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Anonymous users2024-01-23Arrange the camera at a certain distance on the wall around the circle, the lens direction is facing the center of the circle, and the separation distance is determined according to the angle of view of the camera lens, so that there is basically no dead angle in the central area.
If you want to have no dead ends, you need to place several more cameras in the center of the restaurant, and the cameras are aimed at the dead spots that the cameras on the surrounding walls cannot capture.
The central position can also use a camera with a PTZ that can be rotated, so one is enough, the disadvantage is that the price of a camera with PTZ is much higher than that of a fixed type, and it cannot achieve real-time monitoring of the whole area.
The specific design is based on the needs.
Setting up a camera in a large indoor space is mainly to consider how to reflect the openness of the space. There are several methods, one is to appropriately raise the height of the target point, that is, let people look up, so as to reduce the proportion of the ground, so that the space above can see more, and the whole space will appear more open. Another method is to raise the position of the camera and the position of the target point, which is equivalent to a person standing in mid-air and looking at the whole space, so that the space to see will also be open. >>>More
An example of fill-in-the-blank quantifiers is as follows: >>>More
Now this business is not very easy to do, now everyone has a camera (mobile phone), the quality is a little worse but not a problem, if he likes photos he has his own you say?
Will it be "Someone Under the Bed", that is a ghost movie.
Don't be suspicious, you didn't decorate the house yourself? You just remove the exhaust fan and take a look, so as not to be at ease all the time.