Traffic census data are essential for investigating traffic volumes and vehicle movements, and count mechanization is currently the most efficient way to obtain and utilize advanced traffic cens ... Read More

In recent years, street parking in prohibited areas has become a social problem, especially in urban and tourist areas. In addition, because street parking can cause traffic congestion and accide ... Read More

In this study, we develop a method that estimates the type of a sidewalk surface on which a user walks using three-axis acceleration sensor data measured by a user’s smartphone’s acceleromete ... Read More

Wireless local area network (WLAN) technologies are utilized for sensing, which rely on changes in wireless signals in a sensing environment. A number of studies have dealt with channel state inf ... Read More

In this paper, we propose a low-cost, non-invasive home activity recognition method using low- resolution power consumption data. Notably, we tackle the following two challenges. Firstly, we use ... Read More

When evacuating a building after a disaster such as an earthquake, it would be useful to detect the trajectory of an evacuation path by pedestrian dead reckoning (PDR) and record it in a person� ... Read More

Wearable devices with motion sensors, such as accelerometers and gyroscopes, are expected to become popular. There is a lot of research on recognizing gestures using data obtained from motion sen ... Read More

In order to enable environmental sensing in any place, wireless sensor networks that collects environmental sensing data through wireless multi hop communication are coming into practical use. Si ... Read More

In software system testing using Bluetooth Low Energy (BLE), it is necessary to evaluate the system, including the wireless communication. However, it is difficult to build a test environment for ... Read More