Where is the parking license plate recognition system equipment installed?
First, the installation location:
As shown in the figure below, the thicker red line indicates the optical axis of the camera lens. The position pointed by the optical axis is the center of the image in the video image. The horizontal angle (angle a) is the camera's optical axis and road direction (vehicle travel) The angle of the direction, the angle of depression (angle b) is the angle between the camera's optical axis and the horizontal plane (ground).
Recommended installation parameters:
Horizontal angle (angle a): less than 40 degrees;
Depression angle (angle b): less than 40 degrees;
Recognition distance: 200~600 cm;
Column height (camera height): 60~180 cm, which needs to be determined by combining the recognition distance;
Second, the relative position description
From the schematic position in the top view, the gate body needs to leave a certain space for the field of view of the integrated machine, and the column installation ensures that the integrated machine can be close to the lane, thereby minimizing the angle between the optical axis of the integrated machine and the traveling direction of the vehicle.
As shown in the figure below, the thicker red line indicates the optical axis of the camera lens. The position pointed by the optical axis is the center of the image in the video image. The horizontal angle (angle a) is the camera's optical axis and road direction (vehicle travel) The angle of the direction, the angle of depression (angle b) is the angle between the camera's optical axis and the horizontal plane (ground).
Recommended installation parameters:
Horizontal angle (angle a): less than 40 degrees;
Depression angle (angle b): less than 40 degrees;
Recognition distance: 200~600 cm;
Column height (camera height): 60~180 cm, which needs to be determined by combining the recognition distance;
Second, the relative position description
From the schematic position in the top view, the gate body needs to leave a certain space for the field of view of the integrated machine, and the column installation ensures that the integrated machine can be close to the lane, thereby minimizing the angle between the optical axis of the integrated machine and the traveling direction of the vehicle.
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