JP4667895B2 - Security system and security system connection method - Google Patents

Description

  The present invention relates to a security system that transmits information using a telecommunication line such as the Internet and a connection method of the security system.

  Conventionally, there is a security system in which a sensor for detecting an abnormality is provided on the side of a security target facility such as a general home, store, or factory, and the abnormality information is reported to a center device or various terminal devices of the security center via a transmitter. It is used. With the recent spread of the Internet and the like, an electric communication line such as the Internet has been used as a line connecting the transmitter, the center device, and the terminal device (see, for example, Patent Document 1 and Patent Document 2).

  In this conventional security system, a web server and a web client are used as specific means for transmitting information using the Internet or the like. When accessing a web server from a web client, it is necessary to know the global IP address of the web server. If this global IP address is contracted to the Internet as a fixed IP address, access can be made with a fixed IP address, but the operation for acquiring the fixed IP address and its running cost are expensive. For this reason, usually, a dynamic global IP address is contracted to the Internet, and a global IP address that is arbitrarily assigned is acquired and operated every time an ISP (Internet Service Provider) is connected.

In addition, there is use of a free DNS (Domain Name System) server as an existing service. The DNS service acquires the user's own domain name, and the web client periodically notifies the global IP address to the DNS server. The DNS server updates the value of the global IP address associated with the domain name of the web client to the notified one. The web client always accesses with the same domain name, but the global IP address is resolved from the domain name by the DNS server, and connection is possible.
JP 2002-334387 A JP 2003-242575 A

  However, when a dynamic global IP address is used, it is necessary for the web client to check the global IP address assigned at that time for each access, which is complicated and requires time to connect to the web server. End up.

  In addition, when a DNS server is used, since the DNS server can only know the change of the global IP address periodically, it takes time for the changed global IP address to be reflected in the DNS server. Until then, there is a time lag that the web client cannot connect to the web server.

  The present invention has been made in view of such circumstances, and can easily or quickly grasp that the global IP address has been changed, and security equipment, terminal devices, center devices, DNS servers, and the like are mutually short. It is an object of the present invention to provide a security system and a security system connection method capable of being connected in time and avoiding a state where they cannot be connected to each other.

  The security system according to claim 1 includes a gateway device that relays information via a telecommunication line by a global IP address assigned by an Internet service provider to a security target facility, and a security device having a web server And the gateway device has an address change notification means for notifying the security device that the global IP address has been changed, and the security device receives the notification from the address change notification means and receives the changed global IP address. There is an address notification means for notifying an address to a terminal device that receives information related to security from the security device, and the terminal device is based on the global IP address of the security device received from the security device. It is characterized by connecting to.

  The security system according to claim 2 is characterized in that the gateway device receives an inquiry from the security device and notifies the security device that the global IP has been changed.

  The security system according to claim 3 includes a gateway device that relays information via a telecommunication line by a global IP address assigned by an Internet service provider to a security target facility side, and a security device having a web server The security device makes an inquiry about the global IP address to the gateway device, and has an address notification means for notifying the terminal device that receives the security-related information transmission of the global IP address. In response to an inquiry from the gateway device, it has an address notification means for transmitting the global IP address to the security device. When the security device detects a change in the global IP address received from the gateway device, it receives a new notification from the gateway device. Global IP address It notifies the terminal device, the terminal device, based on the global IP address of the security equipment received from the surveillance device, characterized in that connected to the security equipment.

  The security system according to claim 4 includes: a gateway device that relays information via a telecommunication line by a global IP address assigned by an Internet service provider to a security target facility; a security device having a web server; And the gateway device has an address change notification means for notifying the security device that the global IP address has been changed, and the security device receives the notification from the address change notification means and receives the changed global IP address. A terminal device which has an address notification means for notifying an address to a DNS server on a telecommunication line and receives information related to security from the security device is connected to the security device via the DNS server. And

  The security system according to claim 5 is characterized in that the gateway device receives an inquiry from the security device and notifies the security device that the global IP has been changed.

  The security system according to claim 6 includes a gateway device that relays information via a telecommunication line by a global IP address assigned by an Internet service provider to a security target facility, and a security device having a web server The security device makes an inquiry about the global IP address to the gateway device and has an address notification means for notifying the DNS server on the telecommunication line of the global IP address. In response to the inquiry, it has an address notification means for transmitting the global IP address to the security device, and when the security device detects a change in the global IP address received from the gateway device, the global device newly received from the gateway device. IP address is DN Notify the server, the terminal device receiving a communication relating to security from security equipment, through a DNS server, characterized by connecting to the security equipment.

  The security system according to claim 7 is a gateway device that relays information via a telecommunication line by a global IP address assigned by an Internet service provider to a center device side that receives information relating to security from a security device. And a center device main body, and the gateway device has an address change notification means for informing the center device main body that the global IP address has been changed, and the center device main body receives a notification from the address change notification means. And an address notification means for notifying the security device of the changed global IP address, and the security device is connected to the center device body based on the global IP address of the center device body received from the center device body. It is characterized by doing.

  The security system according to claim 8 is characterized in that the gateway device receives an inquiry from the center device main body and informs the center device main body that the global IP has been changed.

  The security system according to claim 9 is a gateway device that relays information via a telecommunication line with a global IP address assigned by an Internet service provider to a center device that receives information related to security from a security device. And a center apparatus body, the center apparatus body inquires the gateway apparatus about the global IP address, and has an address notification means for notifying the security device of the global IP address. Address notification means for receiving a global IP address to the center device body in response to an inquiry from the center device, and when the center device body detects a change in the global IP address received from the gateway device, a new notification is received from the gateway device. Glover It notifies the IP address to a security equipment, surveillance equipment, based on the center unit global IP address of the body received from the center apparatus main body, characterized in that connected to the center apparatus.

  The security system according to claim 10 is a gateway device that relays information via a telecommunication line by a global IP address assigned by an Internet service provider to a center device side that receives information related to security from a security device. And a center device main body, and the gateway device has an address change notification means for informing the center device main body that the global IP address has been changed, and the center device main body receives a notification from the address change notification means. The address notification means for notifying the changed global IP address to the DNS server on the telecommunication line is provided, and the security device is connected to the center of the center apparatus via the DNS server.

  The security system according to claim 11 is characterized in that the gateway device receives an inquiry from the center device main body and informs the center device main body that the global IP has been changed.

  13. The security system according to claim 12, wherein a gateway device that relays information via a telecommunication line by a global IP address assigned by an Internet service provider to a center device side that receives information relating to security from a security device. And a center device body, the center device body inquires the gateway device about the global IP address, and has an address notification means for notifying the DNS server on the telecommunication line of the global IP address. In response to an inquiry from the center apparatus main body, an address notification means for transmitting the global IP address to the center apparatus main body is provided. When the center apparatus main body detects a change in the global IP address received from the gateway apparatus, Gateway device A global IP address received and notifies the DNS server, surveillance equipment, through a DNS server, characterized in that connected to the center apparatus.

  The security system according to claim 13 is a gateway device that relays information via a telecommunication line by a global IP address assigned by an Internet service provider to a center device side that receives information related to security from a security device. And a center device main body, and the gateway device has an address change notification means for informing the center device main body that the global IP address has been changed, and the center device main body receives a notification from the address change notification means. An address notification means for notifying the changed global IP address to a terminal device that receives information relating to security from the center device, and the terminal device receives the global IP address of the center device body received from the center device body. Based on this, it is connected to the center device main body.

  The security system according to claim 14 is characterized in that the gateway device receives an inquiry from the center device body and informs the center device body that the global IP has been changed.

  The security system according to claim 15 is a gateway device that relays information via a telecommunication line with a global IP address assigned by an Internet service provider to a center device that receives information related to security from a security device. And a center device main body, the center device main body has an address notification means for notifying the gateway device of the global IP address and notifying the terminal device receiving the information related to the security, the gateway When the device receives an inquiry from the center device body and has an address notification means for transmitting the global IP address to the center device body, and the center device body detects a change in the global IP address received from the gateway device, New gateway The laid et received global IP address notified to the terminal device, the terminal device, based on the center unit global IP address of the body received from the center apparatus main body, characterized in that connected to the center apparatus.

  The security system according to claim 16 is a gateway device that relays information via a telecommunication line with a global IP address assigned by an Internet service provider to a center device that receives information related to security from a security device. And a center device main body, and the gateway device has an address change notification means for informing the center device main body that the global IP address has been changed, and the center device main body receives a notification from the address change notification means. The terminal device that has an address notification means for notifying the changed global IP address to the DNS server on the telecommunication line and receives information related to security from the center device is connected to the center device body via the DNS server. It is characterized by connecting.

  The security system according to claim 17 is characterized in that the gateway device receives an inquiry from the center device main body and informs the center device main body that the global IP has been changed.

  19. A security system according to claim 18, wherein a gateway device relays information via a telecommunication line by a global IP address assigned by an Internet service provider to a center device receiving security information from a security device. And a center device body, the center device body inquires the gateway device about the global IP address, and has an address notification means for notifying the DNS server on the telecommunication line of the global IP address. In response to an inquiry from the center apparatus main body, an address notification means for transmitting the global IP address to the center apparatus main body is provided. When the center apparatus main body detects a change in the global IP address received from the gateway apparatus, Gateway device The received global IP address notified to the DNS server, the terminal device receiving the information transmitted according from the center apparatus to a security is, via a DNS server, characterized in that it connected to the center apparatus.

  The connection method of the security system according to claim 19 is provided on the security target facility side, and the gateway device that relays information through the telecommunication line by the global IP address assigned by the Internet service provider is provided on the security target facility side. The security device having the web server provided in the server is notified that the global IP address has been changed, and the security device receives the notification that the global IP address has been changed. The terminal device is connected to the security device based on the global IP address of the security device received from the security device after notifying the security device to the terminal device that receives information related to the security. .

  The connection method of the security system according to claim 20 is characterized in that the gateway device receives an inquiry from the security device and notifies the security device that the global IP has been changed.

  The security system connection method according to claim 21, wherein a security device having a web server provided on the security target facility side is provided on the security target facility side and is telecommunications by a global IP address assigned by an Internet service provider. The gateway device that relays information via the line is inquired about the global IP address, the gateway device receives the inquiry about the security device, transmits the global IP address to the security device, and the security device When a change in the global IP address received from the gateway device is detected, the global IP address newly received from the gateway device is notified to the terminal device that receives information related to security from the security device, and the terminal device is used for security. Global security equipment received from equipment Based on IP address, characterized in that connected to the security equipment.

  The connection method of the security system according to claim 22 is provided on the security target facility side, and the gateway device that relays information via the telecommunication line by the global IP address assigned by the Internet service provider is provided on the security target facility side. The security device having the web server provided in the server is notified that the global IP address has been changed, and the security device receives the notification that the global IP address has been changed. After notifying the DNS server on the telecommunication line, a terminal device that receives information related to security from the security device is connected to the security device via the DNS server.

  According to a 23rd aspect of the present invention, there is provided a security system connection method, wherein the gateway device receives an inquiry from the security device and notifies the security device that the global IP has been changed.

  25. The security system connection method according to claim 24, wherein a security device having a web server provided on the security target facility side is provided on the security target facility side and is telecommunications by a global IP address assigned by an Internet service provider. The gateway device that relays information via the line is inquired about the global IP address, the gateway device receives the inquiry about the security device, transmits the global IP address to the security device, and the security device When a change in the global IP address received from the gateway device is detected, a terminal that notifies the DNS server on the telecommunication line of the global IP address newly received from the gateway device and receives information relating to security from the security device The device can be monitored via the DNS server. Characterized in that it connects to use equipment.

  The security system connection method according to claim 25 is provided on a center device side that receives information related to security from a security device, and relays information via a telecommunication line by a global IP address assigned by an Internet service provider. The gateway device that performs the notification notifies the center device main body that the global IP address has been changed, and the center device main body receives the notification that the global IP address has been changed, and sends the changed global IP address to the security device. After the notification, the security device is connected to the center apparatus body based on the global IP address of the center apparatus body received from the center apparatus body.

  The connection method of the security system according to claim 26 is characterized in that the gateway apparatus receives an inquiry from the center apparatus body and notifies the center apparatus body that the global IP has been changed.

  28. A security system connection method according to claim 27, wherein a center device body on the center device side that receives information relating to security from a security device is provided on the security target facility side, and is assigned a global IP address from an Internet service provider. Makes an inquiry about the global IP address to the gateway device that relays information via the telecommunication line, and the gateway device receives the inquiry of the center device main body and transmits the global IP address to the center device main body. When the device main body detects a change in the global IP address received from the gateway device, the security device notifies the security device of the global IP address newly received from the gateway device, and the security device receives the center received from the center device main body. Global device body Based on P address, characterized in that connected to the center apparatus.

  A security system connection method according to claim 28 is provided on a center device side that receives information relating to security from a security device, and relays information via a telecommunication line by a global IP address assigned by an Internet service provider. The gateway device that performs the notification notifies the center device main body that the global IP address has been changed. The center device main body receives the notification that the global IP address has been changed, and sends the changed global IP address to the telecommunications line. After the notification to the DNS server, the security device is connected to the center apparatus main body via the DNS server.

  The connection method of the security system according to claim 29 is characterized in that the gateway device receives an inquiry from the center device main body and informs the center device main body that the global IP has been changed.

  The security system connection method according to claim 30, wherein a center device body on the center device side that receives information related to security from a security device is provided on the security target facility side, and is assigned a global IP address from an Internet service provider Makes an inquiry about the global IP address to the gateway device that relays information via the telecommunication line, and the gateway device receives the inquiry of the center device main body and transmits the global IP address to the center device main body. When the main body detects a change in the global IP address received from the gateway device, it notifies the DNS server on the telecommunication line of the global IP address newly received from the gateway device, and the security device passes through the DNS server. To the center unit Characterized in that it continue.

  A security system connection method according to claim 31 is provided on a center device side that receives information on security from a security device, and relays information via a telecommunication line using a global IP address assigned by an Internet service provider. The gateway device that performs the notification notifies the center device body that the global IP address has been changed. The center device body receives the notification that the global IP address has been changed, and receives the changed global IP address from the center device. The terminal device is connected to the center device main body based on the global IP address of the center device main body received from the center device main body after notifying the terminal device receiving the information transmission related to security.

  In the security system connection method according to the thirty-second aspect, the gateway device receives an inquiry from the center device body and notifies the center device body that the global IP has been changed.

  A security system connection method according to claim 33, wherein a center device body on the center device side that receives information relating to security from a security device is provided on the security target facility side, and is assigned a global IP address from an Internet service provider Makes an inquiry about the global IP address to the gateway device that relays information via the telecommunication line, and the gateway device receives the inquiry of the center device main body and transmits the global IP address to the center device main body. When the device main body detects a change in the global IP address received from the gateway device, the terminal device notifies the terminal device that receives information related to security from the center device to the global IP address newly received from the gateway device. From the center unit Based on only the center unit global IP address of the body taken, characterized in that connected to the center apparatus.

  A security system connection method according to a thirty-fourth aspect is provided on a center device side that receives information relating to security from a security device, and relays information via a telecommunication line using a global IP address assigned by an Internet service provider. The gateway device that performs the notification notifies the center device main body that the global IP address has been changed. The center device main body receives the notification that the global IP address has been changed, and sends the changed global IP address to the telecommunications line. After the notification to the DNS server, the terminal device that receives information related to security from the center device is connected to the center device body through the DNS server.

  A security system connection method according to a thirty-fifth aspect is characterized in that the gateway device receives an inquiry from the center device main body and informs the center device main body that the global IP has been changed.

  37. A security system connection method according to claim 36, wherein a center device body on the center device side that receives information relating to security from a security device is provided on the security target facility side, and a global IP address assigned by an Internet service provider Makes an inquiry about the global IP address to the gateway device that relays information via the telecommunication line, and the gateway device receives the inquiry of the center device main body and transmits the global IP address to the center device main body. When the main body detects a change in the global IP address received from the gateway device, it notifies the DNS server on the telecommunication line of the global IP address newly received from the gateway device, and transmits information related to security from the center device. The receiving terminal device Via the NS server, characterized in that connected to the center apparatus.

  According to the first and second aspects of the invention, the gateway device on the security target facility side notifies the security equipment that the global IP address has been changed, and the security equipment changes the global IP address. In response, the terminal device notifies the terminal device of the changed global IP address from the security device, so that the terminal device can easily grasp that the global IP address has been changed, and can quickly become a security device. Connectable.

  According to the invention of claim 3, when the security device detects a change in the global IP address received from the gateway device, it notifies the terminal device of the global IP address newly received from the gateway device. The device can easily grasp that the global IP address has been changed, and can connect to the security device in a short time.

  According to the inventions of claim 4 and claim 5, the gateway device on the security target facility side notifies the security equipment that the global IP address has been changed, and the security equipment changes the global IP address. In response to the notification, the DNS server is notified of the changed global IP address, so that the DNS server can quickly recognize that the global IP address has been changed, reduce the time lag until the change, and guard the terminal device. Can avoid being unable to connect to the equipment.

  According to the invention of claim 6, when the security device detects a change in the global IP address received from the gateway device, it notifies the DNS server of the global IP address newly received from the gateway device. The server can quickly grasp that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the terminal device cannot be connected to the security device.

  According to the seventh and eighth aspects of the present invention, the gateway device on the center device side notifies the center device body that the global IP address has been changed, and the center device body has changed the global IP address. When the notification is received and the changed global IP address is notified from the center device body to the security device, the security device can easily grasp that the global IP address has been changed, and the center device body in a short time. Can be connected to.

  According to the invention of claim 9, when the center device main body detects a change in the global IP address received from the gateway device, it notifies the security device of the global IP address newly received from the gateway device. The security device can easily grasp that the global IP address has been changed, and can be connected to the center apparatus body in a short time.

  According to the tenth and eleventh aspects of the invention, the gateway device on the center device side notifies the center device body that the global IP address has been changed, and the center device body has changed the global IP address. When the notification is received and the changed global IP address is notified to the DNS server, the DNS server can quickly recognize that the global IP address has been changed, reduce the time lag until the change, and the security equipment It is possible to avoid a state in which the apparatus main body cannot be connected.

  According to the invention of claim 12, when the center apparatus main body detects a change in the global IP address received from the gateway apparatus, it notifies the DNS server of the global IP address newly received from the gateway apparatus. The server can quickly grasp that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the security device cannot be connected to the center apparatus body.

  According to the invention of claim 13 and claim 14, the gateway device on the center device side notifies the center device body that the global IP address has been changed, and the center device body changes the global IP address. When the notification is received and the changed global IP address is notified from the center device body to the terminal device, the terminal device can easily grasp that the global IP address has been changed, and can connect to the center device body in a short time. Is possible.

  According to the fifteenth aspect of the present invention, when the center device body detects a change in the global IP address received from the gateway device, the center device notifies the terminal device of the global IP address newly received from the gateway device. The apparatus can easily grasp that the global IP address has been changed, and can be connected to the center apparatus body in a short time.

  According to the invention of claim 16 and claim 17, the gateway device on the center device side notifies the center device body that the global IP address has been changed, and the center device body has changed the global IP address. When the notification is received and the changed global IP address is notified to the DNS server, the DNS server can quickly grasp that the global IP address has been changed, reduce the time lag until the change, and the terminal device becomes the center device. It is possible to avoid a state where it cannot be connected to the main body.

  According to the invention of claim 18, when the center apparatus main body detects a change of the global IP address received from the gateway apparatus, the center apparatus notifies the DNS server of the global IP address newly received from the gateway apparatus. The server can quickly grasp that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the terminal device cannot be connected to the center device body.

  According to the inventions of claims 19 and 20, the gateway device on the security target facility side notifies the security equipment that the global IP address has been changed, and the security equipment changes the global IP address. In response, the terminal device notifies the terminal device of the changed global IP address from the security device, so that the terminal device can easily grasp that the global IP address has been changed, and can quickly become a security device. Connectable.

  According to the invention of claim 21, when the security device detects a change in the global IP address received from the gateway device, the global IP address newly received from the gateway device is transmitted to the security device from the security device. Therefore, the terminal device can easily grasp that the global IP address has been changed, and can connect to the security device in a short time.

  According to the inventions of claims 22 and 23, the gateway device on the security target facility side notifies the security equipment that the global IP address has been changed, and the security equipment changes the global IP address. In response to the notification, the DNS server is notified of the changed global IP address, so that the DNS server can quickly recognize that the global IP address has been changed, reduce the time lag until the change, and guard the terminal device. Can avoid being unable to connect to the equipment.

  According to the invention of claim 24, when the security device detects a change in the global IP address received from the gateway device, the security device notifies the DNS server on the telecommunication line of the global IP address newly received from the gateway device. Therefore, the DNS server can quickly grasp that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the terminal device cannot be connected to the security device.

  According to the invention of claim 25 and claim 26, the gateway device on the center device side notifies the center device body that the global IP address has been changed, and the center device body has changed the global IP address. When the notification is received and the changed global IP address is notified from the center unit to the security equipment, the security equipment can easily grasp that the global IP address has been changed, and the security equipment can be obtained in a short time. Can be connected to.

  According to the invention of claim 27, when the center apparatus main body detects a change in the global IP address received from the gateway apparatus, the center apparatus body notifies the security device of the global IP address newly received from the gateway apparatus. The security device can easily grasp that the global IP address has been changed, and can be connected to the security device in a short time.

  According to the invention of claim 28 and claim 29, the gateway apparatus on the center apparatus side notifies the center apparatus body that the global IP address has been changed, and the center apparatus body has the global IP address changed. When the notification is received and the changed global IP address is notified to the DNS server, the DNS server can quickly recognize that the global IP address has been changed, reduce the time lag until the change, and the security equipment It is possible to avoid a state in which the apparatus main body cannot be connected.

  According to the invention of claim 30, when the center apparatus main body detects a change in the global IP address received from the gateway apparatus, the center apparatus main body notifies the DNS server on the telecommunication line of the global IP address newly received from the gateway apparatus. Therefore, the DNS server can grasp early that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the security device cannot be connected to the center apparatus body.

  According to the invention of claim 31 and claim 32, the gateway device on the center device side notifies the center device body that the global IP address has been changed, and the center device body has changed the global IP address. When the notification is received and the changed global IP address is notified from the center device body to the terminal device, the terminal device can easily grasp that the global IP address has been changed, and can connect to the center device body in a short time. Is possible.

  According to the invention of claim 33, when the center apparatus main body detects a change in the global IP address received from the gateway apparatus, the center apparatus transmits the information related to security from the center apparatus to the global IP address newly received from the gateway apparatus. Since the terminal device is notified, the terminal device can easily grasp that the global IP address has been changed, and can connect to the center device body in a short time.

  According to the invention of claim 34 and claim 35, the gateway device on the center device side notifies the center device body that the global IP address has been changed, and the center device body has changed the global IP address. When the notification is received and the changed global IP address is notified to the DNS server, the DNS server can quickly grasp that the global IP address has been changed, reduce the time lag until the change, and the terminal device becomes the center device. It is possible to avoid a state where it cannot be connected to the main body.

  According to the invention of claim 36, when the center apparatus main body detects a change of the global IP address received from the gateway apparatus, it notifies the DNS server on the telecommunication line of the global IP address newly received from the gateway apparatus. Therefore, the DNS server can quickly grasp that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the terminal device cannot be connected to the center device body.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. The security system in the form of the present invention detects and reports information on abnormalities in security target facilities such as general homes, stores, factories, etc., in which suspicious persons or the like are not preferable to enter, and is used for telecommunications such as the Internet. Information related to security is transmitted using a line.

  FIG. 1 is a configuration diagram showing the configuration of the first embodiment of the security system according to the present invention. FIG. 2 is a timing chart showing the operation of the security system. In the figure, the security system 1 according to the present embodiment can transmit information about various sensors 23 provided in a security target facility 10 to be guarded and an abnormality detected by the sensor 23 to the outside using the IP communication network 6. It comprises a transmitter 25 that is a security device, an IGD (Internet Gateway Device) 20 that is a gateway device, and a terminal device 11 that displays information such as abnormality. An ISP (Internet Service Provider) 5 is connected to the IP communication network 6.

  The transmitter 25 includes a control unit 26 that is an interface of the sensor 23, a web server 28 that can transmit information such as abnormality to the outside, and an address notification unit 27 that notifies a global IP address. The IP communication network 6 is a telecommunication line that can be connected to the Internet constantly or intermittently. In addition to a WAN (Wide Area Network), an ADSL (Asymmetric Digital Subscriber Line) line, a dedicated line, etc., Connection via a LAN (Local Area Network) is also included. Further, an environment in which the Internet can be used by connecting to an access point of an ISP (Internet Service Provider) 5 through a public line network may be used. Examples of the public line network include an analog subscription line, an ISDN line, a DoPa line, a mobile phone network, and a PHS network.

  An IGD (Internet Gateway Device) 20 is a gateway device that relays information via the IP communication network 6 using a global IP address assigned by the ISP 5. The IGD 20 includes an address change notification unit 21 that notifies that the global IP address on the security target facility 10 side has been changed.

  The terminal device 11 includes a control unit (51) that controls the device (not shown in FIG. 1) (see FIG. 9), and a web client (52) that can transmit information to the external transmitter 25 and the like via the IP communication network 6. It consists of and. The terminal device 11 is an information communication terminal configured by hardware or software such as a personal computer, a PDA (Personal Digital Assistance), and a mobile phone.

  The transmitter 25, the IGD 20, the terminal device 11 and the like may be configured only by hardware, or may be configured as a single software or a complex of hardware and software. Further, in FIG. 1, the web server 28 does not necessarily have to be inside the security target facility 10, and may be constructed in an area such as ISP 5. Any configuration may be used.

  Next, based on FIG.1 and FIG.2, operation | movement of the security system 1 of a present Example is demonstrated. First, it is assumed that the transmitter 25 is in a state where information can be transmitted between the terminal device 11 via the IGD 20 and the IP communication network 6 using a dynamic global IP address previously assigned by the ISP 5. Here, it is assumed that the dynamic reassignment of the global IP address occurs in the ISP 5 and the change of the global IP address is notified from the ISP 5 to the IGD 20.

  The IGD 20 that has received the change of the global IP address and the changed global IP address transmits the fact that the global IP address has been changed and the changed global IP address as the function of the address change notification unit 21 as the address change notification means. The address notification unit 27 of the machine 25 is notified. Further, the IGD 20 changes the internal setting to a state where communication with the terminal device 11 is possible using the changed new global IP address.

  Next, the transmitter 25 that has received the change of the global IP address and the changed global IP address from the IGD 20 has been changed to indicate that the global IP address has been changed as a function of the address notification unit 27 as an address notification unit. The terminal device 11 is notified of the global IP address. The notification method may be any means capable of notification, such as e-mail and FTP. It should be noted that the transmitter 25 makes the IGD 20 a confirmation response to the effect that the notification of the change of the global IP address has been received as necessary.

  The terminal device 11 that has received the change of the global IP address and the changed global IP address from the transmitter 25 performs subsequent communication with the transmitter 25 based on the changed new global IP address received from the transmitter 25. And receive information on security (access).

  As described above, in the security system 1 of the present embodiment, the IGD 20 that is the gateway device on the security target facility 10 side notifies the transmitter 25 that the global IP address has been changed, and the transmitter 25 Since the notification of the change of the global IP address is received and the changed global IP address is notified to the terminal device 11, the terminal device 11 can easily grasp that the global IP address has been changed, and can be transmitted in a short time. It can be connected to the machine 25.

  Since the transmitter 25 directly notifies the terminal device 11 of the changed global IP address, the terminal device 11 can directly connect to the transmitter 25 without using a DNS server.

  In addition, as another operation | movement of the security system 1 of a present Example, there is also what is shown to the timing chart of FIG. Specifically, first, the transmitter 25 periodically inquires of the IGD 20 whether the global IP address has been changed. When the global IP address is changed, the IGD 20 notifies the transmitter 27 of the change of the global IP address and the changed global IP address in response to an inquiry from the transmitter 25. Subsequent operations are the same as those described above. Also by such a method, the terminal device 11 can easily grasp that the global IP address has been changed, and can connect to the transmitter 25 in a short time.

  Furthermore, as another operation | movement of the security system 1 of a present Example, there also exists what is shown to the timing chart of FIG. More specifically, first, the transmitter 25 periodically makes a global IP address inquiry to the IGD 20. In response to the inquiry from the transmitter 25, the IGD 20 notifies the transmitter 27 of the global IP address. The transmitter 27 compares the global IP address stored in advance with the newly received global IP address, and when the change of the global IP address is detected, the change of the global IP address and the changed global IP address are displayed. To be notified. Subsequent operations are the same as those described above. Also by such a method, the terminal device 11 can easily grasp that the global IP address has been changed, and can connect to the transmitter 25 in a short time.

  FIG. 5 is a block diagram showing the configuration of the second embodiment of the security system according to the present invention. FIG. 6 is a timing chart showing the operation of the security system. In the figure, the security system 2 according to the present embodiment can transmit information about various sensors 23 provided in the security target facility 10 to be guarded and an abnormality detected by the sensor 23 to the outside using the IP communication network 6. It consists of a transmitter 25 that is a security device, an IGD 20 that is a gateway device, and a terminal device 11 that displays information such as abnormality. An ISP 5 is connected to the IP communication network 6. These configurations are the same as those of the first embodiment. In the present embodiment, in addition to the configuration of the first embodiment, a DNS (Domain Name System) server 7 is connected to the IP communication network 6. Note that description of parts already described in the first embodiment is omitted. The DNS server 7 resolves the global IP address from the domain name, enables connection by the domain name, and updates the value of the global IP address associated with the domain name of the user to the notified one.

  Next, based on FIG.5 and FIG.6, operation | movement of the security system 2 of a present Example is demonstrated. First, the transmitter 25 uses a dynamic global IP address previously assigned by the ISP 5, and the domain name is associated with this dynamic global IP address in the DNS server 7 as well. The terminal device 11 is assumed to be in a state in which information can be transmitted to and from the transmitter 25 via the IGD 20 via the DNS server 7. Here, it is assumed that the dynamic reassignment of the global IP address occurs in the ISP 5 and the change of the global IP address is notified from the ISP 5 to the IGD 20.

  The IGD 20 that has received the change of the global IP address and the changed global IP address transmits the fact that the global IP address has been changed and the changed global IP address as the function of the address change notification unit 21 as the address change notification means. The address notification unit 27 of the machine 25 is notified. Further, the IGD 20 changes the internal setting to a state where communication with the terminal device 11 is possible using the changed new global IP address.

  Next, the transmitter 25 that has received the change of the global IP address and the changed global IP address from the IGD 20 has been changed to indicate that the global IP address has been changed as a function of the address notification unit 27 as an address notification unit. The global IP address is notified to the DNS server 7. It should be noted that the transmitter 25 makes the IGD 20 a confirmation response to the effect that the notification of the change of the global IP address has been received as necessary.

  The DNS server 7 that has received the change of the global IP address and the changed global IP address from the transmitter 25 associates the changed new global IP address received from the transmitter 25 with the domain name. The terminal device 11 can transmit information to and from the transmitter 25 via the IGD 20 regardless of whether or not the global IP address has been changed via the DNS server 7. And receive information on security (access).

  As described above, in the security system 2 of the present embodiment, the IGD 20 that is the gateway device notifies the transmitter 25 that the global IP address has been changed, and the transmitter 25 has changed the global IP address. When the notification is received and the changed global IP address is notified to the DNS server 7, the DNS server 7 can quickly recognize that the global IP address has been changed, reduce the time lag until the change, and the terminal device 11. Can be prevented from being connected to the transmitter 25.

  In addition, as another operation | movement of the security system 2 of a present Example, there is also what is shown to the timing chart of FIG. Specifically, first, the transmitter 25 periodically inquires of the IGD 20 whether the global IP address has been changed. When the global IP address is changed, the IGD 20 notifies the transmitter 27 of the change of the global IP address and the changed global IP address in response to an inquiry from the transmitter 25. Subsequent operations are the same as those described above. Also by such a method, the DNS server 7 can grasp early that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the terminal device 11 cannot connect to the transmitter 25.

  Furthermore, as another operation | movement of the security system 2 of a present Example, there also exists what is shown to the timing chart of FIG. Specifically, first, the transmitter 25 periodically inquires of the IGD 20 whether the global IP address has been changed. In response to the inquiry from the transmitter 25, the IGD 20 notifies the transmitter 27 of the global IP address. The transmitter 27 compares the global IP address stored in advance with the newly received global IP address, and when the change of the global IP address is detected, the change of the global IP address and the changed global IP address are displayed. To be notified. Subsequent operations are the same as those described above. Also by such a method, the DNS server 7 can grasp early that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the terminal device 11 cannot connect to the transmitter 25.

  FIG. 9 is a block diagram showing the configuration of the third embodiment of the security system according to the present invention. FIG. 10 is a timing chart showing the operation of the security system. In the figure, the security system 3 according to the present embodiment can transmit information about various sensors 45 provided in the security target facility 17 to be guarded and the abnormality detected by the sensor 45 to the outside using the IP communication network 6. It comprises a transmitter 40 that is a security device, a center device 14 that manages information such as abnormality, and a terminal device 18 that is connected to the center device 14 to acquire and display information such as abnormality.

  The transmitter 40 includes a control unit 41 that is an interface of the sensor 45 and a web client 42 that can transmit information such as abnormality to the outside. The IP communication network 6 is the same as that in the first embodiment. The center device 14 includes a center device main body 15 and an IGD (Internet Gateway Device) 16 that is a gateway device. The center device main body 15 notifies the control unit 35 that controls the device, the web server 37 that can transmit information to the external transmitter 40 and the terminal device 18 via the IP communication network 6, and the global IP address. The address notification unit 36 is configured.

  An IGD (Internet Gateway Device) 16 is a gateway device that relays information via the IP communication network 6 using a global IP address assigned by the ISP 5. The IGD 16 includes an address change notification unit 31 that notifies that the global IP address on the center device 14 side has been changed.

  The transmitter 40 includes a control unit 41 that is an interface of the sensor 45 and a web client 42 that can transmit information such as abnormality to the outside.

  The terminal device 18 includes a control unit 51 that controls the device, and a web client 52 that can transmit information to the external center device 14 and the like via the IP communication network 6. The terminal device 18 is an information communication terminal configured by hardware or software such as a personal computer, a PDA (Personal Digital Assistance), and a mobile phone.

  The center device main body 15, the IGD 16, the transmitter 40, the terminal device 18 and the like may be configured only by hardware, or may be configured as a single software or a complex of hardware and software. In FIG. 5, the web server 37 does not necessarily have to be inside the center device 14, and may be constructed in an area such as the ISP 5, and the center device 14 as viewed from the transmitter 40 and the terminal device 18. Any structure belonging to the side may be used.

  Next, based on FIG.9 and FIG.10, operation | movement of the security system 3 of a present Example is demonstrated. First, the center device main body 15 is in a state in which information can be transmitted between the transmitter 40 and the terminal device 18 via the IGD 16 and the IP communication network 6 using the dynamic global IP address previously assigned by the ISP 5. To do. Here, it is assumed that dynamic reassignment of the global IP address occurs in ISP 5 and the change of the global IP address is notified to IGD 16 from ISP 5.

  Upon receiving the change of the global IP address and the changed global IP address, the IGD 16 functions as a function of the address change notification unit 31 serving as an address change notification unit, by centering the fact that the global IP address has been changed and the changed global IP address. This is notified to the address notification unit 36 of the apparatus body 15. Further, the IGD 16 changes the internal setting to a state in which communication with the transmitter 40 and the terminal device 18 is possible using the changed new global IP address.

  Next, the center device main body 15 that has received the change of the global IP address and the changed global IP address from the IGD 16 changes the fact that the global IP address has been changed as a function of the address notification unit 36 as the address notification means. The global IP address is notified to the transmitter 40 and the terminal device 18. The notification method may be any means capable of notification, such as e-mail and FTP. It should be noted that the center device main body 15 makes the IGD 16 a confirmation response to the effect that the notification of the change of the global IP address has been received as necessary.

  The transmitter 40 and the terminal device 18 that have received the change of the global IP address and the changed global IP address from the transmitter 40, perform subsequent transmissions based on the changed new global IP address received from the center device body 15. It communicates with the machine 40 and exchanges information related to security (access).

  As described above, in the security system 3 of the present embodiment, the IGD 16 that is the gateway device on the center device 14 side notifies the center device main body 15 that the global IP address has been changed, and the center device main body 15 Since the notification of the change of the global IP address is received and the changed global IP address is notified from the center device body 15 to the transmitter 40, the transmitter 40 can easily grasp that the global IP address has been changed. It can be connected to the center device main body 15 in a short time.

  Further, the IGD 16 that is the gateway device on the center device 14 side notifies the center device main body 15 that the global IP address has been changed, and the center device main body 15 receives the notification that the global IP address has been changed. Since the changed global IP address is notified from the center device body 15 to the terminal device 18, the terminal device 18 can easily grasp that the global IP address has been changed and can connect to the center device body 15 in a short time. It is.

  Further, since the center device main body 15 directly notifies the changed global IP address to the transmitter 40 or the terminal device 18, the transmitter 40 or the terminal device 18 directly connects to the center device main body 15 without using a DNS server. Is possible.

  In addition, as another operation | movement of the security system 3 of a present Example, there is also what is shown to the timing chart of FIG. More specifically, first, the center apparatus body 15 periodically inquires of the IGD 16 whether the global IP address has been changed. When the global IP address is changed, the IGD 16 notifies the center device body 15 of the change of the global IP address and the changed global IP address in response to an inquiry from the center device body 15. . Subsequent operations are the same as those described above. Also by such a method, the transmitter 40 and the terminal device 18 can easily grasp that the global IP address has been changed, and can connect to the center device body 15 in a short time.

  Furthermore, as another operation | movement of the security system 3 of a present Example, there also exists what is shown to the timing chart of FIG. More specifically, first, the center apparatus body 15 periodically inquires the IGD 16 about a global IP address. In response to the inquiry from the center apparatus body 15, the IGD 16 notifies the center apparatus body 15 of the global IP address. Subsequent operations are the same as those described above. Also by such a method, the transmitter 40 and the terminal device 18 can easily grasp that the global IP address has been changed, and can connect to the center device body 15 in a short time.

  FIG. 13: is a block diagram which shows the structure of the 4th Example of the security system which concerns on this invention. FIG. 14 is a timing chart showing the operation of the security system. In the figure, the security system 4 according to the present embodiment can transmit information about various sensors 45 provided in the security target facility 17 to be guarded and the abnormality detected by the sensor 45 to the outside using the IP communication network 6. It comprises a transmitter 40 that is a security device, a center device 14 that manages information such as abnormality, and a terminal device 18 that is connected to the center device 14 to acquire and display information such as abnormality. An ISP 5 is connected to the IP communication network 6. These configurations are the same as those of the third embodiment. In the present embodiment, in addition to the configuration of the third embodiment, a DNS (Domain Name System) server 7 is connected to the IP communication network 6. Note that description of parts already described in the first embodiment is omitted. The DNS server 7 resolves the global IP address from the domain name, enables connection by the domain name, and updates the value of the global IP address associated with the domain name of the user to the notified one.

  Next, based on FIG.13 and FIG.14, operation | movement of the security system 4 of a present Example is demonstrated. First, the center apparatus body 15 uses a dynamic global IP address previously assigned by the ISP 5, and the domain name is associated with the dynamic global IP address in the DNS server 7 as well. Then, it is assumed that the transmitter 40 and the terminal device 18 are in a state where information can be transmitted to the center device body 15 via the IGD 16 via the DNS server 7. Here, it is assumed that dynamic reassignment of the global IP address occurs in ISP 5 and the change of the global IP address is notified to IGD 16 from ISP 5.

  Upon receiving the change of the global IP address and the changed global IP address, the IGD 16 functions as a function of the address change notification unit 31 serving as an address change notification unit, by centering the fact that the global IP address has been changed and the changed global IP address. This is notified to the address notification unit 36 of the apparatus body 15. Further, the IGD 16 changes the internal setting to a state in which communication with the transmitter 40 and the terminal device 18 is possible using the changed new global IP address.

  Next, the center device main body 15 that has received the change of the global IP address and the changed global IP address from the IGD 16 changes the fact that the global IP address has been changed as a function of the address notification unit 36 as the address notification means. The global IP address is notified to the DNS server 7. It should be noted that the center device main body 15 makes the IGD 16 a confirmation response to the effect that the notification of the change of the global IP address has been received as necessary.

  The DNS server 7 that has received the change of the global IP address and the changed global IP address from the center apparatus body 15 associates the changed new global IP address received from the center apparatus body 15 with the domain name. The transmitter 40 and the terminal device 18 can transmit information to and from the center device body 15 via the IGD 16 regardless of whether or not the global IP address has been changed via the DNS server 7. Thereafter, communication with the center apparatus main body 15 is performed, and information relating to security is exchanged (access).

  As described above, in the security system 4 of the present embodiment, the IGD 16 that is the gateway device on the center device 14 side notifies the center device main body 15 that the global IP address has been changed, and the center device main body 15 Since the notification of the change of the global IP address is received and the changed global IP address is notified to the DNS server 7, the DNS server 7 can quickly grasp that the global IP address has been changed. The time lag is reduced, and a state where the transmitter 40 and the terminal device 18 cannot be connected to the center device main body 15 can be avoided.

  In addition, as another operation | movement of the security system 4 of a present Example, there is also what is shown to the timing chart of FIG. More specifically, first, the center apparatus body 15 periodically inquires of the IGD 16 whether the global IP address has been changed. When the global IP address is changed, the IGD 16 notifies the center device body 15 of the change of the global IP address and the changed global IP address in response to an inquiry from the center device body 15. . Subsequent operations are the same as those described above. Even with such a method, the DNS server 7 can quickly grasp that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the transmitter 40 and the terminal device 18 cannot be connected to the center device body 15. it can.

  Furthermore, as another operation | movement of the security system 4 of a present Example, there also exists what is shown to the timing chart of FIG. More specifically, first, the center apparatus body 15 periodically inquires the IGD 16 about a global IP address. In response to the inquiry from the center apparatus body 15, the IGD 16 notifies the center apparatus body 15 of the global IP address. Subsequent operations are the same as those described above. Even with such a method, the DNS server 7 can quickly grasp that the global IP address has been changed, reduce the time lag until the change, and avoid a state in which the transmitter 40 and the terminal device 18 cannot be connected to the center device body 15. it can.

  As described above, the security system of the present invention is capable of quickly grasping that the global IP address has been changed by the security device, the terminal device, the center device, the DNS server, etc., and the time lag until the change is small. Suitable for security systems using telecommunication lines such as the Internet.

It is a block diagram which shows the structure of the 1st Example of the security system which concerns on this invention. It is a timing chart which shows operation of the security system. It is a timing chart which shows other operations of the security system. It is a timing chart which shows other operation | movement of the security system. It is a block diagram which shows the structure of the 2nd Example of the security system which concerns on this invention. It is a timing chart which shows operation of the security system. It is a timing chart which shows other operations of the security system. It is a timing chart which shows other operation | movement of the security system. It is a block diagram which shows the structure of the 3rd Example of the security system which concerns on this invention. It is a timing chart which shows operation of the security system. It is a timing chart which shows other operations of the security system. It is a timing chart which shows other operation | movement of the security system. It is a block diagram which shows the structure of the 4th Example of the security system which concerns on this invention. It is a timing chart which shows operation of the security system. It is a timing chart which shows other operations of the security system. It is a timing chart which shows other operation | movement of the security system.

Explanation of symbols

1-4 ... Security System 5 ... ISP (Internet Service Provider)
6 ... IP communication network 7 ... DNS (Domain Name System) servers 10, 17 ... Security target facilities 11, 18 ... terminal device 14 ... center device 15 ... center device main body 16, 20 ... IGD (Internet Gateway Device)
21, 31... Address change notification unit 23, 45... Sensor 25, 40. ... Control units 27, 36 ... ... Address notification units 28, 37 ... Web servers 42, 52 ... Web clients

Claims (36)

In security systems that transmit information using telecommunications lines such as the Internet,
On the security target facility side,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
Security equipment having a web server,
The gateway device has an address change notification means for notifying the security device that the global IP address has been changed;
The security device has a notification from the address change notification means, and has an address notification means for notifying the changed global IP address to a terminal device that receives information related to security from the security device. ,
A security system, wherein the terminal device is connected to the security device based on the global IP address of the security device received from the security device.   2. The security system according to claim 1, wherein the gateway device receives an inquiry from the security device and notifies the security device that the global IP has been changed. In security systems that transmit information using telecommunications lines such as the Internet,
On the security target facility side,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
Security equipment having a web server,
The security device makes an inquiry about the global IP address to the gateway device, and has an address notification means for notifying the global IP address to a terminal device that receives information related to security,
The gateway device has an address notification means for receiving an inquiry from the security device and transmitting the global IP address to the security device;
When the security device detects a change in the global IP address received from the gateway device, it notifies the terminal device of the global IP address newly received from the gateway device,
A security system, wherein the terminal device is connected to the security device based on the global IP address of the security device received from the security device. In security systems that transmit information using telecommunications lines such as the Internet,
On the security target facility side,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
Security equipment having a web server,
The gateway device has an address change notification means for notifying the security device that the global IP address has been changed;
The security device has a notification from the address change notification means, and has an address notification means for notifying the DNS server on the telecommunication line of the changed global IP address;
A security system characterized in that a terminal device that receives information related to security from the security equipment is connected to the security equipment via the DNS server.   The security system according to claim 4, wherein the gateway device receives an inquiry about the security device and notifies the security device that the global IP has been changed. In security systems that transmit information using telecommunications lines such as the Internet,
On the security target facility side,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
Security equipment having a web server,
The security device makes an inquiry about the global IP address to the gateway device and has an address notification means for notifying the DNS server on the telecommunication line of the global IP address,
The gateway device has an address notification means for receiving an inquiry from the security device and transmitting the global IP address to the security device;
When the security device detects a change in the global IP address received from the gateway device, the security device notifies the DNS server of the global IP address newly received from the gateway device;
A security system characterized in that a terminal device that receives information related to security from the security equipment is connected to the security equipment via the DNS server. In security systems that transmit information using telecommunications lines such as the Internet,
On the center device side that receives information related to security from security equipment,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
A center device body,
The gateway device has an address change notification means for informing the center device body that the global IP address has been changed;
The center apparatus main body has address notification means for receiving the notification from the address change notification means and notifying the security device of the changed global IP address,
The security system, wherein the security device is connected to the center device main body based on the global IP address of the center device main body received from the center device main body.   8. The security system according to claim 7, wherein the gateway device receives an inquiry from the center device main body and notifies the center device main body that the global IP has been changed. In security systems that transmit information using telecommunications lines such as the Internet,
On the center device side that receives information related to security from security equipment,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
A center device body,
The center apparatus main body has an address notifying unit for inquiring of the global IP address to the gateway apparatus and notifying the security device of the global IP address,
The gateway device has an address notification means for receiving an inquiry from the center device body and transmitting the global IP address to the center device body,
When the center apparatus main body detects a change in the global IP address received from the gateway apparatus, the center apparatus body notifies the security device of the global IP address newly received from the gateway apparatus,
The security system, wherein the security device is connected to the center device main body based on the global IP address of the center device main body received from the center device main body. In security systems that transmit information using telecommunications lines such as the Internet,
On the center device side that receives information related to security from security equipment,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
A center device body,
The gateway device has an address change notification means for informing the center device body that the global IP address has been changed;
The center apparatus main body has address notification means for receiving the notification from the address change notification means and notifying the changed global IP address to a DNS server on the telecommunication line,
The security system, wherein the security device is connected to the center apparatus body via the DNS server.   11. The security system according to claim 10, wherein the gateway device receives an inquiry from the center device main body and informs the center device main body that the global IP has been changed. In security systems that transmit information using telecommunications lines such as the Internet,
On the center device side that receives information related to security from security equipment,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
A center device body,
The center apparatus main body has an address notification means for making an inquiry about the global IP address to the gateway apparatus and notifying the DNS server on the telecommunication line of the global IP address,
The gateway device has an address notification means for receiving an inquiry from the center device body and transmitting the global IP address to the center device body,
When the center apparatus body detects a change in the global IP address received from the gateway apparatus, the center apparatus body notifies the DNS server of the global IP address newly received from the gateway apparatus,
The security system, wherein the security device is connected to the center apparatus body via the DNS server. In security systems that transmit information using telecommunications lines such as the Internet,
On the center device side that receives information related to security from security equipment,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
A center device body,
The gateway device has an address change notification means for informing the center device body that the global IP address has been changed;
The center apparatus main body has an address notification means for receiving a notification from the address change notification means and notifying the changed global IP address to a terminal apparatus that receives information related to security from the center apparatus,
The security system characterized in that the terminal device is connected to the center device body based on the global IP address of the center device body received from the center device body.   14. The security system according to claim 13, wherein the gateway device receives an inquiry from the center device main body and informs the center device main body that the global IP has been changed. In security systems that transmit information using telecommunications lines such as the Internet,
On the center device side that receives information related to security from security equipment,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
A center device body,
The center device main body has an address notification means for making an inquiry about the global IP address to the gateway device and notifying the terminal device that receives the information transmission related to security,
The gateway device has an address notification means for receiving an inquiry from the center device body and transmitting the global IP address to the center device body,
When the center apparatus main body detects a change in the global IP address received from the gateway apparatus, the center apparatus body notifies the terminal apparatus of the global IP address newly received from the gateway apparatus,
The security system characterized in that the terminal device is connected to the center device body based on the global IP address of the center device body received from the center device body. In security systems that transmit information using telecommunications lines such as the Internet,
On the center device side that receives information related to security from security equipment,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
A center device body,
The gateway device has an address change notification means for informing the center device body that the global IP address has been changed;
The center apparatus main body has address notification means for receiving the notification from the address change notification means and notifying the changed global IP address to a DNS server on the telecommunication line,
A security system characterized in that a terminal device that receives information related to security from the center device is connected to the center of the center device via the DNS server.   17. The security system according to claim 16, wherein the gateway device receives an inquiry from the center device main body and informs the center device main body that the global IP has been changed. In security systems that transmit information using telecommunications lines such as the Internet,
On the center device side that receives information related to security from security equipment,
A gateway device that relays information via the telecommunication line with a global IP address assigned by an Internet service provider;
A center device body,
The center apparatus main body has an address notification means for making an inquiry about the global IP address to the gateway apparatus and notifying the DNS server on the telecommunication line of the global IP address,
The gateway device has an address notification means for receiving an inquiry from the center device body and transmitting the global IP address to the center device body,
When the center apparatus body detects a change in the global IP address received from the gateway apparatus, the center apparatus body notifies the DNS server of the global IP address newly received from the gateway apparatus,
A security system characterized in that a terminal device that receives information related to security from the center device is connected to the center of the center device via the DNS server. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
A gateway device that is provided on the security target facility side and relays information via the telecommunication line by a global IP address assigned by an Internet service provider has a web server provided on the security target facility side. Notifying the device that the global IP address has been changed,
After the security device receives a notification that the global IP address has been changed, and notifies the changed global IP address to the terminal device that receives information related to security from the security device,
A connection method of a security system, characterized in that the terminal device connects to the security device based on the global IP address of the security device received from the security device.   20. The security system connection method according to claim 19, wherein the gateway device receives an inquiry about the security device and notifies the security device that the global IP has been changed. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
A gateway device in which a security device having a web server provided on the security target facility side is provided on the security target facility side and relays information via the telecommunication line using a global IP address assigned by an Internet service provider Inquires about the global IP address,
The gateway device receives the inquiry about the security device and transmits the global IP address to the security device.
When the security device detects a change in the global IP address received from the gateway device, a terminal device that receives information about the security from the security device on the newly received global IP address from the gateway device Notify
A connection method of a security system, characterized in that the terminal device connects to the security device based on the global IP address of the security device received from the security device. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
A gateway device that is provided on the security target facility side and relays information via the telecommunication line by a global IP address assigned by an Internet service provider has a web server provided on the security target facility side. Notifying the device that the global IP address has been changed,
After the security device receives a notification that the global IP address has been changed and notifies the DNS server on the telecommunication line of the changed global IP address,
A security system connection method, wherein a terminal device that receives information related to security from the security device is connected to the security device via the DNS server.   23. The security system connection method according to claim 22, wherein the gateway device receives an inquiry about the security device and notifies the security device that the global IP has been changed. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
A gateway device in which a security device having a web server provided on the security target facility side is provided on the security target facility side and relays information via the telecommunication line using a global IP address assigned by an Internet service provider Inquires about the global IP address,
The gateway device receives the inquiry about the security device and transmits the global IP address to the security device.
When the security device detects a change in the global IP address received from the gateway device, it notifies the DNS server on the telecommunication line of the global IP address newly received from the gateway device;
A security system connection method, wherein a terminal device that receives information related to security from the security device is connected to the security device via the DNS server. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
A gateway device that is provided on a center device side that receives information on security from a security device and relays information via the telecommunication line using a global IP address assigned by an Internet service provider. Notify the center unit that it has been changed,
After the center device main body receives a notification that the global IP address has been changed and notifies the security device of the changed global IP address,
A security system connection method, wherein the security device is connected to the center device body based on the global IP address of the center device body received from the center device body.   26. The security system connection method according to claim 25, wherein the gateway device receives an inquiry from the center device main body and notifies the center device main body that the global IP has been changed. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
The center device main body on the center device side that receives information related to security from the security equipment is provided on the security target facility side, and relays information via the telecommunication line by the global IP address assigned by the Internet service provider. Inquires the gateway device for the global IP address,
The gateway device receives the inquiry from the center device body, and transmits the global IP address to the center device body.
When the center apparatus main body detects a change in the global IP address received from the gateway apparatus, the center apparatus body notifies the security device of the global IP address newly received from the gateway apparatus,
A security system connection method, wherein the security device is connected to the center device body based on the global IP address of the center device body received from the center device body. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
A gateway device that is provided on a center device side that receives information on security from a security device and relays information via the telecommunication line using a global IP address assigned by an Internet service provider. Notifying the center device main body of the change,
After the center apparatus body receives the notification that the global IP address has been changed and notifies the DNS server on the telecommunication line of the changed global IP address,
The security system connection method, wherein the security device is connected to the center device body via the DNS server.   29. The security system connection method according to claim 28, wherein the gateway device receives an inquiry from the center device main body and notifies the center device main body that the global IP has been changed. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
The center device main body on the center device side that receives information related to security from the security equipment is provided on the security target facility side, and relays information via the telecommunication line by the global IP address assigned by the Internet service provider. Inquires the gateway device for the global IP address,
The gateway device receives the inquiry from the center device body, and transmits the global IP address to the center device body.
When the center apparatus main body detects a change in the global IP address received from the gateway apparatus, the center apparatus body notifies the DNS server on the telecommunication line of the global IP address newly received from the gateway apparatus,
The security system connection method, wherein the security device is connected to the center device body via the DNS server. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
A gateway device that is provided on a center device side that receives information on security from a security device and relays information via the telecommunication line using a global IP address assigned by an Internet service provider. Notifying the center device main body of the change,
After the center device main body receives a notification that the global IP address has been changed and notifies the changed global IP address to a terminal device that receives information related to security from the center device,
A connection method of a security system, wherein the terminal device connects to the center device main body based on the global IP address of the center device main body received from the center device main body.   32. The security system connection method according to claim 31, wherein the gateway device receives an inquiry from the center device main body and informs the center device main body that the global IP has been changed. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
The center device main body on the center device side that receives information related to security from the security equipment is provided on the security target facility side, and relays information via the telecommunication line by the global IP address assigned by the Internet service provider. Inquires the gateway device for the global IP address,
The gateway device receives the inquiry from the center device body, and transmits the global IP address to the center device body.
When the center apparatus main body detects a change in the global IP address received from the gateway apparatus, the global IP address newly received from the gateway apparatus is transmitted to the terminal apparatus that receives information related to security from the center apparatus. Notify
A connection method of a security system, wherein the terminal device connects to the center device main body based on the global IP address of the center device main body received from the center device main body. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
A gateway device that is provided on a center device side that receives information on security from a security device and relays information via the telecommunication line using a global IP address assigned by an Internet service provider. Notifying the center device main body of the change,
After the center apparatus body receives the notification that the global IP address has been changed and notifies the DNS server on the telecommunication line of the changed global IP address,
A security system connection method, wherein a terminal device that receives information related to security from the center device is connected to the center of the center device via the DNS server.   35. The security system connection method according to claim 34, wherein the gateway apparatus receives an inquiry from the center apparatus main body and notifies the center apparatus main body that the global IP has been changed. In the connection method of a security system that transmits information using a telecommunication line such as the Internet,
The center device main body on the center device side that receives information related to security from the security equipment is provided on the security target facility side, and relays information via the telecommunication line by the global IP address assigned by the Internet service provider. Inquires the gateway device for the global IP address,
The gateway device receives the inquiry from the center device body, and transmits the global IP address to the center device body.
When the center apparatus main body detects a change in the global IP address received from the gateway apparatus, the center apparatus body notifies the DNS server on the telecommunication line of the global IP address newly received from the gateway apparatus,
A security system connection method, wherein a terminal device that receives information related to security from the center device is connected to the center of the center device via the DNS server.

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