2. Barcode scanning: Barcodes on commodities can be quickly recognized by scanners, thus reducing manual operation and improving checkout speed. In addition, if the barcode is maliciously blocked or destroyed, the system will automatically alarm.
3. Infrared sensor: The self-checkout area may also be equipped with an infrared sensor, which can sense whether there are unscanned goods in the hands of consumers or unauthorized goods in the supermarket entering the self-checkout area.