Novatel OM-20000141 user manual Odometer connection, Odometer Requirements

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SPAN Installation

Chapter 2

2.3.10 Odometer connection

The SPAN-IGM provides a wheel sensor input for a Distance Measurement Instrument (DMI) through AUX connector.

If you are using a NovAtel interface cable (part number 01019015):

1.Connect the interface cable to the AUX connector on the SPAN-IGM

2.Connect the wires from the J2 wire bundle to the DMI.

For information about the J2 wire bundle or if you are creating a custom interface cable, refer to Appendix A, Technical Specifications on page 52 for the interface cable and AUX connector pin out.

3.Send the following commands to setup the wheel sensor.

ENCLOSUREWHEELSENSOR ENABLE 1HZ

SETWHEELPARAMETERS ticks circ spacing

The parameters entered in the SETWHEELPARAMETERS command depend on the wheel sensor being used. See the SPAN on OEM6 Firmware Reference Manual (OM-20000144) for more information about this command.

4.Send the following commands to log the wheel sensor data.

LOG TIMEDWHEELDATAB ONNEW

LOG WHEELSIZEB ONCHANGED

2.3.10.1Odometer Requirements

SPAN-IGM is compatible with any wheel sensor meeting the following requirements:

•Output signal range less than or equal to 45 kHz

•Output signal duty cycle is symmetric 40%-60%

•Output signal voltage is between -11 and +15 VDC.

•Input current draw is less than 150mA at 12 VDC. This is the power supply provided by the SPAN-IGM.

•Quadrature, pulse and direction type odometers are compatible

An example of a SPAN-IGM compatible odometer is the CWPTA411 from Kistler (www.kistler.com).

A transducer traditionally fits to the outside of a non-drive wheel. A pulse is then generated from the transducer which is fed directly to the odometer inputs on the interface cable (NovAtel part number 01019015).

Figure 7: Kistler CWPTA411

The CWPTA411 mounts to the wheel lug nuts via adjustable mounting collets. The torsion protection rod, which maintains rotation around the wheel axis, affixes to the vehicle body with suction cups. Refer to the Kistler CWPTA411 user manual for mounting instructions (www.kistler.com).

SPAN-IGM User Manual Rev 2

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Contents OM-20000141 Rev September SPAN-IGMReturn Instructions Proprietary Notice WarrantyTable of Contents Frequently Asked Questions Replacement Parts Figures Tables Contact Information NovAtel Knowledge Base Before Contacting Customer SupportWeee Notice FCC NoticesIndustry Canada CE NoticeActions to Mitigate Lightning Hazards Lightning Protection Installation and Grounding ProcedureWhat is the hazard? Hazard ImpactUSA Primary and Secondary Lightning Protection Ref # DescriptionFundamentals of Gnss + INS IntroductionGnss antenna PC software System ComponentsScope SPAN-IGM Integrated Gnss + INS unitConventions SPAN-IGM Hardware Span InstallationConnector Type Connections Required EquipmentNovAtel Port Purpose SPAN-IGM Cables Use a USB cable to log raw data SPAN-IGM CablesTypical SPAN-IGM Set Up Serial Port Radio Hardware Set UpTypical SPAN-IGM Set Up USB Port Radio Mount the SPAN-IGM Mount the AntennaConnect the Antenna to the SPAN-IGM Connect PowerConnect a Computer to the SPAN-IGM Connect a Computer Using a Serial ConnectionSignal Description a Connect I/O Strobe SignalsConnect a Computer Using a USB Connection O Strobe Signals8 COM3 Serial Port Enable RS-422 serial connectionsEnable the COM3 Serial Port Disable the COM3 Serial PortOdometer Requirements Odometer connectionPin M12 Connector Function J2 Wire Bundle On Cwpt Sensor Software ConfigurationGnss Configuration Span IMU ConfigurationConfigure Span with Connect Off Flashing Slow 1Hz Flashing Fast 1Hz SPAN-IGM LEDsSPAN-IGM LEDs Communicating with the Span System Span OperationChapter Span Operation INS Window in NovAtel ConnectSpan Operation Chapter Real-Time OperationAscii System Start-Up and Alignment TechniquesDual Antenna Alignment Kinematic AlignmentManual Alignment Data Collection Navigation ModeInssolutiongood Solution ParametersVehicle to Span Frame Angular Offsets Calibration Routine  Logging Restriction Important NoticeMeasurement Timing and Frequency Wheel Sensor Update LogicSpan Wheel Sensor Messages Inertial Azimuth Set up a Wheel SensorAzimuth Sources on a Span System Course Over GroundLog Azimuth Source Format Data Collection for Post-ProcessingVariable Lever Arm SPAN-IGM Dual Antenna InstallationConfiguring Align with SPAN-IGM Alignment on a Stationary Vehicle Aided Static Alignment Alignment on a Moving Vessel Aided Transfer AlignmentUnaided Alignment Span Align Attitude UpdatesAutomatic Alignment Mode Automatic Alignment default Span Body Frame Reference Frames Within SpanLocal-Level Frame ENU Span Vehicle Frame Enclosure FrameNovAtel Firmware and Software Firmware Updates and Model UpgradesFirmware Updates Model Upgrades Authorization CodeTypes of Firmware Files Updating or Upgrading Using the WinLoad UtilityTransferring Firmware Files Open a File to Download Using the WinLoad UtilitySearching for Card Updating using SoftLoad CommandsSoftloadsrec S-RECORD Working with S-RecordsXXXXXX,XXXXXX,XXXXXX,XXXXXX,XXXXXX,MODEL,EXPDATE Upgrading Using the Auth CommandUpgrade Procedure SPAN-IGM-A1 Technical Specifications Technical SpecificationsSPAN-IGM-A1 Mechanical Drawings SPAN-IGM-A1 Environmental SpecificationsSPAN-IGM-S1 Data Rates SPAN-IGM-S1 Technical SpecificationsSPAN-IGM-S1 Physical Specifications SPAN-IGM-S1 Gnss PerformanceSPAN-IGM-S1 Mechanical Drawings SPAN-IGM-S1 Environmental SpecificationsAUX Port Pinout SPAN-IGM PortsMain Port Pinout Pin # Label DescriptionUser Port SPAN-IGM Interface CableSPAN-IGM Interface Cable Pin-Out Descriptions MIC PortSPAN-IGM Align Interface Cable Pin-Out Descriptions SPAN-IGM Align Interface CableVarf Dgnd SPAN-IGM Auxiliary Port Interface CableCOM3 Port Pin # LabelsAppendix B Frequently Asked QuestionsPart Description NovAtel Part Replacement PartsAccessories and Options Span SystemIndex Index OM-20000141 Rev September

OM-20000141 specifications

The Novatel OM-20000141 is a high-performance multi-GNSS (Global Navigation Satellite System) receiver designed for various applications including precision agriculture, autonomous vehicles, and surveying. This state-of-the-art device combines cutting-edge technologies to provide accurate and reliable positioning data, making it an indispensable tool for professionals in fields that rely on geolocation.

One of the standout features of the Novatel OM-20000141 is its multi-frequency support, allowing it to receive signals from GPS, GLONASS, Galileo, and BeiDou systems. This capability significantly enhances the accuracy and reliability of positioning information, particularly in challenging environments where signal interference can occur. By utilizing multiple frequencies, the OM-20000141 can mitigate errors caused by atmospheric disturbances and multi-path signals, resulting in improved precision.

In addition to its multi-GNSS capabilities, the receiver incorporates advanced RTK (Real-Time Kinematic) technology, enabling centimeter-level accuracy. This is particularly beneficial for applications that require pinpoint geolocation, such as precision agriculture, where farmers need to optimize crop yields and resource usage. The RTK technology allows users to achieve real-time positioning corrections, making it a vital tool for surveying and construction projects that demand high precision.

The Novatel OM-20000141 also features built-in connectivity options, including Bluetooth and USB interfaces, facilitating seamless integration with other devices and systems. This connectivity is crucial for enabling real-time data sharing and remote monitoring, enhancing the usability of the device in various operational environments.

Robustness is another significant characteristic of the OM-20000141. Designed to withstand harsh conditions, the receiver features a durable housing that protects it from dust, moisture, and extreme temperatures. This resilience ensures that the device operates effectively in all weather conditions, making it suitable for outdoor applications.

Furthermore, the receiver is equipped with intelligent positioning algorithms that optimize performance in urban canyons and dense foliage areas, where traditional GNSS receivers may struggle. By leveraging these algorithms, the OM-20000141 can maintain reliable positioning even in challenging environments.

Overall, the Novatel OM-20000141 stands out as a versatile and reliable GNSS receiver, merging advanced technologies to deliver high accuracy and reliability. Its exceptional features make it an invaluable asset for professionals in various industries, enhancing their ability to achieve precise geolocation and optimize their operations.
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