Plant lighting "money" King Wang Toshiba plant plant intends to replace LED

Toshiba in November 12, 2014 for the first time the news media disclosed in September 30th to start the plant factory "Yokosuka Toshiba clean room farm". The use of clean room of the plant factory equipped with idle factories, production of green leafy vegetables such as lettuce, cabbage near sterile state. Now the operating rate is only about 25%, but Toshiba said, "will improve the skills of workers, began full production in the year 2015 before the end of March, Nissan 8400 vegetable".

The plant factory consists of four layers of buildings before the disk within the plant and is characterized in ISO 8 (according to federal standards for Grade 100 thousand) clean indoor germination, seedling cultivation, cultivation and harvesting, can supply no pesticides, low viable vegetables. Therefore, the plant is very attention to sterilization and sterilization. Before entering the room, put on a clean room, work clothes, wash your hands and air bath. Like a semiconductor factory.

The utility model is provided with a pure water preparation device and an electrolytic water generating device which are used for sterilization and sterilization. The use of pure water nutrient solution (RO water) is to remove chlorine in tap water and bleach, and then through a reverse osmosis membrane (RO membrane) filtering, ultraviolet sterilization on the water and then added nutrients, and supply shed cultivation. The electrolyzed functional water generating device can simultaneously generate acidic hypochlorite water and alkaline water for cleaning. These two kinds of water are used for hand washing and cleaning. The hands of workers and bring into the cultivation room of the first thing to wash and disinfect with hypochlorite water, and then use alkaline water degreasing cleaning.

The air in the air conditioner must be filtered through 3 filters to keep it clean. Through the first filter to filter out a large amount of dust, the particle size of less than 1 m was filtered through the filter of the second filter, and the particle size was less than 0.37 m by using the HEPA filter. The machine room is also provided with a carbon dioxide (CO2) generating device, which is used to increase the concentration of CO2 in order to promote photosynthesis. CO2 concentration was controlled at 800ppm, about two times the concentration of CO2 in the air.

In addition, the corridors and toilets and other places on the wall coated with Toshiba materials developed by the company has a bactericidal and virus inactivation effect of the photocatalyst RENECAT". This is a tungsten oxide photocatalyst, in the fluorescent light, such as low light can also play a role.

Work management with tablet PC

A temperature and humidity meter, CO2, is used to monitor the temperature, humidity and CO2 concentration in the shed, and these values are kept at the set value by automatic control. The pH and conductivity of the nutrient solution were monitored and controlled by the nutrient solution supply system.

The plant plant makes full use of Toshiba's technology, using Toshiba's own ICT and lighting products. Daily work instructions and performance management through a dedicated ICT system. Workers in the hands of the tablet computer will be displayed in which position sow what seeds, which will be moved to the location of the seedlings and other work content, the work is completed to enter the finished content. This will not only prevent workers from missing a job, but also to master the progress of work. You can also confirm the temperature, humidity, pH value of nutrient solution and other cultivation room environment on the tablet computer.

The lighting used by Toshiba lighting technology company's plant growth fluorescent lamp "Plantlux" transformation. Adjust the proportion of fluorescent material for plant factory. But Toshiba said, the plant plant in order to control the initial investment and the use of fluorescent lamps, the beginning of the year 2015 will be gradually replaced by low operating costs LED lights". In fact, part of the cultivation of the canopy has begun to use easy to control the wavelength of LED lamp for cultivation. The goal is to irradiate different wavelengths of light at different growth stages of plants to promote photosynthesis and plant growth.

The plant uses a method of changing the cultivation shed from planting to planting, depending on the growth stage. The sowing stage is to plant the seeds on the sponge and into a small box, placed on the tray of Kong Zhong, a seeding tray with 192 holes. In the cultivation stage, with the growth of the plant, will be replaced by a small box on a larger hole tray. Compared with other plant factory replaced together with the even shed cultivation tray, this way is more trouble, but according to the change of planting density and plant size change to different ways of cultivation shed height can be more effective use of space. But Toshiba also said it would consider other methods while using.

The factory is now cultivated lettuce, lettuce, lettuce, Swiss glass upright beet, pickled cabbage, spinach, green leafy vegetables such as arugula. The cultivation of basil, coriander, dill and spice plants in the future. Toshiba will begin to supply the canteen from late November 2014, will be in the Kanto region of Japan as the center, to form the mixed vegetables and vegetable sales boxed. In addition, the plant plant production of vegetables in general is more expensive than the open-air cultivation of vegetables, but Toshiba did not explicitly announced the price, said the retail price inconvenience announced".

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