A dual-channel chip module based on edge computing and cloud cooperation and a control method thereof

Abstract

The application discloses a kind of dual-channel chip module and control method based on edge computing and cloud cooperation, comprising the following steps: S1, in a plurality of roadside terminals respectively setting dual-channel chip module, including cellular public network communication chip, wireless local area network communication chip and unified scheduling unit;S2, establish wireless local area network connection, form end group, determine proxy node and ordinary node;S3, data service is classified, and classification result is obtained;S4, based on working state, send timing is controlled in peak-shaving;S5, obtain the wireless local area network link quality of ordinary node to proxy node, enter standby state;S6, exchange election score information, determine new proxy node;S7, execute transmission processing.The application improves the data transmission stability and alarm reporting reliability of roadside terminal in complex environment and sudden situation.

Description

Technical Field

[0001] This invention relates to the field of wireless local area network collaborative communication and cloud collaborative control technology, and in particular to a dual-channel chip module and control method based on edge computing and cloud collaboration. Background Technology

[0002] With the rapid development of smart cities, smart streetlights have evolved from simple lighting devices into roadside intelligent nodes integrating lighting, sensing, control, and alarm functions. In existing smart streetlight systems, some solutions employ a single-point direct-connection communication architecture. For example, Chinese invention patent application CN106413231A discloses a technical solution that integrates an NB-IoT communication module on a single-lamp controller, communicating directly with a cloud server via a cellular network. However, in high-density deployment scenarios along roads, configuring each light pole with an independent uplink leads to a significant increase in the number of cellular modules, higher long-term communication costs, increased overall power consumption, and redundant occupation of public network base station resources. Furthermore, the lack of local physical connectivity between nodes makes it difficult to meet the needs of grouped collaborative operation.

[0003] To reduce the cost of single-point communication, another existing technical solution adopts a master-slave concentrator architecture that combines a local area network (LAN) with a public network. For example, Chinese invention patent application CN112235894A discloses a technical solution that includes a single-lamp controller module and a centralized controller module. The single-lamp controller transmits data to the centralized controller, which then reports to the cloud via a communication module. While this master-slave architecture can reduce communication costs, it has a significant single-point failure risk, namely, a high degree of dependence on the centralized controller as a proxy node. When the quality of the local link deteriorates, the centralized controller experiences hardware failure, or the power distribution box in a local area loses power, multiple streetlight nodes in the local area will experience data reporting interruptions or even lose connection. The system lacks dynamic self-recovery capabilities and the ability to automatically migrate proxy roles.

[0004] To address the insufficient reliability of single communication links, some dual-mode communication devices have been proposed in existing technologies. For example, Chinese utility model patent CN208079472U discloses a design that simultaneously includes a power line carrier communication circuit and an RF wireless communication module, enabling the two communication channels to form a backup relationship. However, such dual-mode terminals typically only add communication devices at the hardware level, without forming a unified coordination mechanism at the system structure and communication scheduling levels. In applications with limited installation space on light poles and complex electromagnetic environments, the lack of underlying scheduling control can easily lead to radio frequency interference between the two types of communication links; at the same time, concurrent operation of dual modes may cause transient fluctuations in power supply. Furthermore, the link switching of such devices often relies on network timeout retransmission mechanisms, resulting in problems such as large switching delays and unstable transmission paths.

[0005] Furthermore, with the gradual integration of various peripherals such as flame detectors, smoke detectors, cameras, and energy storage units onto streetlights, higher demands are placed on the system's response capabilities to abnormal operating conditions. Existing technologies lack effective redundant communication mechanisms and collaborative control capabilities with energy storage units in emergency situations such as power outages, fires, or traffic accidents that cause mains power interruptions. Conventional terminals struggle to maintain communication functions after mains power outages, making it impossible to achieve cross-node alarm information transmission.

[0006] While existing smart street light systems can meet basic needs in conventional lighting management scenarios, they still have shortcomings in application scenarios such as high-density deployment, complex electromagnetic environments, and emergency response to sudden events. They lack a high degree of integration and unified scheduling mechanism for dual communication chips, making it difficult to achieve highly reliable data uplink and emergency alarm transmission for street light groups under extreme conditions.

[0007] Therefore, how to provide a dual-channel chip module and control method based on edge computing and cloud collaboration is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0008] One objective of this invention is to propose a dual-channel chip module and control method based on edge computing and cloud collaboration. This invention involves setting up a dual-channel chip module in the roadside terminal and a dual-channel communication module in both the roadside edge service controller and the terminal group structure using a cellular public network communication chip, a wireless local area network (WLAN) communication chip, and a unified scheduling unit. The invention organizes operational status data and forms data services, performs differentiated transmission processing based on the data service classification results, and simultaneously controls and adjusts the working status of the cellular public network communication chip and the WLAN communication chip through the unified scheduling unit, and performs transmission timing peak-shifting control. The invention also utilizes WLAN link quality monitoring... The continuity determination triggers the standby control of the cellular public network communication chip, and determines a new agent node through election scoring information exchange when the agent node is abnormal. This enables collaborative transmission, information feedback, and command control of data services between the terminal group and the edge server. It has the advantages of strong communication interference suppression capability, high link switching stability, strong agent node self-recovery capability, and high reliability of emergency alarm transmission. When the wireless LAN link fails, the unified scheduling unit quickly triggers the cellular public network communication chip. The terminal group devices and edge servers communicate with the remote cloud server through the cellular public network communication to ensure the normal operation of the terminal group devices and their control by the remote cloud server.

[0009] A dual-channel chip module and control method based on edge computing and cloud collaboration according to an embodiment of the present invention includes the following steps: S1. A dual-channel chip module is set in multiple roadside terminals respectively. The dual-channel chip module includes a cellular public network communication chip, a wireless local area network communication chip and a unified scheduling unit. S2. Establish wireless local area network connections between multiple roadside terminals through the wireless local area network communication chip to form a terminal group, and determine agent nodes and ordinary nodes in the terminal group; S3. Obtain the operating status data of each roadside terminal, organize the operating status data, generate data services, classify the data services, and obtain the classification results; S4. Obtain the working status of the cellular public network communication chip and the wireless local area network communication chip, and perform peak-shaving control on the transmission timing of the cellular public network communication chip and the wireless local area network communication chip based on the working status. S5. Obtain the wireless LAN link quality from the ordinary node to the proxy node, and determine the continuity of the wireless LAN link quality. If the wireless LAN link quality meets the condition of continuous decline, control the cellular public network communication chip of the corresponding ordinary node to enter the standby state. S6. If the proxy node malfunctions, the election scoring information is exchanged within the terminal group via the wireless local area network, and a new proxy node is determined. S7. Based on the classification results, perform transmission processing on the data service through the terminal group and the proxy node.

[0010] Optionally, the dual-channel chip module has a module substrate inside, and a first communication chip, a second communication chip, a unified scheduling unit, a power management unit, a clock unit, and a status detection unit are disposed on the module substrate.

[0011] Optionally, the module substrate is specifically: The module base plate is divided into a cellular public network communication area, a wireless local area network communication area, a unified scheduling and control area, a power management area, and a clock and status detection area. The first communication chip is located in the cellular public network communication area, the second communication chip is located in the wireless local area network communication area, the unified scheduling unit is located in the unified scheduling control area, the power management unit is located in the power management area, and the clock unit and the status detection unit are located in the clock and status detection area.

[0012] Optionally, determining the proxy node and the ordinary node in the end group specifically involves: Within the terminal group, information exchange between nodes is conducted via wireless LAN; Within the end group, obtain the link health, remaining energy storage ratio, adjacency, load factor, and historical stability of each roadside terminal; Based on comparisons of link health, remaining energy storage ratio, adjacency, load factor, and historical stability, a roadside terminal is selected as the proxy node. Roadside terminals in the terminal group, excluding agent nodes, are defined as ordinary nodes.

[0013] Optionally, S3 specifically includes: Operational status data is collected through roadside terminals, including switch status, dimming value, and energy consumption data. The runtime status data is time-aligned to obtain an aligned runtime status data sequence. Anomaly identification processing is performed on the running status data sequence to obtain an identified running status data sequence; Organize the identified operational status data sequences to generate data services; Based on the identification results in the operational status data sequence, data services are classified to obtain basic operational data, equipment alarm data, and emergency alarm data.

[0014] Optionally, S4 specifically includes: The working status of the cellular public network communication chip and the wireless local area network communication chip is obtained through a unified scheduling unit. The working status includes network attachment status, synchronization status, transmission status, buffer status and abnormal interruption status. The scheduling period is divided according to the working status, and the cellular public network transmission period and wireless local area network transmission period are allocated within the scheduling period; When the cellular public network communication chip is in the transmitting state, the wireless local area network communication chip is controlled by the unified scheduling unit to enter the controlled listening state or reduce the transmitting power. When the wireless LAN communication chip is in network synchronization, critical broadcast, or routing maintenance state, the transmission start time of the cellular public network communication chip is delayed through a unified scheduling unit.

[0015] Optionally, when the cellular public network communication chip is in the transmitting state, the unified scheduling unit controls the wireless local area network communication chip to enter a controlled listening state or reduce its transmission power, specifically as follows: When the cellular public network communication chip is in the transmitting state and the wireless local area network communication chip is not in the networking synchronization state, not in the critical broadcast state, or in the routing maintenance state, the wireless local area network communication chip can be controlled to enter the controlled listening state by the unified scheduling unit using the control line method or register configuration method. When the cellular public network communication chip is in the transmit state and the wireless local area network communication chip is in the network synchronization state, the critical broadcast state, or the route maintenance state, the transmit power of the wireless local area network communication chip can be reduced to a level lower than that in the network synchronization state by the unified scheduling unit using control line method or register configuration method.

[0016] Optionally, S5 specifically includes: The receiver strength, latency, frame loss rate, and retransmission count of the wireless LAN communication link between the ordinary node and the agent node are obtained to determine the quality of the wireless LAN link. The moving average value is obtained by performing a moving average process on the wireless LAN link quality. The magnitude of the continuous downward trend is determined by the moving average of adjacent time periods; If the moving average meets the preset downward trend threshold and the continuous downward trend amount meets the preset downward trend threshold, then the cellular public network communication chip of the corresponding ordinary node is controlled to enter the standby state.

[0017] Optionally, S6 specifically includes: Within the end group, obtain the link health, remaining energy storage ratio, adjacency, load factor, and historical stability of ordinary nodes; The election score information is calculated based on link health, remaining energy storage ratio, adjacency, load factor, and historical stability. Election score information is exchanged within the terminal group via wireless LAN; The election score information is compared, and the ordinary node with the highest score that meets the basic threshold is determined as the new proxy node.

[0018] Optionally, S7 specifically includes: If the classification result is the basic operating data, the basic operating data is sent to the agent node through the wireless local area network communication chip of the ordinary node, and then sent to the cloud control platform through the cellular public network communication chip of the agent node. If the classification result is device alarm data, the device alarm data is sent to the agent node through the wireless LAN communication chip of the ordinary node, and then sent to the cloud control platform through the cellular public network communication chip of the agent node. If the classification result is emergency alarm data, then dual-link redundant reporting is performed. The emergency alarm data is sent to the associated nodes in the terminal group through the wireless LAN communication chip of the trigger node, and then sent to the cloud control platform through the agent node and the trigger node via the cellular public network communication chip.

[0019] The beneficial effects of this invention are: By setting up a dual-channel chip module in the roadside terminal, the cellular public network communication chip, wireless local area network communication chip and unified scheduling unit are integrated on the module substrate. The power management unit, clock unit and status detection unit realize unified power supply, unified clock and unified status feedback. Combined with the partitioned layout of the module substrate, the integration of core communication components and the engineering adaptability of roadside terminal are improved. The unified scheduling unit obtains the network attachment status, synchronization status, transmission status, buffer status, and abnormal interruption status of the cellular public network communication chip and the wireless local area network communication chip, and performs peak-shifting control on the transmission timing according to the working status. When the cellular public network communication chip is transmitting, the wireless local area network communication chip is controlled to enter a controlled listening state or reduce the transmission power. When the wireless local area network communication chip is in a network synchronization state, a critical broadcast state, or a route maintenance state, the cellular public network communication chip is delayed from transmitting, thereby reducing dual-link interference and improving communication stability. By acquiring the wireless LAN link quality from ordinary nodes to proxy nodes, and performing sliding average processing and continuous decline trend determination based on received strength, latency, frame loss rate, and retransmission count, the cellular public network communication chip of ordinary nodes is controlled to enter standby state when the link quality meets the continuous decline condition. At the same time, when the proxy node is abnormal, the election scoring information is exchanged based on link health, remaining energy storage ratio, adjacency, load factor, and historical stability to determine a new proxy node, thereby improving the self-recovery capability of end group communication. By generating data services from operational status data and classifying them, dual-link redundant reporting is implemented when the classification result is emergency alarm data. The data is then distributed and synchronized within the terminal group via wireless LAN, and transmitted to the cloud control platform by the agent node and trigger node respectively through the cellular public network communication chip. This improves the reliability and transmission success rate of emergency alarm data reporting in power outages, faults, and complex environments. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a flowchart of a dual-channel chip module and control method based on edge computing and cloud collaboration proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the dual-channel chip module proposed in this invention.

[0021] Figure 3 This is a schematic diagram of the connection structure of the dual-channel chip module proposed in this invention installed on the motherboard of a roadside terminal.

[0022] Figure 4 This is a schematic diagram of the application structure of the dual-channel chip module proposed in this invention in a roadside group; Figure 5 This is a timing diagram illustrating the unified scheduling and proxy takeover of the dual-channel chip module proposed in this invention. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0024] refer to Figures 1-5 A dual-channel chip module and control method based on edge computing and cloud collaboration includes the following steps: S1. Dual-channel chip modules are set in multiple roadside terminals respectively. The dual-channel chip modules include cellular public network communication chips, wireless local area network communication chips and unified scheduling units. S2. Establish wireless local area network connections between multiple roadside terminals through a wireless local area network communication chip to form a terminal group, and determine agent nodes and ordinary nodes in the terminal group; S3. Obtain the operating status data of each roadside terminal, organize the operating status data, generate data services, classify the data services, and obtain the classification results; S4. Obtain the working status of the cellular public network communication chip and the wireless local area network communication chip, and perform peak-shaving control on the transmission timing of the cellular public network communication chip and the wireless local area network communication chip based on the working status. S5. Obtain the wireless LAN link quality from the ordinary node to the proxy node, and determine the continuity of the wireless LAN link quality. If the wireless LAN link quality meets the condition of continuous decline, control the cellular public network communication chip of the corresponding ordinary node to enter the standby state. S6. If the proxy node malfunctions, the election score information is exchanged within the end group via the wireless LAN, and a new proxy node is determined. S7. Based on the classification results, perform transmission processing on data services through end groups and proxy nodes.

[0025] This implementation addresses the problems of single communication links, lack of unified scheduling for dual-mode communication, and strong dependency on proxy nodes in existing smart street light systems. It proposes a dual-channel chip module and control method based on edge computing and cloud collaboration. By integrating a cellular public network communication chip, a wireless local area network (WLAN) communication chip, and a unified scheduling unit on the module substrate, and combining them with a power management unit, clock unit, and status detection unit, a unified power supply, unified time reference, and unified status awareness system is formed, enabling a collaborative structure between the two communication links at the hardware and scheduling levels. Furthermore, the unified scheduling unit acquires network status, synchronization status, transmission status, buffer status, and abnormal interruption status, dividing the service cycle into scheduling cycles and executing transmission timing staggered control. When the cellular public network communication chip is transmitting, the WLAN communication chip is controlled to enter a controlled listening state or reduce its transmission power. The cellular public network communication chip transmits after a delay during network synchronization, critical broadcast, or route maintenance states, thereby reducing dual-link interference on the same board and improving communication stability. Simultaneously, by performing moving average processing and continuous decline trend determination on the wireless LAN link quality from ordinary nodes to proxy nodes, the cellular public network communication chip is preemptively put into standby mode when the link quality meets the continuous decline condition. Combined with a proxy node abnormality situation, a selection scoring information exchange mechanism based on link health, remaining energy storage ratio, adjacency, load coefficient, and historical stability enables dynamic replacement of proxy nodes and group self-recovery. Furthermore, by generating and classifying data services from operational status data, dual-link redundant reporting is executed when the classification result is emergency alarm data, enabling WLAN diffusion transmission and multi-node uplink of the cellular public network to coordinate, improving data transmission success rate and alarm reliability in emergency scenarios. Therefore, under conditions such as high-density deployment, complex electromagnetic environments, and sudden power outages, the communication continuity, link switching smoothness, and overall system reliability of roadside terminal groups can be significantly improved.

[0026] In this embodiment, a module substrate is provided inside the dual-channel chip module, and a first communication chip, a second communication chip, a unified scheduling unit, a power management unit, a clock unit, and a status detection unit are provided on the module substrate. The dual-channel chip module is a core communication component that can be independently packaged and installed on the roadside terminal motherboard. It preferably uses an LGA surface mount pad structure, a stamp hole soldering structure, or a board-to-board connector structure to connect to the terminal motherboard. The dual-channel chip module contains a module substrate. The overall shape of the dual-channel chip module is a rectangular or near-rectangular package. The upper surface of the dual-channel chip module is covered with a metal shield, and the lower surface forms a pin pad area for connection to the terminal motherboard. The metal shield covers the first communication chip, the second communication chip, the unified scheduling unit, and the corresponding high-frequency front-end area, and is connected to the ground plane of the module substrate through a grounding point to improve the dual-channel performance. The stability of the channel chip module in roadside metal environments and strong interference environments; the pin pad area includes power pin groups, ground pin groups, main control communication pin groups, reset and wake-up pin groups, interrupt feedback pin groups, cellular public network RF pin groups, wireless LAN RF pin groups, and debugging pin groups; the main control communication pin groups include SPI interface, UART interface, or I2C interface; the interrupt feedback pin groups are used to output network completion, transmission completion, link abnormality, buffer alarm, and role switching status signals to the external main control processor; the reset and wake-up pin groups are used to perform power-on initialization, graded wake-up, and low-power recovery control.

[0027] In this embodiment, the module substrate is specifically: The module substrate is divided into a cellular public network communication area, a wireless local area network (WLAN) communication area, a unified scheduling and control area, a power management area, and a clock and status detection area. The first communication chip is located in the cellular public network communication area and is used to establish a cellular public network connection with the cloud control platform. The second communication chip is located in the WLAN communication area and is used to establish a WLAN connection between adjacent roadside terminals. The unified scheduling unit is located between the cellular public network communication area and the WLAN communication area or near the main control communication pin group, and is used to receive the operating status of the first and second communication chips and output transmit / receive control commands. The power management unit is located near the power pin group and is used to convert the external input voltage into the operating voltage required by the first communication chip, the second communication chip, the unified scheduling unit, and the clock unit. The clock unit and the status detection unit are located in the middle or edge of the module substrate. The clock unit provides a unified reference clock to the first communication chip, the second communication chip, and the unified scheduling unit, and the status detection unit is used to detect power status, temperature status, network connection status, transmission status, buffer status, and abnormal interruption status. The first communication chip is a cellular public network communication chip, preferably a 4G Cat.1 chip, a 4G Cat.4 chip, an NB-IoT and LTE combined chip, or other cellular public network communication chips. The radio frequency (RF) terminal of the first communication chip is connected to the cellular antenna interface through a cellular public network RF matching network. The second communication chip is a wireless local area network (WLAN) communication chip, preferably a Sub-GHz self-organizing wireless network chip, a LoRa WLAN communication chip, a Wi-Fi HaLow communication chip, or other communication chips suitable for establishing WLAN connections between roadside terminals. The RF terminal of the second communication chip is connected to the WLAN antenna interface through a WLAN RF matching network. The cellular public network RF matching network and the wireless local area network RF matching network are respectively located on the side of the module substrate near the corresponding antenna interface, and are laid out in a partitioned wiring manner. A grounding area, isolation strip or shielded via array is set between the cellular public network RF matching network and the wireless local area network RF matching network to reduce parasitic coupling and co-board interference between the two RF channels. The cellular antenna interface and the wireless LAN antenna interface are respectively located on opposite sides or adjacent sides of the dual-channel chip module to increase the physical distance between the two radio frequency channels; where the installation space of the roadside terminal allows, the cellular antenna and the wireless LAN antenna are respectively located at different positions on the roadside terminal housing to further reduce the mutual coupling between the two radio frequency channels. The power management unit includes an input filter circuit, a surge and overvoltage protection circuit, a main buck regulator branch, and a controlled power switch branch. After the external motherboard inputs DC power to the dual-channel chip module, the input filter circuit suppresses ripple and pulse interference, the surge and overvoltage protection circuit clamps abnormal inputs, and the main buck regulator branch outputs a first operating voltage and a second operating voltage to supply the cellular public network communication chip and the wireless local area network communication chip, respectively. A third operating voltage is also output as needed to supply the unified scheduling unit and the clock unit. The controlled power switch branch is controlled by the unified scheduling unit, which puts the cellular public network communication chip and the wireless local area network communication chip into sleep mode, standby mode, or working mode respectively, realizing domain-specific power supply and dynamic power consumption management within the dual-channel chip module. When the wireless local area network link is in a normal state, the unified scheduling unit controls the cellular public network communication chip to maintain a sleep mode or a low-power standby mode. When the wireless local area network link meets the continuous decline condition or a proxy node switch occurs, the unified scheduling unit controls the cellular public network communication chip to enter a wake-up state. The clock unit includes a reference crystal oscillator and a clock buffer or distribution circuit. The reference crystal oscillator outputs a unified clock reference, which is then fed into the first communication chip, the second communication chip, and the unified scheduling unit, respectively, so that the two links inside the dual-channel chip module work under the same time reference. The unified scheduling unit divides the service cycle into repeated scheduling frames based on a unified time base, and allocates cellular public network transmission windows and wireless local area network transmission windows within the scheduling frames; While the cellular public network communication chip is in the transmission state, the unified scheduling unit controls the wireless local area network communication chip to enter the controlled listening state or reduce the transmission power through control line method or register configuration method; while the wireless local area network communication chip is in the network synchronization state, critical broadcast state or route maintenance state, the unified scheduling unit postpones the transmission start time of the cellular public network communication chip to the subsequent transmission window within the scheduling frame, so as to reduce the transmission conflict of dual channels within the same module; The status detection unit summarizes the network status, synchronization status, transmission duty status, buffer full status and abnormal interrupt status of the first communication chip and the second communication chip into a status word, and sends it to the external main control processor through the interrupt feedback pin group or the main control communication pin group to support the roadside terminal to perform agent node determination, data queuing and event response control. At least one serial control link and one interrupt feedback link are established between the dual-channel chip module and the external main control processor. Reset and wake-up links are set as needed. The external main control processor does not participate in the dual-radio underlying timing competition, but only issues service type identifiers, transmission priority identifiers, node role identifiers and power consumption control commands to the dual-channel chip module. The unified scheduling unit inside the dual-channel chip module completes the time slot arrangement, window switching, power limiting and state switching between the cellular public network communication chip and the wireless local area network communication chip. Through the above structure, the dual-channel chip module can be embedded as an independent communication core component into different types of roadside terminals, reducing the dependence on the lighting main control board structure.

[0028] In this embodiment, the agent node and the ordinary node are determined in the end group, specifically as follows: After the dual-channel chip module is installed on the roadside edge control terminal, smart street light terminal, roadside sensing pole, edge collector or microgrid control node, multiple roadside terminals with dual-channel chip modules can form a terminal group through a wireless local area network. Within the terminal group, information exchange between nodes is conducted via wireless LAN; Within the end group, obtain the link health, remaining energy storage ratio, adjacency, load factor, and historical stability of each roadside terminal; Based on comparisons of link health, remaining energy storage ratio, adjacency, load factor, and historical stability, a roadside terminal is selected as the proxy node. Roadside terminals in the terminal group, excluding agent nodes, are defined as ordinary nodes.

[0029] In this embodiment, S3 specifically refers to: Operational status data is collected through roadside terminals, including switch status, dimming value, and energy consumption data. The runtime status data is time-aligned to obtain an aligned runtime status data sequence; the runtime status data sequence is anomaly-identified to obtain an anomaly-identified runtime status data sequence; the anomaly-identified runtime status data sequence is then processed to generate data services. Data services are categorized based on the identifiers in the operational status data sequence. These services are divided into basic operational data, equipment alarm data, and emergency alarm data. Basic operational data includes light on / off status, dimming values, energy consumption values, periodic heartbeats, Wi-Fi connection status, and energy storage information. Equipment alarm data includes light fixture malfunctions, driver anomalies, current deviations, overheating, energy storage degradation, abnormal door opening, module self-test anomalies, and Wi-Fi anomalies. Emergency alarm data includes information on power outages, fires, accidents, abnormal smoke, and road congestion. The unified scheduling unit selects the transmission path based on the service type and link status. Basic operational data is sent to the agent node via wireless LAN and then to the cloud control platform via cellular public network communication chip. Device alarm data is sent to the agent node via wireless LAN and then to the cloud control platform via cellular public network communication chip. Emergency alarm data is sent in parallel using a combination of wireless LAN diffusion synchronization and multi-node transmission via cellular public network communication chip.

[0030] In this embodiment, S4 specifically refers to: The working status of the cellular public network communication chip and the wireless local area network communication chip is obtained through the unified scheduling unit. The working status includes network attachment status, synchronization status, transmission status, buffer status and abnormal interruption status. The scheduling cycle is divided according to the working status, and the cellular public network transmission time period and wireless local area network transmission time period are allocated within the scheduling cycle; When the cellular public network communication chip is in the transmitting state, the wireless local area network communication chip is controlled by the unified scheduling unit to enter the controlled listening state or reduce the transmitting power. When the wireless LAN communication chip is in network synchronization, critical broadcast, or routing maintenance state, the transmission start time of the cellular public network communication chip is delayed through a unified scheduling unit.

[0031] In this embodiment, when the cellular public network communication chip is in the transmitting state, the unified scheduling unit controls the wireless local area network communication chip to enter a controlled listening state or reduce its transmission power, specifically as follows: When the cellular public network communication chip is in the transmitting state and the wireless local area network communication chip is not in the networking synchronization state, not in the critical broadcast state, or in the routing maintenance state, the wireless local area network communication chip can be controlled to enter the controlled listening state by the unified scheduling unit using the control line method or register configuration method. When the cellular public network communication chip is in the transmit state and the wireless local area network communication chip is in the network synchronization state, the critical broadcast state, or the route maintenance state, the transmit power of the wireless local area network communication chip can be reduced to a level lower than that in the network synchronization state by the unified scheduling unit using control line method or register configuration method.

[0032] In this embodiment, S5 specifically refers to: The receiver strength, latency, frame loss rate, and retransmission count of the wireless LAN communication link between the ordinary node and the agent node are obtained to determine the quality of the wireless LAN link. The quality of the wireless LAN link is processed by moving average to obtain the moving average value; the continuous downward trend is determined based on the moving average value of adjacent time periods; if the moving average value meets the preset downward trend threshold and the continuous downward trend value meets the preset downward trend threshold, the cellular public network communication chip of the corresponding ordinary node is controlled to enter the standby state; the preset downward trend threshold is determined by historical normal operation samples. To provide the terminal with clear judgment criteria, implementable judgment formulas are constructed for both device alarms and emergency alarms. For device alarms, let the... The device health parameters during the sampling period The measured value is The rated value is The allowable deviation is Then the normalized bias Defined as: ; Tim ; in, Weights for each health parameter, satisfying ;when At that time, the system determined it to be a device alarm, among which This is the device alarm threshold.

[0033] For emergency alarms, the normalized result of the flame detection intensity is set as follows: The normalized result of the smoke concentration is The normalized result of the video anomaly score is The normalized result of the road occupancy or accident score is The normalized result of the power supply anomaly score is The comprehensive score for emergency events is then calculated. Defined as: ; in .when At that time, the system determined it to be an emergency alarm.

[0034] This implementation method establishes a continuity evaluation mechanism for the local area network link between ordinary light poles and proxy light poles; a node is set. During the sampling period The normalized value of the local area network link received strength is The normalized delay value is The normalized value of the frame drop rate is The normalized value of the number of retransmissions is The local area network link quality score is then calculated. It can be represented as: ; in, To avoid malfunctions triggered by random fluctuations in a single period, this invention further defines its moving average as: ; And define its continuous downward trend quantity as: ; when And it satisfies the following conditions in a series of consecutive periods. When the system determines that the local area network quality from the node to the proxy node is continuously declining, it triggers the local 4G chip of the node to standby in advance. Standby in advance does not immediately cut off the local area network upload, but allows the 4G chip to complete the network attachment and cache preparation, so as to form a smooth connection condition before the local area network becomes truly unavailable.

[0035] In this embodiment, S6 specifically refers to: Within the end-user group, obtain the link health, remaining energy storage ratio, adjacency, load factor, and historical stability of ordinary nodes; calculate election score information based on the link health, remaining energy storage ratio, adjacency, load factor, and historical stability; exchange election score information within the end-user group via wireless LAN; compare the election score information and determine the ordinary node with the highest score that meets the basic threshold as the new proxy node; Regarding the automatic election of proxy nodes, this implementation requires each node in the end group with election capabilities to calculate a proxy priority score based on its own status. Let the nodes... The 4G link health status is The remaining energy storage ratio is The local area network adjacency is The load factor is Historical stability is Then the proxy election score It can be represented as: ; in, When the current proxy node exits abnormally, each node in the end group broadcasts its own information. The node with the highest score that meets the basic threshold becomes the new proxy node.

[0036] In this embodiment, S7 specifically refers to: If the classification result is the basic operating data, the basic operating data is sent to the agent node through the wireless LAN communication chip of the ordinary node, and then sent to the cloud control platform through the cellular public network communication chip of the agent node. If the classification result is device alarm data, the device alarm data is sent to the agent node through the wireless LAN communication chip of the ordinary node, and then sent to the cloud control platform through the cellular public network communication chip of the agent node. If the classification result is emergency alarm data, then dual-link redundant reporting is performed. The emergency alarm data is sent to the associated nodes in the end group through the wireless LAN communication chip of the trigger node, and then sent to the cloud control platform through the agent node and the trigger node via the cellular public network communication chip respectively. Based on a unified time base, the timeline is divided into repeated scheduling frames, with the length of a single scheduling frame being [length missing]. This includes a local area network synchronization window. Local Area Network Data Window 4G window and Protect Window Then we have: ; Within the local area network (LAN) synchronization window, the LAN chip handles network synchronization, time alignment, and critical broadcasts, while the 4G chip delays transmission. Within the 4G window, if a 4G transmission task exists, the LAN chip enters a controlled monitoring state or reduces its transmission power. Let the normal LAN transmission power be... The actual transmission power of the local area network during 4G transmission is Then we have: ; in ;when This indicates that the local area network has been completely switched to listening mode. When the local area network (LAN) is in a reduced-power mode to maintain necessary connections, it indicates that the 4G transmission has started. Conversely, when the LAN is in a critical synchronization broadcast state, the 4G transmission begins at a certain time. It needs to meet the requirement of not entering the synchronization window, that is: ; If the originally scheduled sending time falls within If the 4G transmission is delayed until the next available 4G window, then the 4G transmission will be postponed. Through this unified scheduling formula, the two types of communication form an executable off-peak coordination relationship within a single terminal.

[0037] In handling emergency alarms within the warning area, dual-link redundant transmission is further employed. Assume there are a total of [number missing] [units missing] within the warning area. There are [number] related light pole nodes, and the event packet length of each node is as follows: , , , The compression ratios of event digests used for rapid dissemination within the local area network are respectively , , , The total amount of information rapidly synchronized on the local area network of the warning area is: ; Simultaneously, proxy nodes, trigger nodes, or other candidate key nodes perform redundant uploads via 4G. If the complete aggregate packet is uploaded via the proxy node, and key nodes upload critical segments, then the amount of information redundantly uploaded via 4G is: ; in, This represents the set of key redundant nodes. For the first Redundancy ratio coefficient of key nodes.

[0038] Example 1: To verify the feasibility of this invention in practice, it was applied to a scenario of grouped control and alarm communication for roadside terminals of a smart street light. For example... Figure 2As shown, the dual-channel chip module 1 is provided with a module substrate 11, on which a first communication chip 2, a second communication chip 3, a unified scheduling unit 4, a clock unit 5, a power management unit 6, and a status detection unit 7 are arranged. The first communication chip 2 is a cellular public network communication chip, and its RF output terminal is connected to the cellular antenna interface 22 via the cellular public network RF matching network 21. The second communication chip 3 is a wireless local area network communication chip, and its RF output terminal is connected to the wireless local area network antenna interface 32 via the wireless local area network RF matching network 31. The unified scheduling unit 4 is connected to the first communication chip 2 and the second communication chip 3 respectively, and is used to perform time slot control, window switching, conflict management, and role control. The clock unit 5 provides a unified reference clock to the first communication chip 2, the second communication chip 3, and the unified scheduling unit 4. The power management unit 6 includes an input filter circuit 61, a surge and overvoltage protection circuit 62, a main buck regulator branch 63, and a controlled power switch branch 64, and is used to provide domain-specific power supply to each functional unit inside the module. The status detection unit 7 detects the network connection status, transmission status, buffer status, and abnormal interrupt status of the first communication chip 2 and the second communication chip 3. To reduce interference on the same board, a grounding isolation strip or shielded via array area 8 is provided between the first communication chip 2 and the second communication chip 3. A pin pad area 13 is formed on the lower edge of the module substrate 11. The pin pad area 13 includes at least a power pin group 131, a ground pin group 132, a main control communication pin group 133, a reset and wake-up pin group 134, an interrupt feedback pin group 135, a cellular public network RF pin group 136, a wireless local area network RF pin group 137, and a debug pin group 138. A metal shield 12 covers the top of the module to improve the stability of the dual-channel chip module 1 in complex electromagnetic environments.

[0039] like Figure 3 As shown, the dual-channel chip module 1 is installed on the roadside terminal motherboard 9. The main control processor 91 exchanges service commands and status information with the dual-channel chip module 1 through the main control communication pin group 133, realizes module wake-up and low-power recovery through the reset and wake-up pin group 134, and receives interrupt information such as network completion, transmission completion, and role switching through the interrupt feedback pin group 135. The main control processor 91 is also connected to the lighting control circuit 92, the status acquisition circuit 93, the flame detector / smoke detector / camera interface 94, the energy storage management circuit 95, and the power conversion circuit 96. Among them, the energy storage management circuit 95 is connected to the energy storage battery pack 97, the power conversion circuit 96 is connected to the main power input 98, and the lighting control circuit 92 is connected to the LED driver or lighting interface 99. Thus, the dual-channel chip module 1 undertakes the core functions of communication and scheduling inside the terminal, while lighting control, energy consumption acquisition, environmental perception, and energy storage management are completed by the main control processor 91 in conjunction with the peripheral circuits.

[0040] Multiple roadside terminal motherboards 9 equipped with dual-channel chip modules 1 constitute a roadside node group, such as Figure 4 As shown, one node acts as a proxy node. Its dual-channel chip module 1 controls the first communication chip 2 to maintain online access to the cellular public network and establishes a connection with the cloud control platform through the cellular antenna interface 22. The remaining ordinary nodes establish wireless LAN connections with the proxy node through their respective second communication chips 3 and wireless LAN antenna interfaces 32. The basic operational data of the ordinary nodes is first uploaded to the proxy node via the wireless LAN, and then the proxy node uniformly sends it to the cloud via the cellular public network. This significantly reduces the probability of all nodes in the group simultaneously occupying cellular public network resources for a long period of time.

[0041] A group of 12 smart streetlights has been deployed along a main road in a city, forming a light pole cluster. Each light pole is equipped with a terminal of this invention. Each terminal includes a dual-communication chip package consisting of a 4G chip and a Sub-GHz local area network chip, a lamp current and voltage acquisition circuit, a flame detector, a door status switch, an energy storage management circuit, and a local area network antenna. Light pole number 3 is initially selected as the 4G proxy node, and the remaining 11 light poles are connected to light pole number 3 via the local area network, transmitting their periodic operational data to light pole number 3 for aggregation.

[0042] Under normal operating conditions, let's assume that the fifth light pole is in a certain sampling period. The measured operating current of the lamp was 2.82A, the rated current was 2.50A, and the allowable deviation was 0.20A; the energy storage capacity conversion deviation score was 0.30; the normal status score of the cabinet door was 0; and the internal temperature rise deviation score was 0.25. If the weights for these four health indicators are set to 0.40, 0.25, 0.10, and 0.25 respectively, then the health score of the No. 5 lamp post equipment is: ; ; ; If the device alarm threshold is set to Then because The system determines that the device is alarming. At this time, the No. 5 light pole does not need to trigger the regional emergency strategy. Instead, it sends the device alarm packet to the No. 3 agent light pole via the local area network, and then the No. 3 light pole uploads it to the control platform via 4G for the generation of a repair work order.

[0043] Still using the group of 12 light poles as the object, assume that the LAN link scores of light pole number 8 in five consecutive sampling periods are 0.74, 0.68, 0.61, 0.55, and 0.48, respectively. If the sliding window length... Then, in the 5th sampling period, its moving average link score is: ; If the moving average of the previous period is: ; Then its trend quantity is: ; If the system sets a local area network early warning threshold Trend threshold Then, in the 5th sampling period, it satisfies and Therefore, the 8th lamp post triggers 4G pre-activation. After activation, the 8th lamp post maintains its local area network upload function, but its local 4G chip is activated and completes network connection preparation. If the local area network subsequently experiences further interruption, the 8th lamp post can directly switch to independent 4G upload without waiting for 4G cold start and network connection.

[0044] Assume the original proxy node, light pole #3, goes offline due to a power failure. Candidate nodes #2, #6, and #9 within the group participate in a new proxy election. Let their 4G link health be 0.86, 0.78, and 0.90 respectively; their remaining energy storage ratios be 0.72, 0.90, and 0.51 respectively; their LAN adjacency be 0.88, 0.76, and 0.70 respectively; their load factors be 0.30, 0.20, and 0.45 respectively; and their historical stability be 0.82, 0.79, and 0.76 respectively. If the election weights are taken as... , , , , The election scores for the three candidates are as follows: ; ; ; ; ; ; Therefore, we obtain Therefore, light pole #2 was selected as the new proxy node. Although light pole #6 has higher energy storage, light pole #2 is slightly better after considering public network capability, adjacency, and stability, and is therefore more suitable as the new 4G uplink proxy.

[0045] Set the scheduling frame length Local area network synchronization window Local Area Network Data Window 4G window Protect window Therefore, we have: ; Suppose that at the start of a certain frame, the second agent light pole needs to complete a 4G upload, and the local area network also needs to perform a critical synchronization broadcast. If the originally planned start time for 4G transmission falls at 10ms, then this time falls within the local area network synchronization window. Therefore, 4G transmission is delayed until the next available 4G window after the synchronization window ends, for example, starting at 50ms. Meanwhile, during the 4G window from 50ms to 90ms, the local area network chip is controlled by the unified scheduling unit to enter a controlled listening state. Figure 5 As shown, if the normal transmission power of the local area network is Power reduction factor set During 4G transmission, the local area network transmission power becomes: ; If the control is purely for listening, then it is acceptable. .

[0046] Suppose that the flame detector first detects the normalized value of the lamp post number 10. The smoke detector outputs a normalized value. Camera video anomaly score Road accident rating Power supply anomaly rating If the emergency event weight is set to... , , , , Therefore, its comprehensive emergency response score is: ; If the single-point emergency threshold is set to If the alarm is triggered, light pole number 10 will be identified as having an emergency. Light pole number 10 will then broadcast an event summary via the local area network to its neighboring light poles number 9 and 11. Assuming that light poles 9 and 11 receive emergency scores of 0.58 and 0.64 respectively based on their respective sensors, and if the warning area uses an equal-weighted regional scoring system, the comprehensive score for the warning area comprised of the three nodes is:

[0047] If the region threshold If the warning area is confirmed, the system enters dual-link redundancy mode. Let the complete event packet lengths of the three nodes be respectively... , , The local area network digest compression ratios are respectively , , The total amount of rapid spread within the local area network is: ; ; If the proxy node uploads the complete aggregate package, trigger node 10 to upload its own key fragments, and set its redundancy ratio. The total 4G uplink volume is: ; ; The results show that the local area network can quickly complete regional synchronization with a low transmission volume, while 4G can complete external alarms with high reliability. The division of labor between the two links is clear and meets the preset objectives of this invention.

[0048] This invention can achieve results consistent with preset objectives in various real-world scenarios, including device alarms, emergency alarms, continuous degradation of local area network (LAN) power, proxy node anomalies, dual-link conflicts, and regional power outages. Device-related problems can be identified and reported via proxy uplink; LAN link deterioration can trigger 4G standby in advance; after proxy node failure, a more suitable light pole can automatically take over the uplink role; 4G and LAN can transmit data through a unified window during off-peak hours; emergency events within the warning area can achieve higher reliability through LAN propagation and redundant 4G reporting; and the microgrid power supply mechanism can support the continuous operation of critical nodes during power outages. Therefore, this invention has a clear structural foundation, implementable control logic, and good application effects.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dual-channel chip module and control method based on edge computing and cloud collaboration, characterized in that, Includes the following steps: S1. A dual-channel chip module is set in multiple roadside terminals respectively. The dual-channel chip module includes a cellular public network communication chip, a wireless local area network communication chip and a unified scheduling unit. S2. Establish wireless local area network connections between multiple roadside terminals through the wireless local area network communication chip to form a terminal group, and determine agent nodes and ordinary nodes in the terminal group; S3. Obtain the operating status data of each roadside terminal, organize the operating status data, generate data services, classify the data services, and obtain the classification results; S4. Obtain the working status of the cellular public network communication chip and the wireless local area network communication chip, and perform peak-shaving control on the transmission timing of the cellular public network communication chip and the wireless local area network communication chip based on the working status. S5. Obtain the wireless LAN link quality from the ordinary node to the proxy node, and determine the continuity of the wireless LAN link quality. If the wireless LAN link quality meets the condition of continuous decline, control the cellular public network communication chip of the corresponding ordinary node to enter the standby state. S6. If the proxy node malfunctions, the election scoring information is exchanged within the terminal group via the wireless local area network, and a new proxy node is determined. S7. Based on the classification results, perform transmission processing on the data service through the terminal group and the proxy node.

2. The dual-channel chip module and control method based on edge computing and cloud collaboration according to claim 1, characterized in that, The dual-channel chip module has a module substrate inside, and a first communication chip, a second communication chip, a unified scheduling unit, a power management unit, a clock unit, and a status detection unit are arranged on the module substrate.

3. The dual-channel chip module and control method based on edge computing and cloud collaboration according to claim 2, characterized in that, The module substrate is specifically: The module base plate is divided into a cellular public network communication area, a wireless local area network communication area, a unified scheduling and control area, a power management area, and a clock and status detection area. The first communication chip is located in the cellular public network communication area, the second communication chip is located in the wireless local area network communication area, the unified scheduling unit is located in the unified scheduling control area, the power management unit is located in the power management area, and the clock unit and the status detection unit are located in the clock and status detection area.

4. The dual-channel chip module and control method based on edge computing and cloud collaboration according to claim 1, characterized in that, The process of determining the proxy nodes and ordinary nodes in the end group specifically involves: Within the terminal group, information exchange between nodes is conducted via wireless LAN; Within the end group, obtain the link health, remaining energy storage ratio, adjacency, load factor, and historical stability of each roadside terminal; Based on comparisons of link health, remaining energy storage ratio, adjacency, load factor, and historical stability, a roadside terminal is selected as the proxy node. Roadside terminals in the terminal group, excluding agent nodes, are defined as ordinary nodes.

5. The dual-channel chip module and control method based on edge computing and cloud collaboration according to claim 1, characterized in that, Specifically, S3 is: Operational status data is collected through roadside terminals, including switch status, dimming value, and energy consumption data. The runtime status data is time-aligned to obtain an aligned runtime status data sequence. Anomaly identification processing is performed on the running status data sequence to obtain an identified running status data sequence; Organize the identified operational status data sequences to generate data services; Based on the identification results in the operational status data sequence, data services are classified to obtain basic operational data, equipment alarm data, and emergency alarm data.

6. The dual-channel chip module and control method based on edge computing and cloud collaboration according to claim 1, characterized in that, Specifically, S4 is: The working status of the cellular public network communication chip and the wireless local area network communication chip is obtained through a unified scheduling unit. The working status includes network attachment status, synchronization status, transmission status, buffer status and abnormal interruption status. The scheduling period is divided according to the working status, and the cellular public network transmission period and wireless local area network transmission period are allocated within the scheduling period; When the cellular public network communication chip is in the transmitting state, the wireless local area network communication chip is controlled by the unified scheduling unit to enter the controlled listening state or reduce the transmitting power. When the wireless LAN communication chip is in network synchronization, critical broadcast, or routing maintenance state, the transmission start time of the cellular public network communication chip is delayed through a unified scheduling unit.

7. The dual-channel chip module and control method based on edge computing and cloud collaboration according to claim 6, characterized in that, When the cellular public network communication chip is in transmit mode, the unified scheduling unit controls the wireless local area network communication chip to enter a controlled listening state or reduce its transmit power. Specifically: When the cellular public network communication chip is in the transmitting state and the wireless local area network communication chip is not in the networking synchronization state, not in the critical broadcast state, or in the routing maintenance state, the wireless local area network communication chip can be controlled to enter the controlled listening state by the unified scheduling unit using the control line method or register configuration method. When the cellular public network communication chip is in the transmit state and the wireless local area network communication chip is in the network synchronization state, the critical broadcast state, or the route maintenance state, the transmit power of the wireless local area network communication chip can be reduced to a level lower than that in the network synchronization state by the unified scheduling unit using control line method or register configuration method.

8. The dual-channel chip module and control method based on edge computing and cloud collaboration according to claim 1, characterized in that, Specifically, S5 is: The receiver strength, latency, frame loss rate, and retransmission count of the wireless LAN communication link between the ordinary node and the agent node are obtained to determine the quality of the wireless LAN link. The moving average value is obtained by performing a moving average process on the wireless LAN link quality. The magnitude of the continuous downward trend is determined by the moving average of adjacent time periods; If the moving average meets the preset downward trend threshold and the continuous downward trend amount meets the preset downward trend threshold, then the cellular public network communication chip of the corresponding ordinary node is controlled to enter the standby state.

9. The dual-channel chip module and control method based on edge computing and cloud collaboration according to claim 1, characterized in that, Specifically, S6 is: Within the end group, obtain the link health, remaining energy storage ratio, adjacency, load factor, and historical stability of ordinary nodes; The election score information is calculated based on link health, remaining energy storage ratio, adjacency, load factor, and historical stability. Election score information is exchanged within the terminal group via wireless LAN; The election score information is compared, and the ordinary node with the highest score that meets the basic threshold is determined as the new proxy node.

10. A dual-channel chip module and control method based on edge computing and cloud collaboration according to claim 1, characterized in that, Specifically, S7 is: If the classification result is the basic operating data, the basic operating data is sent to the agent node through the wireless local area network communication chip of the ordinary node, and then sent to the cloud control platform through the cellular public network communication chip of the agent node. If the classification result is device alarm data, the device alarm data is sent to the agent node through the wireless LAN communication chip of the ordinary node, and then sent to the cloud control platform through the cellular public network communication chip of the agent node. If the classification result is emergency alarm data, then dual-link redundant reporting is performed. The emergency alarm data is sent to the associated nodes in the terminal group through the wireless LAN communication chip of the trigger node, and then sent to the cloud control platform through the agent node and the trigger node via the cellular public network communication chip.

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