Why is the same plate missing when it returns within a few minutes on an older Hikvision camera?
Answered by ANPR AI·Sourced
Short answer
A repeat-plate filter may suppress the second read.
Explanation
The historical IPC-H7 5.5.121 release notes describe a default-enabled filter with a four-minute default and a one-to-five-minute range.
Things to check
- Exact firmware
- Repeat filter
- Time between visits
What to do
For this documented release, adjust the filter to suit return traffic and retest. Verify current firmware separately.
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What to read next
ProductANPR EdgeOn-premise plate recognition that runs on a PC you own and reads plates from ordinary IP cameras.Read GuideConnect an IP camera to ANPRStep-by-step: RTSP streams, snapshots and the no-code Edge setup for the cameras you already have.Read ComparisonANPR camera alternativeWhat a dedicated ANPR camera costs against a standard IP camera plus plate-recognition software.Read
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