2.2.4 Movement Pattern Recognition through Smartphone’s Accelerometer
In addition, presently there experienced an investigation suggest that sensor allowed smartphone’s have grown to be the popular system with regard to scientists
because of their capability to gather as well as procedure big amounts associated with information, therefore making brand new possibilities with regard to revolutionary
android application, through Armir Bujari et.al. 2012 [9]. This may be the primary inspiration with this application which experienced created. In the following
paragraphs, additionally they talk about concerning the motion design acknowledgement within daily depending on city road conduct. Like an example, these
people limit from realizing a scenario whenever a pedestrian cease, traversing the road dominated with a visitors gentle. They make use of these types of information in the
accelerometer sensor in the smartphone gadget to accomplish their own research.
2.2.5 Smartphone Indoor Localization with Accelerometer and Gyroscope
Other that physical activity recognition and fall detection system, accelerometer and gyroscope sensor data also can use to develop an indoor localization
system. Hui-Huang Hsu et.al, 2014 develop a smartphone indoor positioning application by using accelerometer and gyroscope sensor [10]. They build a pedestrian
dead reckoning method in their application. The calibration points for the localized application are checked off both on the ground floor and on the map of the application.
The user first need to get a calibration mark and then stand on it and then face to the correct direction. After that the user need to place the Android smartphone on the top
of the calibration point. When the user start to strike, the android icon on the application will also run on the map following with the real time estimates of the
orientation change for each step from accelerometer and gyroscope data respectively. The preliminary outcomes for their application in walking distance and orientation
estimation show high accuracy solutions. This shows that another perspective of the vantages of the motion sensor data on our smartphone device.
2.2.6 Initial Test on the Use of GPS and Sensor Data of Modern Smartphones for Vehicle Tracking in Dense High Rise Environments
Theres an additional research which is designed to explore the actual mixing of the actual built-in GPS NAVIGATION as well as sensor information upon mobile
phones with regard to localization within thick city conditions exactly where frequently satellite television indicators tend to be blocked through high structures or
even bigger buildings, leading to the actual in adequate amount in the event that GNSS dimension information with regard to the prosperous placement dedication [11]. The
actual document additionally talks about touching the features from the information results from the electronic compass as well as accelerometer with regards to the actual
alignment and also the telephone actions offered with this text file. Side by side, theyll contain the actual GPS NAVIGATION, an electronic compass as well as
accelerometer for his or her automobile monitoring programs. This particular document exhibits an additional way of while using movement sensor which within
smartphone to build up a good Google android application.
Figure 2.3: The gravity effect on the accelerometer output when the y-axis is at different elevation angles.
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