FAQ Archive
GPSController FAQs - Page 324
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FAQ
What happens to fleet tracking when GPS jamming occurs and systems switch to BeiDou?
The handoff from GPS to BeiDou isn't seamless - you'll see 'invalid position' flags in your data stream, and speed/heading data can glitch during the switch. Multiple vehicles hitting a jamming zone at once may all show...
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What does 98% BeiDou accuracy under jamming really mean for fleet operations?
The 98% accuracy means BeiDou provided a position fix within its advertised error margin for 98 out of 100 position polls during tests. However, this doesn't guarantee operational reliability - the 2% failure rate create...
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What are the practical implications of GPS signal loss for asset tracking systems?
GPS signal loss creates critical vulnerabilities in tracking systems. Decisions based on degraded INS data can lead to wasted resources, such as dispatching recovery teams to incorrect locations. The growing positional d...
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How accurate is inertial navigation compared to GPS for tracking applications?
Inertial navigation is significantly less accurate than GPS and should be treated as a short-term bridge rather than a replacement. While INS can maintain basic navigation, positional errors can accumulate to hundreds of...
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What is inertial drift and why does it occur in navigation systems?
Inertial drift is the compounding error that occurs when an inertial navigation system operates without GPS correction. Tiny, unavoidable errors in accelerometers (bias errors) and gyroscopes (drift rates) accumulate ove...
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What happens when a GPS device loses satellite signal and switches to inertial navigation?
When GPS signal is lost due to jamming, spoofing, or environmental factors, the device automatically switches to its inertial navigation system (INS). This system uses gyroscopes and accelerometers to estimate position,...
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When should a fleet operator consider redesigning their tracking system architecture?
Redesign becomes necessary when interference is persistent, targeted, and sophisticated enough to spoof multi-band GNSS and corrupt secondary systems. This is when the cost of not knowing true position (from safety fines...
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What operational problems occur when GPS interference affects multiple vessels in a fleet?
At scale, GPS interference causes workflow collapse: dispatchers can't manually verify every position shift, automated ETA predictions become useless, safety alerts flood in based on ghost ships or phantom positions, and...
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Why don't multi-constellation GNSS receivers protect against sophisticated spoofing attacks?
Sophisticated spoofing attacks broadcast false signals across all frequencies and constellations (GPS, GLONASS, Galileo) simultaneously. They fool receivers into locking onto stronger malicious signals, creating a 'stron...
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What is the difference between GPS jamming and spoofing for fleet tracking?
GPS jamming causes a complete loss of position signal, showing up as frozen or vanished asset icons on dashboards with 'GPS Signal Lost' alerts. Spoofing is more dangerous because it provides false but plausible position...
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When should a fleet manager seriously invest in BeiDou-3 B3A technology?
Invest when you have verified, repeated incidents of intentional jamming or spoofing that impact safety or asset recovery, AND the value of the asset or cargo justifies the 3-to-5 times higher hardware and management cos...
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Does the unjammable signal mean my trucks will never lose tracking?
Absolutely not. 'Unjammable' refers specifically to resistance against malicious radio frequency interference. Vehicles can still lose all GNSS signals in tunnels, under dense foliage, or in fortified warehouses, leading...
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