FAQ Archive
GPSController FAQs - Page 190
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FAQ
What causes IMU sensor drift in vehicle tracking systems?
IMU sensor drift occurs due to tiny, unavoidable measurement errors in acceleration and rotation that accumulate over time. Real-world factors like temperature changes, vehicle vibration, and electromagnetic interference...
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How long can dead reckoning work without GPS signal for fleet vehicles?
For most fleet IMUs, dead reckoning is practical for about 2-3 minutes. After that, cumulative drift makes the position data too unreliable for dispatch decisions or accurate geofencing. Higher-end, carefully calibrated...
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What should be considered when upgrading GPS systems during an ongoing voyage?
Upgrading mid-voyage requires careful testing of data flow integration with existing voyage management systems, charterers, and ports. Old systems often use proprietary data formats, and switching without proper testing...
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Why is using multiple tracking sources important during geopolitical crises?
Using multiple tracking sources (GPS, GLONASS, Galileo, and land-based AIS) provides redundancy that helps detect anomalies and avoid being fooled by spoofing or jamming. Relying on just one system in high-risk zones lea...
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How can GPS tracking systems help avoid port congestion and compliance issues during rerouting?
GPS controllers must integrate with port systems to prevent compliance blackouts. Without this integration, ships may arrive at backup ports only to face berth congestion and fail to send required digital paperwork like...
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Why is dynamic route optimization essential for cargo ships during forced reroutes?
Dynamic route optimization is essential because it accounts for real-time factors like weather conditions, swells, and currents that traditional charts don't show. This prevents ships from being sent into storms on suppo...
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What is the main advantage of a GPS controller over a basic tracker during maritime disruptions like the Strait of Hormuz closure?
A GPS controller functions as a command center rather than just a monitoring tool. It enables immediate rerouting with pre-checked backup routes that account for fuel requirements, port space availability, and contract t...
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Is GPS spoofing only a concern for high-value cargo fleets?
No, GPS spoofing now affects all fleets due to cheap software-defined radios making it accessible. It can target any fleet for petty theft, false insurance claims, or masking side jobs. Any operation depending on trusted...
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What is the required response time for a real-time spoofing alert to be useful?
Operational usefulness collapses after about 90 seconds. For effective fleet management, alerts must arrive in under a minute to allow time for direct driver check-ins or remote immobilization commands before spoofed mov...
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How does GPS spoofing affect ELD compliance and hours-of-service logs?
GPS spoofing can falsify drive time by showing a vehicle as stationary when it's actually operating. This creates compliant-looking logs for drivers who are actually driving, turning a security breach into a regulatory a...
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What are the signs of a GPS spoofing attack on a fleet management dashboard?
GPS spoofing can appear as a vehicle jumping to an illogical location without transit history, moving in a perfectly straight line at constant speed, or having two devices from the same truck reporting different coordina...
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What's the solution to eliminate satellite switching delays?
You need devices that support 'concurrent multi-GNSS' processing, where all constellations are tracked at the same time, which requires modern hardware and eliminates switch delays.
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