CN201247297Y - Test device for multi-core cable connecting line - Google Patents
Test device for multi-core cable connecting line Download PDFInfo
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- CN201247297Y CN201247297Y CNU2008201142300U CN200820114230U CN201247297Y CN 201247297 Y CN201247297 Y CN 201247297Y CN U2008201142300 U CNU2008201142300 U CN U2008201142300U CN 200820114230 U CN200820114230 U CN 200820114230U CN 201247297 Y CN201247297 Y CN 201247297Y
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Abstract
The utility model discloses a multi-core cable connecting line testing device, which comprises a control computer and a data gathering card and a cable connecting line testing module, wherein the cable connecting line testing module is connected with two ends of a test cable, the control computer is used to drive the data gathering card, and analyzes the make-break modes of the test cable according to the output signals which are delivered back by the data gathering card. The data gathering card is used to input signals to one end of the test cable through the cable connecting line testing module under the driven of the control computer, and output signals of the other end of the test cable are adopted, and the output signals are delivered back to the control computer. The multi-core cable connecting line testing device provided by the utility model has stronger flexibility, which can conveniently and accurately test cable connecting lines with various specifications.
Description
Technical field
The utility model relates to the measurement mechanism field, particularly relates to a kind of polycore cable connecting line proving installation.
Background technology
In current power electronic equipment, polycore cable is widely used in inner each module of connection device, to transmit electric energy or electric signal.
In the reality, the problem of bringing because of the polycore cable fault often appears.For example, because the loose contact of the inner open circuit of polycore cable or polycore cable and plug is when causing engineering staff's installation, maintenance equipment, false judgment is exchange device more for equipment is made mistakes; And for example, because short circuit between polycore cable internal short-circuit or plug pin, direct infringement equipment etc. when causing switching on.
Therefore, the polycore cable connecting line by cables manufacturing department produces must can dispatch from the factory through strict test.But,, make the test of polycore cable connecting line have diversity, complicacy because the connected mode of the polycore cable connecting line of different manufacturers production has very big difference.Therefore, it is crucial developing open circuit, the short circuit that a kind of polycore cable connecting line proving installation comes accurately, fast, comprehensively tests polycore cable.
Generally adopt the manual test method to test to the polycore cable connecting line, but this method efficient is very low, and has comprised people's subjective factor.In the prior art, a kind of device of testing as control chip transmission test vector with sampling single-chip microcomputer or digital signal processor (DSP:Digital Signal Processing) is arranged.Though this device has improved the efficient of test, but dirigibility is very poor, when test cable that increases new model or change connection pin, the hardware and software of device all needs to change accordingly, can not realize the test to the polycore cable of all size easily.
The utility model content
Technical problem to be solved in the utility model provides a kind of polycore cable connecting line proving installation, can realize easily the polycore cable connecting line of all size is tested.
The utility model provides a kind of polycore cable connecting line proving installation, and this device comprises control computer, data collecting card and cable link test module, and wherein, described cable link test module connects the test cable two ends; Described control computer is used to drive described data collecting card, and according to the output signal that described data collecting card is passed back, analyzes the on off operating mode of described test cable; Described data collecting card, be used under the driving of described control computer, by described cable link test module, to described test cable one end input signal, gather the output signal of the described test cable other end, and pass described output signal back described control computer.
Wherein, described cable link test module comprises signal port, first test port and second test port, and described signal port links to each other with described second test port with described first test port respectively; Described signal port links to each other with described data collecting card by the image data line, and described first test port links to each other with described test cable two ends respectively with described second test port.
Wherein, described signal port, described first test port or described second test port are the pin socket.
Wherein, the number of pins of described signal port is at least the summation of the first test port number of pins and the second test port number of pins.
Wherein, each pin of described first test port links to each other with each corresponding pin of described signal port by resistance respectively.
Wherein, each pin of described second test port links to each other with each corresponding pin of described signal port respectively, and each pin of described second test port passes through resistance eutral grounding respectively.
Wherein, the pin hole of described first test port and described second test port is 2,4,8 or 16.
Wherein, the pin hole of described signal port is 4,8,16 or 32.
Wherein, described control computer drives described data collecting card by the digital interface connecting line.
Wherein, described digital interface connecting line is pci interface connecting line, IAS interface connecting line, USB interface connecting line or Ethernet interface connecting line.
Compared with prior art, the utlity model has following advantage:
This device comprises control computer, data collecting card and cable link test module, and wherein, described cable link test module connects the test cable two ends; Described control computer drives described data collecting card, described data collecting card is by described cable link test module, to described test cable one end input signal, gather the output signal of the described test cable other end, and transmit this and output signal to described control computer, described control computer is analyzed the on off operating mode of described test cable according to described output signal.
In the prior art, send the device that test vector is tested with sampling single-chip microcomputer or DSP as control chip, when test cable that increases new model or change connection pin, the hardware and software of device all needs to change accordingly.And the polycore cable connecting line proving installation that adopts the utility model to provide, control section separates with part of detecting, by control computer driving data capture card, by the end supplied with digital signal of cable link test module to test cable, through test cable, give data collecting card from the other end of test cable by cable link test module output digital signal, pass control computer back, by the analyzing and processing of control computer to input and output signal, obtain the relation between the signal condition of test cable two ends, analyze the break-make situation that obtains test cable thus.When needs increase the core number of test cable or change the connection pin, only need do corresponding modification on the cable link proving installation gets final product, do not need whole hardware design and application software are done big change, therefore, device provided by the utility model has stronger dirigibility, can realize easily, accurately the cable link of all size is tested.
Description of drawings
The polycore cable connecting line proving installation structural drawing that Fig. 1 provides for the utility model;
The cable link test module structural drawing that Fig. 2 provides for the utility model;
The external structure of the cable link test module that Fig. 3 provides for the utility model embodiment one;
The cut-away view of the cable link proving installation that Fig. 4 provides for the utility model embodiment one;
The external structure of the cable link test module that Fig. 5 provides for the utility model embodiment two;
Fig. 6 provides the cut-away view of cable link test module for the utility model embodiment two;
The test connection layout of the cable link proving installation that Fig. 7 provides for the utility model.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the polycore cable connecting line proving installation structural drawing that provides for the utility model.This device comprises control computer 101, data collecting card 102, cable link test module 103, wherein control computer 101 can be personal computer or industrial control computer, be used for being installed in application software on the control computer 101, the port of operation and observation test result is provided to the user by operation; Data collecting card 102 is meant the capture card that has digital I/O mouth, link to each other with control computer 101 by digital interface connecting line 104, described interface can be in peripheral component interconnect standard (PCI:Peripheral ComponentInterconnect) interface, industrial standard architecture bus interface (ISA:Industry StandardArchitecture), USB (universal serial bus) (USB:Universal Serial Bus) interface or the Ethernet interface any, selects corresponding digital interface connecting line 104 for use according to the interface specification of selecting; Cable link test module 103 links to each other with data collecting card 102 by image data line 105, and image data line 105 is generally the data line that data collecting card 102 is equipped with itself.
The polycore cable connecting line proving installation that adopts the utility model to provide, by control computer 101 driving data capture cards 102, by the end supplied with digital signal of cable link test module 103 to test cable, through test cable, export to data collecting card 102 from the other end of test cable by cable link test module 103, pass control computer 101 back, analyzing and processing by 101 pairs of input and output signals of control computer, obtain the corresponding relation between the signal condition of test cable two ends, analyze the break-make situation that obtains test cable thus.
Referring to Fig. 2, the cable link test module structural drawing that provides for the utility model.Cable link test module 103 comprises signal port 201, first test port 202 and second test port 203, and wherein signal port 201 links to each other with data collecting card 102 by image data line 105, receives or send digital signal; First test port 202 is used to connect an end of test cable, and second test port 203 is used to connect the other end of test cable.
The number of pins of first test port 202, second test port 203 and signal port 201 can be set easily according to the core number of test cable, wherein, the number of pins of signal port 201 is at least the summation of first test port, 202 number of pins and second test port, 203 number of pins.Because cable commonly used is 2 cores, 4 cores, 8 cores or 16 cores, the utility model embodiment provides the cable link test module 103 of two kinds of specifications, can test with interior cable link with interior, 16 cores 8 cores respectively.When need be when more the cable link of multicore be tested, as long as the corresponding number of pins that increases signal port 201, first test port 202, second test port 203 does not need the application software of operation on the control computer 101 is carried out the program change.Therefore, the cable link proving installation that the utility model provides can be realized expansion very easily, has strengthened the dirigibility of proving installation.
To the specification of signal port 201, first test port 202 and second test port 203, in the polycore cable connecting line test module that embodiment provided below the utility model, all adopt the pin socket to describe.This design can easily realize expansion.When need only needing on cable link test module 103 signal port 201, first test port 202 and second test port 203 to be increased corresponding pin socket and get final product when more the cable of multicore be tested, this is realization very easily.In practice, can select other modes as port according to deviser's needs, only need when carrying out wireline test, to adopt just passable with the corresponding cable connector of port specification.
Referring to shown in Figure 3, the external structure of the cable link test module that provides for the utility model embodiment one.The cable link test module 103 that present embodiment provides is used for the test of 8 cores with interior polycore cable.Cable link test module 103 comprises signal port 301, first test port 302, second test port 303, wherein, signal port 301 is the pin socket, comprise 16 pin type pins, link to each other with data collecting card 102 by image data line 105, can receive or send 8 way word signals.First test port 302 and second test port 303 also are the pin sockets, include 8 stitch, are used for connecting respectively the two ends of test cable.
Referring to shown in Figure 4, the cut-away view of the cable link proving installation that provides for the utility model embodiment one.1～8 pass pin of first test port 302 links to each other with 1～8 pass pin of signal port 301 by resistance R 1～R8 respectively.1～8 pass pin of second test port 303 links to each other with 9～16 pass pin of signal port 301 respectively, and 1～8 pass pin of second test port 303 is respectively by resistance R 9～R16 ground connection simultaneously.Wherein, resistance R 1～R8 is 100 Europe, and resistance R 9～R16 is 1000 Europe, all plays dividing potential drop, metering function.In practice, resistance value can be set as required flexibly.
When polycore cable is tested,, each core of test cable is linked to each other respectively with the different pins of first test port 302 by one of test cable being terminated on first test port 302 with the corresponding connector of above-mentioned pin socket.By being connected on second test port 303, each core of test cable is connected on second test port 303 and first test port, the 302 corresponding pins again with the other end of the corresponding connector of above-mentioned pin socket with test cable.For example, one of the 1st core of test cable terminates on the 1st pin of first test port 302, and is then corresponding, and the other end of test cable first core is connected on the 1st pin of second test port 303.
Referring to shown in Figure 5, the external structure of the cable link test module that provides for the utility model embodiment two.The cable link test module 103 that present embodiment provides is used for the test of 16 cores with interior polycore cable.Cable link test module 103 comprises signal port 501, first test port 502, second test port 503, wherein, signal port 501 is the pin socket, comprise 32 pin type pins, link to each other with data collecting card 102 by image data line 105, can receive or send 16 way word signals.First test port 502 and second test port 503 also are the pin sockets, include 16 stitch, are used for connecting respectively the two ends of test cable.
Referring to shown in Figure 6, provide the cut-away view of cable link test module for the utility model embodiment two.1～16 pass pin of first test port 502 links to each other with 1～16 pass pin of signal port 501 by resistance R 1～R16 respectively.1～16 pass pin of second test port 503 links to each other with 17～32 pass pin of signal port 501 respectively, and simultaneously, 1～16 pass pin of second test port 503 is respectively by resistance R 17～R32 ground connection.Wherein, resistance R 1～R16 is 100 Europe, and resistance R 17～R32 is 1000 Europe, all plays dividing potential drop, metering function.In practice, resistance value can be set as required flexibly.
When polycore cable is tested,, each core of test cable is linked to each other respectively with the different pins of first test port 502 by one of test cable being terminated on first test port 502 with the corresponding connector of above-mentioned pin socket.By being connected on second test port 503, each core of test cable is connected on second test port 503 and first test port, the 502 corresponding pins again with the other end of the corresponding connector of above-mentioned pin socket with test cable.For example, one of the 1st core of test cable terminates on the 1st pin of first test port 502, and is then corresponding, and the other end of test cable the 1st core is connected on the 1st pin of second test port 503.
Referring to Fig. 7, the test connection layout of the cable link proving installation that provides for the utility model.The cable link test module that provides with the utility model embodiment one is an example, and the process that adopts this device that polycore cable is tested is described.
At first, data collecting card 702 links to each other with control computer 701 by digital interface connecting line 710, the I/O port of data collecting card 702 links to each other with the signal port 704 of cable link test module 703 by image data line 711 simultaneously, by operating in the I/O port of the application software driving data capture card 702 on the control computer 701, collect the signal input/output state on the cable link test module 703, and recorded and stored, by analyzing, judge whether cable link exists open circuit, short circuit phenomenon.
The signal output state of the cable link test module 703 that the I/O port processing of data collecting card 702 obtains comprises: high level (1), low level (0), high-impedance state (∞), input state comprises: high level (1), low level (0).
Test process with triple cable is an example, and the process that the cable link proving installation that adopts the utility model to provide is tested cable link describes.
At first, one of three core test cables 707 are terminated on first test port 705, each core of test cable 707 is linked to each other with the different pins of first test port 705 respectively by connector 708.Be connected on second test port 706 by the other end of connector 709 again test cable 707, each core of test cable 707 is connected on second test port 706 and first test port, the 705 corresponding pins, be terminating on the 1st pin of first test port 705 of the 1st core of test cable 707, then corresponding, the other end of test cable 707 the 1st core is connected on the 1st pin of second test port 706; One of the 2nd core of test cable 707 terminates on the 2nd pin of first test port 705, and is then corresponding, and the other end of test cable 707 the 2nd core is connected on the 2nd pin of second test port 706; One of the 3rd core of test cable 707 terminates on the 3rd pin of first test port 705, and is then corresponding, and the other end of test cable 707 the 3rd core is connected on the 3rd pin of second test port 706.
During test, by being installed in the I/O mouth of the application software driving data capture card 702 on the control computer 701, to signal port 704 output digital signals, control the state of first test port, 705 each pin, obtain No. 9 of signal port 704 by scanning again, the input state of No. 10 and No. 11 pins, be the state of second test port, 706 corresponding ports, and with each pin status record and be saved in control computer 701, analyze gathering the data of returning by application software, judge whether have short circuit or open circuit phenomenon between each pin of triple cable, and judged result is shown on control computer 701.
Test process with No. 1 pin is an example, specifies the collection of pin status, the process of analyzing and judging.
To signal port 705, represent the output state of its No. 1 pin, No. 2 pins and No. 3 pins respectively with A1, A2, A3, when A1=1, represent that No. 1 pin is a high level; During A1=0, represent that No. 1 pin is a low level; During A1=∞, represent that No. 1 pin is a high-impedance state.In like manner as can be known, the corresponding relation between A2, A3 value and No. 2 pins, No. 3 pin output states.
To signal port 706, represent the input state of its No. 9 pins, No. 10 pins and No. 11 pins respectively with A9, A10, A11, when A9=1, represent that No. 9 pins are high level; During A9=0, represent that No. 9 pins are low level.In like manner as can be known, the corresponding relation between A10, A11 value and No. 10 pins, No. 11 pin input states.
At first, make all pins of first test port 705 put high-impedance state, No. 1 pin of first test port 705 provided a high level (1), and keep, then this moment signal port 704 is had:
A1＝1，A2＝∞，A3＝∞。
Obtain No. 9, No. 10 and No. 11 pin status of signal port 704 and recorded and stored by scanning.
When No. 9, No. 10 of signal port 704 and No. 11 pin status are respectively following state:
1)A9＝1，A10＝0，A11＝0
No. 9 pins of signal port are high level, and No. 10 is low level with No. 11 pins, and No. 1 pin that is second test port 706 is a high level, and No. 2 is low level with No. 3 pins, illustrates that 3 cores of triple cable line are all normal.
2)A9＝0，A10＝0，A11＝0
Be low level with No. 11 pins No. 9, No. 10 of signal port, be No. 1, No. 2 of second test port 706 and be low level with No. 3 pins, by No. 1 pin of test port 705 is the high level 1 core open circuit of triple cable connecting line as can be known, and 2 cores, 3 cores are normal.
3)A9＝1，A10＝1，A11＝0
No. 9, No. 10 pins of signal port are high level, and No. 11 pin is a low level, and No. 1, No. 2 pins that are second test port 706 are high level, and No. 3 pins are low level, short circuit between 1 core of triple cable connecting line and 2 cores as can be known, and 3 cores are normal.
4)A9＝1，A10＝0，A11＝1
No. 9, No. 11 pins of signal port are high level, and No. 10 pin is a low level, and No. 1, No. 3 pins that are second test port 706 are high level, and No. 2 pins are low level, short circuit between 1 core of triple cable connecting line and 3 cores as can be known, and 2 cores are normal.
5)A9＝1，A10＝1，A11＝1
No. 9, No. 10, No. 11 pins of signal port are high level, and No. 1, No. 2, No. 3 pins that are second test port 706 are high level, all short circuits between 1 core of triple cable connecting line, 2 cores and 3 cores as can be known.
6)A9＝0，A10＝1，A11＝0
No. 9, No. 11 pins of signal port are low level, and No. 10 pin is a high level, and No. 1, No. 3 pins that are second test port 706 are low level, No. 2 pins are high level, 1 core of triple cable connecting line open circuit, and short circuit between 1 core and 2 cores as can be known, 3 cores are normal.
7)A9＝0，A10＝0，A11＝1
No. 9, No. 10 pins of signal port are low level, and No. 11 pin is a high level, and No. 1, No. 2 pins that are second test port 706 are low level, No. 3 pins are high level, 1 core of triple cable connecting line open circuit, and short circuit between 1 core and 3 cores as can be known, 2 cores are normal.
8)A9＝0，A10＝1，A11＝1
No. 9 pins of signal port are low level, No. 10, No. 11 pin is high level, and No. 1 pin that is second test port 706 is a low level, and No. 2, No. 3 pin is high level, 1 core of triple cable connecting line open circuit, and all short circuits between 1 core, 2 cores and 3 cores as can be known.
Then, other pins to first test port 705 repeat said process successively again, and it analyzes with deterministic process same as described above.So circulation finishes until all pin tests of first test port 705.At last, comprehensively all collection result are made judgement to whole triple cable connecting line.
More than to a kind of polycore cable connecting line proving installation provided by the utility model, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1, a kind of polycore cable connecting line proving installation is characterized in that, this device comprises control computer, data collecting card and cable link test module, and wherein, described cable link test module connects the test cable two ends;
Described control computer is used to drive described data collecting card, and according to the output signal that described data collecting card is passed back, analyzes the on off operating mode of described test cable;
Described data collecting card, be used under the driving of described control computer, by described cable link test module, to described test cable one end input signal, gather the output signal of the described test cable other end, and pass described output signal back described control computer.
2, polycore cable connecting line proving installation according to claim 1, it is characterized in that, described cable link test module comprises signal port, first test port and second test port, and described signal port links to each other with described second test port with described first test port respectively;
Described signal port links to each other with described data collecting card by the image data line, and described first test port links to each other with described test cable two ends respectively with described second test port.
3, polycore cable connecting line proving installation according to claim 2 is characterized in that, described signal port, described first test port or described second test port are the pin socket.
4, polycore cable connecting line proving installation according to claim 3 is characterized in that, the number of pins of described signal port is at least the summation of the first test port number of pins and the second test port number of pins.
5, polycore cable connecting line proving installation according to claim 4 is characterized in that, each pin of described first test port links to each other with each corresponding pin of described signal port by resistance respectively.
6, polycore cable connecting line proving installation according to claim 4 is characterized in that, each pin of described second test port links to each other with each corresponding pin of described signal port respectively, and each pin of described second test port passes through resistance eutral grounding respectively.
7, according to each described polycore cable connecting line proving installation of claim 2-6, it is characterized in that the pin hole of described first test port and described second test port is 2,4,8 or 16.
8, according to each described polycore cable connecting line proving installation of claim 2-6, it is characterized in that the pin hole of described signal port is 4,8,16 or 32.
9, polycore cable connecting line proving installation according to claim 1 is characterized in that described control computer drives described data collecting card by the digital interface connecting line.
10, polycore cable connecting line proving installation according to claim 9 is characterized in that, described digital interface connecting line is pci interface connecting line, IAS interface connecting line, USB interface connecting line or Ethernet interface connecting line.
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| CNU2008201142300U CN201247297Y (en) | 2008-05-28 | 2008-05-28 | Test device for multi-core cable connecting line |
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| CN105093027A (en) * | 2015-08-20 | 2015-11-25 | 小米科技有限责任公司 | Multifunctional test instrument and multifunctional test test method |
| CN105510762A (en) * | 2016-01-05 | 2016-04-20 | 东莞铭基电子科技集团有限公司 | Intelligent test circuit and test method for USB TYPE-C wire |
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