CN207560931U - Intelligent plant growth experimental provision - Google Patents

Abstract

The utility model discloses a kind of Intelligent plant growth experimental provision, including between the first cultivating chamber, the second cultivating chamber, water-cooled LED area light source, control system, cover board, public controlled atmosphere and CO₂Fertilizer apparatus, compressor, fertilizer bucket, water tank etc..Described device is heated using compressor cooling, PTC, and recycles the heat of LED light source generation, controls the joint temperature controlling mode of temperature between public controlled atmosphere；Wherein, the controls of two cultivation room temperatures are regulated and controled by controlling between public controlled atmosphere the temperature of plenum chamber and the flow of cultivating chamber wind turbine and rotating speed, it can be achieved that cultivating managing independently for room temperature.

Description

Intelligent Plant Growth Experimental Device

technical field

The utility model belongs to the field of intelligent agricultural equipment and energy-saving management, in particular to an intelligent plant growth experiment device.

Background technique

Breeding new varieties is an important means for humans to improve existing varieties, adapt to environmental changes, and improve species resistance. Appropriate artificial experimental devices for plant growth experiments can speed up the growth process. Exploring an artificial environment suitable for plant growth requires a large number of scientific experiments, and it is necessary to have artificial facilities that can precisely control environmental factors such as light and temperature. Therefore, there is a large demand market and potential demand space for intelligent plant growth devices. With the development of aerospace technology, people on earth are exploring outer space more and more frequently, and the food supply system for astronauts in outer space also needs such planting devices. Similarly, the demand for home planting is also a potential market for intelligent plant growth experimental devices.

Illumination and temperature are the two most important environmental factors in the process of plant life. They have a coupling relationship and affect the growth and development of plants in a mutually stimulating, complementary or mutually inhibiting manner. At the same time, light and temperature are also the main energy consumption factors of artificial light experimental devices. Reasonable use of heat management of light sources can effectively reduce the power consumption of plant growth experimental devices. Compared with other traditional light sources, based on the advantages of low energy consumption of LED, it has become the mainstream light source of plant growth experimental devices. However, many plant growth experimental devices still have the problem that the spectrum and light quantity cannot meet the needs of plants, and there is a problem of insufficient light regulation flexibility. Traditional plant growth experiment devices generally have only one cultivation room, which has disadvantages such as low equipment utilization rate and poor temperature stability, which affect the regulation accuracy of environmental factors, and affect the accuracy of experiments and equipment utilization. Energy-saving plant growth experiment devices are yet to be developed. roll out.

Utility model content

Purpose of the utility model: In view of the above-mentioned defects in the prior art, this application provides a smart plant based on light-temperature coupling management, equipped with light, temperature, water, gas, and fertilizer control systems, and has high equipment utilization efficiency and energy saving. Growth experiment setup.

Technical solution: The intelligent plant growth experimental device described in this application includes:

The bracket plays the role of installation support;

The box body is placed on the front part of the bracket. The first cultivation room and the second cultivation room are arranged in the box. The configuration of the first cultivation room and the second cultivation room is exactly the same. There is a cultivation tank for planting plants, and a water-cooled LED surface light source is installed above the cultivation tank;

The control system is placed on the top of the box;

The cover plate is placed above the box body;

The public air-conditioning room includes an air supply chamber formed between the first cultivation chamber and the second cultivation chamber, between the cultivation chamber and the box body, and a return air chamber formed between the cover plate and the box body, An air inlet and an air outlet, wherein a transducer is arranged between the air return chamber and the air supply chamber, and the air supply chamber is provided with a PTC heater and a radiator connected to a water-cooled LED light source heat dissipation waterway, and the air inlet The air outlet and the air outlet are equipped with fans;

The CO ₂ fertilization device, compressor, fertilizer bucket and water tank arranged at the rear of the bracket; the CO ₂ fertilization device, compressor, fertilizer bucket and water tank are directly connected to the two cultivation rooms through pipelines, and are directly connected to each other through the control system regulation;

The water cooling system of the LED surface light source is connected to the water tank through pipes, and the pipe between the water cooling system of the LED surface light source and the water tank is also connected in parallel with branch pipes of the radiator.

Heat sources such as PTC heaters and radiators are installed in the air supply room of the public air-conditioning room, and comprehensive management of multiple heat sources can make the temperature distribution of the cultivation room more uniform. Further preferably, the PTC heater and radiator are arranged in the air supply chamber formed between the first cultivation chamber and the second cultivation chamber, so that the heat source is located at the beginning of the airflow cycle to achieve efficient comprehensive utilization.

As another preference, in order to independently manage the temperature of the first cultivation chamber and the second cultivation chamber, a partition is set between the first cultivation chamber and the second cultivation chamber, and the left and right sides of the partition are respectively arranged Inlet.

The cover plate is detachably placed above the box body to realize isolation from the external environment and play a role of dust isolation and protection.

The fan is an axial fan, and the wind speed of the fan is controlled by a pulse width modulation (PWM) mode. The fan adopts PWM control mode, and regulates the working state of the fan and the PTC heater according to the temperature control difference between the real-time temperature and the set temperature. When it is close to the temperature control level, lower the input voltage of the PTC heater or the fan’s Rotating speed. Such a control method can avoid problems such as large fluctuations in temperature control and affect the service life of the equipment, and can reduce the emergency response of plants to temperature.

The water-cooled LED surface light source is a multi-color high-power LED, consisting of five spectrums of red, blue, yellow, green, and white. The LEDs are arranged in an array unit, and the light source can be configured with a suitable LED array according to the cultivation area of the cultivation room. The number of light spectrum, light energy and light time can be adjusted flexibly, and the heat generated by the LED chip can be recycled as needed.

The bottom surface of the bracket is provided with rollers, which can facilitate the movement of the whole device.

The intelligent plant growth experiment device also includes a man-machine dialogue panel through which users can set parameters or obtain real-time and historical data.

Working principle: The described intelligent plant growth experiment device is a top-supply side-return circulation air supply mode, as shown in Figure 3 for details. The transducer sends fresh air into the air supply room of the public air-conditioning room, and passes through multiple heat sources in the air supply room. After the comprehensive management, turn on or off the fan of the corresponding cultivation room according to the demand, pump the air into the corresponding cultivation room, and return to the return air room after circulation; Replacement, and then configure separately according to the temperature management requirements. When the air in the public air-conditioning room needs to be heated, the pipe connected to the radiator is opened, and the hot water after the heat displacement is led to the radiator of the public air-conditioning room by the pipe, and then introduced into the water tank ; Otherwise, it is directly led to the water tank to reduce the energy consumption of temperature control in the public air-conditioning room.

The temperature control method of the above-mentioned intelligent plant growth experiment device comprises the following steps:

Step 1, set the control deviations α, β, θ; among them, α and β are the control deviations of the set temperatures of the first cultivation room and the second cultivation room respectively, and θ is the real-time temperature control between the public air-conditioning room and the cultivation room Deviation, the user can set it according to the demand;

Step 2: Collect the outdoor real-time temperature T _O , the real-time temperature T _1i of the first cultivation room, the real-time temperature T _2i of the second cultivation room, and the real-time temperature T _Gi of the public air-conditioning room, and set the set temperature T _1S of the first cultivation room and the set temperature of the second cultivation room. The set temperature T _2S of the cultivation room;

Step 3: Compare the set temperatures of the two cultivation chambers. When T _1S ≥ T _2S , compare T _Gi with the set temperatures of the two cultivation chambers:

When T _2S ≤ T _Gi ≤ _{T 1S} , the temperature of the cultivation chamber with the small absolute value of the temperature difference is firstly adjusted, and then the temperature of the other cultivation chamber is adjusted. When heating is required, PTC heating is used and the heat generated by the LED light source is used. Compressor refrigeration is used when refrigeration is required;

When T _Gi <T _2S <T _1S , the PTC heater is preferred and the heat generated by the LED light source is used to heat and regulate the temperature of the second cultivation chamber. When the temperature of the second cultivation chamber reaches the set temperature, continue to heat and regulate The temperature of the first cultivation chamber is until reaching the set temperature;

When T _2S <T _1S <T _Gi , priority is given to using compressor cooling to regulate the temperature of the first cultivation chamber, and then continue cooling, and then regulate the temperature of the second cultivation chamber;

Alternatively, when T _1S < T _2S , the control strategy is the same as the above steps, except that the order of regulating the temperature of the first cultivation chamber and the second cultivation chamber has changed, so the relevant regulation steps are omitted.

The specific process is shown in Fig. 4, wherein the cultivation chamber 1 is the first cultivation chamber, and the cultivation chamber 2 is the second cultivation chamber.

The utility model determines the temperature control mode according to the temperature difference between the public air-conditioning room and the two cultivation rooms. Based on the principle of minimum energy consumption, the temperature of the cultivation room with the smaller temperature difference between the setting temperature and the public air-conditioning room is selected first. , and then adjust the temperature of another cultivation room to achieve the purpose of energy-saving control. In addition, a public air-conditioning room is used to reduce energy consumption for temperature control. When the set temperatures of the two cultivation chambers are both lower or higher than the outdoor temperature, the energy consumption of temperature adjustment is less than that of two one-chamber intelligent plant growth experimental devices that realize the same control requirements. If the set temperatures of the two cultivation chambers are T _1S and T _2S respectively, the energy consumption of the plant growth experimental device in cultivation chamber 1 is ΔE 1 when it is adjusted to the set temperature T _1S , and the energy consumption is ΔE ₁ when it is adjusted to the set temperature T _2S ΔE ₂ , the energy consumption for temperature adjustment of the two chambers is only ΔE ₂ . When the outdoor temperature is between the set temperatures of the two cultivation chambers, theoretically, the energy consumption for temperature adjustment of this experimental device should be slightly larger, which should be equal to ΔE ₁ + ΔE ₂ + ΔE, and the increment is ΔE, which is the set The heat generated when the temperature of the culture room with less temperature difference between the fixed temperature and the public air conditioning is adjusted to the set temperature. But compared with the plant growth experiment device of one room, the control temperature difference of the utility model is small, because the temperature control difference of the plant growth test device of the traditional one room is the difference between the outdoor temperature and the set temperature of the cultivation room, and the control temperature difference of the utility model is The temperature difference value is the temperature difference between the public air-conditioned room and the cultivation room. In addition, due to the buffering effect of the public air-conditioning room, the overall heat dissipation of the device is greatly reduced, the heat preservation of the cultivation room is improved, and the number of heating or cooling is less, so the total operating energy consumption is substantially reduced.

The parts not involved in the utility model are all the same as the prior art or can be realized by adopting the prior art.

Beneficial effects: Compared with the prior art, the intelligent plant growth experiment device described in this application has the following advantages: (1) By designing a public air-conditioning room, the heat source is installed in the air supply room to realize the comprehensive management of multiple heat sources, By managing the temperature of the air-conditioning room and the speed of the fan, the independent management of the temperature of the cultivation room can be realized, and the air flow and flow rate entering each cultivation room can be precisely controlled to achieve an energy-saving temperature control method; (2) Water-cooled LED panels are adopted Light source, and recycle its heat energy, mix hot and cold air evenly, make the temperature and humidity of the air flow entering the cultivation room more uniform, reduce the temperature emergency response of plants; (3) set up two cultivation rooms, share most of the equipment, improve the Comprehensive utilization efficiency of equipment. The temperature control method of the intelligent plant growth experiment device described in this application is designed based on the energy-saving goal, which not only effectively realizes the temperature control of the device, but also reduces the energy consumption of temperature control. In summary, this device is based on light-temperature coupling management, equipped with light, temperature, water, gas, and fertilizer control systems, and has many advantages such as saving equipment, low energy consumption, and good temperature stability. This experimental device can be used for environmental changes on plants. Planting for research on growth and development effects or breeding, can also be plant cultivation for astronauts' outer space food supply system, and can also be used for home planting.

Description of drawings

Fig. 1 is a schematic structural view of an intelligent plant growth experiment device (wherein, A is a front view, and B is a side view);

Figure 2 is an LED light layout diagram of a water-cooled LED surface light source;

Fig. 3 is a schematic diagram of the airflow circulation of the intelligent plant growth experiment device;

Fig. 4 is a flowchart of a partial example of the method for controlling the temperature of the cultivation room.

Among them, the bracket 1, the box body 2, the first cultivation chamber 3, the second cultivation chamber 4, the cultivation frame 5, the cultivation tank 6, the water-cooled LED surface light source 7, the control system 8, the cover plate 9, the air supply chamber 10, Air return chamber 11, air inlet 12, air outlet 13, transducer 14, PTC heater 15, radiator 16, _CO2 fertilization device 17, compressor 18, fertilizer bucket 19, water tank 20, partition 21, roller 22 , The man-machine dialogue panel 23.

Detailed ways

The utility model is described in detail below in conjunction with specific embodiments.

Example 1

The intelligent plant growth experiment device as shown in Figure 1, comprises the bracket 1 that plays installation support, is placed in the box body 2 of bracket 1 front, is provided with the first cultivation room 3 and the second cultivation room 2 in the box body Room 4, wherein the configuration of the first cultivation room 3 and the second cultivation room 4 is exactly the same, and a cultivation rack 5 is placed inside. ; The top of the box body 2 is provided with a control system 8; the top of the box body 2 is provided with a cover plate 9; it also includes a public air-conditioning room, including between the first cultivation room 3 and the second cultivation room 4, and between the cultivation room and the box body 2 The air supply chamber 10 formed between, and the air return chamber 11 formed between the cover plate 9 and the box body 2, the air inlet 12 and the air outlet 13, a partition is provided between the first cultivation chamber 3 and the second cultivation chamber 4 21. Air inlets 12 are respectively provided on the left and right sides of the partition 21, wherein a transducer 14 is provided between the return air chamber 11 and the air supply chamber 10, and the first cultivation chamber 3 and the second cultivation chamber 4 are formed The air supply chamber 10 is equipped with a PTC heater 15 and a radiator 16 connected to the water-cooled LED surface light source heat dissipation channel, and the air inlet 12 and the air outlet 13 are equipped with axial flow fans, and the pulse width modulation mode is used to control the fan speed; The rear part of the bracket 1 is also equipped with _CO2 fertilization device 17, compressor 18, fertilizer bucket 19 and water tank 20; wherein, the water cooling system of the water-cooled LED surface light source 7 is connected with the water tank 20 through pipelines, and the water-cooled LED surface The pipeline between the water cooling system of the light source 7 and the water tank 20 is also connected with a branch pipeline of the radiator 16 in parallel. The bottom surface of the bracket 1 is also provided with rollers 22 and also includes a man-machine dialogue panel 23 .

The water-cooled LED surface light source 7 is a multi-color high-power LED, composed of five spectrums of red, blue, yellow, green, and white, wherein the LEDs are arranged in an array unit, and the LED lights are arranged as shown in Figure 2. The light source can be Configure the appropriate number of LED arrays according to the cultivation area of the cultivation room.

The above-mentioned intelligent plant growth experimental device is a top-supply side-return circulation air supply mode. See the airflow circulation schematic diagram in Figure 3 for details. The transducer sends fresh air into the air supply room of the public air-conditioning room. Finally, turn on or turn off the fan of the corresponding cultivation room according to the demand, pump the air into the corresponding cultivation room, and return to the return air room after circulation; the heat generated by the LED chip in the water-cooled LED surface light source is replaced by the water of the water-cooling system, and then It is configured separately according to the temperature management requirements. When the air in the public air-conditioning room needs to be heated, the pipe connected to the radiator is opened, and the hot water after the heat displacement is led from the pipe to the radiator of the public air-conditioning room, and then introduced into the water tank; otherwise, It is directly led to the water tank to reduce the energy consumption of temperature control in the public air-conditioning room.

Example 2

The temperature control method of the intelligent plant growth experiment device described in embodiment 1 may further comprise the steps:

Step 1, set control deviations α, β, θ; where α and β are the control deviations of the set temperatures of the first cultivation room and the second cultivation room respectively, θ is the real-time temperature control deviation between the public air-conditioning room and the cultivation room, Users can set their own according to their needs;

Step 2: Collect the outdoor real-time temperature T _O , the real-time temperature T _1i of the first cultivation room, the real-time temperature T _2i of the second cultivation room, and the real-time temperature T _Gi of the public air-conditioning room, and set the set temperature T _1S of the first cultivation room and the set temperature of the second cultivation room. The set temperature T _2S of the cultivation room;

Step 3: Compare the set temperatures of the two cultivation chambers. When T _1S ≥ T _2S , compare T _Gi with the set temperatures of the two cultivation chambers:

When T _2S ≤ T _Gi ≤ T _1S , the temperature of the cultivation room with the small absolute value of the temperature difference is adjusted first, and then the temperature of the other cultivation room is adjusted. When heating is required, PTC is used for heating and the heat generated by the LED light source is used. Compressor refrigeration is used when refrigeration is required;

When T _Gi <T _2S <T _1S , the PTC heater is preferred and the heat generated by the LED light source is used to heat and regulate the temperature of the second cultivation chamber. When the temperature of the second cultivation chamber reaches the set temperature, continue to heat and regulate The temperature of the first cultivation chamber is until reaching the set temperature;

When T _2S <T _1S <T _Gi , priority is given to using compressor cooling to regulate the temperature of the first cultivation chamber, and then continue cooling, and then regulate the temperature of the second cultivation chamber;

Alternatively, when T _1S < T _2S , the control strategy is the same as the above steps, except that the order of regulating the temperature of the first cultivation chamber and the second cultivation chamber has changed, so the relevant regulation steps are omitted.

Fig. 4 shows a partial flowchart of the temperature control method of the cultivation room, that is, a partial adjustment method under the condition of T _1S ≥ T _2S , wherein the cultivation room 1 is the first cultivation room, and the cultivation room 2 is the second cultivation room. According to Fig. 4, it can be seen that the temperature control method of the above-mentioned intelligent plant growth experiment device includes the following steps: first, setting input control deviations α, β, θ, wherein, α and β are the first cultivation chamber and the second cultivation chamber design respectively. The control deviation of the fixed temperature, θ is the real-time temperature control deviation between the public air-conditioning room and the cultivation room, and the user can set it according to the demand; then, collect the outdoor real-time temperature T _O , the real-time temperature T _1i of the first cultivation room, For the real-time temperature T _2i and the real-time temperature T _Gi of the public air-conditioning room, set the set temperature T _1S of the first cultivation room and the set temperature T _2S of the second cultivation room; secondly, compare the set temperatures of the two cultivation rooms. Indicates the situation of T _1S ≥ _{T 2S} , compares T _Gi with the set temperature of the two cultivation chambers, and then enumerates two cases of T _2S ≤ T _Gi ≤ T _1S and T _Gi < T _2S : when T _2S ≤ T _Gi When ≤T _1S , compare T _Gi with T _2S and T _1S respectively, and then preferentially adjust the temperature of the cultivation chamber with the smaller absolute value of temperature difference, as shown in the figure, when |T _Gi -T _1S |≥|T _Gi -T _2S When |T _Gi -T _1S |<|T _Gi -T _2S |, the temperature of the first cultivation room is preferentially regulated. PTC control is used when heating is required during the control process. Heat and use the heat generated by the LED light source, and use the compressor to cool when cooling is required; when T _Gi < T _2S , use the PTC heater first and use the heat generated by the LED light source to heat and regulate the temperature of the second cultivation chamber. When the temperature of the second cultivation chamber reaches the set temperature, continue heating, and adjust the temperature of the first cultivation chamber until it reaches the set temperature; otherwise, the first cultivation chamber temperature is controlled by compressor refrigeration first, and then the cooling is continued, and then the second cultivation chamber is adjusted room temperature.

Claims (7)

1. a kind of Intelligent plant growth experimental provision, which is characterized in that including：

Bracket (1), plays installation supporting role；

Babinet (2) is placed in bracket (1) forepart, the first cultivating chamber (3) and the second cultivating chamber (4), institute is equipped in the babinet (2) It states the first cultivating chamber (3) and the second cultivating chamber (4) configuration is just the same, cultivating stand (5) is placed in inside, and cultivating stand (5) is equipped with The cultivation bed (6) of planting plants, cultivation bed (6) top are equipped with water-cooled LED area light source (7)；

Control system (8) is placed at the top of babinet (2)；

Cover board (9) is placed in above babinet (2)；

Between public controlled atmosphere, including between first cultivating chamber (3) and the second cultivating chamber (4), the cultivating chamber and babinet (2) it Between the plenum chamber (10) that is formed, the return air chamber (11) formed between the cover board (9) and babinet (2), air inlet (12) and outlet air Mouth (13), wherein, energy converter (14) is equipped among the return air chamber (11) and plenum chamber (10), the plenum chamber (10) is equipped with Ptc heater (15) and the radiator (16) being connected with water-cooled LED area light source heat dissipation water route, the air inlet (12) and outlet air Mouth (13) is equipped with wind turbine；

It is arranged on the CO at bracket (1) rear portion₂Fertilizer apparatus (17), compressor (18), fertilizer bucket (19) and water tank (20)；

The water-cooling system of the water-cooled LED area light source (7) is connected by pipeline with water tank (20), the water-cooled LED faces Pipeline between the water-cooling system of light source (7) and water tank (20) is also connected with the lateral of radiator (16) side by side.

2. Intelligent plant growth experimental provision according to claim 1, which is characterized in that the ptc heater (15) and Radiator (16) is arranged in the plenum chamber (10) formed between first cultivating chamber (3) and the second cultivating chamber (4).

3. Intelligent plant growth experimental provision according to claim 1, which is characterized in that first cultivating chamber (3) and Partition board (21) is equipped between second cultivating chamber (4), the right and left sets air inlet (12) respectively in the partition board (21).

4. Intelligent plant growth experimental provision according to claim 1, which is characterized in that the wind turbine is axial flow blower, Wind turbine wind speed is controlled using PWM mode.

5. Intelligent plant growth experimental provision according to claim 1, which is characterized in that the water-cooled LED area light source (7) for polychrome high-capacity LED, there are red, blue, yellow, green, white five kinds of spectral compositions, wherein LED is using array element arrangement, light source Can suitable LED array number be configured according to the cultivated area of cultivating chamber.

6. Intelligent plant growth experimental provision according to claim 1, which is characterized in that bracket (1) bottom surface is equipped with Idler wheel (22).

7. Intelligent plant growth experimental provision according to claim 1, which is characterized in that further include human-computer dialogue panel (23)。