A vehicle information identification system and identification method
A vehicle information and recognition method technology, which is applied in the traffic control system of road vehicles, neural learning methods, traffic control systems, etc., can solve the problems of high price, requirements for installation angle and height, low detection accuracy and vehicle type classification accuracy, etc. problems, to achieve the effect of saving installation costs, ensuring accuracy, and superior vehicle recognition performance
Active Publication Date: 2021-03-23
CHANGAN UNIV
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Problems solved by technology
When the vehicle passes through this microwave band, it will reflect the electromagnetic wave, and the passing of the vehicle can be detected by extracting the difference frequency signal in the reflected wave, but the price is relatively expensive, and there are requirements for the installation angle and height
In addition, the existing detection methods have low detection accuracy and vehicle type classification accuracy
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[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0040]A vehicle information identification system, including a geomagnetic sensor, a communication module and a host computer; several geomagnetic sensors are arranged under the road at intervals, and the geomagnetic sensors are used to collect geomagnetic disturbance information; the geomagnetic disturbance information is sent to the host computer through the communication module; th...
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The invention discloses a vehicle information identification system and method. The method is characterized in that the time gap between pre-processed data of two adjacent geomagnetic sensors is eliminated by a host computer, and the DTW algorithm is utilized to align feature points of the data after time gap elimination; the adaptive weighted fusion method is utilized by the host computer to fusethe data after the feature points are aligned; the FWOA-GA-BP neural network algorithm is utilized by the host computer to classify vehicle types according to the fused data. The method is advantagedin that the DTW algorithm is utilized to align the feature points of the vehicle data, the adaptive weighted fusion method of related functions is utilized to fuse the sensor triaxial data, the FWOA-GA-BP neural network algorithm is utilized by the host computer to classify the vehicle types according to the fused data, and system detection accuracy and vehicle type classification accuracy are improved.
Description
technical field [0001] The invention belongs to the field of vehicle information detection, and in particular relates to a vehicle information identification system and identification method. Background technique [0002] In recent years, the development of intelligent transportation system is the solution to the problems of traffic congestion caused by the rapid increase in the number of cars, long commuting time, frequent traffic accidents, energy shortage caused by automobile fuel consumption, and urban air quality decline caused by automobile exhaust emissions. Question best means. For vehicle information identification technology, the acquisition of vehicle information has become the first problem that must be solved in intelligent transportation. [0003] At present, the main vehicle information identification technologies include loop coil vehicle information identification technology, microwave vehicle information identification technology and so on. The toroidal c...
Claims
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IPC IPC(8): G08G1/042G08G1/015G06N3/08
CPCG06N3/084G08G1/015G08G1/042
Inventor 雷旭候亚虹张帅杨雅麟冯斌赵熙陈毅
Owner CHANGAN UNIV