Title:
TRANSMITTER SYSTEM
Document Type and Number:
Japanese Patent JP3190733
Kind Code:
B2
Abstract:
PURPOSE: To transmit the detection of an abnormal state to a monitor room side by lowering the value of a transmission signal to the abnormality criterion when the abnormal state such as the abnormality of a pressure is detected, even at the time of using a transmitter to which the various kinds of functions are added.
CONSTITUTION: The value of a current signal outputted from a transmitter 2 is monitored by a CPU 17 provided at the transmitter 2, and whether or not it is the abnormal state is discriminated. Then, when the abnormal state of the value of the current signal is discriminated, the power source of an A circuit 15 being the object of a power saving among the A circuit 15 and a B circuit 16 provided in the transmitter 2 is interrupted by using analog switch 18, and the value of the current signal outputted from the transmitter 2 is descended to the abnormality criterion of the system.
Inventors:
Hidenori Kosaka
Application Number:
JP19712692A
Publication Date:
July 23, 2001
Filing Date:
July 23, 1992
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G08C19/02; G08C25/00; H04B3/54; (IPC1-7): H04B3/54; G08C19/02; G08C25/00
Domestic Patent References:
| JP1185140A |
Attorney, Agent or Firm:
Hidekazu Miyoshi (1 outside)