CN105068575A - An agricultural product cultivating constant temperature control circuit - Google Patents
An agricultural product cultivating constant temperature control circuit Download PDFInfo
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- CN105068575A CN105068575A CN201510552710.XA CN201510552710A CN105068575A CN 105068575 A CN105068575 A CN 105068575A CN 201510552710 A CN201510552710 A CN 201510552710A CN 105068575 A CN105068575 A CN 105068575A
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Abstract
The invention provides an agricultural product cultivating constant temperature control circuit comprising a power supply circuit and a temperature detection control circuit. The power supply circuit comprises a drain resistor, rectifier diodes, a voltage stabilizing diode, a voltage reduction capacitor and a filter capacitor, wherein the drain resistor, the voltage reduction capacitor and the rectifier diodes are connected in parallel. One rectifier diode is connected with the filter capacitor and the voltage stabilizing diode connected in parallel. The temperature control circuit comprises an integrated chip IC, a thermosensitive resistor, a potentiometer, a resistor, a thyristor and a heating wire. The control circuit is reasonable in structural design, high in control accuracy and low in energy consumption, facilitates operation, is convenient to use and low in manufacture cost, is generally applicable to constant temperature cultivation of various kinds of agricultural products, and can greatly guarantee the cultivation yield and time and increase the efficiency and yield.
Description
Technical field
The invention belongs to agricultural automation control technology field, be specifically related to a kind of agricultural product and cultivate constant temperature control circuit.
Background technology
China's agricultural is in the new stage transformed to the agricultural modernization being target with high-quality, high yield, high efficiency from traditional agriculture, chamber planting is as the important means improving agricultural production efficiency, increasingly extensive in the application of modern agriculture, greenhouse flower engineering, as the means of agro-ecology fast-growing, high-quality, high yield, is the important symbol of agricultural modernization.In recent years along with the quality of raising to rice of popular life level is had higher requirement, the method promoting rice quality with chamber planting paddy rice obtains more and more application in the high-end ecological agriculture.
At present, no matter be based on distribute control structure, or based on the greenhouse Data Control of field bus technique and transmission control system, its signal transmission form is mostly wire transmission, namely by the signal between cable transmission various kinds of sensors and topworks.But due to the complexity that connects up, and greenhouse environment humidity is high, illumination strong, has certain acidity, makes the reliability of system and interference free performance decrease, add the difficulty of later maintenance.
Summary of the invention
Goal of the invention: the object of the invention is to solve deficiency of the prior art, provide a kind of circuit structure design reasonable, control accuracy is high and energy consumption is little, is easy to operation, easy to use, and constant temperature control circuit cultivated by the agricultural product that cost of manufacture is cheap.
Technical scheme: constant temperature control circuit cultivated by a kind of agricultural product of the present invention, comprise power circuit and temperature detection control circuit, described power circuit is made up of drain resistor R1, commutation diode VD1, VD2, voltage stabilizing diode VS, decompression capacitor C1, filter capacitor C2, described drain resistor R1, decompression capacitor C1 and commutation diode VD1, VD2 are connected in parallel respectively, and described commutation diode VD2 is also connected with filter capacitor C2 parallel with one another and voltage stabilizing diode VS, described temperature-control circuit is by integrated chip IC, thermal resistor RT, potentiometer RP1 ~ RP3, resistor R2 ~ R4, thyristor VT and heating wire EH forms, 6 pin of described integrated chip are connected with potentiometer RP1, described potentiometer RP1 is connected to thermal resistor RT and potentiometer RP2, described potentiometer RP2 is also connected with 2 pin of integrated chip IC, 5 pin of described integrated chip IC are connected with potentiometer RP3, 7 pin of described integrated chip IC are connected with resistor R2 and the light emitting diode VL1 of series connection, 3 pin of described integrated chip IC are connected with and are parallel with one anotherly connected with resistor R4 and light emitting diode VL2, described resistor R4 is also connected with thyristor VT and heating wire EH, described light emitting diode VL2 is also connected with resistor R3.
Further, described resistor R1 ~ R4 all selects 1/2W metal film resistor.
Further, described potentiometer RP1 ~ RP3 all selects synthesis membrane potentiometer.
Further, described thermal resistor RT selects negative temperature coefficient thermistor; Or adopting the germanium PNP transistor of a 3AC or 3AX series to replace, during replacement, the e pole of transistor connects+9V power end, and C pole meets RP1, and b is extremely unsettled.
Further, described decompression capacitor C1 selects withstand voltage to be CBB polypropylene capacitor or the dacron terylene condenser of more than 400Y; Filter capacitor C2 selects withstand voltage to be the aluminium electrolutic capacitor of 16V.
Further, described commutation diode VD1 and VD2 all selects 1N4007 type silicon rectifier diode.
Further, described voltage stabilizing diode VS selects the silicon voltage regulator diode of 1W, 9V.
Further, described light emitting diode VL1 and VL2 all selects the common light emitting diode of Φ 5mm.
Further, described thyristor VT selects the two-way crystalline substance of 6A, 600V to ask pipe.
Further, described integrated chip IC selects NE555 integrated chip.
Beneficial effect: control circuit reasonable in design of the present invention, control accuracy is high and energy consumption is little, is easy to operation, easy to use, cost of manufacture is cheap, and general applicability is cultivated in the constant temperature of each agricultural products, greatly can ensure output and the time of cultivation, improve efficiency and output.
Accompanying drawing explanation
Fig. 1 is circuit theory schematic diagram of the present invention.
Embodiment
Constant temperature control circuit cultivated by a kind of agricultural product as shown in Figure 1, comprises power circuit and temperature detection control circuit.
Power circuit is made up of drain resistor R1, commutation diode VD1, VD2, voltage stabilizing diode VS, decompression capacitor C1, filter capacitor C2, described drain resistor R1, decompression capacitor C1 and commutation diode VD1, VD2 are connected in parallel respectively, and described commutation diode VD2 is also connected with filter capacitor C2 parallel with one another and voltage stabilizing diode VS.
Temperature-control circuit is by integrated chip IC, thermal resistor RT, potentiometer RP1 ~ RP3, resistor R2 ~ R4, thyristor VT and heating wire EH forms, 6 pin of described integrated chip are connected with potentiometer RP1, described potentiometer RP1 is connected to thermal resistor RT and potentiometer RP2, described potentiometer RP2 is also connected with 2 pin of integrated chip IC, 5 pin of described integrated chip IC are connected with potentiometer RP3, 7 pin of described integrated chip IC are connected with resistor R2 and the light emitting diode VL1 of series connection, 3 pin of described integrated chip IC are connected with and are parallel with one anotherly connected with resistor R4 and light emitting diode VL2, described resistor R4 is also connected with thyristor VT and heating wire EH, described light emitting diode VL2 is also connected with resistor R3.
Each components and parts in this circuit are selected as follows:
Further, described resistor R1 ~ R4 all selects 1/2W metal film resistor.
Further, described potentiometer RP1 ~ RP3 all selects synthesis membrane potentiometer.
Further, described thermal resistor RT selects negative temperature coefficient thermistor; Or adopting the germanium PNP transistor of a 3AC or 3AX series to replace, during replacement, the e pole of transistor connects+9V power end, and C pole meets RP1, and b is extremely unsettled.
Further, described decompression capacitor C1 selects withstand voltage to be CBB polypropylene capacitor or the dacron terylene condenser of more than 400Y; Filter capacitor C2 selects withstand voltage to be the aluminium electrolutic capacitor of 16V.
Further, described commutation diode VD1 and VD2 all selects 1N4007 type silicon rectifier diode.
Further, described voltage stabilizing diode VS selects the silicon voltage regulator diode of 1W, 9V.
Further, described light emitting diode VL1 and VL2 all selects the common light emitting diode of Φ 5mm.
Further, described thyristor VT selects the two-way crystalline substance of 6A, 600V to ask pipe.
Further, described integrated chip IC selects NE555 integrated chip.
The control principle of this circuit is:
Alternating current 220V voltage after C1 step-down, VD1 and VD2 rectification, VS voltage stabilizing and C2 filtering, for IC provides+9V operating voltage.
When just switching on power, the control temperature that the temperature in equipment sets lower than RP3, now the resistance of RT is comparatively large, and 2 pin of IC and 6 pin voltages are all lower than 5 pin voltages, and 3 pin export high level, and VT is triggered and conducting, and heating wire EH energising starts to heat.Along with the continuous rising of temperature, the resistance of RT diminishes gradually, when temperature reaches design temperature, when 1/2, the 6 pin voltages that the 2 pin voltages of IC are greater than 5 pin voltages are more than or equal to 5 pin voltage, circuit upset in IC, 3 pin output low levels, VT ends, and EH stops heating, and temperature starts to decline gradually, simultaneously the resistance of RT also starts to increase, and makes 2 pin of IC, 6 pin voltages slowly decline.When the 6 pin voltages of IC are less than or equal to 1/2 of 5 pin magnitudes of voltage lower than 5 pin voltages, 2 pin voltages, 3 pin of IC export high level again, make VT conducting, and EH starts again to heat.
Above process is carried out again and again, and controlled temperature can be made constant near design temperature.
When EH is energized work, VL1 extinguishes, and VL2 lights; When EH power-off stops heating, VL1 lights, and VL2 extinguishes.
RP1 and RP2 is used for regulating the temperature difference, and when the 2 pin voltages of IC are identical with 6 pin voltages, the temperature difference is maximum; When the 2 pin voltages of IC are 1/2 of 6 pin magnitudes of voltage, the temperature difference is zero.
Control circuit reasonable in design of the present invention, control accuracy is high and energy consumption is little, and be easy to operation, easy to use, cost of manufacture is cheap, and general applicability is cultivated in the constant temperature of each agricultural products, greatly can ensure output and the time of cultivation, improve efficiency and output.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. constant temperature control circuit cultivated by agricultural product, it is characterized in that: comprise power circuit and temperature detection control circuit, described power circuit is made up of drain resistor R1, commutation diode VD1, VD2, voltage stabilizing diode VS, decompression capacitor C1, filter capacitor C2, described drain resistor R1, decompression capacitor C1 and commutation diode VD1, VD2 are connected in parallel respectively, and described commutation diode VD2 is also connected with filter capacitor C2 parallel with one another and voltage stabilizing diode VS, described temperature-control circuit is by integrated chip IC, thermal resistor RT, potentiometer RP1 ~ RP3, resistor R2 ~ R4, thyristor VT and heating wire EH forms, 6 pin of described integrated chip are connected with potentiometer RP1, described potentiometer RP1 is connected to thermal resistor RT and potentiometer RP2, described potentiometer RP2 is also connected with 2 pin of integrated chip IC, 5 pin of described integrated chip IC are connected with potentiometer RP3, 7 pin of described integrated chip IC are connected with resistor R2 and the light emitting diode VL1 of series connection, 3 pin of described integrated chip IC are connected with and are parallel with one anotherly connected with resistor R4 and light emitting diode VL2, described resistor R4 is also connected with thyristor VT and heating wire EH, described light emitting diode VL2 is also connected with resistor R3.
2. constant temperature control circuit cultivated by a kind of agricultural product according to claim 1, it is characterized in that: described resistor R1 ~ R4 all selects 1/2W metal film resistor.
3. constant temperature control circuit cultivated by a kind of agricultural product according to claim 1, it is characterized in that: described potentiometer RP1 ~ RP3 all selects synthesis membrane potentiometer.
4. constant temperature control circuit cultivated by a kind of agricultural product according to claim 1, it is characterized in that: described thermal resistor RT selects negative temperature coefficient thermistor; Or adopting the germanium PNP transistor of a 3AC or 3AX series to replace, during replacement, the e pole of transistor connects+9V power end, and C pole meets RP1, and b is extremely unsettled.
5. constant temperature control circuit cultivated by a kind of agricultural product according to claim 1, it is characterized in that: described decompression capacitor C1 selects withstand voltage to be CBB polypropylene capacitor or the dacron terylene condenser of more than 400Y; Filter capacitor C2 selects withstand voltage to be the aluminium electrolutic capacitor of 16V.
6. constant temperature control circuit cultivated by a kind of agricultural product according to claim 1, it is characterized in that: described commutation diode VD1 and VD2 all selects 1N4007 type silicon rectifier diode.
7. constant temperature control circuit cultivated by a kind of agricultural product according to claim 1, it is characterized in that: described voltage stabilizing diode VS selects the silicon voltage regulator diode of 1W, 9V.
8. constant temperature control circuit cultivated by a kind of agricultural product according to claim 1, it is characterized in that: described light emitting diode VL1 and VL2 all selects the common light emitting diode of Φ 5mm.
9. constant temperature control circuit cultivated by a kind of agricultural product according to claim 1, it is characterized in that: described thyristor VT selects the two-way crystalline substance of 6A, 600V to ask pipe.
10. constant temperature control circuit cultivated by a kind of agricultural product according to claim 1, it is characterized in that: described integrated chip IC selects NE555 integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510552710.XA CN105068575A (en) | 2015-09-01 | 2015-09-01 | An agricultural product cultivating constant temperature control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510552710.XA CN105068575A (en) | 2015-09-01 | 2015-09-01 | An agricultural product cultivating constant temperature control circuit |
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| CN105068575A true CN105068575A (en) | 2015-11-18 |
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| CN201510552710.XA Pending CN105068575A (en) | 2015-09-01 | 2015-09-01 | An agricultural product cultivating constant temperature control circuit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892528A (en) * | 2016-05-26 | 2016-08-24 | 成都灯岛科技有限公司 | Improved electric heater control circuit |
| CN105928055A (en) * | 2016-05-26 | 2016-09-07 | 成都灯岛科技有限公司 | Electric heater control circuit |
| CN105953302A (en) * | 2016-05-26 | 2016-09-21 | 成都灯岛科技有限公司 | Improved control circuit for electric heater |
| CN106054976A (en) * | 2016-05-26 | 2016-10-26 | 成都灯岛科技有限公司 | Improved electric heater control circuit |
| CN107045371A (en) * | 2017-05-27 | 2017-08-15 | 马鞍山绿丰种业有限公司 | A kind of intelligent vegetable seeds drying system of remote control |
| CN107491120A (en) * | 2017-08-11 | 2017-12-19 | 过成康 | A kind of low cost, high-precision temperature automatic control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201270005Y (en) * | 2008-09-08 | 2009-07-08 | 北京联合大学 | Constant temperature controller for greenhouse |
| CN202720527U (en) * | 2012-06-29 | 2013-02-06 | 童兵 | Constant temperature controller circuit |
| CN103838272A (en) * | 2014-03-16 | 2014-06-04 | 周云侠 | Temperature controller of shoe drying plate |
| CN203860144U (en) * | 2014-06-10 | 2014-10-08 | 刘会东 | Curtain rolling control circuit for agricultural greenhouse |
| CN204557248U (en) * | 2015-04-22 | 2015-08-12 | 郑州职业技术学院 | A kind of electron temperature automaton |
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2015
- 2015-09-01 CN CN201510552710.XA patent/CN105068575A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201270005Y (en) * | 2008-09-08 | 2009-07-08 | 北京联合大学 | Constant temperature controller for greenhouse |
| CN202720527U (en) * | 2012-06-29 | 2013-02-06 | 童兵 | Constant temperature controller circuit |
| CN103838272A (en) * | 2014-03-16 | 2014-06-04 | 周云侠 | Temperature controller of shoe drying plate |
| CN203860144U (en) * | 2014-06-10 | 2014-10-08 | 刘会东 | Curtain rolling control circuit for agricultural greenhouse |
| CN204557248U (en) * | 2015-04-22 | 2015-08-12 | 郑州职业技术学院 | A kind of electron temperature automaton |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892528A (en) * | 2016-05-26 | 2016-08-24 | 成都灯岛科技有限公司 | Improved electric heater control circuit |
| CN105928055A (en) * | 2016-05-26 | 2016-09-07 | 成都灯岛科技有限公司 | Electric heater control circuit |
| CN105953302A (en) * | 2016-05-26 | 2016-09-21 | 成都灯岛科技有限公司 | Improved control circuit for electric heater |
| CN106054976A (en) * | 2016-05-26 | 2016-10-26 | 成都灯岛科技有限公司 | Improved electric heater control circuit |
| CN107045371A (en) * | 2017-05-27 | 2017-08-15 | 马鞍山绿丰种业有限公司 | A kind of intelligent vegetable seeds drying system of remote control |
| CN107491120A (en) * | 2017-08-11 | 2017-12-19 | 过成康 | A kind of low cost, high-precision temperature automatic control system |
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Application publication date: 20151118 |
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