A real-time operating system supporting distributed shared memory for embedded control systems
A real-time operating system supporting distributed shared memory for embedded control systems
复制标题
DOI：
10.1007/s10586-017-1140-9
复制
发表时间：
2017-03
期刊：
影响因子：
--
通讯作者：
Y. Tamura;T. Doan;Takahiro Chiba;Myungryun Yoo;T. Yokoyama
中科院分区：
文献类型：
--
作者：
Y. Tamura;T. Doan;Takahiro Chiba;Myungryun Yoo;T. Yokoyama
提出了一种为分布式嵌入式控制系统提供分布式共享内存服务的实时操作系统（RTOS）。基于模型的设计在嵌入式控制软件设计中被广泛采用，软件模块的源代码可以由控制器模型生成。生成的软件模块通过共享变量交换输入和输出值。我们开发了一个带有DSM服务的实时操作系统，以提供一个位置透明的环境，其中分布式软件模块可以通过DSM交换输入和输出值。RTOS是OSEK操作系统的扩展。我们使用一种叫做FlexRay的实时网络，它基于时分多址（TDMA）协议。DSM的一致性是根据FlexRay传输数据的顺序来保持的，而不是使用节点间同步。如果FlexRay通信配置良好，则DSM的最坏情况响应时间是可以预测的。
The paper presents a real-time operating system (RTOS) that provides a distributed shared memory (DSM) service for distributed embedded control systems. Model-based design is widely adopted in embedded control software design and the source code of software modules can be generated from a controller model. The generated software modules exchange their input and output values through shared variables. We develop a RTOS with a DSM service to provide a location-transparent environment, in which distributed software modules can exchange input and output values through the DSM. The RTOS is an extension to OSEK OS. We use a real-time network called FlexRay, which is based on a time division multiple access (TDMA) protocol. The consistency of the DSM is maintained according to the order of data transfer through FlexRay, not using inter-node synchronization. The worst case response time of the DSM is predictable if the FlexRay communication is well configured.