A new anti-theft system based on the recognition of human blood vessels and blood flow

This paper introduces a new type of anti-theft system that combines color Doppler ultrasonography and infrared thermal scanning technology. It can identify the superficial vascular network distribution of a user’s palm and dynamic information on blood flow that includes blood flow velocity and pressure, and compares this information with the user's default information to achieve anti-theft capability. The new anti-theft system is designed on the basis of the variation in unique information on the human body, and further increases the safety of present security systems. A Chinese Invention Patent (No. 201110351016.3) on this system has been applied for.