Sensor network for obtaining urban road traffic state

Abstract

The invention discloses a sensor network for acquiring state of urban road traffic pertaining to the field of information technology. The sensor network includes access nodes or sensors with field bus communication interface, composite nodes and a central processor unit, wherein, the access nodes are connected to the sensors, and are connected to the composite nodes through the field bus; composite nodes receive data from the access nodes or sensors with field bus communication interface through field bus, and transmit the data to the central processor unit through a large data bulk communications network; the central processor unit is located at the traffic command center, receives the data transmitted from the composite nodes through the large data bulk communications network; and perform comprehensive processing to the obtained data. The invention integrates the existing road traffic sensors into a unified system, and realizes the information intercommunication and interconnection between distinct types of sensors; at the same time, greatly reduces the pressure to the network and central processor unit during data transmission and processing.

Description

technical field [0001] The invention belongs to the technical field of network information, and in particular designs a sensor network for acquiring urban road traffic status. Background technique [0002] The development of urban economy and the popularity of automobiles have caused problems such as urban road traffic congestion, energy waste, and environmental pollution. In order to solve the problem of urban road traffic congestion, intelligent transportation system came into being. Intelligent Transportation System (ITS for short) is the effective comprehensive application of advanced computer processing technology, information technology, data communication transmission technology, automatic control technology, artificial intelligence and electronic technology in the transportation management system, and establishes A punctual, accurate and efficient transportation management system that works in a wide range and in all directions. [0003] One of the basic and key te...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the problem that the information between different types of sensors for obtaining road traffic status existing in the process of intelligent transportation system construction cannot be interoperable and interconnected, and the transmission and processing of data put a huge pressure on the network and the central computer. As well as the high cost of laying different sensors and building their own network communication systems, a sensor network for acquiring urban road traffic status is proposed

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