Bøger af Hashim Elshafie

Wireless Sensor Network (WSN) connects the physical and computational world by monitoring environmental phenomena through ubiquitous devices called sensor nodes or motes. The agriculture production process is affected by different factors such as temperature, light, soil humidity, soil moisture. Precision agriculture is a field which provides suitable scenarios for the deployment of wireless sensor networks (WSNs). WSNs provide accurate information about environmental characteristics to farmers. This knowledge represents a valuable resource because it helps in real-time decision making. There are different types of problems and one of the main problems is the water shortage. Farmers crops are unreliable due to the variability in rainfall amount as well as its distribution. This project has been described the use of wireless sensor networks(WSN) to improve water management and for controlling other parameters such as temperature, light, humidity, moisture. wireless sensor network(WSN) and other agricultural techniques might help farmer to utilize and store the available water, improve their crop productivity, reduce the production cost and instead of depending just on prediction WSN make use of real time values, using Arduino UNO, sensors, LCD.

The Wireless Body Sensor Network (WBSN) is a wireless network used for communication among sensor nodes operating on or inside the human body in order to monitor vital body parameters and movements. The design and the development of such systems for health monitoring have gained a lot of attention recently in both the research and the industry. Mainly motivated by the increasing of healthcare costs and propelled by the recent advances in the development of miniature health monitoring devices. This project presents a preventive health care system with a flexible design. By using Heartbeat sensor there is a daily continuous monitoring.In this work, we propose a system based on an architecture to provide continuous monitoring. A model has been defined to describe the system global behavior. The derived behaviors include the synchronization messages to ensure the global coordination among the system components.

This summary is to simplify the attendance recorder system by using Radio Frequency Identification (RFID) technology. RFID based Parent SMS Alert and Attendance System is a web based application that will be developed to overcome this problem. With the RFID kit.The systems also have integrated with the RFID Database Handling System for a fully functional system. The information from RFID Database handling System will be used for attendance and for SMS Alert also.Main idea of the approach is to reduce manual work and to automate the attendance system the attendance system is an embedded one. Embedded stands for hardware controlled by software. Here, the software using a Microcontroller controls all the hardware components. The microcontroller plays an important role in the system. The main objective of the system is to uniquely identify and to make attendance for a person. This requires a unique product, which has the capability of distinguishing different people. This is possible by the new emerging technology RFID (Radio Frequency Identification).

Asynchronous Transfer Mode (ATM) is a connection-oriented packet switching technique that is universally accepted as the transfer mode of choice for Broadband Integrated Services Digital Network. Asynchronous transfer mode (ATM) is a cell-oriented switching and multiplexing technology that uses fixed-length (53 byte; 48 bytes of data, and 5 bytes of header information) packets ¿ called cells ¿ to carry various types of traffic, such as data, voice, video, multimedia, and so on, through multiple classes of services. ATM is a connection-oriented technology, in which a connection is established between the two endpoints before the actual data exchange begins. The problems related to the performance and quality such as delay replay and outside interferer specially when used the real time system the Objective To design a VoATM technology (Voice Over ATM) using OPnet simulation the methodology to achieve the objective of this research is by design a network using Opnet software to simulate a an VoATM network to make two voice devices contact to each other.