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Vehicle positioning system and its special vehicular device and road side facility

A technology for vehicle positioning and vehicle-mounted device, applied in the field of vehicle positioning, can solve the problems of difficult implementation, inaccurate positioning, easy to be interfered, etc., and achieve the effects of low cost, easy implementation and high reliability

Inactive Publication Date: 2005-07-20
于君
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Now there is also a vehicle guidance and positioning method that continuously pre-embeds equidistant magnetic road signs on the road surface, but this method also has the problem of inaccurate positioning and easy interference, and the implementation is relatively difficult

Method used

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  • Vehicle positioning system and its special vehicular device and road side facility
  • Vehicle positioning system and its special vehicular device and road side facility

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] Such as figure 1 Shown, this is a kind of special marking band [1] of vehicle positioning system designed according to the principle of the present invention. The width of this mark band [1] is about 8 centimetres, and its surface has three coded pattern bands (as shown in Figure 8) that are formed by black and white block interlacing in the top, middle and bottom of the barcode. Among them, the coded pattern belt at the bottom is a decimeter scale belt formed by continuous interlacing of 10 cm long black and white blocks [2], and the coded pattern belt in the middle is a meter scale formed of 10 cm long black blocks at intervals of 1 meter Band [3], the upper coding pattern band is the barcode band [4] that is coded by the agreed rules and distributed discontinuously.

[0016] Installed at the corresponding position on the side of the vehicle body, it can be continuously observed during driving figure 1 The optical information reading device with the surface pattern ...

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Abstract

For a problem that a positioning precision of a current vehicle positioning system such as a GPS and the like is lacked, and a reliability is law, the invention proposes to obtain positioning data of a vehicle by a vehicular device having a photoelectric detection and processing system, and a continuous sign band [1] at a roadside which is similar with a bar code and has coding information. The vehicle positioning system, a special vehicular device and roadside equipments have advantages of easy to actualize, low cost, convenient to maintain, accurate positioning, high reliability, and independent of weather, etc., are more preferable to be used in freeways and automatic track traffic systems.

Description

technical field [0001] The invention belongs to vehicle positioning technology, and relates to a vehicle positioning system and its special vehicle-mounted device and roadside facilities. Background technique [0002] In the modern transportation system, the vehicle location technology is the core technology of the intelligent transportation system (ITS) which is constantly developing. ITS is mainly composed of traffic information management center, roadside system, in-vehicle system, demand management system and traffic management control system. The normal operation of these systems generally relies on real-time vehicle location information. Therefore, vehicle positioning technology is widely used in ITS. Generally, people hope that the higher the positioning accuracy and the higher the reliability of the vehicle, the better, but at the same time they want the cost to be as low as possible. Therefore, it is very meaningful to study how to obtain high-precision positioni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00G06K7/00G08G1/133
Inventor 于君
Owner 于君
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