| 摘要 |
A secure vehicle parking space is provided with an adjustable barrier comprising a post (10) that is located on the floor of the car space at the entry end. The post is moveable from a prostrate position to an erect position and then is moveable longitudinally of the car space toward the vehicle. A sensor (9) in the post senses the distance of the post from the vehicle to locate the post a predetermined distance from the vehicle. The advantage is that a vehicle of any length can be securely restrained using a single erect post. The system is adapted for use with coin operated or other secure locking mechanisms.
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