FIELD: radio engineering, communication.
SUBSTANCE: communication device comprises: a communication unit in the vicinity connected to the memory; A control unit configured to control the operation of the communication device and a second communication unit configured to communicate with an external device and having a larger communication range than a wireless communication in the vicinity, the control unit controls communication with the external device by the second communication unit, the communication unit in the vicinity Transmits the first data recorded in the memory to an external device in response to receiving a read request from an external device, the communication unit in the vicinity records the second data received from the external device, In memory in response to receiving a recording request from an external device, the communication unit in the vicinity issues a notification to the control unit which is activated in response to receiving said recording request from an external device by wireless communication in the vicinity, and the communication unit in the vicinity does not issue a notification to the control unit and this control unit is not activated in response to receiving a read request from an external device by wireless communication in neighborhood.
EFFECT: increasing the reliability of data transmission.
22 cl, 5 dwg
