Controlling a network connected lighting device

1. A control device for controlling a lighting and/or environmental-control system over a communication system comprising one or more networks, the lighting and/or environmental-control system comprising one or more lighting devices for emitting light and/or one or more environmental-control devices for providing an environmental-control function, and the control device comprising:

multiple transmitters each for transmitting to the lighting and/or environmental-control system via a different respective interface of the communication system; and

a controller configured to use each of a plurality of the transmitters to transmit an instance of a same control command to the lighting and/or environmental control system via each of a plurality of different paths, each of said instances of the same control command being for controlling the emitted light and/or environmental-control function, and each of said paths comprising a different respective one of the interfaces;

wherein each instance of the control command invokes feedback from the lighting and/or environmental control system to the control device if executed by the lighting and/or environmental-control system;

wherein the controller is configured to compare the paths in dependence on the feedback, and based thereon to select which of the interfaces to use to transmit subsequent control commands to the lighting and/or environmental-control system for controlling the emitted light and/or environmental-control function, to time out if no feedback is received in response to any message, and to ask a user for manual feedback in the event of said time out; and

wherein the feedback comprises confirmation that the instance of the control command was successfully executed by the lighting and/or environmental-control system.

2. The control device of claim 1 , wherein the feedback comprises information relating to the transmission of a respective message over the respective path, said comparison comprising comparing the information received back in response to the transmission of the respective message over two or more of the respective paths.

3. The control device of claim 2 , wherein said information comprises one or more of:

information on a timing of the transmission of the respective message over the respective path,

information on an error rate experienced the transmission of the respective message over the respective path, and/or

information tracing the respective path travelled by the respective message.

4. The control device of claim 1 , wherein the control device is a user terminal, and the control commands are instigated by user in response to user inputs entered through a user interface of the user terminal.

5. The control device of claim 1 , wherein:

in addition to said feedback, the controller is configured to receive additional information from one or more of the interfaces as to an availability of one or more of the interfaces and/or one or more capabilities of one or more of the interfaces, and/or to receive additional information as to one or more capabilities of the lighting and/or environmental-control system; and wherein:

the controller is configured to select which of the interfaces to use to transmit the subsequent control commands to the lighting and/or environmental control system in further dependence on said additional information.

6. The control device of claim 1 , wherein each of the interfaces uses a different respective access technology.

7. The control device of claim 1 , wherein each of the transmitters is a wireless transmitter and each of the respective interfaces is a wireless interface.

8. A system comprising: the control device of claim 1 , and the lighting and/or environmental-control system.

9. A method performed by a system comprising at least a processor, the method for controlling a lighting and/or environmental-control system over a communication system comprising one or more networks, the lighting and/or environmental-control system comprising one or more lighting devices for emitting light and/or one or more environmental control devices for providing an environmental-control function, and the method comprising: transmitting an instance of a same control command to the lighting and/or environmental-control system via each of a plurality of different paths, each of said instances of the same control command being for controlling the emitted light and/or environmental-control function, and each of said paths comprising a different respective interface of the communication system; receiving feedback invoked by one or more of the instances of the control command, wherein each instance of the control command invokes feedback from the lighting and/or environmental-control system to the control device if executed by the lighting and/or environmental-control system, and timing out if no feedback is received in response to any message, and asking a user for manual feedback in the event of said time out; comparing the paths in dependence on the feedback; based on said comparison, selecting which of the interfaces to use to transmit subsequent control commands to the lighting and/or environmental-control system for controlling the emitted light and/or environmental function; and wherein the feedback comprises confirmation that the instance of the control command was successfully executed by the lighting and/or environmental-control system.

10. A computer program for controlling a lighting and/or environmental-control system over a communication system comprising one or more networks, the lighting and/or environmental-control system comprising one or more lighting devices for emitting light and/or one or more environmental-control devices for providing an environmental-control function, and the computer program comprising code embodied on one or more non-transitory computer-readable storage media and configured so as when run on a control device to perform operations of: transmitting an instance of a same control command to the lighting and/or environmental-control system via each of a plurality of different paths, each of said instances of the same control command being for controlling the emitted light and/or environmental-control function, and each of said paths comprising a different respective interface of the communication system; receiving feedback invoked by one or more of the instances of the control command, wherein each instance of the control command invokes feedback from the lighting and/or environmental-control system to the control device if executed by the lighting and/or environmental-control system, and timing out if no feedback is received in response to any message, and asking a user for manual feedback in the event of said time out; comparing the paths in dependence on the feedback; based on said comparison, selecting which of the interfaces to use to transmit subsequent lighting control commands to the lighting and/or environmental-control system for controlling the emitted light and/or environmental-control function; and wherein the feedback comprises confirmation that the instance of the control command was successfully executed by the lighting and/or environmental-control system.