The world's largest full LED lighting plant plant in the production

Japan Mirai company (Headquarters: Tokyo) in the city of Miyagi Prefecture, the city has built all the cultivation of all artificial lighting using LED artificial light plant plant. According to the company, which is the largest in the world, all plant plants using LED lighting. 10 thousand lettuce a day.

Mirai will be located in the SONY technology center in Sendai, the revitalization of the industrial park, the existing building into a plant. As one of the business by the Japanese Ministry of economy of northeast economy and Industry Bureau, Mirai prior to the development of environmental technology and suitable for cultivation of plant factory LED lighting development as the theme, GE and Japan jointly conducted empirical experiments. The design, construction and cultivation of the entire plant is responsible for the development of Kajima company.

The biggest feature of the plant is that the use of GE for the development of the plant in Japan LED lighting, the use of both a high degree of dispersion of highly directional LED light can be based on the growth phase of the plant irradiation of different wavelengths of light technology. For example, in the early stages of the nursery, the white light and red LED light source will be mixed together to promote photosynthesis. Then, the red light emitted by the LED illumination, which is equipped with a red blue LED light source, is used to promote the growth of leaves and rhizomes. Near harvest time, the white light will shine again to promote photosynthesis. Using this method, compared with the use of fluorescent lamp, not only reduces the power consumption by 40%, the same area of the harvest also increased by 50%. In addition, the Mirai did not disclose the specific wavelength of light and LED related technologies.

Photo: inside the culture room

In order to take advantage of the ceiling of up to 7m of the building, the development of the 6m high 15 layers of cultivation. The utility model not only integrates the lighting apparatus and the nutrient liquid circulation system, but also improves the function, and reduces the cost by using the general cultivation frame material. In addition, Kajima has also introduced the cultivation environment simulation technology, the use of the company after cultivation in the factory construction process in plant technology. According to the company, in order to avoid the temperature, air volume and illumination, etc., due to the multi-layer cultivation frame in a high direction, there are significant differences, the repeated calculation, and the design of air-conditioning and equipment configuration.

Through the use of LED lighting and 15 layers of cultivation, increasing the yield per unit area, improve the income of the plant factory. According to Mirai introduction, the current retail price of about 200 yen lettuce. Although the company did not disclose the wholesale price, but said there is no difference between vanilla and open-air cultivation, and sometimes even cheaper plant plant cultivation. The average price of lettuce, such as lettuce, is higher than open air cultivation, but when it comes to the price of lettuce in the open air, the two will be basically flat (Mirai on behalf of the board of directors Nagashima Muramoji).

At present, the plant is cultivated lettuce, endive, erect flower and leaf lettuce, lettuce and cress and other 6 kinds of leafy vegetables, from sowing to harvest time is 33 ~ 35 days. The plant was put into operation in early May 2014 and began to supply in June 20th. Cultivated vegetables have been sold in local supermarkets. The plant will be officially put into operation in the summer of 2014, annual sales target of hundreds of millions of yen. Mirai and other companies also intend to use the experience gained from the export plant plant.

Major achievements in research and development (April 2012 to March 2013)

Construction overview of the construction period: from September 2013 to March 2014 structure: construction area: about 2300 square meters of cultivation frame: 18 5-16 layer LED lamp: About 17500

More LED related information, please click on the China LED network or WeChat public account (cnledw2013).