Title:
SEPARATION TYPE SENSOR
Document Type and Number:
Japanese Patent JPS6252699
Kind Code:
A
Abstract:
A separation type detector includes at least one pair of transmission and reception units connected through a transmission line, detects environmental abnormality according to changes in pulse beams or ultrasonic waves transmitted from the transmission unit and received by the reception unit, and sends an abnormal signal to a central monitor through the transmission line. The transmission and reception units respectively include transmission circuits assigned with an identical address. The pair of transmission and reception units are synchronously operated in response to a command from a central monitor.
More Like This:
Inventors:
KIMURA TETSUO
Application Number:
JP19207785A
Publication Date:
March 07, 1987
Filing Date:
September 02, 1985
Export Citation:
Assignee:
NITTAN CO LTD
International Classes:
G08B17/10; G08B17/103; G08B26/00; (IPC1-7): G08B17/10
Domestic Patent References:
| JPS60119000A | 1985-06-26 |