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This paper proposes a dynamic channel utilization method to minimize transmission delay by considering radio interference and wireless link rate for software defined multi-channel wireless mesh networks (SD-WMN). The OpenFlow technology, which enables us to control flows by programming, is employed to effectively utilize multiple channels in SD-WMN for traffic balancing. Existing methods assume fixed...
This project describes the design of a measurement system for agricultural precision applications and environmental parameters. It will offer the real-time state of these variables, compile data autonomously, and these data will be received and analyzed in a workstation. The main project is based on a Wireless Sensor and Actuator Network for the environmental data acquisition.
Aiming at the problem that the existing GPRS monitoring system has no signal in some areas and the expensive price, an on-line monitoring system for transmission line based on 6LoWPAN technology is proposed. 6LoWPAN technology has built a bridge for communication between the wireless sensor and the Internet for the system, and achieved data collection, analysis to the transmission line temperature,...
More than 50 billion devices are estimated to be connected to the Internet by 2020. Incompatibility of devices and protocols (usually proprietary devices and protocols) are one of the major hurdles to be overcome to realise the Internet of Things (IoT) vision. IoT devices are typically constrained devices and this creates dependencies between the hardware, software and protocols used in the device...
The sensor node signal interface is the channel for sensor connecting to sensor node. Therefore, in order to verify the conformance between sensor network signal interface and signal interface standard, the design and implementation of WSN signal interface conformance test system based on web wsa presented. The test content included the signal interface description file, signal type supported by interface,...
After the burst of the dot-com bubble in the Fall of 2001, the Internet has become a participative medium, which allows users to interact with one another and with the services from anywhere and at any time. The potential of such a change is still to be fully exploited, and phenomena such as social networks and cloud computing are just two of the many innovative solutions that have been born from...
Next to traditional communication systems like servers or routers at the backbone and personal computers or laptops acting as clients, the Future Internet will additionally comprise many so-called smart objects. Most of everyday devices like coffee machines, fridges, or light switches will participate in this Internet of Things (IoT).Small-sized computers will connect these devices to the network...
The development of dependable context-aware applications represents a major challenge to software engineers of contemporary systems. In this context, this position paper proposes the definition of a Context-Aware Exception Handling Mechanism to be incorporated into the Mid Sensor Net, a middleware of multi-tier services for Wireless Sensor Networks(WSNs) that provides a expressive and flexible mechanism...
Cloud computing is a buzzword terminology applied to several nascent trends in the turbulent landscape of information technology. Computing in the "cloud" alludes to ubiquitous and inexhaustible on-demand IT resources accessible through the Internet. In the era of cloud computing, whole lifecycle of telecommunication services, especially service deployment, present new features. In this...
Wireless Sensor Networks (WSNs) are deployed for a wide range of applications to sense closely and collectively the environment in which they are placed. To provide services related to sensed data from a WSN to a user through Internet as per requirements has a great technological and commercial potential. For this it is necessary that a suitable WSN is quickly discovered automatically for the user...
Cyber-Physical Systems require the integration of various heterogeneous networks. To evaluate proposed algorithms in network research, real-world test beds are an indispensable complement to simulations. In this paper, we present a flexible heterogeneous mesh networking platform (FHMESH) which interconnects various heterogeneous networks, i.e. wireless sensor network, wireless mesh network, FM radio...
This paper presents the methodology how to utilize sensor networks in order to predict human's thermal comfort and sensation. The neural network was dynamically organized on the basis of correlations with the thermal sensation of the occupants and many other values in the sensor network, and the structure of the neural network was updated cyclically. In this paper, the air-conditioning system in an...
The increasing ubiquity of network-connected devices in our everyday environments (e.g., at home, at work, in the city) is driving an evolution in interaction patterns, from traditional human-computer to machine-to-machine scenarios. In parallel, in the years to come we will witness the growth of consumer electronics based on wireless technologies such as RFID (Radio-Frequency Identification) and...
M2M, means “Machine to Machine”, including “Machine to Mobile”, “Man to Machine”, etc., is the most popular application form of Internet of Things (IOT) in current stage, whose data transmission is supported by cable, wireless, mobile and other technology, which may be significant security vulnerabilities and risks. In addition, in many use cases, it is likely that M2M will be deployed in very large...
This paper discusses an embedded access gateway, which takes OMAP3530 as the center core and is built upon the embedded Linux 2.6 operating system. Based on the character and advantage of 3G and ZigBee, this article advances the solution scheme of the wireless home gateway. Mainly analyzes the software design of the gateway, including the way to realize the communication between the gateway and 3G...
In this paper, we present a network server that uses AJAX and VML technology to broadcast multiple sensor data in real time, all sensor data are also recorded in a SQL database. The lower layer software collect sensor data through different interface including RS232, 485, network and wireless network, then convert different sensor data into a XML format and send them to the server. User can choose...
Tiny, wireless, sensors embedded in a large number of Internet-capable devices-smart phones, cameras, cars, toys, medical instruments, home appliances and energy meters-can generate an enormous volume of small bits of data such as temperature and humidity readings, GPS co-ordinates and energy usage. The real value of this data lies in its analysis, which can lead to significant insights and actions...
The semantic integration of heterogeneous information sources across the enterprise together with product information available from the Internet of Things will be so vast, that one of the main challenges will be to provide the right information, at the right time, in the right place, and to the right people. This objective is addressed by the Aletheia - a project targeting the development of a distributed...
Mobile phones are an underutilized resource for connecting low-power wireless sensor networks (WSNs) to the internet. WSNs typically expend most of their battery power on data transmission. Mobile phones carried by the public could enable a hybrid approach where data makes a low-power short distance hop to phones in the vicinity using Bluetooth or a similar short range protocol, then uses the phones'...
This paper provides an in-depth study of wireless sensor network (WSN) application to monitor and control the swift habitat. A set of system is designed and developed which includes the node's hardware, GUI software, sensor network, and interconnectivity for remote data access and management. System architecture is proposed to address the requirements for habitat monitoring. The application driven...
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