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最近,美国一家公司试制一种电子游泳看护器。该设备采用了家庭安全电脑系统的技术,在游泳池两侧的水平线位置安装两组(每组5个)传感系统,传感器发出的无线电信号由室内接受器加以记录。它主要是在游泳池内无人游泳时,用以监视是否有人落水。在有人游泳时,将装置调至“游泳”档,它即自动解除警报;在无人游泳时,则调至“监察”档。它是依据水平面的波动来对场内情况加以判断的,因此,如有一个重1.8公斤的物体落水,那么池内水波起伏即0.6厘米,图内接受器收到这一数据后即报警。如有孩子不慎落水,便可得到警报。还有一种是直径为25厘米的“示警碟”,使用时将它系于池内,如有重达7公斤的物体落水,它会立即对水面骤然起伏作出反应,发出高达85分贝的
Recently, a company in the United States trial of an electronic swimming care device. The device incorporates technology from a home-based computer system that installs two (five per group) sensing systems in the horizontal line on either side of the pool. Radio signals from the sensors are recorded by the indoor receiver. It is mainly used to monitor whether someone is falling asleep when no one is swimming in the swimming pool. When someone is swimming, the device is set to “Swim”, it will automatically lift the alarm; in the absence of swimming, then transferred to the “surveillance” file. It is based on fluctuations in the water level to judge the situation inside the venue, therefore, if a weight of 1.8 kg of objects fell into the water, then the water wave within the pool that is 0.6 cm, the receiver receives the data that the alarm. If a child accidentally fell into the water, you can get an alarm. There is also a “warning plate” 25 cm in diameter, which is tied to the pool when in use. If there is a water fall of 7 kg, it immediately responds to sudden fluctuations in the water surface and emits up to 85 dB