DEVICE AND METHOD FOR MEASURING THE SPEED OF AN OBJECT MOVING IN A RESTRICTED ENVIRONMENT

摘要

The invention relates to a device for measuring the speed of at least one object moving in a restricted environment (3). The device comprises: - video capturing means (1) whose field of capture covers the said environment (3), - calibration means (2) making the granularity of the captured images correspond with the real distance in the said environment (3), - means of spotting a distinctive sign of the moving object. According to the invention, the device comprises means of identifying the position in the said environment (3) of the said distinctive sign on the said captured video at a first time and at a second time, the said calibration means (2) being able to convert the said movement of the said distinctive sign on the said video between the first time and the second time into a distance travelled (d1) in the said environment (3), the said device comprises means of calculating the speed of the said object over the said distance travelled between the first time and the second time.