Cable external-force-damage-prevention early warning device with excavator characteristic quantity identification

Abstract

The invention discloses a cable external-force-damage-prevention early warning device with excavator characteristic quantity identification function. The device comprises a pickup module, a voiceprintrecognition module, a database modeling module, an early warning module and a wireless communication module, wherein the pickup module is used for picking up the voiceprints of an excavator and transmitting the voiceprints to the voiceprint recognition module, the voiceprint recognition module is used for processing the collected voiceprints of the excavator and recognizing and matching the voiceprints with a voiceprint model in the database modeling module, the early warning module is connected with the output end of the voiceprint recognition module and used for generating early warning information, and the wireless communication module is connected with the early warning module and used for sending wireless early warning signals. According to the invention, a voiceprint recognition technology is used for recognizing the characteristic quantity of an excavator, so that whether the excavator works near the underground cable can be accurately judged, the type judgment of the cable external force damage tool is accurate, the intelligent degree is high, and the actual external force damage prevention effect is ideal.

Description

technical field [0001] The invention relates to the technical field of early warning against external force damage of cables, in particular to an early warning device for cable external force damage with excavator characteristic quantity identification. Background technique [0002] With the rapid development of power grid construction and the expansion of transmission lines, the proportion of underground cable power supply in the power distribution system is increasing. Although the cable line has the advantages of being less affected by the natural environment, occupying less land, and having high power supply reliability, the cable is often damaged by external forces during use, and the advantages of safe and reliable cable power supply are seriously affected. [0003] At present, the protective measures for underground cables mainly include: 1) Send special personnel to carry out normal inspection, special inspection and key project inspection during operation. 2) Insta...

AI Technical Summary

Problems solved by technology

Although the cable line has the advantages of being less affected by the natural environment, less land occupation, and high power supply reliability, the cable is often damaged by external forces during use, and the advantages of safe and reliable cable power supply are seriously affected.

[0003] At present, the protective measures for underground cables mainly include: 1) Send special personnel to conduct normal inspections, special inspections and key project inspections during operation.

2) Install warning signs in special places to remind construction workers to pay attention to protecting cables, or use channels with high resistance to external forces such as buried pipes and tunnels instead of laying methods with low resistance to external forces such as direct burial; the degree of automation and intelligence is low, and the actual Anti-external damage effect is not ideal

This makes it easy to generate false alarms, and it is difficult to set the vibration threshold. If the threshold is too large, vibration cannot be effectively monitored. If the threshold is small, it will be easily affected by noise.

And this method does not classify the vibration source, but simply monitors whether there is vibration, and cannot determine the source of vibration

And the vibration signal attenuation is serious, so the effective monitoring distance of the vibration sensor is low, and a large number of sensors need to be arranged

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