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WATSON INDUSTRIES DMS-EGP01 Owner's manual

Manual is about: GPS Module & Antenna DYNAMIC MEASUREMENT SYSTEM

Summary of DMS-EGP01

  • Page 1

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 1 dynamic measurement system owner's manual part number: dms-egp01 gps module & antenna watson industries, inc. 3035 melby street eau claire, wi 54703 phone: (715) 839-0628 fax: (715) 839-8248 email: support@watson-gyro.Com.

  • Page 2

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 2 table of contents 1. Introduction ........................................................................................................ 3 2. Product description.......................................................................................

  • Page 3: Caution!

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 3 caution! Watson sensors are rugged devices that have been used successfully in a number of harsh environments. The components have been qualified to withstand a mechanical shock of 200g 's or greater, and most enclosures provide an added level of ...

  • Page 4

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 4 installation orientation the connector face of the unit must point in the forward direction. The dms drawing, with wire call outs, is located in figure 1. The dms is a rugged device and will withstand harsh environments. However, due attention nee...

  • Page 5

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 5 the same for every type of dms, but typically takes 4 to 5 seconds. During this time, a message is sent from the unit via the rs-232 serial link. This message gives information about the dms such as the full model number, serial number, and softwa...

  • Page 6

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 6 free mode while in free mode, the dms will output data from the sensors without correction by the references. For example, the bank angle data output in free mode is calculated directly from the x axis rate sensor. In this case, the angle is a dir...

  • Page 7

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 7 3. A six character string representing the elevation angle starting with a “+” or a “-“, followed by two digits, a decimal point, one digit and a space for up to ±89.9 degrees. 4. A six character string representing the heading angle by three digi...

  • Page 8

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 8 the error over-range condition is indicated by the use of a lower case “i” or “r” when the calculated attitude or heading error exceeds the ranges listed above. Internal functions that require these error values are disabled while the condition ex...

  • Page 9

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 9 6. An “!” will reinitialize the unit. Further, the access to initialization is inhibited such that a spacebar command must be sent within 2.5 seconds of the “!” command for initialization to be engaged. This command does not require a double space...

  • Page 10

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 10 analog inputs in an effort to make this system more versatile, the dms allows the user to input analog data that can then be added to the serial data output. This allows the system to act as a data acquisition unit for other vehicle information s...

  • Page 11

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 11 specifications attitude range: bank ±180° range: elevation ±75° resolution: 0.02° binary mode (14 bit) analog scale factor: 18°/v ±10v output accuracy: static ±0.25° * accuracy: dynamic ±0.5% gps heading range: 0° - 360° resolution: 0.02° binary ...

  • Page 12

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 12 f o r w a r d y handle with care delicate instrument caution z y y z x x z watson industries, inc. Www.Watson-gyro.Com made in u.S.A p/n rev pwr s/f s/n: connections / dimensions figure 1 dms-egp01 25 pin male d-sub power/analog output connector ...

  • Page 13

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 13 figure 2 antenna dimensions.

  • Page 14

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 14 warning rough handling, dropping, or miswiring this unit is likely to cause damage. Disclaimer the information contained in this manual is believed to be accurate and reliable; however, it is the user’s responsibility to test and to determine whe...

  • Page 15

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 15 customer service all repairs, calibrations and upgrades are performed at the factory. Before returning any product, please contact watson industries to obtain a returned material authorization number (rma). Return address & contact information wa...

  • Page 16

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 16 appendix a the following outputs are available via the rs-232 serial link. Their full-scale ranges are listed for both decimal and binary format. Inertial output full scale decimal full scale binary time since reset utc 1 hhmmss seconds since res...

  • Page 17

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 17 bit 7 reset bit 6 set checksum error bit 5 set ready bit 4 reset no velocity error bit 3 reset no system error bit 2 set heading error bit 1 set elevation error bit 0 reset no bank error the flag bits contains the following information: bit descr...

  • Page 18

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 18 activating command mode or double spacebar access to commands hook the unit up to your computers serial port. Use hyperterminal program to interface with unit. Turn on unit. Wait for the startup message to appear on display. Hit the space bar twi...

  • Page 19

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 19 to accept channels type 'n' or “n”, then hit space bar output data to resume. To make this channel selection the default the next time you power the unit on type in " (a quote mark) setting output format there are two output formats: decimal outp...

  • Page 20

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 20 typing in ‘5' will bring up this menu: to set to gps ground velocity type ‘1’. This is the mode when using the gps module. To set to analog velocity type ‘2’. This is the normal dms mode (non-gps). Make sure that the proper analog velocity signal...

  • Page 21

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 21 setting altitude correction: activate command mode (see above). To set the velocity mode, type &. This will bring up the menu: typing in ‘6' will bring up this menu: to turn on altitude correction type ‘1’. To shut off altitude correction type ‘2...

  • Page 22

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 22 appendix b sensor test instructions tests within this section have been designed to allow the user to verify the correct operation of the sensor without the use of elaborate test equipment other than a means of accurately observing the outputs. T...

  • Page 23

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 23 b.4 leveled accelerometer test after successful initialization, place the sensor on a level surface, and observe the pitch and roll displacement signals as well as acceleration outputs. The forward, lateral and vertical outputs should correspond ...

  • Page 24

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 24 appendix c binary data format the unit will output up to 6 words at 71.11 frames per second set at 9600 baud. One word per output parameter. Example 1: the unit is seeing these conditions: 2) binary output format: 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 ...

  • Page 25

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 25 shift lower byte left once (to remove 1 bit space between bytes): shift lower & upper bytes left once (to remove 1 bit space a top of high byte): convert from hexadecimal to decimal counts: bank elevation heading x angular rate y angular rate z a...

  • Page 26

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 26 example 2: the unit is seeing these conditions: 2) binary output format: 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 data word msb lsb bit 7 of the msb is set to 1. Bits 6 to 0 of the msb are the upper 7 bits of the data. (sign plus 6 bits of data) bit 7 of ...

  • Page 27

    Watson industries, inc. Dms-egp01 rev a 02/12/2015 27 shift lower & upper bytes left once (to remove 1 bit space a top of high byte): convert from hexadecimal to decimal counts: x accel y accel z accel x angular rate y angular rate z angular rate 0 64616 62392 1636 63076 9008 correct bank, elevation...