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Vehicle navigation system for amending display and its display amending method

A technology of vehicle navigation system and display method, which is applied in the field of vehicle navigation system and its correction display, and can solve problems such as vehicle position display errors

Inactive Publication Date: 2008-01-23
XINGYI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a vehicle navigation system with corrected display and its corrected display method. The system and method can solve the problem of vehicle position display error due to the error of the global positioning device GPS.

Method used

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  • Vehicle navigation system for amending display and its display amending method
  • Vehicle navigation system for amending display and its display amending method
  • Vehicle navigation system for amending display and its display amending method

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Embodiment Construction

[0026] Fig. 3 is a block diagram of the vehicle navigation system with modified display of the present invention. The vehicle navigation system includes a gyroscope device 310, a global positioning device (Global Position System, GPS) 320, a vehicle speed measurement device (velocity measurement) 330, an electronic map database 340, a display screen 350, and a control device 360.

[0027] The gyroscope device 310 is installed on the vehicle (not shown) to measure the direction of the vehicle when it is traveling, and generate a vehicle traveling direction angle. The global positioning device (GPS) 320 is installed on the vehicle to receive a plurality of satellite signals to generate a GPS coordinates data, a vehicle speed data (velocity data), and a head angle of the vehicle's current position Data (head angle) and a GPS quality indicator data. The vehicle speed measuring device 330 is installed on the vehicle to measure the driving speed of the vehicle to generate a velocity sig...

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Abstract

The invention relates to an automobile navigation system with correcting display and the method for correcting the display. The system first gets the currently displayed location and reads the corresponding road link, then gets the next location and selects a road link that is less than 25 cm away from the location, so as to generate the first set of road link. In the next, the direction signal generated by the gyrometer is taken as the next running direction angle of the automobile, and a road link with an angle difference less than 5 degree from the next running direction is selected from the first set of road link to generate the second set of road link. Then, the vertical distance between the next vehicle location and the second set of road link is calculated, and the road link with the shortest vertical distance is selected. Finally, the projected point on the road link of the next automobile location on the shortest vertical distance is set as the next correction position, and the symbol representing the automobile is displayed on the next display location corresponding to the next correction position.

Description

Technical field [0001] The invention relates to a vehicle navigation system and a display method thereof, in particular to a vehicle navigation system capable of displaying a corrected position of a vehicle symbol on a display screen and a correction display method thereof. Background technique [0002] FIG. 1 shows a conventional vehicle with a navigation system (Navigation) function. A global positioning device (GPS) 81 and a navigation device 82 are installed on the vehicle. The known GPS global positioning device 81 receives signals from multiple global positioning satellites 9 in space at any time, and calculates the current 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 current vehicle coordinates in a map data of the electronic map database 822, and then displays a symbol representing the vehicle on the display 83 . So that the driver can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02G01S5/00G01C21/26G01C21/20G01C21/36G01S19/40
Inventor 陈国荣李俊忠杨明文
Owner XINGYI SCI & TECH
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