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Singapore firm working on "indoor GPS"

时间：2011-10-10 06:29:50

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 　　SINGAPORE, Oct. 10 (Xinhua) -- A Singapore start-up firm has devised an innovative1 application to allow phone users to have access to their positioning information within buildings, where traditional global positioning system has often proved inaccurate2, local daily Business Times reported on Monday.

　　The firm YFind Positioning System feels that the application can help turn Singapore into the world's first location- intelligent city.
　　Ting See Ho, co-founder of the firm, said the application works by first verifying the GPS coordinates3 to identify the building the user is in, and then collecting RSSI (received signal strength information) readings off WiFi access points within the building.
　　The information is then sent by the phone to the central positioning server for comparison against records of the radio map of the building, which is calibrated4 earlier by the company.
　　Ting said the RSSI readings continually fluctuates, making it difficult to estimate a position. This is where YFind Positioning System steps in with its patent-pending probabilistic algorithms to help accurately5 estimated the user's indoor positions.
　　Once the phone application determines the location, then, it is able to map a course for a shop or other destination within the building where the user wants to go.
　　"You can think of it as creating an 'indoor GPS' environment in the buildings where satellite signals cannot be read," Ting said.
　　He said that more than ten organizations in Singapore have approached the company to discuss deployment6 and partnerships7 and that it has begun work on three proof-of-concepts.
　　The company's immediate8 goal is to make Singapore the world's first location-intelligent city before going to other cities, he said.

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1 innovative D6Vxq     
adj.革新的，新颖的，富有革新精神的
参考例句：
  • Discover an innovative way of marketing.发现一个创新的营销方式。
  • He was one of the most creative and innovative engineers of his generation.他是他那代人当中最富创造性与革新精神的工程师之一。
2 inaccurate D9qx7     
adj.错误的，不正确的，不准确的
参考例句：
  • The book is both inaccurate and exaggerated.这本书不但不准确，而且夸大其词。
  • She never knows the right time because her watch is inaccurate.她从来不知道准确的时间因为她的表不准。
3 coordinates 8387d77faaaa65484f5631d9f9d20bfc     
n.相配之衣物；坐标( coordinate的名词复数 )；（颜色协调的）配套服装；[复数]女套服；同等重要的人（或物）v.使协调，使调和( coordinate的第三人称单数 )；协调；协同；成为同等
参考例句：
  • The town coordinates on this map are 695037. 该镇在这幅地图上的坐标是695037。 来自《简明英汉词典》
  • The UN Office for the Coordination of Humanitarian Affairs, headed by the Emergency Relief Coordinator, coordinates all UN emergency relief. 联合国人道主义事务协调厅在紧急救济协调员领导下，负责协调联合国的所有紧急救济工作。 来自《简明英汉词典》
4 calibrated 6ac8922cd7bfd487c7dd1bd65d0f6191     
v.校准( calibrate的过去式和过去分词 )；使标准化；使合标准；测量（枪的）口径
参考例句：
  • Power pesticide dusters can be calibrated and used to apply pertilizer. 动力杀虫剂可以调整用来施肥。 来自辞典例句
  • The flexible diaphragm is connected to a plat cantilever-calibrated spring. 柔韧的膜片一扁平的悬臂校正弹簧相连。 来自辞典例句
5 accurately oJHyf     
adv.准确地，精确地
参考例句：
  • It is hard to hit the ball accurately.准确地击中球很难。
  • Now scientists can forecast the weather accurately.现在科学家们能准确地预报天气。
6 deployment 06e5c0d0f9eabd9525e5f9dc4f6f37cf     
n. 部署,展开
参考例句：
  • He has inquired out the deployment of the enemy troops. 他已查出敌军的兵力部署情况。
  • Quality function deployment (QFD) is a widely used customer-driven quality, design and manufacturing management tool. 质量功能展开(quality function deployment,QFD)是一个广泛应用的顾客需求驱动的设计、制造和质量管理工具。
7 partnerships ce2e6aff420d72bbf56e8077be344bc9     
n.伙伴关系( partnership的名词复数 )；合伙人身份；合作关系
参考例句：
  • Partnerships suffer another major disadvantage: decision-making is shared. 合伙企业的另一主要缺点是决定要由大家来作。 来自英汉非文学 - 政府文件
  • It involved selling off limited partnerships. 它涉及到售出有限的合伙权。 来自辞典例句
8 immediate aapxh     
adj.立即的；直接的，最接近的；紧靠的
参考例句：
  • His immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
  • We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。

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