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Map Aided Pedestrian Dead Reckoning Using Buildings Information for Indoor Navigation Applications

Positioning 2013年第3期4卷 227-239页

作者： Mohamed Attia adel moussa Naser El-Sheimy Mobile Multi-Sensor Systems Research Group Department of Geomatics Engineering University of Calgary Calgary Canada.

Navigation systems play an important role in many vital disciplines. Determining the location of a user relative to its physical environment is an important part of many indoor-based navigation services such as user navigation, enhanced 911 (E911), law enforcement, location-based and marketing services. Indoor navigation applications require a reliable, trustful and continuous navigation solution that overcomes the challenge of Global Navigation Satellite System (GNSS) signal unavailability. To compensate for this issue, other navigation systems such as Inertial Navigation System (INS) are introduced, however, over time there is a significant amount of drift especially in common with low-cost commercial sensors. In this paper, a map aided navigation solution is developed. This research develops an aiding system that utilizes geospatial data to assist the navigation solution by providing virtual boundaries for the navigation trajectories and limits its possibilities only when it is logical to locate the user on a map. The algorithm develops a Pedestrian Dead Reckoning (PDR) based on smart-phone accelerometer and magnetometer sensors to provide the navigation solution. Geospatial model for two indoor environments with a developed map matching algorithm was used to match and project navigation position estimates on the geospatial map. The developed algorithms were field tested in indoor environments and yielded accurate matching results as well as a significant enhancement to positional accuracy. The achieved results demonstrate that the contribution of the developed map aided system enhances the reliability, usability, and accuracy of navigation trajectories in indoor environments.

关键词： Indoor Navigation Map Matching Geospatial Data Model Pedestrian Dead Reckoning (PDR)

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Reliable Localization Using Multi-Sensor Fusion for Automated Valet Parking Applications

Reliable Localization Using Multi-Sensor Fusion for Automate...

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第十一届中国卫星导航年会

作者： Mostafa Sakr adel moussa Walid Abdelfatah Mohamed Elsheikh Naser El-Sheimy Profound Positioning Inc. University of Calgary

Multi-sensor fusion is the key to enabling reliable and accurate localization for automated valet parking(AVP) systems that can autonomously navigate in highly structured indoor environments. The curr

关键词： Navigation Sensor Fusion Automated Valet Parking Autonomous System Real-Time Localization

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Evaluation and Analysis of Oil Shale in Quseir-Safaga and Abu-Tartur Western Desert, Egypt

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Journal of Surface Engineered Materials and Advanced Technology 2014年第2期4卷 53-65页

作者： El-Abbas Moustafa Ahmed Noah adel Salem Ahmed Nehad Maureen Amir Mohamed Nosr Radwa Awad Mahmoud Gomaa Marawan moussa Petroleum and Energy Science Department Faculty of Engineering American University in Cairo Cairo Egypt Production Department Egyptian Petroleum Institute EPRI Nasr City Cairo Egypt Petroleum and Energy Science Department Faculty of Engineering American University in Cairo Cairo Egypt

Seeking ways to diminish Egypt’s dependency on foreign oil imports, we had to look for the obvious resources to exploit. Oil shale is one of Egypt’s resources that are left abandoned and not used. This project is aiming at introducing both experimental analysis for oil shale in Egypt and the best production technique for it. This study is about experimentally analyzing different samples of potential oil shale fields in Egypt. Samples that are analyzed in this project are from two locations in Egypt: Quseir-Safaga and Abu-Tartur Western Desert, and they are compared to one of the best oil shale fields in the world, which is from Green River Formation Colorado. The experiments were done using AUC lab retort to experimentally determine the critical temperature that will lead to the maximum production using sudden and gradual change in temperatures, which turned out to be sudden change at 500°C. Thereafter, the degree of API gravity was calculated for each run. Then the oil samples were determined for impurities and liquid chromatography results in the Egyptian Petroleum Research Institute. Part two of the study plan has been included to determine the ultimate ways of producing efficiently, ecologically and economically.

关键词： Oil Shale Retort Method Critical Temperature Oil Composition

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