Heterogeneous networking architecture and method based on Hongyu electric system distributed soft bus

Abstract

The invention discloses a heterogeneous networking architecture and method based on an electric red-hong system distributed soft bus, the heterogeneous networking architecture comprises an equipment grading module, a hybrid topology networking module, a main / standby path configuration module and a communication protocol adaptation module, the equipment grading module divides equipment into a rich type and a thin type according to capability, the rich equipment takes the core role of relay and calculation, and the thin equipment takes the core role of relay and calculation; the thin device focuses on the basic function, accurate resource allocation is achieved, and computing power waste is avoided; the hybrid topology networking module enables rich equipment to construct a mesh topology through a high-speed link, and multi-path transmission of key data is guaranteed; the thin device is connected with the rich device in a single-hop mode to form a star topology, connection is simplified, the communication range is expanded by means of the rich device, and efficiency and coverage are both considered; the main and standby path configuration module is used for configuring double paths for equipment, and automatic switching is realized when a main path fails, so that the anti-fault capability is greatly improved, and equipment disconnection caused by a single link fault is completely eradicated; the communication protocol adaptation module dynamically selects a protocol according to needs, breaks the protocol barrier, reduces the conversion delay, and improves the overall communication efficiency and compatibility.

Description

Technical Field

[0001] The present invention relates to the field of electric power Internet of Things communication technology, and in particular to a heterogeneous networking architecture and method based on a distributed soft bus of a Dianhong system. Background Art

[0002] With the popularization of new energy vehicles, smart charging stations, as an important energy supply scenario, need to connect multiple heterogeneous devices such as charging piles, cameras, environmental sensors, ground lock controllers, etc. to achieve device collaboration and data interaction.

[0003] Traditional charging station networking is primarily based on a star topology, with a small number of repeaters connected point-to-point. Terminal devices communicate only with designated repeaters, and backup paths rely on pre-set protocols (such as BLE and Wi-Fi relays) but lack dynamic routing capabilities. Furthermore, due to the heterogeneity of communication media, protocols, and device capabilities, traditional architectures present the following core issues:

[0004] (1) Heterogeneous media and protocols: Different devices use multiple communication methods such as PLC, Wi-Fi, ZigBee, and BLE. The protocol stacks are incompatible with each other, and edge gateways are required to perform protocol conversion, which increases latency and resource consumption.

[0005] (2) Discovery and networking: Device discovery requires manual configuration, multi-hop routing capabilities are weak, and topology adjustment flexibility is poor;

[0006] (3) Concurrency and reliability: Bandwidth competition leads to concurrency conflicts, lack of a unified fault-tolerance mechanism, and weak fault recovery capabilities;

[0007] (4) Resources and compatibility: Resources cannot be globally scheduled, interoperability between devices from different manufacturers is difficult, and upgrades and maintenance are complex. Summary of the Invention

[0008] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a heterogeneous networking architecture and method based on the distributed soft bus of the telecom system.

[0009] The technical solution adopted by the present invention to solve the technical problem is: a heterogeneous networking architecture based on the distributed soft bus of the Dianhong system, including:

[0010] Device classification module, used to classify charging station devices into rich devices and thin devices;

[0011] Hybrid topology networking module, used to form a mesh topology between rich devices through high-speed communication links, and a star topology with thin devices connected to rich devices in a single hop;

[0012] The primary and backup path configuration module is used to configure the primary and backup paths for rich devices and thin devices, and automatically switch to the backup path when the primary path fails;

[0013] The communication protocol adaptation module is used to dynamically select the protocol based on device capabilities and scenarios.

[0014] As a further improvement of the present invention, it also includes: a device online maintenance module, which is used to maintain the device online through heartbeat detection, path switching and sleep wake-up mechanism.

[0015] As a further improvement of the present invention: the rich device includes a DC fast charging pile, a V2G charging and discharging pile and an edge server, and the thin device includes an AC charging pile, a camera, an environmental sensor and a ground lock controller.

[0016] As a further improvement of the present invention: the mesh topology between the rich devices uses optical fiber or Wi-Fi 6 to implement multi-hop routing, which is used for real-time sharing of grid status, load information and fault alarms, as well as automatic migration of tasks to other rich device nodes in the event of a fault.

[0017] As a further improvement of the present invention: in the rich equipment, the DC fast charging pile is equipped with multiple communication modules and can be used as a regional repeater; the V2G charging and discharging pile supports bidirectional power conversion and high-speed data processing, and can be used as an edge computing node and a power grid interaction hub; the edge server is responsible for global scheduling and cloud communication, and has high computing power and storage capabilities.

[0018] As a further improvement of the present invention: in the thin device, the AC charging pile is connected to the DC fast charging pile through a PLC (Programmable Logic Controller) power line or Wi-Fi, the camera is connected to the DC fast charging pile through Wi-Fi 5G, the environmental sensor is connected to the V2G charging and discharging pile through ZigBee (a low-power local area network protocol based on the IEEE802.15.4 standard), and the ground lock controller is connected to the V2G charging and discharging pile through BLE Mesh (Bluetooth low-power mesh network).

[0019] As a further improvement of the present invention: in the primary-backup path configuration module, the primary path of the rich device is "rich device → optical fiber trunk → edge server", and the backup path is "rich device → BLE Mesh → other rich devices → edge server"; the primary path of the thin device is "thin device → communication module → parent rich device", and the backup path is "thin device → backup communication module → adjacent rich device".

[0020] As a further improvement of the present invention: in the rich device, the backup path of the DC fast charging pile is "DC fast charging pile → BLE Mesh → V2G charging and discharging pile → edge server"; the backup path of the V2G charging and discharging pile is "V2G charging and discharging pile → BLE Mesh → DC fast charging pile → edge server".

[0021] As a further improvement of the present invention: in the thin device, the backup path of the AC charging pile is "AC charging pile → BLE Mesh → V2G charging and discharging pile"; the backup path of the ground lock controller is "ground lock controller → WiFi relay → DC fast charging pile".

[0022] As a further improvement of the present invention: the protocol dynamic selection rule of the communication protocol adaptation module includes:

[0023] Devices with high bandwidth requirements use Wi-Fi 5G / 6G; low-power devices use ZigBee or BLE; power line devices prefer to use PLC.

[0024] As a further improvement of the present invention: in the device online maintenance module, the thin device sends a heartbeat packet to the parent rich device every 5 seconds; when the parent rich device fails to receive the heartbeat packet for three consecutive times, an alarm is triggered and an attempt is made to switch to a backup path; non-critical thin devices enter deep sleep during off-peak periods and wake up every 10 minutes to synchronize data.

[0025] The present invention also provides a heterogeneous networking method based on a distributed soft bus of a Dianhong system, comprising:

[0026] Device classification, which divides charging station devices into rich devices and thin devices;

[0027] Hybrid topology networking: Rich devices form a mesh topology through high-speed communication links, and thin devices connect to rich devices in a single hop to form a star topology;

[0028] Primary and backup path configuration: configure primary and backup paths for rich devices and thin devices, and automatically switch to the backup path when the primary path fails;

[0029] Communication protocol adaptation, dynamically selecting the protocol based on device capabilities and scenarios.

[0030] As a further improvement of the present invention, it also includes: maintaining the device online through heartbeat detection, path switching and sleep wake-up mechanism.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The present invention relies on the distributed soft bus of the Dianhong system. The device classification module divides devices into rich and thin categories according to their capabilities. Rich devices assume the core roles of relay and computing, while thin devices focus on basic functions to achieve accurate resource allocation and avoid waste of computing power; the hybrid topology networking module allows rich devices to build a mesh topology with high-speed links to ensure multi-path transmission of critical data; thin devices connect to rich devices in a star topology with a single hop, simplifying the connection while expanding the communication range with the help of rich devices, taking into account both efficiency and coverage; the primary and backup path configuration module equips the device with dual paths, and automatically switches when the primary path fails, greatly improving the fault resistance and preventing the device from losing connection due to a single link failure; the communication protocol adaptation module dynamically selects protocols on demand, breaking down protocol barriers, reducing conversion delays, and improving overall communication efficiency and compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural block diagram of the present invention.

[0034] Figure 2 It is a flowchart of the present invention.

[0035] Figure 3 This is an architectural diagram of the hybrid topology networking of the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] Dianhong is an IoT operating system that adapts to the characteristics of the power industry. It is based on open source Hongmeng and open source Euler, and selects the technical capability set that is most suitable for power scenarios. On this basis, it adds a "characteristic application layer" for the power system. Through the Internet of Things communication protocol, a system is implemented to cover different types and brands of power equipment, connecting massive power equipment terminals from different manufacturers for information exchange and communication, realizing rapid adaptation of IoT devices, and integrating data from different devices.

[0038] See also Figure 1 and 3, based on the heterogeneous networking architecture of the distributed soft bus of the Dianhong system, including:

[0039] Device classification module, used to classify charging station devices into rich devices and thin devices;

[0040] Hybrid topology networking module, used to form a mesh topology between rich devices through high-speed communication links, and a star topology with thin devices connected to rich devices in a single hop;

[0041] The primary and backup path configuration module is used to configure the primary and backup paths for rich devices and thin devices, and automatically switch to the backup path when the primary path fails;

[0042] The communication protocol adaptation module is used to dynamically select the protocol based on device capabilities and scenarios.

[0043] By adopting device hierarchical and hybrid topology networking, rich devices build a mesh topology to ensure reliable transmission of critical data, and thin devices use rich devices to form a star topology to achieve efficient communication connections and data transmission, improve device discovery and networking flexibility, and enhance topology adjustment capabilities.

[0044] By configuring primary and backup paths, critical equipment can have multiple communication paths, greatly improving fault resistance and preventing equipment from losing connection due to a single link failure. In conjunction with a unified fault-tolerance mechanism, fault recovery capabilities are enhanced.

[0045] In some implementations, the system further includes: a device online maintenance module configured to maintain the device online through heartbeat detection, path switching, and sleep-wake-up mechanisms.

[0046] The device online maintenance module keeps the device online through heartbeat detection, path switching, and sleep wake-up mechanisms. It collaborates with the primary and backup path configuration modules to form a "monitoring-alarm-switching-recovery" closed loop, ensuring that the device remains online while optimizing resource consumption and ensuring that key services such as charging control and status monitoring are not interrupted.

[0047] In some embodiments, in the device online maintenance module, the thin device sends a heartbeat packet to the parent rich device every 5 seconds; when the parent rich device does not receive the heartbeat packet for 3 consecutive times, it triggers an alarm and attempts to switch to a backup path; non-critical thin devices enter deep sleep during off-peak periods and wake up every 10 minutes to synchronize data.

[0048] The device online maintenance module significantly improves system stability and resource efficiency. Thin devices send heartbeat packets every 5 seconds. If the parent device fails to receive them for three consecutive times, an alarm is triggered and the backup path is switched. This can quickly detect hidden communication failures and avoid business interruptions caused by device "disconnection". Non-critical thin devices enter deep sleep (power consumption <10mW) during off-peak hours and wake up every 10 minutes to synchronize data. This not only reduces ineffective energy consumption but also ensures data continuity. This forms a closed loop of "real-time monitoring-fault response-energy-saving scheduling", balancing high reliability and low power consumption. It is particularly suitable for the long-term stable operation of unmanned charging stations and provides continuous data support for critical businesses.

[0049] In some embodiments, the rich devices include a DC fast charging pile, a V2G charging and discharging pile, and an edge server, and the thin devices include an AC charging pile, a camera, an environmental sensor, and a ground lock controller.

[0050] In some embodiments, the mesh topology between the rich devices uses optical fiber or Wi-Fi6 to implement multi-hop routing for real-time sharing of grid status, load information and fault alarms, as well as automatic task migration to other rich device nodes in the event of a fault.

[0051] A mesh topology is built between rich devices using optical fiber or Wi-Fi 6, and efficient multi-hop routing is achieved with high-speed links. Grid status, load information, and fault alarms can be shared in real time to ensure global information synchronization. When a rich device fails, tasks can be automatically migrated to other rich devices to avoid business interruption. This not only improves the timeliness and accuracy of data transmission, but also enhances the system's fault tolerance through distributed collaboration, significantly improving overall operational efficiency and risk resistance.

[0052] In some embodiments, among the rich devices, the DC fast charging pile is equipped with multiple communication modules and can be used as a regional repeater; the V2G charging and discharging pile supports bidirectional power conversion and high-speed data processing, and can be used as an edge computing node and grid interaction hub; the edge server is responsible for global scheduling and cloud communication, and has high computing power and storage capabilities.

[0053] DC fast-charging stations are equipped with multiple communication modules. Acting as regional repeaters, they can flexibly connect to various thin devices, expanding communication coverage and addressing coverage blind spots associated with single communication methods. V2G charging and discharging stations combine bidirectional power conversion with high-speed data processing capabilities. Acting as edge computing nodes and grid interaction hubs, they can respond to grid dispatch demands in real time and promote source-grid-load coordination. Edge servers, with their high computing and storage capabilities, handle global scheduling and cloud communication, enabling coordinated resource allocation and avoiding wasted computing power. These three elements work together to form a multi-tiered support system, enhancing system stability and efficiency.

[0054] In some embodiments, in the thin device, the AC charging pile is connected to the DC fast charging pile via a PLC power line or Wi-Fi, the camera is connected to the DC fast charging pile via Wi-Fi 5G, the environmental sensor is connected to the V2G charging and discharging pile via ZigBee, and the ground lock controller is connected to the V2G charging and discharging pile via BLE Mesh.

[0055] AC charging piles connect to DC fast-charging piles via PLC power lines or Wi-Fi, leveraging the stability of power lines or the flexibility of wireless to ensure reliable transmission of charging data. Cameras leverage the high-speed characteristics of Wi-Fi 5G to quickly transmit high-definition video streams to DC fast-charging piles, meeting real-time monitoring needs. Environmental sensors leverage the low power consumption of ZigBee to establish a persistent connection with V2G charging and discharging piles, suitable for scenarios with continuous small data volumes. Ground lock controllers connect to V2G charging and discharging piles via BLE Mesh, balancing close-range control and multi-device collaboration. Diverse connection methods and protocol combinations not only match the functional requirements of each device, but also achieve cross-type interoperability through rich device cascading, reducing protocol conversion losses, enhancing the overall system adaptability and operational efficiency, and significantly improving communication efficiency and compatibility.

[0056] In some embodiments, in the primary-backup path configuration module, the primary path of the rich device is "rich device → optical fiber trunk → edge server", and the backup path is "rich device → BLE Mesh → other rich devices → edge server"; the primary path of the thin device is "thin device → communication module → parent rich device (i.e., rich device as parent node)", and the backup path is "thin device → backup communication module → adjacent rich device".

[0057] The primary and backup path configuration module significantly improves the system's fault resistance through hierarchical redundancy design. Rich devices use the "rich device → fiber backbone → edge server" as the main path to ensure high-speed transmission of critical data. The backup path "rich device → BLEMesh → other rich devices → edge server" forms distributed redundancy, quickly switching in the event of a fiber failure to avoid disconnection between the core node and the edge server. The main path of thin devices "thin device → communication module → parent rich device" ensures basic connection efficiency, and the backup path "thin device → backup communication module → adjacent rich device" uses multi-module redundancy (such as PLC and BLE switching) to solve the problem of single link failure. This hierarchical design not only leverages the performance advantages of the primary path, but also builds a full-network fault-tolerant network through the backup path, achieving the dual protection of "high reliability of core links + high flexibility of terminal connections", significantly reducing the risk of business interruption due to communication failures, and adapting to the high stability requirements of charging stations.

[0058] In some embodiments, in the rich device, the backup path of the DC fast charging pile is "DC fast charging pile → BLE Mesh → V2G charging and discharging pile → edge server"; the backup path of the V2G charging and discharging pile is "V2G charging and discharging pile → BLE Mesh → DC fast charging pile → edge server".

[0059] Rich backup paths between devices significantly improve core node communication reliability. DC fast-charging stations and V2G charging and discharging stations serve as primary and backup paths for each other via BLE Mesh. When the DC fast-charging station's primary fiber path fails, it can be relayed to the edge server via the V2G charging and discharging station. Conversely, the V2G charging and discharging station can also use the DC fast-charging station for communication backup. This two-way mutual backup mechanism leverages BLE Mesh's close-range networking advantages to quickly activate the backup path in the event of a path failure, ensuring uninterrupted critical data such as grid status and load information.

[0060] In some embodiments, in the thin device, the backup path of the AC charging pile is "AC charging pile → BLEMesh → V2G charging and discharging pile"; the backup path of the ground lock controller is "ground lock controller → WiFi relay → DC fast charging pile".

[0061] The backup path of thin devices can improve the stability of terminal communication. The main path of the AC charging pile relies on PLC or Wi-Fi, and the backup path connects to the V2G charging and discharging pile via BLE. Leveraging BLE's low power consumption and short-range reliability, it can quickly switch in the event of power line or wireless failures to ensure continuous transmission of charging data. The main path of the ground lock controller uses BLE Mesh, and the backup path connects to the DC fast charging pile via WiFi relay. The coverage flexibility of WiFi compensates for the communication limitations of BLE Mesh and ensures that ground lock control commands are not lost. It not only matches the functional characteristics of the device (such as the power environment of the AC charging pile is adapted to BLE), but also achieves redundancy through cross-device cascading. Without increasing hardware costs, it greatly reduces the risk of "disconnection" of terminal devices and provides reliable communication support for charging stations.

[0062] In some implementations, the dynamic protocol selection rules of the communication protocol adaptation module include:

[0063] Devices with high bandwidth requirements use Wi-Fi 5G / 6G; low-power devices use ZigBee or BLE; power line devices prefer to use PLC.

[0064] The dynamic selection rules of the communication protocol adapter module significantly improve the system's communication efficiency and resource adaptability. For devices with high bandwidth requirements (such as high-definition cameras and data-intensive devices), Wi-Fi 5G / 6G is preferred to ensure high-speed transmission of large-capacity data and meet the needs of scenarios such as real-time monitoring and batch information exchange. For low-power devices (such as environmental sensors and ground lock controllers), ZigBee or BLE is adapted to minimize energy consumption while maintaining basic communication and extend device life. Power line devices (such as AC charging piles) are given priority to use PLC, which uses existing power lines to achieve data transmission, reduce additional wiring costs, and has stronger anti-interference capabilities. By adopting an on-demand protocol allocation strategy, it not only avoids resource waste, but also solves the communication bottleneck of different devices, achieves the optimal match between various devices and the network environment, and improves the overall collaborative efficiency of heterogeneous charging station networking. It supports intelligent adaptation of communication protocols and global resource scheduling, optimizes bandwidth utilization, resolves concurrency conflicts, and realizes interoperability of cross-manufacturer devices.

[0065] See also Figure 2 , a heterogeneous networking method based on the distributed soft bus of the Dianhong system, including:

[0066] Device classification, which divides charging station devices into rich devices and thin devices;

[0067] Hybrid topology networking: Rich devices form a mesh topology through high-speed communication links, and thin devices connect to rich devices in a single hop to form a star topology;

[0068] Primary and backup path configuration: configure primary and backup paths for rich devices and thin devices, and automatically switch to the backup path when the primary path fails;

[0069] Communication protocol adaptation, dynamically selecting the protocol based on device capabilities and scenarios.

[0070] In some implementations, the method further includes maintaining the device online by using heartbeat detection, path switching, and sleep-wake-up mechanisms.

[0071] Device grading enables precise resource allocation by distinguishing between rich and thin devices. Rich devices undertake core computing and relay functions, while thin devices focus on basic tasks to avoid wasted computing power. In a hybrid topology network, rich devices use high-speed links to build a mesh topology to ensure multi-path transmission of critical data and dynamic migration of tasks. Thin devices connect to rich devices in a star topology with a single hop, simplifying connections and expanding coverage, while balancing efficiency and range. The primary and backup path configuration equips devices with dual paths, automatically switching when the primary path fails, significantly improving fault resistance. Communication protocol adaptation selects protocols on demand to match device characteristics, breaking down protocol barriers, reducing conversion losses, and overall improving communication efficiency and system compatibility, laying a solid foundation for the stable operation of charging stations. The device online maintenance mechanism further enhances system reliability. Through heartbeat detection and path switching mechanisms, real-time monitoring avoids hidden disconnections, ensuring that devices remain online and critical services are not interrupted.

[0072] Implementation Case 1:

[0073] Heterogeneous networking architecture based on the distributed soft bus of the Dianhong system, including:

[0074] Device classification module, used to classify charging station devices into rich devices and thin devices;

[0075] Hybrid topology networking module, used to form a mesh topology between rich devices through high-speed communication links, and a star topology with thin devices connected to rich devices in a single hop;

[0076] The primary and backup path configuration module is used to configure the primary and backup paths for rich devices and thin devices, and automatically switch to the backup path when the primary path fails;

[0077] Communication protocol adaptation module, used to dynamically select protocols based on device capabilities and scenarios;

[0078] The device online maintenance module is used to maintain the device online through heartbeat detection, path switching, and sleep wake-up mechanisms.

[0079] The rich devices include DC fast charging piles, V2G charging and discharging piles and edge servers, and the thin devices include AC charging piles, cameras, environmental sensors and ground lock controllers.

[0080] The mesh topology between the rich devices uses optical fiber or Wi-Fi 6 to implement multi-hop routing, which is used for real-time sharing of grid status, load information and fault alarms, as well as automatic task migration to other rich device nodes in the event of a fault.

[0081] Among the rich devices, the DC fast charging pile is equipped with multiple communication modules and can be used as a regional repeater; the V2G charging and discharging pile supports bidirectional power conversion and high-speed data processing, and can be used as an edge computing node and grid interaction hub; the edge server is responsible for global scheduling and cloud communication, and has high computing power and storage capabilities.

[0082] In the thin device, the AC charging pile is connected to the DC fast charging pile through PLC power line or Wi-Fi, the camera is connected to the DC fast charging pile through Wi-Fi 5G, the environmental sensor is connected to the V2G charging and discharging pile through ZigBee, and the ground lock controller is connected to the V2G charging and discharging pile through BLEMesh.

[0083] In the primary-backup path configuration module, the primary path of the rich device is "rich device → optical fiber trunk → edge server", and the backup path is "rich device → BLE Mesh → other rich devices → edge server"; the primary path of the thin device is "thin device → communication module → parent rich device (i.e., rich device as parent node)", and the backup path is "thin device → backup communication module → adjacent rich device".

[0084] Among the rich devices, the backup path of the DC fast charging pile is "DC fast charging pile → BLE Mesh → V2G charging and discharging pile → edge server"; the backup path of the V2G charging and discharging pile is "V2G charging and discharging pile → BLE Mesh → DC fast charging pile → edge server".

[0085] In the thin device, the backup path of the AC charging pile is "AC charging pile → BLE Mesh → V2G charging and discharging pile"; the backup path of the ground lock controller is "ground lock controller → WiFi relay → DC fast charging pile".

[0086] The protocol dynamic selection rules of the communication protocol adaptation module include:

[0087] Devices with high bandwidth requirements use Wi-Fi 5G / 6G; low-power devices use ZigBee or BLE; power line devices prefer to use PLC.

[0088] In the device online maintenance module, the thin device sends a heartbeat packet to the parent rich device every 5 seconds; when the parent rich device does not receive the heartbeat packet for three consecutive times, it triggers an alarm and attempts to switch to the backup path; non-critical thin devices enter deep sleep during off-peak periods and wake up every 10 minutes to synchronize data.

[0089] In the present invention, the soft bus constructs a unified logical communication layer by abstracting the underlying communication protocols (such as PLC, Wi-Fi, ZigBee, etc.) to realize the "hybrid discovery + multi-hop routing" mechanism. Hybrid discovery networking supports automatic discovery of devices on multiple communication media (such as power lines and wireless) at the same time, breaking down protocol barriers. Rich devices (such as DC fast charging piles and V2G charging and discharging piles) form a mesh topology, and thin devices (such as AC charging piles, environmental sensors, cameras, and ground lock controllers) form a star topology through rich devices to achieve cross-device cascade communication.

[0090] Implementation Case 2:

[0091] The heterogeneous networking method based on the distributed soft bus of the Dianhong system includes:

[0092] Device classification, which divides charging station devices into rich devices and thin devices;

[0093] Hybrid topology networking: Rich devices form a mesh topology through high-speed communication links, and thin devices connect to rich devices in a single hop to form a star topology;

[0094] Primary and backup path configuration: configure primary and backup paths for rich devices and thin devices, and automatically switch to the backup path when the primary path fails;

[0095] Communication protocol adaptation, dynamically selecting the protocol based on device capabilities and scenarios;

[0096] The device is kept online through heartbeat detection, path switching, and sleep wake-up mechanisms.

[0097] The rich devices include DC fast charging piles, V2G charging and discharging piles and edge servers, and the thin devices include AC charging piles, cameras, environmental sensors and ground lock controllers.

[0098] The mesh topology between the rich devices uses optical fiber or Wi-Fi 6 to implement multi-hop routing, which is used for real-time sharing of grid status, load information and fault alarms, as well as automatic task migration to other rich device nodes in the event of a fault.

[0099] Among the rich devices, the DC fast charging pile is equipped with multiple communication modules and can be used as a regional repeater; the V2G charging and discharging pile supports bidirectional power conversion and high-speed data processing, and can be used as an edge computing node and grid interaction hub; the edge server is responsible for global scheduling and cloud communication, and has high computing power and storage capabilities.

[0100] In the thin device, the AC charging pile is connected to the DC fast charging pile through PLC power line or Wi-Fi, the camera is connected to the DC fast charging pile through Wi-Fi 5G, the environmental sensor is connected to the V2G charging and discharging pile through ZigBee, and the ground lock controller is connected to the V2G charging and discharging pile through BLEMesh.

[0101] The main path of the rich device is "rich device → optical fiber trunk → edge server", and the backup path is "rich device → BLE Mesh → other rich devices → edge server"; the main path of the thin device is "thin device → communication module → parent rich device (i.e. rich device as parent node)", and the backup path is "thin device → backup communication module → adjacent rich device".

[0102] Among the rich devices, the backup path of the DC fast charging pile is "DC fast charging pile → BLE Mesh → V2G charging and discharging pile → edge server"; the backup path of the V2G charging and discharging pile is "V2G charging and discharging pile → BLE Mesh → DC fast charging pile → edge server".

[0103] In the thin device, the backup path of the AC charging pile is "AC charging pile → BLE Mesh → V2G charging and discharging pile"; the backup path of the ground lock controller is "ground lock controller → WiFi relay → DC fast charging pile".

[0104] The dynamic selection rules of the communication protocol adaptation include:

[0105] Devices with high bandwidth requirements use Wi-Fi 5G / 6G; low-power devices use ZigBee or BLE; power line devices prefer to use PLC.

[0106] When the device is maintained online, the thin device sends a heartbeat packet to the parent rich device every 5 seconds; when the parent rich device does not receive the heartbeat packet for 3 consecutive times, it triggers an alarm and attempts to switch to the backup path; non-critical thin devices enter deep sleep during off-peak periods and wake up every 10 minutes to synchronize data.

[0107] The main functions of the present invention are:

[0108] The present invention has strong fault resistance. Through the primary and backup path configuration module, it avoids the "loss of connection" of equipment caused by the failure of a single communication link. It is particularly suitable for scenarios with high reliability requirements such as unmanned charging stations; it has high networking flexibility, combining the advantages of different communication technologies such as PLC (stability) and BLE Mesh (networking flexibility), and can adapt to communication needs in complex electromagnetic environments; it has good business continuity, and through the design of equipment online maintenance mechanism and automatic task migration in case of failure, it ensures that key businesses such as charging control, status monitoring, and data reporting are not interrupted, ensuring the safe and stable operation of the charging station.

[0109] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. Furthermore, each functional unit may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0110] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0111] The units described as separate components may or may not be physically separate, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0112] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.

[0113] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. Heterogeneous networking architecture based on the distributed soft bus of the Dianhong system, characterized by: include: Device classification module, used to classify charging station devices into rich devices and thin devices; Hybrid topology networking module, used to form a mesh topology between rich devices through high-speed communication links, and a star topology with thin devices connected to rich devices in a single hop; The primary and backup path configuration module is used to configure the primary and backup paths for rich devices and thin devices, and automatically switch to the backup path when the primary path fails; The communication protocol adaptation module is used to dynamically select the protocol based on device capabilities and scenarios.

2. The heterogeneous networking architecture based on the distributed soft bus of the Dianhong system according to claim 1 is characterized by: Also includes: The device online maintenance module is used to maintain the device online through heartbeat detection, path switching, and sleep wake-up mechanisms.

3. The heterogeneous networking architecture based on the distributed soft bus of the Dianhong system according to claim 1 is characterized by: The rich devices include DC fast charging piles, V2G charging and discharging piles and edge servers, and the thin devices include AC charging piles, cameras, environmental sensors and ground lock controllers; the mesh topology between the rich devices uses optical fiber or Wi-Fi 6 to achieve multi-hop routing, which is used for real-time sharing of grid status, load information and fault alarms, as well as automatic task migration to other rich device nodes in the event of a fault; in the thin device, the AC charging pile is connected to the DC fast charging pile via PLC power line or Wi-Fi, the camera is connected to the DC fast charging pile via Wi-Fi 5G, the environmental sensor is connected to the V2G charging and discharging pile via ZigBee, and the ground lock controller is connected to the V2G charging and discharging pile via BLEMesh.

4. The heterogeneous networking architecture based on the distributed soft bus of the Dianhong system according to claim 3 is characterized by: In the primary-backup path configuration module, the primary path for rich devices is "rich device → fiber backbone → edge server", and the backup path is "rich device → BLE Mesh → other rich devices → edge server"; the primary path for thin devices is "thin device → communication module → parent rich device", and the backup path is "thin device → backup communication module → adjacent rich device".

5. The heterogeneous networking architecture based on the distributed soft bus of the Dianhong system according to claim 4 is characterized by: Among the rich devices, the backup path for the DC fast charging pile is "DC fast charging pile → BLE Mesh → V2G charging and discharging pile → edge server"; the backup path for the V2G charging and discharging pile is "V2G charging and discharging pile → BLE Mesh → DC fast charging pile → edge server".

6. The heterogeneous networking architecture based on the distributed soft bus of the Dianhong system according to claim 5 is characterized by: In the thin device, the backup path of the AC charging pile is "AC charging pile → BLE Mesh → V2G charging and discharging pile"; the backup path of the ground lock controller is "ground lock controller → WiFi relay → DC fast charging pile".

7. The heterogeneous networking architecture based on the distributed soft bus of the Dianhong system according to claim 1 is characterized by: The protocol dynamic selection rules of the communication protocol adaptation module include: Devices with high bandwidth requirements use Wi-Fi 5G / 6G; low-power devices use ZigBee or BLE; power line devices prefer to use PLC.

8. The heterogeneous networking architecture based on the distributed soft bus of the Dianhong system according to claim 2 is characterized by: In the device online maintenance module, the thin device sends a heartbeat packet to the parent rich device every 5 seconds; when the parent rich device does not receive the heartbeat packet for three consecutive times, it triggers an alarm and attempts to switch to the backup path; non-critical thin devices enter deep sleep during off-peak periods and wake up every 10 minutes to synchronize data.

9. A heterogeneous networking method based on the distributed soft bus of the Dianhong system is characterized by: include: Device classification, which divides charging station devices into rich devices and thin devices; Hybrid topology networking: Rich devices form a mesh topology through high-speed communication links, and thin devices connect to rich devices in a single hop to form a star topology; Primary and backup path configuration: configure primary and backup paths for rich devices and thin devices, and automatically switch to the backup path when the primary path fails; Communication protocol adaptation, dynamically selecting the protocol based on device capabilities and scenarios.

10. The heterogeneous networking method based on the distributed soft bus of the Dianhong system according to claim 9 is characterized in that: Also includes: The device is kept online through heartbeat detection, path switching, and sleep wake-up mechanisms.

Images