Abstract: An object of the invention is to improve the reliability of a wireless control network management system. Gateway devices for relaying data communication between a monitoring/controlling host connected thereto via a wired network and a plurality of wireless nodes connected thereto via wireless circuit and constituting a wireless network, wherein the gateway device comprises wireless communication means for sending data from the host to at least any one of the wireless nodes, and redirect means for causing the wireless communication means to send the data to one of the wireless nodes and to transfer the data to the other gateway device connected to the wired network.

Abstract: An object of the invention is to improve the reliability of a wireless control network management system. Gateway devices for relaying data communication between a monitoring/controlling host connected thereto via a wired network and a plurality of wireless nodes connected thereto via wireless circuit and constituting a wireless network, wherein the gateway device comprises wireless communication means for sending data from the host to at least any one of the wireless nodes, and redirect means for causing the wireless communication means to send the data to one of the wireless nodes and to transfer the data to the other gateway device connected to the wired network.

Abstract: An object of the present invention is to realize a camera system suitable for remote monitoring. The present invention is made by making improvements to a camera system that transmits camera image data to a network. The camera system includes a camera head including an image sensor and a sensor controller that controls the image sensor; a video signal processing means that performs video signal processing on image data from the image sensor; and a web server which transmits image data from the video signal processing means as the camera image data to the network, receives control data from the network, and controls at least the sensor controller or the video signal processing means.

Abstract: The objects of the present invention are to simplify the construction of the whole electric device system, to avoid cost increase, and to reduce the number of required works even if function updating, performance upgrading, etc. are requested. An electric device system, in which an electric device and a computer system are connected, and an application repository server, which intervenes between the above electric device and the above computer system and is provided with various software program modules as well as provided with panel function modules that construct display functions based on the combination of the above software program modules, is further installed.

Abstract: An object of the present invention is to realize a camera system suitable for remote monitoring.