WO2003076765A1 - Safety system - Google Patents
Safety system Download PDFInfo
- Publication number
- WO2003076765A1 WO2003076765A1 PCT/IB2002/003870 IB0203870W WO03076765A1 WO 2003076765 A1 WO2003076765 A1 WO 2003076765A1 IB 0203870 W IB0203870 W IB 0203870W WO 03076765 A1 WO03076765 A1 WO 03076765A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- safety system
- event
- sensor
- signal
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 15
- 231100000252 nontoxic Toxicity 0.000 claims abstract description 6
- 230000003000 nontoxic effect Effects 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 76
- 206010044565 Tremor Diseases 0.000 claims description 8
- 241000207199 Citrus Species 0.000 claims description 7
- 235000020971 citrus fruits Nutrition 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 239000003205 fragrance Substances 0.000 claims 1
- 239000000779 smoke Substances 0.000 description 11
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 7
- 238000005065 mining Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000008673 vomiting Effects 0.000 description 3
- 206010028813 Nausea Diseases 0.000 description 2
- 206010047700 Vomiting Diseases 0.000 description 2
- 230000004438 eyesight Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008693 nausea Effects 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010011878 Deafness Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 210000004916 vomit Anatomy 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- 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
Definitions
- This invention relates to a safety system, in particular but not limited to, an underground mine safety system.
- miners are exposed to noxious and flammable gases such as methane or carbon monoxide that could lead to injury or death of the miners. It is desirable that miners be warned as soon as possible about the presence of such gases.
- stench gas warning system
- This system uses an extremely unpleasant gas to warn miners of imminent danger.
- the particular gas is unpleasant to the point of being nauseating.
- the stench gas is introduced into the main ventilation system of the mine from where it spreads through the entire mine.
- Another disadvantage is that the warning effect of the stench gas system is dependent on the flow of air through the ventilation system of the mine. It is possible, and in some instances most likely, that for example smoke from a fire will reach miners at a workplace before the stench gas will reach them. This makes the stench gas warning system ineffective in such a case. The same is true for other toxic gases. c In the event of a small fire in a remote part of a mine the release of stench gas into the ventilation system will cause the entire mine, or at least a substantial part of it, to be evacuated. This results in unnecessary loss of productive time if the fire can be handled efficiently enough to not warrant closure of the entire mine.
- a safety system comprising at least one event sensor, a source of pressurized non-toxic and non-flammable alarm gas, and control means to release the alarm gas in response to a signal received from the event sensor in response to the occurrence of a predeterminable event.
- the event sensor is also provided for the event sensor to be remotely located from the source of pressurized gas and for the signal sent from the event sensor to be distinctive of the event that triggered the event sensor.
- the event sensor to comprise at least one of a gas sensor, an earth timer sensor; and a temperature sensor, and for the signal from the event sensor to be indicative of the type of event.
- the invention further provides for the event sensor to include at least one gas sensor, preferably multiple gas sensors, and for the signal sent from the at least one gas sensor to be indicative of the type of gas sensed.
- the signal is further provided for the signal to be indicative of respectively a gas concentration, a magnitude of an earth tremor sensed, or a temperature reading of the event sensor environment.
- the invention also provides for the event sensor to require sensing of an event for a predeterminable time, alternatively for a predeterminable level of the event to be sensed, further alternatively for a predeterminable level of the event to be sensed for a predeterminable time, before a signal is sent to the control means.
- the source of alarm gas to be a pressurized gas container, for the control means to include an electrically actuated valve in the container, and for the control means to include an electricity supply for the valve.
- the alarm gas is further provided for the alarm gas to be scented nitrogen gas, and for the gas to be citrus scented.
- the alarm gas is further provided for the alarm gas to be released into the intake airflow system of a mine and for the alarm gas to be carried by the airflow to a working face of the mine.
- the event sensor to transmit the signal to the control means by means of a fixed time connection, alternatively wireless communication including radio waves, microwaves and infrared waves.
- the invention also provides for the safety system to include a siren and an alarm light and for the control means to activate the siren and alarm light in addition to releasing the alarm gas in response to the signal received from the event sensor.
- the invention also provides for a signal from the event sensor to be receivable by a remote control station and for the remote control station to be located on surface level.
- the invention also provides for a method of operating a safety system including the steps of: a. Installing at least one event sensor in a first predeterminable area; b. Installing a source of pressurized non-toxic and non-flammable alarm gas in a second predeterminable area; c. Transmitting a signal from the event sensor to control means associated with the pressurised gas container upon sensing of a predeterminable event in the first area; d. Releasing alarm gas into the second area upon reception of the signal.
- the first area to be a mine passage way and the second area to be proximate a mine working face.
- the method to include the step of releasing the alarm gas in the intake airflow of the mine proximate the mine working face.
- the method to include the step maintaining a predetermined maximum distance between the source of pressurised gas and the mine working face.
- the method includes the step of installing additional pressurised gas containers upon progression of the mine working face, alternatively for relocation the already installed sources of pressurised gas to maintain the predetermined maximum distance between the source of pressurised gas and the mine working face.
- the method to include the step of each event sensor transmitting an alarm signal across a predeterminable range.
- each alarm signal is further provided for each alarm signal to also be transmitted to a remotely control station.
- Figure 1 is a plan view of a mine in which a safety system has been installed.
- Figure 2 is a part sectional elevation of a housing for a pressurised gas container.
- FIG 1 a plan view of a mine (1) is shown.
- the mine (1) includes a main hauling way (2) and several mine development ends (3).
- Each development end provides a stope working face (4) at which miners excavates rock.
- the length of a development end (3) can typically be in the order of about 1000m.
- the mine is ventilated through an air intake flow system (not shown). Air (9) is forced through the mine workings in the system and down (10) the development ends until it reaches the working faces (4).
- the event sensors (6a, 6b, 6c, 6d) in a specific area are linked by means of electrical cable to specific sources of pressurized gas (7a, 7b, 7c) in that vicinity.
- the sources (7a, 7b, 7c) are chosen to be in a predetermined range from the event sensors (6a, 6b, 6c, 6d) and also to be in the direction of airflow from the event sensors (6a, 6b, 6c, 6d). This is done to ensure that any area that could be effected by smoke spreading with the airflow is warned in time about the danger.
- the control means in the linked gas sources (7a, 7b, 7c) Upon receipt of the signal the control means in the linked gas sources (7a, 7b, 7c) will open the pressurized gas containers (not shown) to release citrus scented nitrogen gas, which is both non-toxic and non-flammable, into the airflow of the intake air flow system of the mine.
- the citrus scented gas will be transported by the airflow until it reaches the workface. As soon as the miners smell the citrus scented gas they will realize that an alarm has been triggered. They then have the opportunity to don their safety gear and walk back towards the refuge bays (5) in the hauling way (2).
- FIG. 2 Detail of an alarm unit (20) for a pressurized gas source is shown in Figure 2. It shows a metal box (21) that is mountable to a wall of a mine development end (3).
- the box (21) includes a conventional alarm light (22) and audible siren (23).
- a container (24) with pressurized gas therein is secured inside the alarm unit (20).
- the gas container (24) has an outlet (25) that extends through the alarm unit outer cover (not shown) to enable the gas to be released outside the unit (20).
- the unit (20) has a lock (26) to prevent tampering with the equipment.
- miners would only become aware of the presence of the gases when other portable gas detection instruments they carry warns them of the presence of such gases.
- miners can be warned of an earth tremor in another part of the mine which would also increase the time they have to react, or of possibly dangerous rise in temperature in an area of the mine.
- the control room will have the ability to immediately identify the type of event (fire, type of noxious gas, earth tremor, environment temperature), the magnitude of the event (gas concentration, magnitude of the tremor on for instance the Richter scale, specific temperature), and the distribution of the event (from the number and spread of event sensors sending signals) as well as the spread of the for instance a fire (by following the sequence in which event sensors send signals). This will enable the control room to take the most appropriate action to combat the event, which could also save lives, focuses the action to the appropriate area and avoids unnecessary disruptions to unaffected areas.
- type of event fire, type of noxious gas, earth tremor, environment temperature
- the magnitude of the event gas concentration, magnitude of the tremor on for instance the Richter scale, specific temperature
- the distribution of the event from the number and spread of event sensors sending signals
- This will enable the control room to take the most appropriate action to combat the event, which could also save lives, focuses the action to the appropriate area and avoids unnecessary disruptions to unaffected areas.
- gas sources (7) can be moved along the development end to remain in close proximity to the working face, or preferably new gas sources can be installed once the working face has moved a predetermined distance (which should be less than the distance of about 600m over which the citrus scented gas can reliably be smelled).
- Part of the control of the mine includes temperature sensing in the passages. By sensing the temperature of the environment close to the miners it is possible to react quicker to a dangerous rise in temperature in this environment
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA200401195A EA006179B1 (en) | 2002-03-13 | 2002-09-20 | Safety system |
JP2003574958A JP2005520074A (en) | 2002-03-13 | 2002-09-20 | Safety system |
EP02772636A EP1483481A1 (en) | 2002-03-13 | 2002-09-20 | Safety system |
US10/507,657 US20050104737A1 (en) | 2002-03-13 | 2002-09-20 | Safety system |
BR0215635-0A BR0215635A (en) | 2002-03-13 | 2002-09-20 | Security system and its method of operation. |
IL16400102A IL164001A0 (en) | 2002-03-13 | 2002-09-20 | Safety system |
AU2002337394A AU2002337394A1 (en) | 2002-03-13 | 2002-09-20 | Safety system |
MXPA04008791A MXPA04008791A (en) | 2002-03-13 | 2002-09-20 | Safety system. |
CA002478946A CA2478946A1 (en) | 2002-03-13 | 2002-09-20 | Safety system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200202057A ZA200202057B (en) | 2002-03-13 | 2002-03-13 | Safety system. |
ZA2002/2057 | 2002-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003076765A1 true WO2003076765A1 (en) | 2003-09-18 |
Family
ID=27805741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2002/003870 WO2003076765A1 (en) | 2002-03-13 | 2002-09-20 | Safety system |
Country Status (12)
Country | Link |
---|---|
US (1) | US20050104737A1 (en) |
EP (1) | EP1483481A1 (en) |
JP (1) | JP2005520074A (en) |
CN (1) | CN1625643A (en) |
AU (1) | AU2002337394A1 (en) |
BR (1) | BR0215635A (en) |
CA (1) | CA2478946A1 (en) |
EA (1) | EA006179B1 (en) |
IL (1) | IL164001A0 (en) |
MX (1) | MXPA04008791A (en) |
WO (1) | WO2003076765A1 (en) |
ZA (1) | ZA200202057B (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7174783B2 (en) | 1996-01-23 | 2007-02-13 | Mija Industries, Inc. | Remote monitoring of fluid containers |
US7188679B2 (en) | 1996-01-23 | 2007-03-13 | Mija Industries, Inc. | Remote fire extinguisher station inspection |
US7271704B2 (en) | 1996-01-23 | 2007-09-18 | Mija Industries, Inc. | Transmission of data to emergency response personnel |
US7450020B2 (en) | 1996-01-23 | 2008-11-11 | Mija Industries, Inc. | Signaling pressure detection assembly |
CN101787899A (en) * | 2010-03-03 | 2010-07-28 | 北京鑫源九鼎科技有限公司 | Primary-secondary type gas sensor |
CN101788547A (en) * | 2010-03-03 | 2010-07-28 | 北京鑫源九鼎科技有限公司 | Methane sensor with bidirectional data transmission function |
US7895884B2 (en) | 1996-01-23 | 2011-03-01 | En-Gauge, Inc. | Monitoring contents of fluid containers |
CN101718212B (en) * | 2009-10-09 | 2013-05-22 | 西安西科测控设备有限责任公司 | Device for tracking and early warning outburst danger of mine coal and gas in real time |
US8854194B2 (en) | 1996-01-23 | 2014-10-07 | En-Gauge, Inc. | Remote monitoring |
US8981927B2 (en) | 2008-02-13 | 2015-03-17 | En-Gauge, Inc. | Object Tracking with emergency equipment |
US9041534B2 (en) | 2011-01-26 | 2015-05-26 | En-Gauge, Inc. | Fluid container resource management |
US9478121B2 (en) | 2008-02-13 | 2016-10-25 | En-Gauge, Inc. | Emergency equipment power sources |
US9606013B2 (en) | 1996-01-23 | 2017-03-28 | En-Gauge, Inc. | Remote fire extinguisher station inspection |
US9609287B2 (en) | 2005-03-02 | 2017-03-28 | En-Gauge, Inc. | Remote monitoring |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005031426A1 (en) * | 2005-07-04 | 2007-01-18 | Claas Selbstfahrende Erntemaschinen Gmbh | Method and device for optimizing operating parameters of an agricultural working machine |
US20120012346A1 (en) * | 2010-07-14 | 2012-01-19 | Adam Chattaway | Odorant for fire suppression system |
CN102011612B (en) * | 2010-11-20 | 2013-01-23 | 无锡泰立特科技有限公司 | Multifunctional tube bundle monitoring and emergency extinguishing prevention system |
US20120217028A1 (en) * | 2011-02-24 | 2012-08-30 | Kidde Technologies, Inc. | Active odorant warning |
CN102926810B (en) * | 2012-11-16 | 2014-09-10 | 天地(常州)自动化股份有限公司 | Forecasting method of coal and gas outburst |
CN103016064B (en) * | 2012-12-26 | 2015-04-22 | 北京邮电大学 | Analyzing method and analyzing system of gas accident reason |
US9268473B2 (en) * | 2014-02-06 | 2016-02-23 | Honeywell International Inc. | Method and system of interacting with building security systems |
CN104614021A (en) * | 2015-02-03 | 2015-05-13 | 李冠君 | Underground early-warning and monitoring device for mine |
EP3332250A1 (en) | 2015-08-06 | 2018-06-13 | Honeywell International Inc. | System and method for benchmarking, determining health indicator, and predictive analysis of gas data |
CN105736053A (en) * | 2016-02-29 | 2016-07-06 | 周丹 | Coal mine underground environment monitor |
CN106401650B (en) * | 2016-10-21 | 2020-11-10 | 中国矿业大学(北京) | Multi-parameter mine roadway fire monitoring and alarming system |
CN106481361A (en) * | 2016-10-21 | 2017-03-08 | 中国矿业大学(北京) | Mine laneway fire monitoring alarm system |
IT201700029104A1 (en) * | 2017-03-20 | 2018-09-20 | Christian Bertei | Modular system for human and environmental safety in mining sites. |
CN111005764A (en) * | 2019-11-18 | 2020-04-14 | 临沂大学 | Rock burst multi-parameter monitoring and early warning system under two hard conditions |
CN113605980B (en) * | 2021-07-23 | 2024-03-29 | 上海德衡数据科技有限公司 | Intelligent early warning mine safety method and system based on Internet of things |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2894478A (en) * | 1956-08-31 | 1959-07-14 | Reed William Wilson | Fluid signaling means |
US5276434A (en) * | 1992-04-03 | 1994-01-04 | Brooks Elgin C | Carbon monoxide concentration indicator and alarm |
US5552088A (en) * | 1994-10-18 | 1996-09-03 | Pottier; Charles | Non-ozone depleting malodorous composition of matter and warning system |
WO1997030313A1 (en) * | 1996-02-20 | 1997-08-21 | Polk Steven A | Heating system disabler |
US6063632A (en) * | 1998-11-12 | 2000-05-16 | Perkins; Gary | Water leak detection |
FR2790722A1 (en) * | 1999-03-12 | 2000-09-15 | Patrick Chevassu | Liquid petrol gas fire alert mechanism having container with inner clear dense smoke emitting material activated by fire opening front enclosure. |
FR2811117A1 (en) * | 2000-06-29 | 2002-01-04 | Giat Ind Sa | Distance material/product identification unit having product related signalling mechanism and measurement mechanisms detecting response with coordinating switching unit. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2468369A (en) * | 1946-07-09 | 1949-04-26 | Oliver Iron Mining Company | Stench warning device |
CA2058704C (en) * | 1991-01-04 | 1997-11-25 | Michael John Camille Marsh | Communication system_with addressable functional modules. |
US5742235A (en) * | 1995-07-21 | 1998-04-21 | Miche ; John Andrew | Vertical, unidirectional seismic switch |
US6252510B1 (en) * | 1998-10-14 | 2001-06-26 | Bud Dungan | Apparatus and method for wireless gas monitoring |
US6632674B1 (en) * | 1999-03-31 | 2003-10-14 | Industrial Scientific Corporation | Method of testing gas detection instruments and associated apparatus |
-
2002
- 2002-03-13 ZA ZA200202057A patent/ZA200202057B/en unknown
- 2002-09-20 US US10/507,657 patent/US20050104737A1/en not_active Abandoned
- 2002-09-20 EA EA200401195A patent/EA006179B1/en unknown
- 2002-09-20 JP JP2003574958A patent/JP2005520074A/en active Pending
- 2002-09-20 IL IL16400102A patent/IL164001A0/en unknown
- 2002-09-20 MX MXPA04008791A patent/MXPA04008791A/en unknown
- 2002-09-20 AU AU2002337394A patent/AU2002337394A1/en not_active Abandoned
- 2002-09-20 BR BR0215635-0A patent/BR0215635A/en not_active IP Right Cessation
- 2002-09-20 CA CA002478946A patent/CA2478946A1/en not_active Abandoned
- 2002-09-20 WO PCT/IB2002/003870 patent/WO2003076765A1/en not_active Application Discontinuation
- 2002-09-20 CN CN02828760.6A patent/CN1625643A/en active Pending
- 2002-09-20 EP EP02772636A patent/EP1483481A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2894478A (en) * | 1956-08-31 | 1959-07-14 | Reed William Wilson | Fluid signaling means |
US5276434A (en) * | 1992-04-03 | 1994-01-04 | Brooks Elgin C | Carbon monoxide concentration indicator and alarm |
US5552088A (en) * | 1994-10-18 | 1996-09-03 | Pottier; Charles | Non-ozone depleting malodorous composition of matter and warning system |
WO1997030313A1 (en) * | 1996-02-20 | 1997-08-21 | Polk Steven A | Heating system disabler |
US6063632A (en) * | 1998-11-12 | 2000-05-16 | Perkins; Gary | Water leak detection |
FR2790722A1 (en) * | 1999-03-12 | 2000-09-15 | Patrick Chevassu | Liquid petrol gas fire alert mechanism having container with inner clear dense smoke emitting material activated by fire opening front enclosure. |
FR2811117A1 (en) * | 2000-06-29 | 2002-01-04 | Giat Ind Sa | Distance material/product identification unit having product related signalling mechanism and measurement mechanisms detecting response with coordinating switching unit. |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8854194B2 (en) | 1996-01-23 | 2014-10-07 | En-Gauge, Inc. | Remote monitoring |
US7188679B2 (en) | 1996-01-23 | 2007-03-13 | Mija Industries, Inc. | Remote fire extinguisher station inspection |
US7271704B2 (en) | 1996-01-23 | 2007-09-18 | Mija Industries, Inc. | Transmission of data to emergency response personnel |
US7450020B2 (en) | 1996-01-23 | 2008-11-11 | Mija Industries, Inc. | Signaling pressure detection assembly |
US7574911B2 (en) | 1996-01-23 | 2009-08-18 | Mija Industries, Inc. | Remote fire extinguisher station inspection |
US9606013B2 (en) | 1996-01-23 | 2017-03-28 | En-Gauge, Inc. | Remote fire extinguisher station inspection |
US7895884B2 (en) | 1996-01-23 | 2011-03-01 | En-Gauge, Inc. | Monitoring contents of fluid containers |
US7174783B2 (en) | 1996-01-23 | 2007-02-13 | Mija Industries, Inc. | Remote monitoring of fluid containers |
US9609287B2 (en) | 2005-03-02 | 2017-03-28 | En-Gauge, Inc. | Remote monitoring |
US9478121B2 (en) | 2008-02-13 | 2016-10-25 | En-Gauge, Inc. | Emergency equipment power sources |
US8981927B2 (en) | 2008-02-13 | 2015-03-17 | En-Gauge, Inc. | Object Tracking with emergency equipment |
CN101718212B (en) * | 2009-10-09 | 2013-05-22 | 西安西科测控设备有限责任公司 | Device for tracking and early warning outburst danger of mine coal and gas in real time |
CN101788547A (en) * | 2010-03-03 | 2010-07-28 | 北京鑫源九鼎科技有限公司 | Methane sensor with bidirectional data transmission function |
CN101787899A (en) * | 2010-03-03 | 2010-07-28 | 北京鑫源九鼎科技有限公司 | Primary-secondary type gas sensor |
US9041534B2 (en) | 2011-01-26 | 2015-05-26 | En-Gauge, Inc. | Fluid container resource management |
US9747569B2 (en) | 2011-01-26 | 2017-08-29 | En-Gauge, Inc. | Fluid container resource management |
US10540622B2 (en) | 2011-01-26 | 2020-01-21 | En-Gauge, Inc. | Fluid container resource management |
Also Published As
Publication number | Publication date |
---|---|
ZA200202057B (en) | 2003-05-28 |
IL164001A0 (en) | 2005-12-18 |
EP1483481A1 (en) | 2004-12-08 |
BR0215635A (en) | 2004-12-21 |
EA200401195A1 (en) | 2005-04-28 |
CN1625643A (en) | 2005-06-08 |
JP2005520074A (en) | 2005-07-07 |
AU2002337394A1 (en) | 2003-09-22 |
CA2478946A1 (en) | 2003-09-18 |
EA006179B1 (en) | 2005-10-27 |
MXPA04008791A (en) | 2005-06-20 |
US20050104737A1 (en) | 2005-05-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20050104737A1 (en) | Safety system | |
EP3407315B1 (en) | Social safety network system having portable light for both wireless disaster fire detection and crime prevention | |
KR101725774B1 (en) | Smart Fire Fighting Evacuation System | |
CN101925934B (en) | Evacuation device and escape route display therefor | |
US7511625B2 (en) | Mine safety system | |
US4709330A (en) | System for supervising and guiding persons in construction | |
US7619534B2 (en) | Method and apparatus for detection of hazardous or potentially hazardous conditions | |
KR101728521B1 (en) | Real-time fire fighting sensing and monitoring system | |
CN100470597C (en) | Safety protection monitoring system | |
KR101926746B1 (en) | Fire fighting safety system using electricity and communication facility of apartment house | |
JP2005520074A5 (en) | ||
GB2273593A (en) | Monitoring landfill sites | |
KR102409680B1 (en) | Safety system for workers in dangerous working place | |
CN102220878A (en) | Fixed shelter with double-protection structure | |
KR101618605B1 (en) | Emergency Leading Apparatus Based on Sound | |
KR20070085192A (en) | Remote control system of a carbon dioxide(halon replacement) | |
JP2023068011A (en) | Fire-fighting equipment | |
KR101900203B1 (en) | Fire detector and intelligent automatic fire dectecting system including the same | |
KR102282559B1 (en) | Building monitoring system for sensing fire on every fire compartment in real time by using sensor attached to edge of hole of fire wall | |
KR102091348B1 (en) | Integrated Alarm System for Using Radio Frequency (RF) System | |
US4415204A (en) | Emergency system for mines | |
CN211119054U (en) | L ED emergency indicator lamp based on Internet of things | |
CN218100412U (en) | Miner's lamp | |
CN220440867U (en) | Voice intercom communication system | |
KR20220121225A (en) | Movable toilet having Disaster Preventing Facility and Method for Controlling the Same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 10507657 Country of ref document: US Ref document number: 164001 Country of ref document: IL |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2478946 Country of ref document: CA Ref document number: PA/a/2004/008791 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003574958 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002337394 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002772636 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200401195 Country of ref document: EA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20028287606 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2002772636 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2002772636 Country of ref document: EP |