CN102255782B - Channel management method for digital television and digital home network system - Google Patents

Abstract

The embodiment of the present invention discloses a channel management method in digital TV and a digital home network system, wherein the method includes: the TV adapter in the digital TV sends channel request information to the home gateway; The request information sends the channel address to the TV adapter; the TV adapter sends a connection request to the home gateway according to the channel address; the home gateway establishes a data connection with the TV adapter according to the connection request; the The home gateway sends the obtained channel data to the TV adapter. By implementing the embodiment of the present invention, reliable communication between the digital TV and the home gateway can be realized through connection establishment, data transmission and connection release, and multiple digital TVs can be controlled and managed more effectively by adding fields in the message frame. Solving the problem of different channel demands of different digital TVs can reduce hardware cost and is easy to develop.

Description

Channel management method in digital TV and digital home network system

technical field

The invention relates to the technical field of digital home network, in particular to a channel management method in digital television and a digital home network system.

Background technique

With the development of family digitization, it has become very common to have multiple digital TVs in one family, and even more wireless smart terminals will join the ranks of digital families. The cable network (Community Antenna Television, CATV) currently connected to the user's home is a main way to provide digital TV programs. In addition, users can also obtain the TV programs they are interested in through the Internet.

The existing digital home environment is a home network centered on the home gateway, in which the home gateway is responsible for managing and coordinating the network of the whole family, and is the core of the home network; in addition to the home gateway, there can also be digital TV, mobile terminals, water Digital terminal equipment such as electrical meters. The home gateway not only acts as a gateway but also has various server functions, such as streaming media server functions. There are multiple streaming media servers at present, such as RealSystem of RealNetworks, Windows Media of Microsoft, VideoCharger of IBM, QuickTime of Apple, and VLC of open source. VLC multimedia player supports many audio and video codecs and file formats, and supports various streaming protocols. VLC is not only powerful, but also can be customized and modified in detail according to development needs.

When multi-user digital TV requests digital TV programs from the server at the same time, how to manage and coordinate the needs of different users has always been an unsolved problem. At present, the dual-frequency head set-top box can satisfy two users to select different channels to watch at the same time, but this method can only meet the needs of two users, and it will fail for more users, and the dual-frequency head means Higher cost, so increasing the receiving card from the hardware will inevitably lead to an increase in cost, and does not solve the problem of more user needs. The dual-frequency head is to receive the TV signal from CATV by arranging two TV receiving cards, and then push them to different TV users respectively. There are also different schemes for using VLC as a streaming media server. Some schemes modify the code of VLC itself to meet the needs of specific occasions. The development cycle is long, the risk is high, and it is easy to make mistakes during the modification process.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art. The present invention provides a channel management method in digital TV and a digital home network system, which can solve the problem of different channel requirements of different digital TVs, reduce hardware costs, and develop Simple.

In order to solve the above problems, the present invention proposes a method for managing channels in a digital television, said method comprising:

The main adapter in the TV adapter in the digital TV sends the channel request information to the home gateway;

The home gateway sends the channel address to the main adapter in the TV adapter according to the channel request information;

The main adapter in the TV adapter sends a connection request to the home gateway according to the channel address;

The home gateway establishes a data connection with the main adapter in the TV adapter according to the connection request;

The home gateway sends the obtained channel data to the main adapter in the TV adapter;

The home gateway locks the frequency point where the channel corresponding to the channel address requested by the main adapter in the TV adapter is located;

The slave adapter in the TV adapter sends channel request information to the home gateway;

The home gateway determines whether the channel corresponding to the channel request information is at the frequency of the channel corresponding to the channel address requested by the main adapter;

If so, the home gateway sends channel data to the slave adapter;

If not, the home gateway sends all channel addresses in the frequency point where the channel corresponding to the channel address requested by the master adapter is located to the slave adapter.

Preferably, the step of the home gateway sending the channel address to the main adapter in the TV adapter according to the channel request information includes:

The gateway control point of the home gateway queries and obtains frequency point information corresponding to the channel request information according to the channel request information;

The gateway control point sends the obtained frequency point information to the streaming media server of the home gateway;

The streaming media server obtains a channel address corresponding to the frequency point information according to the frequency point information;

The streaming media server sends the obtained channel address to the gateway control point;

The gateway control point sends the channel address to the adapter control point in the main adapter in the TV adapter.

Preferably, the step of the main adapter in the TV adapter sending a connection request to the home gateway according to the channel address includes:

The streaming media player of the main adapter in the TV adapter receives the channel address sent from the adapter control point;

The streaming media player of the main adapter sends a connection request to the streaming media server of the home gateway according to the channel address.

Preferably, after the step of the home gateway sending the obtained channel data to the main adapter of the TV adapter, it further includes:

The main adapter of the TV adapter sends a release connection message to the home gateway;

The home gateway disconnects the connection between the home gateway and the main adapter of the TV adapter according to the release connection message.

Preferably, after the step of the home gateway sending to the slave adapter all the channel addresses in the frequency point corresponding to the channel address requested by the master adapter to the slave adapter, it further includes:

The slave adapter selects any channel among all the channel addresses, and sends a connection request to the home gateway according to the channel address corresponding to the channel;

The home gateway establishes a data connection with the slave adapter according to the connection request.

Correspondingly, the embodiment of the present invention also discloses a digital home network system, the digital home network system includes a home gateway and at least one digital TV, and it is characterized in that the digital TV includes a TV adapter, and the TV adapter includes a main An adapter and a slave adapter, the master adapter and the slave adapter all include a streaming media player and an adapter control point, and the home gateway includes a gateway control point and a streaming media server; wherein,

The main adapter in the TV adapter in the digital TV sends the channel request information to the home gateway;

The home gateway sends the channel address to the main adapter in the TV adapter according to the channel request information;

The main adapter in the TV adapter sends a connection request to the home gateway according to the channel address;

The home gateway establishes a data connection with the main adapter in the TV adapter according to the connection request;

The home gateway sends the obtained channel data to the main adapter in the TV adapter;

The home gateway locks the frequency point where the channel corresponding to the channel address requested by the main adapter in the TV adapter is located;

The slave adapter in the TV adapter sends channel request information to the home gateway;

The home gateway determines whether the channel corresponding to the channel request information is at the frequency of the channel corresponding to the channel address requested by the main adapter;

If so, the home gateway sends channel data to the slave adapter;

If not, the home gateway sends all channel addresses in the frequency point where the channel corresponding to the channel address requested by the master adapter is located to the slave adapter;

Among them, the gateway control point of the home gateway queries and obtains the frequency point information corresponding to the channel request information according to the channel request information; the gateway control point sends the obtained frequency point information to the streaming media server of the home gateway; Obtain the channel address corresponding to the frequency point information; the streaming media server sends the obtained channel address to the gateway control point; the gateway control point sends the channel address to the adapter control point in the TV adapter; the streaming media player in the TV adapter receives the sent The channel address of the self-adapter control point; the streaming media player sends a connection request to the streaming media server in the media gateway according to the channel address.

Preferably, the slave adapter selects any channel among all the channel addresses, and sends a connection request to the home gateway according to the channel address corresponding to the channel; the home gateway communicates with the slave according to the connection request The adapter establishes a data connection.

Implementing the embodiment of the present invention, the reliable communication between the digital TV and the home gateway can be realized through the establishment of the connection, the transmission of the data and the release of the connection, and the more effective control and management of multiple A digital TV (specifically, a TV adapter) can solve the problem of different channel requirements of different digital TVs, can reduce hardware costs, and is easy to develop.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

1 is a schematic flow diagram of a channel management method in a digital television according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the establishment process of the data connection in the method embodiment of the present invention;

Fig. 3 is a schematic diagram of the process of data exchange in the method embodiment of the present invention;

Fig. 4 is a schematic configuration diagram of a plurality of television adapters in a method embodiment of the present invention;

Fig. 5 is a schematic diagram of the process of connection release in the method embodiment of the present invention;

FIG. 6 is a schematic diagram of the structure and composition of the digital home network system according to the embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Fig. 1 is a schematic flow chart of a channel management method in a digital television according to an embodiment of the present invention. As shown in Fig. 1, the method includes:

S101, the TV adapter in the digital TV sends the channel request information to the home gateway;

S102, the home gateway sends the channel address to the TV adapter according to the channel request information;

S103, the TV adapter sends a connection request to the home gateway according to the channel address;

S104, the home gateway establishes a data connection with the TV adapter according to the connection request;

S105. The home gateway sends the obtained channel data to the TV adapter.

Further, S102 includes:

The gateway control point of the home gateway queries and obtains the frequency point information corresponding to the channel request information according to the channel request information; the gateway control point sends the obtained frequency point information to the streaming media server of the home gateway; the streaming media server obtains the frequency point information according to the frequency point information The channel address corresponding to the point information; the streaming media server sends the obtained channel address to the gateway control point; the gateway control point sends the channel address to the adapter control point in the TV adapter.

In the embodiment of the present invention, the streaming media server is a VLC (VideoLan Client); the gateway control point supervises and manages the communication between the streaming media server and the client. The TV adapter includes an adapter control point and a client streaming media player. The embodiment of the present invention uses a VLC player as a streaming media player, and the adapter control point is used to monitor the communication of the TV adapter, including the adapter control point and the streaming media player. Communication between devices, communication between TV adapter and home gateway.

The channel request process of the method of the present invention will be described in detail below with an example. The process includes the following steps:

Step 1: The user selects the channel of the program through the remote control, the monitoring module in the TV adapter receives the infrared signal, and transfers the signal to the analysis module for analysis, and obtains the channel request information through analysis;

Step 2: The adapter control point sends the channel request information to the home gateway;

Step 3: The gateway control point of the home gateway receives the channel request information, looks up the table for frequency point correspondence, and submits the found frequency point information to the streaming media server;

Step 4: The streaming media server obtains its corresponding channel address according to the frequency point, and then returns the channel address to the gateway control point;

Step 5: the gateway control point sends the channel address to the adapter control point in the TV adapter;

Step 6: The adapter control point forwards the address to the client streaming media player in the adapter, and the client streaming media player sends a connection request to the streaming media server according to the channel address.

In the embodiment of the present invention, reliable transmission design is mainly performed on the application layer.

The definition of the message frame structure used for the connection request is shown in Table 1, including the version number (Version) of the protocol, the device number (DevID) identifying the client, the command field (Command), and the data field (Length) length (Data).

Table 1 Message frame structure definition table

Version EevID Command Length Data

The detailed definition table of the message frame structure is shown in Table 2.

Table 2 Frame structure detailed definition table

Field Name Chinese name length (bytes) describe Version version number 1 Protocol version identification DevID Device No 1 Identify the client identity Command Command word 1 Actions for this communication Length length 2 The length of Data Data data lengthen data section

As shown in Table 1, only 1 byte is enough for the version number; because the number of users in a family is still limited, but 256 users can be allocated with 1 byte.

Further, S103 may include: the streaming media player in the TV adapter receives the channel address sent from the adapter control point; the streaming media player sends a connection request to the streaming media server in the media gateway according to the channel address.

The streaming media player here is a client streaming media player in the TV adapter.

FIG. 2 is a schematic diagram of the establishment process of the data connection in the method embodiment of the present invention. In the initial stage, both ends of the adapter control point and the gateway control point are in the closed (CLOSED) state. The boxes below the object in FIG. 2 respectively show the respective states of the adapter control point and the gateway control point. After being initialized, the home gateway is in a listening state, waiting for connection requests from other devices (such as digital TV). After the digital TV is switched on, the adapter control point in the TV adapter sends a "HELLO" message to the gateway control point of the home gateway, indicating a connection request, and then it is in the "SYNSENT" state. If the adapter control point does not get a reply within the specified time , the adapter control point is always in the "SYNSENT" state, and continues to send connection requests to the gateway control point. After the gateway control point of the home gateway receives the "HELLO" message, it replies an acknowledgment message "ACK=1" to the adapter control point, and at the same time assigns a unique device number "DEV=XXX" to the adapter where the adapter control point is located, and sends After the gateway control point is in the "SYNRCVD" state. After the adapter receives the confirmation message from the gateway and the allocation of the device number, it replies with a confirmation message "ACK=1", and then is in the state of connection establishment, that is, the "ESTABLISHED" state. After the gateway control point receives the acknowledgment message "ACK=1" from the adapter control point, it is also in the connection establishment state ("ESTABLISHED" state). So far, the three-way handshake process of connection establishment has been completed, and data exchange can be performed subsequently. The specific steps of the above connection establishment process are as follows:

Step 1: After the home gateway is turned on, it goes through a series of initializations, from the "CLOSED" state to the "LISTEN" state. After the adapter is initialized, it sends a connection request ("HELLO" message) to the gateway control point and is in the "SYN-SENT" state. state;

Step 2: After receiving the "HELLO" message, the gateway control point replies a confirmation message to the adapter control point and assigns a device number to the adapter where the adapter control point is located, "ACK=1, DEVID=XXX", then the gateway control point enters "SYN-RCVD" state;

Step 3: The adapter control point enters the "ESTABLISHED" state after receiving the confirmation message, and at the same time sends an "ACK=1" message to the gateway control point to confirm the establishment of the connection; the gateway control point receives the "ACK=1" sent by the adapter control point After the message, enter the connection establishment state "ESTABLISHED", and the establishment process of the connection is over.

Table 3 is an allocation table of the "command word" field in the message frame structure, and the command word field identifies the meaning of the data packet.

Table 3 Allocation table of the "command word" field in the message frame structure

command value Command word describe 0 reserved unused 1 HELLO connection request 2 GOODBYE connection release 3 ACK confirm 4 CHANGE Change channel command 5 ADDRESS Reply channel address

In specific implementation, as shown in FIG. 3 , the implementation of S105 is described as follows.

Figure 3 shows a typical data exchange process. First, the adapter control point sends a request message for the P1 channel, that is, "Request P1". This P1 channel can be obtained by the user through remote control, and the adapter control point receives and parses it; after receiving the request message, the gateway control point judges Whether the channel belongs to the current frequency point, if so, return the channel address of the channel; after the adapter control point obtains the channel address, send the channel address to the streaming media player of the adapter where the adapter control point is located; the streaming media player passes the channel address " rtsp:P1" sends a media data request to the streaming media server; the streaming media server sends the streaming media data (channel data) to the streaming media player after receiving the streaming media data request. In a specific implementation, there may be a heartbeat detection between the adapter control point and the gateway control point, so that both parties can confirm the existence of the other party, and the heartbeat time can be set to 1 minute or other.

When the digital home network system in the embodiment of the present invention includes multiple adapters, the method in the embodiment of the present invention may also include:

The home gateway locks the frequency point of the channel corresponding to the channel address requested by the main adapter in the TV adapter;

The slave adapter in the TV adapter sends channel request information to the home gateway;

The home gateway judges whether the channel corresponding to the channel request information is the frequency point where the channel corresponding to the channel address requested by the master adapter is located;

If so, the home gateway sends channel data to the slave adapter;

If not, the home gateway sends all channel addresses in the frequency point corresponding to the channel address requested by the master adapter to the slave adapter to the slave adapter.

As shown in Figure 4, the process is implemented as follows:

In the above data exchange process, the question of whether the request is the current frequency point is involved. If it is not the current frequency point, it needs to be processed separately. In the case of a single user (single TV adapter), the streaming media server can switch the frequency point, and then return the corresponding channel address information; but in a digital home network environment with multiple users (multiple TV adapters), the current The streaming media server can only lock one frequency point at a time, and each frequency point contains 7 digital TV channels, and each transmission is all information of one frequency point. The master adapter and the slave adapter are determined when the data connection is established, that is, determined by the device number DEVID obtained by the adapter. The adapter that first establishes a data connection with the home gateway A is the master adapter B, and the latter is the slave adapter C. When the main adapter B requests the P1 channel, the home gateway A locks the F1 frequency point where P1 is located, and then transmits the F1 data to the main adapter B, and the main adapter B decodes the P1 channel data from the data in the F1. The slave adapter C requests the P2 channel from the home gateway A, and the home gateway A judges whether the P2 channel belongs to the F1 frequency point, and if so, transmits the F1 data to the slave adapter C, and then decodes the P2 channel data from the adapter C in F1; if The P2 channel does not belong to the frequency point F1, then the home gateway A reselects the information of all channels of an F1 returned from the adapter C from the 7 channels provided by the adapter C. From adapter C, you can choose any channel in F1, or you can choose to give up and exit.

After S105, the following steps may also be included:

The TV adapter sends a release connection message to the home gateway;

The home gateway disconnects the connection between the home gateway and the TV adapter according to the release connection message.

Fig. 5 shows the connection release process of the method of the present invention.

When main adapter B is about to exit, send a "GOODBYE" message to home gateway A; home gateway A stops data transmission to main adapter B after receiving main adapter B's exit message, and revokes the device number of main adapter B; home gateway A selects one of the original slave adapters as the new master device, as shown in Figure 5, can select adapter C and send a selection notification message to adapter C; adapter C returns a confirmation message; thus completing the exit of master adapter B and a new primary adapter C selected. If it is a slave adapter, such as slave adapter C, only the process of releasing the connection is required, and the process of changing the master adapter is not involved.

It should be noted that if an adapter is unexpectedly removed, the home gateway can confirm the presence of the adapter through heartbeat detection. If it does not exist, revoke its device number. If the home gateway is unexpected, the adapter can also confirm the presence of the home gateway through heartbeat detection.

In the embodiment of the present invention, reliable communication between the digital TV and the home gateway can be realized through connection establishment, data transmission and connection release, and more effective control and management can be achieved by adding fields such as "DEVID" in the message frame. Multiple digital TVs (specifically, TV adapters), in addition, can achieve the purpose of rapid development.

Correspondingly, the embodiment of the present invention also discloses a digital home network system, as shown in Figure 6, the digital home network system includes a home gateway 1 and at least one digital TV (not shown in the figure), and the digital TV includes a TV adapter 2. The TV adapter 2 includes a streaming media player 21 and an adapter control point 20, and the home gateway includes a gateway control point 10 and a streaming media server 11; wherein,

The TV adapter 2 in the digital TV sends the channel request information to the home gateway 1;

The home gateway 1 sends the channel address to the TV adapter 2 according to the channel request information;

TV adapter 1 sends a connection request to home gateway 1 according to the channel address;

The home gateway 1 establishes a data connection with the TV adapter 2 according to the connection request;

The home gateway 1 sends the obtained channel data to the TV adapter 2 .

In addition, when there are multiple TV adapters, the home gateway locks the frequency point of the channel corresponding to the channel address requested by the main adapter in the TV adapter; the slave adapter in the TV adapter sends channel request information to the home gateway; the home gateway Determine whether the channel corresponding to the channel request information is the frequency point of the channel corresponding to the channel address requested by the master adapter; if so, the home gateway sends channel data to the slave adapter; if not, the home gateway sends the master adapter to the slave adapter. All the channel addresses in the frequency point corresponding to the obtained channel address are given to the slave adapter. The slave adapter selects any channel from all channel addresses, and sends a connection request to the home gateway according to the channel address corresponding to the channel; the home gateway establishes a data connection with the slave adapter according to the connection request.

The above system can also use a UTI card 12 for obtaining channel data from the CATV, and the streaming media server 11 obtains the channel data requested by the TV adapter 2 through the UTI card 12 .

For the implementation process of connection establishment, data transmission, and connection release between the home gateway and the TV adapter in the digital home network system in the embodiment of the present invention, please refer to the relevant description in the method embodiment of the present invention, which will not be repeated here.

The channel management method and digital home network system in digital TV provided by the embodiment of the present invention have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used To help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, this specification The content should not be construed as a limitation of the invention.

Claims (7)

1. A method for managing channels in a digital television, the method comprising:

a main adapter in a television adapter in the digital television sends channel request information to a home gateway;

the home gateway sends a channel address to a main adapter in the television adapter according to the channel request information;

a main adapter in the television adapter sends a connection request to the home gateway according to the channel address;

the home gateway establishes data connection with a main adapter in the television adapter according to the connection request;

the home gateway sends the acquired channel data to a master adapter in the television adapter;

the home gateway locks the frequency point of the channel corresponding to the channel address requested by the main adapter in the television adapter;

the slave adapter in the television adapter sends channel request information to the home gateway;

the home gateway judges whether the channel corresponding to the channel request information is at the frequency point of the channel corresponding to the channel address requested to be obtained by the main adapter;

if so, the home gateway sends channel data to the slave adapter;

if not, the home gateway sends all channel addresses in the frequency point where the channel corresponding to the channel address requested to be obtained by the master adapter is located to the slave adapter.

2. The method for managing channels in a digital tv as claimed in claim 1, wherein the step of the home gateway transmitting a channel address to a host adapter in the tv adapter according to the channel request information comprises:

the gateway control point of the home gateway inquires and obtains frequency point information corresponding to the channel request information according to the channel request information;

the gateway control point sends the obtained frequency point information to a streaming media server of the home gateway;

the streaming media server obtains a channel address corresponding to the frequency point information according to the frequency point information;

the streaming media server sends the obtained channel address to the gateway control point;

and the gateway control point sends the channel address to an adapter control point in a main adapter in the television adapter.

3. The method for managing channels in a digital tv as claimed in claim 2, wherein the step of the host adaptor in the tv adaptor sending a connection request to the home gateway according to the channel address comprises:

a streaming media player of a main adapter in the television adapter receives a channel address sent from a control point of the adapter;

and the streaming media player of the main adapter sends a connection request to the streaming media server of the home gateway according to the channel address.

4. The method for managing channels in a digital television according to claim 1, wherein after the step of the home gateway transmitting the acquired channel data to the master adapter of the television adapter, further comprising:

the master adapter of the television adapter sends a connection release message to the home gateway;

and the home gateway disconnects the connection between the home gateway and the main adapter of the television adapter according to the connection release message.

5. The method for managing channels in a digital television according to claim 1, wherein after the step of sending all channel addresses in the frequency point where the channel corresponding to the channel address requested by the master adapter exists to the slave adapter by the home gateway, the method further comprises:

the slave adapter selects any channel from all the channel addresses and sends a connection request to the home gateway according to the channel address corresponding to the channel;

and the home gateway establishes data connection with the slave adapter according to the connection request.

6. A digital home network system comprises a home gateway and at least one digital television, and is characterized in that the digital television comprises a television adapter, the television adapter comprises a master adapter and a slave adapter, the master adapter and the slave adapter both comprise a streaming media player and an adapter control point, and the home gateway comprises a gateway control point and a streaming media server; wherein,

a main adapter in a television adapter in the digital television sends channel request information to a home gateway;

the home gateway sends a channel address to a main adapter in the television adapter according to the channel request information;

a main adapter in the television adapter sends a connection request to the home gateway according to the channel address;

the home gateway establishes data connection with a main adapter in the television adapter according to the connection request;

the home gateway sends the acquired channel data to a master adapter in the television adapter;

the home gateway locks the frequency point of the channel corresponding to the channel address requested by the main adapter in the television adapter;

the slave adapter in the television adapter sends channel request information to the home gateway;

the home gateway judges whether the channel corresponding to the channel request information is at the frequency point of the channel corresponding to the channel address requested to be obtained by the main adapter;

if so, the home gateway sends channel data to the slave adapter;

if not, the home gateway sends all channel addresses in the frequency point where the channel corresponding to the channel address requested to be obtained by the master adapter is located to the slave adapter;

the gateway control point of the home gateway inquires and obtains frequency point information corresponding to the channel request information according to the channel request information; the gateway control point sends the obtained frequency point information to a streaming media server of the home gateway; the streaming media server obtains a channel address corresponding to the frequency point information according to the frequency point information; the streaming media server sends the obtained channel address to a gateway control point; the gateway control point sends the channel address to an adapter control point in the television adapter; a streaming media player in the television adapter receives a channel address sent from an adapter control point; and the streaming media player sends a connection request to a streaming media server in the media gateway according to the channel address.

7. The digital home network system of claim 6,

the slave adapter selects any channel from all the channel addresses and sends a connection request to the home gateway according to the channel address corresponding to the channel;

and the home gateway establishes data connection with the slave adapter according to the connection request.

Images