CN107421991A - A kind of residues of pesticides and gas detection method, detecting system - Google Patents
A kind of residues of pesticides and gas detection method, detecting system Download PDFInfo
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- CN107421991A CN107421991A CN201710443110.9A CN201710443110A CN107421991A CN 107421991 A CN107421991 A CN 107421991A CN 201710443110 A CN201710443110 A CN 201710443110A CN 107421991 A CN107421991 A CN 107421991A
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Abstract
The present invention, which discloses a kind of residues of pesticides and gas detection method, detecting system, detection method, to be included：Monitor the electric signal of at least one under test gas；Electric signal is respectively converted into respective mathematical model；Mathematical model after conversion is matched with pre-establishing the mathematical model of multiple object gas, obtains matching result；According to matching result, the testing result of under test gas is obtained.Detecting system includes：Gas sensor, for monitoring the electric signal of at least one of current environment under test gas；Electric signal data-converting block, electric signal is respectively converted into respective mathematical model；Processor, the mathematical model after conversion is matched with pre-establishing the mathematical model of multiple object gas, obtain matching result；According to matching result, the testing result of under test gas is obtained.Above-mentioned detection method and detecting system can detect a variety of unknown gas simultaneously, can lift the accuracy rate of testing result by converting electrical signals to mathematical model, while improve detection rates.
Description
Technical field
The present invention relates to gas detection technology, and in particular to a kind of residues of pesticides and gas detection method, detection system
System.
Background technology
With industrialized development, harmful residues of pesticides on pernicious gas or vegetable and fruit have become us in life
The problem of having to face in production and life.
The idea of " people-oriented " needs our health awareness, safety and environmental protection whenever and wherever possible, therefore, for all kinds of harmful
The detection of gas selects suitable gas detecting instrument or detection method to turn into the focus of current research.
Currently, the gas detecting instrument of enterprise is handled for petrochemical industry or dangerous material to be included：Multiple harmful gas sensors,
Each harmful gas sensor detects a kind of pernicious gas, is obtained by CPU on the mainboard of the gas detecting instrument a certain harmful
The detection signal of gas sensor, determine the composition and concentration of pernicious gas.
The gas detection method of above-mentioned gas detector can only detect gas corresponding to particular sensor, testing result list
One, and be inconvenient to carry use, testing result is easily disturbed result inaccuracy in actual applications.
The content of the invention
To solve the problems of the prior art, the present invention provides a kind of residues of pesticides and gas detection method, detecting system,
This method can detect a variety of unknown gas simultaneously, and the accurate of testing result can be lifted by converting electrical signals to mathematical model
Rate, while improve detection rates.
In a first aspect, the present invention provides a kind of residues of pesticides and gas detection method, including：
Monitor the electric signal of at least one under test gas；The under test gas be with object under test residues of pesticides it is various
Gas, or, under test gas is gas caused by examined object；
Electric signal is respectively converted into respective mathematical model；
Mathematical model after conversion is matched with pre-establishing the mathematical model of multiple object gas, obtains matching knot
Fruit；
According to the matching result, the testing result of under test gas is obtained.
Alternatively, methods described also includes：
Show the testing result；The testing result includes：The title of under test gas, and/or, the concentration of under test gas
Scope.
Alternatively, the mathematical model after conversion is carried out matching it with pre-establishing the mathematical model of multiple object gas
Before, methods described also includes：
For each object gas, the object gas is obtained in predetermined space in the mathematical model of multiple concentration ranges；
By all object gas in the mathematical model composition mathematical model storehouse of each concentration ranges；
The information of each mathematical model association includes in the mathematical model storehouse：It is dense where gas title and object gas
Spend scope.
Alternatively, the electric signal of at least one under test gas is monitored, including：
The electric signal of multiple under test gas in gas detection cell monitoring current environment in the client is set.
Alternatively, the electric signal of reception is respectively converted into respective mathematical model, including：
Each electric signal of acquisition is converted to mathematical model corresponding to the electric signal by the client, and will conversion
All mathematical models to be analyzed for belonging under test gas afterwards send server.
Alternatively, the mathematical model after conversion is matched with pre-establishing the mathematical model of multiple object gas, obtained
Matching result is taken, including：
Server receives the mathematical model to be analyzed that client is sent；
For each mathematical model to be analyzed, the mathematical model and the mathematical model of each object gas are calculated
Matching degree；
The matching degree of the first predetermined threshold value is selected more than, by object gas corresponding to maximum matching degree in the matching degree of selection
Mathematical model as matching result.
Alternatively, according to the matching result, the testing result of under test gas is obtained, including：
Mathematical model of the server in matching result, determine the gas title and concentration of mathematical model association
Scope；
Using the gas title and concentration range of determination as testing result.
Alternatively, methods described also includes：
The testing result is sent the client by the server；The client shows the testing result；
Or the server screens the testing result according to the second predetermined threshold value, the testing result after screening is sent out
The client is sent, the client shows the testing result；
Or the server shows the testing result；
Or the server screens the testing result according to the second predetermined threshold value, and show the detection knot after screening
Fruit；
Or the gas in the testing result sends prompting harmful gas when including pernicious gas when showing testing result
The prompt message of body；
Or gas in the testing result it is harmful in the range of existing concentration when, when showing testing result
Send the prompt message of prompting pernicious gas.
Second aspect, the present invention also provide a kind of residues of pesticides and gas detecting system, including：
Gas sensor, for monitoring the electric signal of at least one of current environment under test gas；The under test gas be with
The various gases of residues of pesticides on object under test, or, under test gas is gas caused by examined object；
Electric signal data-converting block, electric signal is respectively converted into respective mathematical model；
Processor, the mathematical model after conversion is matched with pre-establishing the mathematical model of multiple object gas, obtained
Take matching result；
According to the matching result, the testing result of under test gas is obtained.
Alternatively, the gas sensor is the gas sensor for the electric signal that can detect multiple gases；
Or the gas sensor is the array gas sensor of more sub- gas sensor compositions, each sub- air-sensitive passes
Sensor can monitor the electric signal of at least one gas；
Or the array gas sensor that the gas sensor forms for more sub- gas sensors, all sub- air-sensitives
Sensor group forms cellular array architecture into circular array architecture, or all sub- gas sensors, or
The array architecture of all sub- gas sensor composition strips of person, each sub- gas sensor can monitor at least one gas
The electric signal of body.
It is the device have the advantages that as follows：
Residues of pesticides and gas detection method convert electrical signals to numeral by obtaining the electric signal of object gas
Model, to match the mathematical model in mathematical model storehouse, testing result is obtained, is thus easily carried, in real time detection, detection
As a result accuracy is high, lifts user experience.
Brief description of the drawings
Fig. 1 is the residues of pesticides of the embodiment of the present invention and the schematic flow sheet of gas detection method；
Fig. 2 to Fig. 4 is respectively the residues of pesticides of the embodiment of the present invention and the signaling diagram of gas detection method；
Fig. 5, Fig. 6 and Fig. 8 are respectively the residues of pesticides of the embodiment of the present invention and the structural representation of gas detecting system；
Fig. 7 and Fig. 9 is respectively the structural representation of the portable electric appts of the embodiment of the present invention；
Figure 10 is the schematic diagram of the digital wave shown in the embodiment of the present invention.
Embodiment
In order to preferably explain the present invention, in order to understand, below in conjunction with the accompanying drawings, by embodiment, to this hair
It is bright to be described in detail.
All of technologies and scientific terms used here by the article and the those skilled in the art for belonging to the present invention are usual
The implication of understanding is identical.Term used in the description of the invention herein is intended merely to describe specific embodiment
Purpose, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more related Listed Items
Arbitrary and all combination." electrical connection " that term " connection " used in each electronic component refers to herein.
Because any material has gas componant, the material can be monitored apart from a certain scope of material to be detected
Gas componant, or various other material compositions contained in the material.Therefore, the residues of pesticides and gas of the embodiment of the present invention
Body detecting method is applicable to the gas componant detection of any material.Agricultural chemicals is there may be on current various veterinary antibiotics
Residual, can be apart from vegetables preset range to be detected using residues of pesticides provided in an embodiment of the present invention and gas detection method
When, the various composition whether having on the vegetables in agricultural chemicals is detected, and then judge the residues of pesticides in the vegetables.
Embodiment of the method
Fig. 1 shows the residues of pesticides and gas detection method of the embodiment of the present invention one, and the method for the present embodiment includes：
101st, the electric signal of at least one under test gas is monitored.
The under test gas of the present embodiment can be caused various agricultural chemicals gases in material preset range to be detected, or to be checked
Survey the gas of itself caused by material preset range.For example, if under test gas is the gas of residues of pesticides, detection is treated
When surveying vegetables, the electric signal of the gas of various residues of pesticides in vegetables 10cm/15cm to be measured, can be monitored.
In the present embodiment, the electric signal of the monitoring of equipment under test gas with gas sensor can be used.The gas of the present embodiment
Quick element can be that the very small gas sensor of single volume or more sub- gas sensors combine the array to be formed
Formula gas sensor.The array gas sensor is circular ring, either alveolate texture or strip structure.This implementation
The small volume of gas sensor in example refers to integrating in portable, and can detect under test gas small size
Element.
Need further exist for explanation, in actual applications, set gas sensor as array architecture/alveolate texture/
Strip structure, its essence is can measure more under test gas, and the electric signal that acquisition under test gas is more accurate.For example,
Can be with setting measurement N kind gases for each sub- gas sensor, then the gas sensor for being integrated with M sub- gas sensors can
To measure N*M kind gases, in can applying in various scenes, expand use range.N, M takes positive integer.
In specifically used, user can also set selection start which sub- gas sensor detected, in order to
Special scenes detect specific gas.For example, interface corresponding to setting options in display screen selects closing n-th as needed
Work song gas sensor, or xth work song gas sensor etc. is opened, facilitate user to set, and convenient detection in real time.
102nd, electric signal is respectively converted into respective mathematical model.
For example, mathematical model can be converted electrical signals to using A/D converter in the present embodiment.The present embodiment
In, mathematical model can be the digital wave (being the digital wave of a time interval section) of corresponding electric signal.In following steps 103
Every kind of known gas can establish the mathematical model of various concentrations, the influence concentration according to harmful gas concentration to human body or environment
Value establishes mathematical model.
A/D converter can connect above-mentioned all gas sensors in the present embodiment.In other embodiments, above-mentioned A/D
Converter can also be multiple, such as in array architecture/alveolate texture/strip that gas sensor is sub- gas sensor composition
During shape structure, each sub- gas sensor can correspond to and connect an A/D converter, thus, can be preferably by the electric signal of measurement
Mathematical model is converted to, and signal quality is higher, while avoid other interference signals.
In addition, can also convert electrical signals to mathematical model using processor in the present embodiment, the mathematical model can be side
Continue a kind of theoretical model being compared after an action of the bowels, the present embodiment is not limited thereof.
Mathematical model in the present embodiment can also be a kind of model structure of data signal composition, convert electrical signals to number
During word model, the noise removal of electric signal can be filtered, and then be converted to mathematical model.
103rd, the mathematical model after conversion is matched with pre-establishing the mathematical model of multiple object gas, acquisition
With result.
It should be noted that in the present embodiment, multiple mathematical models of the multiple object gas pre-established are pre-
Determine what is established in space.Predetermined space at this can be regarded as disturbing during establishing mathematical model it is fewer, after guarantee
The accuracy of testing result after the continuous detection matching under test gas.For example, predetermined space can be without other impurities gas
The space of body, or concentration not the having to the mathematical model of object gas to be measured under predetermined value of every other foreign gas
The space of influence.
In actual applications, multiple mathematical models of the multiple object gas pre-established can prestore mathematical model
In storehouse.
Mathematical model of each object gas in multiple concentration ranges, and each numeral are stored with mathematical model storehouse
The related information of model.
For example, the information of each mathematical model association includes in mathematical model storehouse：Gas title and object gas institute
Concentration range.
In other embodiments, the related information of above-mentioned each mathematical model can also be the letter that other can recognize gas
Breath, the present embodiment are not limited thereof.
104th, according to the matching result, the testing result of under test gas is obtained.
For example, determine matching object gas mathematical model after, can be believed according to the association of the mathematical model of matching
Breath testing result as current under test gas such as concentration ranges as corresponding to gas title, the mathematical model.
In actual applications, can be by gas detecting instrument apart from thing to be detected when carrying out Detecting Pesticide to vegetables, melon and fruit
Body pre-determined distance/preset range, and then the various gases in examined object are obtained, so as to using above-mentioned steps 101 to step
104 mode analyzes the title and concentration information of each unknown gas, and then determines that examined object such as vegetables, melon and fruit etc. are
It is no to have residues of pesticides.
In addition, the method for the present embodiment can also detect to the gas in the operating environment of chemical enterprise, such as can incite somebody to action
Gas detecting instrument is arranged in portable electronic equipment, to enter various environment with operating personnel, to the various gas in environment
Body is detected, and obtains testing result.
Especially, the testing result accuracy of above-mentioned detection method is high, can quick response result, and then can promote each
Kind occasion carries out gas detection.
Above-mentioned steps 103 and step 104 can be realized that the processor can connect foregoing each A/D conversions by processor
Device.Or the processor can be directly connected to gas sensor, realize and obtain last testing result.
In addition, in step 103, the mathematical model that pre-establishes multiple object gas can be according to application scenarios establish with
The mathematical model of multiple object gas of application scenarios matching, such as in the scene that Detecting Pesticide is carried out to gourd, fruit and vegetable
When, mathematical model of the various gases of known farm chemical ingredients on the market in each concentration ranges can be established.Or to changing
, can be by all pernicious gases associated by chemical enterprise in each concentration ranges when work enterprise carries out the scene of pernicious gas detection
Mathematical model pre-establish.
During specific implementation, the method shown in above-mentioned Fig. 1 also includes following steps 105：
105th, the testing result is shown；The testing result includes：The title of under test gas, and/or, under test gas
Concentration range.
It should be noted that because people are stranger to the title of various chemical substances, therefore, can be in the present embodiment
Each gas is explained while showing testing result, the explanation can also be shown in display screen.
For example, to gourd, fruit and vegetable carry out residues of pesticides detection after, show testing result when, it is various to what is detected
The toxic of material illustrates.Display Name：AVM hereinafter Cupric sulfates, concentration belongs to insecticide between 0.03-0.2%, right
Human body is harmful to；Display Name：Hexythiazox, concentration belong to insecticide between 0.02-0.1%, in the concentration range to human body without
Evil；Display Name：Dimethomorph, concentration belong to bactericide in 0.01-0.08%, harmless etc..
The method of the present embodiment can be applicable in the gas detection of any environment, and its is easy to detect, and detection accuracy is high.
In the present embodiment, the electric signal that the electric signal in above-mentioned steps 101 can embody for the mode of signal wave, difference are treated
The waveform for surveying the signal wave of gas can be different, and then can be converted to digital mould according to electrical signal wave of different shapes in the present embodiment
Type.
Due to noise be present in electric signal, after mathematical model is converted to, noise, and then the matching knot obtained can be eliminated
Fruit is more accurate.
Alternatively, in actual applications, after above-mentioned steps 105, the method shown in above-mentioned Fig. 1 can also be by above-mentioned detection
As a result stored, check that either progress subsequent analysis etc. or subsequent technology personnel collect all kinds of detections so that user calls
As a result integral evaluation is carried out to Vehicles Collected from Market or current environment.
It should be noted that before above-mentioned steps 101 are performed, the method shown in above-mentioned Fig. 1 may also include following figures
Not shown in step 100：
100th, for each object gas, the object gas is obtained in predetermined space in the digital mould of multiple concentration ranges
Type；By all object gas in the mathematical model composition mathematical model storehouse of each concentration ranges；
In the present embodiment, the information of each mathematical model association includes in mathematical model storehouse：Gas title and object gas
The concentration range at place.
In actual applications, mathematical model storehouse can be regularly updated, such as when the above method is applied to agriculture residue detection, can
Mathematical model storehouse is established according to farm chemical ingredients all on the market prepared by agricultural chemicals manufacturer, a kind of agricultural chemicals of new component is released every
Afterwards, can real-time update mathematical model storehouse, or according to other modes periodically/periodically update mathematical model storehouse.
The method of the present embodiment can facilitate and quickly identify the composition in various materials, in Detecting Pesticide more
Accurately, and it is widely used.
Fig. 2 shows the residues of pesticides and gas detection method of the embodiment of the present invention two, and the method for the present embodiment includes：
The 201st, the telecommunications of multiple under test gas in gas detection cell monitoring current environment in the client is set
Number.
Gas detection cell in the present embodiment can be currently marketed semiconductor gas sensor.
Gas detection cell can be converted into electric signal by gaseous species and its with concentration dependent information, according to these telecommunications
Number power be obtained with the relevant information of presence situation with test gas in the environment.
In a particular application, gas detection cell can be the gas sensor for the electric signal that can detect multiple gases；
Or gas detection cell is the array gas sensor of more sub- gas sensor compositions, each sub- air-sensitive passes
Sensor can monitor the electric signal of at least one gas；
Or the array gas sensor that gas detection cell forms for more sub- gas sensors, all sub- air-sensitives
Sensor group into annular shape array architecture, or all sub- gas sensors composition cellular array architecture,
Or the array architecture of all sub- gas sensor composition strips, each sub- gas sensor can monitor at least one
The electric signal of gas.
The detection to unknown gas in environment or corresponding to residues of pesticides is accomplished that in the present embodiment.In the application,
Can according to being actually needed, client is placed into material pre-determined distance to be detected so as to realize treat detection material caused by it is various
The monitoring of gas.
202nd, each electric signal of reception can be respectively converted into mathematical model by the converting unit of client.
Here converting unit can be electric signal data-converting block, and the present embodiment is not limited thereof.
As shown in Figure 10, Figure 10 shows the digital wave after three electric signal corresponding conversions, wherein, abscissa is the time
Axle, ordinate are intensity, and agricultural chemicals 1, agricultural chemicals 2, agricultural chemicals 3 are the digital wave of heterogeneity respectively.
After converting electrical signals to digital wave in the present embodiment, matching can be compared in subsequent step 205, is obtained
Matching degree, changing matching can be with anti-interference.In the prior art be by gas sensor monitor gas and sensitive material between
Reaction relation differentiate/identify.Signal interference can effectively be eliminated by carrying out matching using mathematical model in the embodiment of the present invention,
With stronger antijamming capability.
203rd, all mathematical models to be analyzed for belonging under test gas after conversion are sent server by the client.
In actual applications, if situation occurs in current wireless network signal, other network problems, or client is in spy
Environment is determined in use, client can cache all digital moulds to be analyzed for belonging under test gas after being changed in preset time period
Type.When recovering in network signal, or leaving specific environment, above-mentioned steps 203 are can perform.
By network connection between usual client and server, the network can be mobile communications network or LAN
Or new network of the form such as wifi, bluetooth embodiment etc..
, can be by point-to-point transmission, such as P2P between client and server in the specific time, or other are faster
The data transfer mode of speed is transmitted, and the present embodiment is not limited thereof.
204th, server receives the mathematical model to be analyzed that client is sent.
205th, for each mathematical model to be analyzed, the digital mould of the mathematical model and each object gas is calculated
The matching degree of type.
Here matching degree can be adjusted according to the data model of reality, such as mathematical model is data signal, can
Alignment similarity, if mathematical model is more complicated network structure, cryptographic Hash can be used to calculate the matching of mathematical model
Degree.The present embodiment is not limited thereof, and any calculation for being capable of computation model matching degree or similarity can be used.
206th, the matching degree of the first predetermined threshold value is selected more than, by target corresponding to maximum matching degree in the matching degree of selection
The mathematical model of gas is as matching result.
It should be noted that the first predetermined threshold value here can be pre-defined.Is respectively less than if all of matching degree
One predetermined threshold value, then terminate.
Or in other possible implementations, when all matching degrees are respectively less than the first predetermined threshold value, selection
Mathematical model with object gas corresponding to maximum matching degree in degree is as matching result.
207th, mathematical model of the server in matching result, the gas title and concentration of mathematical model association are determined
Scope；Using the gas title and concentration range of determination as testing result.
208th, the testing result is sent the client by server；The client shows the testing result.
For example, the principle that uses of instrument for surveying formaldehyde in the prior art be by the gas that gas sensor monitors with it is quick
The reaction relation between material is felt to identify, therefore, using the instrument of survey formaldehyde in formaldehyde environment is measured, if formaldehyde environment does not have
There is formaldehyde, there is ammonia, because ammonia can be also electrochemically reacted with surveying the instrument of formaldehyde, therefore the instrument for surveying formaldehyde can also be reported
It is alert.Now, people can only determine formaldehyde according to the alarm for surveying formaldehyde instrument, can not be that formaldehyde or ammonia surpass respectively
Mark, then differentiate error.The method of the embodiment of the present invention can avoid this differentiation error, by the electricity of each gas of measurement
Signal is converted to mathematical model, and server is by the plurality of target in the mathematical model after conversion and the mathematical model storehouse pre-established
The mathematical model of gas is matched, and then goes out various gases respectively, for example, the digital wave of formaldehyde and ammonia is different, therefore
Formaldehyde components and ammonia composition can be identified respectively in formaldehyde environment.Thus, the mathematical model application scenarios of the embodiment of the present invention
Extensively, measurement result is accurate, and mathematical model can be effectively anti-interference, avoids above-mentioned result from differentiating error.
In other embodiments, the step 208 can also be：
Server screens the testing result according to the second predetermined threshold value, and the testing result after screening is sent into the client
End, the client show the testing result.Alternatively, while testing result is shown, may also display in testing result
Other explanation contents that user understands can be helped corresponding to each gas title.
In a particular application, client is when showing the testing result, also can determine whether is gas in testing result
Belong to pernicious gas, if belonged to, send the prompt message or warning message of prompting pernicious gas；
Or client also determines whether that gas is in existing concentration in testing result when showing the testing result
In the range of whether human body is harmful to, if it is, send prompting pernicious gas prompt message or warning message.
In a kind of optional implementation, above-mentioned steps 208 can need not send testing result client, server
Testing result can be directly displayed, as shown in Figure 4；Or the testing result is screened according to the second predetermined threshold value, after screening
Testing result is shown.
That is, above-mentioned steps 201 to step 203 can be realized by client (such as Remote equipment), step 204
It can be realized to step 208 by server.
For example, the client of the executive agent of above-mentioned steps 201 to 203 can be：Portable watch, remote control equipment,
Mobile terminal, IPAD or other portable electric appts.
Or the executive agent client of above-mentioned steps 201 to 203 be located at Portable watch, remote control equipment, mobile terminal,
In IPAD or other portable electric appts.
Special instruction, the gas detecting element of client can directly contact gas to be measured in any appliance
Body.For example, the gas detecting element of client is embedded in the shell of client corresponding device, or it is arranged on belonging to client
The shell of equipment is interior and passes through the under test gas in the stomata determination of the environment on shell.
In another optional implementation, the client that is related in step 208 can with above-mentioned steps 201 to 203
The client being related to is identical (as shown in Figure 2), also can difference (as shown in Figure 3).
For example, step 201 can realize that step 204 to step 208 can be realized by server to 203 by bracelet, and
Client corresponding to step 208 can be smart mobile phone or other have the electronic equipment of display screen.
For the method for the present embodiment if applied in portable electric appts, space-consuming is few, and less energy consumption, passes through client
Hold the mobile communication network between (Client) and server (Server) or LAN to realize communication, and then improve detection knot
The response speed of fruit, while lifting result accuracy rate is compared by the detection of server.
Device embodiment
For example, the method shown in above-mentioned Fig. 1 can pass through a portable gas detecting instrument (can be described as digital nose)
Realize, or realized by the residues of pesticides shown in Fig. 5 and gas detecting system (alternatively referred to as digital nose).
As shown in figure 5, the residues of pesticides and gas detecting system of the present embodiment may include：Gas sensor 12, processor 13
With memory 11；
Wherein, gas sensor 12 is used for the electric signal for monitoring at least one of current environment under test gas；
Processor 13 is used to the electric signal of reception being respectively converted into respective mathematical model；
The mathematical model of multiple object gas of the mathematical model after conversion with being stored in memory 11 is matched, obtained
Take matching result；According to the matching result, the testing result of under test gas is obtained.
Further, above-mentioned residues of pesticides and gas detecting system may also include display such as touch display 10, institute
State touch display 10 and show the testing result.
In actual applications, above-mentioned gas sensor 12 and processor 13 can be integrated in a chip, and the chip can
It is embedded in any one electronic equipment, memory 11 now can be the memory in electronic equipment.
Special instruction is that the detecting part of gas sensor 12 can be embedded into the shell of any electronic equipment, or, can be
Passage is set on the shell of electronic equipment, so that the detecting part of gas sensor can touch under test gas.
The gas sensor 12 of the present embodiment can be a gas sensor that can gather multiple gases electric signal, or should
Gas sensor 12 is array gas sensor, and the array gas sensor is circular ring, either alveolate texture or
Strip structure.
The gas sensor 12, processor 13 and memory 11 of the present embodiment can be integrated in a chip, and the chip is embedding
Enter into portable electric appts such as mobile phone, IPAD, or on the decorating objects such as embedded wrist-watch, bracelet, be convenient for carrying, can be real-time
Monitoring, while testing result need not be would know that by communication network or LAN, practicality is high, and lifting user uses body
Test.
In one kind optionally realizes scene, the residues of pesticides and gas detecting system of above-mentioned the present embodiment may include：Gas
Quick element 12, A/D converter, processor 13 and memory 11；
Wherein, gas sensor 12 is used for the electric signal for monitoring at least one of current environment under test gas；
A/D converter can be used for the electric signal of reception being respectively converted into respective mathematical model；
Processor 13 enters the mathematical model of multiple object gas of the mathematical model after conversion with being stored in memory 11
Row matching, obtains matching result；According to the matching result, the testing result of under test gas is obtained.
An A/D converter can be set to connect all gas sensors 12, or A/D converter and gas in the present embodiment
The quantity of sub- gas sensor in quick element 12 is identical, and each A/D converter connects a sub- gas sensor.Processor
Connect all A/D converters.
Above-mentioned residues of pesticides and gas detecting system can be applicable in various scenes the inspection realized to residues of pesticides gas
Survey, improve the accuracy of testing result.
In another kind optionally realizes scene, the embodiment of the present invention also provides the residues of pesticides and gas shown in a kind of Fig. 6
Physical examination examining system, the residues of pesticides and gas detecting system can perform the method shown in above-mentioned Fig. 2.
Specifically, residues of pesticides and gas detecting system may include：Client and server；
The client includes：It is gas sensor 20, signal conversion unit 21, first transmitter 22, the first receiver 23, aobvious
Show device 24；
The gas sensor 20, signal conversion unit 21, first transmitter 22 are sequentially connected；First receiver 23 with
The display 24 connects；
The server includes：Processor 27, the second receiver 28 and second transmitter 25, memory 26；
Second receiver 28, second transmitter 25, memory 26 connect the processor 27 respectively；
Wherein, the gas sensing portion of the gas sensor 20 is embedded on shell, is being treated corresponding to the client with monitoring
Survey the electric signal of gas；
When gas sensor 20 detects electric signal, the electric signal is converted to digital mould by the signal conversion unit 21
Type；The mathematical model is sent the server by the first transmitter 22；
Second receiver 28 of the server receives the mathematical model, and the processor 27 is by the mathematical model of reception
Compared with the mathematical model stored in memory 26, the testing result of under test gas is obtained, the second transmitter 25 will
The testing result sends the client；
First receiver 23 of the client receives the testing result, and shows the inspection by the display 24
Survey result.
Gas sensor in the client of the present embodiment can be the gas sensor that can gather multiple gases electric signal, or
Person is array gas sensor.The present embodiment does not limit the structure of gas sensor, can gather the electric signal of multiple gases
Element.
In addition, the client shown in Fig. 6 can be applicable in portable electric appts, for example, as shown in fig. 7, just
The formula electronic equipment of taking may include：
Gas sensor 20, signal conversion unit 21, first transmitter 22, the first receiver 23, display 24；
The gas sensor 20, signal conversion unit 21, first transmitter 22 are sequentially connected；First receiver 23 with
The display 24 connects；
The gas sensing portion of the gas sensor 20 is embedded on the shell of portable electric appts, to monitor under test gas
Electric signal；
When gas sensor 20 detects electric signal, the electric signal is converted to digital mould by the signal conversion unit 21
Type；The mathematical model is sent server by the first transmitter 22；
After the server gets the testing result of under test gas, first receiver 23 receives the server
The testing result of transmission, and the testing result is shown by the display 24.
Portable electric appts in the present embodiment can monitor, and can be handled without processing, server so that detection knot
Fruit accuracy rate is lifted.
For example, the chip that a very little need to be only embedded in portable electric appts can be achieved what is referred in above-described embodiment
Gas detection function, occupy little space, and energy consumption is low, improves the practicality of portable electric appts.
Further, server can store the mathematical model of multiple object gas, and processing speed is fast, server with it is portable
The interaction of electronic equipment can lift accuracy rate of testing result.
In another optionally realizes scene, the embodiment of the present invention also provides the residues of pesticides and gas shown in a kind of Fig. 8
Physical examination examining system, the residues of pesticides and gas detecting system can perform the method shown in above-mentioned Fig. 3.
Specifically, residues of pesticides and gas detecting system may include：First client, the second client and server；
First client may include：Gas sensor 31, signal conversion unit 32, first transmitter 33；
The gas sensor 31, signal conversion unit 32, first transmitter 33 are sequentially connected；
The server includes：Processor 34, the second receiver 35 and second transmitter 36, memory 37；
Second receiver 35, second transmitter 36, memory 37 connect the processor 34 respectively；
Second client includes：First receiver 38 and display 39；
Wherein, the gas sensing portion of gas sensor 31 is embedded corresponding to the first client on shell in the first client,
To monitor the electric signal of under test gas；
When gas sensor 31 detects electric signal, the electric signal is converted to digital mould by the signal conversion unit 32
Type；The mathematical model is sent the server by the first transmitter 33；
Second receiver 35 of the server receives the mathematical model, and the processor 34 is by the mathematical model of reception
Compared with the mathematical model stored in memory 37, the testing result of object gas is obtained, the second transmitter 36 will
The testing result sends second client；
First receiver 38 of second client receives the testing result, and shows institute by the display 39
State testing result.
For example, the first client in Fig. 8 residues of pesticides and gas detecting system can be portable electric appts,
As shown in figure 9, the portable electric appts may include：
Gas sensor, signal conversion unit, first transmitter；
The gas sensor, signal conversion unit, first transmitter are sequentially connected；
Gas sensing portion/detecting part of the gas sensor is embedded on the shell of portable electric appts, is treated with monitoring
Survey the electric signal of gas；
When gas sensor detects electric signal, the electric signal is converted to mathematical model by the signal conversion unit；
The mathematical model is sent server by the first transmitter.
In a particular application, the portable electric appts can be remote control equipment, and the remote control equipment can be various complicated, severe
Various toxic and harmful gas are gathered in environment, have carried out follow-up discriminatory analysis.
For example, remote control equipment can realize that gas detects in the explosion scene of various chemical enterprises, effectively accurately to sentence
Which toxic and harmful gas disconnected explosion scene has so that rescue personnel or fire fighter preferably protect, and improve security.
Further, the portable electric appts shown in Fig. 9 may also include：First receiver and display, described
One receiver connects with the display；
After the server gets the testing result of under test gas, first receiver receives the server hair
The testing result sent, and the testing result is shown by the display.
In a particular application, the portable electric appts shown in Fig. 9 may also include：Sent out positioned at signal conversion unit and first
Buffer unit between emitter；
The buffer unit is cached the mathematical model that signal conversion unit in predetermined amount of time is changed.
Portable electric appts now can be bracelet, intelligent watch, Intelligent decorative thing, remote control equipment, tablet personal computer, hand
Machine etc..Portable electric appts power consumption is low, fast with server interaction response, lifts accuracy rate of testing result.
The gas sensor referred in above-mentioned any embodiment can be semiconductor gas sensor.Or in other embodiment
In, gas sensor can also be an array-type sensor being made up of multiple semiconductor gas sensors.
In several embodiments provided by the present invention, it should be understood that disclosed relevant apparatus and method, Ke Yitong
Other modes are crossed to realize.For example, device embodiment described above is only schematical, for example, the module or list
The division of member, only a kind of division of logic function can have an other dividing mode when actually realizing, for example, multiple units or
Component can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, show
Show or the mutual coupling discussed or direct-coupling or communication connection can be by some interfaces, between device or unit
Coupling or communication connection are connect, can be electrical, mechanical or other forms.Part therein can be selected according to the actual needs
Or whole units realize the purpose of this embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing computer disposal
Device (processor) performs all or part of step of each embodiment methods described of the present invention.And foregoing storage medium bag
Include：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：Above-described embodiments are merely to illustrate the technical scheme, rather than to it
Limitation；Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in previous embodiment, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or substitutions, the essence of appropriate technical solution is departed from various embodiments of the present invention technical side
The scope of case.
Claims (10)
1. a kind of residues of pesticides and gas detection method, it is characterised in that including：
Monitor the electric signal of at least one under test gas；
Electric signal is respectively converted into respective mathematical model；
Mathematical model after conversion is matched with pre-establishing the mathematical model of multiple object gas, obtains matching result；
According to the matching result, the testing result of under test gas is obtained.
2. according to the method for claim 1, it is characterised in that methods described also includes：
Show the testing result；The testing result includes：The title of under test gas, and/or, the concentration model of under test gas
Enclose.
3. according to the method for claim 1, it is characterised in that by the mathematical model after conversion and pre-establish multiple targets
Before the mathematical model of gas is matched, methods described also includes：
For each object gas, the object gas is obtained in predetermined space in the mathematical model of multiple concentration ranges；
By all object gas in the mathematical model composition mathematical model storehouse of each concentration ranges；
The information of each mathematical model association includes in the mathematical model storehouse：Concentration model where gas title and object gas
Enclose.
4. method according to any one of claims 1 to 3, it is characterised in that the electric signal of at least one under test gas is monitored,
Including：
The electric signal of multiple under test gas in gas detection cell monitoring current environment in the client is set.
5. according to the method for claim 4, it is characterised in that electric signal is respectively converted into respective mathematical model, wrapped
Include：
Each electric signal of acquisition is converted to mathematical model corresponding to the electric signal by the client, and by after conversion
All mathematical models to be analyzed for belonging under test gas send server.
6. according to the method for claim 5, it is characterised in that by the mathematical model after conversion and pre-establish multiple targets
The mathematical model of gas is matched, and obtains matching result, including：
Server receives the mathematical model to be analyzed that client is sent；
For each mathematical model to be analyzed, the matching of the mathematical model and the mathematical model of each object gas is calculated
Degree；
The matching degree of the first predetermined threshold value is selected more than, by the number of object gas corresponding to maximum matching degree in the matching degree of selection
Word model is as matching result.
7. according to the method for claim 6, it is characterised in that according to the matching result, obtain the detection of under test gas
As a result, including：
Mathematical model of the server in matching result, determine the gas title and concentration model of mathematical model association
Enclose；
Using the gas title and concentration range of determination as testing result.
8. according to the method for claim 7, it is characterised in that methods described also includes：
The testing result is sent the client by the server；The client shows the testing result；
Or the server screens the testing result according to the second predetermined threshold value, the testing result after screening is sent into institute
Client is stated, the client shows the testing result；
Or the server shows the testing result；
Or the server screens the testing result according to the second predetermined threshold value, and show the testing result after screening；
Or the gas in the testing result sends prompting pernicious gas when including pernicious gas when showing testing result
Prompt message；
Or gas in the testing result it is harmful in the range of existing concentration when, sent when showing testing result
Prompt the prompt message of pernicious gas.
9. a kind of residues of pesticides and gas detecting system, it is characterised in that including：
Gas sensor, for monitoring the electric signal of at least one of current environment under test gas；
Electric signal data-converting block, electric signal is respectively converted into respective mathematical model；
Processor, the mathematical model after conversion is matched with pre-establishing the mathematical model of multiple object gas, acquisition
With result；
According to the matching result, the testing result of under test gas is obtained.
10. system according to claim 9, it is characterised in that the gas sensor is the electricity that can detect multiple gases
The gas sensor of signal；
Or the array gas sensor that the gas sensor forms for more sub- gas sensors, each sub- gas sensor
The electric signal of at least one gas can be monitored；
Or the array gas sensor that the gas sensor forms for more sub- gas sensors, all sub- gas sensings
The circular array architecture of device composition, or all sub- gas sensors form cellular array architecture, Huo Zhesuo
By sub- gas sensor form the array architecture of strip, each sub- gas sensor can monitor at least one gas
Electric signal.
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| CN201710443110.9A CN107421991A (en) | 2017-06-13 | 2017-06-13 | A kind of residues of pesticides and gas detection method, detecting system |
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| CN201710443110.9A CN107421991A (en) | 2017-06-13 | 2017-06-13 | A kind of residues of pesticides and gas detection method, detecting system |
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