Provision ISR IP Series User Manual page 55

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6 Appendix I : Analytics Configuration Requirements
6.1 General
Provision-ISR's LPR analytics requires a proper installation for optimal license
plate reading. Installing the camera without following the installation thumb rules,
might have dramatic results on the detection / recognition results.
6.2 LPR (License Place Recognition) Installation and Settings:
In general, license plate recognition is used for 2 main purposes:
1) General Road Monitoring.
2) Parking Monitoring and Management
Each usage required different type of installation
6.2.1 Choosing the right lens:
Every region has it's own plates, The plate's width is not always the same,
Therefore it is important to choose a lens that will fit to your plate's size.
Use the table below to know where to install the camera distance-wise. Select
the proper lens according to the table below:
License plate Width
(cm)
30.48
30.48
52 (Standard EU Size)
52 (Standard EU Size)
44
44
6.2.2 General Pre-installation requirements:
Please follow the requirements below to get the best analytics results:
1) Check the visibility, from the camera point of view.
2) Select the best place which covers the area you wish to monitor.
3) Connect the camera to a stable base. Shaking and vibrations reduces accuracy and
might generate false alarms.
Vehicle Size should be ≤50% of the Scene
4)
Vehicle Height should be ≥10% of the Scene
5)
6) License plate camera tilt angle not more than -5° ~ 5°
7) No obstruction between the camera and license plate
IP CAMERA USER MANUAL
Lens Recognition
Distance (cm)
7-22mm
2.8-12mm
7-22mm
2.812mm
7-22mm
2.8-12mm
Max.
Recognition
Distance (cm)
1576
840
2688
1432
2274
1212
Min.
197
105
336
179
284
152