Method for acquiring road network matching track of mobile object

A technology of road network matching and moving objects, which is applied in the traffic control system of road vehicles, traffic flow detection, instruments, etc., to achieve the effect of improving statistical analysis accuracy, improving trajectory accuracy, good compatibility and flexibility

Inactive Publication Date: 2010-10-20
INST OF SOFTWARE - CHINESE ACAD OF SCI
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  • Description
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However, according to the in-depth and detailed literature research and analys

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  • Method for acquiring road network matching track of mobile object
  • Method for acquiring road network matching track of mobile object
  • Method for acquiring road network matching track of mobile object

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Embodiment Construction

[0119] Below in conjunction with accompanying drawing, further illustrate the present invention by example, but do not limit the scope of the present invention in any way.

[0120] The moving object (set its identity as moid) first follows the Figure 5 In the process shown, the moving vector sequence mvArray based on Euclidean space is collected by GPS and sent to the server. Suppose the driving process of the moving object is as follows: Figure 8 As shown, the following motion vector sequence can be obtained through acquisition:

[0121] mvArray = ((t1, (x1, y1), v1, d1),

[0122] (t2, (x2, y2), v2, d2),

[0123] (t3, (x3, y3), v3, d3),

[0124] (t4, (x4, y4), v4, d4),

[0125] (t5, (x5, y5), v5, d5),

[0126] (t6, (x6, y6), v6, d6),

[0127] (t7, (x7, y7), v7, d7),

[0128] (t8, (x8, y8), v8, d8))

[0129] After the database server receives the above moving vector sequence sent by the moving object moid, it will Figure 6 The shown flow chart performs the followi...

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Abstract

The invention discloses a method for acquiring a road network matching track of a mobile object, and belongs to the fields of spatiotemporal databases and intelligent transportation systems. The method comprises that: a) the mobile object acquires mv sequences and sends the mv sequences to a server in batches, wherein mv refers to a mobile vector; b) the server performs road network matching on each mv in the mv sequences to obtain nmv sequences, wherein the nmv refers to the road network matched mobile vector; and c) the server performs path matching on each nmv in the nmv sequences to obtain and store the road network matching track. The method can be used for the intelligent transportation systems.

Description

technical field [0001] The invention belongs to the field of temporal-spatial database and intelligent transportation system, and relates to road network matching of moving objects, in particular to a method for collecting time-space trajectory of road network matching for moving objects based on a moving object database and a traffic flow statistical analysis method based on the same. Background technique [0002] With the development and combination of mobile computing technology, sensor network technology and intelligent transportation technology, the space-time trajectory data collection and network traffic flow analysis technology based on moving objects (or floating vehicles) has become a new research hotspot, and in the actual Intelligent transportation system has been more and more widely used. After China's accession to the World Trade Organization, the contradiction between the continuous growth of traffic demand and the limitation of road traffic capacity has beco...

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Application Information

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IPC IPC(8): G08G1/00G08G1/01
Inventor 丁治明
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI
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