Title:
VEHICLE MONITOR
Document Type and Number:
WIPO Patent Application WO/1998/036337
Kind Code:
A1
Abstract:
The communication over the whole region of a wide working site can be performed without cost increase owing to the installation of auxiliary equipment, and mutual control of vehicles can be performed sufficiently with a light burden on a monitoring station and without sacrificing the safety. Further, when a fault occurs in transmission/reception equipment, the fault can be confirmed quickly and securely, and accordingly the abnormality can be dealt with quickly and properly. First transmission/reception means which transmit/receive at least command data between the monitoring station and a plurality of vehicles by a 1st communication system which enables wireless communication over the distances between the monitoring station and the vehicles are provided in the monitoring station and the vehicles respectively. Second transmission/reception means which transmit/receive position data which are measured by vehicle position measuring instruments between the vehicles by a 2nd communication system which enables wireless communication over the distances between the vehicles and enables faster data transmission/reception than the 1st communication system are provided in the vehicles respectively. The position data are transmitted between the vehicles by the 2nd transmission/reception devices to make the respective vehicles know the approach of other vehicles. Thus the mutual position relations between the vehicles can be monitored.
Inventors:
TOJIMA MASANORI (JP)
KAGEYAMA MASATO (JP)
KANEKO KIYOSHI (JP)
KAGEYAMA MASATO (JP)
KANEKO KIYOSHI (JP)
Application Number:
PCT/JP1998/000561
Publication Date:
August 20, 1998
Filing Date:
February 12, 1998
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
TOJIMA MASANORI (JP)
KAGEYAMA MASATO (JP)
KANEKO KIYOSHI (JP)
TOJIMA MASANORI (JP)
KAGEYAMA MASATO (JP)
KANEKO KIYOSHI (JP)
International Classes:
G05D1/00; E02F9/20; G01S19/14; G05D1/02; G08G1/123; (IPC1-7): G05D1/02
Foreign References:
| JPS63150709A | 1988-06-23 | |||
| JPS63150710A | 1988-06-23 |
Attorney, Agent or Firm:
Kimura, Takahisa (8-11 Minato 1-chom, Chuo-ku Tokyo, JP)
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