Swing angle controller of electric cradle

Abstract

The invention relates to a swing angle controller of an electric cradle. The swing angle controller comprises a microprogrammed control unit (MCU), a swing angle detection unit, a swing angle regulating switch and an electric motor, wherein the current swing angle of the cradle is obtained by the swing angle detection unit, an expected swing angle of the cradle is obtained by the swing angle regulating switch, a thrust regulating signal is sent to the electric motor according to the difference between the current swing angle of the cradle and the expected swing angle of the cradle, the electric motor is controlled to automatically regulate the thrust, and a voltage conversion unit is arranged in the controller. According to the swing angle controller of the electric cradle, the control accuracy of the swing angle is high; when the swing angle of the cradle is changed, the thrust can be automatically regulated, and the swing angle of the cradle is the same for babies with different weights; and when the cradle is arranged on the slant ground, the swing angle of the cradle is not affected, and is always relative to the angle of the gravity line, and the cradle can swing automatically without external force for starting.

Description

technical field [0001] The invention relates to a baby rocking bed controller, in particular to a swing angle controller of an electric baby rocking bed. Background technique [0002] Most of the existing electric baby cradles (abbreviated as cradles) rely on the thrust of the electric motor to maintain the cradle on the cradle in a single pendulum motion, and the control methods can be roughly divided into the following two types. [0003] The first control method: [0004] In the fixed voltage mode, the voltage applied to the electric motor is different in different swing angle gears. After the gear is selected, the voltage applied to the electric motor is fixed, and the thrust of the electric motor is fixed. . The disadvantage is that after the thrust is fixed, the swing angle of the rocking bed is different for babies of different weights. [0005] The second control method: [0006] Infrared rays are used to detect the swing angle, and multiple sets of infrared emit...

AI Technical Summary

Problems solved by technology

The disadvantage is that when the ground on which the shaker is placed has a certain angle to the horizontal plane, the angles on both sides of the gravity line are different when swinging.

If you want to improve the accuracy of the swing, you must increase the number of infrared transmitting and receiving devices, so the cost will increase

In addition, when this control method starts to swing, it must be pushed manually before it can swing, and it may stop during the swing.

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