CN2163510Y - Intelligent culture box for seed and seedling - Google Patents

Abstract

The utility model relates to an intelligent culture box for seed and seedling, and the technical proposal is that heat-insulating material is filled between the two box bodies, and a temperature measuring sensor, a semiconductor refrigerator, an electric heater and a fan are equipped in the box body. A controlling circuit comprising a temperature transmitter, an analogue to digital converter and a single chip machine is equipped between the two box bodies. The advantages of the utility model are adopting single chip machine full-automatic controlling, advanced circuit, high integrated level, few fault, stable performance and convenient maintenance; The semiconductor refrigerator is with cooling speed and without noise, owing to taking water as medium and conducting heat by fan and emitting moisture, the device can timing supplementary fresh air and assure temperature requirement.

Description

Intelligent culture box for seed and seedling

The utility model relates to a kind of smart seed seedling incubator.

At present, the still electrothermostat that percentage of seedgermination and seedling check are generally adopted, unglazed photograph, no humidity in the case, not cooling, the requirement that does not reach test stone.The seed germination box that develops by refrigerator that occurs in recent years, it adopts Lyons refrigeration of compressor fluorine, not only contaminated environment but also exist noise big, be afraid of vibrations, be afraid of to tilt, leak air, ice stifled sometimes, not only do not have humidity not satisfy the requirement of test stone yet.

The purpose of this utility model provides a kind of smart seed seedling incubator that adopts single chip microcomputer 8031 to carry out the computer Automatic Control, it can carry out high low temperature automatic temperature changing by the time of test stone requirement, the cooling of employing semiconductor cooler, speed is fast, noiselessness, in the case be medium and, distribute moisture, regularly replenish fresh air by fan conduction heat with water, guarantee humidity requirement, can reach the pertinent regulations of international seed testing rules.

The purpose of this utility model is achieved in that it comprises casing, temperature transducer, the refrigerator that the conductor refrigeration sheet is formed, electric heating tube and microcomputer control circuit plate, on the tank surface instrument face plate temperature is housed, time figure and display screen and height, low temperature is set dial, and button, indicator lamp, switch, power line is housed in the case, it is characterized in that: filled heat insulating material between the two tanks, with temperature transducer, semiconductor cooler, electric heater, fan combines in the casing, by temperature transmitter, analog-digital converter, single-chip microcomputer, address latch, the control circuit that the I/O interface chip is formed places in the middle of the two tanks.

The utility model has the advantages that and adopt the single-chip microcomputer Automatic Control, the circuit advanced person, the integrated level height, fault is few, and stable performance is easy to maintenance; The semiconductor cooler cooling rate is fast, noiselessness, is that medium conducts heat by fan with water, distributes moisture, can regularly replenish fresh air, has guaranteed temperature requirement, can reach the pertinent regulations of international seed testing rules.

Do the embodiment explanation below in conjunction with accompanying drawing.

Fig. 1 is shell of the present utility model and interior schematic diagram.

Fig. 2 is the electrical principle block diagram.

As shown in Figure 1, casing is made up of shell 16, interior case 17, instrument face plate 3, two side stands 19 and castor 14, and casing is a two storied gate, is made up of upper strata door 1, lower floor's door 2; Filled heat insulating material between the interior outer container, interior case adopt corrosion resistant plate to make in case get rusty.Upper ends in rear box space 5 has an electric system component plate 6, and clock 4 is installed on the casing, and the hold-over plate 7 at internal box rear portion, conductor refrigeration sheet 8, fin 9 are closely bound up by adiabatic screw.An air pump 11 is equipped with in the lower end in rear box space 5, and the electric heating tube 12 that places water is arranged at interior case bottom, and there is temperature transducer 10 at the middle part, and culture dish support 20 is arranged on the water surface, and there is fan 15 in the left side, has the outer air pump of a pair of plastic tube and case to communicate on the fan 15 other tank walls.Dc source 13 is installed in bottom half.Two tubes 18 are installed between two.

As shown in Figure 2, temperature sensor BTS gives temperature transmitter TV temperature signal and sends analog-digital converter IC0 again to, IC0 is connected with the P1 mouth of 8031 single-chip microcomputer IC1, the temperature signal of being surveyed is delivered to IC1, IC1 compares temperature value and the set-point of being surveyed, P0 delivery outlet by IC1 is connected with address latch IC2, send low order address by IC2 to memory IC 3, the P2 delivery outlet of IC1 links to each other with memory IC 3, send the high address of IC1 to IC3, the RXD of IC1, TXD and displacement register IC6 connect and compose display, be used for the displays temperature value, delivery outlet by IC3 links to each other with input and output interfaces IC4, and the PB mouth of IC4 outputs signal to photoelectrical coupler IC5, is used to control refrigerator 8 and heater 12, refrigerator 8 is made up of a plurality of cooling pieces, the output PC1 of while IC4, PC0, PA connects four analog switch IC7, IC8, IC9, IC10 reads in desired temperature from the PA mouth, and hour hands were given IC7 in 24 hours, IC8, IC9, the time signal of IC10 alternating temperature.

Operation principle: after connecting power supply, the temperature signal that temperature transducer BTS records is sent into temperature transmitter TV and is become the 0-2V standard signal and give analog-digital converter IC0, single-chip microcomputer IC1 reads in temperature signal from the P1 mouth, if simultaneously the time early 8 o'clock to 16 point ranges again the PA from I/O expansion interface IC4 read in the high temperature setting value, to 8 point ranges, read in the low temperature setting value at 16 o'clock, pressed the control of high temperature setting value in just 8 hours, pressed the low temperature setting value and control in 16 hours.IC1 gives IC2 low order address the temperature value of gathering and after setting value comparison operation from P0 mouth and P2 mouth, gives IC3 the high address.ALE is an address latch signal, low order address is squeezed into IC2, with PSEN signal gating IC3, send P0 mouth with data from the 00-07 of IC3 end, at this moment temperature is if be higher than setting value, the PB1 end output high level of IC4 is given photoelectrical coupler IC5, connect refrigerator and lower the temperature, make spin manifold temperature return to setting value, if the measured temperature value is lower than setting value, PB2 end output high level IC5 connects electric heater, no matter heat up in the case, return to setting value until temperature, be heating or refrigeration, M2 is switched on, and air obtains forced circulation in the case.The M1 air pump was by software delay ventilation in 4 hours 5 minutes, and single-chip microcomputer IC1 also sends video data from PXD, TXD serial port at any time, temperature value in the show case.Clock display T1 sends into the signal of connecting A2, A1 in 8 point-16 IC7, IC8, is to send into to IC9, IC10 during at 16 o'clock to 8 o'clock to connect A3, A4 signal when the time.Illuminance is manually to be controlled by the GK switch.Whole control process is: temperature survey → data acquisition → read setting value → comparison operation → output to control.Thereby constantly repeat this process and realize temperature in the automatic control box.

Claims (1)

1, a kind of smart seed seedling incubator, comprise casing, temperature transducer, the refrigerator that the conductor refrigeration sheet is formed, electric heating tube and microcomputer control circuit plate, on the tank surface instrument face plate temperature is housed, time figure and display screen and height, low temperature is set dial, and button, indicator lamp, switch, power line is housed in the case, it is characterized in that: filled heat insulating material between the two tanks, with temperature transducer, semiconductor cooler, electric heater, fan combines in the casing, by temperature transmitter, analog-digital converter, single-chip microcomputer, address latch, the control circuit that the I/O interface chip is formed places in the middle of the two tanks.

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