Multi-mode communication method and system based on 2.4 GHz and SUB-1GHz networks

Abstract

The invention discloses a multimode communication method and a multimode communication system based on 2.4 GHz and SUB-1GHz networks. The technical problems of performance contradiction, poor network expansibility, high deployment cost and insufficient equipment cooperation caused by a single network frequency band in the prior art are solved. The method comprises the following steps: S1, constructing a communication architecture fusing an SUB-1GHz network and a 2.4 GHz MESH network; s2, the sewing equipment performs authentication with the gateway through the SUB-1GHz network, and the gateway distributes a 2.4 GHz network key after the authentication is passed; s3, dynamically maintaining a routing table between the devices based on an SUB-1GHz network, and carrying out data relay transmission through a 2.4 GHz MESH network; s4, when the new equipment accesses the network, authentication is carried out through the SUB-1GHz network of the adjacent equipment; and S5, when the equipment fails, copying the parameters of the same model to the failed equipment through the adjacent equipment. The method has the advantages of high speed, wide coverage and low cost expansion.

Description

Technical Field

[0001] The present invention relates to the technical field of sewing equipment communication, and particularly to a multi-mode communication method based on 2.4GHz and SUB-1GHz networks. Background Art

[0002] With the acceleration of the intelligent transformation of the garment manufacturing industry, the networking and Internet of Things (IoT) integration of sewing equipment have become the key technical directions for improving production efficiency. Modern sewing workshops usually deploy a large number of automated devices (such as template machines, pattern machines, etc.). These devices need to receive process files in real time, report their operating status, and support remote parameter configuration. In this scenario, wireless communication technology is the infrastructure connecting devices, servers, and management systems, and its performance directly determines the real-time nature of production scheduling, the efficiency of device collaboration, and the network expansion ability.

[0003] Comparative document CN111308980A discloses a control system for sewing machine process file distribution, including: a sewing machine for receiving and storing the distributed process files; a collection device connected to the sewing machine for obtaining the attribute information of the sewing machine and transmitting the distributed process files to the sewing machine; the attribute information of the sewing machine includes the device identification number of the sewing machine and the process file format used by the sewing machine; a server communicatively connected to at least one of the collection devices for presetting the matching relationship between the device identification number, device type, and process file used by each sewing machine; determining the target sewing machine and the process file required by the target sewing machine, taking the process file as the to-be-distributed process file, and distributing the to-be-distributed process file to the target sewing machine. This solution realizes the remote distribution of process files through a hierarchical architecture of a server, a collection device, and a sewing machine. Specifically, the server matches the process file format according to the device identification number and transmits the file to the target sewing machine through the collection device.

[0004] However, in the process of implementing the technical solution of the present invention in the embodiments of the present application, the inventors of the present application found that the above technology has at least the following technical problems:

[0005] 1. Its communication depends on a single-band network. There is a contradiction between coverage and rate in a single network, and it is impossible to balance communication rate and coverage range, resulting in a performance contradiction caused by a single network band;

[0006] 2. The prior art relies on adding APs or gateways to expand the coverage range, with a complex network architecture, poor network scalability, and high deployment costs;

[0007] 3. Data interaction between devices needs to be relayed through a collection device and a server, lacking a direct cooperation mechanism, unable to share the computing and storage pressure of the gateway, resulting in insufficient device cooperation and dynamic management. Summary of the Invention

[0008] This application provides a multi-mode communication method based on 2.4GHz and SUB-1GHz networks, which solves the technical problems of performance contradictions caused by a single network frequency band in the prior art, poor network scalability, high deployment costs, and insufficient device cooperation and dynamic management. Through the integration of multi-band networks and device cooperation, it realizes high-speed rate, wide coverage, and low-cost expansion of the sewing equipment network, while improving the device access capacity and communication efficiency.

[0009] This application provides a multi-mode communication method based on 2.4GHz and SUB-1GHz networks, which is applied to the sewing equipment network and is characterized by the following steps:

[0010] S1. Build a communication architecture that integrates the SUB-1GHz network and the 2.4GHz MESH network, where:

[0011] The SUB-1GHz network is used for long-distance and low-rate data transmission, including device authentication, routing relationship synchronization, and network parameter configuration;

[0012] The 2.4GHz MESH network is used for short-distance and high-rate data transmission, including firmware upgrade, large file transfer, and collaborative computing between devices;

[0013] S2. The sewing equipment authenticates with the gateway through the SUB-1GHz network. After successful authentication, the gateway distributes the 2.4GHz network key to enable the device to access the 2.4GHz MESH network;

[0014] S3. Devices dynamically maintain the routing table based on the SUB-1GHz network and perform data relay transmission through the 2.4GHz MESH network. The edge device locally caches and calculates the data to share the storage and computing power load of the gateway;

[0015] S4. When a new device joins the network, it authenticates through the SUB-1GHz network of a neighboring device, and the neighboring device forwards the data to the gateway through the 2.4GHz MESH network;

[0016] S5. When a device fails, the same model parameters are copied to the faulty device through a neighboring device to achieve rapid recovery.

[0017] In the above multi-mode communication method based on 2.4GHz and SUB-1GHz networks, the collaborative work between the SUB-1GHz network and the 2.4GHz MESH network includes:

[0018] The SUB-1GHz network is responsible for transmitting network topology information and control instructions, and the 2.4GHz MESH network is responsible for transmitting real-time production data and process files;

[0019] The gateway broadcasts a routing update instruction through the SUB-1GHz network, and the device adjusts the data forwarding path of the 2.4GHz MESH network according to the instruction.

[0020] In the above multi-mode communication method based on 2.4GHz and SUB-1GHz networks, the cooperation calculation between devices specifically includes:

[0021] The edge device preprocesses the received process file, generates compressed or fragmented data, and then transmits it to the target device through the 2.4GHz MESH network;

[0022] The devices share computing power, and neighboring devices assist in completing complex calculation tasks. The calculation results are summarized to the gateway through the SUB-1GHz network.

[0023] In the above multi-mode communication method based on 2.4GHz and SUB-1GHz networks, the authentication process of the new device includes:

[0024] The new device sends an access request to a neighboring device through the SUB-1GHz network;

[0025] The neighboring device forwards the request to the gateway. After the gateway verifies the device identity, it generates a dynamic key and returns it to the new device through the SUB-1GHz network;

[0026] The new device uses the dynamic key to access the 2.4GHz MESH network and updates the local routing table.

[0027] In the above multi-mode communication method based on 2.4GHz and SUB-1GHz networks, the parameter replication and recovery process includes:

[0028] The faulty device sends a recovery request to a neighboring device through the SUB-1GHz network;

[0029] The neighboring device transmits the backup parameters to the faulty device through the 2.4GHz MESH network and confirms the transmission integrity in the SUB-1GHz network;

[0030] After the faulty device restarts, it reconnects to the network based on the recovered parameters.

[0031] In the above multi-mode communication method based on 2.4GHz and SUB-1GHz networks, the SUB-1GHz network uses the 433MHz protocol, and the two networks of 2.4GHz MESH network and SUB-1GHz network realize dynamic allocation of spectrum resources through the gateway.

[0032] A multi-mode communication system based on 2.4GHz and SUB-1GHz networks, characterized by including:

[0033] Multiple sewing devices, each integrated with a SUB-1GHz communication module and a 2.4GHz MESH communication module;

[0034] At least one gateway for managing SUB-1GHz network authentication, key distribution, and routing table synchronization;

[0035] An edge computing node, served by a designated sewing device, responsible for data caching, preprocessing, and computing power sharing;

[0036] The system is configured to execute the above multi-mode communication method based on 2.4GHz and SUB-1GHz networks.

[0037] In the above multi-mode communication system based on 2.4GHz and SUB-1GHz networks, the edge computing node is dynamically elected according to the device computing power load, and the election basis includes CPU utilization, remaining storage space, and network throughput.

[0038] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0039] 1. Due to the adoption of technical means of multi-band network fusion and device collaboration, the performance contradictions caused by a single network band in the prior art, the poor network scalability, high deployment costs, and insufficient device collaboration and dynamic management are effectively solved. Furthermore, the technical effects of high speed, wide coverage, and low-cost expansion of the sewing device network are achieved, while also improving the device access capacity and communication efficiency;

[0040] 2. New devices authenticate and access the network through neighboring devices, and edge devices share the storage and computing power loads of the gateway. Therefore, there is no need to add additional APs or gateways, and the network expansion cost is reduced through device collaboration, simplifying the architecture;

[0041] 3. New devices are authenticated through SUB-1GHz dynamic keys, and faulty devices are restored by parameter replication of neighboring devices, simplifying the device network access process and enhancing authentication security; Quick fault recovery reduces downtime and improves operation and maintenance efficiency;

[0042] 4. Edge devices preprocess data (compress / fragment) before transmission, and the dynamically elected edge nodes allocate tasks according to the load, reducing the computing pressure on the gateway, improving the real-time data processing speed, and reducing network latency. Description of the Drawings

[0043] Figure 1 Is a flowchart of a multi-mode communication method based on 2.4GHz and SUB-1GHz networks.

[0044] Figure 2 Is a structural schematic diagram of a sewing device communication system. Detailed implementation manners

[0045] In an embodiment of the present application, by providing a multi-mode communication method and system based on 2.4 GHz and SUB-1 GHz networks, the technical problems of performance contradictions caused by a single network frequency band, poor network scalability, high deployment cost, and insufficient device cooperation and dynamic management in the prior art are solved, realizing high-speed rate, wide coverage, and low-cost expansion of the sewing equipment network, while improving the device access capacity and communication efficiency.

[0046] The technical solution in the embodiment of the present application for solving the above technical problems has the following general idea:

[0047] It is realized by means of multi-band network fusion and device cooperation. Specifically, a communication architecture integrating the SUB-1 GHz network and the 2.4 GHz MESH network is constructed. The sewing equipment authenticates with the gateway through the SUB-1 GHz network. After the authentication is passed, the gateway distributes the 2.4 GHz network key, enabling the device to access the 2.4 GHz MESH network; devices dynamically maintain the routing table based on the SUB-1 GHz network and perform data relay transmission through the 2.4 GHz MESH network. The edge device locally caches and calculates the data to share the storage and computing power load of the gateway; when a new device accesses the network, it authenticates through the SUB-1 GHz network of the neighboring device, and the neighboring device forwards the data to the gateway through the 2.4 GHz MESH network; when a device fails, the same model parameters are copied to the faulty device by the neighboring device to achieve rapid recovery.

[0048] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0049] Embodiment 1

[0050] As Figure 1 shown, an embodiment of the present application provides a multi-mode communication method based on 2.4 GHz and SUB-1 GHz networks, which is applied to the sewing equipment network and specifically includes the following steps:

[0051] S1. Construct a communication architecture integrating the SUB-1 GHz network and the 2.4 GHz MESH network, where:

[0052] The SUB-1 GHz network is used for long-distance and low-rate data transmission, including device authentication, routing relationship synchronization, and network parameter configuration;

[0053] The 2.4 GHz MESH network is used for short-distance and high-rate data transmission, including firmware upgrade, large file transmission, and device cooperation calculation;

[0054] S2. The sewing equipment authenticates with the gateway through the SUB-1GHz network. After successful authentication, the gateway distributes the 2.4GHz network key, enabling the equipment to access the 2.4GHz MESH network.

[0055] S3. The devices dynamically maintain the routing table based on the SUB-1GHz network and perform data relay transmission through the 2.4GHz MESH network. The edge devices perform local caching and computing on the data to share the storage and computing power load of the gateway.

[0056] S4. When a new device joins the network, it authenticates through the SUB-1GHz network of neighboring devices, and the neighboring devices forward the data to the gateway through the 2.4GHz MESH network.

[0057] S5. When a device fails, the same model parameters are copied to the faulty device through neighboring devices to achieve rapid recovery.

[0058] By integrating the SUB-1GHz network (long distance, low rate) and the 2.4GHz MESH network (short distance, high rate), combined with data relay, edge computing, and dynamic authentication mechanisms between devices, the performance bottleneck of a single network is solved, and a sewing equipment communication network with wide coverage, high bandwidth, and low-cost expansion is realized. At the same time, the device access capacity and operation and maintenance efficiency are improved.

[0059] Among them, the collaborative work of the SUB-1GHz network and the 2.4GHz MESH network includes:

[0060] The SUB-1GHz network is responsible for transmitting network topology information and control instructions, and the 2.4GHz MESH network is responsible for transmitting real-time production data and process files.

[0061] The gateway broadcasts routing update instructions through the SUB-1GHz network, and the devices adjust the data forwarding path of the 2.4GHz MESH network according to the instructions.

[0062] Dual-band division of labor and dynamic routing management (the SUB-1GHz maintains the routing table, and the 2.4GHz dynamically adjusts the path). The SUB-1GHz transmits control instructions to avoid congestion on the high-speed data channel. The 2.4GHz MESH extends the coverage through multi-hop relay to relieve the pressure on a single gateway.

[0063] Specifically, the SUB-1GHz network uses the 433MHz protocol, and the two networks of the SUB-1GHz network and the 2.4GHz MESH network achieve dynamic allocation of spectrum resources through the gateway. Through spectrum resource allocation and multi-hop transmission, the network capacity and anti-interference ability are improved. 433MHz ensures long-distance and low-power communication, and the 2.4GHz MESH network supports high-density device access. Spectrum dynamic allocation avoids channel conflicts and improves the overall resource utilization rate.

[0064] Collaborative computing between devices specifically includes:

[0065] The edge device pre-processes the received process files, generates compressed or fragmented data, and then transmits it to the target device through the 2.4GHz MESH network;

[0066] Computing power is shared between devices, and neighboring devices assist in completing complex computing tasks. The calculation results are aggregated to the gateway through the SUB-1GHz network.

[0067] Edge devices pre-process data (compress / slice) before transmission, reducing gateway computing pressure, improving real-time data processing speed, and reducing network latency. Edge devices can be specified by the system, for example, Figure 2 The sewing device D in the figure serves as an edge computing device.

[0068] Through data relay between devices (forwarding by neighboring devices) and edge computing (local caching and computing), the reliance on gateways is reduced. No additional APs or gateways are required, and device collaboration reduces network expansion costs and simplifies the architecture.

[0069] The new device authentication process includes:

[0070] The new device sends a network access request to the neighboring device via the SUB-1GHz network;

[0071] The neighboring device forwards the request to the gateway, which verifies the device identity, generates a dynamic key, and returns it to the new device via the SUB-1GHz network;

[0072] The new device uses the dynamic key to join the 2.4GHz MESH network and update the local routing table.

[0073] New devices are authenticated through SUB-1GHz dynamic keys, which simplifies the device access process and improves authentication security. When a new device enters, it can be authenticated through the SUB-1GHz network, and after passing, the 2.4GHz network key is distributed, and then it can connect to the 2.4GHz network, achieving high-speed communication on the network through 2.4GHz. If the device cannot connect to the routing gateway, it can achieve network communication through adjacent devices, such as Figure 2 As shown, when a new device F (located outside the coverage of the SUB-1GHz network) is connected to the system, it can send requests to the routing gateway through sewing devices D and B in sequence. After the gateway verifies the device identity, it generates a dynamic key and returns it to the new device through the SUB-1GHz network.

[0074] The parameter copying and recovery process includes:

[0075] The faulty device sends a recovery request to the neighboring devices via the SUB-1GHz network;

[0076] Adjacent devices transmit backup parameters to the faulty device via a 2.4GHz MESH network and confirm the transmission integrity on the SUB-1GHz network;

[0077] After the faulty device restarts, it reconnects to the network based on the restored parameters.

[0078] The faulty device is restored by parameter replication from adjacent devices. Quick fault recovery reduces downtime and improves operation and maintenance efficiency. When a new device enters the network, the parameters of the same model can be copied to the new machine via a handheld terminal, facilitating the debugging of the new machine. Moreover, when the device fault parameter is incorrect, it can be restored by copying the parameters of the same model.

[0079] Embodiment 2

[0080] As Figure 2 shown, the embodiment of the present application provides a sewing device communication system, including:

[0081] Multiple sewing devices, each device integrating a SUB-1GHz communication module and a 2.4GHz MESH communication module; In the figure, A, B, C, D, E, F, G indicate sewing devices, the blue double-headed arrows indicate the 2.4GHz transmission paths, the red double-headed arrows indicate the SUB-1GHz transmission paths, and the two arc dotted lines in the figure respectively represent the 2.4GHz network coverage and the SUB-1GHz network coverage;

[0082] At least one gateway for managing SUB-1GHz network authentication, key distribution, and routing table synchronization;

[0083] The gateway in this embodiment is a routing gateway, and the above sewing devices can communicate with the external Internet through this routing gateway;

[0084] An edge computing node, served by a designated sewing device, responsible for data caching, preprocessing, and computing power sharing;

[0085] In the figure, it is possible to designate sewing device D as the edge computing node, or other sewing devices can also be designated.

[0086] The system is configured to execute the multi-mode communication method based on 2.4GHz and SUB-1GHz networks in Embodiment 1.

[0087] Edge computing nodes are dynamically elected based on the computing power load of devices. The election basis includes CPU utilization, remaining storage space, and network throughput. The dynamically elected edge nodes allocate tasks according to the load, reducing the computing pressure on the gateway, improving the real-time data processing speed, and reducing network latency. Edge nodes are dynamically elected based on the load (CPU, storage, throughput metrics). Devices can self-organize and cooperate in a network, adapt to production scenarios of different scales, support seamless expansion, and achieve intelligent network management.

[0088] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention 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.

[0089] The present invention is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0090] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implement the functions specified in Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0091] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0092] While the preferred embodiments of the present invention have been described, additional changes and modifications can be made by those skilled in the art once they learn the basic inventive concept. Therefore, the appended claims are intended to be construed to cover the preferred embodiments as well as all changes and modifications that fall within the scope of the present invention.

[0093] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A multi-mode communication method based on 2.4GHz and SUB-1GHz networks, applied to sewing equipment networks, characterized in that: The following steps are involved: S1. Build a communication architecture that integrates the SUB-1GHz network and the 2.4GHz MESH network, including: The SUB-1GHz network is used for long-distance, low-rate data transmission, including device authentication, routing relationship synchronization, and network parameter configuration; 2.4GHz MESH network is used for short-distance, high-speed data transmission, including firmware upgrades, large file transfers, and collaborative computing between devices; S2. The sewing device authenticates with the gateway through the SUB-1GHz network. After the authentication is passed, the gateway distributes the 2.4GHz network key to enable the device to access the 2.4GHz MESH network; S3. Routing tables are dynamically maintained between devices based on the SUB-1GHz network, and data is relayed and transmitted through the 2.4GHz MESH network. Edge devices cache and calculate data locally to share the storage and computing load of the gateway. S4. When a new device joins the network, it is authenticated through the SUB-1GHz network of the neighboring device, and the neighboring device forwards the data to the gateway through the 2.4GHz MESH network; S5. When a device fails, the parameters of the same model are copied to the failed device through adjacent devices to achieve rapid recovery.

2. A multi-mode communication method based on 2.4 GHz and SUB-1 GHz networks as claimed in claim 1, characterized in that: The collaboration between the SUB-1GHz network and the 2.4GHz MESH network includes: The SUB-1GHz network is responsible for transmitting network topology information and control instructions, and the 2.4GHz MESH network is responsible for transmitting real-time production data and process files; The gateway broadcasts the routing update command through the SUB-1GHz network, and the device adjusts the data forwarding path of the 2.4GHz MESH network according to the command.

3. A multi-mode communication method based on 2.4 GHz and SUB-1 GHz networks as claimed in claim 1, characterized in that: The inter-device collaborative computing specifically includes: The edge device pre-processes the received process files, generates compressed or fragmented data, and then transmits it to the target device through the 2.4GHz MESH network; Computing power is shared between devices, and neighboring devices assist in completing complex computing tasks. The calculation results are aggregated to the gateway through the SUB-1GHz network.

4. A multi-mode communication method based on 2.4 GHz and SUB-1 GHz networks as claimed in claim 1, characterized in that: The new device authentication process includes: The new device sends a network access request to the neighboring device via the SUB-1GHz network; The neighboring device forwards the request to the gateway, which verifies the device identity, generates a dynamic key, and returns it to the new device via the SUB-1GHz network; The new device uses the dynamic key to join the 2.4GHz MESH network and update the local routing table.

5. A multi-mode communication method based on 2.4 GHz and SUB-1 GHz networks as described in claim 1 or 2 or 3 or 4, characterized in that: The parameter copying and recovery process includes: The faulty device sends a recovery request to the neighboring devices via the SUB-1GHz network; The neighboring device transmits the backup parameters to the faulty device via the 2.4GHz MESH network and confirms the transmission integrity on the SUB-1GHz network; After the faulty device restarts, it reconnects to the network based on the recovery parameters.

6. A multi-mode communication method based on 2.4 GHz and SUB-1 GHz networks as claimed in claim 5, characterized in that: The SUB-1 GHz network adopts the 433 MHz protocol, and both the SUB-1 GHz network and the 2.4 GHz MESH network realize dynamic allocation of spectrum resources through a gateway.

7. A multi-mode communication system based on 2.4GHz and SUB-1GHz networks, characterized in that: include: Multiple sewing devices, each device integrates SUB-1GHz communication module and 2.4GHz MESH communication module; At least one gateway for managing SUB-1GHz network authentication, key distribution and routing table synchronization; The edge computing node is a designated sewing device that is responsible for data caching, preprocessing, and computing power sharing; The system is configured to execute the multi-mode communication method based on 2.4 GHz and SUB-1 GHz networks as described in any one of claims 1 to 6.

8. A multi-mode communication system based on 2.4 GHz and SUB-1 GHz networks as claimed in claim 7, characterized in that: The edge computing nodes are dynamically elected based on the computing power load of the device, and the election basis includes CPU utilization, remaining storage space and network throughput.

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