| 摘要 |
<p>A self-propelled security system on an adjacent to a fence track, equipped with at least one imaging sensor and wherein the rail track on which the system's movable payload is propelled and the movable payload are both exposed to the fence side, and an anchoring means for anchoring, from time to time, the movable payload, and replacing the payload's battery with a new one within the anchoring means.</p> |
