Komatsu Corporation

Yasushi Tsushimi

Shinpei Kawasaki

Motoi Ishidou

A reader writer (communication device) executes at least one of reading identification information stored in an IC tag and writing the identification information to the IC tag. The reader writer includes: a wireless control circuit that generates output for communication; a temperature sensor (temperature detector) that detects a temperature in an environment in which an RFID chip, balun, filter circuit, power amplifier, and coupler (elements for forming the wireless control circuit) are used; a temperature judging unit that judges whether or not the environment in which the element is used falls within a usable temperature range of the element based on the temperature detected by the temperature sensor; and a wireless power supply controller that suppresses a supply of power to the wireless control circuit when the temperature judging unit judges that the element is not in the environment within the usable temperature range.

Communication device and working vehicle provided with the same

A reader writer (a communication device) executes at least one of reading identification information of an IC tag (an identification component) and writing the identification information to the IC tag. The reader writer includes a CPU board (a control board) that includes CPU (a controller) and a wireless control circuit to output radio waves by a command from the CPU, an antenna that is spaced from the CPU board, and a connection cable that electrically connects the CPU board to the antenna. The CPU board includes a disconnection detector that detects a disconnection of the connection cable, and a transmission controller that interrupts an output from the wireless control circuit to the antenna when the disconnection detector judges that the connection cable is disconnected.

Growing community of inventors

Hiratsuka, Japan

Yasushi Tsushimi