首页
登录
职称英语
Swimmers can drown in busy swimming pools when lifeguards fail to notice tha
Swimmers can drown in busy swimming pools when lifeguards fail to notice tha
游客
2025-04-25
33
管理
问题
Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble. The Royal Society for the Prevention of Accidents says that on average 15 people drown in British pools each year, but many more suffer major injury after getting into difficulties. Now a French company has developed an artificial intelligence system called Poseidon that sounds the alarm when it sees someone in danger of drowning.
When a swimmer sinks towards the bottom of the pool, the new system sends an alarm signal to a poolside monitoring station and a lifeguard’s pager. In trials at a pool in Ancenis, near Nantes, it saved a life within just a few months, says Alistair McQuade, a spokesman for its manufacturer, Poseidon Technologies.
Poseidon keeps watch through a network of underwater and overhead video cameras. AI software analyses the images to work out swimmers, trajectories. To do this reliably, it has to tell the difference between a swimmer and the shadow of someone being cast onto the bottom or side of the pool. "The underwater environment is a very dynamic one, with many shadows and reflections dancing around." Says McQuade.
The software does this by "projecting" a shape in its field of view onto an image on the far wall of the pool. It does the same with an image from another camera viewing the shape from a different angle. If the two projections are in the same position, the shape is identified as a shadow and is ignored. But if they are different, the shape is a swimmer and so the system follows its trajectory.
To pick out potential drowning victims, anyone in the water who starts to descend slowly is added to the software’s "pre-alert" list, says McQuade. Swimmers who then stay immobile on the pool bottom for 5 seconds or more are considered in danger of drowning. Poseidon double-checks that the image really is of a swimmer, not a shadow, by seeing whether it obscures the pool’s floor texture when viewed from overhead. If so, it alerts the lifeguard, showing the swimmer’s location on a poolside screen.
The first full-scale Poseid6n system will be officially opened next week at a pool in High Wycombe, Buckinghamshire. One man who is impressed with the idea is Travor Baylis, inventor of the clockwork radio. Baylis runs a company that installs swimming pools—and he was once an underwater escapologist with a circus. "I say full marks to them if this works and can save lives," he says. But he adds that any local authority spending £30,000— plus on a Poseidon system ought to be investing similar amounts in teaching children to swim. [br] AI stands for ______
选项
A、an image.
B、an idea.
C、anyone in the water.
D、artificial intelligence.
答案
D
解析
artificial intelligence人工智能。AI由artificial中的第一个字母A和intelligence中的第一个字母I合成。这样的词常叫做“首字母词”。严谨的说法应该是“首字母合成词”。字母词一般由实义词的首字母合成。因此A、B、C都可以排除。A一个图像。B一个思想。C水中的任何一个人。
转载请注明原文地址:https://tihaiku.com/zcyy/4052480.html
相关试题推荐
Thefirstthingtonoticeisthatthemediawe’reallfamiliarwith—fromb
Thefirstthingtonoticeisthatthemediawe’reallfamiliarwith—fromb
Thefirstthingtonoticeisthatthemediawe’reallfamiliarwith—fromb
InJuly,almostunnoticedbythenationalpress,adeadlybirdvirusarrived
InJuly,almostunnoticedbythenationalpress,adeadlybirdvirusarrived
InJuly,almostunnoticedbythenationalpress,adeadlybirdvirusarrived
InJuly,almostunnoticedbythenationalpress,adeadlybirdvirusarrived
Swimmerscandrowninbusyswimmingpoolswhenlifeguardsfailtonoticetha
Swimmerscandrowninbusyswimmingpoolswhenlifeguardsfailtonoticetha
Swimmerscandrowninbusyswimmingpoolswhenlifeguardsfailtonoticetha
随机试题
M:Iwanttotryonthatblackpair.W:________(反对)A、Doyoumeanthisblackpai
A.improperB.beforeC.demonstrationD.issueE.illegalF.offerG.interpret
Accidentsarecaused;theydon’tjusthappen.Thereasonmaybeeasytosee:
A.促胃液素 B.缩胆囊素 C.促胰液素 D.促胃动素可促进胃液分泌和胃运
下列有关“高程”的表述项中,哪项是错误的?( )A.我国规定以黄海的常年海水面
细菌菌相是共存于食品中的( )和相对数量的构成。A.细菌的分布 B.细菌
当发生电压回路断线时,应及时停用距离保护。
某工程双桥静探资料见表4-3,拟采用③层粉砂做持力层,采用混凝土方桩,桩断面尺寸
根据《水利建设工程文明工地创建管理办法》(水精[2014]3号),获得“文明工地
下列不属于线性盈亏平衡分析的前提条件的是( )。A.生产量等于销售量 B.产销
最新回复
(
0
)