bsm with mirror set

What is the difference between lane assist and blind spot monitoring

What is the difference between lane assist and blind spot monitoring


I often encounter some car owners ask me what is the difference between lane assist and blind spot monitoring. Blind zone monitoring, as the name implies, is a product that monitors the blind spots in the field of vision. Small cars have many blind spots in the field of vision, such as the front blind spot, the rear blind spot, the A-pillar blind spot, the left and right side mirror blind spot, generally the front blind spot and the back blind spot, we will use the ultrasonic radar plus camera to monitor the way. The blind spot monitoring that we talk about everyday mainly refers to the blind spot of the left and right side mirrors. Generally, when drivers change lanes (merge), they will first look at the rearview mirror to confirm whether there is an oncoming car behind them before changing lanes. So whether it is lane assist, blind spot monitoring, blind spot monitoring or lane change assist, they all refer to products that monitor the blind spots on both sides of the rearview mirror, we can understand them as the same product, just different people call it different.

lane assist and blind spot monitoring

For example, Audi, Ford and other car companies will call it BLIS (Blind Spot Information System) Blind Spot Information System, Toyota, Mazda and others call it BSM (Blind Spot Monitoring) Blind Spot Monitor, General Motors call it SBZA ((Side Blind Zone Approach)) Side Blind Zone Approach Warning)) side blind zone approach warning system, some car companies call it BSD (Blind Spot Detection) blind spot detector, in China, there is a unified terminology, the set of systems are collectively called parallel assistance.

lane assist and BLIND SPOT MONITORing

This device takes the form of two hidden sensors mounted on the rear of the car, and lights up on the rearview mirror piece (on the inside of the mirror housing or on the triangular window in some models) to alert the driver of oncoming traffic behind them, with some products using a combination of sound and light. Through the two rear bumper mounted on the one-shot dual-receiver microwave radar, the adjacent lane is monitored, and when an oncoming car is detected, the signal is transmitted to the controller, which is processed and converted into a light signal to the rearview mirror, lighting up the blind spot light for warning. When the left side of the radar monitoring of incoming traffic, light signal will only transmit the left side of the mirror, the right side of the same. If the lights on one side are lit (i.e. when there is an oncoming car on that side), if the driver toggles the turn signal on that side, the warning light on the rearview mirror will flash and the buzzer will sound a “drip drip drip” alert to remind the driver that changing lanes will be dangerous at this time.

lane assist and blind spot monitoring

Parallel assist is the vehicle parallel when the system will remind the driver of the oncoming traffic behind, to eliminate blind spots, improve driving safety, in addition to helping newcomers, is also a good set of auxiliary systems for veteran drivers.

The traditional ultrasonic radar detection distance is close and can not distinguish between stationary and mobile, and the high cost of LIDAR, so the current parallel assistance mainly uses millimeter wave radar as a detector, which is mainly 24ghz and 77ghz two frequency band. In addition, there are also similar to the camera program used by Tesla, but the camera is more affected by the weather, encountering low visibility environment, will affect the work.


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