CN208092005U - Based on the on-line measuring device that stench monitoring electronic nose is remotely countercharged in environment - Google Patents
Based on the on-line measuring device that stench monitoring electronic nose is remotely countercharged in environment Download PDFInfo
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- CN208092005U CN208092005U CN201820567806.2U CN201820567806U CN208092005U CN 208092005 U CN208092005 U CN 208092005U CN 201820567806 U CN201820567806 U CN 201820567806U CN 208092005 U CN208092005 U CN 208092005U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The utility model is related to a kind of based on the on-line measuring device that stench monitoring electronic nose is remotely countercharged in environment, including：Cloud platform, on-line monitoring platform and countercharge device；Cloud platform is virtual industrial personal computer, and the detection data and working condition of on-line monitoring platform and the online electronic nose detector of device real-time exhibition of countercharging send cloud platform and instruct；Monitor the structure composition of platform and device of countercharging on-line：Shell and fan, sensor gas chamber, heating plate；Air cleaner, filter, air pump, embedded controller, data collector, power supply and air conservation switch etc.；The utility model can check working condition, sensor drift early warning, long-range progress sensor test and the calibration function of stench electronic nose with real time remote, it is convenient and efficient, man power and material is reduced, it is easy to operate, high degree of automation improves electronic nose accurate testing degree.
Description
Technical field
The utility model is related to a kind of based on the on-line measuring device remotely countercharged of stench monitoring electronic nose in environment, can be with
Remote service electronic nose realizes automatic calibration function, improves electronic nose accurate testing degree.
Background technology
Every energy loss evil human habitat, generation make us insufferable smell or make one to generate the gas of unhappy feeling
Body is generally called stench, is one of universally acknowledged seven big harm.Odorant distribution is very wide, and coverage is big, it has also become great Jia Jian
The threat of health.Odorant is mostly from industry such as chemistry, pharmacy, paper processed, process hides, fertilizer, food, castings.
Electronic nose is a kind of smell fingerprint detection method, and the collection of illustrative plates shown by testing result is otherwise known as smell fingerprint image
Spectrum is the Newly Sprouted Things that fast development is got up nearly ten years, mainly utilizes smell sensor, data processing equipment and analysis
The device of software composition, it is analysis object with gas, and the olfactory system by simulating people is captured and detected to smell to be checked, because
This this smell finger print detection device is known as electronic nose by image, and this smell fingerprinting detection technique is otherwise known as electronic nose skill
Art.The online stink detector of electronic nose can continuously, in real time monitor specific within a few houres, several days even time of several months
The stench situation of position, and analyze the influence brought to neighboring area.
Currently, the domestic stench electronic nose on-line computing model based on electronic nose is answered in conceptual phase apart from environment monitoring
It is still immature with popularizing.Mainly by the following：(1) sensor is sensitiveer to working environment, stench electronic nose on-line checking
When instrument is mainly installed outside room, winter cold and summer are exposed to the sun and are affected to the accuracy of equipment.(2) mode identification method needs
Traditional mode identification method such as principal component analysis, least square method, discriminant analysis etc. is improved using linear process, and
The response mechanism of sensor is more complicated, and therefore, it is difficult to obtain accurate model.Artificial neural network is as a kind of realization
The method of complex nonlinear mapping has preferable recognition effect relative to traditional recognition method, but is needed training sample
It measures bigger, inconvenience is brought to sampling.(3) sensor and polluted gas Long Term Contact, lead to sensor signal drift, accurately
Degree reduces, and needs often to test and calibrate.Therefore, it is necessary to develop a kind of long-range countercharge device, raising stench electronic nose is gone to exist
The qualitative and quantitative analysis ability of line detector.
Invention content
The purpose of this utility model is to provide a kind of based on the online inspection that stench monitoring electronic nose is remotely countercharged in environment
Device is surveyed, which can solve the shortcomings of the prior art, and real time remote checks the working condition of stench electronic nose, sensing
Device drift early warning, long-range progress sensor test and calibration function, it is convenient and efficient, man power and material is reduced, it is easy to operate, automatically
Change degree is high.
It is provided by the utility model a kind of based on the on-line measuring device packet that stench monitoring electronic nose is remotely countercharged in environment
It includes：Cloud platform（Cloud Server platform）, on-line monitoring platform and countercharge device composition.Cloud platform is virtual industrial personal computer, can be with
Send and receive monitoring data and computer command.Monitor platform and the countercharge online electronic nose detector of device real-time exhibition on-line
Detection data and working condition, to cloud platform send instruct.On-line monitoring platform and the composed structure for device of countercharging are：
Shell and fan, the guard box for placing entire building block and holding babinet inner air convection.
Gas chamber, for loads detect the metal oxide sensor of odour concentration, hydrogen sulfide sensor, ammonia gas sensor,
PID sensor, temperature sensor, heating plate.
Air cleaner, the activated carbon adsorption for filling the substances such as polluted gas, dust, moisture in removal surrounding air
Agent.
Filter, the filter cotton for filling moisture and dust in removal surrounding air.
Standard gas gas bomb is calibrated, standard gas is calibrated for providing stench electronic nose.
Air pump is used for the pumping air-breathing of entire air-channel system.
Embedded controller is used for the control of entire on-line measuring device, the circuit board of signal processing and transmission.
Data collector, for connecting data transmission between circuit board embedded controller and cloud platform.
Power supply and air conservation switch, for providing 24V voltages for entire circuit system.And the cleaning road of connection gas storehouse
Air inlet, test road air inlet, calibration standard gas road gas outlet and circuit interface；
The cleaning road, test road, calibration standard gas road are connected with gas chamber by 2/2-way solenoid valve, solenoid valve with it is embedding
Enter formula controller circuit board to connect by conducting wire.Embedded controller circuit board connects sensor, air pump, power supply by conducting wire.
Air pump is connect by polytetrafluoroethylene (PTFE) tracheae with gas chamber, and embedded controller circuit board passes through 232 strings with data acquisition controller
Mouth line or USB line are connected.
Cloud platform and data collector by being wirelessly connected, between there is mutual data communication protocol, data collector to adopt
Cloud platform is sent to by data traffic card after collection data.
The temperature sensor of the utility model, heating plate and fan constitute temperature control unit, and temperature sensor is for real
When monitor gas chamber temperature, heating plate heats gas chamber, and fan keeps control cabinet inner air convection.
Embedded controller described in the utility model is by sensor assembly, signal circuit, signal storage circuit, letter
Number transmission circuit composition, embedded controller mainly complete the control of the accessories such as pattern-recognition, data processing, pump valve, data transmission
To data acquisition controller.
The main data acquisition of data acquisition controller described in the utility model is sent to cloud platform；And cloud is put down
The instruction that platform is sent is transmitted to electronic nose embedded controller, and control fitting work changes electronic nose device parameter, switching electronics
Nose operating mode etc..
Control described in the utility model based on the on-line measuring device that stench monitoring electronic nose is remotely countercharged in environment
Method includes mainly：
1）Remote Diagnosis System：The operating status of real-time monitoring equipment, the diagnosis of progress sensor drift degree, activated carbon are net
Gas effect diagnoses.
2）Automatic calibration function：By diagnosis, judges sensor drift, if having drifted about, need to pick up calibration.This
When sending device close test road, open cleaning road and standard gas calibrate road, to sensor carry out standard gas calibrate automatically.
3）Automatic sampling：Corresponding threshold value is arranged in platform, is more than threshold value, and cloud platform sends sample command, and equipment can be certainly
It is dynamic to keep sample, and smell and distinguish lab analysis, and according to《Emission standard for odor pollutants》(GB14554-93) exceeded place is carried out
It penalizes.
The utility model is more sensitive to detection environment for sensor, and mainly the temperature and humidity of environment is to sensor
The problem of response signal is affected proposes that new design, equipment gas circuit are divided into cleaning road, test road and calibration standard gas road three
Road air inlet, this three tunnel is mutual indepedent, can be controlled by flush type circuit system, when testing foul gas odour concentration,
One test period includes cleaning road and test road, cleans between road and test road and mutually switches, a upper test period it is clear
The response for washing road response and next test road is made comparisons, and the response characteristic value of sensor is finally calculated, according to sensing
Device response characteristic value array calculates odour concentration value, show that odour concentration value is accurate than traditional dependence response computation model
Higher is spent, and from the influence of environment temperature and humidity on sensor.
The utility model is proved by many experiments, is finally successfully found a kind of standard gas mix proportion scheme.Since gas chamber has
Seven sensors, seven sensors of detection calibration theoretically need seven kinds of gas with various to be calibrated, take time and effort.By multiple
Experiment finds that four kinds of metal oxide sensors of isobutene pair and PID sensor respond well, hydrogen sulfide gas and gaseous ammonia
Gas is respectively used to calibration hydrogen sulfide sensor and ammonia gas sensor, and hydrogen sulfide, ammonia and VOC are not interfered between each other.
Therefore, mixing standard gas can be matched in a gas cylinder, seven sensors in entire gas chamber can be calibrated.
The utility model countercharge device is placed in control cabinet jointly with electronic nose detector, the advantage is that：Whole system
It is controlled by circuit board embedded system, it is small, save space.The work shape of electronic nose can be monitored in real time by monitoring platform
State, working environment；The accuracy of sensor is may determine that by the parameter index that electronic nose transmits and by line platform
Remote auto calibration is carried out to equipment；It is exceeded to keep sample automatically；By the way that instruction can be sent in line platform, electronic nose equipment is carried out
Circuit switching, modification parameter.High degree of automation saves the maintenance costs such as manpower and financial resources, improves electronic nose device data
Accuracy.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model composed structure.
Fig. 2 is the flow diagram that electronic nose is remotely countercharged.
Fig. 3 is automatic calibration procedure flow chart.
Fig. 4 is the circuit controling drawing of embedded Control circuit board.
Specific implementation mode
The utility model is described in detail below in conjunction with attached drawing.
Referring to Fig.1, countercharge mechanism described in the utility model and stench electronic nose are placed on the high control of integrated level together
In case.It includes the cleaning road air inlet 1 for connecting gas chamber, test road air inlet 2, gas outlet 3, circuit interface 4；For removing division ring
The activated carbon 5 of the substances such as polluted gas, dust, moisture in the air of border；Remove the filter cotton 6 of moisture and dust in surrounding air；
Gas chamber 7 for loading sensor；Circuit board embedded controller 8 for the control of whole device, signal processing and transmission；
Standard gas gas bomb 9 for providing the calibration of stench electronic nose（Fill isobutene, hydrogen sulfide, ammonia gas mixture）；For entire gas circuit
The air pump 10 of the pumping air-breathing of system；For connect data transmission between circuit board embedded controller and cloud platform without line number
According to acquisition（Control）Device 11（HL-RTU-01, Hua Lan Environmental Protection Technology Co., Ltd of Shenzhen）；24V is provided for entire circuit system
The power supply 12 and air conservation switch 13 of voltage；Cross-ventilated fan 14 is provided for whole system；First metal oxide passes
Sensor a (MQ2, Zhengzhou Wei Sheng Electronic Technology Co., Ltd), the second metal oxide sensor b (MQ4, the bright Sheng electronic section in Zhengzhou
Skill Co., Ltd), third metal oxide sensor c (MQ5, Zhengzhou Wei Sheng Electronic Technology Co., Ltd), the 4th metal oxidation
Object sensor d (MQ135, Zhengzhou Wei Sheng Electronic Technology Co., Ltd) four metal oxide sensors, hydrogen sulfide sensor e
(MQ136, Zhengzhou Wei Sheng Electronic Technology Co., Ltd), ammonia gas sensor f (MQ137, Zhengzhou Wei Sheng Electronic Technology Co., Ltd),
(DS18B20, the Shenzhen day triumphant electronics of generation have by PID sensor g (PID-A1, Alphasense companies of Britain), temperature sensor h
Limit company) composition sensor array 15；Control solenoid valve (3V206NCB, the limited public affairs of Guangzhou Ya De visitor's pneumatic element of gas circuit
Department) 16；(AEROTECH Tai Keaier A-1H, Tai Keaier science and technology is limited for the pressure reducing valve for keeping cylinder outlet gas pressure constant
Company) 17；Protection box enclosure 18 for placing above-mentioned building block.
Cleaning road described in the utility model, test road, standard gas calibration road are connected with gas chamber by solenoid valve 16, solenoid valve
16 are connect with circuit board embedded controller 8 by conducting wire.Circuit board embedded controller 8 connects sensor, gas by conducting wire
Pump 10, power supply 12.Four metal oxide sensors, hydrogen sulfide sensor, ammonia gas sensor, PID sensor, temperature sensors
Sensor array 15 be screwed on gas chamber 7.Air pump 10 is connect by polytetrafluoroethylene (PTFE) tracheae with gas chamber 7, circuit
Plate 8 is connected with data acquisition controller by 232 Serial Port Lines or USB line.
Cloud platform and data collector by being wirelessly connected, between there is mutual data communication protocol, data collector to adopt
Cloud platform is sent to by data traffic card after collection data.
Stench monitor building block is mainly online：Activated carbon, filter cotton, gas chamber, embedded controller, air pump, 24V
Power supply, be spaced apart, four kinds of metal oxide sensors, hydrogen sulfide sensor, ammonia gas sensor, PID sensor, temperature sensor,
Heating plate, fan and the conducting wire and signal wire that connect these spare and accessory parts.
Countercharge mechanism described in the utility model by control component, circuit board embedded controller mainly by (independently being ground
Hair), data acquisition controller, cloud platform, monitoring platform composition.
System gas circuit shares three, cleaning road, test road, calibration road.Cleaning road is mainly used for sensor and provides cleaning sky
Gas, test road provide test gas for sensor, and standard gas bottle provides calibration gas for sensor.
Implement such as Fig. 2, control method includes the steps that：
Sensor signal is sent to data control in real time by circuit board embedded system, and data acquisition controller receives number
According to, and data are transmitted to Cloud Server platform by internal 3G nets, cloud platform is mainly acquired signal data, calculates simultaneously
It is sent to on-line monitoring platform.It monitors platform on-line and shows odor concentration, each target gas content, real time data and history number
According to concentration gradient variation, can export the data of specific time, and the dimension of recording equipment as needed in the monitoring region section time
Shield and maintenance, alarm condition, generate report.
Monitoring platform can observe the sensor response of sensor transmissions by cloud platform, the parameters such as temperature value, to
It may determine that the working condition of stench electronic nose.Monitoring platform can by clean road sensor transmissions come response judge biography
Whether sensor drifts about, once drift, monitoring platform can send out sensor drift pre-warning signal.
As shown in figure 3, automatic calibration procedure (may be set to be manual calibration) is opened, monitoring platform sends automatic calibration
Instruction, is transmitted to embedded control system, embedded control system receives instruction, controls solenoid valve by data collector
Work, to close cleaning road and test road, calibration road is opened.Standard gas is passed into air inlet chamber with sensor contacts by conduit
Sensor can send signal and be transmitted to cloud platform by data collector, judge whether sensor drifts about by sensor signal, if
It does not drift about, automatic calibration procedure is closed, stench electronic nose normal work；If drifting about, in monitoring platform by calibrating journey
Sequence changes sensor signal parameter so that the signal value of sensor reaches normal value, and stench value is the letter by sensor array
What number value was calculated by mathematical algorithm, but since foul gas is intricate, a kind of mathematical model is not to various
Gas is all suitable for.It is compared by the signal value and the stench value at scene of sensor, by mathematical algorithm in cloud platform, is changed
Mathematical model coefficient, acts on electronic nose, to improve the counting accuracy of stench electronic nose.
The circuit controling drawing of embedded controller is as shown in figure 4, embedded controller module includes chip
STM32L051C8T6, D3 light emitting diode, 1K Ω resistance R5,10K Ω R12 resistance.Controller chip STM32L051C8T6's
Pin 43 is in series with resistance R5 and light emitting diode D3, and other end connects 3.3V power supplys.Controller chip
The other end of the pin 44 of STM32L051C8T6 and resistance R12, resistance R12 are grounded.Controller chip STM32L051C8T6's
The cleaning way solenoid valve drive module that pin 2 arranges needle with 1*2 is connect；The pin 3 and 1*2 of controller chip STM32L051C8T6
Arrange the test way solenoid valve drive module connection of needle；The calibration of the pin 4 of controller chip STM32L051C8T6 and 1*2 row's needles
Way solenoid valve drive module connects；The monolithic processor resetting module of the pin 7 of controller chip STM32L051C8T6 and 1*4 row's needles
Connection；The heating plate module that the pin 11 of controller chip STM32L051C8T6 arranges needle with 1*2 is connect；Controller chip
Pin 13, pin 14, pin 15, pin 16, pin 17, pin 18, the pin 19 of STM32L051C8T6 arranges needle with 1*4 respectively
(PID-A1 is passed by 4th metal oxide sensor d, ammonia gas sensor f, third metal oxide sensor c, PID sensor g
Sensor), hydrogen sulfide sensor e, the second metal oxide sensor b, the first metal oxide sensor a drive modules connection；
The temperature sensor h modules that 29 pins 29 of controller chip STM32L051C8T6 arrange needle with 1*3 are connect；Controller chip
The USB module that pin 30, the pin 31 of STM32L051C8T6 arranges needle with 1*4 is connect；Controller chip STM32L051C8T6's
The program download module that pin 34, pin 37 arrange needle with 1*4 is connect；The pin 45 and 1*2 of controller chip STM32L051C8T6
Arrange the pump drive module connection of needle；The blower fan module that the pin 46 of controller chip STM32L051C8T6 arranges needle with 1*4 is connect.
In conclusion the utility model is provided based on the on-line checking dress that stench monitoring electronic nose is remotely countercharged in environment
It sets, the utility model embodiment implements on-line monitoring function on the basis of realizing Wireless remote control, to environmental gas, real
Sensor test and calibration, and main odour concentration in monitoring in real time and posting field are now carried out whenever and wherever possible, can effectively be added
Environment monitoring force degree in strong odor pollution key area, realizes remote real-time monitoring, and can realize automatic when odour concentration is exceeded
It alarms to monitoring center.
Claims (6)
1. a kind of based on the on-line measuring device that stench monitoring electronic nose is remotely countercharged in environment, it is characterised in that including：Yun Ping
Platform, on-line monitoring platform and countercharge device；Cloud platform is virtual industrial personal computer, for sending and receiving monitoring data and computer
Order；Monitor the detection data and working condition of platform and the online electronic nose detector of device real-time exhibition of countercharging on-line, it is right
Cloud platform sends instruction；On-line monitoring platform and the composed structure for device of countercharging are：
Shell and fan, the guard box for placing entire building block and holding case inner air convection；
Gas chamber, metal oxide sensor, hydrogen sulfide sensor, ammonia gas sensor, PID for loading detection odour concentration are passed
Sensor, temperature sensor, heating plate；
Air cleaner, the acticarbon for filling polluted gas, dust, each substance of moisture in removal surrounding air；
Filter, the filter cotton for filling moisture and dust in removal surrounding air；
Standard gas gas bomb is calibrated, standard gas is calibrated for providing stench electronic nose；
Air pump is used for the pumping air-breathing of entire air-channel system；
Embedded controller is used for the control of entire on-line measuring device, the circuit board of signal processing and transmission；
Data collector, for connecting data transmission between circuit board embedded controller and cloud platform；
Power supply and air conservation switch, for providing 24V voltages for entire circuit system；And the cleaning road air inlet of connection gas storehouse
Mouth, test road air inlet, calibration standard gas road gas outlet and circuit interface.
2. the on-line measuring device according to claim 1 remotely countercharged, it is characterised in that the cleaning road, test
Road, calibration standard gas road are connected with gas chamber by 2/2-way solenoid valve, and solenoid valve passes through conducting wire with embedded controller circuit board
Connection；Embedded controller circuit board connects sensor, air pump, power supply by conducting wire；Air pump by polytetrafluoroethylene (PTFE) tracheae with
Gas chamber connects, and embedded controller circuit board is connected with data collector by 232 Serial Port Lines or USB line.
3. the on-line measuring device according to claim 1 remotely countercharged, it is characterised in that cloud platform and data collector
By be wirelessly connected, between have mutual data communication protocol, sent by data traffic card after data collector gathered data
To cloud platform.
4. the on-line measuring device according to claim 1 remotely countercharged, it is characterised in that the embedded controller
It is made of sensor assembly, signal circuit, signal storage circuit, signal sending circuit, for completing pattern-recognition, data
Processing, the control of pump valve accessory, data transmission to data collector.
5. the on-line measuring device according to claim 1 remotely countercharged, it is characterised in that the embedded controller
Module includes controller chip STM32L051C8T6, D3 light emitting diode, 1K Ω resistance R5,10K Ω R12 resistance；Controller core
The pin 43 of piece STM32L051C8T6 is in series with resistance R5 and light emitting diode D3, and other end connects 3.3V power supplys；Control
The other end of the pin 44 of device chip STM32L051C8T6 and resistance R12, resistance R12 are grounded；Controller chip
The cleaning way solenoid valve drive module that the pin 2 of STM32L051C8T6 arranges needle with 1*2 is connect；Controller chip
The test way solenoid valve drive module that the pin 3 of STM32L051C8T6 arranges needle with 1*2 is connect；Controller chip
The calibration way solenoid valve drive module that the pin 4 of STM32L051C8T6 arranges needle with 1*2 is connect；Controller chip
The monolithic processor resetting module that the pin 7 of STM32L051C8T6 arranges needle with 1*4 is connect；Controller chip STM32L051C8T6's draws
The heating plate module that foot 11 arranges needle with 1*2 is connect；The pin 13 of controller chip STM32L051C8T6, pin 14, pin 15,
Pin 16, pin 17, pin 18, pin 19 arrange the 4th metal oxide sensor of needle, ammonia gas sensor, third with 1*4 respectively
Metal oxide sensor, PID sensor, hydrogen sulfide sensor, the second metal oxide sensor, the first metal oxide pass
Sensor drive module connects；The temperature sensor module of 29 pin 29 and 1*3 row's needles of controller chip STM32L051C8T6 connects
It connects；
The USB module that pin 30, the pin 31 of controller chip STM32L051C8T6 arranges needle with 1*4 is connect；Controller chip
The program download module that pin 34, the pin 37 of STM32L051C8T6 arranges needle with 1*4 is connect；Controller chip
The pump drive module that the pin 45 of STM32L051C8T6 arranges needle with 1*2 is connect；The pin of controller chip STM32L051C8T6
46 blower fan modules that needle is arranged with 1*4 are connect.
6. the on-line measuring device according to claim 1 remotely countercharged, it is characterised in that the activated carbon, filtering
Cotton, embedded controller, air pump, 24V power supplys, is spaced apart, four kinds of metal oxide sensors, hydrogen sulfide sensor, ammonias gas chamber
Sensor, PID sensor, temperature sensor, heating plate, fan and connect these components conducting wire and signal line group at online
Stench monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820567806.2U CN208092005U (en) | 2018-04-20 | 2018-04-20 | Based on the on-line measuring device that stench monitoring electronic nose is remotely countercharged in environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820567806.2U CN208092005U (en) | 2018-04-20 | 2018-04-20 | Based on the on-line measuring device that stench monitoring electronic nose is remotely countercharged in environment |
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| Publication Number | Publication Date |
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| CN208092005U true CN208092005U (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820567806.2U Expired - Fee Related CN208092005U (en) | 2018-04-20 | 2018-04-20 | Based on the on-line measuring device that stench monitoring electronic nose is remotely countercharged in environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362840A (en) * | 2018-04-20 | 2018-08-03 | 天津澜禹笙环保科技有限公司 | Online detection device based on environment malodor monitoring electronic nose remote reverse control |
| CN112782363A (en) * | 2020-12-29 | 2021-05-11 | 深圳市利拓光电有限公司 | Electronic nose system for gas detection |
-
2018
- 2018-04-20 CN CN201820567806.2U patent/CN208092005U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362840A (en) * | 2018-04-20 | 2018-08-03 | 天津澜禹笙环保科技有限公司 | Online detection device based on environment malodor monitoring electronic nose remote reverse control |
| CN112782363A (en) * | 2020-12-29 | 2021-05-11 | 深圳市利拓光电有限公司 | Electronic nose system for gas detection |
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Granted publication date: 20181113 Termination date: 20200420 |