GB2587116A - Adaptive sensing system for ambient ground-gas concentration with a multiplexor and flow-rate measurement - Google Patents
Adaptive sensing system for ambient ground-gas concentration with a multiplexor and flow-rate measurement Download PDFInfo
- Publication number
- GB2587116A GB2587116A GB2016406.7A GB202016406A GB2587116A GB 2587116 A GB2587116 A GB 2587116A GB 202016406 A GB202016406 A GB 202016406A GB 2587116 A GB2587116 A GB 2587116A
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- GB
- United Kingdom
- Prior art keywords
- data
- gas
- sensing
- sensed
- sampling
- Prior art date
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- Withdrawn
Links
- 238000005259 measurement Methods 0.000 title claims 9
- 230000003044 adaptive effect Effects 0.000 title 1
- 238000005070 sampling Methods 0.000 claims abstract 20
- 238000012545 processing Methods 0.000 claims abstract 11
- 238000012544 monitoring process Methods 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims 38
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 2
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 2
- 238000000034 method Methods 0.000 claims 2
- 230000006855 networking Effects 0.000 claims 2
- 239000012855 volatile organic compound Substances 0.000 claims 2
- 230000004913 activation Effects 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 238000004891 communication Methods 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000000053 physical method Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0022—General constructional details of gas analysers, e.g. portable test equipment using a number of analysing channels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0068—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a computer specifically programmed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0073—Control unit therefor
- G01N33/0075—Control unit therefor for multiple spatially distributed sensors, e.g. for environmental monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/26—Devices for withdrawing samples in the gaseous state with provision for intake from several spaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N2001/2297—Timing devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0067—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display by measuring the rate of variation of the concentration
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Soil Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
A gas sensing device and a gas monitoring system for sensing ground gas is disclosed. The device comprises a power source, data processing means and memory means operably interfaced with the data processing means, which store sampling configuration data and sensed data. A multiplexor is configured with a plurality of inlets wherein each inlet can receive a gas sample from a different physical location to enable at least one of sampling, sensing and outputting of data from each location. The device further comprises sensing means operably interfaced with the power source and the data processing means. The sensing means samples ambient gas adjacent the device according to first sampling configuration data and outputs sensed gas concentration data and sensed gas flow data. The device further comprises a multiplexer device to enable sampling, sensing and outputting of data from a plurality of physical measurement locations.
Claims (17)
1. A gas sensing device to measure ambient ground gas, comprising a power source ; data processing means ; memory means operably interfaced with the data processing means and for storing sampling configuration data and sensed data ; a multiplexor configured with a plurality of inlets wherein each inlet can receive a gas sample from a different physical location to enable at least one of sampling, sensing and outputting of data from each location; sensing means operably interfaced with the power source and the data processing means, wherein the sensing means is adapted to sample ambient ground gas adjacent the device according to first sampling configuration data and to output at least_sensed gas concentration data and sensed gas flow data obtained from each inlet; and a telemetry module operably interfaced with the power source and the data processing means, wherein the telemetry module comprises means to establish a network connection with a remote terminal, communicate the sensed data to the remote terminal and receive second sampling configuration data from the remote terminal for updating the first sampling configuration data; wherein the sampling configuration data comprises data representative of a frequency and duration of gas flow measurement, data representative of a frequency and duration of gas concentration measurement, and data representative of an offset time corresponding to a time interval between a gas flow measurement and a gas concentration measurement.
2. The device according to claim 1, wherein the sensing means comprises a gas concentration sensing module and a gas flow sensing module.
3. The device according to claim 2, wherein the gas concentration sensing module comprises a gas sampling circuit, extending between a first gas inlet and a first gas outlet and including a sensor chamber, a pump and a pressure gauge.
4. The device according to claim 3, wherein the sensor chamber and the pressure gauge input data to a sensor circuit interfaced with the data processing means.
5. The device according to claim 3 or 4, wherein the sampling configuration data further comprises data representative of at least a duration of pump activation.
6. The device according to any of claims 2 to 5, wherein the gas flow sensing module comprises a gas sampling circuit, extending between a second gas inlet and a second gas outlet and including a valve and a flow sensor.
7. The device according to claim 6, wherein the flow sensor is interfaced with the data processing means.
8. The device according to any of claims 1 to 7, wherein the gas is selected from methane (CH4), carbon dioxide (C02), oxygen (02), carbon monoxide (CO), hydrogen sulphide (H2S) and volatile organic compounds (VOCs).
9. The device according to any of claims 1 to 8, wherein the sensing means is further adapted to sense and output data representative of temperature in the range -20 to 50 degrees centigrade, and/or humidity data in the range 0% to 100% RH, and/or atmospheric pressure in the range up to 150 millibars or in the range 800 to 1200 hectopascals.
10. The device according to any of claims 1 to 9, wherein the power source is a renewable energy source.
11. The device according to claim 10, wherein the power source is power storage means interfaced with the renewable energy source .
12. The device according to claim 10 or 11, wherein the renewable energy source is a photovoltaic array secured to the gas sensing device.
13. The device according to any of claims 1 to 12, wherein the multiplexer comprises a plurality of outlets corresponding to the plurality of inlets
14. The device according to any of claims 1 to 13, wherein the telemetry module is a telemetry communication circuit .
15. The device according to any of claims 1 to 14, wherein the gas sensing device further comprises short-range wireless data networking means.
16. An ambient gas monitoring system, comprising at least one ambient gas sensing device according to any of claims 1 to 15; and a data processing terminal having networking means, wherein the data processing terminal is the remote terminal and is adapted to receive sensed gas concentration data and sensed gas flow data from the or each remote gas sensing device, and to generate device-respective second sampling configuration data according to the received sensed data for updating the first sampling configuration data at the or each remote gas sensing device.
17. A method to measure ambient ground gas using a sensing device, said method comprising: configuring a multiplexor with a plurality of inlets wherein each inlet can receive a gas sample from a different physical location to enable at least one of sampling, sensing and outputting of data from each location; sensing sample ambient ground gas adjacent the device according to a first sampling configuration data and to output at least sensed gas concentration data and sensed gas flow data; communicating the sensed data to a remote terminal and receive at the sensing device second sampling configuration data from the remote terminal for updating the first sampling configuration data; wherein the sampling configuration data comprises data representative of a frequency and duration of gas flow measurement, data representative of a frequency and duration of gas concentration measurement, and data representative of an offset time corresponding to a time interval between a gas flow measurement and a gas concentration measurement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1805704.2A GB201805704D0 (en) | 2018-04-05 | 2018-04-05 | Adaptive sensing system for ambient ground-gas concentration with a multiplexor and flow rate measurement |
| PCT/EP2019/058537 WO2019193108A1 (en) | 2018-04-05 | 2019-04-04 | Adaptive sensing system for ambient ground-gas concentration with a multiplexor and flow-rate measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202016406D0 GB202016406D0 (en) | 2020-12-02 |
| GB2587116A true GB2587116A (en) | 2021-03-17 |
Family
ID=62202937
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1805704.2A Ceased GB201805704D0 (en) | 2018-04-05 | 2018-04-05 | Adaptive sensing system for ambient ground-gas concentration with a multiplexor and flow rate measurement |
| GB2016406.7A Withdrawn GB2587116A (en) | 2018-04-05 | 2019-04-04 | Adaptive sensing system for ambient ground-gas concentration with a multiplexor and flow-rate measurement |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1805704.2A Ceased GB201805704D0 (en) | 2018-04-05 | 2018-04-05 | Adaptive sensing system for ambient ground-gas concentration with a multiplexor and flow rate measurement |
Country Status (2)
| Country | Link |
|---|---|
| GB (2) | GB201805704D0 (en) |
| WO (1) | WO2019193108A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023176487A (en) * | 2022-05-31 | 2023-12-13 | 株式会社リコー | Gas detection device and gas detection system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5355739A (en) * | 1993-03-26 | 1994-10-18 | University Of Central Florida | Apparatus for measuring gas emission rate from soil |
| US20160238494A1 (en) * | 2015-02-17 | 2016-08-18 | Chrintec, Llc | Gas Sampling and Management System |
-
2018
- 2018-04-05 GB GBGB1805704.2A patent/GB201805704D0/en not_active Ceased
-
2019
- 2019-04-04 WO PCT/EP2019/058537 patent/WO2019193108A1/en active Application Filing
- 2019-04-04 GB GB2016406.7A patent/GB2587116A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5355739A (en) * | 1993-03-26 | 1994-10-18 | University Of Central Florida | Apparatus for measuring gas emission rate from soil |
| US20160238494A1 (en) * | 2015-02-17 | 2016-08-18 | Chrintec, Llc | Gas Sampling and Management System |
Non-Patent Citations (3)
| Title |
|---|
| Buhalqem ; mAMTIMIN et al: "Landnutzung und Trockengebiete - raum-zeitliche messung der diogenen Stickstoffmonoxid-Emission aus Boden Landuse and drylands - spatio-temporal measurements of biogenic nitic oxide emissions from soils",, 1 January 2013 (2013-01-01, Retrieved from the Internet: URL:https * |
| OERTEL CORNELIUS ET AL: "Greenhouse gas emissions from soils-A review", CHEMIE DER ERDE - GEOCHEMISTRY, ELSEIVER, AMSTERDAM, NL, vol. 76, no. 3, 26 April 2016 (2016-04-26), pages 327-352, ISSN: 0009-2819, doi: 10.1016/J.CHEMER.2016.04.02 paragraph [3.1.2] - paragraph [3.1.3] paragraph [3.7.1.2] * |
| PANIKOV ET AL: "Membrane probe array: Technique development and observation of C02 and CH4 diurnal osci;;ations in peat profile" SOIL BIOLOGY AND BIOCHEMISTRY, PERGAMON, OXFORD, GB, vol. 39, no. 7, 4 May2007 (2007-05-04), pages 1712-1723, ISSN: 0038-0717, DOI: 10.1016/J.SOILBIO.2007.01.034 abstract * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201805704D0 (en) | 2018-05-23 |
| GB202016406D0 (en) | 2020-12-02 |
| WO2019193108A1 (en) | 2019-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |