JPH0221507U

JPH0221507U -

Info

Publication number: JPH0221507U
Application number: JP10068088U
Authority: JP
Priority date: 1988-07-29
Filing date: 1988-07-29
Publication date: 1990-02-13

Description

[Brief explanation of the drawing]

第１図は、この考案の車載用航法装置の一実施
例を示す概略構成図、第２図は、第１図に示した
中央処理装置の判断動作を説明するたのフローチ
ヤート、第３図は、第１図に示した各センサの出
力信号波形図、第４図は、従来の車載用航法装置
の一例を示す概略構成図、第５図は、地磁気セン
サの一例を示す概略構成図である。１１……車載用航法装置、１２……舵角センサ
、１３……地磁気センサ、１４……中央処理装置
。 FIG. 1 is a schematic configuration diagram showing an embodiment of the in-vehicle navigation system of this invention, FIG. 2 is a flowchart for explaining the judgment operation of the central processing unit shown in FIG. 1, and FIG. 1 is an output signal waveform diagram of each sensor shown in FIG. 1, FIG. 4 is a schematic configuration diagram showing an example of a conventional in-vehicle navigation device, and FIG. 5 is a schematic configuration diagram showing an example of a geomagnetic sensor. be. 11... Vehicle navigation device, 12... Rudder angle sensor, 13... Geomagnetic sensor, 14... Central processing unit.

Claims

[Scope of utility model registration request]

a steering angle sensor that detects the vehicle's direction from the steering angle; a geomagnetic sensor that detects the vehicle's direction based on geomagnetic field; and a geomagnetic sensor whose output time rate is within a predetermined range, Only when the output change width of the geomagnetic sensor is larger than the output change width, the output direction of the geomagnetic sensor is adopted with priority over the output direction of the steering angle sensor, and the central processing unit is used to judge the course of the vehicle. An on-vehicle navigation device equipped with.