In this paper, we present a wearable smart system to help visually impaired persons (VIPs) walk by themselves through the streets, navigate in public places, and seek assistance. The main components of the system are a microcontroller board, various sensors, cellular communication and GPS modules, and a solar panel. The system employs a set of sensors to track the path and alert the user of obstacles in front of them. The user is alerted by a sound emitted through a buzzer and by vibrations on the wrist, which is helpful when the user has hearing loss or is in a noisy environment. In addition, the system alerts people in the surroundings when the user stumbles over or requires assistance, and the alert, along with the system location, is sent as a phone message to registered mobile phones of family members and caregivers. In addition, the registered phones can be used to retrieve the system location whenever required and activate real-time tracking of the VIP. We tested the system prototype and verified its functionality and effectiveness. The proposed system has more features than other similar systems. We expect it to be a useful tool to improve the quality of life of VIPs.

In this work, a novel system is designed to remote monitor / automatic control of the temperature, humidity and soil moisture of the agricultural greenhouses. In the proposed system, the author used the mentioned sensors for monitoring the climatic conditions of the agricultural greenhouses; and the system makes a controlling process to fix the required parameters for plant growth by running / stopping the fan, air exchanger and irrigation devices when any changes happened in these parameters. The presented system is based on XBee protocol in the implemented wireless sensor star topology network (WSN) to monitor the agricultural greenhouses in real time, and used the GSM and Internet technologies to monitor the agricultural greenhouses from anywhere.  

No abstract

In this work, the author implemented a NOVEL technique of multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) based on space frequencyblock coding (SF-BC). Where, the implemented code is designed based on the QOC using the techniques of the reconfigurable antennas. The proposed system is implemented using MATLAB program, and the results showing best performance of a wireless communications system of higher coding gain and diversity.

The development of the healthcare systems, by combining Ehealth, I-health and GSM-health together, recently became the focus of attention of researchers. In this research, will develop our research that practically designed in the name of "Real Time Portable Health Care PP, GSR, BG, EMG with Alarm System Based on WSN" to assist in the development of the health situation in the hospitals. The system develops by supporting GSM and Internet together in the wireless sensor network (WSN) under ZigBee protocol and by supporting the printing of medical reports. Where the implemented system measures the biomedical data utilizing a group of biomedical sensors, which are patient position sensor (PPS), galvanic skin response sensor (GSR), blood glucose sensor (BGS) and electromyography sensor (EMG).The System monitors the sleep position and skin conductance (indicator to patient's calm) of the patients in real time with alarm for each abnormal case in the base station (BS) and lobbies, and sends SMS alarm to doctor's phone, and it follows-up patient's glucose rate and diagnosis the patient's electromyography status. Moreover, it sends the glucose data to doctor's phone and uploads it to the special web site by using the GSM and Internet technologies. In addition, it introduces a printed hard copy medical report. Moreover, the system stores the patient information and his health data in order to use it for any archiving process or statistical study.In the achievement system, three nodes are considered according to the facilities available but it stays monitor / diagnosis for an open node number. The system is implemented practically and applied for some persons under supervision of the specialist physicians, and the results obtained are very satisfied and present a great service to human care. All obtained results are presented in this paper.