Conveying pipeline human body detection device based on capacitance detection

Abstract

The invention discloses a conveying pipeline human body detection device based on capacitance detection, and particularly relates to the technical field of conveying pipeline human body detection. Theconveying pipeline human body detection device based on the capacitance detection comprises an insulating tube and a metal shielding cover, wherein a detection electrode is arranged in the insulatingtube; a detection circuit is arranged in the metal shielding cover, and the detection electrode is connected with the detection circuit through a connecting cable; the detection circuit comprises a signal conversion circuit, a decision judgment circuit, an I / O digital output and 485 communication circuit which are sequentially connected; in the working process of the detection device, the detection electrode converts a human body capacitance signal into a current signal, the current signal is amplified, arranged and converted into a voltage signal by a signal conversion circuit, and the voltage is output to a decision judgment circuit after being judged by the decision judgment circuit; and the decision judgment circuit processes the output of the judgment circuit to obtain the result ofpresence or absence of personnel, and the I / O digital output and 485 communication circuit outputs the judgment result.

Description

technical field [0001] The invention relates to the technical field of human body detection in transmission pipelines, in particular to a human body detection device for transmission pipelines based on capacitance detection. Background technique [0002] In industrial and mining enterprises, transmission pipelines can be seen everywhere. Due to the actual situation on site, most of the transmission pipelines have exposed parts. These exposed parts generally pose a safety hazard for people falling into them. Once the staff falls, it will endanger their lives. It is very necessary to detect whether there are workers falling into the pipeline by technical means, and to take timely and effective measures to ensure the safety of the workers when they are found. [0003] At this stage, the detection of the human body is mainly realized by detecting physical quantities such as "sound, light, electricity, magnetism, and heat". The occlusion of the human body, the reflection of the ...

AI Technical Summary

Problems solved by technology

Although these technologies have certain applications, due to the complexity and particularity of the pipeline industry and mines, the use of these technologies on the pipeline is not effective, and there have been a large number of false positives, missed negatives, or even non-reports

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