Control System for Baby Swing and Control Method for Baby Swing
AssigneeJiaxing JinTong Electronics Co., Ltd.
InventorQiang Zhang
Life of this patent
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Abstract
The invention discloses a control system for a baby swing. The control system comprises a driving motor for applying a force and a control device for controlling the driving motor. The control device comprises a gyroscope disposed on a swing arm for detecting an angular velocity of the swing arm when the swing arm passes the lowest point and outputting an angular velocity detection signal; and a control module coupled to an output end of the gyroscope for receiving and responding to the angular velocity detection signal, so as to adjust a duty ratio of the driving motor in energization and change the action time of the driving motor. The control system for the baby swing according to the invention achieves the same swing angle for babies of different weights.
Claims8
A control system for a baby swing, comprising a swing frame (6), a swing bed (8) rotatably connected to the swing frame (6) on both sides through swing arms (7), a driving motor (1) for applying a force, and a control device for controlling the driving motor (1), characterized in that the control device comprises:
- a gyroscope (2) disposed on one swing arm (7) for detecting an angular velocity of the swing arm (7) when the swing arm (7) passes a lowest point and outputting an angular velocity detection signal;
- and a control module (3) coupled to an output end of the gyroscope (2) for receiving and responding to the angular velocity detection signal, so as to adjust a duty ratio of the driving motor (1) in energization and change action time of the driving motor (1).
A control method for a baby swing, characterized by comprising the following steps:
- A. setting a built-in first predetermined value and a built-in second predetermined value of a control module (3), starting a control button (4), and controlling, by the control module (3), a duty ratio of a driving motor (1) in energization to gradually increase according to a starting signal;
- B. comparing the maximum value of an angular velocity detection signal in a single swing period with the first predetermined value, and if the maximum value of the angular velocity detection signal is less than the first predetermined value, increasing, by the control module (3), the duty ratio of the driving motor (1) next time the driving motor is energized according to the angular velocity detection signal;
- C. when the angular velocity detection signal is less than the second predetermined value in the single swing period, controlling, by the control module (3), the driving motor (1) to shut down according to the angular velocity detection signal;
- and
- D. when the angular velocity detection signal is equal to zero in the single swing period, applying, by the control module (3), reverse starting voltage to both ends of the driving motor (1) according to the angular velocity detection signal.
Dependencies are inferred from the claim text.