| 摘要 |
The invention relates to a signal for identifying traffic lights for pedestrians, using an electronic urban guidance device with computer vision, for blind or visually impaired people. The signal is cylindrical o prismatic, has marks that contain encoded information such as the identification of the traffic light, and information characterising the traffic light and the crossing. The signal can be recognised in 360° and there are versions for a better viewing angle. The main signal for identifying the traffic light can have secondary identification signals. In adverse viewing conditions caused by the light or the weather, the signal can be reflective, fluorescent, phosphorescent or can light up in visible, infrared o ultraviolet ranges of the electromagnetic spectrum. Said identification signal can be used to identify other types of urban elements. |
