Installation and Configuration Manual
5
Installation
2.2.1 Refuge Island and Guard Booth
2.2.1.1 Selecting Refuge Island Locations
To select the location of refuge island, you need to consider the capture and recognition effect of
cameras first, because many factors will affect the camera recognition effect, such as the channel width
exceeding the camera monitoring capability, and inappropriate camera installation point. These are
physical factors. Problems such as whether the camera monitoring image covers the license plate or
whether the angle of the license plate meets the recognition conditions cannot be solved from the
technical level. Therefore, it is necessary to plan well before the camera is installed. The following are
important precautions before camera installation:
The camera should be placed in a location that meets the following conditions: A vehicle must be
able to make a complete turn into the passage of the parking lot; its front must face straight once
it is 4 meters away from the camera. The camera capture distance is 4–6 meters, and the best
capture distance is 4 meters away from the camera. In this solution, we take the capture line of 4
m away from the camera as the standard, and you can adjust the capture line as needed. There is
a turning process when the vehicle enters or exits the passage of the parking lot. During turning,
the license plate is at a certain angle with the camera, which causes the camera unable to face
straight the license plate or the angle is too large, which affects the recognition effect. Therefore,
the capture line of the camera should be configured at the place where the vehicle can make a
complete turn in to the passage, and the camera can face the license plate. After determining the
camera capture line, the camera can be installed 4 meters away from the capture line, as shown in
Figure 2-3.
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