| 摘要 |
The system described here is a shipping container security system which includes an RF data communications device; and an RF device mounted on an interior surface of a door of the shipping container and configured to form a short-range communications link with the radio communication component inside the shipping container via the antenna mounted on the exterior of the shipping container when the RF device and the radio communication component are within radio communications range. The RF device is mounted on the interior surface of the door such that, the RF device and the radio communication component are within radio communications range when the door is closed, and the RF device and the radio communication component are outside of radio communications range when the door is opened, whereby the opening and closing of the door of the shipping container is determinable.
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