Title:
MACHINE GUARD SYSTEM
Document Type and Number:
Japanese Patent JP3256003
Kind Code:
B2
Abstract:
PURPOSE: To improve the operability of a guard start and release command and to progress the check operation efficiency of a sensor without need to connect an operation device to an alarm device with respect to the machine guard system.
CONSTITUTION: A communication network 41 where plural telephone sets 431-43m installed in a guard area 30 are interconnected is connected to a alarm device 32. An identification section 39 identifies signal from the telephone sets 431 to 43m of the communication network 41 to command at least the start/release of guard to the alarm device 32.
Inventors:
Noritoshi Mori
Masayuki Majima
Masayuki Majima
Application Number:
JP33205292A
Publication Date:
February 12, 2002
Filing Date:
December 11, 1992
Export Citation:
Assignee:
Sogo Security Co., Ltd.
International Classes:
G08B25/08; H04M11/00; H04M11/04; H04Q3/58; (IPC1-7): H04M11/04; G08B25/08; H04Q3/58
Domestic Patent References:
| JP6260350A | ||||
| JP63220647A | ||||
| JP5130251A |
Attorney, Agent or Firm:
Tadahiko Ito
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