Solo vision gates control: Simulation and testing

The reliability of a safety sensor is strongly dependent on the range the sensor is able to cover. Safety devices for electric automatic gates, mainly photodetectors, with their reduced sensing capabilities, can not provide the complete avoidance of injuries so that to guarantee protection for people crossing the danger area additional devices must be introduced. In this paper we evaluate as safety sensor a solo vision system fitting sliding and swing gates, the most widespread gate sorts for residential, commercial and industrial automations. Two cameras are placed at the opposite ends of the gate doorway looking at the same area to be monitored. The evaluation is carried out on both virtual and real image sequences in order to verify the practical suitability of the system after the theoretical trials exploitation.