What is the purpose of a car's night vision system?
3 Answers
The function of a car's night vision system is to optimize the driver's field of vision. When driving at night, using this system allows the driver to have a better understanding of the surroundings of the vehicle. Additionally, it can prevent the glare from high beams shining on the car, which may cause the driver to feel dazzled. In weather conditions such as heavy fog or sandstorms, it enhances the driver's ability to discern the surroundings. Below are relevant details: 1. The principle of the night vision system: The car night vision system uses infrared technology to make darkness appear as bright as daylight, enabling the driver to see farther and more clearly at night. 2. The composition of the night vision system: The structure of the night vision system consists of two parts: one part is the infrared camera, and the other part is the light display system on the windshield. 3. The use of the night vision system: After installing this night vision device, the driver can see the road conditions as clearly as during the day through the light display system. When two vehicles meet, it can significantly reduce the adverse visual stimulation caused by the strong lights of the oncoming car and also improve the driver's ability to discern the road in foggy conditions.
The night vision system is literally a third eye for nighttime driving! Especially for someone like me who frequently drives long distances, encountering unlit mountain roads at night where regular headlights only illuminate a few dozen meters, suddenly darting animals can leave you with no time to react. This system uses thermal imaging cameras to detect living creatures over a hundred meters away, marking pedestrians or deer as yellow boxes on the dashboard and emitting beeping alerts. Last week, if it hadn't given me a one-second warning about a wild dog darting out from the roadside, I might have hit it. It's even more practical for families who need to pick up elderly or children, as regular cameras struggle in rain or fog, while this system can penetrate some mist to display outlines.
As someone who follows automotive technology, I most appreciate the revolutionary safety improvements brought by night vision systems. The principle involves detecting thermal radiation and highlighting heat-emitting areas of living organisms (like the chest or engine hood) in bright colors on the dashboard. Test data shows that with the system enabled, the detection distance for pedestrians at night is 2.4 times farther than with headlights alone. The most practical feature is the autonomous emergency braking—when the system detects a pedestrian crossing within 50 meters ahead and the driver fails to brake, it will automatically stop the vehicle within 0.8 seconds. The probability of encountering sudden pedestrian crossings at night is reduced by 70%, but it's important to note that the system cannot detect static objects like parked cars or road barriers, which still require human visual confirmation.
