MDP医用数据处理器的设计

根据主物电信号频谱范围多为低频、超低频,且要求观察记录信号的周期较长的特点所设计的MDP医用数据处理器兼顾了较高的采样频率、较大的信号存贮空间以及一定的特殊功能,使其在生物电研究中发挥了很好的作用。在设计过程中充分考虑了硬件和软件的特性和相互的协调。成功地解决了提高多通道数据采集率和软件运行时间的矛盾,最大限度地提高了硬件工作速度,并且尽可能利用了现有计算机的存贮空间,使最快采样率达13μs/点,信息存贮空间为48K字节/8通道。在TP-801计算机控制下具有8通道数据采集、实对叠加、2～4通道输出及常用的数据处理等功能。

Design of Medical Data Processor

According to the character of bioelectrical information which has low or superlow frenquency, long recording time, we designed this medical data processor (MDP). With its properties of high speed data acquisition, large memory capacity and some useful functions, it has played a important part in the bioelectrical research work. Considering the properties of hardware and software and the coordination between them, We have succesfully solved the contradiction between quickening the aquisition speed of multichannel data and the operation time of software, therefore, increased the acquisition rate to the highes, hardware limit of 13 us/point and made use of available memory capacity as large as possible which is 48k bite/8 channels. Controlled by TP-801 microcomputer, this MDP has the functions such as 8 channels data acquisition, real time superposition, 2~4 channels information output and some regular data processing functions.