Method of operating one or more controllable devices in dependence upon commands received from a mobile device and system controller thereof

A system controller for operating one or more controllable devices in dependence upon commands received from a mobile device, the system controller comprising:

• a first communication interface for receiving a command from the mobile device;
• a second communication interface for receiving a message from a controllable device;
• and
• one or more processors configured to:
• determine whether the mobile device that sent the command is authorized to operate a target controllable device to which the command pertains;
• generate a command identifier for identifying the command, and send an instruction corresponding to the command and including the command identifier to the target controllable device when the mobile device is authorized to operate the target controllable device;
• and
• reply to a pending command identified by a particular command identifier with a response indicating transaction complete when the message from the controllable device acknowledges the particular command identifier.

A system controller for operating one or more controllable devices in dependence upon commands received from a mobile device, the system controller comprising:

• means for receiving a command sent from the mobile device;
• means for determining whether the mobile device is authorized to operate a target controllable device to which the command pertains;
• means for generating a command identifier that identifies the command, and sending an instruction corresponding to the command and including the command identifier to the target controllable device when the mobile device is authorized to operate the target controllable device;
• and
• means for replying to a pending command identified by a particular command identifier with a response indicating transaction complete when receiving a message from one of the controllable devices acknowledging the particular command identifier.