CN205756036U - A kind of Novel intelligent greenhouse automatic control device - Google Patents

Abstract

A kind of Novel intelligent greenhouse automatic control device, including control module, the input of described control module connects solar powered module, A/D modular converter respectively.Described control module connecting valve control module；The outfan of described control module connects brakes, sound and light alarm module respectively；Described control module connects host computer by the first wireless communication module；Described control module connects temperature sensor, air humidity sensor, soil moisture sensor, intensity of illumination sensor, CO respectively by the second wireless communication module, A/D modular converter₂Sensor.Brakes is for being controlled Motorized blind net opening and closing by control module, dripped sprinkling irrigation equipment opening and closing, CO₂Generator opening and closing, power sunroof opening and closing, blower fan opening and closing, biopotency lamp opening and closing, geothermal-warming device opening and closing.This utility model device can solve the problem that existing greenhouse cost is high, installation difficulty is big, control point is single, it is possible in real time greenhouse is carried out on-line checking, and adopt an effective measure according to testing result.

Description

A New Intelligent Greenhouse Automatic Control Device

technical field

The utility model relates to the field of temperature control, in particular to a novel intelligent greenhouse automatic control device.

Background technique

With the improvement of people's living standards, the seasonal supply of vegetables and fruits can no longer meet the needs of urban and rural residents. In this case, if a large amount of transportation from other places is used to meet the supply requirements, it will inevitably increase the pressure on transportation, and the degree of freshness will be greatly affected. A greenhouse is a place that can change the plant growth environment, provide the best conditions for plant growth, and avoid the influence of the four seasons and harsh climate outside. It uses the daylighting covering material as all or part of the structural material, and can cultivate plants in winter or other seasons that are not suitable for outdoor plant production. The purpose of greenhouse production is to adjust the production period, promote production development, prevent and control pests and diseases, and improve quality and output. At present, most of my country's greenhouse environment is managed manually and empirically, lacking systematic scientific guidance. This not only increases the investment of farmers, but also increases the burden on consumers. On the other hand, due to the low level of agricultural modernization in my country, the large surplus of agricultural labor force, the large one-time investment in greenhouses, the shortage of funds, and the fact that the operation process is mainly manual, the expansion of greenhouse control technology is limited. In short, the existing greenhouse technology is relatively mature in terms of hardware, but it is still relatively backward in terms of computer control. The specific manifestations are: 1. Only realize the measurement and control of some single factors; 2. There is no facility for actively regulating the environment in the greenhouse; 3. The device is large in size , high energy consumption, and high quality requirements for operators. Therefore, it is imminent to develop a new type of greenhouse automatic control device that is low cost, easy to arrange, high performance, fully automatic control and suitable for my country's national conditions.

Contents of the invention

Aiming at the deficiencies of the above-mentioned prior art, the utility model provides a novel intelligent greenhouse automatic control device, which can solve the problems of high cost, difficult installation and single monitoring point in the existing greenhouse. The device has a high automation coefficient, can detect the greenhouse online in real time, and take effective measures according to the detection results.

The technical scheme adopted in the utility model is:

A novel intelligent greenhouse automatic control device includes a control module, the input ends of which are respectively connected to a solar power supply module and an A/D conversion module. The control module is connected to the switch control module; the output terminals of the control module are respectively connected to the braking system and the sound and light alarm module; the control module is connected to the host computer through the first wireless communication module; the control module is connected to the host computer through the second wireless communication module The module and the A/D conversion module are respectively connected with a temperature sensor, an air humidity sensor, a soil moisture sensor, a light intensity sensor, and a CO ₂ sensor.

The braking system includes a relay and a relay driver, the control module is connected to the relay driver, the relay driver is connected to the relay, and the braking system is used to control the opening and closing of the electric sunshade net, the opening and closing of the drip irrigation equipment, and the opening and closing of the _CO generator through the control module , Open and close the electric sunroof, open and close the fan, open and close the bio-efficiency lamp, and open and close the geothermal heating device.

The solar power supply module includes a solar panel, a solar controller, and a storage battery. The solar panel is connected to the solar controller, and the solar controller is connected to the storage battery.

The control module is connected with a storage module and a crystal oscillator circuit.

There are multiple temperature sensors, which are distributed on the four walls inside the greenhouse, and the temperature sensor is selected as a DS18B20 sensor.

The air humidity sensor is installed directly under the roof of the greenhouse, and the air humidity sensor is selected as a RSY-2B humidity sensor.

There are multiple soil moisture sensors, which are distributed and installed under the greenhouse floor 0.2 meters away from the underground soil. The soil moisture sensors use ML2X ThetaProbe needle moisture probes.

There are multiple light intensity sensors distributed and installed on the four walls inside the greenhouse. The light intensity sensors use N-Si silicon photocells.

The CO ₂ sensor is installed on the wall at a height of 0.5 meters from the ground, and the CO ₂ sensor is an infrared CO ₂ concentration meter.

The electric sunshade net is respectively installed on the upper ends of the walls around the greenhouse and the roof of the greenhouse;

The drip irrigation equipment includes a micro-valve and a nozzle;

The _CO2 generator is used to produce _CO2 through the chemical reaction of ammonium bicarbonate and sulfuric acid;

The electric sunroof includes a micro motor and a window, and the micro motor is connected to the window;

The fan includes a micro motor and a fan blade, and the micro motor is connected to the fan blade;

The bio-efficiency lamp is used for supplementary light at night;

The geothermal heating device includes a greenhouse, a floor, an axial fan, an air inlet, and an exhaust pipe. The top and surrounding areas of the greenhouse are all covered with 5mm float glass, and fixed and sealed by aluminum alloy profiles and rubber strips.

The control module is a single-chip microcomputer control chip AT89S52, and the control module is connected with a signal amplifying circuit module, and the signal amplifying circuit module includes an instrument amplifier.

With the above structure, the utility model is a novel intelligent greenhouse automatic control device, which collects the air temperature, air humidity and soil humidity in the greenhouse through the temperature sensor, air humidity sensor, soil moisture sensor, light sensor and _CO2 sensor installed in the greenhouse. , light intensity, CO ₂ concentration and other environmental parameter information are transmitted to the control module after A/D conversion, and the control module uploads to the host computer through the wireless communication module after preliminary analysis and judgment. Sunshade nets, sprinkler irrigation equipment, _CO2 generators, electric skylights, fans, bio-efficiency lamps, and greenhouse geothermal tube heat storage and heating devices are adjusted and controlled to meet the needs of the growth and development of cultivated crops and provide the most suitable conditions for crop production. The ecological environment can greatly improve the yield and quality of crops.

The device of the utility model has the advantages of simple structure, high automation coefficient, good reliability and convenient installation, which brings great convenience to greenhouse workers and has good popularization.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is a block diagram of the utility model;

Fig. 2 is the pin functional figure of single-chip microcomputer AT89S52 of the present utility model;

Fig. 3 is the clock circuit diagram of the utility model;

Fig. 4 is the switch control circuit diagram of the present utility model;

Fig. 5 is the A/D conversion circuit diagram of the present utility model;

Fig. 6 is a reset circuit diagram of the present utility model;

Fig. 7 is the keyboard input circuit diagram of the utility model.

detailed description

As shown in FIG. 1 , a new type of intelligent greenhouse automatic control device includes a control module, and the input terminals of the control module are respectively connected to a solar power supply module and an A/D conversion module. The control module is connected to the switch control module. The output ends of the control module are respectively connected to the braking system and the sound and light alarm module. The control module is connected to the upper computer through the first wireless communication module. The control module is respectively connected to a temperature sensor, an air humidity sensor, a soil moisture sensor, a light intensity sensor, and a CO ₂ sensor through a second wireless communication module and an A/D conversion module.

The braking system includes a relay and a relay driver, the control module is connected to the relay driver, the relay driver is connected to the relay, and the braking system is used to control the opening and closing of the electric sunshade net, the opening and closing of the drip irrigation equipment, and the opening and closing of the _CO generator through the control module , Open and close the electric sunroof, open and close the fan, open and close the bio-efficiency lamp, and open and close the geothermal heating device.

The solar power supply module includes a solar panel, a solar controller, and a storage battery. The solar panel is connected to the solar controller, and the solar controller is connected to the storage battery.

The control module is connected with a storage module and a crystal oscillator circuit.

There are multiple temperature sensors, which are distributed on the four walls inside the greenhouse, and the temperature sensor is selected as a DS18B20 sensor.

The air humidity sensor is installed directly under the roof of the greenhouse, and the air humidity sensor is selected as a RSY-2B humidity sensor.

There are multiple soil moisture sensors, which are distributed and installed under the greenhouse floor 0.2 meters away from the underground soil. The soil moisture sensors use ML2X ThetaProbe needle moisture probes.

There are multiple light intensity sensors distributed and installed on the four walls inside the greenhouse. The light intensity sensors use N-Si silicon photocells.

The CO ₂ sensor is installed on the wall at a height of 0.5 meters from the ground, and the CO ₂ sensor is an infrared CO ₂ concentration meter.

The electric sunshade net is respectively installed on the upper ends of the walls around the greenhouse and the roof of the greenhouse;

The drip irrigation equipment includes a micro-valve and a nozzle;

The _CO2 generator is used to produce _CO2 through the chemical reaction of ammonium bicarbonate and sulfuric acid;

The electric sunroof includes a micro motor and a window, and the micro motor is connected to the window;

The fan includes a micro motor and a fan blade, and the micro motor is connected to the fan blade;

The bio-efficiency lamp is used for supplementary light at night;

The geothermal heating device includes a greenhouse, a floor, an axial fan, an air inlet, and an exhaust pipe. The top and surrounding areas of the greenhouse are all covered with 5mm float glass, and fixed and sealed by aluminum alloy profiles and rubber strips.

The control module is a single-chip microcomputer control chip AT89S52, and the control module is connected with a signal amplifying circuit module, and the signal amplifying circuit module includes an instrument amplifier.

As shown in Figure 2, the pin function diagram of the single-chip microcomputer AT89S52 of the present utility model, the AT89S52 single-chip microcomputer is an enhanced product in the high-grade AT89S series single-chip microcomputer newly introduced by ATMEL Company, and is a kind of low power consumption, high-performance CMOS 8-bit micro-controller device with 8K in-system programmable Flash memory. The on-chip Flash allows program memory to be programmed in-system, and is also suitable for conventional programmers. In the external structure, the commonly used PDID form is selected. In the application system of single-chip microcomputer, the I/O port is used the most. AT89S52 single-chip microcomputer has four groups of 32 for I/O port lines, which are divided into four groups of P0, P1, P2 and P3. Among them, P0 port is an 8-bit open-drain bidirectional I/O port. As an output port, each bit can drive 8 TTL logic levels. P1, P2 and P3 are all 8-bit bidirectional I/O ports with internal pull-up resistors, and their output buffers can drive 4 TTL logic levels. In the utility model, there are many detection sensors and output braking modules, and the AT89S52 single-chip microcomputer is selected to meet various functional requirements.

As shown in Figure 3, it is the crystal oscillator circuit diagram of the utility model. When the system is in a dormant state, the system clock can be switched to this low-frequency clock to reduce power consumption, which is particularly important for the utility model when using solar power. When the system uses an external low-frequency clock to enter the point-saving mode, the following steps can be followed: (1) Configure the XTAL1 and XTAL2 pins as analog I/O mode; (2) Write 1 to the corresponding bit of the corresponding port latch, Disable the digital driver output of these two pins; (3) Configure and enable the external oscillator, wait at least 1ms; (4) Query whether the external oscillator is ready to complete; (5) Complete the switching of the system clock.

As shown in Figure 4, it is a switch control circuit diagram of the utility model. The switch module is mainly composed of a relay driver ULN2803 and a relay. The ULN2803 is an eight-way NPN Darlington junction transistor array, suitable for the interface between low logic level digital circuits and higher current and voltage requirements. Use it to drive a 5V relay. The output end of ULN2803 is directly connected to one end of the relay coil, and the other end of the relay coil is connected to +5V power supply. The input end of ULN2803 is directly connected to the I/O port of the microcontroller. Drive the start-up of electric sunshade nets, sprinkler and drip irrigation equipment, _CO2 generators, electric skylights, fans, bio-efficiency lamps, and geothermal tube heat storage and heating devices in greenhouses.

As shown in Fig. 5, it is the A/D conversion circuit of the present invention, and ADC0808 is a relatively commonly used 8-way analog input and 8-bit digital output successive comparison ADC chip. The main function of this circuit is to read the values of the temperature sensor, humidity sensor, light intensity sensor, soil moisture sensor and _CO2 sensor receiving circuit, and convert the analog signal collected and sent by the sensor into an 8-bit digital signal through ADC0808N. Then pass the digital signal to the microcontroller for processing.

As shown in Figure 6, it is the reset circuit diagram of the utility model, when power on, C1 is equivalent to short circuit, makes the single-chip reset; When working normally, press the switch to make the single-chip reset. C1 of the reset circuit can be selected as 22uF, R5 as 200 ohms, and R3 as 1000 ohms. The reset circuit is simple in structure, easy to manufacture, suitable for use when the interference is not very serious, and suitable for the utility model patent.

As shown in Figure 7, it is the keyboard input circuit diagram of the utility model, and the utility model adopts the independent keyboard, and the completed function is to input the setting value of the control system, so as to compare with the adopted value of the measurement and control system, and obtain the error of the system and the rate of error change, which are called by the control program of the system. The keyboard input circuit is composed of four buttons. Because of the small number, the utility model does not use the keyboard expansion chip, which not only simplifies the design, but also improves the design efficiency and reduces the interference.

Above-mentioned embodiment is only the preferred technical scheme of the present utility model, and should not be considered as the restriction to the present utility model, and the protection scope of the present utility model should be the technical solution described in the claims, including the technology in the technical solution described in the claims. An equivalent alternative to the feature is the scope of protection. That is, equivalent replacement and improvement within this scope are also within the protection scope of the present utility model.

Claims (10)

1. A novel intelligent greenhouse automatic control device, comprising a control module, characterized in that: the input end of the control module is connected to a solar power supply module and an A/D conversion module; the control module is connected to a switch control module; The output ends of the control module are respectively connected to the braking system and the sound and light alarm module; the control module is connected to the upper computer through the first wireless communication module; the control module is connected to the temperature sensor through the second wireless communication module and the A/D conversion module , air humidity sensor, soil moisture sensor, light intensity sensor, CO ₂ sensor; the braking system includes a relay, a relay driver, the control module is connected to the relay driver, the relay driver is connected to the relay, and the braking system is used to control the motor through the control module Opening and closing of sunshade net, opening and closing of drip irrigation equipment, opening and closing of _CO2 generator, opening and closing of electric sunroof, opening and closing of fan, opening and closing of bio-efficiency lamp, opening and closing of geothermal heating device. 2. A new type of intelligent greenhouse automatic control device according to claim 1, characterized in that: the solar power supply module includes a solar panel, a solar controller, and a storage battery, the solar panel is connected to a solar controller, and the solar controller connected to the battery. 3. A novel intelligent greenhouse automatic control device according to claim 1, wherein the control module is connected to a storage module and a crystal oscillator circuit. 4. A new type of intelligent greenhouse automatic control device according to claim 1, characterized in that: there are multiple temperature sensors distributed on the four walls inside the greenhouse, and the temperature sensor is selected as a DS18B20 sensor. 5. A new type of intelligent greenhouse automatic control device according to claim 1, characterized in that: the air humidity sensor is installed directly under the roof of the greenhouse, and the air humidity sensor is an RSY-2B humidity sensor. 6. A novel intelligent greenhouse automatic control device according to claim 1, characterized in that: the soil moisture sensors are multiple, distributed and installed under the greenhouse ground 0.2 meters away from the underground soil, and the soil moisture sensors adopt ML2X ThetaProbe Needle Moisture Probe. 7. A new type of intelligent greenhouse automatic control device according to claim 1, characterized in that: the light intensity sensors are multiple, distributed and installed on the four walls inside the greenhouse, and the light intensity sensors are selected from N-Si silicon photocells . 8. A novel intelligent greenhouse automatic control device according to claim 1, characterized in that: the CO ₂ sensor is installed on a wall at a height of 0.5 meters from the ground, and the CO ₂ sensor is an infrared CO ₂ concentration meter. 9. A novel intelligent greenhouse automatic control device according to claim 1, characterized in that: said electric sunshade nets are respectively installed on the upper ends of walls around the greenhouse and on the roof of the greenhouse; The drip irrigation equipment includes a micro-valve and a nozzle; The _CO2 generator is used to produce _CO2 through the chemical reaction of ammonium bicarbonate and sulfuric acid; The electric sunroof includes a micro motor and a window, and the micro motor is connected to the window; The fan includes a micro motor and a fan blade, and the micro motor is connected to the fan blade; The bio-efficiency lamp is used for supplementary light at night; The geothermal heating device includes a greenhouse, a floor, an axial fan, an air inlet, and an exhaust pipe. The top and surrounding areas of the greenhouse are all covered with 5mm float glass, and fixed and sealed by aluminum alloy profiles and rubber strips. 10. A new type of intelligent greenhouse automatic control device according to claim 1, characterized in that: the control module is a single-chip microcomputer control chip AT89S52, the control module is connected to a signal amplification circuit module, and the signal amplification circuit module includes an instrument amplifier.