Journal on Communications ›› 2013, Vol. 34 ›› Issue (12): 84-93.doi: 10.3969/j.issn.1000-436X.2013.12.010

• Papers • Previous Articles     Next Articles

Research and design of hybrid scheduling system of node operating system for cyber physical systems

Xiao-zhou DU1,2,Chen-hong CAO1,Jian-zhong QIAO1,Shu-kuan LIN1   

  1. 1 Department of Information Science and Engineering, Northeastern University, Shenyang 110004, China
    2 Communication Engineering Design and Research Institute of the General Staff of PLA, Shenyang 110005, China
  • Online:2013-12-25 Published:2017-07-05
  • Supported by:
    The National Natural Science Foundation of China

Abstract:

In accordance with the new characteristics of physical,internet and intelligence of CPS,a hybrid scheduling system was designed for CPS node operating system with real-time performance,flexibility,and adaptability.Based on the in-depth study of the intrinsic differences between event-driven scheduling mechanism and multithreaded one,a hybrid programming model was designed that combines collaborative multithread and hybrid stack management using adapter mechanism.A hybrid scheduling model was also designed that supports both event and thread task types.Reasonable real-time algorithms were implemented for verification.Experimental results show that the real-time per-formance of the scheduling system is obviously better than that of TinyOS,thus it is better suited for CPS than TinyOS does.

Key words: cyber physical systems, node operating system, scheduling system, programming model

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