Intersection traffic flow detection data fast identification and reconstruction method
A technology for traffic flow detection and data reconstruction, applied in the field of intelligent transportation, can solve the problems of the traffic flow detection data being difficult to use by traffic managers, the data being difficult to play a value, and the data being easy to identify and process. The effect of low utilization value and equipment utilization
Inactive Publication Date: 2017-11-28
广州市交通规划研究院
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However, the intersection traffic flow detection data are integrated in the intersection adaptive control system, and the openness of most traffic signal control systems is not good, just like a black box, and the data units of the traffic flow detection data are scattered and stored in multiple The data files cannot be read directly, which makes these traffic flow detection data difficult to be used by traffic managers.
[0003] At present, although scholars at home and abroad have done a lot of research on data processing methods for traffic flow detection data, the hot spots and focus of their research are mainly on independent traffic flow detection systems, such as the Chinese invention patent with application number 200910217820.5. identification and processing, but there is basically no processing method for traffic flow detection data in the intersection traffic signal control system, which makes it difficult to use this part of the data and make it difficult for this part of the data to be of value
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[0034] This embodiment provides a method for rapid identification and data reconstruction of traffic flow detection data at intersections, as shown in Figure 1, taking the SCATS traffic signal control system as an example, the specific steps are as follows:
[0035] 1. Master the data relationship and structure of the signal control system
[0036] SCATS is a complex system covering traffic signal control, traffic data collection, and traffic data storage. It needs to deal with a wide variety of data with different levels of importance. This requires the SCATS system to have a set of corresponding data storage methods for different data. deal with. Such as figure 2 As shown, the data storage of the SCATS system includes a three-layer architecture: the lower layer is the signal control machine at the intersection, including the detection coil responsible for collecting traffic flow detection data; the middle layer is the regional server, which is responsible for controlling a...
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The invention discloses an intersection traffic flow detection data fast identification and reconstruction method which includes the following steps: S1, acquiring the data relation and structure of a traffic signal control system; S2, identifying files stored in the traffic signal control system, and obtaining data information in the files; and S3, carrying out matching on the data information identified in S2, and getting an intersection-based traffic flow database through reconstruction. Compared with the prior art, the massive data in the existing traffic signal control system is reconstructed into data that can be directly used, the utilization value of the existing equipment is improved, the cost of traffic investigation is reduced, and a strong basis is provided for traffic decision-making.
Description
technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a method for fast identification and data reconstruction of intersection traffic flow detection data. Background technique [0002] The intersection is the node of the urban road network, which undertakes the traffic conversion function of different flow directions between intersecting roads. With the promotion and use of traffic signal control systems, new traffic flow detection systems have been built at signal control intersections, collecting a large amount of traffic flow detection data and gathering valuable data resources for traffic management. However, the intersection traffic flow detection data are integrated in the intersection adaptive control system, and the openness of most traffic signal control systems is not good, just like a black box, and the data units of the traffic flow detection data are scattered and stored in multiple These data files...
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CPCG08G1/0116G08G1/0129
Inventor 景国胜甘勇华熊文华胡少鹏郑淑鉴佘文晟周沛
Owner 广州市交通规划研究院