the ground connection switching mould of the bus rod Block, resistance R₄With relay K₁A pair of contact connection, formed and R₄Relay circuit in parallel, while relay K₁It is another To contact and bus rod M₁It is connected to the ground connection handover module of the bus rod；Bus rod M₃Pass through relay K_cConnection Grounding ports.The communication module 13 of observing and controlling core, CPU11, AD sampling module 14 are sequentially connected, and two of AD sampling modules 14 adopt Sample end connects bus rod M respectively₁And M₂, CPU11 be also connected with relay control drive circuit 12, relay control drive circuit The enabled input terminal of the 12 each relays of connection.

The structure of second equipment 2 is identical with the first equipment 1, repeats no more.

During test, the connected plug in cable both ends to be tested is inserted into the first equipment 1 and the second equipment 2 respectively, that is, is connected To relay K₃…K_mCable connecting pin on, the grounding ports of the first equipment 1 and the second equipment 2 are connected to multiple unit train body 3.Host Communication main station is established, slave is connected to host (wired or wireless way).All cables are all connected to idle busbar M before test₃On, Test certain cable L_iWhen, by the action of control bus handover module by L_i(this sentences L₁As L_iExemplified by) it is switched to correspondence Test busbar M₁(be herein with two cable connecting pins, the first of two enabled input terminals and four double-throw contacts is female Illustrate exemplified by line handover module, cable L to be tested₁、L₂It is connected to two cable connecting pins, L₁Switched by the first busbar Two double-throw contacts of module connect idle busbar M respectively₃With test busbar M₁, L₂Pass through two of the first busbar handover module Double-throw contact connects idle busbar M respectively₃With test busbar M₂), while by L_i+1(L₂) it is switched to test busbar M₂.Test certain Cable L_iWhen whether having the short circuit with other cables, corresponding busbar is controlled to switch mould by host and slave processors (main equipment and slave device) Block, power supply handover module, the action for being grounded handover module, switching circuit is equivalent into circuit as shown in Figure 2, and applying supply voltage is V₁, measurement bus rod M₁On voltage be V₂.According to circuit basic principle, in the case where there is serious short circuit to occur, confluence is female Line M₁On voltage it is very low, close to zero；Bus rod M when having not serious short-circuit conditions₁On voltage it is relatively low, and in no short circuit In the case of generation, bus rod M₁On voltage it is very high, close to supply voltage.Thus can be according to V₂/V₁Value judges circuit to be measured Short-circuit state.

Test certain cable L_iConducting resistance when, pass through the action of the corresponding each handover module of host and slave processors control, switching Circuit equivalent measures bus rod M into circuit as shown in Figure 3₁On voltage (V₂), supply voltage V₁.It is substantially former according to circuit Reason, ignores multiple unit train body (as rail vehicle) resistance, cable L_iConducting resistance R_{I is led}, according to R_{I is led}Size can determine whether cable Conduction quality.

Wherein, R_oFor in cable L_iWhen carrying out continuity test, it is connected on and L_iThe busbar power circuit of the test busbar of connection In resistance resistance value.

It should be noted a bit：When testing cable conducting resistance, because the general value is smaller, so only sealing in low resistance resistance R₁, to improve resistance test precision；When test cable whether there is short circuit, the hanging off resistance value of cable is infinitely great, not serious short Resistance value is also larger during road, so sealing in high resistance measurement R₁+R₂, to improve measuring accuracy.

What deserves to be explained is increase resistance makes when testing cable short circuit or conducting resistance, in control bus rod ground connection The resistance sealed in during handover module between auto switching electric source and busbar, changes the resistance value sealed in automatically, it is ensured that test As a result precision.

In fact, when there is no resistance, according to the voltage V measured₂With supply voltage V₁Also the short circuit and conducting of cable can be measured Situation.

In the step, to test L₁、L₂Exemplified by describe specific testing procedure.

A) L is tested₁(first surveying short-circuit conditions, survey conducting resistance afterwards)：

Host sends test wire size " L₁" give slave；After slave receives information, relay K' is controlled₃Action, by L₁From confluence Busbar M'₃It is switched to M'₁, control relay K'_cAction, by bus rod M'₃Car body (multiple unit train body) is connected to, controls relay K'₂Action, by bus rod M'₂Car body is connected to, and (process is led to by the CPU of slave to the completion of return information notice mian engine changeover Cross what host and slave processors communication module was sent to the CPU of main equipment)；Host receives information feedback (the switching completion that slave switching is completed Signal, similarly hereinafter) after, control relay K₃Action, by L₁From bus rod M₃It is switched to M₁, control relay K_cAction, will converge Busbar M₃It is connected to car body, control relay K₂Action, by bus rod M₂Car body is connected to, while will be with R₂Relay in parallel returns Road disconnects, control relay K_aAction, passes through resistance R₁And R₂Series loop to M₁Add DC power supply (voltage V₁), the AD of host Sampling module 14 gathers M₁Voltage (V₂), and calculate V₂/V₁, it is worth judge L accordingly₁Whether there is short-circuit hair with remaining n-1 roots cable It is raw, and by short-circuit test result be sent to slave (process be from host CPU11 by the communication modules of host and slave processors to from What the CPU of machine was sent)；Slave receives L₁Short-circuit test result and after preserving, control relay K'₂And K'_cReset so that converge Flow busbar M'₂And M'₃Depart from car body, control relay K'₁Action so that bus rod M'₁Car body is connected to, and return information leads to Know that mian engine changeover is completed；After host receives the information feedback that slave switching is completed, relay K is controlled₂Reset so that bus rod M₂Depart from car body, while will be with R₂Relay circuit closure in parallel, resistance R₂It is short-circuited, host A DC collections M₁Voltage, L₁Lead Logical test resistance is R_{1 leads}, and resistance test result is sent to slave；Slave receives L₁Continuity test result and preserve.

B) L is tested₂(first surveying conducting resistance, survey short-circuit conditions afterwards)：

Host sends test wire size " L₂" give slave；After slave receives information, relay K' is controlled₁Reset, control relay K'₂Action, and information is completed into switching and is sent to host；After host receives switching completion information (handoff completion signal), control Relay K_aReset, control relay K_bAction, the AD sampling modules 14 of host gather bus rod M₂Voltage V₂, L₂Conducting survey Examination resistance is R_{2 lead}, and resistance test result is sent to slave；Slave receives L₂Short-circuit test result and preserve, control relay Device K'₂Reset, control relay K'₁And K'_cAction, and information is completed into switching and is sent to host；Host receives switching and completes letter After breath, relay K is controlled₁And K_cAction, host A DC collection bus rods M₂Voltage V₂, and calculate V₂/V₁, value judgement accordingly L₂Whether there is short-circuit generation with remaining n-1 roots cable, and short-circuit test result is sent to slave；Slave receives L₂Short circuit survey Preserved after test result.

So far, cable L is completed₁And L₂Test, follow-up test is similar.

In specific embodiment shown in Fig. 1, both threads cable shares a dpdt relay, using 3 bus rod sides Method, can effectively reduce the quantity using relay, reduce cost, reduce equipment volume；Once it is switched out both threads at the same time Cable, reduces actuating of relay number, and test speed is very fast.

When testing cable short circuit or conducting resistance, auto switching electric source and busbar when controlling bus rod grounding relay Between the resistance that seals in, change the resistance value sealed in automatically, ensure that the precision of test result.

Fig. 4 is single-pole single-throw switch (SPST) (single-pole single-throw(SPST relay), and 1,2 pins enable input pin (i.e. for the actuating of relay Above-mentioned enabled input terminal), actuating of relay when applying certain voltage signal between 1 and 2, contact closure, turns between 3 and 4； The voltage signal that applies between the 1 and 2 then relay that disappears resets, 3 and 4 it is separated.

Fig. 5 is dpdt relay, and 1,2 pins enable input pin (i.e. above-mentioned enabled input for the actuating of relay End), 3,4,5 be a group relay movable contact, normally-closed contact, normally-closed contact, 6,7,8 for another group relay movable contact, Normally-closed contact, normally-closed contact.Between 1 and 2 apply certain voltage signal when the actuating of relay, disconnect 3 to 4 path, connect 3 to 5 path, simultaneously switches off 6 to 7 path, connects 6 to 8 path.

In the present invention describes, " the control actuating of relay " shows relay and applies power supply, after relay is in action State, " control relay reset " refers to the power supply that excision applies to relay, makes relay in a state of nature.

Finally, the present processes are only preferable embodiment, are not intended to limit the scope of the present invention.It is all Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on, should be included in the protection of the present invention Within the scope of.

Claims

1. a kind of hand-held cable connection test device used for rail vehicle, the rail vehicle includes at least two cables to be tested And car body, it is characterised in that including：At least three bus rods, at least one busbar handover module, it is N number of ground connection handover module, Switching control drive circuit and the grounding ports for being connected with the car body；N is the bar number of bus rod, and N is positive integer；Institute Stating at least three bus rods includes an idle busbar, remaining bus rod is test busbar；

The switching control drive circuit is used to send switching signal；

Enabled input terminal, M cable connecting pin and the M that each busbar handover module includes being used to receive switching signal are to cutting Contact is changed, two in each pair double-throw contact connect the idle busbar and a test busbar respectively, and difference switching is touched The test busbar of point connection is different, and the enabled input terminal connects the M to double-throw contact and the switching control drive circuit, For when receiving switching signal, switching between the idle busbar and corresponding test busbar；M=N-1；

The ground connection handover module includes being used for enabled input terminal and a pair of the double-throw contact for receiving switching signal, and every confluence is female Line connects the grounding ports by a pair of of double-throw contact of an earthing module and forms wire circuit, and the enabled input terminal connects The double-throw contact and the switching control drive circuit are connect, for when receiving switching signal, in the wire circuit Switch between connection and off-state.

2. device according to claim 1, it is characterised in that further include：DC power supply and M power supply handover module；

The power supply handover module includes being used for enabled input terminal and a pair of the double-throw contact for receiving switching signal, the direct current Source connects a test busbar by a pair of of double-throw contact of a power supply handover module and forms busbar power circuit, described enabled Input terminal connects the double-throw contact and the switching control drive circuit, for when receiving switching signal, in the mother Switch between the connection of line power circuit and off-state.

3. the apparatus of claim 2, it is characterised in that further include M × 2 resistance and M resistance handover module；

Each two resistance is connected in a busbar power circuit, and each resistance handover module includes being used to receive switching letter Number enabled input terminal and a pair of of double-throw contact, each resistance handover module pass through a pair of of double-throw contact and each busbar power supply electricity A resistor coupled in parallel in road forms resistor coupled in parallel circuit, and the enabled input terminal of the resistance handover module connects resistance switching The double-throw contact of module and the switching control drive circuit, for when receiving switching signal, in resistor coupled in parallel electricity Switch between the connection on road and off-state.

4. device according to claim 3, it is characterised in that when the bus rod is three, the busbar switches mould Block and ground connection handover module use dpdt relay, and the power supply handover module uses single-pole single-throw(SPST relay.

5. a kind of hand-held cable continuity test system used for rail vehicle, it is characterised in that including main equipment and slave device；It is described Main equipment includes the hand-held cable connection test device used for rail vehicle described in claim 2, the first control module, the first nothing Line communication module, the pressure measurement circuit for detecting the voltage for testing busbar；The slave device includes the track described in claim 1 Vehicle hand-held cable connection test device, the second control module and the second wireless communication module；

First control module connects switching control drive circuit, first wireless communication module and the institute of the main equipment Pressure measurement circuit is stated, the pressure measurement circuit connects every test busbar in main equipment；Second control module connection it is described from The switching control drive circuit of equipment and second wireless communication module, first wireless communication module and second nothing Line communication module wireless connection；

The pressure measurement circuit, first control is sent to for the voltage of real-time testing test busbar, and by the voltage measured Module；

First control module, for by the first wireless communication module and the second wireless communication module to the second control module Send the test signal of test cable；After the handoff completion signal of the second control module transmission is received, to cutting for main equipment Change the test signal that control drive circuit sends test cable；The voltage that pressure measurement circuit is sent is received, determines to test according to voltage The test result of cable, the second control is sent to by test result by the first wireless communication module and the second wireless communication module Module；And after the preset time period of test result is sent to the second control module, pass through the first wireless communication module and the Two wireless communication modules send the test signal of test cable to second control module；

The switching control drive circuit of the main equipment, for the test signal of the test cable sent according to first control device Each busbar handover module, each ground connection handover module and each power supply handover module to the main equipment send switching signal, described The double-throw contact of each busbar handover module of main equipment, each ground connection handover module and each power supply handover module is believed according to the switching Number action；

Second control module, the test signal of the test cable for the first control module to be sent are sent to slave device Switching control drive circuit；The preset time of the test signal of test cable is sent in the switching control drive circuit to slave device Duan Hou, sends switching to the first control module by first wireless communication module and the second wireless communication module and completes letter Number；And after the test result of the first control module transmission is received, the switching control drive circuit to slave device, which is sent, to be surveyed Try the test signal of cable；

The switching control drive circuit of the slave device, each mother for the test signal according to test cable to the slave device Line handover module and each ground connection handover module send switching signal, each busbar handover module of the slave device and each ground connection switching The corresponding double-throw contact of module is acted according to the switching signal；

6. a kind of hand-held cable continuity test system used for rail vehicle based on described in claim 5 is used for rail vehicle hand-held Formula cable continuity test method, it is characterised in that including：

After on each busbar handover module that every cable to be tested is connected to main equipment and slave device, by the first line to be tested Cable is as current test cable, and the first control module is by the first wireless communication module and the second wireless communication module to described the Two control modules send the short-circuit test signal of current test cable, and the short-circuit test signal of the current test cable includes The label of current test cable；

The switching control that the short-circuit test signal of the current test cable is sent to slave device by the second control module drives electricity Road；The switching control drive circuit of slave device according to the short-circuit test signal of the current test cable to the slave device the One target bus handover module and the ground connection handover module that is connected with other bus rods send short-circuit switching signal, described from setting Standby first object busbar handover module and to the corresponding double-throw contact of the ground connection handover module of other bus rods connection according to The short circuit switching signal action；The first object busbar handover module is that the confluence being connected with the current test cable is female The busbar handover module that line is connected；Other bus rods of slave device are that cable is removed and currently tested in the bus rod of slave device Bus rod outside the test busbar of connection；

Second control module is led to after the preset time period that the switching control drive circuit to slave device sends short-circuit switching signal Cross first wireless communication module and the second wireless communication module and send short-circuit handoff completion signal to the first control module；The For one control module after the short-circuit handoff completion signal is received, the switching control drive circuit to main equipment sends current survey Try the short-circuit test signal of cable；

The switching control drive circuit of main equipment is according to the short-circuit test signal of the current test cable to the main equipment Second target bus handover module, the ground connection handover module being connected with other bus rods and first object power supply handover module hair Send short-circuit switching signal, the busbar handover module of the main equipment, ground connection handover module and the first mesh with other bus rods The double-throw contact for marking power supply handover module is acted according to the short-circuit switching signal；Other bus rods of main equipment are main equipment Bus rod in bus rod in addition to what is be connected with current test cable tests busbar；Second target bus switches mould Block is the busbar handover module that the test busbar being connected with the current test cable is connected；The first object power supply switches mould Block is the power supply handover module that the test busbar being connected with the current test cable is connected；

The voltage for the test busbar that pressure measurement circuit real-time testing is connected with the current test cable, and the voltage measured is sent To first control module, the first control module determines the short of the current test cable and other cables according to the voltage Drive test test result, the short-circuit test result is sent to by the first wireless communication module and the second wireless communication module described Second control module；

Second control module is after the short-circuit test result is received, the switching control drive circuit to the slave device Send the continuity test signal of current test cable；The switching control drive circuit of slave device is according to the current test cable Continuity test signal sends conducting switching signal to all ground connection handover modules of the slave device, and all of the slave device connect The double-throw contact of ground handover module is according to the conducting switching signal action；

Second control module is led to after the preset time period that the switching control drive circuit to slave device sends conducting switching signal Cross first wireless communication module and the second wireless communication module and send conducting handoff completion signal to the first control module；The For one control module after the conducting handoff completion signal is received, the switching control drive circuit to main equipment sends current survey Try the continuity test signal of cable；

The switching control drive circuit of main equipment is according to the continuity test signal of the current test cable to the main equipment The ground connection handover module being connected with other bus rods sends conducting switching signal, and the main equipment connects with other test busbares The double-throw contact of the ground connection handover module connect is according to the conducting switching signal action；

The voltage for the test busbar that pressure measurement circuit real-time testing is connected with the current test cable, and the voltage measured is sent To first control module, the first control module determines the continuity test knot of the current test cable according to the voltage Fruit, second control is sent to by the continuity test result by the first wireless communication module and the second wireless communication module Module；

First control module to the second control module after the preset time period of continuity test result is sent, by the second line to be tested Cable is sent out as current test cable by the first wireless communication module and the second wireless communication module to second control module The continuity test signal of current test cable is sent, the continuity test signal of the current test cable includes currently testing cable Label, the second test cable is to be measured with the described first be connected in a busbar handover module one of test cable Try cable；

The switching control that the continuity test signal of the current test cable is sent to slave device by the second control module drives electricity Road；The switching control drive circuit of slave device according to the continuity test signal of the current test cable to the slave device the One target earth handover module, the second target earth handover module send conducting switching signal, the first object of the slave device The corresponding double-throw contact of handover module, the second target earth handover module is grounded according to the conducting switching signal action；It is described First object ground connection handover module is the ground connection handover module that the test busbar being connected with the described first test cable is connected, described Second target earth handover module is the ground connection handover module that the test busbar being connected with the described second test cable is connected；

The switching control drive circuit of main equipment is according to the continuity test signal of the current test cable to the main equipment First object power supply handover module, the second target power handover module send conducting switching signal, the first mesh of the main equipment The double-throw contact of power supply handover module, the second target power handover module is marked according to the conducting switching signal action；Described Two target power handover modules are the power supply handover module that the test busbar being connected with the current test cable is connected；

The voltage for the test busbar that pressure measurement circuit real-time testing is connected with the current test cable, and the voltage measured is sent To first control module, the first control module determines the continuity test knot of the second test cable according to the voltage Fruit, second control is sent to by the continuity test result by the first wireless communication module and the second wireless communication module Module；

Second control module is after the continuity test result is received, the switching control drive circuit to the slave device Send the short-circuit test signal of current test cable；The switching control drive circuit of slave device is according to the current test cable Short-circuit test signal sends short-circuit switching signal to all ground connection handover modules of the slave device, and all of the slave device connect The double-throw contact of ground handover module is acted according to the short-circuit switching signal；

The switching control drive circuit of main equipment is according to the short-circuit test signal of the current test cable to the main equipment The ground connection handover module being connected with other bus rods sends conducting switching signal, and the main equipment connects with other bus rods The double-throw contact of the ground connection handover module connect is acted according to the short-circuit switching signal；

The voltage for the test busbar that pressure measurement circuit real-time testing is connected with the current test cable, and the voltage measured is sent To first control module, the first control module determines the short of the current test cable and other cables according to the voltage Drive test test result, the short-circuit test result is sent to by the first wireless communication module and the second wireless communication module described Second control mould；

Second control module is after the short-circuit test result is received, by the 3rd in first object busbar handover module Cable to be tested repeats the switching control drive circuit to the slave device and sends current test cable as current test cable Continuity test signals step, until the last item in the first object busbar handover module busbar handover module is to be tested Cable completes continuity test.

7. a kind of hand-held cable continuity test system used for rail vehicle, it is characterised in that including main equipment and slave device；It is described Main equipment includes hand-held cable connection test device used for rail vehicle described in claim 3 or 4, the first control module, the One wireless communication module, the pressure measurement circuit for detecting the voltage for testing busbar；The slave device is included described in claim 1 Hand-held cable connection test device, the second control module and the second wireless communication module used for rail vehicle；

The switching control drive circuit of the main equipment, for the test signal of the test cable sent according to first control device Each busbar handover module, each ground connection handover module and each power supply handover module to the main equipment send switching signal, described Each busbar handover module of main equipment, respectively the switching of ground connection handover module, each resistance handover module and each power supply handover module is touched Point is acted according to the switching signal；

8. a kind of hand-held cable continuity test system used for rail vehicle based on described in claim 7 is used for rail vehicle hand-held Formula cable continuity test method, it is characterised in that including：

The switching control drive circuit of main equipment is according to the short-circuit test signal of the current test cable to the main equipment Second target bus handover module, the ground connection handover module being connected with other bus rods, first object power supply handover module and Resistance handover module be connected with current test busbar sends short-circuit switching signal, the busbar handover module of the main equipment and Ground connection handover module, first object power supply handover module and the resistance being connected with current test busbar of other bus rod connections The double-throw contact of handover module is acted according to the short-circuit switching signal；Other bus rods of main equipment are the confluence of main equipment Bus rod in busbar in addition to the test busbar being connected with current test cable；The second target bus handover module be with The busbar handover module that the test busbar of the current test cable connection is connected；The first object power supply handover module be with The power supply handover module that the test busbar of the current test cable connection is connected；The current test busbar is and currently tests The test busbar of cable connection；

The switching control drive circuit of main equipment is according to the continuity test signal of the current test cable to the main equipment The ground connection handover module being connected with other bus rods and the resistance handover module transmission conducting being connected with current test busbar are cut Change signal, the ground connection handover module being connected with other test busbares of the main equipment and the resistance being connected with current test busbar The double-throw contact of handover module is according to the conducting switching signal action；

The switching control drive circuit of main equipment is according to the short-circuit test signal of the current test cable to the main equipment The ground connection handover module being connected with other bus rods and the resistance handover module transmission conducting being connected with current test busbar are cut Change signal, the ground connection handover module being connected with other bus rods of the main equipment and the resistance being connected with current test busbar The double-throw contact of handover module is acted according to the short-circuit switching signal；