Relay service life detection device
A detection device and relay technology, which is applied in measurement devices, circuit breaker testing, instruments, etc., can solve the problem of MCU powerlessness and other problems, and achieve the effect of ensuring accuracy
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[0031] The present invention will be further described below in conjunction with accompanying drawing.
[0032] figure 1 It is a block diagram of an embodiment of a relay life detection device when L=4, including a controller unit 10, a 1# on-off counting unit 11, a 2# on-off counting unit 12, a 3# on-off counting unit 13, and a 4# on-off counting unit 14 , a man-machine interface unit 15 , a gating control unit 16 , a relay drive unit 17 , and an oscillator unit 18 .
[0033] The man-machine interface unit 15 communicates with the controller unit 10 through the interface I / O1 of the controller unit 10, and is used to detect the issuing of commands, parameter modification, and the display of the life of each relay switch; the controller unit 10 communicates with the relay through the output port OUT2. The drive unit 17 sends a relay drive signal to control the on-off of the 1# to 4# relay switch; the oscillator unit 18 outputs the sampling clock pulse CP1 to the 1# on-off cou...
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Abstract
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