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实时采集用户心率、手臂相对水运动产生的压力、经纬度信息、三轴加速度信息，结合溺水监测算法实现对于溺水现象的实时监测，并基于LORA通信、MQTT协议与云端的emqx服务器将数据实时上报至小程序。 能够精准判断佩戴者是处于普通状态、正常游泳、闭气游戏、溺水状态四种状态。并于溺水状态 ...

Literally, it means this. Imagine Trump is drowning in the deep end of a swimming pool (because he is not as good and smart a swimmer as he claims he is and this time he finds himself really out of ...