Project center kumbakonam

project center in Tirunelveli  Wireless internet and cellular mobile services are essential part of our life infect modern world fully relies on wireless communication. Due to increase of users all around the world and rapid developments in different wireless technologies we may face crisis in future because continues increases in demand of data transmission could not be full fill in future keeping in mind the lack of radio frequency bandwidth . This project aims to demonstrate that Li-Fi which is an emerging branch of optical wireless communication can provide us matured solution of this fundamental problem. Professor Harald Haas who is recognized worldwide as a creator of Li-Fi technology gives his concept of transmission of data with the help of illumination .This procedure consists of sending bundles of information through visible light spectrum via LED light bulb .Now a day’s Wi-Fi (Wireless Fidelity) is most commonly use for Wireless indoor communication, which requi...

project center in Tirunelveli  Objective of this project is helping the blind/old persons travelling easy and illiterate people as well as pedestrian people using an interactive embedded Wireless Sensor Networks. The term blindness refers to the people who have no vision at all or people who have less vision. Most of the blind people take support from guide dogs to walk. We are explaining about the GPS and voice navigation system for blind people. In this blind people issues the commands and then receive the response using audio signals. GPS receiver is used to receive the values of the latitude and longitude continuously. With the advancement in technology usage of voice recognition is easier to send commands regarding directions to the blind people. As an application of this GPS technology here GPS based voice alert system for the blind persons are very useful, compact and simple system to handle. Today the increase in traffic cause pedestrian to the road harder. The t...

project center in trichy A hybrid battery power module composed of lead acid and LiFePO4 batteries for BLDC motor drive is proposed in this study. The lead acid batteries are used as the basic power source and directly connected to the motor drive without any power conversion losses. In addition, to enhance the instant power supply capability to the motor drive, the LiFePO4 batteries are integrated into the proposed hybrid battery power module. A two-phase interleaved dc converter is adopted to control the power flow among the LiFePO4 batteries, lead acid batteries and the motor drive. The common power requirement from the motor drive is designed to be totally provided by the lead acid batteries. Once the power demand became higher than the common level, the additional part would be instantly provided by the LiFePO4 batteries through the interleaved dc converter. The life of the lead acid batteries can therefore be enhanced by the high charging/discharging capability of the in...

project center in trichy This paper proposes a new single-phase single-stage switched-boost inverter with four switches. Like the quasi-Z-source inverter (qZSI) and quasi-switched boost inverter (qSBI), the proposed inverter has the main features as continuous input current, buck/boost voltage with single-stage conversion and shoot-through immunity. Compared to the qSBI, the proposed inverter uses one more capacitor and one less switch. This paper presents the operating principles, PWM control strategy, parameter design guidelines, and simulation results for the proposed inverter. To verify the performance of the proposed inverter, an 800 W prototype was built with an 110 V/50 Hz output voltage in stand-alone and grid-connected modes. The simulation and experimental results matched those of the theoretical analysis.

project center in trichy This paper presents a dual Modular Multilevel Converter (MMC) topology that utilizes energy exchange between adjacent arm Sub-Modules (SM), operating with out-of-phase modulation. The proposed configuration is applicable to medium-voltage, high-power variable-speed drives incorporating open-end stator winding machines. A novel concept of power redistribution between adjacent SMs in the dual MMC topology is realized through high-frequency transformer-based dc-dc converter modules. This concept offers a significant reduction in the sizing requirement of the SM capacitance and the stored energy in the MMC system, while avoiding the problem of wide voltage fluctuations of SM capacitors, especially at low operating frequencies. The proposed configuration can produce dc voltage; therefore, a machine speed-range from zero speed to the rated speed is possible under the rated torque operating condition. The operating principles of the proposed dual MMC configurati...

project center in trichy A hybrid battery power module composed of lead acid and LiFePO4 batteries for BLDC motor drive is proposed in this study. The lead acid batteries are used as the basic power source and directly connected to the motor drive without any power conversion losses. In addition, to enhance the instant power supply capability to the motor drive, the LiFePO4 batteries are integrated into the proposed hybrid battery power module. A two-phase interleaved dc converter is adopted to control the power flow among the LiFePO4 batteries, lead acid batteries and the motor drive. The common power requirement from the motor drive is designed to be totally provided by the lead acid batteries. Once the power demand became higher than the common level, the additional part would be instantly provided by the LiFePO4 batteries through the interleaved dc converter. The life of the lead acid batteries can therefore be enhanced by the high charging/discharging capability of the int...

project center in Tirunelveli           This project on “ RFID BASED INTELLIGENT TROLLEY SYSTEM USING ZIGBEE  aims at maintaining the database of inventory stock of the supermarkets automatically for the available products and the products purchased. The entire transaction is completed by drag and drop in the trolley itself. The basic principle is RFID based technology. A LCD display, Zigbee, EEPROM slot d used. These are controlled through a suitable embedded system  such as a ARM LPC2148.             The embedded system programming is done by using Keil ‘C’ and code is written in C language. The output received is the product details displayed in the LCD, the bill get generated and the amount will be paid through the smard card.             By executing this project one can automatically are creating a solution for updating th...

project center in Tirunelveli  Child kidnap or abduction is the unlawful taking away or   transportation   of a child against that child's will, usually to hold them unlawfully. This may be done for   ransom   or in furtherance of another crime. The most child abductions are executed during those who returning from school to home. The school van may lost a child without correctly knowing about his/her target place. Especially a new van driver does not know each child’s step off location. The child may feel sleepy when his/her step off location crosses. These instants are leading to child abduction and the main reason for this kind of unlawful activities is not having the adequate knowledge about the current location. This project proposes a novel child kidnap protection system with the help of RF ID tag arrangement and GPS facilitated school van. In this novel technique, the child can hold & swipe RF ID tag on the school van while he/she hires the sc...

project center in Tirunelveli    As the number of vehicle in transportation system are widely increasing; so it has been a major concern for highway authorities to facilitate effective control of traffic for collision avoidance. For various highways, these rising demands cannot be counteracted by further extending the existing road infrastructure giving a special importance to the efficient use of the existing network. In this aspect, this project proposes a novel approach for alerting the vehicle during blind curve spot. This system mainly depends upon the piezo electric sensor arrangements on both side of the blind curve road and along with the danger light system with display units. Depending upon the pressure applied on one side the danger light (red light) is activated on the other side and also display unit also intimating with the string “STOP & WAIT”. The aforementioned operation can be applicable to either side of the blind curve road.This advanced & aut...

project center in Tirunelveli  A commercial blood leakage detector, specific for hemodialysis therapy is currently available, which requires the sensing sensitivity of less than 1 ml of blood, and the blood leaking condition can be detected in 1 ∼ 2 seconds. The sensing method is basically based on the changes of the voltage signal in the sensor.  The main aim of our project is to inform the doctor about the patient conditions through voice and wireless communication. In this project Bio- system parameters namely heart beat, patient temperature and presence of the blood leakage. Abnormality in any one of the parameters will be send voice message to hospital staff and monitor through doctor.                                Bio technique is that biomedical signal transfer a link between the patient and the physician. By using a ...

project center in Tirunelveli  In a power system network the overhead lines are playing the vital roles to transmit the power to the consumers and also it should treated very precisely. Because the serious damages on these overhead lines may create the voltage, current surges and moreover it may spread the arc waves through the lines. These disturbances may travel into other healthy feeders as well as connected load. This project is proposing a novel inspection and control embedded system for the overhead power lines. This project is individually monitoring the voltage, current, temperature and humidity of the transmission line of concern. The above mentioned parameters are the key factors for the transmission line faults (either short circuit (or) insulation failure) so the proposed system is closely monitoring the above parameters. If there any violation in these parameters, the system immediately alerting the control room. The control room technician may use the android a...

project center in Tirunelveli  Vehicle Safety features are designed to avoid collisions and accidents by offering technologies that alert the driver to potential problems. This project is addressing an advanced vehicle assistant system (AVAS) by integrating RADAR, IR sensor units and GPS location finder applications. The main aim of this project is to assess the driver by intimating the left and right side postures of the vehicle and also alerting the driver during critical touching to the vehicle before to it. This proposed technique implemented with RADAR system that continuously transmitting a low frequency signal and according to the RADAR principle it is easy to find out the distance between the RADAR source to the obstacle. So the same principle is applied here to intimate the driver when the vehicle exceeds the predefined threshold distance between the vehicle and the vehicle before to it. The system also handling the left & right side posture monitoring in order ...