Showing results: 1 - 7 of 7 items found.
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NIT Laboratory
NITLAB designed and implemented a Chassis Manager(CM) card to control and monitor NITOS nodes. CM card is comprised of a general-purpose microcontroller, an ethernet microcontroller and a relays circuit. General-purpose microcontroller supports a tiny web server and can serve http requests such as power on/off and reset. Furthermore, it returns the operation status of the node and can support a temperature & humidity sensor and a light sensor as well.
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NIT Laboratory
NITOS team has made mobile nodes using "iRobot Create" with a custom designed tray to hold the system board. The board is an "Alix Board" of "PC Engines" company . Commands are sent to the robot over a serial port and the whole system is powered from the robot's battery. The upward facing camera is used to recognise specific patterns on the ceiling, which help the robot navigate around the room.
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NIT Laboratory
The upgraded Outdoor Nodes have been developed by the NITLab team and support MIMO operation. The new version of the Outdoor Nodes are equipped with 802.11a/b/g and 802.11a/b/g/n wireless interfaces. They also feature 2-core Intel cpus, new generation solid state drives and usb web cameras. Last but not least, each node is equipped with light, temperature and humidity sensors.
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NIT Laboratory
The latest NITOS Chassis Manager Card is designed to add remote management capabilities of the NITOS nodes. CM Card consists of an Arduino Ethernet Microcontroller and a NITOS CM Card Shield. The CM Card's Firmware is a tiny web-server, that receives and processes http requests.
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NIT Laboratory
The NITOS prototype wireless sensor mote, is comprised of open-source and configurable modules. NITOS mote features the ATmega32u4 microcontroller running at 8MHz and operating at 3.3V. The aforementioned microcontroller is fully compatible with the Arduino platform that enables ease of software development and provides compatibility with several commercial sensing modules. Moreover, the platform is equipped with an Xbee radio interface that enables communication with the respective gateway. The Xbee module is a tiny device ideal for setting up mesh networks and has a defined rate of 250 kbps. This module uses the IEEE 802.15.4 stack which is the basis for theZigbee protocol. Apart from the Xbee module, NITOS mote can also feature a WiFi wireless interface in order to communicate with WiFi gateways. The developed mote currently features specific sensing modules, an air temperature and humidity sensor, a light intensity sensor and a human presencesensor. Various types of sensing modules and actuators can be further integrated exploiting existing Arduino software that implements several existing communications protocols. The firmware can be easily uploaded through the on-board USB connection. Figure 1 illustrates the developed NITOS mote and the respective gateway node.
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NIT Laboratory
NITOS has developed a specic framework that provides users with the ability to gather online measurements from temperature and humidity sensors and moreover analyze oine measurements stored in NITOS database.
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NIT Laboratory
NITlab has developed powerful Wi-Fi nodes, called ICARUS, in order to support the increasing demand of state-of-the-art resources for experimentation in NITOS facility. Experimenters are able to run and evaluate demanding processing algorithms and protocols in a large scale testbed. Icarus nodes are equipped with 802.11a/b/g and 802.11a/b/g/n wireless interfaces and feature new generation intel 4-core cpu's and new generation solid state drives.
