JPH01235521A - Device for growing plant - Google Patents

Abstract

PURPOSE:To enable accurate control of temperature and humidity in a sample chamber whenever illuminators are lit or not, by installing a temperature and humidity control point of a cultivation space in the sample chamber for growing a plant on the lee outside the sample chamber in a vessel. CONSTITUTION:In an air circuit in a vessel, air is sucked from a blower suction chamber 2 by a circulating blower 5, passed through a blower blowoff chamber 3 and subjected to temperature and humidity conditioning with a cooling dehumidifier 6, a heater 7 and a humidifier 8 and the air at the conditioned temperature and humidity is then blown off from an outlet 4' for blowing the air into the vessel provided in temperature and humidity conditioning chamber 4 into the sample chamber 1. On the other hand, light energy with an illuminance required for growth of a plant is irradiated from illuminators 10 provided in sample chamber 1. The temperature distribution in lighting the illuminators at this time is such that a position at the same temperature as that of the central part in the sample chamber is present in the blower suction chamber 2 where is on the lee in the vessel. In a controlling part 11, sensed values of temperature and humidity inputted from a temperature and humidity sensor 9 are compared with the preset values of temperature and humidity. If both values are different, commands are sent to the circulating blower 5, cooling dehumidifier 6, heater 7 and humidifier 8 for making the sensed values in agreement with the set values of the temperature and humidity. Thereby, the temperature and humidity of the air blown into the sample chamber 1 are controlled.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a plant growing mushroom device for controlling the growth of plants.
In particular, the present invention relates to a plant growing device suitable for controlling temperature and humidity among plant growing systems.

[Conventional technology]

In the conventional apparatus, a temperature/humidity control point was installed upwind within the sample chamber to control the temperature/humidity inside the sample chamber.

Incidentally, related devices include, for example, the technique described in Japanese Unexamined Patent Publication No. 56-55362.

[Problem to be solved by the invention]

In the prior art, the temperature and humidity control point is installed on the windward side of the tank, and no arrangement is made for the point where the control conditions differ between when the lights are on and when the lights are off.

When the lights are on, the light energy from the lights causes the temperature to rise and the humidity to fall from windward to leeward, and there is a difference in temperature and humidity between the center of the sample chamber and the temperature and humidity control point using conventional technology. arise. Therefore, the conventional technology has a problem in that it is not possible to accurately control temperature and humidity production.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art described above and to provide a plant growing device that can accurately control the temperature and humidity inside a sample chamber regardless of whether the lights are on or off.

[Means to solve the problem]

The above object is achieved by installing the temperature and humidity control point of the cultivation space inside the sample chamber on the leeward side of the tank outside the sample chamber.

[Effect]

The air circulation path for 1 yen is from the blower suction chamber → the melon blowing chamber →
The temperature and humidity control room will become the sample room. When the lights are turned on, the air is heated by light energy, and the temperature rises from upwind to leeward, and the relative humidity decreases.

By the way, the inventor has confirmed that there is a point at the position of the wind F in the tank outside the sample chamber that exhibits almost the same temperature and humidity as the center of the sample chamber (No. (See Figure 2).

Therefore, in the present invention, a temperature and humidity control point is installed at a position on the leeward side of 1 outside the sample chamber, which has almost the same temperature and humidity as the center of the sample chamber, and the detected temperature and humidity values taken from this temperature and humidity control point ilJ are The temperature and humidity inside the sample chamber are controlled based on the following.

Therefore, in the present invention, the temperature and humidity in the sample chamber in which plants are grown can be accurately controlled regardless of whether the light in the sample chamber is on or off.

〔Example〕

Hereinafter, one embodiment of the present invention will be explained with reference to FIGS. 1 and 2.

FIG. 1 shows an embodiment of the present invention applied to a genetically modified plant growing device, which includes a sample chamber 1 for growing v′i smoked food in a tank, a blower suction chamber 2, and a blower blowout chamber 3. A circulation blower 5 that blows air toward the blower outlet chamber 3 is installed in the blower suction chamber 2 in which the temperature and humidity control chamber 4 are provided.

A cooling dehumidifier 6, a heater 7, and a humidifier 8 are installed in the blower outlet chamber 3, and these devices generate temperature-controlled and humidity-controlled air. 3 is provided with an exhaust port 12, and this exhaust port 12
An exhaust filter 13 is attached so that they can intersect with each other.

The A4 temperature and humidity control chamber 4 is provided with an in-tank blowout port 4', through which temperature and humidity control air is blown out into the sample chamber 1.

A plant to be grown (not shown) is placed in the sample chamber 1. A lighting 10 is also provided in the sample chamber 1, and the lighting 10 provides the necessary illuminance for plant growth. It emits light energy.

A temperature/humidity control point is set at a position in the blower suction chamber 2, which is a position on the leeward side of the tank outside the sample chamber and exhibits almost the same temperature and humidity as the central part of the sample chamber. A sensor 9 is installed. The temperature/humidity sensor 9 is configured to send detected temperature/humidity values to the control section 11 .

The control unit 11 is installed outside the tank. Then, this control unit 11 compares the temperature and humidity detected value sent from the temperature and humidity sensor 9 with a preset temperature and humidity set value, and in order to match the temperature and humidity set value, the circulating air @ 5. The plant growth apparatus of the above embodiment, which is configured to send commands to the cooling dehumidifier 6, heater 7, and humidifier 8 to control the temperature and humidity inside the sample chamber 1, is operated as follows. , act.

In other words, the air circulation path inside the tank is such that air is sucked in by the circulation blower 5 from the blower suction chamber 2, and air is sucked into the blower outlet chamber 3 by the circulation blower 5.
iS passes through the cooling dehumidifier 6, heater 7, and humidifier 8.
The temperature and humidity controlled air is blown out into the sample chamber 1 from an in-tank air outlet 4' provided in the temperature and humidity controlled chamber 4.

On the other hand, a lighting 10 provided in the sample chamber 1 irradiates the plants with light energy at a necessary illuminance.

FIG. 2 shows the temperature distribution when the illumination is turned on at this time.

From FIG. 2, it can be seen that there is a position in the blower suction chamber 2, which is a leeward position in the tank, where the temperature is equal to that of the central part of the sample chamber. In fact, it has been confirmed that this position exhibits almost the same temperature as the central part of the sample chamber even when the illumination 10 is not turned on, and also exhibits almost the same humidity as the central part of sample "4".

In this embodiment, a temperature/humidity control point t@ is placed at a leeward position in the tank outside the sample chamber, and the temperature/humidity sensor 9 installed at this temperature/humidity control point detects the temperature/humidity. The value is sent to the control unit 11.

The control unit 11 compares the temperature and humidity detected value sent from the temperature and humidity sensor 9 with a preset temperature and humidity set value, and when the two values differ, the circulation is performed to match the temperature and humidity set value. A command is sent to the blower 5, cooling dehumidifier 6, heater 7, and humidifier 8 to control the temperature and humidity of the air blown into each sample chamber. Accurately control the temperature and humidity of the air blown into room 1
11ilJ can groan.

〔Effect of the invention〕

As explained above, in the present invention, a temperature/humidity control point is installed at a leeward position in the tank outside the sample chamber where the temperature and humidity are almost the same as the central part of the sample chamber, and the detected temperature/humidity value is obtained from this temperature/humidity control point. The temperature and humidity inside the sample chamber are controlled based on the detected temperature and humidity values. Therefore, according to the present invention, the temperature and humidity inside the sample room where plants are grown can be accurately measured with i! regardless of whether the lights in the sample room are on or off. IJ cape allows you to accurately adjust the environmental conditions of the plant by 1ffl
J There are 1llill possible effects.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the present invention, and is a cross-sectional plan view of a genetically modified plant growth device, and Fig. 2 is a diagram showing the temperature distribution in the tank when the lights are turned on.
...Blower suction chamber 3...Blower outlet chamber 4.
...Temperature and humidity control room 5...Circulating blower 6...Cooling dehumidifier 7...Garo heater 8...Humidifier 9...
Temperature and humidity sensor 10... Lighting 11... Control unit. Representative patent attorney Katsuo Ogawa f') ＼ ・ -N + Hanawa

Claims (1)

[Claims] 1. In a plant growing device that has a sample chamber for growing plants and has temperature and humidity control functions and lighting functions, the temperature and humidity control point for the cultivation space inside the sample chamber is installed on the leeward side of the tank outside the sample chamber. A plant growing device characterized by: