KR100652568B1 - Control system and method for device according to type in network system - Google Patents

Abstract

The present invention relates to a device-specific control system and method of a network system. In particular, in controlling at least one or more types of devices, the present invention aims to distinguish and process common commands and commands by device type. The device handler 130 determines whether the control command received from the LnCP server 110 performing the TCP / IP-based message transmission or reception is a common command or a command per device type, and the command determined by the device handler 130. The type of command handler 140 includes a plurality of handlers for analyzing the control command according to the type, searching for a command code, and creating a command message including the command code, the address of a device to receive the message packet, and service priority information. ) And command messages created by this type of command handler 140 Receiving and a device of the above layer and respond to status information according thereto, characterized in that comprises a hooking message handler 150 for transmission to an upper layer.

Description

CONTROL SYSTEM AND METHOD FOR DEVICE ACCORDING TO TYPE IN NETWORK SYSTEM}

1 is a block diagram of a device-specific control system in an embodiment of the present invention.

2 is an operation flowchart showing a control process for each device in an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110: LnCP Server 120: LnGate API

130: device handler 141: common command handler

142 ~ 144: device command handler

150: message hooking handler

The present invention relates to network systems, and more particularly, to a device-specific control system and method.

Recently, the construction of a home network system that connects a plurality of home appliances to a network installed in a home and enables remote control through the Internet has been spreading.

For example, LG HomeNet (HomNet) uses the Living Network Control Protocol (LnCP) to provide Internet services to home appliances in the home.

Home network based on LnCP connects various digital home appliances such as digital refrigerator, digital air conditioner and digital washing machine to transmission media such as power line, leased line, wireless channel, and transmits predetermined data while operating arbitrary home appliances. To control.

Currently, LnCP-based home networks include a network manager. The network manager is a master that handles LnCP messages by loading a program including a network layer, an application layer, and application software.

However, in the related art, there is a problem that software development is accompanied by including all of a network layer, an application layer, and application software in one program for LnCP message processing.

Accordingly, the present invention provides a network system that can be efficiently divided into common commands and commands according to characteristics of each device type in controlling various devices to which the current network control protocol is applied to improve the conventional problems. Its purpose is to provide a device-specific control system and method.

The present invention provides a device handler for determining whether a control command received from a network server performing a TCP / IP-based message transmission or reception is a common command or a device command in a network protocol-based network system. device handler) and a plurality of handlers for analyzing the control command according to the command type determined by the device handler to create a command message including a command code, an address of a device to receive a message packet, and service priority information. And a message hooking handler which transmits the created command message to a device of a lower layer and receives the status information accordingly and transmits it to the network server.

The command handler for each type includes a command command handler for processing a common command that can be recognized and processed by all devices, and a plurality of commands for processing each device according to the characteristics of the corresponding device. It comprises a device command handler of the configuration.

The common command handler is a handler that processes a common command that can be recognized by all devices (eg, an air conditioner, a microwave oven, a washing machine, etc.). The common command is a command for confirming the manufacturer and software version.

The device command handler is a handler that processes a command for controlling an operation of a corresponding device in response to a characteristic of each device (eg, an air conditioner, a microwave oven, a washing machine, etc.).

The device handler and the command handler for each type may be configured to be included in a master handler in a library module.

That is, the present invention is provided by dividing into common commands and device-specific commands for controlling any home appliances existing in a network system to which a network protocol is applied, and by providing a plurality of handlers to efficiently process each command. When a command comes into the device handler, it is switched so that the handler provided according to each command type is processed.

Therefore, the present invention allows the common instruction processor to process in the common instruction processor without overlapping codes for each type, and for the instruction processing for each device, even if all instruction codes are the same, it is possible to process the instructions for each type without confusion.

In addition, when the library for any device is to be updated, the present invention enables the control of a desired device by updating (modifying, adding, and deleting) only the library of the corresponding device without having to update the entire library.

Hereinafter, the present invention will be described in detail with reference to the drawings.
In the embodiment of the present invention, a case where a home network system is applied and LnCP is applied as a network protocol will be described.

1 is a block diagram of an LnCP-based home network system according to an exemplary embodiment of the present invention, as shown in FIG. 1, an LnCP server 110 performing TCP / IP-based message transmission and reception, and the LnCP server 110. A device handler 130 for determining whether the control command received from the command is a common command or a device type command, an LnGate API 120 for interfacing between the LnCP server 110 and the device handler 130, and the device handler. Analyzing the control command according to the command type determined in step 130, searching for a command code, and creating a command message including the command code, the address of a device to receive a message packet, and service priority information. ) And the command message created by this type of command handler 140 to the lower layer device, and the response and the status information accordingly And it comprises a hooking message handler 150 for transmission to the receiving device in the layer with the type of the command handler (140).

When the command handler 140 for each type receives a common command determined by the device handler 130, the command handler 140 extracts a command code and an input argument by analyzing the command, and applies a corresponding command to the extracted command code and input argument. The com-on command handler 141 for creating a common command message including a logical address of the device to be received and service priority information, and a device type determined by the device handler 130 (eg, an air conditioner, Microwave, washing machine) command is analyzed and the command code is extracted and the extracted command code includes a device (logical address) and service priority information (service priority) information of the device to receive the command It comprises a plurality of device command handlers (142 to 144) for creating a command message.

The device command handlers 142 to 144 are device command handlers in which '142' corresponds to an air conditioner, '143' corresponds to a microwave oven, and '144' corresponds to a washing machine.

Referring to the operation and effect of the embodiment of the present invention configured as described above are as follows.

In the embodiment of the present invention, a case of driving an air conditioner will be described. In addition, in the embodiment of the present invention, it is assumed that the air conditioner and the LnCP library module are connected in series.

When a user's command for controlling any device in the home network is received by the LnCP server 110 and transmitted to the LnGate API 120, the API 120 changes to an appropriate command form to the device handler 130. To pass.

In the embodiment of the present invention, since the air conditioner is assumed, for example, when a command to turn on the air conditioner is called, the API 120 transmits the designation number and power-on command of the air conditioner to the LnGate API 120. Change to a command that can be recognized.

In this case, the device handler 130 determines whether the command received through the API 120 is a common command or a device type command.

Accordingly, when it is confirmed as a common command for confirming the manufacturer or software version of the air conditioner, the device handler 130 transmits the corresponding command message to the common command handler 141.
At this time, the common command handler 141 analyzes the command message, checks the command code for checking the manufacturer or software version of the air conditioner, and then adds a logical address and a service priority of the air conditioner. The created common command message is delivered to the message hooking handler 150 and waits for a response to the command message.
Therefore, the message hooking handler 150 transmits the common command message to the air conditioner of the lower layer, and when the response is returned, the message hooking handler 150 transmits the response message to the common command handler 141. In the form of a command that can be recognized in the) and delivers it to the device handler (130).
Accordingly, when the device handler 130 transmits the corresponding command to the API 120, the API 120 delivers the processing result of the control command requested by the user to the LnCP server 110, thereby providing the user with an air conditioner manufacturer or software version. You will be informed.

In addition, if it is confirmed as a command for controlling the operation of the air conditioner, the device handler 130 corresponds to a device command handler (hereinafter, referred to as an “air conditioner command handler”) 142 corresponding to the air conditioner among the device command handlers 142 to 144. Pass the message.

At this time, if the command received through the API 120 is a device command for turning on the air conditioner, the device handler 130 transmits the command to the air conditioner command handler 142.

Accordingly, the air conditioner command handler 142 analyzes a command form, checks a command code for power-on, and then adds a logical address and a service priority of the air conditioner to generate a command message. It passes to the message hooking handler 150 and waits for a response to the command message.

Therefore, the command message delivered to the message hooking handler 150 is sequentially processed through the transmission handler (not shown), the channel handler (not shown), and the device interface (not shown), and then, to the air conditioner by serial communication. Is sent.

Subsequently, when the air conditioner turns on the power and returns a response thereto, the response message is a message hooking handler 150 through a device interface (not shown), a channel handler (not shown), and a transmission handler (not shown). Is sent).

In this case, when the message hooking handler 150 transmits the response message from the air conditioner to the air conditioner command handler 142, the message hooking handler 150 changes to a command form that the air conditioner command handler 142 can recognize in the API 120. To pass).

Accordingly, when the device handler 130 transmits the command to the API 120, the API 120 transmits the processing result of the control command requested by the user to the LnCP server 110 to be delivered to the user.

Meanwhile, the present invention manages to process a library for each type as described in the above process, so that only the corresponding library can be replaced or updated, and if the memory capacity is small according to the hardware specification of the application, only the required type of instruction can be processed. have.

As described in detail above, the present invention can improve the performance of the network system by enabling the efficient processing of the library by managing the processing by classifying the common command and the device-specific command instead of integrating and processing the library for each device. It has an effect.

In addition, the present invention has the effect of easily updating the library by updating only the library of the device, rather than updating the entire library when the library needs to be updated.

Claims (5)

A type-specific command handler including at least two handlers for analyzing the control command according to the type of control command and generating a command message including a command code, an address of a device to receive a message packet, and information on service priority. Device-specific control system of the network system, characterized in that configuration. The method of claim 1, wherein the type-specific command handler is A command command handler that processes common commands that all devices can recognize and process; And at least one device command handler for processing a command according to device characteristics corresponding to at least one device. In the device control method of a network system based on a network protocol, Confirming, by the device handler, whether the device control command of the user is a common command that all devices can recognize or each device command according to device characteristics; If the control command is identified as a common command, transmitting the common command to all devices through a message hooking handler; Determining the corresponding device if the control command is confirmed as an arbitrary device command, processing the identified device command, and transmitting the processed device command to the determined corresponding device through the message hooking handler; And Receiving a response to the control command processing result in the message hooking handler Device-specific control method of a network system comprising a. The device of claim 1, further comprising a device handler which determines whether the control command received from the network server is a common command or a device command and delivers the same to a command handler for each type. Star control system. The method of claim 1 or 4, further comprising a message hooking handler for transmitting a command message created by the type command handler to a lower layer device, and receiving a status information of the device that executed the command message and transmitting it to a network server. Device-specific control system of the network system, characterized in that the configuration.

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