Soil surface CO2 flux monitoring system based on WSN (wireless sensor network)

The invention discloses a soil surface CO2 flux monitoring system based on a WSN (wireless sensor network). The monitoring system comprises a hardware system and a software system. The hardware system comprises a circuit device and a mechanical device. The circuit device comprises a TelosB module, a CO2 sensor measurement module, a display module, a main control circuit module and a photoelectric switch sensing module. The mechanical device comprises a solar energy charging panel, a top cover, a support medium cover, a measuring chamber base. The measuring chamber comprises an air chamber with at least one air valve. The software system comprises a central control system, an air chamber control system, a measurement control system, a data processing system and a network management system. The central control system controls the air chamber control system, the measurement control system, the data processing system and the network management system. After the air chamber control system detects that the air chamber is completely closed, the measurement control system is started. Through the data processing system, real-time CO2 concentration and measuring time are displayed on a display module. After one measurement is completed, the air chamber control system make the air chamber open, a display interface of the display module returns to an initial interface and waits a starting command of the next measurement. The data processing system sends measurement data to the network management system and receives an instruction from the network management system. A technology of the invention is suitable for the CO2 flux monitoring field in which automatic acquisition is needed and massive information needs to be automatically processed.