Design And Implementation Of HSDCD-Based High-speed Data Transmission System

HSDCD (High Speed Data Capacitive Device) technology is a high-speed communication technology which is developed recently. The technique is applicable to non-contact scenarios, especially used in various areas of industrial and medical CT. CT (Computer Tomography) imaging technology has many advantages, such as angles of high resolution and can provide three-dimensional density data. Therefore, CT imaging has greatly enhanced the accuracy of imaging, and expanded the scope of testing. But with the universal application of the technology, CT machine data communication system puts forward higher requirements. Because of its substantial increase in the number of sensors, the resulting need for large amounts of data transmission from the sensor end to the computer. And the previous means of communication can not satisfy the high-speed data transmission requirements, so a new high-speed data transmission system which has a more transmission capacity was required. The data transmission system which is used with this technology has got a large number of advantages, such as a high reliability and good transmission process. So the HSDCD technology has become the mainstream ways used in the CT machine. This paper mainly focuses on the new high-speed data transmission system which is based on the HSDCD technology.This paper firstly describes the technology-based high-speed transmission systems research status, the basic goals of the research, points out the various non-contact data transmission of the strengths and weaknesses assess the feasibility of HSDCD used in CT systems. Secondly we study and design the principle of CIMT and the transceiver antenna. Then the circuit hardware component and antenna are designed with Altium Designer Winter 09.With the Verilog HDL language in the QuartusⅡ8.0 software for design and test platform through integrated functional testing of the system is designed. Final test results can be verified that the system achieve the desired objectives, the CT machine to ensure the communication speed between the rotating body to a fixed receiver to work at 140Mbps.