摘要
针对嵌入式智能传感器节点数据并发处理问题,提出了DMA+多进程/多线程的方法。利用DMA技术进行数据采集,利用多进程/多线程技术进行并发数据的处理。该方案充分利用了ARM微处理器的硬件资源和嵌入式Linux操作系统的特性,可以有效提高系统数据采集与处理的速度和实时性。
Aiming at the problem of data concurrent processing of embedded smart sensor node, this paper develops a new method with DMA and multi-process/multi-thread technology. The system acquires data from multi-sensors with the DMA technology, and processes the concurrency data with the multi-process/multi-thread method. The method makes full use of the hardware resource of ARM micro- processor and the character of the embedded Linux OS, improving the speed and real-time performance of data acquisition and processing of the system.
出处
《单片机与嵌入式系统应用》
2011年第12期29-32,共4页
Microcontrollers & Embedded Systems
