JPH03119499A - Fire sensor with self operation monitor function - Google Patents

Fire sensor with self operation monitor function

Info

Publication number
JPH03119499A
JPH03119499A JP25710989A JP25710989A JPH03119499A JP H03119499 A JPH03119499 A JP H03119499A JP 25710989 A JP25710989 A JP 25710989A JP 25710989 A JP25710989 A JP 25710989A JP H03119499 A JPH03119499 A JP H03119499A
Authority
JP
Japan
Prior art keywords
control circuit
circuit
condenser
reset signal
reset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP25710989A
Other languages
Japanese (ja)
Other versions
JP2804119B2 (en
Inventor
Shunichi Morita
Original Assignee
Nohmi Bosai Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nohmi Bosai Ltd filed Critical Nohmi Bosai Ltd
Priority to JP25710989A priority Critical patent/JP2804119B2/en
Publication of JPH03119499A publication Critical patent/JPH03119499A/en
Application granted granted Critical
Publication of JP2804119B2 publication Critical patent/JP2804119B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To realize an abnormal operation monitor function of a fire sensor with a low price and high reliability by giving a reset signal from a reset circuit by the supplied voltage from a condenser when a control circuit operates for a time exceeding the set time for executing a processing procedure because of noise, etc.
CONSTITUTION: A reset circuit 11, which outputs a reset signal to a control circuit circuit 1 and places the control 1 in a standby state when a feeder voltage is equal to or lower than a prescribed voltage, and a condenser 10 which is connected to the feeder, parallel to each internal circuit, and possesses a capacitance value which the control circuit in an operating state can execute power supply to each internal circuit for enough time to execute the set processing procedure, are provided. Also, a switching means 8, which is turned on when the control circuit 1 is in a standby state, and makes a power source execute power supply to the condenser 10, is provided. Thus, even when the control circuit 1 is abnormal, the control circuit 1 is recovered to a normal state by a reset signal after the passage of a certain time, and the reliability can be improved at a low price.
COPYRIGHT: (C)1991,JPO&Japio
JP25710989A 1989-10-03 1989-10-03 Fire detector with self-operation monitoring function Expired - Fee Related JP2804119B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25710989A JP2804119B2 (en) 1989-10-03 1989-10-03 Fire detector with self-operation monitoring function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25710989A JP2804119B2 (en) 1989-10-03 1989-10-03 Fire detector with self-operation monitoring function

Publications (2)

Publication Number Publication Date
JPH03119499A true JPH03119499A (en) 1991-05-21
JP2804119B2 JP2804119B2 (en) 1998-09-24

Family

ID=17301859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25710989A Expired - Fee Related JP2804119B2 (en) 1989-10-03 1989-10-03 Fire detector with self-operation monitoring function

Country Status (1)

Country Link
JP (1) JP2804119B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007154201A (en) * 2006-12-12 2007-06-21 Yuji Obara Decomposition treatment method and decomposition treatment apparatus for waste plastic material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007154201A (en) * 2006-12-12 2007-06-21 Yuji Obara Decomposition treatment method and decomposition treatment apparatus for waste plastic material

Also Published As

Publication number Publication date
JP2804119B2 (en) 1998-09-24

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Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees