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
24
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
[img]2011q1/ct_etoeiclj_etoeiclzp_0022_201131[/img][br][originaltext](A)They
TwoCulturalDimensionsCultureisthecollectiveprogrammingofthemindwhich
Astrolltoschoolinthemorningcanhelpkidsprepareforthestressestha
刘某作为医师刚刚开始执业,由于从事的治疗是新技术,受到客户质疑的可能性较大。刘某
医师进行实验性临床医疗,应当经医院批准并征得患者本人或者其家属同意。()
酶免疫组织化学技术中最常用的酶是( )。A.胃蛋白酶 B.胰蛋白酶 C.葡
Thechangeinthatvillagewasmiraculou
患者,男性,41岁。严重脑外伤。护士收集资料、评估患者、制订护理计划。该计划中,
发放二手车贷款的金额不得超过借款人所购价格的50%,贷款期(含展期)不得超过3
德仁公司是一家制药集团企业,2013年下半年,该公司通过并购将一家药店纳入公司旗
最新回复
(
0
)