CN1311666C - Method for realizing route mechanism based on UPNP protocal radio network - Google Patents
Method for realizing route mechanism based on UPNP protocal radio network Download PDFInfo
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Abstract
The present invention relates to a method for realizing wireless network route mechanism based on a UPNP protocol, which requires each wireless network device for having route functions, and consequently can realize route information subscription, new device online, old device offline, a UPNP control order, external information route transmission and route list generating mechanism. A network device which applies the method for wireless network route mechanism based on the UPNP protocol in the present invention has a device route information table and a destination device parameter information table. The method of the present invention can solve communication among a plurality of long distance wireless devices without setting a wireless intermediate transit point and a route device, so device cost is correspondingly lower. Besides, the present invention can thoroughly realize the resource share among wireless devices and improve the practicality of wireless networks and the actual effects of information interaction.
Description
Technical field
The present invention relates to a kind of method that realizes based on UPNP protocol wireless network routing mechanism, realize the inner mutual message transmission of all devices of Radio Network System specifically and need not special-purpose routing device.
Background technology
The most still traditional cable network connecting mode of existing network construction, complicated line has limited the equipment mobile office and has used.Cable is limited in certain fixed-site with various information equipments, is difficult to bring into play himself conveniently moving, function advantage efficiently for novel mobile office device, and wireless network also becomes the dominant direction of existing network technical development.
Development along with various radio network techniques, the particularly use of 802.11 agreements, existing wireless network embody install convenient, use flexibly, be easy to characteristics such as expansion, but existing wireless network also has following shortcoming, the wireless network transmissions distance of promptly using 802.11 agreements is limited, can only in a WLAN, carry out communication, the communication that solves a plurality of remote-wireless equipment rooms need be provided with a plurality of wireless transfers and routing device usually in network, thereby the corresponding raising of system equipment cost.
At present for realizing being interconnected and resource-sharing of wireless device, also have and adopt the UpnP protocol technology to realize finding automatically that other are based on the UpnP protocol devices, but main performance all is to realize basic device discovery and communication, and precondition is to need the direct communication of LA Management Room or need the configure hardware routing device to realize.
Summary of the invention
Realization of the present invention is based on the method for UPNP protocol wireless network routing mechanism, can address the above problem and not enough and realize Route Selection between each wireless device, accomplish to participate in or the equipment room that can not realize direct communication also can pass through method for routing of the present invention, mutual intelligence interconnection and the resource-sharing of the realization network equipment even without routing device.
Realization of the present invention is based on the method for UPNP protocol wireless network routing mechanism, at realizing that based on the mutual UNICOM of the LA Management Room of UPNP agreement physical layer connects and do not support the present situation of networking routing function at present.The network system that method of the present invention is adapted to build temporarily need not network router and server, but needs each equipment based on the UPNP agreement to have routing function, thereby realizes equipment UNICOM and communication outside the effective wireless distances of equipment self.
Realization of the present invention is based on the method for UPNP protocol wireless network routing mechanism, require each Wireless Communication Equipment to have routing function, thereby can realize that routing iinformation is subscribed to, new equipment is reached the standard grade, used equipment rolls off the production line, UPNP control command and external information route transmission and routing table generting machanism.
Use the network equipment of realization of the present invention, have equipment route information table, target device parameter information table based on UPNP protocol wireless network routing mechanism method.
Source device is the equipment of initiating data communication, each equipment in wireless network of the present invention all is source devices, each source device with routing function all has an equipment route information table, and its form is: target device+interconnecting device+routed path+routing times.
Also include target device parameter information table in every routing device, after entering network, obtains equipment all target device informations, information is added in this target device parameter information table, and its form is: target device code name+target device IP address+target device attribute+target device explanation.
Realization of the present invention is after a source device enters network based on the method for UPNP protocol wireless network routing mechanism, according to generating by following flow process or the route information table of updating the equipment, target device parameter information list file:
The first step, the IP address assignment of wireless device;
Second step, the determining of the route information table of new equipment;
In the 3rd step, existed the route information table of equipment to upgrade;
The 4th step, the notice that rolls off the production line of wireless device;
If the situation of unexpected power down takes place in certain equipment, then can not offline information be notified to other equipment by the 4th rapid step by step content, the described escape mechanism of above-mentioned the 4th step content lost efficacy, and promptly adopted following step operation after the described network system initialization;
The 5th step, regularly inquiry mechanism;
Realization of the present invention is based on the method for UPNP protocol wireless network routing mechanism, finish on the basis of equipment route information table and target device parameter information table in above-mentioned generation or renewal, can carry out transfer of data and feedback information between source device and target device.
1, source device to the flow process that target device carries out the data transmission is:
Source device is determined optimal path and interconnecting device by the equipment route information table, and packet is sent to interconnecting device;
Interconnecting device resolution data bag obtains hop count and destination device address, after the hop count position adds 1, re-constructs packet;
The equipment route information table of this equipment of inquiry obtains the optimal path and the next interconnecting device that arrive target device, and resends this packet;
By that analogy, till arriving target device;
If hop count bit data＞54 o'clock prove that this packet is in the endless loop state in the networking, this moment, routing device abandoned this packet, and sent error message to source device.
2, the flow process of target device reception data is:
Behind the equipment receiving data, judge whether the IP address in the route data packets is the IP address of this equipment;
If then stop forwarding and deal with data;
If not, then continue to transmit.
Wherein, the form of received data packet is: packet header+source device IP address+target device IP address+data text+hop count+verification and+bag tail.
As mentioned above, realization of the present invention is based on the method for UPNP protocol wireless network routing mechanism, can solve the communication of a plurality of remote-wireless equipment rooms and need not to be provided with wireless transfer and routing device, thereby equipment cost is corresponding lower.And can fully realize resource-sharing between wireless device, improve the practicality of wireless network and the actual effect of information interaction.
Description of drawings
Fig. 1 is the form schematic diagram of route data packets;
Fig. 2 is to be the Network Transmission schematic diagram of source device with A;
Fig. 3 is to be the Network Transmission schematic diagram of source device with B;
Fig. 4 is to be the Network Transmission schematic diagram of source device with C;
Fig. 5 is to be the Network Transmission schematic diagram of source device with D;
Fig. 6 is to be the Network Transmission schematic diagram of source device with E;
Fig. 7 is the equipment workflow that rolls off the production line;
Fig. 8 is the system starting process flow chart;
Fig. 9 is the generation of routing table and upgrades flow chart.
Embodiment
Realization of the present invention requires each Wireless Communication Equipment to have routing function based on the method for UPNP protocol wireless network routing mechanism.
Use the network equipment of realization of the present invention, all have equipment route information table, target device parameter information table based on UPNP protocol wireless network routing mechanism method.
Source device is the equipment of initiating data communication, each equipment in wireless network of the present invention all is source devices, each source device with routing function all has an equipment route information table, and its form is: target device+interconnecting device+routed path+routing times.
Target device is expressed all equipment code names that can arrive by routing function in the network.Source device connects by route Lu Jingyu target device, and realizes information communication;
Interconnecting device is expressed source device and is realized that by a plurality of routing device switchings the device definition with first communication of source device in routed path is an interconnecting device to target device transmission information.
Routed path has defined source device all paths to target device, can select optimum path to carry out network communication by the routed path source device.But source device sends information to target device, is not the optimal path transmission of certain requirement according to source device, but by selecting optimal path, determines interconnecting device.
Routing times, the routing times that the expression source device need be transferred to target device.Wherein, 1 expression can directly arrive, and repeatedly expression must arrive by routing device.
Include target device parameter information table in every routing device, after entering network, obtains equipment all target device informations, information is added in this target device parameter information table, its form is: target device code name+target device IP address+target device attribute+target device explanation, wherein
The target device code name utilizes sequence number to represent;
Target device IP address is equipment real network IP address;
The target device attribute, sign be permanent plant or mobile device;
The target device explanation is based on the necessary description of the equipment explanation of UPNP agreement.
As shown in Figure 1, the form of route data packets is: packet header+source device IP address+target device IP address+data text+hop count+verification and+bag tail, wherein:
Packet header is the sign of route data packets, after routing device obtains packet, is that by judging that packet header is promptly known route data packets, its sign are FB, FE;
Source device IP address is the IP address of equipment that sends data;
Target device IP address is the IP address of equipment that finally receives data;
The data text can be UPNP protocol command or external data flow transmitted;
Hop count is the hop count of route data packets;
Verification and, adopt hexadecimal, take 2 bytes, be to be source device IP address+target device IP address+data text+hop counts with computational methods, fill it up with and overflow;
The bag tail is the end mark of packet, and its sign is FC.
Realization of the present invention is promptly determined " the equipment route information table " of himself based on the method for UPNP protocol wireless network routing mechanism by each equipment after described wireless network starts, comprising:
1, target device determines
Source device enters in the wireless network, will have mechanism to obtain equipment all in the network according to the road, and be defined as target device.
2, routed path determines
If the directly communications of two wireless devices then do not need the routing device support, routed path from source device directly to target device; Can not directly arrive, then need to determine routed path, the routed path of equipment can have multiple, but must satisfy,
In every routed path repeated plant cannot be arranged;
Per two directly communications of transit route equipment then do not need the third party device switching.
3, interconnecting device determines
First routing device of every paths is an interconnecting device
4, routing times determines
Can calculate routing times according to routed path.
As Fig. 2-shown in Figure 6, be set in total A, B, C, D, five equipment of E in the WLAN with UPNP Routing Protocol, because wireless transmission distance is limited, following equipment room can be realized direct communication:
A-B、B-C、C-D、E-A、E-B、E-C
The communication of other equipment rooms then need be by means of routing function.After 5 equipment are connected into network, according to the route list of other renewal of the equipment oneself.
As shown in Figure 2, be to be the Network Transmission schematic diagram of source device with A, then the equipment route information table of A equipment is as shown in the table:
| Target device | Interconnecting device | Routed path | Routing times |
| B | B | A-＞B | 1 (need not the route support) |
| C | B | A-＞B、B-＞C | 2 |
| E | A-＞E、E-C | 2 | |
| D | B | A-＞B、B-＞C、C-＞D | 3 |
| E | A-＞E、E-＞C、C-＞D | 3 | |
| E | E | A-＞E | 1 (need not the route support) |
As shown in Figure 3, be to be the Network Transmission schematic diagram of source device with B, then the equipment route information table of B equipment is as shown in the table:
| Target device | Interconnecting device | Routing procedure | Routing times |
| A | A | B -＞A | 1 |
| C | C | B-＞C | 2 |
| D | C | B-＞C、C-＞D | 2 |
| E | E | B-＞E | 1 |
As shown in Figure 4, be to be the Network Transmission schematic diagram of source device with C, then the equipment route information table of C equipment is as shown in the table:
| Target device | Interconnecting device | Routing procedure | Routing times |
| A | B | C-＞B、B-＞A | 2 |
| E | C-＞E、E-＞A | 2 | |
| B | B | C-＞B | 1 |
| D | D | C-＞D | 1 |
| E | E | C-＞E | 1 |
As shown in Figure 5, be to be the Network Transmission schematic diagram of source device with D, then the equipment route information table of D equipment is as shown in the table:
| Target device | Interconnecting device | Routing procedure | Routing times |
| A | C | D-＞C、C-＞B、B-＞A | 3 |
| C | D-＞C、C-＞E、E-＞A | 3 | |
| B | C | D-＞C、C-＞B | 2 |
| C | C | D-＞C | 1 |
| E | C | D-＞C、C-＞E | 2 |
As shown in Figure 6, be to be the Network Transmission schematic diagram of source device with E, then the equipment route information table of E equipment is as shown in the table:
| Target device | Interconnecting device | Routing procedure | Routing times |
| A | A | E-＞A | 1 |
| B | B | E-＞B | 1 |
| C | C | E-＞C | 1 |
| D | C | E-＞C、C-＞D | 2 |
Realization of the present invention is after a source device enters network based on the method for UPNP protocol wireless network routing mechanism, according to generating by following flow process or the route information table of updating the equipment, target device parameter information list file.
The first step, the IP address assignment of wireless device;
The user can configure the IP address of oneself in advance; If set, then generate the IP address as shown in Figure 8 automatically;
Wireless Communication Equipment start is gone forward side by side behind the network, the hardware detection that powers on be adopt wired, or adopt wireless connections and be configured (701);
Carry out system initialization (702);
The initialization of UPNP protocol stack (703), the root device registration of protocol stack;
Judged whether Dynamic Host Configuration Protocol server (704);
According to the DHCP agreement, to Dynamic Host Configuration Protocol server application IP address (705), server-assignment also sends the IP address, and wireless device obtains IP address (407);
If no Dynamic Host Configuration Protocol server then carries out automatic network registration and information subscribing (706) according to the UPNP agreement.
Second step, the determining of the route information table of new equipment, as shown in Figure 9;
Before equipment entered network, equipment route information table and target device parameter information table were empty;
Enter behind the network according to the UPNP agreement, with the form of the broadcasting information to network issue oneself, information comprises: the description of the IP address of this equipment, the attribute of this equipment (being wireless or wireline equipment), this equipment.
After other equipment obtain broadcast message, upgrade the equipment route information table of oneself, the IP address of writing down this equipment, this equipment and be set to interconnecting device, route approach for directly arriving (routing times is 1) etc.; Be the broadcasting equipment feedback information simultaneously, information comprises: the attribute of receiving equipment and explanation.
The equipment of issue broadcast message is according to the equipment route information table and the target device parameter information table of return information renewal self.
The equipment of aforementioned issue broadcast message is given an order, and subscribes to the equipment route information table of feedback information equipment and the attribute of target device; Comprising the directly equipment of communication of source device in the equipment route information table of these target devices;
Subscribed equipment Returning equipment route information table, with and the attribute of equipment, feedback content comprises: the attribute of the IP address of target device, routing procedure, routing times, target device and the explanation of target device;
Source device upgrades equipment route information table and the target device parameter information table of himself once more, and the routing device of setting up direct communication is defined as interconnecting device, determines routed path with this;
In the 3rd step, existed the route information table of equipment to upgrade;
In already present LAN, if a new equipment adds, the already present equipment of all in the LAN will upgrade its equipment route information table, to add the routing iinformation of new equipment, promptly
That new equipment is directly notified is already present, the direct equipment of communication, has existed equipment to add target device and this equipment is set to interconnecting device, and the route approach be directly arrival, and routing times is 1;
Routing device notice new equipment is reached the standard grade, equipment receive new equipment reach the standard grade notice and upgrade himself equipment route information table after, route information table according to self sends new equipment information to relevant all target devices (not comprising new equipment) simultaneously, and comprising: new equipment information and routing device are to routed path between the target device and routing times;
For example: aforesaid example, new equipment D reaches the standard grade, at first equipment D at first with the equipment C of directly communication notice and release news → C equipment is defined as target device with D equipment, and the route information table of updating the equipment, simultaneously become routing device → C immediately to target device A, B, E sends the D facility information, information comprises: the D facility information, and routing device C is to target device A, B, routed path → A of E, B, after E equipment is received routing device C information, upgrade the equipment route information table of oneself, add target device D, conversion equipment sends to packet the routing device of target device for last.
Be example with target device A again, further specify the renewal of the equipment route information table of device A, routing device C is according to its equipment route information table, obtain C to the routed path of A → calculate routed path: if the routed path in the packet+A equipment → routed path is multiple, then determine multiple routing table, as: target device: D; Interconnecting device: B; Route approach: A-＞B B-＞C C-＞D; Routing times: 2+1=3 time;
The 4th step, the notice that rolls off the production line of wireless device;
As shown in Figure 7, wireless device is as rolling off the production line, then according to its equipment route information table to all target device transmitting apparatus notice that rolls off the production line, the form of the notification data bag that rolls off the production line is: the packet header+source device IP address+target device IP address+notice+hop count that rolls off the production line+verification and+the bag tail
Wherein, the notice that rolls off the production line is a byte, and numerical value is 1;
After target device has notice, will upgrade route list, and delete this wireless device and delete all routed paths relevant with this equipment;
Source device is waited for the return information of all target devices, and the form of return information packet is: packet header+source device IP address+target device IP address+feedback information+hop count+verification and+bag tail,
Wherein, feedback data is a byte, confirms as " 1 ", and mistake occurring is " 0 ";
If the data of feedback information are 0, illustrate mistake to occur that then source device resends the notification data bag that rolls off the production line, and retransmits number of times and is no more than at most 3 times;
At last, this device end and withdrawing from.
The 5th step, regularly inquiry mechanism;
If the situation of unexpected power down takes place in certain equipment, then can not offline information be notified to other equipment by the 4th rapid step by step content, the described escape mechanism of above-mentioned the 4th step content lost efficacy, therefore realization of the present invention is promptly adopted last the 5th step regular inquiry mechanism as described below based on the method for UPNP protocol wireless network routing mechanism behind system initialization;
Each equipment sends Query Information according to the equipment route information table of himself every 10 fens all target devices of clockwise; If feedback is arranged, it is working properly that then proof is given target device; The status poll data packet format is: packet header+source device IP address+target device IP address+status poll+hop count+verification and+bag tail, wherein, byte of status poll data occupancy, numerical value is 1 or 0, correctly is " 1 ", mistake is " 0 ";
If after sending 3 times, inquiry is feedback not still, then proves the power down of this equipment, then this equipment of deletion, and deletion all routed paths relevant with this equipment in equipment route information table, target device parameter information table;
Realization of the present invention is based on the method for UPNP protocol wireless network routing mechanism, finish on the basis of equipment route information table and target device parameter information table in above-mentioned generation or renewal, can carry out transfer of data and feedback information between source device and target device.
Need to determine following transfer process parameter:
1, the selection of target device;
After the target device code name is determined, obtain the IP address and the device description of target device according to target device parameter information table, for route data newspaper structure provides information.
2, the structure of route data packets;
The data of concrete transmission are kept in the route data packets and send; The create-rule of route data packets is that when the equipment utilization routing mechanism sent information, wireless network adopted ICP/IP protocol to realize the Network Transmission of data; Route data packets is the text of TCP/IP bag, and the target ip address in the TCP/IP bag is set to the interconnecting device IP address of source device.
3, optimal path determines;
According to the target device code name, the equipment route information table of query source equipment, the selection algorithm of optimal path is:
The preferential minimum approach of routing times of selecting;
For identical routing times, detecting routing device is mobile device or permanent plant, and mobile device then subtracts 1; Permanent plant then adds 1.Select at last the data maximum as routed path;
If data are also identical, then detect the wireless network bandwidth of the routing device that passes through, the lowest-bandwidth of the routing device in two paths of contrast, and preferentially choose a high road warp of bandwidth;
If also identical, then by the transmitting apparatus picked at random.
4, final interconnecting device determines;
Source device sends information to target device, if can not directly arrive, then needs the forwarding of routing device; Source device sends to packet on the interconnecting device earlier, and source device is not stipulated next interconnecting device, then needs an interconnecting device and determines according to rule;
The selection rule of interconnecting device is as follows:
For the connection of direct arrival, target device is exactly an interconnecting device;
If an interconnecting device is only arranged, then directly adopt;
If a plurality of interconnecting devicies are arranged, this need select best routing procedure according to rule, and the interconnecting device of best routing procedure is optimum interconnecting device.
Realization of the present invention is based on the method for UPNP protocol wireless network routing mechanism, and source device to the flow process that target device carries out the data transmission is:
Source device is determined optimal path and interconnecting device by the equipment route information table, and packet is sent to interconnecting device;
Interconnecting device resolution data bag obtains hop count and destination device address, after the hop count position adds 1, re-constructs packet;
The equipment route information table of this equipment of inquiry obtains the optimal path and the next interconnecting device that arrive target device, and resends this packet;
By that analogy, till arriving target device;
If hop count bit data＞54 o'clock prove that this packet is in the endless loop state in the networking, this moment, routing device abandoned this packet, and sent error message to source device.
Realization of the present invention is based on the method for UPNP protocol wireless network routing mechanism, and the flow process that target device receives data is: the form of route data packets as shown in Figure 1,
Behind the equipment receiving data, judge whether the IP address in the route data packets is the IP address of this equipment;
If then stop forwarding and deal with data;
If not, then continue to transmit.
Claims (8)
1, a kind of method that realizes based on UPNP protocol wireless network routing mechanism, it is characterized in that: described method is that each wireless device in network system generates or renewal is finished on the basis of described equipment route information table and target device parameter information table, carries out transfer of data and feedback information between source device and the target device;
Source device is that source device is determined optimal path and interconnecting device by the equipment route information table, and packet is sent to interconnecting device to the flow process that target device carries out the data transmission;
Interconnecting device resolution data bag obtains hop count and destination device address, after the hop count position adds 1, re-constructs packet;
Inquire about the described equipment route information table that carries out the source device of data transmission, obtain the optimal path and the next interconnecting device that arrive target device, and resend this packet;
By that analogy, till arriving target device;
If hop count bit data＞54 o'clock prove that this packet is in the endless loop state in the networking, this moment, routing device abandoned this packet, and sent error message to source device;
The flow process that target device receives data is behind the equipment receiving data, to judge whether the IP address in the route data packets is the IP address of this equipment;
If then stop forwarding and deal with data;
If not, then continue to transmit.
2, realization according to claim 1 is based on the method for UPNP protocol wireless network routing mechanism, it is characterized in that: the data packet format that sends between described source device and the target device and receive is, packet header+source device IP address+target device IP address+data text+hop count+verification and+the bag tail.
3, realization according to claim 2 is characterized in that based on the method for UPNP protocol wireless network routing mechanism: equipment routing iinformation tableau format is target device+interconnecting device+routed path+routing times;
Target device parameter information tableau format is target device code name+target device IP address+target device attribute+target device explanation.
4, realization according to claim 3 is characterized in that based on the method for UPNP protocol wireless network routing mechanism: after a described source device enters network, generate or update the equipment route information table and target device parameter information table by following flow process,
The first step, the IP address assignment that newly enters the equipment of network;
In second step, newly enter the equipment route information table of equipment of network and the generation of target device parameter information table;
Before entering network, the route information table of this equipment and target device parameter information table are empty;
Enter behind the network according to the UPNP agreement, with the form of broadcasting information to network issue oneself;
After other equipment obtain broadcast message, upgrade the equipment route information table of oneself, the IP address of writing down this equipment, this equipment and be set to interconnecting device, route approach for directly arriving; Simultaneously for issuing this equipment feedback information of broadcasting;
The equipment of issue broadcast message is according to the equipment route information table and the target device parameter information table of feedback information renewal self;
The equipment of issue broadcast message is given an order, the equipment route information table of the equipment of subscription feedback information and the attribute of target device;
Subscribed equipment Returning equipment route information table, with and the attribute of equipment;
Source device upgrades equipment route information table and the target device parameter information table of himself once more, and the routing device of setting up direct communication is defined as forwarding unit, determines routed path with this;
In the 3rd step, there has been the renewal of the equipment route information table and the target device parameter information table of equipment;
In the 4th step,, then send the notice that rolls off the production line to other equipment if there is any wireless device to roll off the production line;
If the situation of unexpected power down takes place in certain equipment, then can not offline information be notified to other equipment by the 4th rapid step by step content, the described escape mechanism of above-mentioned the 4th step content lost efficacy;
After the described network system initialization, promptly move regular inquiry mechanism.
5, realization according to claim 4 is based on the method for UPNP protocol wireless network routing mechanism, it is characterized in that: determining or upgrading in the described equipment route information table, if two directly communications of wireless device, then do not need the routing device support, routed path from source device directly to target device; Can not directly arrive, then need to determine routed path, set routed path must meet the following conditions, be in every routed path repeated plant to be arranged, per two directly communications of transit route equipment, then do not need the third party device switching, first routing device of every paths is a forwarding unit.
6, realization according to claim 5 is based on the method for UPNP protocol wireless network routing mechanism, it is characterized in that: the roll off the production line data packet format of notice of described wireless device is, the packet header+source device IP address+target device IP address+notice+hop count that rolls off the production line+verification and+wrap tail;
After described target device has notice, will upgrade route list, and delete this wireless device and delete all routed paths relevant with this equipment;
Described source device is waited for the return information of all target devices, and the form of return information packet is: packet header+source device IP address+target device IP address+feedback information+hop count+verification and+bag tail.
7, realization according to claim 6 is based on the method for UPNP protocol wireless network routing mechanism, it is characterized in that: after the wireless system initialization, promptly implement regular inquiry mechanism, each equipment is according to the equipment route information table of himself, send Query Information to all target devices at set intervals, the status poll data packet format be packet header+source device IP address+target device IP address+status poll+hop count+verification and+the bag tail.
8, realization according to claim 7 is characterized in that based on the method for UPNP protocol wireless network routing mechanism: the data of concrete transmission are kept in the route data packets and send; The create-rule of route data packets is that when the equipment utilization routing mechanism sent information, wireless network adopted ICP/IP protocol to realize the Network Transmission of data; Route data packets is the text of TCP/IP bag, and the target ip address in the TCP/IP bag is set to the interconnecting device IP address of source device.
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| CNB2003101057831A CN1311666C (en) | 2003-12-01 | 2003-12-01 | Method for realizing route mechanism based on UPNP protocal radio network |
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| CN101132364B (en) * | 2007-08-23 | 2012-02-29 | 新动力(北京)建筑科技有限公司 | Data addressing and repeating method and system in control network |
| CN101610487B (en) * | 2009-07-20 | 2012-05-23 | 中兴通讯股份有限公司 | Message delivering method used for telecommunication network and device |
| CN102957568B (en) * | 2012-11-21 | 2016-06-29 | 浪潮电子信息产业股份有限公司 | A kind of method for managing and monitoring of multi node server |
| CN103281242B (en) * | 2013-06-19 | 2016-04-13 | 迈普通信技术股份有限公司 | protocol stack routing table maintenance method and device |
| CN112104496B (en) * | 2020-09-10 | 2023-06-23 | 中国电力科学研究院有限公司 | Universal substation IED self-discovery and self-configuration method and device based on UPnP |
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| WO2003003658A1 (en) * | 2001-06-29 | 2003-01-09 | Koninklijke Philips Electronics N.V. | AUDIO-VIDEO MANAGEMENT IN UPnP |
| WO2003019864A2 (en) * | 2001-08-22 | 2003-03-06 | Thomson Licensing Sa | Method for bridging a upnp network and a havi network |
| US20030140344A1 (en) * | 2002-01-21 | 2003-07-24 | Ghulam Bhatti | Wireless control for universal plug and play networks and devices |
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| WO2003003658A1 (en) * | 2001-06-29 | 2003-01-09 | Koninklijke Philips Electronics N.V. | AUDIO-VIDEO MANAGEMENT IN UPnP |
| WO2003019864A2 (en) * | 2001-08-22 | 2003-03-06 | Thomson Licensing Sa | Method for bridging a upnp network and a havi network |
| US20030140344A1 (en) * | 2002-01-21 | 2003-07-24 | Ghulam Bhatti | Wireless control for universal plug and play networks and devices |
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