Road passing time estimation system and method based on isochronous positioning monitoring

A technology for road traffic and time estimation, which is applied in the traffic control system of road vehicles, satellite radio beacon positioning system, traffic control system, etc., can solve the problems of inaccurate road traffic time prediction, change of navigation routes, etc., and achieve scientific improvement Sex and rationality, guaranteed effectiveness, and strong applicability

Active Publication Date: 2020-11-20
SOUTHWEST JIAOTONG UNIV
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  • Claims
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Problems solved by technology

[0007] To this end, the embodiment of the present invention provides a system and method for estimating road transit time based on isochronous positioning monitoring, by calculating the time-consuming navigation route within the statistical time , can predict the passage time of a certain vehicle passing through a cert

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  • Road passing time estimation system and method based on isochronous positioning monitoring
  • Road passing time estimation system and method based on isochronous positioning monitoring

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[0056] Example 1

[0057] Such as figure 1 As shown, the present invention provides a road transit time estimation system based on isochronous positioning monitoring. The key point of the present invention is: for each navigation route segment of the reference vehicle, calculating the segment time consumption of each transit segment , And the traffic light time between every two traffic segments, predict the traffic time of the reference vehicle at the current time point, select the navigation route, and after driving along the selected navigation route, it also calculates all navigation in real time The passage of the route is time-consuming, and the navigation route is changed to help users choose the best route, optimize the travel time, and calculate the passage of the navigation route in real time, which can improve the accuracy of the road travel budget.

[0058] Therefore, the present invention can guarantee the validity of road transit time to the greatest extent, is helpfu...

Example Embodiment

[0064] Example 2

[0065] Such as figure 2 As shown, the present invention also provides a method for estimating road transit time based on isochronous positioning monitoring. The main process of this method is specifically as follows: firstly, the navigation route of the reference vehicle is divided into a number of traffic sections according to the intersection of traffic lights, and Distributed at the traffic light intersections between two traffic segments, and then collect the average value of the time-consuming data of the vehicles before the current time point in each traffic segment, and the average value of the traffic light waiting time of the vehicles in the same moving direction as the reference vehicle, and finally The average value of the traffic segment time-consuming data and the average value of the waiting time of the traffic lights are accumulated to obtain the total time taken by the reference vehicle to reach the destination, and the time taken to reach a ce...

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Abstract

The embodiment of the invention discloses a road passing time estimation system and method based on isochronous positioning monitoring, and the method comprises the following steps: carrying out the statistics of the number of intersections of an urban road network, and setting a road section between every two intersections as a passing section; collecting GPS navigation routes of all vehicles byusing a central server, analyzing passing sections contained in each navigation route, and counting passing time consumption data of each passing section; planning a navigation route by using a GPS navigation system of the reference vehicle, and determining a passage section contained in each navigation route; selecting the budget time of the passage section of each navigation route, extracting the average passage time consumption value of the corresponding passage section, and accumulating the time consumption of each passage section to obtain the total passage time length; performing time-consuming statistics on the passage sections of all the navigation routes once again after passing through each passage section. According to the scheme, the passing time of a certain vehicle passing through a certain intersection of a certain road section of the target road network in a certain time period in the future is obtained through arrangement and calculation.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of reference vehicle spatial position acquisition, and in particular to a system and method for estimating road transit time based on isochronous positioning monitoring. Background technique [0002] Accurate estimation and prediction of urban road transit time is crucial to improving urban traffic conditions, and its goal is to calculate accurate road network transit time information in order to select better routes in the road network to minimize transit time. If you want to accurately evaluate the passage time of road sections, the core is to obtain good real-time vehicle information from road sensors. [0003] However, in most cases, the road passing time estimation system can only obtain the current discrete vehicle speed and position information according to the vehicle GPS navigation and positioning system in real time, so when estimating the road passing time, only according to ...

Claims

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Application Information

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IPC IPC(8): G08G1/01G01S19/52G01S19/42G01C21/34G01C21/20G01C21/16
CPCG08G1/0104G08G1/012G08G1/0137G01C21/165G01C21/20G01C21/343G01S19/52G01S19/42
Inventor 邱小平
Owner SOUTHWEST JIAOTONG UNIV
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