Battery-Less Approach to Wireless Water Leak Detection

This study introduces a transformative approach to water leak detection systems, overcoming the limitations of conventional battery-dependent models. Our innovative design integrates advanced nanomaterials with dual-purpose monopole antennas, fulfilling critical roles in Radio Frequency (RF) energy harvesting and Bluetooth Low Energy (BLE) data transmission. The BLE system issues prompt leak alerts, while RF -harvested energy provides the system with enough power to send daily “heartbeat” pings, affirming continuous system functionality. The sensor unit, employing an innovative use of a metal sheet in the electricity-generating nanomaterials module, functions dually as an efficient water-leak sensor and an RF ground for antennas, demonstrating a synergy that enhances overall system efficiency. This approach eliminates the environmental concerns associated with battery usage like the need for frequent replacements, recycling complexities, and associated operational costs. This combination of RF energy harvesting and fluid-responsive nanomaterials represents a significant advancement in water leak detection technology, offering a more sustainable, reliable, and cost-effective solution.