Vulnerabilities in Residential License Plate Recognition Systems?
2 Answers
Vulnerabilities in residential license plate recognition systems are as follows: 1. Slow driving: All experienced drivers know to drive slowly when approaching an intelligent barrier gate. The so-called slow driving means driving slightly slower than normal speed, because current intelligent license plate recognition systems cannot capture license plates of high-speed vehicles like "heavenly eyes" can. 2. Induction loop: Those familiar with products in this industry know that a license plate recognition system consists of a recognition system, camera, intelligent barrier gate, and induction loop. The camera only begins detecting license plates when vehicles reach the position of the induction loop. Therefore, experienced drivers know where the induction loop is located and will slow down when reaching it. 3. Checking license plates: Experienced drivers know that license plates are the "ID cards" of vehicles, and the recognition system can only detect this "ID card." If the license plate cannot be detected, the intelligent barrier gate will not open. The most common occurrences are dirty, damaged, or obscured license plates. Checking license plates is something easily overlooked by vehicle owners. Only when waiting for a long time in front of the residential gate camera without the barrier gate opening will they get out to check.
Last week while doing maintenance in a friend's residential complex, I came across a classic case. The biggest weakness of license plate recognition systems lies in hardware aging - the recognition cameras are constantly exposed outdoors, and when dust and condensation accumulate on the lenses, the recognition rate plummets, with missed identifications during rain reaching up to 30%. Some property managers cut costs by purchasing low-end equipment, where insufficient nighttime fill light brightness directly results in blurry captures. More troubling is that the system backend has logical vulnerabilities - our tests showed that simply playing a license plate video on a phone could trick the recognition barrier. I recommend homeowners' associations regularly require property management to perform three basic maintenance tasks: quarterly cleaning of camera protective covers, upgrading anti-counterfeiting recognition algorithms, and checking induction loop sensitivity. After all, last year a neighboring complex had disputes over people exploiting system delay vulnerabilities to park for free.
