Diagnostic report for Indigo LPR camera exhibiting image banding. Identifies causes, solutions, and preventative measures. Focus: EMI/RFI interference.
Multimeter, spectrum analyzer, directional antenna (optional)
No. Replacement is recommended.
Refer to the manufacturer's specifications.
Image banding in camera systems can result from several factors. Common causes include electromagnetic interference (EMI) or radio frequency interference (RFI) affecting the camera's sensor or internal circuitry. Signal attenuation in the camera's cabling or power supply fluctuations can also contribute to this issue. Incorrect voltage levels can create artifacts. Baud rate mismatches are not relevant in this context.
The Indigo LPR camera is producing images with visible banding interference.
Ensure the camera system is disconnected from power before performing any inspection or maintenance. Avoid contact with electrical components. Be aware of potential tripping hazards from cables. Follow Safe Handling procedures (unplugging, dry surface).
Regularly inspect camera cabling and connections. Ensure adequate shielding of cables. Implement surge protection and power filtering. Keep the area around the camera clear of potential sources of EMI/RFI. Clean the camera lens and housing with a dry, lint-free cloth to prevent buildup of contaminants. Adhere to the camera manufacturer's recommended operating temperature range (-40C compliance)
Use a spectrum analyzer to identify the source and frequency of any RFI. A directional antenna can help pinpoint the interfering signal. Check if the interference coincides with activation of specific kiosk components (e.g. display backlight). External USB filters may help mitigate power related EMI.