现代仪器用实时分布式操作系统

为了给多功能，多参数，智能化，网络化的现代仪器系统提供一和中更好的硬件支撑环境，作者研制了现代仪器用弱实时分化布式操作系统（ＩＯＷＲＴＤＯＳ）其结构自底向上分为３层，通用硬件接口（ＧＨＩ）层，微内核（Ｍｉｃｒｏｋｅｒｎｅｌ）层和全局共享对象（ＧＳＯ）层，ＧＨＩ封装了硬件细节，为操作系统的其余部分提供了一个理想的机器结构，Ｍｉｃｒｏｋｅｒｎｅｌ是ＩＯＷＲＴＤＯＳ的核心，主要提供内存管理，多线程管理和

MODERN INSTRUMENT-ORIENTED REAL-TIME DISTRIBUTED OPERATING SYSTEM

The directions of modern instrument system are multi function, multi parameter, intelligence and network. To provide a more excellent hardware and software supporting environment for this trend, the authors develop a modern instrument oriented weak real time distributed operating system (IOWRTDOS). From the bottom to the top it consists of three layers: general hardware interface (GHI) layer, microkernel layer and global shared object (GSO) layer. GHI encapsulates the hardware and presents an idealized machine architecture to the rest of the operating system. Microkernel, as the core of IOWRTDOS, provides basic mechanisms of the operating system such as memory, multithreads and interrupt management. GSO transcends the physical boundaries between the processor nodes by making use of a few global shared objects and presents the system with a transparent distributed processing capability. Because the system integrates layer model and microkernel model in the architecture design and takes object oriented technique during the analysis and implementation, it has many advantages such as flexible architecture, excellent modularity, easy portability, free extensibility and good performance price ratios.