Gourab Sen Gupta

Elder Care Based on Cognitive Sensor Network

The advancement of semiconductor fabrication technology and smart algorithms has allowed us to design and develop intelligent sensors with cognitive ability. Statistics reveal that in recent times the number of elderly people is increasing rapidly around the world and the situation is not going to ease in the foreseeable future. In this paper, we report a novel home monitoring system which is based on cognitive sensor network and is intended for elder-care application. The smart system consists of an optimum number of cognitive wireless sensors which are used to detect usage of electrical devices, bed usage pattern, flow of water, etc., and also incorporates a panic button. The cognitive sensors provide information that can be used for monitoring the elderly by detecting any abnormality pattern in their daily activities around the house. The system will generate and send an early warning message to the care giver, when an unforeseen abnormal condition occurs.

Master-Slave Control of a Teleoperated Anthropomorphic Robotic Arm with Gripping Force Sensing

This paper details methods of solving problems that are encountered when human beings teleoperate robots. Special emphasis has been given to the ease of operation and some form of force sensation. Through the use of a rigid control rig, fitted to the users arm, it is possible to easily control an anthropomorphic robot arm using a master-slave control methodology. The force being exerted by the arm is measured and fed back to the user who is operating the master unit

A low-cost sensing system for quality monitoring of dairy products

The dairy industry is in need of a cost-effective, highly reliable, very accurate, and fast measurement system to monitor the quality of dairy products. This paper describes the design and fabrication works undertaken to develop such a system. The techniques used center around planar electromagnetic sensors operating with radio frequency excitation. Computer-aided computation, being fast, facilitates on-line monitoring of the quality. The sensor technology proposed has the ability to perform volumetric penetrative measurements to measure properties throughout the bulk of the product.

Wireless sensor network based smart home: Sensor selection, deployment and monitoring

The ubiquitous nature of miniature wireless sensors and rapid developments in the wireless network technology have revolutionized home monitoring and surveillance systems. The new means and methods of collecting data efficiently and have led to novel applications for indoor wireless sensor networks. The applications are not limited to solely monitoring but can be extended to behavioral recognition. This can be of great value with the elderly as it can allow anomalous behavior to be detected and corrective actions taken accordingly. This paper details the installation and configuration of unobtrusive sensors in an elderly persons house - a smart home in the making - in a small city in New Zealand. The overall system is envisaged to use machine learning to analyze the data generated by the sensor nodes. The novelty of this project is that instead of setting up an artificial test bed of sensors within the University premises, the sensors have been installed in a subjects home so that data can be collected in a real, not artificial, environment.

Wireless Sensors for Home Monitoring - A Review

A review of wireless sensors and sensor networks, especially for in-home monitoring of elderly people, has been presented in this paper. The characteristics of various sensors for monitoring applications have been studied. The requirements of the sensor for making a smart sensor network have been investigated. A typical in-house developed system for home monitoring and elder-care application has been presented. A few patents on the sensors for home monitoring have been reviewed.

Saxophone Reed Inspection Employing Planar Electromagnetic Sensors

This paper deals with the research and development of a prototype of a planar electromagnetic sensor for use in nondestructive evaluation (NDE) of saxophone reeds. Analytical modeling and experimental research have been employed, leading to very promising results that could serve as a starting point for development of a commercial-grade sensor. In addition to the reed testing, the sensor could have wide applications in NDE and testing of several other products such as meat, dairy products, etc.

Network approach for physiological parameters measurement

A portable parameter monitoring and analysis system for physiological studies for assisting patient-centric health care management is developed. The system uses network approach to acquire the data from sensors and transmit the data on to a server through wireless means. The system automates the acquisition of physiological parameters by continuous display on the monitor screen. The programming is done using software to display traces and data in real time on a standard PC.

Smart Sensors and Sensing Technology

Sensors and Sensors Network.- Analysis of Hardware Encryption Versus Software Encryption on Wireless Sensor Network Motes.- Development and Experiment of Networked Control Systems with Congestion Control.- Data Messaging and Control in Sensor-Actuator Networks using PowerBus Technology.- Gas/Bio Sensors.- Remarks on Emotion Recognition Using Breath Gas Sensing System.- Electrochemically Synthesised Pd- and Au-Nanoparticles as Sensing Layers in NOx-Sensitive Field Effect Devices.- Phthalocyanine Functionalized Hybrids as Receptors for Enhanced Gas/Bio Sensing.- A Comparison of the Gas Sensing Properties of Purified and Platinum Decorated Chemical Vapour Deposition Grown Multi Walled Carbon Nanotubes.- Electrical Sensing of Biochemicals using Macroporous Silicon.- Saw Sensors.- Combined Infrared and Acoustic Beacon Tracker and its Application on an Autonomous Following Vehicle.- Electrostatic Microactuator Design Using Surface Acoustic Wave Devices.- Wide Band Linearization of a Millimetre-Wave, Linear Frequency Modulated Radar Employing a Surface Acoustic Wave, Delay Line Discriminator.- Fibre Bragg Grating Sensors.- Fiber Bragg Grating Sensors and Piezoelectric Actuators in Co-Located Configuration for Active Vibration Control Applications.- A Transmit Reflect Detection System for Fibre Bragg Grating Acoustic Emission and Transmission Sensors.- Magnetic Sensor.- A Real-Time Tracking System for an Endoscopic Capsule using Multiple Magnetic Sensors.- Ultrasonic.- High Frequency Ultrasonic Wave Propagation in Porous Aluminium.- Capacitive Sensors.- Capacitance-Based Sensing of Material Moisture in Bulk Solids: Applications and Restrictions.- Sensors Based on CNT.- The Design and Performance of Tactile/Proximity Sensors Made of Carbon Microcoils.- Novel Sensors Techniques.- Post-Earthquake Pipeline Leak Detection Technologies.- Multiple-Rangefinders Calibration Based on Light-Section Method Using Spheres.- An Adaptive Wiener Filter for Automatic Speech Recognition in a Car Environment with Non-Stationary Noise.- 3D-Shape Recognition Based Tactile Sensor.- Development of A Low Cost Compact Low Profile Phase Array Antenna for RFID Applications.- Implementation and Characterization of a Novel Acoustic Imaging through Beamformers for Automotive Applications.- Development of a Smart Home for Elder-People Based on Wireless Sensors.- Optimisation of the Nelder-Mead Simplex Method for Its Implementation in A Self-Mixing Laser Displacement Sensor.

Voice recognition based wireless home automation system

Home Automation industry is growing rapidly; this is fuelled by the need to provide supporting systems for the elderly and the disabled, especially those who live alone. Coupled with this, the world population is confirmed to be getting older. Home automation systems must comply with the household standards and convenience of usage. This paper details the overall design of a wireless home automation system (WHAS) which has been built and implemented. The automation centres on recognition of voice commands and uses low-power RF ZigBee wireless communication modules which are relatively cheap. The home automation system is intended to control all lights and electrical appliances in a home or office using voice commands. The system has been tested and verified. The verification tests included voice recognition response test, indoor ZigBee communication test, and the compression and decompression tests of DPCM (Differential Pulse Code Modulation) speech signals. The tests involved a mix of 35 male and female subjects with different English accents. 35 different voice commands were sent by each person. Thus the test involved sending a total of 1225 commands and 79.8% of these commands were recognised correctly.

Characterization and comparative evaluation of novel planar electromagnetic sensors

The characterization of three types of novel planar electromagnetic sensors: 1) meander; 2) mesh; and 3) interdigital configuration, has been studied and their comparative performance has been evaluated based on their areas of applications. All of them are suitable for inspection and evaluation of system properties without destroying them. The experiments on fabricated sensors have been conducted and the results are presented here. The target application is to use a mixture of different types of sensors to detect plastic landmines.