Real-Time Decentralized Control with CAN
نویسندگان
چکیده
This paper deals with two important concerns in decentralized control: (1) communication over field bus and (2) the transition from a single powerful, centralized controller to many smaller, distributed controllers. The former requires real-time network scheduling for the field bus to ensure that messages get delivered in a timely manner, while the latter requires a low-overhead real-time operating system to cater to the specific needs of distributed control. We present solutions to both of these problems in the form of a network scheduling scheme for the Controller Area Network (CAN) field bus and the EMERALDS real-time operating system which we have designed with the needs of the decentralized control application designer in mind.
منابع مشابه
Decentralized Control Mechanism Suppressing Delay Fluctuation in Wireless LANs
Real-time applications such as phone, videoconference, multimedia streaming, are typical applications which require relatively small delay and small delay fluctuation. To meet the QoS requirements of these applications, network infrastructures should have the ability to accommodate real-time traffic. Recently, IEEE802.11 wireless LANs, fundamentally based on CSMA/CA, have been widely used as pa...
متن کاملDRACON: QoS Management for Large-Scale Distributed Real-Time Databases
The demand for real-time data services is increasing in many large-scale distributed real-time applications including advanced traffic control, global environment control, and the nation-wide electric power grid control. However, providing quality-of-service (QoS) for data services in such large-scale and geographically distributed environment is a challenging task. In particular, both unpredic...
متن کاملIEEE802.11-based Wireless LAN Achieving Small Delay Fluctuation
Real-time applications such as phone, videoconference, multimedia streaming, are typical applications which require relatively small delay and small delay fluctuation. To meet the QoS requirements of these applications, network infrastructures should have the ability to accommodate real-time traffic. Recently, IEEE802.11 wireless LANs, fundamentally based on CSMA/CA, have been widely used as pa...
متن کاملDecentralized Model Reference Adaptive Control of Large Scale Interconnected Systems with Time-Delays in States and Inputs
This paper investigates the problem of decentralized model reference adaptive control (MRAC) for a class of large scale systems with time varying delays in interconnected terms and state and input delays. The upper bounds of the interconnection terms are considered to be unknown. Time varying delays in the nonlinear interconnection terms are bounded and nonnegative continuous functions and thei...
متن کاملDecentralized H∞ Structural Control with Experimental Validation using Multi-subnet Wireless Sensing Feedback
This study investigates the feasibility of deploying wireless communication and embedded computing technologies for structural control applications. A feedback control system involves a network of sensors and control devices. As control devices are becoming smaller, more cost effective and reliable, opportunities are now available to instrument a structure with large number of control devices. ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1996