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Navigation devices

A navigation device and speed limiting technology, applied in the directions of road network navigators, instruments, traffic control systems, etc., can solve the problems of rising accident rates, blockages, and hindering the passage of other vehicles, so as to improve safety and convenience, reduce burden effect

Active Publication Date: 2008-12-03
ALPINE ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, if a car with a speed of 60km / h is driving on a lane with a minimum speed of 80km / h, it will hinder the passage of other cars and cause congestion
Moreover, since the number of vehicles overtaking to avoid the 60km / h car increases, the accident rate also increases.

Method used

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Examples

Experimental program
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Embodiment Construction

[0049] The best embodiment of the present invention will be described in detail with reference to the drawings.

[0050] figure 1 is a block diagram showing the configuration of the vehicle electronic device according to the present embodiment. In the vehicle electronic device 1, the sensor unit 2, the bus communication control part 4, the external bus 3 connecting the sensor unit 2 and the bus communication control part 4, and the bus communication control part 4 and the navigation device 6, the meter display through the internal bus 5 Part 7, warning part 8, and engine control unit (ECU) are connected.

[0051] The sensor unit 2 includes a distance sensor that detects the speed and distance of the host vehicle, a gyro sensor that detects the orientation of the host vehicle, an acceleration sensor, a rotation sensor that detects a pulse signal corresponding to the number of revolutions of the engine, a fuel sensor that outputs the remaining amount of fuel, and an indicator. ...

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PUM

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Abstract

The invention provides a navigation device which guides the speed limit of each traffic lane to the user in advance when each traffic lane of the road is set with speed limit. The navigation device comprises a detecting unit for detecting the position of the vehicle; a road map display unit for displaying the road map (400) surround the detected position of the vehicle; an identification unit for identifying the road existed in the forward direction of the vehicle that is the speed limit object road set with the speed limit according to the detected position of the vehicle; a measuring unit for measuring the distance from the position of the vehicle to the speed limit object road; a speed limit information display unit for displaying the speed limit information (401) expressing the speed limit of each traffic lane on the road map when the distance measured by the measuring unit achieves to the desired value.

Description

technical field [0001] The present invention relates to a navigation device, and more particularly to a display method for displaying a speed limit set in each lane of a road. Background technique [0002] Navigation devices that search for a route to a destination and guide the route are being developed and used in vehicles, portable terminals, and the like. The navigation device calculates the driving position of the own vehicle, displays the mark of the own vehicle's position on the road map displayed on the monitor, and performs road guidance and the like. In addition, the most suitable route to the destination is searched, and the searched route is displayed on the display, and at the same time, the arrival time to the destination based on the searched route is also displayed. [0003] In order to alleviate chronic traffic congestion and improve convenience and safety, road repairs and expansion repairs are being carried out in cities, localities, expressways, and gene...

Claims

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Application Information

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IPC IPC(8): G01C21/26G01C21/34G01C21/36G08G1/0967
Inventor 东宪司中西陈中
Owner ALPINE ELECTRONICS INC
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