Data quality inspection method for bayonet equipment based on positioning data
A technology of quality inspection and equipment data, applied in traffic control systems, instruments, traffic control systems of road vehicles, etc., can solve the problem of low reliability of threshold method detection
Active Publication Date: 2017-07-11
JIANGSU ZHITONG TRANSPORTATION TECH
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[0006] The purpose of the present invention is to provide a data quality inspection method for bayonet equipment based on positioning data, improve the data quality inspection method for bayonet equipment, overcome the defect that the detection reliability of the threshold method is not high in the case of sudden changes in traffic flow, and introduce vehicle positioning data Carry out multi-source data consistency detection, real-time quantitative evaluation of the data detection accuracy of bayonet equipment, identify missed detection and wrong detection records in sample vehicles, and provide more reliable detection of abnormal state of bayonet equipment and missing data repair data support
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[0021] A data quality inspection and control method for bayonet equipment based on positioning data. Virtual detection coils are set around the bayonet area in the road network, and vehicles with positioning detection records in the virtual detection coils are used as inspection sample vehicles. The consistency check between the data and the sample vehicle passing record collected by the bayonet equipment is carried out, and then the abnormal situation of data collection of the bayonet equipment is identified; figure 1 , the specific steps include:
[0022] S1. For the bayonet equipment to be inspected for data quality, set up a virtual detection coil according to the equipment detection area and the layout of roadside positioning equipment in the detection area;
[0023] S2. Obtain the vehicle positioning data, and filter the positioning records whose positioning coordinates are located in the area defined by the virtual detection coil; determine the vehicle that enters the v...
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The present invention provides a data quality inspection method for bayonet equipment based on positioning data. According to the method, a virtual detection loop is arranged at the periphery of the bayonet region inside a road network. A vehicle, with the positioning and detecting record thereof existing in the virtual detection loop, is adopted as a detection sample vehicle. Through the license plate matching process, positioning data and the vehicle-passing record of the detection sample vehicle, acquired by the bayonet equipment, are subjected to consistency check. Furthermore, the abnormal condition of the data acquisition of the bayonet equipment is identified. According to the above data quality inspection method for the bayonet equipment based on the positioning data, the statistics on the mass data of vehicle-passing records is not required. Meanwhile, the abnormal condition of the data acquisition of the bayonet equipment is identified based on the consistency matching result of multi-source data. Therefore, the vehicle detection accuracy of the bayonet equipment can be judged instantly. The vehicle-passing records of some vehicles, which are missed to be detected by the bayonet equipment or the vehicle license plates of the vehicles are identified abnormally, can be clearly detected. The method provides a portion of the data support for repairing missed vehicle-passing records.
Description
technical field [0001] The invention relates to a data quality inspection method of bayonet equipment based on positioning data. Background technique [0002] Bayonet vehicle detection equipment plays a role in urban road traffic control. It can detect vehicle traffic, identify vehicle license plates, detect and capture vehicle violations, etc. Affected by uncertain factors such as equipment working status, network transmission, road traffic conditions, and surrounding environment, bayonet equipment may have data quality problems, such as data loss, data duplication, and abnormal license plate recognition. Data quality problems will directly affect the reliability and stability of the checkpoint detection system, and have adverse effects on traffic control and law enforcement. [0003] At present, the research on the basic data quality control of intelligent traffic detection equipment is limited. Patents 201610160748.7 and 201610160499.1 proposed the threshold method-base...
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IPC IPC(8): G08G1/017
Inventor 陈凝吕伟韬盛旺张韦华李攀
Owner JIANGSU ZHITONG TRANSPORTATION TECH