KR100531344B1 - apparatus and method for controlling device in bus system - Google Patents

Abstract

The apparatus and method for controlling a device in a bus system are to register a node that can be connected with oneself so as to control an external device. In a bus system, a node number of a node that can be connected to one's own node Is a first region where a node_number region of a predetermined bit is stored, and a second region, which is a P_code region of a predetermined bit, in which a predetermined code for identifying a product of the connectable node can be registered. And a chip_id_hi area of a predetermined bit and a chip_id_hi area of a predetermined bit and a chip_id_lo area of a predetermined bit, indicating a node_vendor_id area of a predetermined bit and a chip unique serial number. A third area, which is a CHI AR recording area, and a predetermined bit of vendor_dependant_information in which string information indicating a description of the device is recorded. Node information storage means comprising a fourth area, a string information recording area comprising a Vendor_Dependent_Information area, and a fifth area, a Nickname area in which a nickname for identifying the same product of the connectable node is recorded. There is a gist that is configured to include.

Description

Apparatus and method for controlling device in bus system}

The present invention relates to a bus system, and more particularly, to an apparatus and apparatus for controlling a device in a bus system.

Hereinafter, a device control apparatus and method in a bus system according to the related art will be described with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating a connection configuration in a general P1394 serial bus system. As shown in FIG. 1, seven nodes are connected to a leaf node # 0 to a root node # 6 by a P1394 serial bus (not shown).

At leaf node # 0, root node # 6 is composed of CAM 1, Audio 1, VCR 2, VCR 3, VCR 1, TV 2, and TV 1, respectively.

Where the leaf node # 0, between leaf node # 1 and branch node # 2, leaf node # 3, between leaf node # 4 and branch node # 5, the branch node # 2, branch node # 5 and root node # 6 (root node # 6) are each connected by twisted pair cable of said P1394 serial bus.

FIG. 2 is a view illustrating a part of a configuration of a configuration_ROM according to the prior art. An 8-bit chip representing a 24-bit Node_Vendor_Id region and a chip unique serial number granted by a company. 32 bits in which the bus_info_block area consisting of the Chip_id_hi area and the 32-bit Chip_id_lo area and string information indicating the description of the device are recorded. It includes the Vendor_Dependent_information area of the Vendor_Dependent_information.

Referring to the accompanying drawings, a device control apparatus and method for a bus system according to the related art are described in detail as follows.

First, as shown in FIG. 1, when each node is connected with a twisted pair cable of the P1394 serial bus and the power is turned on, a bus reset occurs to determine the structure between the layers of each node. do.

That is, when a bus reset occurs, each node clears the previous topology information or the node ID of each node, and then each node recognizes whether it is a branch node, a leaf node, or an isolated state. .

Next, a parent topology is given to each node to create a tree topology, and then the root node is determined.

If the root node TV 1 is a bus manager, when the bus reset is completed, the TV 1 reads configuration information from each node and stores the configuration information in the internal memory as shown in FIG. 2.

For example, if the readout is configuration information of the LG PC camera, TV 1 has a string of "LG 1394 LPC-P10 PC Camera" in the Vendor_Dependent_Information area of the internal memory. Record the information.

However, in the apparatus and method for controlling a device in a bus system according to the related art, when the user wants to perform recording by transmitting data from the branch node TV 2 to the leaf node # 4 VCR 1, the TV 2 is controlled. There is also a problem that can not form a real home network because it can not.

In addition, in the prior art, when TV 2 and VCR 1 exist in different rooms when a TV or TV attempts to record a drama or movie on TV 2, the user cannot control two devices from one device. There is also an inconvenience in use because the desired control function can only be performed by operating two devices while moving two rooms one by one.

Accordingly, an object of the present invention is to provide a device control device in a bus system that can control a counterpart device by registering a device (node) that can be connected with itself. have.

Another object of the present invention is to provide a device control method in a bus system corresponding to the above apparatus.

In order to achieve the above object, the present invention provides an apparatus for controlling a device in a bus system to which a plurality of nodes are connected, the apparatus comprising: a first area storing a node number of a node connectable to its own node; A second area capable of registering a predetermined code for identifying a product of the connectable node; A third area, which is a GUID recording area including a division area of a node vendor and an area indicating a chip unique serial number assigned according to the manufacturer of the device; A fourth area in which string information indicating a description of the device is recorded; And a node information storing means comprising a fifth area in which a nickname for identifying whether the connectable node is the same product is recorded.

In order to achieve the above object, the present invention receives a GUID and string information among configuration information of a node that can be connected to itself when a bus is reset and according to the node number of each node. Storing the information; Resetting a node number of the stored node information when a new node is connected and a bus reset occurs; Receives a GUID and string information among configuration information of a node that can be connected to itself, and the received information and the already stored GUIID and string information Comparing the; If the GUID and the string information are the same as the result of the comparison, the stored node number is updated with a new node number. If not, the string is one of configuration information of the newly connected node. Displaying information; And performing a registration procedure of the newly connected node according to the displayed string information.

According to another aspect of the present invention, there is provided a display apparatus including: a first display step of displaying a controllable device among connected nodes when a control target device selection key is input; A search step of selecting a controllable device among the devices displayed in the first display step, and searching whether the control of the selected device is possible; A second display step of displaying a non-control message if the control of the selected device is impossible as a result of the search, and a control screen if the control is possible; And a control step of controlling the control target device on the control screen displayed in the second display step.

Hereinafter, a preferred embodiment of a device control apparatus and method in a bus system according to the present invention will be described with reference to the accompanying drawings.

3 is a view showing the configuration of a node information storage unit by an apparatus and apparatus for controlling a bus in a bus system according to the present invention, wherein a node_number of a predetermined bit in which a node number of a node connectable to its own node is stored; ) First area, a second area which is a P_code area of a predetermined bit to register a predetermined code of the connectable node, and a node_vendor_Id of a predetermined bit given to each company. ) A third area, which is a local ID recording area consisting of a chip_id_hi area of a predetermined bit and a chip_id_lo area of a predetermined bit, representing a chip-specific serial number; A string information recording area comprising a Vendor_Dependent_Information area of a predetermined bit in which string information representing a description is recorded. It consists of 4 areas.

4A and 4B illustrate another embodiment of a node information storage unit by an apparatus and apparatus for controlling a bus in a bus system according to the present invention, and FIG. 4A is formed at a predetermined position in the first area of FIG. When a plurality of connectable nodes exist in the same product, a nickname area recorded by a user is formed to identify the same, and FIG. 4B shows a new fifth area in the node information storage to record the nickname. Indicates.

Fig. 5 is a view showing a node registration screen in a device control apparatus and method in a bus system according to the present invention, and Figs. 6A and 6B are devices in a device control apparatus and method in a bus system according to the present invention. A diagram illustrating a selection screen and a selection device control screen.

Fig. 7 is a flowchart for storing node information in a node information storage unit in a device control method in a bus system according to the present invention, and Fig. 8 is a specific diagram in a device control method in a bus system according to the present invention. 9 is a flowchart for controlling a node, and FIG. 9 is a flowchart showing another embodiment for controlling a specific node in a device control method in a bus system according to the present invention.

The apparatus control apparatus and method in the communication bus system according to the present invention will be described in detail with reference to the accompanying drawings.

The connection configuration between each node to which the device control apparatus and method in the bus system according to the present invention is applied is shown in FIG.

First, at the time of bus reset, a tree topology as shown in FIG. 1 is created, and then each node has a node_number and configuration information of the corresponding device from a node that can connect with itself. ID and string information is read and recorded in the internal node information storage unit according to the node_number as shown in FIG.

The connectable node is, for example, TV 1, TV2 and VCR 1 to VCR 3, and TV 1, TV2 and CAM 1, and CAM 1 and VCR 1 to VCR 3 and the like with reference to FIG. 1.

On the other hand, when a new node is connected to a system composed of a tree topology as shown in FIG. 1, a bus reset occurs and a new tree topology is created.

Subsequently, as shown in FIG. 7, when the bus reset is completed, each node resets the node_number of its node information storage unit, and then the user ID of the configuration information of the node connected to itself. (GUID) and string information are read and compared with the GUID and string information stored in the node information storage unit (S1 to S4).

If the comparison result is the same, each node updates its node_number (node_number) of its node information storage unit with the node number (S5).

In addition, if the comparison result is not the same, each node reads and updates new configuration information (Configuration) (S6).

The P_code area in the node information storage unit is empty so that a user can register a predetermined code for identifying a product of the node.

Therefore, as shown in FIG. 5, each device for registering a product code of the device in the P_code area and string information of each device are respectively displayed in a predetermined area of a screen such as a TV. If there is no screen such as the TV (S7), the corresponding products are sequentially displayed in a menu type on the LCD panel.

Then, when the user views the string information displayed on the screen and each device and selects a device corresponding to the string information, a product code corresponding to the device is recorded in the P_code ( S8).

The product code is defined as "XX-XX00" for TV, "XX-XX01" for VCR, and "XX-XX10" for CAM.

In addition, other nodes are also stored in the node information storage unit for each node according to the node_number when the bus reset, the node code that can be connected to itself, and the user's code ( P_code) is registered for each product code node.

Meanwhile, since there may be a plurality of products having the same product code registered in the P_code area, the nickname area is the first area of FIG. 3 to identify the same. Or in a new fourth region.

The user may register a code for identifying the same product through the same process as registering the product code of the corresponding device in the nickname area and the P_code area.

For example, if the TV is present in the main room and the living room, respectively, when the user registers the first and the second TVs as the main room and the living room, the corresponding code is recorded in the nickname area.

After the bus reset is completed, as shown in FIG. 8, if the user presses the record button to record the drama or movie being aired on TV 2 to VCR 1, the TV 2 is the control information of the node connected to itself. If the control information is searched for and displays the controllable device among the nodes connected to the TV 2, and if not the control information connected to the TV 2 and performs its own command (S11 ~ SS13).

Then, when the user selects the VCR 1 as the control target device from the displayed device, the control is performed accordingly, and the recording is performed from the TV 2 to the VCR 1 (S14-16).

In addition, as shown in FIG. 9, when a user inputs a control target device selection key for recording from VCR 1 from TV 2, devices that can be controlled among nodes connected to TV 2 are displayed (S21 and S22).

6A, when the user selects the VCR 3 from among the displayed devices, the user can search whether the selected control target device can be controlled, and if the control is not possible, display a non-control message, and if the control is possible, The control screen of the control target device as shown in FIG. 6B is displayed (S23 to 27).

The reason for searching whether the control target device is controllable is to search whether the user can control the power according to power on / off of the selected control target device.

When a signal for viewing and recording the displayed control screen is input, a drama or movie being displayed on TV 2 is recorded on the VCR 1 accordingly.

As described above, in the device control apparatus and method of the communication bus system according to the present invention, a user can be controlled by registering a node that can be connected with himself / herself and controlling the counterpart device. In addition, there is an effect that can form a substantial home network (home network).

1 is a diagram showing a connection configuration in a typical P1394 serial bus system

2 is a diagram illustrating a part of a configuration of a configuration_rom according to the prior art.

3 is a view showing an embodiment of a node information storage unit by an apparatus and apparatus for controlling a bus in a bus system according to the present invention;

4A and 4B illustrate another embodiment of a node information storage unit by an apparatus and apparatus for controlling a bus in a bus system according to the present invention.

Fig. 5 is a diagram showing a node registration screen in the device control apparatus and method in the bus system according to the present invention.

6A and 6B are views illustrating a device selection screen and a selection device control screen in a device control apparatus and method in a bus system according to the present invention.

7 is a flowchart for storing node information in a node information storage unit in a device control method in a bus system according to the present invention.

8 is a flowchart for controlling a specific node in a device control method in a bus system according to the present invention.

9 is a flowchart showing another embodiment for controlling a specific node in a device control method in a bus system according to the present invention.

Claims (3)

An apparatus for controlling a device in a bus system in which a plurality of nodes are connected, A first area in which a node number of a node connectable to its own node is stored; A second area capable of registering a predetermined code for identifying a product of the connectable node; A third area, which is a GUID recording area including a division area of a node vendor and an area indicating a chip unique serial number assigned according to the manufacturer of the device; A fourth area in which string information indicating a description of the device is recorded; And a node information storage means comprising a fifth area in which a nickname for identifying whether the connectable node is the same product is recorded. Receiving a GUID and string information among configuration information of a node which can be connected to itself when the bus is reset, and storing the information according to the node number of each node; Resetting a node number of the stored node information when a new node is connected and a bus reset occurs; Receives a GUID and string information among configuration information of a node that can be connected to itself, and the received information and the already stored GUIID and string information Comparing the; If the GUID and the string information are the same as the result of the comparison, the stored node number is updated with a new node number. If not, the string is one of configuration information of the newly connected node. Displaying information; And And registering the newly connected node according to the displayed string information. A first display step of displaying a controllable device among connected nodes when a control target device selection key is input; A search step of selecting a controllable device among the devices displayed in the first display step, and searching whether the control of the selected device is possible; A second display step of displaying a non-control message if the control of the selected device is impossible as a result of the search, and a control screen if the control is possible; And a control step of controlling the control target device on the control screen displayed in the second display step.