Abstract:

In this article,a system of signature verification based on writing is introduced.We employ the touch-screen controller AD7879 to get the accurate writing pressure,and then use the MCU of 80C51 to transfer the data of the coordinates and pressure to the LabVIEW to display and process the data.This system achieves better performance of the anticipate function,thus building a safe and efficient system,in which it is very difficult to fake.Overall,this system is simple,stable and highly portable,and has bright future of wide application.

Key words: signature verification,writing pressure,LabVIEW,touch screen