CN206974947U - Dangerous atmosphere comprehensive state fingerprint recognition system - Google Patents

Abstract

It the utility model is related to a kind of dangerous atmosphere comprehensive state fingerprint recognition system, mainly solves in the prior art the problem of single-sensor monitoring system does not possess multiplexed detection ability, can not realize complicated atmosphere state recognition and real-time early warning, shortage transmission of wireless signals, the storage of high in the clouds signal, big data analysis and self study.The utility model is by using a kind of dangerous atmosphere comprehensive state fingerprint recognition system, technical scheme including sensing chip, Signal-regulated kinase, signal transmission module, gas circuit control module, temperature control modules and data processing module preferably solves above mentioned problem, available in dangerous atmosphere comprehensive state fingerprint recognition.

Description

Dangerous atmosphere comprehensive state fingerprint recognition system

Technical field

It the utility model is related to a kind of dangerous atmosphere comprehensive state fingerprint recognition system.

Background technology

With the development of the technology such as " man-machine interaction " Intelligent Measurement under virtual environment, multicomponent gas sensor is as smell The function element of collection, conversion, transmission and the processing of Extensive information, have become environmental monitoring, automatically control, ergonomic, The indispensable technical tool in field such as danger early warning and analysis detection.There is big data feature and artificial intelligence device at present Exploitation and integrated, provide favourable tactful support for the design of multifunctional unit sensor-based system of new generation.It is integrated with multidimensional Degree, multicomponent and the dangerous substance detector supported based on big data, with traditional single module sensor (CN 103257156A) compare, there is powerful instant integrated environment analysis ability, network intelligence learning ability, more Flexible extensive usage scenario；The closed lifes such as monitoring tank field, harmful influence warehouse not only can be comprehensively collected and surveyed in real time Produce space in staff's surrounding environment, moreover it is possible to fed back in advance to Surveillance center its sign stress situation and quick and precisely early warning, So as to effectively avoid the generation of the catastrophic event such as the case of explosion of Binhai New Area in Tianjin 812.The comprehensive state identification of integrated form The development and application of sensor, revolutionary alternative functions are single, information dispersion, complicated atmosphere monitoring and warning can not be realized Contemporary sensor device.And pass through integrated device, the means of integrated information, the market application of scale, in cost and function Win comprehensively current commercial apparatus.

Utility model content

Technical problem to be solved in the utility model is that single-sensor monitoring system does not possess multichannel in the prior art Detectivity, it can not realize that complicated atmosphere state recognition stores with real-time early warning, shortage transmission of wireless signals, high in the clouds signal, be big A kind of the problem of data analysis and self study, there is provided new dangerous atmosphere comprehensive state fingerprint recognition system.This method has Multiplexed detection ability, it can realize that complicated atmosphere state recognition stores with real-time early warning, transmission of wireless signals, high in the clouds signal, be big The advantages of data analysis and self study.

To solve the above problems, the technical solution adopted in the utility model is as follows：A kind of dangerous atmosphere comprehensive state fingerprint Identifying system, it is characterised in that the dangerous atmosphere comprehensive state fingerprint recognition system includes sensing chip, signal condition mould Block, signal transmission module, gas circuit control module, temperature control modules and data processing module, sensing chip pass including air-sensitive Sensor；Signal-regulated kinase includes multichannel modulation circuit, amplifier, converter, signal distributor；Signal transmission module includes Signal projector；Data processing module includes computer and high in the clouds；Gas sensor is connected with multichannel modulation circuit respectively, more Channel modulation circuit is also connected with amplifier, and amplifier is also connected with converter, and converter is also connected with signal distributor, signal Distributor is also connected with signal projector, and signal projector is also connected with computer, computer by cable also respectively with high in the clouds, Gas circuit control module, temperature control modules are connected, and gas circuit control module, temperature control modules are also connected with sensing chip respectively.

In above-mentioned technical proposal, it is preferable that signal projector is wireless signal transmitter.

In above-mentioned technical proposal, it is preferable that sensing chip includes at least one gas sensor, each gas sensor point It is not connected with multichannel modulation circuit.

In above-mentioned technical proposal, it is preferable that sensing chip is various dimensions multicomponent sensor chip, is that sandwich is miniature Substrate, including microheater and the interdigital electrode of some tens of pm spacing；Gas sensor on sensing chip, by external connection with Platinum electrode connects, while is grounded by two external circuitses.

In this patent, user carries out dangerous atmosphere comprehensive state fingerprint by dangerous atmosphere comprehensive state fingerprint recognition system Identification, the dangerous atmosphere comprehensive state fingerprint recognition system include sensing chip, Signal-regulated kinase, signal transmission module, Gas circuit control module, temperature control modules and data processing module, sensing chip is by being integrated with the half of several ion dopings The microelectrode of conducting oxide micro-nano array and discrete heating element heater is formed；Temperature control modules are according to sensor array not With the optimum working temperature in complicated atmosphere, control heating resistance element optimizes variation in the range of 25~550 DEG C, it is ensured that The stability and accuracy of output signal；Signal-regulated kinase carries out de-noising, signal amplification and digital-to-analogue to the signal collected and turned Change, then by signal distributor by for the monitoring signals of different component gas via the signal projector in signal transmission module The data processing module being transferred in remote control terminal carries out real-time data analysis；Sensor cavity where sensing chip is matched somebody with somebody There is independent stomata operational module, and each unit in array is adjusted by independent voltage and temperature-control circuit； In complicated hazardous gas environment, after the system switches on power, the finger of target molecule in mixed gas in computer control terminal Order is lower to occur physical-chemical reaction by gas circuit control module and sensing material on substrate, and the chemical signal of each component gas is turned Change and form response electric signal, while temperature control modules rapid Optimum selection optimum working temperature point, to ensure that transducing signal is steady Fixed output；Electric signal is responded after noise reduction gain of the multichannel modulation circuit collection with amplifier, completes digital-to-analogue in the converter Conversion, the response signal extracted by the method for full characteristic parameter extraction in phase space carry out pattern-recognition, realize target sample Identification and classification, sorted signal again by wireless signal transmitter carry out Remote data processing terminal transmission, finally, A series of mixed gas are configured to give sensor array training；Broad spectrum sensor has sound for the various components of complicated gas Should, and the response signal of the sensor unit based on different materials is different, the synthesis response signal of sensor array can Fingerprint coordinate as gas carries out sample collection, and cloud processor compares the fingerprint of various simple and complicated gas by identification Information, initial dangerous judgement is carried out under human assistance, preliminary construction of knowledge base is completed and self-learning capability is perfect.Profit With sol-gal process and hydro-thermal method nano material preparation technology, to the oxide composite Nano material responded extensively with a variety of environment Material is prepared and is modified, and is obtained out sensitive reliable miniature gas-sensitive sensor material and its array, is finally prepared a variety of micro sensings Device.On the same chip, multiple sensor micro elements are constructed in selective subregion, shift and deposit on corresponding device A series of universal oxide gas-sensing materials, realize to being detected while complicated ingredient gas, and the prison to environment various dimensions Survey；Comprehensive analysis has response extensively to multiple ambient parameters but the differentiated oxide material of specific sensitivity is realized to complicated gas The detection of atmosphere state；Integrated temperature and humidity sensor simultaneously, realize that various dimensions detect.

The sensor array for possessing high selectivity for pure gas has very harsh requirement for material in itself, is answering Can be by many restrictions of response range with aspect；Even if finding the material of high responsiveness, in the weak response gas concentration of interference Interference and wrong report can be still produced in the case of being far longer than high response object gas, for the comprehensive treatment capability of complex environment It is relatively weak.In view of comprehensively using pure gas selective sensor in limitation at this stage, in actual applications, to multiple The concrete component of miscellaneous gaseous environment does not have quantification detectability but the sensor with comprehensive recognition capability has more practical valency Value.Learning-oriented " complicated atmosphere comprehensive state fingerprint recognition " provided by the utility model based on broad spectrum type sensor material array System produces response to polytype poisonous or flammable explosive gas, and to the concentration-response relation phase not to the utmost of every kind of gas Together, it is used as one by the characteristics of signals changed to pure gas component on each sensor array block with concentration and detection temperature Kind finger print information is collected, and each sensing block is integrated to the response signal of complicated gas by computerized algorithm Analysis, it becomes possible to various gas componants therein are made and accurately assesses and produces early warning.Finally, this open detection System constantly carries out self study by the data mining platform of artificial intelligence, passes through the detection to a large amount of known component gas and effect Fruit is assessed, and the algorithm of system constantly lifts its accuracy also by constantly improve.Achieve preferable technique effect.

Brief description of the drawings

Fig. 1 is the multiple component intelligent fingerprint recognition system schematic diagram for hazardous gas.

Fig. 2 is polynary micro sensing material integrated chip structural design drawing.

In Fig. 2,1. sensing material integrates substrate；2. Pt electrodes；3. GND electrodes；4. gas sensor；5. sample cell；6. plus Thermal element；7. temperature element；8. Au electrode current measurement systems.

The mixed gas of the different compositions of Fig. 3 produces different response characteristic spectrums on 8 element sensors.

The mixed gas of the different compositions of Fig. 4 produces different response characteristic spectrums on 10 element sensors.

The utility model is further elaborated below by embodiment, but is not limited only to the present embodiment.

Embodiment

Prepare microsensor array by micro-processing method, i.e., on same chip, selective subregion structure Dozens of sensor micro element is built, and shifts and deposit a series of universal oxide gas-sensing materials on corresponding device, is responded The synthesis screening of material regulates and controls to complete by hydro-thermal method.

As shown in figure 1, dangerous atmosphere comprehensive state fingerprint recognition system is by various dimensions sensing chip, multichannel modulation electricity Road, amplifier, digital analog converter, signal distributor, signal projector, and data processing module are formed.Sensor cavity is matched somebody with somebody There is independent stomata operational module, and each unit in array is adjusted by independent voltage and temperature-control circuit. In complicated hazardous gas environment, after the system switches on power, the instruction of target molecule in mixed gas in computer control terminal Physical-chemical reaction is occurred by sensing material in gas circuit control module and substrate down, the chemical signal of each component gas is converted Form response electric signal.The optimum working temperature point of temperature control modules rapid Optimum selection simultaneously, to ensure that transducing signal is stable Output.Electric signal is responded after noise reduction gain of the multichannel modulation circuit collection with amplifier, digital-to-analogue is completed in the converter and turns Change, the response signal extracted by the method for full characteristic parameter extraction in phase space carries out pattern-recognition, so as to realize target sample This identification and classification.Sorted signal carries out the transmission of Remote data processing terminal by wireless signal transmitter again.Most Afterwards, a series of mixed gas are configured to give sensor array training.Because broad spectrum sensor is for various groups of complicated gas Dividing has response, and the response signal of the sensor unit based on different materials is different, therefore the synthesis of sensor array Response signal can carry out sample collection as the fingerprint coordinate of gas.Cloud processor compares various simple and multiple by identification The finger print information of miscellaneous gas, initial dangerous judgement is carried out under human assistance, completes preliminary construction of knowledge base and self-study Habit ability is perfect.

Fig. 2 is the various dimensions multicomponent sensor chip structural representation that the system uses, and based on micro-processing technology, is constructed A kind of miniature substrate of new sandwich, it is integrated with the interdigital electrode (A in Fig. 2) of microheater and some tens of pm spacing； And then plan is built by micro-nano devices such as organic colloid template solution dipping-lossless transfer, plasma etching-epitaxial growths Slightly, the fabricated in situ of ordered oxide micro-nano structure is realized on miniature substrate, builds new gas sensor (B in Fig. 2), The work of element completes heating and temperature calibration by independent resistive platinum wire；Several gas sensors, pass through external connection and platinum electricity Pole connects, while is grounded (C in Fig. 2) by 2 external circuitses.

It is briefly described as follows how the dangerous atmosphere comprehensive state fingerprint recognition system based on multi-sensor chip completes material Material prepares and deposition, and the state for carrying out pernicious gas differentiates.

【Embodiment 1】

Butter of tin presoma and sodium hydroxide are dissolved separately in deionized water solution, sodium hydroxide solution is slowly added Into butter of tin solution, stir 30 minutes, reactant mixture is transferred in ptfe autoclave, and it is Celsius to be heated to 190 At a temperature of degree, 8-12 hours are heated.Product is collected by centrifugation and uses distillation water infiltration, is cleaned by ultrasonic, centrifuges 3 times, be scattered in water-soluble In liquid, it is added drop-wise to above the crossed electrode specific region of micro-processing method preparation and dries.

【Embodiment 2】

By butter of tin presoma, iron chloride presoma, deionized water solution is dissolved separately in sodium hydroxide, by hydrogen-oxygen Change sodium solution to be added slowly in butter of tin and chlorination iron mixed solution, stir 30 minutes, reactant mixture is transferred to polytetrafluoro In ethylene reaction kettle, it is heated under 190 degree celsius temperatures, heats 8-12 hours.Product is collected by centrifugation and uses distillation water infiltration, surpasses Sound cleans, and centrifuges 3 times, is scattered in the aqueous solution, is added drop-wise to above the crossed electrode specific region of micro-processing method preparation and dries.

【Embodiment 3】

By butter of tin presoma, chlorination zinc precursor, deionized water solution is dissolved separately in sodium hydroxide, by hydrogen-oxygen Change sodium solution to be added slowly in butter of tin and zinc chloride mixed solution, stir 30 minutes, reactant mixture is transferred to polytetrafluoro In ethylene reaction kettle, it is heated under 190 degree celsius temperatures, heats 8-12 hours.Product is collected by centrifugation and uses distillation water infiltration, surpasses Sound cleans, and centrifuges 3 times, is scattered in the aqueous solution, is added drop-wise to above the crossed electrode specific region of micro-processing method preparation and dries.

【Embodiment 4】

By butter of tin presoma, inidum chloride presoma, deionized water solution is dissolved separately in sodium hydroxide, by hydrogen-oxygen Change sodium solution to be added slowly in butter of tin and inidum chloride mixed solution, stir 30 minutes, reactant mixture is transferred to polytetrafluoro In ethylene reaction kettle, it is heated under 190 degree celsius temperatures, heats 8-12 hours.Product is collected by centrifugation and uses distillation water infiltration, surpasses Sound cleans, and centrifuges 3 times, is scattered in the aqueous solution, is added drop-wise to above the crossed electrode specific region of micro-processing method preparation and dries.

The material deposition of all 8 independent detection chips of sensor is completed based on above method.As shown in figure 3, will be integrated The fingerprint recognition system of 8 sensing elements is placed in mixed atmosphere to be harmful to containing benzene, hydrogen sulfide and the quasi-representative of carbon monoxide three In the plant area A of gas, low-dimensional and the visualization of parameter are realized by the general-purpose algorithms such as coordinate expansion and curved surface gradual change and means, It can show that the radar map shape that the signal response characteristic peak of tertiary target monitoring gas is formed differs greatly, it is achieved thereby that The assessment of multiple gases state identifies with characteristic fingerprint.

Described embodiment is only the utility model part of the embodiment, and not all embodiments.It is new based on this practicality Embodiment in type, the every other reality that those of ordinary skill in the art are obtained on the premise of creative work is not made Example is applied, belongs to the scope of the utility model protection.

Claims (4)

1. a kind of dangerous atmosphere comprehensive state fingerprint recognition system, it is characterised in that the dangerous atmosphere comprehensive state fingerprint is known Other system includes sensing chip, Signal-regulated kinase, signal transmission module, gas circuit control module, temperature control modules and number According to processing module, sensing chip includes gas sensor；Signal-regulated kinase includes multichannel modulation circuit, amplifier, conversion Device, signal distributor；Signal transmission module includes signal projector；Data processing module includes computer and high in the clouds；Air-sensitive passes Sensor is connected with multichannel modulation circuit respectively, and multichannel modulation circuit is also connected with amplifier, amplifier also with converter phase Even, converter is also connected with signal distributor, and signal distributor is also connected with signal projector, signal projector also with computer It is connected, computer is also connected with high in the clouds, gas circuit control module, temperature control modules respectively by cable, gas circuit control module, temperature Degree control module is also connected with sensing chip respectively.

2. dangerous atmosphere comprehensive state fingerprint recognition system according to claim 1, it is characterised in that signal projector is nothing Line signal projector.

3. dangerous atmosphere comprehensive state fingerprint recognition system according to claim 1, it is characterised in that sensing chip is included extremely A few gas sensor, each gas sensor are connected with multichannel modulation circuit respectively.

4. dangerous atmosphere comprehensive state fingerprint recognition system according to claim 1, it is characterised in that sensing chip is multidimensional Multicomponent sensor chip is spent, be the miniature substrate of sandwich, including the interdigital electrode of microheater and some tens of pm spacing； Gas sensor on sensing chip, it is connected with platinum electrode by external connection, while is grounded by two external circuitses.