Multi-modal intelligent adaptive communication system with disaster self-healing capability

Abstract

The application relates to the field of communication technology and discloses a multi-mode intelligent adaptive communication system with disaster recovery self-healing capability, which comprises a plurality of intelligent adaptive communication station devices connected in communication, wherein the intelligent adaptive communication station device comprises an internal core processing unit, a radio frequency and antenna system and a data interaction interface; the internal core processing unit is a three-core microcontroller unit; a first core performs routing forwarding; a second core runs a bottom-layer radio frequency protocol; and a third core serves as a forwarding engine, realizes physical isolation at the control and data levels, and monitors wired ports and adjacent nodes; when a link is interrupted, the microcontroller unit starts wireless disaster recovery to take over data; when a node is disconnected, the microcontroller unit establishes a multi-hop transmission new path based on link metric values; the system collects signals to calculate a roaming list; weak signal terminal connection is cut off through a dynamic threshold algorithm; and the device executes a Diffie-Hellman protocol on a dedicated channel to generate a temporary key and encrypt networking parameters. The application improves system transmission rate and communication continuity.

Description

Technical Field

[0001] This invention relates to the field of communication technology, specifically to a multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities. Background Technology

[0002] Existing communication station equipment typically employs a single-core processor or a processing architecture where the control plane and data plane are not physically isolated. In multi-level cascaded networking or when facing high-concurrency network data interaction, the underlying radio frequency protocol processing and the upper-layer routing and forwarding logic share core processing resources, which can easily lead to computational bottlenecks. This competition for processing resources can result in limited data transmission bandwidth for network end devices, thereby reducing the overall transmission rate in multi-node network topologies.

[0003] Existing multi-mode communication systems lack dynamic disaster recovery switching and link self-healing mechanisms in terms of network topology maintenance. When the system faces sudden failures such as wired link interruption due to physical damage to cables or power failure and disconnection of single-point devices in the network matrix, the devices cannot automatically take over the transmission medium and recalculate multi-hop routing paths. This lack of fault response capability will lead to interruption of service data flow, making it difficult to ensure the continuity of communication networks and the reliability of equipment operation in dynamic networking environments.

[0004] Regarding terminal access and device network configuration, existing communication systems often encounter the problem of terminals getting stuck at weak signal nodes when handling mobile terminal roaming across nodes. Furthermore, the re-authentication process can lead to a long network interruption time. At the same time, when performing initial network configuration or adding new nodes, existing devices often exchange network parameters in plaintext or rely on static preset passwords, lacking a dynamic encrypted transmission mechanism based on temporary session keys. This results in low security of underlying data interaction and is prone to parameter leakage risks during network configuration. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities. It solves the problems of existing communication systems, such as computational bottlenecks leading to limited transmission rates when processing high-concurrency network data, lack of dynamic disaster recovery and link self-healing mechanisms causing interruption of service data flow during sudden failures, and low security of underlying data interaction due to mobile terminal roaming stickiness and plaintext interaction of network parameters.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities, comprising multiple intelligent adaptive communication station devices that establish communication connections. Each intelligent adaptive communication station device includes an internal core processing unit, a radio frequency and antenna system, and a data interaction interface.

[0008] The internal core processing unit is configured as a three-core microcontroller unit, comprising a first core, a second core, and a third core. The first core runs the upper-layer transport control protocol stack and internet protocol stack, and performs routing and forwarding logic as well as security authentication tasks. The second core runs the lower-layer radio frequency medium access control layer protocol stack and physical layer protocol stack. The third core is configured as a packet forwarding engine and a low-power subnet coordinator. The physical cores of the three-core microcontroller unit have independent hardware-level division of labor in data flow processing to achieve physical isolation between the control plane and the data plane.

[0009] The data interface includes a Gigabit Ethernet LAN port and a reset button. The RF and antenna system includes an access point antenna interface operating at 5.8 GHz, a site antenna interface operating at 5.8 GHz, and an antenna interface operating at 2.4 GHz. The access point antenna interface and the site antenna interface connect to directional networking antennas, while the 2.4 GHz antenna interface connects to an omnidirectional coverage antenna.

[0010] The three-core microcontroller unit monitors the physical link status of the Gigabit Ethernet LAN port. When the three-core microcontroller unit detects an interruption in the wired physical link of the Gigabit Ethernet LAN port, it activates the wireless backup link configured in the 5.8GHz band, and the intelligent adaptive communication station takes over data transmission through the wireless backup link. When the physical link of the Gigabit Ethernet LAN port is repaired and the wired communication handshake protocol is re-established, the three-core microcontroller unit disconnects the 5.8GHz band wireless backup link, and the data transmission path of the intelligent adaptive communication station returns to the wired communication state.

[0011] The three-core microcontroller unit monitors the operational status of adjacent adaptive communication station nodes through a heartbeat timeout mechanism or a media access control layer confirmation failure mechanism. When the three-core microcontroller unit detects a disconnection failure in an adjacent adaptive communication station node, it cleans the failed paths in its local routing table and executes a path recalculation procedure. The three-core microcontroller unit extracts signal strength, bit error rate, and channel congestion status as air link metrics, and determines a new multi-hop transmission path based on these metrics. The three-core microcontroller unit writes the new multi-hop transmission path into the forwarding table of the adaptive communication station's underlying hardware, and redirects service data packets residing in the device's memory to the new multi-hop transmission path for transmission.

[0012] The adaptive communication station equipment uses the 802.11k and 802.11v protocols to collect signal strength, congestion rate, and signal-to-noise ratio (SNR) data from surrounding adaptive communication station nodes. A three-core microcontroller unit performs target node topology calculations based on these data and calculates a roaming candidate list for the access terminal. When an access terminal physically moves between different adaptive communication station nodes and connects to a new node, the three-core microcontroller unit recalculates the network topology and updates the MAC address forwarding table and routing path for each node. The first core runs a dynamic threshold algorithm to evaluate the signal attenuation curve and movement trend of the access terminal. When the signal attenuation curve and movement trend of the access terminal reach a preset threshold, the first core generates a deauthentication frame. The first core sends the deauthentication frame to the access terminal, and the adaptive communication station equipment disconnects the network connection between the access terminal and the device. The three-core microcontroller unit executes a secure handshake procedure based on the 802.11r protocol. The three-core microcontroller unit pre-calculates and synchronizes the paired master key and temporary key required for encrypted communication between the intelligent adaptive communication station device nodes. When an access terminal physically moves between different intelligent adaptive communication station device nodes and connects to a new intelligent adaptive communication station device node, the intelligent adaptive communication station device establishes a connection with the access terminal using the synchronized paired master key and temporary key.

[0013] The general-purpose input / output pins of the three-core microcontroller unit detect level changes in the reset button. When the reset button receives a short press, a hardware interrupt is triggered. The low-level driver of the three-core microcontroller unit performs software debouncing and sends a network distribution trigger signal. After receiving the network distribution trigger signal, the intelligent adaptive communication station device starts a countdown for a safe network distribution window. During the countdown window, the device switches its internal state machine to the network distribution monitoring and broadcasting state. The RF and antenna system switches its operating channel to a dedicated public management channel, where the device performs a node discovery mechanism. The device sends beacon frames or probe request frames containing custom vendor-specific information elements on the dedicated public management channel. When the first and second intelligent adaptive communication stations mutually detect each other's broadcast of custom vendor-specific information elements on the dedicated public management channel, they compare the MAC address values ​​or the internally generated random seed number of the two devices. The first or second intelligent adaptive communication station device will configure the node with the larger MAC address value or the number of internally generated random seeds as the master node, and the node with the smaller value as the slave node.

[0014] The first and second intelligent adaptive communication station devices execute an elliptic curve Diffie-Hellman key exchange protocol. Without exchanging private keys, each device independently generates the same temporary session key locally. The first device uses the temporary session key to encrypt the network parameters and sends them to the second device on a dedicated public management channel. The second device decrypts the network parameters using the temporary session key and writes them into non-volatile memory for permanent storage. The second device sends a configuration confirmation frame to the first device and performs a system restart. After the restart, the second device reads the permanently stored network parameters and switches its working channel from the dedicated public management channel to the service channel based on these parameters.

[0015] This invention provides a multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities. It has the following beneficial effects:

[0016] 1. This invention achieves physical isolation between the control and data planes by configuring a three-core microcontroller unit within the internal core processing unit. The first core executes routing and forwarding logic, the second core runs the underlying radio frequency protocol stack, and the third core acts as a packet forwarding engine. This hardware-level division of labor architecture solves the computational bottleneck of single-core processors when processing high-concurrency network data. In multi-level cascaded networking, it ensures data transmission bandwidth for network endpoints and improves the overall transmission rate in multi-node network topologies.

[0017] 2. This invention uses a three-core microcontroller unit to monitor the operational status of gigabit Ethernet LAN ports and adjacent intelligent adaptive communication station nodes in real time. When a wired physical link is interrupted, it can initiate a wireless disaster recovery link to take over data transmission. Furthermore, when a node experiences a disconnection, it recalculates and establishes a new multi-hop transmission path. This mechanism enables the communication system to automatically restore service data transmission when faced with faults such as physical cable damage or single-point device disconnection, ensuring the continuity of the communication network and the reliability of equipment operation in dynamic networking environments.

[0018] 3. This invention utilizes a three-core microcontroller unit to collect status data from surrounding nodes to calculate a roaming candidate list for the access terminal. Combined with a dynamic threshold algorithm, it proactively disconnects the network connection of terminals with weak signals and establishes a new connection with the access terminal using a synchronized key. Furthermore, during the network configuration phase, the device independently generates a temporary session key using a dedicated public management channel and an elliptic curve Diffie-Hellman key exchange protocol. This temporary session key is used to encrypt the issued network parameters. These techniques reduce network interruption time when mobile terminals roam across nodes and prevent plaintext leakage of parameters during device network configuration, thus improving the security of underlying data interaction within the system. Attached Figure Description

[0019] Figure 1 This is a system architecture diagram of the present invention. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1 The present invention provides a multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities.

[0022] This invention provides a multi-mode intelligent adaptive communication system, the physical entity of which includes an intelligent adaptive communication station device. The intelligent adaptive communication station device includes: an external housing, a radio frequency and antenna system, a data interaction interface, and an internal core processing unit.

[0023] The communication station's outer casing features an octagonal columnar structure, with a top width and depth of 42 cm. External antenna assemblies are connected to the side edges of the casing via a support structure. A mounting base is connected to the bottom of the casing via a column. The main body material of the casing is 2 mm thick. The adaptive communication station meets the operating temperature range of -40°C to 75°C and the non-condensing humidity requirements of 5% to 95%. The adaptive communication station uses a DC 12V power supply with a current of 2A, and the average power consumption of the entire unit is controlled below 12W.

[0024] The radio frequency (RF) and antenna system adopts a tri-band RF architecture. The top panel of the communication station is equipped with an access point antenna interface operating at 5.8 GHz and a site antenna interface operating at 5.8 GHz. The 5.8 GHz access point antenna interface and the site antenna interface are respectively connected to external 8 dBi directional networking antennas. The directional networking antennas are used to establish relay communication links for the high-speed backbone network.

[0025] The bottom panel of the communication station is equipped with an antenna interface operating at a frequency of 2.4 GHz. This 2.4 GHz antenna interface connects to an external 5 dBi omnidirectional coverage antenna. The omnidirectional coverage antenna is used to provide wireless LAN hotspot coverage for end-user terminals.

[0026] The data interaction interfaces are centrally located on the bottom panel of the communication station. The bottom panel is equipped with three independent Gigabit Ethernet LAN ports. These ports are used to connect wired devices such as computers, broadcast terminals, or positioning terminals. The bottom panel also features a power input interface and a power output interface. Additionally, the bottom panel includes a dedicated power switch button and a reset button. The reset button triggers a physical interrupt of the device to initiate the pairing and networking process.

[0027] The communication station's internal circuit board integrates a three-core microcontroller unit. The three physical cores of the three-core microcontroller unit have independent hardware-level division of labor in data flow processing, so as to achieve physical isolation between the control layer and the data layer.

[0028] The first core is configured as a routing and application control unit. It is dedicated to running the upper-layer TCP / IP protocol stack. The first core executes routing and forwarding logic, maintains connections to the external cloud, and handles device security authentication tasks.

[0029] The second core is configured as an uplink communication unit. The second core independently runs the underlying RF MAC / PHY protocol stack. The second core is used to maintain the uplink keep-alive connection with the upstream network device.

[0030] The third core is configured as a downlink coverage and network acceleration unit. As a hardware-level packet forwarding engine, it handles the forwarding of underlying network requests. The third core is also configured as a low-power subnet coordinator, processing data access from scattered nodes such as Bluetooth or Zigbee.

[0031] Based on the above embodiments, the network topology of the multi-mode intelligent adaptive communication system may include: a purely wired connection mode, a purely wireless connection mode, and a wired-wireless hybrid connection mode.

[0032] When operating in wired-only mode, the adaptive communication station establishes physical links with adjacent adaptive communication station devices or the main router via three Gigabit Ethernet LAN ports on its bottom panel. In wired-only mode, data transmission between adaptive communication station devices relies on a wired medium.

[0033] When operating in pure wireless mode, the adaptive communication station uses a directional networking antenna connected to an antenna interface operating at 5.8 GHz to establish wireless backhaul links with surrounding adaptive communication stations. A single adaptive communication station supports three physical channels operating simultaneously and can establish connections with neighboring stations. Multiple stations can form a multi-level swarm matrix coverage network through multi-level hops, achieving wireless cascading levels of 10 or higher.

[0034] During wireless cascading, the distance between adjacent adaptive communication station devices ranges from 500 meters to 2000 meters. The point-to-point underlying wireless transmission channel rate between two adaptive communication station devices reaches 600 Mbps. After multiple hops, the adaptive communication station device at the network end can still guarantee a usable bandwidth of no less than 400 Mbps.

[0035] When the adaptive communication station operates in a wired-wireless hybrid connection mode, the multi-mode adaptive communication system monitors the physical link status of the three Gigabit Ethernet LAN ports on the bottom panel of the adaptive communication station in real time. If the wired connection of the Gigabit Ethernet LAN port is unexpectedly interrupted, the microcontroller unit of the adaptive communication station intelligently initiates the 5.8GHz wireless disaster recovery link to take over data transmission; once the wired fault is repaired and the handshake protocol is re-established, the adaptive communication station disconnects the wireless disaster recovery link and returns to the initial wired state.

[0036] While maintaining the backbone network topology, the intelligent adaptive communication station equipment transmits wireless LAN signals downwards through an antenna interface operating at a frequency of 2.4 GHz. A single intelligent adaptive communication station equipment can provide simultaneous access for up to 30 users. The multi-mode intelligent adaptive communication system supports single-stream technology and multiple-input multiple-output technology. The arbitrary topology formed by multiple intelligent adaptive communication stations can adapt to dynamic terrains such as open-pit mines, solving the problem of blind spots and dead zones.

[0037] Furthermore, the macro-level workflow of a multi-modal adaptive communication system includes:

[0038] After the adaptive communication station is connected to a 12V DC power supply and completes the startup procedure, the blue power indicator light on the device's panel will illuminate. The internal radio frequency and antenna system of the adaptive communication station will then activate and scan for surrounding wireless radio frequency bands.

[0039] The intelligent adaptive communication station receives a physical action command from a short press of the reset button. The change in the pin level of the reset button triggers a hardware interrupt in the microcontroller unit. After software debouncing via a timer, the microcontroller unit's low-level driver sends a network trigger signal to the operating system's application layer.

[0040] The adaptive intelligent communication station enters the network monitoring and broadcasting state. Adjacent adaptive intelligent communication stations complete role negotiation, temporary key generation, and authentication procedures on a pre-defined dedicated public management channel. The master node device sends network parameters, including the service set identifier and encryption password, to the slave node devices. Based on the network parameters, adjacent adaptive intelligent communication stations establish a point-to-point underlying wireless transmission channel with a transmission rate of 600Mbps in the 5.8GHz band.

[0041] After establishing a link, the adaptive communication station equipment enters a stable operation and topology expansion phase. Adaptive communication station equipment configured as backbone nodes cascades to the next-level adaptive communication station equipment via the 5.8GHz band. Adaptive communication station equipment configured for end-point coverage transmits wireless LAN signals downwards via the 2.4GHz band, providing wireless access services to application terminals.

[0042] During steady-state operation, the three core microcontroller units of the adaptive communication station equipment perform physically isolated data flow. The first core handles the routing logic of the upper-layer TCP / IP protocol stack; the second core maintains the uplink radio frequency underlying protocol stack; and the third core performs hardware-level data transfer operations for downlink network requests.

[0043] The multi-mode adaptive communication system continuously monitors the network topology during operation. When the mobile terminal moves physically between different adaptive communication station nodes, the microcontroller unit calculates the optimal target node based on the terminal's signal strength and updates the MAC address forwarding table of the underlying data stream to maintain the terminal's network connectivity.

[0044] When the multi-mode adaptive communication system detects an interruption in the wired link of the gigabit Ethernet LAN port, or a power outage or disconnection fault in the adaptive communication station device node in the wireless networking matrix, the microcontroller unit senses the fault and activates the emergency response mechanism of the distributed routing protocol.

[0045] The microcontroller unit cleans up failed paths in its local routing table and executes a path recalculation procedure. It then calculates and establishes new multi-hop transmission routes among the remaining nodes in the network matrix. The adaptive communication station redirects delayed service data packets to the newly established transmission routes for forwarding, thus restoring the transmission of service data streams.

[0046] In the specific implementation of the internal core processing unit, the working logic of the first core includes:

[0047] The first core configuration of the microcontroller unit integrated in the intelligent adaptive communication station equipment is a routing and application main control unit. This first core is dedicated to running the upper-layer TCP / IP protocol stack.

[0048] The first core handles routing and forwarding logic. The first core maintains a persistent connection between the adaptive communication station device and the cloud. The first core executes device management and security authentication tasks for the adaptive communication station device.

[0049] The first core performs proactive intervention calculations for anti-sticky terminals. It continuously runs a dynamic threshold algorithm to evaluate the signal attenuation curve and movement trend of the access terminals.

[0050] When the signal attenuation curve and mobility trend of the access terminal reach a critical value, the first core actively sends a deauthentication frame. The first core then forcibly redirects the access terminal to a smart adaptive communication station device node with better signal.

[0051] Furthermore, the second core working logic includes:

[0052] The microcontroller unit of the intelligent adaptive communication station equipment integrates a second core configuration as the uplink communication core. The second core independently runs the underlying RF MAC / PHY protocol stack.

[0053] The second core connects to the upper-level network, including the main router, through the underlying RF MAC / PHY protocol stack.

[0054] The second core executes the uplink keep-alive connection mechanism. When the first core, configured as the routing and application control unit, is under high load, the second core independently maintains a stable and low-latency uplink keep-alive connection between the intelligent adaptive communication station device and the upper-level network.

[0055] The second core operates independently on the underlying RF MAC / PHY protocol stack, avoiding network connection interruptions caused by high load on the main control core and network lag under high concurrency environments. The second core works in conjunction with the first core to achieve physical isolation between the control plane and data plane within the intelligent adaptive communication station equipment.

[0056] Furthermore, the working logic of the third core includes:

[0057] The third core integrated into the microcontroller unit of the intelligent adaptive communication station is configured as a downlink coverage and network acceleration core. This third core executes corresponding operational logic based on the device's form factor.

[0058] When the third core is configured as a hardware-level packet forwarding engine, i.e. a network processor, the third core performs zero-latency direct transport operations for underlying network requests.

[0059] When the third core is configured as a low-power subnet coordinator, it independently processes scattered node data. Scattered node data includes Bluetooth node data and Zigbee node data.

[0060] The third core works in conjunction with the first and second cores to achieve physical isolation between the control plane and data plane within the intelligent adaptive communication station equipment. This physical isolation architecture resolves network lag and interruption issues under high concurrency environments.

[0061] Based on the above embodiments, the process of target node prediction and topology calculation performed by the multi-mode intelligent adaptive communication system includes:

[0062] When the multi-mode intelligent adaptive communication system is in operation, the node prediction logic is executed through the internal core processing unit of the intelligent adaptive communication station equipment.

[0063] The adaptive communication station equipment uses the 802.11k and 802.11v protocols to collect real-time status data from surrounding adaptive communication station nodes. This status data includes the signal strength, congestion rate, and signal-to-noise ratio of the surrounding nodes.

[0064] The microcontroller unit of the intelligent adaptive communication station device performs target node topology calculations based on the collected signal strength, congestion rate, and signal-to-noise ratio of surrounding nodes.

[0065] The microcontroller unit performs target node topology calculations to pre-calculate an optimal roaming candidate list for connected terminals. This optimal roaming candidate list provides a basis for target node switching when a terminal moves across nodes.

[0066] Furthermore, the process of performing a fast secure handshake and key synchronization in a multi-mode adaptive communication system includes:

[0067] The microcontroller unit of the intelligent adaptive communication station equipment executes a fast and secure handshake procedure based on the 802.11r protocol.

[0068] The microcontroller unit of the adaptive communication station device pre-calculates and synchronizes the pair of master keys and temporary keys required for encrypted communication between the adaptive communication station device nodes in the network backend.

[0069] When access terminals move across nodes, the intelligent adaptive communication station equipment uses synchronized paired master keys and temporary keys to enable direct access for access terminals without authentication.

[0070] Through the direct access mechanism without authentication, the intelligent adaptive communication station equipment reduces the network disconnection verification time when the access terminal moves across nodes to less than 50 milliseconds.

[0071] Furthermore, the process by which the multi-mode intelligent adaptive communication system performs proactive intervention on the anti-stickiness terminal includes:

[0072] The first core of the intelligent adaptive communication station equipment is the continuously running dynamic threshold algorithm.

[0073] The first core uses a dynamic threshold algorithm to evaluate the signal attenuation curve and movement trend of the access terminal.

[0074] When the signal attenuation curve and movement trend of the access terminal reach a preset threshold, the first core generates a deauthentication frame.

[0075] The first core sends a deauthentication frame to the access terminal, severing the network connection between the access terminal and the intelligent adaptive communication station equipment.

[0076] The intelligent adaptive communication station device redirects access terminals with weak signals to adjacent intelligent adaptive communication station device nodes with better signals by sending a deauthentication frame.

[0077] Furthermore, the process of multi-mode adaptive communication systems performing underlying data stream redirection includes:

[0078] The access terminal moves its physical location between different intelligent adaptive communication station device nodes and connects to a new intelligent adaptive communication station device node.

[0079] The microcontroller unit of the intelligent adaptive communication station device recalculates the network topology the moment a new node is connected to the access terminal.

[0080] The microcontroller unit updates the MAC address forwarding table and routing path of each intelligent adaptive communication station device node in the network based on the recalculated network topology.

[0081] The intelligent adaptive communication station equipment receives business data streams sent from the cloud or local area network.

[0082] The intelligent adaptive communication station equipment redirects and forwards service data streams based on the updated MAC address forwarding table and routing path.

[0083] The intelligent adaptive communication station equipment controls the time within 1 millisecond to change the route of the business data stream and accurately deliver it to the access terminal.

[0084] The multi-mode intelligent adaptive communication system achieves seamless relay connection when access terminals move across nodes through target node prediction, security key synchronization, anti-sticking terminal active intervention, and data stream redirection mechanisms.

[0085] Based on the above embodiments, the disaster recovery switchover process performed by the multi-mode intelligent adaptive communication system includes:

[0086] When the intelligent adaptive communication station equipment is running in a wired and wireless hybrid network topology, the microcontroller unit monitors the physical link status of the gigabit Ethernet LAN port in real time.

[0087] When the microcontroller unit detects an unexpected interruption of the wired physical link of the Gigabit Ethernet LAN port, the microcontroller unit can start the wireless disaster recovery link configured in the 5.8GHz band within milliseconds without human intervention.

[0088] The intelligent adaptive communication station equipment takes over data transmission through the activated 5.8GHz band wireless disaster recovery link.

[0089] Once the physical link failure of the Gigabit Ethernet LAN port is repaired and the wired communication handshake protocol is re-established, the microcontroller unit disconnects the wireless disaster recovery link in the 5.8GHz band.

[0090] The data transmission path of the adaptive communication station equipment is restored to the initial wired communication state.

[0091] Furthermore, the process of multi-hop self-healing of distributed wireless links in a multi-mode adaptive communication system includes:

[0092] The microcontroller unit of the intelligent adaptive communication station device monitors the operating status of adjacent intelligent adaptive communication station device nodes through a heartbeat timeout mechanism or a MAC layer ACK confirmation failure mechanism.

[0093] When a smart adaptive communication station node in the wireless network matrix experiences a power outage or damage, resulting in a disconnection, adjacent smart adaptive communication station devices will detect the fault. The detected smart adaptive communication station device will immediately broadcast a routing error notification to the entire system.

[0094] Other intelligent adaptive communication station devices within the system receive routing error notifications and clean up failed paths in their local routing tables.

[0095] The microcontroller unit executes a path recalculation procedure. The microcontroller unit establishes new links by flooding route requests and unicasting route responses when a new path is found; alternatively, the microcontroller unit independently calculates a topology map that bypasses the faulty node by exchanging the latest neighbor node states and running a shortest path algorithm.

[0096] When calculating the transmission path, the microcontroller unit extracts signal strength, bit error rate, and channel congestion as air link metrics. The microcontroller unit then performs a weighted evaluation of the calculated transmission path based on these air link metrics.

[0097] The microcontroller unit determines a new multi-hop transmission path based on the weighted evaluation results. The microcontroller unit then writes the calculated new multi-hop transmission path into the forwarding table of the underlying hardware of the intelligent adaptive communication station device.

[0098] The microcontroller unit redirects service data packets that are stuck in the device memory to a new multi-hop transmission path for recovery. The multi-mode intelligent adaptive communication system completes the routing convergence and service recovery control of the new multi-hop transmission path within 50 milliseconds, realizing intelligent adaptive repair of the network topology.

[0099] Based on the above embodiments, the process of hardware triggering and channel switching performed by the multi-mode intelligent adaptive communication system includes:

[0100] The general-purpose input / output pins of the microcontroller unit in the intelligent adaptive communication station equipment detect the level changes of the reset button. When the reset button receives a short press operation lasting 1 to 3 seconds, the general-purpose input / output pins detect a falling edge or a rising edge and trigger a hardware interrupt.

[0101] The low-level driver of the microcontroller unit performs software debouncing through a timer. After completing the software debouncing process, the low-level driver sends a network trigger signal to the operating system of the microcontroller unit's main control core.

[0102] Upon receiving a distribution network trigger signal, the intelligent adaptive communication station equipment initiates a 120-second countdown safety distribution network window. During this window, the internal state machine of the intelligent adaptive communication station equipment switches from a steady-state operation to a distribution network monitoring and broadcasting state.

[0103] The status indicator lights on the smart adaptive communication station's device panel synchronously switch to a fast-flashing mode, providing interactive feedback that it is in pairing mode.

[0104] Upon network configuration triggering, the radio frequency chip of the intelligent adaptive communication station briefly switches its operating channel to a pre-agreed dedicated public management channel. This dedicated public management channel is configured as channel 165 of the 5.8GHz band.

[0105] The intelligent adaptive communication station equipment implements a node discovery mechanism on a dedicated public management channel to avoid interference with the operating 5.8GHz or 2.4GHz service frequency bands.

[0106] Furthermore, the process by which a multimodal adaptive communication system performs broadcasting of exclusive information elements and dynamic role arbitration includes:

[0107] When paired, the adaptive communication station device transmits beacon frames or probe request frames at a higher frequency on a dedicated public management channel. These beacon frames or probe request frames contain custom, vendor-specific information elements.

[0108] Custom, manufacturer-specific information elements encapsulate the core identity information of the adaptive communication station device. This core identity information includes an organization-unique identifier, device role capabilities, public key hash value, and a random challenge number. The organization-unique identifier is used to prevent cross-network interference. Device role capabilities are used to identify whether the adaptive communication station device is an unconfigured orphan node or a backbone node already connected to the network. The public key hash value is generated based on the factory-preset public key of the adaptive communication station device and is used for subsequent encryption verification. The random challenge number is used to defend against replay attacks.

[0109] When multiple adaptive communication station devices simultaneously activate their pairing buttons and mutually detect each other's custom vendor-specific information elements broadcast on a dedicated public management channel, the adaptive communication station devices execute a master-slave negotiation mechanism to determine the master-slave relationship. The master-slave relationship is determined by one adaptive communication station device issuing a configuration, which is then received by the other adaptive communication station device.

[0110] The adaptive communication station devices perform topology status priority determination and evaluate the network status of each adaptive communication station device. When the first adaptive communication station device is connected to the external network via a wired connection or as the root node of the mesh network, and the second adaptive communication station device is in an unconfigured initial state, the first adaptive communication station device automatically acts as the configurer, and the second adaptive communication station device acts as the requester.

[0111] When both the first and second intelligent adaptive communication station devices are in the same unconfigured initial state, the intelligent adaptive communication station device triggers the anti-collision arbitration algorithm.

[0112] The anti-collision arbitration algorithm compares the MAC address values ​​or internally generated random seed numbers of the first and second intelligent adaptive communication station devices. The intelligent adaptive communication station temporarily configures the node with the larger MAC address value or random seed number as the master node and the node with the smaller value as the slave node. The intelligent adaptive communication station device avoids logical conflicts and deadlocks caused by sending configuration information to each other through the anti-collision arbitration algorithm.

[0113] Furthermore, the process of performing elliptic curve-based temporary key negotiation and two-way authentication includes:

[0114] After the master-slave relationship is established, the first intelligent adaptive communication station device and the second intelligent adaptive communication station device initiate an asymmetric encrypted handshake without using a preset password.

[0115] The first and second adaptive communication station devices respectively use public keys broadcast in custom manufacturer-specific information elements and internally generated secure random numbers to execute the elliptic curve Diffie-Hellman key exchange protocol.

[0116] The first and second intelligent adaptive communication station devices independently generate the same temporary session key locally without exchanging private keys.

[0117] The first and second intelligent adaptive communication station devices use temporary session keys to sign and verify the factory security certificate pre-burned into the hardware encryption chip or one-time programmable storage area.

[0118] The first and second intelligent adaptive communication station devices complete two-way identity authentication by verifying the signature of the factory security certificate.

[0119] Two-way authentication is used to verify that paired devices are legitimate and to prevent counterfeit devices from accessing the network. Independently generated ephemeral session keys prevent keys from being transmitted in plaintext during network configuration.

[0120] Furthermore, the process of encrypting, delivering, and permanently restarting network parameters in a multi-mode intelligent adaptive communication system includes:

[0121] The first intelligent adaptive communication station equipment uses a temporary session key to encrypt the network parameters of the service network. The network parameters include the service set identifier, network mask, channel allocation information, and access password.

[0122] The first intelligent adaptive communication station sends the encrypted networking parameters to the second intelligent adaptive communication station on a dedicated public management channel.

[0123] The second intelligent adaptive communication station device receives the encrypted networking parameters and performs decryption using a locally generated temporary session key.

[0124] The microcontroller unit of the second intelligent adaptive communication station equipment writes the decrypted networking parameters into a non-volatile memory for permanent storage.

[0125] After the second intelligent adaptive communication station device completes the solidification and saving of the networking parameters, it sends a configuration confirmation frame to the first intelligent adaptive communication station device and performs a system restart.

[0126] After the system restarts, the second intelligent adaptive communication station reads the permanently saved network parameters. Based on these parameters, the second intelligent adaptive communication station switches its working channel from the dedicated public management channel to the service channel.

[0127] The second intelligent adaptive communication station equipment verifies the network parameters on the service channel and accesses the service network.

[0128] The multi-mode intelligent adaptive communication system uses temporary session keys to encrypt and deliver network parameters, combined with a hardware-based hardening and restart mechanism, to complete the conversion of unconfigured nodes into backbone nodes of the business network, and avoids the plaintext leakage of business network parameters during the configuration process.

[0129] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities, characterized in that: It includes multiple intelligent adaptive communication station devices that establish communication connections. The intelligent adaptive communication station devices include an internal core processing unit, a radio frequency and antenna system, and a data interaction interface. The internal core processing unit is configured as a three-core microcontroller unit, which includes a first core, a second core, and a third core. The first core runs the upper-layer transmission control protocol stack and the Internet protocol stack. The first core executes routing and forwarding logic and security authentication tasks. The second core operates the underlying radio frequency media access control layer protocol stack and the physical layer protocol stack; The third core configuration consists of a packet forwarding engine and a low-power subnet coordinator.

2. The multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities according to claim 1, characterized in that, The data interaction interface includes a gigabit Ethernet LAN port and a reset button; The radio frequency and antenna system includes an access point antenna interface operating at a frequency of 5.8 GHz, a site antenna interface operating at a frequency of 5.8 GHz, and an antenna interface operating at a frequency of 2.4 GHz. The access point antenna interface and the site antenna interface are connected to the directional networking antenna, and the antenna interface with an operating frequency of 2.4GHz is connected to the omnidirectional coverage antenna.

3. The multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities according to claim 2, characterized in that, The three-core microcontroller unit monitors the physical link status of Gigabit Ethernet LAN ports. When the three-core microcontroller unit detects an interruption in the wired physical link of the Gigabit Ethernet LAN port, the three-core microcontroller unit activates the wireless disaster recovery link configured in the 5.8GHz band, and the intelligent adaptive communication station device takes over the data transmission through the wireless disaster recovery link. Once the physical link failure of the Gigabit Ethernet LAN port is repaired and the wired communication handshake protocol is re-established, the three-core microcontroller unit disconnects the wireless disaster recovery link in the 5.8GHz band, and the data transmission path of the intelligent adaptive communication station equipment is restored to wired communication.

4. The multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities according to claim 1, characterized in that, The three-core microcontroller unit monitors the operating status of adjacent intelligent adaptive communication station device nodes through a heartbeat timeout mechanism or a media access control layer confirmation of continuous failure mechanism. When the three-core microcontroller unit detects that a neighboring intelligent adaptive communication station device node has gone offline, the three-core microcontroller unit cleans the failed paths in the local routing table and executes a path recalculation program. The three-core microcontroller unit extracts signal strength, bit error rate and channel congestion as air link metrics, and determines new multi-hop transmission paths based on the air link metrics. The three-core microcontroller unit writes the new multi-hop transmission path into the forwarding table of the underlying hardware of the intelligent adaptive communication station device. The three-core microcontroller unit then redirects the service data packets that are stuck in the device memory to the new multi-hop transmission path for transmission.

5. The multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities according to claim 1, characterized in that, The adaptive communication station equipment uses the 802.11k and 802.11v protocols to collect signal strength, congestion rate, and signal-to-noise ratio of surrounding adaptive communication station equipment nodes; The three-core microcontroller unit performs target node topology calculations based on the signal strength, congestion rate, and signal-to-noise ratio of the surrounding intelligent adaptive communication station equipment nodes, and calculates a roaming candidate list for the access terminal. When an access terminal moves physically between different intelligent adaptive communication station device nodes and connects to a new intelligent adaptive communication station device node, the three-core microcontroller unit recalculates the network topology and updates the MAC address forwarding table and routing path of each intelligent adaptive communication station device node.

6. The multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities according to claim 1, characterized in that, The first core runs a dynamic threshold algorithm, which evaluates the signal attenuation curve and movement trend of the access terminal through the dynamic threshold algorithm. When the signal attenuation curve and movement trend of the access terminal reach a preset threshold, the first core generates a deauthentication frame. The first core sends a deauthentication frame to the access terminal, and the intelligent adaptive communication station device disconnects the network connection between the access terminal and the intelligent adaptive communication station device.

7. The multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities according to claim 5, characterized in that, The three-core microcontroller unit executes a secure handshake procedure based on the 802.11r protocol; The three-core microcontroller unit pre-calculates and synchronizes the pairwise master key and temporary key required for encrypted communication between the intelligent adaptive communication station device nodes; When an access terminal moves physically between different adaptive communication station device nodes and connects to a new adaptive communication station device node, the adaptive communication station device establishes a connection with the access terminal using synchronized paired master keys and temporary keys.

8. The multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities according to claim 2, characterized in that, The general-purpose input / output pins of the three-core microcontroller unit detect the level change of the reset button, and trigger a hardware interrupt when the reset button receives a short press operation. The underlying driver of the three-core microcontroller unit performs software debouncing and sends a power distribution trigger signal. After receiving the distribution network trigger signal, the intelligent adaptive communication station equipment starts a countdown to the safe distribution network window period. During the countdown to the safe distribution network window period, the intelligent adaptive communication station equipment switches its internal state machine to the distribution network monitoring and broadcasting state. The radio frequency and antenna system switches the operating channel to a dedicated public management channel, and the adaptive communication station equipment performs a node discovery mechanism on the dedicated public management channel.

9. The multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities according to claim 8, characterized in that, The intelligent adaptive communication station equipment sends beacon frames or probe request frames containing custom manufacturer-specific information elements on a dedicated public management channel; When the first intelligent adaptive communication station device and the second intelligent adaptive communication station device detect each other's custom manufacturer-specific information element broadcast on the dedicated public management channel, compare the MAC address values ​​or the number of internally generated random seeds of the first intelligent adaptive communication station device and the second intelligent adaptive communication station device. The first or second intelligent adaptive communication station device will configure the node with the larger MAC address value or the number of internally generated random seeds as the master node, and the node with the smaller value as the slave node.

10. The multi-mode intelligent adaptive communication system with disaster recovery and self-healing capabilities according to claim 9, characterized in that, The first and second intelligent adaptive communication station devices execute the elliptic curve Diffie-Hellman key exchange protocol. The first and second intelligent adaptive communication station devices independently generate the same temporary session key locally without exchanging private keys. The first intelligent adaptive communication station device uses a temporary session key to encrypt the networking parameters, and then sends the encrypted networking parameters to the second intelligent adaptive communication station device on a dedicated public management channel. The second intelligent adaptive communication station device uses a temporary session key to decrypt the networking parameters, and then writes the decrypted networking parameters into a non-volatile memory for permanent storage. The second intelligent adaptive communication station sends a configuration confirmation frame to the first intelligent adaptive communication station and performs a system restart. After the system restart, the second intelligent adaptive communication station reads the fixed network parameters and switches the working channel from the dedicated public management channel to the service channel according to the network parameters.

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