System for automatic cab model recognition and automatic vehicle flowrate detection and method thereof

An automatic identification and automatic detection technology, applied in the field of traffic flow detection, can solve problems such as identification system failure and development restrictions

Inactive Publication Date: 2008-01-23
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that when the vehicle is slow or stationary, the recognition system will fail
Due to the influence of weather and climate, the current development of the recognition system using image processing technology is also limited.

Method used

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  • System for automatic cab model recognition and automatic vehicle flowrate detection and method thereof
  • System for automatic cab model recognition and automatic vehicle flowrate detection and method thereof
  • System for automatic cab model recognition and automatic vehicle flowrate detection and method thereof

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Embodiment Construction

[0022] A specific embodiment of the present invention uses a magnetic sensor to sense the disturbance of the earth's magnetic field when the vehicle is stationary or running, and analyzes the law of the disturbance of the earth's magnetic field by different vehicles through signal processing, so as to make the final identification, and display The cell displays the result.

[0023] Fig. 1 depicts a system block diagram according to a specific embodiment of the present invention. The power supply unit provides the voltage necessary for other units to work. The magnetic sensor pre-buried under the road or next to the road detects the disturbance of the geomagnetic field when the vehicle is stationary or running, and sends the signal to the acquisition unit through the signal amplification unit and the filter unit, which is converted into a digital signal by A / D, and the digital signal passes through the signal The processing unit processes, makes a recognition result, and prese...

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Abstract

The invention discloses a vehicle flowrate and vehicle type identification system, which comprises one or a group of magnetic sensor for detecting the interference signal of vehicle to earth magnetic field in static state or in motion, a signal amplification unit, a filtering unit for filtering the amplified signal, a collection unit for converting the analog signal into digital signal, a signal processing unit for classified identification of digital signal according to vehicle type and automatic detection of vehicle flowrate and a display unit for displays the identification result. After experiment, it is proved that the invention is able to accurately identify different vehicle characteristics, precisely work out the identification result of vehicle type and vehicle flowrate, prevent the interference of climate and weather and ensure high identification rate.

Description

technical field [0001] The invention relates to the technical field of traffic flow detection, and in particular provides a vehicle type automatic identification and traffic flow automatic detection system and method thereof, which can automatically identify the traffic volume and vehicle type according to the data collected in the system. Background technique [0002] The vehicle detection and vehicle type recognition system, that is, the traffic information collection system, is an indispensable and basic part of the highway and urban road monitoring system. The technical level of the traffic information collection system directly affects the overall operation and management of the highway and urban road monitoring system. Level. With the development of economy, countries all over the world pay more and more attention to this research. Since the 1970s, relevant technical personnel in the art have respectively studied traffic flow and vehicle type recognition systems using...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/017G08G1/042G06F17/30
Inventor 蓝金辉徐玉来施毓俏
Owner UNIV OF SCI & TECH BEIJING
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