Cars make it very convenient for people to travel, but at the same time, there are also great security risks on the road, especially in the world where low-headed people are rampant, and traditional traffic lights are useless. To this end, many places have come up with strange tricks, among which the new traffic lights on the streets of Ukraine are the most attractive. This traffic light can present a traffic light curtain wall at the intersection. When it is at a red light, it is like a red wall. When people drive to the front, they will stop involuntarily. In the case of green light, this red wall will disappear. In China, some people have applied for related utility model patents. This technology uses the curtain wall formed by infrared spotlight to achieve the warning effect. Who is the inventor and designer of this technology?
A. Wang Ran
B. Wu Yifan
C. green beans; Beans; green soya bean
D. Wu Shuiqing
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