Title :
Research on mixed scheduling algorithm in industrial process networked control systems
Author :
Han Pu ; Li Chao ; Dong Ze ; Cui Xiu Zheng
Author_Institution :
Sch. of Control Sci. & Eng., North China Electr. Power Univ., Baoding, China
Abstract :
Based on the comprehensive scheduling index, a mixed scheduling algorithm is proposed for the problem that periodic tasks and non-periodic tasks share network resources in industrial process networked control systems. A network QoS estimator is used to acquire current network states. In order to improve the network operational performance, mixed scheduling algorithm is adjusted online according to the current network status and comprehensive scheduling index. Both the mechanism analysis and simulation show that this algorithm has great real-time performance, low network packet loss and high average performance.
Keywords :
control engineering computing; local area networks; process control; quality of service; scheduling; Ethernet; QoS; comprehensive scheduling index; industrial process networked control system; mixed scheduling algorithm; network operational performance; network resource sharing; nonperiodic task; periodic task; Algorithm design and analysis; Analytical models; Electrical equipment industry; Industrial control; Job shop scheduling; Networked control systems; Performance analysis; Performance loss; Scheduling algorithm; State estimation; Comprehensive Scheduling Index; Mixed Scheduling; Networked Control Systems; QoS;
Conference_Titel :
Control and Decision Conference, 2009. CCDC '09. Chinese
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-2722-2
Electronic_ISBN :
978-1-4244-2723-9
DOI :
10.1109/CCDC.2009.5192684
