Search International and National Patent Collections

1. (WO2015118818) NAVIGATION-MESSAGE-AUTHENTICATING POSITIONING DEVICE

Pub. No.:    WO/2015/118818    International Application No.:    PCT/JP2015/000250
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Thu Jan 22 00:59:59 CET 2015
IPC: G01S 19/21
G01S 19/05
G01S 19/24
Applicants: DENSO CORPORATION
株式会社デンソー
Inventors: KUMABE, Seigou
隈部 正剛
Title: NAVIGATION-MESSAGE-AUTHENTICATING POSITIONING DEVICE
Abstract:
This navigation-message-authenticating positioning device (200, 300) is provided with: a satellite receiver (230, 330) that receives a navigation message; an authentication information acquisition unit (S5); an authentication unit (S9-S11) that authenticates that a navigation message is normal; and a positioning unit (S42). The navigation-message-authenticating positioning device (200, 300) is provided with: a storage unit (220a, 330a) that stores satellite information and the authentication results; an acquisition unit (S24, S27) that acquires an artificial satellite; a consistency determination unit (S36, S36c) that determines whether or not a navigation message and a navigation message received after restarting are consistent; and a selection unit (S38). The positioning unit (S42) determines the position of the navigation-message-authenticating positioning device.