Electronic device and data-transmission system

A data-transmission system for at least one of monitoring and controlling a state of at least one object in the system, comprising:

• at least one external device belonging to or arranged in, respectively, the at least one object for monitoring and/or controlling the state of the at least one object;
• a server arrangement arranged to form and transmit content data containing at least one of coded settings and data for use by at least one of the at least one external device and the at least one object;
• a reader device for reading machine-readable code and having a data receiver for receiving the content data from the server arrangement and a data transmitter to transmit at least one or settings and data;
• and
• at least one electronic device arrangeable in connection with, respectively, at least one object arrangeable in the system, physically separate from the at least one external device, and comprising:
• a memory arranged to store data received from at least one external device associated with the at least one object;
• a processor coupled to the memory to process the data;
• an output device for displaying machine-readable code containing at least one of the data and data formed from the data received from the at least one external device to be read using the reader device;
• a receiver arranged to receive at least one of the setting and data from the data transmitter of the reader device for controlling at least one of the at least one external device and the at least one object;
• and
• a data-transmission interface for arranging a two-way data-transmission link between the server arrangement and the at least one external device, wherein the electronic device constitutes a user interface for the at least one external device;
• wherein the two-way data-transmission link is arranged through the at least one external device from the server arrangement to the object and takes place through the reader device and the electronic device.