A Cable Network Tester Based on Tree Channel Expansion

Abstract

The invention belongs to the technical field of observation and control, particularly relates to a cable network tester based on tree-type channel expansion, and aims to provide a cable network tester based on the tree-type channel expansion, which has the maximum test current of 100 mA and 12,800 test channels and is high in test efficiency and high in test precision. The cable network tester based on the tree-type channel expansion comprises a control and processing module, a channel expansion module, an insulation test module and a conduction test module, wherein the control and processing module communicates with an external upper computer so as to control the working sequence of the whole cable network tester and select a test channel of a to-be-tested cable; the insulation test module performs insulation test on the to-be-tested cable; the conduction test module performs conduction test on the to-be-tested cable under the control of a control signal of the control and processing module. Through a modularized design, the channel expansion module is based on a tree-type network structure, and the cable network tester based on tree-type channel expansion has relatively strong expansibility, and has the maximum test current of 100 mA and 12,800 test channels.

Description

technical field [0001] The invention belongs to the technical field of measurement and control, and in particular relates to a cable network tester based on tree channel expansion. Background technique [0002] Cable network testing has always been a heavy and time-consuming task. Traditional testing methods: use a shaker to test insulation, and use a multimeter to test continuity. For large-scale cable networks such as weapons and launch vehicles, the core points of large-scale cable networks can reach tens of thousands of points, and the test channels included in ordinary cable network testers cannot meet the test requirements, which requires the cable network tester The channels are expanded to meet the quality target requirements of cable network detection to completely cover all core points. The existing cable network tester, such as the PMD-CTI series cable tester of Beijing Aerospace Measurement and Control Technology Development Company, provides withstand voltage, ...

AI Technical Summary

Problems solved by technology

These cable network testers generally have low test efficiency, and the cable test needs to be manually configured before testing the test parameters; and the test current is large, and there is a risk of damaging the cable; there are few test points, which cannot meet the needs of large multi-core point cable networks. testing requirements

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