Method and system for detecting road conditions
A detection method and technology of road conditions, applied in the direction of traffic flow detection, etc., can solve the problems of few functions and lack of detection technology, and achieve the effect of convenient travel, accurate and reasonable data, and guaranteeing the road network.
Active Publication Date: 2016-08-24
千方捷通科技股份有限公司
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Problems solved by technology
In order to realize the intelligentization of traffic management and control, enable traffic managers to make emergency command and dispatch measures in the shortest time, minimize the impact of traffic accidents on normal traffic, and ensure the smooth flow of the road network, it is necessary to automatically detect the road conditions of the road , but the current automatic road condition detection technology that is actually applied to the road network has relatively few functions, and there is still a lack of detection technology that can accurately detect various road conditions
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no. 1 example
[0072] refer to image 3 It is the first embodiment of the detection system of road conditions of the present invention, including:
[0073] Vehicle detector, change rate calculation module, road condition judgment module;
[0074] The vehicle detector is used to collect the traffic flow, average vehicle speed, and occupancy rate of the road section to be tested in real time, and send the data collected in real time to the rate of change calculation module and the road condition judgment module;
[0075] The rate of change calculation module is used to receive the data collected by the vehicle detector in real time and calculate the rate of change of traffic flow, the rate of change of average vehicle speed, and the rate of change of occupancy rate, and send the calculated rate of change data to the road condition judgment module;
[0076] The road condition judging module is used to receive the data collected by the vehicle detector in real time and the rate-of-change data c...
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The invention relates to a detecting method and system for road conditions. Due to the fact that the road running conditions change gradually along with time, the road conditions in the detecting method and system are divided into a normal passing state, a lining-up passing state and a road congestion state, the traffic flow changing rate, the occupancy changing rate and the speed changing rate are used as bases of warning accidents, and division of the three states is judged according to the threshold of the average vehicle speed and the threshold of the occupancy. According to the detecting method and system for the road conditions, traffic flow data, average vehicle speed data and occupancy data are collected in real time, then all parameters are mutually combined together, the road conditions are judged through a regular process method, the phenomenon that the false alarm rate increases due to the problems of intercommunication, junctions and the like is avoided and various kinds of road condition information can be quickly and accurately obtained.
Description
technical field [0001] The invention relates to intelligent traffic control technology, in particular to a method and system for detecting road conditions of highways. Background technique [0002] With the rapid development of the economy, the ownership of motor vehicles has increased sharply, and the development of expressways has also entered a new stage. However, the growth of road infrastructure in some areas is far behind the increase in traffic demand. Illegal parking, road construction, traffic accidents, bad weather and other factors make traffic congestion more and more serious, and traffic accidents occur from time to time. In order to realize the intelligentization of traffic management and control, enable traffic managers to make emergency command and dispatch measures in the shortest time, minimize the impact of traffic accidents on normal traffic, and ensure the smooth flow of the road network, it is necessary to automatically detect the road conditions of the...
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IPC IPC(8): G08G1/01
Inventor 王果马军李宗杰陈卓
Owner 千方捷通科技股份有限公司