METHOD AND SYSTEM FOR REMOTE DIAGNOSIS, CONTROL AND INFORMATION COLLECTION ON THE BASIS OF VARIOUS COMMUNICATION MODES FOR TRANSMISSION OF MESSAGE TO RESOURCE MANAGER

摘要

PROBLEM TO BE SOLVED: To provide a system that makes communication with a machine connected to a network. SOLUTION: The communication with a machine by this invention is conducted by an electronic mail or a direct connation. The electronic mail is transmitted to a service center via the Internet or from the service center to a resource controller and left in a LAN or a WAN for transmission between the machine and the resource controller. The electronic mail message including information relating to a state, an operating state or a function of a monitored and controlled device is transmitted from a computer connected to the device. The device transmits state message and operating state information to the resource controller or the service center on the Internet via a firewall. When the device requires an urgent service, the message is directly sent to the resource controller. In the case of periodic information, the service center manages all resources on an intra-net and transmits information of a prescribed type to the resource controller by using the electronic mail.