首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Pool Watch Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble. The Royal Soci
Pool Watch Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble. The Royal Soci
admin
2011-01-02
81
问题
Pool Watch
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 MeQuade, a spokesman for its maker, Poseidon Technologies.
Poseidon keeps watch through a network of underwater and overheard video cameras. AI software analyses the images to work out swimmers trajectories(轨道,轨线). 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 of 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 Poseidon 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 (表演脱身术的人)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 230,000 -- plus on a Poseidon system ought to be investing similar amounts in teaching children to swim.
AI means the same as
选项
A、an image.
B、an idea.
C、anyone in the water.
D、artificial intelligence.
答案
D
解析
短文第一段提到artificial intelligence,AI为其第一个字母缩写,故选D。
转载请注明原文地址:https://kaotiyun.com/show/JALd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
AnObservationandanExplanationItisworthlookingatoneortwoaspectsofthewayamotherbehavestowardsherbaby.The
DoPatientsTrustDoctorsTooMuch?Earlierthisyear,theAmericanCollegeofSurgeons,thenationalscientificandeducati
MultipleSclerosis(多发性硬化症)1.MultipleSclerosis(MS)isadiseaseinwhichthepatient’simmune(免疫的)systemattacksthecentr
Hewas(weary)oftheconstantbattlebetweenthem.
Notallmemberstatesabidedbytheprincipletheyhadagreedonpreviously.
’FeedMeBetter’WhenBritishTVchefJamieOliverlaunchedhis’FeedMeBetter’campaignin2004inschoolsintheGreenw
TryingtoFindaPartnerOneofthemoststrikingfindingsofarecentpollintheUKisthatofthepeopleinterviewed,one
ThemailIwrotetomymomwasdeliveredthismorning.
A.milk,meat,vegetables,etc.weredeliveredB.ithaspromotedthesalesofmanykindsofcommoditiesC.anew,economicalwa
Jackisadiligentstudent.
随机试题
对吗啡镇痛作用叙述,错误的是:
A、可导致高尿酸血症、高血糖、高脂血症B、可致高度房室传导阻滞C、长期用药后频繁干咳D、导致嗜睡、抑郁和晕眩E、首剂现象明显,可致严重的直立性低血压哌唑嗪
如题25图所示,矿井和横向坑道相连,竖井高200m,坑道长300m,坑道和竖井内气温保持不变,t=15℃,密度ρ=1.18kg/m3,坑外气温在早上为5℃、ρ0=1.29kg/m3,设总的损失,则气流速度大小和方向为()。
“慎终追远,民德归厚”出自《论语.学而》,表达了古人对人生的态度和思考,这一思想在中国传统节日()的活动中得以充分体现。
下列不符合《行政处罚法》规定的有()。
Amtrak—thelargestrailwaycompanyintheU.S.—wasexperiencingadeclininginridership.【C1】______majorconcernstoAmtrakand
AmericanMuseumofNaturalHistoryisoneofthelargestnaturalandhistoricmuseumsintheworldandoneofthemainnaturalh
Extraordinarycreativityhasbeencharacterizedasrevolutionary,flyinginthefaceofwhatisestablishedandproducingnotwh
Languagecompetenceandlanguageperformancearecompletelydifferent.Competenceisanabilitytorecognizeandunderstandsent
A、Togetsomemoney.B、Tocashthecheques.C、TogetsomeinformationaboutRMB.D、Toknowtheexchangerate.B题目询问这位男士想干什么。根据对话
最新回复
(
0
)