High-speed mobile platform asynchronous network merging method, equipment and medium

Abstract

The invention provides an asynchronous network merging method and device for a high-speed mobile platform and a medium, and the method comprises the steps: taking one network as a main network and the other network as a slave network in a detection period for two networks to be merged; the merging method comprises the following steps: a master node of a slave network detects a synchronization signal sent by a master node from a master network in a detection period, judges whether a connected member node exists in the slave network when receiving the synchronization signal, and directly performs two-stage time synchronization and receives a network management message to complete merging with the master network if the connected member node does not exist in the slave network; if yes, time synchronization of all nodes of the slave network is completed in a delay time synchronization mode, and network management information is received to complete combination with the master network. According to the invention, a delay time synchronization mode is adopted, so that the internal connection of the networks is still kept during the merging period of the two networks, and network management messages can still be interacted.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wireless communication networking technology, in particular to a high-speed mobile platform asynchronous network merging method, device and medium. BACKGROUND

[0002] Wireless Ad Hoc Network (WANET) is a network formed by a plurality of nodes cooperating with each other through wireless connection, which is a non-infrastructure network. It is widely used in both civilian and military fields. The main forms include: mobile ad hoc network, vehicle ad hoc network, wireless sensor network, flight ad hoc network, etc.

[0003] In a wireless ad hoc network in a high-speed mobile platform, due to the characteristics of high speed, high dynamics, and rapid changes of the platform, it is difficult to quickly build a network link, stable communication, low communication rate, and large capacity transmission. In a directional link communication system, time division multiplexing, space division multiplexing, frequency division multiplexing, and code division multiplexing are used to increase the overall communication bandwidth of the network, enhance the anti-interference and anti-interception capabilities. At the same time, directional antenna communication has the characteristics of high concealment, low interception, strong interference, high speed, and low power. In the ad hoc network, the requirement for external time input is reduced, and the network internally uses self-synchronization to align the time. The time of nodes in different networks is asynchronous. The traditional networking method has the disadvantage of large network merging time overhead. SUMMARY

[0004] The embodiments of the present application provide a high-speed mobile platform asynchronous network merging method, device and medium to solve the problems in the background art.

[0005] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0006] According to a first aspect of the embodiments of the present application, a high-speed mobile platform asynchronous network merging method is provided. For two networks to be merged, one of the networks is taken as a master network and the other network is taken as a slave network in a detection period. The merging method comprises: The master node of the slave network detects a synchronization signal sent by the master node of the master network in the detection period. When the synchronization signal is received, it is determined whether there is a connected member node inside the slave network. If not, two-level time synchronization is directly performed, and network management messages are received to complete merging with the master network. If there is, a delay time synchronization method is used to complete time synchronization of all nodes of the slave network, and network management messages are received to complete merging with the master network.

[0007] According to an embodiment of the present application, the two-level time synchronization specifically comprises: When the synchronization signal is received, time slot boundary synchronization is performed. Upon receiving the network entry message, time synchronization is performed.

[0008] According to one embodiment of the present application, the time synchronization from all nodes of the network is completed by using the time delay synchronization mode, and the merging with the master network is completed by receiving the network management message, and specifically includes: After the synchronization signal is captured, it is determined from the master node of the slave network whether a time adjustment announcement message has been sent, if yes, it indicates that the local time of the slave network is consistent with the master network, and the network entry message is directly received and answered, the network management message is received and sent, the link connection is established, and the slave node of the master network is formed; if not, the time difference value between the master node of the slave network and the master network is determined, and a time adjustment announcement message is sent to other nodes of the slave network to perform time synchronization operation, and the synchronization signal is continuously captured.

[0009] According to one embodiment of the present application, the time difference value between the master node of the slave network and the master network is determined, and a time adjustment announcement message is sent to other nodes of the slave network to perform time synchronization operation, and specifically includes: The master node of the slave network performs time slot alignment with the master network when the synchronization signal is captured, and records the original time axis; Upon receiving the network entry message, the time difference value between the local and the master network is calculated, and the local time is adjusted back to the original time axis; The master node of the slave network broadcasts and sends a time adjustment announcement message including the time difference value in the slave network; Other nodes in the slave network complete local time adjustment at the same time with the master node of the slave network according to the time adjustment announcement message.

[0010] According to one embodiment of the present application, the time adjustment announcement message includes the time for adjusting the local time and the time difference value.

[0011] According to one embodiment of the present application, the time for adjusting the local time is not more than the time for capturing the synchronization signal next time.

[0012] According to one embodiment of the present application, after the master node of the slave network becomes the slave node of the master network, the network management message is continuously sent to other nodes in the slave network by using the time slot definition of the slave network; other nodes enter the master network according to the network management message, and subsequently directly communicate with the master node of the master network according to the time slot definition of the master network.

[0013] According to one embodiment of the present application, the synchronization signal uses a waveform design with only a synchronization segment.

[0014] According to a second aspect of the present application, an electronic device is provided, including: at least one processor; and a memory connected in communication with the at least one processor; The memory stores instructions executable by the at least one processor, and the at least one processor executes the method according to any one of the first aspect by executing the instructions stored in the memory.

[0015] According to a third aspect of the present application, a computer readable storage medium is provided for storing instructions which, when executed, cause the method according to the first aspect to be implemented.

[0016] Compared with the prior art, the beneficial effects of the above technical solutions are: 1. The present application adopts the delay time synchronization mode, so that the network internal connection is still maintained during the merging of two networks, and the network management messages can still be interacted.

[0017] 2. The time for merging all members of the network into the new network is shortened, and the time overhead of network merging is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. It is apparent that the accompanying drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 The single node networking flowchart of the embodiment of the present application.

[0020] Figure 2 The high-speed mobile platform asynchronous network merging scenario schematic diagram of the embodiment of the present application.

[0021] Figure 3 The high-speed mobile platform asynchronous network merging method flowchart of the embodiment of the present application.

[0022] Figure 4 The node behavior timing diagram in the detection period of the embodiment of the present application.

[0023] Figure 5 The delay time synchronization flowchart of the embodiment of the present application.

[0024] Figure 6 The network merging flowchart of the other nodes in the network of the embodiment of the present application.

[0025] Figure 7 The structural schematic diagram of an electronic device according to the embodiment of the present application. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar modules or modules with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0027] In a directional self-organizing network in a general high-speed mobile platform scenario, the networking process is shown in Figure 1 For a single node to enter the network, the network master node continuously sends a probe synchronization signal after starting network detection, and the node to be entered continuously detects the network until the synchronization signal is captured in the space domain, and the time slot boundary is synchronized with the network master node. Subsequently, network message interaction is performed to obtain the information of the other party's time and location, so that subsequent network management message interaction can be performed using a narrow beam direction to realize network connection, and the node to be entered becomes a slave node in the network, completing the network entry process. However, for two networks that have completed networking and have multiple network members connected, when the network is explored, the slave node of the slave network is synchronized with the master node of the master network, which will cause the slave node of the slave network to be completely disconnected from the master node link, and all slave nodes repeat the network entry process to enter the master network. Due to the difficulty of chain building, more time is wasted for network entry, the available time for network business communication is reduced, and the network merging time overhead is large.

[0028] Based on this, the embodiments of the present application propose a high-speed mobile platform asynchronous network merging method, which can realize continuous networking and fast merging of the slave network into the master network under the condition that multiple sub-networks exist simultaneously. It is particularly suitable for the scenario of merging two networks into one network in a high-dynamic platform directional communication system that does not depend on time.

[0029] Before introducing the network merging method of the embodiments of the present application, the two networks to be merged need to be explained, please refer to Figure 2 Multiple high-speed mobile platforms are network nodes. Due to the difference in spatial position, they cannot enter the same network in the early stage and only establish links with a few nodes around them. The link establishment process is shown in Figure 1 The multiple nodes connected with the master node jointly form a network, as shown in Figure 2 Node 1 in FIG. 4 serves as a master node and forms network 1 with node 2, node 3 and node 4, and node 5 serves as a master node and forms network 2 with node 6 and node 7. Network 1 and network 2 run independently and asynchronously and cannot communicate data. Only in the detection period, node 1 and node 5 are temporarily assigned an identity according to a probability, acting as an initiator or receiver of detection.

[0030] In this embodiment, in the detection period, one of the networks (network 1) acts as the master network, and the other network (network 2) acts as the slave network. At this time, node 1 in network 1 acts as the master node of the master network and sends the synchronization signal covering the whole space in the detection period, and node 5 of network 2 acts as the master node of the slave network and polls the detection synchronization signal covering the whole space in the detection period. In an embodiment, the roles of the two networks to be merged can be interchanged.

[0031] Please refer to Figure 3 The high-speed moving platform asynchronous network merging method specifically includes that the master node of the slave network detects the synchronization signal sent by the master node of the master network in the detection period, when the synchronization signal is received, it is judged whether there is a connected member node in the slave network, if not, two-level time synchronization is directly performed, and the network management message is received to complete the merging with the master network; if yes, the delay time synchronization mode is used to complete the time synchronization of all nodes of the slave network, and the network management message is received to complete the merging with the master network.

[0032] The network merging method provided in the embodiments of the present application meets the needs of single node networking and the needs of merging a network containing multiple nodes with other networks.

[0033] In order to more clearly introduce the specific implementation process of the network merging method of the embodiments of the present application, first, the network merging method of the embodiments of the present application will be described below in combination with Figure 4 The behavior time sequence of the master nodes of the master network and the slave network is described.

[0034] In a detection period, the master node of the master network continuously sends N synchronization signals to ensure that the synchronization signal is sent in the whole space. After sending the detection signal, the network entry message is directly sent, and then the network entry response message is received. If the network entry response message is received, the network management message is interacted in the subsequent network management receiving and transmitting time slot. Whether the receiving end receives the signal or not, the behavior time of the master node of the master network is fixed. In an embodiment, the synchronization signal adopts a waveform design with only a synchronization segment, which enhances the anti-interference ability, reduces the length of the wireless signal, and shortens the time of polling the whole space in the detection period.

[0035] The master node of the slave network detects the synchronization signal at all times. In order to increase the sensitivity of the detection signal, the receiving antenna polls the whole space in a directional narrow beam, and only after the synchronization signal is captured, the network entry message is received, otherwise the detection signal behavior is always executed. After receiving the network entry message, the directional antenna is aimed at the master node, and the network entry response message is sent. The network management message is interacted in the subsequent network management receiving and transmitting time slot.

[0036] The network merging method of the present embodiment focuses on the processing after the synchronization signal is captured, which is specifically as follows: For the case that there is only one node in the slave network, refer to Figure 1The process involves establishing the link, which is achieved through a two-stage time synchronization method. Specifically, time slot boundary synchronization is completed upon receiving a synchronization signal; absolute time information is transmitted via a network access message, and absolute time synchronization is performed upon receiving the network access message, after which the node can access the main network.

[0037] For cases where the network contains multiple nodes establishing link connections, please refer to the following example in this embodiment. Figure 5 Time synchronization with the main network is achieved using a delayed time synchronization method, specifically: During the detection period, the master node of the slave network continuously attempts to capture the synchronization signal at the detection frequency until it does. After capturing the synchronization signal, the master node of the slave network determines whether a time adjustment notification message has been sent. If so, it means that the local time of the slave network is consistent with that of the master network, and it directly receives and responds to the network entry message, sends and receives network management messages, establishes a link connection, and becomes a slave node of the master network. If not, the master node of the slave network determines the time difference with the master network and sends a time adjustment notification message to other nodes in the slave network to perform time synchronization operations and continues to capture the synchronization signal.

[0038] In this embodiment, when capturing synchronization signals from the network's master node, different processing procedures are executed during the initial capture and the second capture.

[0039] After the master node in the slave network initially captures the synchronization signal, it obviously hasn't sent a time adjustment notification message yet. Therefore, the master node temporarily adjusts its local time to align with the master network's timeline and records the original timeline. Upon receiving the network entry message, it records the message's arrival time and parses the location and master node time information from the message. Based on these three parameters, it calculates the time difference between its local time and the master network's time, and jumps its local time back to the original timeline, ensuring time synchronization among all nodes in the slave network. Since no network entry response is sent at this point, there is no interaction with network management messages, and the network entry process cannot be completed. It then returns to continue attempting to capture the synchronization signal. This method allows the slave network to maintain internal network connectivity and exchange network management messages during the merging process.

[0040] Simultaneously, within the network, the master node also broadcasts a time adjustment announcement message to other nodes. This message includes the agreed-upon time for adjusting the local time and the time difference. Other nodes in the network adjust their local time simultaneously with the master node, based on the time adjustment announcement message.

[0041] It should be noted that in this embodiment, the time for adjusting the local time is agreed to be no later than the time when the synchronization signal is captured next.

[0042] When the slave node of the network captures the synchronization signal again, it is determined that the time adjustment announcement message has been sent, indicating that all master nodes in the network have completed local time adjustment, i.e., have been synchronized with the master network time, and at this time, the time does not need to be adjusted. The slave node of the network receives and responds to the network entry message, transmits and receives the network management message, and establishes a link connection according to the process, and becomes a slave node of the master network.

[0043] In order to more clearly describe the delay time synchronization method of the embodiment of the present application, the following will be combined with the accompanying drawings to describe the method in detail. Figure 5 The complete process is described as follows: S101, entering a detection period.

[0044] S102, detecting a synchronization signal from a master node of the network, and after capturing the synchronization signal, determining whether a time adjustment announcement message has been sent. If yes, entering S108, otherwise, entering S103.

[0045] S103, completing temporary time slot synchronization with the master node of the network according to the synchronization signal, and recording an original time axis.

[0046] S104, determining whether a network entry message is received. If no, entering S102, if yes, entering S105.

[0047] S105, calculating a time difference value between the local time and the master network time, and jumping back to the original time axis of the master node of the network.

[0048] S106, broadcasting a time adjustment announcement message from the master node of the network, the time adjustment announcement message including a time for adjusting the local time and the time difference value.

[0049] S107, reaching the agreed time, and all nodes in the network simultaneously adjust the time according to the time difference value to achieve time synchronization between the slave network and the master network, and entering S102.

[0050] S108, determining whether a network entry message is received. If no, entering S102, if yes, entering S109.

[0051] S109, sending a network entry response message from the master node of the network, and preparing to receive a network management message.

[0052] S110, if the network management message is received, the network entry is completed, if the network management message is not received, returning to S102.

[0053] After becoming a slave node of the master network from the master node of the network, the network management message is still sent to other nodes in the slave network according to the slave network time slot definition, and the content contains network member, role and other parameters, and after the other nodes receive the message, the local network parameters are updated, and the master network is directly entered, and subsequent communication with the master node of the master network is directly performed according to the master network time slot definition, and the network merging is completed.

[0054] Specifically, please refer to Figure 6 In the normal network management message interaction of the slave network, when the time adjustment announcement message is received, the agreed time and the adjusted time difference value in the message are parsed, and the local time is adjusted at the agreed time. Since the time is adjusted at the same time, the slave nodes and the master node still maintain synchronization, and the network management message interaction can be completed, and when the network management message received indicates that the master node of the network changes, it indicates that the master node of the current slave network has merged into the new network, and the local network parameter information is modified, indicating that the node has also joined the new network, and the network merging is completed.

[0055] The application adopts the temporary time adjustment mode to ensure that the two networks to be merged still maintain the network internal connection during the merging and can interact the network management message, shorten the time for merging all members of the slave network into the new network, and reduce the time cost of network merging.

[0056] Based on the same technical concept, the embodiment of the application also provides an electronic device which can realize the high-speed mobile platform asynchronous network merging method flow provided by the above-mentioned embodiment of the application. In an embodiment, the electronic device can be a server, a terminal device or other electronic device. As shown in Figure 7 The electronic device can include: At least one processor and a memory connected with the at least one processor, and the specific connection medium between the processor and the memory in the embodiment of the application is not limited, Figure 7 In the embodiment, the connection between the processor and the memory is taken by way of example through a bus. The bus is represented by a thick line in Figure 7 The connection mode between other components is only schematically illustrated, and is not limited. The bus can be divided into an address bus, a data bus, a control bus, etc., and for the convenience of representation, Figure 7 In the embodiment, only one thick line is used to represent the bus, but it does not mean that there is only one bus or only one type of bus. Alternatively, the processor can also be called a controller, and the name is not limited.

[0057] In the embodiment of the application, the memory stores instructions executable by the at least one processor, and the at least one processor can execute the high-speed mobile platform asynchronous network merging method discussed above by executing the instructions stored in the memory. The processor can realize Figure 7 The functions of each module in the device shown in

[0058] The processor is the control center of the apparatus, and can utilize various interfaces and lines to connect various parts of the control device, and through running or executing instructions stored in the memory and calling data stored in the memory, the apparatus can process data and perform various functions, thereby monitoring the apparatus as a whole.

[0059] In an alternative design, the processor can include one or more processing units, and the processor can integrate an application processor and a modem processor, wherein the application processor mainly processes operating systems, user interfaces, and application programs, and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor. In some embodiments, the processor and the memory can be implemented on the same chip, and in some embodiments, they can also be implemented on separate chips respectively.

[0060] The processor can be a general processor, such as a CPU, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general processor can be a microprocessor or any conventional processor. The steps of the high-speed mobile platform asynchronous network merging method disclosed in the embodiments of the present application can be directly embodied by a hardware processor for execution, or executed by a combination of hardware and software modules in the processor.

[0061] The memory is a non-volatile computer readable storage medium, and can be used to store non-volatile software programs, non-volatile computer executable programs, and modules. The memory can include at least one type of storage medium, such as flash memory, hard disk, multimedia card, card-type memory, random access memory (RAM), static random access memory (SRAM), programmable read only memory (PROM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), magnetic memory, magnetic disk, optical disk, etc. The memory can be any other medium capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by a computer, but is not limited to this. The memory in the embodiments of the present application can also be a circuit or any other device capable of realizing a storage function, used to store program instructions and / or data.

[0062] By programming the processor, the code corresponding to the high-speed moving platform asynchronous network merging method introduced in the foregoing embodiments can be fixed into the chip, so that the chip can execute the steps of the method of the foregoing embodiments at runtime. How to program the processor is a technology known to those skilled in the art, and will not be described here.

[0063] Based on the same inventive concept, the embodiments of the present application also provide a storage medium storing computer instructions, which, when executed on a computer, cause the computer to perform the high-speed moving platform asynchronous network merging method discussed above.

[0064] In some optional embodiments, the various aspects of the high-speed moving platform asynchronous network merging method can also be implemented in the form of a program product, which includes program codes for causing the control device to execute the steps of the high-speed moving platform asynchronous network merging method according to various exemplary embodiments of the present application described in the present specification when the program product is executed on the device.

[0065] It should be noted that although several units or sub-units of the device are mentioned in the foregoing detailed description, such division is merely exemplary and not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more units described above can be embodied in one unit. Conversely, the features and functions of one unit described above can be further divided into units embodied by multiple units. In addition, although the operations of the method of the present application are described in a particular order in the accompanying drawings, this does not require or imply that the operations must be performed in that particular order, or that all of the shown operations must be performed to achieve the desired result. Additionally or alternatively, certain steps can be omitted, a plurality of steps can be combined into one step, and / or one step can be divided into a plurality of steps.

[0066] Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD ROM, optical storage, etc.) containing computer-usable program code.

[0067] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a server, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0068] Program code for performing the operations of this invention can be written using any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0069] In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0070] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0071] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0072] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A method for asynchronous network merging in a high-speed mobile platform, characterized in that, For two networks to be merged, during the probing period, one network is designated as the master network and the other as the slave network; The merging method includes: The slave network's master node detects synchronization signals sent from the master node of the main network during the detection period. Upon receiving a synchronization signal, it determines whether there are any connected member nodes within the slave network. If not, it directly performs two-level time synchronization and receives network management messages to complete the merging with the main network. If there are, it uses delayed time synchronization to complete the time synchronization of all nodes in the slave network and receives network management messages to complete the merging with the main network.

2. The asynchronous network merging method for high-speed mobile platforms according to claim 1, characterized in that, The two-level time synchronization specifically includes: Upon receiving a synchronization signal, time slot boundary synchronization is performed; Upon receiving a network access message, time synchronization is performed.

3. The asynchronous network merging method for high-speed mobile platforms according to claim 1 or 2, characterized in that, The method of using delayed time synchronization to achieve time synchronization from all nodes in the network and receiving network management messages to complete the merging with the main network specifically includes: After capturing the synchronization signal, the slave node determines whether a time adjustment notification message has been sent. If so, it means that the local time of the slave network is consistent with that of the master network. The slave node directly receives and responds to the network entry message, sends and receives network management messages, establishes a link connection, and becomes a slave node of the master network. If not, the slave node determines the time difference with the master network and sends a time adjustment notification message to other nodes in the slave network to perform time synchronization operations and continues to capture synchronization signals.

4. The asynchronous network merging method for high-speed mobile platforms according to claim 3, characterized in that, The master node determines the time difference with the main network and sends a time adjustment notification message to other nodes in the slave network to perform time synchronization operations, specifically including: When the master node of the network captures the synchronization signal, it aligns with the main network in time slots and records the original timeline. Upon receiving the network access message, calculate the time difference between the local time and the main network, and adjust the local time back to the original timeline. The master node of the network broadcasts a time adjustment announcement message, including the time difference, to the slave network; Other nodes in the network adjust their notification messages based on the time, and complete the local time adjustment at the same time as the master node in the network.

5. The asynchronous network merging method for high-speed mobile platforms according to claim 4, characterized in that, The time adjustment notification message includes the agreed-upon time for adjusting the local time and the time difference.

6. The asynchronous network merging method for high-speed mobile platforms according to claim 5, characterized in that, The agreed-upon time for adjusting the local time shall not exceed the time of the next capture of a synchronization signal.

7. The asynchronous network merging method for high-speed mobile platforms according to claim 3, characterized in that, After a node becomes a slave node of a master network, it continues to send network management messages to other nodes in the slave network using the slave network timeslot definition. Other nodes enter the master network according to the network management messages and subsequently communicate directly with the master node of the master network according to the master network timeslot definition.

8. The asynchronous network merging method for high-speed mobile platforms according to claim 1, characterized in that, The synchronization signal uses a waveform design with only a synchronization segment.

9. An electronic device, characterized in that, include: At least one processor; and a memory communicatively connected to the at least one processor; The memory stores instructions executable by the at least one processor, which executes the instructions stored in the memory to perform the method as described in any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store instructions that, when executed, cause the method as described in any one of claims 1 to 8 to be implemented.

Images