The device being tracked is connected to three Access Points and a Central Monitoring System. This paper presents an alternative technique to track the movement of indoor objects based on Bluetooth technology, least square statistical method and principles of motion. If the value of RSSI is in GRPR defined by zero, no unique function can be approximated. The RSSI value in providing the distance between the received signal strength and an optimal received power rank is called the Golden Receiver Power Rank (GRPR) Thus the Received Signal Strength Indicator (RSSI) value of the Bluetooth protocol is used to get a correlation to the distance between sender and receiver in a network. Although there is no specific support for positioning service in Bluetooth technology yet the predominant technology used are signal strength measurement, link quality and bit error rate which rely on the services of the Host Controller Interface. Bluetooth has become an emerging technology for determining indoor and sometimes outdoor position of a communicating device. With the range of personal devices using Bluetooth, the possibility arises to locate and track the movements of objects. Problem with GSM is inaccuracy in location determination due to its limited coverage in densely populated area. The times at which signal arrive together with the angle of arrival from at least three stations allow location detection through triangulation. The GSM equipment communicates with the GSM network through relay stations. One more method for tracking objects is based on GSM communication technology. Require extensive configuration and software installations. While RFID tags are very cheap, small and suitable for tracking objects, the sensors are considerably more expensive and RFID tracking uses ultra-low power and there is no need for line-of-sight operation. Active RFID is popularly used in warehouses and locations like airports where a larger range is needed. Passive RFID tracking is very common in shops and libraries where tags are attached to products and are checked as they leave the shop by passing through receivers near the doors. RFID uses either passive or active tags to track objects. Another technique for implementing tracking system is by using Radio Frequency Identification (RFID). GPS, however, supports outdoor navigation since it requires lines- of-sight operation with at least three satellites. These systems display the location of a vehicle within a specified time frame. Vehicles and other objects are usually tracked using trackers whose implementation is based on Global Positioning System (GPS). Loss of concentration usually occurs when fatigue sets. These systems require human operator to monitor the CCTV images at a central location. The predominant mechanisms for tracking humans involve the use of video surveillance systems. There are many advantages of locating and tracking a person or object, in a variety of contexts such as following the movements of a child around an amusement park, locating colleagues in an office or tracking the movement of luggage through an airport. Tracking systems, systems designed to monitor devices or persons, have become prevalent issues in modern technology. Algorithms are designed and implemented using python. This paper presents an alternative technique for tracking the movement of indoor objects based on Bluetooth communication technology and trilateration. These mechanisms usually require line of-sight operations, limited coverage and low-level programming language for accessing Bluetooth signal strength. Objects are usually tracked using trackers based on GPS, GSM, RFID and Bluetooth signal strength implementation. Parameshachari B D#2ġStudents, BE, Department of TCE, GSSSIETW, Mysuru, Karnataka, India,ĢProfessor & Head, department, Department of TCE, GSSSIETW, Mysuru, Karnataka, IndiaĪbstractImplementations of tracking systems have become prevalent issues in modern technology due to its advantage of location detection of objects. Rajashree H S#1,Sahana B#1, Surabhi S#1, T N Apoorva#1, Dr.
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