EP2370959A1 - Detection of hydrocarbon gases - Google Patents
Detection of hydrocarbon gasesInfo
- Publication number
- EP2370959A1 EP2370959A1 EP09809085A EP09809085A EP2370959A1 EP 2370959 A1 EP2370959 A1 EP 2370959A1 EP 09809085 A EP09809085 A EP 09809085A EP 09809085 A EP09809085 A EP 09809085A EP 2370959 A1 EP2370959 A1 EP 2370959A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- controller
- counter
- sensors
- circuit board
- measure circuit
- 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- Withdrawn
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
Definitions
- This invention relates, generally, to the detection of hydrocarbon based gases and, more particularly, to a system for detecting hydrocarbon based gases.
- the invention is particularly, but not necessarily exclusively, for use in an automatic teller machine (ATM).
- ATM automatic teller machine
- hydrocarbon gases 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.
- hydrocarbon gases will be referred to below as "hydrocarbon gases”.
- a system for detecting hydrocarbon gases including a controller; a first hydrocarbon gas sensor mountable within an enclosed structure remote from an opening of the enclosed structure; and at least one further hydrocarbon gas sensor mountable within the enclosed structure in the vicinity of the opening of the enclosed structure, 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, the at least one parameter being one of a level of hydrocarbon gases in the vicinity of at least one of the sensors and a period of time for which a predetermined level of hydrocarbon gases is present in the vicinity of at least one of the sensors.
- the system includes two sensors.
- 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.
- 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.
- the system may include a counter-measure circuit board in communication with the controller.
- the counter-measure circuit board communicates serially with the controller.
- the counter-measure circuit board may include at least one actuator for actuating a counter-measure device, the counter-measure circuit board further including an energy generating unit for generating a high energy trigger signal for the at least one actuator.
- the counter-measure circuit board may include a switching unit for sending the trigger signal to the at least one actuator for inhibiting spurious triggering of the at least one actuator.
- the controller may communicate with the counter-measure circuit board via encrypted signals.
- an automatic teller machine having a housing with at least one opening being defined in the housing, the automatic teller machine including a controller arranged in the housing; a first hydrocarbon gas sensor mounted within the housing remote from the opening; and at least one further hydrocarbon gas sensor mounted within the housing in the vicinity of the opening of the enclosed structure, 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.
- Fig. 1 shows a schematic block diagram of an embodiment of a system for detecting hydrocarbon gases
- Fig. 2 shows a block diagram of a controller of the system of Fig. 1;
- Fig. 3 shows a simplified circuit layout of a gas sensor of the system
- Fig. 4 shows a block diagram of a counter-measure board of the system.
- 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.
- ATMs automatic teller machines
- the system 10 comprises a housing 12 housing a controller 14.
- the system 10 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.
- an ATM has a deposit chute in which envelopes containing currency or cheques to be deposited are receivable.
- 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.
- 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 20.
- 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.
- 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 Ll for sensor head 16 and L2 for sensor head 18.
- 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 as Tl for sensor head 16 and T2 for sensor head 18.
- the controller 14 has a liquid crystal display 32 (Fig. 2) for the indication of trigger levels for the sensor head 16, 18 and any setup levels and current display levels.
- the system 10 includes a serial port 15 in communication with the controller 14.
- a 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 levels detected by the sensor heads 16 and 18 every 12 hours for a predetermined number of events, for example, the preceding 100 events.
- Ll and Tl for sensor head 16 can be set at desired values and, similarly, L2 and T2 can be set at the desired values for sensor head 18.
- the controller is operable in an OR-type manner or an AND-type manner.
- the relevant sensor head 16, 18 may cause an alarm condition to be generated (OR-type operation).
- the controller 14 can be programmed so that 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 configuration and designed in a fail-safe type configuration.
- 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.
- the relays 26, 28 drop to a non-powered state causing an alarm condition to be generated.
- the alarm is generated at a location remote from the ATM in which the system 10 has been installed so that preventative action can be taken by the authorities if suspicious activity occurs at the ATM.
- This suspicious activity will be an attempt to blow the ATM open using explosives having hydrocarbon signatures resulting from the release of hydrocarbon gases.
- a block diagram of the controller 14 is shown in greater detail.
- the controller 14 includes a microprocessor 30 to which the display 32 is connected.
- the sensor heads 16, 18 are connected to the microprocessor 30 via an input port 34.
- An I/O control block 36 is connected to the microprocessor 30. Switches, buzzers, dipswitches, or the like (not shown), are connected to the microprocessor 30 via the I/O control block 36. As described above, the controller 14 includes a serial port 15 in communication with the microprocessor 30. This serial port 15 is an internal serial port. The controller
- the counter-measure circuit board 40 (Fig. 4) is connected.
- the counter-measure circuit board 40 will be described in greater detail below.
- the relays 26 and 28 are connected to the microprocessor 30 to generate the alarm conditions when the sensor heads 16, 18, detect an alarm condition, as described above.
- the controller 14 includes a third, optional relay 42.
- the relay 42 can be used for any desired purpose.
- the relay 42 can be used to trigger the ATM to shutdown, for dye release, or the like.
- the outputs could be logic outputs, voltage outputs, or the like.
- Each senor head 16, 18 includes a gas sensor 44, an adjustable power supply 46 and a power regulator 48.
- An enunciator in the form of a light emitting diode 50 is connected to the power regulator 48.
- each sensor head 16, 18 also includes tamper detection circuitry 22.
- the tamper detection circuitry 22 is a resistive matrix circuit.
- the board includes a connector 52 via which each sensor head 16, 18 is connected to the controller 14.
- the counter-measure circuit board 40 includes a microprocessor 54 having a serial port 56 which communicates with the serial port 38 of the controller 14.
- the counter-measure circuit board further includes an external input port 58. Desired inputs are connected to the microprocessor 54 via the input port 58.
- the counter-measure circuit board 40 can be connected to a door of the ATM or an alarm to prevent the counter-measure circuit board being triggered as a safety measure. For example, when the door of the ATM is open, the counter-measure circuit board 40 may be deactivated.
- the counter-measure circuit board 40 includes an energy generating unit 60.
- the energy generating unit 60 comprises a power supply and energy storage devices such as capacitors.
- the energy generating unit 60 comprises three large capacitors, for example, 2200 ⁇ F, to delivery a high energy trigger pulse to trigger actuators 62.
- a switching unit 64 is controlled by the microprocessor 54 and is connected to the energy generating unit 60.
- the switching unit 64 is a relay which is required to be energised before a trigger pulse is sent from energy generating unit 60 to the actuators 62.
- the actuators 62 are connected to the relay 64 via an output port 66.
- the counter-measure circuit board 40 is controlled by the controller 40 sending an actuating signal via the serial ports 38 and 56 to the microprocessor 54 of the counter-measure circuit board 40.
- the controller 14 sends a signal serially to the counter- measure circuit board 40 that gas has been sensed.
- the signal from the controller 14 is an encrypted signal.
- the signal is a complex, digital algorithm which is sent multiple times and the microprocessor 54 of the counter-measure circuit board 40 needs to verify receipt of the signal.
- the counter-measure circuit board 40 sends a notification to the controller 14 that it has received a signal and the controller 14 needs to send the signal again before the counter-measure board 40 commences energising of the energy generating unit 60.
- the microprocessor 54 activates the energy generating unit 60 causing the capacitors to charge.
- the capacitors remain in a charged condition and the microprocessor 54 needs to actively energise the relay 64 before the capacitors discharge and send a trigger pulse to the actuators 62.
- This dual stage operation inhibits spurious activation of the actuators 62.
- the actuators 62 are connected to counter-measure units (not shown), for example, containers of neutralising gas, which are activated to release the gas to counteract the effect of the hydrocarbon gases detected in the ATM. In so doing, destruction of the ATM may be inhibited.
- the counter-measure circuit board 40 is also operative to ensure that the actuators 62 are working.
- the microprocessor 54 generates a light constant current and voltage signal sent to the actuators 62. If either actuator 62 fails, a serial message is sent to the controller 14 to trigger the relay 42 that there is a problem. In addition, a message is displayed on the display 32 of the controller 14.
- all signals are emulated through the serial port 15 of the controller to a remote location, for example, an alarm panel, a modem, or the like.
- a system 10 which enables hydrocarbon gases to be detected in confined volumes in a more accurate way than previously achieved.
- the use of at least two gas heads improves the accuracy of the system and inhibits the generation of false alarms.
- the gas heads are spaced from each other, a greater area of detection can be achieved.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2008100802A AU2008100802B4 (en) | 2008-08-26 | 2008-08-26 | Detection of hydrocarbon gases |
PCT/AU2009/000633 WO2010022432A1 (en) | 2008-08-26 | 2009-05-21 | Detection of hydrocarbon gases |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2370959A1 true EP2370959A1 (en) | 2011-10-05 |
EP2370959A4 EP2370959A4 (en) | 2013-06-12 |
Family
ID=39796946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09809085.5A Withdrawn EP2370959A4 (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) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112010002647T5 (en) | 2009-01-23 | 2012-10-11 | Chubb Fire Safety Ltd | ATM security system |
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 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010458A (en) * | 1974-07-15 | 1977-03-01 | Cerberus Ag | Light gate system |
US6031462A (en) * | 1998-11-03 | 2000-02-29 | Fike Corporation | Rate of rise detector for use with explosion detection suppression equipment |
EP1679419A2 (en) * | 2005-01-10 | 2006-07-12 | Horst Kriechbaum Gesellschaft m.b.H. | Method and arrangement for protecting cash dispensers |
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 |
EP1914694A1 (en) * | 2006-10-20 | 2008-04-23 | Wincor Nixdorf International GmbH | Self-operated device with monitoring device |
EP1950715A2 (en) * | 2006-12-20 | 2008-07-30 | ASR Holding B.V. | Method and device for securing a space against danger of gas explosion |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
US20070221863A1 (en) * | 2005-12-12 | 2007-09-27 | Zipf Edward C | Emission detector for the remote detection of explosives and illegal drugs |
-
2008
- 2008-08-26 AU AU2008100802A patent/AU2008100802B4/en not_active Ceased
-
2009
- 2009-05-21 EP EP09809085.5A patent/EP2370959A4/en not_active Withdrawn
- 2009-05-21 AU AU2009287400A patent/AU2009287400A1/en not_active Abandoned
- 2009-05-21 WO PCT/AU2009/000633 patent/WO2010022432A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010458A (en) * | 1974-07-15 | 1977-03-01 | Cerberus Ag | Light gate system |
US6031462A (en) * | 1998-11-03 | 2000-02-29 | Fike Corporation | Rate of rise detector for use with explosion detection suppression equipment |
EP1679419A2 (en) * | 2005-01-10 | 2006-07-12 | Horst Kriechbaum Gesellschaft m.b.H. | Method and arrangement for protecting cash dispensers |
EP1914694A1 (en) * | 2006-10-20 | 2008-04-23 | Wincor Nixdorf International GmbH | Self-operated device with monitoring device |
EP1950715A2 (en) * | 2006-12-20 | 2008-07-30 | 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 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2010022432A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2009287400A1 (en) | 2010-03-04 |
WO2010022432A1 (en) | 2010-03-04 |
AU2008100802B4 (en) | 2009-01-22 |
EP2370959A4 (en) | 2013-06-12 |
AU2008100802A4 (en) | 2008-09-25 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20110714 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
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DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20130515 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: G07F 19/00 20060101ALI20130508BHEP Ipc: G08B 21/16 20060101ALI20130508BHEP Ipc: E05G 1/10 20060101ALI20130508BHEP Ipc: G08B 21/14 20060101ALI20130508BHEP Ipc: G08B 13/08 20060101ALI20130508BHEP Ipc: G08B 13/14 20060101AFI20130508BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20130904 |