JPH0220116U - - Google Patents
Info
- Publication number
- JPH0220116U JPH0220116U JP9831088U JP9831088U JPH0220116U JP H0220116 U JPH0220116 U JP H0220116U JP 9831088 U JP9831088 U JP 9831088U JP 9831088 U JP9831088 U JP 9831088U JP H0220116 U JPH0220116 U JP H0220116U
- Authority
- JP
- Japan
- Prior art keywords
- geomagnetic
- offset value
- vehicle
- azimuth
- detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005415 magnetization Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000012935 Averaging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
Landscapes
- Measuring Magnetic Variables (AREA)
- Navigation (AREA)
Description
第１図は本考案のクレーム対応図、第２図は本
考案が適用された実施例装置の基本構成を示すブ
ロツク図、第３図はジヤイロセンサのドリフト特
性説明図、第４図は着磁補正アルゴリズムの説明
図、第５図は本考案の第１の実施例の処理手順を
示すフローチヤート、第６図は本考案の第２の実
施例の処理手順を示すフローチヤート、第７図は
本考案の第３の実施例の処理手順を示すフローチ
ヤートである。
１……地磁気センサ、２……ジヤイロセンサ、
３……車速センサ、４……Ａ／Ｄ変換器、５……
コントローラ。
Fig. 1 is a diagram corresponding to claims of the present invention, Fig. 2 is a block diagram showing the basic configuration of an embodiment device to which the present invention is applied, Fig. 3 is an explanatory diagram of drift characteristics of a gyro sensor, and Fig. 4 is a magnetization correction An explanatory diagram of the algorithm, FIG. 5 is a flowchart showing the processing procedure of the first embodiment of the invention, FIG. 6 is a flowchart showing the processing procedure of the second embodiment of the invention, and FIG. 7 is a flowchart showing the processing procedure of the second embodiment of the invention. It is a flowchart showing the processing procedure of the third embodiment of the invention. 1... Geomagnetic sensor, 2... Gyro sensor,
3...Vehicle speed sensor, 4...A/D converter, 5...
controller.
Claims (1)
絶対方位検出手段と、 ジヤイロセンサにより車両の相対方位変化量を
検出する相対方位変化量検出手段と、 を備える車両用着磁補正システムにおいて、 単位時間毎に検出されるジヤイロセンサのオフ
セツト値を記憶するオフセツト値記憶手段と、 上記地磁気センサの出力値に基づいて周囲の地
磁気環境の良否を判断する地磁気環境判断手段と
、 上記判断された地磁気環境が一定値以上の安定
磁場である場合、上記記憶されたオフセツト値を
平均化処理することによりオフセツト値の更新を
行なうオフセツト値更新手段と、 を備えることを特徴とする車両用着磁補正シス
テム。[Scope of Claim for Utility Model Registration] Magnetization correction for a vehicle, comprising: absolute azimuth detection means for detecting the absolute azimuth of the vehicle using a geomagnetic sensor; and relative azimuth change detection means for detecting the amount of change in relative azimuth of the vehicle using a gyro sensor. The system includes: an offset value storage means for storing an offset value of a gyro sensor detected every unit time; a geomagnetic environment determining means for determining whether the surrounding geomagnetic environment is good or bad based on the output value of the geomagnetic sensor; an offset value updating means for updating the offset value by averaging the stored offset values when the geomagnetic environment is a stable magnetic field of a certain value or more; correction system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9831088U JPH0220116U (en) | 1988-07-25 | 1988-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9831088U JPH0220116U (en) | 1988-07-25 | 1988-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0220116U true JPH0220116U (en) | 1990-02-09 |
Family
ID=31324459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9831088U Pending JPH0220116U (en) | 1988-07-25 | 1988-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0220116U (en) |
-
1988
- 1988-07-25 JP JP9831088U patent/JPH0220116U/ja active Pending
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