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In this paper, we report the design and validation of a novel wearable wireless system, TriboWalk, for gait monitoring and motion energy harvesting based on triboelectrification. Gait analysis is an important diagnostic method for medical rehabilitation. The TriboWalk system is capable of gait monitoring and analysis by capturing gait timing parameters and ground contact force (GCF) pattern based...
WSN (Wireless sensor network) comprises of large number of tiny, inexpensive, computationally capable and energy constrained nodes that find use in various surveillance and monitoring applications. Data sensed by these nodes is transfused to the base station using various routing procedures. The pivotal issue in wireless sensor networks is of lifetime and energy conservation as the sensor nodes' energy...
Jaundice is defines as yellow color of the skin in newborn infant. This health condition is common in newborn and happen due to overproduced of bilirubin. Jaundice clinically appears when the level of serum bilirubin rises beyond 250μmol/L (5 mg/dl). Jaundice could cause abnormalities in the newborn such as kernicterus and cerebral palsy. The advancement of Wireless Sensor Network (WSN) technology...
Sensors are widely in use because of low cost and multi functionality. Cognitive radio is nothing but intelligence in some form. Cognitive radio is a form of wireless communication in which a transceiver can detect the availability of channels. Wireless sensor networks are widely being deployed but some of the challenges that arise in wireless sensor network can be overcome by using cognitive radio...
One of the most important issue that must be addressed in designing communication protocols for wireless sensor networks (WSN) is how to save sensor node energy while meeting the needs of applications. Recent researches have led to new protocols specifically designed for sensor networks where energy awareness is an essential consideration. Internet of Things (IoT) is an innovative ICT paradigm where...
Hazardous environments at the workplace are a significant contributor to injuries due to accidents as well as chronic diseases. There are many occupational health and safety (OHS) systems, but they are costly or not flexible. This paper presents a low-cost OHS. It consists of various sensors that can be used to monitor whether a safety helmet is being worn, the worker is mobile and safety boots are...
There is a persistent problem that continues to be a relevant demand for the chemical, oil, food and pharmaceutical industries, the fouling detection in ducts systems. This work shows the early tests to develop a platform for detecting fouling in pipes and analyze specific locations using the impact hammer test based on a wireless sensor network communication. To minimize the costs of maintaining...
Many industrial application could benefit from the use of wireless sensor networks technology in safety critical context. This paper analyses the existing platforms to determine if they are suitable for a safety related application, analyses the possible modification to fulfill the requirements and propose an architecture that combines costs, performances and reliability.
Research indicates that data gathering in wireless sensor networks using unmanned aerial vehicles is a very efficient solution, with promising results. Because wireless sensors and drones are powered with batteries, the energy consumption is a key factor in assessing the efficiency of a data gathering protocol. This paper addresses the energy considerations for a proposed Medium Access Control (MAC)...
Traditional monitoring sensor has fixed sampling frequency. Whether the frequency is too high or too low, it is easy to cause some problems. This paper firstly puts forward sensor with changeable sampling frequency and its control algorithm. Considering the special circumstance that some nodes of the wireless sensor network are faulty, a trust model based on changeable sampling frequency. It is an...
Indoor environments are characterized by the existence of various pollutant sources. Moreover, at present, people spend more than 90% of their time inside buildings. Thus, the indoor air quality is undoubtedly a key factor to be controlled to ensure the health and comfort of the occupants. Most of the air quality monitoring systems on the market are very expensive and only allow to collect random...
Our paper deals with the design and implementation of a novel LASER based security system for inland aquaculture such as Shrimp/prawn farming perspective to Bangladesh. The system implements LASER as a mean of detecting intruders. A wireless sensor network based on nRF24L01 trans-receiver is used to communicate with the gateway and the sensors. The number of LASERs obstructed is determined by LDRs...
The WSN is a unique network and WSN contains sensors at huge scale as well as includes at least single base station. When building wireless sensor networks network there is critical issues are emerged such as preserving energy and load balancing. Lifetime of a sensor network is enhanced by implementing and mitigating energy consumption. Number of various parameters such as number of nodes, strength...
In wireless sensor networks data gathering is very important task. Nowadays analysis has been targeted on decreasing the energy consumption of the WSN. To solve this drawback the conception of movable sink is presented. In this approach mobile sink gather the inform the static sensors of the network and transfer it to base station. For efficiently gather the data sink's mobility pattern should be...
Providing complete coverage of sensing field as long as possible and maintaining the connectivity between the nodes is the main motto of the Wireless Sensor networks. The proposed system is implemented to provide maximum connectivity and extension in network-lifetime along with providing secured data transmission which is required for many applications. Maximum connected load balance cover tree algorithm...
Optimal power allocation problem for decentralized detection in a wireless sensor network (WSN) is presented. Our goal is to find a numerical solution for the optimal power allocation scheme that minimizes the total power spent by the wireless sensor network so that the detection error probability is below a desired value. We evaluate and compare the performance of two emerging nature inspired algorithms...
Wireless sensor networks have become an attractive choice for many monitoring applications in an unattended setups; some of these applications such as pipeline, railroad and highways monitoring require the sensors to be placed in a linear topology. These sensors need to be placed as far apart while still maintaining a minimum required coverage in order to minimize the required node count and reduce...
Using wireless geosensor networks (WGSN), sensor nodes often monitor a phenomenon that is both continuous in time and space. However, sensor nodes take discrete samples, and an analytical framework inside or outside the WSN is used to analyze the phenomenon. In both cases, expensive communication is used to stream a large number of data samples to other nodes and to the base station. In this work,...
As it is the fact that sensors deployed in the field are not accessible after deployment hence lifetime of the network is directly dependent on residual energy the sensors have. Conservation and efficient utilization of energy are very crucial in a sensor network. Clustering is one of the best-accepted strategies to efficiently utilize energy. Various approaches are proposed in the literature for...
Routing will serve to facilitate a number of sensors on the technology of Wireless Sensor Network (WSN) to identify the optimal path and manage energy consumption saving at the time of transmitting data. The optimal path can be identified by using one of the methods from the field of Artificial Intelligent that is path finding method. The method will provide an effective and efficient way to find...
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