Abstract:
A radio control for electric devices may include: a containment body provided with at least one button, at least one electronic transmitter configured to transmit a unique code in a direction of the electric devices, and a microprocessor to which generated signals are sent, by pressing the at least one button, that is configured to control the at least one transmitter, and that is configured to determine the unique code. Each time the at least one button is pressed, the unique code may be transmitted by the at least one electronic transmitter at least once at a first frequency and then may be retransmitted at least once at a second frequency different than the first frequency.
Abstract:
A method and an apparatus are provided for connecting with a controlled smart device. The method includes: obtaining wireless communication schemes, each of which allows connecting with the controlled smart device currently; determining a first wireless communication scheme with a highest priority among the wireless communication schemes, according to priorities corresponding respectively to the wireless communication schemes; and sending a connecting request to the controlled smart device, by adopting the first wireless communication scheme with the highest priority.
Abstract:
A remote control for controlling a controllable device, including: an infrared transmitter that transmits information via infrared light; a wireless transceiver that transmits information by wireless communication via radio waves; a receiver that receives, from a user, control information to be transmitted to the controllable device; a wireless communication determination unit configured to determine whether wireless communication between the wireless transceiver and the controllable device is possible; and a control unit configured to select, based on a result of the determination by the wireless communication determination unit, one of the infrared transmitter and the wireless transceiver for transmission of the control information to the controllable device, and cause the selected one of the infrared transmitter and the wireless transceiver to transmit the control information to the controllable device.
Abstract:
A remote control system includes a mobile device and a receiver connected to a control target. The mobile device includes an input unit accepting user's input operation; an operation signal transmission unit wirelessly transmitting an operation signal corresponding to the input operation during the input operation; a frequency switching determination unit determining whether to switch the transmission frequency band from a first frequency band to a second frequency band based on at least any one of a manner of the input operation and a state of wireless communication; and a transmission frequency switching unit switching the transmission frequency band when the frequency switching determination unit determines to switch the transmission frequency band. The receiver includes an operation signal reception unit receiving the operation signal; and a control unit controlling the control target on the basis of the received operation signal.
Abstract:
System for the remote control of at least one electrical household appliance with a first transmitter/receiver and an auxiliary receiver incorporated into the electrical household appliance, and a second transmitter/receiver and an auxiliary transmitter incorporated into a remote control device that includes a screen for displaying information received by and/or transmitted from the remote control device. The system of remote control may use a primary system of short-range communication between the auxiliary transmitter and the auxiliary receiver and a secondary system of long-range communication between the first transmitter/receiver and the second transmitter/receiver, enabling a critical-parameter control command to be sent from the remote control device to the electrical household appliance via the secondary system only once the secondary system is activated, the secondary system then being bidirectional.
Abstract:
A system for wireless transmission of signals is provided. The system includes a mobile operator unit that is operable to transmit signals; and a base unit of a safety-critical device that is operable to receive signals from the mobile operator unit. The mobile operator unit is operable to categorize the signals to be transmitted as safety-relevant control signals and non-critical communication signals. Only the safety-relevant control signals are checked for error-free transmission. The non-critical communication signals are transmitted without error safety checking.
Abstract:
A hand-held device with a sensor for providing a signal indicative of a position of the hand-held device relative to an object surface enables power to the sensor at a first time interval when the hand-held device is indicated to be in a position that is stationary and adjacent relative to the object surface, enables power to the sensor at a second time interval shorter than the first time interval when the hand-held device is indicated to be in a position that is moving and adjacent relative to the object surface, and enables power to the sensor at a third time interval when the hand-held device is determined to be in a position that is removed relative to the object surface.
Abstract:
In a work machine, a communication system is provided, in which, when damage of disconnection or the like of a communication line occurs, desired communication is enabled without requiring manual replacement of the damaged communication line. The communication system is provided in a hydraulic excavator and comprises a vehicle body controller 12 and a monitor controller 13, serving as a first controller coupled to each of a drive-system communication line 10 and an information-system communication line 11. The communication system also comprises an engine controller 14, serving as a second controller coupled to either one of the communication lines 10 and 11. When a damaged part A develops at a portion of a drive-system communication line 10 located between the vehicle body controller 12 and the engine controller 14 and communication between the vehicle body controller 12 and the engine controller 14 becomes impracticable, the communication between the vehicle body controller 12 and the engine controller 14 is made practicable, by detouring the communication through the information and communication line 11 which has not suffered the damage, and through the monitor controller 13.
Abstract:
A hand-held device with a sensor for providing a signal indicative of a position of the hand-held device relative to an object surface enables power to the sensor at a first time interval when the hand-held device is indicated to be in a position that is stationary and adjacent relative to the object surface, enables power to the sensor at a second time interval shorter than the first time interval when the hand-held device is indicated to be in a position that is moving and adjacent relative to the object surface, and enables power to the sensor at a third time interval when the hand-held device is determined to be in a position that is removed relative to the object surface.
Abstract:
A wireless communication system comprises one or more control units operable to transmit control signals, a plurality of actuators responsive to the control signals, and a plurality of sensors operable to transmit sensor data used by the one or more control units in generating the control signals. Each of the sensors, actuators, and one or more control units are located at a fixed position in the system relative to one another. Each of the plurality of sensors and each of the plurality of actuators are coupled to at least one of the one or more control units via a plurality of wireless paths. Each of the plurality of sensors are operable to transmit the sensor data in an assigned time slot to at least one of the one or more control units over a plurality of wireless channels in each of the plurality of wireless paths. The number of channels in each of the plurality of wireless paths is determined based, at least in part, on a worst-case estimate of potential interference, and each of the plurality of sensors is operable to pseudo-randomly switch the plurality of channels over which the sensor data is transmitted.