FR2347729A1 - Antitheft sound alarm system with neutralising circuit - uses pushbutton keys to control excitation of relays for neutralising alarm - Google Patents

Antitheft sound alarm system with neutralising circuit - uses pushbutton keys to control excitation of relays for neutralising alarm

Info

Publication number
FR2347729A1
FR2347729A1 FR7610490A FR7610490A FR2347729A1 FR 2347729 A1 FR2347729 A1 FR 2347729A1 FR 7610490 A FR7610490 A FR 7610490A FR 7610490 A FR7610490 A FR 7610490A FR 2347729 A1 FR2347729 A1 FR 2347729A1
Authority
FR
France
Prior art keywords
alarm
circuit
neutralising
relay
relays
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.)
Withdrawn
Application number
FR7610490A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE PROTECTION SA
Original Assignee
BAE PROTECTION SA
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 BAE PROTECTION SA filed Critical BAE PROTECTION SA
Priority to FR7610490A priority Critical patent/FR2347729A1/en
Publication of FR2347729A1 publication Critical patent/FR2347729A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/1003—Alarm systems characterised by arm or disarm features
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/046—Monitoring of the detection circuits prevention of tampering with detection circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
    • G08B29/08—Signalling of tampering with the line circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R2025/1013—Alarm systems characterised by the type of warning signal, e.g. visual, audible

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The round alarm uptem has an alarm whose the electrical supply is controlled by a relay. This relay is energised via a normally open circuit. This circuit is closed by any one of a number of detectors. A timing circuit delays the actuation of the round alarm when a detector is triggered. This delay enables the legitimate user of the uptem to neutralise it by interrupting the supply to the alarm. Neutralisation is achieved by pressing out a predetermined combination of a keyboard (T1-T6) certain of the hep are classed as active and are contractors which are connected in series into a relay circuit. The last hey (T6) in the combination controls a relay (L3) whose contact interrupts the supply circuit to the round alarm.
FR7610490A 1976-04-09 1976-04-09 Antitheft sound alarm system with neutralising circuit - uses pushbutton keys to control excitation of relays for neutralising alarm Withdrawn FR2347729A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7610490A FR2347729A1 (en) 1976-04-09 1976-04-09 Antitheft sound alarm system with neutralising circuit - uses pushbutton keys to control excitation of relays for neutralising alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7610490A FR2347729A1 (en) 1976-04-09 1976-04-09 Antitheft sound alarm system with neutralising circuit - uses pushbutton keys to control excitation of relays for neutralising alarm

Publications (1)

Publication Number Publication Date
FR2347729A1 true FR2347729A1 (en) 1977-11-04

Family

ID=9171645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7610490A Withdrawn FR2347729A1 (en) 1976-04-09 1976-04-09 Antitheft sound alarm system with neutralising circuit - uses pushbutton keys to control excitation of relays for neutralising alarm

Country Status (1)

Country Link
FR (1) FR2347729A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218338A (en) * 1992-02-10 1993-06-08 Chang Tsu Yung Coded anti-theft system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218338A (en) * 1992-02-10 1993-06-08 Chang Tsu Yung Coded anti-theft system

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Legal Events

Date Code Title Description
ST Notification of lapse