Wireless monitoring and transmission system for multi-sensor environmental data

This paper employs multi-sensor devices to design a system for collecting and monitoring environmental information, as well as for wireless encrypted transmission. The system adopts a distributed architecture with one master and multiple slaves. First, multi-channel slave device data processing boards are used to collect and display real-time environmental information such as temperature, humidity, smoke, PM2.5 concentration, and fire through sensors. Based on the requirements of different environmental scenarios, different threshold ranges are set to determine whether parameters fall within the threshold range. If any parameters are abnormal, an audio-visual alarm is triggered. Secondly, an improved encryption algorithm is used to encrypt the raw data after collection, and a wireless transmission module is employed to transmit the data, conveying environmental information from different areas to the main device's data processing board. Finally, the main device's information processing board card performs data decryption, processing, aggregation, and reporting functions. This achieves 24/7 real-time monitoring, encrypted transmission, and abnormal alarm functionality for environmental information across different scenarios.