What is the principle behind the 3-minute illegal parking capture by electronic surveillance?
2 Answers
The principle behind the 3-minute illegal parking capture by electronic surveillance is: When a vehicle enters a no-parking zone, the electronic surveillance automatically takes a photo. If the vehicle leaves within 3 minutes, the photo is automatically deleted; if the vehicle remains parked for more than 3 minutes, the electronic surveillance captures the photo and uploads it along with the previous photo to the relevant traffic authorities for violation assessment and subsequent penalties. Electronic surveillance, also known as electronic police, is the colloquial term for the 'Intelligent Traffic Violation Monitoring and Management System'. It was successfully developed in Shenzhen in 1997 and has been gradually promoted for use since then. Electronic surveillance utilizes various technologies such as vehicle detection, photoelectric imaging, automatic control, network communication, and computer technology to monitor violations such as running red lights, driving in the wrong direction, speeding, crossing lines, and illegal parking. It operates around the clock to capture images and information of traffic violations, which are then processed after the fact based on the violation data.
I remember that time discussing with friends how electronic eyes work. The principle mainly involves cameras continuously monitoring traffic areas. When a vehicle stops in a no-parking zone, the system analyzes the vehicle's motion status through video streams—the software compares changes between adjacent frames to time the duration. If the car remains stationary for more than three minutes, it automatically captures photos of the license plate and location, while generating a timestamp as evidence. The key technology is the motion detection algorithm, which prevents false positives like brief passenger drop-offs. Materials I’ve read show that some cities also integrate induction loops or radar to improve accuracy, but this requires extensive data processing. To keep roads flowing, this design encourages drivers to move quickly and avoid congestion. If you exceed the parking time limit, a fine is inevitable, so it's advisable to plan parking spots in advance.
