Abstract:
The system includes a headrail, which includes a motor, a gearbox, and one or more tiltable slats. At least one slat includes sliding tracks. The system further includes one or more PV cells movably disposed within the sliding tracks. The PV cells slide in move along the tracks with regard to an amount of sunlight incident on the cells. Methods of operating a solar powered window covering are also disclosed. The methods generally include detecting a tilt of at least one window covering slat. The slat includes one or more PV cells disposed in sliding tracks in the slat, and the tilt indicates an amount of sunlight incident on the cells. The methods also include sliding the PV cells in the tracks with regard to the amount of sunlight incident on the cells.
Abstract:
A system includes multiple lifting devices, where each lifting device includes a drum to draw in or let out a line, and a motor and transmission coupled to the drum to apply a torque thereto. A grouping module groups the lifting devices for synchronized operation in lifting a shared load. A load distribution management module monitors an amount of weight carried by each of the grouped lifting devices and provides feedback to a user to enable more optimal distribution of the shared load amongst the grouped lifting devices.
Abstract:
A system includes multiple lifting devices, where each lifting device includes a drum to draw in or let out a line, and a motor and transmission coupled to the drum to apply a torque thereto. A grouping module groups the lifting devices for synchronized operation in lifting a shared load. A load distribution management module monitors an amount of weight carried by each of the grouped lifting devices and provides feedback to a user to enable more optimal distribution of the shared load amongst the grouped lifting devices.
Abstract:
A solar powered window covering system is disclosed. The system includes a headrail, which includes a motor, a gearbox, and one or more tiltable slats. At least one slat includes sliding tracks. The system further includes one or more PV cells movably disposed within the sliding tracks. The PV cells slide in the tracks with regard to an amount of sunlight incident on the cells. Methods of operating a solar powered window covering are also disclosed. The methods generally include detecting a tilt of at least one window covering slat. The slat includes one or more PV cells disposed in sliding tracks in the slat, and the tilt indicates an amount of sunlight incident on the cells. The methods also include sliding the PV cells in the tracks with regard to the amount of sunlight incident on the cells.
Abstract:
A system includes multiple lifting devices, where each lifting device includes a drum to draw in or let out a line, and a motor and transmission coupled to the drum to apply a torque thereto. A grouping module is provided to group the lifting devices for synchronized operation. A synchronization module monitors an amount of line that is drawn in or let out from each of the lifting devices and, based on the amount, adjusts operating parameters (e.g., position, speed, etc.) of one or more of the lifting devices in the group to substantially synchronize the amount of line drawn in or let out with other lifting devices in the group.
Abstract:
An apparatus includes a drum to draw in or let out a line and a motor and transmission coupled to the drum to apply a torque thereto. A tracking module tracks an actual amount of line let out from the drum. A servo control unit receives the actual amount, compares the actual amount to a desired amount of line to let out from the drum, and generates an error signal reflecting a difference between the actual amount and the desired amount. A modulation module generates, from the error signal, a control signal to control the motor, thereby bringing the actual amount into better alignment with the desired amount.
Abstract:
An automated window system is described herein. The system includes one or more motorized windows and includes both local and cloud-based control facilitated by motors or actuators in each motorized window that are actuated by a controller. Each motorized window further includes a processor with settings stored in memory that direct the controller. Sensors send both local and remote sensor data along with real time weather data to the processor. The processor uses this sensor data to update charts and schedules in memory, then sends commands to the controller based on these updated charts and schedules according to user defined and factory set parameters. Additionally, the motorized windows each have a network device and wireless transmitters enabling connection via a mesh network, the network controlled by one or more mobile devices which receive user input.
Abstract:
In various example embodiments, a low energy electric motor brake is described comprising one or more electronic switches that connect the input wires to an electric motor together, thus shorting out the motor and braking the motor. The electronic switches are separate from the control system, and provide the braking function. This alleviates the motor controllers and other system control units from providing the braking function to the motor. The electronic switches require minimal to no power in order to maintain the brake to the motor. The control unit may be placed in a low power or sleep mode while the electronic switches maintain the brake.
Abstract:
An apparatus includes a drum to draw in or let out a line and a motor and transmission coupled to the drum to apply a torque thereto. An encoder is provided to measure an angular position of the drum. A counter is provided to record a number of rotations of the drum. A locking mechanism automatically prevents rotation of the drum when the drum stops. Using this information, a processor may calculate an amount of line let out from the drum based on the number of rotations of the drum, the angular position of the drum, and a radius of the drum. In certain embodiments, the angular position and/or number of rotations is stored in non-volatile memory so that is can be recovered in the event of a power outage or other significant event.
Abstract:
An apparatus includes a drum to draw in or let out a line and a motor and transmission coupled to the drum to apply a torque thereto. A power sensor measures an amount of current drawn and/or voltage supplied to the motor as the motor applies torque to the line. A processor calculates an amount of weight that is attached to the line based on the amount of power consumed by the motor. Alternatively, if the motor is operated in generator mode, a current sensor may measure an amount of current generated by the motor and the processor may calculate an amount of weight that is attached to the line based at least partly on an amount of current that is generated by the motor.