The **AI21 Dynamic Face Recognition Access Control Model** is a sophisticated biometric system designed for various applications, including access control and time attendance. Here are some key features and uses of the AI21 model:

1. **Dynamic Face Recognition**: This system utilizes advanced AI technology to provide real-time facial recognition capabilities, ensuring accurate identification.

2. **Multi-Mode Access Identification**: The AI21 supports multiple identification methods, including facial recognition, fingerprint scanning, and RFID card access, allowing for flexible security solutions.

3. **High Efficiency**: With dual engines (CPU & NPU), the AI21 system is optimized for speed and accuracy, significantly reducing false readings compared to traditional systems.

4. **Report Generation**: Users can easily export time attendance reports via PC software, using connections such as USB, TCP/IP, or Wi-Fi.

5. **Wide Applications**: This model is suitable for various environments, including government institutions, offices, buildings, apartments, colleges, and enterprise settings.

6. **Enhanced Detection**: The system is equipped with dual infrared lights to ensure effective live face detection, even in low-light conditions【30†source】【31†source】【32†source】.

For more detailed information, you can visit the sources I found, such as Atta Technology and various distributors specializing in biometric systems.