Accurate positioning system and method for vehicle

A precise positioning and vehicle technology, which is applied in satellite radio beacon positioning system, positioning, radio wave measurement system, etc., can solve the problems of global positioning device position error and error

Inactive Publication Date: 2008-05-07
XINGYI SCI & TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a vehicle precise positioning system, which can solve the problem that when the vehicle is running at high speed, the global positioning device only outputs the coordinates of the vehicle at that time due to a long time interval. The vehicle's precise vehicle positioning system can get the most accurate position of the vehicle
[0005] Another object of the present invention is to provide a method for precise vehicle positioning, the steps provided by the method can solve the problem that the global positioning device will generate position errors when the global positioning satellite signal cannot be received in the prior art

Method used

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  • Accurate positioning system and method for vehicle
  • Accurate positioning system and method for vehicle

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Embodiment Construction

[0023] The present invention provides an accurate positioning system for a vehicle. The accurate positioning system for a vehicle is assembled on a vehicle M so as to provide accurate positioning for the vehicle M in real time. FIG. 2 is a system architecture diagram of a preferred embodiment of the precise vehicle positioning system of the present invention. As shown in the figure, the vehicle precise positioning system includes a global positioning device 11 (GPS, Global Positioning system), a gyroscope detector 21 (GYRO sensor), a vehicle speed measuring device 22 (car speed meter), a control Device 3 , a display screen 51 , a memory device 12 , an adjusting device 4 (adjusting device), an analog-to-digital converter 211 (A / D converter), and an electronic map database 23 .

[0024] The global positioning device 11 of the present invention outputs the current global positioning coordinates P (GPS coordinates) of the vehicle M every first time interval T (first interval). In...

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Abstract

The invention relates to an accurate vehicle positioning system and the method thereof, being assembled and used on a vehicle, which comprises a global positioning device, a gyroscope detector, a speed measuring device and a controller. When the global positioning device outputs the next global positioning coordinate, the controller calculates the next reference position coordinate according to the gyroscope detector and the speed measuring device of the vehicle, and calculates the spacing distance between the next global positioning coordinate and the next reference position coordinate, therefore when the spacing distance is larger than a specific distance, the controller designates the next global positioning coordinate as the next accurate position coordinate and outputs the coordinate; contrarily, the controller designates the next reference position coordinate as the next accurate position coordinate and outputs the coordinate.

Description

technical field [0001] The invention relates to a vehicle positioning technology, in particular to a vehicle precise positioning system and method. Background technique [0002] FIG. 1 shows a conventional vehicle with a navigation system function. A global positioning device 81 (Global Position System, GPS) and a navigation device 82 are installed on the vehicle. It is known that the GPS global positioning device 81 receives signals from a plurality of global positioning satellites 9 in space at any time, and calculates the vehicle coordinates at any time. The microprocessor 821 of the navigation device 82 compares the built-in electronic map database 822, and calculates the corresponding position of the vehicle coordinates in a map data of the electronic map database 822 at that time, and then displays a symbol representing the vehicle on the display 83 . In order to allow the driver to know the location of the vehicle in real time while driving, and perform navigation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/26G01C21/28G01C21/20G01S5/02G01S5/14G01C21/16G01C21/18G01S19/47
Inventor 陈国荣李俊忠杨明文
Owner XINGYI SCI & TECH
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