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Pre-Lifeguard is a telecontrol devise of water lifesaving.
The traditional way of water lifesaving require the lifeguard swim to the drowning
person in a very short time, and sometimes it is not enough. The Pre-Lifeguard supply a
temporary floater for the drowning person in a urgent time and guarantee them security
before the lifeguard arrive.
Luo Shijian, Zhu Shangshang
Wei Chengyuan, Wang Jiaolong , Liu Qi , Ma Longjiao , Zhang Jiawei