The EnPlate ANPR system
EnPlate is an automatic number plate recognition (ANPR) system designed to recognize vehicle number plates from images captured by a camera installed at the front or rear of stationary or moving vehicles.
The system operates in two modes:
- Triggered mode: Input received from an external device.
- Free flow mode: Images captured by the camera are continuously processed to detect the presence of vehicles.
Once a vehicle is detected, the software locates the rectangle containing the number plate in the image. Using an advanced number plate recognition system, it extracts the alphanumeric string of the number plate from such rectangle.
The recognized string can be compared with one or more lists, such as white lists or black lists, and can be sent to any management system.
The EnPlate system is suitable for various operational contexts that require automatic number plate recognition, including access control in public and private areas like restricted traffic zones, parking lots, and goods vehicle stands.
The EnPlate license plate recognition system, including its camera, has been certified as Class A according to UNI 10772 since 2003. It has also been certified according to the latest edition of UNI 10772:2016.
The system is regularly updated and enhanced with new features to improve its performance, including:
- Increased reliability in recognition by combining rear and front plate recognition.
- Detection of new types of number plates, such as military, foreign country, and motorbike number plates. EnPlate is designed to accommodate license plate formats that differ from those typically entered in license plate recognition systems.
The EnPlate system comprises of one or more high-quality cameras with infrared illuminators and a processing unit.
The processing units analyze the camera images to identify the correct number plate and compare it with various lists, such as authorized and suspect lists.
The software of the processing unit consists of three modules: vehicle detection, number plate detection and vehicle classification.
The EnPlate system is highly adaptable to different installation requirements due to its flexible architecture. Processing can be performed in either centralized or distributed mode. If a data transmission infrastructure, whether wired or wireless, is available, a single computer can process data from all number plate reading points. In this scenario, the camera systems in the field must be connected to the computer via LAN, even if they are located kilometers away. The system's vehicle detection software module enables data transmission only when a vehicle passes, which allows the use of wireless network facilities. In cases where no network infrastructure is available, processing can be delocalized, reducing the amount of data to be transmitted to the control room. This enables the use of cellular networks and the Internet for transmitting transit images only. Data security is ensured through encrypted connections between all equipment. In cases where no network infrastructure is available, processing can be delocalized, reducing the amount of data to be transmitted to the control room. This enables the use of cellular networks and the Internet for transmitting transit images only. Data security is ensured through encrypted connections between all equipment.
The EnPlate 892 system consists of two main hardware components:
- Camera: The system utilizes a high-resolution camera with various resolution options. The camera is capable of capturing images at a frequency that enables vehicle detection even at high speeds. It is equipped with a specialized infrared illuminator designed specifically for license plate recognition.
- Processing System: The system operates on a dedicated processing apparatus where the license plate recognition software runs.
The EnPlate license plate recognition system has been certified as Class A according to UNI 10772 since 2003. It has also obtained certification for the last edition UNI 10772:2016.