GB2244831A - Control - Google Patents

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Publication number
GB2244831A
GB2244831A GB9011619A GB9011619A GB2244831A GB 2244831 A GB2244831 A GB 2244831A GB 9011619 A GB9011619 A GB 9011619A GB 9011619 A GB9011619 A GB 9011619A GB 2244831 A GB2244831 A GB 2244831A
Authority
GB
United Kingdom
Prior art keywords
code
control system
microprocessor
reset
translating
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Withdrawn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
GB9011619A
Other versions
GB9011619D0 (en
Inventor
David Armstrong
Nick Smith
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.)
TECHNISTORE Ltd
Original Assignee
TECHNISTORE 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
Application filed by TECHNISTORE Ltd filed Critical TECHNISTORE Ltd
Priority to GB9011619A priority Critical patent/GB2244831A/en
Publication of GB9011619D0 publication Critical patent/GB9011619D0/en
Publication of GB2244831A publication Critical patent/GB2244831A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/30—Individual registration on entry or exit not involving the use of a pass
    • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/33—Individual registration on entry or exit not involving the use of a pass in combination with an identity check by means of a password

Abstract

A reset system for use with an intruder alarm device comprises a reset panel 10 including a reset microprocessor (not shown) which panel 10 is connected to and is located adjacent a main control panel 11 of the alarm. Once the alarm device is activated, eg. due to hostile intrusion into the premises or due to a mistake by a user, or accidental triggering, it must be reset before it can be reused. The reset microprocessor generates a different five digit random number each time activation takes place and, in order to rouse the alarm device an anti-code, unique for each random number, must be entered into the reset microprocessor via a keypad 10b. The anti-code is generated remotely from the alarm device using portable computer 13. <IMAGE>

Description

IMPROVEMENTS IN OR RELATING TO CONTROL The present invention relates to a method of, and a control system for performing a control operation, and is concerned particularly although not exclusively with a method of and system for performing a control operation of an alarm system.
In a typical alarm system, such as an intruder alarm system for use in a building, when the alarm is activated e.g. by hostile intrusion into the premises or by a legitimate mistake on the part of the user, a signal will automatically be sent to a nearby police station or security guard. Commonly, one of a select group of persons known as key holders will then be required to attend the premises and deactivate the alarm with a special key.
Because of the possibility of "false alarms" occurring due to a fault in the alarm system, police force policy often requires that the alarm system can only be reset by an engineer. This means that in order for the alarm system to become operational again an engineer must attend the premises to reset the system. The purpose of this is to ensure that the engineer is made aware of the frequency of activation of the alarm system and can take steps to repair any suspected fault.
This reset operation is both costly in terms of the engineer's time and travelling expenses and also in terms of the amount of police time wasted waiting at the premises with a key holder until the engineer arrives.
An alternative prior arrangement involves the alarm system being remotely reset by passing a reset signal down a telephone line. This involves the additional expense of maintaining a permanent telephone line between the alarm device and a control station, which control station must monitor the alarm and reset when necessary.
According to one aspect of the present invention a control system comprises code generating means and translating means, the code generating means being arranged, in use, to generate a code when a device with which the system is associated is to be controlled, the translating means being capable of providing an anti-code which is related to the code of the code generating means which anti-code must be entered into the control system to enable a device with which the system is associated to be controlled. Accordingly, the present invention may provide a system for providing a control for a device remotely without requiring a permanent link, thereby reducing the cost of remotely resetting such a device.
The code generating means may comprise a microprocessor and the anti-code may be entered into the microprocessor to enable a device with which the system is associated to be controlled.
The microprocessor may generate a random code.
The translating means may comprise a second microprocessor which performs a mathematical operation on the code to provide the anti-code.
A key pad may be connected to the microprocessor, which key pad allows input of the anti-code into the microprocessor.
A digital display may be arranged to show the code produced by the code generating means.
The system may comprise the code generating means being located in the vicinity of a control panel of a device, and the translating means may be located remote from the device. The translating means may be accessible by remote communication, for instance by telephone.
The translating means and key pad may comprise a portable computer.
The control system may comprise a reset system.
The device may comprise a resettable device.
The resettable device may comprise an intruder alarm.
According to a second aspect of the present invention, a method of controlling a device comprises generating a code, translating the code into an anti-code, and then inputting the anti-code to enable the device to be controlled.
The code may comprise generating a random code by a microprocessor.
The method of controlling may comprise a method of resetting.
The method may include generating a random code after activation of a resettable device, translating the random code into an anti-code related to the random code and then inputting the anti-code to enable the resettable device to be reset.
The method of obtaining the anti-code may comprise inputting the code into a second microprocessor remote from the first microprocessor.
The method of resetting may comprise reading the code from a digital display, entering the code into the second microprocessor and obtaining an anti-code, then entering the anti-code into a key pad connected to the first microprocessor to enable the resettable device to be reused.
The first microprocessor may be connected to a digital communicator of the resettable device.
The method may comprise a method of resetting an alarm system.
The invention also includes a resettable device such as an alarm system which is arranged to be reset by a reset system substantially as herein described.
The invention also includes a resettable device such as an alarm system which is arranged to be reset by a method substantially as herein described.
The present invention may be carried into practice in various ways, but one embodiment will now be described by way of example and with reference to the acompanying diagrammatic drawing, in which: Figure 1 is a schematic diagram of an alarm-reset system according to one embodiment of the present invention.
A reset system for use with an intruder alarm device comprises a reset panel 10 including a reset microprocessor (not shown) which panel 10 is connected and is located adjacent to a main control panel 11 of the alarm.
Once the alarm device is activated, e.g. due to hostile intrusion into the premises or due to a mistake by a user, or accidental triggering, it must be reset before it can be re-used. The reset microprocessor generates a different five digit random number each time activation takes place and, in order to re-use the alarm device an anti-code, unique for each random number, must be entered into the reset microprocessor via a key pad 10b.
Once the correct anti-code has been entered into the key pad lOb, the microprocessor sends an enabling signal to the digital communicator 12 of the main control panel 10 to reset the alarm device. The anti-code is found by entering the random number into a handheld portable computer 13 which performs an algorithm on the random number to generate an anti-code which is unique for each random number.
It is necessary for a user to contact either the supplier of the alarm or a specified engineer, quoting the number on the display lOa every time the alarm is activated whereupon the engineer can obtain the anti-code using the portable computer 13 and notify the user of this anti-code to enable resetting of the alarm. This is particularly useful where police force policy requires that an engineer be notified before reset takes place.
Since an engineer must be notified each time an activation takes place the engineer or his company can monitor the frequency of activation and take steps to rectify any fault which may occur in the alarm system.
Only one portable computer need be used (by the engineer/company) to produce anti-codes for any number of different alarm installations. The codes are always randomly generated so any attempt to guess the anti-code is useless. The entire operation can be done in a telephone call between the user/police and an engineer and need only take a few minutes.
The reset panel 10 is wired into the 12 volt DC supply of the alarms control panel and is connected to the alarm output of the digital communicator 12.
In use, a relay output from the reset panel changes state when an alarm signal is received from the control panel. This equipment then remains in that state until the correct reset code is entered. Most control panels have the facility to force a "lock out" condition via terminals on the output block of the digital communicator 12. Once this occurs the unlock out" condition is effectively controlled via the reset panel 10.
In the case of control panels not having the "lock out" facility, the control panel may have a fault forced upon any non-deselectable zone of the alarm system or on a tamper circuit of the alarm system, by the relay in the reset panel thereby ensuring that the panel cannot be used until the correct code is entered.
The uses of the present invention need not be restricted to applications involving alarm systems. The method and apparatus described hereinbefore may be employed to control access to electrically operated doors, telephones, vending machines etc for example.
Thus, the present invention provides a method and apparatus for resetting a resettable device remotely, quickly and without the need for actual attendance of an engineer at the location of the device, although necessarily requiring an engineer or installation company to be informed of any activation before resetting takes place.

Claims (27)

1. A control system comprising code generating means and translating means, the code generating means being arranged, in use, to generate a code when a device with which the system is associated is to be controlled, the translating means being capable of providing an anti-code which is related to the code of the code generating means which anti-code must be entered into the control system to enable a device with which the system is associated to be controlled.
2. A control system according to claim 1 wherein the code generating means comprises a microprocessor.
3. A control system according to claim 2 wherein the first microprocessor is arranged to generate a random number which random number is the code.
4. A control system according to claim 2 or claim 3 wherein a first key pad is connected to the first microprocessor, which keypad allows input of the anti-code into the first microprocessor.
5. A control system according to any of the claims 1 to 4 wherein the translating means comprises a microprocessor.
6. A control system according to claim 5 wherein the microprocessor of the translating means is arranged to perform a mathematical operation on the code to provide the anti-code.
7. A control system according to any of the claims 1 to 6 comprising display means arranged to display the code produced by the code generating means.
8. A control system according to any of the claims 1 to 7 wherein the code generating means is located in the vicinity of a control panel of the device and the translating means is located remote from the device.
9. A control system according to any of the claims 1 to 8 wherein the translating means comprises a portable computer.
10. A control system according to any of the claims 1 to 9 comprising a reset system.
11. A control system according to claim 10 wherein the device comprises a resetable device.
12. A control system according to claim 11 wherein the resetable device comprises an intruder alarm.
13. A control system according to any of the claims 1 to 12 wherein the device comprises a door.
14. A control system according to claim 2 or any other claim when dependent on claim 2 wherein the microprocessor of the code-generating means is connected to a digital communicator of the device.
1. ,;
15. A control system substantially as herein described with reference to, and as shown in the accompanying drawing.
16. A method of controlling a device comprising generating a code, translating the code into an anti-code and then inputting the anti-code to enable the device to be controlled.
17. A method according to claim 16 comprising generating a random number, which random number is the code, by means of a first microprocessor.
18. A method according to claim 16 or claim 17 comprising a method of resetting a device.
19. A method according to claim 18 comprising generating a code after activation of a resetable device, translating the code into an anti-code related to the code and then inputting the anti-code to enable the resetable device to be reset.
20. A method according to any of the claims 16 to 19 comprising inputting the code into a second microprocessor, remote from the first microprocessor, to obtain the anticode.
21. A method according to claim 20 comprising reading the code from a digital display, enteringthe code into the second microprocessor, obtaining an anti-code and entering the anti-code into a keypad connected to the first microprocessor to enable the resetable device to be reset.
,
22. A method according to claim 18 or claim 19 comprising a method of resetting an alarm system.
23. A method as claimed in any of claims 16 to 22 comprising translating the code into an anti-code at a region remote from the device.
24. A method of controlling a device substantially as herein described with reference to and as shown the accompanying drawing.
25. A method of controlling a device according to any of claims 16 to 24 when used on a control system according to any of claims 1 to 15.
26. A device arranged to be controlled by a control system according to any of the claims 1 to 15.
27. A device arranged to be controlled by a method according to any of claims 16 to 25.
GB9011619A 1990-05-24 1990-05-24 Control Withdrawn GB2244831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9011619A GB2244831A (en) 1990-05-24 1990-05-24 Control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9011619A GB2244831A (en) 1990-05-24 1990-05-24 Control

Publications (2)

Publication Number Publication Date
GB9011619D0 GB9011619D0 (en) 1990-07-11
GB2244831A true GB2244831A (en) 1991-12-11

Family

ID=10676476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9011619A Withdrawn GB2244831A (en) 1990-05-24 1990-05-24 Control

Country Status (1)

Country Link
GB (1) GB2244831A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574219A2 (en) * 1992-06-10 1993-12-15 Racal-Datacom Limited Access control
GB2319646A (en) * 1996-11-12 1998-05-27 Sony Corp Resetting security code in electronic device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1256730A (en) * 1969-01-15 1971-12-15
GB2120434A (en) * 1982-04-22 1983-11-30 Enigma Logic Inc A security system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1256730A (en) * 1969-01-15 1971-12-15
GB2120434A (en) * 1982-04-22 1983-11-30 Enigma Logic Inc A security system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574219A2 (en) * 1992-06-10 1993-12-15 Racal-Datacom Limited Access control
GB2267769A (en) * 1992-06-10 1993-12-15 Racal Datacom Ltd Access control
US5323465A (en) * 1992-06-10 1994-06-21 Racal-Datacom Limited Access control
GB2267769B (en) * 1992-06-10 1995-08-16 Racal Datacom Ltd Access control
GB2319646A (en) * 1996-11-12 1998-05-27 Sony Corp Resetting security code in electronic device
GB2319646B (en) * 1996-11-12 1998-10-28 Sony Corp Electronic device having resettable security code and method for resetting security code
US6323752B1 (en) 1996-11-12 2001-11-27 Sony Corporation Electronic instrument having resettable security code and method for resetting security code

Also Published As

Publication number Publication date
GB9011619D0 (en) 1990-07-11

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)