Conclusion and future job

Paper type: Science,

Words: 692 | Published: 12.31.19 | Views: 728 | Download now

Computer Software, Wireless

Conclusion Since IEEE wireless protocol was launched about a decade ago, Wi fi technical criteria have been beautifully shaped and trusted due to the high-speed, wireless connection and large coverage of the Wi fi technology. Currently the demand pertaining to real-time position information of mobile users is unmatched. For outdoor environments, applying GPS can achieve high accuracy positioning results.

Nevertheless , in interior environments, due to the attenuation or obstruction of GPS alerts, GPS technology cannot be utilized effectively. Therefore , Wi-Fi centered positioning technology has been searched and developed for inside environments. From this thesis, the large market potential and fast development of mobile phones technologies were briefly assessed. It is figured the integration of the smartphones and Wi-Fi for indoor setting is a popular direction in research and industry commercialization. The main difficulties for indoor environment will be discussed with the conclusion that the fingerprint approach based on REALLY SIMPLY SYNDICATION is the optimum solution plus the smartphones is the most suitable mobile phone device due to its wide consumption. Commonly used evaluation methods and algorithms of fingerprint technique are analyzed. We successfully implemented a Wi-Fi based indoor setting system utilizing a smartphone plus the fingerprint-based positioning method.

A number of case studies had been designed and field trials were executed using several mobile systems (i. e. smartphone, ipad tablet and laptop) and the creation and requirements of software and hardware systems had been described. The statistical reaction to the placing errors(the maximum and minimum errors had been 4. 79 m and 0. 49 m respectively) in the specific indoor environment. This is in comparison against our testing program results of 2 m, which can be, more specifically, the space resolution of the greatest matching criteria. The activities of both equally systems were affected by the caliber of the REALLY SIMPLY SYNDICATION observations accumulated from a smartphone. The existing smartphones have got limitations within the quality of Wi-Fi adapters. It is predicted that more expensive and appropriate sized Wi-Fi adapters will be available in smartphones in future. The spatial resolution of the recommended indoor positioning system could be further improved by preparing more complex inside environment, and increasing the number of APs or perhaps combining various sensors into the smartphone.

Upcoming Work

Several elements can be further explored to boost the functionality of the suggested Wi-Fi centered positioning program for future work. Three main aspects are listed as follows:

Setup RSS repository for different brand Wi-Fi adapters: The proposed indoor setting system is device-dependent, thus diverse brand Wi-Fi adapters with assorted receiving functions need to be tested. The fingerprinting process should be done for each sort of Wi-Fi joindre. Further study needs to be completed to investigate fresh methods to reduce the impact of the device-dependent mistakes. High stability is expected for various other mobile devices instead of Samsung mobile phone.

Multi-sensor fusion: most up to date smartphones are equipped with other types of receptors such as accelerometer, gyroscope and digital compass, in addition to the pre-installed Wi-Fi joindre. Data extracted from accelerometers, gyroscope and digital compass could be very useful types of information intended for indoor positioning since it provides auxiliary info such as rate and alignment of movement. The improved setting system can easily therefore take full advantage of00 the observations from these types of sensors to boost the accuracy and reliability of the location estimates. Fresh algorithms pertaining to the included system have to be developed and its performance should be assessed.

Smartphone-based machine or cloud server: The positioning server of the proposed system is designed at a web-based laptop. With all the development of the CPU computation power and memory space of smartphones, we could setup the positioning server and the REALLY SIMPLY SYNDICATION calibration repository into a smartphone to decrease the info transmission period. This is important intended for the case of multiple clientele. Moreover, we’re able to also use impair service, that can be popularly found in IT industry, as each of our positioning server. More research should be prolonged into the impair service to enhance indoor positioning capability and performance.

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Conclusion and future job

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