Smart home automation system is increasingly used due to the wide manufacturer brands and various available technologies. From a social point of view, residents are admitted to smart homes for comfort, luxury, improving quality of live, and for providing security against intrusion and burglars. Secondly, home automation is achieved using a single controller, monitoring and the controlling many interconnected appliances such as lights, power plugs, HVAC system, humidity and temperature sensors, gas, smoke and fire detectors, audio, video and home theater as well as security and emergency systems. Smart homes are cheap, low-power, cost effective, efficient, and realize the automation of a variety of domestic appliances using user-friendly interface as remote control or any other handheld devices. Elderly, handicapped patients, and people with disabilities who have problems with locomotion difficulty can benefit from this smart home to totally operate, with high performance, all appliances and devices from anywhere in the house. When a resident is living alone, the ubiquitous access becomes very important and it is realized by using XBee transceivers that maintain RF wireless communication between the remote control and the master control panel board.

Abstract

SummaryThe normal practice for achieving some specified degree of reliability in automatic flight control systems has been to use methods which employ several identical feedback channels. The use of such methods requires additional sensors and other hardware components. Since such an approach has become increasingly expensive to implement, and attracts operational costs, owing to the increased weight arising from the extra equipment, any method is attractive which achieves the same degree of reliability through the use of only a single hardware path for each feedback channel. This implies the employment of special software techniques for both detecting any channel failures and reconstructing the feedback signals, which are then missing as a result of those failures. Such a scheme is presented and discussed in the paper and a number of results obtained from digital simulation are also presented to illustrate the effectiveness of the scheme for a wide variety of sensor failure conditions. The sensitivity of the scheme to initial errors in the estimation process, to the dynamic nature of the motion sensors, and to errors in the mathematical model of the aircraft dynamics, is also illustrated and discussed.

The rapid progress in wireless communication systems and handheld terminal devices has made the implementation of small multi-band antennas one of the main technical challenges. The number of wireless systems in which multimode mobile terminals are required to operate has been growing constantly in recent years. Nowadays handheld terminal phones use various cellular bands (GSM850/900/1800/1900 + 3G/4G/5G), wireless LAN, Bluetooth, Digital TV (DVB-H), FM radio, GPS, RFID, UWB, and WiMAX. The narrow bandwidth constitutes the major disadvantage of microstrip antennas in most practical applications. This study proposes a new wideband small size flower-shaped PIFA antenna. The PIFA design has newest flower structure and is supported by two or three shorting pins. The layer patch is slotted by Allah name in Arabic ‫.)اﷲ(‬ A capacitive feeding of the antenna was done via 50 coaxial cable to achieve impedance matching. The simulation was done using the high frequency HFSS10 simulator for different scenarios. Simulated results on the return loss, the radiation pattern, and the gain are promising. The devised antenna could be implemented in many wireless communication standards such

No abstract