CN106604212A - Mesh networking method based on BLE attribute and GATT - Google Patents

Mesh networking method based on BLE attribute and GATT Download PDF

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Publication number
CN106604212A
CN106604212A CN201611189929.9A CN201611189929A CN106604212A CN 106604212 A CN106604212 A CN 106604212A CN 201611189929 A CN201611189929 A CN 201611189929A CN 106604212 A CN106604212 A CN 106604212A
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mesh
ble
node
gatt
data
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CN201611189929.9A
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CN106604212B (en
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苏肖龙
张朋
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Shenzhen Northmeter Co Ltd
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Shenzhen Northmeter Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H04W16/20—Network planning tools for indoor coverage or short range network deployment
    • 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
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a mesh networking method based on BLE (Bluetooth Low Energy) attribute and GATT (Generic Attribute Profile). The method involves a plurality of BLE devices, and each BLE device includes a GATT. A mesh service is added by adding a mesh layer to the GATT, and the mesh service conforms to the rules of the GATT. The method comprises the following steps: starting networking; building first-level paths; building second-level paths; and completing networking. The existing BLE devices can be connected to a mesh network directly without any setting or change, and a mesh network of BLEs is achieved. Devices beyond the Bluetooth radio frequency range can communicate and interact with each other by means of relaying through other Bluetooth devices. Through a mesh network, a user can control a lot of BLE devices at the same time through one access point.

Description

It is a kind of based on BLE attributes and the mesh network-building methods of GATT
Technical field
The present invention relates to a kind of based on BLE attributes and the mesh network-building methods of GATT.
Background technology
BLE（Bluetooth low energy）Define GATT（Generic Atribute profile）Agreement, leads to Cross client (client) and find, configure and read and write server（server）Each attribute（attribute）Mode realize directly Connect the control between bluetooth equipment and data transfer.
BLE is that bluetooth 4.0 in 2010 is released, and present latest edition is the bluetooth 4.2 in December, 2014.Existing market is Jing has the peripheral hardwares such as bracelet, wrist-watch, pedometer, anti-loss device, the smart home of a large amount of built-in BLE, while essentially all of intelligent handss Machine is all configured with bluetooth.User directly can be carried out with these bluetooth peripheral hardwares using support BLE handheld devices by GATT agreements Interaction, but the BLE agreements of prior art do not support mesh networks.
Drawbacks described above, is worth solving.
The content of the invention
In order to overcome the shortcomings of existing technology, the present invention provides a kind of based on BLE attributes and the mesh networking sides of GATT Method.
Technical solution of the present invention is as described below：
It is a kind of based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that including several BLE equipment, the BLE Equipment includes GATT, and mesh services are added by way of increasing mesh layers newly on the GATT, and the mesh services meet GATT protocol rules.
Further, comprise the following steps：
A, unlatching networking：Band networking device power-up and enter can connection mode, the cycle sends broadcast, and user is by button, touch screen And man-machine certain BLE equipment with mesh protocol stacks of interactive selection is ordered as mesh networking root nodes, and networking is initiated, Root node is by button, touch screen, order and Quick Response Code mode input record other equipment id, PIN code network authentication parameters；
B, structure one-level path：BLE equipment near root node scanning, and select some neighbours BLE equipment, prioritizing selection not to add Network and equipment with mesh protocol stacks, according to parameters for authentication binding authentication and set up GATT and connect, as next stage road By nodes records in the routing table；
C, structure second grade highway footpath：It is grade 1 that the mesh equipment of new addition network records oneself, scans and connect next stage route section Point, while recording and uploading its routing table to even higher level of node, is then recorded as without the BLE equipment of mesh agreements by routing node Leaf node；
D, networking are completed：Recursion step c is until neighbouring all connectable devices all add mesh networks.
Further, entry includes address, gateway, default gateway and grade point, routing node in the routing table Even higher level of node be default gateway, other neighbor nodes be common gateway, the node routing information reported by neighbor node It is recorded as common gateway.
Further, the selection mode of the route is that destination address is inquired about from routing table, is existed, and is selected belonging to it Gateway is relay address, is not existed, and is transmitted to default route, that is, be transmitted to even higher level of node.
Further, when mesh networks increase oil (gas) filling device newly, routing node scans to new equipment and establishes a connection certification Success, then be added to its routing table and report path；During mesh network sweep equipments, routing node detects neighbor node It is unavailable, then its routing iinformation, and other node routing informations with it as gateway are deleted, if the node is default gateway, Its downlink network is then dismissed, route is rebuild and is added mesh.
Further, BLE mesh flow chart of data processing includes writing data, read data and reading data returning.
Further, the step of write data are as follows：
A, write data requests；
B, judge destination address whether oneself, if so, then target service data write；If it is not, then down proceeding；
C, judge destination address whether immediate neighbor, if so, then to neighbours write target service data；If it is not, then down continuing Carry out；
D, Route Selection next stage via node；
E, to via node write mesh forwarding service data；
F, write data and complete.
Further, the step of reading data are as follows：
A, read data request；
B, judge destination address whether oneself, if so, then target service data reads；If it is not, then down proceeding；
C, judge destination address whether immediate neighbor, if so, then to neighbours read target service data；If it is not, then down continuing Carry out；
D, Route Selection next stage via node；
E, to via node write read data parameters；
F, the reading data returning result for receiving via node；
G, reading data are completed.
Further, the step of reading data are returned is as follows：
A, reading data are returned；
B, request is judged whether from mesh services, if it is not, then result returns to application layer；If so, then down proceed；
C, the next stage via node in routing request source；
D, to via node write read data return parameterss；
E, reading data are completed.
According to the present invention of such scheme, its advantage is, the present invention it goes without doing any setting and change just can be with Directly existing BLE equipment is accessed into mesh networks, realize the mesh networks of BLE so that more than setting for Bluetooth RF distance Standby to realize communication interaction by way of other bluetooth equipments are relayed, by mesh networks, user can be connect by one Access point controls substantial amounts of BLE equipment simultaneously.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the frame diagram of the BLE mesh main services of the present invention；
Fig. 3 is that the BLE mesh Data processings of the present invention write data flow diagram；
Fig. 4 is the BLE mesh Data processing time data stream journey schematic diagrams of the present invention；
Fig. 5 is that the BLE mesh Data processings of the present invention read data Returning process schematic diagram；
Fig. 6 is the unlatching networking schematic diagram of the present invention；
Fig. 7 is the structure one-level path schematic diagram of the present invention；
Fig. 8 is the structure second grade highway footpath schematic diagram of the present invention；
Fig. 9 is that the networking of the present invention completes schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is conducted further description to the present invention：
As Figure 1-5, it is a kind of based on BLE attributes and the mesh network-building methods of GATT, including several BLE equipment, BLE equipment Including GATT, mesh services are added by way of increasing mesh layers newly on GATT, mesh services meet GATT protocol rules.Cause This does not have other areas for remote equipment, outside the mesh service functions between mesh equipment and common BLE equipment except for an additional Not, so as to ensure that the compatibility of equipment.
BLE intelligent terminal asks the data, services of distal end BLE sensors by mesh network agents in the present invention, wherein Mesh networks are made up of several BLE equipment with mesh agreements, and these equipment are also in itself that data, services provide equipment, but The equipment for not requiring all accessible mesh networks all supports mesh agreements.Therefore there is the applied field of some BLE equipment at one Some is only needed in scape and supports mesh agreements, it is possible to which all BLE equipment are accessed into mesh networks.
BLE mesh application interfaces include：
public BLEmeshInterface{
void init(param)；
void broadcast(data)；
addrList* neighborList()；
svc* serviceFind(addr)；
int serviceRead(addr,svcUuid,charaUuid,param,data)；
int serviceWrite(addr,svcUuid,charaUuid,data)；
}；
Init Initialize installation mesh networks；
Broadcast is used for data broadcasting；
NeighoborList is used to obtain the neighboring device information of mesh networks；
ServiceFind is used to obtain the GATT service functions of remote equipment；
ServiceRead reading service data, can carry out the operation such as data acquisition；
ServiceWrite write service data, can carry out the operation such as parameter configuration.
BLE mesh services include MESH_WRITE, MESH_READ_REQ, MESH_READ_RSP, MESH_SERVICE_ FIND、MESH_ROUTINE_REPORT、MESH_BROADCAST、MESH_PING；
MESH_WRITE：It is writeable, data are write by mesh networks；
MESH_READ_REQ：It is readable writeable, the parameter of data is read by mesh networks；
MESH_READ_RSP：It is readable writeable, data returning result is read by mesh networks；
MESH_SERVICE_FIND：It is readable writeable, service discovery is initiated to non-straight attached device by mesh networks；
MESH_ROUTINE_REPOR：It is writeable, for mesh network operations；
MESH_BROADCAST：It is writeable, broadcast data；
MESH_PING：It is readable, network connection test.
BLE mesh flow chart of data processing includes writing data, read data and reading data returning.
When mesh agreements receive read-write requests service, first determine whether whether destination address is its immediate neighbor, if it is, According to the interactive mode of common BLE equipment as GATT clients directly to the corresponding Service Properties of target device GATT servers Carry out reading and writing data request.If it is not, then by mesh routing addressing next stage via nodes, and using read-write requests as ginseng Number is sent to its corresponding mesh Service Properties.Via node is received after mesh service requests, the addressing before meeting recurrence The destination address of Cheng Zhizhi service requests is its immediate neighbor or routing failure, so as to complete a complete data transfer mistake Journey.The step of writing data is as follows：
A, write data requests；
B, judge destination address whether oneself, if so, then target service data write；If it is not, then down proceeding；
C, judge destination address whether immediate neighbor, if so, then to neighbours write target service data；If it is not, then down continuing Carry out；
D, Route Selection next stage via node；
E, to via node write mesh forwarding service data（MESH_WRITE)；
F, write data and complete.
The step of reading data is as follows：
A, read data request；
B, judge destination address whether oneself, if so, then target service data reads；If it is not, then down proceeding；
C, judge destination address whether immediate neighbor, if so, then to neighbours read target service data；If it is not, then down continuing Carry out；
D, Route Selection next stage via node；
E, to via node write read data parameters（MESH_READ_REQ)；
F, the reading data returning result for receiving via node（MESH_READ_RSP）；
G, reading data are completed.
Read the step of data are returned as follows：
A, reading data are returned；
B, request is judged whether from mesh services, if it is not, then result returns to application layer；If so, then down proceed；
C, the next stage via node in routing request source；
D, to via node write read data return parameterss（MESH_READ_RSP)；
E, reading data are completed.
As Figure 6-9, it is of the invention to comprise the following steps that：
1st, band networking device power-up and enter can connection mode, the cycle send broadcast.User is by button, touch screen, order et al. Certain BLE equipment with mesh protocol stacks of machine interactive selection initiates networking as mesh networkings root node, and passes through in root node The network authentication parameters such as mode input record other equipment id such as button, touch screen, order, Quick Response Code, PIN code.
2nd, BLE equipment near root node scanning, and some neighbours BLE equipment are selected, prioritizing selection does not add network and band The equipment of mesh protocol stacks, according to parameters for authentication binding authentication and set up GATT connection, as next stage routing node note Record is in the routing table.
3rd, it is grade 1 that the mesh equipment of new addition network records oneself, next stage routing node is scanned and connect, while note Record simultaneously uploads its routing table to even higher level of node, is then leaf node by mesh nodes records without the BLE equipment of mesh agreements.
4th, recursion step 3 is until neighbouring all connectable devices all add mesh networks.
Routing table storage mode wherein of the invention：Entry includes address and gateway in routing table, mesh nodes Even higher level of node is default gateway, and other neighbor nodes are common gateway, and the node routing information reported by neighbor node is remembered Record as this gateway.The routing table information of node B such as following table：
Address Gateway Default gateway Grade point Road strength length
A A A 0 0
C C A 1 1
D D A 2 1
E E A 2 1
F E A 3 2
G E A 3 2
The Route Selection mode of the present invention：Destination address is inquired about from routing table, is existed, select its affiliated gateway for relaying ground Location, is not present, and is transmitted to default route（Even higher level of node）, for example：Number is transmitted to ordinary node C by routing node B According to routing node B is transmitted directly to ordinary node C；By routing node B to ordinary node G transmission datas, then gateway E is selected As via node forwarding.
The network update mode of the present invention：When mesh networks increase oil (gas) filling device newly, routing node scanning arrives new equipment simultaneously and it Connection certification success is set up, is then added to its routing table and is reported path；During mesh network sweep equipments, routing node is detectd Measure neighbor node unavailable, then its routing iinformation, and other node routing informations with it as gateway are deleted, if the section Point is default gateway, then dismiss its downlink network, rebuilds route and adds mesh networks.
The present invention it goes without doing it is any setting and change just can directly by existing BLE equipment access mesh networks, realization The mesh networks of BLE so that can realize by way of other bluetooth equipments are relayed more than the equipment of Bluetooth RF distance Communication interaction, by mesh networks, user can simultaneously control substantial amounts of BLE equipment by an access point, control BLE equipment Quantity in theory be more than 10000.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or be converted, And all these modifications and variations should all belong to the protection domain of claims of the present invention.
Exemplary description is carried out to patent of the present invention above in conjunction with accompanying drawing, it is clear that the realization of patent of the present invention is not received The restriction of aforesaid way, if the various improvement that the method design of patent of the present invention and technical scheme are carried out are employed, or without The design of patent of the present invention and technical scheme are directly applied to other occasions by improvement, within the scope of the present invention.

Claims (9)

1. it is a kind of based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that described including several BLE equipment BLE equipment includes GATT, and mesh services are added by way of increasing mesh layers newly on the GATT, and the mesh services meet GATT protocol rules.
2. it is according to claim 1 based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that including following Step：
A, unlatching networking：Band networking device power-up and enter can connection mode, the cycle sends broadcast, and user is by button, touch screen And man-machine certain BLE equipment with mesh protocol stacks of interactive selection is ordered as mesh networking root nodes, and networking is initiated, Root node is by button, touch screen, order and Quick Response Code mode input record other equipment id, PIN code network authentication parameters；
B, structure one-level path：BLE equipment near root node scanning, and select some neighbours BLE equipment, prioritizing selection not to add Network and equipment with mesh protocol stacks, according to parameters for authentication binding authentication and set up GATT and connect, as next stage road By nodes records in the routing table；
C, structure second grade highway footpath：It is grade 1 that the mesh equipment of new addition network records oneself, scans and connect next stage route section Point, while recording and uploading its routing table to even higher level of node, is then recorded as without the BLE equipment of mesh agreements by routing node Leaf node；
D, networking are completed：Recursion step c is until neighbouring all connectable devices all add mesh networks.
3. it is according to claim 2 based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that the route Entry includes address, gateway, default gateway and grade point in table, and the even higher level of node of routing node is default gateway, its His neighbor node is common gateway, and the node routing information reported by neighbor node is recorded as common gateway.
4. it is according to claim 2 based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that the route Selection mode be that destination address is inquired about from routing table, exist, select its affiliated gateway for relay address, do not exist, turn Default route is issued, that is, is transmitted to even higher level of node.
5. it is according to claim 2 based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that mesh networks During newly-increased oil (gas) filling device, routing node is scanned to new equipment and establishes a connection certification success, then be added to its routing table And report path；During mesh network sweep equipments, it is unavailable that routing node detects neighbor node, then delete its routing iinformation, And other node routing informations with it as gateway, if the node is default gateway, its downlink network is dismissed, rebuild Route adds mesh.
6. it is according to claim 1 based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that BLE mesh Flow chart of data processing includes writing data, read data and reading data returning.
7. it is according to claim 6 based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that described to write number According to the step of it is as follows：
A, write data requests；
B, judge destination address whether oneself, if so, then target service data write；If it is not, then down proceeding；
C, judge destination address whether immediate neighbor, if so, then to neighbours write target service data；If it is not, then down continuing Carry out；
D, Route Selection next stage via node；
E, to via node write mesh forwarding service data；
F, write data and complete.
8. it is according to claim 6 based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that the reading According to the step of it is as follows：
A, read data request；
B, judge destination address whether oneself, if so, then target service data reads；If it is not, then down proceeding；
C, judge destination address whether immediate neighbor, if so, then to neighbours read target service data；If it is not, then down continuing Carry out；
D, Route Selection next stage via node；
E, to via node write read data parameters；
F, the reading data returning result for receiving via node；
G, reading data are completed.
9. it is according to claim 6 based on BLE attributes and the mesh network-building methods of GATT, it is characterised in that the reading According to as follows the step of return：
A, reading data are returned；
B, request is judged whether from mesh services, if it is not, then result returns to application layer；If so, then down proceed；
C, the next stage via node in routing request source；
D, to via node write read data return parameterss；
E, reading data are completed.
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