Mitsubishi Electric Corporation

Takao Shindou

Atsushi Murata

Hitoshi Kamasaka

Shinji Kitagami

An access from a server apparatus to a terminal apparatus is made safely and reliably possible without changing the setting of a firewall, etc. The terminal apparatussends instruction inquiries, to inquire of the server apparatusabout existence/absence of a command (an execution instruction) to be executed by the terminal apparatus, in a form of an HTTP request (S). The server apparatussends reply data(an inquiry response) including the command, in the form of an HTTP response to the HTTP request, to the terminal apparatus(S, S) when the command to be executed by the terminal apparatusexists. The terminal apparatusexecutes the command when the reply dataincludes the command.

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Tokyo, Japan

Takao Shindou