Information transmission device, server, and information transmission method

An information transmission device that is provided in an object, the object including one or more devices and a monitoring sensor monitoring each of the one or more devices, the information transmission device comprising:

• an obtainer that obtains, from the monitoring sensor, first detection information indicating that an anomaly is detected in any one of the one or more devices;
• a transmitter that transmits, to an external device, monitoring information including (i) the first detection information and (ii) relevance information,
• the relevance information indicating relevance between the first detection information and second detection information which is obtained from the monitoring sensor and transmitted from the transmitter to the external device prior to the transmission of the first detection information,
• the second detection information indicating that an anomaly is detected in any one of the one or more devices, and relating to the first detection information.