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A real-time dynamic traffic information data system and its update method
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A technology of real-time traffic information and traffic information, applied in the real-time dynamic traffic information data system and its update field, can solve the problems of non-macro, incomplete and inaccurate information, and achieve the effect of ensuring accuracy and real-time performance.
Active Publication Date: 2020-10-09
江苏泰坦智慧科技有限公司
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[0006] Aiming at the above deficiencies or improvement needs of the prior art, the present invention provides a real-time dynamic traffic information data system and method, the purpose of which is to update the interface of real-time traffic information concurrently, and to reproduce the traffic information of vehicles on the traffic map constructed by the real road network. Driving behavior, more accurate and comprehensive real-time synchronization of urban road traffic conditions, thereby solving the existing technical problems of incomplete, macroscopic and inaccurate information based on direct video stream or GPS information feedback
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Embodiment 1
[0073] A real-time dynamic traffic information data system, according to distributed data storage, includes: a traffic information storage unit, multiple concurrent real-time traffic information update interfaces, and a reading unit;
[0074] The traffic information storage unit is used to store real-time traffic information data, the traffic information data includes a map information table, a traffic control signal information table, a phase dictionary, and a dynamically updated vehicle structure information table;
[0075] The map information table has an update cycle of one week. When the system is working normally, it is regarded as static data and stored in a database. It at least includes: lane ID, lane attributes, average speed, lane length and position; intersection ID, intersection associated lane, intersection position , intersection attribute.
[0076] The lane ID is in one-to-one correspondence with the actual lane, and is the unique mark of the lane; the lane att...
Embodiment 2
[0090] A method for updating a real-time dynamic traffic information data system, applied to the real-time dynamic traffic information data system provided in embodiment 1, comprising the following steps:
[0091] The traffic control signal information table is updated synchronously according to the traffic control signal update interface in the real-time traffic signal control interface:
[0092] Real-time traffic control signal update interface. For traffic signals with no definite changing rules, use this interface, such as manual traffic lights for pedestrians, traffic lights controlled by traffic police, etc., to read data from its associated signal device at an update frequency of once per second. Take operation, update the data of the real-time traffic control signal update interface;
[0093] Fixed traffic control signal update interface. For the current large number of traffic signals that change according to fixed rules, this type of interface is used. The data of th...
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Abstract
The invention discloses a real-time dynamic traffic information data system and an updating method thereof. The system includes a traffic information storage unit, multiple concurrent real-time traffic information updating interfaces, and a reading unit. The method includes: multiple concurrent real-time traffic information update interfaces update data in real time according to their own frequency; the traffic information storage unit performs synchronous, asynchronous or mixed update according to the data acquired by the real-time traffic update interface. The invention accurately and completely synchronizes the traffic conditions of the actual road network, and serves as the basis for intelligent traffic control and intelligent route planning.
Description
technical field [0001] The invention belongs to the field of computer applications, and more specifically relates to a real-time dynamic traffic information data system and an updating method thereof. Background technique [0002] There are a large number of surveillance cameras deployed in the city. Although the live video of traffic at intersections can be seen through the cameras, it is difficult to directly show the overall and macroscopic city traffic. On the other hand, although the methods of constructing urban traffic real-time based on user-feedback GPS information such as AutoNavi Map and Baidu Map give the overall macro-traffic real-time situation, there are two problems in this type of method: [0003] 1) The information dimension is low. Generally, only the congestion status of the road can be seen, such as severe congestion, mild congestion, no congestion, etc., and it cannot specifically display the real traffic conditions on the road, such as whether there i...
Claims
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