The camera shall have stable and firm support: the camera shall be set at a position near the monitoring target area that is not vulnerable to external damage, 

and the setting position shall not affect the operation of field equipment and normal activities of personnel, and ensure that the field of vision of the camera meets the monitoring requirements. 

The setting height should not be less than 2.5m from the ground indoors and 3.5m from the ground outdoors. 

If the vertical pole is used for outdoor installation, the strength and stability of the vertical pole shall meet the use requirements of the camera.

The camera in the elevator car shall be set at the top left or right corner of the door side of the elevator car, and can effectively monitor the physical characteristics of the passengers.