Network System, Device Server, And Network System Control Method

摘要

Using a web browser, a client terminal accesses a web application server on which a web application operates and controls an image input device. A displayed web page from the server has an embedded image input control script that operates on the web browser and controls image input. Under the control of the image input control script, an image acquisition request is sent to the image input device when a specific operation is performed on the displayed web page, and, as a response, an image is acquired from the image input device. Under control of the image input control script, a selection window is displayed for selecting whether or not to stop operation of the image input device when an event changing the web page occurs while such device is operating, and a stop operation request is sent to the image input device when stopping its operation is selected.

主权项

1. A client terminal that accesses, using a web browser, a web application server on which a web application operates, and that controls an image input device, the client terminal comprising:
a display that displays a web page from the web application server, the web page having an embedded image input control script that operates at least on the web browser and controls image input from the image input device; an image acquisition request transmission unit that is controlled by the image input control script to send an image acquisition request to the image input device when a specific operation is performed on the displayed web page; an image acquisition unit that is controlled by the image input control script to acquire an image from the image input device as a response to the image acquisition request; a selection window display that is controlled by the image input control script to display a selection window for selecting whether or not to stop operation of the image input device when a change event that changes the web page occurs while the image input device is operating; and a stop operation request transmission unit that is controlled by the image input control script to send a stop operation request to the image input device when stopping operation of the image input device is selected in the selection window.