To enable to easily communication specifications and a communication mode suitable for manufacturers, vehicle types, vehicle ranks and intended use etc. without replacing a gateway apparatus itself.
In a data collecting apparatus 1, a protocol to be used as an in-vehicle LAN protocol and the detailed specifications of this protocol are set, and a set file including information about the protocol and the detailed specifications are transmitted by radio to a gateway apparatus 2. Then, the gateway apparatus 2 performs gateway operation in accordance with the protocol included in the set file and the detailed specifications of the protocol, and transmits data from an ECU (electronic control unit) received via a network bus 201 etc. to the data collecting apparatus 1. In this way, desired communication specifications can be set by remote control using the data collecting apparatus 1. Further, it is possible to select any one from among seven kinds of communication modes by using the data collecting apparatus 1.
SAITO MASAKI
SUZUKI KAN
Hiroshi Ochi
Sadao Matsumura
Isamu Kakiuchi