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GB2145860A - Security systems - Google Patents

Security systems Download PDF

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Publication number
GB2145860A
GB2145860A GB08418041A GB8418041A GB2145860A GB 2145860 A GB2145860 A GB 2145860A GB 08418041 A GB08418041 A GB 08418041A GB 8418041 A GB8418041 A GB 8418041A GB 2145860 A GB2145860 A GB 2145860A
Authority
GB
United Kingdom
Prior art keywords
alarm system
lock
door
arming
transmitter
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
GB08418041A
Other versions
GB2145860B (en
GB8418041D0 (en
Inventor
Peter Jupp
Lionel Tye
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.)
Reed International Ltd
Original Assignee
Reed International 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
Priority claimed from GB838319259A external-priority patent/GB8319259D0/en
Application filed by Reed International Ltd filed Critical Reed International Ltd
Priority to GB08418041A priority Critical patent/GB2145860B/en
Publication of GB8418041D0 publication Critical patent/GB8418041D0/en
Publication of GB2145860A publication Critical patent/GB2145860A/en
Application granted granted Critical
Publication of GB2145860B publication Critical patent/GB2145860B/en
Expired legal-status Critical Current

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
    • G08B25/008—Alarm setting and unsetting, i.e. arming or disarming of the security system
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lock And Its Accessories (AREA)
  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)

Abstract

An alarm system comprises at least one sensor for detecting unauthorised movement, an indicating device, a control system for controlling operations of the indicating device in response to operation of the sensor, and an alarm device located remote from the control system and responsive to operation of a door lock for causing a transmitter to transmit a control signal in digital or analogue form to the control system which in turn includes a receiver responsive to the control signal for arming the alarm system. <IMAGE>

Description

SPECIFICATION Security systems The present invention relates to security systems and more particularly to an arrangement for setting or arming the security system.
Security systems are already well known and particularly for domestic-type security systems there exists the problem of arming the circuit in such a way that the alarm is not in advertently triggered when there is an authorised entry into or exit from the protected premises. Conventionally, this is achieved by building in a delay circuit to the channel of the alarm system which includes the conventional entry and/or exit door whereby after the alarm is armed the door can be opened and/or closed within a predetermined time window without triggering the alarm. This is inconvenient in many practical situations and often results in the alarm system not being used or at least not being used as often as it should be.
It is an object of the present invention to provide apparatus for arming an alarm system which will be simple to use and thus encourage full and effective use of the alarm system.
The present invention provides an arrangement for arming an alarm system comprising means responsive to the operation of a lock of, for example, a door for producing a signal to cause a transmitter to emit a control signal to arm the alarm system.
Advantageously, when the door is locked the transmitter emits a first control signal to arm the alarm system and when the door is unlocked the transmitter will emit a further control signal to disable the alarm system.
Preferably, means for indicating tampering with the lock may also be provided.
Features and advantages of the present invention will become apparent from the following description of an embodiment thereof given by way of example with rference to the accompanying drawings which shows a block diagram of the proposed arrangement.
An alarm system is represented in the drawing by a block 10 and will include all the usual features of a conventional alarm system.
The difference provided by the present invention is that the arming system for the alarm system 10 is either replaced or has added to it an arrangement which is responsive to the locking and/or unlocking of a door of the premises protected by the alarm system.
The door lock is represented by the block 11 and the lock is provided with a detector 1 2 which detects the locking and/or unlocking of the lock 11 in any convenient manner and by any convenient means depending on the type of lock fitted to the door. The output from the detector 1 2 is fed to an encoding circuit 14 which generates a signal indicative of the operation of the detector 1 2 and feeds the encoded signal to a transmitter circuit 1 5 for transmission to a receiver circuit 1 6 located remote from the door lock 11 and transmitter 1 5. The signal received by the receiver circuit 1 6 is then decoded in a decoding circuit 1 7 and used to control the arming of the alarm system 10.The detector may be a read switch or a magnetic sensing device or any other suitable arrangement.
It is preferred that the signal transmitted by the transmitter circuit 1 5 is a digital signal although it could be an analogue signal in which case the frequency, for example, would be indicative of whether the door lock 11 had been locked or unlocked.
Advantageously the detector 12, the encoder circuit 1 4 and the transmitter circuit 1 5 are all housed in one part of the door lock 11 and are battery powered. It is expected that such an arrangement would have a battery life in excess of 1 year if a conventional dry cell battery were used. However, if a rechargeable cell was provided which could be recharged using a light sensitive array then the battery life could be almost infinite Although not shown, the door lock could be provided with means for sensing tampering with the lock which means could be arranged to cause the transmission of an alarm signal to the alarm system 10. It is conceived that an appropriately positioned strain gauge could detect an attempt to force the lock open and a reed switch could also be used either additionally or alternatively.
It is also conceived that the conventional box installed outside the premises could be provided with a visual indicator showing when the alarm system is armed so that the house owner can be reassured after locking the door that the alarm system has been properly armed.
1. An alarm system comprising at least one sensor for detecting unauthorised movement, an indicating device, a control system for controlling operation of the indicating device in response to operation of the sensor, and means for arming the alarm system, wherein the arming means is located remote from the control system and includes a transmitter for transmitting a control signal to the control system, the control system including a receiver responsive to the control signal for arming the alarm system.
2. An alarm system according to claim 1, wherein the arming means is fitted adjacent a lock and includes a detector for detecting operation of the door lock to cause the transmitter to transmit a control signal.
3. An alarm system according to claim 2, wherein the transmitter is arranged to transmit a first control signal representing locking of the lock and a second, different control signal representing unlocking of the lock.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Security systems The present invention relates to security systems and more particularly to an arrangement for setting or arming the security system. Security systems are already well known and particularly for domestic-type security systems there exists the problem of arming the circuit in such a way that the alarm is not in advertently triggered when there is an authorised entry into or exit from the protected premises. Conventionally, this is achieved by building in a delay circuit to the channel of the alarm system which includes the conventional entry and/or exit door whereby after the alarm is armed the door can be opened and/or closed within a predetermined time window without triggering the alarm. This is inconvenient in many practical situations and often results in the alarm system not being used or at least not being used as often as it should be. It is an object of the present invention to provide apparatus for arming an alarm system which will be simple to use and thus encourage full and effective use of the alarm system. The present invention provides an arrangement for arming an alarm system comprising means responsive to the operation of a lock of, for example, a door for producing a signal to cause a transmitter to emit a control signal to arm the alarm system. Advantageously, when the door is locked the transmitter emits a first control signal to arm the alarm system and when the door is unlocked the transmitter will emit a further control signal to disable the alarm system. Preferably, means for indicating tampering with the lock may also be provided. Features and advantages of the present invention will become apparent from the following description of an embodiment thereof given by way of example with rference to the accompanying drawings which shows a block diagram of the proposed arrangement. An alarm system is represented in the drawing by a block 10 and will include all the usual features of a conventional alarm system. The difference provided by the present invention is that the arming system for the alarm system 10 is either replaced or has added to it an arrangement which is responsive to the locking and/or unlocking of a door of the premises protected by the alarm system. The door lock is represented by the block 11 and the lock is provided with a detector 1 2 which detects the locking and/or unlocking of the lock 11 in any convenient manner and by any convenient means depending on the type of lock fitted to the door. The output from the detector 1 2 is fed to an encoding circuit 14 which generates a signal indicative of the operation of the detector 1 2 and feeds the encoded signal to a transmitter circuit 1 5 for transmission to a receiver circuit 1 6 located remote from the door lock 11 and transmitter 1 5. The signal received by the receiver circuit 1 6 is then decoded in a decoding circuit 1 7 and used to control the arming of the alarm system 10.The detector may be a read switch or a magnetic sensing device or any other suitable arrangement. It is preferred that the signal transmitted by the transmitter circuit 1 5 is a digital signal although it could be an analogue signal in which case the frequency, for example, would be indicative of whether the door lock 11 had been locked or unlocked. Advantageously the detector 12, the encoder circuit 1 4 and the transmitter circuit 1 5 are all housed in one part of the door lock 11 and are battery powered. It is expected that such an arrangement would have a battery life in excess of 1 year if a conventional dry cell battery were used. However, if a rechargeable cell was provided which could be recharged using a light sensitive array then the battery life could be almost infinite Although not shown, the door lock could be provided with means for sensing tampering with the lock which means could be arranged to cause the transmission of an alarm signal to the alarm system 10. It is conceived that an appropriately positioned strain gauge could detect an attempt to force the lock open and a reed switch could also be used either additionally or alternatively. It is also conceived that the conventional box installed outside the premises could be provided with a visual indicator showing when the alarm system is armed so that the house owner can be reassured after locking the door that the alarm system has been properly armed. CLAIMS
1. An alarm system comprising at least one sensor for detecting unauthorised movement, an indicating device, a control system for controlling operation of the indicating device in response to operation of the sensor, and means for arming the alarm system, wherein the arming means is located remote from the control system and includes a transmitter for transmitting a control signal to the control system, the control system including a receiver responsive to the control signal for arming the alarm system.
2. An alarm system according to claim 1, wherein the arming means is fitted adjacent a lock and includes a detector for detecting operation of the door lock to cause the transmitter to transmit a control signal.
3. An alarm system according to claim 2, wherein the transmitter is arranged to transmit a first control signal representing locking of the lock and a second, different control signal representing unlocking of the lock.
4. An alarm system according to claim 2, wherein the lock is provided with means for sensing tampering with the lock.
5. An alarm system according to claim 1, wherein the arming means includes a power source.
6. An alarm system according to claim 5, wherein the power source is a battery.
7. An alarm system according to claim 6, wherein the battery is rechargeable and a light sensitive array is provided for recharging the battery.
GB08418041A 1983-07-15 1984-07-16 Security systems Expired GB2145860B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08418041A GB2145860B (en) 1983-07-15 1984-07-16 Security systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838319259A GB8319259D0 (en) 1983-07-15 1983-07-15 Security systems
GB08418041A GB2145860B (en) 1983-07-15 1984-07-16 Security systems

Publications (3)

Publication Number Publication Date
GB8418041D0 GB8418041D0 (en) 1984-08-22
GB2145860A true GB2145860A (en) 1985-04-03
GB2145860B GB2145860B (en) 1986-09-10

Family

ID=26286614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08418041A Expired GB2145860B (en) 1983-07-15 1984-07-16 Security systems

Country Status (1)

Country Link
GB (1) GB2145860B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218341A1 (en) * 1985-08-22 1987-04-15 Philip Young Alarm for a blind
FR2597639A1 (en) * 1986-04-18 1987-10-23 Blanchet Pierre Anti-break-in alarm device
EP0245101A3 (en) * 1986-05-07 1989-04-26 John Vernon Hodgkinson An alarm device
GB2226906A (en) * 1989-01-05 1990-07-11 Hwang Shih Ming Remote control for arming and disarming an alarm system
GB2228120A (en) * 1989-02-11 1990-08-15 Nigel Stafford Mark Day Intruder alarm system disarmed by radio signal
DE4339318C1 (en) * 1993-11-18 1995-05-04 Grundig Emv Device for arming a radio alarm system
WO1997015906A1 (en) * 1995-10-25 1997-05-01 Stein Helga Electromechanical switchgear, in particular an alarm system
FR2792024A1 (en) * 1999-04-08 2000-10-13 Bernard Huguet House entry security protection unit having active unit and command activation mechanism and access using coded key/distance transmission and entry release opening mechanism separate.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1013751A (en) * 1963-07-09 1965-12-22 Mawdsley S Ltd Improvements in or relating to protective systems
GB1108437A (en) * 1965-04-28 1968-04-03 Gen Alarm Corp Alarm lock
GB1559209A (en) * 1975-11-07 1980-01-16 Tacussel M Method and installation for the remote control of a premises-watch radar apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1013751A (en) * 1963-07-09 1965-12-22 Mawdsley S Ltd Improvements in or relating to protective systems
GB1108437A (en) * 1965-04-28 1968-04-03 Gen Alarm Corp Alarm lock
GB1559209A (en) * 1975-11-07 1980-01-16 Tacussel M Method and installation for the remote control of a premises-watch radar apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218341A1 (en) * 1985-08-22 1987-04-15 Philip Young Alarm for a blind
FR2597639A1 (en) * 1986-04-18 1987-10-23 Blanchet Pierre Anti-break-in alarm device
EP0245101A3 (en) * 1986-05-07 1989-04-26 John Vernon Hodgkinson An alarm device
GB2226906A (en) * 1989-01-05 1990-07-11 Hwang Shih Ming Remote control for arming and disarming an alarm system
GB2228120A (en) * 1989-02-11 1990-08-15 Nigel Stafford Mark Day Intruder alarm system disarmed by radio signal
DE4339318C1 (en) * 1993-11-18 1995-05-04 Grundig Emv Device for arming a radio alarm system
WO1997015906A1 (en) * 1995-10-25 1997-05-01 Stein Helga Electromechanical switchgear, in particular an alarm system
FR2792024A1 (en) * 1999-04-08 2000-10-13 Bernard Huguet House entry security protection unit having active unit and command activation mechanism and access using coded key/distance transmission and entry release opening mechanism separate.

Also Published As

Publication number Publication date
GB2145860B (en) 1986-09-10
GB8418041D0 (en) 1984-08-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960716