ATE101445T1 - PROCEDURE FOR ENERGY-SAVING OPERATION OF SECURITY DETECTORS IN A SECURITY DETECTION SYSTEM. - Google Patents

PROCEDURE FOR ENERGY-SAVING OPERATION OF SECURITY DETECTORS IN A SECURITY DETECTION SYSTEM.

Info

Publication number
ATE101445T1
ATE101445T1 AT89118339T AT89118339T ATE101445T1 AT E101445 T1 ATE101445 T1 AT E101445T1 AT 89118339 T AT89118339 T AT 89118339T AT 89118339 T AT89118339 T AT 89118339T AT E101445 T1 ATE101445 T1 AT E101445T1
Authority
AT
Austria
Prior art keywords
microprocessor
switched
voltage
detectors
line voltage
Prior art date
Application number
AT89118339T
Other languages
German (de)
Inventor
Helfried Dipl-Ing Lappe
Otfried Post
Peer Dr-Ing Thilo
Original Assignee
Siemens Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6364535&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE101445(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of ATE101445T1 publication Critical patent/ATE101445T1/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The system operating in accordance with the principle of chain synchronization, comprising a central station (Z) having several two-core primary signalling lines (ML), to which a plurality of detectors (Mn) are connected in the form of a chain which are regularly cyclically activated from the central station (Z) and are interrogated for their respective analog detector measurement value, in each case uses detectors (Mn) which exhibit a voltage measuring device (MU) which monitors the applied line voltage (UL), a subsequent logic circuit (VL) with associated sensor part (S), a subsequent control device (St), an energy accumulator (C) and a switching transistor (T). The logic circuit (VL) is essentially formed by a microprocessor which can be connected and disconnected. According to the invention, the microprocessor is switched into a current-saving standby condition and switched on again in dependence on particular switching criteria which are specific for the hazard signalling system, a required start-up time (tan) being ensured for the microprocessor. For example, the microprocessor is switched to the standby condition in dependence on a particular line voltage (disconnecting voltage UAB=UR) and switched on again with the presence of another predetermined line voltage (connecting voltage UAN=US) so that the detector is activated after a particular start-up time (tan=ts). <IMAGE>
AT89118339T 1988-10-06 1989-10-03 PROCEDURE FOR ENERGY-SAVING OPERATION OF SECURITY DETECTORS IN A SECURITY DETECTION SYSTEM. ATE101445T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3834044 1988-10-06
EP89118339A EP0362798B1 (en) 1988-10-06 1989-10-03 Method for the energy-saving operation of risk detectors in a risk detection arrangement

Publications (1)

Publication Number Publication Date
ATE101445T1 true ATE101445T1 (en) 1994-02-15

Family

ID=6364535

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89118339T ATE101445T1 (en) 1988-10-06 1989-10-03 PROCEDURE FOR ENERGY-SAVING OPERATION OF SECURITY DETECTORS IN A SECURITY DETECTION SYSTEM.

Country Status (3)

Country Link
EP (1) EP0362798B1 (en)
AT (1) ATE101445T1 (en)
DE (1) DE58906937D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59108262D1 (en) * 1990-12-18 1996-11-14 Siemens Ag Hazard detection system
US6941869B2 (en) 2000-11-09 2005-09-13 Orica Explosives Technology Pty Ltd Sensor for monitoring electronic detonation circuits

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131991B (en) * 1982-11-12 1986-05-29 Robert Philp Telemetry and like signaling systems
DE3313137A1 (en) * 1983-04-12 1984-10-18 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR CANCELING NOISE IN OPTICAL SMOKE DETECTORS
KR910008738B1 (en) * 1987-02-20 1991-10-19 닛본 덴기 가부시기가이샤 Portable radio apparatus having battery saved channel scanning function

Also Published As

Publication number Publication date
EP0362798B1 (en) 1994-02-09
EP0362798A2 (en) 1990-04-11
EP0362798A3 (en) 1991-01-16
DE58906937D1 (en) 1994-03-24

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Legal Events

Date Code Title Description
RZN Patent revoked