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tested the performance of the Wi-Fi RTT technology and made the conclusion that, subject to the specified requirements, the obtained result exceeds the declared values. Thus, within 95% of the time, the positioning accuracy in the check point is less than 1 m and within 50% of the time, the accuracy
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The technology operation principle is based on time delay in signal reception and transmission - the time necessary for sending a signal and the time required for receiving its confirmation have to be taken into account. The system calculates this time span and then multiplies it by the speed of
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The technology makes it possible to create location-based applications and detailed services that let users orient easily inside buildings. In comparison with BLE, the function ensures higher accuracy in defining location and accelerates production processes.
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While it is not the main purpose of the maintenance/revision group, some features deemed not big enough to require a full Task Group within the IEEE 802.11 WG are sometimes added to the IEEE 802.11 standard via the maintenance/revision group.
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Many smartphone models with the
Android 9 or later operating system can calculate the distance to access points. The following devices support Wi-Fi RTT technology: Xiaomi, LG Corporation, Samsung, Google Pixel, Poco X2, Sharp Aquos.
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figures are kept within the limits of 30 cm. The delay in locating doesn’t exceed 1 sec. Such time frames can be achieved by using the function of calculating pedestrian coordinates (PDR) within the particle filter.
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DEPRECATED: Starting with
Android P the WiFi RTT is part of the public API! This Android library works as proxy to the hidden android.net.wifi.RttManager-API. To work as wrapper this lib makes heav..
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standards. Purpose was to incorporate accumulated maintenance changes (editorial and technical corrections) into IEEE Std 802.11-2012, and roll up approved amendments into the standard.
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user can have lights turn on when they enter a particular room by simply making voice commands since the device is location-aware (e.g. "turn on the lights in this room").
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does not require that the phone connect to any Wi-Fi access points. Only the phone is used to determine distance, not the APs. This feature is also tied into the
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Not all devices have the necessary hardware support yet for this feature. At present the list of the certified routers contains only the following models:
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With accurate indoor position awareness, apps can perform advanced automation based on where a device is in a building. For example, a
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With a single Wi-Fi access point, only a distance measurement is available. With three or more nearby APs, an app can
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TGmc has ceased its operation. Maintenance/revision for IEEE Std 802.11-2016 is being handled by TGmd.
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525:"A needle in a haystack: how Wi-Fi RTT takes Indoor Positioning to the next level, Navigine"
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Following amendments were incorporated by TGmc on top of IEEE Std 802.11-2012:
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400:'s existing location system to preserve the user's privacy. Apps using
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548:"Enhanced WiFi Ranging with Round Trip Time (RTT) Measurements"
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404:(RTT) need the location permission, and the device must have
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a device's location with an accuracy of one to two meters.
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The main feature added through TGmc is commonly known as
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508:"Wi-Fi location: ranging with RTT, Google Developers"
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323:. The accuracy is better than estimations with
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50:Learn how and when to remove these messages
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159:reliable, independent, third-party sources
195:Learn how and when to remove this message
177:Learn how and when to remove this message
107:Learn how and when to remove this message
292:For broader coverage of this topic, see
153:by replacing them with more appropriate
70:This article includes a list of general
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136:too closely associated with the subject
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357:Compulab Wi-Fi Indoor Location Device.
319:with a precision of 1–2 metres using
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360:Google Nest Wi-Fi (Point or Router).
329:received signal strength indication
542:Online Courses - Anytime, Anywhere
76:it lacks sufficient corresponding
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453:"IEEE P802 - Task Group M Status"
31:This article has multiple issues.
134:may rely excessively on sources
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39:or discuss these issues on the
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408:enabled at the system level.
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216:IEEE 802.11 Working Group
398:Android operating system
1906:Category:IEEE standards
406:location-based services
91:more precise citations.
402:round-trip delay time
305:Wi-Fi Round Trip Time
288:Wi-Fi Round Trip Time
243:Amendments rolled-In
234:IEEE Std 802.11-2016
313:Wi-Fi access points
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555:. Retrieved
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483:. Retrieved
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149:Please help
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1927:IEEE 802.11
1468:legacy mode
485:28 February
457:Ieee802.org
434:Ieee802.org
394:Android Pie
388:Android Pie
365:Application
341:trilaterate
224:IEEE 802.11
89:introducing
1846:Superseded
917:802 series
557:2018-03-22
416:References
371:smartphone
151:improve it
141:verifiable
72:references
36:improve it
1721:Bluetooth
327:based on
309:Wi-Fi RTT
279:IEEE Std
272:IEEE Std
265:IEEE Std
258:IEEE Std
251:IEEE Std
236:in 2016.
214:) of the
167:June 2019
155:citations
42:talk page
1921:Category
1896:See also
1853:754-1985
1810:Proposed
1154:Ethernet
640:Revision
381:Navigine
331:(RSSI).
281:802.11af
274:802.11ac
267:802.11ad
260:802.11aa
253:802.11ae
1837:P1906.1
1698:Wi-Fi 8
1674:Wi-Fi 7
1640:Wi-Fi 6
1589:Wi-Fi 5
1534:Wi-Fi 4
613:Current
552:ion.org
347:light.
335:Concept
145:neutral
85:improve
1741:Zigbee
1709:802.15
1449:802.11
687:1149.1
74:, but
1832:P1823
1827:P1699
1822:P1619
1817:P1363
1599:WiGig
1463:-1997
1454:Wi-Fi
1163:-1983
1149:802.3
1031:802.1
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474:(DOC)
283:-2013
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