| How to effectively use agricultural land resources has become a global problem to be solved,and plant lighting has brought hope to increase agricultural production.The plant lighting system is designed not only to make the system's light source meet the needs of plant growth for light intensity and absorption spectrum,but also to consider the convenience of system installation,maintenance and use,so that the system can be efficiently and flexibly managed and controlled through computers,mobile phones and other equipment to meet the requirements of different application scenarios.In addition,energy conservation,emission reduction and green development are the themes advocated today.Therefore,when designing plant lighting systems,environmental protection and system energy consumption should be paid attention to,energy waste and harm to the environment should be reduced.This paper formulates the functional objectives and overall framework of plant lighting system according to the needs and development trends of plant lighting,focusing on the research and design of the system's light source,dimming scheme,wireless communication,hardware and software,proposing a kind of plant lighting system solution based on the ZigBee/Bluetooth dynamic multiprotocol technology.The scheme uses LED as a light source and uses pulse width modulation for dimming,which ensures energy saving,environmental protecting,high spectral matching and efficient utilization of power.A light source suitable for plant illumination with good illumination ability is obtained through mathematical modeling and simulation.The system centrally manages and controls the luminaire through the control center,and each node is connected by ZigBee technology to save installation and maintenance costs.At the same time,the serial port and Ethernet interface are designed for the control center,it adopts the ZigBee/Bluetooth dynamic multiprotocol technology,which can provide various control methods including Bluetooth,supporting various control connection of terminals such as computers and mobile phones.On this basis,the basic plant lighting system was realized,and its main functions were tested.The test shows that the communication quality between nodes in the system is excellent and the lighting control is efficient and fast.The result verifies the correctness of the design of the plant lighting system.The plant lighting system proposed in this paper integrates monitoring,management and control,which can meet the requirements of energy saving,environmental protecting,being controlled effectively and flexibly.It can provide an efficient and specific lighting system solution for current plant lighting applications and has a high reference value for scientific research. |
PDF Full Text Request