Grounding wire monitoring device, EOS (Electrical Over Stress) monitoring system and method

Abstract

The embodiments of the invention disclose a grounding wire monitoring device, an EOS (Electrical Over Stress) monitoring system and an EOS (Electrical Over Stress) monitoring method. The EOS monitoring system comprises external electrical equipment, an alternating-current charging pile, an external equipment ground pile and a grounding wire monitoring device; the external equipment ground pile iselectrically connected with the grounding wire monitoring device through a first ground wire; the alternating-current charging pile is electrically connected with the ground wire monitoring device through a second ground wire; the external electrical equipment is electrically connected with the grounding wire monitoring device through a third ground wire; the grounding wire monitoring device sendsdetection signals, the detection signals pass through the first ground wire, the second ground wire and the third ground wire sequentially, and then return to the grounding wire monitoring device, and therefore, a loop is formed; and when judging that the detection signals do not return through the loop, the grounding wire monitoring device automatically gives an alarm. With the grounding wire monitoring device, the EOS monitoring system and the EOS monitoring method of the invention adopted, automatic detection and automatic alarm can be carried out in real time without regular manual line inspection required, labor cost and maintenance cost are greatly saved, and the problem of poor inspection effectiveness due to a condition that existing EOS detection requires manual operation can besolved.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a ground wire monitoring device, an EOS monitoring system and a method thereof. Background technique [0002] At present, in the manufacturing field, especially the electronic equipment manufacturing industry, the first thing to face is the damage to products caused by EOS (Electrical OverStress). External electrical equipment (such as monitors) at the factory or laboratory are often prone to leakage due to various environmental influences (aging equipment, damp electronic components, etc.). Leakage of external electrical equipment is the main cause of EOS, and the source of electrical leakage (EOS) is that the case is not in good contact with the ground. If the external electrical equipment has been placed in a certain place, the probability of EOS will be very small, but in reality, due to the large variety of products, it is often necessary to replace different e...

AI Technical Summary

Problems solved by technology

[0005] In view of the above technical problems, the embodiment of the present invention provides a grounding wire monitoring device, an EOS monitoring system and a method thereof, to solve the problem that the existing EOS detection requires manual operation, resulting in poor inspection effectiveness

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