MUMBAI, India, July 24 -- Intellectual Property India has published a patent application (202641085350 A) filed by Sri Eshwar College Of Engineering on July 11, 2026, for Power Generation Using Piezoelectric Sensor For Irrigation Systems.
Inventors include T Suruthikrishna; Dr L Priya; Ms Muthu Shyamala; and T Pooja.
The application for the patent was published on July 17, 2026, under issue no. 29/2026.
Abstract: The present invention relates to a piezoelectric sensor-based power generation system integrated with an automated irrigation system for sustainable agricultural applications. The invention utilizes the direct piezoelectric effect to convert mechanical energy generated by human footsteps into electrical energy, thereby providing a renewable and eco-friendly power source for irrigation systems. The proposed system is particularly suitable for remote and off-grid agricultural areas where continuous electrical power is unavailable or unreliable. The system comprises a plurality of piezoelectric sensors installed beneath a walking surface to harvest mechanical energy from footsteps. The generated electrical energy is converted into direct current through a bridge rectifier, regulated using a voltage conditioning circuit, and stored in a rechargeable battery for continuous operation. A soil moisture sensor continuously monitors the moisture content of the soil and transmits the data to a NodeMCU microcontroller. Based on predefined soil moisture threshold values, the microcontroller automatically controls a relay to operate the irrigation pump. The pump is activated when the soil moisture falls below the required level and is switched OFF once adequate moisture is restored, thereby preventing over-irrigation and conserving water. The invention integrates renewable energy harvesting, energy storage, soil moisture monitoring, and automated irrigation into a single compact system. By utilizing otherwise wasted mechanical energy, the system reduces dependence on conventional electricity, lowers operating costs, and minimizes environmental impact. The modular design allows the number of piezoelectric sensors to be increased according to power requirements, making the system suitable for farms, gardens, greenhouses, and other agricultural applications. The invention provides a cost-effective, energy-efficient, and environmentally sustainable solution for intelligent irrigation while promoting precision farming and efficient resource management.
Disclaimer: Curated by HT Syndication.
