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WATSON INDUSTRIES DMS-EGP01, Owner'S Manual

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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: [email protected] 

 
 

 
 

Summary of Contents for DMS-EGP01

Page 1: ...1 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...

Page 2: ...ndix A 16 Activating Command mode or Double Spacebar Access to commands 18 Determining and Setting Output Channels 18 Setting Output Format 19 Setting Heading Mode 19 Setting Velocity Mode 19 Setting...

Page 3: ...enance software to store data in non volatile memory within the DMS The DMS EGP01 differs from a standard DMS with the addition of a GPS antenna and receiver The GPS receiver also provides a vehicle v...

Page 4: ...in degraded attitude accuracy Power Connectors This unit has an internal regulator to allow operation over a wide voltage input range Best operation is obtained at either 12 or 24 VDC although operati...

Page 5: ...erface section that can be used to send data to the user In normal operation the DMS takes data from its internal rate sensors and integrates in a closed loop system with the accelerometers as a long...

Page 6: ...will output sensor data normally unless it receives a control mode command Once a command is received the DMS will send data in response and await the next command Using this mode the user can retriev...

Page 7: ...2 5 05 0 273 4 00 4 01 2 10 4 017 3 CR 1 Bank angle 2 elev angle 3 Head angle 4 X axis rate 5 Y axis rate 6 Z axis rate 7 Forward Velocity 8 9 space space space space space space space The string tran...

Page 8: ...available to the user others are used at the factory for alignment and calibration 1 An R or r will set the outputs analog and serial to their Reference Command modes This will also disable the logic...

Page 9: ...return to operation with the least disturbance to the system All other unspecified characters such as carriage return line feed and space are ignored by the system If there are problems with the syste...

Page 10: ...andled through simple changes in the scale factor stored in the EEPROM in the microprocessor This can be done with a PC and the assistance of the factory The digital signal that the DMS can receive is...

Page 11: ...titude 2 ft Accuracy Latitude Longitude 1 5m rms Environmental Temperature Operating 40 C to 85 C Temperature Storage 55 C to 85 C Vibration Operating 5g rms 20 Hz to 2 KHz Vibration Survival 10g rms...

Page 12: ...k Angle Analog Output 15 Elevation Angle Analog Output 16 Heading Angle Analog Output 17 X Axis Acceleration Analog Output 18 Y Axis Acceleration Analog Output 19 Z Axis Acceleration Analog Output 20...

Page 13: ...Watson Industries Inc DMS EGP01 Rev A 02 12 2015 13 Figure 2 Antenna Dimensions...

Page 14: ...for a particular purpose Excluded from any warranty given by Watson Industries are products that have been subject to abuse misuse damage or accident that have been connected installed or adjusted co...

Page 15: ...elby Street Eau Claire WI 54703 ATTN Service Department Telephone 715 839 0628 Fax 715 839 8248 email support watson gyro com Returning the Product Product shall be packaged making sure there is adequ...

Page 16: ...User Channel 4 9 99 VDC 10 VDC Ground Track 2 Forward Velocity 399 9 Km hr 400 Km hr Latitude 3 89 99999 90 4 bytes Longitude 3 179 99999 180 4 bytes Altitude 4 21500 Feet 21500 Feet 2 Feet count Tem...

Page 17: ...ng fail 1 GPS Velocity fail 2 Not used always zero 3 Reference Command selected 4 GPS enabled 5 Free Mode selected 6 Analog Switches disabled 7 Not used always zero Example The flag channel output in...

Page 18: ...currently active To change which channels are output type this will bring up the menu again Now type 2 to set up channels The following message will appear To proceed type Y or y Now each channel wil...

Page 19: ...mode the GPS antenna must be connected to the DMS To set the heading mode to Relative Heading type 2 This is the normal DMS mode non GPS In this mode the GPS antennas do not need to be connected To ma...

Page 20: ...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 is applied To make this selection the default the n...

Page 21: ...shut off Altitude Correction type 2 To make this selection the default the next time you power the unit on type in a quote mark TYPE IN THE NUMBER OF YOUR SELECTION OR Q TO QUIT 1 ADJUST TIME CONSTANT...

Page 22: ...angular displacement signals Careful note should be taken of the angles indicated in the reference mode The sensor should then be tipped on the pivot into the other stable position and the angle agai...

Page 23: ...the sensor at a 45 angle to the horizontal in pitch only taking care not to move the sensor at an angular rate of more than 100 sec The Forward Lateral and Vertical Acceleration outputs should not cha...

Page 24: ...B is then connected to the LSB as a 16 bit word This word is then shifted left to shift out the 7th bit always set to 1 What remains is a signed fractional word with a resolution of 13 bits plus a sig...

Page 25: ...the data Bank Elevation Heading X angular rate Y angular rate Z angular rate 2728 912 57344 1636 2460 9008 Convert to units counts x scale factor For bank elevation Scale factor is 180 32768 counts Fo...

Page 26: ...resolution of 13 bits plus a sign bit To convert binary data Need split each word into two bytes Remove the most significant bit from each byte Shift lower byte left once to remove 1 bit space between...

Page 27: ...ngular rate Y angular rate Z angular rate 0 920 3144 1636 2460 9008 Convert to units counts x scale factor For Bank Elevation Scale factor is 180 32768 counts For Heading Scale factor is 360 65536 cou...

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