KR100794019B1 - Home network control system and method by the use of simple network management protocol - Google Patents

Abstract

The present invention relates to a home network, comprising: a home network in which an IP device and a non-IP device coexist, comprising: an IP-based SNMP server connected to the home network and interworking with the IP device; Connected to the home network, and loads event information generated from the non-IP device into an SNMP trap packet corresponding to the SNMP server based on IP, and converts and provides event information of the non-IP device to the SNMP server. and a home gateway to allow the event information of a non-IP device to interwork with the SNMP server. Accordingly, SNMP, which is a representative standard protocol, can be applied to a home network system in which an IP device and a non-IP device coexist. SNMP can be used as it is without the need to develop protocols, which makes the home network more convenient.

Description

Home network control system and method by the use of simple network management protocol

1 is a block diagram showing a home network control system using a simple network management protocol according to the present invention.

2 is a block diagram illustrating a home gateway of a home network control system using a simple network management protocol according to the present invention.

3 is an exemplary view showing a trap packet configuration of a home network control system using a simple network management protocol according to the present invention.

4 is a flowchart illustrating a home network control method using a simple network management protocol according to the present invention.

** Description of the symbols for the main parts of the drawings **

100: SNMP server

200: home gateway

202: IP interface

204: non-IP interface

210: SNMP agent

220: SNMP module

230: MIB

310: non-IP device

The present invention relates to a control system and a control method using a simple network management protocol, and more particularly, a simple network management protocol for controlling a non-IP device on a home network using a simple network management protocol, which is an IP-based protocol. The present invention relates to a home network control system and a control method.

Typically, the Simple Network Management Protocol (hereinafter referred to as 'SNMP') is a representative network management protocol, which is already used in most network management systems as a world standard protocol.

In addition, this SNMP provides IP-based hardware (such as routers, bridges, hubs, ATM software, Ethernet switches and modems) and software (operating system, network layer) that connect to networks such as the Internet / Intranet. And application programs, etc.) is a general management framework for the Internet that allows its status to be provided through a Management Information Base (MIB).

SNMP has an advantage of being easy to understand and implement, small in size of agent, and easy to expand MIB, which is a database to be managed. In addition, the SNMP PDU (Protocol Data Unit) is easy to port to other network protocols.

Therefore, SNMP can be widely applied not only to TCP / IP but also to networks based on ISO Connection Less Network Protocol (CLNP), Apple Talk Datagram Delivery Protocol (DDR), Novell Internetwork Packet Exchange (IPX), etc. It is expected to be easily applied to new network protocols in the future.

On the other hand, in recent years, with the development of communication technology, a home network system for remotely controlling various digital information devices existing in a home has been developed.

The home network system enables one-way or two-way data communication based on a local area network (LAN) or a wide area network (WAN) to interoperate with various devices in the home network system.

Such a home network system is a situation in which a developer developing a home network system develops and uses its own protocol for controlling various devices existing in the home network system.

As such, each company developing a home network system develops its own protocol because of the existence of non-standardized IP-based devices as well as standardized IP-based devices. This is because there are irrational problems.

Therefore, in the case of SNMP as described above, although it is a representative network management protocol used in most IP-based network systems as a world standard protocol, there is a problem in that it is difficult to apply to a home network system where IP devices and non-IP devices coexist.

Accordingly, in order to connect a home network system in which IP devices and non-IP devices coexist with an IP-based network system, a separate protocol for interworking with non-IP devices has to be developed.

The present invention has been made to solve the above problems, to provide a home network control system and control method using a simple network management protocol that can interoperate non-IP devices connected to the home network using SNMP. The purpose is.

Home network control system using a simple network management protocol according to the present invention for achieving the above object, in a home network where IP devices and non-IP devices coexist, is connected to the home network is interlocked with the IP device IP-based SNMP server; Connected to the home network, and loads event information generated from the non-IP device into an SNMP trap packet corresponding to the SNMP server based on IP, and converts and provides event information of the non-IP device to the SNMP server. and a home gateway for allowing the event information of the non-IP device to interwork with the SNMP server.

The SNMP server and the home gateway are provided with MIBs each corresponding to the information of the non-IP device and the event information generated from the non-IP device.

The MIB provided in the home gateway further includes an OID mapping table for mapping the event information generated from the non-IP device and the non-IP device.

The home gateway comprises: an IP interface for connecting to the IP-based network; A non-IP based interface for connecting to the non-IP based network; And an SNMP agent for loading the event information of the non-IP device received through the non-IP based interface into an SNMP trap packet corresponding to the SNMP server.

A home network control method using a simple network management protocol according to the present invention for achieving the above object is a method for processing event information of the non-IP device in a home network where IP devices and non-IP devices coexist. Receiving the event information generated in the non-IP device; An event loading step of loading the received event information into the SNMP trap packet by loading the event information and information of the non-IP device generating the event information; And transmitting the SNMP trap packet loaded with the event information and information of the non-IP device generating the event information to an SNMP server provided to control an IP device.

The event loading step extracts and extracts information of the non-IP device generating the event information from a MIB in which the event information and the information of the non-IP device generating the event information are mapped and stored. Information of the IP device and the event information are loaded into the SNMP trap packet.

Hereinafter, a home network control system and a control method using a simple network management protocol according to the present invention will be described in detail with reference to the accompanying drawings.

In the description of the present invention, the names of the elements defined are defined in consideration of functions in the present invention, and should not be understood as meanings that limit the technical elements of the present invention. May be referred to by other names in the art. In addition, the code added to each component is described for convenience of description, and the contents shown in the drawings in which these codes are described do not limit each component to the range in the drawing. In addition, as long as the functional similarity and identity thereof, even if the modified embodiment is adopted, it can be seen as an equivalent configuration, and even if the embodiment in which the modified part of the configuration is employed, it can be seen as an equivalent configuration.

First, a home network control system using a simple network management protocol according to the present invention will be briefly described with reference to the accompanying drawings.

1 is a block diagram showing a home network control system using a simple network management protocol according to the present invention, Figure 2 is a block diagram showing a home gateway of a home network control system using a simple network management protocol according to the present invention, 3 is an exemplary diagram showing a trap packet configuration of a home network control system using a simple network management protocol according to the present invention.

As shown in FIG. 1, a home network control system using a simple network management protocol according to the present invention includes an SNMP server (or SNMP manager) 100 interworking with a network using an IP-based protocol, and a home network 10. IP-based IP device 320 and non-IP-based non-IP device 310 existing on the), and the home gateway 200 connecting the SNMP server 100 and the home network 10 is provided .

Here, the communication network connecting the SNMP server 100 and the home gateway 200 may be, for example, an Internet network that satisfies TCP / IP, and each device 310 on the home gateway 200 and the home network 10. , 320) may be a wired or wireless communication network that satisfies PLC, RS485, ZigBee, and the like.

As shown in FIG. 2, the home gateway 200 includes an IP interface 202 for connecting to an IP-based SNMP server 100 and various non-IP devices based on the non-IP network of the home network 10. A non-IP interface 204 for connecting to the 310 and an SNMP agent 210 for receiving event information generated from the non-IP device 310 and loading it in the SNMP trap packet 20 (see FIG. 3). ).

In addition, the home gateway 200 is provided with a MIB (Management Information Base) 230 including general information and event information of the non-IP device 310, the items that are generally managed on the communication network It is defined.

The MIB 230 of the home gateway 200 includes an object ID of an non-IP device 310 for mapping event information generated from the non-IP device 310 and the non-IP device 310. OID) may further have an OID, and when the MIB 230 includes an OID, an OID for mapping event information generated from the non-IP device 310 and the non-IP device 310. A mapping table (not shown) may be further provided.

In addition, the home gateway 200 includes an SNMP agent 210 for collecting unspecified event information originating from various devices 310 and 320 on the home network 10, and the SNMP agent 210 receives event information received by the home gateway 200. SNMP module 220 for configuring the SNMP trap packet 20 using a.

The SNMP trap packet 20 configured by the SNMP module 220 may include a version, a community, an SNMP PDU (Physical Data Unit) as shown in FIG. 3, and the PDU is included in the PDU. PDU type, agent address, generic type, specific trap, time stamp, variable-bindings, enterprise, etc. It may be made, including.

In this case, the event information received by the SNMP agent 210 may be inserted by the SNMP module 220 into the Pacific trap of the SNMP PDU. In addition, the SNMP module 220 extracts a value corresponding to the event information from the MIB 230 according to the event information inserted into the spectral trap, and the rest of the SNMP trap packet 20 (PDU type, agent address, generic). Type, time stamp, variable binding, enterprise, etc.).

The SNMP server 100 may be implemented as a server composed of a personal computer generally used for IP communication or a wired / wireless terminal capable of IP communication (for example, a portable telephone, a PDA, etc.).

In addition, the SNMP server 100 is provided with the same MIB (not shown) as the MIB 230 provided in the home gateway 200 to read the SNMP trap packet 20 transmitted from the home gateway 200. . Here, the configuration of the same MIB between the SNMP server 100 and the home gateway 200 may be implemented by various embodiments, and thus detailed description thereof will be omitted.

The IP device 320 refers to an IP-based device existing on the home network 10. The IP device 320 is connected to the home network, and operates on a personal computer, PDA, network camera, etc. (or IP-based operation). Digital home appliances, etc.). The IP device 320 may communicate with the SNMP server 100 in both directions and may be controlled by the SNMP server 100, and each may perform an operation of an independent SNMP agent.

The non-IP device 310 refers to a non-IP-based device existing on the home network 10, and includes a non-IP-based device such as a gas detector, a motion detector, and a fire detector connected to the home network. The device may be connected to the IP device 320 and may be a sensing device (not shown) that detects an operation state of the IP device.

The non-IP device 310 is provided to transmit unique event information according to each function. In addition, the non-IP device 310 is not possible to control by the SNMP server 100, but is provided to send the status of the device itself (or the detection information of the IP device 320 to be detected) as event information.

Meanwhile, as described above, the IP device 320 and the non-IP device 310 coexist on the home network 10. In the present invention, the IP device 320 and the non-IP device 310 are divided into the IP device 320 and the non-IP device 310. This is not classified by the function and use of each device (310, 320), it is divided into a control base that is controlled on the home network (10). Therefore, a description of the functions and uses of the respective devices (310, 320) will be omitted.

Accordingly, the operation of the home network control system using the simple network management protocol according to the present invention will be described in detail by way of examples. Each of the elements mentioned below should be understood with reference to the above description and FIGS. 1 to 3.

4 is a flowchart illustrating a home network control method using a simple network management protocol according to the present invention.

Here, the home network control method using the simple network management protocol according to the present invention is for interworking the non-IP device 310 to the IP-based network, and the interworking of the IP device 320 will blur the gist of the present invention. Its description may be omitted.

First, when a situation in which the event signal generation condition is satisfied in the non-IP device 310 is formed, the non-IP device 310 transmits event information corresponding to the situation on the home network 10 (step S110). ).

Event information generated in the non-IP device 310 is detected by the SNMP agent 210 formed in the home gateway 200 through the home network 10 (step S120). Meanwhile, the event information detected by the SNMP agent 210 is loaded into the SNMP trap packet 20 by the SNMP module 220 of the SNMP agent 210 (step S130).

Here, the SNMP module 220 extracts information of the non-IP device 310 corresponding to the event information from the MIB 230 based on the event information loaded in the SNMP trap packet 20, and extracts the non-IP device. The SNMP trap packet 20 is configured by combining the information of 310 and the event information.

Thereafter, the SNMP agent 210 transmits the SNMP trap packet 20 configured by the event information and the information of the non-IP device 310 corresponding to the event information to the SNMP server 100 through the IP interface 202. (Step S140).

The SNMP server 100 receives the transmitted SNMP trap packet 20, compares the received SNMP trap packet 20 with the MIB provided in the SNMP server 100, reads the SNMP trap packet 20, and Information of the IP device 310 and event information of the non-IP device 310 are separated (step S150).

Thereafter, the SNMP server 100 transmits the read information of the non-IP device 310 and the event information of the non-IP device 310 to the user (step S160). Therefore, the user can determine the state of the non-IP device 310 on the home network in the IP-based network.

Although described in detail with respect to preferred embodiments of the present invention as described above, those of ordinary skill in the art, without departing from the spirit and scope of the invention as defined in the appended claims Various modifications may be made to the invention. Therefore, changes in the future embodiments of the present invention will not be able to escape the technology of the present invention.

For example, the component of the present invention may be implemented by adding a component having another additional function or replacing the component with another component. However, all other modified embodiments include the essential elements of the present invention should be considered to be included in the technical scope of the present invention.

As described above, according to the home network control system and control method using a simple network management protocol according to the present invention, by providing an IP-based network system, and a non-IP-based home gateway to connect the home network, SNMP, a standard protocol, can be applied to home network systems where IP devices and non-IP devices coexist.

In addition, in order to connect a home network system where IP devices and non-IP devices coexist with an IP-based network system, SNMP can be used as it is, without developing a separate protocol for interworking non-IP devices. There is an effect to build a network.

Claims (6)

In home network where IP device and non-IP device coexist, An IP-based SNMP server connected to the home network and interworking with the IP device; Connected to the home network, and loads event information generated from the non-IP device into an SNMP trap packet corresponding to the SNMP server based on IP, and converts and provides event information of the non-IP device to the SNMP server. and a home gateway for allowing the event information of a non-IP device to interwork with the SNMP server. The method of claim 1, The SNMP server and the home gateway each have a MIB for storing the non-IP device information and the event information generated from the non-IP device, respectively. Control system. The method of claim 2, The MIB provided in the home gateway is further provided with an OID mapping table for mapping the event information generated from the non-IP device and the non-IP device home network control system using a simple network management protocol . The method of claim 1, wherein the home gateway, An IP interface for connecting to the IP-based network; A non-IP interface for connecting to the non-IP based network; And an SNMP agent for loading the event information of the non-IP device received through the non-IP interface into an SNMP trap packet corresponding to the SNMP server. A method for processing event information of a non-IP device in a home network where an IP device and a non-IP device coexist, An event receiving step of receiving the event information generated in the non-IP device; An event loading step of loading the received event information into the SNMP trap packet by loading the event information and information of the non-IP device generating the event information; Sending the SNMP trap packet loaded with the event information and the information of the non-IP device generating the event information to an SNMP server provided to control the IP device to control the non-IP device from the SNMP server Packet transmission step; Home network control method using a simple network management protocol comprising a. The method of claim 5, wherein the event loading step, Extracting information of the non-IP device generating the event information from the MIB in which the event information and the information of the non-IP device generating the event information are mapped and stored; The home network control method using a simple network management protocol, characterized in that for loading the event information in the SNMP trap packet.

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