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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Xin-Hua Yao Xue-Zeng Pan Jian-Zhong Fu Zi-Chen Chen |
| Copyright Year | 2005 |
| Description | Author affiliation: Dept. of Comput. Sci. & Eng., Zhejiang Univ., China (Xin-Hua Yao; Xue-Zeng Pan) |
| Abstract | NC system is a hybrid-tasks system, which is made up of periodic real-time tasks, nonperiodic real-time tasks and non-real-time tasks. Furthermore, tasks of NC system are not independent for the existence of precedence order and resource hazard. The traditional scheduling algorithms for real-time system are not suitable for these characteristics. A new hybrid-tasks system model is presented in this paper and the heuristic best-first search (BFS) algorithm is introduced to schedule tasks of this model. The BFS algorithm searches the state node matching all constraint conditions and minimizing (maximizing) the value of heuristic evaluation function in the state-space tree, so it solves the schedule problem with an optimal solution. The case study and computation complexity analysis prove that BFS algorithm can schedule tasks in NC system effectively. |
| Sponsorship | IEEE Syst., Man and Cybernetics Tech. Comm. on Cybernetics, Hong Kong Polytechnic Univ. Hebei Univ. South China Univ. Chongqing Univ. Sun Yat-sen Univ. Harbin Inst. of Technol. and Int. Univ. in Germany |
| Starting Page | 1026 |
| Ending Page | 1030 |
| File Size | 333130 |
| Page Count | 5 |
| File Format | |
| ISBN | 0780390911 |
| DOI | 10.1109/ICMLC.2005.1527094 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-08-18 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Heuristic algorithms Scheduling algorithm Real time systems Job shop scheduling Processor scheduling High temperature superconductors Computer numerical control Algorithm design and analysis Computer science Computer aided manufacturing best-first search NC system hybrid-tasks system heuristic search |
| Content Type | Text |
| Resource Type | Article |
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