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Automation Technologies are on a rise today as their use has reduced the efforts of humans manifold. The concept of automation has its roots today from industrial to consumer grade applications. Smart Home Automation is one such concept evolved from a broader category of Building Automation. The advancement of many wireless technologies today like Bluetooth, Wi-Fi, RF, Zigbee, WiMAX, Zwave, etc paved...
Intruder Detection is needed in order to monitor sensitive passages or gateways. These passages are usually existing in airports, police stations, government buildings, courts or even in special laboratories, like nuclear or chemical laboratories. For security or safety purposes, nobody is usually allowed to walk through these passages without permission and during the working hours. Video streaming...
In hospitals, telemetry is utilized by physicians to provide accurate diagnosis for their patients. The increase penetration of wireless technology in healthcare environment for powering, monitoring and sensing purposes of implanted or attached devices to human patients' triggered new challenges in designing reconfigurable wireless transceiver intended for healthcare that can operate in multi-frequency...
A channel cognitive wireless sensor system is proposed for low-power sensor network applications. Based on an RF spectrum sensing technology, the proposed receiver system is designed with channel-selective operation only for a valid input RF signal at a designated frequency channel. The new receiver architecture was implemented at the ISM band of 2.4–2.5 GHz. The system performance was evaluated by...
Cognitive Radio (CR) technology is one of the favorable technology to efficiently deploy the underutilized frequency spectrum. Currently, the Federal Communications Commission (FCC) allowed TV white space (TVWS) which should protect the licensed user communication to utilize for data communication. The first actual deployment of communication system operating on TVWS is implemented in our group. However,...
This paper attempts to integrate RF technology into Nuclear Radiation detector circuitry. In the proposed system, a Nuclear Radiation sensor upon senses Radiation, activates its alarm, sends a low voltage signal to all the other Radiation detectors in the vicinity. This low voltage signal activates the individual relays in the other Radiation detectors causing to emit a tone that alerts residents,...
I have designed a computer input device for the visually challenged people using a special type of sensors known as Wearable sensors. This system is completely wireless, doesn't require a normal keyboard. My main objective is to help the blind people to type easily. This keypad will be portable and error made during typing can be easily rectified, which is not available in the older methods.
This paper presents a novel transmission power assignment mechanism for on-body wireless links formed between severely energy-constrained wearable and implanted sensors. The objective is to develop a model based framework in which RF signal strength is predicted and is regulated at a reference value. In particular, the body movement has been modeled as a stochastic linear system and a quantized Linear...
Development of reconfigurable RF resembles the Quest for the Holy Grail. It was started a long time ago; interesting developments have been achieved but it looks like it will never finish. However, as more and more microelectronic markets are under intense pressure, the need for reconfigurable RF systems is constantly growing. This paper aims at describing all current evolutions which push towards...
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