Research On Traffic Flow Parameters Detetion Equipment Based On The Multi-sensing Information

Traffic parameter collection is the key to construct a complete ITS, so the traffic parameters acquisition system is the key to build a complete ITS system. The research and design of the traffic parameters acquisition system is of great practical significance, and it is the hotspot of the traffic researchers. And the existing traffic parameter detection technology generally use wired data transmission, with a lot of space limitations, and volume of the equipment is generally larger, the power consumption of the system greatly, and the installation method of general more cumbersome, maintain high cost. In addition, the existing traffic parameters detection technology generally only use single sensor information as the detection basis, in bad weather or pedestrians, trees and other error targets, it is easy to cause false detection.In order to solve the existing traffic parameters flow detection equipment common equipment of large volume, high power consumption, data transmission mode space limitations of larger, installation maintenance is complex. In this paper, we study a wireless transmission technologies of miniaturization, low power consumption of traffic flow parameters detection equipment. Based on the change of the magnetic field disturbance and the intensity of the pavement light intensity caused by the vehicle driving, the traffic flow parameters detection is realized.. On the basis of the research technology route, the system design of the traffic flow parameter detection equipment is carried out, including the hardware system design and software design.. In the system hardware design, the design of the sensor data acquisition and wireless communication unit, based on solar panels, self powered power management unit and PC data acquisition and control equipment, including schematic design, printed circuit board design and hardware debugging. In the system software design, the data acquisition node embedded program and PC data acquisition and analysis software are designed.. After the design of the hardware and software, the system is integrated and tested.. In the process of system testing, the stability of the system and the validity of data acquisition are verified, and the data analysis and data analysis of the next step are collected to the original data.. Finally, the sensor data analysis based, is proposed based on geomagnetic information and light perception information of traffic flow parameters acquisition algorithm.In this paper, the detection equipment of the traffic flow parameters is based on a variety of sensing information, and the anti-interference ability and the accuracy of the detection equipment are improved.. In addition, the traffic flow parameters detection equipment has the characteristics of low power consumption, reduces the working period of the equipment, and reduces the maintenance costs of the equipment.. At the same time, this paper studies the self power supply technology based on solar panels, and realizes the system power supply.