Patent ID: 8370469
Filing Date: 2013-02-05
Classification: G03G,H04L

Abstract:
1. A management device configured to be connected to an electronic device and a first terminal through traversing a first network, the management device configured to be connected to a remote management device, the remote management device connected to a second network and the management device connected to the remote management device by traversing the first network and a third network to access the second network, the remote management device being connected to a second terminal through the second network, the management device comprising: a storage unit configured to store therein management item information indicating a management item of the electronic device, first device-status information indicating a device status managed by the management device using the management item, management destination information indicating a management destination of the management item, first reference-destination information indicating a reference destination of the first device-status information, and second reference-destination information indicating a reference destination of second device-status information indicating a device status managed by the remote management device using the management item, all of which are associated with each other; a first acquisition unit configured to acquire an event notification of occurrence of an event that changes the device status managed by the management item from the electronic device, and updates the first device-status information; a transmission unit configured to transmit the event notification and the first reference-destination information to the first terminal and also transmits the event notification to the remote management device when the management destination information indicates the management device and the remote management device as management destinations; a switching unit configured to switch an access to the first reference-destination information to an access to the second reference-destination information upon accepting the access from the first terminal to the first reference-destination information before reference-inhibition instruction information indicating an instruction to inhibit reference to the first device-status information is acquired from the remote management device; and a second acquisition unit configured to issue an acquisition request to the remote management device at a first interval, issues an acquisition request to the remote management device at a second interval shorter than the first interval in response to the transmission from the transmission unit to the first terminal and the remote management device, acquires the reference-inhibition instruction information when the remote management device accepts the access from the second terminal to the second reference-destination information, and acquires the second device-status information updated in response to reception of recovery instruction information when the remote management device receives the recovery instruction information for recovering a device status from the first terminal, to thereby update the first device-status information.