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Geomagnetism is promising for indoor localization due to its pervasive presence, high signal stability and unnecessity of extra infrastructure support. It can be fused with a pedometer (step counter) to further improve accuracy. Traditional fusions based on particle filter, however, are computationally complex. Their accuracy is barely satisfactory for large open indoor spaces (such as airports or...
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...
The ambulatory monitoring of human movement can provide valuable information regarding the degree of functional ability and general level of activity of individuals. Since walking is a basic everyday movement, automatic step detection or step counting is very important in developing ambulatory monitoring systems. This paper is concerned with the development and the preliminary validation of a step...
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...
A pedometer is a popular wearable sensor used to enumerate walking steps taken per day and in this way determines the approximate distance traveled. In this study, we used blood pressure and walking step data, obtained from 48 patients in a home healthcare system, to investigate the effectiveness of the pedometer in a clinical setting. Changes in blood pressure and walking steps per day were compared...
This paper presents the theoretical aspects behind a handicap point system for pedometer challenges. The system attempts to address the problem of current approaches that report only the participants with the most steps in competitions. By introducing a handicap based calculation, the idea is to motivate all participants to exceed their average daily step count. It is proposed to add a participant's...
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...
People's lifestyle habits, such as physical activities and food choice, must change to prevent the incident rate of metabolic syndrome from increasing. However, changing a lifestyle habit requires continued effort. Our previous six-month trial with a networked health guidance system showed that people could continue their efforts if they had a health nurse's support and daily health and progress data...
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