Explosion-proof soft bus adapter based on open source gap

Abstract

The invention discloses an explosion-proof soft bus adapter based on an open source gap, which adopts an industrial-grade domestic chip, a multifunctional interface and a hardware national secret security chip, and is configured with a strict explosion-proof and explosion-proof design. According to the invention, a deeply-customized lightweight open source gap is taken as a core, a distributed soft bus technology is fully utilized, a plurality of adapters and connected equipment are fused into a super equipment body, and seamless collaboration and resource sharing among the equipment are realized. On-site intelligent decision making and autonomous closed-loop control are carried out through edge calculation, a machine learning model and an industry atomization service which are embedded in the system and an enabling adapter. The invention aims to quickly realize the wide-gap and intelligent access of the traditional instrument equipment, so that the safety, autonomous capability and intelligent level of the gas field station are remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of remote monitoring of natural gas stations, and specifically relates to an explosion-proof soft bus adapter based on open source Hongmeng, which is used in intelligent monitoring and control systems in the natural gas industry. Background Art

[0002] With the ongoing modernization of cities, the city gas industry is experiencing rapid development. Gas demand continues to grow. To enhance the safety and control efficiency of town gas production, operation, transmission, distribution, and dispatch, most town gas companies have established remote monitoring systems. However, existing remote monitoring systems still have significant technical and application deficiencies and risks.

[0003] Most existing remote monitoring systems are based on the traditional ISA95 architecture (PLC / RTU + configuration software). This architecture has long control paths, resulting in concentrated risks and slow response times. It also lacks direct linkage between devices and collaboration between multiple systems, resulting in weak station autonomy and difficulty meeting the growing safety and operation management needs of gas companies.

[0004] With the rapid development of new technologies such as "cloud, big data, the Internet of Things, mobile computing, and artificial intelligence," and the continuous improvement of the open-source HarmonyOS ecosystem, applying the proprietary and controllable open-source HarmonyOS operating system to the industrial sector and building a proprietary and controllable industrial control ecosystem has become a technological trend. However, how to apply HarmonyOS to intelligent monitoring and control systems in the natural gas industry remains a pressing challenge. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an explosion-proof soft bus adapter based on open source Hongmeng, which aims to comprehensively improve the security and autonomy of the remote monitoring system of natural gas stations. The present invention uses Hongmeng OS as its technical support and fully utilizes its core advantages in distributed collaboration, high real-time task scheduling and native security. By building an architecture with end-side distributed deployment, intelligent interconnection, and end-side interoperability, seamless interconnection, resource sharing and collaborative work between devices are achieved, thereby improving the autonomous security management and control capabilities and achieving autonomous decision-making and collaborative cooperation between devices. The hardware adopts industrial-grade domestic chips and strict explosion-proof design, combined with the Hongmeng system, which can significantly improve the safety, autonomy and intelligence level of natural gas stations in production, operation, transmission and distribution, scheduling, etc., reduce dependence on foreign technology, and enhance the autonomous controllable capabilities of the system. In addition, the present invention deeply integrates the open ecology of the Hongmeng system, uses the atomic service characteristics to quickly develop and deploy targeted intelligent applications, and provides the system with continuous technical upgrades and functional optimization capabilities.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An explosion-proof soft bus adapter based on open source Hongmeng, designed with industrial-grade domestic MCU chips, has multiple peripheral interfaces, including 1 analog input, 1 analog output, 4 digital inputs, 2 digital outputs, 1 2.4GHz / 5.8GHz WiFi module with automatic frequency switching, 1 low-power Bluetooth module BLE, 1 NFC module, 1 RS485 / RS232 composite port that supports multiple protocols and adaptive transmission rates, and 1 adaptive Gigabit Ethernet port; built-in hardware national secret security chip, supports national secret algorithms, and realizes encrypted storage and transmission of sensitive data; the overall explosion-proof design is adopted, including multi-layer explosion-proof design and intrinsically safe design of the interface; built-in lightweight version of the open source Hongmeng operating system customized and developed according to the characteristics of the gas industry and optimized for the adapter hardware, equipped with intelligent applications and atomic services for the gas industry, integrated edge computing and machine learning models, and using Hongmeng The distributed soft bus, task scheduling, and resource management features of the Hongmeng system support data analysis, predictive maintenance, and intelligent decision-making, and ensure multi-tasking, data real-time, and efficient collaboration between devices; it has the Hongmeng OS soft bus communication capability, which can achieve seamless resource sharing, autonomous discovery, self-organizing networking, and task allocation between devices, and quickly realize terminal-side autonomous closed-loop control through the super device body, support distributed data sharing and collaborative control, and realize the Hongmeng and intelligent access of traditional instruments and equipment, meeting the natural gas station's demand for high real-time, distributed, and safe intelligent control, and improving the safety, autonomy, and intelligence level of the gas station.

[0008] Furthermore, the adapter's multi-layer flameproof design includes a double-sealed outer shell, internal fireproof materials and a self-detecting temperature sensor to ensure its safe operation in extreme environments.

[0009] Furthermore, the intrinsically safe design of the adapter includes circuit restrictions on all external interfaces and power output modules. Through current limiting resistors, protection resistors, voltage stabilization circuits and Zener diodes, the current and voltage are limited to a safe range to prevent sparks or arcs.

[0010] Furthermore, the adapter's built-in hardware national security chip supports SM2, SM3, SM4, SM9 national standard cryptographic algorithms and AES, DES, 3DES, SHA series, and RSA, and has a 64K file and key security storage area to prevent physical cracking and attacks. The Hongmeng system, through deep integration with the chip, uses hardware acceleration functions and system security mechanisms to achieve efficient and reliable data encryption and decryption, ensuring the security of data and instructions in IoT communications.

[0011] Furthermore, the adapter's lightweight version of the open source Hongmeng operating system has enhanced features for the gas industry, supporting real-time multi-tasking, gas industry-specific intelligent applications, edge computing and machine learning model operations. The Hongmeng system ensures efficient operation of edge computing and machine learning through optimized scheduling mechanisms and resource management, and realizes intelligent decision-making for complex working conditions such as autonomous pressure and flow regulation, pipe burst monitoring and control, autonomous odorization functions and equipment health management.

[0012] Furthermore, the adapter's HarmonyOS soft bus communication capability supports 2.4GHz and 5.8GHz dual-band wireless communications, and can automatically switch to the optimal frequency band according to actual business needs and on-site wireless environment conditions. With the help of the distributed capabilities of the Harmony system, it can further provide higher bandwidth, more stable connections and low-latency services, reduce signal interference, and improve the reliability of data transmission.

[0013] Furthermore, the adapter's Hongmeng OS soft bus communication capability can realize self-discovery and self-organizing networking between devices, support the construction of distributed super-device bodies between multiple adapters, with a maximum of 20 super-device bodies, and achieve ultra-low latency data and command transmission through the soft bus, enabling collaborative work between devices and meeting the needs of multi-device interconnection and collaboration at the site and real-time task scheduling.

[0014] Furthermore, the IoT platform security access module of the adapter can quickly realize the HarmonyOS and intelligentization of traditional instrument equipment in natural gas stations, realize distributed data collection, storage and upload of instrument equipment, and realize automatic data docking, rapid application deployment and function expansion through the atomic service of the HarmonyOS system ecosystem. In conjunction with the built-in hardware national security chip, it can realize the full process security protection of data and information in IoT communications.

[0015] Furthermore, the adapter's industrial-grade domestically produced MCU chip is a high-performance multi-core heterogeneous processing chip that integrates the Cortex-M33 Star real-time control core and the Cortex-A7 application processing core. It has powerful computing power and rich on-chip resources. After deep adaptation and optimization of the characteristics of the Hongmeng system, it supports large-scale data processing and multi-task collaboration, providing performance guarantees for complex applications in natural gas stations.

[0016] Furthermore, the overall explosion-proof mark of the adapter is Ex db [ia] II B T4 Gb, which complies with relevant explosion-proof standards and is suitable for natural gas stations where explosion risks may exist, ensuring the safe operation of on-site equipment and data.

[0017] The beneficial effects of the present invention compared with the prior art are:

[0018] (1) The present invention improves the degree of autonomy and security protection level of key hardware: The present invention adopts a domestically produced core processor and a hardware-level national secret security module, and integrates customized explosion-proof components, reducing technical dependence from the source and ensuring supply chain security. More importantly, the Hongmeng system deeply collaborates with the hardware national secret chip through its built-in security mechanism, and uses hardware acceleration functions to achieve efficient and reliable data encryption and decryption operations, building a complete security chain from hardware to system and then to transmission protocol. Combined with the explosion-proof housing design, it ensures the continuous and reliable operation of the system in extreme environments.

[0019] (2) The present invention uses the open source Hongmeng OS to implement the adapter function and implements deep adaptation in combination with the needs of the gas industry. This design gives the adapter powerful edge intelligence capabilities. Specifically, the Hongmeng system, through its optimized task scheduling mechanism and resource management capabilities, provides guarantees for the efficient operation of edge computing and machine learning models, enabling it to work in conjunction with the data acquisition module to achieve rapid processing of field data, pre-judgment of working conditions, and immediate execution of intelligent decisions. At the same time, by utilizing Hongmeng's atomic service characteristics, gas industry-specific intelligent applications such as equipment health assessment and intelligent pressure regulation can be quickly developed and deployed. Compared with the traditional centralized control architecture, it not only accelerates system feedback, but also improves control accuracy and management efficiency.

[0020] (3) The present invention uses distributed soft bus technology to strengthen the work coordination and data interaction between devices. With the help of the distributed soft bus mechanism of open source Hongmeng, an extensible device interconnection and coordination mode is formed. Specifically, the soft bus can be used to efficiently share data, synchronously issue control instructions, and coordinate the allocation of computing tasks between devices. Based on dual-frequency communication and the "super device" mechanism, plug-and-play, autonomous networking, and ultra-low latency data transmission are achieved. With the help of device virtualization technology, multiple adapters and terminal devices can be integrated into a "super device body" to provide support for complex end-side collaborative control and data processing. For example, in the application case of a natural gas transmission and distribution station, by deploying the adapter of the present invention, efficient collaborative linkage and data security protection of key equipment such as pressure regulators and flow meters were achieved, which increased the overall operation efficiency of the station by 20% and the fault warning accuracy rate reached more than 95%, intuitively demonstrating the practical application value of the present invention in improving the intelligence and safety of the station. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural block diagram of an explosion-proof soft bus adapter based on open source Hongmeng of the present invention;

[0022] Figure 2 This is a diagram showing the connection relationship of the distributed soft bus of the super device in 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 1 As shown, the present invention provides an explosion-proof soft bus adapter based on open source Hongmeng, which adopts an industrial-grade domestically produced MCU chip design, an explosion-proof design, a built-in lightweight version of the open source Hongmeng operating system customized and developed according to industry characteristics, and is equipped with intelligent applications and atomic services for the gas industry, and has built-in edge computing and machine learning models. Through the Hongmeng OS distributed soft bus, a super device body can be built, and devices can be interconnected and work together to achieve autonomous decision-making on the end side, breaking the barriers of traditional point-to-point communication between devices and forming a more dynamic and flexible device Internet network. Under this framework, the data and functions of different devices have the potential to be shared and collaboratively called on demand. The built-in national secret chip realizes the protection of data and information security in Internet of Things communications. Through the application of the present invention, the security, autonomy and intelligence level of natural gas stations will be significantly improved.

[0025] This invention uses a deeply customized lightweight version of the open source Hongmeng as its core, fully utilizing its distributed soft bus technology to integrate multiple adapters and connected devices into a "super device body" to achieve seamless collaboration and resource sharing between devices. Through the system's embedded edge computing, machine learning models, and industry atomic services, the adapter is enabled to perform on-site intelligent decision-making and autonomous closed-loop control. The explosion-proof soft bus adapter based on the open source Hongmeng includes:

[0026] 1. Industrial-grade domestically produced chips:

[0027] This invention utilizes high-performance, domestically produced, multi-core heterogeneous processing chips designed specifically for harsh industrial environments. For example, ICs integrating the Cortex-M33 Star real-time control core and the Cortex-A7 application processing core eliminate dependence on foreign chips, ensuring the inherent safety and supply chain resilience of national critical infrastructure. Furthermore, with its powerful computing power, abundant on-chip resources (such as large-capacity RAM and Flash), and natively optimized support for the open-source Hongmeng operating system, it provides a high-performance computing foundation for implementing complex edge intelligence algorithms, device collaboration, and distributed applications. The rich I / O interfaces (including but not limited to analog and digital input and output channels) and diverse communication modules (such as adaptive dual-band WiFi, Bluetooth Low Energy (BLE), NFC near-field communication, a multi-protocol industrial serial bus, and a high-speed Ethernet interface) integrated into these industrial-grade, domestically produced chips create a highly flexible and scalable ubiquitous connectivity capability, laying the hardware foundation for subsequent soft bus construction and intelligent upgrades.

[0028] 2. Built-in national secret chip:

[0029] This invention integrates a hardware security module (HSM) supporting national cryptographic algorithms (NSMA) into the adapter. This module (e.g., using a hardware-accelerated NSMA chip supporting national standard cryptographic algorithms such as SM2 / 3 / 4) provides encryption and integrity verification for device authentication, data transmission, and control instructions, helping to protect against common network attacks such as data tampering, theft, and unauthorized access. This design encrypts the storage and transmission of sensitive data, protects communication security between IoT devices, and ensures the reliability of control instructions, providing end-to-end security protection for the adapter.

[0030] The national encryption chip can encrypt the storage and transmission of data and instructions. The specific implementation is as follows:

[0031] (1) Data encryption storage: When the adapter collects data from various sensors and devices, it is first encrypted by the built-in national encryption chip. The national encryption chip supports national standard cryptographic algorithms such as SM2, SM3, SM4, and SM9, and international algorithms such as AES, DES, 3DES, SHA series, and RSA. It supports two cryptographic systems: KPI and identification cryptography (IBC). It has a 64K file and key security storage area inside to prevent physical cracking and attacks, and realize the encryption of sensitive data. The chip application interface complies with ISO / IEC 7816-4 and SPI specifications, and has the characteristics of standardization, high performance, security, and ease of use. The encrypted data is stored in the internal memory of the adapter to prevent malicious tampering or unauthorized access, ensuring that it will not be tampered with or leaked during the storage process.

[0032] (2) Data and instruction encryption transmission: During the instruction and data transmission process, the adapter will use the national encryption chip to encrypt again to ensure the security of sensitive data during transmission. The key generated by the national encryption chip is used to encrypt data and control instructions and is stored in the key security storage area to prevent physical cracking and attacks. The receiving end will use the same decryption algorithm to decrypt the data to ensure data integrity and security.

[0033] 3. Explosion-proof module:

[0034] For environments with potential explosion risks, such as natural gas stations, the adapter of the present invention adopts a structural design that complies with relevant explosion-proof standards (such as Ex db [ia] II B T4 Gb). It includes physical explosion-proof measures (such as multi-layer explosion-proof enclosures and sealing designs) as well as intrinsically safe circuit designs for external interfaces (such as serial ports and power outputs) to reduce the risk of fire caused by electrical faults. In addition, the design also considers the use of integrated sensors (such as temperature sensors) to self-detect the status of the equipment. This information can be analyzed by the system and provide data support for the early identification of potential risks. This idea of ​​combining traditional explosion-proof design with equipment status monitoring is intended to improve the equipment's safe operation capabilities under harsh working conditions and the overall protection level of the system.

[0035] The adapter features a multi-layer explosion-proof design, including a double-sealed housing, internal fireproof materials, and a self-detecting temperature sensor to ensure safe operation in extreme environments.

[0036] In natural gas stations, heat, sparks, and arcs generated by electric current are the primary ignition sources for explosive gas explosions. Therefore, all external interfaces (such as I / O and communication ports) and power output modules of the adapter adopt an intrinsically safe design. This means limiting the circuit's electrical parameters and implementing certain protective measures to mitigate the thermal effects of electric current, sparks, and electrode discharge energy. This ensures that, regardless of whether the system is operating normally or in a fault state, the resulting thermal effects and sparks cannot ignite the explosive gas mixture. When designing the circuit, special attention is paid to energy storage components such as inductors and capacitors. Current-limiting and protective resistors, as well as voltage-stabilizing circuits and Zener diodes, are used to limit current and voltage to safe ranges and prevent sparks or arcs.

[0037] 4. Built-in lightweight open source Hongmeng operating system:

[0038] The adapter is equipped with a lightweight, open-source Hongmeng operating system customized for the industry. This operating system has enhanced features for the gas industry, is equipped with intelligent applications for the gas industry, and integrates edge computing and machine learning models to support real-time data analysis, predictive maintenance, and intelligent decision-making. Key features include:

[0039] (1) Supports real-time multi-tasking and can efficiently manage and coordinate the data collection and processing tasks of various sensors and control equipment within the station.

[0040] (2) It has built-in intelligent applications for the gas industry, including autonomous pressure and flow regulation, pipe burst detection and control, autonomous odorization, and autonomous emergency shutdown.

[0041] (3) Integrating advanced edge computing and machine learning models, it can realize data edge preprocessing, anomaly detection and predictive analysis, and support real-time data analysis, predictive maintenance and intelligent decision-making.

[0042] Specifically, the adapter has a built-in lightweight open source Hongmeng operating system customized and developed for the gas industry. The operating system runs on the domestically produced MCU chip BES2600. The operating system is capable of processing multiple tasks in real time and can run data processing algorithms, including data filtering, anomaly detection and predictive analysis. It can perform edge computing and is equipped with a machine learning module to assist in intelligent decision-making. An important feature of the system is the integration of specific functional modules and algorithm components for the gas industry (for example, models or services related to leak detection, pressure flow analysis, and equipment status monitoring). These preset industry knowledge and processing capabilities help the adapter perform intelligent tasks more effectively in the target application. The specific implementation is as follows:

[0043] The lightweight, open-source HarmonyOS operating system, customized for the gas industry, features enhanced features for the gas industry, optimizing system performance and resource utilization to meet the unique needs and complex environments of natural gas stations, ensuring efficient, stable, and secure operation within the gas industry. Open-source HarmonyOS supports the development of lightweight systems (mini systems) for MCU-based processors such as Arm Cortex-M and RISC-V 32-bit devices. Based on the LiteOS kernel, it enables the independent development of specialized systems with specific functions. It supports real-time multitasking, efficiently managing and coordinating data collection and processing tasks for sensors and control devices within the station. The lightweight system design ensures low-latency response for critical tasks, meeting the real-time requirements of station monitoring and control.

[0044] It supports edge computing and integrates advanced data processing algorithms, including data filtering, anomaly detection, and predictive analysis. Specifically, it uses a weighted moving average filtering algorithm to smooth sensor data and reduce noise interference. For anomaly detection, a neural network model can be trained based on historical data to identify and issue warnings. For predictive analysis, it can be combined with a machine learning time series analysis model and trained using historical data to predict future gas usage trends and equipment status, supporting intelligent decision-making.

[0045] Autonomous pressure and flow regulation: The pressure transmitter, flow meter, and electric control valve are connected to the adapter via the I / O interface. The adapter collects real-time data from the pressure transmitter and flow meter to obtain the current outlet pressure and flow values. The collected data is preprocessed using the data processing algorithm module in the open source Hongmeng operating system. The required control valve opening is calculated based on the real-time pressure and flow data. Control instructions are sent to the electric control valve through the digital output port to adjust the valve opening to the desired value. A closed-loop feedback control algorithm is designed to achieve autonomous pressure and flow regulation, stabilizing the outlet pressure and flow near the desired values.

[0046] Pipe burst monitoring and control: The adapter uses an anomaly detection algorithm from the open-source Hongmeng system to analyze pressure and flow data in real time, detecting any abnormal fluctuations and providing early warning of a possible pipe burst. Upon detecting a pipe burst risk, the adapter immediately sends a control command to the electric on / off valve, rapidly closing it and cutting off the gas supply.

[0047] Autonomous odorization: The adapter uses a flow meter to measure gas flow and calculates the required odorization amount based on this flow in the open-source Hongmeng system. The adapter then sends control commands to the odorization system via a digital output port, adjusting the operating state of the odorization equipment to match the amount of odorant added to the flow rate.

[0048] 5. Hongmeng OS soft bus communication module:

[0049] This module implements the soft bus communication capability of Hongmeng OS. This capability enables the adapter to achieve efficient and reliable dual-band wireless communication between devices and supports the construction of a distributed super device body between multiple adapters. It mainly includes the following functions:

[0050] (1) Supports 2.4GHz and 5.8GHz dual-band wireless communications, and can switch to the optimal frequency band as needed, thereby providing larger bandwidth and more stable connection, reducing signal interference and improving data transmission reliability.

[0051] (2) Relying on the distributed soft bus technology of Hongmeng OS, virtual bus connections can be easily established between multiple devices, supporting self-discovery and self-organizing networks between end nodes, realizing rapid transmission of data and instructions and collaborative work of devices.

[0052] Data sharing and task collaboration: For example, adapter A, connected to a pressure transmitter, can broadcast its collected real-time pressure data via a soft bus to all members of the "super-device body." Adapter B, connected to a regulating valve, receives this data and its built-in pressure regulation model immediately performs calculations and coordinates with adapter A to adjust the pressure. This enables distributed processing of computing tasks and collaborative decision-making among devices.

[0053] State synchronization and coordinated control: In a pipe burst monitoring scenario, when adapter C detects a flow anomaly, it immediately issues an "emergency shutdown" command via the soft bus. All adapters controlling valves within the same "super-device" receive this command simultaneously and immediately close the valves, enabling a rapid, multi-point, synchronized response. This is far faster and more reliable than the traditional method of escalating reporting and centrally issuing commands.

[0054] (3) Through the soft bus architecture, users can network multiple adapters and their connected devices according to application requirements to build a super device body. The super device body can realize complex control and data processing functions, and the number can reach up to 20. For example, in the application case of a natural gas transmission and distribution station, by deploying the adapter of the present invention, the upstream pressure regulator, downstream flow meter and thermometer and other devices are connected to different adapters to form a super device body, realizing the coordinated control of flow compensation and precise pressure regulation, which not only improves the gas supply accuracy, but also realizes the joint assessment of the health status of the equipment in the entire station control area through data sharing, significantly improving the operation efficiency and safety of the station.

[0055] Specifically, the adapter supports distributed soft bus communication capabilities, can achieve dual-frequency communication and super device body construction, the super device distributed soft bus connection relationship diagram is as follows Figure 2 As shown, the specific implementation is as follows:

[0056] The adapter has built-in HarmonyOS's distributed soft bus communication protocol and possesses soft bus communication capabilities. It establishes a virtual bus connection between each adapter and device via WiFi, Bluetooth, and NFC, enabling efficient data sharing and command transmission between devices. The adapter supports 2.4GHz and 5.8GHz dual-band wireless communication, providing greater bandwidth and more stable connections, reducing signal interference, and improving data transmission reliability. In complex industrial environments, dual-band communication can select the optimal frequency band required based on actual conditions, ensuring stable and continuous data transmission. Relying on soft bus technology, virtual bus connections can be easily established between multiple devices, enabling rapid data and command transmission and device collaboration. Each adapter can act as an independent node in the soft bus architecture, networking with other nodes via the soft bus as needed to achieve self-discovery and self-organizing networking.

[0057] The soft bus can connect multiple adapters and devices into a super device body, with the number of super device bodies reaching up to 20. Multiple devices can work together to achieve more complex control and data processing functions. Figure 2This system includes super-concentration detection and alarm equipment consisting of a concentration alarm host, chromatograph, concentration transmitter, trace moisture analyzer, and hydrogen sulfide analyzer; super-pressure and flow control equipment consisting of a pressure transmitter, flowmeter, gas-liquid linkage valve, flow calculator, and odorization system; super-temperature and liquid level monitoring equipment consisting of an electric control valve, temperature transmitter, liquid level alarm, and UPS host; and super-safety control equipment consisting of an electric on / off valve, shut-off valve, pneumatic linkage valve, and manual valve. Taking remote pressure regulation control as an example, a natural gas station remote pressure regulation system typically involves three instruments: an electric control valve, an outlet pressure transmitter, and a flowmeter. Control of outlet pressure and flow is achieved by adjusting the opening of the control valve. These super-pressure and flow control equipment and super-safety control equipment are linked via a soft bus to form a super-device body. The valve, with the valve as the primary control device, receives pressure and flow data from the pressure transmitter and flowmeter via the soft bus to implement pressure regulation, stabilizing outlet pressure and flow near desired values ​​and achieving end-side autonomy for the super-device body. By building a super device body, the overall system intelligence level and response speed can be improved.

[0058] 6. IoT platform security access module:

[0059] This module implements a rich set of interfaces and intelligent industry applications, enabling rapid integration and intelligentization of traditional natural gas station instrumentation, enabling distributed data collection, storage, and upload. The adapter supports IoT platform access and, through a built-in hardware security chip, securely protects data and information in IoT communications.

[0060] To sum up, the explosion-proof soft bus adapter designed by the present invention based on the open source Hongmeng can realize safe, intelligent and efficient remote control and autonomous control in natural gas stations, greatly improving the system's operating efficiency, safety, autonomy and intelligence level.

[0061] The contents not described in detail in the specification of the present invention belong to the prior art known to those skilled in the art.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An explosion-proof soft bus adapter based on open source Hongmeng, characterized in that: It adopts industrial-grade domestically produced MCU chip design and has multiple peripheral interfaces, including 1 analog input, 1 analog output, 4 digital inputs, 2 digital outputs, 1 2.4GHz / 5.8GHz WiFi module with automatic frequency switching, 1 low-power Bluetooth module BLE, 1 NFC module, 1 RS485 / RS232 composite port supporting multiple protocols and adaptive transmission rates, and 1 adaptive Gigabit Ethernet port; Built-in hardware national secret security chip, supports national secret algorithm, and realizes encrypted storage and transmission of sensitive data; the overall explosion-proof design, including multi-layer explosion-proof design and intrinsically safe design of the interface; It has a built-in lightweight version of the open source HarmonyOS, which is customized and developed according to the characteristics of the gas industry and optimized for adapter hardware. It is equipped with intelligent applications and atomic services for the gas industry, integrates edge computing and machine learning models, and uses the distributed soft bus, task scheduling, and resource management features of the HarmonyOS system to support data analysis, predictive maintenance, and intelligent decision-making, and ensure multi-tasking, data real-time, and efficient collaboration between devices; it has the HarmonyOS soft bus communication capability, which can achieve seamless resource sharing, autonomous discovery, self-organizing networking and task allocation between devices, and quickly realize terminal-side autonomous closed-loop control through the super device body, support distributed data sharing and collaborative control, and realize the HarmonyOS and intelligent access of traditional instruments and equipment, meeting the natural gas station's demand for high real-time, distributed and safe intelligent control, and improving the safety, autonomy and intelligence level of gas stations.

2. The explosion-proof soft bus adapter based on open source Hongmeng according to claim 1 is characterized in that: The adapter's multi-layer flameproof design includes a double-sealed housing, internal fireproof materials and a self-detecting temperature sensor to ensure safe operation in extreme environments.

3. The explosion-proof soft bus adapter based on open source Hongmeng according to claim 1 is characterized in that: The intrinsic safety design of the adapter includes circuit restrictions on all external interfaces and power output modules. Through current limiting resistors, protection resistors, voltage stabilization circuits and Zener diodes, the current and voltage are limited to a safe range to prevent sparks or arcs.

4. The explosion-proof soft bus adapter based on open source Hongmeng according to claim 1 is characterized in that: The adapter's built-in hardware national security chip supports SM2, SM3, SM4, SM9 national standard cryptographic algorithms and AES, DES, 3DES, SHA series, and RSA. It has a 64K file and key security storage area to prevent physical cracking and attacks. The Hongmeng system is deeply integrated with the chip, using hardware acceleration functions and system security mechanisms to achieve efficient and reliable data encryption and decryption, ensuring the security of data and instructions in IoT communications.

5. The explosion-proof soft bus adapter based on open source Hongmeng according to claim 1 is characterized in that: The adapter's lightweight open source Hongmeng operating system has enhanced features for the gas industry, supporting real-time multi-tasking, gas industry-specific intelligent applications, edge computing, and machine learning model operations. The Hongmeng system ensures efficient operation of edge computing and machine learning through optimized scheduling mechanisms and resource management, and realizes intelligent decision-making for complex working conditions such as autonomous pressure and flow regulation, pipe burst monitoring and control, autonomous odorization, and equipment health management.

6. The explosion-proof soft bus adapter based on open source Hongmeng according to claim 1 is characterized in that: The adapter's HarmonyOS soft bus communication capability supports 2.4GHz and 5.8GHz dual-band wireless communications, and can automatically switch to the optimal frequency band based on actual business needs and on-site wireless environment conditions. With the help of the Harmony system's distributed capabilities, it can further provide higher bandwidth, more stable connections and low-latency services, reduce signal interference, and improve data transmission reliability.

7. The explosion-proof soft bus adapter based on open source Hongmeng according to claim 1 is characterized in that: The adapter's Hongmeng OS soft bus communication capability enables self-discovery and self-organizing networking between devices, supports the construction of distributed super-device bodies between multiple adapters, with a maximum of 20 super-device bodies, and realizes ultra-low latency data and command transmission through the soft bus, enabling collaborative work between devices and meeting the needs of multi-device interconnection and collaboration and real-time task scheduling at the site.

8. The explosion-proof soft bus adapter based on open source Hongmeng according to claim 1 is characterized in that: The IoT platform security access module of the adapter can quickly realize the HarmonyOS and intelligentization of traditional instrument equipment in natural gas stations, realize distributed data collection, storage and upload of instrument equipment, and realize automatic data docking, rapid application deployment and function expansion through the atomic service of the HarmonyOS system ecosystem. In conjunction with the built-in hardware national security chip, it can realize the full process security protection of data and information in IoT communications.

9. The explosion-proof soft bus adapter based on open source Hongmeng according to claim 1 is characterized in that: The adapter's industrial-grade domestically produced MCU chip is a high-performance multi-core heterogeneous processing chip that integrates the Cortex-M33 Star real-time control core and the Cortex-A7 application processing core. It has powerful computing power and rich on-chip resources. After deep adaptation and optimization of the characteristics of the Hongmeng system, it supports large-scale data processing and multi-task collaboration, providing performance guarantees for complex applications in natural gas stations.

10. The explosion-proof soft bus adapter based on open source Hongmeng according to claim 1 is characterized in that: The overall explosion-proof mark of the adapter is Ex db [ia] II B T4 Gb, which complies with relevant explosion-proof standards. It is suitable for natural gas stations where explosion risks may exist, ensuring the safe operation of on-site equipment and data.

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