2015考研英语阅读题源:同源外刊时文精析6
Tracking your every move
Some families in America and elsewhere have started buying childfriendly mobile phones outfitted with GPS (Global Positioning System) technology.
These phones and their related tracking services allow parents to pinpoint the location of their children with ease. Parents agree to pick up the phone bill in return for the reassurance of knowing where their children are; children are prepared to put up with the snooping if they are allowed to have a phone.
Mobile operators in America are now launching tracking services. Under a federal mandate known as E911, they had to upgrade their networks to ensure that anyone dialling the 911 emergency number could be located to within 100 metres. Some operators opted for triangulation technology, which determines the location of the handset by comparing the signals received by different basestations. But Verizon and Sprint chose to adopt the more expensive but more accurate GPS technology instead, and are now looking for ways to make money from it.
Verizon calls its service “Chaperone”. For $10 a month, parents can call up the location of their child’s LG Migo handset from their own mobile phones, or from a PC. The child receives a message saying that the handset’s position has been requested, and the parents receive an address, or a marker on a webbased ap, giving the child’s location. For an extra $10 per month, they can sign up for Child Zone, a service that, among other things, fires off an alert when a youngster (or, at least, the youngster’s handset) trays outside a specified area.
For its part, Sprint has launched a similar service that can also let parents know when a child arrives at a particular location.
Another location service is available from Nextel, a mobile operator that was taken over by Sprint in 2005. Nextel opened up some of its systems to enable other firms to build their own software and services on top of its GPS technology. One example is AccuTracking, a small company which offers a tracking service for $6 a month and boasts that it is “ideal for vehicle tracking” or to keep “virtual eyes on kids”. Some customers are also using the service to track their spouses, by hiding phones in their cars.“Mine is hidden under the hood, hot-wired to the battery—it works very well and it is easy to hook up continuous power,” writes one customer on AccuTracking’s message board, who is tracking her husband.
Start-ups are working on everything from city-wide games of hide-and-seek to monitoring the locations of Alzheimer’s patients. Services that monitor jogging routes, and work out distance travelled and calories consumed, might also prove popular.
As a result, mobile operators, handset-makers and start-ups could transform and expand a small, specialist market hitherto dominated by expensive, dedicated tracking systems.
现阶段考生最关注:
2022考研初复试已经接近尾声,考研学子全面进入2023届备考,跨考为23考研的考生准备了10大课包全程准备、全年复习备考计划、目标院校专业辅导、全真复试模拟练习和全程针对性指导;2023考研的小伙伴针也已经开始择校和复习了,跨考考研畅学5.0版本全新升级,无论你在校在家都可以更自如的完成你的考研复习,暑假集训营带来了院校专业初步选择,明确方向;考研备考全年规划,核心知识点入门;个性化制定备考方案,助你赢在起跑线,早出发一点离成功就更近一点!
考研院校专业选择和考研复习计划 | |||
2023备考学习 | 2023线上线下随时学习 | 34所自划线院校考研复试分数线汇总 | |
2022考研复试最全信息整理 | 全国各招生院校考研复试分数线汇总 | ||
2023全日制封闭训练 | 全国各招生院校考研调剂信息汇总 | ||
2023考研先知 | 考研考试科目有哪些? | 如何正确看待考研分数线? | |
不同院校相同专业如何选择更适合自己的 | 从就业说考研如何择专业? | ||
手把手教你如何选专业? | 高校研究生教育各学科门类排行榜 |
相关推荐
跨考考研课程
班型 | 定向班型 | 开班时间 | 高定班 | 标准班 | 课程介绍 | 咨询 |
秋季集训 | 冲刺班 | 9.10-12.20 | 168000 | 24800起 | 小班面授+专业课1对1+专业课定向辅导+协议加强课程(高定班)+专属规划答疑(高定班)+精细化答疑+复试资源(高定班)+复试课包(高定班)+复试指导(高定班)+复试班主任1v1服务(高定班)+复试面授密训(高定班)+复试1v1(高定班) | |
2023集训畅学 | 非定向(政英班/数政英班) | 每月20日 | 22800起(协议班) | 13800起 | 先行阶在线课程+基础阶在线课程+强化阶在线课程+真题阶在线课程+冲刺阶在线课程+专业课针对性一对一课程+班主任全程督学服务+全程规划体系+全程测试体系+全程精细化答疑+择校择专业能力定位体系+全年关键环节指导体系+初试加强课+初试专属服务+复试全科标准班服务 |