Design And Realization Of B-mode Ultrasonic Diagnostic Apparatus Of All-digital

Because B ultrasound diagnostic equipment has the advantages of noninvasive, convenient and intuitive, accurate diagnosis, reproducible, good reproducibility etc., the B ultrasound diagnostic equipment has been widely used in clinical diagnosis, it is also one of the most universal disease diagnostic method. With the continuous improvement of people’s living standard and our country’s attention in medical and healthcare system, the domestic B ultrasound diagnostic equipment market has great potential, however, the domestic B ultrasound diagnostic equipment manufacturers are of small size, low skill levels, lack of core technology, compared to the large foreign enterprises, they are less competitive. In this situation, to carry out the research of this subject has great significance in improving the technical level of Chinese industry and enhancing the international competitiveness of China’s medical equipment products.This topic will discuss how to use new technologies, new processes and new devices to complete the design of more highly integrated and miniaturized notebook B ultrasound, thereby overcome some of the shortcomings of traditional B ultrasound. In recent years, there are a lot of highly integrated and more cost-effective new chips, such as TI’s new AFE5805analog front-end and HITACHI’S newly released pulse excitation generated HDL6V5583. The B ultrasound diagnostic equipment discussed in this paper is divided into two parts:the ARM9platform part and the FPGA control front-end incentives and receiving part., ARM9platform uses S3C2440A chip and has Linux system installed, mainly used for the interface menu of B ultrasound, prompting message display, the running of various software packages and the user’s human-computer interaction; the FPGA control front-end incentives and receiving part chooses two pieces of XC3S1400A chip as the main control device to achieve the control of pulse excitation chip (HDL6V5583) and to simulate the configuration, data reception, data processing, image output, and data exchange with the ARM9of the analog front-end chip:AFE5805.This subject will complete the following issues: Firstly, explains the definition of ultrasonic and the related physical quantities; expounds the overall structure of digital B-ultrasonic diagnostic instrument and introduces the function of every part; analyses the key technology and its solution in design process of B-ultrasonic.Secondly, analyses the general structure of the hardware of B-ultrasonic and also analyses detailed implementation schemes of each part, including characteristics of chips and hardware design method newly launched by AFE5805, HDL6V5583semiconductor companies.Finally, based on the above hardware platform for the system FPGA software design and development, the general structure of the software block diagram can be showed. The detailed research and analysis has been done to the design and realization’s method of key part of the software.At the same time a series of feasibility schemes have been brought up.