Alarm for construction machinery while approaching high tension power line

Abstract

The invention relates to an alarm for the approach of construction equipment to a high-voltage power transmission circuit, in particular to an alarm preventing large-size construction equipment such as cranes, and the like from approaching high-voltage power transmission circuits in a distance which is smaller than a safety distance. The alarm mainly comprises a detection device and an alarm device, wherein a circuit structure of the detection device comprises a transmission line distance sensing transducer, a safety distance judger, a transmission terminal frequency-modulation amplifier, a wireless signal generator and a transmission antenna which are all sequentially connected. A circuit structure of an alarm device comprises a receiving antenna, a wireless signal receiver, a second amplification dynatron, a frequency-modulation amplifier, a light emitting diode connected with the frequency-modulation amplifier, and a buzzer which are all sequentially connected. The invention can meet different requirements of the safety distance of transmission lines in different voltage levels, has convenient maintenance, can reduce the transmission line trip, casualties and equipment damage caused by the external damage of transmission lines by large-size construction equipment such as cranes, and the like, and can improve the power supply reliability of transmission lines.

Description

technical field [0001] The invention relates to an alarm for construction machinery approaching a high-voltage transmission line, in particular to an alarm for preventing large-scale construction machinery such as a crane from approaching a high-voltage transmission line within a safe distance. Background technique [0002] In recent years, my country's urban construction is changing with each passing day, and the distribution of transmission lines is becoming wider and wider. Various urban constructions such as highways, elevated roads and other construction cranes and other large-scale machinery often mistakenly touch transmission lines during savage construction, causing transmission lines to trip and endanger The life safety of construction personnel seriously affects the safe and stable operation of transmission lines. How to make large machinery such as cranes issue an alarm to remind operators when they are close to the transmission line, so as to ensure the safe and s...

AI Technical Summary

Problems solved by technology

[0002] In recent years, my country's urban construction is changing with each passing day, and the distribution of transmission lines is becoming wider and wider. Various urban constructions such as highways, elevated roads and other construction cranes and other large-scale machinery often accidentally hit the transmission lines in savage construction regardless of safety, causing transmission lines to trip and endanger The life safety of construction workers seriously affects the safe and stable operation of transmission lines

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