Determination Of Dsp-based Urodynamic Systems

At the present, the application of the digital systems are being used increasingly in every walk of life. The kernel chips of these systems are DSP(Digital signal Processor). The excellence of these systems are higher precision, real-time process, and parallel process. From the point of view of digital and communication technology, DSP system has been become the foundation of the modern communication network and automatization technology. With the help of DSP system, we can not only integrate the hardware and software optimizely, but also use the basic tools which named "digital gene". On the other hand, from the angle of the computer and network development, the DSP technology is the sign of the wonderful period, in which the computer unit is becoming to the "currency elemenf'and the "digital gene".Nowadays, the equipments of uroflowrate mensuration which are adopted by the medical treatment departments of our country are the facilities in which the kernel chips are Single Chip Micyoco(MCSSl). Their ability of data process is limited,especially at the situation where we need the higher precision of result. Furthermore, they are poor in filter the interfere noise which is mixed with the signal. The content of this paper is started at the research of the chip named "TMS320C31",a kind of DSP chips which is widely used all over the world, exploit one kind of real-time data processing system at the final. This system is mainly used in the mensuration of uroflowrate. This kind of chip has a higher process velocity(40Mips), support the parallel process arithmetic, with a series port, parallel port, and DMA channel. It is very smart in exploitation work.In general, "uroflowrate" is defined with the quantity of urine discharged during a time unit. In the mensuration of urological surgery, it is one of the important parameters of urodynamics. The mensuration of uroflowrate has great helpness in the clinical diagnose and treatment to the sufferers who are suffered by the below urethra pathological changes. Furthermore, it is useful in the tracing effection of the treatment which doctors have adopted. Based on the parameters of uroflowrate, they can adjust the cure method in time. On the other hand, this system can be used in real-time signal sampling, signal analysis, and can be connected with PC(personal computer)to display the real-time results of the data process. When the frequency of signal is below to kilohertz quantitatively, the preactical test results of this system indicated that it is efficiency in signal process of biomedicine, automatic control, and audio etc. The purpose of design has been realized by the system ultimately. The main work of this paper involves the following aspects:(1) Exploit the application system which is needed in the project;(2) Design and compile the drivers of the system and simulate the arithmetics which are used in the system by using MATLAB tools;(3) Design and compile the software of the display interface;(4) Test and analysize the effects of the system.