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Wireless Integrated Network Sensors (WINS) : A Border security solution:

Wireless Integrated Network Sensors (WINS) : A Border security solution Prepared By.... Deepak Kumar Mohapatra Pijush Kumar Banerjee


OVERVIEW… WINS Introduction Evolution Working Principle System Architecture Node Architecture Micro sensor Digital Signal Processing Spectrum Analysis Characteristics & applications Reference Conclusion


ABSRACT… Provides a new monitoring for the borders of the country . Easy identification of strangers or some terrorists entering the border area. Border area is partitioned into no. of mutually connected nodes . Noise detection, Image processing, Biometric scanning, Thermal detection, Density comparison, AV modulation etc. are the main key roles.


INTRO… WIRE LESS INTEGRATED NETWORK SENSOR (WINS). Require a few microwatt of power to operate, so it is cheaper than the conventional radar system . It produce a less amount delay to detect the target and reasonably faster.

Evolution Of WINS…:

Evolution Of WINS… WINS Initiated in 1993 under Defence advance research project agency (DARPA) in US. LWIM (Low power wireless integrated micro sensor) program began in 1995. In 1998, WINS introduced for wide variety of applications such as multihop , self-assembled, wireless network algorithms for operating at micropower levels.

Distributed sensor at Border…:

Distributed sensor at Border…

Working Principle…:

Working Principle…

WINS System Architecture… :

WINS System Architecture… WINS architecture includes sensor, data converter, signal processing, and control functions. The micro power components operate continuously for event recognition, while the network interface operates at low duty cycle. Continuous operation low duty cycle

WINS Node Architecture…:

WINS Node Architecture… 1998 : WINS developed by the authors  contiguous sensing, signal processing for event detection, local control of actuators, event classification, communication at low power Event detection is contiguous  micropower levels Event detected => alert process to identify the event Further processing? Alert remote user / neighboring node? Communication between WINS nodes sensor actuator interface signal processing for event detection control Processing event classification & identification wireless internet interface continuously vigilant operation low-duty cycle operation


Cont… WINS nodes are distributed at high density in an environment to be monitored. WINS node data is transferred over the asymmetric wireless link to an end user.

Nodes connection of WINS…:

Nodes connection of WINS…


WINS MICRO SENSORS… The detector shown is the thermal detector. It just captures the harmonic signals produced by the footsteps of the stranger entering the border. Whole area is partitioned into hexagonal region. These signals are then converted into their PSD values and are then compared with the reference values set by the user.

Detection Procedure...:

Detection Procedure...

Micro Sensor and Thermal Conductivity…:

Micro Sensor and Thermal Conductivity… TC v/s Pressure characteristics



Sensor boards…:

Sensor boards… (a) Mica network Board (b) Mica Sensor Board (c) Mica Power Board (d) TWR-ISM-002 Radar Board (e) All of the boards attached together. Packaging

Assembled Sensor Boards…:

Assembled Sensor Boards…


WINS DSP… If a stranger enters the border, his foot-steps will generate harmonic signals. It can be detected as a characteristic feature in a signal power spectrum. Thus, a spectrum analyzer must be implemented in the WINS. The spectrum analyzer resolves the WINS input data into a low-resolution power spectrum. WINS micropower spectrum analyzer architecture

Spectrum Analysis…:

Spectrum Analysis…

WINS Characteristics & Applications…:

WINS Characteristics & Applications… Characteristics: Support large numbers of sensor. Dense sensor distributions . These sensor are also developed to support short distance RF communication. Internet access to sensors, controls and processor.


Cont… Applications: On a global scale, WINS will permit monitoring of land, water, and air resources for environmental monitoring . On a national scale, transportation systems, and borders will be monitored for efficiency, safety, and security. On a local, enterprise scale, WINS will create a manufacturing information service for cost and quality control.

Unanticipated Faulty Behavior…:

Unanticipated Faulty Behavior… We experienced several failure as a result of undetectable, incorrectly download program and depleted energy level etc. For example node will detect false event when sensor board is overheated.


Reference… http://en.wikipedia.org/wiki/WINS http://en.wikipedia.org/wiki/Micro_sensors M. J. Dong, G. Yung, and W. J. Kaiser, “Low Power Signal Processing Architectures for Network Microsensors ”, 1997 International Symposium on Low Power Electronics and Design, Digest of Technical Papers (1997). A. A. Abidi , “Low-power radio-frequency ICs for portable communications”, Proceedings of the IEEE, 83, (1995). D. B. Leeson , “A simple model of feedback oscillator noise spectra”.

Conclusion… :

Conclusion… Densely distributed sensor networks. Application specific networking architectures Development platforms are now available . The network is self-monitoring and secure. Now it is possible to secure the border with an invisible wall of thousands or even millions of tiny interconnected sensors.