WO2017089020A1 - Dispositif et procédé d'analyse de l'air ambiant - Google Patents

Dispositif et procédé d'analyse de l'air ambiant Download PDF

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Publication number
WO2017089020A1
WO2017089020A1 PCT/EP2016/074170 EP2016074170W WO2017089020A1 WO 2017089020 A1 WO2017089020 A1 WO 2017089020A1 EP 2016074170 W EP2016074170 W EP 2016074170W WO 2017089020 A1 WO2017089020 A1 WO 2017089020A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
air
detector
ambient air
air sensor
Prior art date
Application number
PCT/EP2016/074170
Other languages
German (de)
English (en)
Inventor
Dick Scholten
Anna Christina STROHRMANN
Alexander Herrmann
Wolfgang Schmitt
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 WO2017089020A1 publication Critical patent/WO2017089020A1/fr

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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
    • G01N1/2273—Atmospheric sampling
    • 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
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
    • G01N33/0032—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array using two or more different physical functioning modes
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous 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
    • G01N1/2273—Atmospheric sampling
    • G01N2001/2276—Personal monitors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion

Definitions

  • the present invention relates to an apparatus and method for analyzing ambient air.
  • Gas sensors known that allow a quantitative and / or qualitative analysis of certain gases in the ambient air.
  • Document DE 10 2009 046 457 A1 discloses a particle sensor for detecting particles in a gas stream.
  • the particle sensor comprises a membrane, a membrane heater and at least two measuring electrodes arranged on the membrane for measuring the electrical conductivity.
  • Air quality analyzers can be installed in devices that are permanently installed in one location and then set site-specifically to provide readings at regular intervals.
  • mobile, in particular portable devices for air quality analysis are also known.
  • such devices comprise as an energy source an electrical energy store, such as a battery.
  • the present invention discloses an apparatus for the analysis of
  • An apparatus for analyzing ambient air with an air sensor, a detector and a control device.
  • the air sensor is designed to detect a gas or a particle content in the ambient air.
  • the detector is designed to monitor an environmental parameter. Further, the detector is configured to be a monitored parameter
  • the control device is designed to control an activity of the air sensor in dependence on the detector signal.
  • a method of measuring ambient air analysis comprising a step of providing an air sensor.
  • the air sensor is designed to detect a gas or a particle content in the ambient air.
  • the method further includes the steps of monitoring an environmental parameter using a detector and adjusting an activity of the air sensor in response to the monitored environmental parameter.
  • the method may include a step of analyzing the ambient air with the air sensor.
  • a mobile phone with a device according to the invention for the analysis of ambient air is a mobile phone with a device according to the invention for the analysis of ambient air.
  • the present invention is based on the finding that a relatively high energy requirement is required for continuous monitoring of the air quality with an air sensor. Furthermore, the present invention is based on the finding that the air quality of ambient air at otherwise constant environmental parameters do not change or at least only very slowly.
  • the present invention is therefore based on the idea to take this finding into account and provide a possibility in which the
  • the present invention provides for monitoring at least one further environmental parameter for the analysis of ambient air and to adapt an analysis of the ambient air as a function of this further environmental parameter.
  • the further environmental parameter for the analysis of ambient air and to adapt an analysis of the ambient air as a function of this further environmental parameter.
  • Air sensor for monitoring the air quality of the ambient air are disabled until the monitoring of the other environmental parameter indicates a change in the environmental parameter.
  • the probability that a change may have occurred in relation to the previous measurement for analyzing the ambient air and a re-measurement is appropriate increases.
  • Ambient air can significantly reduce energy consumption for air quality monitoring.
  • a mobile, battery-powered device with a device according to the invention for analyzing ambient air over a longer period of time can be used without the energy storage must be recharged.
  • the energy storage must be recharged.
  • the air sensor can be completely or at least partially deactivated by the situation-dependent adjustment of the activity of the air sensor for longer time intervals.
  • the active operating time of the air sensor decreases, which can lead to an increase in the expected life of the air sensor.
  • the ambient parameter monitoring detector comprises at least one of a humidity sensor, a temperature sensor, a pressure sensor, a brightness sensor, a
  • Gas sensor an acceleration sensor, a magnetic field sensor, a
  • Position detector a radio receiver and / or a microphone.
  • the position detector may include, for example, a GPS receiver.
  • a determination of the position by means of evaluation of
  • Radio signals especially for example by triangulation or the like possible. If a change in the respective monitored environmental parameter is detected by such a detector, this either indicates that the device for analyzing the ambient air has been moved, or that the boundary conditions have changed in a stationary device. In both cases, however, a high probability of a change in air quality can be expected so that further analysis of the air quality can be expected
  • the air sensor comprises a particle sensor with a deflectable micromirror.
  • the control device can be designed to adapt or activate / deactivate the deflection of the micromirror as a function of the detector signal. For example, can the micromirror of the particle sensor are deactivated as long as no change in the environment-related parameter monitored by the detector is detected. If, however, a change in the
  • the air sensor comprises a heating device.
  • the air sensor may comprise, for example, a gas sensor with a heating device.
  • the control device can be designed to adapt the heating power of the heating device as a function of the detector signal. For example, the power of the heater may be reduced or the heater may be completely disabled as long as no change in the monitored environmental parameter is detected by the detector. After a change of the supervised
  • Heating device can be activated.
  • the timer may activate the air sensor periodically at first time intervals as long as no change in the monitored environmental parameter is detected by the detector. If a change of the environmental parameter is detected, the timer can change the air sensor to second
  • these second time intervals are shorter than the first time intervals.
  • control device is adapted to adjust the activity of the air sensor in dependence on the detection result of the air sensor.
  • the air sensor in a first Mode are operated with a low power consumption, as long as the detection results of the air sensor are all or at least approximately constant. If, however, by the air sensor, a change in the
  • the air sensor can switch to another mode in which, for example, a higher energy consumption is required.
  • Ambient air includes the step of adjusting the activity of the air sensor to activate or deactivate the air sensor.
  • Figure 1 a schematic representation of an apparatus for the analysis of
  • Figure 2 a schematic representation of a mobile phone with a
  • FIG. 3 shows a schematic representation of a flowchart on which a method according to an embodiment is based.
  • FIG. 1 shows a schematic illustration of an apparatus 1 for analyzing ambient air according to an embodiment.
  • the device 1 comprises an air sensor 10, a detector 20 and a control device 30.
  • the air sensor 10 comprises an air sensor 10, a detector 20 and a control device 30.
  • Air sensor 10 may be, for example, a particle sensor which detects a particle content in the ambient air to be analyzed.
  • Ambient air is the air or gas mixture that surrounds the air sensor 10 and is thus analyzed by the air sensor 10.
  • the air sensor 10 may also be designed to detect one or more predetermined substances, in particular predetermined gases in the ambient air.
  • the detector 20 may be a detector adapted to receive at least one environmental parameter
  • the detector 20 may be a
  • Moisture sensor that is designed to absorb moisture in the
  • Such a change in humidity can be an indication of changing, for example
  • Moisture content in the environment change when a window is opened in a room. In this case, it may also be expected that other parameters in the air quality of the ambient air may also change.
  • Output signal provides.
  • a change in temperature may indicate that the air quality in the ambient air of the ambient air analysis apparatus 1 has changed.
  • additional heating may be an indication that the ambient air analysis device 1 is moving to another location has been.
  • heating leads to a change in air quality at a constant location.
  • the detector 20 may further include a pressure sensor. Even a pressure sensor can give an indication of a change in air quality.
  • the air pressure in that room may change and there may also be a change in air quality parameters.
  • the detector 20 may, for example, also comprise a brightness sensor or optionally also a camera. Also, a change in brightness or possibly one
  • Evaluation of image data of a camera can give an indication of a change of the basic conditions, whereby a change of the air quality is to be expected.
  • the detector 20 may include, for example, an acceleration sensor, a magnetic field sensor or the like. Such sensors may be indicative of movement of the device 1 for analysis of
  • a movement of the device 1 for analyzing ambient air can also be detected by a position detector or the like. If a movement of the device 1 for the analysis of ambient air is detected by the detector 20, a change in the ambient air is to be expected thereby.
  • the detector 20 may also include a radio receiver.
  • the radio receiver can directly receive signals that trigger further actions.
  • a measurement of air quality by the sensor 10 may be activated.
  • the radio receiver can also be any radio receiver.
  • the controller 30 may control the activity of the air sensor 10 in response to the detector signal provided by the detector 20.
  • the control device 30 first receives one or more detector signals, which respectively correspond to at least one environment-related parameter.
  • the control device 30 for this purpose continuously or in predetermined
  • Time intervals compare the detector signals provided by the detector 20 with the corresponding previous detector signals. If a newly received detector signal deviates from a corresponding previous one
  • Controller 30 in this case, for example, close to a change in the environmental conditions of the device 1 for the analysis of ambient air. In this case, so if there is a change in the
  • the air sensor 10 can be activated to perform, for example, a corresponding measurement of the ambient air. If, however, determined by the controller 30 that the
  • the air sensor 10 can be disabled. Alternatively, it is also possible that the air sensor 10 is switched to a standby mode, or is placed in a further operating mode with reduced power consumption. Details for the situation-dependent activation of the air sensor 10 by the
  • Controller 30 will be described in more detail below.
  • the air sensor 10 may include a pump device, which leads an adjustable volume flow of ambient air past a sensor element.
  • a pump device which leads an adjustable volume flow of ambient air past a sensor element.
  • the volumetric flow of the ambient air can, for example, be passed through a light beam, in particular a laser beam.
  • a detector element arranged opposite the light source detects the incident light and provides an output signal corresponding to the incident light
  • Control device 30 the pump power of the pumping device based on the evaluation of the detector signals from the detector 20 are adjusted.
  • the performance of the pumping device can be reduced or the pumping device can be completely deactivated.
  • the pump power of the pumping device can be increased or a deactivated pump can be activated, so that a precise analysis of the air quality can be done in the air flow.
  • the air sensor 10 can also be a sensor device with a
  • micromirrors For example, a focused laser can be deflected by means of such a micromirror device in one or two spatial directions. This makes it possible to particles outside a housing with the
  • Micro-mirror device to detect by means of a scanning laser.
  • the deflection of the micromirror and the emission of the laser light in this case require a large part of the energy required by the device 1. Therefore, for example, by the control device 30, the laser source and the deflection of the micromirrors are disabled, as long as no or no significant change in the detected by the detector 20
  • the micromirror device described can then be completely activated, so that the laser beam is selectively directed into one or two by the micromirror device
  • the air sensor 10 may also include a heater that heats the air sensor 10 to a predetermined temperature.
  • a heating device may comprise a conductor structure with an ohmic resistance.
  • Such heaters for air sensors are used in particular for gas sensors that detect one or more gaseous substances in the ambient air.
  • Heating power of the heater can be reduced as long as no or no significant change in the environmental parameters is detected by the detector 20. Upon detection of a change in the monitored environmental parameters by the detector 20, the heating power of the heater may be increased to match the required
  • Air sensor 10 produce.
  • the air sensor 10 in each case at predetermined time intervals, a measurement for the detection of a gas or a
  • the air sensor 10 can be activated periodically, for example by means of a timer.
  • the time intervals for activating the air sensor 10 can be adjusted by the control device 30.
  • the time intervals for activating the air sensor 10 by the timer in dependence on the Detection result of the detector 20 can be adjusted. If no or no significant change of the environmental parameters is detected by the detector 20, the air sensor 10 may detect a periodic
  • Measurement takes place in first time intervals. If, on the other hand, a change in the environmental parameters is detected by the detector 20, then the time intervals can be shortened so that now the air sensor 10 performs a periodic measurement in second, smaller time intervals. Optionally, a multi-stage adaptation of the time intervals in dependence on the detection result by the detector 20 is possible.
  • the activity of the air sensor 10 is adjusted depending on the detection result of the air sensor 10.
  • the air sensor 10 may first perform a measurement in a first operating mode with reduced power consumption. During this analysis of ambient air by the air sensor 10 in the first operating mode with reduced energy consumption, a change in the
  • the air sensor 10 can then switch to a second operating mode.
  • This second operating mode a more precise and / or extended analysis of ambient air is then possible.
  • This second operating mode may optionally have a higher energy requirement for the air sensor 10. For example, an air sensor 10 with a pumping device described above in a first operating mode by the pumping device to promote a lower air flow. If a change in the measurement results is detected by more than a predetermined threshold value, then the delivery rate of the pumping device can be increased in order to achieve a more precise measurement with a higher level of accuracy in a further operating mode
  • FIG. 2 shows a schematic illustration of a mobile telephone 100 having an apparatus 1 for analyzing ambient air according to an embodiment.
  • the mobile telephone 100 comprises, in addition to the device 1 for the analysis of
  • Input device 110 and a display device 120. Furthermore, the
  • Mobile phone 100 also include an electrical energy storage device 130 such as a battery.
  • the air sensor 10 of the device 1 for analyzing ambient air may, for example, be arranged on an opening 140 of the mobile telephone 100.
  • FIG. 3 shows a schematic representation of a flow chart on which a method for analyzing ambient air according to one embodiment is based.
  • the method comprises in particular the steps of providing S1 of an air sensor 10.
  • This air sensor 10 may be designed to detect a gas or a particle content in the ambient air.
  • the method comprises a step S2 for monitoring an environment-specific parameter by means of a detector 20. It may be in monitoring of any environment-specific
  • step S3 the
  • step S4 an analysis of the ambient air with the air sensor 10.
  • the step S3 for adjusting the activity of the air sensor, in particular an activation or deactivation of the air sensor include.
  • adjusting the activity of the air sensor may also include changing the air sensor 10 to a predetermined operating mode.
  • the method may also include any further steps that have been carried out in connection with the corresponding device for the analysis of ambient air.
  • the present invention relates to a situational analysis of ambient air.
  • the activity of an air sensor for measuring a gas or a particle content in the ambient air depending on the situation based on at least one other

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  • Engineering & Computer Science (AREA)
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Abstract

L'invention concerne une analyse relative à la situation de la qualité de l'air ambiant. A cet effet, l'activité d'un capteur d'air destiné à mesurer un gaz ou une teneur en particules de l'air ambiant peut être adaptée en fonction de la situation sur la base d'au moins un autre paramètre relatif à l'environnement.
PCT/EP2016/074170 2015-11-26 2016-10-10 Dispositif et procédé d'analyse de l'air ambiant WO2017089020A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015223389.8A DE102015223389A1 (de) 2015-11-26 2015-11-26 Vorrichtung und Verfahren zur Analyse von Umgebungsluft
DE102015223389.8 2015-11-26

Publications (1)

Publication Number Publication Date
WO2017089020A1 true WO2017089020A1 (fr) 2017-06-01

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PCT/EP2016/074170 WO2017089020A1 (fr) 2015-11-26 2016-10-10 Dispositif et procédé d'analyse de l'air ambiant

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DE (1) DE102015223389A1 (fr)
TW (1) TW201719138A (fr)
WO (1) WO2017089020A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017209474A1 (de) * 2017-06-06 2018-12-06 Robert Bosch Gmbh Verfahren und Vorrichtung zum Messen einer Luftqualität
CN108872036A (zh) * 2018-05-15 2018-11-23 山东嘉誉测试科技有限公司 一种智能环境检测仪
DE102020206952B3 (de) 2020-06-03 2021-10-14 Robert Bosch Gesellschaft mit beschränkter Haftung Sensorsystem zur kontinuierlichen Detektion von Fluiden und/oder Partikeln und Verfahren zum Betreiben des Sensorsystems

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009046457A1 (de) 2009-11-06 2011-05-12 Robert Bosch Gmbh Partikelsensor
EP2677314A2 (fr) * 2012-06-21 2013-12-25 Sensirion AG Capteur chimique dans un dispositif électronique portable
EP2762881A1 (fr) * 2013-01-31 2014-08-06 Sensirion Holding AG Dispositif de capteur portable avec un capteur de gaz et un mode faible puissance
US20140238100A1 (en) * 2013-02-27 2014-08-28 Qualcomm Incorporated Method for calibration of sensors embedded or wirelessly connected to a mobile device
WO2015034159A1 (fr) * 2013-09-09 2015-03-12 (주)소하테크 Module de capteur de gaz de faible puissance utilisant un terminal mobile et procédé de mesure de gaz à l'aide de celui-ci
DE102014204625A1 (de) * 2014-03-13 2015-09-17 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ermitteln eines Kohlendioxidgehaltes einer Umgebungsluft

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009046457A1 (de) 2009-11-06 2011-05-12 Robert Bosch Gmbh Partikelsensor
EP2677314A2 (fr) * 2012-06-21 2013-12-25 Sensirion AG Capteur chimique dans un dispositif électronique portable
EP2762881A1 (fr) * 2013-01-31 2014-08-06 Sensirion Holding AG Dispositif de capteur portable avec un capteur de gaz et un mode faible puissance
US20140238100A1 (en) * 2013-02-27 2014-08-28 Qualcomm Incorporated Method for calibration of sensors embedded or wirelessly connected to a mobile device
WO2015034159A1 (fr) * 2013-09-09 2015-03-12 (주)소하테크 Module de capteur de gaz de faible puissance utilisant un terminal mobile et procédé de mesure de gaz à l'aide de celui-ci
DE102014204625A1 (de) * 2014-03-13 2015-09-17 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ermitteln eines Kohlendioxidgehaltes einer Umgebungsluft

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DE102015223389A1 (de) 2017-06-01

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