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Wireless Personal Area Networks (WPANs) are getting popular in a variety of fields such as home/office automation, e-healthcare, etc. In WPANs, most devices are considerably energy constrained, so the communication protocol should be energy efficient. The IEEE 802.15.4 is designed as a standard protocol for low power, low data rate, low complexity and short range connections in WPANs. The standard...
Traditional way of manual meter reading was not only waste of human and material resources, but also very inconvenient. Especially with the emergence of a number of high residential in recent years, this traditional way of water management was obviously inefficient. Cable automatic meter reading system is very vulnerable and it needs a heavy workload of construction wiring. In this paper, based on...
In view of low level of greenhouse automatic control system in China at present, this paper introduces a agriculture greenhouse environment monitoring system based on ZigBee technology, then gives the overall design of physical structure of system, network topology and its hardware and software designed of the composed modules. The PC software develop with Visual C++6.0 and SQL Server2000 that provides...
Currently in China the level of coal mine roadway roof abscission layer monitoring is low, especially in the most coal mine the transmission and observation of the underground separation data are by manual labor or by cable transmission, there is a high cost for coal mine. This paper introduces a roof abscission layer monitoring system based on ZigBee which is adapting to environment of coal mine...
ZigBee/IEEE 802.15.4 was created to address the market need for a cost-effective, low complexity wireless networking solution that supports low data-rates, low-power consumption in application of short range. In our design, the industry-leading CC2420 from Texas Instruments (TI) is the key single-chip RF transceiver compliant with ZigBee/IEEE 802.15.4. By modifying and trimming the ZigBee stack, a...
With the construction of economic and ecological zone around Poyang lake, aquatic vegetation monitoring plays an important role in promoting economic and ecological zone construction. Research on aquatic vegetation monitoring technology based on wireless sensor network (WSN) is a novel topic. However, this method is able to solve the propagation delay, floating node mobility, and high error probability,...
The main bottleneck to achieve energy autonomy in body area networks (BAN) is the design of an ultra low power yet reliable wireless system. In this paper, we first demonstrate the feasibility of an ultra low power receiver by presenting our implemented receiver chip that could operate on a total power of 479.5 uW, which is more than one order of magnitude lower than commercially available low power...
In this paper, a ZigBee-based wireless sensor network is configured for the robot to effectively communicate with the environment platform where each sensor node is implemented using a high performance microcontroller. The localization and the navigation functions are also required for the robot and the functions are executed with various types of sensor information. A new type of ZigBee stack is...
User Created Robots (UCRs) are personal robots that consist of toy blocks. Usually user controls UCR via short-range wireless communications such as IR, ZigBee, Bluetooth and so on. However, this current technology has some spatial limitations. UCR remote control system gives extension of UCR related services and activities. Also this system allows in conjunction with e-education services and other...
In this paper we present a wearable wireless accelerometer device for people fall detection in ambient assisted living (AAL) applications, communicating with care holders and relatives of the assisted person through an ADSL based gateway. The wearable system is a PCB with a commercial three-axes, digital-output MEMS accelerometer chip, a ZigBee transceiver and a programmable logic (FPGA). The raw...
The goal of this paper is to describe the challenges which have been faced in the design and implementation of a platform suitable for commercial wireless sensor-actuator systems. Battery life and cost have been the most important restrictions in the design, since they can determine the market success of a product. This paper presents the key issues that have been obtained, and how they have been...
A visual management platform is designed for wireless temperature and humidity sensor network. The platform offers a multifunctional visual interface, including data management, curve plotting of sensor node, display of topology and data sending and receiving situation, etc, so that the receiving data from sensors can be accessed more conveniently to be used for optimization of network performance...
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