JTC 1/SC 31 relevance to IoT - OGC Network

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ANS MH10.8.2 One degree is equivalent to approximately 110 000 meters, depending upon one’s location on the earth where, because of its spheroid shape, a degree is of greater distance at the equator than at the poles. Degrees can be reduced to minutes (1/60 th of a degree) and then seconds (1/60 th of a minute) to where a second of latitude or longitude is approximately 30.56 meters. Likewise, we can decimally represent a portion of a meter where to six significant digits one can get to a resolution of 0.11 meters. Secondly, many representations of latitude and longitude include either a North / South designation for latitude and an East / West designation for longitude. Alternately, some designations of South latitude and West longitude are differentiated from their North and East counterparts by a “-‐” (minus) prefix. Further, there are 360 degrees of longitude from 180° to -‐180° and 180 degrees of latitude from 90° to -‐90°. Also, the tallest building in 2012 is 828 meters, though plans do exist for structures greater than 1 000 meters in height. Finally, there are locations that exist below sea level, so a minus (-‐) is also required for altitude. Consequently, the format recommended by this standard for Latitude / Longitude / Altitude is xnn.nnnnn/xnnn.nnnnnn/xnnnn is in a range of 5 (intersection of the Prime Meridian with the Equator -‐ n/n/n) to 27 characters (xnn.nnnnn/xnnn.nnnnnn/xnnnn). The “x” value is to permit the inclusion of a “-‐” (minus) prefix for South latitudes and West longitudes. The “-‐” (minus) prefix, “.” (decimal point), and “/” solidus are explicitly encoded. SYSTEMS Copyright © 2012- Q.E.D. Systems
Google maps Input & Output Latitude and Longitude values can be set using the following notations: • Decimal Degrees (DDD) -‐ In this notation, decimal precision is set in the 'degree' coordinate. For example, 49.11675953666N. • Degrees, Minutes, and Seconds (DMS) -‐ In this notation, decimal precision is set in the 'seconds' coordinate. For example, 49 7'20.06"N. • Degrees, Minutes with Decimal Seconds (DMM) -‐ In this notation, decimal precision is set in the 'minutes' coordinate. For example, 49 7.0055722"N. (Here, 20.06 seconds above is divided by 3600 to get the decimal minute value for 20.06 seconds.) SYSTEMS Copyright © 2012- Q.E.D. Systems
Page 1 and 2: SC 31 Report to OGC Craig K.
Page 3 and 4: Types of Standards ! Technology ! S
Page 5 and 6: The State of Standards (continued)
Page 7 and 8: International Activity that Affects
Page 9 and 10: Wireless Communications Standards a
Page 11 and 12: JTC 1/SC 31 (Parent committee)
Page 13 and 14: SC 31/WG 2 Data Content SYSTEMS Cop
Page 15 and 16: SC 31/WG 4 RFID SYSTEMS Copyright
Page 17 and 18: SC 31/WG 4 ISO/IEC DIS 18000-
Page 19 and 20: SC 31/WG 5 Real Time Locating Syste
Page 21 and 22: SC 31/WG 6 Mobile Item Identificati
Page 23 and 24: SC 31/WG 6 Work Item Title Stag
Page 25 and 26: SC 31/WG 7 ISO/IEC 29167-‐1
Page 27 and 28: Peak of Inflated Expectations Visib
Page 29 and 30: With IoT Manufacturing Distributi
Page 31 and 32: ISO/IEC/IEEE 21451-‐1-‐4
Page 33 and 34: Border Crossing Today Customs On Bo
Page 35: ISO/IEC JTC 1/SC 29/WG 11 N123
Page 39 and 40: Thank you!!! Craig K. Harmon, JTC 1

JTC 1/SC 31 relevance to IoT - OGC Network

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