AU2008100802A4 - Detection of hydrocarbon gases - Google Patents

Detection of hydrocarbon gases Download PDF

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Publication number
AU2008100802A4
AU2008100802A4 AU2008100802A AU2008100802A AU2008100802A4 AU 2008100802 A4 AU2008100802 A4 AU 2008100802A4 AU 2008100802 A AU2008100802 A AU 2008100802A AU 2008100802 A AU2008100802 A AU 2008100802A AU 2008100802 A4 AU2008100802 A4 AU 2008100802A4
Authority
AU
Australia
Prior art keywords
controller
sensor
hydrocarbon
sensors
hydrocarbon gases
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.)
Ceased
Application number
AU2008100802A
Other versions
AU2008100802B4 (en
Inventor
Shaun Cronin
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.)
SEC ENG SYSTEMS Pty Ltd
Original Assignee
SEC ENG SYSTEMS Pty 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 SEC ENG SYSTEMS Pty Ltd filed Critical SEC ENG SYSTEMS Pty Ltd
Priority to AU2008100802A priority Critical patent/AU2008100802B4/en
Publication of AU2008100802A4 publication Critical patent/AU2008100802A4/en
Application granted granted Critical
Publication of AU2008100802B4 publication Critical patent/AU2008100802B4/en
Priority to AU2009287400A priority patent/AU2009287400A1/en
Priority to EP09809085.5A priority patent/EP2370959A4/en
Priority to PCT/AU2009/000633 priority patent/WO2010022432A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
    • E05G1/00—Safes or strong-rooms for valuables
    • E05G1/10—Safes or strong-rooms for valuables with alarm, signal or indicator
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/16—Combustible gas alarms
    • 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
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/181—Prevention or correction of operating errors due to failing power supply

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Emergency Alarm Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Description

AUSTRALIA
FB RICE CO Patent and Trade Mark Attorneys Patents Act 1990 SEC ENG SYSTEMS PTY LTD COMPLETE SPECIFICATION INNOVATION PATENT Invention Title: Detection of hydrocarbon gases The following statement is a full description of this invention including the best method of performing it known to us:- 00 2 02 0 Detection of hydrocarbon gases ;Field of the Invention This invention relates, generally, to the detection of hydrocarbon based gases
INO
Ni and, more particularly, to a system for detecting hydrocarbon based gases.
S 5 Background to the Invention 0 0O People wishing to gain access to valuables stored in an enclosed, confined volume often make use of explosives to damage a structure defining the confined 00 volume to an extent sufficient to be able to gain access to the volume. Examples of Ssuch structures include cabinets for automatic teller machines, safes, reinforced rooms r 10 in a building, etc.
The explosives in question are normally hydrocarbon based and emit hydrocarbon based gases. The detection of such gases may be useful in alerting authorities that an unlawful attempt to access the valuables is occurring enabling action to be taken. For the sake of brevity, the hydrocarbon based gases will be referred to below as "hydrocarbon gases".
Summary of the Invention According to the invention there is provided a system for detecting hydrocarbon gases, the system including a controller; a first hydrocarbon gas sensor arranged in proximity to the controller; and at least one further hydrocarbon gas sensor arranged remote from the controller, the sensors being individually programmable via the controller to generate an alarm condition when at least one predetermined parameter is detected by at least one of the sensors.
Preferably, the system includes two sensors. Each sensor may be programmable to detect at least one of a level of hydrocarbon gases in the vicinity of the sensor and a period of time for which a predetermined level of hydrocarbon gases is present in the vicinity of the sensor. Further, the controller may be configured to be responsive to one or more of the sensors.
The controller may be connectable to an alarm generating unit via a fail-safe switching arrangement. The fail-safe switching arrangement may comprise a relay associated with each sensor. Preferably, each relay is a normally closed relay so that, in the event, of a power failure or other adverse condition occurring, the relays open to generate an alarm signal.
701676 l.doc 00 3 The system may include an anti-tampering mechanism associated with each sensor for detecting tampering with the sensors.
Brief Description of Drawings An embodiment of the invention is now described by way of example with N, reference to the accompanying drawing in which:- 0 00 Fig. 1 shows a schematic block diagram of an embodiment of a system for detecting hydrocarbon gases.
00 Detailed Description of Exemplary Embodiment In Fig. 1, reference numeral 10 generally designates an embodiment of a system for detecting hydrocarbon gases. While the system 10 can be used to monitor any confined volume, the system 10 is intended particularly for use with automatic teller machines (ATMs). For ease of explanation, the system 10 will be described with reference to its application to ATMs.
The system 10 comprises a housing 12 housing a controller 14. The system further includes a first hydrocarbon gas sensor or sensor head 16 arranged in proximity to the controller 14. A second hydrocarbon gas sensor or sensor head 18 is arranged remote from the controller 14.
It will be appreciated that an ATM has a deposit chute in which envelopes containing currency or cheques to be deposited are receivable. In addition, the ATM has a money holding tray. The housing 12 housing the controller 14 and the first gas sensor head 16 is, for example, arranged in proximity to the tray 14. The sensor head 16 is therefore operable to detect the presence of hydrocarbon gases close to the tray.
Conversely, the sensor head 18 is arranged in the vicinity of an entrance opening to the deposit chute of the ATM and is spaced from the housing 12 housing the controller 14.
Conveniently, the sensor head 18 is connected to the controller 14 via a connector It will be appreciated that, if desired, the sensor head 16 can be mounted within the controller 14.
The sensor heads 16 and 18 are individually programmable by the controller 14 to generate an alarm condition when a predetermined parameter is detected by at least one of the sensor heads 16, 18.
Preferably, each sensor head 16, 18 is programmable to detect a preset level of hydrocarbon gas. Each sensor head 16, 18 is programmable in increments between 0 and 100% of hydrocarbon gas level. The level of hydrocarbon gas is referred to as LI for sensor head 16 and L2 for sensor head 18.
701676 1.doc 00 4 4 In addition, each sensor head 16, 18 is programmable so that the level of ;hydrocarbon gas present at the sensor head 16, 18 must be present for a predetermined period of time known at T1 for sensor head 16 and T2 for sensor head 18.
INO
N The controller 14 has a liquid crystal display for the indication of trigger levels for the sensor head 16, 18 and any setup levels and current display levels. In addition, Sthe system 10 includes a serial port 15 in communication with the controller 14. A 00 computer or other device can be plugged into the serial port 15 to indicate what the current settings of the controller are and also to provide an indication of a history of 0levels detected by the sensor heads 16 and 18 every 12 hours for a predetermined 00 number of events, for example, the preceding 100 events.
r By means of the controller 14, L1 and TI for sensor head 16 can be preset at desired values and, similarly, L2 and T2 can be set at the desired values for sensor head 18. In addition, the controller is operable in an OR-type manner or an AND-type manner. In other words, if the required level of hydrocarbon gas is detected by either sensor head 16, 18 for the preset period of time, the relevant sensor head 16, 18 may cause an alarm condition to be generated (OR-type operation). Conversely, the controller 14 can be programmed so both sensor heads 16 and 18 need to detect their required level of hydrocarbon gas for the preset period of time for each sensor head 16, 18 before an alarm condition is triggered (AND-type operation).
Each sensor head 16, 18 has a tamper indicating device, indicated schematically by a switch 22 associated with it so that, should an attempt be made to tamper with either sensor head 16, 18 for example, to attempt to remove either senor head 16, 18, an appropriate signal will be sent to the controller 14 which will cause an alarm condition to be generated.
The system 10 further includes a power supply 24 which is regulated and filtered to provide a reliable source of power for the controller 14 and the gas heads 16, 18.
The system 10 includes two relays 26, 28, one associated with each gas head 16, 18, respectively. The relays 26 and 28 are of either a normally open or normally closed type configuration and designed in a fail-safe type configuration. In other words, each relay 26, 28 is always energised and will drop to a non-powered state in the event of no power being supplied to the system 10 or upon the detection of an alarm condition by either or both of the sensor heads 16 and 18, dependent on the manner in which the controller 14 has been programmed. Thus, when an alarm condition is detected, the relays 26, 28 drop to a non-powered state causing an alarm condition to be generated.
701676 l.doc 00 c, It will further be appreciated that the alarm is generated at a location remote ;from the ATM in which the system 10 has been installed so that preventive action can be taken by the authorities if suspicious activity occurs at the ATM. This suspicious IND activity will be an attempt to blow the ATM open using explosives having hydrocarbon signatures resulting from the release of hydrocarbon gases.
It is therefore an advantage of the invention that a system 10 is provided which 00 enables hydrocarbon gases to be detected in confined volumes in a more accurate way 0 Sthan previously achieved. In particular, the use of at least two gas heads improves the 0accuracy of the system and inhibits the generation of false alarms. Also, because the 00 gas heads are spaced from each other, a greater area of detection can be achieved.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the scope of the invention as broadly described.
The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive.
701676_1.doc

Claims (4)

1. A system for detecting hydrocarbon gases, the system including a controller; a first hydrocarbon gas sensor arranged in proximity to the controller; and at least one further hydrocarbon gas sensor arranged remote from the controller, the sensors being individually programmable via the controller to generate an alarm 00 condition when at least one predetermined parameter is detected by at least one of the sensors. 00
2. The system of claim 1 in which each sensor is programmable to detect at least ,I one of a level of hydrocarbon gases in the vicinity of the sensor and a period of time for which a predetermined level of hydrocarbon gases is present in the vicinity of the sensor.
3. The system of claim 1 or claim 2 in which the controller is configured to be responsive to one or more of the sensors.
4. The system of any one of the preceding claims in which the controller is connectable to an alarm generating unit via a fail-safe switching arrangement. The system of any one of the preceding claims which includes an anti-tampering mechanism associated with each sensor for detecting tampering with the sensors. 701676_l.doc
AU2008100802A 2008-08-26 2008-08-26 Detection of hydrocarbon gases Ceased AU2008100802B4 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2008100802A AU2008100802B4 (en) 2008-08-26 2008-08-26 Detection of hydrocarbon gases
AU2009287400A AU2009287400A1 (en) 2008-08-26 2009-05-21 Detection of hydrocarbon gases
EP09809085.5A EP2370959A4 (en) 2008-08-26 2009-05-21 Detection of hydrocarbon gases
PCT/AU2009/000633 WO2010022432A1 (en) 2008-08-26 2009-05-21 Detection of hydrocarbon gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2008100802A AU2008100802B4 (en) 2008-08-26 2008-08-26 Detection of hydrocarbon gases

Publications (2)

Publication Number Publication Date
AU2008100802A4 true AU2008100802A4 (en) 2008-09-25
AU2008100802B4 AU2008100802B4 (en) 2009-01-22

Family

ID=39796946

Family Applications (2)

Application Number Title Priority Date Filing Date
AU2008100802A Ceased AU2008100802B4 (en) 2008-08-26 2008-08-26 Detection of hydrocarbon gases
AU2009287400A Abandoned AU2009287400A1 (en) 2008-08-26 2009-05-21 Detection of hydrocarbon gases

Family Applications After (1)

Application Number Title Priority Date Filing Date
AU2009287400A Abandoned AU2009287400A1 (en) 2008-08-26 2009-05-21 Detection of hydrocarbon gases

Country Status (3)

Country Link
EP (1) EP2370959A4 (en)
AU (2) AU2008100802B4 (en)
WO (1) WO2010022432A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112010002647T5 (en) 2009-01-23 2012-10-11 Chubb Fire Safety Ltd ATM security system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2567843A (en) * 2017-10-26 2019-05-01 Linde Ag A cash containing machine and a security kit for fitting into a cash containing machine

Family Cites Families (14)

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CH568627A5 (en) * 1974-07-15 1975-10-31 Cerberus Ag
US4088986A (en) * 1976-10-01 1978-05-09 Boucher Charles E Smoke, fire and gas alarm with remote sensing, back-up emergency power, and system self monitoring
US5218347A (en) * 1991-11-12 1993-06-08 Lindale Industries, Inc. Apparatus for detecting hazardous gases
US5422495A (en) * 1993-04-15 1995-06-06 Boston Advanced Technologies, Inc. Optical sensor having a floatation means for detecting fluids through refractive index measurement
US6031462A (en) * 1998-11-03 2000-02-29 Fike Corporation Rate of rise detector for use with explosion detection suppression equipment
EP1650545B1 (en) * 1999-06-17 2011-08-17 Smiths Detection Inc. Multiple sensing system, device and method
US6712101B1 (en) * 1999-11-17 2004-03-30 Gilbarco Inc. Hydrocarbon sensor diagnostic method
US6873256B2 (en) * 2002-06-21 2005-03-29 Dorothy Lemelson Intelligent building alarm
US7183915B2 (en) * 2004-08-05 2007-02-27 3Si Security Systems, Inc. Wireless ATM security system
AT414007B (en) * 2005-01-10 2006-08-15 Horst Kriechbaum Ges M B H METHOD AND ARRANGEMENT FOR PROTECTING MONEY OUTPUT AUTOMATES
US20070221863A1 (en) * 2005-12-12 2007-09-27 Zipf Edward C Emission detector for the remote detection of explosives and illegal drugs
DE102006049518A1 (en) * 2006-10-20 2008-04-24 Wincor Nixdorf International Gmbh Self-service device with monitoring device
EP1950715B1 (en) * 2006-12-20 2011-06-22 ASR Holding B.V. Method and device for securing a space against danger of gas explosion
DE202007001583U1 (en) * 2007-01-30 2007-05-31 Kultermann, Werner Security system for publicly accessible automatic teller machine, has gas warning system which comprises gas sensor arrangement with multi gas sensor or several mono gas sensors for detection of oxygen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112010002647T5 (en) 2009-01-23 2012-10-11 Chubb Fire Safety Ltd ATM security system

Also Published As

Publication number Publication date
WO2010022432A1 (en) 2010-03-04
EP2370959A4 (en) 2013-06-12
AU2009287400A1 (en) 2010-03-04
AU2008100802B4 (en) 2009-01-22
EP2370959A1 (en) 2011-10-05

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FGI Letters patent sealed or granted (innovation patent)
FF Certified innovation patent
MK22 Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry
NA Applications received for extensions of time, section 223

Free format text: AN APPLICATION TO EXTEND THE TIME FROM 26 AUG 2010 TO 26 DEC 2011 IN WHICH TO PAY A RENEWAL FEE HAS BEEN FILED .

NB Applications allowed - extensions of time section 223(2)

Free format text: THE TIME IN WHICH TO PAY A RENEWAL FEE HAS BEEN EXTENDED TO 26 DEC 2011.

MK22 Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry