Whole-process monitoring node detection circuit for motorway

Abstract

The invention provides a whole-process monitoring node detection circuit for a motorway, and the circuit comprises an analog-digital conversion circuit. The analog-digital conversion circuit is connected with a first power conversion circuit and a second power conversion circuit, wherein the first power conversion circuit is connected with a current sampling circuit, and the second power conversion circuit is connected with a voltage sampling circuit. The other end of the current sampling circuit is connected with a first rectification operational amplification circuit, and the other end of the voltage sampling circuit is connected with a second rectification operational amplification circuit. The first rectification operational amplification circuit and the second rectification operational amplification circuit are connected with to-be-detected equipment. Through current sampling and voltage sampling, the circuit can monitor the operation condition and current condition of monitoring equipment timely and remotely. When a fault happens to one of a plurality of pieces of equipment or the current of one node is too large, the circuit automatically controls the corresponding equipment to be turned off, thereby guaranteeing the stable operation of each piece of equipment.

Description

technical field [0001] The invention belongs to the technical field of network monitoring, and particularly relates to a node detection circuit for monitoring the entire expressway. Background technique [0002] The highway road monitoring system is to collect and forecast various information of the road in a timely, accurate and complete manner through the outfield facilities (cameras, etc.) along the line, such as traffic volume, accidents, road conditions, etc., and the road managers monitor (display) through the monitoring center. The device intuitively understands the traffic operation. In the event of traffic anomalies, the accident or blocked area can be determined in time, and corresponding guidance and rescue information can be released in real time. [0003] The whole-process monitoring of expressways is an effective technical means to improve the traffic safety level of the road network, improve the traffic capacity and improve the quality of traffic services. Ho...

AI Technical Summary

Problems solved by technology

[0003] The whole-process monitoring of expressways is an effective technical means to improve the traffic safety level of the road network, improve the traffic capacity and improve the quality of traffic services. However, due to the large number and long front line, according to the characteristics of electrical products, some failures will inevitably occur within a certain period of time. , because the monitoring equipment is scattered and installed on the top of the light pole (there is a risk of climbing operations), the distribution is wide (the road is long, the space delays time), the maintenance and maintenance are difficult and the cycle is long, especially after the warranty period is exceeded, the maintenance volume increases and the failure Frequent occurrence, under the traditional working mode, the cost of manpower, material resources and financial resources will increase accordingly

Images