WO2007128237A1 - Dispositif passerelle domestique - Google Patents

Dispositif passerelle domestique Download PDF

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Publication number
WO2007128237A1
WO2007128237A1 PCT/CN2007/001468 CN2007001468W WO2007128237A1 WO 2007128237 A1 WO2007128237 A1 WO 2007128237A1 CN 2007001468 W CN2007001468 W CN 2007001468W WO 2007128237 A1 WO2007128237 A1 WO 2007128237A1
Authority
WO
WIPO (PCT)
Prior art keywords
ethernet
unit
signal
external communication
home gateway
Prior art date
Application number
PCT/CN2007/001468
Other languages
English (en)
French (fr)
Inventor
Han Li
Yan Zhang
Jinglei Liu
Congxing Ouyang
Bing Wei
Yuhong Huang
Original Assignee
China Mobile Communications Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Mobile Communications Corporation filed Critical China Mobile Communications Corporation
Priority to US12/299,005 priority Critical patent/US8036235B2/en
Priority to EP20070721041 priority patent/EP2015531B1/en
Priority to JP2009508095A priority patent/JP4654316B2/ja
Publication of WO2007128237A1 publication Critical patent/WO2007128237A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/66Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/09Mapping addresses
    • H04L61/25Mapping addresses of the same type
    • H04L61/2503Translation of Internet protocol [IP] addresses
    • H04L61/2514Translation of Internet protocol [IP] addresses between local and global IP addresses
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/60Types of network addresses
    • H04L2101/618Details of network addresses
    • H04L2101/622Layer-2 addresses, e.g. medium access control [MAC] addresses
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/09Mapping addresses
    • H04L61/25Mapping addresses of the same type
    • H04L61/2596Translation of addresses of the same type other than IP, e.g. translation from MAC to MAC addresses

Definitions

  • the present invention relates to a home gateway device, and more particularly to a home gateway device that separates an Internet access channel from an information appliance control channel by distinguishing an external or internal access signal.
  • the home gateway is a physical interface that connects to the home as an external access network and connects the home internal network to the outside. It is also a way for residential users to access various home services (including existing services and possible future appearances).
  • the platform of the service which can receive communication signals from the external network and transmit signals to a consumer device through the home network.
  • the application of the home gateway is not only the access of high-speed Internet. After the future broadband access enters the home, it will bring more service content, not only the access of the Internet, but also the visualization of the mixed video and audio stream. Telephone, and other interactive forms of entertainment services, such as online games.
  • the home gateway will perform intelligent routing algorithms that distribute these streams of information to a variety of devices such as phones, smart appliances, digital televisions, and stereos. For example, an advanced home gateway can use caller ID information to send a phone call to a phone in the home, the child's phone can only be sent to their room, or a phone call after 10 pm (excluding emergency calls) Send it away from the bedroom.
  • the existing home gateway usually has the ability to connect to the Internet and control the smart home appliances in the home, but still has the following shortcomings: First, when the user controls the smart home appliances in the home through the external communication network, it is usually used for the family. The internal specific equipment is directly controlled. This method increases the complexity and cost of operation for a network with more internal peripherals. Second, the electricity Brain Internet access and smart home appliances in the home can not effectively isolate information when entering the home gateway, so there is a considerable security risk. External illegal users may use the Internet to control smart home appliances in the home or perform destructive operations to provide home users. Bringing material and mental damage; Finally, when the signal of the internal smart home appliance enters the home gateway, the home gateway may cause the Internet to be interrupted or the control information to be incorrect because the Internet signal and the control signal cannot be effectively distinguished. Summary of the invention
  • the purpose of the present invention is to provide a home gateway device for the defects of the existing home gateway, which can reduce the complexity of controlling the internal networking device, ensure the security of the home internal network, and prevent the access and control of external illegal users. And can distinguish between the Internet signal and the control signal to avoid possible Internet interruption or control information error.
  • the present invention provides a home gateway device, including
  • a main processing board for generating signals for information processing and control
  • a computer bus signal Ethernet adapting unit connected to the main processing board, for performing signal conversion between the computer bus signal and the Ethernet signal;
  • An Ethernet frame processing unit is connected to the computer bus signal Ethernet adaptation unit, and configured to forward the received Ethernet frame according to a preset policy;
  • An internal interface unit connected to the Ethernet frame processing unit, for connecting to a home appliance in the internal network;
  • An external communication module is coupled to the main processing board and the Ethernet frame processing unit for address translation and data transfer between the internal network and the external communication network.
  • the internal interface unit is one or any combination of a power line communication modulation and demodulation unit, an Ethernet interface unit, and a wireless local area network access point, and the power line communication modulation and demodulation unit is used for the data line and the power line.
  • the multiplexed signal is used for modulation and demodulation operations;
  • the Ethernet interface unit is configured to connect to an information home appliance in the internal network through an Ethernet;
  • the WLAN access point is configured to provide a wireless communication connection.
  • the computer bus signal Ethernet adapter unit is a USB signal Ethernet adapter unit or a PCI bus Ethernet adapter unit; the USB signal Ethernet adapter unit is used for the USB signal and the Ethernet Signal conversion between network signals; the PCI bus Ethernet adaptation unit is used for converting signals between PCI signals and Ethernet signals.
  • a USB signal logic signal adaptation unit may also be included, coupled to the power line communication modem unit and the main processing board for conversion between the USB signal and the serial logic signal.
  • the Ethernet frame processing unit has:
  • a first port connected to the external communication module, configured to transmit an Ethernet signal to an external communication network through the external communication module;
  • a second port connected to the USB signal Ethernet adapter unit for transmitting a USB signal encapsulated by the USB;
  • a third port connected to the power line communication modem unit for transmitting an Ethernet signal between the internal networking device and the main processing board.
  • the Ethernet frame processing unit performs forwarding frame processing on the received Ethernet frame by using a preset policy, where the strategy is as follows:
  • the Ethernet frame processing unit will read the data format (referred to as "package format") of the data content encapsulated by the Ethernet frame. If the encapsulation format of an Ethernet frame is a USB bus frame, the Ethernet frame can only be forwarded to the second port. If an Ethernet frame is encapsulated in an IP packet, the Ethernet frame can only be forwarded to the first port.
  • packet format the data format of the data content encapsulated by the Ethernet frame.
  • the external communication module includes:
  • PCI bus Ethernet adapter unit connected to the main processing board via a PCI bus for signal conversion between a PCI signal and an Ethernet signal
  • the external communication Ethernet frame processing unit is connected to the PCI bus Ethernet adaptation unit, and is configured to forward the received Ethernet frame according to a preset port control forwarding policy;
  • An external communication adaptation unit is coupled to the external communication Ethernet frame processing unit for communicating with an external communication network.
  • the external communication Ethernet frame processing unit includes: a fourth port connected to the external communication adapting unit, configured to transmit an Ethernet signal by using the external communication adapting unit;
  • a fifth port connected to the PCI bus Ethernet adapter unit for transmitting a PCI-encapsulated Ethernet signal
  • a sixth port connected to the Ethernet frame processing unit for transmitting an Ethernet signal between the external communication network and the personal computer.
  • NAT conversion is required, that is, the external communication adaptation unit performs address conversion configuration, that is, the public IP address and the public port are associated with the dedicated IP address and the dedicated port.
  • address conversion configuration that is, the public IP address and the public port are associated with the dedicated IP address and the dedicated port.
  • the external communication adapting unit When the packet of the external communication network passes through the external communication adapting unit, it parses out the information of the transport layer port of the packet, thereby converting the destination IP address into the IP address of the intranet host device or a certain Internet computer through the lookup table, and also The public port can be converted to a dedicated port.
  • the external communication adaptation unit When the packet of the intranet passes through the external communication adaptation unit, it will also check the above correspondence table to convert the intranet private IP address and the dedicated port into a public IP address and a public port.
  • the external communication adaptation unit learns the packet information entered from the fourth port, learns the source MAC address and the source IP address in the packet, and stores the correspondence of the information in a corresponding IP/MAC table. .
  • the packet of the external communication network passes through the external communication adaptation unit, it first finds the private IP address of the intranet through the above NAT conversion, and then converts the destination MAC address of the packet to correspond to this by checking the correspondence table of the IP/MAC.
  • the MAC address of the device of the network IP When the incoming packet of the intranet passes through the external communication adaptation unit, it converts the source MAC address of the packet into the MAC address of the external communication adaptation unit.
  • the external communication adaptation unit can correctly forward the intranet and the outer network packet.
  • the external communication Ethernet frame processing unit From the sixth port to the frame of the external communication Ethernet frame processing module, the external communication Ethernet frame processing unit will forward it directly from the fourth port without any modification.
  • the external communication Ethernet frame processing unit From the fourth port to the frame of the external communication Ethernet frame processing unit, the external communication Ethernet frame processing unit will determine: 1. If the destination address of the frame is the MAC address of the computer, it will be forwarded directly from the sixth port. 2. If the destination address of the frame is the MAC address of the main processing board, it will be forwarded directly from the fifth port.
  • the frame processing strategy of the external communication Ethernet frame processing unit is as follows:
  • the present invention has the following advantages:
  • the centralized control of the home gateway device of the present invention can reduce the requirement for intelligentization of information appliances, thereby making control easier, and also reducing the intelligent configuration cost of the home appliance.
  • the home gateway device of the present invention controls the uplink and downlink Ethernet signals by using a preset frame processing policy and a port control forwarding policy, and implements an Ethernet signal for computer Internet access and an Ethernet signal of the information home appliance. Separation, thus avoiding the threat of external insecurities.
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of a home gateway device according to the present invention.
  • FIG. 2 is a schematic diagram of a port of an Ethernet frame processing unit of a home gateway device of the present invention.
  • FIG. 3 is a schematic structural diagram of an external communication module of a home gateway device according to the present invention.
  • FIG. 4 is a schematic structural diagram of Embodiment 2 of a home gateway device according to the present invention.
  • FIG. 5 is a schematic structural diagram of Embodiment 3 of a home gateway device according to the present invention.
  • FIG. 6 is a schematic structural diagram of Embodiment 4 of a home gateway device according to the present invention.
  • FIG. 7 is a schematic diagram of an application system according to Embodiment 4 of the present invention. detailed description
  • the home gateway device of the present invention controls the forwarding strategy by using a preset frame processing policy and port
  • the uplink and downlink Ethernet signals are controlled to realize the separation of the Ethernet signal for the computer Internet access and the Ethernet signal of the information home appliance, so that the operation signal of the information home appliance in the internal network can smoothly enter the main processing board.
  • the Internet signal is directly connected to the external communication network, and the two signals do not affect each other.
  • the basic components of the home gateway device include: a main processing board for generating information processing and control signals; a computer bus signal Ethernet adaptation unit, connected to the main processing board, for transmitting signals between the computer bus signal and the Ethernet signal
  • the Ethernet frame processing unit is connected to the computer bus signal Ethernet adaptation unit for forwarding the received Ethernet frame according to a preset policy;
  • the internal interface unit is connected to the Ethernet frame processing unit, Connecting to home appliances in the internal network;
  • an external communication module connected to the main processing board and the Ethernet frame processing unit, for address translation and data transfer between the internal network and the external communication network.
  • USB bus signal Ethernet adapter unit in the home gateway device, various computer buses can be used to adapt to the Ethernet, for example, using a PCI bus, an IDE bus, etc., since the USB bus has a plug and play, a transmission rate. High, low resource consumption, more than one hundred ports, etc., has become a general-purpose computer bus, so the USB bus is the preferred computer bus solution of the present invention.
  • the specific home gateway device is shown in the following embodiment.
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of a home gateway device according to the present invention, including a main processing board 1, a USB signal Ethernet adaptation unit 2, an external communication module 3, an Ethernet frame processing unit 4, and a PLC modulation solution. Adjust unit 5.
  • the main processing board 1 has a USB interface for generating information processing and control signals, and is connected to other modules in the home gateway device through the USB bus.
  • the USB signal Ethernet adapter unit 2 is connected to the USB interface of the main processing board 1 for signal conversion between the USB signal and the Ethernet signal; for all information appliances in the home, the host device is the master computer, and the home interior All information appliances are host devices based on the USB bus-based computer peripherals. Therefore, the communication between the internal equipment and the main processing board is finally converted into USB-based communication, which facilitates the unified communication and management of the internal networking equipment, and also functions as a separation between the home intranet and the external network.
  • the external communication module 3 is connected to the Ethernet frame processing unit 4 and the main processing board 1 for address translation and data transfer between the internal network and the external communication network.
  • the external communication module 3 can be inserted
  • the card design, the external communication module and the main processing board are connected by a computer bus (PCI, PCI-E, or USB).
  • PCI computer bus
  • PCI-E computer bus
  • the communication between the host device and the external communication network is based on the IP protocol.
  • the physical layer access technology can be implemented in a variety of ways, including: wireless (such as HSDPA, WiMAX, etc.), five-wire mode, fiber-optic mode, cable TV coaxial cable mode, DSL mode, PLC mode based on power supply lines.
  • the external communication module adopts a plug-in design to improve the modularity of the home gateway, improve the maintainability of the system, and facilitate the upgrade.
  • the internal interface unit only includes the PLC modem unit 5, and is connected to the Ethernet frame processing unit 4 for modulating and demodulating the signal multiplexed with the data line and the power line; Power lines throughout every corner, using power lines to transmit data, are extremely convenient to use, as long as they are available in any room where there is a power outlet.
  • the PLC modem unit can realize modulation and demodulation operations of signals taken by data lines and power lines in the power line.
  • the Ethernet frame processing unit 4 is connected to the USB signal Ethernet adaptation unit 2, the external communication module 3, and the PLC modem unit 5, and can forward the received Ethernet frame according to a preset policy, corresponding to the three FIG. 2 is a schematic diagram of ports of an Ethernet frame processing unit of the home gateway device of the present invention.
  • Three ports are provided in the Ethernet frame processing unit 4, including a first port connected to the external communication module 3 for transmitting an Ethernet signal to the external communication network through the external communication module 3; and an Ethernet signal adaptation unit with the USB signal 2 connected second port 4b for transmitting Ethernet signal via USB package; third port 4 c connected to PLC modem unit 5 for transmitting Ethernet signal between internal networking device and main processing board .
  • all information appliances that need to communicate with the host device only encapsulate the USB bus frame in their Ethernet frames.
  • the Ethernet frame sent by the appliance only needs to be sent to the main processing board of the host device.
  • All information appliances do not support the IP protocol, and Ethernet frames sent by these information appliances cannot be sent to the external communication network.
  • Ethernet frames sent by all Internet-capable computers cannot be sent to the host device's main processing board module and can only be sent to the external communication module.
  • Ethernet frame processing strategy is as follows: 1) The destination address of the Ethernet frame sent by the information appliance is only one, that is, the MAC address of the USB signal Ethernet adaptation unit 2 to which the second port 4b of the Ethernet frame processing unit 4 is connected.
  • the USB signal Ethernet adapter unit 2 is connected to the main processing board 1 via a USB bus.
  • the source address of the Ethernet frame received by the information appliance is only unique, that is, the MAC address of the USB signal Ethernet adapter unit 1 to which the second port 4b of the Ethernet frame processing unit 4 is connected. If the MAC address of the Ethernet frame that is heard is not the MAC address of the Ethernet Adaptation Unit of the USB signal, the Ethernet frame shall be discarded even if the destination address is itself.
  • Ethernet frame processing unit its frame processing strategy is as follows:
  • the Ethernet frame processing unit reads the data format of the data content encapsulated by the Ethernet frame (the cartridge is called "package format"). If the encapsulation format of an Ethernet frame is a USB bus frame, the Ethernet frame can only be forwarded to the second port 4b. If the encapsulation format of an Ethernet frame is an IP packet, the Ethernet frame can only be forwarded to the first port 4a.
  • the external communication module 3 is connected to the main processing board through a computer bus. As shown in FIG. 3, it is a schematic structural diagram of an external communication module of the home gateway device of the present invention.
  • the external communication module 3 specifically includes: a PCI bus Ethernet adapter unit 33. Connected to the main processing board via a PCI bus for signal conversion between a PCI signal and an Ethernet signal; an external communication Ethernet frame processing unit 3 2 is connected to the PC I bus Ethernet adapter unit, The received Ethernet frame is forwarded according to the preset port control forwarding policy; the external communication adapting unit 31 is connected to the external communication Ethernet frame processing unit for communicating with the external communication network.
  • the external communication adaptation unit performs address conversion configuration, that is, the public IP address and the public port are associated with the private IP address and the dedicated port.
  • the internal network can be identified through the public port, and the conversion of the unique IP address of the public network and the private IP address of the internal network can be completed.
  • the packet of the external communication network passes through the external communication adapting unit, it parses out the information of the transport layer port of the packet, thereby converting the destination IP address into the IP address of the intranet host device or a certain Internet computer through the lookup table, and also The public port can be converted to a dedicated port.
  • the external communication adaptation unit When the packet of the intranet passes through the external communication adaptation unit, it will also check the above correspondence table to convert the intranet private IP address and the dedicated port into a public IP address and a public port.
  • the external communication adaptation unit learns the packet information entered from the fourth port, learns the source MAC address and the source IP address in the packet, and stores the correspondence of the information in a corresponding IP/MAC table. .
  • the packet of the external communication network passes through the external communication adaptation unit, it first finds the private IP address of the intranet through the above NAT conversion, and then converts the destination MAC address of the packet to correspond to this by checking the correspondence table of the IP/MAC.
  • the MAC address of the device of the network IP When the incoming packet of the intranet passes through the external communication adaptation unit, it converts the source MAC address of the packet into the MAC address of the external communication adaptation unit.
  • the external communication adaptation unit can correctly forward the intranet and the outer network packet.
  • the external communication Ethernet frame processing unit 32 has three ports: a fourth port 3a, a fifth port 3b, and a sixth port 3c.
  • the fourth port 3a is connected to the external communication adapting unit 31 for transmitting an Ethernet signal through the external communication adapting unit;
  • the fifth port 3b is connected to the PCI bus Ethernet adapting unit for transmitting the Ethernet packaged via the PCI package
  • the sixth port 3c is connected to the Ethernet frame processing unit and is connected to the sixth port of the Ethernet frame processing unit for transmitting an Ethernet signal between the external communication network and the personal computer.
  • the external communication Ethernet frame processing unit stores a correspondence table of the MAC address and the port, and the correspondence table is empty, and the self-learning records the frames from the ports.
  • Source MAC address and corresponds to the port.
  • the host processing board can automatically obtain an IP address or manually configure an IP address.
  • the fifth port 3b can learn the MAC address of the main processing board through learning.
  • the external communication processing module will record the MAC address of the main processing board, and fill in the correspondence table between the MAC address and the fifth port 3b.
  • External communication Ethernet frame processing unit when a packet sent from the Internet computer enters from the sixth port 3c
  • the correspondence between the MAC address of the computer and the sixth port 3c will be recorded and filled in the correspondence table.
  • the sixth port 3c will remember the MAC addresses of each of the Internet computers, and fill in the correspondence between them and the sixth port 3c in the correspondence table.
  • the packet of the external communication network When the packet of the external communication network enters the "external communication Ethernet frame processing unit" via the “external communication adaptation unit", it records the correspondence between the source MAC address of the packet and the fourth port 3a, and fills in the corresponding relationship. In the table.
  • the correspondence table recorded by the external communication Ethernet frame processing unit is as follows:
  • the specific processing strategy of the external communication Ethernet frame processing unit 32 when performing frame processing includes: entering the frame of the external communication Ethernet frame processing processing module from the sixth port 3c, and the external communication Ethernet frame processing unit will directly modify the frame. It is forwarded from the fourth port 3a.
  • the external communication Ethernet frame processing unit From the fifth port 3b to the frame of the external communication Ethernet frame processing module, the external communication Ethernet frame processing unit will forward it directly from the fourth port 3a without any modification.
  • the external communication Ethernet frame processing unit From the fourth port 3a to the frame of the external communication Ethernet frame processing unit, the external communication Ethernet frame processing unit will determine: 1. If the destination address of the frame is the MAC address of the computer, it will be forwarded directly from the sixth port 3c. . 2. If the destination address of the frame is the primary 'processing board MAC address, it will be forwarded directly from the fifth port 3b.
  • the frame processing strategy of the external communication Ethernet frame processing unit includes:
  • the communication connection selection adaptation unit should know which access method is currently used by the connected Internet computer, such as: Category 5 Internet access, or WLAN access. Therefore, the communication connection selection adaptation unit should correctly forward the frame received from the sixth port 3c to the interface unit currently connected to the Internet access computer, for example: Ethernet interface unit, or WLAN AP.
  • This embodiment provides a basic host device for home gateway control.
  • the host device plays a core control role in the entire digital home network system, and provides a universal computing resource and a communication gateway hub function for the digital home.
  • the host device is the network access point of the home gateway device.
  • the host device is the master computer, and all information appliances in the home are computer peripheral devices based on the USB bus of the host device.
  • the internal interface unit includes a PLC modem unit 5, an Ethernet interface 6, a WLAN AP7, and an optical access unit.
  • a communication connection selection configuration unit, a communication connection selection configuration unit, an Ethernet frame processing unit 4, a PLC modulation and demodulation unit 5, an Ethernet interface 6, and a WLAN AP7 are disposed between the Ethernet frame processing unit 4 and the internal interface unit.
  • the optical access unit 8 is configured to connect to a networked device in the internal network by using an Ethernet; the wireless local area network access point is configured to communicate with the networked device in the internal network by using a wireless manner; The optical access unit is configured to perform photoelectric conversion on the optical signal to obtain an electrical signal for communication.
  • the communication connection selection configuration unit is used for automatic configuration and switching of the communication connection to coordinate data communication between the PLC modem unit 5, the Ethernet interface unit 6, the WLAN AP7, and the optical access unit 8 and the Ethernet frame processing unit 4.
  • an internal interface unit including a PLC modem unit 5 and an Ethernet interface 6 may be employed, wherein the Ethernet interface Unit 5 can be connected to a networked device in the internal network via Ethernet, and the communication connection selection configuration unit selects the two connection methods according to a preset priority parameter (PLC connection and Ethernet connection).
  • PLC connection and Ethernet connection a preset priority parameter
  • Ethernet interface 6 and WLAN AP7 can be used.
  • the communication connection selection configuration unit can select between two other connection modes (Ethernet connection and wireless connection), wherein WLAN AP7 is used to wirelessly connect with the internal network. The device communicates. If the fiber-optic access is set in the home, the optical access unit 8 can be added as one of the alternative connection methods.
  • the system consisting of the home gateway device and the information home appliance in the internal home network provides various internal network connection modes for various information home appliances, and can be appropriately selected for Ethernet, PLC power carrier, wireless mode, and optical access mode.
  • Dynamically establish communication connections between internal devices and external networks For example: For a laptop, under normal circumstances, the data can be transmitted using the power line. However, if the notebook is battery-powered, data cannot be obtained from the power line. In this case, the data can be obtained through the wireless LAN access point. You can also access the Ethernet interface unit to obtain data through an ordinary network cable.
  • the communication connection selection configuration unit can automatically identify the connection communication mode available for each device and can be configured according to the priority setting.
  • the connection mode changes plug operation, power interruption
  • the host can automatically switch to other available connections and perform automatic configuration.
  • the host of the home gateway device can also implement the forced switching of the connection mode, that is, the low priority connection mode is forced.
  • the priority parameters are usually preset, which can be set by the manufacturer at the factory, or can be set by the user.
  • the priority of various connection methods can be determined according to the layout situation in the home.
  • the configuration of these priorities Both are stored in the selection profile and are retrieved by the connection selection unit. For example: In the automatic state, the twisted pair has the highest priority, the PLC is the second, and finally the WLAN, and in the forced transition state, the control mode signal is selected according to the control word.
  • FIG. 5 is a schematic structural diagram of a third embodiment of a home gateway device
  • a USB signal logic signal adaptation unit 9 is added to the first embodiment, and the USB signal logic signal adaptation unit 9 and the main processing board 1 are added. It is connected to the PLC modem unit 5 for converting the USB signal into a serial logic control signal.
  • the USB signal logic signal adaptation unit converts the USB control signal sent by the main processing board into a serial logic control signal, and is modulated by the PLC modem unit 5 to control the home appliance through the power line.
  • This embodiment is a synthesis of the first three embodiments.
  • FIG. 6 it is a schematic structural diagram of Embodiment 4 of the home gateway device of the present invention.
  • the USB is added to the second embodiment.
  • a signal logic signal adapting unit 9 the USB signal logic signal adapting unit 9 is connected to the main processing board 1 and the PLC modem unit 5, for converting the USB signal into serial logic control signal.
  • FIG. 7 is a schematic diagram of an application system according to Embodiment 4 of the present invention.
  • Networked devices 10 information appliances and computers
  • the home gateway device can be connected to the home gateway device via PLC, Ethernet, wireless and/or optical.
  • the networked device 10 when using PLC mode communication, the networked device 10 needs to modulate or demodulate the composite signal of the power line and the data line through the PLC modem 11, and then enter the power line, and the filtering and carrier operation of the PLC signal are performed by The PLC modem unit 5 in the internal interface unit is completed.
  • the external power network and the home PLC signal isolator 12 are disposed in the power line to complete the isolation of the low frequency current from the high frequency PLC signal to prevent the high frequency PLC signal from being output to the external network, and also to prevent the external high frequency PLC signal from entering. Home network.

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  • Computer Networks & Wireless Communication (AREA)
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  • Data Exchanges In Wide-Area Networks (AREA)

Description

家庭网关设备 技术领域
本发明涉及一种家庭网关设备, 尤其是一种通过区分外部或内部的接入 信号来实现上网通道和信息家电控制通道的分离的家庭网关设备。 背景技术
随着信息时代的来临以及网络的普及, 家庭的智能化和网络化逐渐成为 了现实, 现在已经出现了各种关于智能家庭网络的研究, 这些研究大多是基 于现有的计算机网络技术, 将家庭内的各种家电和设备联网, 再通过网络为 人们提供各种丰富、 多样化、 个性化、 方便、 舒适、 安全和高效的服务。 家 庭的内部信息与外部信息的交换是研究中的一个重要课题, 即利用越来越发 达的网络使用户通过外部设备对家庭内部设备进行管理和控制, 而这种管理 和控制需要一个理想的家庭网关。
家庭网关是作为外部接入网络连接到家庭内部, 以及将家庭内部网络连 接到外部的一种物理接口, 同时也是一种使住宅用户可以获得各种家庭服务 (包括现有的服务和未来可能出现的服务) 的平台, 它可以从外部网络接收 通讯信号, 通过家庭网络传递信号给某个消费设备。 家庭网关的应用不仅仅 是高速 Internet的接入, 未来的宽带接入进入家庭后, 将会带来更多的服务 内容, 不仅是 Internet的接入, 还有混合视频和音频信息流的可视电话, 以 及其它交互形式的娱乐服务, 如网络游戏等。 家庭网关将执行智能化的路由 算法, 把这些信息流(数据)分配给各种电话、 智能电器、 数字电视和音响 等设备。 例如, 高级的家庭网关可以使用呼叫者 ID信息来发送电话呼叫给家 庭内某个电话, 儿童的电话只能送到他们的房间, 或晚上 10点以后的电话呼 叫 (不包括紧急电话)只能送到远离卧室的地方。
现有的家庭网关通常兼具电脑上网和控制家庭内部智能家电的能力, 但 仍具有以下几个缺点: 首先, 用户通过外部通信网络对家庭内部智能家电进 行控制时, 通常采用的是针对于家庭内部的具体设备进行直接的控制, 这种 方式对于家庭内部外设较多的网络就增加了操作的复杂性和成本; 其次, 电 脑上网和家庭内部智能家电在进入家庭网关的时候无法实现信息的有效隔 离, 因此具有相当的安全隐患, 外部的非法用户可能利用互联网控制家庭内 部智能家电或者进行破坏性的操作, 从而给家庭用户带来物质和精神上的损 失; 最后, 当内部智能家电的信号进入家庭网关的时候, 家庭网关可能会因 为无法有效的区分出上网信号和控制信号, 而会导致上网中断或者控制信息 出错。 发明内容
本发明的目的是针对于现有的家庭网关的诸种缺陷, 提出一种家庭网关 设备, 能够降低控制内部联网设备的复杂度, 保证家庭内部网络的安全性, 防止外部非法用户的访问和控制,并且能够对上网信号和控制信号进行区分, 以避免可能导致的上网中断或控制信息出错。
为实现上述目的, 本发明提供了一种家庭网关设备, 包括
主处理板, 用于产生信息处理及控制的信号;
计算机总线信号以太网适配单元, 与所述主处理板连接, 用于在计算机 总线信号和以太网信号间进行信号转换;
以太网帧处理单元, 与所述计算机总线信号以太网适配单元连接, 用于 根据预设的策略对接收到的以太网帧进行转发;
内部接口单元, 与所述以太网帧处理单元连接, 用于连接内部网络中的 家电设备;
外部通信模块, 与所述主处理板和以太网帧处理单元连接, 用于对内部 网絡与外部通信网之间的地址转换和数据传送。
在上述技术方案中, 所述内部接口单元为电力线通信调制解调单元、 以 太网接口单元和无线局域网接入点之一或任意组合, 所述电力线通信调制解 调单元用于对数据线与电力线复用的信号进行调制和解调操作; 所述以太网 接口单元用于通过以太网连接内部网络中的信息家电设备; 所述无线局域网 接入点用于提供无线方式的通信连接。
所述计算机总线信号以太网适配单元为 USB信号以太网适配单元或 PCI 总线以太网适配单元; 所述 USB信号以太网适配单元用于在 USB信号和以太 网信号间进行信号转换; 所述 PCI总线以太网适配单元用于在 PCI信号和以 太网信号间进行信号进行转换。
还可以包括 USB信号逻辑信号适配单元, 与所述电力线通信调制解调单 元和主处理板连接, 用于在 USB信号和串行的逻辑信号间进行转换。
其中, 所述以太网帧处理单元具有:
与所述外部通信模块连接的第一端口, 用于通过所述外部通信模块向外 部通信网传输以太网信号;
与所述 USB信号以太网适配单元连接的第二端口, 用于传输经过 USB封 装的以太网信号;
与所述电力线通信调制解调单元连接的第三端口, 用于传输内部联网设 备与所述主处理板之间的以太网信号。
所述以太网帧处理单元通过预设策略对接收到的以太网帧进行转发帧处 理, 其中策略如下:
1 )对于从第一端口接收到的以太网帧, 只能转发给第三端口。 不能转发 给第二端口。
2 )对于从第二端口接收到的以太网帧, 只能转发给第三端口。 不能转发 给第一端口。
3 )对于从第三端口接收到的以太网帧, 以太网帧处理单元将读取以太网 帧所封装的数据内容的数据格式(简称 "封装格式" ) 。 若一个以太网帧的 封装格式为 USB总线帧, 则该以太网帧只能转发给第二端口。 若一个以太网 帧的封装格式为 IP分组, 则该以太网帧只能转发给第一端口。
其中, 所述外部通信模块包括:
PCI总线以太网适配单元, 经 PCI总线与所述主处理板连接, 用于在 PCI 信号和以太网信号间进行信号转换;
外部通信以太网帧处理单元, 与所述 PCI总线以太网适配单元连接, 用 于根据预设的端口控制转发策略对接收到的以太网帧进行转发;
外部通信适配单元, 与所述外部通信以太网帧处理单元连接, 用于与外 部通信网进行通信。
所述外部通信以太网帧处理单元包括: 与所述外部通信适配单元连接的第四端口, 用于通过所述外部通信适配 单元传输以太网信号;
与所述 PCI总线以太网适配单元连接的第五端口, 用于传输经过 PCI封 装的以太网信号;
与所述以太网帧处理单元连接的第六端口, 用于传输外部通信网与个人 计算机之间的以太网信号。
在外部通信网与家庭内部网络通信之前, 需要进行 NAT转换, 即外部通 信适配单元作地址转换的配置, 即把公用 IP地址和公用端口与专用 IP地址 和专用端口做一张对应关系表。 这样就可以通过公用端口识别出内网唯—— 台设备, 完成公网唯一 IP地址和内网专用 IP地址的转换。
当外部通信网的包经过外部通信适配单元时, 它解析出包的传输层端口 的信息,从而通过查表将目的 IP地址转换为内网主机设备或者某一上网电脑 的 IP地址, 同时也可以将公用端口转换为专用端口。
当内网的包经过外部通信适配单元时, 它也将查上述对应表把内网专用 IP地址和专用端口转换为公用 IP地址和公用端口。
除了要进行 AT地址转换以外, 还需要进行 MAC地址转换:
外部通信适配单元通过解析从第四端口进入的包信息, 会把包中的源 MAC地址、源 IP地址都学习到,然后将这些信息的对应关系存储到一张 IP/MAC 的对应表中。
当外部通信网的包经过外部通信适配单元时, 它先通过上述 NAT转换找 到内网的专用 IP地址, 再通过查 IP/MAC的对应表, 把包的目的 MAC地址转 换为对应于此内网 IP的设备 MAC地址。而当内网的来的包经过外部通信适配 单元时, 它把包的源 MAC地址转换为外部通信适配单元的 MAC地址。
通过上述 NAT地址转换和 MAC地址转换, 外部通信适配单元就能实现内 网和外网包的正确转发。
对于外部通信以太网帧处理单元, 其帧处理策略如下:
从第六端口进入外部通信以太网帧处理处理模块的帧, 外部通信以太网 帧处理单元将不作任何修改, 直接将其从第四端口转发出去。
从第五端口进入外部通信以太网帧处理处理模块的帧, 外部通信以太网 帧处理单元将不作任何修改, 直接将其从第四端口转发出去。
从第四端口进入外部通信以太网帧处理单元的帧, 外部通信以太网帧处 理单元将作判别: 1、 若帧的目的地址是电脑的 MAC地址, 它将直接从第六端 口转发出去。 2、 若帧的目的地址是主处理板 MAC地址, 它将直接从第五端口 转发出去。
如果有多台电脑同时上网, 外部通信以太网帧处理单元的帧处理策略如 下:
从第四端口进入外部通信以太网帧处理单元的帧, 只要目的地址是电脑 的 MAC地址, 都会从第六端口转发出去, 进入通信连接选择适配单元。
基于上述的技术方案, 本发明具有以下优点:
1、 本发明家庭网关设备的集中式控制能够降低对信息家电智能化的 要求, 从而使控制更加容易, 而且也减低了家电智能化的配置成本。
2、 本发明的家庭网关设备利用预设的帧处理策略和端口控制转发策 略对上行和下行的以太网信号进行控制, 实现了用于电脑上网的以太网信 号和信息家电设备的以太网信号的分离, 从而避免了外部不安全因素的威 胁。
下面通过附图和实施例, 对本发明的技术方案做进一步的详细描述。 附图说明
图 1为本发明家庭网关设备的实施例一的结构示意图。
图 2为本发明家庭网关设备的以太网帧处理单元的端口示意图。
图 3为本发明家庭网关设备的外部通信模块的结构示意图。
图 4为本发明家庭网关设备的实施例二的结构示意图。
图 5为本发明家庭网关设备的实施例三的结构示意图。
图 6为本发明家庭网关设备的实施例四的结构示意图。
图 7为本发明实施例四的应用系统示意图。 具体实施方式
本发明的家庭网关设备利用预设的帧处理策略和端口控制转发策略 对上行和下行的以太网信号进行控制, 实现了用于电脑上网的以太网信号 和信息家电设备的以太网信号的分离, 使内部网络中的信息家电设备的操 作信号能够顺利地进入主处理板, 上网信号直接与外部通信网络连接, 两 种信号之间互相不会影响。
家庭网关设备的基本组成包括: 主处理板, 用于产生信息处理及控制的 信号; 计算机总线信号以太网适配单元, 与主处理板连接, 用于在计算机总 线信号和以太网信号间进行信号转换; 以太网帧处理单元, 与计算机总线信 号以太网适配单元连接,用于根据预设的策略对接收到的以太网帧进行转发; 内部接口单元, 与以太网帧处理单元连接, 用于连接内部网络中的家电设备; 外部通信模块, 与主处理板和以太网帧处理单元连接, 用于对内部网絡与外 部通信网之间的地址转换和数据传送。
在家庭网关设备中的计算机总线信号以太网适配单元中, 可以釆用各种 计算机总线与以太网进行适配, 例如采用 PCI总线、 IDE总线等, 由于 USB 总线具有即插即用、 传输速率高、 占用资源小, 可接一百多个端口等特点, 因此已经成为通用的计算机总线, 因此 USB总线作为本发明优选的计算机总 线方案。 具体的家庭网关设备见下面的实施例。
实施例一
如图 1所示, 为本发明家庭网关设备的实施例一的结构示意图, 包括主 处理板 1、 USB信号以太网适配单元 2、 外部通信模块 3、 以太网帧处理单元 4、 PLC调制解调单元 5。 其中主处理板 1具有 USB接口, 用于产生信息处理 及控制的信号, 通过 USB总线与家庭网关设备中的其它模块连接。 USB信号 以太网适配单元 2 , 与主处理板 1的 USB接口连接, 用于在 USB信号和以太 网信号间进行信号转换; 对于家庭内部的所有信息家电, 主机设备是主控计 算机, 家庭内部的所有信息家电都是主机设备基于 USB总线的计算机外部设 备。 因此, 家庭内部的设备与主处理板间的通信最终都转换为基于 USB的通 信, 这样便于内部联网设备的统一通信及管理, 也起到了家庭内网和外网隔 离的作用。
外部通信模块 3与以太网帧处理单元 4和主处理板 1连接, 用于对内部 网络与外部通信网之间的地址转换和数据传送。 外部通信模块 3可以采用插 卡式设计, 外部通信模块与主处理板之间通过计算机总线(PCI、 PCI- E、 或 USB )连接。 主机设备与外部通信网的通信基于 IP协议。 物理层接入技术可 采用多种方式, 包括: 无线方式(如 HSDPA、 WiMAX等) 、 五类线方式、 光纤 方式、 有线电视同轴电缆方式、 DSL方式、 基于供电线路的 PLC方式等。 外 部通信模块采用插卡式设计旨在提高家庭网关的模块化程度, 提高系统的可 维护性、 便于升级改造。 当家庭网络要建立或变动与外部通信网络的物理层 接入方式时,通过插 /拔主机设备中相应的通信板卡即可满足所需的硬件配置 要求。 在本实施例中, 内部接口单元只包括 PLC调制解调单元 5 , 与以太网 帧处理单元 4连接,用于对数据线与电力线复用的信号进行调制和解调操作; 由于一般家庭都有遍布各个角落的电力线路, 利用电力线传输数据, 在使用 上具有极大的便捷性, 只要在房间任何有电源插座的地方都能使用。 PLC调 制解调单元能够实现电力线路中数据线与电力线服用的信号的调制和解调操 作。
以太网帧处理单元 4与 USB信号以太网适配单元 2、 外部通信模块 3和 PLC调制解调单元 5分别连接, 可以根据预设的策略对接收到的以太网帧进 行转发, 对应于这三种连接方式, 参见图 2 , 为本发明家庭网关设备的以太 网帧处理单元的端口示意图。 在以太网帧处理单元 4 中设置有三个端口, 包 括与外部通信模块 3连接的第一端口 ½, 用于通过外部通信模块 3向外部通 信网传输以太网信号; 与 USB信号以太网适配单元 2连接的第二端口 4b, 用 于传输经过 USB封装的以太网信号; 与 PLC调制解调单元 5连接的第三端口 4 c , 用于传输内部联网设备与主处理板之间的以太网信号。
在本实施例中 , 所有需与主机设备通信的信息家电在其以太网帧中仅封 装 USB总线帧。 对于所有信息家电, 家电发出的以太网帧只需要发送给主机 设备的主处理板。 所有信息家电都不支持 IP协议, 这些信息家电发出的以太 网帧也无法发送到外部通信网。
所有需与外部通信网通信的电脑(PC和手持式电脑)在其发送的以太网 帧中仅封装 IP分組。所有具备上网能力的电脑发出的以太网帧都无法发送给 主机设备的主处理板模块, 只能发送给外部通信模块。
为了加强家庭内部联网的安全性, 以太网帧处理策略如下: 1 )信息家电发出的以太网帧的目的地址只有唯一的一个, 即以太网帧处 理单元 4的第二端口 4b所连接的 USB信号以太网适配单元 2的 MAC地址。 USB 信号以太网适配单元 2通过 USB总线连接主处理板 1。
2 )信息家电接收的以太网帧的源地址也只有唯一的一个, 即以太网帧处 理单元 4的第二端口 4b所连接的 USB信号以太网适配单元 1的 MAC地址。若 侦听到的以太网帧的 MAC源地址不是 USB信号的以太网适配单元的 MAC地址, 则即使目的地址是自身, 该以太网帧也应被丢弃。
具体对以太网帧处理单元来说, 其帧处理策略如下:
1 )对于从第一端口 4a接收到的以太网帧, 只能转发给第三端口 4c。 不 能转发给第二端口 4b。
2 )对于从第二端口 4b接收到的以太网帧, 只能转发给第三端口 4c。 不 能转发给第一端口 4a。
3 )对于从第三端口 4c接收到的以太网帧, 以太网帧处理单元将读取以 太网帧所封装的数据内容的数据格式(筒称 "封装格式" ) 。 若一个以太网 帧的封装格式为 USB总线帧, 则该以太网帧只能转发给第二端口 4b。 若一个 以太网帧的封装格式为 IP分组, 则该以太网帧只能转发给第一端口 4a。
这样通过以太网帧处理单元的帧处理策略, 实现了家庭内网和外网隔离 的信息隔离。
外部通信模块 3与主处理板之间通过计算机总线连接, 如图 3所示, 为 本发明家庭网关设备的外部通信模块的结构示意图, 外部通信模块 3具体包 括: PCI总线以太网适配单元 33, 经 PCI总线与所述主处理板连接, 用于在 PCI信号和以太网信号间进行信号转换; 外部通信以太网帧处理单元 32, 与 所述 PC I总线以太网适配单元连接, 用于根据预设的端口控制转发策略对接 收到的以太网帧进行转发; 外部通信适配单元 31 , 与所述外部通信以太网帧 处理单元连接, 用于与外部通信网进行通信。
在外部通信网与家庭内部网络通信之前, 需要进行 NAT转换, 即外部通 信适配单元作地址转换的配置, 即把公用 IP地址和公用端口与专用 IP地址 和专用端口做一张对应关系表。 这样就可以通过公用端口识别出内网唯—— 台设备, 完成公网唯一 IP地址和内网专用 IP地址的转换。 当外部通信网的包经过外部通信适配单元时, 它解析出包的传输层端口 的信息,从而通过查表将目的 IP地址转换为内网主机设备或者某一上网电脑 的 IP地址, 同时也可以将公用端口转换为专用端口。
当内网的包经过外部通信适配单元时, 它也将查上述对应表把内网专用 IP地址和专用端口转换为公用 IP地址和公用端口。
除了要进行 NAT地址转换以外, 还需要进行 MAC地址转换:
外部通信适配单元通过解析从第四端口进入的包信息, 会把包中的源 MAC地址、源 IP地址都学习到,然后将这些信息的对应关系存储到一张 IP/MAC 的对应表中。
当外部通信网的包经过外部通信适配单元时, 它先通过上述 NAT转换找 到内网的专用 IP地址, 再通过查 IP/MAC的对应表, 把包的目的 MAC地址转 换为对应于此内网 IP的设备 MAC地址。而当内网的来的包经过外部通信适配 单元时, 它把包的源 MAC地址转换为外部通信适配单元的 MAC地址。
通过上述 NAT地址转换和 MAC地址转换, 外部通信适配单元就能实现内 网和外网包的正确转发。
其中外部通信以太网帧处理单元 32具有三个端口: 第四端口 3a, 第五 端口 3b, 第六端口 3c。 第四端口 3a与外部通信适配单元 31连接, 用于通过 所述外部通信适配单元传输以太网信号;第五端口 3b与 PCI总线以太网适配 单元连接, 用于传输经过 PCI封装的以太网信号; 第六端口 3c与以太网帧处 理单元连接的第六端口, 用于传输外部通信网与个人计算机之间的以太网信 号。
在操作中, 家庭网关设备在上电之前, 外部通信以太网帧处理单元中存 储有 MAC地址与端口的对应表, 这个对应表是空的, 它将通过自学习记录从 各端口上来的帧的源 MAC地址, 并与端口对应。
例如: 根据上网方式的不同, 主机处理板可以自动获取 IP地址, 或者手 动配置 IP地址。 第五端口 3b通过学习可以获知主处理板 MAC地址。 外部通 信处理模块就将记录主处理板的 MAC地址,并将该 MAC地址与第五端口 3b的 对应关系填入对应表中。
当上网电脑发出的包从第六端口 3c进入时,外部通信以太网帧处理单元 将记录电脑的 MAC地址与第六端口 3c的对应关系, 并将其填入对应表中。 当 同时存在多台上网电脑时,第六端口 3c将会记住每一个上网电脑的 MAC地址, 并且将它们与第六端口 3c的对应关系填入对应表中。
当外部通信网的包经 "外部通信适配单元" 进入 "外部通信以太网帧处 理单元" 时, 它将记录下包的源 MAC地址与第四端口 3a的对应关系, 并将其 填入对应表中。
通过上述自学习过程, 外部通信以太网帧处理单元记录下的对应表如下 表所示:
源 MAC地址 端口号
主处理板模块的 MAC地址 3b
外部通信适配单元的 MAC地址 3a
上网电脑 1 的 MAC 3c
上网电脑 k 的 MAC 3c
外部通信以太网帧处理单元 32在进行帧处理时的具体处理策略包括:从 第六端口 3c进入外部通信以太网帧处理处理模块的帧,外部通信以太网帧处 理单元将不作任何修改, 直接将其从第四端口 3a转发出去。
从第五端口 3b进入外部通信以太网帧处理处理模块的帧,外部通信以太 网帧处理单元将不作任何修改, 直接将其从第四端口 3a转发出去。
从第四端口 3a进入外部通信以太网帧处理单元的帧,外部通信以太网帧 处理单元将作判别: 1、 若帧的目的地址是电脑的 MAC地址, 它将直接从第六 端口 3c转发出去。 2、 若帧的目的地址是主 '处理板 MAC地址, 它将直接从第 五端口 3b转发出去。
如果有多台电脑都联入家庭网关设备并上网的情况下, 外部通信以太网 帧处理单元的帧处理策略包括:
从第四端口 3a进入外部通信以太网帧处理单元的帧,只要目的地址是电 脑的 MAC地址, 都会从第六端口 3c转发出去, 进入通信连接选择适配单元。
通信连接选择适配单元应掌握所接入的上网电脑当前是采用哪种接入方 式, 如: 五类线上网, 或采用 WLAN上网。 因此, 通信连接选择适配单元应把 从第六端口 3c收到的帧正确转发至上网电脑当前所接入的接口单元, 如: 以 太网接口单元, 或 WLAN AP。
本实施例提供了一台基本的用于家庭网关控制的主机设备, 主机设备在 整个数字家庭网络系统中起到核心控制的作用, 为数字家庭提供通用计算资 源和通信网关枢纽功能。 对于外部通信网, 主机设备是家庭网关设备的网络 接入点。 对于家庭内部的所有信息家电, 主机设备是主控计算机, 家庭内部 的所有信息家电都是主机设备基于 USB总线的计算机外部设备。
实施例二
如图 4所示, 为本发明家庭网关设备的实施例二的结构示意图, 与实施 例一不同的是, 内部接口单元包括 PLC调制解调单元 5、 以太网接口 6、 WLAN AP7和光接入单元 8 ,在以太网帧处理单元 4和内部接口单元之间设置有通信 连接选择配置单元, 通信连接选择配置单元与以太网帧处理单元 4和 PLC调 制解调单元 5、 以太网接口 6、 WLAN AP7 光接入单元 8连接, 所述以太网接 口单元用于通过以太网连接内部网络中的联网设备; 所述无线局域网接入点 用于通过无线方式与内部网络中的联网设备进行通信; 所述光接入单元用于 将光信号进行光电变换, 以获得电信号进行通信。 通信连接选择配置单元用 于通信连接的自动配置和切换, 以协调 PLC调制解调单元 5、 以太网接口单 元 6、 WLAN AP7和光接入单元 8与以太网帧处理单元 4的数据通信。
如果内部网络连接方式比较多样, 例如具有以太网接口的联网设备, 或 者具有无线接口的联网设备, 则可以采用包括有 PLC调制解调单元 5和以太 网接口 6的内部接口单元, 其中以太网接口单元 5可以通过以太网方式连接 内部网络中的联网设备, 通信连接选择配置单元则根据预先设定的优先级参 数对这两种连接方式进行选择(PLC连接和以太网连接) 。 另外还可以采用 以太网接口 6和 WLAN AP7, 通信连接选择配置单元可以在另两种连接方式上 进行选择 (以太网连接和无线连接) , 其中 WLAN AP7用于通过无线方式与内 部网络中的联网设备进行通信。 如果家庭内部设置了光纤方式的接入, 则可 以加入光接入单元 8 , 也作为可选择的连接方式之一。
家庭网关设备与内部的家庭网络中的信息家电设备构成的系统, 为各种 信息家电设备提供了多样的内部网络连接方式, 可以对以太网、 PLC电力载 波、 无线方式、 光接入方式选择适配, 并且可以根据内部联网设备的情况自 动的建立内部设备与外部网络的通信连接。 例如: 对于笔记本电脑来说, 在 正常的情况下, 可以利用输电线传输数据, 但如果笔记本采用电池供电的方 式, 就无法从输电线中获取数据, 这时可以通过无线局域网接入点获取数据, 也可以通过普通的网线接入以太网接口单元获取数据。
通信连接选择配置单元能够自动识别每个设备可用连接通信方式, 并且 可按照优先级设置进行配置。 当连接方式变化时 (插拔操作、 供电中断) , 主机可自动切换到其它可用连接, 并且进行自动配置。 还以笔记本为例, 当 笔记本的电源断电时, 可以自动切换到从 WLAN AP7获取数据的方式。 此外, 家庭网关设备的主机也可实现连接方式的强制倒换, 即强制采用低优先级连 接方式。
优先级参数通常是预先设定好的, 可以是厂家在出厂时设定好的, 也可 以由用户自行设置,根据家庭内的布置状况可以确定各种连接方式的优先级, 这些优先级的配置都存储在选择配置文件中, 由连接选择单元进行调取。 例 如: 自动状态下双绞线优先级最高, PLC次之, 最后为 WLAN, 而在强制转换 状态时, 根据控制字来选择控制方式信号。
实施例三
如图 5所示, 为家庭网关设备的实施例三的结构示意图, 在实施例一的 基础上增加了 USB信号逻辑信号适配单元 9 ,该 USB信号逻辑信号适配单元 9 与主处理板 1和 PLC调制解调单元 5连接, 用于将 USB信号转换为串行的逻 辑控制信号。 除了各种信息家电外, 还有一些简单的只具有一些逻辑功能的 电器, 如电灯、 电控的水龙头等, 对于这些电器, 只需要发出一些开关的逻 辑控制命令, 不需要复杂的信息交互。 USB信号逻辑信号适配单元将主处理 板发出的 USB控制信号, 转换为串行的逻辑控制信号, 并通过 PLC调制解调 单元 5调制后通过电力线对家电实现控制。
实施例四
本实施例为前三个实施例的综合, 如图 6所示, 为本发明家庭网关设备 的实施例四的结构示意图, 其作为家庭应用的优选方案, 在实施例二的基础 上加入了 USB信号逻辑信号适配单元 9 , 该 USB信号逻辑信号适配单元 9与 主处理板 1和 PLC调制解调单元 5连接, 用于将 USB信号转换为串行的逻辑 控制信号。
由本实施例和内部家庭网络以及外部通信网构成的应用系统如图 7 所 示, 图 7为本发明实施例四的应用系统示意图。 家庭内部网络的联网设备 10 (信息家电以及电脑)都可以通过 PLC方式、 以太网方式、 无线方式和 /或光 纤方式接入家庭网关设备。 对于具体的联网设备, 在采用 PLC方式通信的时 候, 联网设备 10需要通过 PLC调制解调器 11对电力线和数据线复合的信号 进行调制或解调, 再进入电力线路, PLC信号的滤波和载波的工作由内部接 口单元中的 PLC调制解调单元 5完成。 另外, 在外部电力网络和家庭 PLC信 号隔离器 12设置于电力线路中, 完成低频电流与高频 PLC信号的隔离, 以防 止高频 PLC信号输出到外部网络, 也防止外部的高频 PLC信号进入家庭内部 网络。
最后应当说明的是:以上实施例仅用以说明本发明的技术方案而非对 其限制; 尽管参照较佳实施例对本发明进行了详细的说明, 所属领域的普 通技术人员应当理解: 依然可以对本发明的具体实施方式进行修改或者对 部分技术特征进行等同替换; 而不脱离本发明技术方案的精神, 其均应涵 盖在本发明请求保护的技术方案范围当中。

Claims

权 利 要 求 书
1、 一种家庭网关设备, 其特征在于, 包括:
主处理板, 用于产生信息处理及控制的信号;
计算机总线信号以太网适配单元, 与所述主处理板连接, 用于在计算机 总线信号和以太网信号间进行信号转换;
以太网帧处理单元, 与所述计算机总线信号以太网适配单元连接, 用于 根据预设的帧处理策略对接收到的以太网帧进行转发;
内部接口单元, 与所述以太网帧处理单元连接, 用于连接内部网络中的 家电设备;
外部通信模块, 与所述主处理板和以太网帧处理单元连接, 用于对内部 网络与外部通信网之间的地址转换和数据传送。
2、 根据权利要求 1所述的家庭网关设备, 其特征在于, 所述内部接口单 元为电力线通信调制解调单元、 以太网接口单元和无线局域网接入点之一或 任意组合, 所述电力线通信调制解调单元用于对电力载波信号与数据信号进 行调制和解调操作; 所述以太网接口单元用于通过以太网连接内部网络中的 联网设备; 所述无线局域网接入点用于提供无线方式的通信连接。
3、 根据权利要求 1所述的家庭网关设备, 其特征在于, 所述计算机总线 信号以太网适配单元为 USB信号以太网适配单元或 PCI总线以太网适配单元; 所述 USB信号以太网适配单元用于在 USB信号和以太网信号间进行信号转换; 所述 PCI总线以太网适配单元用于在 PCI信号和以太网信号间进行信号进行 转换。
4、 根据权利要求 1 所述的家庭网关设备, 其特征在于, 所述计算机总 线信号以太网适配单元为 USB信号以太网适配单元, 用于在 USB信号和以太 网信号间进行信号转换;
所述内部接口单元为电力线通信调制解调单元, 用于对数据线与电力线 复用的信号进行调制和解调操作。
5、 根据权利要求 4所述的家庭网关设备, 其特征在于, 还包括:
USB信号迓辑信号适配单元, 与所述电力线通信调制解调单元和主处理 板连接, 用于在 USB信号和串行的逻辑信号间进行转换。
6、 根据权利要求 4所述的家庭网关设备, 其特征在于, 所述以太网帧处 理单元具有:
与所述外部通信模块连接的第一端口, 用于通过所述外部通信模块向外 部通信网传输以太网信号;
与所述 USB信号以太网适配单元连接的第二端口, 用于传输经过 USB封 装的以太网信号;
与所述电力线通信调制解调单元连接的第三端口, 用于传输内部联网设 备与所述主处理板之间的以太网信号。
7、 根据权利要求 2或 4或 5或 6所述的家庭网关设备, 其特征在于, 所 述以太网帧处理单元和内部接口单元之间还设有通信连接选择配置单元, 与 所述以太网帧处理单元和内部接口单元分别连接, 用于内部网络与外部通信 网络进行连接的自动配置和切换。
8、根据权利要求 7所述的家庭网关设备, 其特征在于所述外部通信模块 包括:
PCI总线以太网适配单元, 经 PCI总线与所述主处理板连接, 用于在 PCI 信号和以太网信号间进行信号转换;
外部通信以太网帧处理单元, 与所述 PCI总线以太网适配单元连接, 用 于根据预设的端口控制转发策略对接收到的以太网帧进行转发;
外部通信适配单元, 与所述外部通信以太网帧处理单元连接, 用于与外 部通信网进行通信。
9、 根据权利要求 8所述的家庭网关设备, 其特征在于, 所述外部通信以 太网帧处理单元包括:
与所述外部通信适配单元连接的第四端口, 用于通过所述外部通信适配 单元传输以太网信号;
与所述 PCI总线以太网适配单元连接的第五端口, 用于传输经过 PCI封 装的以太网信号;
与所述以太网帧处理单元连接的第六端口, 用于传输外部通信网与个人 计算机之间的以太网信号。
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CN101312422B (zh) 2007-05-25 2013-01-30 中国移动通信集团公司 一种基于总线方式的家庭网关子系统以及数字家庭系统
CN101222453B (zh) * 2008-01-22 2014-07-02 中兴通讯股份有限公司 一种家庭网关策略控制方法及系统
NZ594664A (en) * 2009-02-06 2012-12-21 Eandis Meter that selectively connects single-phase outputs to multi-phase inputs in response to a received control signal
US9021365B2 (en) * 2009-05-11 2015-04-28 At&T Intellectual Property I, Lp Apparatus and method for distributing media content
CN101997768B (zh) * 2009-08-21 2012-10-17 华为技术有限公司 一种上送地址解析协议报文的方法和装置
CN101895462B (zh) * 2010-01-28 2012-12-19 袁亚军 串行通信网关
CN101902375A (zh) * 2010-07-09 2010-12-01 广东工业大学 一种基于异构网络融合的嵌入式家庭网关综合服务平台
CN101883119A (zh) * 2010-07-09 2010-11-10 潘薇 利用“新型nat”实现路由网关设备防范arp病毒攻击的方法
CN102594735B (zh) * 2011-01-17 2015-09-16 中兴通讯股份有限公司 一种家庭网关及其实现多上行方式链路自动探查的方法
CN102957561B (zh) * 2011-08-31 2017-10-10 中兴通讯股份有限公司 一种支持多上行用户设备入网时自动识别的方法及装置
CN102291285A (zh) * 2011-09-15 2011-12-21 中兴通讯股份有限公司 Pfttm业务接入系统及方法
CN103023761B (zh) * 2011-09-22 2018-04-06 海尔集团公司 网关装置、智能物联网系统及该系统的混合接入方法
CN102448201B (zh) * 2011-09-27 2014-02-05 电子科技大学 一种基于光纤无线融合接入的家庭网关系统
CN102685824B (zh) * 2012-05-16 2015-04-29 华为技术有限公司 网络切换的方法、装置及系统
US9451655B1 (en) 2012-09-28 2016-09-20 Juniper Networks, Inc. Methods and apparatus for a wireless access point converter
CN103716915B (zh) * 2012-09-28 2017-02-15 海尔集团公司 一种物联网家电之间自动适配的方法
CN102902253B (zh) * 2012-10-09 2015-07-15 鸿富锦精密工业(深圳)有限公司 具有语音控制功能的智能开关及智能控制系统
KR101299959B1 (ko) * 2013-01-11 2013-08-26 주식회사 이도링크 전구형 ap를 이용한 전력선통신 네트워크장치
CN103533103A (zh) * 2013-10-31 2014-01-22 成都西加云杉科技有限公司 基于网络地址转换的通信方法和装置
US10069802B2 (en) * 2014-02-18 2018-09-04 Ciena Corporation Method for securely configuring customer premise equipment
CN104581893A (zh) * 2014-12-08 2015-04-29 上海斐讯数据通信技术有限公司 网络接入设备及其接入多种网络的切换方法
WO2020012559A1 (ja) * 2018-07-10 2020-01-16 Necディスプレイソリューションズ株式会社 端末装置プレゼンテーションシステム、端末装置、接続制御方法、およびプログラム
DE102019103896A1 (de) * 2018-12-06 2020-06-10 Siteco Gmbh Analysetool zur Auswertung von Bedarfs- und Aufzeichnungsdaten von Beleuchtungsanlagen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6434627B1 (en) 1999-03-15 2002-08-13 Cisco Technology, Inc. IP network for accomodating mobile users with incompatible network addressing
CN1459957A (zh) * 2002-05-18 2003-12-03 联想(北京)有限公司 数字家庭网络系统
CN1481128A (zh) * 2002-09-30 2004-03-10 联想(北京)有限公司 控制网关及其实现家庭网络控制子网中节点互通的方法
EP1441483A2 (en) 2003-01-21 2004-07-28 Samsung Electronics Co., Ltd. Gateway for supporting communications between network devices of different private networks
KR20050019647A (ko) * 2003-08-20 2005-03-03 주식회사 케이티 통합 인증 기능을 제공하는 홈 게이트웨이 장치 및 그통합 인증 방법
TWI250747B (en) * 2004-07-02 2006-03-01 Ind Tech Res Inst iSCSI home gateway

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11194987A (ja) * 1998-01-05 1999-07-21 Toshiba Corp 通信装置
CN1416632A (zh) * 2000-01-31 2003-05-07 爱普泰克微系统公司 宽带通讯访问装置
JP2002077271A (ja) * 2000-08-25 2002-03-15 Sharp Corp ネットワーク装置
JP2002077274A (ja) * 2000-08-31 2002-03-15 Toshiba Corp ホームゲートウェイ装置、アクセスサーバ装置及び通信方法
US7184427B1 (en) * 2000-11-28 2007-02-27 Genband Inc. System and method for communicating telecommunication information from a broadband network to a telecommunication network
WO2002076062A1 (en) * 2001-03-16 2002-09-26 Matsushita Electric Industrial Co., Ltd. Method and apparatus for setting up a firewall
US7587738B2 (en) * 2002-03-13 2009-09-08 Hoya Corporation Adapter device for image capturing device
US6930598B2 (en) * 2002-05-16 2005-08-16 Eugene S. Weiss Home gateway server appliance
CN2586306Y (zh) * 2002-09-09 2003-11-12 中国科学院软件研究所 家庭网关
JP2004112120A (ja) * 2002-09-13 2004-04-08 Aruze Corp 携帯用中継ハブ
KR100541942B1 (ko) * 2003-08-11 2006-01-10 삼성전자주식회사 홈네트워크의 홈디바이스원격관리장치 및 그 방법
US7509487B2 (en) * 2003-09-29 2009-03-24 Gemalto Inc. Secure networking using a resource-constrained device
US7340769B2 (en) 2005-01-07 2008-03-04 Cisco Technology, Inc. System and method for localizing data and devices
US7436783B2 (en) 2005-04-04 2008-10-14 Apple Inc. Method and apparatus for detecting a router that improperly responds to ARP requests
CN111481128B (zh) * 2018-07-25 2021-08-17 台州市黄岩涵贝婴童用品有限公司 一种旋转拖把套件及其使用方法
CN111459957A (zh) * 2020-03-27 2020-07-28 潍坊申海科技有限公司 作业管理机具管理系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6434627B1 (en) 1999-03-15 2002-08-13 Cisco Technology, Inc. IP network for accomodating mobile users with incompatible network addressing
CN1459957A (zh) * 2002-05-18 2003-12-03 联想(北京)有限公司 数字家庭网络系统
CN1481128A (zh) * 2002-09-30 2004-03-10 联想(北京)有限公司 控制网关及其实现家庭网络控制子网中节点互通的方法
EP1441483A2 (en) 2003-01-21 2004-07-28 Samsung Electronics Co., Ltd. Gateway for supporting communications between network devices of different private networks
KR20050019647A (ko) * 2003-08-20 2005-03-03 주식회사 케이티 통합 인증 기능을 제공하는 홈 게이트웨이 장치 및 그통합 인증 방법
TWI250747B (en) * 2004-07-02 2006-03-01 Ind Tech Res Inst iSCSI home gateway

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2015531A4

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EP2015531A4 (en) 2011-01-26
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US8036235B2 (en) 2011-10-11
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CN100438517C (zh) 2008-11-26

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