The unconscious refueling intelligent service system is a smart energy solution built on the Internet of Things (IoT), artificial intelligence (AI), and mobile payment technologies. Innovatively, it integrates Beidou high-precision positioning, computer vision recognition, and unconscious payment technologies to create a fully automated service process from vehicle entry to payment and departure. By establishing geofences through Beidou positioning, the system automatically triggers the service process when a vehicle enters the gas station area. It combines Car Re-ID technology and deep learning-based license plate recognition algorithms to accurately identify registered member vehicles. A smart display shows real-time vehicle profiles and fueling preferences (e.g., preferred fuel type, fueling amount) and intelligently assigns optimal fuel pump positions, guiding drivers to quickly complete refueling. The payment process leverages platform integration and identity recognition technology to enable an "add-fuel-and-go" unconscious payment experience. Drivers can access e-invoices via an app or mini-program and receive data-driven services like targeted marketing and fuel recommendations. The project innovatively delivers an "unnoticeable" experience (no stops, no operations, no waiting), significantly enhancing user satisfaction. It also provides a replicable technical model for the digital transformation of traditional gas stations and plays an important role in advancing smart transportation infrastructure.