Video image sharing system, portable terminal, video image communication adapter, management server, and video image sharing method

A video image communication adapter that transmits video image data from a connected wired camera or wireless camera to a management server via a portable communication service or a public wireless LAN service, the video image communication adapter comprising:

• means for receiving an instruction from a portable terminal;
• at least one of means for receiving video image data from the wired camera on the basis of an instruction from the portable terminal and means for receiving video image data from the wireless camera on the basis of an instruction from the portable terminal;
• and
• means for transmitting the video image data received on the basis of the instruction from the portable terminal to the management server.

A management server that receives video image data from a portable terminal or a video image communication adapter and displays a video image based on the video image data on a connected display terminal, the management server comprising:

• means for receiving at least one of video image data from a built-in camera contained in the portable terminal, video image data from a wired camera connected to the video image communication adapter, and video image data from a wireless camera wirelessly connected to the video image communication adapter;
• means for acquiring positional information from the portable terminal;
• and
• means for transmitting the acquired video image data and positional information to the display terminal.

A method for sharing a video image in a video image sharing system comprising a management server, at least one portable terminal including a built-in camera and communicable with the management server, a video image communication adapter including at least one of a wired camera and a wireless camera to be selected on the basis of an instruction from the portable terminal and communicable with the management server, and a display terminal connected to the management server, the video image sharing method comprising:

• the step of the portable terminal selecting any one of the built-in camera, the wired camera, and the wireless camera as a shooting camera for distributing a moving image to the management server;
• the step of the portable terminal acquiring its own positional information;
• the step of the portable terminal or the video image communication adapter transmitting video image data from the camera selected by the portable terminal to the management server;
• the step of the portable terminal transmitting the positional information of the own portable terminal to the management server;
• the step of the management server receiving the video image data and the positional information transmitted from each of the portable terminals;
• the step of the management server transmitting the video image data and the positional information of the portable terminal to the display terminal;
• and
• the step of the display terminal displaying, on the basis of the video image data and the positional information received from the management server, a position on a map of the portable terminal and a video image based on the portable terminal or the video image data.