Harvest Class Set Up - Sized Fruit Scanning for Size Class Calibration

This process uses fruit that has been packed by a pack line to create crop/variety specific sets of diameter size class ranges in Croptracker that relate most closely to the weight packed sizes of your specific pack line.

The first step is to determine the contiguous size classes and variety you are targetting. For example this is a size set of Fuji apple carton counts size classes.

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Fuji apple harvest class sizes corresponding to carton count pack styles

  Instructions

1. Determine the contiguous size classes and variety you are targetting.

   1. Consult with your pack line operators or storage teams to ensure when there will apples in each size class you need to set up available to scan.

      1. Note this process does not need to happen all at once - sized scans can be taken over several days. Many users will take a few minutes at the end of the packline over a few days as new carton size drops become available in order to get scans of each size.
         
         

2. Once you have located packed fruit in the size range you are targetting, create an HQV event with the variety you are scanning selected in the growing area.

   1. Be sure to add the size class name into the Lot Code of the event as shown in the screenshots below.
      
      

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3. Scan at minimum 100 pieces of sized fruit of this size into the event. This can be in multiple scans. Some user scan trays of packed fruit and some users scan at the drop before the fruit is packed into trays. See examples of each below.
   
   

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   1. Do not scan any other sized apple or variety into this event. If you are targetting 88 Carton Count sized Galas these should be the only apples scanned in this event.

      1. You can optionally gather more data by rotating the same fruit and scanning it again into this same event. This will help Harvest Quality Vision learn how to better identify this sized fruit when it is randomly rotated in the harvest bin.

   2. If you are unable to get as many samples of this size as needed during a single scanning session, you can either return to this event and add more scans at a later date, or create a new event with the same lot code and variety combo.
      
      

4. To gather scanned samples of the rest of the sizes you have identified, create a new HQV event for the each size class and repeat the process - always ensuring the correct variety is selected in the growing area and the size is specified in the Lot code.
   
   

5. Once a full set of sized scans has been completed - get in touch with Croptracker support@croptracker.com and indicate which events are to be used to generate the set of harvest classes.
   
   

6. Croptracker will use these scans to generate a new set of contiguous size classes and will add them to your account for review and further testing.

   1. This whole process can be repeated for more varities as needed.

   2. Croptracker reccommends performing this calibration process when you have adjusted weight classes on your pack line or are scanning new varities. Some users perform this process before starting a new season, or as they adjust their pack lines through later packing months.