Distributed rule execution mechanism in smart home system

Abstract

Smart home systems become an interesting topics in the last few years. Many researchers have been studied some features. Most of smart home system use a centralized architecture know as centralized smart home system (CSHS). The centralized mechanism is easy to manage and to configure. However, in fault-tolerant system paradigm it produces a problem. The entire system will fail, if the master station fails. Another problem of CSHS is centralized mechanism gives more data-flow. This condition makes the system has a greater delay time. To solve the problem, we propose a distributed rule execution mechanism (DREM). Compared to the centralized mechanism, the DREM allows a device to provide its service without any commands from the master station. In this mechanism, since the information does not need to go to the master station, the data-flow and the delay-time can be decreased. The experiment results show that the DREM is able to mask the failure in the master station by directly transmit the data from trigger device to service device. This mechanism makes the services provision without master station possible. The mathematical analysis also shows that the delay time of the service provision of the DREM is less than the delay time of CSHS.