Design of a fault-tolerant voter for safety related analog inputs
文献类型：会议论文
| 作者 | Yu HZ(于洪洲); Xu AD(徐皑冬)
|
| 出版日期 | 2010 |
| 会议名称 | 2010 3rd International Conference on Advanced Computer Theory and Engineering (ICACTE 2010) |
| 会议日期 | August 20-22, 2010 |
| 会议地点 | Chengdu, China |
| 关键词 | voter safety-related AI redundancy component Ioo2D IEC6I 508 fault-tolerant system |
| 页码 | 695-699 |
| 中文摘要 | This paper introduces a voting scheme for safety-related analog input module to arbitrate between the results of redundant channels in fault-tolerant system. The design approach is a distributed system using a sophisticated form of duplication. For each running process, there is a backup process running on a different CPU. The voter is responsible for checkpointing its state to duplex CPUs. In order to increase the dependability for safety-related controllers, the I/O modules use redundancy to reduce the risk associated with relying upon any single component operating flawlessly. The 1oo2D voting principle is commonly used in fault tolerant I/O modules to provide passive redundancy for masking runtime faults at hardware and software levels, respectively. A dual architecture (1oo2D) which provides high safety integrity to a rating of SIL 3 is presented. The outputs from two identical channels operating in parallel with the same inputs are supplied to a voting unit that arbitrates between them to produce an overall output. Based on the hardware logic model and FPGA technique, the study adopts the hardware voter which has much more advantage in the velocity and reliability. Finally, using modelsim simulations, we verify the effectiveness of the proposed voter design in preserving the hazard-free property of the response of an analog inputs module. |
| 收录类别 | EI |
| 产权排序 | 1 |
| 会议录 | 2010 3rd International Conference on Advanced Computer Theory and Engineering (ICACTE 2010)
 |
| 会议录出版者 | IEEE |
| 会议录出版地 | Piscataway, NJ, USA |
| 语种 | 英语 |
| ISBN号 | 978-1-4244-6539-2 |
| 源URL | [http://ir.sia.cn/handle/173321/8350]  |
| 专题 | 沈阳自动化研究所_工业信息学研究室 |
| 推荐引用方式 GB/T 7714 | Yu HZ,Xu AD. Design of a fault-tolerant voter for safety related analog inputs[C]. 见:2010 3rd International Conference on Advanced Computer Theory and Engineering (ICACTE 2010). Chengdu, China. August 20-22, 2010. |
入库方式： OAI收割
来源：沈阳自动化研究所
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