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Abstract
Urgency calls applications, encouraged by regulations E911/E112, recently led communication carriers to develop systems allowing a guaranteed location of mobile terminals. Location must be carried out in all the environments covered by the communication service, including the most constraining areas such as deep indoor environments. This location capability, combined with a data transfer service, opens the way for a new market named LBS ("Location Based Services"). The development perspectives of this market are exponential, but positioning systems designers face significant constraints to meet performances requirements of urban and indoor applications. A study named "AMINA" co-funded by the French space agency (CNES) was undertaken by Pole Star. Its objectives were to determine which technologies would better satisfy various indoor LBS applications. This paper describes results of this study and discusses technical challenges, candidate technologies and solutions. Criteria used to compare candidate technologies are first defined, evocating positioning performances, communication capacity, implementation costs, ubiquity and versatility versus operational modes (e.g. in car mode or pedestrian mode). Many systems, such as the positioning methods of cellular networks (UMTS and A-GPS) or Wireless networks (WIFI, Bluetooth), and specific long range and short-range radiolocation systems are then evaluated and compared. GPS and the future European system Galileo will allow sufficient positioning performances in open environment, but need augmentation for urban and indoor environment. The study has thus been directed on the hybridation or transfer possibilities between GNSS and other systems. MEMS ("Micro Electro Mechanical Systems"), which currently experience significant developments and offer new perspectives for the hybridation of GNSS with inertial navigation systems, have been analysed in this field. A special attention has also been paid on UWB ("Ultra Wide Band") technology. This new research domain promises location and communication capabilities and can be envisaged as an indoor local element for Galileo. Ongoing and future activities engaged by the CNES and Pole Star are finally described. Read the entire article on http://www.polestar-corporate.com |
#2
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![]() "Pole Star" wrote in message ... Abstract Urgency calls applications, encouraged by regulations E911/E112, recently led communication carriers to develop systems allowing a guaranteed location of mobile terminals. Location must be carried out in all the environments covered by the communication service, including the most constraining areas such as deep indoor environments. This location capability, combined with a data transfer service, opens the way for a new market named LBS ("Location Based Services"). The development perspectives of this market are exponential, but positioning systems designers face significant constraints to meet performances requirements of urban and indoor applications. LBS has been knocking around for 6 or 7 years now in one form or another on most GSM networks. Certainly all the W-CDMA networks have location servers and most of the existing GSM networks. The problem is money making apps and the client applications to take advantage of them. Dave |
#3
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Dave O'Neill dave @ nospam atomicrazor . com wrote:
"Pole Star" wrote in message ... Abstract Urgency calls applications, encouraged by regulations E911/E112, recently led communication carriers to develop systems allowing a guaranteed location of mobile terminals. Location must be carried out in all the environments covered by the communication service, including the most constraining areas such as deep indoor environments. This location capability, combined with a data transfer service, opens the way for a new market named LBS ("Location Based Services"). The development perspectives of this market are exponential, but positioning systems designers face significant constraints to meet performances requirements of urban and indoor applications. LBS has been knocking around for 6 or 7 years now in one form or another on most GSM networks. Certainly all the W-CDMA networks have location servers and most of the existing GSM networks. The problem is money making apps and the client applications to take advantage of them. A lot is simply somebody undertaking to do such. Seriously. Location based parking lot / restataurant / etc suggestions are not hard to do do not require massive investments etc. Well, not with GSM anyways. Dave -- Sander +++ Out of cheese error +++ |
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