WO2016173426A1

WO2016173426A1 - Networking method and device for network

Info

Publication number: WO2016173426A1
Application number: PCT/CN2016/079640
Authority: WO
Inventors: 李卓群
Original assignee: 厦门纵行信息科技有限公司
Priority date: 2015-04-27
Filing date: 2016-04-19
Publication date: 2016-11-03
Also published as: JP6579716B2; JP2018515975A; CN104883285B; CN104883285A

Abstract

Disclosed in the present invention are a networking method and device for a network. The implementation method includes three types of logical nodes, a gateway node, a dual-mode node and a multi-point access slave node. The gateway node establishes a connection to the dual-mode node, the dual-mode node can establish a connection to one or more multi-point access slave nodes, and the three types of logical nodes in the network use a single, periodically repeated time frame to perform time-division communication. The present invention supports large-scale networking with limited channel (frequency) resources. Each dual-mode node is waken in several timeslots regularly according to a certain period; thereby, adjacent nodes, even all dual-mode nodes in the whole network, are guaranteed to communicate at different times, or the multi-point access slave node and the dual-mode node are guaranteed to communicate with different channels at the same time, such that the probability of a communication conflict between different nodes is reduced to the minimum.

Description

Network networking method and device

Technical field

The invention relates to a network networking method and device, in particular to a networking method and device for a hybrid network formed by three logical nodes: a gateway node, a dual mode node and a multipoint access slave node.

Background technique

Mesh Networks It is the most common networking method for Internet of Things or sensor networks. Each node in the mesh network can serve as a packet forwarding node. Each packet forwarding node is called a "hop". The coverage of the mesh network can be extended infinitely by the increase of nodes or "hop counts", because the newly added nodes can forward data through the adjacent "one-hop" node, thereby realizing any node in the network. Communication. However, the traditional mesh network structure has many limitations in practical applications. In particular, with the increase of nodes and the expansion of the network scale, the following problems will become serious, which actually limits the number of nodes or network scale of the mesh network:

First, the reliability of message transmission is significantly reduced, and the delay is significantly improved. Because the successful transmission of a message requires that every "one hop" on the transmission path or each message forwarding node does not cause problems. This means that for every "one hop" increase, the average end-to-end packet transmission loss rate or delay of the mesh network will increase accordingly;

Secondly, As the number of network nodes increases, the node density per unit area increases in a limited area. This means that, in the case where the available channels are limited, the probability that the different nodes will collide with each other during message transmission will be significantly improved;

Again, in practical applications, the communication between a mesh network and an external network generally has only a fixed number of paths, and all nodes in the network will be aggregated and forwarded to the external network at several fixed gateway nodes. This means that as the number of network nodes increases, the number of packets that the gateway node and other nodes close to the gateway need to forward is much larger than the number of nodes on the far end of the network. This can lead to extreme imbalances in message traffic in a mesh network, which can lead to extreme imbalances in node power consumption in an IoT or sensor network. The rapid depletion of the power of these critical nodes in the final network results in a significant reduction in the lifetime of the entire network.

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art, and to provide a networking method and device for a network, and implement intelligently optimized network scheduling for implementing an intelligent handover networking mode.

The technical solution adopted by the present invention to solve the technical problem thereof is to provide a network networking method, where the network includes: two logical nodes: a gateway node and a dual mode node;

The gateway node establishes a direct connection or an indirect connection with the dual-mode node in the network; the two logical nodes in the network use a periodically repeated, unified time frame for time-division communication.

Preferably, the gateway node balances the number of connections of different dual-mode nodes under the premise of ensuring that the link signal strength between the nodes satisfies one or more quality of service indicators, so that the nodes in the network are not concentrated and specific A dual mode node establishes a connection.

Preferably, the gateway node generates a dual-mode node traffic scheduling map according to the network topology and transmits the dual-mode node to the dual-mode node in the network; the dual-mode node determines the wake-up time according to the received dual-mode node traffic scheduling map.

Preferably, the dual-mode node traffic scheduling diagram includes one dimension of the channel;

The dual mode section determines a channel for its own data transmission according to the dual mode node traffic scheduling map.

Preferably, the dual-mode node traffic scheduling diagram includes one dimension of a time slot;

The dual modal section determines its own wake-up time according to the dual-mode node traffic schedule.

Preferably, the dual-mode node traffic scheduling diagram includes two dimensions of a channel and a time slot;

The number of time slots of the dual-mode node traffic scheduling graph is greater than or equal to the sum of the number of gateway nodes and dual-mode nodes, and the gateway node and each dual-mode node respectively occupy one time slot; the gateway node and each dual-mode node are allocated. Data transmission on one or more channels;

Another technical solution adopted by the present invention to solve the technical problem is to provide a network networking method, where the network includes: a gateway node, a dual mode node, and one or more multipoint access slave nodes;

The dual-mode node in the network can establish a connection with one or more multi-point access slave nodes; the three logical nodes of the gateway node, the dual-mode node and the multi-point access slave node in the network adopt a cyclically repeated, unified Time frame for time-division communication.

Preferably, the gateway node generates a dual-mode node traffic scheduling map according to the network topology and transmits the dual-mode node to the dual-mode node in the network; the dual-mode node determines the wake-up time according to the received dual-mode node traffic scheduling map; A multi-mode node connected to one or more multi-point access slave nodes generates a multi-point access from the node traffic schedule map to one or more multi-point access slave nodes connected thereto; the one or more The point access slave node determines its own wake-up time according to the received multi-point access slave node traffic schedule.

Preferably, the dual-mode node traffic scheduling map and the multi-point access slave node traffic scheduling map each include a channel dimension;

Determining, by the dual mode node, a channel of the data transmission according to the dual mode node traffic scheduling diagram;

The multi-point access slave node determines its own channel for data transmission according to the multi-point access slave node traffic schedule.

Preferably, the dual-mode node traffic scheduling map and the multi-point access slave node traffic scheduling map each include a time slot of one dimension;

The dual modal section determines its own wake-up time according to the dual-mode node traffic scheduling diagram;

The multi-point access slave node determines its own wake-up time according to the multi-point access slave node traffic schedule.

Preferably, the dual-mode node traffic scheduling map and the multi-point access slave node traffic scheduling map both include two dimensions of a channel and a time slot;

The number of slots of the dual-mode node traffic scheduling graph is greater than or equal to the sum of the number of gateway nodes and dual-mode nodes, and the gateway node and each dual-mode node respectively occupy one slot; the dual-mode node traffic scheduling graph will The gateway node and the different dual mode nodes are allocated to transmit data on one or more channels;

The number of time slots of the multi-point access slave node traffic scheduling map is greater than or equal to the number of multi-point access slave nodes; the multi-point access slave node traffic scheduling map assigns different multi-point access slave nodes to One or more channels for data transmission.

Preferably, the gateway node generates a network traffic scheduling map according to the network topology point and transmits the network traffic scheduling map to the dual mode node in the network; the dual mode node transmits the network traffic scheduling map to one or more multi-point connections connected thereto Into the slave node; the three logical nodes in the network determine their wake-up time and the channel used for data transmission according to the network-wide traffic schedule.

Preferably, the network traffic scheduling diagram includes one dimension of a channel or a time slot, or two dimensions of a channel and a time slot.

Another technical solution adopted by the present invention to solve the technical problem thereof is to provide a multi-mode wireless communication device, which supports a gateway node, a dual-mode node, and a multi-point access slave node in a network networking method, including two One or more independent wireless modules;

Each individual wireless module includes a wireless transceiver, a central processor, a storage module, and a battery module;

The wireless transceiver is configured to transmit and receive wireless signals;

The central processor is configured to implement networking of the network; the central processor receives the traffic schedule map and transmits the data to the storage module for storage, and controls the wake-up or sleep time of the wireless transceiver according to the traffic schedule.

Preferably, each wireless module operates on a different wireless communication standard or frequency band.

Preferably, each wireless module operates independently in a single mode single band or single mode multi band mode.

Preferably, the wireless modules interact with each other through a wired data interface or a control signal interface.

Preferably, the wireless modules perform clock synchronization through a clock signal interface or a control signal interface; the clock synchronization includes clock frequency synchronization and clock phase synchronization.

Preferably, each wireless module can sleep or wake up independently, and each wireless module can also wake up other wireless communication devices through the control signal interface using an external control signal.

The beneficial effects of the invention are:

Support large-scale networking under limited channel (ie, frequency) resources. Each dual-mode node wakes up according to a certain period of time in several time slots, thereby ensuring that all adjacent nodes, even the entire network, have dual-mode nodes. Communicate at different times, or ensure that multi-point access slave nodes and dual-mode nodes communicate on different channels at the same time, minimizing the probability of communication collision between different nodes.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, a network networking method of the present invention is not limited to the embodiments.

DRAWINGS

1 is a schematic diagram of a hybrid network networking according to Embodiment 2 of the present invention;

2A is a schematic diagram of a networking method of a network according to Embodiment 1 of the present invention;

2B is still another schematic diagram of a networking method of a network according to Embodiment 1 of the present invention;

3 is a flow chart of a dual mode node flow scheduling of the present invention;

4 is a multi-point access slave node traffic scheduling diagram of the present invention;

5 is a network traffic scheduling diagram of the present invention;

6 is a structural diagram of a multimode wireless communication device according to an embodiment of the present invention.

detailed description

Example 1

Referring to FIG. 2 and FIG. 3, a network networking method of the present invention includes two logical nodes: a gateway node 10 and a dual mode node 20;

The gateway node 10 establishes a direct connection or an indirect connection with the dual mode node 20 in the network; the two logical nodes in the network use a periodically repeated, unified time frame for time division communication.

The gateway node 10 balances the number of connections of different dual-mode nodes 20 under the premise of ensuring that the link signal strength between the nodes satisfies one or more quality of service indicators, so that the nodes in the network are not concentrated with a specific number of dual-modes. Node 20 establishes a connection.

If the number of connections of each node in a network is not balanced, the number of lower-level connections between some nodes is significantly unbalanced. As shown in Figure 2A, the dual-mode node M3 has three lower-level connected dual-mode nodes M4 and dual-mode. Node M5 and dual mode node M6, and dual mode node M2 has zero lower level connections; such a connection mode affects the uninterrupted operational life cycle of the entire network; through node connection equalization, as shown in Figure 2B, the dual mode node M3 is made. There are two lower-level connected dual-mode nodes M4 and dual-mode nodes M6, so that the dual-mode node M2 has a lower-level connected dual-mode node M7. This optimized balanced allocation makes the nodes in the network more balanced.

Further, the dual-mode node traffic scheduling map includes one dimension of the channel; the dual-mode node 20 determines a channel for its own data transmission according to the dual-mode node traffic scheduling map.

Further, the dual-mode node traffic scheduling map includes one dimension of the time slot; the dual-mode node 20 determines its own wake-up time according to the dual-mode node traffic scheduling map.

Further, the dual mode node traffic scheduling diagram includes two dimensions of a channel and a time slot;

The number of time slots of the dual-mode node traffic scheduling map is greater than or equal to the sum of the number of gateway nodes 10 and dual-mode nodes 20, and the gateway node 10 and each dual-mode node 20 respectively occupy one time slot; the gateway node 10 and each A dual mode node 20 is assigned to one or more channels for data transmission.

Further, the gateway node 10 balances the number of connections of different dual-mode nodes 20 under the premise of ensuring that the link signal strength between the nodes satisfies one or more quality of service indicators, so that the nodes in the network are not concentrated and specific. Several dual mode nodes 20 establish a connection.

Example 2

Referring to FIG. 1, a network networking method of the present invention includes a gateway node 10, a dual mode node 20, and one or more multipoint access slave nodes 30. The dual-mode node 20 can establish a connection with one or more multi-point access slave nodes 30; the three logical nodes of the gateway node 10, the dual-mode node 20, and the multi-point access slave node 30 adopt a cyclically repeated, unified Time frame for time-division communication.

Referring to FIG. 3 to FIG. 5, the gateway node 10 generates a dual-mode node traffic schedule map according to the network topology and transmits it to the dual-mode node 20 points in the network; the dual-mode node 20 according to the received dual-mode node traffic. The scheduling map determines its own wake-up time; wherein one or more multi-point accesses are connected from the dual-mode node of the node 30 to generate a multi-point access from the node traffic schedule map to one or more multi-point accesses connected thereto The slave node 30; the one or more multipoint access slave nodes determine their own wakeup time according to the received multipoint access slave node traffic schedule.

Further, the gateway node 10 generates a dual-mode node traffic schedule map according to the network topology and transmits it to the dual-mode node 20 in the network; the dual-mode node 20 determines its own wake-up according to the received dual-mode node traffic schedule map. a time; wherein the dual mode node 20 connected to the one or more multipoint access slave nodes 30 generates a multipoint access slave node traffic schedule map transmission to one or more multipoint access slave nodes 30 connected thereto; The one or more multi-point access slave nodes 30 determine their own wake-up time according to the received multi-point access slave node traffic schedule.

Further, the dual-mode node traffic scheduling map and the multi-point access slave node traffic scheduling map each include a channel dimension; the dual-mode node 20 determines a channel for transmitting data according to the dual-mode node traffic scheduling map; The multipoint access slave node 30 determines its own channel for data transmission based on the multipoint access slave node traffic schedule.

Further, the dual-mode node traffic scheduling map and the multi-point access slave node traffic scheduling map each include a time slot; the dual-mode node 20 determines its own wake-up time according to the dual-mode node traffic scheduling map; The point access slave node 30 determines its own wake-up time according to the multi-point access slave node traffic schedule.

Further, the dual-mode node traffic scheduling map and the multi-point access slave node traffic scheduling map both include a channel and a time slot; the number of time slots of the dual-mode node traffic scheduling map is greater than or equal to the gateway node 10 And the sum of the number of dual mode nodes 20, the gateway node 10 and each dual mode node 20 occupy one time slot respectively; the dual mode node traffic scheduling map assigns the gateway node and the different dual mode nodes 20 to one or more channels Performing data transmission; the number of timeslots of the multi-point access slave node traffic schedule graph is greater than or equal to the number of multi-point access slave nodes 30; the multi-point access slave node traffic schedule graph will be different multi-point The incoming slave node 30 is assigned one or more channels for data transmission.

Further, the gateway node 10 generates a network traffic scheduling map according to the network topology point and transmits it to the dual mode node in the network; the dual mode node 20 transmits the network traffic scheduling map to one or more connected thereto. The point accesses the slave node 30; the three logical nodes in the network determine their own wake-up time and the channel used for data transmission according to the network-wide traffic schedule.

Further, the network traffic scheduling map includes one dimension of a channel or a time slot, or two dimensions of a channel and a time slot.

In order to support large-scale networking under limited channel (ie, frequency) resources, each dual-mode node 20 wakes up according to a certain period of time in a number of time slots, thereby ensuring that all adjacent nodes, even the entire network, are double-doubled. The modulo node communicates at different times, or ensures that the multipoint access slave node 30 and the dual mode node 20 communicate on different channels at the same time, minimizing the probability of communication collision between different nodes.

The networking method of the network of the present invention can be used in three different networking forms: a mesh network formed by a direct connection or an indirect connection between the gateway node 10 and the dual mode node 20; 20 and a multipoint access network formed by connecting one or more multipoint accesses from the node 30; a hybrid network established by the gateway node 10, the dual mode section 20, and the multipoint access slave node 30 logical nodes.

Example 3

Referring to FIG. 6, a multi-mode wireless communication device supports a gateway node, a dual-mode node, and/or a multi-point access slave node in a network networking method, including two or more independent wireless devices. Module 40;

Each of the independent wireless modules 40 includes a wireless transceiver 401, a central processor 402, a storage module 403, and a battery module 404;

The wireless transceiver 401 is configured to send and receive wireless signals;

The central processor 402 is configured to implement networking of the network; the central processor 402 receives the traffic schedule map and transmits it to the storage module 403 for storage, and controls the wake-up or sleep of the wireless transceiver 401 according to the traffic schedule map. time.

Each wireless module 40 operates on a different wireless communication standard or frequency band;

Further, each of the wireless modules 40 operates independently in the form of a single mode single band or a single mode multi-band.

Further, the wireless modules 40 interact with each other through a wired data interface or a control signal interface.

Further, the wireless modules 40 perform clock synchronization through a clock signal interface or a control signal interface; the clock synchronization includes clock frequency synchronization and clock phase synchronization.

Further, each wireless module 40 can sleep or wake up independently, and each wireless module 40 can also wake up other wireless communication devices through the control signal interface using an external control signal.

The foregoing embodiments are only used to further illustrate a network networking method of the present invention, but the present invention is not limited to the embodiments, and any simple modifications, equivalent changes, and modifications made to the above embodiments in accordance with the technical spirit of the present invention are provided. All fall within the protection scope of the technical solution of the present invention.

Industrial applicability

The network networking method and device of the invention support large-scale networking under limited channel (ie, frequency) resources, and each dual-mode node wakes up according to a certain period of time in a plurality of time slots, thereby ensuring neighboring Nodes, even the entire network, all dual-mode nodes, communicate at different times, or ensure that multi-point access slave nodes and dual-mode nodes communicate on different channels at the same time, the probability of communication conflict between different nodes Minimized, with good industrial applicability.

Claims

A network networking method, characterized in that: the network includes: two logical nodes: a gateway node and a dual mode node;

The gateway node establishes a direct connection or an indirect connection with the dual-mode node in the network; the two logical nodes in the network use a periodically repeated, unified time frame for time-division communication.
The networking method of a network according to claim 1, wherein the gateway node balances different dual-mode nodes under the premise that the link signal strength between the nodes satisfies one or more quality of service indicators. The number of connections is such that nodes in the network do not concentrate on establishing connections with specific dual-mode nodes.
The networking method of the network according to claim 1, wherein the gateway node generates a dual-mode node traffic schedule map according to the network topology and transmits the dual-mode node to the dual-mode node in the network; The received dual-mode node traffic schedule map determines its own wake-up time.
The network networking method according to claim 3, wherein the dual mode node traffic scheduling map comprises a channel dimension;

The dual mode node determines its own channel for data transmission according to the dual mode node traffic schedule.
The networking method of a network according to claim 3, wherein the dual mode node traffic scheduling map comprises a time slot of one dimension.

The dual mode node determines its own wake-up time according to the dual-mode node traffic scheduling map.
The networking method of a network according to claim 3, wherein the dual-mode node traffic scheduling diagram comprises two dimensions of a channel and a time slot;

The number of time slots of the dual-mode node traffic scheduling graph is greater than or equal to the sum of the number of gateway nodes and dual-mode nodes, and the gateway node and each dual-mode node respectively occupy one time slot; the gateway node and each dual-mode node are allocated. Data transmission is performed on one or more channels.
A networking method for a network, comprising: a gateway node, a dual mode node, and one or more multipoint access slave nodes;

The dual-mode node in the network can establish a connection with one or more multi-point access slave nodes; the three logical nodes of the gateway node, the dual-mode node and the multi-point access slave node in the network adopt a cyclically repeated and unified Time frame for time-division communication.
The networking method of a network according to claim 7, wherein the gateway node balances different dual-mode nodes under the premise of ensuring that the link signal strength between the nodes satisfies one or more quality of service indicators. The number of connections is such that nodes in the network do not concentrate on establishing connections with specific dual-mode nodes.
The network networking method according to claim 7, wherein the gateway node generates a dual-mode node traffic schedule map according to the network topology and transmits the dual-mode node to the network; the dual-mode node is configured according to The received dual-mode node traffic schedule map determines its own wake-up time; wherein the dual-mode node connected to the node with one or more multi-point accesses generates a multi-point access from the node traffic schedule map to the one connected to it or Multiple multi-point access slave nodes; the one or more multi-point access slave nodes determine their own wake-up time according to the received multi-point access slave node traffic schedule.
The network networking method according to claim 9, wherein the dual-mode node traffic scheduling map and the multi-point access slave node traffic scheduling map each include a channel dimension;

Determining, by the dual mode node, a channel of the data transmission according to the dual mode node traffic scheduling diagram;

The multi-point access slave node determines its own channel for data transmission according to the multi-point access slave node traffic schedule.
The network networking method according to claim 9, wherein the dual-mode node traffic scheduling map and the multi-point access slave node traffic scheduling map each include a time slot;

The dual modal section determines its own wake-up time according to the dual-mode node traffic scheduling diagram;

The multi-point access slave node determines its own wake-up time according to the multi-point access slave node traffic schedule.
The network networking method according to claim 9, wherein the dual-mode node traffic scheduling map and the multi-point access slave node traffic scheduling map both include a channel and a time slot;

The number of slots of the dual-mode node traffic scheduling graph is greater than or equal to the sum of the number of gateway nodes and dual-mode nodes, and the gateway node and each dual-mode node respectively occupy one slot; the dual-mode node traffic scheduling graph will The gateway node and the different dual mode nodes are allocated to transmit data on one or more channels;

The number of time slots of the multi-point access slave node traffic scheduling map is greater than or equal to the number of multi-point access slave nodes; the multi-point access slave node traffic scheduling map assigns different multi-point access slave nodes to One or more channels for data transmission.
The network networking method according to claim 7, wherein the gateway node generates a network traffic scheduling map according to the network topology point and transmits the signal to the dual mode node in the network; the dual mode node will be all The network traffic schedule is transmitted to one or more multi-access slave nodes connected thereto; the three logical nodes in the network determine their wake-up time and the channel used for data transmission according to the network-wide traffic schedule.
The network networking method according to claim 13, wherein the network traffic scheduling map comprises one dimension of a channel or a time slot, or two dimensions of a channel and a time slot.
A multi-mode wireless communication device supporting a gateway node, a dual-mode node, and/or a multi-point access slave node in a network networking method, characterized in that: comprising: two or more independent wireless modules ;

Each individual wireless module includes a wireless transceiver, a central processor, a storage module, and a battery module;

The wireless transceiver is configured to transmit and receive wireless signals;

The central processor is configured to implement networking of the network; the central processor receives the traffic schedule map and transmits the data to the storage module for storage, and controls the wake-up or sleep time of the wireless transceiver according to the traffic schedule.
A multimode wireless communication device according to claim 15 wherein each of the wireless modules operates on a different wireless communication standard or frequency band.
A multimode wireless communication device according to claim 15, wherein each of the wireless modules operates independently in a single mode single band or single mode multi band mode.
A multimode wireless communication device according to claim 15, wherein said wireless modules interact with each other via a wired data interface or a control signal interface.
A multimode wireless communication device according to claim 15, wherein said wireless modules perform clock synchronization through a clock signal interface or a control signal interface; said clock synchronization includes clock frequency synchronization and clock phase synchronization.
A multimode wireless communication device according to claim 15, wherein each of the wireless modules can independently sleep or wake up, and each of the wireless modules can also wake up the other wireless communication devices through the control signal interface using an external control signal.