CN104483352A - Rapid detection system for pesticide residues of fruits and vegetables and application of rapid detection system - Google Patents
Rapid detection system for pesticide residues of fruits and vegetables and application of rapid detection system Download PDFInfo
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Abstract
The invention discloses a rapid detection system for pesticide residues of fruits and vegetables and application of the rapid detection system, and belongs to the technical field of detection of pesticide residues. The rapid detection system disclosed by the invention comprises a plurality of slave computer detection modules and at least one host computer monitoring module, wherein the slave computer detection modules are used for detecting the concentration of the pesticide residues in a to-be-detected sample, and generating a detection signal; the detection signal is output through a printer after being subjected to conversion; meanwhile, detection information is transmitted to the host computer monitoring module; the host computer monitoring module is used for monitoring the detection states of the slave computer detection modules, collecting the detection result and automatically introducing the detection result into a database sub-module; meanwhile, query of the detection information can be achieved; and the database sub-module is used for collection, classified storage and analysis treatment of the detection information. According to the rapid detection system disclosed by the invention, rapid and multi-channel detection of the pesticide residues is achieved, the detection efficiency is improved; the detection cost is reduced; and the requirements of field detection of the pesticide residues can be fully met.
Description
Technical field
The present invention relates to a kind of rapid detection system and application of garden stuff pesticide residue, belong to the Detection Technologies of Pesticide Residues field.
Background technology
Residues of pesticides in food, except affecting consumer health, also affect foreign trade, national reputation.Along with European Union and Japan and other countries have successively formulated the highest multinomial Pesticide Residue standard, constantly strengthen the health quality requirements to imported food, cause agricultural products in China international trade phenomenon of being obstructed to increase rapidly, the importance of Detecting Pesticide more highlights.Agricultural chemicals plays the preventive and therapeutic effect of disease pest and weed in the planting process of fruits and vegetables, but agricultural chemicals can not all be absorbed by plants, and major part still remains in fruit surface.In promotion modern agricultural production develops rapidly, the human society that appears as of agricultural chemicals brings huge economic interests.But the origin of chemistry of pesticide material adds and the use that people's large area is not scientific and reasonable manages inadequate specification in addition, the balance causing the ecosystem is destroyed, and Pesticide Residue displays thereupon.
Bread is the staff of life, and along with the raising of people's living standard, people more and more pay close attention to the healthy diet in daily life.Strengthen foods supervision, pay close attention to the well-being of the people, allowing the common people be able to eat " safety fruits and vegetables " is the basic premise ensureing the people's livelihood, but annual because ediblely cause poisoning event containing residues of pesticides food and occur repeatedly.The edible food containing residues of pesticides can cause people's acute poisoning.The agricultural byproducts that long-term edible residues of pesticides exceed standard, can cause the generation of various diseases, the serious follow-on health of even impact.
From the 1950's, China starts the research of Analytical Techniques of Pesticide Residues.Between the present situation that science and technology at that time falls behind, Analytical Techniques of Pesticide Residues method is also limitation very, analytical approach its be only limitted to chemical method, colourimetry and bioassay method, and detection method is single, has detected in time, and its sensitivity is not high yet.
Along with the iterative method of Urbanization Construction, people are mainly market and supermarket for the main procurement method of fruits and vegetables.But on the one hand because checkout equipment high cost is equipped with except detecting instrument except relevant governmental detects department, these fruits and vegetables selling posts are but seldom equipped with the relevant device of agriculture residual detection and to detect the existing checkout equipment of website be based on large-scale checkout equipment that is meteorological, liquid phase, detection efficiency is low, testing process is complicated, cannot realize hyperchannel and detect fast and the not easily universal and popularization of checkout equipment cost height.On the other hand, the hyperchannel that existing checkout equipment does not have wireless data communications and information networking function cannot realize detecting data is collected and realizes network sharing.
Summary of the invention
For solving the problem, the invention provides a kind of rapid detection system of garden stuff pesticide residue, the technical scheme taked is as follows:
The object of the present invention is to provide a kind of rapid detection system of garden stuff pesticide residue, this system comprises some slave computer detection modules and at least one ipc monitor module; Wherein, slave computer detection module comprises three electrode submodules, power supply submodule, input and process submodule, shows and prints sub module stored and data transmission module, slave computer detection module is for detecting testing sample Pesticide Residues concentration and generating detection signal, Detection Information by printer output, is transferred to ipc monitor module by detection signal after conversion process simultaneously; Ipc monitor module, comprise data interaction submodule, Data Control and process submodule, data display and output sub-module and database subsystem module, ipc monitor module is for monitoring the detected state of slave computer detection module, collect testing result, testing result is classified, analyze and can automatically testing result be imported in database, inquiry and the printout of Detection Information can be realized simultaneously;
Described slave computer detection module, is connected with host computer monitoring modular by wireless network, comprises three electrode submodules, power supply submodule, input and process submodule, shows and prints sub module stored and data transmission module, wherein:
Three electrode submodules, comprise enzyme sensor unit, three electrode detection circuit units and potentiostatic circuit unit, enzyme sensor unit gathers the current signal of testing sample Pesticide Residues concentration, three electrode detection circuit units are by the current signal transfer that collects to infomation detection and process submodule, and potentiostatic circuit provides constant voltage for testing sample solution;
Power supply submodule, comprises Switching Power Supply submodule and voltage conversion circuit submodule, for each submodule of slave computer detection module provides stable electricity;
Input and process submodule, containing microprocessor unit, after receiving sensed current signal, detection signal changed, amplify, filtering, generate digital quantity signal, digital quantity signal process is encoded into exportable form by microprocessor unit again, again exportable format information be transferred to display and print sub module stored, realize the reception of data and convert wireless transmission modes to serial ports sending mode;
Display and printing sub module stored, containing display unit, storage unit and print unit, undertaken storing and showing or printout by the exportable format information that input and process submodule generate;
Data transmission module, includes wireless transmit/receive units and wired Transmit-Receive Unit, realizes wireless and wired reception and the transmitting of data respectively.
Described upper computer detection module, be connected with slave computer detection module by wireless network, by wireless or cable network and database subsystem model calling, comprise data interaction submodule, Data Control and process submodule, data display and output sub-module and database subsystem module, wherein:
Data interaction submodule, this submodule, simultaneously can by the data information transfer after Data Control and the process of process submodule to slave computer detection module and database subsystem module for receiving the detection data of slave computer detection module transmission;
Data Control and process submodule, this submodule is collected the Detection Information of each slave computer detection module and is carried out classification analysis process, monitor the duty of each slave computer module, the transmission of the mutual submodule data of control data simultaneously and the inquiry of reception and data message;
Data display and output sub-module, this submodule contains man-machine interaction unit, realizes the man-machine interaction of data message, also can realize the printout of data message simultaneously;
Database subsystem module, comprise data transmit-receive subelement, Database Unit and data analysis unit, realize through Data Control and process submodule process cross information collection, gather, classify, store, analyze, the generation of Query Information and the storage of historical query information.
Preferably, described enzyme sensor unit is the acetylcholine ester enzyme sensor modified based on many walls carbon-tin ash-chitosan complexes.
Preferably, described potentiostatic circuit unit, comprises TLC272CP operational amplifier, and for testing sample solution provides constant voltage, voltage is 500mV.
Preferably, described power supply submodule, based on 78L05 and 79L05 three terminal integrated voltage stabilizer, alternating current is converted to+12V, 1A ,-12V by Switching Power Supply submodule, 1A and+5V, 5A divides three road direct currents to export, and wherein+12V, 1A and-12V, 1A direct current are converted to+5V through 78L05 and 79L05 three terminal integrated voltage stabilizer and power with each submodule that-5V voltage exports as slave computer detection module, + 5V, 5A road direct current is that print unit is powered.
Preferably, described microprocessor unit is STM32F103VET6 microprocessor.
Preferably, described display unit, comprise 3 cun of TFT liquid crystal touch screens containing R61509V driver, resolution is 240 × 400.
Preferably, described print unit, containing RD-E type mini-printer.
Preferably, described wireless transmit/receive units is based on the radio-cell of NRF24L01 wireless transceiver circuit, bluetooth unit, GPRS unit, Zigbee unit, 2G unit, 3G unit, 4G unit, WIFI unit or CDMA unit.
Described rapid detection system is used for the detection of Residual Pesticides in Farm Produce.
Compared with prior art, technical scheme of the present invention has the following advantages:
Detection system provided by the present invention realizes the quick of residues of pesticides and multi-channel detection, improves detection efficiency and reduces testing cost, fully can meet the demand of residues of pesticides Site Detection.Detection system host computer is monitored slave computer checkout equipment state in real time and is realized two-way communication with slave computer.Host computer again with DataBase combining, the detection data automated import of data storehouse of being sent by slave computer, can realize detecting being automatically imported and controlling the operation of whole system and respond of data.For existing Detecting Pesticide equipment, detection system of the present invention have compact conformation, easy to carry, detect quick and precisely, the outstanding feature such as simple to operate, practical.A kind of efficient, practical, the detection system of low cost.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of agriculture of the present invention residual detection system slave computer Fast Determination of Pesticide Residue equipment.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Fig. 1 is the Fast Determination of Pesticide Residue entire system framework map that the present invention is based on three wire electrode reticulated printing electrode sensors.As shown in Figure 1, the present invention is made up of slave computer Detecting Pesticide module and ipc monitor module.
Multiple slave computer detection module and a host computer monitoring modular is comprised in described detection system.Wherein, multiple slave computer detection module can realize data communication with same host computer, and upper computer detection module and database subsystem module realize data communication.
Described slave computer detection module as shown in Figure 1, by three electrode submodules, power supply submodule, input and process submodule, show and print sub module stored, data transmission module forms, and realizes Fast Determination of Pesticide Residue.
Described three electrode submodules form by based on TLC272CP operational amplifier, realize potentiostatic circuit function, and voltage is 500mV.
Described power supply submodule is made up of Switching Power Supply submodule and voltage conversion circuit submodule, comprising based on 78L05 and 79L05 three terminal integrated voltage stabilizer.Alternating current is converted to+12V, 1A by Switching Power Supply submodule,-12V, 1A and+5V, 5A divides three road direct currents to export, wherein+12V, 1A and-12V, 1A direct current is converted to through 78L05 and 79L05 three terminal integrated voltage stabilizer each submodule that+5V and-5V voltage exports as slave computer detection module and powers, and+5V, 5A road direct current is that print unit is powered the electricity supply realizing slave computer checkout equipment.
Described input forms by based on STM32F103VET6 microprocessor with process submodule, realizes the process of detection signal, and converts detection signal to residues of pesticides concentration by background program process.
Described display with print sub module stored and be made up of 3 cun of TFT modules (240X400 resolution) R61509V driver liquid crystal touch screen, RD-E type mini-printer that the equipment that realizes manipulates, data show and detect the printout of data.
Described data transmission module forms by based on NRF24L01 wireless transceiver circuit, realizes the wireless transmission of data.Data receiver forms by based on STM32F103C8T6 microprocessor, realizes the reception of data and converts wireless transmission modes to serial ports sending mode.
Software in described host computer monitoring modular is developed by virtual instrument software development environment LabVIEW8.20.
Described upper computer detection module, comprises data interaction submodule, Data Control and process submodule, data display and output sub-module and database subsystem module.Data interaction submodule, simultaneously can by the data information transfer after Data Control and the process of process submodule to slave computer detection module and database subsystem module for receiving the detection data of slave computer detection module transmission.Data Control and process submodule, collect the Detection Information of each slave computer detection module and carry out classification analysis process, monitoring the duty of each slave computer module, the transmission of the mutual submodule data of control data simultaneously and the inquiry of reception and data message.Data display and output sub-module, this submodule contains man-machine interaction unit, realizes the man-machine interaction of data message, also can realize the printout of data message simultaneously.Database subsystem module comprises data transmit-receive subelement, Database Unit and data analysis unit, realize through Data Control and process submodule process cross information collection, gather, classify, store, analyze, the generation of Query Information and the storage of historical query information.Ipc monitor module specifically also comprises serial port setting column, Detection Information enquiry module and corresponding button, pilot lamp and choice box and display box.Host computer have data automated import of data library facility, data query function while monitoring whole system duty host computer again with DataBase combining, realize being automatically imported and the inquiry of data of data.
Embodiment below with regard to trace routine illustrates:
First, install based on three wire electrode reticulated printing electrode sensor Fast Determination of Pesticide Residue system upper computer softwares.Switched on power by slave computer, display display Shandong Technology Univ is based on the Fast Determination of Pesticide Residue system of three wire electrode reticulated printing electrode sensors.Three wire electrode reticulated printing electrode sensors are put into the sample detection environment handled well and is connected with slave computer.Press the ready button on initialization interface, slave computer sent to by signal host computer to inform slave computer is ready can detect.Check point can have multiple stage slave computer to carry out work, and host computer carries out receiving and processing.After what slave computer received that host computer sends can carry out detection signal, Detecting Pesticide interface will be entered.Screen will show veterinary antibiotics two options, select the classification that will detect.At this moment screen will the corresponding kind of display selected item, as last time, operation was selected be on fruit screen by check point such as display apple, pears, peach etc. have all kinds of fruit.Choose the types of fruits that will detect to press confirming button, now instrument will carry out the residual detection of such other agriculture, and screen display just in the detection.Screen display has detected proves that this detects end of operation, and instrument will record detection classification and the residues of pesticides value and detection data are sent to host computer of this operation automatically.Whether host computer detects kind, residues of pesticides concentration value after receiving and detecting data and exceeds standard and will show the working state of system viewing area in host computer interface, meanwhile receives the flicker of successful pilot lamp, proves that this Detection Information receives successfully.Detecting data will automatically stored in background data base.Carry out host computer background data base by all for storage detection data along with what detect, user can on the inquiry hurdle input inquiry date now by all Detection Information on the same day of display appointed day.
Attention: 1. to measure next testing sample, clicks the reset button on slave computer.
2. instrument zeroing and standard model test after shutdown, must be re-started.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (9)
1. a rapid detection system for garden stuff pesticide residue, is characterized in that, comprises some slave computer detection modules and at least one ipc monitor module; Wherein, slave computer detection module comprises three electrode submodules, power supply submodule, input and process submodule, shows and prints sub module stored and data transmission module, slave computer detection module is for detecting testing sample Pesticide Residues concentration and generating detection signal, Detection Information by printer output, is transferred to ipc monitor module by detection signal after conversion process simultaneously; Ipc monitor module, comprise data interaction submodule, Data Control and process submodule, data display and output sub-module and database subsystem module, ipc monitor module is for monitoring the detected state of slave computer detection module, collect testing result, testing result is classified, analyze and can automatically testing result be imported in database, inquiry and the printout of Detection Information can be realized simultaneously;
Described slave computer detection module, is connected with host computer monitoring modular by wireless network, comprises three electrode submodules, power supply submodule, input and process submodule, shows and prints sub module stored and data transmission module, wherein:
Three electrode submodules, comprise enzyme sensor unit, three electrode detection circuit units and potentiostatic circuit unit, enzyme sensor unit gathers the current signal of testing sample Pesticide Residues concentration, three electrode detection circuit units are by the current signal transfer that collects to infomation detection and process submodule, and potentiostatic circuit provides constant voltage for testing sample solution;
Power supply submodule, comprises Switching Power Supply submodule and voltage conversion circuit submodule, for each submodule of slave computer detection module provides stable electricity;
Input and process submodule, containing microprocessor unit, after receiving sensed current signal, detection signal changed, amplify, filtering, generate digital quantity signal, digital quantity signal process is encoded into exportable form by microprocessor unit again, again exportable format information be transferred to display and print sub module stored, realize the reception of data and convert wireless transmission modes to serial ports sending mode;
Display and printing sub module stored, containing display unit, storage unit and print unit, undertaken storing and showing or printout by the exportable format information that input and process submodule generate;
Data transmission module, includes wireless transmit/receive units and wired Transmit-Receive Unit, realizes wireless and wired reception and the transmitting of data respectively.
Described upper computer detection module, be connected with slave computer detection module by wireless network, by wireless or cable network and database subsystem model calling, comprise data interaction submodule, Data Control and process submodule, data display and output sub-module and database subsystem module, wherein:
Data interaction submodule, this submodule, simultaneously can by the data information transfer after Data Control and the process of process submodule to slave computer detection module and database subsystem module for receiving the detection data of slave computer detection module transmission;
Data Control and process submodule, this submodule is collected the Detection Information of each slave computer detection module and is carried out classification analysis process, monitor the duty of each slave computer module, the transmission of the mutual submodule data of control data simultaneously and the inquiry of reception and data message;
Data display and output sub-module, this submodule contains man-machine interaction unit, realizes the man-machine interaction of data message, also can realize the printout of data message simultaneously;
Database subsystem module, comprise data transmit-receive subelement, Database Unit and data analysis unit, realize through Data Control and process submodule process cross information collection, gather, classify, store, analyze, the generation of Query Information and the storage of historical query information.
2. rapid detection system according to claim 1, is characterized in that, described enzyme sensor unit, is the acetylcholine ester enzyme sensor modified based on many walls carbon-tin ash-chitosan complexes.
3. rapid detection system according to claim 1, it is characterized in that, described potentiostatic circuit unit, comprises TLC272CP operational amplifier, and for testing sample solution provides constant voltage, voltage is 500mV.
4. rapid detection system according to claim 1, it is characterized in that, described power supply submodule, based on 78L05 and 79L05 three terminal integrated voltage stabilizer, alternating current is converted to+12V, 1A by Switching Power Supply submodule,-12V, 1A and+5V, 5A divides three road direct currents to export, wherein+12V, 1A and-12V, 1A direct current is converted to+5V through 78L05 and 79L05 three terminal integrated voltage stabilizer and powers with each submodule that-5V voltage exports as slave computer detection module, and+5V, 5A road direct current is that print unit is powered.
5. rapid detection system according to claim 1, it is characterized in that, described microprocessor unit, is STM32F103VET6 microprocessor.
6. rapid detection system according to claim 1, is characterized in that, described display unit, and comprise 3 cun of TFT liquid crystal touch screens containing R61509V driver, resolution is 240 × 400.
7. rapid detection system according to claim 1, is characterized in that, described print unit, containing RD-E type mini-printer.
8. rapid detection system according to claim 1, it is characterized in that, described wireless transmit/receive units is based on the radio-cell of NRF24L01 wireless transceiver circuit, bluetooth unit, GPRS unit, Zigbee unit, 2G unit, 3G unit, 4G unit, WIFI unit or CDMA unit.
9. rapid detection system described in claim 1-8, is characterized in that, for the detection of Residual Pesticides in Farm Produce.
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