A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.

An emergency command device comprises: two safety inputs connectable to a control/evaluating unit to receive an input voltage; two safety outputs connectable to the control/evaluating unit; two electrical switching paths respectively extending between the two safety inputs and the two safety outputs; an emergency actuating unit comprising: a manually triggerable actuating element, a background element, and two switches connected to the actuating element and respectively disposed in the two electrical switching paths; a light emitting unit comprising red LEDs to backlight the actuating element and yellow LEDs to backlight the background element; a voltage detector detect an electrical output voltage at one of the two safety outputs; and a flashing circuit arrangement coupled to activate flashing of the yellow LEDs and/or the red LEDs in response to detection by the voltage detector of a drop in the output voltage below a preset or presettable threshold value.

A method of controlling a mobility device and related device including at least one drive component that drives at least one joint component is described. The control method may include executing a control application with an electronic controller to perform: receiving sensor information from sensors corresponding to a state and/or mode of the mobility device; analyzing the sensor information and determining a control mode of operation based on the sensor information; generating a control signal to output an alert via electronic indicators corresponding to the determined control mode; and controlling at least one drive component of the mobility device to selectively configure and modulate at least one joint component in accordance with the determined control mode of operation. Different alerts may be outputted by the electronic indicators depending on the nature or severity of the alert condition, accompanied by respective device control operations in accordance with the alert condition.

A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.

A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.

An emergency command device comprises: two safety inputs connectable to a control/evaluating unit to receive an input voltage; two safety outputs connectable to the control/evaluating unit; two electrical switching paths respectively extending between the two safety inputs and the two safety outputs; an emergency actuating unit comprising: a manually triggerable actuating element, a background element, and two switches connected to the actuating element and respectively disposed in the two electrical switching paths; a light emitting unit comprising red LEDs to backlight the actuating element and yellow LEDs to backlight the background element; a voltage detector detect an electrical output voltage at one of the two safety outputs; and a flashing circuit arrangement coupled to activate flashing of the yellow LEDs and/or the red LEDs in response to detection by the voltage detector of a drop in the output voltage below a preset or presettable threshold value.

A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.

A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.

A method for synchronizing display elements of a plurality of subscribers of a distributed, bus-based control system is proposed. The subscribers comprise a message transmitter and a plurality of message receivers. The message receivers each comprise a respective display element, which can be toggled between a switched-on state and a switched-off state, and a control unit for producing a control signal for toggling the display element from one state to the other. The message transmitter sends a respective current bus message via the bus in defined recurring bus message time intervals. The respective bus message comprises a bus message counter that has a respective value from a defined value range. The counter value is changed in a predefined manner each time when a current bus message is sent. The message receivers receive the respective bus messages via the bus. The control units each evaluate the respective bus message counter in the same manner and take this as a basis for producing the control signal, so that the display elements are toggled between the switched-on state and the switched-off state in sync with one another and with a defined on/off period.