In current traffic safety management and various business scenarios, ANPR (Plate, automatic license plate recognition system) plays an extraordinary role. This system can use advanced image processing and pattern recognition technology to automatically identify the number information of the license plate from the monitoring screen, such as letters and numbers on the license plate.
It is relatively easy to operate and basically does not require excessive manual intervention. Think about it, if there are so many vehicles coming and going at some entrances and exits, and the traditional method of manual identification will definitely be too busy. ANPR can quickly and efficiently identify license plates.
The first module: the key components-
1. First of all, the image acquisition unit, which is usually composed of high-definition cameras. This camera needs to ensure the clarity of the shooting screen to ensure that the license plate and sufficient details can be captured clearly.
2. The second is the recognition unit, mainly the highly complex software algorithms inside. These algorithms will process the image acquisition unit sends the image to accurately extract license plate information in a complex and changing environment.
3. Then there is a communication unit, which can ensure that the relevant identified license plate information can be transmitted to other corresponding systems in a timely, safe and reliable manner! For example, the access control system management center!
Module 2: Characteristics of system application scenarios
Speaking of traffic control scenarios, automatic license plate recognition system is of great help to improve traffic control efficiency. For example, it can be installed in electronic police systems to capture violations and avoid points deductions. Car owners are helpless now; they are also placed in highway toll intersections! Realize fast passage without stopping to reduce waiting time; in terms of public security inspection and control, use ANPR system to instantly match database information to assist police officers in time to investigate and deal with suspected license plate-related illegal vehicles
In civil commerce, some community access controls only need to register the car owner information with the help of this entry and exit personnel. The license plate matches the same license plate and realizes sensorless traffic; large commercial parking lots also use intelligent billing mode to automatically deduct fees according to the entry and exit time according to the billing standards, saving time and effort to pay the fees to everyone
Module 3: Work performance display
In actual situations, the ANPR system is under ideal light and image quality conditions! The accuracy of license plates can basically reach 95-99%, which makes it very accurate. In actual operation, we are also thinking about improvements. On the one hand, if we want to improve the recognition accuracy, we still need to require the appropriate lighting conditions for the camera. It cannot be too strong and too dazzling, and the light cannot be completely dark! Then the installation position must be reasonable to ensure that the license plate can appear intact in the picture. Although most of the vehicles can be adapted to the speed of the car, and the average speed is around 100 mph per hour, the ultra-high speed is still a bit difficult to identify!
When users actually choose to use the automatic license plate recognition system, we still have some issues to pay attention to.
Answer some questions about ANPR!
Q: Will the system be inaccurate in bad weather such as heavy rain or heavy fog?
Answer: In fact, under severe weather conditions, although modern algorithms and camera characteristics have certain resistance, the accuracy rate of recognition of normal climate conditions is generally lower than that of normal climate conditions! But R&D personnel are constantly improving and improving to make their adaptability to the environment stronger.
Q: Is this system expensive? How much difference are there in different systems
Answer: The price difference between this automatic license plate recognition system is quite large; it looks different from tens of thousands to millions, and it mainly depends on the usage requirements and the relevant factors of the deployment site.
In short, ANPR occupies such an important position in various urban management and civil life today. It is a means to facilitate passage and reduce management labor costs and improve the overall passage efficiency! With the development of technology, I think it will be more intelligent and accurate in the future. I will definitely play a greater role and value in many scenarios. Lawu provides global procurement services for weak current intelligent products!
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