GB2271873A - Electronic burglar alarm system - Google Patents

Electronic burglar alarm system Download PDF

Info

Publication number
GB2271873A
GB2271873A GB9218626A GB9218626A GB2271873A GB 2271873 A GB2271873 A GB 2271873A GB 9218626 A GB9218626 A GB 9218626A GB 9218626 A GB9218626 A GB 9218626A GB 2271873 A GB2271873 A GB 2271873A
Authority
GB
United Kingdom
Prior art keywords
electronic
alarm system
counter
switch
timer
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
GB9218626A
Other versions
GB9218626D0 (en
GB2271873B (en
Inventor
Josef Petr Prokopius
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9218626A priority Critical patent/GB2271873B/en
Publication of GB9218626D0 publication Critical patent/GB9218626D0/en
Publication of GB2271873A publication Critical patent/GB2271873A/en
Application granted granted Critical
Publication of GB2271873B publication Critical patent/GB2271873B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/1663—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using seismic sensing means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • 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
    • G08B25/14—Central alarm receiver or annunciator arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

An electronic burglar alarm system using electronic sensors (ES1 - ES5) providing an electrical signal to a zone selection switch (SW1), to a signal processing unit (a) and (SM), to a counter (C1) with display (D1) and to a counter (C2) with a pre-settable switch (PSW3) triggered into operation by signal from said electronic sensors. The pre-settable switch (PSW3) provides electrical output signal when pre-set count of incoming pulses of electrical signal are equal with count on said counter (C2) within a pro-set time set by timer (T1) and provides an electrical output to a timer (T2) to trigger it into operation and through power switch (PSW1) turns on an alarm sounder (S1) for a pre-set time. Counters (C1) and (C3) with display (D1) and (D2) are providing information about the number of trigger signals and alarms when protected property is unattended. <IMAGE>

Description

ELECTRONIC BURGLAR ALARM SYSTEM This invention relates to electronic burglar alarm systems protecting @roperty such as buildings and vehicles.
Burglar alarms used today generally have an exit and entry delay built in and do not protect within this time period. Generally some damage is done before the alarm starts to operate. They do not provide information on security and alarm situation when unattended.
This invention introdutes a very sensitive burglar alarm system which has no delay in operation and can be individually preset to operate in different ways, depending sn users choice and application. It can be pre-set to operate after specific number of trigger signals within a specific time period before the alarm is set off to operate the sounder. Also it has two counters, first counting and displaying total number of trigger signals received and second counting and displaying total number of alarms during the unattended period, providing the user with useful information about security.Also it uses inexpensive electronic sensors which is very easy to attach to parts of the protected property and to connect. Thii alarm system can be in operation without risk: of being accidentally set off when property is being occupied and during the night A specific embodiment of the i-nvention will now be described by way of example with reference to the accompanying drawing in which: - Fig. 1. shows typical block diagram of the electronic burglar alarm system.
Disc 1 sure of the Invention:- An electronic burglar alarm system having as a means if detection at least one electronic sensor (S1 - S5) such as piezo electric material sensor being attached tci scime part of construction of protected property which provides an electrical output signal each time when is slightly deflected, said output electrical signal from said sensor being electronically processed by amplifier (A) and Smitt Trigger (SM) and each such said electrical signal triggering into operation at least one first electronic timer (T1), at least one first counter (C1) wit a visual display (D1) providing indication of tal incoming trigger signals and at least one second counter (C2), said second counter may be of @r@-settable type, both # of said counters may be of electronic cr electro-mechanical type, the said first and second counter advancing one step each time they receive said trigger signal, said second counter (C2) providing an electrical output to a pre-settable switch (PSW3) which may be of electronic or mechanical type, or part cif the said second counter, said pre-settable switch allowing to be set for specified count of trigger pulses within a specified period cif time for which said first electronic timer (T1) is pre-set, and providing an electrical output signal when preset number of trigger signals in pre-settable switch (PSW3) are equal with the received trigger signals counted by said second counter, ts at least one second electronic timer (T2) and to at least one third counter (C3) with a visual display (D2) which also may be of electronit or electromechanical type, said third counter (C3) advancing each time one step and providing a visual display of number of trigger signals it receives indicating total count of alarms, said second electronic timer (T2) after being triggered providing an electrical output tci at least one alarm sounder (S1) and to at least one visual means (L4) such as flushing beacon directly or through a first power switch (PSW1) which may be cif electronic cr electromechanical type, said first electronic switch (PSW1) ) providing the electrical output to said audible alarm sounder (51) and to said visual means (L4.) which are turned on indicating alarm condition. Said first and second electronic timer is pre-settable for certain period if time and may Lie of re-triggerable electronic or electromechanical type.The said second electronic timer may al so provide an electrical output to at least one second power switch (PSW2) which may be of electronic or electromechanical type for providing an auxiliary electrical output for additional equipment @@ said burglar alarm system, said first electronic switch (PSW1) being connected through at least one electrical conductor loop leading from a control box housing the control circuit to an en@losure (E) housing the said audible alarm sounder (S1) and said visual means (L4) as to provide reverse biasing to said first power switch (PSW1) in such a way, that if disconnected or broken it will switch on the said first power switch (PSW1) and al arm condition will be indicated by the sal d audible alarm sounder (S1) and the visual means (L4) and will be powered by said second back up battery (B2) only, continuously up to o di d i schar ge . Sai d enc l 1 sure (E) housing said audible alarm sounder (S1), visual means (L4), power switch (PSWl) and back up battery (B2) may be of transparent or translucent material and a visual message can be incorporated within the said enclosure and may be alternating.Also within said enclosure (E) may be incorporated at least one said electronic sensor (ES5) con@ected t@ the control circuit.
For gaining exit and entry condition the alarm system is disabled by operation if at least one third electronic timer (T3) which provides an electrical output to said first and second and third counter (C1,C2,C3) and to said second timer (T2) to disable them as to avoid their operation, said third electronic timer (T3) being triggered into operation by mechanical switch, lock-switch, coded mechanical or electronic or by switch with a remote transmitter (TR) or by coded radio signal and remote transmitter (TR), said third electronic timer t.T3) also providing electrical signal to a visual means (L3) and audible device (S2) which is turned on during the exit and entry situation providing indication on safe entry or exit.
The burglar alarm system is having a first back up battery (B1) to provide power for the control system situated closely the system box or within said box and a second back up battery (B2) situated within an enclosure housing said alarm sounder (S1) and said visual means (L4) indicating the alarm condition, said first and second back up batteries being constantly charged by a battery charger (CH).
The control circuit may be constructed from individual integrated circuits or ASIC integrated circuits or discrete components or it can be employed a microcomputer or microcontroller to provide the furrctians of the circuit Any of the functions of the said control circuit may be indicated by audible or visual means such as buzzer;; or lights Said second electronic timer (T2) may be also triggered into operation by additional alarm sensors (AD) of different kinds such as fire or other detectors cir switches Plurality of said electronic sensors (ES1 - ESn) may be attached to parts of building cr vehicle constructions such as doors, windows, shop windows, floors,, bonnets and boots by double sided adhesive tape and connected in parallel to the control circuit cr divided into ones and switched individually or totally by selector switch (SW1) into the control circuit.
Said counters (C1) and (C3) with displays (D1) and (D2) which are providing information on number cf trigger signals and alarms may display their count continuously or on demand.
The alarm system can be individually pre-set in variety cf ways for specific number of trigger signals within specific time period before the alarm condition is indicated by said pre-settable switch (PSW3) and said timer (TI) to suit various conditions.

Claims (18)

Claims.
1) An electronic burglar alarm system having as a means of detection of the intruder at least one electronic sensor, said sensor being attached to suitable part of structure in the possible entry path of the protected object, said electronic sensor providing an electrical output signal each time the said suitable part of structure is forced and the said electronic sensor slightly deflected and each such said electrical signal triggering into operation simultaneously at least one first electronic timer, at least one first counter with a first visual display and at least one second counter, said second counter may be of pre-settable type, the said first and second counter advancing one step each time they receive sai6' triycjer signal, said second counter providing an electrical output to a pre-settable switch which may be independent or a part of the said second counter, said pre-settable switch having the facilities to enable it to be predetermined to a- specified count and the said second counter receiving the said trigger pulses for a specified period of time predetermined by the said first electronic timer, said pre-settable switch providing an electrical output signal and switching into operation simultaneously a second timer and a third counter with a second visual display when the count of trigger pulses of said second counter is equal with predetermined count of said pre-settable switch, the said third counter advancing one count and the said second electronic timer being predetermined to be ON for a specific time period to provide an electrical output to at least one alarm means indicating the alarm condition.
2) An electronic burglar alarm system as claimed in Claim 1 where is employed as said electronic sensor a piezo electric or resistive sensor.
3) An electronic burglar alarm system as claimed in Claim 1 and 2 where the said electrical output signal from the said electronic sensor is processed by an amplifier and Smitt trigger.
4) An electronic burglar alarm system as claimed in any preceding Claim where said means of said first and second visual display is a digital or alphabetical display and where said first visual display indicates total number of trigger pulses received and said second visual display indicates total number of alarm period operations.
5) An electronic burglar alarm system as claimed in any preceding Claim, where said first, second and third counter are of electronic or electro-mechanical type.
6) An electronic burglar alarm system as claimed in any preceding Claim where functions of the said first and second counter are performed by one counter with a memory.
7) An electronic burglar alarm system as claimed in any preceding Claim, where said first timer is providing enable function at the start of timing period and reset function at the end of timing period to said second counter.
8) An electronic burglar alarm system as claimed in any preceding Claim, where said pre-settable switch is of electronic, electromechanical or mechanical type.
9) An electronic burglar alarm system as claimed in any preceding Claim, where the function of pre-settable switch is performed by said second counter having the pre-set facilities.
10) An electronic burglar alarm system as claimed in any preceding Claim, where said first and second timer are pre-settable timers equipped with means to provide electrical switching functions for a predetermined period of time when in operation and may be of re-triggerable type.
11) An electronic burglar alarm system as claimed in any preceding Claim, where said alarm means is indicated by a sounder and visual means such as flashing beacon housed in transparent or translucent enclosure displaying a worded message and the alarm means is switched directly by an electronic or electromechanical switch which may be independent or a part of the said second timer.
12) An electronic burglar alarm system as claimed in any preceding Claim, where additional power switches activated by said second timer are incorporated providing further output means.
13) An electronic burglar alarm system as claimed in any preceding Claim, where there is provided an electrical loop of two wires from a control box to a housing of the sounder providing a close loop for reverse biasing to said power switch and connected into the switching circuit in a way as to switch ON continuously the alarm means powered from back up battery situated in the enclosure of the alarm means if the said wire loop is broken until sdid back up battery is discharged.
14) An electronic burglar alarm system as claimed in any preceding Claim, where said electronic sensor connected into electronic control circuit are also attached to control and alarm means enclosures.
15) An electronic burglar alarm system as claimed in any preceding Claim, where the functions of the electronic circuit are performed by discrete components, or integrated circuits or ASIC, or by microcomputer or microcontroller.
16) An electronic burglar alarm system as claimed in any preceding Claim, which has control and detection circuits divided into several zones for integrating some of additional conventional detectors or switches into the alarm circuit and by means of a selector switch enables to select particular zone or all zones to suit to a particular situation and conditions.
17) An electronic burglar alarm system as claimed in any preceding Claim which has the facilities to individually pre-set said pre-settable switch and select any number of said trigger signal and time delays for said alarm system operation to suit individual conditions and situations.
18) An electronic intruder alarm system as claimed in any preceding Claim, which uses means of ENABLE of exit and entry provided by coded switches or remote control by a radio signal, infrared or ultrasonic means.
l9) An electronic intruder alarm system as claimed in any preceding Claim and as substantionally described on pages 1 to 4 and as illustrated on accompanying block diagram.
18) An electronic burglar alarm system as claimed in any preceding Claim, which uses means of ENABLE of exit and entry provided by coded switches or by a conventional remote control by a radio signal, infrared or ultrasonic.
19) An electronic burglar alarm system as claimed in any preceding Claim and as substantionally described elsewhere in this invention and as illustrated on an accompanying block diagram.
Amendments to the claims have been filed as follows 1) An electronic intruder alarm system having as a means of detection of the intruder at least one electronic sensor, the said sensor being attached to a suitable part of the structure in the possible entry path of the protected object, said electronic sensor being connected to an electronic control circuit, said electronic sensor providing an electrical output signal each time the said suitable part of the structure is deflected by a slight force, the said electronic sensor attached to such structure being also very slightly deflected, each such said electrical signal from said electronic sensor triggering into operation at least one first electronic timer, at least one first counter with a first visual display and at least one second counter, said second counter may be of pre-settable type, the said first and second counter advancing one step each time they receive said trigger signal, said second counter providing an electrical output to a pre-settable switch which may be electronic, electromechanical or mechanical type and independent or a part of the said second counter, said pre-settable switch having the facilities to enable it to be predetermined to a specified count and the said second counter receiving the said trigger pulses for a specified period of time predetermined by the said first electronic timer, said pre-settable switch providing an electrical output signal and switching into operation a second timer and a third counter with a second visual display when the count of trigger pulses of said second counter is equal to the predetermined count of said pre-settable switch, the said third counter advancing one count and the said second electronic timer being predetermined to be ON for a specific time period to provide an electrical output to at least one alarm means indicating the alarm condition.
2) An electronic intruder alarm system as claimed in Claim 1 where is employed as said electronic sensor a piezo electric or resistive sensor.
3) An electronic intruder alarm system as claimed in Claim l and 2 where the said electrical output signal from the said electronic sensor is processed by an amplifier and Schmitt trigger.
4) An electronic intruder alarm system as claimed in any preceding Claim where said means of said first and second visual display is a digital or alphabetical display and where said first visual display provides a visual message related to the total number of trigger pulses received and said second visual display provides a visual message related to the total number of alarm period operations.
5) An electronic intruder alarm system as claimed in any preceding Claim, where said first1 second and third counter are of electronic or electro-mechanical type.
6) An electronic intruder alarm system as claimed in any preceding Claim where functions of the said first and second counter are performed by one counter with a memory.
7) An electronic intruder alarm system as claimed in any preceding Claim, wheresaid first timer is providing enable function at the start of timing period and reset function at the end of timing period to said second counter.
8) An electronic intruder alarm system as claimed in any preceding Claim, where said pre-settable switch is of electronic or mechanical type.
9) An electronic intruder alarm system as claimed in any preceding Claim, where the function of pre-settable switch is performed by said second counter.
10) An electronic intruder alarm system as claimed in any preceding Claim, where said first and second timer are pre-settable timers equipped with means to provide electrical switching functions for a predetermined period of time when in operation and may be of re-triggerable type.
11) An electronic intruder alarm system as claimed in any preceding Claim, where said alarm means is indicated by a sounder and visual means such as flashing beacon housed in transparent or translucent enclosure displaying a worded message and the alarm means is switched directly by an electronic or electromechanical switch which may be independent or a part of the said second timer.
12) An electronic intruder alarm system as claimed in any preceding Claim, where additional power switches activated by said second timer are incorporated providing further output means.
13) An electronic intruder alarm system as claimed in any preceding Claim, where there is provides an electrical loop of two wires from a control box to a housing of the alarm means, the alarm means comprising said sounder and said visual message means, said electrical loop providing a closed loop for reverse biasing to said power switch, said power switch being connected into the switching circuit of said alarm means in a way as to switch ON continuously the alarm means powered from the second back up battery situated in the enclosure containing the alarm means if the said wire loop i5 broken.
14) An electronic intruder alarm system as claimed in any preceding Claim, where said electronic sensors connected into the electronic control circuit are also attached to control and alarm means enclosure.
15) An electronic intruder alarm system as claimed in any preceding Claim, where the functions of the electronic circuit are performed by discrete components, or integrated circuits or ASIC, or by microcomputer or microcontroller.
16) An electronic intruder alarm system as claimed in any preceding Claim, which is divided into several zones for integrating some of additional detectors or switches into the alarm circuit and by means of a selector switch enables selection of particular zones or all zones to suit particular situations and conditions.
17) An electronic intruder alarm system as claimed in any preceding Claim which has the facilities to individually pre-set said pre-settable switch and select any number of said trigger signals and time delays for said alarm system operation to suit individual conditions and situations.
GB9218626A 1992-09-03 1992-09-03 Electronic burglar alarm system Expired - Fee Related GB2271873B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9218626A GB2271873B (en) 1992-09-03 1992-09-03 Electronic burglar alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9218626A GB2271873B (en) 1992-09-03 1992-09-03 Electronic burglar alarm system

Publications (3)

Publication Number Publication Date
GB9218626D0 GB9218626D0 (en) 1992-10-21
GB2271873A true GB2271873A (en) 1994-04-27
GB2271873B GB2271873B (en) 1997-02-26

Family

ID=10721320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9218626A Expired - Fee Related GB2271873B (en) 1992-09-03 1992-09-03 Electronic burglar alarm system

Country Status (1)

Country Link
GB (1) GB2271873B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2300263B (en) * 1995-04-28 1999-10-27 Josef Petr Prokopius Piezo electric detection system for security devices

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1237109A (en) * 1968-12-17 1971-06-30 Shorrock Dev Discriminating amplifier for high frequency detection devices
GB1443702A (en) * 1972-08-30 1976-07-21 Granley Products London Ltd Alarm systems
GB2027242A (en) * 1978-07-31 1980-02-13 Notecalm Ltd Improvements in or relating to alarm systems
US4633234A (en) * 1982-09-20 1986-12-30 Audio Sentry Manufacturing, Inc. Sonic detector having digital sampling circuit
GB2179481A (en) * 1985-08-20 1987-03-04 Rentokil Ltd Method and apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618062A (en) * 1969-04-02 1971-11-02 American District Telegraph Co Vault protection system
CH594943A5 (en) * 1976-09-09 1978-01-31 Spirig Ernst
GB8607877D0 (en) * 1986-04-01 1986-05-08 Wild G Vibration sensor unit
GB8819487D0 (en) * 1988-08-16 1988-09-21 Pennwalt Piezo Film Ltd Sensing breakage of glass

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1237109A (en) * 1968-12-17 1971-06-30 Shorrock Dev Discriminating amplifier for high frequency detection devices
GB1443702A (en) * 1972-08-30 1976-07-21 Granley Products London Ltd Alarm systems
GB2027242A (en) * 1978-07-31 1980-02-13 Notecalm Ltd Improvements in or relating to alarm systems
US4633234A (en) * 1982-09-20 1986-12-30 Audio Sentry Manufacturing, Inc. Sonic detector having digital sampling circuit
GB2179481A (en) * 1985-08-20 1987-03-04 Rentokil Ltd Method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2300263B (en) * 1995-04-28 1999-10-27 Josef Petr Prokopius Piezo electric detection system for security devices

Also Published As

Publication number Publication date
GB9218626D0 (en) 1992-10-21
GB2271873B (en) 1997-02-26

Similar Documents

Publication Publication Date Title
US5144283A (en) Energy efficient alarm system and regulative central control unit
US4347590A (en) Area surveillance system
US5019802A (en) Intrusion detection apparatus
US3634846A (en) Intrusion and fire detection system
US5790019A (en) Emergency alarm system
ES499600A0 (en) SECURITY INSTALLATION FOR REMOTE SURVEILLANCE AND ALARM-MA AGAINST THEFT
ES8608089A1 (en) Control and surveillance system for emergency exits.
CA2114889A1 (en) Plug-in Ground Fault Monitor for a Circuit Breaker
EP0773520A4 (en) Burglar alarm apparatus and radio receiver
CA2298744A1 (en) Multi-station dangerous condition alarm system incorporating alarm and chirp origination feature
US4803482A (en) Exit control and surveillance system
US4540977A (en) Surveillance apparatus
US4150369A (en) Intrusion alarm system
GB2271873A (en) Electronic burglar alarm system
GB1595788A (en) Warning systems
US5847647A (en) Micro movable alarm
WO2007014835A1 (en) Video surveillance device for dwellings and environments at risk
WO1982001612A1 (en) Alarm system
GB2300263A (en) Piezoelectric intruder detection system
WO1995008165A1 (en) Security camera
RU2081454C1 (en) Security alarm device
RU9540U1 (en) FIRE AND ALARM SYSTEM
AU702175B2 (en) A monitoring system
RU2081455C1 (en) Device for protection of objects against unauthorized access
GB2266801A (en) Intrusion detection and alarm system

Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19970901

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000903