Abstract
The author aims to propose an implementation scheme for the overall design of a water environment online monitoring system based on the Internet of Things. The design of the system is mainly divided into three main parts: The sensor node acquisition part, the sink node transceiver part, and the upper computer monitoring and control part. The sensor node collection section consists of electrochemical probes (temperature, pH, conductivity, dissolved oxygen, turbidity), hardware conditioning circuits, and Zigbee sending nodes. The measured parameters are identified and converted into electrical signals through chemical probes, amplified and processed by conditioning circuits, and finally converted into digital signals and encoded into data packets through the sending node, which are uploaded to the aggregation node. The receiving and transmitting part of the aggregation node consists of a ZigBee receiving node and a serial/USB communication module. The receiving node is responsible for receiving data packets sent through the sending node, and achieving communication and transmission with the upper computer through a serial P/USB communication module. The upper computer monitoring and control part processes the received data packets in real-time through the upper computer interface software, and displays them in an orderly and purposeful manner through chart analysis.
Published Version
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