Signature Verification Method Based On Position And Pressure Measurement

While rapid development of the information technology brings people the enormous convenience in the daily life, also causes the network security troubles to encounter the unprecedented challenges. Therefore, the real-time accurate individual status authentication is extremely important. The traditional status authentication based on cipher,IC has its inherent insufficiency: The cipher is possibly stolen, forgotten, the IC card possibly loses, is robbed and so on; But the status authentication way based on human body biology characteristic in virtue of solving above shortcoming obtains the more and more many applications.This paper presents an electrical pen for signature verification in view of the current development request. The pen has the ability to detect the X, Y and Z directional of writing force. In addition to the Z directional detection along the pen axis using a conventional PZT force sensor, a new proposed for the X and Y directional detection. The proposed method employs a two-dimensional (2D) angle sensor to detect components of the tilt angle of the ink rod, which correspond to the X and Y dimensional components of writing force. Furthermore, in order to make the electrical pen more compact and more portable, the sampling signal by the wireless transmission send to PC to process. Basic experiment in which strokes of Chinese characters and letters are written demonstrated the possibility of three-dimensional force detection. Error analysis also performed. Five items listed below show the main work that has been done in this paper.1.The purpose of the study is presented. A large number of references are collected and referred to, leading to an overview of the current national and international situation and developmental trends in the field of signature verification2.The principle of the electrical pen for online signature verification discussed theoretically.3.based on theoretical analysis , have achieved the mechanical design of the sensor and prototype of the electrical pen.4.Design the signal converting circuit, and the sampling data with the nRF401 wireless module send to PC.5.Basic experiments demonstrated the possibility of the electrical pen.