PX4: A Node-Based Multithreaded Open Source Robotics Framework for Deeply Embedded Platforms Lorenz Meier‚ Dominik Honegger and Marc Pollefeys Abstract— We present a novel‚ deeply embedded robotics middleware and programming environment. It uses a multithreaded‚ publish-subscribe design pattern and provides a Unixlike software interface for micro controller applications. We improve over the state of the art in deeply embedded open source systems by providing a modular and standards-oriented platform
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Telecommunication Applications‚ Personal Home‚ Hospital Care. ZigBee enables new opportunities for wireless sensors and control networks. ZigBee is standard based‚ low cost‚ can be used globally‚ reliable and self healing‚ supports large number of nodes‚ easy to deploy‚ very long battery life and secure.[1] 1. Introduction Now a day’s every electronic devices is provided with sensor controller. It is every difficult to provide charged batteries to controllers and also to maintain them. At
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application and OBU is a mounted device which use the services provided by the RSU.the device which provide services is termed as provider and the device which use the application is called user .the OBU is associated with each vehicle . It contain no of sensors to collect the information and to process them. With the help of wireless medium the information can be broadcast to other vehicles and to RSU. There may be single or multiple application units which use the services provide bye the provider with
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ZigBee ZigBee is a specification for a suite of high level communication protocols using small‚ low-power digital radios based on the IEEE 802.15.4-2003 standard for Low-Rate Wireless Personal Area Networks (LR-WPANs)‚ such as wireless light switches with lamps‚ electrical meters with in-home-displays‚ consumer electronics equipment via short-range radio needing low rates of data transfer. The technology defined by the ZigBee specification is intended to be simpler and less expensive than other
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them qualify for such. A taxonomy of WSNs applica-tions is shown in Fig. 6. In our opinion‚ applications of wire-less sensor networks can be broadly categorized into two groups‚ namely; bio-medical and non-biomedical applica-tions. A. Wireless body area networks (WBANs) Wireless body area networks (WBANs) is a wireless net-work which permits the full exploitation of wireless sensors and complementary technologies in health care system. They comprise of miniaturized intelligent devices attached on or
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a contrasting background‚ usually a black line on a white surface or a white line on a black surface. Usually the line follower robot works on a closed loop feedback algorithm where the feedback from the line sensor is used by the controller for correcting the path of the robot. The sensors are usually LED/LDR‚ LED/Photodiode or LED/Phototransistor pairs and the controller is an electronic circuit which executes the desired feedback algorithm. Gear motors are used for driving the robotic wheels.
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Cloud computing Wireless sensor networks RFID Smart environments abstract Ubiquitous sensing enabled by Wireless Sensor Network (WSN) technologies cuts across many areas of modern day living. This offers the ability to measure‚ infer and understand environmental indicators‚ from delicate ecologies and natural resources to urban environments. The proliferation of these devices in a communicating–actuating network creates the Internet of Things (IoT)‚ wherein sensors and actuators blend seamlessly
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ISSN : 0976-8491 (Online) | ISSN : 2229-4333 (Print) IJCST Vol. 3‚ ISSue 1‚ Jan. - MarCh 2012 Security Features used for Heterogeneous Networks in Wireless Architecture 1 Arshi Shamsi‚ 2Saoud Sarwar‚ 3Shamim Ahmad‚ 4Shahroukh Khan 2 IIMT Engineering College‚ Meerut‚ UP‚ India Al-Falah School of Engineering & Technology 3 Integral University‚ Lucknow‚ UP‚ India 4 APTECH‚ New Delhi‚ India 1 Abstract The ever-increasing demand of users for various wireless communication services has
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Radiations of GSM Base Station Antenna And Its Health Consequences- A Research conducted in Nigeria In Nigeria 98% of Global System for Mobile (GSM) base stations (cell sites) are sited within 20 meters from residential‚ offices‚ schools‚ business buildings. Cell phone antennas emit microwave frequencies‚ which are non-ionizing radiation. A research was conducted by measuring field data of radiation from GSM base antennas in Nigeria for supporting evidence public health risks from gsm radiations
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