A kind of expressway whole-process monitoring node detection circuit

Abstract

The present invention provides a detection circuit for full-range monitoring of expressways, including an analog-to-digital conversion circuit, the analog-to-digital conversion circuit is connected to a first power conversion circuit and a second power conversion circuit, and the first power conversion circuit is connected to a current sampling circuit , 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 amplifier circuit, the other end of the voltage sampling circuit is connected with a second rectification operational amplifier circuit, the first The rectifying operational amplifier circuit and the second rectifying operational amplifier circuit are connected to the equipment to be detected, and the operating status and current situation of the monitoring equipment can be remotely monitored in time through current sampling and voltage sampling. When the current of a node is too large, it automatically controls the shutdown of the corresponding equipment to ensure the smooth operation of each equipment.

Description

technical field [0001] The invention belongs to the technical field of network monitoring, and in particular relates to a detection circuit for a full-range monitoring node of an expressway. Background technique [0002] The expressway road monitoring system collects and forecasts all kinds of road information 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 manager monitors (displays) The device intuitively understands the traffic operation status. When abnormal traffic occurs, 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 expressway 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 service. However, due to the large ...

AI Technical Summary

Problems solved by technology

[0003] The whole process monitoring of expressway 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 service. However, due to the large number and long front, 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

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