Key Technologies Of Cooling Water Temperature Difference And Thermal Load Monitoring For Blast Furnace Based On WSN

This project starts with the wireless monitoring of cooling water temperature difference and thermal load for blast furnace, and focus on the problems that show when the WSN technology is applied to the wireless monitoring system of cooling water temperature difference and thermal load for blast furnace, taking WSN as the core technology. This thesis puts forward a technical scheme applied to wireless monitoring system, and completes the software, hardware design and routing protocol design for the system, after the relative requirement analysis of cooling water temperature difference and thermal load monitoring system for blast furnace.A wireless multi-hop ad hoc network, which consists of data acquisition nodes and relay nodes, is in charge of transmissing data and aggregating data to the base station that upload data to the monitoring terminal. The above-mentioned network achieves real-time monitoring of cooling water temperature difference and thermal load for blast furnace successfully. And the overall testing shows that the monitoring system based on WSN runs with high precision, high stability and reliability, and good real-time characteristics. This subject's main works are as follows:The hardware design for all kinds of devices is completed, including temperature sensor nodes, flow sensor nodes, relay nodes and the base station. In this thesis, detailed design schemes and the reliability testing and verification for all devices are simultaneously proposed.The EMAODV routing protocol is proposed for cooling water temperature difference and thermal load monitoring system for blast furnace, according to the system's working characteristics and based on AODV routing protocol; the application software programs for data acquisition nodes, relay nodes and the base station are developed, and various communication components for EMAODV routing protocol are also developed, based on TinyOS operating system. And the ad hoc routing algorithm testing proves that EMAODV routing protocol runs stably and reliably in the cooling water temperature difference and thermal load monitoring system for blast furnace.This thesis eventually performs an overall testing for the cooling water temperature difference and thermal load monitoring system for blast furnace, including hardware testing for all devices, data acquisition testing, wireless communications testing, command control testing and the adaptive testing for routing protocol when the routing protocol is in special occasions, for instance, some nodes are lack of energy, some nodes'position changes, or some nodes fail suddenly.