| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system and a communication method that can appropriately exchange data even if a communication state changes between a mobile object and an external device that are exchanging the data.SOLUTION: A communication system communicates a group of data including multiple types of vehicle data between an on-vehicle communication device 21 mounted on a vehicle and a first service server outside the vehicle via a communication line. The communication system comprises: a transmission time calculation unit 228 that calculates the transmission rate of the communication line on the basis of the transmission state of the vehicle data via the communication line; a data editing unit 222 that adjusts the amounts of the respective pieces of vehicle data forming the data group to the amounts of data corresponding to the calculated transmission rate respectively, and generates a communication object data group on the basis of the data with the adjusted amounts of data; and a data transmission unit 227 that transmits the data group generated by the data editing unit 222 via the communication line. |
