| 摘要 |
A system in which a sensor unit in the casing of a lantern detects an impact and generates a wireless alert signal and is powered from the battery used to power the light source of the lantern. The sensor unit can be mounted onto the terminals of a battery and held within the cavity of the lantern housing used to house the battery. In this way the sensor unit can be incorporated with the lantern without any modification to the design of the lantern. |
