To provide a terminal device for training incorporating a certain initial setting means in consideration of simple operation required by an user.
The plurality of terminal devices for training comprising a laser emitter, a laser receiver, a transceiving antenna, an optical transceiving means and a terminal device performing signal processing, have a program for allowing the terminal device selected first to transfer the optical data to the terminal device selected next, updating the terminal device selected next by transferring, to an ID number "1+1=2", hereinafter, allowing the n-1 th terminal device of the ID number n-1 to transfer the optical data to the n th terminal device, updating the n-th terminal device to an ID number "n-1+1=n" by transferring, and storing the unique ID number successively updated to the last terminal device and the common initial set data in a memory of each terminal device in accompany with the successive transferring of the optical data.
Michito Hiraki
Sanji Tanabe
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