ELECTRONICALLY KEYED DISPENSING SYSTEMS AND RELATED METHODS UTILIZING NEAR FIELD FREQUENCY RESPONSE

摘要

A dispensing system comprises: a refill container having a dispensing interface to dispense material; a plurality of infrared sensors proximally arranged about the dispensing interface to detect the presence of a target; and a controller coupled to the plurality of infrared sensors, the controller initiating a dispensing cycle of the dispensing interface when the plurality of infrared sensors detects the presence of a target in a normal operation mode, the controller initiating an auto-ranging routine to determine an amount of infrared energy to be emitted by the plurality of infrared sensors while in the normal operation mode..