Air quality monitoring system based on frequency hopping system

The design of real-time air quality monitor system is disccussed. The system combines with the virtual instrument technology and frequency hopping communication technologies to achieve wireless data transmission. After the system conducted a number of spectrum hole detection experiments, adjusted the carrier frequency accoding to the test results, and made full use of radio spectrum resources consequently. Experiment operation results have proved that there´s no significant signal interference during wireless transmission process, system can receive information effectively in real time, it can show gas concentration clearly and easy to read for non-professional staff.