CN109884470B - Precision cable testing system - Google Patents
Precision cable testing system Download PDFInfo
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- CN109884470B CN109884470B CN201910202393.7A CN201910202393A CN109884470B CN 109884470 B CN109884470 B CN 109884470B CN 201910202393 A CN201910202393 A CN 201910202393A CN 109884470 B CN109884470 B CN 109884470B
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Abstract
The invention discloses a precision cable testing system, which comprises: the system comprises a tested cable transfer platform, a plurality of cable tester slave machines, a cable tester host machine, an operation host machine and a power supply module, wherein the tested cable transfer platform is in circuit connection with the cable tester slave machines; a plurality of cable test slave machines are connected in a cascading mode; the cable tester slave computer is connected with the cable tester host computer by adopting an address data bus; the cable tester host is connected with the operation host by a CAN bus; the cable testing software is installed in the operation host and used for recording, storing and analyzing and judging cable testing data, the power supply module is used for supplying power to the cable tester slave machines and the cable tester host, and the purposes of improving the precision and the expansibility of cable testing, improving the efficiency of partial cable function testing and recording and analyzing the cable testing data are achieved by cascading a plurality of cable tester slave machines, a module power supply and improving the cable testing software.
Description
Technical Field
The invention relates to the technical field of cable testing, in particular to a precision cable testing system.
Background
Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The device is erected in the air or installed underground or underwater for telecommunication or power transmission. The test can produce objective evaluation to some basic data, discover the problem of network, equipment in time.
The existing cable test equipment has single function and low precision, and cannot meet the standard requirements of military industry and aerospace level; the application scene is single, and the rapid test cannot be carried out on various small-batch products; the software part has single function and lacks of recording and analyzing subsequent data.
Disclosure of Invention
In order to solve the technical problems, the invention provides a precision cable test system to achieve the purposes of improving the precision and the expansibility of cable test, improving the effect of partial cable function test and recording and analyzing cable test data.
In order to achieve the purpose, the technical scheme of the invention is as follows: a precision cable testing system, the system comprising: the system comprises a tested cable transfer platform, a plurality of cable tester slave machines, a cable tester host machine, an operation host machine and a power supply module, wherein the tested cable transfer platform and the plurality of cable tester slave machines are all in circuit connection; the plurality of cable test slave machines are connected in a cascading mode; the cable tester slave machine is connected with the cable tester host machine by adopting an address data bus; the cable tester host is connected with the operation host by a CAN bus; the cable tester slave machines are respectively provided with a high-frequency DC/DC module power supply, the operation host machine is internally provided with cable test software, the cable test software is used for recording, storing, analyzing and judging cable test data, and the power supply module is used for supplying power to the cable tester slave machines and the cable tester host machine.
Furthermore, a quick plugging connector is arranged on the tested cable transfer platform.
Further, the cable tester slave is a 1024-point matrix module.
Further, an excitation source is arranged on the cable tester host.
Further, the cable tester is provided with a step-up transformer on the slave machine, and the step-up transformer is used for insulation test of the cable.
Further, the power supply module comprises an AC power supply interface and an AC power supply distribution unit, and the power supply distribution unit is connected with the cable tester slave machine and the cable tester host machine.
The invention has the following advantages:
(1) the invention is convenient for the expansion of the test channel by arranging the plurality of cable tester slave machines in a cascading mode.
(2) According to the invention, the high-frequency high-precision module power supply is arranged, so that the testing precision of the conduction resistance value of the cable can reach 0.01 ohm, and the testing precision of the functions of part of the cable is improved.
(3) The invention improves the cable test software, so that the software can effectively record, store, analyze and judge the cable test data.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below.
FIG. 1 is a schematic structural diagram of a precision cable testing system according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a precision cable testing system according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides a precise cable test system, which has the working principle that the accuracy and the expansibility of cable test are improved, the effect of partial cable function test is improved, and the purposes of recording and analyzing cable test data are achieved by arranging a plurality of cable tester slave machines in a cascading mode, arranging a high-frequency high-precision module power supply and improving cable test software.
The present invention will be described in further detail with reference to examples and specific embodiments.
As shown in fig. 1 and 2, a precision cable testing system, the system comprising: the system comprises a tested cable transfer platform, a plurality of cable tester slave machines, a cable tester host machine, an operation host machine and a power supply module, wherein the tested cable transfer platform and the plurality of cable tester slave machines are all in circuit connection; the plurality of cable test slave machines are connected in a cascading mode; the cable tester slave machine is connected with the cable tester host machine by adopting an address data bus; the cable tester host is connected with the operation host by a CAN bus; the cable tester slave machines are provided with high-frequency DC/DC module power supplies, cable test software is installed in the operation host machine and used for recording, storing, analyzing and judging cable test data, and the power supply module is used for supplying power to the cable tester slave machines and the cable tester host machine.
The cable testing slave machines are in modular design and connected through a back plate in the system to complete signal and data transmission among modules, a single equipment testing channel can reach 6000, a plurality of cable testers in the whole testing system are expanded in a cascading mode, various testing functions of the cable testing system are finally achieved, and after the cable testing slave machines are expanded in a cascading mode, the system testing channel has no upper limit theoretically.
The high-precision DC/DC module power supply is customized, the adjustable range is 0.05V-30 VDC, high-precision sampling control feedback is adopted to realize high-precision output, the current adjusting range is 2 mA-2A, and the testing precision of the conducting resistance value of the cable is ensured to reach 0.01 omega.
The tested cable switching table is provided with the quick plugging connector, so that a user can conveniently plug and replace a tested cable, and the testing efficiency of the tested cable is improved.
Wherein the cable tester slave machine is a 1024-point matrix module.
Wherein, the cable tester host computer is provided with the excitation source.
The cable tester is provided with a step-up transformer on the slave machine, the step-up transformer is used for insulation test of cables, the step-up transformer with special design improves the linearity and the voltage stability of input voltage while realizing 100-1000 v insulation test, and the shortest time for completing single-point insulation test is only 0.5 s.
The power supply module comprises an AC power supply interface and an AC power supply distribution unit, and the power supply distribution unit is connected with the cable tester slave machine and the cable tester host machine.
Take 6 cable tester slaves as an example: the cable test system mainly comprises 1 control host (comprising a host, a display and input equipment, wherein the host is a domestic brand, is provided with a legal Windows XP or Windows7 operating system and antivirus specified by a buyer, does not have a wireless transmitting module, and has USB interface use records and internet surfing records), 1 cable tester host, 6 cable tester modules (comprising 6144 test points in total), one set of tested cable switching stations, a secondary switching process cable (meeting the detection requirement of an XX cable), 25 secondary switching process cable cabinets and other related accessories (communication cables and random test cables).
The equipment in the test system, which is in communication connection with the operation host, is the cable tester host, and the cable tester host is connected with the operation host by adopting a CAN bus, so that the transmission of signals and data between the test system and the operation host is realized, and the control of the operation host on the test system is realized.
The cable tester host and the cable tester slave are connected and expanded in the form of an address data bus, and a 6144-point test system is formed by 6 1024-point cable tester units.
Through high integration of software, the system can select to carry out all configuration functions (can carry out configuration in new projects or project editing) on the tested cable to carry out comprehensive testing (defaults to four functions including conduction, short circuit, insulation and ground insulation), the cable tester tests the relation of the core wires of the tested cable according to various functional test instruction packets (functional instructions, core wire relation and the like) issued by the operation host, then uploads a test result to the operation host, the operation host judges and processes uploaded data, and finally displays the conduction state (qualified, unqualified and whether greater than a set threshold value) of the tested cable.
The above description is only a preferred embodiment of the precise cable testing system disclosed in the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept, and these variations and modifications are within the scope of the present invention.
Claims (5)
1. A precision cable testing system, the system comprising: the system comprises a tested cable transfer platform, a plurality of cable tester slave machines, a cable tester host machine, an operation host machine and a power supply module, wherein the tested cable transfer platform and the plurality of cable tester slave machines are all in circuit connection; the plurality of cable test slave machines are connected in a cascading mode; the cable testing slave machines are in a modular design and are connected through a back plate in the system to complete signal and data transmission among the modules; the cable tester slave machine is connected with the cable tester host machine by adopting an address data bus; the cable tester host is connected with the operation host by a CAN bus; the cable tester host tests the core wire relation of a tested cable according to various functional test instruction packets sent by the operation host, uploads the test result to the operation host, and the operation host judges and processes the uploaded data and finally displays the conduction state of the tested cable; the power supply module is used for supplying power to the slave machine of the cable tester and the host machine of the cable tester; and the tested cable switching table is provided with a quick plug connector.
2. The precision cable testing system of claim 1, wherein the cable tester slave is a 1024 point matrix module.
3. The precision cable testing system of claim 1, wherein the cable tester mainframe has an excitation source disposed thereon.
4. The precision cable testing system according to claim 1 or 2, wherein the cable tester is provided with a step-up transformer from a machine, and the step-up transformer is used for insulation testing of cables.
5. The precision cable test system of claim 1, wherein the power module comprises an AC power interface and an AC power distribution unit, the power distribution unit being connected to the cable tester slave and the cable tester master.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910202393.7A CN109884470B (en) | 2019-03-11 | 2019-03-11 | Precision cable testing system |
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| CN201910202393.7A CN109884470B (en) | 2019-03-11 | 2019-03-11 | Precision cable testing system |
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| CN109884470A CN109884470A (en) | 2019-06-14 |
| CN109884470B true CN109884470B (en) | 2022-07-01 |
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| CN113514726B (en) * | 2021-09-15 | 2021-12-28 | 北京安达维尔航空设备有限公司 | Complete machine cable detection system and method |
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