In ITS research field, recently a lot of efforts have been made to develop driving safety support systems (DSSS) for car drivers such as warning to drivers “danger” in potential blind spots at intersections. In this paper, we propose a localization method to estimate the movement trajectories (position, speed and direction) of pedestrians near intersections by using some roadside anchors. In our method, we assume that each pedestrian is equipped with a small device which periodically emits a radio beacon signal and each roadside anchor can receive the signal and measure its received signal strength (RSS). Our method estimates the pedestrian position from RSS at each anchor based on the Maximum Likelihood Estimation (MLE) method. Moreover, to obtain an accurate pedestrian trajectory, our method applies the Bayes’ theorem to a series of estimated positions and reduces estimation errors caused by uncertainty from radio interference and other factors. Through computer simulations with RapLab, we confirmed that our method estimates pedestrian positions within 2m error.
Making uncertainties manageable - Risk-based PlanningRalf Heim
This Presentation had been held at the Finance Directors Strategy Forum 2013 in Interlaken.
It illustrates how scenario-based thinking can be combined with simulations to making uncertainties manageable. The objective of this approach ist, to leave the path of best guesses by putting complexity into the Database without confronting the top management.
Copywriter Liz Painter explains what you can do to improve your website and how that can lead to winning more clients. She talks through some of the most common mistakes business owners make on their websites and explain why it’s vitally important to create web copy that’s tailored to your target market.
A Physical Strength Measurement and Analysis System for Elderly People Using ...Kawai (Sun) Akira (Weihua)
The fiscal burden of increasing social security ex- penses for the elderly is a major issue in Japan. The elderly lose physical fitness as they age. In particular, degradation in walking ability leads to falling accidents which pose a risk of serious wounds such as fractures that may resign one to a life in bed. In this study, we propose a system that is capable of measuring and analyzing an elderly person’s walking ability. The proposed system, using Kinect motion sensor and written in the programming language Scratch, can measure an elderly person’s gait accurately and be operated simply without specialist knowledge. Through real experiments with 16 subjects, some potential problems in walking were easily found by analyzing the measured data.
2009-03-15A Data Gathering and Sharing Proposal for Disaster Relief based on DTNKawai (Sun) Akira (Weihua)
The information gathering and sharing are difficult in a disaster area where the communication infrastructures are destroyed due to the large-scale disaster. As a result, the rescue operation will be interfered. In this paper, we propose an efficient method for gathering disaster related information to a server at the headquarters in a disaster area, taking into account the mobility of rescue parties based on DTN (Delay tolerant Network).
Making uncertainties manageable - Risk-based PlanningRalf Heim
This Presentation had been held at the Finance Directors Strategy Forum 2013 in Interlaken.
It illustrates how scenario-based thinking can be combined with simulations to making uncertainties manageable. The objective of this approach ist, to leave the path of best guesses by putting complexity into the Database without confronting the top management.
Copywriter Liz Painter explains what you can do to improve your website and how that can lead to winning more clients. She talks through some of the most common mistakes business owners make on their websites and explain why it’s vitally important to create web copy that’s tailored to your target market.
A Physical Strength Measurement and Analysis System for Elderly People Using ...Kawai (Sun) Akira (Weihua)
The fiscal burden of increasing social security ex- penses for the elderly is a major issue in Japan. The elderly lose physical fitness as they age. In particular, degradation in walking ability leads to falling accidents which pose a risk of serious wounds such as fractures that may resign one to a life in bed. In this study, we propose a system that is capable of measuring and analyzing an elderly person’s walking ability. The proposed system, using Kinect motion sensor and written in the programming language Scratch, can measure an elderly person’s gait accurately and be operated simply without specialist knowledge. Through real experiments with 16 subjects, some potential problems in walking were easily found by analyzing the measured data.
2009-03-15A Data Gathering and Sharing Proposal for Disaster Relief based on DTNKawai (Sun) Akira (Weihua)
The information gathering and sharing are difficult in a disaster area where the communication infrastructures are destroyed due to the large-scale disaster. As a result, the rescue operation will be interfered. In this paper, we propose an efficient method for gathering disaster related information to a server at the headquarters in a disaster area, taking into account the mobility of rescue parties based on DTN (Delay tolerant Network).
2009-10-27Range-Based Localization for Estimating Pedestrian Trajectory in Intersection ith Roadside Anchors
1. 30, Oct, 2009 1 Range-Based Localization for Estimating Pedestrian Trajectory in Intersection with Roadside Anchors Weihua Sun* Hirozumi Yamaguchi** Keiichi Yasumoto** Minoru Ito* *Nara institute of Science and Techonology **Osaka University
2. 30, Oct, 2009 2 Position, Velocity, Direction Position, Velocity, Direction ◆ Overview 事故防止を目的とした歩行者・二輪車の移動軌跡推定法の提案 歩行者・二輪車を発見し、位置・移動軌跡を特定 ・複数のアンカーによりターゲットの移動軌跡を推定 ターゲット:歩行者・二輪車。ビーコンを連続的に発信するデバイスを所持 アンカー:停止中の車両。ターゲットから送られるビーコンの電波強度を測定することでその軌跡を推定