Solar Powered RFID Token Operated Mobile Charging System

This research study focuses on developing a solar-powered, coin-operated mobile charging system. With the use of mobile devices and the need for convenient payment options, the system offers a good solution for the public, especially in areas where there is no grid. Using solar energy as a power source and integrating it with the use of coins, the system combines sustainable finance with environmental responsibility. The system works by recognizing coins or reading RFID cards that trigger the payment process. When a coin or RFID card is recognized, energy is drawn from the solar cell. The batteries store the energy generated by the solar panels, providing continuous power even during periods of low sunlight. This makes the system ideal for use in parks, bus stations and public spaces. A token-operated machine, together with an RFID reader, provides the system with revenue while giving the user change. The RFID feature provides convenience for active users by allowing users with tags to pay for their devices without the need for tokens. This dual functionality improves the user experience and reduces dependency on external maintenance, increasing the economic efficiency of the system. To maintain efficiency and safety, the system monitors key factors such as power levels and performance to ensure efficient and effective operation. Information such as payment status, token count, RFID usage and physical health are displayed on the user interface to keep users and staff informed during operation. The system also has a safety mechanism to prevent overheating. If the battery or system temperature exceeds the safety limit, an audible alert will sound to alert users and staff to potential problems. This allows immediate action to be taken to prevent damage to the system or the device being charged. The addition of a voice alert increases this security of the system and provides an additional layer of protection in addition to regular monitoring. This token- operated mobile payment system has a wide range of applications, from urban areas to remote areas where electricity consumption is low. Its design makes it adaptable to a variety of needs, allowing for future improvements such as integrating digital payments and expanding RFID functionality. This project presents a scalable, eco-friendly solution that integrates renewable energy with public services, advancing both technological innovation and environmental sustainability.