There is a software bug on the IMU-KVH1750 that can intermittently trigger bad health statuses on the IMU gyros.
The bad health status results in a loss of all INS functionality and causes the SPAN system to reset.
IMU-KVH1750 – units shipped before September 6, 2016 with serial numbers starting from 1510k013
Affected Firmware Versions:
ICB DSP Rev D Version 4.03
ICB FPGA Rev: 0x0a
A software bug has been identified on the IMU-KVH1750 in which the gyro health status is being erroneously flagged as bad. The unhealthy status flag will cause all INS functionality to be lost and initiate an immediate SPAN system reset. The issue is intermittent as some IMUs may fail out of factory, or may be exacerbated when placed in strong magnetic conditions. The root cause, as identified by KVH, is magnetometer data uncalibrated for the KVH1750 is exceeding error thresholds and triggering incorrect gyro status failures.
A field-upgradable firmware has been provided by KVH and has been verified by NovAtel. The firmware files, instructions, and Windows PC loader program are available at the following link: ftp://email@example.com/outgoing/support/ServiceBulletins/KVH_FirmwareUpdate.zip. A direct RS-422 serial connection to the IMU capable of 921600 baud is required for the firmware load.
Affected customers have the option to load the new firmware by either using the instructions provided or via RMA through NovAtel’s support channel. Units with serial numbers before 1510k013 are not affected by this software issue and cannot be updated with the new firmware.
New Firmware Versions:
ISB DSB Rev E Version 4.14
ICB FPGA Rev: 0x0b
Signal Interference: Detection and Mitigation Free 60-Minute Webinar
Date: Thursday, February 2, 2017
Time: 1 p.m. EST / 10 a.m. PST / 7 p.m. CET
As the number of GNSS signals being tracked increases, so does the potential for interference to dismiss the performance gains of using those additional signals.
To maximize performance and efficiency, prepared PNT users need their equipment to be able to detect when interference is present and mitigate it.
Developers, integrators and users need mitigation tools to protect and preserve GNSS measurement quality, maintaining high-quality multi-frequency multi-constellation positioning performance, even in challenging RF environments. This is essential particularly on the integration journey, especially during prototyping and when encountering unforeseen interference events in field testing, in order to produce fully successful integrated products.
The one-hour webinar also will include a follow-up Q&A session with the speakers.
Speakers: Patrick Casiano
Applied Technology Group, NovAtel
Casiano has responsibility for NovAtel’s Applied Technology Group with a mandate to test and evaluate the strengths of products, both proprietary and competing, through tests in vertical segment-specific use contexts. He has led the development of unique projects on single-board computing platforms and integration of mobile IP technology for remote monitoring; streamlined recurring test methodology templates; and applied user experience and customer principles to create specific targeted content to customers in particular phases of their product integration. He has worked at NovAtel since 2003 as applications engineer and technology adoption manager prior to his current position.
More speakers TBA.
Moderator: Alan Cameron
Editor-in-Chief and Publisher, GPS World Cameron is editor-in-chief and publisher of GPS World magazine, where he has worked since 2000. He also writes the monthly GNSS Design & Test newsletter and the Wide Awake blog.
Below you will find details from the Dec 19 – Galileo Dawn of a New Age of GNSS Service Webinar.
Panellists include a long-time leader in Europe’s GNSS user equipment industry and technical and policy experts from the three organisations responsible for creation of the Galileo GNSS and the roll-out of its services.
- Jérémie Godet is head of sector for Galileo Implementation at the European Commission.
- Marco Lisi serves as the GNSS services engineering manager at the European Space Agency (ESA) in the Directorate of Galileo Program and Navigation Related Activities.
- Fiammetta Diani is deputy head of market development at the European GNSS Agency.
- Peter Grognard is the CEO of Thales Alenia Space Leuven, Belgium.
Demoz Gebre-Egziabher is on the faculty of aerospace engineering & mechanics department at University of Minnesota-Twin Cities, USA where teaches and conducts PNT-related research.
Follow the link to watch the video: