EP3615932A1 - Verfahren, steuergerät und vorrichtung zur detektion eines gasförmigen stoffes in einem gasgemisch - Google Patents

Verfahren, steuergerät und vorrichtung zur detektion eines gasförmigen stoffes in einem gasgemisch

Info

Publication number
EP3615932A1
EP3615932A1 EP18718822.2A EP18718822A EP3615932A1 EP 3615932 A1 EP3615932 A1 EP 3615932A1 EP 18718822 A EP18718822 A EP 18718822A EP 3615932 A1 EP3615932 A1 EP 3615932A1
Authority
EP
European Patent Office
Prior art keywords
measured variable
chemical
time
comparison
gas mixture
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Withdrawn
Application number
EP18718822.2A
Other languages
German (de)
English (en)
French (fr)
Inventor
Ye LU
Mary THOMAS
Rajeev H VENKATESH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3615932A1 publication Critical patent/EP3615932A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483Physical analysis of biological material
    • G01N33/497Physical analysis of biological material of gaseous biological material, e.g. breath
    • G01N33/4972Determining alcohol content
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011Sample conditioning
    • G01N33/0016Sample conditioning by regulating a physical variable, e.g. pressure or temperature

Definitions

  • the invention relates to a method, a control device and a device according to the preamble of the independent claims.
  • Respiratory gas analyzers can analyze a composition and, in particular, a smell of a breathing gas via chemical or physical sensors. Among other things, an alcohol content in the respiratory gas is of interest.
  • a mobile phone which is equipped with a breathing gas sensor to indicate the quality of his breath to a user of the mobile phone.
  • US 2014/0357963 A1 discloses a portable electronic device with an optical sensor by which an alcohol concentration of a breathing gas can be detected.
  • the gas sensor can be designed as a mobile, hand-held device, with which a user a
  • Alcohol concentration or ethanol concentration of his breath can determine.
  • the gas sensor can advantageously have an opening into which the user can blow in or breathe.
  • At least one first measured variable is first detected by a first sensor element and at least one second measured variable by a second sensor element.
  • the first measured variable here represents a first chemical and / or physical parameter of the gas mixture, in particular a concentration of ethanol.
  • the first sensor element can in this case be used as a gas sensor, in particular as a resistive, capacitive,
  • the second measured variable represents a second chemical and / or physical parameter of the gas mixture, in particular a temperature, a humidity or a pressure, which is different from the first chemical and / or physical parameter.
  • the second sensor element may in this case be designed as a temperature sensor, as a moisture sensor and / or as a pressure sensor.
  • the first and / or the second sensor element is adapted to detect at least two different measured variables, wherein the two different measured variables each represent two different chemical and / or physical parameters of the gas mixture.
  • a time derivation of the detected first measured variables can now be formed and compared with a first predetermined threshold value.
  • a first measured variable acquired at the start time is stored.
  • further first measured variables are recorded, preferably continuously.
  • the measurement is ended when one of the further detected first measured quantities essentially corresponds to the first measured variable stored at the start time, by storing an end time corresponding to the further first measured variable.
  • Minimum period of time compared.
  • the difference corresponds to a quantitative indication of the chemical and / or physical parameter of the gas mixture represented by the first measured variable. If the difference between the predetermined minimum time span or the difference exceeds the predetermined minimum time span, an output signal is generated which signals that the first measured variable representing the first chemical and / or physical parameter of the gas mixture is above a predetermined threshold value.
  • a third measured variable or, in addition, a fourth measured variable is optionally detected, the third measured variable and the fourth measured variable each having a further chemical and / or physical parameter
  • the measurement is terminated when a relative deviation of the amount between the at least one further first Measured variable and the first measured variable detected at the start time smaller than a predetermined threshold, preferably less than 5%, especially
  • FIG. 1 shows schematically a block diagram of a control device.
  • FIG. 2 shows a schematic representation of a gas sensor. In the figure 3 the method is described by means of a flow chart. A graphic
  • FIG. 6 shows a graphical representation of a measurement of a
  • Alcohol consumption of the user shown graphically.
  • a control device 1 is provided, as shown schematically in FIG.
  • This control unit 1 detects a first measured variable K representing an ethanol concentration of a respiratory gas by means of a first sensor element 4 and a further physical and / or chemical parameter of the respiratory gas, for example one
  • control unit 1 additionally has a third measured variable N representing a further physical and / or chemical parameter of the respiratory gas, for example a moisture, by a third sensor element 6 and / or a further physical and / or chemical parameter of the respiratory gas, for example, a print,
  • the measured variables K, M, N and O can, if necessary, be combined in one
  • Memory unit 3 of the device 1 are stored.
  • the first sensor element 4 can be used here as a gas sensor, in particular as a resistive, capacitive, potentiometric and / or amperometric
  • the second sensor element 5 can be configured as a temperature sensor.
  • the third sensor element 6 can in this case be designed as a moisture sensor.
  • the fourth sensor element 7 may in this case be designed as a pressure sensor.
  • one of the sensor elements 4, 5, 6, 7 is set up to detect at least two different measured variables, the two different measured variables each representing two different chemical and / or physical parameters of the gas mixture.
  • Sensor element 5 can form a gas sensor 20, as shown schematically in FIG.
  • the gas sensor additionally has a third sensor element 6 and / or a fourth sensor element 7.
  • the sensor elements 4, 5, 6, 7 are arranged or integrated on the gas sensor.
  • a computing unit 2 carries out the method 100 described below in the control unit 1 and generates an output signal 10 which depends on the detected measured variables K, M, N and O.
  • an acoustic signal generator 8 controls.
  • a further output signal 11 can be generated, which is an optical
  • Signal generator 9 controls.
  • the acoustic signal generator 8 can be used as
  • the optical signal transmitter 9 can be designed as a light emitting diode and / or as a display.
  • a first detection step 101 the first measured variable K is detected, which is a
  • Detection step 102 in which a temperature of the breathing gas is detected as the second measured variable M.
  • a moisture of the respiratory gas can be detected as a third measured variable N and / or a pressure, as a fourth measured variable O.
  • an amount of the time derivative of the detected first measured variable K is compared with the threshold value SWi, and an amount of the time derivative of the detected second measured variable M is compared with the threshold value SW2.
  • the amount of the time derivative of the detected third measured variable N is additionally compared with the threshold value SW3.
  • the amount of the time derivative of the detected fourth measured variable O is additionally compared with the threshold value SW3.
  • Threshold SW 4 compared. If the amount of the time derivative of the first measured variable K is above the first threshold value SWi and if the magnitude of the time derivative of the second measured variable M is above the second threshold value SW2, then in a first setting step 104 a starting time ts and one to the
  • the first determining step 104 takes place only when, in addition, the amount of the time derivation of the third measured variable N to the third threshold value SW3 and / or the amount of the time derivation of the fourth measurement quantity O with the fourth threshold value SW 4 is located can be provided.
  • the first detection step 101 takes place again.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Food Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Urology & Nephrology (AREA)
  • Biophysics (AREA)
  • Hematology (AREA)
  • Combustion & Propulsion (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)
  • Investigating Or Analysing Biological Materials (AREA)
EP18718822.2A 2017-04-25 2018-04-20 Verfahren, steuergerät und vorrichtung zur detektion eines gasförmigen stoffes in einem gasgemisch Withdrawn EP3615932A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017206878.7A DE102017206878A1 (de) 2017-04-25 2017-04-25 Verfahren, Steuergerät und Vorrichtung zur Detektion eines gasförmigen Stoffes in einem Gasgemisch
PCT/EP2018/060131 WO2018197345A1 (de) 2017-04-25 2018-04-20 Verfahren, steuergerät und vorrichtung zur detektion eines gasförmigen stoffes in einem gasgemisch

Publications (1)

Publication Number Publication Date
EP3615932A1 true EP3615932A1 (de) 2020-03-04

Family

ID=62025870

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18718822.2A Withdrawn EP3615932A1 (de) 2017-04-25 2018-04-20 Verfahren, steuergerät und vorrichtung zur detektion eines gasförmigen stoffes in einem gasgemisch

Country Status (6)

Country Link
US (1) US11085915B2 (zh)
EP (1) EP3615932A1 (zh)
JP (1) JP6910468B2 (zh)
CN (1) CN111051882B (zh)
DE (1) DE102017206878A1 (zh)
WO (1) WO2018197345A1 (zh)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610578B2 (de) * 1976-03-13 1978-05-11 Draegerwerk Ag, 2400 Luebeck Verfahren und Anordnung zur Bestimmung des Atemalkoholgehaltes
DE2746078C3 (de) * 1977-10-13 1982-08-12 Sachs Systemtechnik Gmbh, 8720 Schweinfurt Anordnung zur Bestimmung der Konzentration reduzierender Mundgase
US4749553A (en) * 1987-04-08 1988-06-07 Life Loc, Inc. Breath alcohol detector with improved compensation for environmental variables
US5303575A (en) * 1993-06-01 1994-04-19 Alcotech Research Inc. Apparatus and method for conducting an unsupervised blood alcohol content level test
FI102511B (fi) * 1995-06-26 1998-12-31 Instrumentarium Oy Pitoisuusmittaus hengitysilmasta
US20030176803A1 (en) * 2002-03-14 2003-09-18 Edward Gollar Personal breath tester
US20040081582A1 (en) 2002-09-10 2004-04-29 Oxyfresh Worldwide, Inc. Cell phone/breath analyzer
JP2004125433A (ja) * 2002-09-30 2004-04-22 Ngk Spark Plug Co Ltd ガス検出装置
SE531742C2 (sv) * 2007-02-01 2009-07-28 Hoek Instr Ab Interaktiv alkometri
GB2446124B (en) * 2007-02-02 2009-09-09 Laerdal Medical As Device for Monitoring Respiration
JP5531264B2 (ja) * 2010-04-23 2014-06-25 エフアイエス株式会社 呼気成分測定装置
US20140165698A1 (en) * 2012-12-17 2014-06-19 Tanita Corporation Mouthpiece of breath component measuring device, breath component measuring assembly, breath component measuring device, and breath component measuring system
US20140357963A1 (en) 2013-05-31 2014-12-04 Eminent Electronic Technology Corp. Ltd. Portable electronic apparatus
EP2816352B1 (en) * 2013-06-21 2016-12-28 Sensirion AG Concentration measurements with a mobile device
JP6240980B2 (ja) 2013-11-28 2017-12-06 株式会社タニタ ガス濃度計測装置、通知方法及びプログラム
JP6229836B2 (ja) * 2013-12-13 2017-11-15 株式会社タニタ ガス濃度計測装置
DE102015203719A1 (de) 2015-03-03 2016-09-08 Robert Bosch Gmbh Vorrichtung und Verfahren zur Atemgasanalyse und Atemgasanalysegerät
EP3144669A1 (en) 2015-09-17 2017-03-22 IDT Europe GmbH A single gas sensor for sensing different gases and a method using the gas sensor

Also Published As

Publication number Publication date
JP6910468B2 (ja) 2021-07-28
US20200132669A1 (en) 2020-04-30
US11085915B2 (en) 2021-08-10
DE102017206878A1 (de) 2018-10-25
CN111051882A (zh) 2020-04-21
WO2018197345A1 (de) 2018-11-01
CN111051882B (zh) 2021-12-07
JP2020517951A (ja) 2020-06-18

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