A warning device includes: a sensor which is attachable to a supporting member and measures a distance, the supporting member being fixedly installed; and a notifier which performs notification using predetermined output. The sensor measures at least one of sensor-object distances and a moving object distance, the sensor-object distances being distances between the sensor and each of at least two moving objects which are approaching to each other, the moving object distance being a distance between the at least two moving objects which are approaching to each other, and the notifier performs the notification by varying a manner of the predetermined output according to the at least one of the sensor object distances and the moving object distance which are measured by the sensor.
WARNING DEVICE AND STREET LIGHT SYSTEM
2018-03-29
Patent
Electronic Resource
English