background image

 

 

 

Oxford Technical Solutions Ltd 

www.oxts.com 

Page 1 of 22 

 

 

Legal notices 

Information furnished is believed to be accurate and reliable. However, Oxford Technical Solutions 
Limited assumes no responsibility for the consequences of use of such information nor for any 
infringement of patents or other rights of third parties which may result from its use. No licence is 
granted by implication or otherwise under any patent or patent rights of Oxford Technical Solutions 
Limited. Specifications mentioned in this publication are subject to change without notice and do not 
represent a commitment on the part of Oxford Technical Solutions Limited. This publication 
supersedes and replaces all information previously supplied. Oxford Technical Solutions Limited 
products are not authorised for use as critical components in life support devices or systems without 
express written approval of Oxford Technical Solutions Limited. 

All brand names are trademarks of their respective holders. 

The software is provided by the contributors “as is” and any express or implied warranties, including, 
but not limited to, the implied warranties of merchantability and fitness for a particular purpose are 
disclaimed. In no event shall the contributors be liable for any direct, indirect, incidental, special, 
exemplary, or consequential damages (including, but not limited to, procurement of substitute goods 
or services; loss of use, data, or profits; or business interruption) however caused and on any theory 
of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any 
way out of the use of this software, even if advised of the possibility of such damage. 

Copyright notice 

© Copyright 2021, Oxford Technical Solutions. 

Unauthorised use, copying or distribution is not permitted. All brand names are trademarks of their 
respective holders. 

The software also includes software in binary form from: 

Xiph.Org Foundation at xiph.org. Copyright © 2002, Xiph.org Foundation 

TI at software-dl.ti.com. 

Copyright © 2002

–2015, Texas Instruments Incorporated All rights reserved. 

None of the names of the Xiph.org Foundation or Texas Instruments Incorporated, nor the names of 
their contributors may be used to endorse or promote this product or products using this software 
without specific prior written permission. 

Any redistribution of the software must reproduce the above copyright notice, this list of conditions 
and the following disclaimer in the documentation and/or other materials provided with the distribution. 

Revision 

Document Revision: 210326 (See Revision History for detailed information). 

 

 

Summary of Contents for xOEM500

Page 1: ...Hardware Integration Manual xOEM500 and xOEM550 Inertial and GNSS measurement system ...

Page 2: ... no event shall the contributors be liable for any direct indirect incidental special exemplary or consequential damages including but not limited to procurement of substitute goods or services loss of use data or profits or business interruption however caused and on any theory of liability whether in contract strict liability or tort including negligence or otherwise arising in any way out of th...

Page 3: ...ord Technical Solutions Limited for this purpose In no event will Oxford Technical Solutions Limited be liable for any indirect incidental special or consequential damages whether through tort contract or otherwise This warranty is expressly in lieu of all other warranties expressed or implied including without limitation the implied warranties of merchantability or fitness for a particular purpos...

Page 4: ... Hardware description 6 Overview 6 Architecture 7 Model variations 7 Board dimensions 8 Board layout 9 LED definitions 11 Connections 12 Co ordinate frame and origin point 12 Design in 13 Main connector 13 Connector pin out 13 Connector specifications 15 Power 15 PPS 15 Serial 15 Digital IO 15 Antennas 15 Mounting 16 Heat dissipation 19 Power consumption 19 Internal storage 19 Specifications 20 Op...

Page 5: ... origin 12 Figure 8 Connector pin layout 13 Figure 9 xOEM500 clearances and mounting points 17 Figure 10 xOEM550 clearances and mounting points 18 List of tables Table 1 Supplementary documents 5 Table 2 xOEM board descriptions 10 Table 3 GNSS LED states 11 Table 4 Status LED states 11 Table 5 Power LED states 11 Table 6 Direction of axes for zero heading pitch and roll outputs 12 Table 7 Main con...

Page 6: ...act OxTS support or your local representative for any customer service related inquiries Related documents There are separate manuals available for further information on some of the software and communication types mentioned in this manual Table 1 lists related manuals and where to find them Table 1 Supplementary documents Manual Description xNAV user manual User manual covering the full operatio...

Page 7: ...lely intended for system integration and development purposes This product should not be used in an end user application without undergoing regulatory compliance testing as part of another complete product The xNAV systems the enclosed versions of the xOEM systems have passed regulatory compliance testing so there is no reason to believe that the xOEM would affect the outcome of testing when prope...

Page 8: ... 1 xOEM block diagram The xOEMcore houses the 6 axis IMU and the main processor that calculates the navigation solution The ADK platform feeds aiding data configuration files and commands to the xOEMcore it takes raw data RD and navigation data from the xOEMcore writes RD files and sends the navigation data out over serial and Ethernet interfaces Model variations There are two models available in ...

Page 9: ...ical Solutions Ltd www oxts com Page 8 of 22 Board dimensions The outer dimensions of the xOEM500 and xOEM550 are shown in Figure 2 and Figure 3 respectively Figure 2 xOEM500 dimensions Figure 3 xOEM550 dimensions ...

Page 10: ...components labelled for the xOEM500 and xOEM550 are shown in Figure 4 and Figure 5 The included adaptor board a connector breakout for the pin header shown in Figure 6 Table 2 lists details for the corresponding labels Figure 4 Layout of the xOEM500 board set Figure 5 Layout of the xOEM550 board set ...

Page 11: ...s Secondary GNSS receiver primary receiver hidden underneath DC socket 3 Primary antennaconnector Primary antenna connector 5 V 9 pin female serialport 4 Secondary antenna connector Not in view Primary antennaconnector 3 3 V Connector pinheader 5 GNSS LED Secondary antenna connector 3 3 V 6 Status LED Secondary antenna connector 5 V 7 Power LED GNSS LED 8 Main connector female header Status LED 9 ...

Page 12: ...program is running The GNSS receiver has notyet output a valid time position or velocity Red The GNSS receiver has locked on to satellites and has adjusted its clock to valid time the1PPS output will now be valid The strapdown navigator is ready to initialise If the vehicle is travelling faster than the value set for Initialisation speed during configuration then the strapdown navigator will initi...

Page 13: ...uld be made from the measurement origin point shown in Figure 7 The origin point is the same for all xOEM models Figure 7 xOEM co ordinate frame and measurement origin Table 6 lists the directions that the axes should point for zero heading pitch and roll outputs when the default mounting orientation is used Table 6 Direction of axes for zero heading pitch and roll outputs Axis Direction Host axis...

Page 14: ...llow room for the two connectors Alternative mating connectors are available from Samtec or from alternative suppliers All xOEM boardsets come with an adapter board This PCB will mount directly to the interconnect and houses the Ethernet RJ45 socket the EMI filters a DC power socket and a 9 way d type with a configurable pinout Connector pin out Figure 8 shows the pin layout for the main connector...

Page 15: ... configurable 10 Earth Chassis earth signal 11 Trig2_Ext Trigger 2 input output configurable 12 UART1_TX_TX Serial 1 Tx or Serial 1 Tx in RS422 mode 13 Trig1_Ext Trigger 1 input output configurable 14 UART1_RX_RX Serial 1 Rx or Serial 1 Rx in RS422 mode 15 UART2_RX_RX Serial 2 Rx or Serial 1 Rx in RS422 mode 16 WS1_Ext TTL input from odometer 17 UART2_TX_TX Serial 2 Tx or Serial 1 Tx in RS422 mode...

Page 16: ...g a feature known as fast triggers Fast triggers are used when the output rate is higher than the periodic output rate of the INS e g pulse per metre rate is higher than 100 Hz on a system configured to run the navigation engine at 100 Hz The timing accuracy of fast triggers is not as precise as slow triggers The odometer input requires less than 0 8 V for a low pulse and more than 2 4 V for a hig...

Page 17: ... permanent installations Loctite 270 threadlocker is recommended Depending on the installation environment different threadlock may be needed It is recommended that you mount all xOEM products so that the screws go into the mounting points from the top This makes designing mounting points easier as all the mounting points are in the same plane The height of the mounting points should all be within...

Page 18: ...Oxford Technical Solutions Ltd www oxts com Page 17 of 22 Figure 9 xOEM500 clearances and mounting points ...

Page 19: ...Oxford Technical Solutions Ltd www oxts com Page 18 of 22 Figure 10 xOEM550 clearances and mounting points ...

Page 20: ...uld also have heat sinking applied as well as being held in place OxTS recommend using a GapPad to a metal surface below it to achieve this fixing and ideal heat dissipation Power consumption As with other electronic devices the power consumption of the xOEM is affected by the environmental conditions it is operating in and by its power source Tests carried out by OxTS have shown that the best pow...

Page 21: ... m antenna baseline 0 15 1σ 0 06 1σ 0 1 1σ 0 05 1σ Accelerometers Bias stability Linearity Scale factor Range 0 02 mg 0 05 0 01 30 g 0 02 mg 0 05 0 01 30 g Gyros Bias stability Linearity Scale factor Range 3 hr 0 05 0 05 300 s 3 hr 0 05 0 05 300 s Update rate 100 Hz 100 Hz Power 10 31 V dc 6 5 W 10 31 V dc 8 5 W Dimensions 112 x 65 x 28 mm 112 x 65 x 30 1 mm Mass 0 120 kg 0 150 kg Operating temper...

Page 22: ...ined locations such as each wheel position in addition to the INS measurement point Local co ordinates User can configure a local co ordinate grid to output measurements in an X Y Z frame relative to defined axes instead of North East Down relative to global coordinates Surface tilt For automotive testing When test track has a camber incline allows users to measure pitch roll relative to surface W...

Page 23: ...istory Table 10 Revision history Revision Comments 141016 Initial version 150128 Added xOEM550 190510 Updated for v3 xOEM boardset 190628 Updated Specification sheet Accelerometers 191008 Updated BeiDou compatibility and IMU specs 210326 Updated and rebranded throughout ...

Page 24: ...Oxford Technical Solutions Ltd Page 23 of 24 ...

Reviews: