CN2612948Y - Monitor of body air and such environmental parameters - Google Patents
Monitor of body air and such environmental parameters Download PDFInfo
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- CN2612948Y CN2612948Y CN 03234276 CN03234276U CN2612948Y CN 2612948 Y CN2612948 Y CN 2612948Y CN 03234276 CN03234276 CN 03234276 CN 03234276 U CN03234276 U CN 03234276U CN 2612948 Y CN2612948 Y CN 2612948Y
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Abstract
Disclosed is an monitoring alarm device of environmental parameters of air in the car comprising a sensor, an amplifying circuit unit, a threshold value comparing circuit unit or a singlechip, and audible-visual alarm units. The monitoring alarm device detects the pertinency factor in car using the senor, and enlarges the minute electric signal generated by the sensor, compares with the preset critical value of the air and environmental parameters indexes, the monitoring alarm device makes the audible-visual alarm or starts up the air regenerating device while exceeding the guard. The device can detect the environmental parameters of air in the car such as harmful constituents and oxygen concentration, humidity, temperature and the like, sends out alarm once the environmental parameters indexes in the car reach the critical condition, reminds that the driver adopts the corresponding measurement to improve the air and environmental quality in the car, thereby the device guarantees a better environment in the car, the life safety and the physical healthy of the driver, reduces maximally the occurrence ratio of road traffic accidents, reduces greatly personnel casualty and the loss on property.
Description
Technical field
The utility model belongs to environment measuring and technology of instrument and meter field, is specifically related to a kind of alarm that environment parameters such as air in the car are monitored.
Technical background
In vehicle traveling process, engine combustion, Human Physiology effect and upholstery material can produce multiple harmful gas.Generally, vehicle, all can close vehicle window and travel owing to multiple reason at highway or when the rainy day travels, make these harmful gases in the narrow and small confined space of automobile, can rise to warning concentration rapidly, having a strong impact on automobile driver and passenger's healthy and traffic safety.Show the waste gas that motor car engine produces in the course of the work according to the study, and the contaminated air that the gases such as carbon dioxide that produce of human pilot itself form can seriously cause driver's driving fatigue in pilothouse, thereby cause traffic hazard.According to another analysis, the objectionable impurities in the vehicle air composition mainly comprises: formaldehyde, benzene, CO, CO
2, NO
XDeng, oxygen content and temperature and humidity are all influential to human body in addition, and these several materials and environmental factor are maximum to the harm of traffic safety and human body.And prior art does not also have a kind of effective means that these objectionable impuritiess are monitored and handled, and is a urgent problem.
Summary of the invention
The deficiency that the utility model exists at prior art, environment parameter monitoring alarm instruments such as the interior air of a kind of car have been developed, be installed in automotive interior, can be to airborne objectionable constituent and oxygen concentration in the car, humidity, environment parameters such as temperature etc. detect, in case environment inside car parameter index value reaches critical conditions, then give the alarm, remind driver and crew to take appropriate measures and improve air and environmental quality in the car, thereby guarantee to have in the car environment preferably, guarantee driver and crew's life security and healthy, greatly reduce the road traffic accident incidence, significantly reduce casualties and property loss.
Total design of the present utility model is: at first utilize sensor that related factors in the car is detected, and the small electrical signals that sensor produces amplified, compare with predefined air and environment parameter index critical value, when exceeding warning, then carry out sound and light alarm, or start air regenerating device simultaneously.
Technical solution is as follows:
Environment parameter monitoring alarm instruments such as the interior air of car, comprise that sensor, amplifier circuit unit, threshold ratio are than circuit unit harmony, light alarm unit, the curtage signal of sensor inserts the input end of secondary amplifying circuit, the output of amplifying circuit connects the input end of threshold value comparator circuit, and the output of threshold value comparator circuit connects sound, light alarm unit again.Small and weak voltage that the sensor (as CO sensor, temperature, humidity sensor) that it at first detects the environment inside car parameter is exported or current signal carry out secondary and amplify, through after amplification again with the threshold value of every kind of parameter (herein, threshold value is described the parameter index critical value that in the environment inside car human body is made a difference with voltage or current value) compare, in case surpass threshold range, illustrate that then this parameter has begun influence has been taken place human body in the environment, just carry out alarm by sound, light crossing-signal this moment.
For the reliability, the intelligent degree that improve detecting instrument and be convenient to the function expansion, can adopt the A/D change-over circuit to connect single-chip microcomputer substitution threshold comparator circuit unit, single-chip microcomputer connects nixie display by IO interface.The value of gathering each sensor through A/D conversion back by single-chip microcomputer after signal amplifies, value with various parameters shows with nixie display on the one hand, on the other hand with the threshold value of every kind of parameter (herein, threshold value is described the parameter index critical value that in the environment inside car human body is made a difference with voltage or current value) compare, in case surpass threshold range, illustrate that then this parameter has begun influence has been taken place human body in the environment, just carry out alarm by sound, light crossing-signal this moment.
Further, in order in time automatically to improve the environment inside car quality, single-chip microcomputer also can connect peripheral control circuit by I/O, and control circuit connects air regenerating device (as the on-board air conditioner system etc.) switch of automobile.The control air regenerating device is taken a breath, and is reduced to below the threshold value up to the desired value with environment parameter, closes air interchanger more automatically.
The advantage of this monitoring alarm instrument is:
1, can be to CO in the environment inside car, CO
2, NO
x, environment parameter index etc. was carried out online detection in multiple harmful substances such as formaldehyde and benzene and concentration of oxygen and temperature and humidity were waited for bus, and had higher sensitivity and reaction velocity;
2. employing modularized design method, each module are all selected ripe circuit arrangement for use, carry out organic integration, form the overall circuit scheme of this detector, have very high reliability;
3. circuit design is succinct, and volume is little, is convenient to install.
Description of drawings
Fig. 1 is the circuit block diagram of a kind of simple implementation of the utility model;
Fig. 2 is the circuit theory diagrams of Fig. 1.
Fig. 3 is the circuit block diagram of a kind of implementation preferably of the utility model;
Fig. 4 is the circuit block diagram of a kind of best implementation of the utility model;
Fig. 5 is the circuit theory diagrams of Fig. 4.
Embodiment
Referring to Fig. 1, a kind of simple implementations of environment parameter monitoring alarm instrument such as the interior air of car are to be made of than circuit unit, sound, light crossing-signal and digital display circuit sensor, amplifier circuit unit, threshold ratio.Sensor is according to the kind of survey parameter and correspondence is provided with a plurality of.Their annexation is: the output of the input end amplifying circuit of the curtage signal access secondary amplifying circuit of sensor connects the input end of threshold value comparator circuit, connect digital display circuit again after another output termination Automatic Cycle commutation circuit, the output of threshold value comparator circuit connects sound, light crossing-signal.
Its circuit is realized referring to Fig. 2: the input end of the output termination secondary amplifying circuit of environment inside car parameter detecting sensor.The secondary amplifying circuit is made up of operational amplifier OP07.The emitter follower input end that the output termination of secondary amplifying circuit is made up of OP07.On the one hand, the emitter follower output terminal links to each other with the input end S1-S10 of multiway analog switch AD7506 (according to what of sensor).The Automatic Cycle commutation circuit that decade counter that pulse producer that AD7506 is made of 555 timers and 74LS90 constitute etc. is formed is controlled.The output of AD7506 connects the input end that 31/2 LED of 9801 types shows general digital voltage gauge outfit.On the other hand, the anode of emitter follower output termination voltage comparator LM393A is compared with the threshold voltage of the negative terminal that is connected on LM393A.The control end of LM393A output termination multi-way switch 4066 is controlled the acoustic-optic alarm of being made up of speech chip KD9300 and LED.
Circuit working process shown in Figure 2: at first the secondary amplifying circuit that the small and weak voltage or the current signal of environment inside car parameter detecting sensor output carried out being made up of OP07 amplifies, and follows via the emitter follower of OP07 composition again.The output of emitter follower enters multiway analog switch AD7506 on the one hand.The Automatic Cycle commutation circuit that decade counter that pulse producer that AD7506 is made of 555 timers and 74LS90 constitute etc. is formed is controlled, and shows to select different sensors.Display part (31/2 LED of 9801 types shows general digital voltage gauge outfit) is made up of ICL7107 and charactron.On the other hand, through the sensor signal after amplifying compare with the threshold voltage of the negative terminal that is connected on LM393A (threshold value is described the parameter index critical value that in the environment inside car human body is made a difference with voltage or current value) herein.In case surpass threshold range, illustrate that then this parameter has begun influence has been taken place human body in the environment inside car, this moment, the LM393A output terminal was controlled multi-way switch 4066, thereby the warning device that control is made up of speech chip KD9300 and LED carries out sound and light alarm.
Referring to Fig. 3, a kind of implementations preferably of environment parameter monitoring alarm instrument such as the interior air of car are to be made of sensor, amplifier circuit unit, A/D change-over circuit, single-chip microcomputer harmony, light crossing-signal.Sensor also is according to the kind of survey parameter and correspondence is provided with a plurality of.Their annexation is: the output of the input end amplifying circuit of the curtage signal access secondary amplifying circuit of sensor connects the input end of A/D change-over circuit, taps into single-chip microcomputer again, and the output of single-chip microcomputer connects sound, light crossing-signal and nixie display respectively.
Referring to Fig. 4, a kind of best implementations of environment parameter monitoring alarm instrument such as the interior air of car are the control circuits of air regenerating device on having increased car on the basis of structure shown in Figure 3 again, control circuit links to each other with single-chip microcomputer by the I/O interface, the switch of air regenerating device on the control end control car.
The physical circuit of the scheme that Fig. 4 is shown is realized referring to Fig. 5: the signal output part of sensor connects the input end of secondary amplifying circuit, the secondary amplifying circuit is made up of operational amplifier OP07, its output terminal connects the S1-S16 (according to what of sensor) of multiway analog switch AD7506, and AD7506 is controlled by the P1.0-P1.3 of single-chip microcomputer.The output of multiway analog switch AD7506 connects the input end of A/D converter ADC0804, and ADC0804 imports signal by output port D0-D7 the P0.0-P0.7 of single-chip microcomputer 8051 again.The P1.4 of single-chip microcomputer connects light alarming device, and P1.5 meets solid-state relay SSR, connects the automobile air regenerating device then, and the P1.6 pin of single-chip microcomputer connects phonetic alarm.In addition, the P3.1 of single-chip microcomputer is connected nixie display with the P3.0 pin, and this nixie display is made of one group of code translator 74LS164 and charactron.
This circuit working process: at first the small and weak voltage of the sensor output that the environment inside car parameter is detected or amplifying circuit that current signal carries out being made up of operational amplifier OP07 carry out two-stage and amplify, and the emitter follower through the OP07 formation enters multiway analog switch AD7506 again.AD7506 is controlled by the P1.0-P1.3 of single-chip microcomputer, carries out analog/digital conversion among the A/D converter ADC0804 to select different sensor signals to enter.Single-chip microcomputer 8051 reads sensor signal after the A/D conversion by P0.0-P0.7, on the one hand the index of various compositions is shown (controlling one group of 74LS164 and charactron shows by P3.1 and P3.0) with nixie display, on the other hand with the threshold value of every kind of composition (herein, threshold value is described the parameter index critical value that in the environment inside car human body is made a difference with voltage or current value, and be stored in the single-chip microcomputer) compare, in case surpass threshold range, this parameter has begun influence has been taken place human body in then illustrating in the environment, this moment is just by sound (P1.6), light (P1.4) alarm carries out alarm, opening the automobile air regenerating device by P1.5 control SSR (solid-state relay) then takes a breath, up to index is reduced to below the threshold value, controls SSR again and close air interchanger.
This monitoring alarm instrument adopts modularized design method, and the circuit unit of each module is all selected ripe circuit arrangement or integrated circuit for use, and the utility model is that they have been carried out effective combination, realizes the function that this instrument is required.
Claims (6)
1, environment parameter monitoring alarm instrument such as air in the car, it is characterized in that comprising that sensor, amplifier circuit unit, threshold ratio are than circuit unit harmony, light alarm unit, the curtage signal of sensor inserts the input end of secondary amplifying circuit, the output of amplifying circuit connects the input end of threshold value comparator circuit, and the output of threshold value comparator circuit connects sound, light alarm unit again.
2, environment parameter monitoring alarm instrument such as air in the car according to claim 1 is characterized in that adopting the A/D change-over circuit to connect single-chip microcomputer substitution threshold comparator circuit unit.
3, environment parameter monitoring alarm instrument such as air in the car according to claim 1 connects nixie display after the output terminal that it is characterized in that the secondary amplifying circuit connects an Automatic Cycle commutation circuit again.
4, environment parameter monitoring alarm instrument such as air in the car according to claim 2 is characterized in that single-chip microcomputer passes through IO interface and directly connects nixie display.
5, environment parameter monitoring alarm instrument such as air in the car according to claim 2 is characterized in that single-chip microcomputer connects peripheral control circuit by IO interface, and control circuit connects the air regenerating device switch of automobile.
6, environment parameter monitoring alarm instrument such as air in the car according to claim 1 and 2 is characterized in that sensor can be according to survey environment parameter kind and correspondence is provided with a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234276 CN2612948Y (en) | 2003-04-29 | 2003-04-29 | Monitor of body air and such environmental parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234276 CN2612948Y (en) | 2003-04-29 | 2003-04-29 | Monitor of body air and such environmental parameters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612948Y true CN2612948Y (en) | 2004-04-21 |
Family
ID=34166102
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03234276 Expired - Fee Related CN2612948Y (en) | 2003-04-29 | 2003-04-29 | Monitor of body air and such environmental parameters |
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| CN (1) | CN2612948Y (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007104240A1 (en) * | 2006-03-10 | 2007-09-20 | Sui-Chun Law | An environmental monitoring apparatus and method thereof |
| CN100465637C (en) * | 2006-09-14 | 2009-03-04 | 清华大学 | Wireless monitoring device for oxygen content in essential safety energy-saving type coke-oven gas |
| CN101915597A (en) * | 2010-07-13 | 2010-12-15 | 中国计量学院 | Indoor environment monitoring system |
| CN102350977A (en) * | 2011-07-18 | 2012-02-15 | 浙江工业大学 | Car inside oxygen-deficiency monitoring system |
| CN102582560A (en) * | 2012-02-22 | 2012-07-18 | 苏州卡泰克电子科技有限公司 | Self-adaptive infrared system for monitoring internal environment of automobile |
| CN102722964A (en) * | 2012-06-29 | 2012-10-10 | 孙新凯 | Vehicle-mounted carbon monoxide detection alarm device |
| CN102745077A (en) * | 2012-06-29 | 2012-10-24 | 徐下兵 | Safety device of motor vehicle |
| CN101718770B (en) * | 2009-11-24 | 2013-01-02 | 深圳市赛纳威环境仪器有限公司 | Automobile air quality monitoring and purifying system |
| CN103017301A (en) * | 2011-09-20 | 2013-04-03 | 王峰 | Automatic air renewal system and automatic air renewal method of automobile air conditioner |
| CN103129489A (en) * | 2011-11-30 | 2013-06-05 | 苏州卡泰克电子科技有限公司 | Infrared vehicle interior environmental monitoring system based on controlled area network (CAN) / local interconnect network (LIN) bus |
| CN103144512A (en) * | 2013-03-06 | 2013-06-12 | 三一汽车制造有限公司 | Vehicle as well as method and device for controlling air exchange of vehicle |
| CN103198623A (en) * | 2013-03-21 | 2013-07-10 | 无锡市崇安区科技创业服务中心 | Vehicle-mounted formaldehyde alarm device |
| CN103713115A (en) * | 2013-12-20 | 2014-04-09 | 重庆五洲龙新能源汽车有限公司 | Method and device for safely detecting get-on oil on electric car |
| CN104002641A (en) * | 2014-05-22 | 2014-08-27 | 苏州卫生职业技术学院 | Automatic air exhaust ventilation system of automobile |
| CN104340119A (en) * | 2014-10-24 | 2015-02-11 | 苏州佑瑞检测技术有限公司 | Real-time monitoring method for in-car pollutant concentration for car with projecting apparatus |
| CN105185032A (en) * | 2015-07-10 | 2015-12-23 | 北京光华纺织集团有限公司 | Intelligent wearable apparatus and alarm method |
| CN105216578A (en) * | 2015-09-08 | 2016-01-06 | 罗文凤 | Safety automation air conditioning control device in car |
| CN105225411A (en) * | 2015-09-06 | 2016-01-06 | 深圳市乐莱萌科技有限公司 | A kind of vehicle-mounted human body alarm method and device |
| CN106652356A (en) * | 2016-12-22 | 2017-05-10 | 深圳市元征科技股份有限公司 | Driver fatigue determining method and device |
| CN106945488A (en) * | 2017-03-31 | 2017-07-14 | 中科华瑞（北京）汽车环保科技有限公司 | A kind of in-car air detection method and its application |
| CN107804262A (en) * | 2017-10-25 | 2018-03-16 | 奇瑞汽车股份有限公司 | Control method for vehicle, device and computer-readable recording medium |
| CN108008079A (en) * | 2017-12-12 | 2018-05-08 | 成都电科海立科技有限公司 | A kind of vehicle-mounted detecting system and method |
| CN109630451A (en) * | 2018-12-06 | 2019-04-16 | 中山风之源电器实业有限公司 | A kind of fan motor controller for vehicle-mounted ventilator |
-
2003
- 2003-04-29 CN CN 03234276 patent/CN2612948Y/en not_active Expired - Fee Related
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007104240A1 (en) * | 2006-03-10 | 2007-09-20 | Sui-Chun Law | An environmental monitoring apparatus and method thereof |
| CN100465637C (en) * | 2006-09-14 | 2009-03-04 | 清华大学 | Wireless monitoring device for oxygen content in essential safety energy-saving type coke-oven gas |
| CN101718770B (en) * | 2009-11-24 | 2013-01-02 | 深圳市赛纳威环境仪器有限公司 | Automobile air quality monitoring and purifying system |
| CN101915597A (en) * | 2010-07-13 | 2010-12-15 | 中国计量学院 | Indoor environment monitoring system |
| CN102350977A (en) * | 2011-07-18 | 2012-02-15 | 浙江工业大学 | Car inside oxygen-deficiency monitoring system |
| CN103017301B (en) * | 2011-09-20 | 2016-01-20 | 北斗卫星应用科技(上海)有限公司 | A kind of automatic ventilation system for automotive air conditioner and automatic air-exchanging method |
| CN103017301A (en) * | 2011-09-20 | 2013-04-03 | 王峰 | Automatic air renewal system and automatic air renewal method of automobile air conditioner |
| CN103129489A (en) * | 2011-11-30 | 2013-06-05 | 苏州卡泰克电子科技有限公司 | Infrared vehicle interior environmental monitoring system based on controlled area network (CAN) / local interconnect network (LIN) bus |
| CN102582560A (en) * | 2012-02-22 | 2012-07-18 | 苏州卡泰克电子科技有限公司 | Self-adaptive infrared system for monitoring internal environment of automobile |
| CN102745077A (en) * | 2012-06-29 | 2012-10-24 | 徐下兵 | Safety device of motor vehicle |
| CN102722964A (en) * | 2012-06-29 | 2012-10-10 | 孙新凯 | Vehicle-mounted carbon monoxide detection alarm device |
| CN103144512A (en) * | 2013-03-06 | 2013-06-12 | 三一汽车制造有限公司 | Vehicle as well as method and device for controlling air exchange of vehicle |
| CN103144512B (en) * | 2013-03-06 | 2016-01-20 | 三一汽车制造有限公司 | A kind of vehicle and vehicle scavenge control method and device |
| CN103198623A (en) * | 2013-03-21 | 2013-07-10 | 无锡市崇安区科技创业服务中心 | Vehicle-mounted formaldehyde alarm device |
| CN103713115A (en) * | 2013-12-20 | 2014-04-09 | 重庆五洲龙新能源汽车有限公司 | Method and device for safely detecting get-on oil on electric car |
| CN104002641A (en) * | 2014-05-22 | 2014-08-27 | 苏州卫生职业技术学院 | Automatic air exhaust ventilation system of automobile |
| CN104340119A (en) * | 2014-10-24 | 2015-02-11 | 苏州佑瑞检测技术有限公司 | Real-time monitoring method for in-car pollutant concentration for car with projecting apparatus |
| CN105185032A (en) * | 2015-07-10 | 2015-12-23 | 北京光华纺织集团有限公司 | Intelligent wearable apparatus and alarm method |
| CN105225411A (en) * | 2015-09-06 | 2016-01-06 | 深圳市乐莱萌科技有限公司 | A kind of vehicle-mounted human body alarm method and device |
| CN105216578A (en) * | 2015-09-08 | 2016-01-06 | 罗文凤 | Safety automation air conditioning control device in car |
| CN106652356A (en) * | 2016-12-22 | 2017-05-10 | 深圳市元征科技股份有限公司 | Driver fatigue determining method and device |
| CN106652356B (en) * | 2016-12-22 | 2019-03-05 | 深圳市元征科技股份有限公司 | Driver fatigue judgment method and device |
| CN106945488A (en) * | 2017-03-31 | 2017-07-14 | 中科华瑞（北京）汽车环保科技有限公司 | A kind of in-car air detection method and its application |
| CN107804262A (en) * | 2017-10-25 | 2018-03-16 | 奇瑞汽车股份有限公司 | Control method for vehicle, device and computer-readable recording medium |
| CN108008079A (en) * | 2017-12-12 | 2018-05-08 | 成都电科海立科技有限公司 | A kind of vehicle-mounted detecting system and method |
| CN109630451A (en) * | 2018-12-06 | 2019-04-16 | 中山风之源电器实业有限公司 | A kind of fan motor controller for vehicle-mounted ventilator |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |