Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"XBee"”.
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Optimization of supply chain management by simulation based RFID with XBEE Network
… was enhanced by the integration of RFID with XBee (ZigBee) wireless mesh network devices. Furthermore, the identification data need to be monitored and transmitted to the business organizations, which are connected through the network. This has been achieved by the integration of RFID-XBee …
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Forget Me Not- Possession Protection Devices
… by creating a mesh network of tags using Digi Xbee 3 Zigbee 3.0 microcontrollers communicating using the Digimesh network protocol to transmit and receive signals between each other to verify each of the individual devices, which are attached to personal belongings, are within a specific range …
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Wireless energy monitoring system
… processing the data (current and voltage) and Xbee Series 2 radio frequency (RF) modules. The circuit that allows the voltage and current readings is based on the schematics provided by the OpenEnergyMonitor project, but with small modifications.
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Quality-aware voice convergecast in mobile low power wireless networks
… using Arduino Due micro-controllers with XBee 802.15.4 radios. We create mobile scenarios by placing the Arduino Dues on iRobot Create mobile robots. Our results show that our system can adequately adapt to changing network and routing conditions to deliver sufficient voice quality by …
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Design of a System to Monitor Youth Workers' Heat Stress and Positioning using Non-invasive Techniques
… wirelessly over a ZigBee network using XBee radiofrequency modules. Utilizing the properties of radiofrequency transmission, the Received Signal Strength Indication (RSSI) is used to approximate the distance between devices. With accuracy comparable to GPS methods and no necessity for …
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Experimental and Computational Study of Vibration-Based Energy Harvesting Systems for Self-Powered Devices
… The communication is established by using two XBee modules. In the second part of this dissertation, we address the optimization of the output power of piezoelectric energy harvesters of aeroelastic vibrations. Given the complexity of high-fidelity simulations of the coupling between the fluid …
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Medium-assisted Microwave Telemetry for Directional Drilling Applications
… foundations of the MWT system, I inserted two XBee S2C RF modules into three dielectric rods made out of different dielectric materials. I show that the addition of the rods into a water-based environment significantly increased the throughput and reduced the bit error ratio and packet loss …
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Intelligent low-complexity widely deployable diagnostic tools for wireless edge device security using machine learning
… signals transmitted from SDR and commercial (XBee) sources. A developed ZigBee wireless testbed is utilized in each approach, where the interference signals are the matched signal (ZigBee) intelligent deceptive jamming attack and conventional CW jamming. Supervised machine learning algorithms, …
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Green Technologies and Sensor Networks for BMP Evaluation in Stormwater Retention Ponds and Wetlands.
… signal was distributed to collection units via XBee modules operating on point-to-point star communication using an IEEE 802.15.4 protocol. Signal communications effectively transmitted in the field during a storm event to within a range of 200 feet and collected 50 ±4 ml samples at synced timed …
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Internet of Things-Based Smart Classroom Environment
<p>Internet of Things (IoT) is a novel paradigm that is gaining ground in the Computer Science field. There’s no doubt that IoT will make our lives easier with the advent of smart thermostats, medical wearable devices, connected vending machines and others. One important research direction in IoT …