Control system, mobile object, server, control method and computer-readable storage medium

A server comprising:

• an update program transmission control unit configured to perform control of transmitting an update program of a mobile object control unit provided to a mobile object to the mobile object;
• a reception information transmission control unit configured to perform control of transmitting reception information, which indicates a communication manner by which the mobile object receives the update program for each update program, to the mobile object;
• and
• a change information transmission control unit configured, when the mobile object has not received both a first update program and a second update program that is received after update by the first update program is executed, to perform control of transmitting information about change of reception information of the first update program to the mobile object.

A control method comprising:

• controlling reception of an update program of a mobile object control unit configured to control a mobile object from a server;
• acquiring reception information indicating a communication manner for receiving the update program from the server for each update program;
• performing control of receiving the update program from the server, based on the reception information;
• controlling update of the mobile object control unit by the update program;
• acquiring information about change of reception information of a first update program when both a first update program and a second update program that is received after update by the first update program is executed have not been received;
• and
• performing control of receiving the first update program based on the information about change acquired in the acquiring.

A control method comprising:

• performing control of transmitting an update program of a mobile object control unit provided to a mobile object to the mobile object;
• performing control of transmitting reception information, which indicates a communication manner by which the mobile object receives the update program for each update program, to the mobile object;
• and
• performing control of transmitting information about change of reception information of a first update program to the mobile object when the mobile object has not received both the first update program and a second update program that is received after update by the first update program is executed.