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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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  • Description
  • Claims
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AI Technical Summary

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 certain section of the target road network, a certain intersection, and a certain direction in a certain period of time in the future, so as to solve the inaccurate prediction of road passage time in the prior art, and it is impossible to implement independent change of navigation according to road passage time line problem

Method used

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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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Embodiment 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 the segmentation of each navigation route of the reference vehicle, calculate the segmentation time of each passage segment , and the traffic light time between every two traffic segments, predict the time-consuming of the reference vehicle at the current time point, select the navigation route, and after driving along the selected navigation route, also calculate all the navigation by real-time The passage section of the route is time-consuming, and the navigation route can be replaced to help users choose the best passage route, optimize the passage time, and calculate the time-consuming passage section of the navigation route in real time, which can improve the accuracy of the road passage budget.

[0058] Therefore, the present invention can guarantee the effectiveness of road tran...

Embodiment 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 flow of the method is specifically: first divide the navigation route of the reference vehicle into several transit segments according to the intersection of traffic lights, and Traffic light intersections distributed between two traffic segments, and then collect the average time-consuming data of vehicles in each traffic segment before the current time point, and the average traffic light waiting time of vehicles moving in the same direction as the reference vehicle, and finally The average time-consuming data of the passage segment and the average waiting time of traffic lights are accumulated to obtain the total time-consuming time for the reference vehicle to reach the destination, and the time-consuming time for reaching a specific intersection in the middle can also be obtained.

[0066] This method re-tim...

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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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