Temperature control device for agriculture and avocation production
A temperature control device, agricultural and sideline technology, applied in the direction of temperature control using electric mode, auxiliary controller with auxiliary heating device, etc., can solve the problems of serious loss, high production cost, complicated control, etc., and achieve reasonable structural design , High degree of automation, precise temperature control effect
Inactive Publication Date: 2016-02-03
WUHU HENGFENG TECH
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Problems solved by technology
[0004] The greenhouse control circuit in the prior art has a complex structure, difficult wiring and complicated control, serious loss, and high production cost, so it is not suitable for popularization and use
Method used
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Embodiment Construction
[0018] Such as figure 1 The shown temperature control device for agricultural and sideline production includes a power supply circuit, a temperature detection and display circuit, a reference voltage circuit and a control circuit.
[0019] The power supply circuit is composed of a power switch S2, a power transformer T, rectifier diodes VD2-VD5, filter capacitors C1, C2, a three-terminal voltage stabilizing integrated circuit IC3, a resistor R6 and a power indicator light-emitting diode VL1. The input terminal is connected to a power switch S2, the output terminal of the power transformer T is connected to a rectifier bridge circuit composed of diodes VD2-VD5, and the output terminals of the rectifier bridge circuit are respectively connected to a filter capacitor C1 and a three-terminal voltage stabilizing integrated circuit The input terminal of IC3 and the output terminal of the three-terminal voltage stabilizing integrated circuit IC3 are connected in parallel with a filte...
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The invention discloses a temperature control device for agriculture and avocation production, which comprises a power circuit, a temperature detection and display circuit, a reference voltage circuit and a control circuit, wherein the power circuit is composed of a power switch S2, a power transformer T, rectifier diodes VD2 to VD5, filter capacitors C1 and C2, a three-terminal voltage regulation integrated circuit IC3, a resistor R6 and a power indication light emitting diode VL1; the temperature detection and display circuit is composed of a temperature sensor integration circuit IC1, a control switch S1 and an LCD; the reference voltage circuit is composed of a resistor R1, a capacitor C3, a zener diode VS and an N1 inside an operational amplifier integrated circuit IC2; and the control circuit is composed of potentiometers RP1 and RP2, resistors R2 to R5, an amplifier N2 inside the IC2, a transistor V, a relay K, a diode VD1 and a light emitting diode VL2. The temperature control device is applicable to agriculture and avocation production, and has the advantages that the structure is reasonably designed, the automatic degree is high, the temperature is accurately controlled, and the temperature control range can be 2 to 200 DEG C.
Description
technical field [0001] The invention belongs to the technical field of agricultural automation control, and in particular relates to a temperature control device for agricultural and sideline production. Background technique [0002] Facility agriculture is one of the most dynamic emerging industries at present, and greenhouses are typical equipment for facility agriculture. A greenhouse is a place that can change the plant growth environment, create the best conditions for plant growth, and avoid the influence of seasonal changes and harsh weather outside. It has the advantages of rational use of agricultural resources, protection of the ecological environment, and increase of agricultural production. Greenhouse control technology is a cutting-edge research field in the world. Its key technology is to collect and effectively control environmental factors such as temperature, humidity, and light. The ultimate goal of this technology is to improve control and operation accura...
Claims
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Inventor 胡万顺
Owner WUHU HENGFENG TECH