| 摘要 |
Based on the idea of equipping the intermediate chamber with closed circuit television, the improvements consist in setting up a camera 6 inside one of the uprights 4 of the outer door 1 for access to the intermediate chamber, the objective (lens) of which operates towards the outside of said intermediate chamber via a small hole in said upright 4, a small TV monitor 7 being set up close to it, which, like the camera 6, is located close to the control panel 3 in which the push-button for opening the outer door 1 is located, such that anyone who approaches the intermediate chamber and tries to open it unavoidably sees themselves displayed on said monitor 7, which lets them know that they are being filmed before they start to access the premises, with the resulting dissuasive effect. Said TV camera 6, together with the conventional camera inside the intermediate chamber, supply the images in parallel to another monitor located at the control console controlling the intermediate chamber, so that the employee responsible for security who is monitoring the intermediate chamber constantly receives images thereof at his work station. <IMAGE>
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