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Currently available pedometer applications on smartphones use either accelerometer or gyroscope sensors to calculate the number of steps walked. The main challenge with such individual sensor based approaches is that the accuracy can be impaired due to overlap in patterns when the phone is held in different modes, namely, hand (with and without swinging) and shirt pocket or pant pocket. This paper...
Find a car in a large parking lot is a challenge in our daily life. In this paper, a novel car-searching approach based on smartphone for a large parking lot is presented. In the new approach, some QR codes are set up in each area which can identify the parking spots. In addition, shortest path algorithm is used to plan the optimal car-searching path. Considering that some parkers with poor sense...
Google's Android has become the leading platform in smart phone market. Android has also integrated various sensors including gyroscope, orientation and accelerometer, so it is quite suitable to design mobile sensor applications.Pedometer is a common auxiliary device used formaintaining health and fitness. In this paper, an intelligent pedometer is developed using Android. The user's walking motion...
This paper presents an Android platform's pedometer application design which uses SOLite database to provide the historical data query function and bases on the acceleration sensor and the orientation sensor. This paper first introduces the background of the application and the principle of Android platform pedometer. In addition, it also analyzes and compares the different design between the single...
This paper presents an extension to an indoor positioning system leveraging the camera which is built into current mobile phones to detect steps. Current indoor positioning systems on mobile phones based on pedestrian dead reckoning (PDR) often rely on step length and step frequency estimation. Usually the accelerometer is used to determine these values. Depending on the attitude of the device or...
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