| 摘要 |
The invention relates to a traffic cone perimeter breach alarm system. The system comprises at least one lantern 1 used as, or with, a road traffic cone, or marker. The lantern 1 includes a sensor unit 4 arranged to detect a collision or impact, and generate a wireless alert signal in response thereto. The sensor unit 4 is provided in the casing 8 of the lantern 1, and is powered from the battery 2 used to power the light source 6 of the lantern 1. The sensor unit 4 is thus operable whilst the light source 6 is operating. The sensor unit 4 may be mounted onto the terminals 2B of the battery 2, and held within the cavity 8A of the lantern housing 8 used to house the battery 2. In this way the sensor unit 4 can be incorporated within the lantern 1 without any modification to the design of the lantern. |
