Fault detection device and method
A technology of fault detection and voltage detection, which is applied in the electronic field, can solve the problems of low detection efficiency of power line faults, achieve the effect of solving low detection efficiency and improving detection efficiency
Pending Publication Date: 2022-04-26
ZHEJIANG DAHUA TECH CO LTD
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Problems solved by technology
[0004] Embodiments of the present invention provide a fault detection device and method to at least solve the problem of low detection efficiency of power line faults in the related art
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[0024] Embodiments of the present invention will be described in detail below with reference to the drawings and in combination with the embodiments.
[0025] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.
[0026] In related technologies, by adding MOS tubes to control the on-off of the detection circuit, the problem of overheating of the detection circuit of the DC remote power supply line lapping the power line is solved, such as figure 1 as shown, figure 1 is an example of failure detection in the related art Figure 1 , this detection scheme can only be used to detect the detection of the weak current cable overlapping the power line, and cannot detect the overlapping between the power lines; in the related technology, there is also the current, voltage, and power information o...
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The embodiment of the invention provides a fault detection device and method.The device comprises a first switch, a first voltage detection module, a control module and a target switch, the first end of the first switch is configured to be connected with a live wire, the second end of the first switch is configured to be connected with a load, and the controlled end of the first switch is connected with the control module; the state of the first switch is adjusted by the control module; the first end of the target switch is connected with the live wire, the controlled end of the target switch is connected with the control module, and the state of the target switch is adjusted by the control module; the first voltage detection module is used for detecting a voltage value between the second end of the first switch and the second end of the target switch and outputting a first result obtained through detection to the control module; the control module judges whether the second end of the first switch is in lap joint with the zero line based on the first result. Through the power line fault detection method and device, the problem of low power line fault detection efficiency in the prior art is solved.
Description
technical field [0001] Embodiments of the present invention relate to the field of electronic technology, and in particular, to a fault detection device and method. Background technique [0002] In the field of electronic technology, in order to ensure the normal operation of the line, it is necessary to frequently detect the working status of the line to judge the possible faults of the line. For on-off control products, in order to ensure the stability and reliability of their peripherals, in addition to the stability and reliability of the product itself, it is also necessary to avoid power cable laps caused by peripheral loads due to cable damage, such as lapping of live wires and neutral wires, or lapping of live wires and neutral wires. Firewire lap. In the related art, the method of detecting the output power line voltage is mainly used. This method can only judge whether the live wire is energized, but cannot judge whether the live wires or the live wire and the neu...
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Login to View More IPC IPC(8): G01R31/08
CPCG01R31/085
Inventor 黄义柳王卫刚王宗维
Owner ZHEJIANG DAHUA TECH CO LTD