In wireless sensor and actor network research, the commonly used mobility models for a mobile actor are random walk model, random waypoint mobility model, or variants thereof. For a fully connected network, the choice of mobility model for the actor is not critical because, there is at least one assured path from the sensor nodes to the actor node. But, for a sparsely connected network where information cannot propagate beyond a cluster, random movement of the actor may not be the best choice to maximize event detection and subsequent action. This paper presents static and dynamic intelligent mobility models that are based on the inherent clusters' information of a sparsely connected network. Simulation results validate the idea behind the intelligent mobility models and provide insights into the applicability of these mobility models in different application scenarios.
Abstract. In wireless sensor and actor network research, the commonly used mobility models for a mobile actor are random walk model, random waypoint mobility model, or variants thereof. For a fully connected network, the choice of mobility model for the actor is not critical because, there is at least one assured path from the sensor nodes to the actor node. But, for a sparsely connected network where information cannot propagate beyond a cluster, random movement of the actor may not be the best choice to maximize event detection and subsequent action. This paper presents encouraging preliminary results with static intelligent mobility models that are found using the inherent clusters' information of a sparsely connected network. Finally, a proposal to develop dynamic intelligent mobility models for the actor based on a mathematical model is presented.
Cerebral palsy is a disorder that affects the muscle tone, movement and motor skills. Few percent of children affected with cerebral palsy experience problems while sleeping. These include seizure attacks, muscle spasms, pain, respiratory problems, etc. Bedstead is a unique bed designed for the cerebral palsy babies, which automatically massages the baby using vibration motors when some discomfort arises. An EMG placed on the baby senses the muscle spasms, which drives the vibration motors. Additionally, an accelerometer sensor detects seizure attacks by the principle of fall detection. During a seizure attack, a technical buzzer will alarm the caregivers, thereby reducing life-threatening conditions. If left untreated, these complications can result in dangerous situations. Another feature of this set up is that the parameters sensed is uploaded in a cloud, and also sent to caregivers as well. This bed ensures that the babies can have a deep and uninterrupted sleep with little or no intervention from the professional caregivers or family members.
The need for usage of renewable resources is increased for last few years mainly to protect our environment and it can be harnessed by means of wind turbines. In the present study, a small model Horizontal Axis Wind Turbine (HAWT) to a geometric scale of 1:13 has been designed based on the BEM theory using Computer Aided Design and Drafting (CADD). The scaled model of HAWT corresponding to the CADD model has fabricated and tested in the wind tunnel. The details of fabrication process, experimental setup and torque and rpm for different wind speeds of the blade were studied and reported.
A mobile infant incubator is a preterm infant care medical tool which provides warmth, humidity and oxygen all in a controlled state of affairs as required by the New born baby. This incubator offers a clean condition, which has natural air, perfect and clean encompassing conditions for the infants. The main aim of the paper is to design and develop an Arudino based temperature and humidity control in an incubator.In the course of their initial weeks of lives infants are subjected to pain and soreness, so to conquer this major problem we have introduced a mechanism to traject maternal features to the infant. For this reasons the features are mimicked viva a pillow unit that has embedded with sensors and actuators. Our proposed system consists of sensors for monitoring critical parameters, Pillow unit for comforting the infants, GSM for transferring information to doctors and parents and Labview for output evaluation and all together controlled by Arudino microcontroller. Advances in electronic procedures combined with sparing costs influence humidity and temperature to govern realistic with fantastically precise and solid performance.
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