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For the deployment of Wireless Sensor Networks (WSN) in nuclear reactor environment to monitor and measure the plant parameters, the WSN nodes should be rugged, able to withstand high temperature, radiation and should be qualified in the environmental tests, Electromagnetic compatibility (EMC) and seismic tests as per the international standards. Hence Industrial grade wireless sensor networking nodes...
Wireless Sensor Networks (WSN) is an emerging technology with a potential to revolutionize the way we sense and transmit the information. The applications are many and look to be limited by our imagination and ingenuity. Some of the important applications are process monitoring, military surveillance, structural health monitoring, environment monitoring, health monitoring, Nuclear, Biological and...
The paper presents introduction of wireless connectivity to pulsating sensors, a new class of sensors developed in-house and deployed in many physical and physico-chemical applications. For this a multi-node wireless system has been designed. The present design constitutes a base receiver station and multiple sensor nodes, which form a wireless network. The sensor output, which is in direct digital...
Prototype Fast Breeder Reactor (PFBR) is liquid Sodium cooled, mixed oxide fuelled, fast breeder reactor being built in Kalpakkam, India. This is a first of its kind in India by which we enter into the second stage of the 3-stage nuclear program in commercial scale. Three layered Distributed Digital Control System (DDCS) architecture was decided to be implemented for this reactor. The Graphical User...
Remote Terminal Units (RTUs) are single board, real time remote data acquisition & control systems that are used in Fast Breeder Reactors to acquire analog/digital signals [like voltage, signal inputs from surface thermocouple, leak detector & limit switches], sends digitized data packets over Ethernet to the nearest Local Control Centre (LCC) and generate control outputs in the form of potential...
Target tracking is an important application of Wireless Sensor Networks (WSN). This paper presents the design of a WSN testbed that used a custom-built wireless sensor node, specifically designed for target tracking. The sensor node consists of a Digi Xbee device, a Passive Infrared (PIR) and MaxSonar ultrasonic ranging sensors. Appropriate multi-channel MAC protocols were designed and implemented...
In any nuclear power plant safety is assured by well defined procedures & practices and by implementing redundant & diverse technology. Procedures concern to the component/system will vary from state to state. Prototype Fast Breeder Reactor (PFBR) is a 500 MWe capacity, pool type reactor utilizing liquid sodium as a coolant and fuel as Mixed Oxide (Plutonium and Uranium). In general there...
Real time simulation of process models are in heavy demand in the present day industrial scenario especially in Nuclear Power Plant scenario. Nuclear core being the most important and critical component in the Nuclear reactor, the primary concern is towards safe and efficient operation of the reactor by adopting better techniques for monitoring and control of the reactor. Effort is on at global level...
In wireless sensor network (WSN), position awareness (localization) of the sensor nodes is necessary to exploit the communication and to provide the meaningful information about their surroundings. Here Received Signal Strength Indicator (RSSI) technique is used as it requires no extra hardware and can be used for both indoor and outdoor environment. RSSI is having limitations such as high randomness...
A novel method to diagnose the bearing fault is presented. The proposed method is based on the analysis of the bearing vibration signals using Singular Spectrum Analysis (SSA). SSA is a non-parametric technique of time series analysis that decomposes the acquired bearing vibration signals into an additive set of time series to extract information correlated with the condition of the bearing. Information...
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