Title:
RADAR VIGILANCE-ALARM SYSTEM
Document Type and Number:
WIPO Patent Application WO/1992/022828
Kind Code:
A1
Abstract:
A radar vigilance-alarm system wherein operational modes can be set automatically. When a vigilance range is set within a radar coverage and no target exists within the vigilance range, a target intrusion alarm mode is set. On the contrary, when a vigilance range is set and a target exists within the vigilance range, then, a target leaving alarm mode is automatically set. In a target intrusion alarm mode, an alarm is given when a target intrudes into the vigilance range; and, in a target leaving alarm mode, an alarm is given when the target leaves the vigilance range. With the above-described arrangement, a two-stage operation including setting of a vigilance range and setting of an alarm mode can be dispensed with, so that erroneous mode setting can be eliminated and surveillance as intended by an operator can be performed.
Inventors:
KIYA YOSHIYUKI (JP)
ARIDOME KOICHI (JP)
YOSHIHARA TAKASHI (JP)
TANIGAKI HIDETOSHI (JP)
ARIDOME KOICHI (JP)
YOSHIHARA TAKASHI (JP)
TANIGAKI HIDETOSHI (JP)
Application Number:
PCT/JP1992/000738
Publication Date:
December 23, 1992
Filing Date:
June 10, 1992
Export Citation:
Assignee:
FURUNO ELECTRIC CO (JP)
International Classes:
G01S13/93; G01S7/12; G01S13/04; (IPC1-7): G01S13/93
Foreign References:
| JPH01201178A | 1989-08-14 | |||
| JPH02290577A | 1990-11-30 | |||
| JPS60161882A | 1985-08-23 |
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