WO2012146108A1

WO2012146108A1 - Iptv home network system based on coaxial cables and data processing method therefor

Info

Publication number: WO2012146108A1
Application number: PCT/CN2012/072961
Authority: WO
Inventors: 皮雅稚; 张凯; 柴作朋; 陈夏盛; 李贤军
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-04-25
Filing date: 2012-03-23
Publication date: 2012-11-01
Also published as: CN102186047A; CN102186047B

Abstract

The present invention relates to an IPTV home network system based on coaxial cables and a data processing method therefor. The system comprises a home gateway, a primary set top box, and a secondary set top box. The method comprises: after the system is powered on and initialized successfully, the primary set top box forwarding a service request to the home gateway, and forwarding IPTV network data sent from the home gateway to a terminal device connected thereto, or converting the IPTV network data into data suitable for transmission over coaxial cables and sending the data to the secondary set top box; and the secondary set top box converting the received data into the IPTV network data and sending the IPTV network data to a terminal device connected thereto. Through the present invention, the IPTV connections at different positions inside a home can be achieved without changing the network and devices before entering the home and without rearranging cables.

Description

Coaxial cable-based IPTV home network system and data processing method thereof

The present invention relates to the field of IPTV (Internet Protocol Television) and MoCA (Multimedia over Coax Alliance) technologies, and more particularly to an IPTV home network system based on coaxial cable and Data processing method. Background technique

MoCA is an industry standard that provides broadband access and home networking products based on coaxial cable. It was established in 2004 and the MoCA protocol has evolved to version 2.0 - MoCA v2.0. MoCA technology has the following characteristics:

1. Its MAC (Medium/Media Access Control) layer speed reaches 175Mbps-270Mbps (MoCA vl.l and above);

2. Flexible frequency use, between 875MHz and 1500MHz, MoCA technology divides the frequency band in units of 50MHz. Each frequency band is divided into 256 subcarriers. The data is carried by the older narrowband modulated carrier. The whole subchannel The frequency response is very flat;

3. Provide dynamic transmit power control to optimize transmit power;

4. Using pre-equalization and multi-tone modulation, the BER (bit error rate) of the video quality can be obtained by using a simple FEC (forward error correction);

5, providing priority QoS (quality of service), can provide different priority services for video (video), voice (audio) and gaming (game); also provides parameterized QoS, for MoCA Each transport stream in the network is bandwidth reserved to ensure its transmission quality.

Due to its unique technical features, and its broadband access solution for existing coaxial cable The solution is very popular among operators and equipment developers.

With the popularity of digital TV, traditional CATV (cable television) has gradually been replaced by IPTV. However, for families who have installed CATV, if they want to use IPTV, they need to re-arrange the home coaxial cable network to affect the indoor layout landscape. Summary of the invention

It is an object of the present invention to provide a coaxial cable-based IPTV home network system and a data processing method thereof to solve the problem that it is necessary to change existing cable television wiring to access IPTV.

The invention provides a set top box, including a main processor, and a multi-port switch chip,

MoCA chip, coaxial cable interface and at least one Ethernet interface,

One port of the multi-port switch chip is connected to the main processor, a port and the above

MoCA chip connection;

The MoCA chip is connected to the coaxial cable,

The Ethernet interface is connected to a port of the multi-port switch chip.

Preferably, the multi-port switch chip is connected to the main processor and the MoCA chip via a Mil (Media Independent Interface) bus. The present invention also proposes an IPTV home network system based on a coaxial cable, including a home gateway, a host set top box, and a slave set top box.

The home gateway is connected to the IPTV network, and configured to send the received IPTV network data to the host set top box;

The host set top box is connected to the home gateway through a network cable, and is connected to the slave set top box through a home coaxial cable to transmit the received IPTV network data to the terminal device connected thereto, or the received IPTV network. Converting data into data suitable for coaxial cable transmission, and transmitting the data to the above set top box; The slave set top box is configured to convert the received data into IPTV network data and send the data to the terminal device connected thereto.

Preferably, the home gateway is further configured to forward the service request sent by the host set-top box to the IPTV network;

The host set-top box is further configured to forward the local service request to the home gateway, or convert the received service request from the set-top box into an IPTV network service request, and forward the request to the home gateway;

The above-mentioned slave set top box is further configured to convert a local service request into a service request suitable for coaxial cable transmission and forward it to the host set top box.

Preferably, the host set top box is further configured to: determine, during initialization, whether the connection with the home gateway is normal, and when the connection with the home gateway is abnormal, prompt the user to check the physical network connection; and determine whether the MoCA function has been Enable, and when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware, or when the MoCA function is not enabled, enter the configuration page and prompt the user to enable the MoCA function, save the user settings and restart; determine whether the MoCA firmware is successfully downloaded, and When the above MoCA firmware download is successful, the frequency sweep is performed in the coaxial cable network, and the frequency band negotiation and association with the slave set top box is performed, or when the above MoCA firmware download fails, the user is prompted to start an error and restart;

The above-mentioned slave set-top box is also used to determine whether the MoCA function is enabled during initialization, and when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware, or when the MoCA function is not enabled, enter the configuration page and prompt the user to start MoCA. Function, save user settings and restart; determine whether the MoCA firmware is successfully downloaded, and when the above MoCA firmware download is successful, perform frequency sweep in the coaxial cable network, perform band negotiation and association with the host set-top box, and determine whether it is at a preset time. If the internal association is successful, and the association fails within the preset time, the user is prompted to disconnect the network link and try again; or when the above MoCA firmware download fails, the user is prompted to start an error and restart. Preferably, the host set top box includes a main processor, a multi-port switch chip, a MoCA chip, a coaxial cable interface, and at least one Ethernet interface.

The main processor is configured to process the received data, or forward the local service request to the multi-port switch chip;

The multi-port switch chip has a port connected to the main processor through a ΜΠ bus, and a port is connected to the MoCA chip through a ΜΠ bus, and is used for forwarding the IPTV network data received by the Ethernet interface to the main processor and / or the above MoCA chip, or forward the received service request to the home gateway through the Ethernet interface;

The MoCA chip is connected to the coaxial cable, and is configured to convert the received IPTV network data into data suitable for coaxial cable transmission, and forward the data to the slave set top box through the coaxial cable interface; or the received service The request is converted into an IPTV network service request and forwarded to the multi-port switch chip.

Preferably, the main processor of the host set top box is further configured to determine whether the connection with the home gateway is normal, and when the connection with the home gateway is abnormal, prompting the user to check the physical network connection; and determining whether the MoCA function has been Enable, and when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware to the above MoCA chip, or when the MoCA function is not enabled, enter the configuration page and prompt the user to enable the MoCA function, save the user settings and restart; the host set-top box The MoCA chip is also used to determine whether the MoCA firmware is successfully downloaded, and when the MoCA firmware is successfully downloaded, the frequency band negotiation and association with the slave set-top box are performed in the frequency-sweeping coaxial cable network, and when the MoCA firmware download fails, the prompt is prompted. The user initiated an error and restarted.

Preferably, the slave set top box includes a main processor, a multi-port switch chip, a MoCA chip, a coaxial cable interface, and at least one Ethernet interface.

The main processor is configured to process the received data, or forward the local service request to the multi-port switch chip; The multi-port switch chip has a port connected to the main processor through a bus, and a port connected to the MoCA chip through a bus, for transmitting the received IPTV network data to the main processor, or receiving The service request is forwarded to the MoCA chip; the MoCA chip is connected to the coaxial cable, and is configured to convert data received by the coaxial cable interface into IPTV network data, and send the data to the multi-port switch chip, or The received service request is converted into a format suitable for coaxial cable transmission and transmitted to the host set top box through the above coaxial cable interface.

Preferably, the master processor of the slave set top box is further configured to determine whether the MoCA function is enabled, and when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware to the MoCA chip, or enter the MoCA function when the MoCA function is not enabled. Configure the page and prompt the user to enable the MoCA function, save the user settings and restart;

The MoCA chip of the above set-top box is also used to determine whether the MoCA firmware is successfully downloaded, and when the MoCA firmware is successfully downloaded, the frequency band negotiation and association with the host set-top box in the frequency-sweeping coaxial cable network is performed to determine whether it is preset. If the association is successful within the time limit and the association fails within the preset time, the user is prompted to disconnect the network link and try again; or when the above MoCA firmware download fails, the user is prompted to start the error and restart. The present invention further provides a data processing method for an IPTV home network system based on a coaxial cable, comprising the following steps:

After the system is powered on and initialized successfully, the host set-top box forwards the service request to the home gateway, and forwards the IPTV network data sent by the home gateway to the terminal device connected thereto, or converts the IPTV network data into a coaxial device. The data transmitted by the cable is sent to the above set top box;

The above-mentioned set-top box converts the received data into IPTV network data and transmits it to the terminal device connected thereto.

Preferably, the step of powering up and initializing comprises an initialization process of the host set top box and the slave set top box Initialization process,

The initialization process of the above host set top box includes the following steps:

The host set-top box determines whether the connection with the home gateway is normal. If not, the user is prompted to check the physical network connection; if normal,

Determine whether the local MoCA function is enabled. If not enabled, enter the configuration page and prompt the user to enable the MoCA function; if enabled,

Load the MoCA driver and download the MoCA firmware locally;

Determine whether the MoCA firmware is successfully downloaded. If the download fails, the user is prompted to start the error and restart. If the download is successful, then

The frequency-swept coaxial cable network is negotiated and associated with the slave set-top box; the initialization process of the above-mentioned set-top box includes the following steps:

Determine whether the local MoCA function is enabled from the set-top box. If not enabled, enter the configuration page and prompt the user to enable the MoCA function; if enabled,

Load the MoCA driver and download the MoCA firmware locally;

Sweeping a coaxial cable network, performing band negotiation and association with the above-mentioned host set-top box;

Determine whether the association is successful within the preset time. If yes, the initialization is successful; otherwise, the user is prompted to disconnect the network link and try again.

Preferably, the service request includes a local service request and a service request from the set top box.

Preferably, the host set top box performs the following steps before forwarding the service request from the set top box to the home gateway:

The above service request is converted into an IPTV network service request. The invention fully utilizes the home interior by means of a cascaded set top box with MoCA function The existing cable TV coaxial cable network realizes the access of IPTV throughout the home without changing the network and equipment before entering the home, and without re-routing within the home. The invention is applicable to cable television cable operators. DRAWINGS

Figure 1 is a schematic block diagram of a set top box of the present invention;

2 is a schematic block diagram of a first embodiment of an IPTV home network system based on a coaxial cable according to the present invention;

3 is a schematic block diagram of a second embodiment of an IPTV home network system based on a coaxial cable according to the present invention;

4 is a flow chart of a data processing method of an IPTV home network system based on a coaxial cable according to the present invention;

Figure 5 is a flow chart of the initialization process of the host set top box of the present invention;

Figure 6 is a flow chart of the initialization process of the set top box of the present invention. detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments in order to make the present invention. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in FIG. 1 , it is a schematic block diagram of a set top box of the present invention. In this embodiment, the set top box includes a main processor 01, a multi-port switch chip 02, a MoCA chip 03, a coaxial cable interface 04, and an Ethernet interface 05, wherein

One port of the multi-port switch chip 02 is connected to the main processor 01 through the ΜΠ bus, one end port is connected to the MoCA chip 02 through the ΜΠ bus, and one port is connected to the Ethernet interface 05; the MoCA chip 02 is connected to the coaxial cable interface 04.

In other embodiments, the set top box may have multiple Ethernet interfaces 05 as desired. As shown in FIG. 2, it is a schematic block diagram of a first embodiment of a coaxial cable-based IPTV home network system, including a home gateway 10, a host set top box 20, and a slave set top box 30, wherein the home gateway 10 is connected to an IPTV network. For transmitting the IPTV data received from the IPTV network to the host set-top box 20, or forwarding the service request sent by the host set-top box 20 to the IPTV network;

The host set-top box 20 is connected to the home gateway 10 through a network cable, and is connected to the slave set-top box 30 through a home coaxial cable, and is used to determine whether the connection with the home gateway 10 is normal during initialization, and is not connected to the home gateway 10. Normally, the user is prompted to check the physical network connection; and determine whether the MoCA function is enabled, and when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware, or when the MoCA function is not enabled, enter the configuration page and prompt the user to open MoCA. Function, restart after saving user settings; determine whether the MoCA firmware is successfully downloaded, and when the above MoCA firmware download is successful, perform frequency sweeping in the coaxial cable network, and perform band negotiation and association with the slave set top box 30, in the above MoCA firmware When the download fails, the user is prompted to initiate an error and restart; and the IPTV data received from the home gateway 10 is sent to the terminal device connected thereto, or the IPTV data is converted into data suitable for coaxial cable transmission, and sent to the slave. Set top box 30;

From the set top box 30, used to determine whether the MoCA function is enabled during initialization, and when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware, or when the MoCA function is not enabled, enter the configuration page and prompt the user to enable the MoCA function. After saving the user settings, restarting; determining whether the MoCA firmware is successfully downloaded, and when the MoCA firmware download is successful, performing frequency sweeping in the coaxial cable network, performing band negotiation and association with the host set top box 20, or downloading the above MoCA firmware. When it fails, the user is prompted to start an error and restart; determine whether the association is successful within the preset time, and when the association fails within the preset time, prompt the user that the network link is disconnected and retry, and the data used for sending the host set-top box 20 Convert to IPTV data, send it to the connected terminal device, or convert local service requests into a suitable coaxial cable transmission industry Request and forward to the host set top box 20.

The invention connects the host set top box and the slave set top box with the existing coaxial cable routing in the home, so that the position of the pre-home network system, the home gateway, the existing cable television network and the terminal equipment is not changed. IPTV access, that is, as long as there is a home coaxial cable routing interface, IPTV access can be realized by adding a set-top box, and the set-top box can finally access the external IPTV network through the host-top box. On-demand, live broadcast, recording and other functions and services.

As shown in FIG. 3, it is a schematic block diagram of a second embodiment of a coaxial cable-based IPTV home network system according to the present invention. This embodiment is similar to the first embodiment shown in FIG. 2 in that it also includes a home gateway 10 and The host top box 20 and the slave set top box 30, and the functions of the components are also the same as those of the first embodiment. The difference between this embodiment and the first embodiment shown in FIG. 2 is that the embodiment is only one slave set top box. The scene, and the set top box 20 and the set top box 30 in this embodiment use the set top box shown in FIG. 1, that is:

The host set top box 20 includes a main processor 21, a multi-port switch chip 22, a MoCA chip 23, a coaxial cable interface 24, and an Ethernet interface 25, wherein

The main processor 21 is configured to process the received data, or forward the local service request to the multi-port switch chip 22; and determine whether the connection with the home gateway 10 is normal, and when the connection with the home gateway 10 is abnormal, Prompt the user to check the physical network connection; and determine whether the MoCA function is enabled, and when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware to the MoCA chip 23, or when the MoCA function is not enabled, enter the configuration page and prompt the user to enable MoCA function, restart after saving user settings;

The multi-port switch chip 22 has a port connected to the main processor 21 via a ΜΠ bus, and a port is connected to the MoCA chip 23 via a ΜΠ bus for forwarding IPTV data received by the Ethernet interface 25 to the main processor 21 and / Or the MoCA chip 23, or forward the received service request to the home gateway 10 through the Ethernet interface 25; The MoCA chip 23 is coupled to the coaxial cable interface 24 for converting the received IPTV data into data suitable for coaxial cable transmission and forwarded to the slave set top box 30 via the coaxial cable interface 24; or will receive the slave set top box 30. The service request is converted into an IPTV service request, forwarded to the multi-port switch chip 22, and used to determine whether the MoCA firmware is successfully downloaded, and when the MoCA firmware download succeeds, the frequency band negotiation is performed with the set top box 30 in the swept coaxial cable network. And associated, when the MoCA firmware download fails, prompt the user to start an error and restart.

The set top box 30 includes a main processor 31, a multi-port switch chip 32, a MoCA chip 33, a coaxial cable interface 34, and an Ethernet interface 35, wherein

The main processor 31 is configured to process the received data, or forward the local service request to the multi-port switch chip 32. Also, it is used to determine whether the MoCA function is enabled, and when the MoCA function is enabled, load the MoCA driver and download the MoCA. Firmware to the MoCA chip 33, or when the MoCA function is not enabled, enter the configuration page and prompt the user to enable the MoCA function, save the user settings and restart;

The multi-port switch chip 32 has a port connected to the main processor 31 via a ΜΠ bus, and a port is connected to the MoCA chip 33 via a ΜΠ bus for forwarding the received IPTV data to the main processor 31, or will receive The service request is forwarded to the MoCA chip 33;

The MoCA chip 33 is connected to the coaxial cable interface 34 for converting data received by the coaxial cable interface 34 into IPTV data, and transmitting it to the multi-port switching chip 32, or converting the received service request into a suitable coaxial The service request for cable transmission is sent to the set top box 20 through the coaxial cable interface 34, and is also used to determine whether the MoCA firmware is successfully downloaded, and when the MoCA firmware download is successful, in the frequency sweeping coaxial cable network, with the host set top box 20 The frequency band is negotiated and associated, and it is determined whether the association is successful within a preset time, and when the association fails within a preset time, the user network link is prompted to be disconnected and retried; or when the MoCA firmware download fails, the user is prompted to start an error and restart.

The coaxial cable interface of the host set top box 20 and the coaxial cable interface from the set top box 30 pass through the home The coaxial cable is connected; the Ethernet interface 25 of the set top box 20 is connected to the home gateway 10 via a network cable, and is idle from the Ethernet interface 35 of the set top box 30.

As shown in FIG. 4, it is a data processing flowchart of the IPTV home network system based on the coaxial cable of the present invention. This embodiment is based on the system shown in FIG. 3 and includes the following steps:

Step S001: The system is powered on and initialized:

This step includes an initialization process of the set top box 20 and an initialization process from the set top box 30. As shown in FIG. 5, it is a flowchart of the initialization process of the host set-top box of the present invention, which includes the following steps: Step S10: It is determined whether the connection with the home gateway 10 is normal. If not, step S11 is performed; if normal, step S12 is performed. ;

Step S11: prompting the user to check the physical network connection, and performing step S10;

Step S12: determining whether the MoCA function is enabled, if yes, proceeding to step S15, otherwise, performing step S13;

Step S13: Enter the configuration page, and prompt the user to enable the MoCA function, waiting for the user to enable the MoCA function;

Step S14: After the user starts the MoCA function, save the user settings and restart, and perform the steps.

S10;

Step S15: loading the MoCA driver, and downloading the MoCA firmware from the local to the local MoCA chip;

The MoCA firmware is stored in the flash memory of the set-top box. After the driver is successfully loaded, the main processor of the set-top box controls the MoCA firmware to be downloaded to the MoCA chip to enable the MoCA chip to work normally.

Step S16: determining whether the MoCA firmware is successfully downloaded, and if yes, executing step S18; otherwise, executing step S17;

Step S17: prompting the user to start an error and restarting, after the user restarts, performing step S10; Step S18: Sweeping the coaxial cable network, and performing band negotiation and association with the slave set top box 30 therein. The initialization of the host set-top box ends.

As shown in FIG. 6, it is a flowchart of the initialization process of the set top box of the present invention, including the following steps: Step S20: determining whether the MoCA function is enabled, if yes, executing step S23; otherwise, performing step S21;

Step S21: Enter the configuration page, and prompt the user to enable the MoCA function, waiting for the user to enable the MoCA function;

Step S22: After the user starts the MoCA function, save the user settings and restart, and perform the steps.

S20;

Step S23: loading the MoCA driver, and downloading the MoCA firmware from the local to the local MoCA chip;

Step S24: determining whether the MoCA firmware is successfully downloaded, and if yes, executing step S26; otherwise, executing step S25;

Step S25: prompting the user to start an error and restarting, after the user restarts, performing step S20; Step S26: sweeping the coaxial cable network, and performing band negotiation and association with the host set-top box 20 therein;

Step S27: determining whether the association is successful within a preset time, if yes, the initialization is successful; otherwise, executing step S28;

Step S28: prompting the user that the network link is disconnected and retrying, and executing step S26.

After the association is successful, the master and slave set-top boxes work in the same frequency band, and the set top box 30 can receive data from the IPTV network through the set top box 20. If the power is removed from the set top 30, the set top box 20 deletes and powers off the slave set top box 30. The association.

Step S002: The host set top box 20 sends a service request to the home gateway 10;

In this step, the service request includes a local service request and a service request from the set top box 30, If the service request comes from the set top box, the host set top box 20 first converts the service request into an IPTV network service request, and then forwards the request to the home gateway 10.

Step S003: Forward the IPTV network data sent by the home gateway 10 to the local terminal device, or convert the data into a suitable coaxial cable transmission, and send it to the slave set top box 30;

Step S004: The received data is converted from the set top box 30 into IPTV network data, and sent to the terminal device connected thereto.

The above description shows and describes a preferred embodiment of the present invention, but as described above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be construed as being Other combinations, modifications, and environments are possible and can be modified by the teachings of the above teachings or related art within the scope of the inventive concept described herein. All changes and modifications made by those skilled in the art are intended to be within the scope of the appended claims. Industrial applicability

The present invention realizes the access of IPTV throughout the home without changing the network and equipment before entering the home, and without rewiring.

Claims

Claim

A set top box, comprising a main processor, the set top box further comprising a multi-port switch chip, a coaxial cable multimedia alliance MoCA chip, a coaxial cable interface and at least one Ethernet interface, and a port of the multi-port switch chip The main processor is connected, and a port is connected to the MoCA chip;

The MoCA chip is connected to the coaxial cable interface,

The Ethernet interface is connected to a port of the multi-port switch chip.

The set top box according to claim 1, wherein the multi-port switch chip is connected to the main processor and the MoCA chip through a medium independent interface bus.

3. An interactive network television IPTV home network system based on coaxial cable, including a home gateway, a host set-top box, and a set-top box.

The home gateway is connected to the IPTV network, and configured to send the received IPTV network data to the host set-top box;

The host set-top box is connected to the home gateway through a network cable, and is connected to the slave set-top box through a home coaxial cable, and is configured to send the received IPTV network data to the terminal device connected thereto, or receive the same Converting the IPTV network data into data suitable for coaxial cable transmission, and transmitting the data to the slave set top box;

The slave set top box is configured to convert the received data into IPTV network data and send the data to the terminal device connected thereto.

4. The system according to claim 3, wherein

The home gateway is further configured to forward the service request sent by the host set-top box to the IPTV network; The host set-top box is further configured to forward a local service request to the home gateway, or convert the received service request from the set-top box into an IPTV network service request, and forward the request to the home gateway;

The slave set top box is further configured to convert a local service request into a service request suitable for coaxial cable transmission and forward the request to the host set top box.

5. The system according to claim 3 or 4, wherein

The host set-top box is further configured to: determine, during initialization, whether the connection with the home gateway is normal, and when the connection with the home gateway is abnormal, prompt the user to check the physical network connection; and determine whether the MoCA function is enabled. And when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware, or when the MoCA function is not enabled, enter the configuration page and prompt the user to enable the MoCA function, save the user settings and restart; determine whether the MoCA firmware is successfully downloaded, and When the download of the MoCA firmware is successful, the frequency sweep is performed in the coaxial cable network, and the frequency band negotiation and association with the slave set top box is performed, or when the download of the MoCA firmware fails, the user is prompted to start an error and restart;

The slave set-top box is further configured to determine whether the MoCA function is enabled during initialization, and when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware, or when the MoCA function is not enabled, enter the configuration page and prompt the user to enable MoCA function, save user settings and restart; determine whether the MoCA firmware is successfully downloaded, and when the MoCA firmware download is successful, perform frequency sweeping in the coaxial cable network, perform band negotiation and association with the host set-top box, and determine whether If the association is successful within the preset time, and the association fails within the preset time, the user network link is prompted to be disconnected and retried; or when the MoCA firmware download fails, the user is prompted to start an error and restart.

The system according to claim 3 or 4, wherein the host set top box comprises a main processor, a multi-port switch chip, a MoCA chip, a coaxial cable interface, and at least one Ethernet Interface,

The multi-port switch chip has a port connected to the main processor through a ΜΠ bus, and a port is connected to the MoCA chip through a ΜΠ bus, and is configured to forward the IPTV network data received by the Ethernet interface to the Deriving the main processor and/or the MoCA chip, or forwarding the received service request to the home gateway through the Ethernet interface;

The MoCA chip is connected to the coaxial cable, and configured to convert the received IPTV network data into data suitable for coaxial cable transmission, and forward the data to the slave set top box through the coaxial cable interface; or The received service request is converted into an IPTV network service request and forwarded to the multi-port switch chip.

7. The system according to claim 6, wherein

The main processor of the host set top box is further configured to determine whether the connection with the home gateway is normal, and when the connection with the home gateway is abnormal, prompting the user to check the physical network connection; and determining whether the MoCA function is enabled, And when the MoCA function is enabled, the MoCA driver is loaded and the MoCA firmware is downloaded to the MoCA chip, or when the MoCA function is not enabled, the configuration page is displayed and the user is prompted to enable the MoCA function, and the user settings are saved and restarted;

The MoCA chip of the host set-top box is further configured to determine whether the MoCA firmware is successfully downloaded, and when the MoCA firmware is successfully downloaded, in the frequency sweeping coaxial cable network, the frequency band negotiation and association with the slave set top box therein, or When the MoCA firmware download fails, the user is prompted to start an error and restart.

The system according to claim 3, wherein the slave set top box comprises a main processor, a multi-port switch chip, a MoCA chip, a coaxial cable interface, and at least one Ethernet interface, and the main processor is configured to: Process the received data, or forward the local service request to the office Multi-port switching chip;

The multi-port switch chip has a port connected to the main processor through a ΜΠ bus, and a port is connected to the MoCA chip through a ΜΠ bus for forwarding the received IPTV network data to the main processor. Or forwarding the received service request to the MoCA chip; the MoCA chip is connected to the coaxial cable, and configured to convert data received by the coaxial cable interface into IPTV network data, and send the data to the IPTV network The multi-port switch chip or converting the received service request into a format suitable for coaxial cable transmission and transmitting to the host set-top box through the coaxial cable interface.

9. The system according to claim 8, wherein

The slave processor of the set top box is further configured to determine whether the MoCA function is enabled, and when the MoCA function is enabled, load the MoCA driver and download the MoCA firmware to the MoCA chip, or enter the configuration when the MoCA function is not enabled. The page prompts the user to enable the MoCA function, save the user settings and restart;

The MoCA chip of the slave set top box is further configured to determine whether the MoCA firmware is successfully downloaded, and when the MoCA firmware download succeeds, in the frequency sweeping coaxial cable network, the frequency band negotiation and association with the host set top box therein is performed to determine whether If the association is successful within the preset time, and the association fails within the preset time, the user network link is prompted to be disconnected and retried; or when the MoCA firmware download fails, the user is prompted to start an error and restart.

10. A data processing method for an IPTV home network system based on a coaxial cable, comprising the following steps:

After the system is powered on and initialized successfully, the host set-top box forwards the service request to the home gateway, and forwards the IPTV network data sent by the home gateway to the terminal device connected thereto, or converts the IPTV network data. Data suitable for coaxial cable transmission is sent to the slave set top box; The slave set top box converts the received data into IPTV network data and transmits it to the terminal device connected thereto.

11. The method according to claim 10, wherein the step of powering up and initializing the system comprises an initialization process of the host set top box and an initialization process from the set top box,

The initialization process of the host set top box includes the following steps:

Load the MoCA driver and download the MoCA firmware locally;

Sweeping a coaxial cable network, and performing band negotiation and association with the set top box therein; the initialization process of the slave set top box includes the following steps:

Load the MoCA driver and download the MoCA firmware locally;

Sweeping a coaxial cable network, performing band negotiation and association with the host set-top box;

12. The method of claim 10, wherein the service request comprises a local service request and a service request from the slave set top box.

The method according to any one of claims 10 to 12, wherein, before the host set-top box forwards the service request from the set-top box to the home gateway, performing the following steps: converting the service request Into the IPTV network service request.