An on-line weight traceability measuring system of vehicle based on optical imaging technologies

In modern intelligent scenarios, such as highway and ship, it is the most crucial to on-line measure the weight of vehicle by a fast and efficient way. Considering the varying body sizes of vehicles, ranging from a few meters to ten meters, it is needed to establish the relationships between the vehicle weight and the different shapes of vehicle wheel. In this paper, an on-line weight traceability measuring system of vehicle was developed by based on image sensing fusion technologies. We design some datum points to determine the geometric relationships between four optical sensors too, which located in different orientations. Finally, a series of experiments on conventional vehicle were carried out to demonstrate the weight measurements by considered of practical applications. The influence factors of weight measurement errors were also been discussed. Those results have been proven to be amenable for practical purposes through many tests so that it might be applicable to achieve intelligent weight measurements in highway toll station. Key words: weight; traceability; vehicle; optical imaging.