Continuous path detection device and method based on traffic data

A path detection and path technology, applied in the field of intelligent transportation, can solve the problems that the heuristic path detection processing unit cannot obtain the route result, the path result is discontinuous, and the driving trajectory does not match, so as to avoid the path interruption, shorten the time, and improve the accuracy. Effect

Active Publication Date: 2014-04-23
NEC (CHINA) CO LTD
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Problems solved by technology

However, there are still problems with heuristic path detection: it starts from a matching candidate point of a certain GPS point to all matching candidate points of a subsequent GPS point to detect the path. If the positioning error of this subsequent point is too large, it will cause a matching error. If , it will cause the heuristic path detection processing unit to fail to obtain the correct route result, resulting in the discontinuity of the final path result
In this way, it does not match the actual driving trajectory of the vehicle.

Method used

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  • Continuous path detection device and method based on traffic data
  • Continuous path detection device and method based on traffic data
  • Continuous path detection device and method based on traffic data

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Embodiment Construction

[0037] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to the following exemplary embodiments. In order to clearly describe the basic idea of ​​the present invention, only the components, functions or steps closely related to the technical solutions of the present invention are shown in the drawings, and the specific description of known technologies, functions, components or steps is omitted in the following description .

[0038] figure 2 A block diagram of a path detection device according to an exemplary embodiment of the present invention is shown. The path detection means 20 detects a continuous path based on the collected GPS points. For example, a GPS point may be a GPS sampling point based on a GPS system, such as a GPS point collected by a floating vehicle, a mobile collection device, or a collector. The path detection device 20 includes: a road li...

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Abstract

The invention provides a path detection device and a path detection method. The path detection device comprises a path chain set establishment unit for establishing a matching path chain set, a path chain cost calculation unit for calculating the path chain cost of each matching path chain in the matching path chain set by using a set weight value, and a continuous path detection unit for detecting one or more continuous paths from the matching path chain according to the calculated path chain cost. By the invention, error matching projection points can be filtered out by using a shortest path algorithm and road network connectivity, so that the correct continuous path can be obtained.

Description

technical field [0001] The present invention relates to the field of intelligent transportation, in particular to a path detection device and method, which can detect corresponding continuous paths based on collected GPS points for subsequent road condition calculation and analysis. Background technique [0002] With the rapid development of modern social economy and the continuous deepening of information construction, intelligent transportation systems have begun to be deeply and widely used in the field of transportation. It has become an effective means to solve many problems in this field. The so-called Intelligent Transportation System (Intelligent Transportation System, abbreviated as ITS) is established by effectively integrating advanced information technology, data communication transmission technology, electronic sensing technology, electronic control technology and computer processing technology into the entire ground traffic management system. It is a real-time...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/34G01C21/30
Inventor 饶佳伍涛何君舰胡卫松
Owner NEC (CHINA) CO LTD
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