The vibration environment is a common man-made artificial surrounding with which humans have a limited tolerance to cope due to their body dynamics. This research studied the dynamic characteristics of a seated human body/seat system in a vibration environment. The main result is a multi degrees of freedom lumped parameter model that synthesizes two basic dynamics: (i) global human dynamics, th...

OBJECTIVE Analyses of crash injury data have shown that injury risk increases when children transition from belt-positioning boosters to the vehicle seat belt alone. The objective of this study is to investigate how to improve the restraint environment for these children. METHODS A parametric analysis was conducted to investigate the effects of body size, seat belt anchorage locations, and re...

INTRODUCTION Currently, there is little in the literature regarding the ability of rear seatbacks to act as a protective barrier from cargo in frontal crashes. However, it has been shown that unrestrained rear passengers pose a danger to front seat occupants. The association of rear seatback failures and intrusions with mortality and serious injury were examined. METHODS The Seattle CIREN dat...

In terms of the eVectiveness at the total population level, seat belts represent the front line of passive safety against death and serious injuries from passenger car crashes. They reduce by about 50% the risk of death and serious injury for car occupants; this knowledge, however, is not promptly translated into action and the frequency of seat belt use in the European Union member states vari...

This study sought to determine whether fitting a more aggressive seat belt reminder system to new vehicles would be cost-beneficial for Australia. While seat belt wearing rates have been observed around 95% in the front seat, non-wearing rates in casualty crashes are as high as 33% among persons killed and 19% among seriously injured occupants. Benefits were computed for three device options (s...

Air travel is becoming increasingly more accessible to people both through the availability of low cost flights. Health problems may arise due to anxiety and unfamiliarity with airport departure procedures prior to flying, whilst during the air travel, problems may arise as a result of the food served on board, differences in the environmental conditions inside the cabin, the risk of crossinfec...

When an airbag deploys on a rear-facing infant seat, it can injure or kill the infant. When an airbag deploys on an empty seat, the airbag and the money to replace it are wasted. We have shown that video images can be used to determine whether or not to deploy the passenger-side airbag in a crash. Images of the passenger seat, taken from a video camera mounted inside the vehicle, can be used to...

In this paper we propose a new solution which utilizing the Gyro Sensor and Tilt Sensor in real-time controlling the balance of wheelchair seat. The existing wheelchair systems have the risk of falling when users go uphill because of the uneven weight allocation. But when applying our new method, the wheelchair seat can automatically adjust to maintain the balance therefore provides a safer and...

INTRODUCTION Trauma is a major cause of death and disability worldwide. A quarter of all fatalities due to injury occur due to road traffic crashes with 90% of the fatalities occurring in low- and medium-income countries. Poor compliance with the use of seat belts is a problem in many developing countries. The aim of this study was to evaluate the level of seatbelt compliance in motor vehicles ...

In this research, LabVIEW 8.5 is taken as the software platform. Sensors, data acquisition cards are combined as its hardware. A detecting and analyzing system for the vibration comfort of car seats is developed, in which the functions as to the collecting and processing of vibrating signals, the access of data and the display of images are achieved. The system can also analyze the dynamic char...