International Journal of Scientific Engineering and Technology

Ashish Kumar ¹, Kriti Singh ¹, Debmalya Bhattacharya ¹

Affiliations
1 Department of Electronics & Communication Engineering, Vel Tech Dr. RR & Dr. SR Technical University, Chennai, IN

Abstract

The main purpose was to provide an implementable design scenario for underground coal mines using wireless sensor networks (WSNs). The main reason being that given the intricacies in the physical structure of a coal mine, only low power WSN nodes can produce accurate surveillance and accident detection data. The work mainly concentrated on designing and simulating various alternate scenarios for a typical mine and comparing them based on the obtained results to arrive at a final design. In the Era of embedded technology, the Zigbee protocols are used in more and more applications. Because of the rapid development of sensors, microcontrollers, and network technology, a reliable technological condition has been provided for our automatic real-time monitoring of coal mine. The underground system collects temperature, humidity and methane values of coal mine through sensor nodes in the mine; it also collects the number of personnel inside the mine with the help of an IR sensor, and then transmits the data to information processing terminal based on ARM.

Keywords

Wireless Sensor Network (Zigbee), Embedded Board, ARM.

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Debmalya Bhattacharya ¹, K. Bhaskar ¹

Affiliations
1 School of Electrical Engineering, Vel Tech Dr. RR & Dr.SR Technical University, Avadi, Chennai, Tamil Nadu-62, IN

Abstract

Guidance of aerial systems is generally based upon inertial navigation sensors and Global Positioning System. Inertial navigation sensors are assumed accurate and reliable for short duration of flights. Error of inertial navigation sensors accumulates and ultimately drifts from actual position increases with flight duration. On the other hand, Global Positioning System (GPS) is independent of flight durations. So errors of inertial sensors are corrected by information of GPS. There is another way to correct errors of inertial navigation sensors. This is based upon image matching techniques. Waypoints are defined along flight path of aerial vehicle. These way points are stored in aerial system as satellite images. When aerial vehicle reaches pre-stored area, it captures image of small geographic area (aerial image). Now image matching algorithm locates aerial image in pre-stored satellite image. Design of these algorithms is a challenging task. Image matching algorithms are computationally very expansive. A number of matching algorithms are evaluated and finally a computationally efficient algorithm is proposed.

Keywords

Image Matching, Aerial Vehicle, Efficient, Hashing, Chamfer Matching, Realtime.

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Ashish Kumar ¹, Kriti Singh ¹, Debmalya Bhattacharya ¹

Affiliations
1 Department of Electronics & Communication Engineering, Vel Tech Dr.RR & Dr.SR Technical University, Chennai, IN

Abstract

Today, ultracapacitors are a viable component for production aim designs in the power electronics world. The need for highly reliable back-up and emergency power are creating significant markets for energy storage and power delivery. Electrical wind turbine pitch systems, uninterruptible power supplies and electronic products such as wireless communication devices and digital cameras are some of the many applications where ultracapacitors have been designed in.

Ultracapacitors are components which have properties of a complexe capacitor system which is sensitive to voltage, temperature and frequency. The understanding of their behavior is primordial to characterize and operate them.

Keywords

Ultra Capacitor, Energy Storage.

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