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This paper proposes an improving data fusion approach to enhance the efficient of data aggregation via Zigbee and embedded system. Distributed multi-sensor networks are an emerging technology that this study considers the problem of data fusion in wireless sensor network (WSNs) for event detection application. For such an application, maximizing accuracy and network lifetime are the two primary requirements...
A vehicular sensing network (VSN) is a type of wireless sensor network that empowers legacy resource-constrained WSNs by taking advantage of the rich network resources (e.g., the battery life, storage capability, and mobility) of vehicles. In this paper, we posit that the sensed data in VSNs is generally local in nature and propose a simple yet effective scheme, called To-and-Fro (TAF), for localized...
Following the trend of miniature intelligent sensing, wearing small, integrated wireless sensor nodes, such as one with accelerometers and compasses, to capture human body motions may have many applications in medical care and computer animation. In this paper, we demonstrate the use of intelligent sensors to capture human motions for home rehabilitation. We design a game to help a patient to conduct...
This paper proposes a new application framework for group tour guiding services based on RFIDs and wireless sensor networks. We consider a sensing field mixed with multiple independent tourist groups, each with a leader and several members. Members of a group will follow the moving path of their leader, but may occasionally roam around randomly on their own interests. Sensor nodes have to track leaders'...
One important goal of surveillance systems is to collect information about the behavior and position of interested targets in the sensing environment. These systems can be applied to many applications, such as fire emergency, surveillance system, and smart home. Recently, surveillance systems combining wireless sensor networks with video cameras have become more and more popular. In traditional video...
This paper presents a practical application called "activity map" to serve as guidance to show ambient intelligence-related contextual information gathered from both humans and their surrounding environments. The activity map utilizes results inferred from a location-aware activity recognition approach to statistically show a resident's possibly interleaved activities along with corresponding...
We aim to save energy by scheduling periodic sensors' duty cycles. Different from existing works, we integrate two important tasks, collision avoidance and duty cycling, into one scheduling of sensors' activities. Our scheme consists of two parts: a coloring scheme that assigns a "color" to each sensor and a color scheduling scheme that associates each color with a schedule. Each sensor...
This paper proposes a new application framework for group tour guiding services based on RFIDs and wireless sensor network. We consider a sensing field mixed with multiple independent tourist groups, each with a leader and several members. Members of a group will follow the moving path of their leader, but may occasionally roam around randomly based on their interest. Sensor nodes have to track leaders'...
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