A device for supporting and moving a load within an area may include a motive construct configured to support the load and move the load to a ground location within the area; a lift mechanism coupled to the motive construct, the lift mechanism being configured to effect movement of the motive construct to a height relative to the ground location; and a remote controller operatively coupled to the device via at least one of a cable connection and a wireless connection, the remote controller being configured to steer the motive construct and/or to control the lift mechanism. The device may further include at least one sensor to detect a characteristic of the load. The device may further include a braking system.

A device for supporting and moving a load within an area may include a motive construct configured to support the load and move the load to a ground location within the area; a lift mechanism coupled to the motive construct, the lift mechanism being configured to effect movement of the motive construct to a height relative to the ground location; and a remote controller operatively coupled to the device via at least one of a cable connection and a wireless connection, the remote controller being configured to steer the motive construct and/or to control the lift mechanism. The device may further include at least one sensor to detect a characteristic of the load. The device may further include a braking system.

A transmission apparatus is a transmission apparatus that generates a pressure wave for transmitting data in drilling mud, and includes a tubular member, a plurality of valves that are provided side by side in an axial direction of the tubular member inside the tubular member, each of which includes a stator including holes for passing the drilling mud, and a rotatable rotor which is provided to overlap the stator and includes blocking portions blocking the holes in the stator according to a rotation position, a motor that rotates the respective rotors, and a control unit that controls the motor 130 so as to rotate and stop the respective rotors at frequencies different from each other, according to data to be transmitted.

A transmission apparatus is a transmission apparatus that generates a pressure wave for transmitting data in drilling mud, and includes a tubular member, a plurality of valves that are provided side by side in an axial direction of the tubular member inside the tubular member, each of which includes a stator including holes for passing the drilling mud, and a rotatable rotor which is provided to overlap the stator and includes blocking portions blocking the holes in the stator according to a rotation position, a motor that rotates the respective rotors, and a control unit that controls the motor 130 so as to rotate and stop the respective rotors at frequencies different from each other, according to data to be transmitted.

A switch assembly and method of using same comprises a switch assembly for operating a power take off unit on a lawn tractor, the switch assembly further includes a housing supporting a selectively locatable activation knob facilitated by an actuation assembly and an internal switch arrangement coupled to a printed circuit board within the housing. The internal switch arrangement comprises a microcontroller and switch for determining the relative position of the selectively locatable activation knob and provides a digital output signal for enabling or disabling a power take off unit based on the digital output signal.

A hand-or voice-operated controller system for a driven loadable construct has a plurality of control circuit receiving inputs from a directional control and connection circuitry for communicating signals from the control circuit to at least one motor disposed on the loadable construct and to which at least one drive wheel disposed on the loadable construct is electrically coupled.

A hand-or voice-operated controller system for a driven loadable construct has a plurality of control circuit receiving inputs from a directional control and connection circuitry for communicating signals from the control circuit to at least one motor disposed on the loadable construct and to which at least one drive wheel disposed on the loadable construct is electrically coupled.

A method and apparatus are disclosed for calibrating a first sensor in a changing operating environment by a calibration process. Sensor data are received from the first sensor and sensor values are received from a known calibrating sensor. A sensor specific model is maintained for the first sensor. Calibration needs are detected by estimating a drift and an error, taking into account a difference of sensor values to the known calibrating sensor and further taking into account a sensor profile of the first sensor. A correction factor or a correction model is estimated to the sensor data using said difference and used for calibrating the sensor. The correction factor or the correction model is derived from the sensor specific model.

A method and apparatus are disclosed for calibrating a first sensor in a changing operating environment by a calibration process. Sensor data are received from the first sensor and sensor values are received from a known calibrating sensor. A sensor specific model is maintained for the first sensor. Calibration needs are detected by estimating a drift and an error, taking into account a difference of sensor values to the known calibrating sensor and further taking into account a sensor profile of the first sensor. A correction factor or a correction model is estimated to the sensor data using said difference and used for calibrating the sensor. The correction factor or the correction model is derived from the sensor specific model.

A method of controlling a battery-powered remote controller to decrease a duty cycle to allow continued operations despite the quantity of the battery is bad. The method determines a drop in voltage of the battery in standby mode as voltage of the battery is being read. When receiving a command to activate a voice function, determining whether the drop in voltage in the standby mode is greater than or equal to a preset value. If the drop is greater than or equal to the preset value, the method then determines whether the drop in voltage falls in a preset range. If the drop falls in the preset range, the method regulates a duty cycle of the pulse signal activating the voice function, and activates the voice function as required. A remote controller and a non-transitory storage medium are also provided.