CN1180587C - Method for controlling gateway and realizationg of controlling intercommunication between nodes in sub network of household network - Google Patents
Method for controlling gateway and realizationg of controlling intercommunication between nodes in sub network of household network Download PDFInfo
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- CN1180587C CN1180587C CNB021441324A CN02144132A CN1180587C CN 1180587 C CN1180587 C CN 1180587C CN B021441324 A CNB021441324 A CN B021441324A CN 02144132 A CN02144132 A CN 02144132A CN 1180587 C CN1180587 C CN 1180587C
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Abstract
The present invention discloses a control gateway which is used for connecting a control subnetwork of a household network with an external network. The control gateway at least comprises an interface for an external network, an interface for a household control subnetwork, a core processing unit connected with the interfaces, and a peripheral processing circuit of the control gateway. The present invention has the essential scheme that the core processing unit further comprises an operation system and household control subnetwork (HACN) network communication module, an HACN service module, an internet service module and an application layer software module, wherein the operation system and household control subnetwork (HACN) network communication module is used for receiving and controlling a message; the HACN service module is used for completing safety certification and the storage, the interpretation and the conversion of description information; the internet service module is used for providing a protocol stack and connecting internets; the application layer software module is used for realizing the initialization configuration of nodes and the conversion of network protocols. The present invention simultaneously discloses a method for realizing the interconnection among nodes in a control subnetwork of a household network; the gateway and the method can nodes in a control subnetwork inter connected and intercommunicated, and the nodes can share resources.
Description
Technical field
The present invention relates to a kind of gateway device, be meant a kind of method that is applicable to the control gateway of home network and realizes controlling in the home network node intercommunication on the subnet especially.
Background of invention
Increasing electric equipment has appearred in development and growth in the living standard along with information technology in the family.For intelligence interconnection, resource-sharing, the electric equipment of family couples together by various different modes, has formed home network.Home network (Home network) comprises four layers of implication specifically: 1. the information equipment in the family, communication apparatus, amusement equipment, household electrical appliance, automation equipment, guard monitor device etc. interconnect, resource-sharing, form home intelligence, digitalized network system; 2. by gateway and community, Internet connection, realize information exchange with family's external environment condition; 3. the network of the equipment of family and connection thereof should satisfy the primary demand of people's safety, convenience, comfortable, healthy and environmental protection, for people provide body and mind joyful experience; 4. embody the theory that people-oriented, be easy to use, safe and reliable, maintain easily, price is suitable, satisfies the characteristics of life at home.In home network, various electronic products and equipment, as television set, air-conditioning, microwave oven, illuminator, safety-protection system, use identical control standard to interconnect in the family, realize the function of networking, automation, this has just constituted the home automation Control Network (HACN) in the dwelling house scope, claims the control subnet again.
The digitized home network has been arranged, and people's demand is also improving gradually, and except online transmitting-receiving E-mail and browsing page, people also wish and can carry out Long-distance Control and management to information household appliances.Such as: when the user stayed out, this user wished to allow his video tape recorder record the TV programme of being liked down automatically; Wish in office, just to allow the microwave oven in his family start working such as: user again, so that can have tasty food after coming home from work.
In view of this, the applicant has proposed a kind of digital family network system in another patent application, as shown in Figure 1, this system mainly is made of gateway 11, an above backbone network equipment 12 and a plurality of control subnet equipment 13, this gateway 11 may further include two parts: link to each other by broadband interface between door gateway 110 and the control gateway 111, door gateway 110 and control gateway 111.Based on this system configuration as can be seen, this digital home network is made up of backbone network and two subnets of control subnet, wherein, be called backbone network by door gateway 110 and the formed network portion of connected housed device, backbone network is mainly used in the interconnection that realizes information equipment, communication apparatus, amusement equipment etc.; And being called the control subnet by control gateway 111 and the formed network portion of connected housed device, the control subnet master is used to realize the interconnection of equipment such as household electrical appliance, automation equipment, guard monitor device.The core concept of this digital home network is exactly: make housed device interconnection and interflow, resource-sharing on the home network.In this domestic network system, door gateway, control gateway and server can be referred to as asset management device, are used for network resource administration.In general, the equipment in the backbone network all has stronger storage, computing capability, and device storage, computing capability in the control subnet are very limited.Realize communicate by letter by the interconnection between door gateway and the control gateway between backbone network and the control subnet, control gateway is responsible for controlling subnet and is shone upon to the device description of backbone network, makes the equipment of backbone network in can the access control subnet.
In home control network, all household electrical appliances all are the equipment by Digital Control, are moving an Embedded operating system on it, interconnect by a control subnet between each electrical equipment.How to make these equipment add network easily, operate as normal, mutually cooperation, and can communicate by letter with the external world and become key issue in the family network management.In order to address these problems, need a management system to be loaded into the normal operation of guaranteeing whole network on these equipment and the network.
The characteristics of home network have determined traditional network management pattern can not be applicable to home network fully: at first, the management mode of legacy network be difficult to realize the electric equipment in the home network plug and play, need not the requirements such as automated communications between manual configuration and each electric equipment, therefore need seek new management method.Secondly, various home appliances are arranged in home network, the kind of device parameter is numerous and diverse, yet the status number of single equipment parameter is fewer comparatively speaking.Therefore design the set of parameter describing method, satisfy household electrical appliances state parameter numerous types, the characteristics that status number is few relatively.In addition, in family network management, the additional disposal ability of electric equipment is very limited, can not deposit very big management software, therefore separates with regard to the system that requires to realize management function.
At present, be the network of extensive existence based on the internet (INTERNET) of TCP/IP technology.Each node on the domestic automation system can not all possess the ICP/IP protocol concatenation ability for the restriction on the cost.Therefore, the key request that the control gateway of domestic automation system is proposed is to make can and to realize intercommunication based on changing the mechanism by one between the home automation control network of HACN agreement based on the network of ICP/IP protocol.
Home automation control network also has multiple transmission medium, for example: power line, less radio-frequency, twisted-pair feeder, infrared ray, coaxial cable, optical fiber or the like.For control gateway is connected with the control subnet, control gateway should possess the access capability of more than one medium of communication.
In the patent application of " based on the electrical installation of internet intelligent control center ", publication number is CN 2478177Y, once discloses a kind of electric apparatus control apparatus of the intelligent control center based on the internet.Be characterized on electrical equipment, using special-purpose network signal transmission chip (PS2000), make that the PC on the Internet can be via the protocol conversion control front end microcontroller or the image data of gateway.But there is some shortcomings:, need between front end microcontroller and electrical equipment, insert X.10 protocol converter 1) for control apparatus.2) by the manual compiling html page, and only provide the mode of controlling by the web browser software on the PC, only be suitable for mutual between people and the home appliance, can not satisfy external system the home appliance demand of control automatically.3) have only a kind of medium of communication of twisted-pair feeder between household electrical appliances and the gateway, can not satisfy the demand of the multiple media coexistence of domestic automation system.
Patent application at " device of the protocol Data Unit of the incompatible network that is used for transferring mutually ", publication number is CN1310906A, a kind of device of protocol Data Unit of the incompatible network that is used for transferring was mutually once disclosed, especially, propose a kind of group form of protocol Data Unit conversion, be used for the switching between local network and the communication network.Telecommunication terminal equipment comprises local fixed radio transmission/reception, can launch with mobile radio/radio system constitutes remote-operated structure.This device can be used for speech data and packet data transmission on the one hand generally, is to be used for the equipment remote-control that variant network type is used on the other hand generally.The group form that its problem is it is towards the telecom communication design, for example packet switching network, cordless telephone, wireless telephonic communication, and do not relate to INTERNET based on ICP/IP protocol.And this device does not have the initial configuration ability to the equipment on the home automation Control Network.
In the patent application of " home network server ", publication number is CN2482284Y, once disclosed a kind of equipment that is connected between household electrical appliance and internet, referred in particular to a kind of equipment that can between household electrical appliance and remote browser, carry out two-way control by the Internet.Its shortcoming is: 1) each electrical equipment all needs to be directly connected on the gateway (NET.NOW), and the number of devices that allows to connect is no more than the interface quantity that gateway provides; 2) each electrical equipment and gateway between need to exist interface A and interface B, cause needing in the family to lay too much cable; 3) only provide the mode of controlling by the web browser software on the PC, only be suitable for mutual between people and the home appliance, can not satisfy external system the home appliance demand of control automatically; 4) the EMIT technology of U.S. emWare company is adopted in protocol conversion, the embedded software that needs to buy special-purpose conversion chip or have copyright.
As seen, up to now, also be not suitable for the control gateway that home network control subnet uses.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of control gateway, makes it can support interconnection and interflow and resource-sharing between external network and control subnet and the node of control on the subnet.
Another object of the present invention is to provide a kind of control gateway of utilizing to realize the method that node initializing disposes on the control subnet in the home network, the node of control subnet can be interconnected, shared resource, also make the node of control on the subnet visit external network by control gateway.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of control gateway, be used to connect the control subnet and the external network of home network, at least comprise: with the interface of external network, with the interface of home automation control network and the core processing unit and the peripheral processes circuit thereof that are connected above-mentioned interface simultaneously, further comprise in this core processing unit:
Home automation control network (HACN) network communication device is used to realize the transmitting-receiving and the control of message;
The home automation control network service unit is used to finish the operation of safety certification, descriptor storage, explanation and conversion;
The Internet service device, the connection that is used to provide protocol stack and is responsible for the Internet;
The application layer process device is used to realize the conversion of the initial configuration and the procotol of node;
This application layer process device connects home automation control network service unit and Internet service device simultaneously, home automation control network service unit and the interconnection of home automation control network network communication device, this home automation control network network communication device connects home automation control network, and this Internet service device links to each other with external network.
Described network interface is wireless lan interfaces (WLAN), as 802.11a/b; Or be Ethernet interface, as 802.3Ethernet; Or be the Dial-up Network interface, as PSTN, PPP, xDSL, Cable Modem; Or be the mobile communication network interface, as GSM, GPRS, 3G, SMS, MMS.Described home automation control network interface is a power line medium interface or for the twisted-pair feeder medium interface or for the less radio-frequency medium interface or for the infrared ray medium interface.Comprise in the described peripheral processes circuit being used for storage code and memory of data that described memory is read-only memory or readable and writable memory or its combination that is used for storage code and data.
Described home automation control network service unit further comprises:
The device description converting unit is used for information translation with the object-oriented device databases and is the device descriptive information on the backbone network;
The object encapsulation unit is used to encapsulate a series of standard object, links to each other with the home automation control network network communication device with standard application DLL (dynamic link library), device description converting unit, object control language interpreter, object-oriented device databases simultaneously;
The standard application DLL (dynamic link library) is used to the API function of the standard that encapsulates, and also links to each other with application layer process device, device description converting unit and object-oriented device databases;
Object control language interpreter is used to analyze the implication of the control frame of being received, and analysis result is write in the object-oriented device databases, also links to each other with the home automation control network network communication device; And
The object-oriented device databases, the object-oriented device description of whole nodes that are used to video, and the state information of preserving each node.
A kind of method of utilizing above-mentioned control gateway to realize node intercommunication in the home network control subnet, this method may further comprise the steps:
A. when node device initially enters home automation control network, this node device checks that earlier whether self is through configuration, if, then enter step b, otherwise this node device is transported to control gateway and is put request message, after control gateway is received, distribute to legal HACN address of this node device, this node and control gateway connect;
B. control gateway is obtained the equipment and the information on services of this node according to the HACN address from the node device of current access, generates the object-oriented device descriptive information of control subnet, generates corresponding backbone network object-oriented device descriptive information simultaneously;
C. control gateway disposes interconnecting relation between each node according to the object-oriented device descriptive information of each node, and with this related information respectively on storage and control gateway and the relevant node device.
Wherein, the HACN address is combined by control subnet sign and node identification.
Whether be detect in this node database the in advance value of the expression configuration status variable of storage in node inspection self among the step a if having disposed.
This method further comprises: node device if do not receive response at the fixed time, is then retransmitted this request message after control gateway sends the configuring request message.
This method further comprises: node device is not received response yet behind control gateway retransmitted configuration request message pre-determined number, then do not connect with control gateway, directly enters operating state.
Step b further comprises:
B1. control gateway sends instructions to node, reads the present node equipment integral and describes in the service value of service list variable in the node control object, obtains the service that this node device can provide;
B2. control gateway is sent instruction to node, reads the index object of every pointed service of service list one by one, obtains the composition and the using method of every service;
B3. control gateway is created the control subnet descriptor of object-oriented equipment (OOD) according to index object that is obtained and COS.
Therefore, provided by the present invention, have following advantage and characteristics:
1) control gateway structural design of the present invention is simple, and its all constituents all can directly adopt maturation, at a low price chip or equipment, but it can provide diverse network interface and multiple transmission medium interface, therefore, and low, the low in energy consumption and perfect in shape and function of cost.
2) because control gateway of the present invention has polytype and the home automation control network interface, therefore can support simultaneously and the multiple transmission medium that is connected the HACN network.
3) the invention provides the function that the exchanging visit of node intercommunication, control subnet node and external network is asked, these functions all are based on the initial configuration of node, and the configuration of HACN netinit only needs each node is distributed corresponding sign, and is simple to operate, be easy to realize.
4) control gateway of the present invention is supported the ICP/IP protocol standard, allows external network that the equipment on the home automation control network is controlled.
5) be provided with special interface encapsulation unit in control gateway of the present invention, be used to detect user's legitimacy, therefore, the present invention has good safety and encryption feature.
Description of drawings
The domestic network system structural representation that Fig. 1 adopts for the present invention;
Fig. 2 is the schematic diagram of control gateway of the present invention present position in home network;
Fig. 3 is the basic composition structural representation of control gateway of the present invention;
Fig. 4 is the detailed composition structural representation of control gateway of the present invention;
Fig. 5 is control gateway one specific embodiment of the present invention;
Fig. 6 forms structural representation for control gateway software of the present invention;
Fig. 7 is the correlation schematic diagram of software protocal layers in the control gateway of the present invention;
Fig. 8 is the detailed composition structure chart of control gateway software configuration of the present invention;
Fig. 9 realizes the flow chart of node initializing configuration on the control subnet for control gateway of the present invention.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 2, control gateway of the present invention can make external network and local home automation control network respectively by control gateway visit resource and service that the opposite end provided between the control subnet of external network and home network.And control gateway can play the effect of fire compartment wall in the centre, provide safety and cryptographic services to local home automation control network.Here, external network is at home automation control network, be meant the general designation of home automation control network all-network in addition, it includes but not limited to: family's backbone network, public phone network (PSTN), wireless communication networks (GSM/GPRS/3G/SMS), the Internet (INTERNET) etc.
Based on the residing position of control gateway, the basic composition structure of control gateway as shown in Figure 3, mainly comprise three parts: with the interface of external network, with the interface of local home automation control network and processor with operational capability (CPU) and the peripheral circuit thereof that is used for core processing, this peripheral circuit comprises memory at least.
This control gateway detailed composition structure as shown in Figure 4, as can be seen from Figure 4, control gateway can provide the multiple network interface to link to each other with external network, such as wireless lan interfaces, Ethernet interface, dial-up network interface and mobile communication network interface.Wherein, wireless lan interfaces is followed 802.11 agreements; Ethernet interface is followed 802.3 agreements; The dial-up network interface further comprises again: PPP(Point-to-Point Protocol) interface, Integrated Service Digital Network(ISDN) (ISDN) interface, ADSL (Asymmetric Digital Subscriber Line) (ADSL) interface; The mobile communication network interface further comprises again: the interface of global system for mobile communications (GSM), GPRS (GPRS) and 3G (Third Generation) Moblie network (3G).Simultaneously, control gateway can provide multiple transmission medium interface, link to each other with various physical transfer media, such as: power line medium interface, twisted-pair feeder medium interface, less radio-frequency medium interface and infrared ray medium interface etc.The core processing of control gateway partly comprises: CPU (CPU), code/data storage, readable and writable memory (RAM) and clock unit, wherein, code/data storage can be read-only memory (ROM), flash memory (FLASH) or EROM (EEPROM).The core processing part of control gateway all links to each other with home automation control network with external network by bus or input-output equipment, and this bus can be: local bus (Local BUS), pci bus, isa bus, GPIO bus, I
2C bus, UART bus or spi bus.
Control gateway usually by flush bonding processor as core, all can be used as control gateway as long as have the equipment that connects external network and home automation control network ability simultaneously, such as: the PC of the logical structure of a Daepori, realized connecting simultaneously based on the internet of ICP/IP protocol with based on the ability of the home automation control network of HACN agreement by modes such as external expansion card, ancillary equipment, this computer also can be used as control gateway.
Figure 5 shows that a specific embodiment of control gateway of the present invention, the CPU of this control gateway and memory interconnect by address, DCB, and, be connected Ethernet by bus with Ethernet interface, link to each other with the communicating circuit of home automation control network via the bus expansion interface by bus simultaneously.
Present embodiment utilizes embedded microprocessor MCF5307 or MCF5272 etc., adds embedded OS uClinux, constructs above-mentioned control gateway.
In the present embodiment, the core component of control gateway is Motorola Coldfire MCF5307 CPU, is 32 bit CPUs that aim at the Embedded Application design, operating frequency 90MHz, and disposal ability 75Dhrystone 2.1, power consumption 910mW.This MCF5307 CPU has following characteristic:
1>8-Kbyte?unified?cache；
2〉the static SRAM of 4-Kbyte high speed on the sheet;
3〉integer/decimal is taken advantage of-Jia (MAC) arithmetic element and division arithmetic unit;
4〉sdram controller;
5〉4 passage dma controllers;
6〉two 16 general 16 bit timing devices;
7〉have two universal asynchronous serial ports (UART), I
2C bus interface and parallel I/O interface.
SDRAM on this control gateway has the 16M byte, and speed 70ns is by 16 bit data bus and CPU swap data; Flash memory on the control gateway (FLASH MEMORY) has the 4M byte, speed 70ns, and by 16 bit data bus and CPU swap data, erasable number of times representative value 100,000 times.Ethernet interface on this control gateway is a complete 10BaseT Ethernet interface based on the RTL8019AS of Realtek company chip, comprises network transformer and RJ45 socket, can realize and being connected of Ethernet.Simultaneously, can be by on bus, expanding pci interface, perhaps directly use the chip of local bus such as AX88796, realize that the Ethernet of 100M connects.
Control gateway in the present embodiment has two universal asynchronous serial ports (UART), and two of MCF5307 CPU asynchronous serial ports just can be realized being connected between control gateway and the local home automation control network by UART.Each asynchronous serial port has two inputs and two output totally 4 signals respectively, and title is as follows respectively:
Serial ports 1:RXDl (input) ,-RTS1 (input), TXD1 (output) ,-CTS1 (output);
Serial ports 2:RXD2 (input) ,-RTS2 (input), TXD2 (output) ,-CTS2 (output).
From software configuration, as shown in Figure 6, control gateway comprises upper layer application service unit, the HACN of lower floor network encapsulation interface arrangement and the ICP/IP protocol stack of supporting its communication.Wherein, HACN interface packaging system is made of Service Management unit, backbone network device description, control subnet device description, interface encapsulation unit etc.The upper strata can be by the interface api function that bottom provided according to different application, the operation that is configured, inquires about and control.
Further, referring to Fig. 7 and shown in Figure 8, the software configuration of control gateway of the present invention can roughly be divided into five parts: HACN network communication device, HACN service unit, Internet service device, application layer software and operating system.
Wherein, the HACN network communication device is mainly used in transport layer, network layer and the data link layer that realizes in the HACN layered system.
The HACN service unit belongs to the application layer in the HACN layered system, and main design object is to set up an interface opening, standard, between HACN control subnet and application software.The HACN service unit has been hidden the complexity of bottom hardware standard, makes the interface naturalization more offer the upper strata, is convenient to software developer and system integrator and understands and use.This service unit is made of following sub-device: the conversion of backbone network device description, be used for information with the OOD database, be that device descriptive information in the home automation control network converts the device descriptive information on the backbone network to, make that the equipment on the backbone network can conduct interviews to the equipment of HACN subnet; The object encapsulation unit is used for encapsulating a series of standard object, makes application layer to come operand according to the access method of standard.Visit to standard object will be changed by the object encapsulation unit, and send control corresponding/Query Information to the HACN subnet; Standard A PI interface, the api function of responsible encapsulation standard makes application layer can visit node and the function thereof on the HACN by succinct function call; The OCL interpreter, during effective control frame of sending on receiving the HACN subnet, by the implication that the OCL interpreter comes the analysis and Control frame, the result of analysis will write in the OOD database; The OOD database is a reflection (Map) of the OOD description of the whole nodes on the whole HACN network, and the new as far as possible various state informations of its in store each node when making external network and backbone network visit HACN, can obtain up-to-date state rapidly.
The Internet service device comprises the ICP/IP protocol stack and the network adapter drive part of standard for control gateway provides the ability that is connected to the Internet.If selected operating system is supported the ICP/IP protocol stack, the Internet service device is actually and is embedded among the operating system so.
Application layer software, this device belongs to the application layer in the HACN layered system, also belongs to the application layer part in the ICP/IP protocol simultaneously.Application layer software designs as required, and main purpose is for the various interface function that utilizes bottom to provide, and realizes: a) the initial configuration function of HACN subnet; B) protocol conversion of the Internet and HACN subnet.Wherein, the initial configuration function is used to realize the initialization of HACN network gateway end, and it is finished by HACN initial configuration device.
For the protocol conversion of the Internet and HACN subnet, typically, allow external network to conduct interviews by the WWW browser of standard, therefore, realize this function: 1. webpage+database by following three sub-devices; 2. dynamic web page mutual (as CGI); 3. WWW Server web page server.And according to concrete application demand, can also be on gateway integrated other application software, realize more function, for example: calendar management function etc.
Operating system in this control gateway can select to have Embedded type, for example uClinux.Control gateway is to support ICP/IP protocol, but operating system is for realizing that ICP/IP protocol is helpful but be not necessary condition.Therefore, on control gateway, optionally adopt operating system.Such as: adopt the operating system that comprises standard Linux platform, embedded uClinux platform and WIN32 platform.
On a internet based on ICP/IP protocol, usually the method that adopts artificial assigned ip address or utilize DHCP (DHCP) service to distribute the address, network node, such as computer, use name server (DNS) mechanism to discern and locate other network nodes, such mechanism is inapplicable on the HACN network; Therefore, the present invention proposes device initialize simplification, that be easy on home appliance, realize and address assignment, addressing method.
As a rule, the situation that need carry out node initializing configuration has following several:
1) the structure home automation control network that grows out of nothing: all nodes be just dispatched from the factory, be not configured; After installing whole nodes, begin to carry out layoutprocedure;
2) add new node: home automation control network exists, and can normal operation through configuration.Need new one or more new nodes that add, new node be just dispatched from the factory, be not configured, after new node installs, carry out the layoutprocedure relevant with new node;
3) the existing node of deletion: home automation control network exists, and can normal operation through configuration.Wherein one or more nodes break down or since other reasons need from network, remove, so after removing node, can be with information deletion relevant in the network with this node; If do not delete relevant information, will make a mark to this relevant information, so that it is remind other node or this node of user not to exist, invalid to the operation of this node, even thereby guarantee in network, not delete relevant information, do not influence operation to other node in the network yet.
4) add new node, but this node was configured once: home automation control network exists, and can normal operation through configuration.Need new one or more new nodes that add, this new node is configured, but is not suitable for the situation of current network; Before this node is installed, need this node reset is made it become not configuration mode, and then handles according to the 2nd kind of situation.
Node configuration process proposed by the invention may further comprise the steps at least:
1) each node on the home automation control network obtains a legal HACN address from control gateway, and this HACN address is made up of the control subnet sign (Subnet ID) of two bytes and the node identification (Node ID) of two bytes;
2) create control subnet object-oriented equipment (OOD) descriptor of each node on the home automation control network on the control gateway, and generating corresponding backbone network device descriptive information;
3) control gateway disposes the bundle relation between each node according to demand, generate the related information between the device description, and this related information is kept at respectively on control gateway and the interdependent node, the related information that is about to configure downloads on the interdependent node of home automation control network, and each receives that the node of related information is stored in this information in the self database;
Each node of finishing on the home automation control network of above-mentioned layoutprocedure all has the HACN address, and has the ability that realizes other node on the accesses network by related information.
For the node after a no initializtion or the factory reset, it has unique product ID (PSN, Product Serial Number), and this sequence number length is 128, i.e. 16 bytes.No matter be the node from same or different manufacturers, product ID all can not duplicate, and can not revise.
The inventor once proposed a kind of node apparatus that is positioned over each node in another patent application, comprise object-oriented equipment (OOD) database of depositing the node device descriptor in this node apparatus.In this OOD database, depositing a variable, be called: configured.When node was not configured, the configured variable-value was FALSE, represented that this node is not configured; If this node has been assigned with subnet number (Subnet ID) and node serial number (Node ID), and finished the associated configuration of equipment, the configured value will be modified to TRUE so.
Based on this, from the angle analysis of present node, the detailed process of node configuration of the present invention is such, as shown in Figure 9:
1) after node powers on, check whether the configured variate-value of self is TRUE, if be TRUE, then process ends directly enters normal operating conditions; If be FALSE, then enter step 2), enter layoutprocedure.
2) present node sends the message that a request distributes the HACN address on network, the product ID (PSN) that contains self in this message, if accumulative total sends this message above 5 times, show and to have the busy or factors such as gateway does not exist, network disconnection of network, then enter step 6), otherwise enter step 3).
3) after request distributed the HACN address message to send, this node entered accepting state at once.If at short notice, such as 2 seconds, this node has been received the feedback data frame from control gateway, and the PSN information that comprises in this feedback frame is identical with self PSN, shows that this feedback data frame at oneself, then enters step 4); If do not receive the feedback data frame, after the above-mentioned short time, then return step 2 so) carry out and retransmit; If receive the feedback data frame from control gateway, but the PSN that comprises and self PSN do not match, and then continues to postpone certain hour, such as 10 seconds, returns step 2) carry out and retransmit.
4) present node sends a feedback frame to gateway, acknowledges receipt of the HACN address; Present node extracts the HACN address that is comprised in the feedback frame, and is stored in and self has on the memory that keeps function.So far, node has obtained the HACN address that control gateway is distributed, enters step 5) then.
5) present node enters accepting state, waits for the one or more Frames from control gateway.Again according to the request of each Frame, extract the descriptor of self object-oriented equipment (OOD), send to control gateway, make control gateway can create the corresponding apparatus descriptive model.If within a certain period of time, such as 10 seconds, do not receive the Frame that control gateway is sent, then forward step 6) to; If receive the modeling end data frame that control gateway is sent, then forward step 7) to.
6) mistake appears in the indication layoutprocedure, the error level of present node sign layoutprocedure, such as: can't address acquisition or can't make gateway set up model or the like, illustrate that this node can only carry out local operation, still do not possess networked capabilities, enter step 7).
7) node enters operating state.
From the angle analysis of control gateway, it is such that the configuration feature that control gateway of the present invention provided is carried out flow process in detail, equally referring to shown in Figure 9:
1) control gateway powers on prior to node, enters normal operating conditions;
2) if receive the message that distributes the HACN address from the request of certain control subnet node, then enter step 3);
3) distribute subnet number (Subnet ID) according to its place control subnet, and select the idle node serial number (Node ID) in this subnet, the PSN information combination that adds this node be an address assignment message as the feedback frame, enter step 4) then;
4) send a feedback frame, after promptly the address assignment message is given this node, enter step 5); Surpass 3 times if accumulative total sends, then enter step 11);
5) the confirmation of receipt message that sends of wait node if control gateway was received the affirmation message of node in 2 seconds, then enters step 6), retransmits otherwise enter step 4);
6) control gateway is sent instruction to node, obtain equipment integral and describe the value of service list (Service_List) variable in the node control object (Node_Control_Object) in the service (UniversalService), after having which available service on the understanding equipment, enter next step;
7) control gateway is sent instruction to node, reads the index object (Index Object) of every pointed service of service list (Service_List) one by one, understands the composition and the using method of this service, enters next step then;
8) control gateway is created the control subnet descriptor of object-oriented equipment (OOD) according to index object that is obtained and COS, enters next step then;
9) control gateway generates with control subnet OOD and describes corresponding backbone network OOD device description according to the information that is obtained, and enters next step then;
10) control gateway makes node withdraw from interaction mode to the instruction of node transmission " modeling is finished ", the beginning operate as normal; The work of a node of control gateway configuration is finished to this, returns step 2) continue the request message of other node of wait;
11) operation failure of record returns step 2).
After whole node initializing in home automation control network finished, each node had all obtained correct, unique HACN address.Also created the OOD model of each node and control the mapping of subnet to the backbone network device description on control gateway, this network resembles the mirror image set of each node product model in the network, can be described as virtual HACN network.Next, the user can carry out the definition of the mutual control relation of each node by gateway, makes each node cooperative work also be coupled mutually.
Through above-mentioned layoutprocedure, each node on the local home control network can access control gateway, because control gateway provides the multiple network that links to each other with all kinds of external networks interface, node on the then local home control network just can pass through control gateway, visit comprises the resource that various external network provided and the service of family's backbone network, equally, external network also can have access to each node of controlling on the subnet by control gateway.
Control gateway of the present invention is unique interface of local home automation control network and external network, externally, all just can carry out through control gateway the operation of node on the home automation control network.Therefore, the fail safe of local home automation control network is just guaranteed by control gateway.
Control gateway adopts ICP/IP protocol to connect to the outside, and it can be based on general encryption, the security protocol of INTERNET, such as: the 1. RSA Data Security Inc. fail-safe software of authorizing; 2. the fail safe by certification authentication personal identification or website; 3. 128 of website safe in utilization safety connect; 4. socket layer safe in utilization or security socket layer (SSL).
As shown in Figure 6, comprise an interface encapsulation unit in the control gateway software configuration, external network must pass through the interface encapsulation unit to the visit of local home automation control network.Therefore, when the each docking port encapsulation unit of external network conducts interviews, must provide validated user title (user) and 256 s' sequence number (sid), each user has only through behind the cipher authentication, could obtain to be numbered by the sid of control gateway Random assignment.After this, this a pair of variable of user and sid will be effective within a certain period of time, and both must be correct, and the interface encapsulation unit just can be carried out the operation to home automation control network.After overtime, when perhaps the user selected to withdraw from, user and sid guaranteed the security reliability of local home automation control network with invalid with this.
Claims (11)
1, a kind of control gateway, be used to connect the control subnet and the external network of home network, at least comprise: with the interface of external network, with the interface of home automation control network and the core processing unit and the peripheral processes circuit thereof that are connected above-mentioned interface simultaneously, it is characterized in that further comprising in this core processing unit:
The home automation control network network communication device is used to realize the transmitting-receiving and the control of message;
The home automation control network service unit is used to finish the operation of safety certification, descriptor storage, explanation and conversion;
The Internet service device, the connection that is used to provide protocol stack and is responsible for the Internet;
The application layer process device is used to realize the conversion of the initial configuration and the procotol of node;
This application layer process device connects home automation control network service unit and Internet service device simultaneously, home automation control network service unit and the interconnection of home automation control network network communication device, this home automation control network network communication device connects home automation control network, and this Internet service device links to each other with external network.
2, according to claim 1, it is characterized in that: described network interface is a wireless lan interfaces or for Ethernet interface or for the Dial-up Network interface or for the mobile communication network interface.
3, according to claim 1, it is characterized in that: described home automation control network interface is a power line medium interface or for the twisted-pair feeder medium interface or for the less radio-frequency medium interface or for the infrared ray medium interface.
4, according to claim 1, it is characterized in that: comprise in the described peripheral processes circuit being used for storage code and memory of data that described memory is read-only memory or readable and writable memory or its combination.
5, according to claim 1, it is characterized in that: described home automation control network service unit further comprises:
The device description converting unit is used for information translation with the object-oriented device databases and is the device descriptive information on the backbone network;
The object encapsulation unit is used to encapsulate a series of standard object, links to each other with the home automation control network network communication device with standard application DLL (dynamic link library), device description converting unit, object control language interpreter, object-oriented device databases simultaneously;
The standard application DLL (dynamic link library) is used to the API function of the standard that encapsulates, and also links to each other with application layer process device, device description converting unit and object-oriented device databases;
Object control language interpreter is used to analyze the implication of the control frame of being received, and analysis result is write in the object-oriented device databases, also links to each other with the home automation control network network communication device; And
The object-oriented device databases, the object-oriented device description of whole nodes that are used to video, and the state information of preserving each node.
6, a kind of method of utilizing above-mentioned control gateway to realize node intercommunication in the home network control subnet is characterized in that may further comprise the steps:
A. when node device initially enters home automation control network, this node device checks that earlier whether self is through configuration, if, then enter step b, otherwise this node device is transported to control gateway and is put request message, after control gateway is received, distribute to legal home automation control network address of this node device, this node and control gateway connect;
B. control gateway is obtained the equipment and the information on services of this node according to the home automation control network address from the node device of current access, generates the object-oriented device descriptive information of control subnet, generates corresponding backbone network object-oriented device descriptive information simultaneously;
C. control gateway disposes interconnecting relation between each node according to the object-oriented device descriptive information of each node, and with this related information respectively on storage and control gateway and the relevant node device.
7, method according to claim 6 is characterized in that: described home automation control network address is combined by control subnet sign and node identification.
8, method according to claim 6 is characterized in that: whether be detect in this node database the in advance value of the expression configuration status variable of storage in node inspection self among the step a if having disposed.
9, method according to claim 6 is characterized in that this method further comprises: node device if do not receive response at the fixed time, is then retransmitted this request message after control gateway sends the configuring request message.
10, method according to claim 9 is characterized in that this method further comprises: node device is not received response yet behind control gateway retransmitted configuration request message pre-determined number, then do not connect with control gateway, directly enters operating state.
11, method according to claim 6 is characterized in that step b further comprises:
B1. control gateway sends instructions to node, reads the present node equipment integral and describes in the service value of service list variable in the node control object, obtains the service that this node device can provide;
B2. control gateway is sent instruction to node, reads the index object of every pointed service of service list one by one, obtains the composition and the using method of every service;
B3. control gateway is created the control subnet descriptor of object-oriented equipment according to index object that is obtained and COS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021441324A CN1180587C (en) | 2002-09-30 | 2002-09-30 | Method for controlling gateway and realizationg of controlling intercommunication between nodes in sub network of household network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021441324A CN1180587C (en) | 2002-09-30 | 2002-09-30 | Method for controlling gateway and realizationg of controlling intercommunication between nodes in sub network of household network |
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| CN1481128A CN1481128A (en) | 2004-03-10 |
| CN1180587C true CN1180587C (en) | 2004-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021441324A Expired - Fee Related CN1180587C (en) | 2002-09-30 | 2002-09-30 | Method for controlling gateway and realizationg of controlling intercommunication between nodes in sub network of household network |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602006016704D1 (en) * | 2005-11-15 | 2010-10-21 | Alcatel Lucent | Access network, gateway and management server for a cellular mobile communication system |
| CN101047581B (en) * | 2006-03-31 | 2012-07-04 | 中国移动通信集团公司 | Networking communication processing device, system and method for connecting adaptive to communication |
| CN100438517C (en) | 2006-04-30 | 2008-11-26 | 中国移动通信集团公司 | Family gateway equipment |
| JP2010525690A (en) * | 2007-04-29 | 2010-07-22 | 中国移▲動▼通信集▲団▼公司 | Network connection communication processing apparatus and system, and communication connection adaptation method |
| CN101466022B (en) * | 2007-12-19 | 2013-08-21 | 康佳集团股份有限公司 | Method for audio/video on demand by digital household network equipment |
| CN103179027B (en) * | 2011-12-22 | 2016-09-28 | 中兴通讯股份有限公司 | A kind of realize the compatible method and system of electric equipment, Universal peripheral accesses gateway |
| CN103489292B (en) * | 2013-09-18 | 2016-08-10 | 华为终端有限公司 | Safety-protection gateway equipment and communication means, safety alarm system |
| CN108696591A (en) * | 2018-05-16 | 2018-10-23 | 成都甄识科技有限公司 | Intelligent home gateway control system based on NB-IOT and its access method |
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2002
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