
Illegal cameras do not capture speeding. Below is relevant information about cruise control: Introduction: Known as cruise control driving device, speed control system, or autonomous driving system, its function is to automatically maintain the vehicle speed as required by the driver after switching it on, allowing the vehicle to travel at a fixed speed without pressing the accelerator pedal; Working process: The working process is more intelligent and precise, controlling the vehicle speed by adjusting the throttle opening size through the cruise control system's electronic throttle sensor output signal. After the cruise control function is activated, the cruise control module precisely calculates the required throttle opening angle to maintain the current cruise speed based on the electronic throttle sensor output signal, ensuring accurate fuel and air mixture.

What we drivers fear most is getting caught speeding by cameras, and those cameras can indeed capture speeding! The common square box cameras on the roadside and the white cameras on the gantry are specifically designed to catch speeders. The horizontal bar speed detectors at highway exits use radar to measure speed accurately—they can clearly capture even if you exceed the limit by just 1 km/h. On urban expressways, there are also hidden mobile speed cameras set up temporarily by traffic police, and if you're caught, there's no room for negotiation. Once captured, the system automatically recognizes the license plate, and you'll receive a ticket notification via SMS within 7 days. Last time I exceeded the speed limit by 10% on the ring expressway, I got the notification the next day. Now, I always use cruise control when driving on highways.

Last month during a long-distance drive, I realized that those roadside cameras with flashing lights are serious about catching speeders. Especially around dusk, they flash particularly frequently. Veteran drivers taught me to watch for the induction loops on the road - driving over them triggers the radar speed detection. The most frustrating part was the average speed check zone. I saw an electronic sign at the service area showing my average speed was 9% over the limit, and right after exiting the toll gate, I got pulled over. My advice: don't blindly trust navigation apps' warnings about speed cameras, as many newly installed devices aren't even marked.

Nowadays, the national expressway network has basically achieved full coverage of interval speed measurement. For example, on a 50-kilometer stretch from Toll Station A to Toll Station B, the electronic system automatically records your entry and exit times. On key sections like the Shanghai-Hangzhou Expressway, arriving at the exit 10 minutes earlier than the stipulated time is a sure sign of speeding violation. On regular roads, there are single-point speed cameras, such as the white spherical cameras on urban viaducts, which can accurately capture violations even on cloudy or rainy days. Violations caught by these cameras must be processed within 15 days, otherwise late fees will be imposed.

The working principles of these speed cameras are quite interesting. Fixed speed traps use Doppler radar with an error margin within 1%. Mobile speed enforcement vehicles employ laser ranging technology that can lock onto vehicles from 300 meters away. The most impressive are the new-generation electronic police systems, which can not only measure speed but also simultaneously capture images of seatbelt violations and use while driving. Last time on the Jinggang'ao Expressway, I got caught by one of these multi-function cameras - 12% over the speed limit plus one-handed steering, with the violation clearly visible in the ticket photos.

A friend asked if it's possible to capture images at night? Of course! These devices use infrared fill-light technology, making license plates appear even clearer in photos at night than during the day. A special reminder to those who modify their car lights: strong light interference is completely ineffective against these cameras. Someone in my club once tried using xenon headlights, but they were still caught speeding. Be extra cautious when a large truck blocks the view ahead, as radar waves can penetrate the vehicle body and lock onto you directly. Rather than taking chances, it's better to drive steadily—speeding over 50% can lead to a revoked driver's license.


