KR20070082176A - Dynamic service allocation gateway system and the method for plug&play in the ubiquitous environment - Google Patents

Abstract

A gateway system for automatically allocating a service for plug and play in a ubiquitous environment and a method thereof are provided to enable a device to automatically request an address and a communication port of a server for the service after making an access to a network. A gateway system for automatically allocating a service for plug and play in a ubiquitous environment comprises a communication port receiver(21), a TCP/IP unit(22), a receipt processor(23), a list storage unit(24) and a health checking unit(25). The communication port receiver(21) receives a communication port request of a device application. The TCP/IP unit(22) transmits the communication port request of the application to a host based service gateway by using a TCP/IP packet or a default gateway of the same link. The receipt processor(23) receives a service request of the device and transmits the received service request to a server for the service. The list storage unit(24) stores a list of the servers for the service. The health checking unit(25) checks whether communication with the server is possible.

Description

Dynamic Service Allocation Gateway System and the Method for Plug & Play in the Ubiquitous environment

1 is a configuration diagram of a communication setting system of a conventional IP network environment.

2 is a block diagram of a service automatic allocation gateway system according to an embodiment of the present invention.

3 is a block diagram of a service automatic allocation gateway system according to another embodiment of the present invention.

4 is a flowchart illustrating a service automatic allocation gateway method according to an embodiment of the present invention.

5 and 6 are flowcharts illustrating a service automatic allocation gateway method according to an embodiment of the present invention.

7 and 8 are flowcharts illustrating a method for automatically assigning a gateway upon authentication approval according to another embodiment of the present invention.

9 and 10 are flowcharts illustrating a method for automatically assigning a gateway when an authentication fails according to another embodiment of the present invention.

11 is an explanatory diagram of a message format according to another embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

1: service automatic assignment gateway system, 2: service gateway,

3: device, 4: service server,

21: communication port receiving section, 22: TCP / IP section,

23: reception processing unit, 24: list storage unit,

25: Health checking section, 26: Authentication request module,

41: Authentication response module.

The present invention relates to an automatic communication setting system and method, and more particularly, in a ubiquitous environment based on an IP network, various network devices access an address of a service server of a specific service without a user's artificial configuration procedure for accessing a service. The present invention relates to a service automatic allocation gateway system and method for plug and play in a ubiquitous environment that can provide a network plug & play function that can be serviced simultaneously with a network connection by automatically allocating to a network.

Recently, due to the emergence of numerous network-based devices and related services in the ubiquitous environment, the IP network is based on IPv6, and the address input and management of devices according to the IP address expansion is changing to a more complicated shape.

1 is a block diagram showing a communication setting system in an environment based on a conventional IP network.

Conventionally, as shown in FIG. 1, basic network access is provided by automatically allocating IP in a network environment. However, when the device 300 wants to access a service for a special purpose, the service server 400 provides a corresponding service. Setting had to be done separately.

In addition, IPv6, a new IP addressing scheme developed to improve the shortcomings of IPv4, which is currently being used, is an abbreviation of Internet Protocol version 6, and IPv4 has 42 billion addresses in 32-bit addressing scheme. It has an almost infinite number of addresses with 2 ¹²⁸ bit addressing system, but as the length of the address is extended, it is not easy to input 128 bits of IPv6 one by one, and all the squishy ones have to replace IP address with URL. The trouble of registering the server in DNS remains a problem.

Especially for small devices with limited user environment, this task is complicated because the hard coating is performed when developing the service server IP or URL to register the service server to the device, and each device is changed when the server IP or URL is changed. This requires a lot of procedures and costs.

In addition, in this case, the manufacturing cost of the device is inevitably increased due to the provision of an expensive user input environment caused by a change in the IP or URL of the server to a low-cost small device.

SUMMARY OF THE INVENTION The present invention was created to solve the above problems, and an object of the present invention is to automatically allocate a service for plug and play in a ubiquitous environment in which a device can automatically request a service server's address and communication port after network connection. A gateway system and method are provided.

In order to achieve the above object, a service automatic allocation gateway system including a device for providing a ubiquitous network Plug & Play service, a service gateway, and a service server is provided. A communication port receiving unit capable of receiving a communication port request; A TCP / IP unit for transmitting a communication port request of the application to a host-based service gateway using a default gateway or broadcast on the same link using a TCP / IP packet; A reception processor which receives a service request of a device and transmits the service request to the service server; A list storage unit for storing a list of the service server; A health checking unit for checking whether communication with the service server is possible; Characterized in that configured.

In addition, the service gateway may be mounted on the device or the service server.

Preferably, the service gateway includes an authentication request module for performing a separate authentication request from the service server when the service access right of the device is required, and the service server responds to the service authentication request of the gateway. It may include an authentication response module for performing.

In addition, the service gateway may preferentially assign an address to a service server having a low load by status information such as the load status of the service servers currently provided by the service server.

In order to achieve the above object, a service automatic allocation gateway method comprising a device for providing a ubiquitous network Plug & Play service, a service gateway, and a service server is provided. When the communication port request is received from the communication port receiving unit and transmitted to the TCP / IP unit, the TCP / IP unit transmits the requested communication port using a TCP / IP packet to a host-based service using a default gateway or brotocasting on the same link. When the device requests a service, the device transmits the data to a gateway and receives the received data from the reception processor. The health checker checks the communication status with the service server and receives the communication information from the service server. List information is Assigned the optimal service server address stored in the list storage unit contained in the device application is characterized in that service.

When the service gateway needs to check the service access right of the device, the service gateway performs a separate authentication request to the authentication response module of the service server through an authentication request module. By transmitting communication information to the service gateway, the device receives the automatic address assignment service normally, and if authentication is not approved, only the authentication failure information is transmitted to the service gateway to prevent the device from receiving the automatic address assignment service normally. It is done.

Preferably, the service gateway is characterized by preferentially assigning an address to a service server having a low load by status information such as the load status of the service servers currently provided by the service server.

The service gateway may operate in the device or the service server. The device may access primary, secondary, and tertiary service servers of the service servers when a failure of the service server occurs by the service health checking unit. It is characterized by that it was possible to.

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention.

FIG. 2 is a diagram illustrating a configuration of a service automatic allocation gateway system 1 for plug and play according to an embodiment of the present invention. The network of the device 3, the service gateway 2, and the service server 4 is shown in FIG. The structure is shown.

Preferably, the illustrated device 3 is a device capable of communicating by inserting a computer into an apparatus or an object such as a car, a refrigerator, glasses, a clock, a stereo equipment, etc. in a ubiquitous environment, and the service server 4 is connected to the device 3. It is a device that provides Internet connection service.

The service gateway 2 is a communication port receiving unit 21 that can receive a communication port that the device 3 intends to use so that the device 3 automatically assigns an address so that the device 3 can receive a specific service from the service server 4. ), The service request of the TCP / IP unit 22 and the device 3, which can transmit the communication port to a host-based service gateway using a default gateway or brotocasting on the same link using a TCP / IP packet. A reception processor 23 for receiving and transmitting to the service server 4, a list storage unit 24 for storing a list of the service server 4, and a health checking unit for confirming communication with the service server 4 ( 25).

Preferably, in the ubiquitous environment, the service gateway 2 may be mounted on the device 3 or the service server 4.

In addition, the service gateway 2 allocates addresses in order of serial number of the service server by checking the communication state of the service server 4 received by the reception processor 23 and automatically adjusting service server address assignment. Automatically so that the state of the service server 4 is optimal by assigning addresses in order of low load of the service server, randomly assigning addresses, or assigning addresses to a plurality of servers instead of a single service server. Assign an address.

3 is a diagram illustrating a configuration of a service automatic allocation gateway system for plug and play according to another embodiment of the present invention, wherein a service server is needed when the service gateway 2 checks the service access authority of the device 3; Figure 4 shows the structure of a system that performs a separate authentication procedure.

The service gateway 2 requests the service server 4 to authenticate the device 3 through the authentication request module 26 when it is necessary to check the service access right of the device 3. The authentication response module 41 performs a response to the authentication.

4 is a flowchart showing a service automatic allocation gateway method according to an embodiment of the present invention.

When the service gateway 2 receives the communication port request of the device 3 application from the communication port receiving unit 21 and transmits it to the TCP / IP unit 22 (S100), the TCP / IP unit 22 transmits the requested communication. The port is transmitted to a host-based service gateway using a default gateway or brotocasting on the same link using a TCP / IP packet (S200). When the device 3 requests a service, the port is received by the reception processor 23. Transmitting to the service server (4) (S300), the health check unit 25 checks the communication state with the service server and receives the communication information from the service server (S400) containing the list information of the service server The optimal service server address stored in the list storage unit 24 is allocated to the device application (S500) for service.

Table 1 is a table showing an example of storing and managing in the list storage unit 24.

Interface #One. Service port 100 Service name ABC Service type UDP Service Server # 1 X.X.X.X Service Server # 2 Y.Y.Y.Y Allocation Rule Random, sequential, load order Description 1.100.ABC Authentiation Certified, certified Health check On, Off Health check way PING load management

The list storage unit 24 stores a setting in which Interface is indicated by # 1 and a service port which is a designated communication port setting is 100. The service name to be provided by the device 3 is recorded as ABC in Service Name, and the Service Type is set to UDP. In addition, the plurality of service servers 4 are divided into Service Server # 1 and Service Server # 2 and stored as XXXX YYYY, respectively, so that the service server 4 automatically turns the device 3 into a normal service server 4 when a problem occurs. Assign an address.

The Allocation Rule, which is a method of arranging the address of the service server 4, can be set in a random, sequential, or load order. The information connected by the device 3 is ABC which uses the service port 100 as interface 1 in the description. Registered in the form of a service. Authentication can be set to no authentication or authentication for authentication, and the function of Health Check that checks the status of the server 4 can also be set to On or Off. In addition, the health checking method is checked by Ping or load management by Health Check Way, and the server responds by considering 1 ~ 5, considering the number of sessions, memory, CPU, etc. up to 1,2,3,4,5 Can be used.

It is also possible to provide a regional management based on the interface, location-based services using the same.

That is, in a mobile communication network, a specific gateway may set a service interface for each region to provide a specific customized service according to the interface. For example, when a user receives a data service in Gangwon-do, he / she may display weather information, event events, and the like in Gangwon-do and make use of local characteristics.

5 and 6 are flowcharts illustrating a method for automatically assigning a gateway system for plug and play according to an embodiment of the present invention.

When the device 3 transmits a service request to the service gateway 2 to access the service server (S1), the service gateway 2 requests a status check from the service server 4 in response to the service request (S1). S2), if the service server 4 transmits a status response corresponding to the status check request to the service gateway 2 (S3), the service gateway 2 assigns a service server address assignment in response to the status response. (S4) the device starts communication with the service server (4).

Here, if the service gateway 2 automatically describes the address assignment process to the device 3 in more detail (not shown), the service gateway 2 selects the communication port that the device 3 intends to use for the communication port receiving unit 21. And the communication port is transmitted from the TCP / IP unit 22 to a host-based service gateway using a default gateway or brotocasting on the same link using a TCP / IP packet. Receives the service request and receives it from the reception processing unit 23 and transmits it to the service server 4. The health checking unit 25 checks whether communication with the server is possible and receives communication information from the service server 4. In response, the optimal service server address of the list storage unit 24 including the server list information is allocated and transmitted to the device 3.

In addition, the service gateway 2 operates in the device 3 or the service server 4.

Preferably, the service gateway 2 checks the communication state of the service server 4 and allocates the addresses in the order of the serial number of the service server 4, or allocates the addresses in the order that the load of the service server 4 is light. Service server address allocation is automatically adjusted by randomly assigning addresses or assigning addresses to multiple servers instead of a single service server.

In addition, the service server 4 may provide a backup system so that when the service server 4 fails, the device 3 may be connected to a backup system such as primary, secondary, and tertiary.

7 and 8 are flowcharts showing a method of automatically assigning a gateway system for plug and play according to another embodiment of the present invention, and a service server (if necessary) for checking service access authority of the device 3 in the service gateway 2 is shown. It shows that the device 3 authentication is approved by performing a separate authentication procedure from 4).

When the device 3 requests the service (S10), the service gateway 2 needs to check the service access authority of the device 3, and when the device 3 requests the service server 4 through the authentication request module 26, the device 3 Request authentication (S11), and in response, the authentication response module 41 of the service server 4 approves the communication information so that the service gateway 2 can automatically assign an address to the device 3 automatically. (S12), the service gateway (2) normally assigns the service server address automatically (S13).

9 and 10 are flowcharts illustrating a method of automatically assigning a gateway system for plug and play according to another embodiment of the present invention, and a service server (if necessary) for checking service access authority of the device 3 in the service gateway 2 is shown in FIG. It shows that authentication of the device 3 fails by performing an authentication procedure separate from 4).

When the device 3 requests the service (S20), the service gateway 2 needs to check the service access authority of the device 3, and when the device 3 requests the service server 4 through the authentication request module 26, the device 3 Request authentication (S21), and if the authentication fails in the authentication response module 41 of the service server (4) correspondingly transmits only authentication failure information to the service gateway (2) (S22) to the device (3) By not transmitting a response to the device 3 so as not to automatically assign an address, communication between the device 3 and the service server 4 is not made (S23), thereby preventing the service server from being exposed for security. .

In addition, the service server 4 may provide a backup system so that when the service server 4 fails, the device 3 may be connected to a backup system such as primary, secondary, and tertiary.

11 illustrates the message format of FIG. 8 in accordance with another embodiment of the present invention.

When the device 3 sends a service request message (service type / service port) requesting the service to the service gateway 2, the service gateway 2 sends information (device IP address / device ID) for authentication of the device. When the response result is not approved in the authentication response module 41 of the service server 4 through the authentication request module 26, the response result (unapproved) form It is transmitted to the authentication request module 26 of the service gateway 2 so that the service gateway 2 does not respond to the device 3, so that the device 3 and the service server 4 do not communicate.

As described above, a service automatic allocation gateway system and method for providing a ubiquitous network Plug & Play service according to the present invention automatically installs a device to provide a service to a device. Easy to install, reducing installation and manufacturing costs.

In addition, when the service server fails, the device can access the backup system such as primary, secondary, and tertiary, thus minimizing damage to the failure of the business system and setting the service gateway not to concentrate the load on a specific service server. This prevents the system from overloading.

That is, in the case of using the service automatic allocation device and gateway of the present invention as described above, the device can not only support plug and play, which can be connected to the service server without separate setting at the same time as network connection, but also distribute the load of the service server In addition, service failure can be minimized through the backup system connection procedure.

In addition, through the configuration of the service server for each interface of the service gateway, it is possible to provide an environment capable of regionally managing services and providing services differentiated locally.

Claims (10)

In the IP automatic assignment network access system consisting of a device, a service gateway and a service server, The service gateway 2 includes a communication port receiving unit 21 capable of receiving a communication port request of the device application; A TCP / IP unit 22 capable of transmitting a communication port request of the application to a default gateway of a same link using a TCP / IP packet or to a host based service gateway; A reception processor 23 which receives a service request of the device 3 and transmits the service request to the service server 4; A list storage unit 24 for storing a list of the service server 4; A health check unit 25 for checking whether communication with the service server 4 is possible; Service automatic assignment gateway system for plug and play in ubiquitous environment The method of claim 1, The service gateway 2 is mounted on the device 3 or the service server 4, the service automatic allocation gateway system for plug and play in a ubiquitous environment The method of claim 1, The service gateway 2 includes an authentication request module 26 for performing a separate authentication request with the service server 4 when necessary to check the service access rights of the device 3, The service server 4 includes an authentication response module 41 for performing a response to the service authentication request of the gateway 2. The automatic service assignment gateway system for plug and play in a ubiquitous environment. The method of claim 1, In the ubiquitous environment, the service gateway 2 preferentially allocates an address to a service server having a low load based on state information such as the load state of the service servers currently provided by the service server 4. Service automatic assignment gateway system for play In the IP auto-allocation network access method consisting of a device, a service gateway and a service server, When the service gateway 2 receives the communication port request of the device from the communication port receiving unit 21 and transmits it to the TCP / IP unit 22 (S100), the TCP / IP unit 22 transmits the requested communication port. Is transmitted to a host-based service gateway using a default gateway or brotocasting on the same link using a TCP / IP packet (S200), and when the device requests a service, it is received by the receiving processor 23 to receive the service server. (S300), the health checking unit 25 checks the communication state with the service server and receives the communication information from the service server (4) (S400) includes the list information of the service server A service for plug and play in a ubiquitous environment, characterized by assigning (S500) an optimal service server address stored in the stored list storage unit 24 to the device application. Vis Auto Assign Gateway method. The method of claim 5, The service gateway 2 performs a separate authentication request to the authentication response module 41 of the service server through the authentication request module 26 when it is necessary to check the service access right of the device 3 (S10). S11) If the authentication is approved, the communication information of the service server 4 together with the authentication approval information is transmitted to the service gateway 2 (S12) so that the device receives the automatic service server 4 address assignment service normally. In operation S13, if authentication is not approved, only authentication failure information is transmitted to the service gateway 2 (S22) to prevent the device 3 from normally receiving an automatic address assignment service (S23). To automatically assign services for Plug and Play on Windows. The method of claim 5, The service gateway 2 preferentially assigns an address to a service server having a low load based on state information such as the load state of the service servers currently provided by the service server, for plug and play in a ubiquitous environment. Service auto-allocation gateway method. The method of claim 5, The service gateway (2) is a service automatic allocation gateway method for plug and play in a ubiquitous environment, characterized in that for operating in the device or the service server. The method of claim 5, In the ubiquitous environment, the device may be connected to the primary, secondary and tertiary service servers 4 of the service servers when a failure of the service server occurs by the service health checking unit 25. Service Allocation Gateway Method for N & Play. The method of claim 5, The service gateway (2) is a service gateway (2) service automatic allocation gateway method for plug and play in a ubiquitous environment, characterized in that the specific service gateway (2) can provide a customized service by dividing the service by region.

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