Research and Design of Long-distance Experimental Data Acquisition System Based on USB 2.0

Because of the limitations of the interface by which the traditional data acquisition systems are connected with PC,in this paper we use Field Programmable Gate Array and USB 2.0 interface chip CY7C68013,to design a data acquisition system based on USB 2.0 interface.Meanwhile,considering the limited transmission distance of USB,this paper realizes the remote transmission by means of network.Therefore we can realize the acquisition of remote experimental data.In the end,the whole system is tested and the correctness of functions of the system are validated.