Basic Application Of Wireless Microwave In The Field Of Facility Agriculture

Intensification of facility agricultural area is strong, and technicians and producers cannot accurately obtain all environmental conditions of farm. Thus, transmission network systems of wireless microwave can save human resources on the farm production on a large extent, improve accuracy on the farm environmental monitoring, and provide real-time environmental data for facility agriculture environmental control. Now regulatory method of facility agriculture in the target monitoring area is single, micro-control technology is undeveloped, and facility agriculture cannot intuitively feel what happened in the environmental condition in the target monitoring area. Way of work is limited to the wired, method of traditional wired work need lay cables, and it is very inconvenient in the use, maintenance, installation and so on. Traditional wireless transmission network is mostly limited by the impact of network, the picture delay, the transmission channel, the signal quality and other aspects. Traditional data transmission network must be under visual conditions(not have obstacles between transmitter and receiver) to transmit the normal data, would be interfered by other air wireless signal in the transmission process,directly or indirectly limit data acquisition, and greatly reduce reliability and efficiency of the system. Because of multi-carrier and other feature of COFDM(coded orthogonal frequency division multiplexing) wireless image equipment, with "non-line” transmission feature, it can achieve a high probability of real-time data transmission stably in " non-line”interference case in villages and towns, hilly area, farming/planting area, and other complex working environment, Modern wireless transmission system(close distance ≤50km) mainly be dominated by wireless microwave.