CN206573515U - A kind of cable automatic identification equipment changed based on A/D - Google Patents
A kind of cable automatic identification equipment changed based on A/D Download PDFInfo
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- CN206573515U CN206573515U CN201621479142.1U CN201621479142U CN206573515U CN 206573515 U CN206573515 U CN 206573515U CN 201621479142 U CN201621479142 U CN 201621479142U CN 206573515 U CN206573515 U CN 206573515U
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Abstract
The utility model discloses a kind of cable automatic identification equipment changed based on A/D, the device recognizes that passage, A/D change board, industrial computer and constituted by tested cable.Industrial computer can measure the resistance value of each input channel of test cable test node by A/D analog input cards inside programme-control；Tested cable is recognized that the identification resistance value of passage is converted to digital coding by A/D modular converters；The digital coding of conversion is sent to test industrial computer internal memory by A/D modular converters by pci bus, and coding information is calculated, handled and shown by industrial computer, and recognizes the numbering and model of cable.The utility model is capable of the resistance of each passage of test node of automatic measurement cable under test, solve to check manually in traditional product checkout procedure test cable correctness complicated connectivity problem and manually operated easy error, the problems such as lose time, with automation, reliability be high and precision is high, time saving advantage.
Description
Technical field
The present invention is a kind of cable automatic identification equipment changed based on A/D, and the system is based on electric detection technique and certainly
Dynamic control technology, specifically designed for the resistive measurement field of the TCH test channel of test cable.
Background technology
Because the examination requirements of the Interface Electrical node of test cable is, it is necessary to the sequence number to each test cable is detected,
The resistance arrangement of all test cable TCH test channels should meet the requirement of its sequence number.Due to there is test electricity in existing inspection technology
Cable, causes the larger workload of hand dipping, easy error, the shortcomings of time of measuring is longer, intelligence degree is not high, in order to full
The automatic test requirement of sufficient test cable, it is desirable to which cable automatic identification equipment should meet Automatic survey, intellectuality etc..Cause
This, designs a kind of cable automatic identification equipment based on A/D conversions and is necessary.
The content of the invention
The technology of the present invention solves problem：Overcome the deficiencies in the prior art there is provided it is a kind of based on A/D change cable from
Dynamic identifying device, the system is capable of the automatic detection of the resistance of the Interface Electrical node of collecting test cable in real time, solves oneself
Dynamicization test cable test problems.
The present invention technical solution be：A kind of cable automatic identification equipment changed based on A/D, automatic identification dress
Put including：Tested cable identification passage, A/D conversions board, industrial computer, are tested cable identification passage connection A/D change-over panels
Card, A/D conversion board connection industrial computers, wherein：
Tested cable identification passage, the identification resistance and measuring head of N number of different resistances are constituted on each tested cable, often
The two-end-point of individual identification resistance is connected to measuring head, and the identification resistance has two kinds, and N number of identification resistance constitutes one group of volume
Code, represents 2NIndividual state, for identifying tested cable sequence number, N is positive integer, N >=2；
A/D changes board, receives the acquisition instructions that industrial computer is sent, afterwards, is powered for tested cable identification passage,
The tested cable identification passage of collection respectively recognizes the partial pressure at resistance two ends, is converted into digital quantity, and send to industrial computer；
Industrial computer, sends acquisition instructions and changes board to A/D, receives the digital quantity partial pressure that A/D conversion boards are sent,
Tested cable identification passage is instead released according to the digital quantity partial pressure and respectively recognizes resistance, is identified leading to according to resistance
The coding in road, the sequence number that row decoding obtains tested cable is entered to it, cable sequence number and resistance are stored or shown, is realized
Cable automatic identification.
The A/D conversions board includes N number of test cell and AD acquisition interfaces, and each test cell is included in AD collections and connect
Two test nodes and a test resistance, test resistance one end connection power supply end, other end connection first are connected on mouth
Connecting node and voltage test points, the second test node ground connection；AD acquisition interfaces are connected with tested cable identification lane testing head,
Two test nodes connect and compose bleeder circuit respectively with recognizing that the two-end-point of resistance is connected with corresponding identification resistance.
The difference of two kinds of resistances of the identification resistance is more than or equal to more than 1K.
A/D conversion board is the standard PCI board card of 12 precision using pci interface, by pci bus interface with
Industrial computer communicates.
Industrial computer is counter to be released after identification passage respectively recognizes resistance, will identification resistance and default standard
Resistance is compared, and when being more than or equal to default standard resistance according to resistance, identification resistance is corresponding is encoded to 1 for this,
Otherwise, this identification resistance is corresponding is encoded to 0.
Compared with the prior art, the invention has the advantages that：
(1), test cable Interface Electrical node of the present invention has the testability of resistance, with interface channel node
That tests can spreadability.
(2), A/D modular converters of the present invention can reliably work；Meanwhile, with good environmental adaptability, reliably
The high advantage of property, meets the requirement used under the mal-conditions such as high temperature, vibration.
(4), the long-range real-time online of industrial computer of the present invention is detected, handles mass data and have in real time
Image conversion shows and analyzed and processed function, the features such as automaticity is high.
(5), A/D acquisition modules of the present invention have that patten transformation is easy to control, interior contact reliable, long lifespan,
Interface is easy to connect, it is highly reliable the characteristics of.
Brief description of the drawings
Fig. 1 is a kind of intelligentized automatic insulation/feature resistance tester schematic diagram of the present invention；
Fig. 2 recognizes the schematic diagram of passage for test cable in the present invention；
Fig. 3 is single channel voltage collection circuit schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail.
As shown in figure 1, the invention provides a kind of cable automatic identification equipment changed based on A/D, the device includes quilt
Survey cable identification passage 1, A/D conversions board 5, industrial computer 7；
Tested cable identification passage, by the identification resistance and measuring head that are welded on N number of different resistances on each tested cable
Constitute, the two-end-point of each identification resistance is connected to measuring head, and the identification resistance there are two kinds, 0 or 1, N is represented respectively
The different resistances of individual identification resistance constitute one group of coding, represent 2NIndividual state, for identifying tested cable sequence number, N is positive integer,
N≥2；
A/D changes board 5, including N number of test cell and AD acquisition interfaces, and each test cell includes being welded on AD collections
Two test nodes and a test resistance on interface, test resistance one end connection power supply end, other end connection first
Connecting node and voltage test points, the second test node ground connection；AD acquisition interfaces are connected with tested cable identification lane testing head
Afterwards, two test nodes connect and compose bleeder circuit respectively with recognizing that the two-end-point of resistance is connected with corresponding identification resistance；
Industrial computer 7, sends acquisition instructions and changes board 5 to A/D, A/D conversion boards 5 are received after acquisition instructions,
Powered for tested cable identification passage, the partial pressure at the tested cable identification resistance two ends of collection, by each identification resistance two ends of collection
Partial pressure analog quantity be converted to digital quantity, and send to industrial computer 7, afterwards, industrial computer 7 reads each identification resistance two
The partial pressure at end, resistance is released according to partial pressure is counter, resistance is compared with default standard resistance, when according to resistance
When resistance is more than or equal to default standard resistance, the identification resistance is corresponding to be encoded to 1, otherwise, and the identification resistance is corresponding to be compiled
Code is 0, and corresponding encode of N number of identification resistance constitutes the coding that tested cable recognizes passage, the volume to being tested cable identification passage
Code, which enters row decoding, can obtain the sequence number of tested cable, and cable sequence number and resistance are stored or shown, realize cable certainly
Dynamic identification.
The difference of two kinds of resistances of the identification resistance is more than or equal to more than 1K.
The A/D conversions board 5 is the standard PCI board card of 12 precision using pci interface, passes through pci bus interface
Communicated with industrial computer 7.
The A/D conversions board 5 is the standard PCI board card of 12 precision using pci interface.
Embodiment：
Fig. 2 shows the realization principle of test device.Connected as illustrated, A/D changes board 5 by A/D acquisition interfaces (4)
Connect test cable identification passage.Right-hand component is test and the connector that is connected of tested cable identification passage in figure, 101,102,
103rd, 104 be the resistance on identification passage, is taken respectively from different resistances.Left-hand component connects for the AD collections of AD interface boards
Mouthful.In the present embodiment, 4 cables can be tested simultaneously by being tested cable identification passage, during test, first, it should be understood that electrically dress
Electrical node quantity is put less than 4 tunnels, if above 4 tunnels, it can be optimized, selected parts go out the resistance that 4 tunnels carry out electrical node
Measurement, test cable wire sequence can be changed as needed.After Fig. 2 part of left and right two is docked, 1a is connected with 1b, 2a
Be connected with 2b, by that analogy ... 8a be connected with 8b, each identification aisle resistance forms as shown in Figure 3 with AD interface board circuits
Single channel voltage collection circuit, is powered, i.e. V=5V using standard 5V, the voltage V at measurement ADii, can be with by following formula
Corresponding identification resistance is calculated, specific formula for calculation is：
For the present embodiment：
In formula, R2 is that cable recognizes that resistance, R1 are AD collection terminal resistance.
After the TCH test channel that specify that test cable, A/D modular converters mainly realize resistance measurement pattern, and interface is used
The resistance value of collection is converted to digital quantity, digital quantity passage PCI by pci bus form, A/D acquisition channels by A/D modular converters
Passage realizes the communication with test industrial computer, and test industrial computer is realized with desk-top industrial computer or portable integrated machine.
A/D modular converters can be automatically to input channel resistance value measure, measurement result is logical in ASCII character form
Cross pci bus or serial communication interface be connected with industrial computer, industrial computer can real-time reception A/D modular converters send
Data, and data are parsed, calculated, shown and handled.
Industrial computer carries out data processing using the processing system of Labview software developments, and Labview can be with VC, VB
Etc. the exploitation of computer language procedure system compatible.The processing system can real-time selection resistance measurement pattern, and in time man-machine
Shown on interactive interface, the resistance of resistance is shown real-time online.By carrying out diagnostic analysis to measurement data, generation is surveyed
Examined the need for result form is measured for test cable and reference is provided.
Finally, a kind of cable automatic identification equipment changed based on A/D disclosed by the invention is through experiment and Preliminary Applications, knot
Fruit shows the passage of systematic survey passage 4, measurement accuracy 1%.
The content not being described in detail in description of the invention belongs to the known technology of those skilled in the art.
Claims (5)
1. a kind of cable automatic identification equipment changed based on A/D, it is characterised in that including：Tested cable identification passage (1), A/
D conversion boards (5), industrial computer (7), are tested cable identification passage (1) connection A/D conversion boards (5), A/D conversion boards
(5) connection industrial computer (7), wherein：
Tested cable identification passage, the identification resistance and measuring head of N number of different resistances are constituted on each tested cable, Mei Geshi
The two-end-point of other resistance is connected to measuring head, and the identification resistance has two kinds, and N number of identification resistance constitutes one group of coding, generation
Table 2NIndividual state, for identifying tested cable sequence number, N is positive integer, N >=2；
A/D conversion boards (5), receive the acquisition instructions that industrial computer (7) is sent, afterwards, are supplied for tested cable identification passage
Electricity, the tested cable identification passage of collection respectively recognizes the partial pressure at resistance two ends, is converted into digital quantity, and send to industry control calculating
Machine (7)；
Industrial computer (7), sends acquisition instructions to A/D conversion boards (5), receives the digital quantity that A/D conversion boards (5) are sent
Partial pressure, tested cable identification passage (1) is instead released according to the digital quantity partial pressure and respectively recognizes resistance, is obtained according to resistance
To the coding of identification passage, the sequence number that row decoding obtains tested cable is entered to it, by cable sequence number and resistance storage or
It has been shown that, realizes cable automatic identification.
2. a kind of cable automatic identification equipment changed based on A/D according to claim 1, it is characterised in that the A/D
Changing board (5) includes N number of test cell and AD acquisition interfaces, and each test cell, which is included in AD acquisition interfaces, connects two
Test node and a test resistance, test resistance one end connection power supply end, the other end connect the first connecting node and electricity
Press test point, the second test node ground connection；AD acquisition interfaces are connected with tested cable identification lane testing head, two test nodes
Respectively with recognizing that the two-end-point of resistance is connected, bleeder circuit is connected and composed with corresponding identification resistance.
3. a kind of cable automatic identification equipment changed based on A/D according to claim 1, it is characterised in that the identification
The difference of two kinds of resistances of resistance is more than or equal to more than 1K.
4. a kind of cable automatic identification equipment changed based on A/D according to claim 1, it is characterised in that the A/D
The standard PCI board card that board (5) is 12 precision using pci interface is changed, passes through pci bus interface and industrial computer
(7) communicate.
5. a kind of cable automatic identification equipment changed based on A/D according to claim 1, it is characterised in that industry control is calculated
Machine (7) is instead released after each identification resistance of identification passage (1), and identification resistance is compared with default standard resistance
Compared with when being more than or equal to default standard resistance according to resistance, the identification resistance is corresponding to be encoded to 1, otherwise, the identification
Resistance is corresponding to be encoded to 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621479142.1U CN206573515U (en) | 2016-12-30 | 2016-12-30 | A kind of cable automatic identification equipment changed based on A/D |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621479142.1U CN206573515U (en) | 2016-12-30 | 2016-12-30 | A kind of cable automatic identification equipment changed based on A/D |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206573515U true CN206573515U (en) | 2017-10-20 |
Family
ID=60060806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621479142.1U Expired - Fee Related CN206573515U (en) | 2016-12-30 | 2016-12-30 | A kind of cable automatic identification equipment changed based on A/D |
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| CN (1) | CN206573515U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519518A (en) * | 2018-05-31 | 2018-09-11 | 常州机电职业技术学院 | High-resistance potentiometer carbon diaphragm array plate whole plate resistance value extraction circuit |
| CN112098901A (en) * | 2020-08-12 | 2020-12-18 | 深圳供电局有限公司 | Cable identification method and device, computer equipment and readable storage medium |
| CN116338557A (en) * | 2023-05-29 | 2023-06-27 | 青岛鼎信通讯股份有限公司 | Device and method for automatically identifying measuring range and phase of transformer of field calibrator |
-
2016
- 2016-12-30 CN CN201621479142.1U patent/CN206573515U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519518A (en) * | 2018-05-31 | 2018-09-11 | 常州机电职业技术学院 | High-resistance potentiometer carbon diaphragm array plate whole plate resistance value extraction circuit |
| CN112098901A (en) * | 2020-08-12 | 2020-12-18 | 深圳供电局有限公司 | Cable identification method and device, computer equipment and readable storage medium |
| CN112098901B (en) * | 2020-08-12 | 2022-10-28 | 深圳供电局有限公司 | Cable identification method and device, computer equipment and readable storage medium |
| CN116338557A (en) * | 2023-05-29 | 2023-06-27 | 青岛鼎信通讯股份有限公司 | Device and method for automatically identifying measuring range and phase of transformer of field calibrator |
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Granted publication date: 20171020 Termination date: 20211230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |