In the past few years, the technological advancements all across the globe have skyrocketed. Almost every day, new technologies are hitting the market and making our lives simpler as well as automated at the same time. If we just consider the period of the last decade, we can see how these technologies have changed the way we live. Some of these ground-breaking technologies are ANPR and RFID technology. They have completely changed the pace of many industries.
Automatic Number Plate Recognition (ANPR) is a system that is capable of reading the number plates of vehicles by making use of image capture at a high speed and without any intervention of humans. It detects the characters from the captured image of the vehicle number plate and verifies the character sequences. It is capable of character recognition that converts image to text. This technology is also known as Car Plate Recognition (CPR), License Plate Recognition (LPR), Automatic Vehicle Identification (AVI) and Automatic License Plate Recognition (ALPR) as well.
It is a technology which is used to find a vehicle license/number plate and transfer the information to the next stage for computer processing where it can be interpreted, stored and used for several purposes. This technology is being used by many police forces to track criminal behavior and as a method of detecting speeding vehicles at some places as well. It has facilitated electronic toll collection at roads where people pay for every visit and also in monitoring the traffic. The ANPR is being used in the following ways:
- Car park management
- Journey time analysis
- Bus Lane Enforcement
- Traffic Management
- Intelligent transport systems
- Retail park security
RFID or the Radio Frequency Identification technology refers to a technology where data is encoded digitally in form of RFID tags and a reader is used to detect this data through radio waves. This data is then used for further functions with minimal human intervention. When the RFID tag comes in contact with the reader, it transmits radio signals that are later converted into useful data by the reader.
Some of the industries where RFID technology is being used:
- Car parking management
- Asset Tracking
- Inventory Management
- Supply Chain Management
- ID Badging
- Controlling the access at areas that are restricted
- Counterfeit Prevention
For more info on RFID technology visit: What is RFID and how it works?
ANPR Technology vs. RFID Technology
Now that we have established the base understanding of what ANPR and RFID technology is, let’s compare them side by side and analyze their pros and cons. This will help us establish which technology is better for car parking management.
|1||Equipment||Uses infrared cameras based on Optical Character Recognition(OCR)||Uses RFID tags and a reader|
|2||Applicability||Vehicles have License plate by default||A dedicated tag is to be placed on the vehicle|
|3||Hindrances||Broken license plate or covered with dirt, letters too tightly placed||Very less chances of the RFID tag getting damaged|
|4||Environmental Factors||Camera may not function properly in times of fog, sun or vehicle glare; Camera covered with dirt||Can function properly in even fog; Dirt doesn’t affect the reader|
|5||Accuracy for Indian Vehicles||70-85% approx.||99.7%|
|6||Management||Multiple cameras for multiple lanes||One reader can manage two lanes|
After closely examining the pros and cons of both the RFID and ANPR technology, it is right to establish that RFID proves to be more efficient and dependable for parking and tolls whereas ANPR can be used to enhance the security.