TECHNIQUE FOR CONTROLLING EXTERNAL COMMUNICATION OF EMBEDDED DEVICE USING PROXY SERVER

摘要

To more efficiently realize communication of an installed apparatus. [MEANS FOR SOLVING PROBLEMS] An installed apparatus for communication with another device through an external proxy server for proxy of communication control comprises a communication device communicatable with the proxy server, a storage section for storing the state of communication with the another device, an updating section for updating the communication state to the one after control in response to a control request of communication with the another device from a task executed by a central processing unit is normally done in response to the control request when the communication device cannot communicate with the proxy server, a reply section for sending the update result of the communication state to the task in response to the control request, control instruction section for sending an instruction to change the communication state with the another device through the proxy server to the communication state stored in the storage section by using the communication device to the proxy server when the communication device is communicatable with the proxy server.