CN100450058C - Method for allocating the address of the intelligent information home electrical appliance in the home network - Google Patents
Method for allocating the address of the intelligent information home electrical appliance in the home network Download PDFInfo
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- CN100450058C CN100450058C CNB2006100726875A CN200610072687A CN100450058C CN 100450058 C CN100450058 C CN 100450058C CN B2006100726875 A CNB2006100726875 A CN B2006100726875A CN 200610072687 A CN200610072687 A CN 200610072687A CN 100450058 C CN100450058 C CN 100450058C
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Abstract
The invention relates to a method for allocating the address of the smart information appliance in the home network, including: the smart information appliance transmits the broadcast message; the adaptation unit stores the MAC address of the smart information appliance and send the access signals of the device; the main processing module allocates the free bus address to the smart information appliance, the adaptation unit stores the allocated bus address; the smart information appliance stores the source MAC address and bus address and returns the acknowledgement packet, the adaptation unit stores the stored free bus address and MAC address into the mapping table; the main processing module stores the allocated bus address into the used bus address table. The main processing module allocates the bus address of the smart information appliance via the adaptation unit in the invention, so the network must communicate with the home smart information appliance via the main processing module, which effectively shields the threat from the external network security and enhances the control capability of the host device to the smart information appliance.
Description
Technical field
The present invention relates to a kind of method of devices allocation address that is, relate in particular to the method for distributing the address in a kind of home network for intelligent information home electrical appliance.
Background technology
Along with the development of network technology and information household electric industry, make original simple home appliance to carry out exchanges data with network, thisly can be information household appliances with the home appliance that network carries out information interaction, also be called network home appliance.Information household appliances can receive the data in the network, and to its state information of network-feedback, the birth of information household appliances makes the user just can know the data of the information household appliances in the family by the Internet, thereby makes the user just can recognize the state of information household appliances in can not going back home.Wherein, the electrical equipment that has some simply only to have some logic functions is the logical message household electrical appliances, and is first-class as electric light, the automatically controlled fire hose; In addition information household appliances are intelligent information home electrical appliance, and the function of intelligent information home electrical appliance is many, and the more complicated of its information interaction and data processing as television set, microwave oven, refrigerator, and has equipment complex of hub etc.; And the logical message household electrical appliances only need receive some simple logic control orders (as open and close), and feedback states information (as on off state) get final product, do not need the information interaction of complexity.
The protocol stacks that adopt TCP/IP in the existing home network more, and be that intelligent information home electrical appliance distributes the address based on the agreements such as more high-rise SOAP, HTTP of TCP/IP, and encode.
The addressing of its equipment, and what adopt is the automatic configuration of IP address, dynamic technology such as DHCP distribution mechanism and dns resolution, and mostly the mutual discovery of equipment and the issue of service content are to adopt http protocol and based on the agreements such as SOAP of general XML template.Equipment provides the path that can visit by various URL addresses such as own facility information of issue and information on services to miscellaneous equipment, realizes serving the function that provides.
In the existing home network, though the title of various coding protocols and purposes are not quite similar, the coding rule of these technology adopts the XML technology more.
Protocol stack model in these home-network protocols systems comprises as shown in Figure 1: application layer protocol A1, transport layer protocol (TCP/IP, SPX etc.) A2 and network layer protocol (IP, IPX etc.) A3.
The defective that above-mentioned these technical schemes exist is:
1) for existing home-network protocols stack, they adopt the ICP/IP protocol stack mostly.IP network itself is difficult to the safety assurance that provides stronger, and this just needs upper-layer protocol to improve various demands for security, thereby has increased the complexity of agreement.
2) home network any network schemer different from the past, it directly is deep into the every aspect of subscriber household life, and the user must wish that this network is that safety is easy-to-use for the kinsfolk, is inaccessible for other personnel or equipment.But the overall architecture of other home network all is based on TCP/IP's, its information household appliances have the IP address, home network is exactly a small-sized local area network (LAN), can insert Internet, information household appliances can be surfed the Net, the equipment of home network outside (except that user's portable terminal) can the visit information household electrical appliances be extremely dangerous for the user.If information household appliances are linked to the home network outside, the just very possible subscriber household information of revealing; If outside fallacious message enters home network inside, just may threaten the safety of subscriber household.
3) protocol stack of existing home network is all emphasized the instant discovery of equipment, but this discovery also is based on the discovery mechanism of a whole set of IP stack, in a single day find mutually between the equipment, just can communicate by letter separately, because family's internal information household electrical appliances have this communication and interoperability, some operation just can get around home gateway, makes home gateway strong inadequately for the control ability of digital home.
4) existing home network has all been emphasized the intelligent of information household appliances, and for mutual discovery and the service that realizes equipment provides, each equipment also need keep the information on services tabulation of a miscellaneous equipment except the information that will issue oneself, increased the household electrical appliances cost.
5) existing home network mainly adopts the address format of IPv4, in the home network in future is used, the access of bulk information household electrical appliances, the limited restriction of IPv4 address resource will be run into inevitably, after network is popularized, perhaps take the mapping of IPv4 address and IPv6 address, perhaps adopt the mode that upgrades to the IPv6 address, this all can bring some unnecessary troubles to the user.
Summary of the invention
The objective of the invention is to propose in a kind of home network to distribute the method for address for intelligent information home electrical appliance at above-mentioned the deficiencies in the prior art, employed protocol stack is simple, high safety, make that all information household appliances all communicate by the main processing block and the external network of main process equipment in the family, effectively the safety of shielding external network becomes the side of body, and strengthens the control ability of main process equipment in the digital home network.
For achieving the above object, the invention provides the method for distributing the address in a kind of home network for intelligent information home electrical appliance, this method may further comprise the steps:
After step 2, adaptation unit receive described broadcast, store the MAC Address of described intelligent information home electrical appliance, described broadcast is converted to the bus signals that has the equipment access information, and send to main processing block;
The bus signals that step 3, described main processing block will include the bus address of a free time sends to described adaptation unit;
Step 4, described adaptation unit are stored the bus address of described free time, the bus signals that will have the bus address of described free time is encapsulated as the unicast messages of the MAC Address that has described main processing block, and according to the MAC Address of the described intelligent information home electrical appliance of storing described unicast messages is sent to described intelligent information home electrical appliance;
After step 5, described intelligent information home electrical appliance receive described unicast messages, resolve the MAC Address of the described main processing block of acquisition and the bus address of described free time, and store the MAC Address of described main processing block and the bus address of described free time, return acknowledge message to described adaptation unit;
Step 6, described adaptation unit go into to be used for the mapping table of the mapping relations of record trunk address and MAC Address with the MAC Address unloading of the bus address of the free time of described storage and described intelligent information home electrical appliance, and return the bus signals that has acknowledge message to described main processing block;
After step 7, described main processing block receive described acknowledge message, the bus address of described free time deposited in be designated as in the bus address table that has used;
Step 8, end.
The present invention is intelligent information home electrical appliance distribution bus address by adaptation unit by main processing block, simultaneously the MAC Address of main processing block is sent to intelligent information home electrical appliance by adaptation unit, when the intelligent information home electrical appliance that inserts home network like this sends message only the MAC Address with main processing block be destination address, only communicate, and do not communicate with other household electrical appliances with main processing block.And all intelligent information home electrical appliances in the home network are all inserted main processing block in the main process equipment, the network of family outside all must could carry out communication with the information household appliances in the family by the main processing block of main process equipment like this, shielded the security threat of external network effectively, strengthened the control ability of main frame simultaneously intelligent information home electrical appliance; And, therefore there is not the problem that takies the IP address resource owing to only be required to be intelligent information home electrical appliance distribution bus address.
In the such scheme, described intelligent information home electrical appliance sends before the broadcast, can insert described adaptation unit by PLC carrier system and/or wireless mode and/or category-5 cable mode.
Described main processing block can adopt bus protocols such as usb protocol and/or 1394 agreements and described adaptation unit to communicate, therefore, in the described step 2, described adaptation unit can be converted to described broadcast usb signal or 1394 bus signals that have the equipment access information; In the described step 3, described main processing block can will include the usb signal of the USB address of a free time, and 1394 signals that perhaps will include 1394 bus addresss of a free time send to described adaptation unit; In the described step 4, described adaptation unit is stored described USB address or 1394 bus addresss, and will have the usb signal of USB address of described free time or 1394 signals that have 1394 idle bus addresss are encapsulated as unicast messages; In the described step 6, the USB address of the described free time that described adaptation unit will be stored or 1394 bus addresss and MAC Address unloading are gone in the described mapping table; In the described step 7, described main processing block deposits the USB address of described free time or 1394 bus addresss in and is designated as in the USB address table or 1394 address tables that has used.
As a kind of improvement of the present invention, after described adaptation unit receives described broadcast, can from described mapping table, search the MAC Address of the described intelligent information home electrical appliance that receives earlier, if find described MAC Address, then do not do any processing, finish whole flow process or described broadcast is converted to bus signals to send to described main processing block, finish whole flow process; If the result who searches is sky, the MAC Address of then storing described intelligent information home electrical appliance.Thereby avoided inserting the be duplicatedly distributed possibility of bus address of intelligent information home electrical appliance.Because there is deleted possibility in the MAC Address of the main processing block of storing in the intelligent information home electrical appliance that inserts again, therefore, described adaptation unit found after the MAC Address of described intelligent information home electrical appliance before finishing whole flow process, also will send the message of the MAC that include described main processing block to described intelligent information home electrical appliance.
As another kind of improvement the of the present invention, when described adaptation unit is handled described broadcast, inserted the intelligent information home electrical appliance of described adaptation unit and judged whether the source MAC in the described broadcast is identical with the MAC Address of the described main processing block of storing, if identical, then receive described broadcast; Otherwise, abandon described broadcast.Got rid of the interference of broadcast that the intelligent information home electrical appliance of new access sends like this to other intelligent information home electrical appliances that inserted, more effectively isolated the intercommunication mutually between the information household appliances, do not carry out communication between the intelligent information home electrical appliance, do not need to keep the information on services tabulation of other intelligent information home electrical appliances yet, saved the household electrical appliances cost.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the protocol stack schematic diagram of prior art;
Fig. 2 is for distributing USB mark packet format schematic diagram in the address approach for intelligent information home electrical appliance in the home network of the present invention;
The protocol stack schematic diagram of Fig. 3 for distributing address approach to use for intelligent information home electrical appliance in the home network of the present invention;
Fig. 4 is for distributing the flow chart of the preferred embodiment of address approach for intelligent information home electrical appliance in the home network of the present invention;
Fig. 5 is for distributing the flow chart of another preferred embodiment of address approach for intelligent information home electrical appliance in the home network of the present invention.
Embodiment
The communication protocol stack of home gateway system is mainly taked a kind of mode as shown in Figure 3, and bottom is physical layer protocol C1, and last layer is Ethernet protocol C2, and last layer is bus protocol C3 again, and top is application protocol C4.Wherein, the access way of physical layer can have multiple, comprising: PLC carrier wave, wireless mode, category-5 cable mode etc., also can its combination in any, and intelligent information home electrical appliance inserts adaptation unit thus.Bus protocol preferentially adopts usb protocol, and ethernet layer is mainly finished the adaptive of bottom-up information and USB layer information and Ethernet information, to the high level shielding concrete technology that bottom adopted, and finishes some function based on the ethernet mac address addressing.The USB layer mainly provides the function of equipment plug and play, and the ability of each intelligent information home electrical appliance and host module interactive information.Application layer mainly provides the more information on services of horn of plenty, reliable and secure abilities such as communication assurance.
Thereby our the common Ethernet of understanding mainly all is to finish the correct transmission that realizes message with certain mapping relations of IP address by address resolution technology such as existing ARP or SARP.But for home gateway system, taked the form of non-IP network, this just need finish the mapping relations of ethernet mac address and USB layer address, or even more high-rise mapping.
The USB layer can be realized the application program and the information interaction of specifying peripheral hardware of host module by specific packet format, its mark packet format is made up of PID field B1, ADDR field B2, ENDP field B3 and CRC5 field B4 as shown in Figure 2.Wherein, PID mark B1 field is 8 bits, is divided into mark, data, shakes hands, special-purpose four types, and wherein the mark bag can only be sent by host computer control module, is used for and being connected and the appointment of input and output direction etc. of peripheral hardware.Address field is 7 bits, and maximum can connect 127 USB peripheral hardwares.ENDP field B3 has indicated the port numbers of intelligent information home electrical appliance, makes things convenient for the ability of main frame flexible addressing need be with an above port communication time, can support 16 ports at most.CRC5 field B4 has guaranteed the correctness of address and peer-port field.
This kind mark packet format at USB, the present invention proposes USB address and MAC Address map listing are set in host module, when main frame need be communicated by letter with intelligent information home electrical appliance, it can obtain the intelligent information home electrical appliance MAC Address by tabling look-up, and realized clean culture at the MAC layer.Can realize multicast pattern according to the actual requirements in addition based on some intelligent information home electrical appliance.Specific embodiment as shown in Figure 5.
Fig. 4 specifically carries out following steps for distribute the flow chart of a preferred embodiment of address in the home network of the present invention for intelligent information home electrical appliance:
After step 12, adaptation unit receive described broadcast, store the MAC Address of described intelligent information home electrical appliance, described broadcast is converted to the bus signals that has the equipment access information, and send to main processing block;
Specifically comprise following three steps in the present embodiment:
After step 121, adaptation unit received described broadcast, judging destination address by the frame head of analyzing broadcast was up broadcast address, and source address is the television set MAC Address;
The MAC Address of step 122, adaptation unit storage television set;
When television set is in frequent power-on and power-off situation, may exist adaptation unit not have enough time to delete the MAC Address of this television set, main processing block will take place like this redistribute a bus address for this television set, for fear of being a MAC Address duplicate allocation USB address, just need at first from mapping table, to search in the existing MAC address table this MAC Address, if have, then direct process ends, the bus address that distributes before the acquiescence, perhaps send the bus signals that television set inserts again, a process ends then to main processing block; Generally speaking, under the situation of the quick power-on and power-off of intelligent information home electrical appliance, the MAC Address of the main processing block of its storage can be not deleted, but for the deleted problem of bringing of preventing MAC address, before process ends, can also send a bus signals that includes the MAC Address of main processing block to intelligent information home electrical appliance; If there is not the MAC Address of television set in the mapping table, show that then this MAC Address is to occur for the first time, at this moment just store this address and send the bus signals that a USB device inserts to the main processing block of main process equipment, send to the main processing block of main process equipment.Generally speaking, because the message that the intelligent information home electrical appliance that has inserted sends is unicast messages, therefore, can search;
At this moment, if inserted the broadcast that the intelligent information home electrical appliance of main frame may can receive also that new adding intelligent information home electrical appliance sends, just judge at first whether the source MAC in the described broadcast is identical with the MAC Address of the main processing block of storing, if identical, then receives described broadcast; Otherwise, just abandon this broadcast.Thereby just effectively isolated the intercommunication mutually between the information household appliances, made the intelligent information home electrical appliance unification be controlled by main process equipment.
The bus signals that step 13, described main processing block will include the bus address of a free time sends to described adaptation unit; Specifically comprise following two steps in the present embodiment:
After main processing block in step 131, the main process equipment detects equipment access signal, know that a new equipment adds, and finds out the USB address of a free time;
The bus signals that step 132, main processing block will include idle USB address sends to adaptation unit;
The adaptation unit of step 14, adaptation unit deposits USB address idle in this signal in the buffer memory in, and the ethernet address of main frame as source address, the MAC Address of television set of storage as destination address, is encapsulated in usb signal in the ethernet frame and sends;
After step 15, described intelligent information home electrical appliance receive described unicast messages, resolve the MAC Address of the described main processing block of acquisition and the USB address of distribution, and storage, acknowledge message returned to described adaptation unit; In the present embodiment, specifically comprise following two steps:
The processing unit of step 152, television set returns confirms that bag is to main process equipment;
After step 161, adaptation unit receive the confirmation bag, the MAC Address of previously stored USB address and television set is deposited in the mapping table of bus address and MAC Address;
After step 17, described main processing block receive described acknowledge message, the bus address of described free time deposited in be designated as in the bus address table that has used; For example, after the main processing block of main process equipment receives the message that the USB address assigned, the USB address deposited in be designated as in the bus address tabulation of having used.
At this moment main process equipment is that television set has distributed bus address by adaptation unit by main processing block just, like this, next it just can obtain some easy configuration information of television set, learn from outer network server which concrete service this television set can provide, thereby the user learns this information by main process equipment within the family.In addition, if the user in the family outside, can also reach the purpose of control television set by outer network server and gateway.
Fig. 5 is for distributing the flow chart of another preferred embodiment of address for intelligent information home electrical appliance in the home network of the present invention, present embodiment is example with the microwave oven, specifically carries out following steps:
After step 221, adaptation unit received described broadcast, judging destination address by the frame head of analyzing broadcast was up broadcast address, and source address is the MAC Address of microwave oven;
The MAC Address of step 222, adaptation unit storage microwave oven;
Step 223, adaptation unit send the bus signals that an equipment inserts to the main processing block of main process equipment.
When microwave oven is in frequent plugging condition, may exist adaptation unit not have enough time to delete the MAC Address of this microwave oven, main processing block will take place like this redistribute a bus address for this microwave oven, for fear of being a MAC Address duplicate allocation USB address, just need at first from mapping table, to search in the existing MAC address table this MAC Address, if have, then direct process ends, the bus address that distributes before the acquiescence, perhaps send the bus signals that microwave oven inserts again, a process ends then to main processing block; Generally speaking, under the situation of intelligent information home electrical appliance fast insert-pull, the MAC Address of the main processing block of its storage can be not deleted, but for the deleted problem of bringing of preventing MAC address, before process ends, can also send a bus signals that includes the MAC Address of main processing block to intelligent information home electrical appliance; If there is not the MAC Address of microwave oven in the mapping table, show that then this MAC Address is to occur for the first time, at this moment just store this address and send the bus signals that a USB device inserts to the main processing block of main process equipment, send to the main processing block of main process equipment.Generally speaking, because the message that the intelligent information home electrical appliance that has inserted sends is unicast messages, therefore, can search;
At this moment, may also can receive the broadcast that initiate microwave oven sends if inserted the intelligent information home electrical appliance such as the television set of main process equipment, just judge at first whether the source MAC in the described broadcast is identical with the MAC Address of the main processing block of storing, if identical, then receive described broadcast; Otherwise, just abandon this broadcast.Thereby just effectively isolated the intercommunication mutually between television set and the microwave oven, made intelligent information home electrical appliance unifications such as television set and microwave oven be controlled by main process equipment.
The bus signals of the USB address of step 23, a main process equipment free time of encapsulation also sends to adaptation unit; Specifically comprise following two steps:
After the main processing block of step 231, main process equipment detects equipment access signal, know that a new equipment adds, and finds out the USB address of a free time;
The bus signals that step 232, main processing block will include idle USB address sends adaptation unit;
The adaptation unit of step 24, adaptation unit deposits USB address idle in this signal in the buffer memory in, and the ethernet address of main frame as source address, the MAC Address of microwave oven of storage as destination address, is encapsulated in usb signal in the ethernet frame and sends;
The processing unit of step 25, microwave oven is resolved the MAC Address of acquisition main processing block and the USB address that main processing block distributes, and storage, returns and confirms bag; Specifically comprise following two steps:
The processing unit of step 252, microwave oven returns confirms that bag is to main process equipment;
After the main processing block of step 27, main process equipment receives the message that the USB address assigned, the USB address deposited in be designated as in the bus address tabulation of having used.
At this moment main process equipment is that microwave oven has distributed bus address by adaptation unit by main processing block just, like this, next it just can obtain some easy configuration information of microwave oven, learn from outer network server which concrete service this microwave oven can provide, thereby the user learns this information by main process equipment within the family.In addition, if the user in the family outside, can also reach the purpose of controlled microwave stove by outer network server and gateway.
Need to prove that when intelligent information home electrical appliance is when having the equipment complex of hub, in fact main processing block has distributed to the hub in the equipment complex to the bus address that intelligent information home electrical appliance distributes.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1, distribute the method for address in a kind of home network for intelligent information home electrical appliance, it is characterized in that may further comprise the steps:
Step 1, intelligent information home electrical appliance send a broadcast that has the MAC Address of described intelligent information home electrical appliance;
After step 2, adaptation unit receive described broadcast, store the MAC Address of described intelligent information home electrical appliance, described broadcast is converted to the bus signals that has the equipment access information, and send to main processing block;
The bus signals that step 3, described main processing block will include the bus address of a free time sends to described adaptation unit;
Step 4, described adaptation unit are stored the bus address of described free time, the bus signals that will have the bus address of described free time is encapsulated as the unicast messages of the MAC Address that has described main processing block, and according to the MAC Address of the described intelligent information home electrical appliance of storing described unicast messages is sent to described intelligent information home electrical appliance;
After step 5, described intelligent information home electrical appliance receive described unicast messages, resolve the MAC Address of the described main processing block of acquisition and the bus address of described free time, and store the MAC Address of described main processing block and the bus address of described free time, return acknowledge message to described adaptation unit;
Step 6, described adaptation unit go into to be used for the mapping table of the mapping relations of record trunk address and MAC Address with the MAC Address unloading of the bus address of the free time of described storage and described intelligent information home electrical appliance, and return the bus signals that has acknowledge message to described main processing block;
After step 7, described main processing block receive described acknowledge message, the bus address of described free time deposited in be designated as in the bus address table that has used;
Step 8, end.
2, method according to claim 1 is characterized in that: in the described step 1, described intelligent information home electrical appliance sends before the broadcast, inserts described adaptation unit by PLC carrier system and/or wireless mode and/or category-5 cable mode.
3, method according to claim 1 and 2 is characterized in that: in the described step 2, described adaptation unit is converted to described broadcast the usb signal that has the equipment access information.
4, method according to claim 1 and 2, it is characterized in that: in the described step 2, after described adaptation unit receives described broadcast, before storing the MAC Address of described intelligent information home electrical appliance, from described mapping table, search the MAC Address of the described intelligent information home electrical appliance that receives,, then carry out described step 8 if find described MAC Address, perhaps described broadcast is converted to bus signals and sends to described main processing block, carry out described step 8; If the result who searches is sky, the MAC Address of then storing described intelligent information home electrical appliance.
5, method according to claim 4, it is characterized in that: in the described step 2, after finding described MAC Address, finishes described adaptation unit also will return a message that includes the MAC Address of described main processing block before the whole flow process to described intelligent information home electrical appliance.
6, method according to claim 1 and 2, it is characterized in that: when carrying out described step 2, inserted the intelligent information home electrical appliance of described adaptation unit and judged whether the source MAC in the described broadcast is identical with the MAC Address of the described main processing block of storing, if identical, then receive described broadcast; Otherwise, abandon described broadcast.
7, method according to claim 1 and 2 is characterized in that: in the described step 3, the usb signal that described main processing block will include the USB address of a free time sends to described adaptation unit.
8, method according to claim 7 is characterized in that: in the described step 4, described adaptation unit is stored described USB address, and the usb signal that will have the USB address of described free time is encapsulated as unicast messages.
9, method according to claim 7 is characterized in that: in the described step 6, USB address and the MAC Address unloading of the described free time that described adaptation unit will be stored are gone in the described mapping table.
10, method according to claim 7 is characterized in that: in the described step 7, described main processing block deposits the USB address of described free time in and is designated as in the USB address table that has used.
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| CN1373596A (en) * | 2001-02-28 | 2002-10-09 | 英保达股份有限公司 | Method and devicer for controlling domestic network appliances by mobile telephone |
| CN2638343Y (en) * | 2003-07-10 | 2004-09-01 | 中山圣马丁电子元件有限公司 | Network control device for domestic electrical equipment |
| CN1578246A (en) * | 2003-07-14 | 2005-02-09 | Lg电子株式会社 | Home appliance network system and method for operating the same |
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| CN101056234A (en) | 2007-10-17 |
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