Research on the Application of Multimodal Biometric Recognition Technology in Educational Scenarios: Insights from Educational Equity and Digital Literacy Based on Smart Bus Projects

This study is based on the smart public transportation project, which means that the current payment methods for public transportation in China have transitioned from cash and physical cards to QR code scanning. However, there are still significant pain points, and the elderly population is not proficient in operating smartphones, resulting in insufficient digital service coverage. The mature application of multimodal biometric technology in the fields of finance and security provides the possibility of technology transfer for public transportation scenarios. Through systematic technology transfer and educational scenario reconstruction, this study explores its practical value in bridging the digital divide in education, optimizing resource allocation, and building technological ethical boundaries. Empirical research has shown that the dynamic liveness detection and voiceprint fusion verification mechanism reduces the operating time of digital tools for elderly teachers by 82.3%, and dialect adaptation technology significantly improves the digital literacy of students in remote areas;The lightweight model driven by edge computing achieves millisecond response of educational resources in a low bandwidth environment. The research proposes a theoretical framework of "Educational Aging Assessment Standards" and "Dual track Technology Ethics System" to provide innovative paths for the digital transformation of education.