Natural gas station pressure regulating and flow regulating system based on flexible bus interconnection

Abstract

The invention discloses a natural gas station pressure regulating and flow regulating system based on soft bus interconnection. Intelligent interconnection and efficient cooperation of pressure regulating and flow regulating equipment are achieved through the soft bus technology of an open-source swan Mongolia system. The system is composed of a flowmeter, a safety shut-off valve and the like and a swan adapter. The adapter is designed based on a domestic MCU (Microprogrammed Control Unit), carries a customized and developed lightweight open-source wide-gap operating system, is internally provided with a plurality of intelligent voltage-regulating and current-regulating atomization services, and can be started as required according to the characteristics of access equipment. The adapter supports a plurality of interfaces and protocols, and can quickly realize the wide-gap transformation of the equipment. A voltage-regulating and current-regulating super device body is constructed through soft bus communication of a swan mongolian operating system, intelligent interconnection and end-side interoperation are supported, and autonomous voltage regulation and current regulation of the natural gas pressure regulating station are achieved. The Internet of Things platform access is supported, remote monitoring of the system can be realized, the system integrates intelligent fault diagnosis and self-healing functions, and a built-in cryptographic algorithm chip performs encryption protection on Internet of Things communication.

Description

Technical Field

[0001] The present invention belongs to the field of application of remote intelligent monitoring technology for natural gas stations, and in particular relates to a natural gas station pressure and flow regulation system based on soft bus interconnection. Background Art

[0002] In recent years, the natural gas industry has become one of the most dynamic and fastest-growing sectors in the energy sector. In natural gas dispatch and management, pressure and flow regulation have always been key means of ensuring safe and stable natural gas transportation. With the rapid development of automation, intelligent control technologies, wireless communications, and information technology, the automation and intelligence levels of gas company operations have continued to rise. Remote pressure and flow regulation, based on SCADA systems (Supervisory Control and Data Acquisition systems), has been widely adopted and has achieved positive results. However, current remote control systems still utilize the traditional ISA95 (PLC / RTU + configuration software) architecture. This traditional industrial control architecture has a lengthy control path, requiring multiple layers of relays from sensor data acquisition to actuator action, resulting in response delays and making it difficult to meet the precise control requirements required for rapidly fluctuating natural gas flow and pressure. Risks are concentrated in the central control unit; failures there can easily paralyze the entire system. The system's autonomy is weak, and there is a lack of efficient coordination between devices, preventing direct linkage and making it difficult to adapt to complex and changing operating conditions.

[0003] With the rapid development of new technologies such as "cloud, big data, the Internet of Things, mobile computing, and artificial intelligence," the industrial sector urgently needs intelligent and autonomous control systems. The open-source Hongmeng system is gradually emerging with its advantages such as automatic discovery and networking of soft buses, low latency, and high bandwidth. Its ecosystem is constantly improving. Applying the autonomous and controllable open-source Hongmeng operating system to the industrial sector and building an autonomous and controllable industrial control ecosystem has become a new technological development trend. However, the application of the open-source Hongmeng system to address this situation remains stagnant. Summary of the Invention

[0004] In order to solve the problems of low control efficiency, poor coordination, long control path, and insufficient security in the pressure and flow regulation system of natural gas stations in the prior art, the present invention provides a natural gas station pressure and flow regulation system based on soft bus interconnection, which connects traditional pressure and flow regulation equipment with an adapter equipped with a customized lightweight version of the open source Hongmeng operating system and intelligent pressure and flow regulation atomic services, and quickly realizes the Hongmeng transformation of equipment. The system uses the soft bus communication capability of the open source Hongmeng to intelligently interconnect devices and build a pressure and flow regulation super device body, thereby realizing efficient and autonomous pressure and flow regulation at natural gas stations. At the same time, the system supports access to the Internet of Things platform, realizes remote monitoring and management through wireless communication technology, and further ensures the reliability and security of the system. The present invention comprehensively improves the intelligence level of pressure and flow regulation and system reliability in the natural gas transportation process.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A natural gas station pressure and flow regulation system based on soft bus interconnection, including a flow meter, a safety shut-off valve, a monitoring pressure regulator, an electric control valve, a pressure transmitter and a one-to-one corresponding Hongmeng adapter; the Hongmeng adapter adopts an industrial-grade domestically produced MCU chip and is equipped with a lightweight open source Hongmeng operating system that is deeply customized for the characteristics of the gas industry. It has multiple intelligent pressure and flow regulation atomic services, supports multiple interfaces and communication protocols, and realizes rapid Hongmeng transformation of equipment; with the help of soft bus communication capabilities, a pressure and flow regulation super device body is constructed to realize the autonomous pressure and flow regulation functions of the natural gas station; the Hongmeng adapter supports access to the Internet of Things cloud platform for remote management and OTA upgrades, integrates intelligent fault diagnosis and self-healing mechanisms, has a built-in national secret chip, supports multiple encryption algorithms, and ensures the security of Internet communication data.

[0007] Furthermore, the lightweight open source Hongmeng operating system performs kernel optimization for the pressure and flow regulation applications of gas stations, including real-time enhancement, low-latency communication support, and improved multi-tasking capabilities, to meet the requirements of natural gas stations for high-precision and rapid response of pressure and flow regulation.

[0008] Furthermore, the industrial-grade domestically produced MCU chip adopts a multi-core heterogeneous architecture and is equipped with a hardware acceleration module, which supports parallel processing of massive real-time tasks, can quickly respond to sensor data and control signals, and achieve ultra-efficient task scheduling and extremely low resource utilization.

[0009] Furthermore, the built-in intelligent pressure and flow regulation atomic service covers pressure monitoring module, flow control module, and valve opening control module; after deep customization and optimization, combined with intelligent algorithms and machine learning technology, it intelligently and dynamically switches the control mode according to the real-time data of the equipment, changes in operating conditions and historical experience, and realizes a variety of fine control modes such as pressure regulation, flow regulation, pressure and flow regulation, total amount, and low flow; for multiple pressure regulation lines, priority control, gradient control, and synchronous control strategies are implemented based on the intelligent decision-making mechanism to flexibly adapt to different time periods, different gas demand and complex operating conditions of natural gas stations, to ensure safe, stable and efficient gas supply.

[0010] Furthermore, it also has a rich and dynamically expandable interface configuration, including I2C interface, switch input and output interface, analog input and output interface, RS485, Modbus, supports multiple communication protocols, and has protocol adaptation and conversion functions. It can adapt to and connect various old and new equipment on site, quickly realize the Hongmeng transformation of equipment, and realize automatic configuration and parameter optimization during the device connection process.

[0011] Furthermore, the flow meter, safety shut-off valve, monitoring pressure regulator, electric control valve, and pressure transmitter are connected to the Hongmeng adapter through an interface.

[0012] Furthermore, through the open source Hongmeng's soft bus communication technology, an intelligent routing addressing optimization algorithm and a redundant backup transmission mechanism based on the integration of distributed hash tables and software-defined networks are adopted to ensure low latency and high reliability of data transmission between devices; support intelligent interconnection and end-side interoperability, and build a pressure and flow regulation super device body through a virtual bus to achieve seamless communication and efficient collaborative work between devices; for electric control valves as the core main control equipment, its built-in pressure and flow regulation atomic service generates the optimal pressure and flow regulation strategy based on real-time gas demand and equipment status, and links other devices to achieve ultra-precise and adaptive autonomous pressure and flow regulation functions; the soft bus also supports dynamic offline addition of equipment and network topology reconstruction functions to ensure that the system always maintains high availability, strong adaptability and flexible scalability.

[0013] Furthermore, the Hongmeng adapter has NB-IoT narrowband Internet of Things and 5G communication capabilities, and can access the Internet of Things cloud platform to achieve remote all-round configuration management, accurate monitoring of real-time equipment status, in-depth storage and analysis of massive data, and remote secure OTA firmware upgrade functions; the Internet of Things cloud platform has big data analysis and intelligent prediction functions. Based on the historical voltage and flow regulation data of the station and external environmental factors, it uses machine learning algorithms to predict future equipment operating status and voltage and flow regulation requirements, provide operation and maintenance decision support to achieve preventive maintenance and intelligent scheduling.

[0014] Furthermore, the Hongmeng Adapter has intelligent fault diagnosis and self-healing functions. It uses multi-sensor fusion monitoring technology and intelligent data analysis algorithms to monitor the equipment operation status in real time and in all directions. The fault diagnosis model trained based on big data automatically and accurately diagnoses the fault type, location and severity, and intelligently starts the corresponding self-healing program accordingly; if self-healing fails, the system automatically notifies the operation and maintenance personnel and provides detailed information and repair suggestions; the Hongmeng Adapter uses a continuous online learning mechanism to continuously learn through deep neural networks to improve its diagnosis and self-healing capabilities.

[0015] Furthermore, it has a built-in national encryption algorithm chip that complies with the standards of the National Cryptography Administration and supports multiple encryption algorithms, including SM2, SM3, and SM4, to achieve encrypted protection of IoT communication data and ensure the absolute security of data transmission.

[0016] The beneficial effects of the present invention compared with the prior art are:

[0017] (1) The present invention connects key devices through the Hongmeng adapter and combines soft bus technology to build a voltage and flow regulation super device body, realizing intelligent interconnection and efficient collaboration, greatly improving operating efficiency and response speed, ensuring accurate and timely voltage and flow regulation, and breaking through the limitations of poor collaboration of traditional architecture equipment.

[0018] (2) The present invention has multiple built-in intelligent voltage and flow regulation atomic service modules, supports multiple control modes, can be flexibly enabled according to actual needs, adapt to different usage scenarios and working conditions, and achieve the best control effect.

[0019] (3) The Hongmeng adapter of the present invention supports a rich set of interfaces and multiple standard communication protocols, can connect to various on-site devices, and realize rapid Hongmeng transformation of devices, which reduces the difficulty of system integration and enhances the scalability and compatibility of the system.

[0020] (4) The present invention supports access to the IoT cloud platform and has remote configuration management, device monitoring, data analysis, and OTA upgrade capabilities. A built-in national encryption chip and multiple encryption technologies form a rigorous protection system to ensure communication data security and resist network attacks. It has the ability to monitor device status in real time and intelligently diagnose faults, and can automatically initiate self-healing programs, reducing downtime, lowering operation and maintenance costs, and improving system stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a module diagram of the Hongmeng adapter involved in the present invention;

[0022] Figure 2 This is the overall structural diagram of the natural gas station pressure and flow regulation system based on soft bus interconnection of the present invention. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0024] like Figure 2As shown, a natural gas station pressure regulation and flow regulation system based on soft bus interconnection of the present invention includes a flow meter, a safety shut-off valve, a monitoring pressure regulator, an electric regulating valve, a pressure transmitter and a corresponding open source Hongmeng adapter. The flow meter, safety shut-off valve, monitoring pressure regulator, electric regulating valve and pressure transmitter are connected to a Hongmeng adapter. The Hongmeng adapters can transmit data to each other. Each device and the corresponding Hongmeng adapter together constitute a pressure regulation and flow regulation super device body. The flow meter is responsible for measuring the gas flow at the high-pressure end, and then outputs low-pressure gas at the low-pressure end through devices such as the pressure transmitter. The open source Hongmeng adapter is based on a domestically produced MCU design and is equipped with a lightweight version of the open source Hongmeng system customized and developed according to the characteristics of the gas industry. It has multiple intelligent pressure regulation and flow regulation atomic services, supports multiple interfaces and protocols, and can realize rapid Hongmeng transformation of equipment. The pressure regulation and flow regulation super device is constructed through the soft bus communication capability, which can realize autonomous pressure regulation and flow regulation of natural gas stations.

[0025] The flow meter is connected to the Hongmeng adapter via a standard RS485 or Modbus interface. The Hongmeng adapter can collect flow data in real time and share it via the soft bus.

[0026] The safety shut-off valve is connected to the Hongmeng adapter via a digital communication interface. The Hongmeng adapter can obtain the valve's switch status and control the valve's opening and closing.

[0027] The monitoring voltage regulator is connected to the Hongmeng adapter via an analog input interface. The Hongmeng adapter can collect and monitor pressure data in real time and adjust the pressure setting value.

[0028] The electric regulating valve is connected to the Hongmeng adapter via an analog input interface. The Hongmeng adapter can precisely control the valve opening of the electric regulating valve to ensure that the natural gas flow and pressure are within the set range.

[0029] The pressure transmitter is connected to the Hongmeng adapter via an RS485 interface. The adapter can collect pressure data in real time and share the data through the soft bus.

[0030] like Figure 1 As shown, the Hongmeng adapter uses industrial-grade domestically produced MCU chips such as the GD32F303CCT6 and CH32V307VCT6. The lightweight, open-source Hongmeng operating system (OS) has been optimized for voltage and flow regulation applications, including enhanced real-time performance, low-latency communication support, and improved multi-tasking capabilities to meet the high-precision and fast-response requirements of natural gas stations for voltage and flow regulation. The industrial-grade, domestically produced MCU chip utilizes a multi-core heterogeneous architecture and is equipped with a hardware acceleration module. It supports the parallel processing of massive real-time tasks, rapidly responds to sensor data and control signals, and achieves ultra-efficient task scheduling with extremely low resource utilization.

[0031] The Hongmeng adapter is equipped with a lightweight version of the open source Hongmeng operating system customized for the gas industry. This operating system is optimized for pressure and flow regulation application scenarios, and has built-in rich intelligent pressure and flow regulation atomic services, which can realize multiple control modes. The specific implementation is as follows:

[0032] The lightweight, open-source Hongmeng operating system, custom-developed for the gas industry, boasts high real-time performance and low latency. Optimized for pressure and flow regulation applications, it utilizes the open-source Hongmeng OS microkernel and a modular design, offering rapid response times, low resource utilization, and support for real-time multi-tasking. It integrates a broad library of device drivers for plug-and-play support, and utilizes a real-time operating system to support the parallel processing of multiple real-time tasks and rapidly respond to sensor data and control signals. The chip utilizes a multi-core heterogeneous architecture and is equipped with hardware acceleration modules, supporting the parallel processing of massive real-time tasks. It can rapidly respond to sensor data and control signals, achieving ultra-efficient task scheduling with extremely low resource utilization.

[0033] The Hongmeng adapter has multiple built-in intelligent voltage and flow regulation atomic services, which can be enabled on demand based on the access device. Atomic services include but are not limited to the following functions:

[0034] The pressure monitoring module can collect and monitor the pressure data in the pipeline in real time, automatically adjust the pressure setting value to ensure that the system pressure is within a safe range, and support dynamic pressure regulation;

[0035] The flow control module can adjust the opening of the electric control valve according to the real-time flow, ensuring that the flow remains within the set target range and achieving precise control;

[0036] The valve opening control module uses intelligent PID algorithm to accurately adjust the valve opening.

[0037] The Hongmeng adapter supports multiple control modes. After deep customization and optimization, combined with intelligent algorithms and machine learning technology, it can intelligently and dynamically switch control modes based on the device's real-time data, working condition changes and historical experience to flexibly adapt to different operating environments and working conditions. The control modes include:

[0038] Pressure regulation mode: suitable for maintaining stable pressure in the pipeline, adjusting the pressure setting value in real time through the pressure monitoring module to prevent overpressure or underpressure;

[0039] Flow adjustment mode: used to maintain the stability of the system flow. The flow control module automatically adjusts according to the set target flow to ensure that the flow output is within the target range;

[0040] Pressure and flow regulation combined mode: When both pressure and flow stability are required, this mode can comprehensively regulate pressure and flow to achieve a more precise control effect;

[0041] Total quantity mode: This mode automatically adjusts the flow rate and time according to the preset total quantity control target to ensure that a specified amount of natural gas is delivered within a certain period of time. It is suitable for quantitative supply scenarios.

[0042] Low flow mode: Suitable for regulation at night or under low load conditions, the system automatically switches to low flow mode to save energy and reduce system operating costs.

[0043] The Hongmeng adapter supports multiple control modes for multi-channel pressure and flow regulation lines, including: priority control, which controls the pressure and flow of key routes in a limited manner according to preset priority rules; gradient control mode, which gradually adjusts the pressure of each line to avoid the impact of sudden pressure changes on the system; and synchronous control mode, which synchronously adjusts the valve opening of multiple pressure regulation lines to ensure that the pressure and flow of all lines change synchronously.

[0044] The Hongmeng adapter has a rich and dynamically expandable interface configuration, adapting to a variety of industrial standard interfaces to meet the connection needs of different types of devices, including: I2C interface, switch input and output interface, analog input and output interface, RS485 interface, and Modbus interface.

[0045] The Hongmeng Adapter supports a variety of industry-standard communication protocols, such as Modbus, HART, NB-IoT, and 5G, as well as protocol adaptation and conversion capabilities. It can adapt to connect to a variety of old and new equipment on site, quickly realize Hongmeng transformation of equipment, and realize automatic configuration and parameter optimization during the device connection process. Flow meters, safety shut-off valves, monitoring pressure regulators, electric control valves, and pressure transmitters are connected to the Hongmeng Adapter through specific interfaces.

[0046] The open-source Hongmeng's soft bus communication technology uses an intelligent routing addressing optimization algorithm and redundant backup transmission mechanism based on the integration of distributed hash tables (DHT) and software-defined networks (SDN) to ensure low-latency and high-reliability data transmission between devices. It supports intelligent interconnection and end-to-end interoperability, and builds a pressure and flow regulation super device body through a virtual bus to achieve seamless communication and efficient collaboration between devices. With the electric control valve as the core main control device, its built-in intelligent pressure and flow regulation atomic service generates the optimal pressure and flow regulation strategy based on real-time gas demand and device status, and links other devices to achieve ultra-precise and adaptive autonomous pressure and flow regulation functions. The soft bus also supports dynamic offline device addition and network topology reconstruction functions to ensure that the system always maintains high availability, strong adaptability and flexible scalability.

[0047] The natural gas station pressure and flow regulation system can utilize the open-source Hongmeng soft bus communication technology to achieve real-time data exchange between devices, support intelligent interconnection and end-to-end interoperability, and build multiple devices into a pressure and flow regulation super device body through a virtual soft bus to realize the autonomous pressure and flow regulation functions of the natural gas pressure regulating station. The specific implementation is as follows:

[0048] Device Discovery and Networking: When the HarmonyOS adapters connected to each device are powered on, the Softbus utilizes its automatic discovery functionality to quickly search for and identify all devices on the network based on a specific network scanning mechanism and device identification algorithm. During the identification process, each device is assigned a unique device ID and network address (such as an IPv6-based address). Subsequently, an intelligent networking algorithm is used to construct an efficient communication network topology based on the functions and location of the devices.

[0049] Data transmission and collaboration: The system utilizes an intelligent routing and addressing optimization algorithm based on the integration of distributed hash tables (DHT) and software-defined networking (SDN), along with a redundant backup transmission mechanism, to ensure low latency and high reliability in data transmission between devices. When a device collects data, it is first encapsulated into a data packet that complies with the Softbus transmission protocol. This packet contains the source device address (i.e., the Device ID of a pressure transmitter), the target device address (e.g., the Device ID of a monitoring regulator or electric control valve), and the data content. The Softbus uses the DHT algorithm to quickly locate the target device within the network and, in conjunction with SDN technology, dynamically adjusts the transmission path. Furthermore, the Softbus utilizes a redundant backup transmission mechanism, establishing a backup path in addition to the primary transmission path. If a problem occurs on the primary path, data automatically switches to the backup path, ensuring continuous data transmission.

[0050] By constructing a virtual bus Figure 2 The voltage and flow regulating super device shown in the figure realizes seamless communication and efficient collaborative work among devices.

[0051] The Hongmeng adapter has NB-IoT narrowband Internet of Things and 5G communication capabilities, and can access the IoT cloud platform to achieve remote and comprehensive configuration management, accurate real-time monitoring of equipment status, in-depth storage and analysis of massive data, and remote and secure firmware upgrades. The cloud platform has big data analysis and intelligent prediction capabilities. It can use machine learning algorithms to predict future equipment operating status and voltage and flow regulation needs based on the station's historical voltage and flow regulation data and external environmental factors, providing operation and maintenance decision support for preventive maintenance and intelligent scheduling. The specific implementation is as follows:

[0052] Remote Configuration Management: Users can configure the adapter's operating parameters, such as communication parameters, voltage and flow regulation strategies, and device operating modes, through the cloud platform's management interface. After the configuration is changed, the cloud platform sends the new configuration to the adapter via the NB-IoT or 5G network, and the adapter immediately applies the new configuration. The adapter provides real-time feedback on the configuration application status, such as whether the configuration was successful and whether the device is functioning properly, and uploads the feedback results to the cloud platform.

[0053] Equipment status monitoring: Through the visual monitoring interface provided by the IoT cloud platform, users can view the real-time status of all connected devices, including key parameters such as flow, pressure, valve opening, and equipment temperature. Users can also issue real-time warnings and handle abnormal conditions.

[0054] Historical data storage and analysis: The IoT cloud platform stores data uploaded by devices over the long term, allowing users to access historical data for trend analysis and fault diagnosis. Leveraging cloud computing power for data analysis, in-depth mining of historical device data facilitates system optimization and predictive maintenance.

[0055] Remote OTA firmware upgrade: The new firmware is encrypted and sent to the target adapter via the IoT cloud platform. After receiving the firmware, the adapter completes verification, decompression, and installation. During the firmware upgrade, the adapter provides real-time feedback on the upgrade progress, which can be displayed on the cloud platform.

[0056] Big Data Analysis and Prediction: The IoT cloud platform continuously collects data from various Hongmeng adapters and related devices in the natural gas station's pressure and flow regulation system through secure network communication protocols. Data is formatted uniformly and standardized, and cleaned and denoised. Valuable features are extracted from the preprocessed data to reduce data dimensionality and improve the training efficiency and accuracy of the prediction model. Based on the data characteristics and prediction objectives, appropriate machine learning algorithms (such as CNN, LSTM, and Transformer) are selected to build a prediction model. The model's predictive performance is quantitatively evaluated using multiple evaluation metrics. Based on the evaluation results, if the model performance falls short of expectations, further optimization is performed. The model's predicted future equipment operating status and pressure and flow regulation requirements are visualized. Charts and curves are used to visually display pressure and flow rate trends over time, as well as equipment operating conditions under the influence of various environmental factors. Operations and maintenance personnel can easily view and analyze the prediction results through a visual interface, understanding the station's future operational status and providing an intuitive basis for formulating operations and maintenance strategies. The system uses preset rules and expert knowledge to generate operation and maintenance decision suggestions and informs the station operation and maintenance personnel to help them take measures in advance, realize preventive maintenance and intelligent scheduling, and effectively ensure the safe and stable operation of natural gas stations.

[0057] The Hongmeng adapter features intelligent fault diagnosis and self-healing capabilities. It utilizes multi-sensor fusion monitoring technology and intelligent data analysis algorithms to monitor the device's operating status in real time and comprehensively. A fault diagnosis model trained on big data automatically and accurately diagnoses the fault type, location, and severity, and intelligently initiates the appropriate self-healing process accordingly. If self-healing fails, the system automatically notifies maintenance personnel and provides detailed information and repair recommendations. The Hongmeng system leverages a continuous online learning mechanism, using deep neural networks to continuously improve its diagnostic and self-healing capabilities.

[0058] The multiple sensors built into the Hongmeng adapter, such as temperature sensors, pressure sensors, flow sensors, etc., can collect the key operating parameters of the equipment in real time. At the same time, the Hongmeng adapter uses intelligent data analysis algorithms to analyze and process the collected data in real time, and automatically and accurately diagnoses the fault type, location and severity based on the fault diagnosis model trained with big data. After diagnosing the fault, the corresponding self-healing program is started. For some minor faults, such as sensor data drift, temporary interruption of the communication link, etc., the Hongmeng system can automatically calibrate and repair, and restore the normal operation of the equipment without human intervention. If self-healing fails, the Hongmeng system automatically notifies the operation and maintenance personnel and provides detailed fault information, fault analysis reports and professional recommended repair measures. Based on the information provided by the system, the operation and maintenance personnel can quickly locate the faulty equipment and the cause of the fault, and take corresponding repair measures, which greatly shortens the fault handling time and reduces the operation and maintenance costs. At the same time. With the help of a continuous online learning mechanism, the Hongmeng adapter continuously learns the new operating mode, fault characteristics and repair cases of the equipment through deep neural networks, continuously improving the accuracy, timeliness and success rate of fault diagnosis, ensuring that the system maintains high reliability and high stability in the long term.

[0059] The Hongmeng adapter has a built-in national encryption algorithm chip that complies with the standards of the State Cryptography Administration. It supports multiple encryption algorithms, including SM2, SM3, and SM4. This can encrypt IoT communication data, ensure the absolute security of data transmission, and provide comprehensive encryption protection for communication data between the Hongmeng adapter and the IoT cloud platform. Before data transmission, the adapter first encrypts the data using the SM4 algorithm and the key using the SM2 algorithm, and then sends the encrypted data and key to the cloud platform. After receiving the data packet, the cloud platform first decrypts the SM4 encryption key with the SM2 public key, and then decrypts the data with the SM4 key, realizing encrypted transmission of Internet communication data and ensuring data security.

[0060] In summary, the present invention can solve the problems of poor equipment interconnectivity, low collaboration efficiency, long control paths, weak system autonomy, and insufficient security in the natural gas pressure and flow regulation system. It can realize autonomous pressure and flow regulation, and significantly improve the automation and intelligence level of the system.

[0061] Any matters not described in detail in this specification are prior art known to those skilled in the art. The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A natural gas station pressure and flow regulation system based on soft bus interconnection, characterized in that: It includes flow meters, safety shut-off valves, monitoring pressure regulators, electric control valves, pressure transmitters and one-to-one corresponding Hongmeng adapters; the Hongmeng adapter adopts industrial-grade domestically produced MCU chips and is equipped with a lightweight open source Hongmeng operating system that is deeply customized for the characteristics of the gas industry. It has multiple intelligent pressure and flow regulation atomic services, supports multiple interfaces and communication protocols, and realizes rapid Hongmeng transformation of equipment; with the help of soft bus communication capabilities, a pressure and flow regulation super equipment body is built to realize the autonomous pressure and flow regulation functions of natural gas stations; the Hongmeng adapter supports access to the IoT cloud platform for remote management and OTA upgrades, integrates intelligent fault diagnosis and self-healing mechanisms, has a built-in national secret chip, supports multiple encryption algorithms, and ensures the security of Internet communication data.

2. A natural gas station pressure and flow regulation system based on soft bus interconnection according to claim 1, characterized in that: The lightweight open source Hongmeng operating system performs kernel optimization for the pressure and flow regulation applications of gas stations, including real-time enhancement, low-latency communication support and improved multi-tasking capabilities, to meet the requirements of natural gas stations for high-precision and rapid response of pressure and flow regulation.

3. A natural gas station pressure and flow regulation system based on soft bus interconnection according to claim 1, characterized in that: The industrial-grade domestically produced MCU chip adopts a multi-core heterogeneous architecture and is equipped with a hardware acceleration module. It supports parallel processing of massive real-time tasks, can quickly respond to sensor data and control signals, and achieve ultra-efficient task scheduling and extremely low resource utilization.

4. A natural gas station pressure and flow regulation system based on soft bus interconnection according to claim 1, characterized in that: The built-in intelligent pressure and flow regulation atomic service covers pressure monitoring module, flow control module, and valve opening control module; after deep customization and optimization, combined with intelligent algorithms and machine learning technology, it intelligently and dynamically switches the control mode according to the real-time data of the equipment, changes in operating conditions and historical experience, and realizes a variety of fine control modes such as pressure regulation, flow regulation, pressure and flow regulation, total amount, and low flow; for multiple pressure regulation lines, priority control, gradient control, and synchronous control strategies are implemented based on the intelligent decision-making mechanism to flexibly adapt to different time periods, different gas demand and complex operating conditions of natural gas stations, to ensure safe, stable and efficient gas supply.

5. A natural gas station pressure and flow regulation system based on soft bus interconnection according to claim 1, characterized in that: It also has a rich and dynamically expandable interface configuration, including I2C interface, switch input and output interface, analog input and output interface, RS485, Modbus, supports multiple communication protocols, and has protocol adaptation and conversion functions. It can adapt to and connect various old and new equipment on site, quickly realize the Hongmeng transformation of equipment, and realize automatic configuration and parameter optimization during the device connection process.

6. A natural gas station pressure and flow regulation system based on soft bus interconnection according to claim 5, characterized in that: The flow meter, safety shut-off valve, monitoring pressure regulator, electric control valve, and pressure transmitter are connected to the Hongmeng adapter through the interface.

7. A natural gas station pressure and flow regulation system based on soft bus interconnection according to claim 1, characterized in that: Through the open source Hongmeng soft bus communication technology, an intelligent routing addressing optimization algorithm and a redundant backup transmission mechanism based on the integration of distributed hash tables and software-defined networks are adopted to ensure low latency and high reliability of data transmission between devices; support intelligent interconnection and end-side interoperability, and build a pressure and flow regulation super device body through a virtual bus to achieve seamless communication and efficient collaborative work between devices; for electric control valves as the core main control equipment, its built-in pressure and flow regulation atomic service generates the optimal pressure and flow regulation strategy based on real-time gas demand and equipment status, and links other equipment to achieve ultra-precise and adaptive autonomous pressure and flow regulation functions; the soft bus also supports dynamic offline addition of equipment and network topology reconstruction functions to ensure that the system always maintains high availability, strong adaptability and flexible scalability.

8. The natural gas station pressure and flow regulation system based on soft bus interconnection according to claim 1 is characterized in that: The Hongmeng adapter has NB-IoT narrowband Internet of Things and 5G communication capabilities, and can access the IoT cloud platform to achieve remote and comprehensive configuration management, accurate real-time monitoring of equipment status, in-depth storage and analysis of massive data, and remote and secure OTA firmware upgrades; the IoT cloud platform has big data analysis and intelligent prediction capabilities. Based on the historical voltage and flow regulation data of the station and external environmental factors, it uses machine learning algorithms to predict future equipment operating status and voltage and flow regulation requirements, providing operation and maintenance decision support to achieve preventive maintenance and intelligent scheduling.

9. A natural gas station pressure and flow regulation system based on soft bus interconnection according to claim 1, characterized in that: The Hongmeng Adapter has intelligent fault diagnosis and self-healing functions. It uses multi-sensor fusion monitoring technology and intelligent data analysis algorithms to monitor the equipment's operating status in real time and in all directions. The fault diagnosis model trained based on big data automatically and accurately diagnoses the fault type, location and severity, and intelligently starts the corresponding self-healing program accordingly; if self-healing fails, the system automatically notifies the operation and maintenance personnel and provides detailed information and repair suggestions; the Hongmeng Adapter uses a continuous online learning mechanism to continuously learn through deep neural networks to improve its diagnosis and self-healing capabilities.

10. A natural gas station pressure and flow regulation system based on soft bus interconnection according to claim 1, characterized in that: It has a built-in national encryption algorithm chip that complies with the standards of the National Cryptography Administration and supports multiple encryption algorithms, including SM2, SM3, and SM4, to achieve encrypted protection of IoT communication data and ensure the absolute security of data transmission.

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