Underwater Energy Harvesting Enabled Smart Sensor Networks for Water Industry

该项目将开发、生产和测试一种可行的、面向未来的电池替代能源采集（EH）系统，用于饮用水监测应用。与所有供水公司一样，西特伦特水务公司（STW）必须遵守水务管理局不断减少漏水的目标。定期监测水流和压力，发现新的泄漏，STW每天两次传输流量和压力数据。为了保持合规，STW最近在其管道系统上更换了10,000多个电池供电的记录仪。新的记录器每天发送48次。在这种水平下，电池可以使用5年。电池消耗的80%是用于GPRS传输数据。STW每5年更换电池的成本为200万英镑，整个英国水的成本为2000万英镑*。很明显，EH系统必须能够维持当前的数据传输水平，并随着泄漏目标的收紧而提高传输水平。为了使自来水公司节约用水，EH系统必须至少使用15年。在此期间，泄漏检测目标将下降两次，因此系统必须能够支持更大的系统需求。

This project will develop, produce and test a viable, future-proofed battery replacement Energy Harvest (EH) system for potable water monitoring applications. Like all water providers, Severn Trent Water (STW) must be compliant with Ofwat’s ever-reducing water leakage target. Regular monitoring of water flow and pressure identifies new leaks, STW used to transmit flow and pressure data twice per day. To maintain compliance STW has recently replaced 10,000+ battery powered loggers on their pipe system. The new loggers transmit 48 times per day. At this level, the batteries last 5 years. 80% of the drain on the battery is the GPRS transmission of data. The replacement cost of batteries every 5 years is £2 million for STW, £20 million for UK water as a whole*. There exists a very clear imperative for an EH system capable of sustaining the current level of data transmissions and higher levels too as leakage targets tighten. To achieve a sensible saving for water companies, the EH system must last a minimum of 15 years in service. Leak detection targets will fall twice in this period, so the system must be capable of supporting the greater system demand.