There are many safety hazards in forklift driving, among which the blind spot of cargo stacking is a significant pain point. When the cargo is stacked very high, the driver's vision will be blocked and he cannot directly see the top of the cargo, which increases the risk of cargo rollover and may cause the cargo to fall over and hit nearby people during operation. At the same time, the rear-view blind spot is also a serious problem. The driver cannot fully observe the surrounding environment through the rear view mirror, which increases the probability of accidents.