JPH01500459A - Device for detecting the content of various harmful substances in gas streams - Google Patents
Device for detecting the content of various harmful substances in gas streamsInfo
- Publication number
- JPH01500459A JPH01500459A JP62504882A JP50488287A JPH01500459A JP H01500459 A JPH01500459 A JP H01500459A JP 62504882 A JP62504882 A JP 62504882A JP 50488287 A JP50488287 A JP 50488287A JP H01500459 A JPH01500459 A JP H01500459A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- detecting
- sensor
- harmful substances
- content
- 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.)
- Pending
Links
- 239000000126 substance Substances 0.000 title claims description 6
- 238000012937 correction Methods 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 6
- 239000000383 hazardous chemical Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000009610 hypersensitivity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- G01N33/0026—General constructional details of gas analysers, e.g. portable test equipment using an alternating circulation of another gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0085—Smell or pollution preventing arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Atmospheric Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Air-Conditioning For Vehicles (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 ガス流の種々の有害物質含量を検知するだめの装置本発明は、１つ以上の有害物 質過敏半導体ガスセンサーを使用して、有利に自動車室内又は作業保護室への供 給のためにガス流の種々の有害物質含Ｒを検知するための装置に関する。[Detailed description of the invention] The present invention provides an apparatus for detecting the content of various hazardous substances in a gas stream. Using material-sensitive semiconductor gas sensors, it is possible to advantageously supply the interior of a motor vehicle or a work protection room. The present invention relates to a device for detecting the content of various harmful substances in a gas stream for supply.
新鮮な突気−／循環空気フラップの制御のため及び付加的に自動車室及び作業保 護室中へのフィルター装置の装着又は脱着のために有害動員過敏ガスセンサーを 使用することは公知である。更に、該半導体ガスセンサーはその測定法及びその 製法によｐ必然的に生じる許容差七有しておｐ１該許容差はこの使用目的に関し て認容できない程大きいということも公知である。For the control of fresh air/circulation air flaps and additionally for vehicle compartment and work security. A hazardous mobilization sensitive gas sensor is installed to install or remove the filter device in the protective room. Its use is known. Furthermore, the semiconductor gas sensor has its measurement method and its There are tolerances that inevitably arise due to the manufacturing method, and these tolerances are related to this intended use. It is also known that the amount of water used is unacceptably large.
従って、これらのセンサーの感度及び安定性の改良のために多数の提案がなされ たが、成功していない。Therefore, numerous proposals have been made to improve the sensitivity and stability of these sensors. However, it was not successful.
例えば自動車中に有害物質過敏ガスセンサーを使用する際、洩々の運転速度、種 々の温度、種々の空中湿度等に対するスス過敏性がなお著しく大きい。For example, when using a hazardous substance sensitive gas sensor in a car, it is important to The soot sensitivity to various temperatures, various atmospheric humidity, etc. is still extremely high.
この欠点を排除するために、評１ｏすべきガス流七父互にガスセンサーにあてる ことを本発明において提案する。センサーを外部空気と室内空気との間の分岐位 置に設置し、この除数秒間の範囲内である切換えにより内部空気と外部空気の品 質を実質的に常時比較する。In order to eliminate this drawback, the gas flow should be applied to the gas sensor at the same time. This is proposed in the present invention. Place the sensor at the branch point between outside air and indoor air. The internal air and external air components can be changed by switching within this divisor seconds. Compare quality virtually all the time.
この目的のために、切換装置をガスセンサーに相互耐直する。該ガスセンサー及 び切換装置は新鮮空気−／循環空気フラップの上に配置されていてよい。ガスセ ンサーの出力シグナルは新鮮空気−／循環空気フラップの制御に慟らく。For this purpose, the switching device is made mutually compatible with the gas sensor. The gas sensor and The switching device can be arranged above the fresh air/recirculated air flap. Gasse The output signal of the sensor is suitable for controlling the fresh air/recirculated air flap.
半導体センサー、特に二酸化錫ベースのセンサーは温度及び湿度の変動に対して スス過敏性である。部分的には、種々の湿度により、その変動は７０％までの測 定値のずれが生じる程人である。温度変動における影響も同様に大である。温度 感知器を介して温度補正を行なうことも公知である。湿度は技術的に相対湿度と してのみ測定することかできる。しかしながら、この測定値は異なる空気温度に おいて全く異なる絶対湿度に導ひくので、相対湿度の尺度は湿度経過の補正のた めに直接適用することはできない。一般にこのようなことは計算器を介してのみ 解決されるので、この補正は非常に煩雑でおる。Semiconductor sensors, especially tin dioxide-based sensors, are sensitive to temperature and humidity fluctuations. I am sensitive to soot. In part, due to different humidity, the variation can be up to 70%. People are so different that there is a deviation in the fixed value. The effect on temperature fluctuations is equally large. temperature It is also known to carry out temperature correction via sensors. Humidity is technically referred to as relative humidity. It can only be measured by However, this measurement does not change at different air temperatures. The relative humidity scale is used to compensate for the humidity curve, as this leads to completely different absolute humidity. It cannot be applied directly to Generally this can only be done via a calculator. This correction is very complicated.
本発明においては、特にガス流の温度及び湿度の補正を実施するために、半導体 センサーの測定値を温度及び湿度からなる平均値から決定される、マイクロプロ セッサ−からの補正ファクターで補正すること全提案する。温度値及び湿度値を 二次元マトリックスに固定し、こうして４００値を有する場をわずか４に容量の マイクロプロセッサ−中に蓄積することができ、このことは十分に正確な補正を 実施するために完全に十分である。In the present invention, semiconductor A microprocessor that determines the measured value of the sensor from the average value consisting of temperature and humidity. We suggest that all corrections be made using correction factors from the sensor. Temperature and humidity values fixed in a two-dimensional matrix, thus reducing the field with 400 values to only 4 with a capacity of can be stored in the microprocessor, which allows for sufficiently accurate corrections. Completely sufficient for implementation.
次に、本発明の実施例を図面につきよシ詳細に説明する、すなわち： 第１図はガス流の種々の有害物質を検知するための装置を有する自動車の概略図 であり、第２図はがス流の＠度変動及び湿度変動の補正のための回路装置である 。Embodiments of the invention will now be described in detail with reference to the drawings, namely: FIG. 1 is a schematic diagram of a motor vehicle with a device for detecting various harmful substances in the gas stream; , and Figure 2 shows a circuit device for correcting temperature fluctuations and humidity fluctuations in gas flow. .
第１図中には自動車が１で、かつ自動車空気供給が２で示されている。有害物質 過敏ガスセンサー４は外部突気と室同空気との間の分岐位置に配置され、この際 このガスセンサーは切換装置を備えている。切戻装置ｎ備えるガスセンサー４は 循環空気フラップ３上に配置されていてよい。In FIG. 1, the vehicle is designated 1 and the vehicle air supply is designated 2. Hazardous substance The sensitive gas sensor 4 is arranged at a branch position between the external sudden air and the indoor air, and at this time This gas sensor is equipped with a switching device. The gas sensor 4 equipped with a cutback device n is It may be arranged on the circulating air flap 3.
この実施形によシ、有害物質不純物の絶対的な量を知るために必要なセンサーを 固定した測定位置に配置する除に、このセンサーを著しい検査及び調節費用をか けて配置する必要はもはやなく、今やよシ良いか、又はよシ悪い空気の差異を確 実に評価することができ、かつ最終的に出力シグナルを新鮮空気−／循環空気フ ラップの制御のために付与することができる簡単なセンサー全使用するための可 能性が与えられる。This embodiment also includes the sensors necessary to know the absolute amount of harmful impurities. Apart from being placed in a fixed measuring position, this sensor does not incur significant testing and adjustment costs. There is no longer any need to place the can be evaluated in detail and finally convert the output signal into a fresh air/recirculated air flow. A simple sensor that can be attached for control of the wrap is available for full use. ability is given.
こうして、この実施形の根本思想は、２種の空気流の品質を機械的な切換装ｋを 用いて有害物質過敏がスセンサーによりに続的に比較評価することである。Thus, the basic idea of this embodiment is to mechanically switch between the two types of airflow quality. It is used to continuously compare and evaluate hypersensitivity to harmful substances using a sensor.
第２図による実施形においてはガスセンサーを１１で、温度感知器ｔ−１２で、 湿度センサーを１３で示す。In the embodiment according to FIG. 2, the gas sensor is 11, the temperature sensor t-12, The humidity sensor is indicated by 13.
３つのセンサー１１．１２．１３は一緒にその値をマイクロプロセッサ−１４に 与える。The three sensors 11, 12, and 13 together send their values to the microprocessor-14. give.
マイクロプロセッサ−１４はその温度値及び湿度値に関して、その都度相応する 補正値を捜し出し、これでガスセンサー値を補正する。The microprocessor 14 determines the respective temperature and humidity values accordingly. Find the correction value and use it to correct the gas sensor value.
これによシ＠度及び湿度に依存する出力シグナルが得られる。This gives a temperature and humidity dependent output signal.
国際調査報告international search report
Claims (5)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863626277 DE3626277A1 (en) | 1986-08-02 | 1986-08-02 | Method for acting on gas sensors which are sensitive to noxious substances, for motor vehicles and protective working cabins |
| DE3626277.3 | 1986-08-02 | ||
| DE3640734.8 | 1986-11-28 | ||
| DE19863640734 DE3640734A1 (en) | 1986-11-28 | 1986-11-28 | Sensor with electronic humidity and temperature correction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01500459A true JPH01500459A (en) | 1989-02-16 |
Family
ID=25846197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62504882A Pending JPH01500459A (en) | 1986-08-02 | 1987-07-29 | Device for detecting the content of various harmful substances in gas streams |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4875406A (en) |
| EP (1) | EP0275301B1 (en) |
| JP (1) | JPH01500459A (en) |
| AT (1) | ATE71727T1 (en) |
| DE (1) | DE3776125D1 (en) |
| WO (1) | WO1988001057A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237327A (en) * | 2014-08-07 | 2014-12-24 | 富军 | Device and method for detecting in-vehicle air quality |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0308455B1 (en) * | 1987-04-02 | 1993-01-27 | Eftag Entstaubungs- Und Fördertechnik Ag | Circuit arrangement for evaluating a signal produced by a semiconductor sensor |
| DE3907049A1 (en) * | 1989-03-04 | 1990-09-13 | Bayerische Motoren Werke Ag | VEHICLE WITH A SECURITY SYSTEM |
| IT1249197B (en) * | 1991-04-29 | 1995-02-20 | Eurogiada Srl | ATMOSPHERIC IMPURITIES DETECTION DEVICE |
| FR2694394B1 (en) * | 1992-07-30 | 1994-09-30 | Valeo Thermique Habitacle | Device for measuring the parameters of an air flow introduced into a passenger compartment of a motor vehicle. |
| US5955854A (en) * | 1992-09-29 | 1999-09-21 | Prospects Corporation | Power driven venting of a vehicle |
| US5402075A (en) * | 1992-09-29 | 1995-03-28 | Prospects Corporation | Capacitive moisture sensor |
| US5486138A (en) * | 1994-07-20 | 1996-01-23 | Sorensen; Jens O. | Air-pollution reduction method and system for the interior of an automobile |
| FR2785855B1 (en) | 1998-11-18 | 2001-03-30 | Valeo Climatisation | MOTOR VEHICLE HEATING AND / OR AIR CONDITIONING DEVICE INCLUDING A POLLUTION SENSOR |
| KR20020043866A (en) * | 2000-12-04 | 2002-06-12 | 류정열 | Unitary type of ambient and air quality sensor |
| US20030129936A1 (en) * | 2002-01-08 | 2003-07-10 | Shaikh Mohammad Ali | Room ventilating apparatus |
| US7081263B2 (en) | 2002-05-01 | 2006-07-25 | Courtesy Products, Llc | Disposable brew basket for electric coffee maker |
| DE102006018956B4 (en) * | 2006-04-24 | 2024-11-21 | Robert Bosch Gmbh | Procedure for diagnosing a particulate filter |
| US10131200B2 (en) * | 2011-11-30 | 2018-11-20 | Ford Global Technologies, Llc | Vehicular climate sensor in recirculation path |
| CN103558065B (en) * | 2013-11-06 | 2015-07-22 | 安徽江淮汽车股份有限公司 | Interior air sampling method and interior air sampling system of electric car |
| US10112618B2 (en) | 2015-10-11 | 2018-10-30 | Rimalu Technologies, Inc. | Traffic pollution indicator |
| US10887722B2 (en) | 2016-03-16 | 2021-01-05 | Airlib Inc. | Traffic pollution mapper |
| CN107234936A (en) * | 2016-03-28 | 2017-10-10 | 福特环球技术公司 | Air pollution reaction system in vehicle |
| JP6857802B2 (en) * | 2016-12-28 | 2021-04-14 | パナソニックＩｐマネジメント株式会社 | Ventilation fan |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3041591A (en) * | 1960-03-11 | 1962-06-26 | Nat Lead Co | Contaminant gas detector |
| JPS5934525B2 (en) * | 1980-06-17 | 1984-08-23 | 株式会社デンソー | Automotive air conditioning control device |
| JPS5943327B2 (en) * | 1980-12-02 | 1984-10-22 | 株式会社デンソー | Vehicle air conditioning control device |
| US4478049A (en) * | 1981-09-15 | 1984-10-23 | Nippondenso Co., Ltd. | Air-conditioning control for a motor vehicle |
| JPS58191622A (en) * | 1982-05-04 | 1983-11-08 | Aisin Seiki Co Ltd | Air purifier on vehicle |
| JPS5948216A (en) * | 1982-09-10 | 1984-03-19 | Nippon Soken Inc | Controller of air conditioner utilizing atmosphere sensor |
| DE3304324C3 (en) * | 1983-02-09 | 1996-08-14 | Bayerische Motoren Werke Ag | Method for controlling a ventilation device for the interior of a motor vehicle and device for carrying out this method |
| DE3423848A1 (en) * | 1984-06-28 | 1986-01-09 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Sensor-guided control for protective work cabins or motor vehicle cabins |
-
1987
- 1987-07-29 DE DE8787905202T patent/DE3776125D1/en not_active Expired - Lifetime
- 1987-07-29 AT AT87905202T patent/ATE71727T1/en not_active IP Right Cessation
- 1987-07-29 EP EP87905202A patent/EP0275301B1/en not_active Expired - Lifetime
- 1987-07-29 WO PCT/EP1987/000411 patent/WO1988001057A2/en not_active Ceased
- 1987-07-29 US US07/177,549 patent/US4875406A/en not_active Expired - Lifetime
- 1987-07-29 JP JP62504882A patent/JPH01500459A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237327A (en) * | 2014-08-07 | 2014-12-24 | 富军 | Device and method for detecting in-vehicle air quality |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0275301A1 (en) | 1988-07-27 |
| EP0275301B1 (en) | 1992-01-15 |
| WO1988001057A2 (en) | 1988-02-11 |
| DE3776125D1 (en) | 1992-02-27 |
| ATE71727T1 (en) | 1992-02-15 |
| WO1988001057A3 (en) | 1988-04-07 |
| US4875406A (en) | 1989-10-24 |
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