Intellectual Property India Publishes Patent Application for Design And Performance Analysis Of An Iot-Based Industrial Ac Power Control System Using Zero-Cross Integral Cycle Switching

MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202641073959 A) filed by St. Joseph'S College Of Engineering; Dr. N. Chidambararaj; Mr. K. Aravindhan; Laura Henrietta J; and Manju Sree A on June 15, 2026, for Design And Performance Analysis Of An Iot-Based Industrial Ac Power Control System Using Zero-Cross Integral Cycle Switching.

Inventors include St. Joseph'S College Of Engineering; Dr. N. Chidambararaj; Mr. K. Aravindhan; Laura Henrietta J; and Manju Sree A.

The application for the patent was published on June 26, 2026, under issue no. 26/2026.

Abstract: Industrial AC load control systems require fast, reliable, and low-stress switching mechanisms to ensure operational stability and energy efficiency. Conventional relay- based switching methods suffer from mechanical wear, slower response time, and switching transients, limiting their suitability for modern industrial automation. This paper proposes an IoT-enabled AC power control system based on zero- cross synchronized TRIAC switching using integral cycle control (ICS). The proposed system ensures that switching occurs at the zero-voltage crossing point, thereby minimizing inrush current, reducing electromagnetic interference (EMI), and improving device lifespan. The system integrates real-time voltage and current sensing modules (ZMPT101B and ACS712) to continuously monitor electrical parameters, along with embedded protection mechanisms for overvoltage, undervoltage, overcurrent, and no-load conditions. An IoT communication using ESP32 enables remote monitoring, data logging, and intelligent control via the ThingSpeak cloud platform. Experimental results show that the proposed system achieves significantly reduced switching delay ( 1ms) and improved response time compared to conventional relay-based methods (5-20ms), while maintaining high measurement accuracy and communication reliability. The developed solution provides a cost-effective, scalable, and intelligent architecture for industrial power control and smart energy management applications, enhancing operational safety, efficiency, and real-time decision- making capabilities. Keywords: TRIAC, Zero-Cross Detector, Integral Cycle Switching, IoT, ESP32, ThingSpeak, Overcurrent Protection, Industrial Automation

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