Design of a Tea Garden Antifreezing Control System

The design is based on ZigBee network communication module, which is mainly composed of power supply, master control, display, temperature acquisition, key control section, howler alarm and so on. It mainly uses ZigBee network to monitor the temperature value of collection point. The temperature is collected from DS18B20, and then transmitted to the main control port through the ZigBee network. Set up control system with MPS430G2553 mixed signal microcontrollers to establish control systems. The display screen is able to display the real-time corresponding temperature of various monitoring points. The warning temperatures of different monitory point can be set individually. When the temperature exceeds the upper and lower bound, it gives an alarm automatically, and there is audible alarm at live monitoring point, also monitory points can be added according to personal needs. Suitable site can be selected to place mobile monitory point, the data transmission defense will be more secure and reliable. It uses batteries for power supply, and the operation is much more convenient, avoiding cumbersome stay wire and other operations.