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Watson Industries, Inc.

DMS-EGP02 Rev A 03/28/2008

DYNAMIC MEASUREMENT SYSTEM

OWNER'S MANUAL

PART NUMBER: DMS-EGP02

GPS Module & Dual Antenna System

WATSON INDUSTRIES, INC.

3041 MELBY ROAD

EAU CLAIRE, WI 54703

Phone: (715) 839-0628

FAX: (715) 839-8248

email: [email protected]

Содержание DMS-EGP02

Страница 1: ...A 03 28 2008 1 DYNAMIC MEASUREMENT SYSTEM OWNER S MANUAL PART NUMBER DMS EGP02 GPS Module Dual Antenna System WATSON INDUSTRIES INC 3041 MELBY ROAD EAU CLAIRE WI 54703 Phone 715 839 0628 FAX 715 839...

Страница 2: ...2 14 Figure 3 Antenna Dimensions 15 7 Warning 15 8 Appendix A 18 Determining and Setting Output Channels 19 Setting Output Format 20 Setting Heading Mode 20 Setting Velocity Mode 21 9 Appendix B 22 10...

Страница 3: ...ion Calibration is achieved by using the maintenance software to store data in non volatile memory within the DMS The DMS EGP02 differs from a standard DMS with the addition of a Dual antenna GPS syst...

Страница 4: ...tellites The Fore antenna is placed meter ahead of the Aft Antenna on a line parallel to the axis of the vehicle Caution The GPS heading accuracy is directly related to the accuracy of the antenna pla...

Страница 5: ...g structure is discussed later in the Interface section of this manual The DMS generates twelve different data items for output X Y and Z rates X Y and Z accelerations Bank Elevation and Heading and F...

Страница 6: ...adjustments to the gyros It is intended for short term use only since leaving biases uncorrected will allow errors to accumulate over time The accumulating bias error will result in small attitude err...

Страница 7: ...e for up to 9 99 g s 7 A six character string representing the Z axis acceleration starting with a or a followed by one digit a decimal point two digits and a space for up to 9 99 g s 8 A six characte...

Страница 8: ...th no detectable effect on the resulting data The other output format available is a binary format In this mode the unit provides generally the same information as the decimal ASCII format but in a co...

Страница 9: ...his command does not require a double space bar at initialization to be in effect There are two output format commands _ for decimal output and for binary See second part of Appendix A for more inform...

Страница 10: ...al data output This allows the system to act as a data acquisition unit for other vehicle information such as engine RPM engine temperature fuel remaining altitude depth or any other important data Th...

Страница 11: ...to 5VDC The pins are as follows a Initialization Resets all angle integrators The unit should be in a non accelerated condition if this command is given Leave pin open if not in use Ground to command...

Страница 12: ...range Bandwidth 20 Hz Environmental Temperature Operating 30 C to 60 C Temperature Storage 55 C to 85 C Vibration Operating 5g rms 20 Hz to 2 kHz Vibration Survival 10g rms 20 Hz to 2 kHz Shock Surviv...

Страница 13: ...A 03 28 2008 13 Figure 1 Up Position Receive from 9 pin connector This is non GPS mode Allows Keyboard commands to be input into the unit Down Position Receive from GPS module This is the GPS mode Ke...

Страница 14: ...d 18 Y Axis Acceleration Analog Output 4 Shorted to pin 6 8 Coast Command 19 Z Axis Acceleration Analog Output 5 Ground 9 Ready 20 Forward Acceleration Analog Output 6 Shorted to pin 4 10 Initializati...

Страница 15: ...Watson Industries Inc DMS EGP02 Rev A 03 28 2008 15 Figure 3 Antenna Dimensions Warning Rough handling dropping or miswiring this unit is likely to cause damage...

Страница 16: ...ny warranty given by Watson Industries are products that have been subject to abuse misuse damage or accident that have been connected installed or adjusted contrary to the instructions furnished by s...

Страница 17: ...628 Fax 715 839 8248 Email support watson gyro com All sensors returned under warranty will be repaired or replaced at the sole option of Watson Industries at no cost to the customer other than shippi...

Страница 18: ...Rate 99 9 s 200 s Corrected Bank Pendulum simulated 179 9 180 Corrected Elevation Pendulum simulated 89 9 180 User Channel 1 9 99 VDC 10 VDC User Channel 2 9 99 VDC 10 VDC User Channel 3 9 99 VDC 10...

Страница 19: ...e 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 will come up one at a time For example Type Y or y to output...

Страница 20: ...e up position so that the unit can receive computer commands Turn on unit Wait for the startup message to appear on display Hit the space bar twice within the first 5 seconds of turn on Sometimes it t...

Страница 21: ...lection the default the next time you power the unit on type in double quote Setting Heading Calibration Hook the unit up to your computer s serial port Use a terminal program to interface with the un...

Страница 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...

Страница 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...

Страница 24: ...rd This word is then shifted left to shift out the sign bit What remains is a signed fractional word with a resolution of 13 bits plus a sign bit DATA STREAM WORD 1 WORD 2 WORD 3 WORD 4 WORD N 0x0D Ca...

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