A system for use with an analog DC model train, the system includes a base unit to electronically communicate with a track of the analog DC model train, the base unit having a receiver; one or more microcontrollers; a potentiometer; a digital stepper motor connected to the digital stepper motor and to provide torque to turn the potentiometer; a controller to communicate wirelessly with the receiver, the controller having a control to send a command the base unit to set a first numerical value associated with a position of the digital stepper motor; the first numerical value can be retrieved by the base unit based on commands from the controller to set the position of the digital stepper motor.

A system for use with an analog DC model train, the system includes a base unit to electronically communicate with a track of the analog DC model train, the base unit having a receiver; one or more microcontrollers; a potentiometer; a digital stepper motor connected to the digital stepper motor and to provide torque to turn the potentiometer; a controller to communicate wirelessly with the receiver, the controller having a control to send a command the base unit to set a first numerical value associated with a position of the digital stepper motor; the first numerical value can be retrieved by the base unit based on commands from the controller to set the position of the digital stepper motor.

To suppress unintended rapid acceleration of a vehicle and the like while suppressing a wire length of a feeding system in the entire layout in section-divided feed using pulse width modulation. A clock generation unit included in a feeding device generates an internal clock having a phase aligned based on a reset signal supplied from a higher-level device that controls a vehicle speed of the vehicle, the reset signal being commonly supplied to another feeding device. A pulse width modulation unit counts the internal clock, and generates a pulse having a pulse width (duty ratio) according to an instruction of the vehicle speed from the higher-level device based on the count value. A driver supplies a pulsed drive voltage having the duty ratio, to which the pulse width modulation has been applied by the pulse width modulation unit, to a section allocated to the driver.

To suppress unintended rapid acceleration of a vehicle and the like while suppressing a wire length of a feeding system in the entire layout in section-divided feed using pulse width modulation. A clock generation unit included in a feeding device generates an internal clock having a phase aligned based on a reset signal supplied from a higher-level device that controls a vehicle speed of the vehicle, the reset signal being commonly supplied to another feeding device. A pulse width modulation unit counts the internal clock, and generates a pulse having a pulse width (duty ratio) according to an instruction of the vehicle speed from the higher-level device based on the count value. A driver supplies a pulsed drive voltage having the duty ratio, to which the pulse width modulation has been applied by the pulse width modulation unit, to a section allocated to the driver.

Provided is a model railroad car for dust collection having a structure harmonized with the other scale model, and wherein a centrifugal blower having a size equal to or larger than the existing model railroad car for dust collection can be installed. The model railroad car includes a dust collection nozzle open at the inferior of a vehicle body; a dust collection chamber which is positioned at the middle part of the vehicle body, is in communication with the dust collection nozzle, and is partitioned by a partition wall and a dust collection filter at the front and rear; a centrifugal blower installed horizontally in the front-rear direction of the vehicle body, with a dust collection fan which is a centrifugal fan oriented toward the dust collection filter; and an outlet at the periphery of the centrifugal fan. One or more driving bogie as a running gear can be installed.

Provided is a model railroad car for dust collection having a structure harmonized with the other scale model, and wherein a centrifugal blower having a size equal to or larger than the existing model railroad car for dust collection can be installed. The model railroad car includes a dust collection nozzle open at the inferior of a vehicle body; a dust collection chamber which is positioned at the middle part of the vehicle body, is in communication with the dust collection nozzle, and is partitioned by a partition wall and a dust collection filter at the front and rear; a centrifugal blower installed horizontally in the front-rear direction of the vehicle body, with a dust collection fan which is a centrifugal fan oriented toward the dust collection filter; and an outlet at the periphery of the centrifugal fan. One or more driving bogie as a running gear can be installed.

Certain embodiments may generally relate to smart robotic therapeutic devices. A modular toy may include a multiple detachable carriages. The modular toy may also include a liquid crystal display (LCD) screen mounted on a first carriage of the plurality of carriages. The modular toy may further include a bubble-generation mechanism installed on the first carriage, a container disposed on a second carriage of the plurality of carriages that is attached to the first carriage, and a robotic arm mounted on a third carriage of the plurality of carriages that is attached to the second carriage.

Certain embodiments may generally relate to smart robotic therapeutic devices. A modular toy may include a multiple detachable carriages. The modular toy may also include a liquid crystal display (LCD) screen mounted on a first carriage of the plurality of carriages. The modular toy may further include a bubble-generation mechanism installed on the first carriage, a container disposed on a second carriage of the plurality of carriages that is attached to the first carriage, and a robotic arm mounted on a third carriage of the plurality of carriages that is attached to the second carriage.

A method and an apparatus that improves the motion and sounds of a model locomotive such that they more closely represent or simulate that of a real locomotive. The motion and sounds are changed in such a way that it is more realistic when compared to a real locomotive that is pulling a heavy load.

A method and an apparatus that improves the motion and sounds of a model locomotive such that they more closely represent or simulate that of a real locomotive. The motion and sounds are changed in such a way that it is more realistic when compared to a real locomotive that is pulling a heavy load.