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C-Nav 2050 User Manual

Other manuals for 2050: Hardware Reference Manual
Manual is about: DGNSS Navigation Satellite Systems

Summary of 2050

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    C - - - n a v ® 2 0 0 5 0 g p s p ro d u c t u s e r g u id e e e i i d d u u g g r r e e s s u u t t c c u u d d o o r r p p s s p p g g 0 0 5 5 2 2 0 ® ® v v a a n n c c ver: 1.0e august, 2004 c&c technologies, inc., gps services group, 730 e. Kaliste saloom road, lafayette, la 70508 u.S.A. Http:/...

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    2050user guide table of contents notices ii cocom limits .............................................................................................................Iv contact information .......................................................................................................V chapte...

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    2050user guide notices 2050 gps products user guide c&c p/n 5250001 revision e august 2004 serial number: date delivered: copyright  2004 by navcom technology, inc. And c&c technologies, inc. All rights reserved. No part of this work or the computer programs described herein may be reproduced or st...

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    2050user guide limited warranty navcom / c&c. Warrants that its products will be free from defects in workmanship at the time of delivery. Under this limited warranty parts found to be defective or defects in workmanship will be repaired or replaced at the discretion of navcom technology, inc., at n...

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    2050user guide global positioning system selective availability (s/a code) was disabled on 2 nd may 2000 at 04:05 utc. The united states government has stated that present gps users do so at their own risk. The us government may at any time end or change operation of these satellites without warning...

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    2050user guide contact information if you have a problem and cannot find the information you need during installation or operation of the c-nav gps system product or documentation, contact c&c technologies, inc. C-nav support group. The contact information is as follows:- phone: (+1) 337-261-0660 us...

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    2050user guide chapter 1 introduction the 2050 gps sensor delivers unmatched accuracy to the precise positioning community who need a cost-effective, high performance gps sensor. These unique receivers use the starfire network, navcom’s worldwide differential gps system, for instant decimeter level ...

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    2050user guide integrated gps and inmarsat band antenna the all-in-one housing incorporates our compact gps antenna with excellent tracking performance and a stable phase center for gps l1 and l2. The robust housing assembly features a standard 5/8” bsw thread for mounting directly to a surveyor’s p...

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    2050user guide included items 2050 gps sensor either (2050g c&c p/n 025g001-0) or (2050m c&c p/n 025m001-0) compact l1/l2 tri-mode gps antenna (c&c p/n 8250001-0) 12 ft gps antenna cable (c&c p/n 4250001-12) lemo 4-pin external power cable (c&c p/n 4250005-10) lemo 7 pin to db9s data communications ...

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    2050user guide applications the 2050 gps sensors meet the needs of a large number of applications including, but not limited to: land survey / gis asset location hydrographic survey photogrammetric survey machine control railway, ship and aircraft precise location unique features the 2050 gps sensor...

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    2050user guide gps performance the nct-2000d gps engine at the heart of the 2050 incorporates several patented innovations. The receiver provides more than 50% signal to noise ratio advantage over competing technologies. The benefit to the user is improved real time positioning. Independent tests ha...

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    2050user guide chapter 2 interfacing this chapter details the 2050 gps sensor connectors and status display. Appropriate sources of electrical power, and how to interface the communication ports. Electrical power the electrical power input comprises a 4-pin lemo female connector located on the botto...

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    2050user guide note – voltages less than 10vdc will shut the unit down. When power is restored, the on switch will need to be held down for more than 3 seconds. Voltages in excess of 30vdc will damage the unit. It is extremely important to ensure that the power supply is well conditioned with surge ...

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    2050user guide figure 2: 2050 front view figure 3: 2050m only back view 2-9.

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    2050user guide figure 4: 6ft serial cable c&c p/n 4250003-6 note – pin 5 should connect to shield of cable at both ends. Indicator panel figure 5: 2050 indicator panel the indicator panel provides the on/off (i/o) switch and a quick view of the status of the 2050 gps sensor, corrections source & typ...

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    2050user guide link leds note – the link lights are software configurable via the appropriate nct proprietary command. Because of the numerous scenarios available for the link light, only the factory default configuration [rover mode] is discussed. Link status command mode repeating red to amber to ...

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    2050user guide gps leds gps status power is off power is on. No satellites tracked tracking satellites, position not available yet non-differential positioning code based differential positioning dual frequency phase positioning table 5: gps light indication note – the gps leds will blink at the pvt...

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    2050user guide can bus/event the 2050m also employs can bus technology. Can bus is a balanced (differential) 2-wire interface, and is iso11898 -24v compliant. The can interface uses an asynchronous transmission scheme. This interface employs a serial binary interchange and is widely used in the auto...

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    2050user guide chapter 3 installation this chapter provides guidance on how the hardware should be installed for optimum performance. Tri-mode antenna the antenna is fitted with a 5/8 inch bsw threaded mount with a depth of 16mm (0.63 inch). This should be used as the primary means of mounting the a...

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    2050user guide gps sensor the 2050 gps sensor can be mounted to a flat surface using the four screw slots shown in figure 7. In environments with high vibration, shock absorbers suitable for 1.8kg (4lbs) should be considered. Figure 7: sf-2050 base plate dimensions the 2050 can be installed in a bac...

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    2050user guide communication ports connect the lemo 7-pin end of the serial cable (c&c p/n 4250003-6) to com 2 (factory default control port) connector of the 2050. Connect the db9s end to your controlling device. Note - that some devices may require an additional adaptor. Use of the dual data inter...

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    2050user guide gps antenna connector the connector used on the 2050 is a tnc female, labeled “gps ant” on the front panel of the sensor as shown in figure 2. Note – the center pin of the tnc connector carries a voltage of 4.4 vdc (nominally), which is used to power the preamplifier in the gps antenn...

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    2050user guide chapter 4 configuration the 2050 gps sensors have a rich interface and detailed control language, which allows each unit to be tailored specifically to the required application. Factory default settings by factory default, com 2 is designated as the control port. The control port mana...

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    2050user guide • 44 packed almanac: this message provides data corresponding to each satellite in the gps constellation. This information includes gps week number of almanac collected, gps time of week [in seconds] that almanac was collected, almanac reference week, almanac reference time, almanac s...

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    2050user guide chapter 5 safety instructions the 2050 gps sensor is designed for precise navigation and positioning using the global positioning system. Users must be familiar with the use of portable gps equipment, the limitations thereof and these safety instructions prior to use of the equipment....

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    2050user guide safety first the owner of this equipment must ensure that all users are properly trained prior to using the equipment and are aware of the potential hazards and how to avoid them. Other manufacturer’s equipment must be used in accordance with the safety instructions issued by the manu...

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    2050user guide appendix a: gps sensor technical specifications the technical specifications of this unit are detailed below and is constantly improving, and updating by our technology improvement process and engineering effort. 2050g and 2050m these gps sensors are fitted with an internal lithium co...

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    2050user guide measurement performance • real-time starfire dgps accuracy: position (h): position (v): velocity: 0.01 m/s • pseudo-range measurement precision (rms): raw c/a code : 20cm @ 42 db-hz raw carrier phase noise: l1: 0.95 mm @ 42 db-hz l2: 0.85 mm @ 42 db-hz • user programmable output rates...

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    2050user guide connector assignments •data interfaces: 2 serial ports; from 1200 bps to 115.2 kbps can bus i/f (2050m only) lemo event marker i/p (2050m only) lemo 1pps (2050m only) bnc input/output data messages • nct proprietary data: pvt raw measurement satellite messages nav quality receiver com...

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    2050user guide appendix b:gps antenna technical specifications the standard antenna supplied with the 2050 gps sensor is capable of tri-frequency reception. L1+l, l2 gps antenna 1525-1585 mhz gps l1 plus inmarsat l band 1217-1237 mhz gps l2 polarization right hand circular (rhcp) finish fluid resist...

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    2050user guide designed to do-160d standard figure 9: tri-mode antenna dimensions note – in order to achieve the greatest level of accuracy, the absolute phase center values must be incorporated into your processing. B-28.

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    2050user guide appendix c:global corrected gps (gcgps) description the starfire™ network is a global system for the distribution of gps corrections giving the user the ability to measure his position anywhere in the world with exceptional reliability and unprecedented decimeter accuracy. Because the...

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    2050user guide infrastructure the system utilizes the gps satellite system, l-band communication satellites, and a worldwide network of reference stations to deliver real-time high precision positioning. To provide this unique service, a global network of dual-frequency reference stations, which con...

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    2050user guide reliability the entire system meets or exceeds a target availability of 99.9%. To achieve this, every part of the infrastructure has a built-in back-up system. All the reference stations are built with duplicate receivers, processors and communication interfaces, which switch automati...

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    2050user guide how to access the c-nav ® / starfire  service starfire  is a subscription service. The user pays a subscription, which licenses the use of the service for a predetermined period of time. Subscriptions can be purchased for quarterly, biannual or annual periods and are available via a...

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    2050user guide to: c&c technologies inc. Att: c-nav division 730 east kaliste saloom lafayette, louisiana, 70508, usa fax: +1 337 261-0192 tel: +1 337 261-0660 email: cnav.Support@cctechnol.Com from: tel: fax: e-mail address: c&c job no. Please check items and fill out all information and dates for ...

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    2050user guide c-35.

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    2050user guide appendix d: nmea data output message formats c-nav[2050] gps receiver communicates via an rs232 serial interface and provides national marine electronics association (nmea 0183) compatible, ascii text sentence, messages. This appendix only describes the nmea 0183 sentences that are pr...

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    2050user guide address field an address field is the first field in a sentence and follows the "$" delimiter, it serves to define the message. Characters within the address field are limited to digits and upper case letters. The address field may not be a null field. Only sentences with the followin...

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    2050user guide data field data fields contain data associated with the sentence identifier code. The format of the data field is determined by the sentence identifier code format value which for the c-nav gps receiver and the cnc d.U. Are as follows:- [address field] [data field information] talker ...

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    2050user guide d.1 alm nmea sentence gps almanac data the alm sentence provides gps week number, satellite health and the complete almanac data for one satellite. Multiple messages may be transmitted for each satellite. Example: $gpalm,32,1,01,1273,00,2a53,7b,1845,fd59,a10c1b,75d0a3,bb4c39,0fad97,16...

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    2050user guide d.2 gga nmea sentence global positioning system fix data the gga sentence contains the utc time, position, and fix related data. Example: $gpgga,124212.00,2948.245862,n,09533.528692,w,2,08,1.1,34.692,m,-25.924,m,9.0,0000*4d field description 1 utc time of position fix in hhmmss.Ss for...

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    2050user guide the gga sentence, field 14 is used as the c-nav gps receiver reference identification correction source being used. The format is a four digit integer number i.E.: xxyy where: xx is the downlink l-band communication satellite beam in use yy is the gps correction signal mode/type being...

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    2050user guide d.3 gll nmea sentence gps latitude and longitude data the gll sentence specifies the position fix, time of position fix, and status. Example: $gpgll,2948.24612,n,09533.52868,w,134126.00,a*1c field description 1 latitude in ddmm.Mmmmm format (5 decimal places) 2 direction of latitude n...

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    2050user guide d.4 gsa nmea sentence gps mode, satellites used for navigation, and dop data the gsa sentence identifies the gps position fix modes, the sv’s used for navigation, and the dop values for the position fix. Example: $gpgsa,a,3,04,05,07,09,10,17,24,30,,,,,2.5,1.1,2.2*38 field description ...

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    2050user guide d.5 gst nmea sentence gps satellites position error statistics (raim compliance) the gst sentence is used to support receiver autonomous integrity monitoring (raim). The data is determined from ‘statistical analysis’ of the residuals following the c-nav gps receiver computation of a p...

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    2050user guide the error ellipse is centered on the least squares computed position and is defined by the sigma max and sigma min. It bounds the 39.4% confidence region (ie; 1 sigma standard deviation – dual variate value). The following diagram illustrates the horizontal error ellipse values provid...

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    2050user guide d.6 rmc nmea sentence gps recommended minimum specific data the rmc sentence identifies the utc time, status, position, speed over ground (sog), course over ground (cog) utc date, and magnetic variation of the position fix. Example: $gprmc,235800.00,a,2948.24627,n,09533.52843,w,0.01,0...

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    2050user guide d.7 vtg nmea sentence gps velocity, track made good and ground speed data the vtg sentence identifies the course over ground (cog) and the speed over ground (sog). Example: $gpvtg,026.6,t,,m,0.01,n,0.02,k,d*61 field description 1 course over ground (cog), in degrees from true north 2 ...

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    2050user guide d.8 zda nmea sentence gps utc date & time data the zda sentence identifies the utc time, the utc date, the local time zone number, and the local time zone minutes. Example: $gpzda,124215,02,06,2004,00,00*4b field description 1 utc time in hhmmss.Ss format 2 utc day 3 utc month 4 utc y...

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    2050user guide appendix e: starfire l-band correction signal selection the c-nav[2050] gps receiver can obtain the c-nav global corrected gps (gcgps) subscription service signals from three (3) separate and independent geo-stationary communication satellites. While the satellite based augmentation s...

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    2050user guide appendix f: how to log raw gps ‘binary’ data from a c-nav[2050] unit c-nav raw gps 'binary' data can easily be recorded using the starutil application on the windows computer that is connected to the 'control port' of the c-nav[2050] unit. How to record raw gps 'binary' data from the ...

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    2050user guide c-54.

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    2050user guide enter a ‘filename’ using the actual c-nav[2050] serial number with an extension of .Dat c-55.

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    2050user guide c-57.

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    2050user guide this ‘correction age’ is setup for c-nav rtg corrections. Set to a lower value if using ‘external’ rtcm correction input mode. C-58.

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    2050user guide select the nmea data output baud rate required for your nav or dp system. This is the com1 (auxillary) rs-232 connection on the front of the c-nav[2050] unit. C-59.

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    2050user guide connect to ms-windows computer running the starutil application. ( port b ) connect to nav or dp system for nmea data messages. ( port a ) external 3 rd party correction input option. C-60

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    2050user guide glossary .Yym files see meteorological files (where yy = two digit year data was collected). .Yyn files see navigation files (where yy = two digit year data was collected). .Yyo files see observation files (where yy = two digit year data was collected). Almanac files an almanac file c...

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    2050user guide civilian code see coarse acquisition code. Coarse acquisition code (c/a or civilian code) the pseudo-random code generated by gps satellites. It is intended for civilian use and the accuracy of readings using this code can be degraded if selective availability (s/a) is introduced by t...

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    2050user guide ellipsoid a mathematical figure approximating the earth’s surface, generated by rotating an ellipse on its minor axis. Gps positions are computed relative to the wgs-84 ellipsoid. An ellipsoid has a smooth surface, which does not match the earth’s geoidal surface closely, so gps altit...

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    2050user guide lat see latitude. Latitude (lat) the north/south component of the coordinate of a point on the surface on the earth; expressed in angular measurement from the plane of the equator to a line from the center of the earth to the point of interest. Often abbreviated as lat. Led acronym fo...

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    2050user guide pdop mask the highest pdop value at which a receiver computes positions. Phase center the point in an antenna where the gps signal from the satellites is received. The height above ground of the phase center must be measured accurately to ensure accurate gps readings. The phase center...

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    2050user guide rcp a navcom technology, inc. Proprietary processing technique in which carrier phase measurements, free of ionospheric and troposphere effects are used for navigation. Real-time kinematic (rtk) a gps system that yields very accurate 3d position fixes immediately in real-time. The bas...

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    2050user guide glossary-67 starfire  a set of real-time global orbit and clock corrections for gps satellites. Starfire equipped receivers are capable of real-time decimeter positioning (see appendix b). Spread spectrum radio (ssr) a radio that uses wide band, noise like (pseudo-noise) signals tha...