A tunnel road advance guidance system

A guidance system and tunnel technology, applied in the field of vehicle navigation, can solve problems such as easily causing traffic accidents, and achieve the effects of improving driving safety, reducing driving danger, and simple and accurate positioning algorithms.

Active Publication Date: 2017-07-28
SHENYANG MXNAVI CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, when the vehicle drives out of the tunnel, the driver often has a "bright adaptation" physiological phenomenon, and because the road conditions outside the tunnel are usually more complicated, it is easy to cause traffic accidents

Method used

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  • A tunnel road advance guidance system

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Embodiment Construction

[0050] The present invention is described in detail below in conjunction with accompanying drawing:

[0051] combine figure 1 , the present invention provides a tunnel road advance guidance system, comprising:

[0052] (1) Map data storage module

[0053] The map data storage module is used to store the electronic map, and, along with the road construction, the electronic map needs to be updated in time, so that the electronic map can reflect the latest road information and improve the accuracy of navigation.

[0054] Wherein, the electronic map includes road length information and road attribute information; the road attribute information includes two kinds of attributes: tunnel road attribute and non-tunnel road attribute; tunnel road attribute refers to: a road with a tunnel built above the road; The attribute refers to a road without a tunnel built above the road; therefore, by reading the attribute information of the road, it is possible to quickly know whether a tunnel...

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Abstract

The invention provides a system for guiding a tunnel road in advance. The system comprises a map data storage module, a driving route planning module, a GPS positioning module, a GPS navigating module, a tunnel entrance detection module, an inside-tunnel positioning module, an inside-tunnel navigating module, a tunnel exit detection module and a tunnel exit prompting module. The system has the advantages that when a vehicle approaches a tunnel, a tunnel entrance position is reported in advance, so that a driver can prepare for entering the tunnel; when the vehicle enters the tunnel and runs inside the tunnel, the vehicle is navigated based on a non-GPS positioning way; when the vehicle leaves from the tunnel, a tunnel exit position is reported in advance, so that the driver can prepare for leaving from the tunnel; therefore, for a road with the tunnel, the system can comprehensively improve the driving safety and reduce driving dangers; in addition, the non-GPS positioning provided by the invention has the advantage of a simple and accurate positioning algorithm.

Description

technical field [0001] The invention belongs to the technical field of vehicle navigation, and in particular relates to an advance guidance system for tunnel roads. Background technique [0002] With the rapid growth of the number of cars and the increasing complexity of roads, car navigation has been widely used; and, with the increase in the number of users, people's various requirements for navigation are also getting higher and higher. [0003] Existing car navigation systems are mainly based on GPS signals for navigation, that is: after the user sets the starting point and end point of the route in the car navigation system, the car navigation system receives the real-time location information of the vehicle through the GPS system during the driving process of the vehicle; After comprehensively analyzing the real-time location information of the vehicle, the current road condition information and the end point of the route, the driving guidance information of the vehicl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/34
CPCG01C21/34
Inventor 戴兵迟丽丽张海波
Owner SHENYANG MXNAVI CO LTD
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