Title:
システム及びプログラム等
Document Type and Number:
Japanese Patent JP7260149
Kind Code:
B2
Abstract:
To provide a system that is superior to the conventional system such as the system and the like capable of identifying a time without requiring a manual input of information by users, under a situation where information cannot be directly acquired from any of a time server and a reception unit of a satellite positioning system in the system using a time.SOLUTION: A system 901 comprises: a drive recorder 1 that is mounted to each of a plurality of vehicles; a time recorder 2 that transmits time information to the drive recorder 1; a time server 3 that transmits the time information to the time recorder 2; and a data server 4 that stores variety of information such as attendance information and the like the drive recorder 2 generates. The drive recorder 1 is configured to receive time information indicative of a current time from the time recorder 2 by wireless communication, for example, every time a prescribed tim goes by. The drive recorder 1 includes an internal time piece, and is configured to calibrate a time the internal time piece counts, using the time information received from the time recorder 2.SELECTED DRAWING: Figure 1
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Inventors:
Tomoaki Ogawa
Shigeru Koike
Kobayashi Norsen
Kami Michihiro
Shimizu Yuki
Shigeru Koike
Kobayashi Norsen
Kami Michihiro
Shimizu Yuki
Application Number:
JP2019056778A
Publication Date:
April 18, 2023
Filing Date:
March 25, 2019
Export Citation:
Assignee:
Jupiter Corporation
International Classes:
G04R20/00; G04G5/00; G04G21/00; G04R20/26; G07C1/00; G07C5/00
Domestic Patent References:
| JP2011257849A | ||||
| JP2007011805A | ||||
| JP2014112054A | ||||
| JP7284173A | ||||
| JP2012117869A | ||||
| JP2016197771A | ||||
| JP2013167597A | ||||
| JP2003344572A | ||||
| JP2018128273A |
Foreign References:
| WO2019031531A1 |
Attorney, Agent or Firm:
Asahi Patent Office