Method of controlling a garment to record activity data

A method performed by a server, the method comprising:

• receiving, from a user electronic device, a representation of a visual symbol located on an outside surface of a garment, wherein the visual symbol comprises a code string identifying the garment that is encoded into the visual symbol;
• establishing, based on the representation of the visual symbol, the identity of the garment;
• and
• transmitting, to the identified garment, an authorisation code to activate a sensor of the garment to record activity data.

A method performed by a user electronic device, the method comprising:

• obtaining an image of a garment, wherein the garment comprises a visual symbol located on an outside surface of the garment, wherein the visual symbol comprises a code string identifying the garment that is encoded into the visual symbol;
• processing the image to generate a representation of the visual symbol;
• and
• transmitting the representation of the visual symbol to a server so as to activate a sensor of the garment identified by the code string to record activity data.

A garment comprising:

• a sensor arranged to monitor the activity of a wearer of the garment;
• a communication unit arranged to receive activity data for the wearer from the sensor and transmit the activity data to an external device;
• and
• at least one marker, the at least one marker comprising a code string identifying the garment encoded into a visual symbol and arranged such that, when imaged by an image capturing device, the at least one marker is useable to control a sensor of the garment identified by the code string to record activity data,
• wherein the communication unit is arranged to receive an authorisation code, the authorisation code being generated according to the at least one marker, and
• wherein the sensor is arranged to be activated to record activity data according to the authorisation code received by the communication unit.