A METHOD OF OPERATING A GAS SENSING DEVICE, AND CORRESPONDING GAS SENSING DEVICE
A method of operating a gas sensing device is described. The device comprises a gas sensor circuit comprising a resistive gas sensing element, and a control circuit. The method comprises receiving (202) a signal indicative of a value of resistance of the gas sensing element, processing (204) the sig...
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| creator | ALESSI, Enrico Rosario PASSANITI, Fabio |
| description | A method of operating a gas sensing device is described. The device comprises a gas sensor circuit comprising a resistive gas sensing element, and a control circuit. The method comprises receiving (202) a signal indicative of a value of resistance of the gas sensing element, processing (204) the signal received to compute a value of a gas concentration, performing a comparison (206) of said value of gas concentration to a threshold, and, conditioned on the outcome of a diagnosis procedure (30), setting the device to an alert signal issue state (208) as a function of the outcome of said comparison. The diagnosis procedure comprises computing a set of parameters indicative of the state of the gas sensor circuit, and classifying the gas sensor circuit in one of a first, a second and a third class based on the parameters. As a result of the gas sensor circuit being in the first class, setting the device to said alert signal issue state (208) is disabled. As a result of the gas sensor circuit being in the second class, a sensitivity correction procedure of the gas sensor circuit is triggered and the diagnosis procedure (30) is repeated. As a result of the gas sensor circuit being in said third class, setting the device to said alert signal issue state (208) is enabled. |
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The device comprises a gas sensor circuit comprising a resistive gas sensing element, and a control circuit. The method comprises receiving (202) a signal indicative of a value of resistance of the gas sensing element, processing (204) the signal received to compute a value of a gas concentration, performing a comparison (206) of said value of gas concentration to a threshold, and, conditioned on the outcome of a diagnosis procedure (30), setting the device to an alert signal issue state (208) as a function of the outcome of said comparison. The diagnosis procedure comprises computing a set of parameters indicative of the state of the gas sensor circuit, and classifying the gas sensor circuit in one of a first, a second and a third class based on the parameters. As a result of the gas sensor circuit being in the first class, setting the device to said alert signal issue state (208) is disabled. As a result of the gas sensor circuit being in the second class, a sensitivity correction procedure of the gas sensor circuit is triggered and the diagnosis procedure (30) is repeated. As a result of the gas sensor circuit being in said third class, setting the device to said alert signal issue state (208) is enabled.</description><language>eng ; fre ; ger</language><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; PHYSICS ; TESTING</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230726&DB=EPODOC&CC=EP&NR=3761025B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230726&DB=EPODOC&CC=EP&NR=3761025B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ALESSI, Enrico Rosario</creatorcontrib><creatorcontrib>PASSANITI, Fabio</creatorcontrib><title>A METHOD OF OPERATING A GAS SENSING DEVICE, AND CORRESPONDING GAS SENSING DEVICE</title><description>A method of operating a gas sensing device is described. The device comprises a gas sensor circuit comprising a resistive gas sensing element, and a control circuit. The method comprises receiving (202) a signal indicative of a value of resistance of the gas sensing element, processing (204) the signal received to compute a value of a gas concentration, performing a comparison (206) of said value of gas concentration to a threshold, and, conditioned on the outcome of a diagnosis procedure (30), setting the device to an alert signal issue state (208) as a function of the outcome of said comparison. The diagnosis procedure comprises computing a set of parameters indicative of the state of the gas sensor circuit, and classifying the gas sensor circuit in one of a first, a second and a third class based on the parameters. As a result of the gas sensor circuit being in the first class, setting the device to said alert signal issue state (208) is disabled. As a result of the gas sensor circuit being in the second class, a sensitivity correction procedure of the gas sensor circuit is triggered and the diagnosis procedure (30) is repeated. As a result of the gas sensor circuit being in said third class, setting the device to said alert signal issue state (208) is enabled.</description><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZAhwVPB1DfHwd1Hwd1PwD3ANcgzx9HNXcFRwdwxWCHb1CwbxXFzDPJ1ddRQc_VwUnP2DglyDA_z9XEAymKp4GFjTEnOKU3mhNDeDgptriLOHbmpBfnxqcUFicmpeakm8a4CxuZmhgZGpk6ExEUoAt7It8g</recordid><startdate>20230726</startdate><enddate>20230726</enddate><creator>ALESSI, Enrico Rosario</creator><creator>PASSANITI, Fabio</creator><scope>EVB</scope></search><sort><creationdate>20230726</creationdate><title>A METHOD OF OPERATING A GAS SENSING DEVICE, AND CORRESPONDING GAS SENSING DEVICE</title><author>ALESSI, Enrico Rosario ; PASSANITI, Fabio</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3761025B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2023</creationdate><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>ALESSI, Enrico Rosario</creatorcontrib><creatorcontrib>PASSANITI, Fabio</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ALESSI, Enrico Rosario</au><au>PASSANITI, Fabio</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A METHOD OF OPERATING A GAS SENSING DEVICE, AND CORRESPONDING GAS SENSING DEVICE</title><date>2023-07-26</date><risdate>2023</risdate><abstract>A method of operating a gas sensing device is described. The device comprises a gas sensor circuit comprising a resistive gas sensing element, and a control circuit. The method comprises receiving (202) a signal indicative of a value of resistance of the gas sensing element, processing (204) the signal received to compute a value of a gas concentration, performing a comparison (206) of said value of gas concentration to a threshold, and, conditioned on the outcome of a diagnosis procedure (30), setting the device to an alert signal issue state (208) as a function of the outcome of said comparison. The diagnosis procedure comprises computing a set of parameters indicative of the state of the gas sensor circuit, and classifying the gas sensor circuit in one of a first, a second and a third class based on the parameters. As a result of the gas sensor circuit being in the first class, setting the device to said alert signal issue state (208) is disabled. As a result of the gas sensor circuit being in the second class, a sensitivity correction procedure of the gas sensor circuit is triggered and the diagnosis procedure (30) is repeated. As a result of the gas sensor circuit being in said third class, setting the device to said alert signal issue state (208) is enabled.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | A METHOD OF OPERATING A GAS SENSING DEVICE, AND CORRESPONDING GAS SENSING DEVICE |
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