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
考研
Many are aware of the tremendous waste of energy in our environment, but fail to take advantage of straightforward opportunities
Many are aware of the tremendous waste of energy in our environment, but fail to take advantage of straightforward opportunities
admin
2019-06-11
99
问题
Many are aware of the tremendous waste of energy in our environment, but fail to take advantage of straightforward opportunities to conserve that energy. For example, everyone knows that lights should be switched off when no one is in an office. Similarly, when employees are not using a meeting room, there is no need to regulate temperature.
Fortunately, one need not rely on
human intervention
to conserve energy. With the help of smart sensing and network technology, energy conservation processes such as turning off lights and adjusting temperature can be readily automated. Ultimately, this technology will enable consumers and plant managers to better identify wasteful energy use and institute procedures that lead to smarter and more efficient homes, buildings and industrial plants.
Until now, wires and cables for power and connectivity have limited the widespread adoption of sensor networks by making them difficult and expensive to install and maintain. Battery-powered wireless networks can simplify installation and reduce cost. But their high power consumption and the corresponding need for regular battery replacement has made wireless networks difficult and costly to maintain. Nobody wants to replace hundreds or thousands of window sensor batteries in a large building on a regular basis.
The promise of wireless sensor networks can only be fully realized when the wiring for both the data communication and the power supply is eliminated. Doing so requires a true battery- free wireless solution , one that can utilize energy harvested directly from the environments. To facilitate the widespread deployment of wireless sensor networks, Greenpeak has developed an ultra-low-power communication technology that can utilize environmental energy sources such as light, motion and vibration. This technology, employing on-board power management circuits and computer software to monitor energy harvesters and make the best use of harvested energy, enables sensors to operate reliably in a battery-free environment.
Wireless sensor networks deployed in our offices and homes will have an enormous impact on our daily lives, helping to build a smarter world in which energy is recycled and fully utilized. These wireless platforms, equipped with advanced sensing capability, will enable us to better control our lives, homes and environment, creating a truly connected world that enables people worldwide to live in a more comfortable, safer, and cleaner environment.
Battery-free wireless sensor networks are made possible by the fact that
选项
A、there is energy in the environment to be utilized.
B、the cost of using them has been drastically reduced.
C、modern data communication consumes little energy.
D、their maintenance has been greatly simplified.
答案
A
解析
细节题。根据第四段前两句可知,当数据通信和供电系统之间的线全部清除时,无线传 感器网络这个愿望就完全可以实现。这就需要一个真正的不同电池的无线网络解决方案,那种 网络可以直接利用从环境中获得的能源。因此答案为A项。
转载请注明原文地址:https://kaotiyun.com/show/yB9Z777K
0
考研英语一
相关试题推荐
Formanypeople,emotionsareascarything.【C1】______oftheproblemisthatwejustdon’tknowwhattodowiththem,according
Formanypeople,emotionsareascarything.【C1】______oftheproblemisthatwejustdon’tknowwhattodowiththem,according
Formanypeople,emotionsareascarything.【C1】______oftheproblemisthatwejustdon’tknowwhattodowiththem,according
Iftheworld’seducationsystemshaveacommonfocus,itistoturnoutschool-leaverswhoareproficientinmaths.Governments
Itishardtomakemoneypeddlingsocialmediaanywhere.Duringtheirfirstfewyearsinbusiness,FacebookandTwitterlostpot
Ofallthegoodsandservicestradedinthemarketeconomy,pharmaceuticalsareperhapsthemostcontentious.Thoughproducedby
Climatechangeissupposedtounfoldslowly,overdecades.Butthatisnottrueupinthegreatwhitenorth,asthoseattending
Inthelate1960’s,manypeopleinNorthAmericaturnedtheirattentiontoenvironmentalproblems,andnewsteel-and-glassskysc
GooglealreadyhasawindowintooursoulsthroughourInternetsearchesanditnowhasinsightintoourailingbodiestoo.The
随机试题
配产配注方案的最终落脚点是()和小层。
患者,男,68岁。久病,消瘦乏力,面色萎黄,畏寒肢冷,腰痠遗精,眩晕耳鸣。首选
石膏的性味是
下列不属于瓜蒌主治病证的是
3S是指()。
在水质模型预测中,模拟预测的河段范围应包括()。
某省的一家施工企业从法国的一家设备公司购进一批设备,买价、相关税费共100000元。为了使款项快速、安全地汇人该设备公司的银行账户,两家企业可以采用的银行结算方式是( )。
完全垄断市场的特征有()。
下列说法正确的有()。
【2011南京大学计算题第6题】基金A每份价值1元,现以1.05元的价格对外出售,据其披露的投资计划,下一年度基金总额的20%将投资于收益率为5%的无风险资产,80%投资于贝塔为1.1的风险资产组合,若市场中贝塔为1的风险资产组合的期望收益率为10%,你是
最新回复
(
0
)