Vehicle Classification Method Based on Two-column Vertical Radar Waves

A classification method and radar wave technology, applied in the reflection/re-radiation of radio waves, traffic control systems of road vehicles, radio wave measurement systems, etc., can solve problems such as inability to distinguish vehicle types, and improve accuracy and stability , Improve the speed of type classification, and the effect of precise detection accuracy

Inactive Publication Date: 2011-12-21
LIAONING JINYANG GROUP INFORMATION TECH
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Problems solved by technology

[0004] The above two methods can only realize the data collection of speed and traffic flow, and cannot specifically identify the model of each vehicle passing through the detection area.

Method used

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  • Vehicle Classification Method Based on Two-column Vertical Radar Waves
  • Vehicle Classification Method Based on Two-column Vertical Radar Waves
  • Vehicle Classification Method Based on Two-column Vertical Radar Waves

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Embodiment Construction

[0030] The method of the present invention will be described in detail in conjunction with the accompanying drawings.

[0031] A vehicle classification method for dual-column vertical radar waves:

[0032] ⑴ Detection device setting: a microwave vehicle detector is installed on the side of the road in a conventional way, such as figure 1 As shown, the microwave vehicle detector adopts a conventional array dual microwave radar, and the microwave vehicle detector is composed of a vector decomposition module, a frequency analysis module and a microprocessor, and the calculation method software of the present invention is installed in the microprocessor.

[0033] (2) Transmitting wave and echo: The microwave vehicle detector adopts frequency-modulated continuous wave radar, and the microwave vehicle detector transmits a continuous wave whose frequency increases linearly with time in a fixed direction within a cycle, and continuously receives echoes from this direction . The di...

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Abstract

The invention discloses a vehicle classification method for double-row vertical radar waves. A microwave vehicle detector is installed on the side of the road. The microwave vehicle detector adopts an array type double microwave radar. The microwave vehicle detector is composed of a vector decomposition module and a frequency analysis module. and a microprocessor. The method of the present invention is a comprehensive identification and analysis of the echo characteristics, analyzing the characteristic value of the echo to obtain a group of typing results, analyzing the frequency of the echo, and then obtaining a group of typing results; finally, the The two classification results are weighted to obtain the final vehicle classification result. Because this product adopts the two-level small network classification method in the neural network, it can greatly improve the classification speed, solve the real-time problem of vehicle classification, and improve the accuracy and stability of classification.

Description

technical field [0001] The invention relates to digital radar wave detection technology, in particular to a vehicle classification method based on dual-column radar waves. Background technique [0002] With the development of the national highway system, the significance of traffic volume data collection and analysis is becoming more and more important. What came into being is the generation of the traffic survey system. The basic composition of today's traffic volume survey system is composed of three parts: vehicle detectors, computing processing units, and host computer software. The research on vehicle detectors is mainly divided into the following methods: coil detection methods, video detection methods , Microwave detection method, ultrasonic detection method, magnetic detection method, laser detection method. [0003] At present, in the field of microwave detection, microwave detectors are mainly used in two ways: roadside side mode and forward mode. The working pr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/017G01S13/91G01S13/92G01S7/41
Inventor 范德日曲秋江郑学明武志东田威王强李鸿飞姚国梁秦勤华丹军杨晓非宋训洋于光华
Owner LIAONING JINYANG GROUP INFORMATION TECH
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