摘要:
The communication system according to the present invention is made up of: a connected communication terminal (1) to which communication is requested; a connecting communication terminal (3) that requests a communication with the connected communication terminal (1); a session management server (4) that manages sessions between the communication terminals; a trigger server (5) that transmits, to the connected communication server (1), the request made by the session management server (4); and routers (6 and 7) that relay between the connecting communication terminal (3) and the connected communication terminal (1), and a network (2). In the system, the connected communication terminal (1) holds a permission list (L) that is a list of communication terminals to which connection is permitted, and the session management server (4) judges, with reference to the permission list (L), whether or not the communication between the connected communication terminal (1) and the connecting communication terminal (3) is permitted.
摘要:
The communication system according to the present invention is made up of: a connected communication terminal (1) to which communication is requested; a connecting communication terminal (3) that requests a communication with the connected communication terminal (1); a session management server (4) that manages sessions between the communication terminals; a trigger server (5) that transmits, to the connected communication server (1), the request made by the session management server (4); and routers (6 and 7) that relay between the connecting communication terminal (3) and the connected communication terminal (1), and a network (2). In the system, the connected communication terminal (1) holds a permission list (L) that is a list of communication terminals to which connection is permitted, and the session management server (4) judges, with reference to the permission list (L), whether or not the communication between the connected communication terminal (1) and the connecting communication terminal (3) is permitted.
摘要:
The present invention provides a communication network system in which communication can be securely performed via a global network from an existing terminal apparatus to an existing device connected to a local network without needing a special gateway function in a router and without performing a special setting in the router. In the communication network system (10), a communication relay client (202) performs polling on a management center network (1) via a NAT router (204); a communication relay server (102) converts a packet transmitted from a management terminal (101); and the communication relay client (202) receives the converted packet as a response to the polling via the NAT router (204) from the side of the management center network (1). The communication relay client (202) converts the converted packet to the original packet, and transmits the original packet to a device to be managed (201).
摘要:
An internet terminal, which includes a communication unit for sending and receiving packet data, an encryption unit for encrypting and decrypting packet data, a packet generation unit for generating packet data to be sent to a server apparatus, a protocol determination unit for determining a communication protocol to be used between the internet terminal and the server apparatus, a control request reading unit for reading in packet data and a control request packet that includes a control request, a control unit for receiving control information and controlling the internet terminal or a terminal apparatus accordingly. Further, the internet terminal includes a server certificate authentication unit for authenticating the validity of a server certificate sent by the server apparatus, a client certificate management unit for sending a client certificate to the server apparatus, and a storage unit for storing a terminal ID and other information.
摘要:
An internet terminal (110), which is a home terminal apparatus, is comprised of: a communication unit (111) for sending and receiving packet data; an encryption unit (112) for encrypting and decrypting packet data; a packet generation unit (113) for generating packet data to be sent to a server apparatus (200); a protocol determination unit (114) for determining a communication protocol to be used between the internet terminal (110) and the server apparatus (200); a control request reading unit (115) for reading in packet data and a control request packet that includes a control request; a control unit (116) for receiving control information and controlling the internet terminal (110) or a terminal apparatus (103) accordingly; a server certificate authentication unit (117) for authenticating the validity of a server certificate sent by the server apparatus (200); a client certificate management unit (118) for sending a client certificate to the server apparatus (200); and a storage unit (119) for storing a terminal ID and other information.
摘要:
An Internet terminal comprising: a communication unit that sends a local packet generated by a packet generation unit and receives a response local packet from a server apparatus; an encryption processing unit that encrypts the local packet to be sent out and decrypts the received response local packet; the packet generation unit that generates the local packet; a polling information storage unit that holds a terminal ID and a password used for identifying the internet terminal; a polling interval adjustment unit that identifies a polling interval at which the local packet is periodically sent to the router; and a control unit that sends control information to a terminal apparatus to be controlled and controls such terminal apparatus accordingly.
摘要:
An internet terminal (110) according to the present invention is comprised of: a communication unit (111) that sends a local packet generated by a packet generation unit (113) and receives a response local packet from a server apparatus (200); an encryption processing unit (112) that encrypts the local packet to be sent out and decrypts the received response local packet; the packet generation unit (113) that generates the local packet; a polling information storage unit (114) that holds a terminal ID and a password used for identifying the internet terminal (110); a polling interval adjustment unit (115) that identifies a polling interval at which the local packet is periodically sent to the router (101); and a control unit (116) that sends control information to a terminal apparatus to be controlled and controls such terminal apparatus accordingly.
摘要:
The present invention provides a gateway device releasing information and service information of an appliance to an appliance connected to a network having a different protocol. The gateway device includes a device description creation processing unit, a device description template holding unit, a service description creation processing unit, and a service description template holding unit. The service description creation processing unit categorizes services and attributes that each appliance can provide into property types, which are control models, and based on a rule defined for each property type, a service information description, which is information to be released, is automatically created.
摘要:
A remote maintenance system has a center server that is located in a service center for performing maintenance of an electrical appliance and a home server that is located in a house and monitors a status of the electrical appliance 102 in the house which are connected via a communication network. The home server includes an electrical appliance management unit that acquires a status value of the electrical appliance, a communication unit that receives from the center server a failure model which is information defining a method of deriving a decision whether the electrical appliance has failed or not from the status value, and a failure deciding unit that decides whether the electrical appliance has failed or not based on the acquired status value and the received failure model using qualitative reasoning. The center server includes a failure model updating unit that updates a failure model and sends the updated failure model to the home server via a communication unit.
摘要:
A home security system which includes sensors 11 to 18 that detect an alarming situation in different locations inside a facility, cameras 21 to 26 that capture images of different locations inside a facility, and a controller 30 that memorizes the associations between sensors 11 to 18 and cameras 21 to 26, and when any of the sensors 11 to 18 detects an alarming situation, has cameras that are associated with the sensors that have detected an alarming situation capture images based on the associations, and also updates the memorized associations.