KR20070036892A - Method for changing slave device address in home network system - Google Patents

Abstract

The present invention relates to a slave device address change method in a home network system. For example, when a address change request message is transmitted from a master device connected to a home network, the slave device receives the corresponding address. By transmitting a response message, including the new address information in the response message, so that the master device other than the master device, to accurately know the new address of the slave device, and further, in the slave device, Create an event message notifying change to a new address, and transmit it to a master or slave device connected through a home network, and transmit the previous address information including the previous address information in the event message, thereby receiving the master or slave. In the device, it is extremely useful inventions which can be the to update managing the new address of the slave device, effectively prevent the error caused by the slave device address change of the home network system.

Home network system, master, slave, logical address, request message, response message, event message

Description

How to change slave device address in home network system {Method for changing slave device address in home network system}

1 shows a configuration of a general home network system,

2 and 3 illustrate a request message and a response message transmitted / received between a master and a slave to which the present invention is applied.

4 is a flowchart illustrating a method for changing a slave device address in a home network system according to the present invention.

5 shows the structure of a address change request message according to the present invention;

6 shows the structure of a address change response message according to the present invention;

7 illustrates the structure of an address confirmation event message according to the present invention.

※ Explanation of code for main part of drawing

100,400: home server 200: refrigerator

300: digital television 500: air conditioning

600: Washing Machine

The present invention relates to a method of changing a slave device address in a home network system. For example, in a home network system in which a plurality of master devices and slave devices are connected and connected, a logical address of a slave device is provided. The present invention relates to a slave device address change method in a home network system for changing an address into a new logical address.

In general, a home network refers to a network in which various digital home appliances are connected to each other so that a user can conveniently and economically enjoy life services at home or outside the home at any time. Types of home appliances are becoming increasingly digital.

On the other hand, as home appliance operating system technology and high-speed multi-media communication technology have recently been applied to digital home appliances, new types of information home appliances have emerged one after another. Is further developing,

In addition, various types of slave devices may be connected and connected to a master device controlling the home network system. For example, as shown in FIG. Server) 100 may be connected to various types of slaves such as the refrigerator 200, the digital television 300, the air conditioner 500, the washing machine 600, and the like.

In addition, as shown in FIG. 1, another home server 400 may be connected and connected to the home network, and various communication schemes such as a power line control (PLC) scheme may be connected to the home network. Can be applied.

On the other hand, different slave logical addresses are assigned to each slave connected to the home network, and the master stores a logical address assigned to each slave and stores a new logical address. It performs slave device address change operation of.

For example, as shown in FIG. 1, when a first master 100, a second master 400, and a plurality of slaves 200, 300, 500, and 600 are connected and connected through a home network, a new slave, When connected to a home network, the first master 100 allocates and transmits a new address to the new slave, and the slave receiving the same transmits a response message corresponding to the new address, and sets a new address. do.

However, for example, in the first master 100, the address of the slave is assigned to '0xNN', and in the second master 400, the address of the slave is assigned to '0xWW', Even if the address is changed to '0xNN' assigned by the first master, the response message is transmitted to the first master and the second master, respectively, so in the second master 400, the address of the slave is assigned by itself. There is a problem that is incorrectly determined that the change to '0xWW'.

As another example, in the first master 100 and the second master 400, in the state where the address of the slave is stored and managed as '0xXX', respectively, in the first master 100, a new address '0xNN' is used. 'As assigned, and in the slave, when the previous address' 0xXX' is changed to the new address' 0xNN ', the slave notifies the second master 400 of its new address' 0xNN', where In the second master 400, since a new address of the slave is simply added and managed, a problem of repeatedly managing the address of the slave as an old address '0xZZ' and a new address '0xNN' may occur.

Therefore, the present invention was created to solve the above problems, for example, in the master device connected to the home network, when the address change request message is sent, the slave device receiving it, the corresponding response By transmitting a message, including the new address information in the response message, by transmitting it, so that the master device other than the master device, the new address of the slave device can be accurately known,

In addition, by generating an event message informing the change to a new address in the slave device, and transmits to the master or slave device connected through the home network, by including the previous address information in the event message, Another object of the present invention is to provide a slave device address change method in a home network system for updating and managing a new address of the slave device in a master device or a slave device receiving the same.

The slave device address change method in the home network system according to the present invention for achieving the above object, in the slave device receiving the address change request message from the master device connected to the home network, A response message corresponding thereto is transmitted, and the new address information is included in the response message, and the previously assigned address is changed to the new address.

In addition, the master device transmits the new address information and the cluster code to the slave device in the address change request message, and transmits the new device including the new address information in the response message. In addition, by referring to the new address information and the cluster code in the address change request message, characterized in that for changing the old address and cluster code to a new address and cluster code,

In addition, the master device refers to the new address information in the response message received from the slave device, transmits a message requesting the name of the slave device, and if a corresponding response message is normally received, the address change operation is performed. After completing, the slave device generates an event message indicating a change to a new address, and transmits it to a master or slave device connected and connected through a home network.

The event message includes a previous address information and a new cluster code, and includes a newly changed logical address in the header area of the event message. In any master device that receives the event message, the event message includes: The logical address for the slave device is updated with a new logical address by referring to a new logical address included in the header area of the terminal and a previous logical address included in the event message.

Hereinafter, a preferred embodiment of a slave device address changing method in a home network system according to the present invention will be described in detail with reference to the accompanying drawings.

First, the slave device address changing method according to the present invention can be applied to a home network system configured as described above with reference to FIG. 1, for example, as shown in FIG. 2, between one master and a slave. As shown in FIG. 3, a request message and response transmitted / received between a plurality of masters and slaves may be applied to a request message and a response message transmitted / received. ) Can be applied to the message.

Meanwhile, FIG. 4 is a flowchart illustrating a method of changing a slave device address in a home network system according to the present invention. For example, when a new slave is connected to a home network, the home network may be connected to the home network. In any connected master, a new logical address (NewLogicalAdd) and a new cluster code (NewClusterCode) of the slave are assigned to '0xNN' and '0xMM', respectively, and then an address change request message is generated. In this case, the data is transmitted to the slave.

For example, when the device code (DeviceCode) assigned to the slave is '0xXX', the logical address (LogicalAddrss) is '0xYY', and the cluster code (ClusterCode) indicating a place where the slave is installed is '0xZZ'. At the Master, the device code and the logical address are searched and transmitted, and an address change request (AddressChangeReq) message in which the receiver is '0xXXYY' is transmitted.

Meanwhile, as shown in FIG. 5, the address change request message includes a command code (CommCode), a new logical address (eg, 0xNN), and a new cluster code (eg, 0xMM). In Slave, a corresponding response message, for example, a Address ChangeAckRes message, is generated and transmitted to the master.

In this case, as shown in FIG. 6, the address change response message includes a command code (CommCode), an ACK, and a new logical address (eg, 0xNN). You can expect to change to the new address you assigned (eg 0xNN).

In addition, any other master assigned a different logical address from the new logical address, for example, '0xWW', may receive a new logical address included in the address change response message even if the address change response message is received. : 0xNN), it can be seen that a logical address (for example, 0xNN) different from '0xWW' allocated by the slave is changed to a new logical address of the slave.

Meanwhile, in the slave, after the address change response message is transmitted as described above, a new logical address (for example, 0xNN) and a new cluster code (for example, 0xMM) in the address change request message received from the master are transmitted. ).

In the master, the device code '0xXX' of the slave and the new logical address '0xNN' in the address change response message are searched and referred to, and a device name request message (DeviceNameReq or Product NameReq).

In addition, the slave receiving the device name request message transmits a corresponding acknowledgment message to the master. When the response message is normally received, the master transmits the corresponding acknowledgment message. When the address change operation of the slave device is completed and the response message is not received, the device name request message is repeatedly transmitted.

On the other hand, in the slave (Slave), after changing the new logical address and the cluster code through a series of processes as described above, in order to notify the fact to other master devices or slave devices connected to the home network. In addition, it generates and sends the Address Confirmation Event (AddressConfirmEvent) message.

For example, as shown in FIG. 7, the address confirmation event message includes a command code (CommCode), an event code (EventCode), an old node address (OldNodeAddrss or OldDeviceAddress), a new cluster code (NewClusterCode), and a device type. (DeviceType) information may be transmitted including it.

Meanwhile, the previous node address is a logical address (eg, '0xYY') before being changed to a new logical address, for example, in another master device that receives the same, a header area of the address confirmation event message The slave address stored in the master by referring to the sender address included in the new address, that is, the newly changed logical address (eg, '0xNN') and the previous node address (eg, '0xYY) included in the address confirmation event message. The old logical address of the server will be updated with the new logical address.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The slave device address change method in the home network system according to the present invention as described above, for example, when the address change request message is transmitted from the master device connected to the home network, the slave device receiving the same, By transmitting a corresponding response message, including the new address information in the response message, the master device other than the master device, so as to accurately know the new address of the slave device, and further, the slave device In the above, generate an event message indicating a change to a new address, and transmit it to a master or slave device connected through a home network, and transmit the same by including the previous address information in the event message. The emitter or the slave device, is extremely useful inventions which can be the to update managing the new address of the slave device, effectively prevent the error caused by the slave device address change of the home network system.

Claims (8)

In the master device connected to the home network, when the address change request message is transmitted, the slave device receiving the same transmits a corresponding response message. And transmitting a new address information in the response message and changing a previously assigned address to a new address. The method of claim 1, The master device includes the new address information and the cluster code in the address change request message and transmits the slave device address to the slave device. The method of claim 2, In the slave device, the new address information is included in the response message and transmitted, and the old address and the cluster code are referred to the new address and the cluster code by referring to the new address information and the cluster code in the address change request message. A slave device address changing method in a home network system, characterized in that for changing. The method of claim 1, The master device transmits a message requesting the name of the slave device by referring to the new address information in the response message received from the slave device, and then completes the address change operation when a corresponding response message is normally received. Slave device address changing method in a home network system, characterized in that. The method of claim 1, The slave device, the slave device address changing method of the home network system, characterized in that for generating an event message indicating a change to a new address, and transmits to the master or slave device connected through the home network. The method of claim 5, The slave device address changing method of a home network system, wherein the event message includes old address information and a new cluster code. The method of claim 6, And a newly changed logical address is transmitted in the header area of the event message. The method of claim 7, wherein In any master device that receives the event message, the new logical address included in the header area of the event message and the previous logical address included in the event message are searched for, and the new logical address for the slave device is searched for. A slave device address changing method in a home network system, characterized by updating to a street address.

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