DESIGN AND IMPLEMENTATION OF SENSOR NODE FOR WIRELESS SENSORS NETWORK TO MONITOR HUMIDITY OF HIGH-TECH POLYHOUSE ENVIRONMENT

Wireless Sensors Network is a novel field shows tremendous application potential. To monitor the environmental parameters of high-tech polyhouse the Wireless Sensors Network (WSN) is developed. The heart of this ubiquitous field is the Wireless Sensor Node. Moreover, the field of microcontroller based embedded technology is innovative and more reliable. Therefore, based on an embedded technology and the RF module Zigbee a wireless senor node is designed about highly promising AVR ATmega8L microcontroller and implemented for WSN development. Recently, the modern agriculturists are demanding sophisticated instrumentation for measurement and control of environmental parameters of the polyhouse. To enhance crop yield one has to provide controlled environment to the crop. The humidity is important parameter, which plays vital role on the crop yield. Therefore, a Wireless Sensors Network (WSN) is designed and implemented for monitoring of humidity of polyhouse and the results of implementation are interpreted in this paper

WIRELESS SENSOR NETWORK FOR SITE SPECIFIC CROP MANAGEMENT FOR PRECISION AGRICULTURE

Recently, due to significant research and development efforts, an innovative field of Wireless Sensor Network (WSN) technologies is evolving as powerful platform for systematically distributed data accumulation and data management. Because of wide application potential WSN is becoming more and more ubiquitous. It ensures the deployment of the technologies such as an embedded technology, wireless communication technology and computer information management technology etc. Emphasizing the themes of Site Specific Crop Management (SSCM), the prime objective of Precision Agriculture, the Wireless Sensor Network is designed and implemented to monitor the environmental parameters of the high-tech polyhouse. The WSN is designed for monitoring of the relative humidity, temperature and intensity of light within the poly house, in the real units. The WSN under investigation comprises ten WSNodes, routed through star networking protocol. The WSNodes are the intelligent devices, wherein the embedded technology is realized. The Hardware is designed about AVR microcontroller, wherein the standards laid down by the IEEE 802.15.4 are emphasized. To ensure wireless networking, the Zigbee devices have been employed, which are configured by the methods suggested by the Digi Corporation. The Base Station, an inherent part the WSN, is also developed and made smarter by developing the Graphical Users Interface (GUI) is dedicatedly developed in the VB environment. Therefore, to realize the monitoring of the domain-wise data of spatio-temporal variance, the WSN is established in polyhouse of smart infrastructure. The results of implementation reveal the facets of Precision Agriculture. On comparison with the standard WSN from Hanback Electronics, it found that, the WSN under investigation exhibit good reliability and preciseness

Chemical Synthesis and Functionalization of Cobalt Ferrite Nanoparticles with Oleic Acid and Citric Acid Encapsulation

The functionalized nanoparticles have now a prime importance because of their wide ranging biomedical applications. The particles having size range 30nm-150nm are useful for cell wall interaction specifically the pinocytosis which takes place in all types of cells. The Cobalt ferrite nanoparticles have been synthesized using chemical co- precipitation route and the pH and temperature of the synthesis is controlled to obtain the optimum sized particles. The coating of Sodium Oleate and Citric acid was carried out in aqueous medium at room temperature. The characterization of coated and uncoated particles has been carried out using XRD and IR which confirm the ferrite structure formation. The TGA-DTA analysis shows the coating of magnetic particles. The SEM micrographs reveal the particle size, before and after coating to be in the range of 45 to 90 nm. The saturation magnetization is found to be 16.8 emu/gm

REDUCING VIBRATIONS OF HAND OPERATED POWER TOOLS WITH VIBRATION ISOLATION AND REDUCTION MECHANISM

In this paper, we given a solution for an operator who works on ceiling or roofs standing in upright position with the power tool in hand during drilling and hole sawing operations .We given design solution for flexible shaft power tool with hydraulic viscous fluid damper and elliptical spring. This paper gives an outline for various methods of vibration isolator and damper. In reality, people who worked with power vibrating tools exposure with the vibrated syndrome that effect their normal life especially who involved for long time period. Hand arm vibration (HAV) is a widespread hazard in many industries and occupations involving the use of handheld power tools or hand fed machines. This paper describes a research and observation on the vibrating hand tool. &nbsp

Reducing Vibrations Of Hand Operated Power Tools With Vibration Isolation And Reduction Mechanism

In this paper, we given a solution for an operator who works on ceiling or roofs standing in upright position with the power tool in hand during drilling and hole sawing operations .We given design solution for flexible shaft power tool with hydraulic viscous fluid damper and elliptical spring. This paper gives an outline for various methods of vibration isolator and damper. In reality, people who worked with power vibrating tools exposure with the vibrated syndrome that effect their normal life especially who involved for long time period. Hand arm vibration (HAV) is a widespread hazard in many industries and occupations involving the use of handheld power tools or hand fed machines. This paper describes a research and observation on the vibrating hand tool. &nbsp