CN109618321A - A kind of bluetooth Mesh network Transmission system and method realized based on routing table - Google Patents
A kind of bluetooth Mesh network Transmission system and method realized based on routing table Download PDFInfo
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- CN109618321A CN109618321A CN201910097502.3A CN201910097502A CN109618321A CN 109618321 A CN109618321 A CN 109618321A CN 201910097502 A CN201910097502 A CN 201910097502A CN 109618321 A CN109618321 A CN 109618321A
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- node
- routing table
- mesh network
- bluetooth mesh
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/246—Connectivity information discovery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/248—Connectivity information update
Abstract
The present invention discloses a kind of bluetooth Mesh network Transmission system and method realized based on routing table, and bluetooth Mesh network includes several nodes in the Transmission system, and each node includes a routing table, which saves nodal information near present node；When a certain node receives message from bluetooth Mesh network, destination node is parsed, if current routing table includes destination node information, present node directly transmits the message to destination node, realizes that the bluetooth Mesh network is communicated based on routing table.The purpose of the present invention is modifying bluetooth Mesh algorithm, routing table is added on this basis, realizes the bluetooth Mesh transmission based on routing table, the repeated data reduced in network can be reached, improve the purpose of network communication validity.
Description
Technical field
The present invention relates to wireless communication technique field, in particular to a kind of bluetooth Mesh network realized based on routing table is passed
Defeated system.
Background technique
With the continuous popularization of bluetooth Mesh and popularizing for Internet of Things, more and more internet of things equipment begin to use bluetooth
Mesh carries out networking and communication.Bluetooth Mesh is using Flooding method, in the network of this method, each node now
The resource of other nodes is not known；In data communication process, node is all the data that it is received by broadcast forwarding, when two
Between a node distance farther out when, intermediate node needs continuous level-one level-one broadcast data, finally gets to destination node.But
It is that Flooding mode will lead to and be flooded with a large amount of duplicate data in network, Internet resources is occupied, so that node itself consumes
Big energy.
Based on the prior art, there are network transmissions there are a large amount of Data duplication, occupies Internet resources and validity is not strong
The problems such as, the present invention proposes therefrom.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of bluetooth Mesh network transmission realized based on routing table
System and method.
To achieve the above object, the specific technical solution of the present invention is as follows:
A kind of bluetooth Mesh network Transmission system realized based on routing table, bluetooth Mesh network includes several in the system
Node, each node include a routing table, which saves nodal information near present node；When a certain node is from indigo plant
When tooth Mesh network receives message, destination node is parsed, if current routing table includes destination node information, present node is straight
It connects and transmits the message to destination node, realize that the bluetooth Mesh network is communicated based on routing table.
As an optimal technical scheme of the invention, the routing table is designed as the List constituted by i K barrels, in the List
The nodal information of storage includes:
NODE ID: node unique ID value；
ADDR: the node address that bluetooth Mesh network uses when communicating；
NID: bluetooth Mesh network identification code, for identification different network；
TTL: message number of hops can reflect the time to live of message；
Wherein, i is integer, and 0≤i≤8.
As an optimal technical scheme of the invention, all routing tables are initialized when network is begun setting up, and save energy
Reach the every other nodal information of this node.
As an optimal technical scheme of the invention, the update mechanism of the routing table is as follows:
Receive the online broadcast message of node:
(1) judge that the node whether there is in the routing table of local node, if then the node is moved on to K barrels of tail
Portion continues to execute if not；
(2) judge whether the number of nodes in routing table reaches maximum value, if it is not, directly node is inserted into K barrels of tail
Portion；If so, starting test node；
(3) whether the head node, of tested K bucket is effective, if so, ignoring broadcast message；If it is not, K barrels of head node ,s are removed,
New node is inserted into K barrels of tail portion.
As an optimal technical scheme of the invention, the validity of each routing table interior joint information of the system administration includes following
Two kinds of situations:
(1) node is online
A, node is increased newly into bluetooth Mesh network；
B, new node sends online broadcast to bluetooth Mesh network；
C, its neighbouring node receives the broadcast message of new node；
D, the routing table of local node is updated according to routing table update process；
E, terminate；
(2) node removes
The node broadcasts online message in routing table is detected, whether judgement within a specified time detects nodal information, if
It can continue to detect；If it is not, deleting corresponding node from routing table, and continue to detect other nodes.
The present invention also provides the transmission method of above-mentioned Transmission system, which includes several nodes, Mei Yijie
Point includes a routing table, which saves nodal information near present node；The transmission method of each node includes such as
Lower step:
S1, node receive message from bluetooth Mesh network；
Whether S2, the node can recognize that the NID code (Network ID) of the message, if it is not, directly ignoring；If then into
Enter in next step；
S3, message destination node whether in the routing table of local node, if so, information is directly issued the node；
If it is not, continuing to execute；
S4, message ttl value (message hop count) whether be less than or equal to 0, if so, execute ignore；If it is not, continuing to execute；
S5, effective node is obtained from routing table, forward the message in these nodes.
Using technical solution of the present invention, have the advantages that
The purpose of the present invention is modifying bluetooth Mesh algorithm, routing table is added on this basis, realizes based on routing table
Bluetooth Mesh Transmission system can reach the repeated data reduced in network, improve the purpose of network communication validity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of routing table in the present invention；
Fig. 2 is routing table update schematic diagram in the present invention；
Fig. 3 is the online schematic diagram of interior joint of the present invention；
Fig. 4 is that interior joint of the present invention removes schematic diagram；
Fig. 5 is data transmission principle figure in the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Referring to figs. 1 to shown in Fig. 5, the present invention provides a kind of bluetooth Mesh network Transmission system realized based on routing table,
Bluetooth Mesh network includes several nodes in the system, and each node includes a routing table, which saves present node
Near nodal information；When a certain node receives message from bluetooth Mesh network, destination node is parsed, if current routing
Table includes destination node information, and present node directly transmits the message to destination node, realizes that the bluetooth Mesh network is based on road
It is communicated by table.
Specifically, the design of the Transmission system includes following aspect:
One, routing table designs
All routing tables are initialized when network is begun setting up, and save the every other node letter that can reach this node
Breath.The routing table is designed as the List constituted by i K barrels, and the nodal information stored in the List includes:
NODE ID: node unique ID value；
ADDR: the node address that bluetooth Mesh network uses when communicating；
NID: bluetooth Mesh network identification code, for identification different network；
TTL: message number of hops can reflect the time to live of message；
Wherein, i is integer, and 0≤i≤8.
Specifically, the design principle of routing table is as follows:
Routing table design is designed by the way of similar DHT, and one routing table of each node maintenance, which is by more
The list of a (0≤i < 8) K barrels of compositions, and beginning setting up in network is to be initialized.In network initialization procedure, section
Point is found and is obtained nodal information by broadcast data to initialize routing table, and routing table, which can save, as a result, can reach this node
Every other node routing iinformation.Routing table supports update mechanism, according to the node road in the real-time increase-decrease plan of node state
By information, routing table can at most save the routing iinformation of 2^8 node, and can be reached in practical Mesh network this node its
His neighbor node data are much less more.In Mesh communication, the transmission and forwarding of data can be based on the roads in the routing table
It is carried out by node, routing table is as shown in Figure 1.
Two, routing table update mechanism
Correct update of routing table is the foundation that guarantees bluetooth Mesh network and can work normally.In distributed network often
There is node to be added or remove, while being also possible to the case where node exception occur and leading to node failure；In this regard, node needs
Support the routing table update mechanism of newly-increased node, removal node and node failure judgement in real time.It is protected by routing table update mechanism
Demonstrate,prove the last state of node route list interior joint information.Its more new technological process as shown in Fig. 2, the update mechanism of the routing table such as
Under:
Receive the online broadcast message of node:
(1) judge that the node whether there is in the routing table of local node, if then the node is moved on to K barrels of tail
Portion continues to execute if not；
(2) judge whether the number of nodes in routing table reaches maximum value, if it is not, directly node is inserted into K barrels of tail
Portion；If so, starting test node；
(3) whether the head node, of tested K bucket is effective, if so, ignoring broadcast message；If it is not, K barrels of head node ,s are removed,
New node is inserted into K barrels of tail portion.
Three, node administration
Node administration belongs to distributed management mode, i.e., the node state in each node administration itself routing table and effectively
Property, the process flow that when increase and decrease and node exception of corresponding node is made.Its main purpose is maintenance routing table interior joint
Validity, provide communication for Mesh network and guarantee, the process being related to includes that node is online and node removes and fails.
With reference to Fig. 3 to Fig. 4, specifically, the validity of each routing table interior joint information of the system administration includes following two
Situation:
(1) node is online
A, node is increased newly into bluetooth Mesh network；
B, new node sends online broadcast to bluetooth Mesh network；
C, its neighbouring node receives the broadcast message of new node；
D, the routing table of local node is updated according to routing table update process；
E, terminate.
(2) node removes
The node broadcasts online message in routing table is detected, whether judgement within a specified time detects nodal information, if
It can continue to detect；If it is not, deleting corresponding node from routing table, and continue to detect other nodes.
Four, data are transmitted
With reference to Fig. 5, the present invention also provides the transmission method of above-mentioned Transmission system, which includes several sections
Point, each node include a routing table, which saves nodal information near present node；The transmission side of each node
Method includes the following steps:
S1, node receive message from bluetooth Mesh network；
Whether S2, the node can recognize that the NID code (Network ID) of the message, if it is not, directly ignoring；If then into
Enter in next step；
S3, message destination node whether in the routing table of local node, if so, information is directly issued the node；
If it is not, continuing to execute；
S4, message ttl value (message hop count) whether be less than or equal to 0, if so, execute ignore；If it is not, continuing to execute；
S5, effective node is obtained from routing table, forward the message in these nodes.
Existing bluetooth Mesh is based on manageable flood (Flooding) message transmission mode, which uses broadcast
Channel carries out data transmission.The present invention compared with prior art, has following technical advantage:
(1), it joined routing table in Mesh network, the node of Mesh network management can be facilitated, and can be formed
Clear network communication topological diagram；
(2), node can guarantee the validity of routing table node with real-time update routing table interior joint information；
(3), using data mechanism is sent and forwarded based on routing table, compared to former scheme broadcast transmission mode, hair is reduced
It send the quantity of packet and improves the validity for sending data；
(4), a possibility that reducing network congestion to a certain extent.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of bluetooth Mesh network Transmission system realized based on routing table, bluetooth Mesh network includes several sections in the system
Point, it is characterised in that:
Each node includes a routing table, which saves nodal information near present node；When a certain node is from indigo plant
When tooth Mesh network receives message, destination node is parsed, if current routing table includes destination node information, present node is straight
It connects and transmits the message to destination node, realize that the bluetooth Mesh network is communicated based on routing table.
2. the bluetooth Mesh network Transmission system according to claim 1 realized based on routing table, which is characterized in that described
Routing table is designed as the List constituted by i K barrels, and the nodal information stored in the List includes:
NODE ID: node unique ID value；
ADDR: the node address that bluetooth Mesh network uses when communicating；
NID: bluetooth Mesh network identification code, for identification different network；
TTL: message number of hops can reflect the time to live of message；
Wherein, i is integer, and 0≤i≤8.
3. the bluetooth Mesh network Transmission system according to claim 2 realized based on routing table, which is characterized in that all
Routing table is initialized when network is begun setting up, and saves the every other nodal information that can reach this node.
4. the bluetooth Mesh network Transmission system according to claim 3 realized based on routing table, which is characterized in that described
The update mechanism of routing table is as follows:
Receive the online broadcast message of node:
(1) judge that the node whether there is in the routing table of local node, if then the node is moved on to K barrels of tail portion, if
It is no to continue to execute；
(2) judge whether the number of nodes in routing table reaches maximum value, if it is not, directly node is inserted into K barrels of tail portion；If
It is to start test node；
(3) whether the head node, of tested K bucket is effective, if so, ignoring broadcast message；If it is not, K barrels of head node ,s are removed, new
Node is inserted into K barrels of tail portion.
5. the bluetooth Mesh network Transmission system according to claim 4 realized based on routing table, which is characterized in that this is
The validity of each routing table interior joint information of reason under the overall leadership includes following two situation:
(1) node is online
A, node is increased newly into bluetooth Mesh network；
B, new node sends online broadcast to bluetooth Mesh network；
C, its neighbouring node receives the broadcast message of new node；
D, the routing table of local node is updated according to routing table update process；
E, terminate；
(2) node removes
The node broadcasts online message in routing table is detected, whether judgement within a specified time detects nodal information, if can be after
Continuous detection；If it is not, deleting corresponding node from routing table, and continue to detect other nodes.
6. a kind of bluetooth Mesh network transmission method realized based on routing table, it is characterised in that: the bluetooth Mesh network includes
Several nodes, each node include a routing table, which saves nodal information near present node；Each node
Transmission method includes the following steps:
S1, node receive message from bluetooth Mesh network；
Whether S2, the node can recognize that the NID code of the message, if it is not, directly ignoring；If then entering in next step；
S3, message destination node whether in the routing table of local node, if so, information is directly issued the node；If it is not,
It continues to execute；
S4, message ttl value whether be less than or equal to 0, if so, execute ignore；If it is not, continuing to execute；
S5, effective node is obtained from routing table, forward the message in these nodes.
7. the bluetooth Mesh network Transmission system according to claim 6 realized based on routing table, which is characterized in that described
Routing table is designed as the List constituted by i K barrels, and the nodal information stored in the List includes:
NODE ID: node unique ID value；
ADDR: the node address that bluetooth Mesh network uses when communicating；
NID: bluetooth Mesh network identification code, for identification different network；
TTL: message number of hops can reflect the time to live of message；
Wherein, i is integer, and 0≤i≤8.
8. the bluetooth Mesh network Transmission system according to claim 7 realized based on routing table, which is characterized in that all
Routing table is initialized when network is begun setting up, and saves the every other nodal information that can reach this node.
9. the bluetooth Mesh network Transmission system according to claim 8 realized based on routing table, which is characterized in that described
The update mechanism of routing table is as follows:
Receive the online broadcast message of node:
(1) judge that the node whether there is in the routing table of local node, if then the node is moved on to K barrels of tail portion, if
It is no to continue to execute；
(2) judge whether the number of nodes in routing table reaches maximum value, if it is not, directly node is inserted into K barrels of tail portion；If
It is to start test node；
(3) whether the head node, of tested K bucket is effective, if so, ignoring broadcast message；If it is not, K barrels of head node ,s are removed, new
Node is inserted into K barrels of tail portion.
10. the bluetooth Mesh network Transmission system according to claim 6 realized based on routing table, which is characterized in that should
The validity of each routing table interior joint information of system administration includes following two situation:
(1) node is online
A, node is increased newly into bluetooth Mesh network；
B, new node sends online broadcast to bluetooth Mesh network；
C, its neighbouring node receives the broadcast message of new node；
D, the routing table of local node is updated according to routing table update process；
E, terminate；
(2) node removes
The node broadcasts online message in routing table is detected, whether judgement within a specified time detects nodal information, if can be after
Continuous detection；If it is not, deleting corresponding node from routing table, and continue to detect other nodes.
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Cited By (10)
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| CN110933730A (en) * | 2019-11-27 | 2020-03-27 | 美的集团股份有限公司 | Method and device for determining survival time value of multi-hop network node |
| CN110944314A (en) * | 2019-12-06 | 2020-03-31 | 广东博智林机器人有限公司 | BLE cascade network and link routing method and device thereof |
| CN111417165A (en) * | 2020-04-01 | 2020-07-14 | 南通大学 | Bluetooth Mesh energy efficiency routing method based on awakening time prediction |
| CN111542030A (en) * | 2020-04-21 | 2020-08-14 | 深圳市中科蓝讯科技股份有限公司 | Optimal TTL value calculation method of Bluetooth Mesh, system thereof and computer readable storage medium |
| WO2020177580A1 (en) * | 2019-03-06 | 2020-09-10 | 乐鑫信息科技（上海）股份有限公司 | Method for processing data packets at node in bluetooth mesh network |
| CN111711941A (en) * | 2020-04-30 | 2020-09-25 | 杭州涂鸦信息技术有限公司 | Data transmission method and related equipment and device |
| CN111742505A (en) * | 2019-12-16 | 2020-10-02 | 深圳市汇顶科技股份有限公司 | Method for testing low-power-consumption Bluetooth BLE product and BLE device |
| CN111770061A (en) * | 2020-06-02 | 2020-10-13 | 西安极蜂天下信息科技有限公司 | Conference demonstration method, device and system |
| CN111786871A (en) * | 2020-06-05 | 2020-10-16 | 厦门阳光物联科技有限公司 | Bluetooth MESH different network data transmission method |
| CN115150801A (en) * | 2022-09-05 | 2022-10-04 | 北京联盛德微电子有限责任公司 | Inter-node communication method and system based on Bluetooth Mesh network |
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|---|---|---|---|---|
| WO2020177580A1 (en) * | 2019-03-06 | 2020-09-10 | 乐鑫信息科技（上海）股份有限公司 | Method for processing data packets at node in bluetooth mesh network |
| CN110933730A (en) * | 2019-11-27 | 2020-03-27 | 美的集团股份有限公司 | Method and device for determining survival time value of multi-hop network node |
| CN110944314A (en) * | 2019-12-06 | 2020-03-31 | 广东博智林机器人有限公司 | BLE cascade network and link routing method and device thereof |
| CN111742505B (en) * | 2019-12-16 | 2022-07-19 | 深圳市汇顶科技股份有限公司 | Method for testing low-power-consumption Bluetooth BLE product and BLE device |
| CN111742505A (en) * | 2019-12-16 | 2020-10-02 | 深圳市汇顶科技股份有限公司 | Method for testing low-power-consumption Bluetooth BLE product and BLE device |
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| CN111417165B (en) * | 2020-04-01 | 2023-01-24 | 南通大学 | Bluetooth Mesh energy efficiency routing method based on awakening time prediction |
| CN111542030A (en) * | 2020-04-21 | 2020-08-14 | 深圳市中科蓝讯科技股份有限公司 | Optimal TTL value calculation method of Bluetooth Mesh, system thereof and computer readable storage medium |
| CN111711941A (en) * | 2020-04-30 | 2020-09-25 | 杭州涂鸦信息技术有限公司 | Data transmission method and related equipment and device |
| CN111711941B (en) * | 2020-04-30 | 2023-10-24 | 杭州涂鸦信息技术有限公司 | Data transmission method, related equipment and device |
| CN111770061A (en) * | 2020-06-02 | 2020-10-13 | 西安极蜂天下信息科技有限公司 | Conference demonstration method, device and system |
| CN111786871A (en) * | 2020-06-05 | 2020-10-16 | 厦门阳光物联科技有限公司 | Bluetooth MESH different network data transmission method |
| CN111786871B (en) * | 2020-06-05 | 2022-03-01 | 厦门阳光恩耐照明有限公司 | Bluetooth MESH different network data transmission method |
| CN115150801A (en) * | 2022-09-05 | 2022-10-04 | 北京联盛德微电子有限责任公司 | Inter-node communication method and system based on Bluetooth Mesh network |
| CN115150801B (en) * | 2022-09-05 | 2022-12-23 | 北京联盛德微电子有限责任公司 | Inter-node communication method and system based on Bluetooth Mesh network |
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Application publication date: 20190412 |