Integrating Power Management into Distributed Real-time Systems at Very Low Implementation Cost

The development cost of low-power embedded systems can be significantly reduced by reusing legacy designs and applying proper modifications to meet the new power constraints. The proposed power management techniques in the literature for implementing distributed power managers in multi-processor systems are very costly in terms of hardware and software modifications. For example, extra software code for power management must be integrated into each component of the system. Furthermore, in order to turn on a component at a specific time/event, extra hardware timers and interrupt controllers must be added to each component along with proper software/device driver modifications. In this paper, we propose a new centralized power management technique that reduces the power consumption of distributed realtime systems at very low implementation cost. Our power manager does not need software and hardware modifications of each individual component. Instead, it uses the model of the system/appl...

• Type: Conference
• Year: 2007
• Where: ASPDAC
• Authors: Bita Gorjiara, Nader Bagherzadeh, Pai H. Chou
• Keywords: ASPDAC 2007, Hardware, Power Management, Power Management Technique, Power Manager