CN108089055A - A kind of testing lines device and its test method - Google Patents
A kind of testing lines device and its test method Download PDFInfo
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- CN108089055A CN108089055A CN201611040625.6A CN201611040625A CN108089055A CN 108089055 A CN108089055 A CN 108089055A CN 201611040625 A CN201611040625 A CN 201611040625A CN 108089055 A CN108089055 A CN 108089055A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention provides a kind of testing lines device, including：Microprocessor, collecting test module, wireless communication module and battery；The microprocessor for exporting control signal to the collecting test module, receives the test data of collecting test module output, sends and/or receive the test data, test result by the wireless communication module；The collecting test module, for simultaneously output drive signal to tested cable, to be acquired the electrical parameter on the cable to obtain the test data, and exports the test data according to control signal generation；The wireless communication module, for test data, the test result to be sent and/or received by wireless communication technique；Wherein, which is by boosting to obtain the output voltage of the battery.In addition the present invention also provides a kind of testing lines method, the especially test of wire size correspondence, insulation resistance, proof voltage tests.
Description
Technical field
Test more particularly to a kind of testing lines device and its test method the invention mainly relates to cable.
Background technology
Carrier of the airborne core of a cable of aero-engine (hereinafter referred to as cable) as electrical interconnection, substantial amounts.It is navigating
In the non-laboratory situations such as empty engine test and malfunction elimination, often it is related to the performance detection of cable, common test
Method has the following two kinds：(1) manually detected after cable is removed by root；(2) cable automatic test equipment and very long survey are used
Trial work wiring cable carries out on-line measurement in the case where not dismantling engine cable.
For (1) kind mode, since engine testsand is mostly lift-on/lift-off type (Engine Hoisting is in the air), and send out
There are many motivation cable and corresponding fixed structure (stent, clip) quantity, the dismounting for causing engine cable and installation fee again
When it is laborious.
For (2) kind mode, although can also be started by using longer test fixture cable not dismantling
On-line testing is realized in the case of machine cable, but since connector plug is usually more, engine and testboard it is distant
(being usually not less than 10m) so that test fixture cable is tediously long and heavy, brings using upper inconvenience, and frock cable is general
Property is very poor.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of testing lines device and its test methods, can improve test
Ease for use, the versatility of device, and then improve the efficiency of cable on-line testing.
In order to solve the above technical problems, an aspect of of the present present invention provides a kind of testing lines device, including：Microprocessor
Device, collecting test module, wireless communication module and battery；The microprocessor controls for being exported to the collecting test module
Signal receives the test data of collecting test module output, sends and/or receive the test number by the wireless communication module
According to, test result；The collecting test module, for according to control signal generation and output drive signal is to tested cable,
Electrical parameter on the cable is acquired to obtain the test data, and exports the test data；The wireless communication module is used
In pass through wireless communication technique send and/or receive test data, the test result；Wherein, which is by should
The output voltage of battery boosts to obtain.
In one embodiment of this invention, the voltage of the pumping signal is hectovolt magnitude.
In one embodiment of this invention, which includes acquisition module and test and excitation generation module, should
For being acquired to obtain the test data to the electrical parameter on the cable, which is used for acquisition module
According to control signal generation and output drive signal is to tested cable.
In one embodiment of this invention, which includes booster circuit, which includes：
PWM driving chips have input port INA, input port INB, output port OUTA, output port OUTB, wherein, input terminal
Mouthful INA receives PWMH signals, and input port INB receives PWML signals, the PWM driving chips according to the PWMH signals of the input and
PWML signals are in output port OUTA, output port OUTB output pulse signals；One end of output port OUTA and resistance R1, two
The cathode of pole pipe D1 connects respectively, and the other end of resistance R1, the anode of diode D1 connect respectively with the grid of switching tube S1
Connect, the source electrode of switching tube S1 is connected with the anode of diode D6, power input negative pole end, the drain electrode of switching tube S1 with this two
The cathode of pole pipe D6, a tap of the primary coil N2 of transformer connect respectively, the cathode of zener diode D2, resistance R2
One end is connected with the anode of diode D1, the anode of zener diode D2, the other end ground connection of resistance R2；Output port
OUTB is connected respectively with one end of resistance R3, the cathode of diode D3, the other end of resistance R3, the anode of diode D3 point
Grid not with switching tube S2 is connected, and the source electrode of switching tube S2 is connected with the anode of diode D5, the power input negative pole end,
The drain electrode of switching tube S2 is connected respectively with a tap of the cathode of diode D5, the primary coil N1 of the transformer, surely
The cathode of pressure diode D4, one end of resistance R4 are connected with the anode of diode D3, anode, the electricity of zener diode D4
Hinder the other end ground connection of R4；Another tap of the primary coil N1 of the power input positive terminal and the transformer, primary coil
Another tap of N2 connects respectively, power input negative pole end ground connection；Two taps of the secondary coil N3 of the transformer
One is connected with the anode of diode D7, the cathode of diode D8, two taps of the secondary coil N3 of the transformer it is another
It is a to be connected with the anode of diode D9, the cathode of diode D10, the cathode of diode D7, the cathode difference of diode D9
It is connected with one end of inductance L, the other end of inductance L is connected with one end of capacitance C, power supply output cathode end, diode D8
Anode, diode D10 anode respectively with the other end of capacitance C, power supply export negative pole end be connected.
In one embodiment of this invention, which is high frequency transformer.
Another aspect provides a kind of testing lines methods, include the following steps：S1：It will be multiple as described above
Testing lines device be connected on tested cable, each testing lines device opens multiple sections as a node
The power supply of point；S2：Multiple nodes two-by-two between establish connection, and elect a node as host node；S3：By the host node
Multiple nodes is organized to test the cable；S4：To the node that the cable is tested by test data and/or test
As a result the host node is sent to, which is handled to obtain final survey to the test data and/or the test result
Test result, and the final test result is sent to portable terminal.
In one embodiment of this invention, the test carried out by the multiple nodes of the host node tissue to the cable is wire size
Correspondence is tested.
In one embodiment of this invention, which, which tests, is：Multiple nodes are randomly assigned by the host node
In a node as test node, remaining node is as acquisition node in multiple nodes；The test node is in the master
It under the tissue of node, communicates with the acquisition node, tests all contacts on the connector plug being connected with the test node
Line relation；After the completion of the test node is tested, host node is specified next as the survey in multiple nodes
Examination node carries out wire size correspondence test, until traveling through all nodes in multiple nodes.
In one embodiment of this invention, the test carried out by the multiple nodes of the host node tissue to the cable is insulation
Resistance, proof voltage test.
In one embodiment of this invention, the insulation resistance to the cable, proof voltage, which are tested, is：It is specified by the host node more
A node in a node is in running order, remaining node keeps silent in multiple nodes；It is in running order
The node test its connector plug for being connected on insulation resistance between all contact-contacts, contact-housing
And/or leakage current index；After the completion of the in running order node test, which specifies next in multiple nodes
A node is tested.
Compared with prior art, the present invention has the following advantages：The testing lines device of the present invention uses battery booster
Pumping signal is generated, and efficiency and the survey of test are improved instead of heavy, interminable test fixture cable using wireless communication
Try the ease for use of equipment；The testing lines device of the present invention can adapt in different tested cables, more without preparing
The various test fixture cable of kind, improves the versatility of test, also saves cost；The testing lines device volume of the present invention
It is small, it is light-weight, it is easy to carry；In addition, the testing lines device of the present invention can intelligent networking, the wind of Single Point of Faliure can be avoided
Danger, while server is not required.
Description of the drawings
Fig. 1 is the schematic diagram of the airborne testing lines system of aero-engine of one embodiment of the invention.
Fig. 2 is the structure diagram of the testing lines device of one embodiment of the invention.
Fig. 3 is the circuit diagram of the booster circuit in the test and excitation generation module of one embodiment of the invention.
Fig. 4 is the flow chart of the testing lines method of one embodiment of the invention.
Specific embodiment
For the above objects, features and advantages of the present invention can be clearer and more comprehensible, below in conjunction with attached drawing to the tool of the present invention
Body embodiment elaborates.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented using other different from other manner described here, therefore the present invention is from the limit of following public specific embodiment
System.
Although embodiments of the present invention are the testing lines devices using the airborne cable of aero-engine as the present invention
Test object, but the test object of the testing lines device of the present invention is not limited to time.For example, testing lines of the invention
Device can be also used for the cable in test aircraft cabin, submarine nacelle, submarine engine etc..
Fig. 1 is the schematic diagram of the airborne testing lines system of aero-engine of one embodiment of the invention.With reference to figure 1, this hair
It (is three testing lines devices in embodiment shown in FIG. 1 that bright testing lines system, which includes multiple testing lines devices 100,
100-A, 100-B, 100-C) and portable terminal 200.Aero-engine 400 is lifted on test bay rack 500, aeroplane engine
The airborne cable 300 of machine 400 is the tested cable of the present embodiment.
In test, by connector plug 310-A, 310-B, 310-C of cable 300 from electronic equipment, the electricity connected
It is disconnected in gas equipment, and three testing lines devices 100-A, 100-B, 100-C of the present invention is connected respectively to connector and are inserted
On head 310-A, 310-B, 310-C, each testing lines device 100 is used as a node.To all testing lines devices
100 power on, and testing lines device 100-A, 100-B, 100-C is selected by wireless communication technique automatic network-building, and according to agreement
Possess unique testing lines device 100 of a certain feature as host node, network is managed by host node, and is organized all
Node cable 300 is tested.In test process, other nodes outside host node can will join the electricity on cable 300
Test data, test result are sent to host node by wireless communication technique obtained from number acquisition, in host node to receiving
Test data, after test result handled, final test result is sent to portable terminal by wireless communication technique
End 200.Wherein, test data is node to acquired original data, test result obtained from the electrical parameter acquisition on cable 300
To carry out treated intermediate result or final result to test data.It should be understood that other nodes outside host node also may be used
Under the tissue of host node, test data, test result are transmitted directly to portable terminal by wireless communication technique
200.Heretofore described wireless communication technique can be ZigBee, bluetooth, WiFi, 2G (GSM, CDMA 1x), 3G
The wireless communication techniques such as (WCDMA, CDMA2000, TD-SCDMA), LTE, so as to realizing not less than reliable logical in the range of 30m
Letter.It should be understood that during to testing lines the number of used testing lines device 100 it is unlimited in this present embodiment three
It is a, can be that connector plug number etc. is specifically selected according to possessed by cable.
Portable terminal 200 can have display screen, and in Commissioning field, tester can be in real time from portable terminal
200 check test result and report.Portable terminal 200 can also have data-interface, such as USB interface, fire-wire interfaces, can
Test data, test result are exported to PC, server etc. from portable terminal 200.Portable terminal 200 can
To be smart mobile phone, tablet computer etc..
The testing lines device 100 of the present invention is powered using battery, and is communicated using wireless communication technique, nothing
Heavy, interminable test fixture cable is needed, multiple voluntarily networkings of testing lines device 100 without server, improve cable survey
The ease for use of test system, reduces cost.
Further, since the testing lines device 100 of the present invention is powered using battery, and using wireless communication technique into
Row communication, without heavy, interminable test fixture cable, therefore the testing lines device of the present invention has smaller volume, compared with
Light weight is highly susceptible to carrying.
As a result of above-mentioned testing lines device 100 and portable terminal 200, maximum feature of the invention is can
While ensureing to minimize and is portable, meet the Hi-pot test requirement of the airborne cable of aero-engine.
Fig. 2 is the structure diagram of the testing lines device of one embodiment of the invention.With reference to figure 2, testing lines device 100 has
There are microprocessor 110, collecting test module 120, wireless communication module 130, battery 140.Collecting test module 120, channel radio
Letter module 130 is connected respectively with microprocessor 110, and battery 140 can be microprocessor 110, collecting test module 120, wireless
Communication module 130 provides power supply.
Microprocessor 110 outputs a control signal to collecting test module 120, to control the work of collecting test module 120
Operation mode.Microprocessor 110 also receives the test data of the output of collecting test module 120.When testing lines device 100 is as master
During node, microprocessor 110 also receives other node (remaining lines i.e. in addition to host node is used as by wireless communication module 130
Cable test device 100) test data, the test result that send, and to the test data of host node itself acquisition, other nodes adopt
Test data, the test result of collection are handled, and are then sent to final test result just by wireless communication module 130
Take formula terminal 200.When testing lines device 100 is as other nodes, microprocessor 110 will connect from collecting test module 120
The test data received is sent to host node by wireless communication module 130.It should be understood that microprocessor 110 can also be right
The test data received from collecting test module 120 is handled, and handling result then is sent to host node.It is appreciated that
, microprocessor 110 of the invention can be the circuit mould with computing, control function being made of on one or more chips
Block.
The control signal that collecting test module 120 is exported according to microprocessor 110, output drive signal are right to cable 300
Electrical parameter on cable 300 is acquired, and so as to obtain test data, and obtained test data is sent to microprocessor
110.Collecting test module 120 has acquisition module 121 and test and excitation generation module 122.Acquisition module 121 is used for according to micro-
The control signal of processor 110 is acquired the electrical parameter on cable 300, to obtain test data.Test and excitation generates mould
Block 122 is used to generate pumping signal according to the control signal of microprocessor 110, and pumping signal is output on cable 300.This
The pumping signal of invention is by boosting to obtain cell voltage, correspondingly, having boosting in test and excitation generation module 122
Circuit.
Since testing lines generally comprise insulation resistance, proof voltage test, this just needs testing lines device to be capable of providing
Direct current, the alternating test voltage of hundreds of volts.The testing lines device 100 of the present invention, will using booster circuit using battery powered
Cell voltage boosts to hundreds of volts to generate pumping signal so that testing lines device 100 is realized in the case of small volume
Hi-pot test.Further, since engine cable is usually shorter (parasitic capacitance is smaller), the testing time is shorter, measured power compared with
Small, testing lines device 100 of the invention can be good at the test suitable for this condition.
Fig. 3 is the circuit diagram of the booster circuit in the test and excitation generation module of one embodiment of the invention.Reference chart
3, booster circuit is made of PWM driving chips, transformer, switching tube, diode, voltage-stabiliser tube, resistance and capacitance etc..It is specific and
Speech, PWM driving chips have input port INA, input port INB, output port OUTA, output port OUTB, wherein, input
Port INA receives PWMH signals, and input port INB receives PWML signals, PWM driving chips according to the PWMH signals of input and
PWML signals are in output port OUTA, output port OUTB output pulse signals.One end of output port OUTA and resistance R1, two
The cathode of pole pipe D1 connects respectively, and the grid of the other end of resistance R1, the anode of diode D1 respectively with switching tube S1 is connected, and is opened
The source electrode for closing pipe S1 is connected with anode, the power input negative pole end of diode D6, the drain electrode of switching tube S1 and bearing for diode D6
Pole, a tap of primary coil N2 for transformer connect respectively, the cathode of zener diode D2, one end of resistance R2 and two poles
The anode connection of pipe D1, the anode of zener diode D2, the other end ground connection of resistance R2.The one of output port OUTB and resistance R3
End, the cathode of diode D3 connect respectively, and the other end of resistance R3, the anode of diode D3 connect respectively with the grid of switching tube S2
It connects, the source electrode of switching tube S2 is connected with the anode of diode D5, power input negative pole end, drain electrode and the diode D5 of switching tube S2
Cathode, a tap of primary coil N1 for transformer connect respectively, the cathode of zener diode D4, one end of resistance R4 with
The anode connection of diode D3, the anode of zener diode D4, the other end ground connection of resistance R4.Power input positive terminal and transformation
Another tap of the primary coil N1 of device, another tap of primary coil N2 connect respectively, power input negative pole end ground connection.
One of two taps of the secondary coil N3 of transformer is connected with the cathode of the anode of diode D7, diode D8, transformer
Another of two taps of secondary coil N3 be connected with the anode of diode D9, the cathode of diode D10, diode D7's
The one end of cathode, the cathode of diode D9 respectively with inductance L is connected, and the other end of inductance L is exported with one end of capacitance C, power supply
Positive terminal connects, the negative pole end that the anode of diode D8, the anode of diode D10 export respectively with the other end of capacitance C, power supply
Connection.
It is input to the PWMH signals of PWM driving chips, PWML signals are by other electricity in test and excitation generation module 122
The control signal that road is exported according to microprocessor 110 generates.PWMH signals, PWML signals through PWM driving chips amplification after, to
Control the opening and closing of switching tube S1, switching tube S2.Switching tube S1 and switching tube S2 is used for controlling cutting for transformer primary direct current
It changes, so as to generate high-frequency pulse voltage.Boosting of the high-frequency pulse voltage of transformer primary through transformer, in transformer secondary output
Side obtains required continuous current excitation signal after bridge rectifier and filtering.
Preferably, the transformer of the present embodiment is high frequency transformer.The dominant loss of transformer at work be magnetic core and
Coil loss, in order to reduce core loss, magnetic conductivity height may be employed in transformer, and resistivity is high, and hysteresis loop is narrow, coercivity
It is small, the high core material of saturation induction density.Preferably, the magnetized change of bipolarity may be employed in the transformer in the present embodiment
Depressor, one times more than unipolar magnetic induction scope, therefore the leakage inductance of the booster in the present embodiment and line loss compare unipolarity
Small is more, circuit efficiency higher.
In addition, compared to common inverse-excitation type, positive activation type booster circuit, the booster circuit primary side current in the present embodiment
By the parasitic diode afterflow of switching tube S1, switching tube S2, the energy stored in transformer leakage inductance is returned to input terminal, is reduced
The shut-off spike that switching tube S1, switching tube S2 are born, while also improve efficiency.
It should be understood that booster circuit shown in Fig. 3 is a kind of preferred form of the booster circuit of the present invention, the present invention
Booster circuit be not limited to this, such as series-resonant inverting booster circuit may be employed.
With continued reference to Fig. 2, wireless communication module 130 is used to send by wireless communication technique, receives test data, test
As a result.When testing lines device 100 is as host node, wireless communication module 130 is handled for sending through microprocessor 110
The final test result arrived is to portable terminal 200.When testing lines device 100 is as other node (non-master),
Wireless communication module 130 is used to send test data, the test result to host node of the output of microprocessor 110.It should be understood that
No matter testing lines device 100 is as host node or other nodes, and wireless communication module 130 may be used to micro- place
Test data, the test result that reason device 110 exports are transmitted directly to portable terminal 200.
Battery 140 is used to provide power supply for entire testing lines device 100, can be divided mainly into two parts, a part is normal
Cell voltage is converted into voltage needed for microprocessor 110, wireless communication module 130 etc. with right by rule through power module 160
These circuits provide power supply；Another part is one of innovative point of the present invention, uses battery 140 as test and excitation generation module
122 provide power supply, to generate pumping signal.
Testing lines device 100 can also include connector body 150, for the connector plug 310 on cable 300
It is docked.It should be understood that connector body 150 possessed by the testing lines device 100 of the present invention can be replaced,
To be adapted to connector plug 310 different on cable 300.
Testing lines device 100 can also have storage unit 170, for storing the testing lines device for realizing the present invention
Program, data needed for 100 function etc..
Fig. 4 is the flow chart of the testing lines method of one embodiment of the invention.With reference to figure 4, testing lines method is included such as
Lower step：
S1：The testing lines device of multiple present invention is connected on tested cable, each testing lines device conduct
One node opens the power supply of multiple nodes；
S2：Multiple nodes two-by-two between establish connection, and elect a node as host node；
S3：Cable is tested by host node tissue multiple nodes；
S4：Host node is sent to by test data, test result to the node that cable is tested, host node is to testing number
It is handled to obtain final test result, and final test result is sent to portable terminal according to, test result.
It should be understood that the node tested cable test data, test result can be transmitted directly to it is portable
Formula terminal.Preferred scheme carries out these data by host node for test data, test result first are sent to host node
Reason, then final result is sent to portable terminal 200.So without portable terminal 200 or server etc. to testing number
According to being handled, the performance requirement of portable terminal 200 is reduced.Due in entire test process, the ginseng without server
With, it is only necessary to testing lines device 100 and portable terminal 200 ensure that the portability of testing lines system.
Multiple nodes two-by-two between establish connection the step of include：Multiple nodes are simultaneously emitted by broadcast singal, with node A and section
Exemplified by point B, after node B receives the broadcast singal of node A, send one to node A and confirm bag (ACK), node A receives confirmation bag
Afterwards, the address of node B is stored in address table, after same node A receives the broadcast singal of node B, is also sent to node B true
Recognize bag, carry out two-way confirmation.Similarly, each node in multiple nodes can be established with other nodes and connected.
Host node is to select the unique testing lines device 100 for possessing a certain feature according to agreement to serve as, therein a certain
Feature can be that available machine time stamp is connected signal strength most uniformly (variance i.e. between signal strength is minimum) earliest, with other nodes
Deng.Host node is also managed network, with the addition of timely processing node, exits.Specifically, host node gives each node
A network address is distributed, when a node adds in, host node distributes a network address to new node；When some node moves back
When going out, host node recycles the network address.
The multiple nodes of host node tissue can include wire size correspondence, insulation resistance, proof voltage to the test of cable to be tested.
The connection relation between contact on wire size correspondence test i.e. test cable in multiple connector plugs, it is assumed that
Cable has two plug A, plug B connector plugs, has contact a1, a2, a3 in plug A, has contact in plug B
B1, b2, b3, the wire size correspondence test i.e. connection relation of test contact a1, a2, a3 and contact b1, b2, b3.
Wire size correspondence test in the present embodiment includes：A node being randomly assigned by host node in multiple nodes is made
For test node, remaining node is as acquisition node in multiple nodes；Test node saves under the tissue of host node with acquisition
The line relation of all contacts on the connector plug being connected with test node is tested in point communication；In a test node
After the completion of test, host node specifies next conduct test node in multiple nodes to carry out wire size correspondence test, until time
Go through all nodes in multiple nodes.
The line relation for the contact being exemplified below on the connector plug that test is connected with test node can adopt
Method.Assuming that test node loads a voltage, detection node inspection between the housing of the contact a1 and plug A of plug A
At least one of voltage between contact b1, b2, b3 of plug B and the housing of plug B, electric current are surveyed, wherein plug A's
Housing is used with the housing of plug B to be connected by shielding line or is connected by way of common ground.If detection node detects contact
There are voltage between part b1 and housing, then illustrate that contact a1 and contact b1 is connected with each other.Further, it is also possible to pass through detection two
Resistance between a contact judges whether the two contacts connect, such as can be small by the measurement resistance between two contacts
It is determined as that the two contacts interconnect in 10 Ω.Although it is with cable tool there are two connector, often in this illustration
A connector tool there are three exemplified by contact, it is to be understood that, the present invention is to the quantity of connector possessed by cable, each
The quantity of contact possessed by connector is not restricted.
The test node of general engine cable has dozens of, if when determining test node, using seizing mould
Formula can then cause the node of network internal to be given out a contract for a project delay, and signal is busy, this unordered to seize and collide meeting if do not organized
Image efficiency.If by the way of condition poll, host node is needed periodically to send broadcast token, giving out a contract for a project when each node needs
When asking serious different, it can cause largely to make a turn, image efficiency.The present invention is had according to the test of engine cable wire size correspondence
The characteristics of two nodes is only needed to be communicated most times, using it is simple specify node test order by the way of,
Not only it is simple, but also efficiency can be improved.
Insulation resistance, proof voltage test include：Specify a node in multiple nodes in running order by host node,
Remaining node keeps silent in multiple nodes；Own on its connector plug for being connected of in running order node test
Insulation resistance and/or leakage current index between contact-contact, contact-housing；In running order node test is complete
Cheng Hou, host node specify the next node in multiple nodes to be tested.
All contacts in running order node test its connector plug for being connected-connect are exemplified below
The method that insulation resistance and/or leakage current index between contact element, contact-housing may be employed.It is assuming that in running order
Its connector plug C connected of node test has contact c1, c2, c3, then the test of in running order node swashs
It encourages generation module 122 and applies hundreds of volts between c1-c2, c1-c3, c2-c3, c1- housing, c2- housings, c3- housings respectively
Direct current or alternating voltage are as pumping signal, and acquisition module 121 is respectively these contact-contacts, contact-housing
Insulation resistance, leakage current are tested.
Although the present invention is described with reference to current specific embodiment, those of ordinary skill in the art
It should be appreciated that above embodiment is intended merely to illustrate the present invention, can also make in the case of without departing from spirit of the invention
Go out various equivalent change or replacement, therefore, as long as variation, change in the spirit of the present invention to above-described embodiment
Type will all fall in the range of following claims.
Claims (10)
1. a kind of testing lines device, which is characterized in that including：Microprocessor, collecting test module, wireless communication module and
Battery；
The microprocessor for exporting control signal to the collecting test module, receives the test of collecting test module output
Data are sent and/or are received the test data, test result by the wireless communication module；
The collecting test module, for simultaneously output drive signal to be to tested cable according to control signal generation, to the cable
On electrical parameter be acquired to obtain the test data, and export the test data；
The wireless communication module, for test data, the test result to be sent and/or received by wireless communication technique；
Wherein, which is by boosting to obtain the output voltage of the battery.
2. the apparatus according to claim 1, it is characterised in that：The voltage of the pumping signal is hectovolt magnitude.
3. device according to claim 1 or 2, it is characterised in that：The collecting test module includes acquisition module and test
Generation module is encouraged, the acquisition module is for being acquired the electrical parameter on the cable to obtain the test data, the test
Encourage that generation module is used for according to control signal generation and output drive signal is to tested cable.
4. device according to claim 3, it is characterised in that：The test and excitation generation module includes booster circuit, the liter
Volt circuit includes：
PWM driving chips have input port INA, input port INB, output port OUTA, output port OUTB, wherein, it is defeated
Inbound port INA receives PWMH signals, and input port INB receives PWML signals, which believes according to the PWMH of the input
Number and PWML signals in output port OUTA, output port OUTB output pulse signals；
Output port OUTA is connected respectively with one end of resistance R1, the cathode of diode D1, the other end of resistance R1, two pole
Grid of the anode of pipe D1 respectively with switching tube S1 is connected, the source electrode of switching tube S1 and the anode of diode D6, power input
Negative pole end connects, the drain electrode of switching tube S1 and a tap point for the cathode of diode D6, the primary coil N2 of transformer
It does not connect, the cathode of zener diode D2, one end of resistance R2 are connected with the anode of diode D1, zener diode D2's
The other end ground connection of anode, resistance R2；
Output port OUTB is connected respectively with one end of resistance R3, the cathode of diode D3, the other end of resistance R3, two pole
Grid of the anode of pipe D3 respectively with switching tube S2 is connected, and the source electrode of switching tube S2 and the anode of diode D5, the power supply are defeated
Enter negative pole end connection, the drain electrode of switching tube S2 and a pumping of the cathode of diode D5, the primary coil N1 of the transformer
Head connects respectively, and the cathode of zener diode D4, one end of resistance R4 are connected with the anode of diode D3, the zener diode
The other end ground connection of the anode of D4, resistance R4；
Another tap, another tap of primary coil N2 of the power input positive terminal and the primary coil N1 of the transformer
It connects respectively, power input negative pole end ground connection；
One of two taps of the secondary coil N3 of the transformer is connected with the cathode of the anode of diode D7, diode D8,
Another of two taps of the secondary coil N3 of the transformer is connected with the anode of diode D9, the cathode of diode D10, should
The one end of the cathode of diode D7, the cathode of diode D9 respectively with inductance L is connected, and the other end of inductance L is with capacitance C's
One end, the connection of power supply output cathode end, the anode of diode D8, the anode of diode D10 are another with capacitance C respectively
End, the negative pole end connection of power supply output.
5. device according to claim 4, it is characterised in that：The transformer is high frequency transformer.
A kind of 6. testing lines method, which is characterized in that include the following steps：
S1：Multiple such as claim 1-5 any one of them testing lines devices are connected on tested cable, each line
Cable test device is as a node, the power supply of the multiple nodes of unlatching；
S2：Multiple nodes two-by-two between establish connection, and elect a node as host node；
S3：The cable is tested by the host node tissue multiple nodes；
S4：Test data and/or test result are sent to the host node by the node tested the cable, the host node
Handled to obtain final test result to the test data and/or the test result, and by the final test result
It is sent to portable terminal.
7. according to the method described in claim 6, it is characterized in that：The cable is carried out by the host node tissue multiple nodes
Test be wire size correspondence test.
8. according to the method described in claim 7, it is characterized in that：The wire size correspondence is tested：
A node in multiple nodes is randomly assigned as test node by the host node, remaining in multiple nodes saves
Point is as acquisition node；
The test node communicates under the tissue of the host node with the acquisition node, tests the connection being connected with the test node
The line relation of all contacts on device plug；
After the completion of test node is tested, host node specify in multiple nodes it is next as the test node into
Row wire size correspondence test, until traveling through all nodes in multiple nodes.
9. according to the method described in claim 6, it is characterized in that：The cable is carried out by the host node tissue multiple nodes
Test be insulation resistance, proof voltage test.
10. according to the method described in claim 9, it is characterized in that：Insulation resistance, proof voltage test to the cable are：
Specify a node in multiple nodes in running order by the host node, remaining node is protected in multiple nodes
Hold silence；
All contact-contacts, contact-shell on its connector plug for being connected of the in running order node test
Insulation resistance and/or leakage current index between body；
After the completion of the in running order node test, which specifies the next node in multiple nodes to be surveyed
Examination.
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Application publication date: 20180529 |