Control system for a child swing

摘要

A control system for a child swing that comprises an amplitude control subsystem configured to use one or more electrical signals from a swing sensor to compare an actual amplitude of the child swing to a pre-set amplitude of the child swing to generate an adjustment signal representing a desired adjustment to the phase of the drive mechanism. The child swing also comprises a phase control subsystem configured to use an electrical signal representative of a phase of the drive mechanism and the adjustment signal to generate a motor drive signal configured to cause the desired adjustment to the phase of the drive mechanism.

主权项

1. A child swing, comprising:
a support frame; a child seat; at least one swing arm coupling the child seat to the support frame; a drive mechanism configured to impart torque to the at least one swing arm so that the child seat moves in an arcuate path; a swing sensor configured to output one or more electrical signals representative of an actual amplitude of the child swing and representative of an actual phase or direction of the at least one swing arm; a sensor configured to output an electrical signal representative of a phase of the drive mechanism; and a control system comprising:
an amplitude control subsystem configured to use the one or more electrical signals from the swing sensor to compare the actual amplitude of the child swing to a pre-set amplitude of the child swing to generate an adjustment signal representing a desired adjustment to the phase of the drive mechanism;a phase control subsystem configured to use the electrical signal representative of a phase of the drive mechanism and the adjustment signal to generate a motor drive signal configured to cause the desired adjustment to the phase of the drive mechanism.