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Policies are used for developing adaptable and flexible systems in a variety of areas. They are especially suitable for reducing the complexity of managing tasks, by providing a mechanism for automatically tuning the system without human intervention. Policy-based systems have been applied for wireless sensor networks (WSNs) for controlling several functionalities. However, none of them has been proposed...
Applications for Wireless sensor networks (WSN) usually take into consideration the specificity of the environment in which they are deployed in order to save the sensors' limited resources. In particular, the sensing task in urban environments requires hundreds and even thousands of sensors to be spread over the monitored area. Moreover, in environmental monitoring applications, sensors that are...
Vital sensor and wireless information communication technologies play important roles in providing continuous health monitoring systems. The key elements required for the vital sensor device are its simplicity and accuracy, whereas those for the wireless communication tool are its connectivity and comfortability. For a commercially available wireless vital sensor with capability of measuring three-dimensional...
This paper investigates the possibility of a realtime electrocardiogram (ECG) data gathering by a wireless vital sensor in houses and hospitals. First of all, to evaluate the ECG capability, we conducted clinical tests with 67 subjects comparing 24-hour data obtained at houses between the wireless vital sensor and a Holter monitor. Secondly, to evaluate the wireless transmission capability, we conducted...
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