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Multilevel multi-modal routing navigating method

A navigation method and multi-modal technology, applied in the field of routing and navigation, can solve the problems of unseen multi-level and multi-modal routing and navigation patent documents, unmatched navigation ideas, and inappropriate multi-level routing algorithms.

Inactive Publication Date: 2009-12-23
XIAMEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (2) The multi-level routing algorithm is improper
[0010] (3) The navigation idea does not match
So far, there is no complete multi-level multi-modal path-finding navigation patent literature

Method used

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Embodiment Construction

[0050] The following embodiments will further illustrate the present invention in conjunction with the accompanying drawings.

[0051] see figure 1 , the principle of the technical scheme of the present invention is based on a multi-level three-dimensional digital map database, including a multi-level three-dimensional road network model and a multi-scale three-dimensional building model. Under the support of high-precision vehicle positioning technology, the three-dimensional GIS system operating platform is used to provide multi-level Route optimization and multi-modal route navigation meet personalized navigation services in complex urban environments. The key modules are described as follows:

[0052] 1) Multi-level 3D road network model: organize the same road into three levels of geometric and network topology structures of "road centerline-traveling lane-actual lane" according to different levels of detail, and build their internal relationships. Among them, the road ...

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Abstract

A multilevel multi-modal routing navigating method relates to a routing navigation, which is implemented by establishing a road central line node table and an arc section table, generating topology texts T1 and T2, inputting starting point S and destination D, reading road central line and traffic lane attribute data, and calculating optimal routes R1 and R2 based on T1 and T2; establishing actual traffic lane topological structure T3, and recording physical traffic lane ID, virtual traffic lane ID as well as associated starting point ID and destination ID; reading actual traffic lane attribute data, and calculating optimal route R3 based on T3; according to R1, generating a buffer area B1 with certain range d1 in a dynamic way, selecting out architecture set L1 in B1, expressing L1 in a 2D visible window, selecting out landmark architecture set L2 in L1, expressing L2 in the 2.5D visible window, according to the coordinate position of a driver, dynamically calling a buffer area B2 of d2, selecting real time visible landmark L3 containing L2 in B2, and dynamically calling in road traffic relevant facilities in B2.

Description

technical field [0001] The invention relates to a route-finding navigation, in particular to a multi-level and multi-modal route-finding and navigation method used for traveling by various vehicles. Background technique [0002] Route-finding navigation is a key technology in many important application fields such as location-based services, intelligent transportation, and emergency response. With the rapid development of cities, complex road network systems and transportation facilities have appeared in large cities, such as elevated roads, underground passages, auxiliary roads, overpasses, etc., all showing typical three-dimensional characteristics. Accompanied by the dynamics, diversity and specialization of traffic control, such as steering restrictions, one-way traffic, emergency lanes, speed limit lanes and so on. Faced with such a complex traffic environment, there are new requirements for the service quality of route-finding navigation, especially in terms of person...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34
Inventor 李渊朱庆张叶廷杜志强
Owner XIAMEN UNIV
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