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FI102118B1 - Self-programming alarm system - Google Patents

Self-programming alarm system

Info

Publication number
FI102118B1
FI102118B1 FI900321A FI900321A FI102118B1 FI 102118 B1 FI102118 B1 FI 102118B1 FI 900321 A FI900321 A FI 900321A FI 900321 A FI900321 A FI 900321A FI 102118 B1 FI102118 B1 FI 102118B1
Authority
FI
Finland
Prior art keywords
self
output signal
coded output
unit
central unit
Prior art date
Application number
FI900321A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI900321A0 (en
FI102118B (en
Inventor
Jan-Erik Larsson
Original Assignee
Caretech Trading Ab
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 Caretech Trading Ab filed Critical Caretech Trading Ab
Publication of FI900321A0 publication Critical patent/FI900321A0/en
Application granted granted Critical
Publication of FI102118B publication Critical patent/FI102118B/en
Publication of FI102118B1 publication Critical patent/FI102118B1/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)

Abstract

An alarm system comprises at least one trip unit 1 and a central unit 2. The central unit is self-programmable from the respective trip unit by being temporarily placed in programming mode P2. A coded output signal emitted by the trip unit is inputted into the CPU 24 of the central unit for storage in an EEPROM 25 connected thereto. In the normal operating mode N2 of the central unit, a coded output signal received from any one trip unit is compared with all the codes previously stored by self-programming in the EEPROM. If agreement is then found between a received coded output signal and any stored code, then the CPU relays the coded output signal as an alarm signal L. <IMAGE>
FI900321A 1989-01-20 1990-01-19 Self-programming alarm system FI102118B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8900212A SE463741B (en) 1989-01-20 1989-01-20 ALARM SYSTEM INCLUDING AT LEAST ONE TRIGGING UNIT AND CENTRAL UNIT
SE8900212 1989-01-20

Publications (3)

Publication Number Publication Date
FI900321A0 FI900321A0 (en) 1990-01-19
FI102118B FI102118B (en) 1998-10-15
FI102118B1 true FI102118B1 (en) 1998-10-15

Family

ID=20374817

Family Applications (1)

Application Number Title Priority Date Filing Date
FI900321A FI102118B1 (en) 1989-01-20 1990-01-19 Self-programming alarm system

Country Status (3)

Country Link
DK (1) DK172435B1 (en)
FI (1) FI102118B1 (en)
SE (1) SE463741B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69712145T2 (en) * 1996-02-08 2002-12-12 Koninklijke Philips Electronics N.V., Eindhoven INITIALIZATION OF A WIRELESS SECURITY SYSTEM

Also Published As

Publication number Publication date
SE8900212L (en) 1990-07-21
DK5790A (en) 1990-07-21
DK5790D0 (en) 1990-01-09
DK172435B1 (en) 1998-07-06
SE463741B (en) 1991-01-14
FI900321A0 (en) 1990-01-19
SE8900212D0 (en) 1989-01-20
FI102118B (en) 1998-10-15

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: CARETECH TRADING AB