Please select the most similar patent number from A, B, C and D. Which number is?
Provided are a smart rocking bed and control method thereof; the smart rocking bed comprises a support frame (10), a bed body (20), and a rocking-control device; a mounting position (100) is defined on the support frame (10); the bed body (20) is positioned on the mounting position (100) and is suspended on the support frame (10), and may rock with respect to the support frame (10); the rocking-control device comprises a pulse transformer mechanism (30) which generates electromagnetism when turned on and a magnet mechanism (40) fitted to the pulse transformer mechanism (30); the pulse transformer mechanism (30) is fixed on the mounting position (100); the magnet mechanism (40) is fixed on the bottom of the bed body (20), and may rock back and forth driven by the pulse transformer mechanism (30), thus driving the bed body (20) to rock with respect to the support frame (10). In the smart rocking bed, the pulse transformer speed-regulating energy is converted into mechanical energy and the rock travel when rocking may be intelligently measured and controlled; the invention also has a mute effect and is suitable for infants of different body weights and ages; it facilitates the peaceful sleep of an infant, and the space for the infant to move around is large, making the invention advantageous to the healthy physical and mental development of the infant and reducing the occurrence of bowed legs due to the infant being held for long periods of time.
A: A simulated organ and a control method therefor, the simulated organ comprising a main body bracket, a drive assembly and a flexible sleeve. The drive assembly comprises a drive mechanism and a telescopic linkage rod mechanism; the drive mechanism is provided with a swinging arm which outputs a swinging motion, and the swinging arm is provided so as to swing about a fulcrum. The telescopic linkage rod mechanism is mounted on the swinging arm, and the swinging motion of the swinging arm drives the telescopic movement of the telescopic linkage rod mechanism. The telescopic linkage rod mechanism comprises at least one cross-linkage rod set, each cross-linkage rod set comprising two linkage rods, the two linkage rods being crossingly provided and hinged at an intersection. The drive mechanism outputs a swinging motion by means of the swinging arm, the swinging motion cooperating with the cross-linkage rod set to achieve a telescopic function well, while the swinging of the swinging arm further drives the telescopic linkage rod mechanism to swing in the radial direction of the flexible sleeve, thereby providing users with an enriched experience.
B: The present invention provides a baby rocking bassinet. The baby rocking bassinet comprises a bed compartment, at least two swinging rods, and a U-shaped base. The bed compartment is suspended in the base by means of the swinging rods; the bed compartment can swing along extending direction of a U-shaped space of the base; the bed compartment comprises: a bed board, a push rod motor, a motor cross bar, and bed rails having openings on the two ends; the motor cross bar is provided at the bottom of the bed rails; the extending direction of the motor cross bar is consistent with the extending direction of the U-shaped space of the base; the bottom of the head part of the bed board is pivotedly connected to one end of the push rod motor; the edge of the foot part of the bed board is pivotedly connected to the bed rail; the other end of the push rod motor is pivotedly connected to the motor cross bar. The baby rocking bassinet of the present invention can tilt the bed board to enable an infant to recline, so that posseting can be reduced, and in combination with swinging, the infant can quickly fall asleep while posseting is avoided, saving efforts of a caregiver.
C: Disclosed is a suspension-line electrophoresis tank automatic workpiece swinging system. The system is used for pushing a workpiece that is suspended on a hook to swing to the left and to the right, and comprises a swing pushing mechanism and a control system. The swing pushing mechanism comprises: a first pushing plate for pushing the hook to swing to the right, and a second pushing plate for pushing the hook to swing to the left, wherein the first pushing plate and the second pushing plate are arranged opposite each other; and the first pushing plate is driven by a first cylinder, and the second pushing plate is driven by a second cylinder. The control system comprises a sensor installed on a front side of the swing pushing mechanism, wherein the sensor is used for sensing whether the workpiece is in place. In the present invention, a workpiece is automatically swung in a mechanical mode, thereby ensuring the uniformity of bubbles during a surface treatment of the workpiece and reducing the amount of bubbles. A mechanical reciprocating motion makes the workpiece move stably; and there is no unhooking situation, and the situation where an electrophoretic paint sputters outwards does not occur.
D: Disclosed are a power generation device by converting gravitational potential energy and kinetic energy and method thereof, the power generation device comprising: a wiggler (10), a driver (20), a power generation unit (30) and an energy storage auxiliary device (40). The wiggler (10) comprises a rail (11), a hammer (12) and a traction mechanism, wherein the rail (11) can generate a sliding slope by means of at repeated wiggling motion with one higher end and one lower end under the drive of the driver (20); the hammer (12), under the action of gravitation, repeatedly slides back and forth along the sliding slope in a longitudinal axis direction of the rail (11); and a rotating member (13) of the traction mechanism is driven to rotate by the kinetic energy generated by the sliding of the hammer (12). A kinetic energy input side of the power generation unit (30) can be in contact with the rotating member (13) so as to convert mechanical energy generated by the rotation of the rotating member (13) into electric energy. The energy storage auxiliary device (40) can accumulate kinetic energy generated by the wiggling motion of the rail (11), and then feed back to the wiggler (10), so as to reduce energy consumption by the driver (20) driving the wiggler (10), thereby realizing the target of generating power by using gravitational potential energy and kinetic energy.
Answer: B