What is the Blind Spot Monitoring System in Cars?

Features like blind spot monitoring systems, lane-keeping assistance, side view cameras, and 360-degree panoramic cameras serve specific purposes. During vehicle operation, the design of the car body naturally creates blind spots for the driver, making it challenging to have a complete visual of surroundings, especially while observing exterior conditions, changing lanes, or navigating turns. These smart safety technologies are essential for ensuring accurate observation of everything near the vehicle to prevent accidents resulting from misjudgments caused by blind spots.

The functionality of the blind spot monitoring system aligns with that of lane-keeping assistance, emphasizing proactive reminders to prevent accidents. By installing two millimeter-wave radars inside the car's rear bumper, the system monitors moving vehicles within a certain range behind the car. The warning lights installed in the side mirrors alert the driver of vehicles behind. If the driver activates the turn signal to change lanes at that time, the system triggers an alarm and rapid flashing of the warning lights in the mirrors to caution the driver of the lane-changing danger.

The usage scenario of the blind spot system revolves around resolving rear blind spots, primarily due to millimeter-wave radars being unaffected by weather conditions, operating effectively even in foggy or rainy weather. Even if the driver cannot observe the surroundings clearly through the rearview mirror, they can be informed of oncoming traffic through the warning lights installed in the mirrors. The system also encourages drivers to develop the habit of using turn signals by providing audible and visual reminders about the feasibility of changing lanes. Side-view camera systems, such as Volvo's blind-spot information system, utilize two cameras beneath the left and right rearview mirrors. These cameras relay images of the rear blind spots to the display screen and use warning lights on the rearview mirror brackets to alert the driver of the danger of approaching vehicles, eliminating rear blind spots. However, the drawback of using cameras is their susceptibility to weather conditions, leading to potential false alarms or missed alerts in poor lighting conditions.

360-degree panoramic cameras, equipped with four wide-angle cameras installed at the front, rear, left, and right sides, enable angle adjustments to eliminate potential blind spots. This technology is effective for preventing collisions during parking or judging distances from obstacles in narrow lanes. Some products even include recording functions acting as dash cams, providing valuable evidence in cases of collisions or hit-and-run incidents while driving. Solutions developed to address driver blind spots in rearview mirrors have undergone multiple developmental stages, ultimately utilizing millimeter-wave radar to detect approaching objects from behind and warn the driver through audible and visual alerts about vehicles in the blind spot. The technology behind blind-spot monitoring systems has matured significantly, allowing car owners to choose reliable brands for installation and enhance the sense of security regarding rearview mirror blind spots.