Dual Frequency Circular Shaped Two Port MIMO Antenna
Design and Development of Portable Oxygen Concentrator
Design and Simulation of Antenna for Foliage Penetration Application
Performance Enhancement of Microstrip Patch Antenna with Slots for 5G Communication
Ergonomic Wheelchair - Stretcher for Enhanced Patient Mobility
The Impact of Substrate Doping Concentration on Electrical Characteristics of 45nm Nmos Device
A Study on Globally Asynchronous and locally Synchronous System
Method of 2.5 V RGMII Interface I/O Duty Cycle and Delay Skew Enhancement
Performance Analysis of Modified Source Junctionless Fully Depleted Silicon-on-Insulator MOSFET
Automatic Accident Detection and Tracking of Vehicles by Using MEMS
Efficient Image Compression Algorithms Using Evolved Wavelets
Computer Modeling and Simulation of Ultrasonic Signal Processing and Measurements
Effect of Nano-Coatings on Waste-to-Energy (WTE) plant : A Review
ANFIS Controlled Solar Pumping System
Dual Frequency Circular Shaped Two Port MIMO Antenna
LiDAR technology is a common technique used to perform remote mapping of an area. The LiDAR sensor uses a pulsed laser to measure the distance from it to an object. In this paper, the performance of a 3D scanning by using a 2D LiDAR sensor is implemented. A Scanse Sweep LiDAR sensor (2D) has been mounted on a frame and a servo motor has been used as the base of the device to perform scan on each plane of the environment, in order to achieve a 3D scanning/mapping purpose. The data collected from the 2D LiDAR and the angle of the motor are analyzed to produce the 3D point cloud data (PCD) and visualized using a commercial available 3D visualizer.
Security systems like surveillance cameras will only record the incident and cannot do anything to prevent it. Nowadays most of the crimes occur in the lavish shop (jewellery), where CCTV are installed. Crimes are usually found out after it is being committed and the owner gets the information only after a crime incident. As per the survey, around 51% of the crime rate is found in the robbery. In the present, security system requires more storage because of continuous surveillance. The proposed system is applicable in the area where no one is permissible to enter, also in the area, where we need to investigate the crime. Once the system detects motion, the camera starts recording and captures live images. The image is processed to verify whether it is a human or not. If human is found in the image, the owner is quickly alerted by sending an alert mail. This mail will also contain the picture of the intruder captured by the camera. The security gate closes so that the intruder is captivated inside. The buzzer is used as an alarm to alert the neighbours about the intrusion. As a result of the above technology, the owner will have no worries regarding the shop in their absence due to real-time image feedback. The intruder is not able to escape from the site because of the security gateway. False triggering of alarm is eliminated.
A cross breed dielectric resonator antenna is a blend of miniaturized scale strip and dielectric resonator antennas. It is having the capacity of producing the double higher request modes. Adjacent groups with higher request modes have been converged to upgrade the bandwidth. The cross breed dielectric resonator antenna has three resonant frequencies. The lower, middle and higher resonant frequencies were related with the smaller scale strip line, roundabout patches, vertical strip and tube shaped DR. Various transmitting modes are executed to accomplish numerous reverberation groups at 6 GHz and X-band applications. This antenna has been applicable for WLAN, WiMAX and point to point communication applications. It is commonly utilized in millimeter wave groups. The proposed structure comprises of a dielectric resonator antenna, a round space, a quickening ring opening on a co-plane, ground plane. In this proposed structure, micro strip line feeding method is used. The proposed cross breed dielectric resonator antenna had great understanding between the reproduced results and the estimated results. The reenacted results of the proposed antenna are unraveled utilizing HFSS test system.
A microstrip hybrid structure for the implementation of compact transition bandpass filters is proposed in this paper. Now-adays wireless communication systems have high data rate such as satellite communications, radar systems, shuttle imaging radar and other wireless communication systems operates in wide band frequencies. The proposed transition consists of two quarter wavelength microstrip patches and a half wavelength slot on common ground. The elliptical patches on the lower and upper substrates are coupled with the common ground. The slot/aperture coupled transition is basically a band pass circuit and is realized via electromagnetic coupling, and different slot shapes are investigated in order to enhance the bandwidth. This paper proposes an elliptical shaped microstrip, which provides better gain and less return loss and low VSWR value for high frequency bands. A sample transition is designed and measured in a frequency range of 2.8 to 8.5 Ghz at 10 dB return loss.
Fire is an unavoidable disaster that occurs suddenly or unintentionally in place mostly in household residence. To observe continuously for accidental fire, it is not possible to appoint a person and that's why one takes the help of robot. In such cases these robots come in picture and will detect fire remotely. These kinds of robots are mostly useful in industries where probability of occurrence of fire accidents is more. These robotic vehicles are able to detect the fire and extinguishes the fire automatically with the help of temperature and gas sensor. To control the movement of robot, it contains motor driver and gear motors. Normally, the relay detects the fire and also exchanges or shares information with microcontroller through bluetooth module. The robot contains a jet water spray to extinguish the fire. If robot comes across some obstacle then it will not collapse and prevent itself automatically because it detects obstacle with the help of ultrasonic sensors with limited range. The communication between mobile phone and robot will take place through bluetooth which have graphical user interface to control the robotic movement. Some work has already been done in this field but significant scope is still left. Earlier, it has been observed that the robots operate with the limited range and also with microcontrollers with limited features. Now, we have planned to make our project in this field with improvements in terms of range and performance, therefore we have done review on this topic to find out problems. In this paper, we propose a prototype of an improved version of fire extinguishing robot using Arduino controller.