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AU2019100408A4 - Autonomous Heat/fire detection and warning system for monitoring rural areas - Google Patents

Autonomous Heat/fire detection and warning system for monitoring rural areas Download PDF

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Publication number
AU2019100408A4
AU2019100408A4 AU2019100408A AU2019100408A AU2019100408A4 AU 2019100408 A4 AU2019100408 A4 AU 2019100408A4 AU 2019100408 A AU2019100408 A AU 2019100408A AU 2019100408 A AU2019100408 A AU 2019100408A AU 2019100408 A4 AU2019100408 A4 AU 2019100408A4
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AU
Australia
Prior art keywords
temperature measuring
infrared temperature
measuring sensor
sensors
infrared
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Ceased
Application number
AU2019100408A
Inventor
Jim Egoroff
Patrick Mcauliffe
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Individual
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Individual
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Priority to AU2019100408A priority Critical patent/AU2019100408A4/en
Application granted granted Critical
Publication of AU2019100408A4 publication Critical patent/AU2019100408A4/en
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Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/005—Fire alarms; Alarms responsive to explosion for forest fires, e.g. detecting fires spread over a large or outdoors area
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0271—Detection of area conflagration fires
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0806—Focusing or collimating elements, e.g. lenses or concave mirrors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
    • 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
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J2005/0077—Imaging
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G08B27/006—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations with transmission via telephone network
    • 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
    • G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computing Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

Title: Autonomous Heat/fire detection and warning system for bushfires Field: Fire Fighting Equipment Abstract: A heat and fire detection and warming system that monitors rural areas for smoke and thermal signatures for detecting bushfires. Mounted on suitable locations throughout rural areas, the detection units create an interlinked monitoring system that provides a continuous picture of any hazardous temperature anomalies or smoke signatures over the entire area.

Description

Title: Autonomous Heat/fire detection and warning system for monitoring rural areas
Field: Fire Fighting Equipment
Background:
[0001] The present invention relates to fire detection systems, and in particular to fire detection systems that use infrared sensors to measure the temperature of rural locations.
[0002] This invention further relates to a network of sensors that can be distributed through rural areas and will be able to monitor such areas for indications of fires.
[0003] This invention further relates to a system of establishing such a network of sensors and incorporates them into a smart monitoring system that would provide the earliest warning of any fires or ignition sources within the monitored area.
[0004] Such a system would also incorporate smoke and combustion products detection to augment the data collection.
Summary [0005] A fire detection sensor comprising an infrared temperature measuring sensor that is able to monitor the temperature of a remote location. Said sensor incorporates a focusing system that concentrates the incident radiation from said remote location onto the sensors, so that the sensor only reacts to the temperature of said location.
[0006] Said infrared sensor focusing system could be a mirror or lens or any suitable combination of mirrors and lenses.
2019100408 13 Apr 2019 [0007] Said infrared sensor and focusing system would be located within an enclosure to protect said sensors from the elements.
[0008] Said enclosure would also contain a signals processing and logic circuit that enables the received infrared signals to be analyzed to distinguish infrared radiation produced by a fire or ignition source from any other source of infrared radiation.
[0009] Said enclosure would also contain a communication system that will send data about the state of the monitored area to a central monitoring system. Said communication system may be based on the cellular telephone system, on microwave communication, or on any other suitable system.
[0010] Said enclosure would also contain a battery or other suitable power source to supply power to the infrared sensor, logic and communication systems.
[0011] Said enclosure would also contain a solar electrical generating unit such as photovoltaic cells that serves to recharge the battery during daylight hours.
[0012] Said enclosure may also contain a smoke detector to monitor the atmosphere of the area for combustion products.
[0013] Said self contained fire monitoring unit is mounted in suitable locations which can be located to monitor areas of bushland and rural areas by mounting them on posts, trees, rock faces and other suitable surfaces.
[0014] Said self contained fire monitoring unit may be mounted with a magnet that will attach to an iron or steel surface. More generally the self contained fire monitoring unit is mounted with a magnet that will attach to a plate, made from a suitable magnetic material, that is attached to a non-magnetic surface by means of adhesive, or any other suitable method.
2019100408 13 Apr 2019 [0015] Said magnetic plate may be placed on the surface by a remotely controlled system such as a drone. Said plate may be placed using an adhesive or any other suitable method, and once firmly attached the self contained fire monitoring unit may be attached to the plate using the magnetic attachment. Such a method enables remote mounting of the self contained fire monitoring unit to high and inaccessible locations.
[0016] The network of sensors linked by wireless communication will feed data into a central processing unit, whether such a central processing unit is incorporated within the self contained fire monitoring unit or within a separate location as appropriate.
[0017] Data from the various self contained fire monitoring units will be combined to produce a map of the monitored area, displaying hot spots and detected combustion signals if appropriate.
[0018] The network of sensors will be controlled by algorithms that combine multiple sensor outputs to avoid false alarms, such as those caused by the heat of the sun.
[0019] Ultraviolet detectors may be used in conjunction with infra read detectors to distinguish solar radiation from other sources of infrared radiation that would be more indicative of a fire or ignition source.
[0020] The combined processed data, representing the state of the entire monitored area, is used to determine if any alarm should be raised. In the event that any of the measured parameters exceed the preset thresholds the system will raise an alarm in the approved manner.
[0021] It is therefore an object of the present invention to provide a self contained fire monitoring unit infrared temperature measuring sensor network incorporating a central data
2019100408 13 Apr 2019 processing unit in which the data from the sensors is analyzed to create a real time map of the temperature of the monitored area.
[0022] It is also an object of the present invention to provide a self contained fire monitoring unit infrared temperature measuring sensor network incorporating a central data processing unit in which the data from smoke sensors is incorporated within the real time map of the monitored area.
[0023] It is also an object of the present invention to provide a self contained fire monitoring unit infrared temperature measuring sensor network incorporating battery recharging mechanisms such as solar cells mounted on said unit.
[0024] It is also an object of the present invention to provide a self contained fire monitoring unit infrared temperature measuring sensor network in which the sensors are emplaced throughout the monitored area on locations such as trees or poles, said units being placed in such locations through means such as remote controlled aircraft.
[0025] It is also an object of the present invention to provide a self contained fire monitoring unit infrared temperature measuring sensor network in which a responsible body will be notified of the malfunction of any sensor.
[0026] Other objects and features of the present invention will become apparent from the following detailed description taken in connection with the accompanying drawings which disclose one of the embodiments of the invention. It is to be understood, however, that the drawings are designed for the purposes of illustration only, and are not intended as a definition of the limits and scope of the invention.
[0027] In the drawings, wherein similar reference numerals denote similar elements throughout the several views:
2019100408 13 Apr 2019 [[0028] FIG. 1 is a pictorial view of the self contained fire monitoring unit infrared temperature measuring sensor .
[0029] FIG. 2 is a pictorial view of the self contained fire monitoring unit infrared temperature measuring sensor from the rear.
[0030] FIG. 3 is a pictorial view of the self contained fire monitoring unit infrared temperature measuring sensor from underneath.
[0031] Referring to the drawings, there is shown a system comprising a weather proof casing 1, within which is an infrared sensor 2, and coupled to a plurality of photovoltaic cells 3.
[0032] Within casing 1 is located a rechargeable battery or other suitable electrical storage device which is recharged by the photovoltaic cells 3 whenever lighting conditions are suitable. This electrical storage device provides electrical power to other electrical and electronic subsystems within the overall device.
[0033] Also within casing 1 is located an electronic control system and a means of wireless communication. The wireless communication subsystem may be a mobile telephone system using the existing local mobile telephone network. The wireless communication subsystem may also use any other suitable wireless communication system and protocol.
[0034] Also located on a suitable position on casing 1 is a mounting device 4 that serves to mount the self contained fire monitoring unit infrared temperature measuring sensor onto suitable locations and in a suitable orientation to allow the infrared sensor 2 to monitor an area of interest.
[0035] Also within casing 1 is located an smoke detection system, which monitors the ambient air for smoke and combustion products through a suitable port or grill 5.
2019100408 13 Apr 2019
Description of Embodiments:
[0036] In one embodiment of the invention, each self contained fire monitoring unit infrared temperature measuring sensor unit will be carefully positioned and aimed during installation to monitor a specific area so that the images from each self contained fire monitoring unit infrared temperature measuring sensor can be combined to produce a real-time map of heat sources across the entire monitored district.
[0037] In a preferred embodiment, multiple units of self contained fire monitoring unit infrared temperature measuring sensor are placed to have multiple viewpoints of the same areas within the overall monitored district. After installation the images received from each unit are tiled together in software to produce a seamless map of the total district with redundant viewpoints of many locations.
[0038] In one embodiment infra red sensor subsystem is also capable of sensing ultra violet light. This may be done through using a sensor that is sensitive to both frequency ranges, or having two sensors located adjacent and operating in parallel. By being able to image both the infrared and ultraviolet light sources the image processing is able to distinguish fires and ignition sources from sunlight and so minimize false alarms.
[0039] In a preferred embodiment, multiple self contained fire monitoring unit infrared temperature measuring sensor are linked to a common image processing unit that combines the image from each self contained fire monitoring unit infrared temperature measuring sensor to produce an overall map of the area and the heat sources therein, thus monitoring the area for fires and ignition sources.
[0040] In an alternative embodiment, multiple sensors within said common image processing unit is able to combine the images from each self contained fire monitoring unit infrared
2019100408 13 Apr 2019 temperature measuring sensor including images from multiple angles. By combining views from multiple angles the image processing unit is able to distinguish local heat sources from more distant heat sources such as sunlight and so avoid false alarms through this method.
[0041] In yet a further embodiment of the invention, the approach of mapping infra red images, ultra violet images, and multiple viewpoints from multiple angles are all combined to produce a time varying map of heat and ultra violet sources across the monitored area. By analyzing the locations of each source and how they vary over time the rate of both false positive and false negative errors will be reduced to a minimum.
[0042] In one embodiment the mounting device 4 consists of a permanent magnet of sufficient magnetic strength to hold the self contained fire monitoring unit infrared temperature measuring sensor in place when said magnet is placed against an iron or steel plate. In mounting the self contained fire monitoring unit infrared temperature measuring sensor, a suitable steel plate is first affixed to the mounting position, and then the self contained fire monitoring unit infrared temperature measuring sensor may be positioned to magnetically bond itself to the steel plate.
[0043] In a preferred embodiment, the steel plate may be positioned in place by hand, or via an aerial work platform, or a crane, or through a remote control drone, or any other suitable method. Affixing the steel plate to its location may be performed through screws, hand nails, power actuated nail guns, adhesives, rivets or any other suitable method.
[0044] In a preferred embodiment, once the steel plate is positioned, the self contained fire monitoring unit infrared temperature measuring sensor may be positioned onto the plate so that the mounting device 4 will mount onto the plate. The self contained fire monitoring unit infrared temperature measuring sensor may be positioned onto the plate by hand, or via an aerial work platform, or a crane, or through a remote control drone, or any other suitable method.
[0045] In an alternative embodiment, the mounting device 4 may be able to attach to a suitable mounting location without the use of a mounting plate.
[0046] While only some of the embodiments of the present invention has been shown and described, it will be obvious to those persons skilled in the art that many changes and modifications may be made thereunto without departing from the spirit and scope of the invention.
2019100408 13 Apr 2019

Claims (22)

  1. What is claimed is
    1. An infrared temperature measuring sensor that is mounted on to suitable locations to monitor a rural area for fires and temperatures likely to lead to fire danger.
  2. 2. An infrared temperature measuring sensor as described in Claim 1 that is mounted to a suitable location using any suitable method.
  3. 3. An infrared temperature measuring sensor as described in Claim 1 that is mounted with a magnet that will attach to an iron or steel surface.
  4. 4. An infrared temperature measuring sensor as described in Claim 3 that is mounted with a magnet that will attach to a plate, made from a suitable magnetic material, that is attached to a non-magnetic surface by means of adhesive, or any other suitable method.
  5. 5. An infrared temperature measuring sensor as described in Claim 4 in which the magnetic plate and the sensor are placed on the surface by a remotely controlled system such as a drone.
  6. 6. An infrared temperature measuring sensor as described in Claims 1 though 5 in which the temperature of said monitored area is sensed by infrared detectors that receive radiation from said area.
  7. 7. An infrared temperature measuring sensor as described in Claim 6 in which the radiation from said monitored area is focused on to the sensor by a lens from a flat plane over an arc.
  8. 8. An infrared temperature measuring sensor as described in Claim 7 in which the radiation from said monitored area is focused on to the sensor by a lens from a flat plane coincident to the surface to be monitored.
    2019100408 13 Apr 2019
  9. 9. An infrared temperature measuring sensor as described in Claim 8 in which a cylindrical fisheye lens is used to give the desired two dimensional field of view over a wide flat arc.
  10. 10. An infrared temperature measuring sensor as described in Claim 9 in which a cylindrical fisheye lens is used to give the desired two dimensional field of view over a wide flat arc coincident with the land surface being monitored.
  11. 11. An infrared temperature measuring sensor as described in Claims 1 through 10 in which a plurality of appropriate lens is used distributed over the perimeter of the housing to give the desired two dimensional field of view over the surface being monitored.
  12. 12. An infrared temperature measuring sensor as described in Claims 1 through 11 in which operating power is supplied by internal batteries.
  13. 13. An infrared temperature measuring sensor as described in Claims 1 through 12 in which operating power is supplied by internal batteries which are recharged by photovoltaic cells mounted on the exterior of the sensor housing, or on any other suitable location.
  14. 14. A network of infrared temperature measuring sensors as described in Claims 1 through 13 in which the data from the sensors are transmitted via a wireless connection to a central data processing unit.
  15. 15. An infrared temperature measuring sensor network incorporating a central data processing unit as described in Claim 14 in which the data from the sensors is analyzed to create a real time map of the temperature of the monitored area.
  16. 16. An infrared temperature measuring sensor network incorporating a central data processing unit as described in Claim 15 from which a fire alarm is generated if the temperature map of the monitored area reveals a location exceeding preset temperature limits.
  17. 17. An infrared temperature measuring sensor network incorporating a central data processing unit as described in Claim 15 from which an alarm is generated if the temperature map of the monitored area reveals a location in which the temperature is changing in a way that indicates imminent fire danger.
    2019100408 13 Apr 2019
  18. 18. An infrared temperature measuring sensor network incorporating a central data processing unit as described in Claim 16 and Claim 17 in which the combined data from all the linked infrared sensors is used to rule out false positive alarms, such as those caused by sensors reading the heat of the sun during the day.
  19. 19. An infrared temperature measuring sensor network incorporating a central data processing unit as described in Claims 16 and 17 in which the combined data from all the linked infrared sensors is used in conjunction with other data sources such as the time or the power output of the photovoltaic cells to rule out false positive alarms, such as those caused by sensors reading the heat of the sun during the day.
  20. 20. An infrared temperature measuring sensor network incorporating a central data processing unit as described in Claims 16 to 19 in which the resulting data map is sent to an external location for analysis and action, whether by an in-built connection to the mobile phone system or any other suitable method.
  21. 21. A network of infrared temperature measuring sensors as described in Claims 1 through 13 in which the data processing functions as described in Claims 14 to 20 are performed by distributed logic within the individual sensors, or by a remote processing unit, or by any other suitable method.
  22. 22. Infrared temperature measuring sensors as described in Claims 1 though 21 in which are also incorporated smoke sensors.
AU2019100408A 2019-04-13 2019-04-13 Autonomous Heat/fire detection and warning system for monitoring rural areas Ceased AU2019100408A4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2019100408A AU2019100408A4 (en) 2019-04-13 2019-04-13 Autonomous Heat/fire detection and warning system for monitoring rural areas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2019100408A AU2019100408A4 (en) 2019-04-13 2019-04-13 Autonomous Heat/fire detection and warning system for monitoring rural areas

Publications (1)

Publication Number Publication Date
AU2019100408A4 true AU2019100408A4 (en) 2019-05-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
AU2019100408A Ceased AU2019100408A4 (en) 2019-04-13 2019-04-13 Autonomous Heat/fire detection and warning system for monitoring rural areas

Country Status (1)

Country Link
AU (1) AU2019100408A4 (en)

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