SERVER, UPDATE MANAGEMENT METHOD, NON-TRANSITORY STORAGE MEDIUM, SOFTWARE UPDATE DEVICE, AND SYSTEM INCLUDING SERVER AND SOFTWARE UPDATE DEVICE

摘要

A server (1) includes: a first communication unit (26) configured to perform bidirectional communication with the software update device (11) using a first communication method; a second communication unit (27) configured to transmit information to the software update device (11) using a second communication method different from the first communication method; and a control unit (29) configured to determine whether the first communication unit (26) has received a specific request from the software update device (11) using the first communication method, wherein the second communication unit (27) is configured to provide a notification to the software update device (11) using the second communication method when the control unit (29) determines that the first communication unit (26) has not received the specific request from the software update device (11).