Traditional single-core processors and multiprocessors architectures encounter some problems which are high heat generation, high cost to produce and high power consumption. In this paper, a model to achieve low power consumption by using several processors managed separately with useful energy saving strategies including switching the mode of processors, assign tasks to different CPUs, using optical fiber as transmitting media etc. is proposed. In this way, the architecture manages to disperse the energy dissipation. Some evaluations on power consumption, cost and performance are made which proves that it is an effective method to reduce the power consumption.

Energy and environment conservation is one of hotspots all around world now. Light emitting diode (LED) road illumination based on Wireless Sensor Network (WSN) technology can not only reduces complexity for arrangement of cables and route construction process, but also show advantage of LED illumination well. Meanwhile, it is good for energy and environment conservation. Route construction is a crucial issue when we use WSN technology. In this paper, we present two network structures, introduce the route construction process of illumination area and derive total transmit power (TTP) of WSN. Then we analyse impact of some factors on normalized TTP and do computer simulation to evaluate them.