CN111464847B - Intelligent wired digital set-top box supporting network multi-scene application - Google Patents

Abstract

The invention discloses an intelligent wired digital set-top box supporting network multi-scenario applications, including a DOCSIS3.0 chip, an RJ45 interface, a PHY interface, an RGMII interface, a main control chip, a PCIE interface and a WIFI module; external devices can be communicated with through a network port or WIFI The DOCSIS3.0 chip transmits data, and can also access the Internet phone or access the IPTV server, Internet, OTT server and/or video-on-demand server through the DOCSIS3.0 chip; the main control chip can control network multi-scenario applications through the network port, or through The DOCSIS3.0 chip accesses the Internet phone or accesses the IPTV server, the Internet, the OTT server and/or the video-on-demand server. The present invention realizes network multi-scenario application based on the intelligent wired digital set-top box, and satisfies the diversified playback requirements of users.

Description

An intelligent wired digital set-top box supporting network multi-scenario applications

technical field

The invention relates to the technical field of digital communication, in particular to an intelligent wired digital set-top box supporting network multi-scenario applications.

Background technique

At present, common audio-visual new media terminal devices mainly include cable digital TV set-top boxes, home computers, tablet computers, DVDs, mobile phones and smart TVs. Among them, the most typical product in the digitalization process of cable digital TV is the cable digital set-top box, which is mainly distributed to home users by operators in various places. .

Today's social network is more and more developed, and the content of online videos such as web dramas, micro movies and funny selfies is becoming more and more abundant. Home users are increasingly dissatisfied with the video content of traditional cable digital set-top boxes. The big change is that most people used to sit in the living room and watch TV, but now they can watch TV anytime and anywhere at home, and can watch video content in the living room, study room, bedroom, or even the bathroom with a mobile phone, pad (tablet computer), etc. At present, the traditional digital cable set-top box uses a simple operating system, which can only provide TV and video playback, and can only play the content of broadcasting and television operators, and cannot connect to the public network to play video content; while the OTT box can only play network video content, and cannot Provide the content of radio and television operators; and the cat of China Telecom in the family can only provide the network. Moreover, the cable digital set-top box is currently still a traditional one-way data transmission set-top box, or a pseudo-two-way, which only performs services such as upward upgrade or subscription. It can be seen that the traditional digital cable set-top box has a single function and cannot meet the diverse playback needs of users.

Contents of the invention

The purpose of the present invention is to provide an intelligent wired digital set-top box that supports network multi-scenario applications, so as to solve the problem that the traditional digital cable set-top box has single functions and cannot meet the diverse playback needs of users.

To achieve the above object, the present invention provides the following scheme:

An intelligent wired digital set-top box supporting network multi-scenario applications, said intelligent wired digital set-top box comprising: DOCSIS3.0 chip, RJ45 interface, PHY interface, RGMII interface, main control chip, PCIE interface and WIFI module;

The DOCSIS3.0 chip is connected to the network bridge through the RJ45 interface on the one hand, connects the phone or accesses the IPTV server through the network bridge; on the other hand, the DOCSIS3.0 chip is connected to the router through the RJ45 interface, and accesses the Internet through the router , an OTT server and/or an on-demand video server; the DOCSIS3.0 chip is connected to an external device through the PHY interface; the DOCSIS3.0 chip is connected to the main control chip through the RGMII interface; the DOCSIS3.0 The chip is connected to the WIFI module through the PCIE interface; the WIFI module is wirelessly connected to external devices.

Optionally, the smart cable digital set-top box further includes: a running memory; the running memory is connected to the DOCSIS3.0 chip; the running memory adopts 128MB 3rd generation running memory DDR3.

Optionally, the smart wired digital set-top box further includes: a storage chip; the storage chip is connected to the DOCSIS3.0 chip; and the storage chip is an 8MB serial flash memory chip.

Optionally, the intelligent wired digital set-top box also includes: a power supply module; the power supply module is connected to the DOCSIS3.0 chip; the power supply module adopts a DC-to-DC converter; The ampere direct current is converted into direct current of 3.3 volts, 2.5 volts, 1.5 volts and/or 1.0 volts for use by the intelligent cable digital set-top box.

Optionally, the smart wired digital set-top box also includes: a splitter; the splitter is connected to the DOCSIS3.0 chip; the splitter is used to convert the radio frequency signal into a differential signal and send it to the DOCSIS3.0 chip .

Optionally, the DOCSIS3.0 chip uses a BCM3383 chip.

Optionally, the external devices include mobile phones, tablet computers, home computers and smart TVs.

Optionally, the intelligent wired digital set-top box also includes: a Gigabit network transformer; one end of the Gigabit network transformer is connected to the DOCSIS3.0 chip through the PHY interface; the other end of the Gigabit network transformer is connected to the RJ45 interface is connected with external equipment.

Optionally, the intelligent wired digital set-top box also includes: a 100M physical chip; one end of the 100M physical chip is connected to the DOCSIS3.0 chip through the RGMII interface; the other end of the 100M physical chip is connected to the The 10BASE-T or 100Base-T standard interface is connected with the main control chip.

According to the specific embodiments provided by the invention, the invention discloses the following technical effects:

The present invention provides an intelligent wired digital set-top box supporting network multi-scenario applications, said intelligent wired digital set-top box comprising DOCSIS3.0 chip, RJ45 interface, PHY interface, RGMII interface, main control chip, PCIE interface and WIFI module; wherein said On the one hand, the DOCSIS3.0 chip is connected to the network bridge through the RJ45 interface, and connects to the phone or accesses the IPTV server through the network bridge; on the other hand, the DOCSIS3.0 chip is connected to the router through the RJ45 interface, and accesses the Internet, OTT server and/or video-on-demand server; the DOCSIS3.0 chip is connected with the external device through the PHY interface; the DOCSIS3.0 chip is connected with the main control chip through the RGMII interface; the DOCSIS3.0 chip is connected with the main control chip through the RGMII interface; The PCIE interface is connected with the WIFI module; the WIFI module is wirelessly connected with external devices. Therefore, the external device can transmit data with the DOCSIS3.0 chip through the network port or WIFI, and can also access the Internet phone or access the IPTV server, Internet, OTT server and/or video-on-demand server through the DOCSIS3.0 chip; Port control network multi-scenario application system, can also access Internet phone or access IPTV server, Internet, OTT server and/or video-on-demand server through DOCSIS3. , to meet the diverse playback needs of users.

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 accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to the drawings provided in the present invention without paying creative labor.

Fig. 1 is the hardware block diagram of the intelligent wired digital set-top box that supports network multi-scenario application that the present invention provides;

Fig. 2 is a functional block diagram of an intelligent wired digital set-top box supporting network multi-scenario applications provided by the present invention;

Fig. 3 is the hardware circuit diagram of the intelligent cable digital set-top box that supports network multi-scenario application provided by the present invention;

Fig. 4 is a topological structure diagram of an intelligent wired digital set-top box supporting network multi-scenario applications provided by the present invention;

FIG. 5 is a schematic diagram of the software architecture of the intelligent wired digital set-top box supporting network multi-scenario applications provided by the present invention.

detailed description

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 making creative efforts belong to the protection scope of the present invention.

The purpose of the present invention is to provide an intelligent wired digital set-top box that supports network multi-scenario applications, so as to solve the problem that the traditional digital cable set-top box has single functions and cannot meet the diverse playback needs of users.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the hardware block diagram of the intelligent wired digital set-top box that supports network multi-scenario application provided by the present invention; Fig. 2 is the functional block diagram of the intelligent wired digital set-top box that supports network multi-scene application provided by the present invention; Fig. 3 is the support that the present invention provides A hardware circuit diagram of an intelligent wired digital set-top box for network multi-scenario applications; FIG. 4 is a topology diagram of an intelligent wired digital set-top box supporting network multi-scenario applications provided by the present invention. Referring to Fig. 1 to Fig. 4, the intelligent wired digital set-top box of the present invention comprises: DOCSIS3. The intelligent wired digital set-top box of the present invention supports wired digital TV and broadband access, supports DOCSIS3.0 (third-generation cable data transmission system), and supports Wi-Fi. Among them, DOCSIS (Data Over Cable Service Interface Specifications) is the cable data service interface specification.

1 and 3, the DOCSIS3.0 chip is connected to external devices through the PHY interface; the DOCSIS3.0 chip is connected to the main control chip through the RGMII interface. The DOCSIS3.0 chip is connected to the WIFI module through the PCIE interface; the WIFI module is wirelessly connected to external devices. Referring to Fig. 2, the DOCSIS3.0 chip of the intelligent cable digital set-top box is connected with the network bridge through the RJ45 interface on the one hand, connects the phone or accesses the IPTV server through the network bridge; the DOCSIS3.0 chip is connected through the RJ45 The interface is connected with a router through which the Internet, OTT server and/or video-on-demand server are accessed.

The intelligent wired digital set-top box of the present invention is connected with the network bridge through RJ45 (Registered Jack 45), and the network bridge can be connected with a telephone or visit an IPTV (Interactive Network Television) server. The IP phone can also connect to the phone or access the IPTV server through the network bridge. The intelligent wired digital set-top box is connected with the signaling network (the dedicated data support network for the public channel signaling system to transmit signaling) through the RJ45 and router, and can realize the access of the Internet, OTT server, and video-on-demand server.

Both the cable broadcast television system and the cable network system transmit content through cable digital signals. External devices can transmit data with the DOCSIS3.0 chip through the network port, and can also be connected with the wired network system through the DOCSIS3.0 chip. The DOCSIS3.0 chip is connected to the main control chip through the network port. The main control chip can control the network multi-scenario application through the network port, and can also be connected to the wired network system through the DOCSIS3.0 chip. The DOCSIS3.0 chip communicates with the WiFi module through the PCIE interface, and realizes functions such as wireless coverage through the WiFi module.

The smart wired digital set-top box adopts the Android operating system, integrates the smart TV operating system library, and docks with the front-end system of related technical services, supports flexible application deployment and multi-service fast online, supports multiple ways of remote control operation experience, and supports broadband Internet access. It can realize network multi-scenario application. The network multi-scenario application of the intelligent wired digital set-top box supports the distribution and sharing of radio and television programs and other media to terminals such as home mobile phones and tablets through Wi-Fi, and realizes mutual access to the intranet, network storage, distribution on the intranet, somatosensory remote control, For scenario applications such as media sharing, web surfing, wireless coverage, telephone access, video on demand, and terminal network management, the functional block diagram is shown in Figure 2.

The hardware platform of the intelligent wired digital set-top box is designed with the hardware circuit of BCM3383 as the core. As shown in Figure 1 and Figure 3, the DOCSIS3.0 chip of the intelligent wired digital set-top box adopts the BCM3383 chip. The BCM3383 chip is a DOCSIS 3.0 cable TV modulation coordinator system-on-chip (SoC, System on Chip) produced by Broadcom. It is also the industry's first DOCSIS 3.0 solution and integrates a full-channel capture front end.

The core hardware circuit diagram based on BCM3383 is shown in Figure 3. The running memory is connected with the DOCSIS3.0 chip; the running memory adopts 128MB 3rd generation running memory DDR3. The storage chip is connected with the DOCSIS3.0 chip; the storage chip is an 8MB serial flash memory (SPI Flash) chip. The power supply module is connected to the DOCSIS3.0 chip; the power supply module adopts a DC-to-DC converter; the power supply module is used to convert 12 volts and 2 amperes of direct current (Power 12V/2A) into 3.3 volts, 2.5 volts , 1.5 volts and/or 1.0 volts of direct current are used by the intelligent wired digital set-top box. The WiFi module adopts BCM43217 chip.

As shown in Figure 3, the intelligent wired digital set-top box also includes: a splitter (Diplexer); the splitter is connected to the DOCSIS3.0 chip; the splitter is used to convert a radio frequency signal (RF) into a differential signal and sent to the DOCSIS3.0 chip.

The intelligent wired digital set-top box also includes: Giga Transformer (Giga Transform); one end of the Giga Transformer is connected to the DOCSIS3.0 chip through a Gigabit PHY interface (GPHY); The other end is connected with external equipment through the RJ45 interface. The external device can be a mobile phone, a tablet computer, a home computer and a smart TV.

The intelligent wired digital set-top box also includes: a 100M physical chip BCM50212; one end of the 100M physical chip is connected to the DOCSIS3.0 chip through the RGMII interface; the other end of the 100M physical chip is connected through a 10BASE-T Or a 100Base-T (10/100base T) standard interface is connected to the main control chip (CPU).

The core BCM3383 chip of the intelligent wired digital set-top box of the present invention is equipped with 8MB serial flash memory (SPIFlash) and 128MB 3rd generation running memory (DDR3) on the periphery to realize the minimum system. The BCM3383 chip processes the downlink radio frequency signal received by the front end, and converts the signal to be transmitted into an uplink radio frequency signal and sends it out. The front end of the BCM3383 chip uses a splitter (diplexer) to convert the radio frequency signal into a differential signal and send it to the BCM3383. The back end of the BCM3383 chip is respectively connected to the BCM43217 WiFi module with a PCIE (high-speed serial computer expansion bus standard) interface to realize wireless coverage; the physical signal of the Gigabit Ethernet port is converted through a network transformer (Giga Transform) for external device connection; RGMII The interface is connected to the 100M physical chip BCM50212, which converts the physical signal of the 100M network port to form a 100M network interface for use by the set-top box host (CPU). The entire intelligent wired digital set-top box system uses 12V 2A DC power supply, and uses a DC-to-DC converter to generate 3.3V, 2.5V, 1.5V, and 1.0V for other chips in the system.

Among them, RGMII (Reduced Gigabit Media Independent Interface) is Reduced GMII (Gigabit Media Independent Interface). RGMII adopts 4-bit data interface, the working clock is 125MHz, and transmits data at the same time on the rising edge and falling edge, so the transmission rate can reach 1000Mbps. 100Base-T is a local area network (LAN) standard that operates at a rate of 100Mbps. It is often referred to as the Fast Ethernet standard and uses two pairs of UTP (unshielded twisted pair) copper cables. The difference between Fast Ethernet 100Base-T and 10BASE-T is that the network rate is ten times that of 10BASE-T, that is, 100M. The PHY (PhysicalLayer, PHY) interface is a physical layer interface, and the GPHY is a Gigabit physical layer interface. PCI-Express (peripheral component interconnect express, PCIE) is a high-speed serial computer expansion bus standard.

In order to better realize the data communication between the internal network and the external network, and to achieve the application of multiple network scenarios, it is necessary to redesign the topology of the intelligent wired digital set-top box. The specific topology structure of the smart wired digital set-top box of the present invention is shown in FIG. 4 . The present invention is based on DOCSIS3.0 on the basis of traditional wired digital set-top boxes and wired networks, and with the help of network technology, completes the network multi-scenario application of intelligent wired digital set-top boxes. The intelligent wired digital set-top box communicates with the wired modem of the router or bridge through the network port, and the wired modem is connected to the server site or the external Internet through the coaxial cable. The mobile device is authenticated by SSID (Service Set Identifier, Service Set Identifier) to access the router WIFI, and access to the set-top box. At the same time, the computer can also access the server site or the external Internet through a router or a bridge.

The software architecture of the intelligent wired digital set-top box of the present invention is a multi-layer framework mode, and FIG. 5 is a schematic diagram of the software architecture of the intelligent wired digital set-top box supporting network multi-scenario applications provided by the present invention. Referring to FIG. 5 , the software architecture of the intelligent cable digital set-top box according to the present invention has been further improved and expanded on the traditional Linux system level application. The software architecture of described intelligent wired digital set-top box is divided into hardware physical layer, real-time operating system and network stack, board-level support package, basic kind DOCSIS cable modem application, wired multimedia application layer (comprising WIFI, NAT (NetworkAddress Translation, network address Conversion), DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol)), wired switching applications and libraries, etc. The intelligent wired digital set-top box of the present invention expands the relevant frame structure on the basis of this, the upper layer can only operate the lower layer, and cannot directly access when the layer is crossed, and completes the access and service between different layers through the interface.

The intelligent wired digital set-top box of the present invention is developed from the traditional wired digital set-top box, uses Android or Apple operating system, supports intelligent interconnection with TV or other equipment, and has more intelligent gateways and wireless coverage than traditional wired digital set-top boxes and other business functions. Many audio and video programs that could only be watched through set-top boxes in the past can also be watched on mobile phones, tablets and other devices. The network multi-scenario application of wired digital top boxes for smart phones is a new business generated with the development of the network, the improvement of broadband bandwidth and the increase of smart devices in recent years, including intranet mutual access scenarios, intranet distribution scenarios, and network storage Scenarios, wireless coverage scenarios, on-demand business scenarios, terminal network management scenarios and other scenarios. The intelligent wired digital set-top box of the present invention is applied to the latest generation of wired digital set-top boxes to realize digital media viewing services in various scenarios and meet more and more user demands.

The above descriptions are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto, any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention , should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The descriptions of the above embodiments are only used to help understand the device of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to the present invention Thoughts, there will be changes in specific implementation methods and application ranges. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (3)

1. An intelligent cable digital set-top box supporting network multi-scenario applications, the intelligent cable digital set-top box comprising: the system comprises a DOCSIS3.0 chip, an RJ45 interface, a PHY interface, an RGMII interface, a main control chip, a PCIE interface and a WIFI module;

the DOCSIS3.0 chip is connected with a network bridge through an RJ45 interface, and is connected with a telephone or accesses an IPTV server through the network bridge; the DOCSIS3.0 chip is connected with a signaling network through an RJ45 interface and a router on the other hand, and accesses the Internet, an OTT server and/or a video-on-demand server through the router; the DOCSIS3.0 chip is connected with external equipment through the PHY interface; the DOCSIS3.0 chip is connected with the main control chip through the RGMII interface; the DOCSIS3.0 chip is connected with the WIFI module through the PCIE interface; the WIFI module is in wireless connection with external equipment;

the intelligent wired digital set-top box further comprises: a gigabit network transformer; one end of the gigabit network transformer is connected with the DOCSIS3.0 chip through the PHY interface; the other end of the kilomega network transformer is connected with external equipment through an RJ45 interface;

the intelligent wired digital set-top box further comprises: a hundred million physical chip; one end of the hundred million physical chip is connected with the DOCSIS3.0 chip through the RGMII interface; the other end of the hundred-million physical chip is connected with the main control chip through a 10BASE-T or 100BASE-T standard interface;

RGMII is a gigabit medium independent interface, adopts a 4-bit data interface, has a working clock of 125MHz, and simultaneously transmits data at a rising edge and a falling edge, and the transmission rate can reach 1000Mbps;100Base-T uses two pairs of unshielded twisted pair copper cables; GPHY is gigabit physical layer interface;

the intelligent cable digital set top box adopts an Android operating system and integrates an intelligent television operating system library;

the intelligent wired digital set-top box further comprises: a splitter; the splitter is connected with the DOCSIS3.0 chip; the splitter is used for converting radio frequency signals into differential signals and sending the differential signals to the DOCSIS3.0 chip;

the intelligent wired digital set-top box further comprises: operating a memory; the operating memory is connected with the DOCSIS3.0 chip; the operating memory adopts 128MB 3 generation operating memory DDR3;

the intelligent wired digital set-top box further comprises: a memory chip; the memory chip is connected with the DOCSIS3.0 chip; the memory chip adopts an 8MB serial flash memory chip;

the DOCSIS3.0 chip adopts a BCM3383 chip;

8MB serial flash memory and 128MB 3 generation running memory are configured at the periphery of a core BCM3383 chip of the intelligent cable digital set-top box; the BCM3383 chip processes the downlink radio frequency signals received by the front end and converts signals to be transmitted into uplink radio frequency signals to be transmitted; the front end of the BCM3383 chip converts radio frequency signals into differential signals by using a splitter and sends the differential signals to the BCM3383; the rear end of the BCM3383 chip is connected with a BCM43217 WiFi module through PCIE interfaces to realize wireless coverage; kilomega network port physical signals are converted by a kilomega network transformer to be used for connecting external equipment; the RGMII interface is connected with a hundred-million physical chip BCM50212, and converts a hundred-million network port physical signal to form a hundred-million network interface for the use of a set top box host; the whole intelligent wired digital set-top box system uses 12V 2A direct current power supply, and the inside of the system uses a direct current to direct current converter to generate 3.3V, 2.5V, 1.5V and 1.0V for other chips of the system to use;

the software architecture of the intelligent cable digital set top box is divided into a hardware physical layer, a real-time operating system and a network stack, a board-level support packet, a basic DOCSIS cable modem application, a cable multimedia application layer, a cable switching application and a library; the wired multimedia application layer comprises WIFI, NAT and DHCP; access and services between different layers are accomplished through the interface.

2. The intelligent cable digital set-top box according to claim 1, further comprising: a power supply module; the power supply module is connected with the DOCSIS3.0 chip; the power supply module adopts a DC-to-DC converter; the power supply module is used for converting the direct current of 12 volts and 2 amperes into the direct current of 3.3 volts, 2.5 volts, 1.5 volts and/or 1.0 volt to be used by the intelligent cable digital set top box.

3. The intelligent cable digital set-top box according to claim 1, wherein the external device comprises a cell phone, a tablet computer, a home computer and a smart television.

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