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electronic:Sort-Cell [2018/05/01 17:22]
tony
electronic:Sort-Cell [2018/05/07 14:18] (current)
tony
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 ===== Implementation notes ===== ===== Implementation notes =====
   * I am thinking of minimal complexity hardware, and all the work done by software. ​ So the mechanism would just be required to release one cell at a time down a chute, in either polarity orientation (ie it wouldn'​t worry about which end was which). ​ So the rest of the system would handle cells either way around with regard to positive/​negative terminals.   * I am thinking of minimal complexity hardware, and all the work done by software. ​ So the mechanism would just be required to release one cell at a time down a chute, in either polarity orientation (ie it wouldn'​t worry about which end was which). ​ So the rest of the system would handle cells either way around with regard to positive/​negative terminals.
-  * The feeder mechanism can measure the diameter of the cell to assist with scanning the label around the circumference.+  * The feeder mechanism can measure the diameter of the cell to assist with scanning the label around the circumference.  Probably the easiest way to measure diameter is with a lever arm that the battery passes under.
   * There is perhaps no logical start/end to labels apart from the seam   * There is perhaps no logical start/end to labels apart from the seam
   * The scanning could be done with a linear CCD sensor synced to the battery being rotated, like the old document hand scanners that used a roller to clock the scanner as it was moved across a page.   * The scanning could be done with a linear CCD sensor synced to the battery being rotated, like the old document hand scanners that used a roller to clock the scanner as it was moved across a page.
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   * Charging characteristics would be dangerous to assess unless the cell was already determined to be rechargeable   * Charging characteristics would be dangerous to assess unless the cell was already determined to be rechargeable
   * Pre sorting of leaking batteries would be required as wouldn'​t want leaking battery material throughout the machine. ​ Perhaps liquid or stains on the battery label could be detected.   * Pre sorting of leaking batteries would be required as wouldn'​t want leaking battery material throughout the machine. ​ Perhaps liquid or stains on the battery label could be detected.
 +  * To measure battery health, and discharge batteries a connection needs to be made to either end, with some batteries there needs to be significant pressure (eg a spring) pressing the contact onto the battery to ensure the end-caps contact the internal anode/​cathodes properly. ​ Might need some sort of battery terminal clamp that is opened momentarily to admit the battery, battery contacts can be automatically centred with a lever that adjust for hieght (diameter) of the battery.