Vehicle information communication system and environment improvement system, and server used therein

An environment improvement system comprising:

• a sensor configured to detect a state of pollution by an environmental pollutant;
• a plurality of vehicles on each of which an environment improvement device configured to remove the environmental pollutant is mounted;
• and
• a server configured to communicate with the plurality of vehicles by using either a first communication mode or a second communication mode,
• the first communication mode being a communication mode in which the server receives and transmits information to and from each of the plurality of vehicles individually,
• the second communication mode being a communication mode in which the server receives and transmits the information to and from a part of the plurality of vehicles and the information is shared among the plurality of vehicles by using vehicle-to-vehicle communication,
• in the second communication mode, the plurality of vehicles sharing the information by using blockchain authentication,
• when a pollution level by the environmental pollutant exceeds a reference value in an area where the sensor is located, the server being configured to cause a vehicle selected from the plurality of vehicles to move to the area, and configured to output a command to execute an environment improvement operation using the environment improvement device.

A server configured to communicate with a plurality of vehicles,

• the server being configured to communicate with the plurality of vehicles by using either a first communication mode or a second communication mode,
• the first communication mode being a communication mode in which the server receives and transmits information to and from each of the plurality of vehicles individually,
• the second communication mode being a communication mode in which the server receives and transmits the information to and from a part of the plurality of vehicles and the information is shared among the plurality of vehicles by using vehicle-to-vehicle communication, wherein
• in the second communication mode, the plurality of vehicles share the information by using blockchain authentication.