A traversal detection method suitable for redundant magnetic latching power supply and distribution lines

Abstract

The invention discloses an intelligent detection circuit suitable for redundant magnetic latching supply and distribution lines. Test design is performed by a supply and distribution control line formed by magnetic latching relays KZ1 to KZ4, and a parallel control line is independently led out in a single machine. A bridging mode is achieved in a system so that a supply and distribution system can have more independent control nodes in unit testing. Without the addition of a special test wire, different combined logic control is performed on four signal control ports in the testing including a switching-on control port 1, a switching-on control port 2, a switching-off control port 1, and a switching-off control port 2. Simultaneously, voltage detection is performed on the power supply end of an instrument so as to achieve status confirmation of each relay contact of the KZ1 to KZ4 and achieve 100% measurement of the on-off states all contacts of the control paths.

Description

technical field [0001] The invention relates to a traversal detection method suitable for redundant magnetic holding power supply and distribution lines. Background technique [0002] The power supply and distribution system of the launch vehicle and its upper stage, in the process of testing, launch, and control, in order to ensure the normal and reliable power supply and distribution work, in its system design, a large number of redundant control paths are used to ensure that all control paths 100% working properly becomes the basic test requirement and prerequisite. In the traditional design, the test points are usually led out from the single machine one by one, and cooperate with the system test logic to complete the test of the redundant path of the power supply and distribution system. [0003] However, for the upper-level system, due to the impact of the space environment, in order to avoid the electrostatic discharge of the spare pins on the connector under the acc...

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Problems solved by technology

[0003] However, for the upper-level system, due to the impact of the space environment, in order to avoid the electrostatic discharge of the spare pins on the connector under the accumulation effect of static electricity in deep space, and to avoid the influence of the interference signal on the entire system, it should be avoided as much as possible The test points of the system work are drawn from the inside of the single machine, so the traditional test method cannot be used

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