Equipment communication method and device in non-broadcast narrowband network, equipment and medium

Abstract

The invention discloses an equipment communication method and device in a non-broadcast narrowband network, equipment and a medium, and relates to the technical field of computer network communication. The method is applied to a master node device in a non-broadcast network, and comprises the following steps: sending a logic address request to a slave node device in the non-broadcast network; receiving a logic address returned by each slave node device, and writing the logic address into an address mapping table; and synchronizing the address mapping table to each slave node device, so that each slave node device communicates based on the address mapping table. According to the technical scheme provided by the invention, the address mapping table is generated and provided for each node, so that the equipment in the non-broadcast network does not need to be bound with the physical address any more, and can communicate by using the logical address, thereby solving various rigidity problems caused by binding the physical address to the equipment, and being capable of widely supporting various narrowband physical networks.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of computer network communication technology, and in particular to a method, apparatus, device, and medium for device communication in a non-broadcast narrowband network. Background Art

[0002] The primary method for exchanging logical address information on existing networks is the TCP / IP ARP protocol, which resolves IP addresses into MAC addresses. The IP address is the logical address of a host (device), and the MAC address is the physical address of the host (device). When one host (device) on a network needs to communicate with another, it needs to know the other host's MAC address. However, application software only knows the other host's IP address, so ARP is needed to map the IP address to the MAC address.

[0003] However, in traditional TCP / IP networks, the ARP protocol relies on broadcast mechanisms to map IP addresses to MAC addresses. This cannot be propagated on networks without broadcast capabilities (such as CAN buses, RapidIO networks, and RS485 networks), resulting in address resolution failures. Furthermore, ARP relies on strong physical load capacity, and its message length is 46 bytes, making it unsuitable for narrowband networks. Summary of the Invention

[0004] Embodiments of the present invention provide a method, apparatus, device, and medium for device communication in a non-broadcast narrowband network, so as to achieve address mapping in the non-broadcast network and support application in a narrowband network.

[0005] In a first aspect, an embodiment of the present invention provides a device communication method in a non-broadcast narrowband network, which is applied to a master node device in the non-broadcast network. The method includes:

[0006] Sending a logical address request to a slave node device in the non-broadcast network;

[0007] receiving the logical addresses returned by the slave node devices, and writing the logical addresses into an address mapping table;

[0008] The address mapping table is synchronized to each of the slave node devices, so that each of the slave node devices communicates based on the address mapping table.

[0009] Optionally, after synchronizing the address mapping table to each of the slave node devices, the method further includes:

[0010] If a new slave node device joins the non-broadcast network, sending a logical address request to the new slave node device;

[0011] Receive the new logical address returned by the new slave node device, and synchronize the new logical address to the other slave node devices.

[0012] Optionally, after synchronizing the address mapping table to each of the slave node devices, the method further includes:

[0013] If a new slave node device joins the non-broadcast network, the address mapping table is synchronized to the new slave node device.

[0014] Optionally, after synchronizing the address mapping table to each of the slave node devices, the method further includes:

[0015] If a target slave node device is removed from the non-broadcast network, the address mapping table locally synchronized by each slave node device is updated according to the target logical address of the target slave node device.

[0016] Optionally, the method further includes:

[0017] The address mapping table is initialized when the device starts up.

[0018] Optionally, after synchronizing the address mapping table to each of the slave node devices, the method further includes:

[0019] Receive synchronization confirmation information returned by each slave node device.

[0020] In a second aspect, an embodiment of the present invention further provides a device communication apparatus in a non-broadcast narrowband network, which is applied to a master node device in a non-broadcast network. The apparatus includes:

[0021] A logical address request module, configured to send a logical address request to a slave node device in the non-broadcast network;

[0022] A mapping table generating module, configured to receive the logical addresses returned by the slave node devices and write the logical addresses into an address mapping table;

[0023] A mapping table synchronization module is used to synchronize the address mapping table to each of the slave node devices, so that each of the slave node devices communicates based on the address mapping table.

[0024] In a third aspect, an embodiment of the present invention further provides a computer device, the computer device comprising:

[0025] one or more processors;

[0026] a memory for storing one or more programs;

[0027] When the one or more programs are executed by the one or more processors, the one or more processors implement the device communication method in a non-broadcast narrowband network provided by any embodiment of the present invention.

[0028] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the device communication method in a non-broadcast narrowband network provided by any embodiment of the present invention.

[0029] In a fifth aspect, an embodiment of the present invention further provides a computer program product, which includes a computer program. When the program is executed by a processor, the device communication method in a non-broadcast narrowband network provided by any embodiment of the present invention is implemented.

[0030] An embodiment of the present invention provides a device communication method in a non-broadcast narrowband network, which is applied to a master node device in the non-broadcast network. The method first sends a logical address request to a slave node device in the non-broadcast network, then receives the logical address returned by each slave node device, writes each logical address into an address mapping table, and then synchronizes the generated address mapping table to each slave node device, so that each slave node device can communicate based on the address mapping table. The device communication method in a non-broadcast narrowband network provided by the embodiment of the present invention generates an address mapping table and provides it to each node, so that devices in the non-broadcast network no longer need to be bound to a physical address, but can use logical addresses to communicate, thereby solving various rigidity problems caused by binding devices to physical addresses, and can widely support various narrowband physical networks. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A flowchart of a method for device communication in a non-broadcast narrowband network provided in Embodiment 1 of the present invention;

[0032] Figure 2 A schematic diagram of the structure of a device communication apparatus in a non-broadcast narrowband network provided in a second embodiment of the present invention;

[0033] Figure 3 This is a structural diagram of a computer device provided in Example 3 of the present invention. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0035] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the steps as sequential processes, many of the steps can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the steps can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the accompanying drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0036] Example 1

[0037] Figure 1 This is a flowchart of a device communication method in a non-broadcast narrowband network provided by the first embodiment of the present invention. This embodiment is applicable to situations where communication is performed by mapping logical addresses in a non-broadcast narrowband network. The method can be executed by a device communication apparatus in a non-broadcast narrowband network provided by an embodiment of the present invention. The apparatus can be implemented by hardware and / or software and can generally be integrated into a computer device. The method is applied to a master node device in a non-broadcast network, such as Figure 1 As shown, the specific steps include:

[0038] S11. Send a logical address request to a slave node device in the non-broadcast network.

[0039] S12. Receive the logical address returned by each slave node device, and write the logical address into an address mapping table.

[0040] S13. Synchronize the address mapping table to each of the slave node devices, so that each of the slave node devices communicates based on the address mapping table.

[0041] Specifically, a master-slave architecture can be used to pre-divide all devices in a designated non-broadcast network into master nodes and slave nodes. Based on this architecture, the master node can send logical address requests to all slave nodes. The master node knows the physical address of each slave node and can then send requests to each slave node based on the physical address. A slave node can remain in a waiting state for requests and, upon receiving a logical address request, return its own logical address to the master node. Upon receiving the logical address returned by the slave node, the master node can match it with the corresponding physical address and write it into an address mapping table. After completing the logical address writing for all slave nodes, the master node can synchronize the generated address mapping table to each slave node. After receiving the address mapping table, the slave node can synchronize and store it locally. When communicating with other slave nodes, the slave node can use the address mapping table to query the corresponding physical address for communication, making the physical address transparent. After completing the logical address return or address mapping table synchronization, the slave node can clear the current request state and return to the waiting state to prepare for the next request. This process requires a minimum message length of 1 byte, effectively supporting narrowband physical networks.

[0042] In an optional embodiment, after synchronizing the address mapping table to each of the slave node devices, it also includes: if a new slave node device joins the non-broadcast network, sending a logical address request to the new slave node device; receiving a new logical address returned by the new slave node device, and synchronizing the new logical address to the other slave node devices.

[0043] Specifically, it can also support the dynamic addition of devices in the network. When a new slave node device joins, the master node device can send a logical address request to the new slave node device. Similarly, after receiving the logical address request, the new slave node device can return its own new logical address to the master node device. After receiving the new logical address, the master node device can write the new logical address into the address mapping table and synchronize the updated address mapping table to each slave node device, or it can directly synchronize the new logical address and the corresponding new physical address to each slave node device. After receiving the updated address mapping table or the new logical address and the corresponding new physical address, the original slave node device can update the locally stored address mapping table, so that the original slave node devices can communicate with the newly added new slave node device based on the updated address mapping table.

[0044] In an optional implementation, after synchronizing the address mapping table to each of the slave node devices, the method further includes: if a new slave node device joins the non-broadcast network, synchronizing the address mapping table to the new slave node device.

[0045] Specifically, when a new slave node device joins, the master node device can also synchronize its existing address mapping table to the new slave node device, so that the new slave node device can communicate with the existing slave node devices. Furthermore, the master node device can also update the address mapping table based on the new logical address of the new slave node device and then synchronize it to the new slave node device and the existing slave node devices.

[0046] In an optional embodiment, after synchronizing the address mapping table to each of the slave node devices, it also includes: if a target slave node device is removed in the non-broadcast network, updating the address mapping table locally synchronized by each of the slave node devices according to the target logical address of the target slave node device.

[0047] Specifically, it can also support dynamic deletion of devices in the network. When a target slave node device is removed from the original slave node devices, the master node device can remove the target logical address of the target slave node device from the existing address mapping table and synchronize the updated address mapping table to other slave node devices except the target slave node device. It can also directly send a synchronization request to other slave node devices to enable other slave node devices to remove the relevant information of the target logical address in the locally stored address mapping table.

[0048] In an optional embodiment, the method further includes initializing the address mapping table upon device startup. Specifically, the master node device may initialize a local address mapping table upon device startup to prepare for querying the logical address writes of each slave node device, thereby generating the latest address mapping table. Similarly, each slave node device may also initialize a local address mapping table upon device startup to prepare for receiving the address mapping table sent by the master node device for synchronization.

[0049] In an optional embodiment, after synchronizing the address mapping table to each of the slave node devices, the method further includes: receiving synchronization confirmation information returned by each of the slave node devices. Specifically, the slave node device may return synchronization confirmation information to the master node device after completing local synchronization of the address mapping table, so that the master node device can confirm that each of the slave node devices has been successfully synchronized. Furthermore, if the synchronization confirmation information returned by a slave node device is not received within a certain period of time, the address mapping table of the slave node device may be resynchronized.

[0050] The technical solution provided by an embodiment of the present invention is applied to a master node device in a non-broadcast network. The solution first sends a logical address request to a slave node device in the non-broadcast network, then receives the logical address returned by each slave node device, writes each logical address into an address mapping table, and then synchronizes the generated address mapping table to each slave node device, enabling each slave node device to communicate based on the address mapping table. By generating an address mapping table and providing it to each node, devices in the non-broadcast network no longer need to be bound to a physical address, but can instead communicate using logical addresses. This solves the various rigidity issues associated with device binding to physical addresses and can widely support various narrowband physical networks.

[0051] Example 2

[0052] Figure 2 This is a schematic diagram of the structure of a device communication apparatus in a non-broadcast narrowband network provided in the second embodiment of the present invention. The apparatus can be implemented by hardware and / or software and can generally be integrated into a computer device to execute the device communication method in a non-broadcast narrowband network provided in any embodiment of the present invention. The apparatus is applied to a master node device in a non-broadcast network, such as Figure 2 As shown, the device includes:

[0053] A logical address request module 21, configured to send a logical address request to a slave node device in the non-broadcast network;

[0054] A mapping table generating module 22 is configured to receive the logical addresses returned by the slave node devices and write the logical addresses into an address mapping table;

[0055] The mapping table synchronization module 23 is configured to synchronize the address mapping table to each of the slave node devices, so that each of the slave node devices communicates based on the address mapping table.

[0056] The technical solution provided by an embodiment of the present invention is applied to a master node device in a non-broadcast network. The solution first sends a logical address request to a slave node device in the non-broadcast network, then receives the logical address returned by each slave node device, writes each logical address into an address mapping table, and then synchronizes the generated address mapping table to each slave node device, enabling each slave node device to communicate based on the address mapping table. By generating an address mapping table and providing it to each node, devices in the non-broadcast network no longer need to be bound to a physical address, but can instead communicate using logical addresses. This solves the various rigidity issues associated with device binding to physical addresses and can widely support various narrowband physical networks.

[0057] On the basis of the above technical solution, optionally, the device further includes:

[0058] A new address request module is configured to send a logical address request to a new slave node device if a new slave node device joins the non-broadcast network after synchronizing the address mapping table to each slave node device;

[0059] The new address synchronization module is used to receive the new logical address returned by the new slave node device and synchronize the new logical address to the other slave node devices.

[0060] On the basis of the above technical solution, optionally, the device further includes:

[0061] The new device synchronization module is configured to synchronize the address mapping table to each of the slave node devices after synchronizing the address mapping table to the new slave node device if a new slave node device joins the non-broadcast network.

[0062] On the basis of the above technical solution, optionally, the device further includes:

[0063] The device removal and update module is used to update the address mapping table locally synchronized by each slave node device according to the target logical address of the target slave node device if a target slave node device is removed in the non-broadcast network after the address mapping table is synchronized to each slave node device.

[0064] On the basis of the above technical solution, optionally, the device further includes:

[0065] The mapping table initialization module is used to initialize the address mapping table when the device starts.

[0066] On the basis of the above technical solution, optionally, the device further includes:

[0067] The confirmation information receiving module is used to receive synchronization confirmation information returned by each slave node device after synchronizing the address mapping table to each slave node device.

[0068] The device communication apparatus in a non-broadcast narrowband network provided by an embodiment of the present invention can execute the device communication method in a non-broadcast narrowband network provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0069] It is worth noting that in the embodiment of the device communication apparatus in the above-mentioned non-broadcast narrowband network, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0070] Example 3

[0071] Figure 3 The structural diagram of the computer device provided in the third embodiment of the present invention shows a block diagram of an exemplary computer device suitable for implementing the embodiment of the present invention. Figure 3 The computer device shown is only an example and should not limit the functionality and scope of use of the embodiments of the present invention. Figure 3 As shown, the computer device includes a processor 31, a memory 32, an input device 33 and an output device 34; the number of processors 31 in the computer device can be one or more. Figure 3 Taking a processor 31 as an example, the processor 31, memory 32, input device 33 and output device 34 in the computer device can be connected through a bus or other means. Figure 3 The bus connection is taken as an example.

[0072] Memory 32, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the device communication method in a non-broadcast narrowband network according to embodiments of the present invention (for example, the logical address request module 21, mapping table generation module 22, and mapping table synchronization module 23 in the device communication apparatus in a non-broadcast narrowband network). Processor 31 executes the software programs, instructions, and modules stored in memory 32 to execute various functional applications and data processing of the computer device, thereby implementing the aforementioned device communication method in a non-broadcast narrowband network.

[0073] The memory 32 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the computer device. Furthermore, the memory 32 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state memory device. In some instances, the memory 32 may further include memory remotely located relative to the processor 31, and these remote memories may be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0074] The input device 33 can be used to receive the logical address returned by each slave node device, and generate key signal input related to user settings and function control of the computer device, etc. The output device 34 can be used to send logical address requests to each slave node device, etc.

[0075] Example 4

[0076] Embodiment 4 of the present invention further provides a storage medium containing computer-executable instructions. When the computer-executable instructions are executed by a computer processor, the computer-executable instructions are used to perform a method for device communication in a non-broadcast narrowband network. The method includes:

[0077] Sending a logical address request to a slave node device in the non-broadcast network;

[0078] receiving the logical addresses returned by the slave node devices, and writing the logical addresses into an address mapping table;

[0079] The address mapping table is synchronized to each of the slave node devices, so that each of the slave node devices communicates based on the address mapping table.

[0080] The storage medium can be any of various types of memory devices or storage devices. The term "storage medium" is intended to include: installation media, such as CD-ROMs, floppy disks, or tape devices; computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory, such as flash memory, magnetic media (such as hard disks or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the computer system in which the program is executed, or may be located in a different second computer system that is connected to the computer system via a network (such as the Internet). The second computer system may provide program instructions to the computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations (e.g., in different computer systems connected via a network). The storage medium may store program instructions (e.g., embodied as a computer program) that may be executed by one or more processors.

[0081] Of course, the computer executable instructions of a storage medium containing computer executable instructions provided by an embodiment of the present invention are not limited to the method operations described above, and can also execute related operations in the device communication method in a non-broadcast narrowband network provided by any embodiment of the present invention.

[0082] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0083] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0084] Through the above description of the embodiments, those skilled in the art can clearly understand that the present invention can be implemented with the help of software and necessary general-purpose hardware. Of course, it can also be implemented with hardware, but in many cases the former is a more preferred embodiment. Based on this understanding, the technical solution of the present invention, or the part that contributes to the existing technology, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0085] Example 5

[0086] Embodiment 5 of the present invention also provides a computer program product, which includes a computer program (also referred to as code, instructions). The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, it is used to execute the device communication method in the non-broadcast narrowband network provided in any of the above embodiments, and has the corresponding beneficial effects of the execution method.

[0087] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for device communication in a non-broadcast narrowband network, characterized in that: Applied to a master node device in a non-broadcast network, the method comprises: Sending a logical address request to a slave node device in the non-broadcast network; receiving the logical addresses returned by the slave node devices, and writing the logical addresses into an address mapping table; The address mapping table is synchronized to each of the slave node devices, so that each of the slave node devices communicates based on the address mapping table.

2. The device communication method in a non-broadcast narrowband network according to claim 1, characterized in that: After synchronizing the address mapping table to each of the slave node devices, the method further includes: If a new slave node device joins the non-broadcast network, sending a logical address request to the new slave node device; Receive the new logical address returned by the new slave node device, and synchronize the new logical address to the other slave node devices.

3. The device communication method in a non-broadcast narrowband network according to claim 1, characterized in that: After synchronizing the address mapping table to each of the slave node devices, the method further includes: If a new slave node device joins the non-broadcast network, the address mapping table is synchronized to the new slave node device.

4. The device communication method in a non-broadcast narrowband network according to claim 1, characterized in that: After synchronizing the address mapping table to each of the slave node devices, the method further includes: If a target slave node device is removed from the non-broadcast network, the address mapping table locally synchronized by each slave node device is updated according to the target logical address of the target slave node device.

5. The device communication method in a non-broadcast narrowband network according to claim 1, characterized in that: The method further comprises: The address mapping table is initialized when the device starts up.

6. The device communication method in a non-broadcast narrowband network according to claim 1, characterized in that: After synchronizing the address mapping table to each of the slave node devices, the method further includes: Receive synchronization confirmation information returned by each slave node device.

7. A device communication apparatus in a non-broadcast narrowband network, characterized in that: A master node device applied to a non-broadcast network, the device comprising: A logical address request module, configured to send a logical address request to a slave node device in the non-broadcast network; A mapping table generating module, configured to receive the logical addresses returned by the slave node devices and write the logical addresses into an address mapping table; A mapping table synchronization module is used to synchronize the address mapping table to each of the slave node devices, so that each of the slave node devices communicates based on the address mapping table.

8. A computer device, characterized in that: include: one or more processors; a memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the device communication method in a non-broadcast narrowband network as claimed in any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the device communication method in a non-broadcast narrowband network as claimed in any one of claims 1 to 6 is implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the method for device communication in a non-broadcast narrowband network according to any one of claims 1 to 6 is implemented.

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