Variable message sign application system, electronic navigation apparatus and method

An electronic navigation and variable technology, applied in the field of navigation, can solve problems such as accidents, traffic congestion, and reduce the travel efficiency of vehicle users, so as to achieve the effect of improving driving efficiency and reducing risks

Active Publication Date: 2012-09-26
NAVINFO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to temporary changes in conditions such as traffic, roads, and climate, such as speed limits, lane control, temporary road construction, traffic accidents causing congestion, and bad weather leading to temporary road closures, etc., the map software only recor

Method used

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  • Variable message sign application system, electronic navigation apparatus and method
  • Variable message sign application system, electronic navigation apparatus and method
  • Variable message sign application system, electronic navigation apparatus and method

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Embodiment Construction

[0038] As a part of intelligent transportation system, Variable Message Sign (VMS), sometimes abbreviated as CMS (Changeable Message Sign) or DMS (Dynamic Message Sign), records a variety of dynamic information related to road and driving, such as Weather warning information, road special time period information, driving instructions, etc., are mostly displayed by hanging electronic display screens to display dynamic information, usually installed on both sides or above the road, with a fixed geographical location and signboard orientation. This information is provided by the VMS monitoring center, or the VMS is manipulated on-site by the traffic police. The VMS application system structure is as follows figure 1 As shown, the VMS monitoring center collects information from the traffic police department, as well as from road administration, road construction maintenance, emergency telephones, vehicle detectors, cameras and other field equipment, as well as service areas, toll ...

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Abstract

The invention provides a variable message sign (VMS) application system, an electronic navigation apparatus and a method. The electronic navigation method comprises steps of: receiving a VMS message and a VMS geographic location message; conducting classified analysis on the VMS message to obtain analysis data; conducting map-matching by using the analysis data and / or the VMS geographic location message to obtain map data; and carrying out navigation application according the map data. The VMS application system comprises a VMS monitor center and at least one VMS. The VMS monitor center sends the dynamic message published by the VMS to the electronic navigation apparatus and carries the geographic location message, so that the electronic navigation apparatus can utilize the received message to conduct navigation. According to the invention, dynamic road message can be acquired by the electronic navigation apparatus on a real-time basis, so that the electronic navigation apparatus can guide travelling more effectively.

Description

technical field [0001] The present invention relates to the field of navigation, in particular to a variable information sign application system, and an electronic navigation device and method. Background technique [0002] Electronic navigation is generally used in car GPS navigation systems, and its built-in GPS antenna will receive data information from at least 3 of the 24 GPS satellites around the earth, combined with the electronic map stored in the car navigator, through GPS The position coordinates determined by the satellite signal are matched with this, and the accurate position of the car in the electronic map is determined, that is, the positioning function. On the basis of positioning, the electronic navigation device can provide the best driving route, road conditions ahead and practical information such as nearby gas stations, restaurants and hotels through the multi-function display. . [0003] However, due to temporary changes in traffic, roads, climate an...

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Application Information

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IPC IPC(8): G01C21/36
Inventor 马常杰徐晋晖
Owner NAVINFO
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