GB2527758A - Wearable safety sensor - Google Patents
Wearable safety sensor Download PDFInfo
- Publication number
- GB2527758A GB2527758A GB1411550.5A GB201411550A GB2527758A GB 2527758 A GB2527758 A GB 2527758A GB 201411550 A GB201411550 A GB 201411550A GB 2527758 A GB2527758 A GB 2527758A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sensor
- oxygen
- oxygen level
- housing
- indicating means
- 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- Withdrawn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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 67
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 67
- 239000001301 oxygen Substances 0.000 claims abstract description 67
- 230000002250 progressing effect Effects 0.000 claims description 2
- SGPGESCZOCHFCL-UHFFFAOYSA-N Tilisolol hydrochloride Chemical compound [Cl-].C1=CC=C2C(=O)N(C)C=C(OCC(O)C[NH2+]C(C)(C)C)C2=C1 SGPGESCZOCHFCL-UHFFFAOYSA-N 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 19
- 239000002341 toxic gas Substances 0.000 abstract description 15
- 231100001261 hazardous Toxicity 0.000 abstract description 14
- 230000000007 visual effect Effects 0.000 abstract description 14
- 238000003466 welding Methods 0.000 abstract description 8
- 238000005065 mining Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000027734 detection of oxygen Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000018997 giddiness Diseases 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- G08B21/14—Toxic gas alarms
-
- 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
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Mining & Mineral Resources (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Emergency Alarm Devices (AREA)
Abstract
A wearable safety sensor 1 for use in hazardous environments such as welding and mining. The sensor comprises an oxygen sensor capable of sensing the oxygen level in an environment, a visible indicating means, an audible warning means, a power source such as a battery 4 and a controller. The sensor is operable to inform its user when oxygen levels have dropped below a normal threshold by providing a first visible indication and to provide a second visual warning and an audible alarm when the oxygen level drops to a second threshold lower than the first where there is immediate risk to the user. The sensor may comprise part of a modular system whereby further gas sensors 3 can be removably attached via sliding connectors 7, 8 to sensor base unit 2 to detect toxic gases and to warn the user about the presence of those gases. The visible indicating means may comprise a plurality of LEDs consisting of a green LED lit to indicate an oxygen level above the first threshold, a red LED lit to indicate an oxygen level below the second threshold and another LED to indicate an oxygen level between the first and second thresholds.
Description
TITLE
Wearable Safety Sensor
DESCRIPTION
Field of Invention
The present. invention provides a wearable safety sensor for use by individuals that may he subject to hazardous environments that may have ow oxygen levels and/or toxic gases present.
Background
Many occupations involve individuals working in environments where there is a danger of low oxygen levels and/or exposure to toxic gases. For example. due to the nature of their work welders are at a high risk of low oxygen levels and toxic gases.
Miners are also at a high risk of exposure to low oxygen levels and toxic gases. The variety of toxic gases welders, miners and other similar occupations may come into contact with is wide. Potentially hazardous gases include, but are not limited to, carbon monoxide, zinc, sulphates and many others.
Low oxygen levels are hazardous to life. At sea level the saturation of oxygen in the atmosphere is just over 20%. Levels of oxygen below 17% can start to cause hypoxia.
This can result in nausea, headaches, loss of concentration and general giddiness. If the evel ol oxygen drops below 10% then unconsciousness and eventual death will result. Therefore, detecting low or falling levels of oxygen is critical.
For the reasons set out above it is common for some workers to use gas sensors.
These sensors can detect both low oxygen levels arid the presence of hazardous gases.
Typically these sensors are quite large and expensive and offer an anay of features, calibration methods and displays. For many professionals who work constantly in hazardous conditions these sensors are ideal. However, there is a large population of individuals around the world who are only occasionally exposed to the risk of hazardous gases or low oxygen levels and for these people the size, complexity and expense of typical gas sensors is prohibitive and/or unnecessary.
hi light of the above, there is a need for a cheap and simple sensor that can alert people to the danger of low oxygen levels and the danger of hazardous gases.
Summary of Invention
The present invention provides a wearable safety sensor comprising: an oxygen sensor capable of sensing oxygen levd iii die environment: a visible indicating means; an audible warning means; a power source; and a controller; wherein: when sensor detects that the oxygen level is below a first predetermined level the controller operates the visible indicating means to produce a first warning signal and when the sensor detects that oxygen level is below a second predetermined level that is lower than the first predetermined level the controller operates the visible indicating means to produce a second warning signal and operates the audible warning means to issue an audible warning.
The present invention is advantageous in that it provides a simple wearable sensor that can alert a uscr to falling and low oxygen levels. A sensor according to the present invention can be made cheaply and does not require technical knowledge in order to interpret its warning signals. Therelore, compared to krown gas sensors, the sensor is advantageous for workers that are only occasionally exposed to low oxygen levels and/or hazardous gases.
A sensor according to the present invcntion may Further comprise means for a user to reset or turn off the audible warning means and/or the visual indicating means. For example, the sensor may comprise a switch or other control that. allows a user to turn off the audible warning means and operate using only the visual indicating means or a switch or other control that a'lows a user to turn off the visual indicating means and operate using only the audible warning means.
The oxygen sensor of the present invention may he any suitahk sensor that is capable of detecting the levels of oxygen in the air. Many such sensors are commercially available and the skilled person would readily be able to select a suitable oxygen sensor for any specific embodiment of the present invention.
The present invention may only detect oxygen levels. Although it is possible to detect hazardous gases direcfly using an appropriate gas sensor, their presence may also he detected indirectly by detecting low or falling oxygen levels. This is because low or falling oxygen levels is a good indicator that other gases arc building up. Generally.
for occupations such as mining and welding, it is likely that the other gases that are building up are hazardous. Therefore, in embodiments of the present invention that only detect oxygen levels, the detection of falling oxygen levels may he sufficient to warn a wearer that hazardous gases may be building up.
The first predetermined level and the second predetermined level may be any oxygen level that are suitable for the intended use of the sensor. In prefelTed embodiments of the invention the first predetermined level may be a level at which oxygen depletion and/or the presence of toxic gases may begin to have minor effects on a person wearing the sensor hut wherein that person is not at serious risk if exposure is temporary. The second predetermined level may be a level at which oxygen depletion and/or the presence of toxic gases poses a serious and immediate risk to the wearer. It is anticipated that the skilled person will he able to able to determine suitable oxygen levels for both the first and second predetermined levels depending on the intended use of the sensor and configure the controller appropriately.
Preferably. when the oxygen sensr of the present inventicri detects that the oxygen level is above the first predetermined level the controller operates the visible indicating means to produce a safe signal. In this manner a user will be informed that the oxygen level is safe and, perhaps more importantly, will have a way of confirming that the sensor is operating.
The visihk indicating means of the prcsent invention may he any suitable means that allows information about the oxygen level in the environment to be easily seen by a user or a third party. Suitable visible indicating means include digital screens. dials, and simple lights. It may he preferahlc that the visible indicating means comprises a p'urality of LEDs.
In a preferred embodiment of the invention the visible indicating means comprises a plurality of LEDs, wherein the LEDs consist of a set of LEDs progressing from a green LED to a red LED and the controller controls a single one of the LEDs to be lit depending on the detected oxygen level; the green LED being lit when the oxygen level is detected above the first predetermined level, the red LED being lit when the oxygen level is detected to be below the second predetermined level, and an appropriate LED being lit when the oxygen level is detected to be between the first and second predetermined level. This visible indicating means provides a straightforward and immediately comprehensible way of alerting a user to the oxygen levels in the air.
Preferably the sensor of the present invention will comprise a housing. It may he advantageous that all of the components of the sensor, induding the power supply. are contained within the housing. In such embodimnents thc power supply may be a simple battery, a solar cell, or any other suitable portable power supply. Alternatively, the power supp'y may he external to the housing hut connectable to the housing. In these embodiments the power supply may be a battery. a solar cell, or any other suitable portable power supply including external devices and may be connectable to the housing by a cable. If the power supply is external to the housing it may also be wearable and comprise means icr being wearable such as a clip that allows it to be attached to clothing.
In some embodiments of the invention the present invention will comprise a housing and the visible indicating means may he remote from the housing. For example, the visible indicating means may be remote from the housing such that it may be positioned and/or fixed in an immediately visible position. for example in the normal eye-line of a user whilst the housing, and the sensor(s) housed therein, are positioned in a better position for detecting gas levels in the environment. For example, an embodiment of the invention may be formed to be used in conjunction with a welding helmet. In this embodiment the housing containing the sensor(s) may he fixed or attached externally on the helmet whilst the visihk indicating means may he fixed or attached internally on the helmet in a position that is in the wearer's eye-line when the wearer is welding. In this embodiment of the invention the power supply may he contained within the housing or may be remote to the housing.
If the present invention comprises a housing it may be preferable that the housing comprises means for attaching the sensor to the clothing. This attaching means may he any suitable attaching means and may include a clip, a magnetic attachment, a safety pin, an adhesive fixing, or any other suitable means.
In preferred embodiments of the invention the sensor further comprising attaching means for attaching further sensing devices, wherein, the attaching means is formed such that when a further sensing device is attached they may be powered by the power source and may operate, via the controller, the visible indicating means and the audible warning means. That is, embodiments of the present invention may allow further sensing devices to be attachcd as and when they arc necessary. For example. a sensor for detecting hazardous gases that are a particular risk during welding may be attached ii and when the sensor oldie present invention is used during welding. It is preferable that any further sensing devices are removably attachable such that they can be added and/or removed when necessary.
The further sensing devices may operate the visible indicating means and the audible warning means in any manner apparent to a person skilled in the art. They may operate the visible indicating means and the audible warning means in the same manner as the oxygen sensor, as set. out above. Alternatively, or additionally they may operate the visible indicating means and the audible warning means in an alternative way. For example, the audible warning means may produce a first audible warning sound when the oxygen level is detected to drop below the second predetermined level and it may produce a second, different, audible warning sound when a further sensing device detects that the level of a different gas is hazardous to a user. A further sensing device may operate the visible indicating means in a similar manner i.e. it may produce a different visual output to that produced by the oxygen sensor.
If the present invention comprises a housing, any further sensing devices may be mounted within a housing of the present invention. However, it will he genera'ly preferable that any further scnsing dcviccs will be containcd in their own housing which may be removably attached to the housing of the present invention. The housing of the present invention may be formed with attaching means for removably attaching one or more further sensing devices. Any further sensing devices may be formed with a cooperative attaching means for attaching to the housing of the present invention. The further sensing devices may further comprise a further attaching means that allow additional further sensing devices to be attached to the initial further sensing device and thereby indirectly attached to the housing of the present invention.
Alternatively or additionally a housing of a sensor according to the present invention may comprise a plurality of attaching means for removably attaching further sensor devices.
In any of the manners set out immediately abovc a modular sensing system comprising a sensor according to the present invention and one or more additional sensing devices may he provided. The attaching means of the present invention may be provided in any manner apparent to a person skilled in the art.
Further advantages and features of the present invention will be apparent from the preferred embodiment that is shown in the Figures and is discussed belew.
Drawings Figure 1 is a schematic drawing of a first embodiment of a modular sensing system according to the preferred embodiment of the present invention: and Figure 2 shows the embodiment of Figure 1 mounted on a welding helmet.
A modular sensing system I according to the present invention is shown in Figures 1 and 2. The system 1 comprises a base unit 2, an additional unit 3, a battery 4, and a visual display (not shown). The base unit 2 consists of a housing that contains an oxygen sensor, a controller and a speaker (afi not shown). The base unit 2 is connected to the battery 4 by means of a power cable 5 and has an output 6 for connecting the base unit to the visual display. The base unit 2 has an interlocking connection 7 formed at an end to allow it to he removally connected to the additional unit 3. The additional unit 3 consist of a housing that contains a toxic gas scnsor. The additional unit has an interlocking conncction 8 formed at an cnd to allow it to be removably connected to the base unit 2.
The base unit 2 and the additional unit 3 can he connected together by sliding the units together in a manner that will be immediately apparent. When connected together, the connections 7, 8 of the units 2, 3 allow the components of the additional unit 3 to be powered by the battery 4 and to be controlled by the controller. The additional unit 3 can be disconnected from the base unit 2 at any time without affecting the operation of the base unit 2.
The system I is intended to he used with a welding helmet 9, as shown in Figure 2.
When in use the base unit 2 is fixed to a side of the helmet 9, it may be fixed to the helmet using a magnetic attaching means andlor an adhesive. The base unit 2 is fixed in a position where it can best monitor the gases that will he inhaled by a person wearing the helmet 9. The battery 4 is mounted on the back of the helmet 9 and is connected to the base unit 2 via the power cable 5. The visual display is mounted on the inside of the helmet 9 in a position where it will be in the eye-line of a wearer when the system 1 is iii use. The additional unit 3 is removably attached to the base unit 2.
When in use, when the oxygen sensor detects that the environmental oxygen is at a safe level (i.e. above a first predetermined leve') and the toxic gas sensor does not detect the presence of any toxic gases the visual display will be controlled by the controller to show a safe signal to the user. For examp'e the safe signal may he the illumination of a green LED light.
When the oxygen sensor detects that the environmental oxygen is below the first predetermined level hut ahove a second predetermined levd (i.e. where there is a diminished oxygen level but there is no immediate threat to the health of the user) and when the toxic gas sensor does not detect the presence of any toxic gases the visual display will be controlled by the controller to show a warning signal. For example. the warning signal may be the illununation of one or more amber LED lights depending on the precise oxygen level.
When the oxygen sensor detects that the environmental oxygen level is below a second predetermined level wherein there is an immediate threat to the health of the user and/or the toxic gas sensor detects the presence of toxic gases the visual display will be controlled by the controller to show an alarm signal and the speaker will be controlled by the controller to sound an alarm signal. This is an indicator to the user that they are in immediate danger.
If the additional unit 3 is removed the sensor will operate solely hased on the detection of oxygen levels. If the additional unit 3 is removed during use of the system 1 the visual display and/or the speaker may be controlled by the controller to inlorm the user that the additional unit 3 has been removed or disconnected. This will inform the user if an accidental removal occurs. Similarly, if the visual display is disconnected the speaker will be controlled by the controller to inform the user that this has occurred. Further, the base unit 2 may contain a small power supply that will allow the visual display and/or thc speaker to he eontroflcd to issue a warning ii the power supply is disconnected. This power supply may be rechargeable and be charged by the battery 4.
Claims (10)
- Claims 1. A wearable safety sensor comprising: an oxygen sensor capable of sensing oxygen level in the environment; a visible indicating means: an audible warning means; a power source; and a controller: wherein: when sensor detects that the oxygen level is below a first predetermined level the controller operates the visible indicating means to produce a first warning signal and when the sensor detects that oxygen level is below a second predetermined level that is lower than the first predetermined level (he controller operates the visible indicating means to produce a second warning signal and operates the audible warning means to issue an audible warning.
- 2. A sensor according to claim 1, wherein when the sensor detects that the oxygen level is above the first predetermined level the controller operates the visible indicating means to produce a safe signal.
- 3. A sensor according to claim I or daim 2. wherein the visible indicating means comprises a digital screen.
- 4. A sensor according to any preceding claim, wherein the visible indicating means comprises a plurality of LEDs.
- 5. A sensor according to claim 4. wherein the LEDs consist of a set of LEDs progressing horn a green LED to a red LED arid the controfler controls a single one of the LEDs to be lit depending on the detected oxygen level; the green LED being lit when the oxygen level is detected above the first predetermined level, the red LED being lit when the oxygen level is detected to be below the second predetermined level, and an appropriate LED being lit when the oxygen level is detected to he between the first and second predetermined level. -10-
- 6. A sensor according to any prcccding claim whcrcin thc sensor comprises a housing and all of the components of the sensor are contained within the housing.
- 7. A scnsor according to any of dainis I to 5, whcrcin thc sensor comprises a housing, all of the components except for the power source are contained within the housing, and the power source is remote from but connectable to the housing.
- 8. A sensor according to claim 6 or claim 7, wherein the housing comprising means for attaching the sensor to clothing.
- 9. A sensor according to any preceding claims further comprising attaching means for attaching further sensing devices, wherein, the attaching means is formed such that when a further sensing device is attached they may be powered by the power source and may operate the visible indicating means and the audible warning means.
- 10. A modular sensing system comprising: a sensor according to claim 9; and one or more additional sensing devices that are removaffly connectable to the sensor by the attaching means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1411550.5A GB2527758A (en) | 2014-06-30 | 2014-06-30 | Wearable safety sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1411550.5A GB2527758A (en) | 2014-06-30 | 2014-06-30 | Wearable safety sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201411550D0 GB201411550D0 (en) | 2014-08-13 |
| GB2527758A true GB2527758A (en) | 2016-01-06 |
Family
ID=51410310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1411550.5A Withdrawn GB2527758A (en) | 2014-06-30 | 2014-06-30 | Wearable safety sensor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2527758A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044299A (en) * | 2017-02-08 | 2017-08-15 | 深圳凯达通光电科技有限公司 | A kind of alarm for gas leakage |
| WO2018101928A1 (en) * | 2016-11-30 | 2018-06-07 | Honeywell International Inc. | Intelligent inert measurement mode |
| CN108561185A (en) * | 2018-04-09 | 2018-09-21 | 栾彦锋 | Oxygen therapy warning device for mine detection |
| CN110805472A (en) * | 2019-11-03 | 2020-02-18 | 李建荣 | Safety protection device for mineral geological engineering and use method |
| CN111734477A (en) * | 2020-06-18 | 2020-10-02 | 中国矿业大学(北京) | Underground monitoring type oxygen generation emergency protective clothing based on temperature difference and pressure power generation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090027216A1 (en) * | 2007-07-27 | 2009-01-29 | Chung-Chin Huang | Oxygen sensing device |
| EP2612693A2 (en) * | 2012-01-09 | 2013-07-10 | Honeywell International Inc. | System and method of oxygen deficiency warning in a powered air purifying respirator |
| CN103622188A (en) * | 2013-12-12 | 2014-03-12 | 东华大学 | Intelligent waist belt applicable to operators in underground tunnel |
-
2014
- 2014-06-30 GB GB1411550.5A patent/GB2527758A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090027216A1 (en) * | 2007-07-27 | 2009-01-29 | Chung-Chin Huang | Oxygen sensing device |
| EP2612693A2 (en) * | 2012-01-09 | 2013-07-10 | Honeywell International Inc. | System and method of oxygen deficiency warning in a powered air purifying respirator |
| CN103622188A (en) * | 2013-12-12 | 2014-03-12 | 东华大学 | Intelligent waist belt applicable to operators in underground tunnel |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2020203600B2 (en) * | 2016-11-30 | 2021-04-15 | Honeywell International Inc. | Intelligent inert measurement mode |
| US11170629B2 (en) | 2016-11-30 | 2021-11-09 | Honeywell International Inc. | Intelligent inert measurement mode |
| US12062272B2 (en) | 2016-11-30 | 2024-08-13 | Honeywell International Inc. | Intelligent inert measurement mode |
| EP4332934A3 (en) * | 2016-11-30 | 2024-05-29 | Honeywell International Inc. | Method for gas detection and gas detector |
| US11436908B2 (en) | 2016-11-30 | 2022-09-06 | Honeywell International Inc. | Intelligent inert measurement mode |
| EP4047576A1 (en) * | 2016-11-30 | 2022-08-24 | Honeywell International Inc. | Method for gas detection and gas detector |
| WO2018101928A1 (en) * | 2016-11-30 | 2018-06-07 | Honeywell International Inc. | Intelligent inert measurement mode |
| EP3789980A1 (en) * | 2016-11-30 | 2021-03-10 | Honeywell International Inc. | Method for gas detection and gas detector |
| AU2016430856B2 (en) * | 2016-11-30 | 2020-03-12 | Honeywell International Inc. | Intelligent inert measurement mode |
| CN107044299A (en) * | 2017-02-08 | 2017-08-15 | 深圳凯达通光电科技有限公司 | A kind of alarm for gas leakage |
| CN107044299B (en) * | 2017-02-08 | 2018-12-04 | 泰兴市智谷科技孵化器中心 | A kind of alarm for gas leakage |
| CN108561185B (en) * | 2018-04-09 | 2019-07-26 | 栾彦锋 | Oxygen therapy warning device for mine detection |
| CN108561185A (en) * | 2018-04-09 | 2018-09-21 | 栾彦锋 | Oxygen therapy warning device for mine detection |
| CN110805472A (en) * | 2019-11-03 | 2020-02-18 | 李建荣 | Safety protection device for mineral geological engineering and use method |
| CN111734477A (en) * | 2020-06-18 | 2020-10-02 | 中国矿业大学(北京) | Underground monitoring type oxygen generation emergency protective clothing based on temperature difference and pressure power generation |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201411550D0 (en) | 2014-08-13 |
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