CN201184869Y - Determinator for fruit and vegetables pesticide residue - Google Patents
Determinator for fruit and vegetables pesticide residue Download PDFInfo
- Publication number
- CN201184869Y CN201184869Y CNU2008200926965U CN200820092696U CN201184869Y CN 201184869 Y CN201184869 Y CN 201184869Y CN U2008200926965 U CNU2008200926965 U CN U2008200926965U CN 200820092696 U CN200820092696 U CN 200820092696U CN 201184869 Y CN201184869 Y CN 201184869Y
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- pesticide residue
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Abstract
The utility model discloses a pesticide residue detector in fruits and vegetables. The pesticide residue detector comprises a liquid crystal display circuit and a power supply circuit, etc., and the pesticide residue detector is characterized in that the pesticide residue detector further comprises a central controller, a temperature detection circuit, a heating drive circuit and an information storage circuit. The temperature detection circuit firstly detects the water temperature and then sends a signal to the central controller for processing, and the central controller further controls the heating drive circuit to carry out the heating or stop heating of water to maintain the water temperature constant. The pesticide residue detector also comprises a voltage detection circuit, a charging circuit, a voice prompt circuit and a microcomputer interface circuit. The pesticide residue detector can automatically control the water temperature and provide the water with the constant temperature to a piece of test paper, thereby carrying out the accurate detection of the residual pesticides on the fruits and the leaves of the vegetables; the pesticide residue detector can not only carry out the charging by utilizing an external power supply, but can also carry out the charging by utilizing a power supply in an automobile and supply the power by utilizing a battery which is carried by the pesticide residue detector, thereby being not excessively dependent on the external power supply and facilitating the real-time and site-specific detection. The pesticide residue detector further has the advantages of fast detection speed, high detection efficiency, high degree of automation and easy carrying.
Description
Technical field
The utility model relates to Pesticides Testing equipment, especially relates to a kind of garden stuff pesticide residue analyzer that is used to detect remains of pesticide on the fruits and vegetables leaf.
Background technology
At present because the insect pest of fruits and vegetables is more and more, orchard worker and vegetable grower are in order to control and to eliminate destructive insects, guarantee the normal growth of fruits and vegetables, have to spray insecticide in a large number, though agricultural chemicals has killed insect, but also there are many residual agricultural chemicals to stay on the fruits and vegetables leaf, as long-time rinsing fruits and vegetables, then occur fruits and vegetables easily after eating and poison before citizen are edible.The fruits and vegetables poisoning is seen in space in a newspaper frequently in each city.
Method commonly used now is exactly to detect agricultural chemicals residual on the fruits and vegetables leaf with test paper, color as test paper changes, then represent nonpersistent pesticide, color no change as test paper, then there is remains of pesticide in expression, but because existing detector can't provide the water of steady temperature to test paper, the result that detection paper goes out neither be very accurate, can't be convincing.Existing detector detection speed is slower, and automaticity is low excessively, the needs of incompatibility fast detecting; And it too relies on extraneous power supply, and self not charged source is not easy to carry, thereby can't carry out real-time on-site and detect, and detection efficiency reduces greatly.
Summary of the invention
Thereby the purpose of this utility model be to provide the automatic control water temperature of a kind of energy to test paper the water of steady temperature is provided, testing result is accurate, detection speed is fast, but detection efficiency and automaticity height real-time on-site detect, fruits and vegetables formula pesticide residue detector easy to carry.
The purpose of this utility model is achieved in that the utility model comprises reset circuit, liquid crystal display circuit, power circuit and input keyboard, and feature is also to comprise central controller, temperature sensing circuit, heat driven circuit and information storage circuit.Temperature sensing circuit detects water temperature earlier, then signal is delivered to central controller and is handled, and central controller is controlled the heat driven circuit again and water heated or stops heating, to keep the temperature constant of water.
The utility model also comprises voltage detecting circuit and charging circuit.
The utility model also comprises voice warning circuit.
The utility model also comprises microcomputer interface circuit.
The utility model is because design has central controller, temperature sensing circuit, heat driven circuit and information storage circuit, thereby the automatic control water temperature of energy, thereby provide the water of steady temperature can agricultural chemicals residual on the fruits and vegetables leaf accurately be detected to test paper; The utility model also comprises voltage detecting circuit and charging circuit, it both can utilize extraneous power supply to charge, and also can utilize the interior power supply of car to charge at any time, and can utilize self storage battery going along with power supply, thereby the extraneous power supply of dependence within reason, be convenient to real-time on-site and detect.Can play back by the mode of voice warning circuit for information about, can show by LCDs again with voice, very directly perceived.Central controller can carry out exchanges data by microcomputer interface circuit and microcomputer.Thereby therefore the utlity model has control water temperature automatically to test paper the water of steady temperature is provided, testing result is accurate, but the fast real-time on-site of detection speed detects, detection efficiency and automaticity height, easy to carry, practical, advantage that cost is low, effective.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is made up of central controller, temperature sensing circuit, heat driven circuit, information storage circuit, voltage detecting circuit, voice warning circuit, microcomputer interface circuit, reset circuit, charging circuit, input keyboard, liquid crystal display circuit and power circuit, wherein:
Central controller is made up of main control integrated circuit U1, capacitor C 8, C9 and crystal oscillator Y1, crystal oscillator Y1 and capacitor C 8, C9 constitute crystal oscillating circuit, vibration end 14,15 pin of the two termination main control integrated circuit U1 of crystal oscillator Y1, U1 provides oscillator signal for main control integrated circuit, and produces the timer clock signal thus.
Temperature sensing circuit is by temperature sensor U4, computing amplification circuit U8, analog-digital conversion ic U5, resistance R 39-R41, polar capacitor C4, C5 forms, signal output part 2 pin of temperature sensor U4 connect positive input terminal 3 pin of computing amplification circuit U8, output terminal 1 pin of computing amplification circuit U8 and input end of analog signal 3 pin that meet analog-digital conversion ic U5 after resistance R 39 is connected, the digital signal output end 9 of analog-digital conversion ic U5,10 pin connect the temperature detection end 41 of main control integrated circuit U1 respectively, 42 pin, resistance R 40 is connected in parallel between negative input end 2 pin and output terminal 1 pin of computing amplification circuit U8, resistance R 41 is connected between negative input end 2 pin and ground of computing amplification circuit U4, resistance R 40, the gain amplifier of R41 decision computing amplification circuit U8.
The heat driven circuit is made up of two field effect transistor T1, T2, resistance R 17, R37 and two-way heating resistor RA1-RA5, RB1-RB5, the grid of field effect transistor T1 connects signal output part 18 pin of main control integrated circuit U1, source ground, be connected on after the heating resistor RA1-RA5 parallel connection between the drain electrode of supply voltage VDD and field effect transistor T1, resistance R 37 is connected in parallel between the grid and source electrode of field effect transistor T1; The grid of field effect transistor T2 connects signal output part 19 pin of main control integrated circuit U1, source ground, be connected on after the heating resistor RB1-RB5 parallel connection between the drain electrode of supply voltage VDD and field effect transistor T2, resistance R 17 is connected in parallel between the grid and source electrode of field effect transistor T2.
Information storage circuit is made up of information storage integrated circuit U9 and capacitor C 17, and digital signal input end 5,6 pin of information storage integrated circuit U9 connect digital signal output end 9,10 pin of analog-digital conversion ic U5 respectively.
Voltage detecting circuit is made up of analog-digital conversion ic U5 and sampling resistor R42, R43, the positive pole of the termination storage battery BAT1 of sampling resistor R43, ground connection after the other end is connected with resistance R 42, the public connecting end of sampling resistor R42, R43 connects input end of analog signal 1 pin of analog-digital conversion ic U5.
Voice warning circuit is made up of fragmented storage speech IC U9, resistance R 36, polar capacitor C18 and loudspeaker SKP1, input end 1 pin of main control integrated circuit U1, signal output part 2,3 pin connect input end 4 pin, signal input part 5,24 pin of fragmented storage speech IC U9 respectively, and the two ends of loudspeaker SKP1 connect signal output part 13,14 pin of fragmented storage speech IC U9 respectively.
Microcomputer interface circuit is made up of interface integrated circuit U6, interface socket J7 and polar capacitor C13-C16, contact 2,3 pin of interface socket J7 are connected with signal output part 7 pin, signal input part 8 pin of interface integrated circuit U6 respectively, and signal output part 9 pin of interface integrated circuit U6, signal input part 10 pin connect signal input part 5 pin, signal output part 7 pin of main control integrated circuit U1 respectively.Microcomputer interface circuit is convenient to main control integrated circuit U1 and microcomputer carries out exchanges data, and is subjected to system controlled by computer.
Charging circuit is by field effect transistor Q1, triode Q3, diode D3 and resistance R 18, R19, R44, R46, R47 forms, signal controlling end 12 pin of one termination main control integrated circuit U1 of resistance R 18, the base stage of another termination triode Q3, the grounded emitter of triode Q3, collector and the grid that meets field effect transistor Q1 after resistance R 47 is connected, resistance R 19 is connected in parallel between the base stage and ground of triode Q3, the source electrode of field effect transistor Q1 meets supply voltage VDD, the drain electrode of field effect transistor Q1 connects the anode of diode D3, the negative electrode of diode D3 and the positive pole that meets battery BAT1 after resistance R 44 is connected, resistance R 46 is connected in parallel between the grid and source electrode of field effect transistor Q1.
Liquid crystal display circuit is made up of LCDs LCD1, connector J1, triode Q31, resistance R 30-R32, R45 and capacitor C 11, signal output part 21,43,44 pin of main control integrated circuit U1 link to each other with LCDs LCD1 through contact 4,5,6 pin of connector J1 respectively, signal output part 11 pin of main control integrated circuit U1 and the base stage that meets triode Q31 after resistance R 45 is connected, the emitter of triode Q31 connects+5V voltage, and collector links to each other with LCDs LCD1 through the contact 7 of connector J1.
Reset circuit is made up of two grades of single-pole switch SW2, diode D4, resistance R 11, R23, polar capacitor C7 and capacitor C 11, reset terminal 4 pin of main control integrated circuit U1 connect the common port of diode D4 negative electrode and polar capacitor C7 negative pole, the plus earth of diode D4, the positive pole of polar capacitor C7 connects+5V voltage, keyboard end 13 pin of main control integrated circuit U1 connect the middle end points of two grades of single-pole switch SW2, resistance R 11 be connected on the middle end points that pulls out gear switch SW2 and+5V voltage between, the outer end points ground connection of two grades of single-pole switch SW2, another outer end points sky connects.
Power circuit is by integrated regulator U3, DPTT double-pole triple throw power switch SW1, external electric supply socket P1, diode D1, computing amplification circuit U8, resistance R 13, R15, R20, R25 and polar capacitor C1-C3, C6 forms, contact 1 pin of external electric supply socket P1 connects the contact 1 of dpdt double-pole double-throw (DPDT) power switch SW1, the common port of 4 pin and diode D1 negative electrode, the anode of diode D1 connects the positive pole of storage battery BAT1, contact 1 pin of external electric supply socket P1 with connect negative input end 6 pin of computing amplification circuit U8 and the common port of resistance R 15 1 ends after resistance R 13 is connected, the other end ground connection of resistance R 15, positive input terminal 5 pin of computing amplification circuit U8 connect the resistance R 20 of mutual series connection, the common port of R25, another termination+5V voltage of resistance R 20, the other end ground connection of resistance R 25, output terminal 7 pin of computing amplification circuit U8 connect power supply test side 10 pin of main control integrated circuit U1, the contact 2 of DPTT double-pole triple throw power switch SW1,3,5, the equal output supply voltage VDD of 6 pin.Wherein DPTT double-pole triple throw power switch SW1 be used for control be to charge to storage battery BAT1, still allow storage battery BAT1 normal power supply, (1), when the voltage of external power supply during greater than the voltage of storage battery BAT1, diode D1 ends, power by external power supply, main control integrated circuit U1 can control field effect transistor Q1, triode Q3 simultaneously, makes external power supply through external electric supply socket P1, DPTT double-pole triple throw power switch SW1, diode D3,44 pairs of storage battery BAT1 chargings of resistance R; (2), when the voltage of external power supply during less than the voltage of storage battery BAT1, by storage battery BAT1 power supply, through DPTT double-pole triple throw power switch SW1, the one tunnel for the heat driven circuit, export burning voltage+5V after the other end process integrated regulator U3 voltage stabilizing, for other each circuit provides power supply.
Input keyboard is made up of left input keyboard, right input keyboard and connector J3, J4, left input keyboard, links to each other with main control integrated circuit U1 through connector J3, and right input keyboard links to each other with main control integrated circuit U1 through connector J4.
Before the use, configure these three parameters of heating-up temperature, retention time and developing time earlier, and need make temperature calibration.
Voltage detecting circuit is formed bleeder circuit by resistance R 42, R43, detects supply voltage for main control integrated circuit U1;
1. when operate as normal: supply voltage VDD input voltage is lower than 11.4V but when being higher than 8V, main control integrated circuit U1 formulates to inner storage battery power supply, only drives the heating of one road heating resistor this moment; Main control integrated circuit U1 formulates and is the external power supply power supply when supply voltage VDD input voltage is higher than 11.4V, and drive two-way 6 heating resistors and heat simultaneously this moment.When supply voltage VDD input voltage 9V, show flicker, the prompting charging, but still can work.But main control integrated circuit U1 can close all operations and show that this moment must charging when supply voltage VDD input voltage is lower than 8V.
2. when charged state following time (must have this moment external power supply to supply with), main control integrated circuit U1 can output low level make triode Q3, field effect transistor Q1 conducting, and external power supply is through supply socket P1, DPTT double-pole triple throw power switch SW1, diode D3,44 pairs of storage battery BAT1 chargings of resistance R.
3, use: the temperature sensor U4 in the temperature sensing circuit detects water temperature earlier, signal is delivered to main control integrated circuit U1 and is handled after amplifying, main control integrated circuit U1 control again the heat driven circuit field effect transistor T1 and or the conducting of field effect transistor T2 or end, thereby water is heated or stops heating, to keep the temperature constant of water.
Claims (4)
1, a kind of garden stuff pesticide residue analyzer, comprise reset circuit, liquid crystal display circuit, power circuit and input keyboard, feature is also to comprise central controller, temperature sensing circuit, heat driven circuit and information storage circuit, wherein central controller is made up of main control integrated circuit (U1), electric capacity (C8, C9) and crystal oscillator (Y1), crystal oscillator (Y1) and electric capacity (C8, C9) constitute crystal oscillating circuit, vibration end (14, the 15) pin of two termination main control integrated circuit (U1) of crystal oscillator (Y1); Temperature sensing circuit is by temperature sensor (U4), computing amplification circuit (U8), analog-digital conversion ic (U5), resistance (R39-R41), polar capacitor (C4, C5) form, signal output part (2) pin of temperature sensor (U4) connects positive input terminal (3) pin of computing amplification circuit (U8), output terminal (1) pin of computing amplification circuit (U8) and input end of analog signal (3) pin that meets analog-digital conversion ic (U5) after resistance (R39) is connected, the digital signal output end (9 of analog-digital conversion ic (U5), 10) pin connects the temperature detection end (41 of main control integrated circuit (U1) respectively, 42) pin, resistance (R40) is connected in parallel between negative input end (2) pin and output terminal (1) pin of computing amplification circuit (U8), and resistance (R41) is connected between negative input end (2) pin and ground of computing amplification circuit (U4); The heat driven circuit is made up of two field effect transistor (T1, T2), resistance (R17, R37) and two-way heating resistor (RA1-RA5, RB1-RB5), the grid of field effect transistor (T1) connects signal output part (18) pin of main control integrated circuit (U1), source ground, be connected on after heating resistor (RA1-RA5) parallel connection between the drain electrode of supply voltage (VDD) and field effect transistor (T1), resistance (R37) is connected in parallel between the grid and source electrode of field effect transistor (T1); The grid of field effect transistor (T2) connects signal output part (19) pin of main control integrated circuit (U1), source ground, be connected on after heating resistor (RB1-RB5) parallel connection between the drain electrode of supply voltage (VDD) and field effect transistor (T2), resistance (R17) is connected in parallel between the grid and source electrode of field effect transistor (T2); Information storage circuit is made up of information storage integrated circuit (U9) and electric capacity (C17), and the digital signal input end of information storage integrated circuit (U9) (5,6) pin connects digital signal output end (9, the 10) pin of analog-digital conversion ic (U5) respectively.
2, garden stuff pesticide residue analyzer as claimed in claim 1, it is characterized in that: also comprise voltage detecting circuit and charging circuit, voltage detecting circuit is made up of analog-digital conversion ic (U5) and sampling resistor (R42, R43), the positive pole of one termination storage battery (BAT1) of sampling resistor (R43), ground connection after the other end is connected with resistance (R42), the public connecting end of sampling resistor (R42, R43) connects input end of analog signal (1) pin of analog-digital conversion ic (U5); Charging circuit is by field effect transistor (Q1), triode (Q3), diode (D3) and resistance (R18, R19, R44, R46, R47) form, signal controlling end (12) pin of one termination main control integrated circuit (U1) of resistance (R18), the base stage of another termination triode (Q3), the grounded emitter of triode (Q3), collector and the grid that meets field effect transistor (Q1) after resistance (R47) is connected, resistance (R19) is connected in parallel between the base stage and ground of triode (Q3), the source electrode of field effect transistor (Q1) connects supply voltage (VDD), the drain electrode of field effect transistor (Q1) connects the anode of diode (D3), the negative electrode of diode (D3) and the positive pole that meets battery (BAT1) after resistance (R44) is connected, resistance (R46) is connected in parallel between the grid and source electrode of field effect transistor (Q1).
3, garden stuff pesticide residue analyzer as claimed in claim 2, it is characterized in that: also comprise voice warning circuit, voice warning circuit is by fragmented storage speech IC (U9), resistance (R36), polar capacitor (C18) and loudspeaker (SKP1) are formed, input end (1) pin of main control integrated circuit (U1), signal output part (2,3) pin connects input end (4) pin of fragmented storage speech IC (U9) respectively, signal input part (5,24) pin, the two ends of loudspeaker (SKP1) connect the signal output part (13 of fragmented storage speech IC (U9) respectively, 14) pin.
4, as claim 2 or 3 described garden stuff pesticide residue analyzers, it is characterized in that: microcomputer interface circuit is made up of interface integrated circuit (U6), interface socket (J7) and polar capacitor (C13-C16), the contact of interface socket (J7) (2,3) pin is connected with signal output part (7) pin, signal input part (8) pin of interface integrated circuit (U6) respectively, and signal output part (9) pin of interface integrated circuit (U6), signal input part (10) pin connect signal input part (5) pin, signal output part (7) pin of main control integrated circuit (U1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200926965U CN201184869Y (en) | 2008-03-21 | 2008-03-21 | Determinator for fruit and vegetables pesticide residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200926965U CN201184869Y (en) | 2008-03-21 | 2008-03-21 | Determinator for fruit and vegetables pesticide residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184869Y true CN201184869Y (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200926965U Expired - Fee Related CN201184869Y (en) | 2008-03-21 | 2008-03-21 | Determinator for fruit and vegetables pesticide residue |
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| CN (1) | CN201184869Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095456A (en) * | 2019-04-12 | 2019-08-06 | 中国农业科学院烟草研究所(中国烟草总公司青州烟草研究所) | A kind of tobacco virus detection display and application method |
-
2008
- 2008-03-21 CN CNU2008200926965U patent/CN201184869Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095456A (en) * | 2019-04-12 | 2019-08-06 | 中国农业科学院烟草研究所(中国烟草总公司青州烟草研究所) | A kind of tobacco virus detection display and application method |
| CN110095456B (en) * | 2019-04-12 | 2021-08-20 | 中国农业科学院烟草研究所(中国烟草总公司青州烟草研究所) | Tobacco virus detection and development device and use method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 |