CN116634550A - Networking synchronization method, networking system and node equipment - Google Patents

Networking synchronization method, networking system and node equipment Download PDF

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Publication number
CN116634550A
CN116634550A CN202310611992.0A CN202310611992A CN116634550A CN 116634550 A CN116634550 A CN 116634550A CN 202310611992 A CN202310611992 A CN 202310611992A CN 116634550 A CN116634550 A CN 116634550A
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China
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node
networking
synchronization message
synchronization
collaboration
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CN202310611992.0A
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Inventor
郝增盈
邵勇
李昊汶
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Hebi Tianhai Electronic Information System Co Ltd
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Hebi Tianhai Electronic Information System Co Ltd
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Priority to CN202310611992.0A priority Critical patent/CN116634550A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a networking synchronization method, a networking system and equipment. The method comprises the steps of responding to the received first collaboration synchronization message in preset time, carrying out time slot synchronization with a corresponding network reference node based on the first collaboration synchronization message, and sending the first collaboration synchronization message by utilizing a next control time slot when the next control time slot arrives so as to inform other networking nodes of carrying out time slot synchronization; and in response to receiving at least one second collaboration synchronization message after the first collaboration synchronization message is sent, determining a target network reference node from the network reference nodes corresponding to the first collaboration synchronization message and the network reference nodes corresponding to the at least one second collaboration synchronization message so as to perform time slot synchronization with the target network reference node, and when the next control time slot arrives, sending the target collaboration synchronization message by using the next control time slot so as to inform other networking nodes of time slot synchronization. By the method, the time slot synchronization of the nodes in the ad hoc network can be realized rapidly.

Description

Networking synchronization method, networking system and node equipment
Technical Field
The present application relates to the field of communications, and in particular, to a networking synchronization method, a networking system, and a node device.
Background
With the development of science and technology, the demand for ad hoc networks is increasing. The ad hoc network system can perform networking under the condition of visual distance or non-visual distance, and the voice and video data of the front end can be transmitted. The self-networking mode can quickly construct a set of non-centralized network environment without depending on conventional machine room equipment. And the wireless ad hoc network is used as a wireless multi-hop ad hoc network, so that the application of the wireless ad hoc network is wider. Network nodes in the wireless ad hoc network can carry out service communication with other nodes through multiple hops, and communication between the nodes generally adopts a TDMA (time division multiple access) as an access mode, so that time slot synchronization becomes a key technology which directly affects the reliability and stability of network services. Especially when large-scale nodes are networked, collision among network nodes is aggravated, time for network synchronization is prolonged, complexity of network synchronization is higher and higher, and how to reduce collision among nodes so as to complete time slot synchronization faster becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The application mainly aims to provide a networking synchronization method, a networking system and node equipment, which can solve the technical problem that the synchronization time is too long when large-scale nodes are networking.
In order to solve the technical problems, the first technical scheme adopted by the application is as follows: a networking synchronization method is provided, which is applied to networking nodes. The method comprises the steps of responding to the received first collaboration synchronization message in preset time, carrying out time slot synchronization based on the first collaboration synchronization message and a corresponding network reference node, and sending the first collaboration synchronization message by utilizing a next control time slot when a next control time slot arrives so as to inform other networking nodes of carrying out time slot synchronization, wherein the first collaboration synchronization message is sent by the control time slot, and the first collaboration synchronization message is initially sent by the network reference node, and the networking node which does not receive the first collaboration synchronization message in the preset time serves as the network reference node; and in response to receiving at least one second collaboration synchronization message after the first collaboration synchronization message is sent, determining a target network reference node from the network reference nodes corresponding to the first collaboration synchronization message and the network reference nodes corresponding to the at least one second collaboration synchronization message so as to perform time slot synchronization with the target network reference node, and when the next control time slot arrives, sending the target collaboration synchronization message by using the next control time slot so as to inform other networking nodes of time slot synchronization.
In order to solve the technical problems, a second technical scheme adopted by the application is as follows: a networking system is provided. The networking system comprises a network reference node and at least one networking node, wherein the networking node is obtained based on the method in the first technical scheme
In order to solve the technical problems, a third technical scheme adopted by the application is as follows: a node device is provided. The node device comprises a memory for storing program data executable by the processor for implementing the method as described in the first technical solution.
The beneficial effects of the application are as follows: and setting a preset time for the networking node, and carrying out time slot synchronization with the corresponding network reference node according to the first collaboration synchronization message when the first collaboration synchronization message is received within the preset time. And if the first collaboration synchronization message is not received, the first collaboration synchronization message is used as a network reference node to send the collaboration synchronization message. And after the current control time slot receives the first cooperative synchronization message and completes time slot synchronization with the corresponding network reference node according to the first cooperative synchronization message, forwarding the first cooperative synchronization message in the next control time slot to inform other networking nodes of time slot synchronization. If the second collaboration synchronization message is received after the first collaboration synchronization message is sent, determining a target network reference node from network reference nodes corresponding to the first collaboration synchronization message and the second collaboration synchronization message, so as to perform time slot synchronization with the target network reference node, forwarding the target collaboration synchronization message to inform other networking nodes of performing time slot synchronization when the next control time slot arrives, controlling whether the networking nodes send the collaboration synchronization message or not in the mode of the preset time, and further determining the target network reference node according to comparison of the collaboration synchronization message, thereby rapidly realizing time slot synchronization of nodes in the ad hoc network.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a first embodiment of a networking synchronization method of the present application;
FIG. 2 is a flowchart of a second embodiment of the networking synchronization method of the present application;
FIG. 3 is a flowchart of a third embodiment of the networking synchronization method of the present application;
FIG. 4 is a flowchart of a fourth embodiment of the networking synchronization method of the present application;
FIG. 5 is a diagram of a frame time transmit-receive situation according to the present application;
fig. 6 is a schematic structural diagram of a first embodiment of the node apparatus of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "first," "second," and the like in this disclosure are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Referring to fig. 1, fig. 1 is a flowchart of a first embodiment of a networking synchronization method according to the present application. The method is applied to networking nodes and comprises the following steps of:
s11: and responding to the received first collaboration synchronization message in preset time, carrying out time slot synchronization with the corresponding network reference node based on the first collaboration synchronization message, and sending the first collaboration synchronization message by utilizing the next control time slot when the next control time slot arrives so as to inform other networking nodes of time slot synchronization.
The first cooperative synchronization message is initially issued by the network reference node by the control slot. And if the networking node which does not receive the first collaboration synchronization message within the preset time is transmitted as a network reference node.
After the networking node is electrified, the node enters a synchronous interception state, receives a cooperative synchronization message in the network and starts timing of preset time. A time timer can be set for timing of the preset time, when the cooperative synchronization message is received within the preset time, the local time slot is controlled to be consistent with the network reference node corresponding to the cooperative synchronization message, and when no cooperative synchronization message is received within the preset time, the local time slot is determined to be the network reference node, and the cooperative synchronization message starts to be sent.
If the first collaboration synchronization message is received within the preset time, synchronizing the local time slot with the time slot of the network reference node corresponding to the first collaboration synchronization message based on the first collaboration synchronization message, and sending the first collaboration synchronization message by using the next control time slot when the next control time slot arrives, so as to inform other networking nodes to complete the time slot synchronization process according to the collaboration synchronization message. The next control slot is the first control slot after the networking node receives the first collaboration synchronization message.
If the networking node does not receive the first cooperative synchronization message within the preset time, generating the first cooperative synchronization message based on the local time slot information of the networking node, and when the next control time slot arrives, sending the first cooperative synchronization message by using the next control time slot so as to inform other networking nodes to perform time slot synchronization according to the cooperative synchronization message.
S12: and in response to receiving at least one second collaboration synchronization message after the first collaboration synchronization message is sent, determining a target network reference node from the network reference nodes corresponding to the first collaboration synchronization message and the network reference nodes corresponding to the at least one second collaboration synchronization message so as to perform time slot synchronization with the target network reference node, and when the next control time slot arrives, sending the target collaboration synchronization message by using the next control time slot so as to inform other networking nodes of time slot synchronization.
After the first collaboration synchronization message is sent, responding to the networking node to receive at least one second collaboration synchronization message, and determining a corresponding network reference node according to the first collaboration synchronization message and the second collaboration synchronization message, thereby determining a target network reference node. The second collaborative synchronization message and the first collaborative synchronization message are issued by different network reference nodes.
The node determines a target network reference node based on the first collaborative synchronization message and the second collaborative synchronization message. Specifically, the networking node receives a second collaboration synchronization message for the first time, determines a target network reference node from the network reference nodes corresponding to the second collaboration synchronization message based on the second collaboration synchronization message and the first collaboration synchronization message, then receives a second collaboration synchronization message, compares the network reference node corresponding to the second collaboration synchronization message with the target network reference node obtained before to obtain a new target network reference node, and compares each network reference node corresponding to each second collaboration synchronization message received after with the target network reference node obtained last time.
After the above-mentioned cooperative message forwarding process, all networking nodes finally determine a target network reference node, and the target network reference node is used as the network reference node of the networking, and the time slot information of all networking nodes is consistent with that of the network reference node, so as to complete the time slot synchronization of the whole networking system.
In this embodiment, a preset time is set for the networking node, and when the first collaboration synchronization message is received within the preset time, slot synchronization is performed with the corresponding network reference node according to the first collaboration synchronization message. And if the first collaboration synchronization message is not received, the first collaboration synchronization message is used as a network reference node to send the collaboration synchronization message. And after the current control time slot receives the first cooperative synchronization message and completes time slot synchronization with the corresponding network reference node according to the first cooperative synchronization message, forwarding the first cooperative synchronization message in the next control time slot to inform other networking nodes of time slot synchronization. If the second collaboration synchronization message is received after the first collaboration synchronization message is sent, determining a target network reference node from network reference nodes corresponding to the first collaboration synchronization message and the second collaboration synchronization message, so as to perform time slot synchronization with the target network reference node, forwarding the target collaboration synchronization message to inform other networking nodes of performing time slot synchronization when the next control time slot arrives, controlling whether the networking nodes send the collaboration synchronization message or not in the mode of the preset time, and further determining the target network reference node according to comparison of the collaboration synchronization message, thereby rapidly realizing time slot synchronization of nodes in the ad hoc network.
In an embodiment, the preset time is inversely related to the node priority of the networking node, and the higher the node priority of the networking node is, the shorter the corresponding preset time is. Therefore, the networking nodes with high priority can be ensured to participate in the selection of the network reference nodes at first.
The network reference node may send the collaboration synchronization message at the first control slot of the time frame.
Referring to fig. 2, fig. 2 is a flowchart of a second embodiment of the networking synchronization method of the present application. The method is a further extension of step S12, comprising the steps of:
s21: and acquiring node priorities of the network reference nodes corresponding to the first collaboration synchronization message and the at least one second collaboration synchronization message.
In the process of determining the target reference node, determining the network reference node corresponding to the first collaboration synchronization message and the second collaboration synchronization message. The corresponding network reference node is the network reference node which initially sends out the collaboration synchronization message, and the time slot information contained in the collaboration synchronization message is the time slot information of the corresponding network reference node. Before starting the networking synchronization, node priority is configured for each networking node for determining the target network reference node.
S22: and determining the group network reference node with the highest node priority as a target network reference node.
The comparison of networking nodes is a two-by-two comparison process. The networking node performs a comparison process each time it receives a second collaboration synchronization message. After at least one comparison, the networking node determines, according to the node priority, a network reference node with the highest node priority in the network reference nodes corresponding to the first collaboration synchronization message and the received second collaboration synchronization message as a final target network reference node. The target network reference node is the network reference node of the whole ad hoc network.
Referring to fig. 3, fig. 3 is a flowchart of a third embodiment of the networking synchronization method of the present application. The method is a further extension of step S12, comprising the steps of:
s31: and determining the collaboration synchronization message corresponding to the target network reference node as a target collaboration synchronization message.
S32: and when the next control time slot arrives, sending a target cooperative synchronization message by using the next control time slot so as to inform other networking nodes of performing time slot synchronization.
In the above process, after the second cooperative synchronization message is received once and compared once, the cooperative synchronization message sent by the target network reference node needs to be forwarded after the target network reference node is obtained, so as to inform other networking nodes to perform time slot synchronization.
Referring to fig. 4, fig. 4 is a flowchart of a fourth embodiment of the networking synchronization method of the present application. The method is a further extension of step S32, comprising the steps of:
s41: and changing node hop count information in the target cooperative synchronization message, wherein the node hop count information is used for determining node hop count grades of networking nodes relative to target network reference nodes.
S42: and transmitting the target collaboration synchronization message by using the next control time slot.
Before the networking node forwards the target cooperative synchronization message, the node hop count information in the target cooperative synchronization message is changed. The node hop count information is information which can be used in the collaboration synchronization message to indicate that the collaboration synchronization message has been forwarded several times. When the collaboration synchronization message is sent by the network reference node, the node hop count information can be 0, and when other networking nodes receive the collaboration synchronization message, the node hop count information can be used for determining that the node itself is a one-hop node of the network reference node. When the networking node completes the comparison of the collaboration synchronization message and needs to forward the collaboration synchronization message, the node hop count information is changed, for example, the node hop count information is changed to 1, so as to inform the next networking node receiving the collaboration synchronization message that the next networking node is a two-hop node.
The node hop count information can determine hop count grades of each networking node relative to the network reference node after the networking completes time slot synchronization, so as to be used for the subsequent conditions of network reference node updating and the like.
The application also provides a networking system which comprises a network reference node and at least one networking node, wherein the network reference node is obtained based on any embodiment and possible combination method of the networking synchronization method.
In one embodiment, in response to a network reference node anomaly, marking a networking node with a highest node hop count level for the network reference node as a target networking node; and performing networking synchronization on the target networking node to determine a new network reference node.
When the network reference node in the networking system is abnormal, at least one networking node with the highest node hop count level for the network reference node is selected as a target networking node, one network reference node is determined in the target networking node according to the synchronization method, and the network reference node is used as a new network reference node of the whole networking system. For example, after the network reference node is abnormal, all the one-hop nodes of the network reference node are used as target networking nodes to perform networking synchronization.
In an embodiment, further, in response to the network synchronization failure, marking the network node of the next node hop count level as the target network node; and performing networking synchronization on the target networking node to determine a new network reference node.
If the synchronization fails, the networking node of the next node hop count level is also used as the target networking node, and a network reference node is continuously determined in the new target networking node according to the synchronization method. For example, after synchronization of the first-hop node fails, the second-hop node is selected as a target networking node, and slot synchronization is performed with the first-hop node to obtain a network reference node.
When a new networking node is started, the networking node receives a collaboration synchronization message sent by a network reference node or collaboration synchronization messages forwarded by other networking nodes, so that time slot synchronization can be realized, and networking is completed.
The synchronization method of the present application will be described in more detail with reference to the following specific embodiment.
In order to synchronize all networking nodes in the networking to a TDMA frame structure with a period of N, after each networking node is powered on and started, the nodes enter a synchronous interception state, start to receive cooperative synchronization messages in the network, and start an interception waiting random time timer. If the collaboration synchronization message is received, the local time slot boundary is adjusted, the frame time is consistent with the originating end, otherwise, once the random time is overtime, the networking node is considered as a network parameter, and the collaboration synchronization message starts to be sent. The length of the random waiting time setting is monitored, the setting can be carried out according to the preset priority or the node number of the node, and the high-priority node can be ensured to participate in the promotion of the network parameters preferentially.
When the networking node receives the cooperative synchronization message, setting the grade information of the local networking node according to the hop count, adjusting the boundary of the local time slot to be consistent with the transmitting end according to the synchronization message, adding one hop count of the cooperative synchronization message when the next control time slot arrives, broadcasting the cooperative synchronization message, and diffusing the cooperative synchronization message to the whole network through hop-by-hop cooperative forwarding to achieve time slot synchronization of all nodes in the network. The network reference node then periodically transmits a collaboration synchronization message. The network parameter randomly selects a first control time slot when a certain frame is selected in a fixed N frame period to send a collaboration synchronization message, other nodes adjust the node level and the time slot boundary to be consistent with the sending end according to the latest collaboration synchronization message after receiving the collaboration synchronization message, and after changing the hop count in the message by one, the collaboration synchronization message is forwarded hop by hop in the latest control time slot, so that the time slot synchronization of the whole network is maintained. The transmission/reception of frames can be seen in fig. 5.
If multiple network reference nodes are generated in the network at the same time, when the receiving node receives multiple different collaboration synchronous messages, a network reference node is judged according to the node number or priority of each network reference node, the time slot boundary and the frame are adjusted to be consistent with each other, the network converges along with time, and finally the network can judge a unique network reference node.
After the network synchronization is completed, if the network reference node is abnormal, new network parameters are re-promoted. In order to improve the election efficiency, different election waiting time is set according to the node level, the smaller the node level is, the shorter the election waiting time is, and the shortest the election waiting time of one-hop node is. The method comprises the steps of firstly participating in competition from a first-hop neighbor node set, wherein the competition mode is consistent with an initial network reference node election mode, when the first-hop neighbor node set fails to perform election, for example, the synchronous time exceeds the election waiting time, and the synchronization of all first-hop nodes is still not completed, the second-hop neighbor node set participates in competition, and the like, and the competition is participated hop by hop until a new network reference node is generated.
According to the networking synchronization method, the coordinated multi-point synchronization mechanism is adopted, so that time slot synchronization is irrelevant to node scale, time synchronization information of network reference nodes can be rapidly diffused to the whole network hop by hop, time slot synchronization time is greatly shortened, adaptability and robustness in complex and changeable networks are improved, and rapid synchronization of large-scale node networking is achieved. When the network reference node is abnormal, the high-level nodes adjacent to the network reference node participate in competition and selection preferentially, so that collision among the nodes is reduced, new network parameters can be selected rapidly, and the network self-healing time is shortened.
As shown in fig. 6, fig. 6 is a schematic structural diagram of a first embodiment of a node device according to the present application.
The node device comprises a processor 110, a memory 120.
The processor 110 controls the operation of the node device, the processor 110 may also be referred to as a CPU (Central Processing Unit ). The processor 110 may be an integrated circuit chip with processing capabilities for signal sequences. Processor 110 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The Memory 120 may include a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, an optical disk, or other media capable of storing program instructions, or may be a server storing the program instructions, and the server may send the stored program instructions to other devices for execution, or may also self-execute the stored program instructions.
Memory 120 stores instructions and program data required for operation of processor 110.
The processor 110 is configured to execute instructions to implement the method provided by any one of the embodiments and possible combinations of the networking synchronization methods described above.
In summary, a preset time is set for the networking node, and when the first collaboration synchronization message is received within the preset time, slot synchronization is performed with the corresponding network reference node according to the first collaboration synchronization message. And if the first collaboration synchronization message is not received, the first collaboration synchronization message is used as a network reference node to send the collaboration synchronization message. And after the current control time slot receives the first cooperative synchronization message and completes time slot synchronization with the corresponding network reference node according to the first cooperative synchronization message, forwarding the first cooperative synchronization message in the next control time slot to inform other networking nodes of time slot synchronization. If the second collaboration synchronization message is received after the first collaboration synchronization message is sent, determining a target network reference node from network reference nodes corresponding to the first collaboration synchronization message and the second collaboration synchronization message, so as to perform time slot synchronization with the target network reference node, forwarding the target collaboration synchronization message to inform other networking nodes of performing time slot synchronization when the next control time slot arrives, controlling whether the networking nodes send the collaboration synchronization message or not in the mode of the preset time, and further determining the target network reference node according to comparison of the collaboration synchronization message, thereby rapidly realizing time slot synchronization of nodes in the ad hoc network.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the above-described device embodiments are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units of the other embodiments described above may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as stand alone products. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims (10)

1. A networking synchronization method applied to networking nodes, the method comprising:
responding to the received first collaboration synchronization message in a preset time, performing time slot synchronization based on the first collaboration synchronization message and a corresponding network reference node, and when a next control time slot arrives, sending the first collaboration synchronization message by utilizing the next control time slot to inform other networking nodes of performing time slot synchronization, wherein the first collaboration synchronization message is sent by the control time slot, and the first collaboration synchronization message is initially sent by the network reference node, and the networking node which does not receive the first collaboration synchronization message in the preset time is used as the network reference node;
and in response to receiving at least one second collaboration synchronization message after the first collaboration synchronization message is sent, determining a target network reference node from the network reference nodes corresponding to the first collaboration synchronization message and the network reference nodes corresponding to the at least one second collaboration synchronization message so as to perform time slot synchronization with the target network reference node, and sending a target collaboration synchronization message by using a next control time slot when the next control time slot arrives so as to inform other networking nodes of time slot synchronization.
2. The method according to claim 1, wherein the method further comprises:
and generating the first collaboration synchronization message based on the local time slot information of the networking node in response to the fact that the first collaboration synchronization message is not received within preset time, and sending the first collaboration synchronization message by utilizing the next control time slot when the next control time slot arrives so as to inform other networking nodes of time slot synchronization.
3. The method of claim 1, wherein the determining a target network reference node from the network reference node corresponding to the first collaborative synchronization message and the network reference node corresponding to the at least one second collaborative synchronization message comprises:
acquiring node priorities of the network reference nodes corresponding to the first collaboration synchronization message and the at least one second collaboration synchronization message;
and determining the network reference node with the highest node priority as the target network reference node.
4. A method according to claim 3, wherein said sending a target cooperative synchronization message using a next control slot to notify other of said networking nodes of slot synchronization when said next control slot arrives comprises:
determining the collaboration synchronization message corresponding to the target network reference node as a target collaboration synchronization message;
and when the next control time slot arrives, sending the target cooperative synchronization message by using the next control time slot so as to inform other networking nodes of performing time slot synchronization.
5. The method of claim 4, wherein said sending the target cooperative synchronization message with the next control slot to notify other networking nodes of slot synchronization when the next control slot arrives comprises:
changing node hop count information in the target cooperative synchronization message, wherein the node hop count information is used for determining node hop count grades of the networking nodes relative to the target network reference nodes;
and sending the target collaboration synchronization message by using the next control time slot.
6. The method of claim 1, wherein the preset time is inversely related to a node priority of the networking node, and the higher the node priority of the networking node, the shorter the corresponding preset time.
7. A networking system comprising a network reference node and at least one networking node, the network reference node being derived based on the networking synchronization method of any one of claims 1-6.
8. The networking system of claim 7, wherein the network connection is a network connection,
responding to the abnormality of the network reference node, and marking the networking node with the highest node hop count level for the network reference node as a target networking node;
and carrying out networking synchronization on the target networking node to determine a new network reference node.
9. The networking system of claim 8, wherein the network connection is a network connection,
responding to the network synchronization failure, and marking the network node of the next node hop count level as the target network node;
and carrying out networking synchronization on the target networking node to determine a new network reference node.
10. A node device comprising a memory and a processor, the memory for storing program data, the program data being executable by the processor to implement the method of any of claims 1-6.
CN202310611992.0A 2023-05-24 2023-05-24 Networking synchronization method, networking system and node equipment Pending CN116634550A (en)

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