Navigation equipment for a moving vehicle

Details Navigation equipment for a moving vehicle Navigation equipment for a moving vehicle

1987-09-18

1989-04-04

Chin, Gary

Boots, shoes, and leggings

340990, 340995, 36457104, G06F 1550

Patent

active

048191752

ABSTRACT:
A navigation equipment for a moving vehicle which includes a magnetic field probe 1 and a travel distance meter 2 which supplies position values Xa, Ya using dead-reckoning navigation which can be checked with a street map. The street map is digitally represented in a plat memory 4 using a network 42 which has meshes comprising network elements 421. The network elements 421 uses a binary 1 which represents a street and in other positions utilize a binary 0. The addresses of the network elements 421 in the plat memory 4 are ordered according to an x-y coordinate system and are addressable with the position coordinates Xa and Ya. The correction stage 5 checks a position indication Xa, Ya for a street value 1 or a 0 (deviant value) and when k successive deviant values occur, they are successively shifted in direction until street values result. The resulting shift values are then added as a correction value to every position indication Xa, Ya afterwards.

REFERENCES:
patent: 4388608 (1983-06-01), Bernard
patent: 4550317 (1985-10-01), Moriyama et al.
patent: 4688176 (1987-08-01), Hirata
patent: 4689747 (1987-08-01), Kurose et al.
patent: 4737916 (1988-04-01), Ogawa et al.
Bosch Technische Berichte--1986 ISSN 0006-789X Band 8.

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