intelligent traffic signal control system and method based on an NB-IOT network

Abstract

The invention relates to an intelligent traffic signal control system and method based on an NB-IOT network. The system includes an encryption module, an MCU controller, and an NB-IOT communication module. The intelligent traffic signal control system and method based on the NB-IOT network can wirelessly control a plurality of traffic signal controllers dispersed in the area by using the NB-IOT communication module for wireless data transmission. The invention has great advantages such as low deployment cost, simple maintenance, flexible deployment, real-time information collection and real-time fault detection. Meanwhile, the collected information can be analyzed through an operation management platform of a control system center, corresponding degradation processing can be carried out if the situation that the on-site power supply voltage of the traffic signal controller is unstable is detected, a user is informed of carrying out fault processing to recover the normal voltage and the like, and further intelligent management and control are achieved.

Description

technical field [0001] The present invention relates to the field of communication, in particular to the field of traffic signal control, and specifically refers to an intelligent traffic signal control system and method based on NB-IOT network. Background technique [0002] The intelligent traffic signal control device is an important part of the road traffic signal control system. Its purpose is to collect road traffic signal failure information, environmental information and geographic location information, etc., and send the road traffic signal status information to the communication base station in real time. [0003] Existing intelligent traffic signal control devices are mainly based on wired transmission schemes and wireless transmission schemes based on GSM or 4G communication technology. The wired transmission scheme mainly uses optical fiber access or leased cables to transmit traffic signals. Although this method is stable and reliable, in the implementation of t...

AI Technical Summary

Problems solved by technology

The wired transmission scheme mainly uses optical fiber access or leased cables to transmit traffic signals. Although this method is stable and reliable, in the implementation of the project, the cables are generally installed in the air and then laid underground. Since there are various aerial and underground facilities in the city, This has brought many difficulties to the construction of the project, increased the cost of the project, and it is difficult to maintain in the later stage, and the scalability is also poor, so there are big shortcomings in terms of development prospects and environmental adaptation.

At present, the wireless transmission technology used in the market is basically based on the transmission scheme of GSM and 4G cellular network communication technology. It needs to collect information through the relay gateway and then feed it back to the base station. The network deployment is complex, multi-network networking, high cost, and safe. Low stability, and cannot be monitored normally in harsh environments

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