CN2747580Y - Intelligent vegetable and fruit fresh-retaining experiment box - Google Patents
Intelligent vegetable and fruit fresh-retaining experiment box Download PDFInfo
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- CN2747580Y CN2747580Y CN 200420150804 CN200420150804U CN2747580Y CN 2747580 Y CN2747580 Y CN 2747580Y CN 200420150804 CN200420150804 CN 200420150804 CN 200420150804 U CN200420150804 U CN 200420150804U CN 2747580 Y CN2747580 Y CN 2747580Y
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Abstract
The intelligent vegetable and fruit fresh-retaining experiment box of the utility model belongs to the determinator of the respiratory intensity of fruits and vegetables, comprising a sealed tank, a magnetic valve, an oxygen sensor, a carbon dioxide sensor, a humiture sensor, an exhauster, an oxygen storage device, a carbon dioxide storage device, a nitrogen storage device, and a self-control device. The exhauster is connected with the sealed tank. The oxygen storage device, the carbon dioxide storage device and the nitrogen storage device are respectively switched in the sealed tank through the magnetic valve. The oxygen sensor, the carbon dioxide sensor and the humiture sensor are installed in the sealed tank, and the self-control device is respectively connected with the oxygen sensor, the carbon dioxide sensor, the humiture sensor and the magnetic valve. The intelligent vegetable and fruit fresh-retaining experiment box can measure the respiratory intensity of fruits and vegetables under the conditions of different temperatures, oxygen and carbon dioxide, with convenient operation and stable measurement condition, and greatly reduces the effect of artificial factors on the experimental result, thus making the experimental result more reliable.
Description
Technical field
The utility model relates to a kind of determinator of fruit and vegetable respiratory intensity, is specifically related to a kind of intelligent antistaling experimental box for fruits and vegetables.
Background technology
Plant physiology is the important specialized core course of university's natural sciences biology direction and eagroforestry direction, in the plant physiology experiment teaching process, the mensuration of vegetable material respiratory intensity is to open one of experiment, traditional experimental technique mainly adopts sub-chemical titration of corbeil or dynamic and static air-flow titrimetry, China's part colleges and universities have purchased the respiratory intensity that infrared carbon dioxide analyzer is measured vegetable material after the eighties, and above-mentioned three class methods can only be measured the respiratory intensity of vegetable material under normal temperature, the air conditions.Can not measure the respiratory intensity of vegetable material under different temperatures, oxygen, carbon dioxide conditions, this problem is particularly important in the plant physiology experimental teaching of agricultural universities and colleges, it is one of important content in postharvest fruit and vegetable physiology teaching, the research, is one of important technology of fruits and vegetables greenization Study on preservation technique.
The utility model content
Technical problem to be solved in the utility model provides a kind of device that can measure the respiratory intensity of fruit and vegetable under different temperatures, oxygen, carbon dioxide conditions.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: intelligent antistaling experimental box for fruits and vegetables, comprise seal box, solenoid valve, oxygen sensor, carbon dioxide sensor, Temperature Humidity Sensor, air extractor, the oxygen memory storage, carboloy dioxide storage plant, nitrogen memory storage and self-con-tained unit, air extractor is connected with seal box, the oxygen memory storage, carboloy dioxide storage plant, the nitrogen memory storage inserts in the seal box respectively by solenoid valve, oxygen sensor, carbon dioxide sensor, Temperature Humidity Sensor is installed in the seal box, self-con-tained unit and oxygen sensor, carbon dioxide sensor, Temperature Humidity Sensor is connected respectively with solenoid valve.
Described intelligent antistaling experimental box for fruits and vegetables, its closed box are refrigerator, and air extractor is an aspiration pump, and oxygen, carbon dioxide, nitrogen memory storage are oxygen, carbon dioxide, nitrogen cylinder; Because the oxygen content in the atmosphere is about 21%, under measuring hypoxia condition during the fruit and vegetable respiratory intensity, can divide the 3-5 step that the gas in the refrigerator is extracted into below the condition of setting by aspiration pump earlier, cannot once gas in the case be found time, in order to avoid it is relatively more responsive to the low pressure condition to shorten the serviceable life, particularly oxygen sensor of sensor.
Described intelligent antistaling experimental box for fruits and vegetables, its self-con-tained unit comprise power supply unit, CPU control module, detecting unit, switching value output unit, analog to digital converter and display unit; Power supply unit is powered to entire circuit, and detecting unit changes detected signal into the digital signal Input Control Element through analog to digital converter, the switch of control module gauge tap amount output unit and the demonstration of display unit.
Described intelligent antistaling experimental box for fruits and vegetables, its CPU control module comprises single-chip microcomputer, house dog, storer, interface, single-chip microcomputer is connected with house dog, storer, interface, switching value output unit, analog to digital converter respectively.
Described intelligent antistaling experimental box for fruits and vegetables, its display unit comprises register, interface, LED, triode, button, interface one tunnel is connected, leads up to resistance with the interface of control module and is connected with the LED interface with triode, and register one tunnel and the interface of control module are connected, lead up to resistance and is connected with the LED interface, the one tunnel is connected with button.
Described intelligent antistaling experimental box for fruits and vegetables, its power supply unit comprise two voltage stabilizers and a rectifier bridge that is constituted by a diode.
Described intelligent antistaling experimental box for fruits and vegetables, its detecting unit is by Temperature Detector, moisture detector, O
2Gas detecting device, CO
2Detecting device and diode are formed.
Described intelligent antistaling experimental box for fruits and vegetables, its switching value output unit is made up of diode, triode, resistance and four relays.
Compared with prior art the beneficial effect that the utility model had is: by device of the present utility model, can measure the variation of the respiratory intensity of different oxygen content fruit and vegetables under uniform temperature, the carbon dioxide conditions; Under uniform temperature, the oxygen condition, different carbon dioxide contents are to the influence of fruit and vegetable respiratory intensity; Under certain oxygen, the carbon dioxide conditions, the respiratory intensity of fruit and vegetable under the condition of different temperatures.According to Pasteur effect, the oxygen demand in the time of can measuring the minimum respiratory intensity of fruit and vegetable fruit and vegetable under different temperatures, carbon dioxide conditions provides reliable gross data thereby transfer preservation technique for fruit and vegetable.This device is easy to operate, and condition determination is stable, the size of respiratory intensity, and directly the variation by carbon dioxide shows on display screen, has significantly reduced the influence of human factor to experimental result, thereby has made experimental result more reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the schematic block circuit diagram of the utility model embodiment;
Fig. 3 is the circuit diagram of the utility model embodiment display unit;
Fig. 4 is the circuit diagram of the utility model embodiment.
Embodiment
1 aspiration pump, 2 refrigerators, 3 oxygen sensors, 4 carbon dioxide sensors, 5 Temperature Humidity Sensors, 6 self-con-tained units, 7 magnetic valves, 8 oxygen cylinders, 9 nitrogen cylinders, 10 carbon dioxide cylinder U1 register U2 house dog U3 analog-digital converter U4 single-chip microcomputer U5 memory R1-R33 resistance D1-D12 diode P1-P8 triode J1-J4 relay C1-C11 electric capacity JP1-JP2 interface PR1 resistor N1-N4 triode V1-V2 voltage-stablizer Z1 temperature and pressure diode S1-S6 buttons
Shown in Fig. 1-2: oxygen sensor 3, carbon dioxide sensor 4, Temperature Humidity Sensor 5 are installed in the refrigerator 2, aspiration pump 1 links to each other with refrigerator 2, oxygen sensor 3, carbon dioxide sensor 4, temperature sensor 5 are connected with self-con-tained unit 6, self-con-tained unit 6 is connected with welding bottle 8, carbon dioxide cylinder 10, nitrogen cylinder 9 respectively by solenoid valve 7, and welding bottle 8, carbon dioxide cylinder 10, nitrogen cylinder 9 are connected with refrigerator 2 respectively.Microcontroller CPU is as processing enter; Provide button to be used to be provided with the startup threshold, and definite value is kept in the storer, realize friendly man-machine interface by display; Monitoring in real time also can show by display to temperature, humidity, carbon dioxide, concentration of oxygen by high-precision A/D, when it surpasses threshold, just start the operation valve of compressor, humidifier, carbon dioxide and oxygen respectively by control output, temperature, humidity, carbon dioxide, concentration of oxygen are implemented compensation, it is stabilized in the predetermined scope.
As shown in Figure 3-4: 1 pin of analog to digital converter U3～4 pin by resistance R 26～R29, R30～R33 ground connection, meet Vcc by diode D9～D12 respectively respectively; The simulating signal that 1 pin of analog to digital converter U3～4 pin input temp detecting devices, moisture detector, O2 detecting device, CO2 detecting device are gathered; 5 pin of analog to digital converter U3～13 pin ground connection; Be connected to capacitor C 2 and E1 between 13 pin of analog to digital converter U3 and 20 pin; 14 pin of analog to digital converter U3 connect+5V; 20 pin of analog to digital converter U3 meet Vcc.
1 pin of single-chip microcomputer U4～5 pin are connected to 15 pin～19 pin of analog to digital converter U3; 6 pin of single-chip microcomputer U4,7 pin meet input IN1, IN2 respectively; 21 pin of single-chip microcomputer U4,22 pin, 23 pin, 24 pin are connected on 4 pin, 3 pin, 2 pin, 1 pin of storer U5 respectively; 28 pin of single-chip microcomputer U4 are connected 6 pin of watchdog circuit U2; 9 pin of single-chip microcomputer U4 are connected 7 pin of watchdog circuit U2; 10 pin of single-chip microcomputer U4,11 pin are connected to 5 pin and 4 pin of interface JP1; Be connected to crystal oscillator JT between 18 pin of single-chip microcomputer U4 and 19 pin, and respectively by capacitor C 4, C3 ground connection; The 31 pin ground connection of single-chip microcomputer U4.
17 pin of single-chip microcomputer U4 drive relay J 1 by resistance R 13, R14, R15, triode P5, N1 and diode D5; 16 pin of single-chip microcomputer U4 drive relay J 2 by resistance R 16, R17, R18, triode P6, N2 and diode D6; 15 pin of single-chip microcomputer U4 drive relay J 3 by resistance R 19, R20, R21, triode P7, N3 and diode D7; 14 pin of single-chip microcomputer U4 drive relay J 4 by resistance R 22, R23, R24, triode P8, N4 and diode D8.
39 pin of single-chip microcomputer U4 are connected on 2 pin of resistor PR1 and 3 pin of interface JP1; 38 pin of single-chip microcomputer U4 are connected on 3 pin of resistor PR1; 37 pin of single-chip microcomputer U4 are connected on 4 pin of resistor PR1; 36 pin of single-chip microcomputer U4 are connected on 5 pin of resistor PR1 and 6 pin of interface JP1; 35 pin of single-chip microcomputer U4 are connected on 6 pin of resistor PR1 and 7 pin of interface JP1; 34 pin of single-chip microcomputer U4 are connected on 7 pin of resistor PR1 and 8 pin of interface JP1; 33 pin of single-chip microcomputer U4 are connected on 8 pin of resistor PR1 and 9 pin of interface JP1.
2 pin, 4 pin of watchdog circuit U2 meet Vcc, and and 3 pin between be connected to capacitor C 9～C11; The 3 pin ground connection of watchdog circuit U2; 1 pin of watchdog circuit U2 links to each other with 8 pin.
5 pin of storer U5,6 pin, 7 pin ground connection; Be connected to capacitor C 5 between 8 pin and 5 pin; 5 pin of watchdog circuit U2 are connected on 3 pin of voltage stabilizer V1 by temperature and pressure diode Z1 and resistance R 25.
Diode D1～D4 is connected between 1 pin and 2 pin of voltage stabilizer V1 after forming the filtering of rectifier bridge by capacitor C 6 and E3; Be connected to capacitor C 7 and E2 between 3 pin of voltage stabilizer V1 and 2 pin, be connected on then between 1 pin and 2 pin of voltage stabilizer V2; Be connected to electric capacity E4, C8 between 3 pin of voltage stabilizer V2 and 2 pin.
Interface JP2 is connected with interface JP1; The 1 pin ground connection of interface JP2; 2 pin meet Vcc; 4 pin of interface JP2 connect 8 pin of register U1; 5 pin of interface JP2 connect 1 pin and 2 pin of register U1; 6 pin of interface JP2～9 pin are connected on LED interface 6 pin, 8 pin, 9 pin, 12 pin driven for emitting lights by resistance R 1, R2, R3, R4 and triode P1～P4 respectively.
9 pin of register U1 link to each other with 14 pin, meet Vcc, and and ground between be connected to capacitor C 1,7 pin ground connection; 3 pin of register U1～6 pin and 10 pin～13 pin are connected on 11 pin, 7 pin, 4 pin, 2 pin, 1 pin, 10 pin, 5 pin, 3 pin of LED interface respectively by resistance R 12, R11, R10, R9, R8, R7, R6, R5.
Self-con-tained unit of the present utility model adopts 6 buttons, 4 0.5 " LED display, 5 φ 3 light emitting diodes difference indicated temperatures, humidity, oxygen, carbon dioxide and duties; The input of No. four sensors is connected with oxygen sensor, carbon dioxide sensor, Temperature Humidity Sensor respectively; Four tunnel control outputs are made up of two-way valve gate control, the control of No. one humidifier and the control of one tunnel temperature, and the two-way valve gate control is connected with solenoid valve respectively.In operation during show state, 4 0.5 " the LED display currency of displays temperature, humidity, oxygen, carbon dioxide successively, and corresponding light emitting diode is lighted.6 buttons are: function key-at the operation show state, this key can make display screen enter the parameter show state; Add key-at the parameter show state, this key is the setting value of displays temperature, humidity, oxygen, carbon dioxide successively, and at the digital editing state, it increases the numeral of selecting; Options button-at the parameter show state, this key can make demonstration enter the digital editing state, and at the digital editing state, it moves right one to cursor; Substract key-at the parameter show state, this key can show the setting value of carbon dioxide, oxygen, humidity, temperature successively, at the digital editing state, and the numeral that it reduces to select; ESC Escape-at the parameter show state, this key can make demonstration return running status, and at the digital editing state, it can stop editing and processing and not change original setting value; Enter key-at the digital editing state, this key can make setting value come into force.
The operating process of the utility model intelligent antistaling experimental box for fruits and vegetables is as follows: fruit and vegetable to be measured is put into refrigerator 2, good seal refrigerator lid; Insert good power supply, open oxygen cylinder valve; Concentration of oxygen, gas concentration lwevel, humiture are set; Opening aspiration pump 1 is extracted into the oxygen in the refrigerator below the condition of setting, because the oxygen content in the atmosphere is about 21%, under measuring hypoxia condition during the fruit and vegetable respiratory intensity, can divide the 3-5 step that the gas in the refrigerator is extracted into below the condition of setting by aspiration pump earlier, cannot once gas in the case be found time, in order to avoid it is relatively more responsive to the low pressure condition to shorten the serviceable life, particularly oxygen sensor of sensor; Replenish nitrogen after bleeding immediately, so just oxygen and gas concentration lwevel can be lowered, can not make when in this operating process, necessarily noting nitrogen injection and reach atmospheric pressure state in the casing, to be lower than an atmospheric pressure slightly, oxygen and carbon dioxide so that reinject, and inflate and when bleeding all can make in the case gas moment be in inhomogeneous state at every turn, concentration value is unsettled in the meantime, just can reach steady state (SS) after a time.The oxygen of fruits and vegetables and carbon dioxide content, humiture are after the sensor impression in the refrigerator 2, through analog to digital converter U3 signal is passed to single-chip microcomputer U4, single-chip microcomputer U4 control display unit is read on display screen, after setting oxygen concentration, gas concentration lwevel, humiture numerical value, self-con-tained unit begins imposing a condition down, change by humiture, oxygen, carbon dioxide in the solenoid valve 7 control refrigerators, stop up to reaching setting value.
Observe the variation of gas concentration lwevel on the controller display screen, the fruit and vegetable of unit weight predicts the respiratory intensity of fruit and vegetable in the burst size of different temperatures, oxygen condition carbon dioxide in the record unit time according to the burst size of carbon dioxide.
Claims (8)
1. intelligent antistaling experimental box for fruits and vegetables, it is characterized in that: comprise seal box, solenoid valve, oxygen sensor, carbon dioxide sensor, Temperature Humidity Sensor, air extractor, the oxygen memory storage, carboloy dioxide storage plant, nitrogen memory storage and self-con-tained unit, air extractor is connected with seal box, the oxygen memory storage, carboloy dioxide storage plant, the nitrogen memory storage inserts in the seal box respectively by solenoid valve, oxygen sensor, carbon dioxide sensor, Temperature Humidity Sensor is installed in the seal box, self-con-tained unit and oxygen sensor, carbon dioxide sensor, Temperature Humidity Sensor is connected respectively with solenoid valve.
2. intelligent antistaling experimental box for fruits and vegetables according to claim 1 is characterized in that: closed box is a refrigerator, and air extractor is an aspiration pump, and oxygen, carbon dioxide, nitrogen memory storage are oxygen, carbon dioxide, nitrogen cylinder.
3. intelligent antistaling experimental box for fruits and vegetables according to claim 1 and 2 is characterized in that: self-con-tained unit comprises power supply unit, CPU control module, detecting unit, switching value output unit, analog to digital converter U3 and display unit.
4. intelligent antistaling experimental box for fruits and vegetables according to claim 3, it is characterized in that: the CPU control module comprises single-chip microcomputer U4, house dog U2, storer U5, interface JP1, and single-chip microcomputer U4 is connected with house dog U2, storer U5, interface JP1, switching value output unit, analog to digital converter U3 respectively.
5. intelligent antistaling experimental box for fruits and vegetables according to claim 3, it is characterized in that: display unit comprises register U1, interface JP2, LED, triode P1～P4, button S1-S6, interface JP2 one tunnel is connected, leads up to resistance with interface JP1 and is connected with the LED interface with triode P1～P4, and register U1 one tunnel and interface JP2 are connected, lead up to resistance and be connected with the LED interface, the one tunnel be connected with button S1-S6.
6. intelligent antistaling experimental box for fruits and vegetables according to claim 3 is characterized in that: power supply unit comprises two voltage stabilizer V1, V2 and a rectifier bridge of being made up of diode D1-D4.
7. intelligent antistaling experimental box for fruits and vegetables according to claim 3 is characterized in that: detecting unit is made up of Temperature Detector, moisture detector, O2 gas detecting device, CO2 detecting device and diode D9-D12.
8. intelligent antistaling experimental box for fruits and vegetables according to claim 4 is characterized in that: the switching value output unit is made up of diode, triode, resistance and four relays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420150804 CN2747580Y (en) | 2004-11-22 | 2004-11-22 | Intelligent vegetable and fruit fresh-retaining experiment box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420150804 CN2747580Y (en) | 2004-11-22 | 2004-11-22 | Intelligent vegetable and fruit fresh-retaining experiment box |
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| Publication Number | Publication Date |
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| CN2747580Y true CN2747580Y (en) | 2005-12-21 |
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| CN 200420150804 Expired - Fee Related CN2747580Y (en) | 2004-11-22 | 2004-11-22 | Intelligent vegetable and fruit fresh-retaining experiment box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842185A (en) * | 2016-05-31 | 2016-08-10 | 华中农业大学 | Device and method for detecting respiration of chicken eggs |
| CN110554157A (en) * | 2019-09-12 | 2019-12-10 | 中国农业大学 | device and method for measuring postharvest physiological parameters of fruits and vegetables |
-
2004
- 2004-11-22 CN CN 200420150804 patent/CN2747580Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842185A (en) * | 2016-05-31 | 2016-08-10 | 华中农业大学 | Device and method for detecting respiration of chicken eggs |
| CN110554157A (en) * | 2019-09-12 | 2019-12-10 | 中国农业大学 | device and method for measuring postharvest physiological parameters of fruits and vegetables |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |