Screwing-in type converter used for enabling industrial control instrument equipment of natural gas field station to be swung

Abstract

The invention discloses a rotary-in type converter for industrial control instrument equipment of a natural gas field station. The rotary-in type converter adopts a domestic industrial-grade chip carrying a rotary-type system, adopts an overall intrinsic safety explosion-proof design, modularizes hardware components, is independent of a core board and an I / O (Input / Output) board and is integrated through a standard pin interface, and the I / O board can be replaced as required to adapt to equipment requirements. A kernel adaptation unit and a drive adaptation unit are arranged, hardware resources can be efficiently managed, and data collection, intelligent control and soft bus communication are supported. In addition, the converter also has a distributed characteristic, resource sharing and cooperative operation among equipment are realized by using the star flash communication module, encryption communication is supported, and the flexibility and expandability of the system are improved. In addition, a national secret security chip is built in, various encryption algorithms are supported, secure storage and transmission of sensitive data are ensured, and malicious tampering or unauthorized access is prevented. Reliable technical support is provided for intelligent management of the natural gas station.

Description

Technical Field

[0001] The present invention belongs to the field of industrial control technology for natural gas stations. Specifically, it relates to a screw-in converter for the integration of industrial control instrumentation equipment at natural gas stations. Background Art

[0002] With the acceleration of urbanization and the continued growth of natural gas demand, the safe operation and intelligent management of urban gas stations have become key industry priorities. However, traditional industrial control instrumentation suffers from common problems such as limited functionality, inconsistent interface standards, and low intelligence levels, making it difficult to adapt to the increasingly complex process and safety management requirements of gas stations. Currently, most gas stations still rely on foreign hardware and industrial software, which not only poses the risk of supply disruptions or technical blockades, but also exposes them to data security threats such as device intrusion and malicious manipulation. In extreme cases, systems relying on foreign technology could potentially paralyze the entire gas station monitoring system due to backdoor activation or malicious intervention, posing a significant security risk. Furthermore, existing systems are generally based on traditional architectures with long control paths and slow response times, making it difficult to achieve real-time linkage and coordinated operation between devices. This architecture also limits the station's autonomy and fails to meet the requirements of modern gas companies for efficient and safe operation and management.

[0003] With the rapid development of new technologies such as "cloud, big data, Internet of Things, mobile Internet, and artificial intelligence", and the continuous improvement of the open source Hongmeng ecosystem, applying the autonomous and controllable open source Hongmeng operating system to the industrial field and building an autonomous and controllable industrial control ecosystem has become a current technological development trend. Summary of the Invention

[0004] This invention aims to address the aforementioned deficiencies in the existing technology by providing a screw-in converter for the Hongmeng-based industrial control instrumentation of natural gas stations. Based on a domestically produced industrial-grade chip design and equipped with the open-source Hongmeng operating system, it can quickly connect to traditional instrumentation equipment, establishing end-to-end intelligent collaboration and data encryption transmission capabilities. Through soft bus interconnection and enhanced autonomous decision-making capabilities, the converter can meet the data collection, intelligent control, and information security needs of gas stations, significantly enhancing the safety and autonomy of stations in production, operation, transmission, distribution, and dispatch, reducing reliance on foreign technology and promoting the gas industry's autonomous and controllable intelligent upgrades.

[0005] Through the present invention, the intelligence level, safety and data collaboration capabilities of instrument equipment can be significantly improved, providing comprehensive technical support for the intelligent upgrade of the gas industry.

[0006] The present invention solves the technical problem by adopting the following technical solutions:

[0007] A screw-in converter for the Hongmengization of industrial control instrument equipment in natural gas stations, including independently designed I / O boards and core boards, which are modularly integrated by pin insertion.

[0008] The I / O board is used for signal access and preprocessing and transmitting the preprocessed data to the core board. The signal access types include 4-20mA signal, RS485 signal, and digital input signal;

[0009] The core board is equipped with a lightweight open source Hongmeng operating system, which is responsible for the overall control, data processing, communication coordination and security encryption of the converter.

[0010] Furthermore, the core board includes a customized and developed domestic industrial-grade MCU with a lightweight open source Hongmeng operating system, including a Star Flash communication module, a national security chip module, a hardware watchdog chip, an Ethernet conversion chip and a power management module.

[0011] Furthermore, the Star Flash communication module supports low-power wireless communication, works in conjunction with the national secret security chip module, encrypts the transmitted data through an encryption algorithm, and supports soft bus technology to realize self-organizing networking of multiple devices.

[0012] Furthermore, the national secret security chip module has a built-in hardware acceleration module that supports SM2, SM3, and SM4 algorithms, which is used for encryption, decryption, and signature verification to protect sensitive data and control instructions, and a secure storage area is used inside the chip to store keys.

[0013] Furthermore, the customized lightweight open source Hongmeng operating system includes a kernel adaptation unit and a driver adaptation unit.

[0014] Furthermore, the kernel adaptation unit selects the most suitable Hongmeng operating system kernel according to the hardware resource differences of industrial control instrument equipment, and abstracts the hardware resources of domestic industrial-grade MCUs through a specially developed hardware abstraction layer, providing a unified hardware access interface for the Hongmeng operating system, ensuring that the operating system can efficiently call and manage hardware resources; the driver adaptation unit develops a series of dedicated Hongmeng application program interfaces, driver interfaces and device tree description files based on the Hongmeng driver framework to provide unified access capabilities for peripherals.

[0015] Furthermore, the core board adopts a multi-layer PCB design, which is divided into a signal processing layer, a power distribution layer and a heat dissipation layer. The main control chip is connected to other functional modules through high-speed interfaces such as SPI, I2C and UART, and the Ethernet interface, serial port, power interface and debugging interface are brought out through cables.

[0016] Furthermore, the converter adopts a cylindrical design and is equipped with a standard threaded interface. It can be quickly combined with the instrument equipment by screwing in without changing the original explosion-proof type and protection level of the instrument, and together with the instrument forms an integrated Hongmeng smart instrument.

[0017] Furthermore, the communication between the core board and the I / O board adopts SPI or I2C protocol to ensure low latency and high reliability of signal transmission.

[0018] Furthermore, the I / O board adopts a modular design and has a hot-swappable function. Different signal access modules have common mechanical dimensions and pin definitions, and support a data cache function, which can temporarily store data when communication is interrupted.

[0019] The advantages of the present invention compared with the prior art are:

[0020] (1) System integration and adaptability: The hardware components adopt a modular design. The core board and I / O board are independent and modularly integrated through a standard pin interface. This unique structure allows for the rapid replacement of different types of I / O boards according to the instrument signal type, making it easy to adapt to the diverse equipment requirements of gas stations. Compared with the traditional integrated design, the modular structure of the present invention greatly improves the flexibility and scalability of the system. When facing different equipment or new equipment access, there is no need to redesign or replace the entire converter. Only the I / O board needs to be replaced or upgraded, which reduces equipment maintenance costs and development costs, while shortening the development cycle, providing a more convenient solution for the replacement of industrial control instrument equipment in natural gas stations.

[0021] (2) Customized Hongmeng operating system: The converter is equipped with a lightweight, open-source Hongmeng operating system, which is customized and developed based on the characteristics of the gas industry. It includes a kernel adaptation unit and a driver adaptation unit. The use of the Hongmeng system and the development of a customized operating system make the converter more efficiently integrated into industrial control instrumentation equipment, enabling better call and management of hardware resources, while also realizing functions such as data acquisition, intelligent control, and soft bus communication.

[0022] (3) Intelligence and Collaboration: The system has distributed feature adaptation capabilities, enabling resource sharing and seamless task transfer among multiple industrial control instruments within a natural gas station. It also supports encrypted communication and distributed collaborative operations between end-devices. Automatic networking and dynamic device discovery via a distributed soft bus enable the system to form a self-organizing, adaptive distributed network system, improving system flexibility and scalability.

[0023] (4) Safety and reliability: The explosion-proof design combined with the encryption chip ensures the reliable operation of the equipment in hazardous environments and provides high security for data communications.

[0024] (5) Easy to integrate: The cylindrical screw-in design allows for quick access to instrumentation equipment and seamless integration with existing equipment without destroying the original structure and protective features. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural block diagram of a screw-in converter for Hongmeng-based industrial control instrumentation equipment at a natural gas station according to the present invention;

[0026] Figure 2 This is a schematic diagram of the physical structure of a screw-in converter used for the Hongmengization of industrial control instrument equipment in natural gas stations according to the present invention. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] The present invention relates to a screw-in converter for realizing the Hongmengization of industrial control instrument equipment at natural gas stations, such as Figure 1 As shown in the figure, it is a structural block diagram:

[0029] (1) The screw-in converter of the present invention adopts independent designs of core board and I / O board, and realizes modular integration of the two through pin insertion. This design provides flexible signal access capability and can quickly adapt to the diverse needs of gas station equipment. The specific implementation method is as follows:

[0030] ① Connection method between core board and I / O board:

[0031] In terms of physical structure, the core board and I / O board are connected via a standard pin interface. The interface design meets industrial-grade reliability requirements and can withstand the vibration and environmental changes of long-term use. The pin interface has a locking device (such as a clip or screw) to ensure the stability of the two boards when connected and prevent loosening.

[0032] Regarding electrical interfaces, the pin connector is divided into power pins and signal pins. The power pins provide stable DC power with a voltage range of 3.3V to 5V, ensuring the power requirements of various I / O boards. The signal pins adopt a multi-channel design, supporting the transmission of analog, digital, and communication signals. The pin connector is hot-swappable, facilitating on-site replacement of I / O boards.

[0033] The communication between the core board and the I / O board adopts SPI (Serial Peripheral Interface) or I2C protocol to ensure low latency and high reliability of signal transmission.

[0034] ②The I / O board adopts a modular design and connects to the core board via pins, allowing for quick replacement of different access boards to accommodate different signal types. The I / O board adopts a hot-swappable design, allowing for module replacement without shutting down the converter, improving maintenance efficiency. Different signal access modules have common mechanical dimensions and pin definitions to ensure compatibility. Specific board types supported are:

[0035] 4-20mA signal access board: Equipped with high-precision current sampling resistors and operational amplifiers, it converts 4-20mA analog signals into digital signals that can be processed by the core board. It supports signal isolation with an isolation voltage of up to 1500V to avoid signal distortion caused by common-mode interference.

[0036] RS485 signal access board: Utilizes industry-standard RS485 communication interface chips (such as TI SN75176 or MAX485) to support multi-device bus communication. Features adaptive transmission rate and ESD protection circuitry to protect the RS485 bus from electrical transients and ensure signal stability. Supports access to devices such as transmitters and flow meters.

[0037] Digital Input Signal Board: Supports digital input signals and is compatible with industrial-grade sensors and switching devices. It features input debounce circuitry to filter out mechanical contact vibration and electrical interference. The input signal range is 0–24V, with automatic level detection and support for both high and low-level signals.

[0038] Through the independent modular design of the core board and I / O board, the screw-in converter of this invention supports rapid adaptation to a variety of signal types, improving the flexibility, reliability, and maintenance efficiency of the device. The core board's efficient signal processing capabilities, in conjunction with the open-source Hongmeng operating system, enable intelligent and highly reliable signal acquisition, making it suitable for a variety of complex application scenarios in gas stations.

[0039] (2) The core board of the screw-in converter of the present invention adopts a domestically produced industrial-grade MCU equipped with a customized and lightweight open-source Hongmeng operating system. It is mainly composed of a main control MCU, a Xingshan communication module, a national secret security chip module, a hardware watchdog chip, an Ethernet conversion chip and a power management module. The specific implementation method is as follows:

[0040] ① The core board utilizes a multi-layer PCB design, divided into signal processing, power distribution, and heat dissipation layers. This compact layout ensures industrial-grade reliability. The main control chip (MCU) connects to other functional modules via high-speed interfaces such as SPI, I2C, and UART, ensuring low-latency data transmission. The core board also features Ethernet, serial (UART), power, and debug ports via cables, facilitating access to external devices and maintenance.

[0041] ② It utilizes domestically produced industrial-grade chips, offering high performance and low power consumption, making it suitable for the complex operating environments of gas stations. The main control MCU runs a customized, lightweight, open-source Hongmeng operating system, supporting real-time multitasking management and responsible for data acquisition, device control, and communication coordination. It also provides hardware interrupt support, ensuring real-time response to high-priority tasks (such as alarms or data exception handling) when multiple tasks are running concurrently, and supports edge computing.

[0042] ③ Star Flash communication modules (SLB and SLE) support low-power wireless communication, suitable for efficient communication between end-devices. They work in conjunction with the national security chip to encrypt transmitted data using the AES or SM4 algorithm to ensure communication security. Supporting soft bus technology, multiple devices can self-organize into a distributed collaborative network, significantly improving communication efficiency between gas station equipment.

[0043] ④ The National Secret Security Chip module includes a built-in hardware acceleration module supporting the SM2, SM3, and SM4 algorithms for encryption, decryption, and signature verification, protecting sensitive data and control instructions. The SM4 algorithm encrypts key data stored on the core board (such as device ID and user information) to prevent data leakage. The SM2 algorithm is used for device identity authentication during communication, ensuring data is transmitted only between authorized devices. A secure storage area within the chip stores keys that are inaccessible and available only for authorized operations.

[0044] ⑤ The hardware watchdog chip monitors the operating status of the main MCU and automatically triggers a system reset when it detects a system dead loop or prolonged unresponsiveness. The watchdog chip works in conjunction with the power management module to ensure long-term stable operation of the device in complex environments.

[0045] ⑥ The Ethernet conversion chip provides a standard RJ45 interface that complies with the IEEE 802.3 protocol and can be directly connected to external network devices (such as industrial gateways or monitoring platforms). The integrated hardware TCP / IP protocol stack reduces the communication load of the main MCU and improves data packet transmission efficiency.

[0046] ⑦ The power management module is responsible for converting the external power supply (DC 12V or 24V) to the operating voltage required by the device (such as 3.3V or 5V). It also provides power overvoltage, overcurrent, and short-circuit protection to prevent damage to the device due to electrical anomalies. It uses a high-efficiency DC-DC step-down chip (efficiency ≥ 90%) to reduce energy consumption while ensuring performance.

[0047] The I / O board design of the screw-in converter of the present invention supports multiple signal access types:

[0048] ①Supports multiple signal access, including: 4-20mA analog signal, adopts differential input design, and has a high-precision ADC (analog-to-digital converter), which can realize real-time acquisition and monitoring of 4-20mA signals, with an input impedance of 250Ω to ensure signal accuracy; RS485 serial signal, equipped with a standard RS485 interface, supports half-duplex communication, and can exchange data with a variety of smart instruments and transmitters. The maximum communication distance can reach 1200 meters, and the communication rate is adjustable, supporting up to 115200 bps; digital input signal: supports multiple digital inputs, the input voltage range is 0-30V, and it has optical isolation to prevent the impact of high voltage on the system, suitable for application scenarios such as access control equipment.

[0049] ② Compatible with a variety of devices: Through a flexible terminal design, it can quickly adapt to a variety of gas station equipment, such as transmitters, smart meters, and access control devices. The terminal design adopts a clearly marked design for easy access and maintenance.

[0050] ③ Intelligent signal processing function, built-in high-performance signal processing unit, with functions such as filtering, data calibration, and anomaly detection.

[0051] ④ After intelligent signal processing, data can be transmitted to the backend monitoring system through the core board using standard protocols (such as Modbus RTU and TCP / IP), enabling centralized data management and analysis. The I / O board supports data caching, temporarily storing data during communication interruptions to ensure data is not lost, and automatically uploading it when communication is restored.

[0052] The core board also includes a lightweight, open-source Hongmeng operating system customized and developed based on the characteristics of the gas industry. It includes a kernel adaptation unit and a driver adaptation unit, and has enhanced features for the gas industry. The specific implementation methods are as follows:

[0053] ① Kernel Adapter Unit: Based on the hardware resource differences of industrial control instrumentation equipment, the most suitable Hongmeng OS kernel version is selected to ensure optimal performance on different hardware platforms. The hardware resources of domestically produced industrial-grade MCUs (such as GPIO, ADC, PWM, UART, etc.) are abstracted through a specially developed hardware abstraction layer (HAL). The HAL provides a unified interface, enabling upper-layer applications and operating systems to seamlessly access underlying hardware resources. The HAL's modular design facilitates subsequent expansion and maintenance, supporting flexible replacement of different MCU models.

[0054] ② Driver Adapter Unit: Based on the Hongmeng driver framework, the driver adapter unit has developed a series of dedicated Hongmeng application programming interfaces (APIs), allowing peripherals to be accessed through standardized interfaces. The driver for each peripheral follows the Hongmeng driver model, ensuring the compatibility and portability of the system. The driver interface includes support for various sensors, actuators, and communication modules, including:

[0055] Sensor driver: supports temperature sensors, pressure sensors, flow sensors, etc., and can collect data in real time and perform preprocessing.

[0056] Actuator driver: supports valve control, alarm and other actuator devices, and realizes remote control and status feedback through API.

[0057] Communication module driver: supports RS485, CAN bus, Ethernet and other communication protocols to ensure efficient data exchange with other devices.

[0058] The device tree description file is used to describe the hardware structure, providing information such as the device address, type, and function, simplifying the driver development and management process. The use of the device tree enables the system to flexibly identify and configure different hardware components.

[0059] ③ It features enhanced features for the gas industry, supporting both scheduled and event-driven data collection modes. The collection frequency can be flexibly adjusted based on application requirements to ensure real-time and accurate data. It also implements rule-based intelligent control, automatically adjusting equipment through built-in control algorithms (such as PID control and fuzzy control), improving system automation and response speed. It utilizes a soft bus architecture and supports the integration of multiple communication protocols, enabling interoperability between devices and simplifying system integration.

[0060] ④ The operating system has dynamic resource management capabilities that automatically adjust the allocation of CPU, memory, and I / O resources based on system load, ensuring stable system operation even under high loads. A built-in monitoring module monitors system resource usage in real time and provides visual resource usage reports to facilitate performance optimization.

[0061] The screw-in converter of the present invention has a distributed characteristic adaptation function, and the specific implementation method is as follows:

[0062] ① The built-in Starlight communication module supports multiple wireless communication protocols (such as Wi-Fi, Zigbee, and LoRa), enabling efficient data transmission between devices. This module automatically selects the optimal communication method based on the on-site environment, ensuring signal stability and transmission reliability. The Starlight communication module's low power consumption makes it suitable for long-term industrial operations, extending the life of the equipment. It dynamically adjusts power consumption modes to optimize energy consumption under different operating conditions.

[0063] ② Based on distributed soft bus technology, the converter enables dynamic discovery and automatic networking between devices. When each device connects to the network, it automatically sends a broadcast signal, which other devices receive to identify and connect, without manual intervention. The soft bus architecture supports multiple data transmission protocols, flexibly addressing the needs of different device types. Through a unified interface, the device access process is simplified and system compatibility is improved.

[0064] ③ A built-in distributed data management module enables centralized management and real-time analysis of data from multiple industrial control instruments. This module supports real-time data acquisition, storage, and processing, ensuring data integrity and consistency. The data management module utilizes a distributed database architecture, automatically adjusting data storage strategies based on device operating status and data flow, ensuring efficient data read and write performance.

[0065] ④ Encrypted Communication and Distributed Collaborative Operation: The converter supports end-to-end encryption technology, ensuring the confidentiality and integrity of data during transmission. An inter-device authentication mechanism ensures that only authorized devices can join the network, enhancing system security. The converter supports distributed collaborative operation, enabling real-time coordination of tasks across devices within the station. Through a built-in task scheduling algorithm, the system dynamically allocates tasks based on device status and load, optimizing resource utilization. The system supports multiple collaborative modes, including master-slave and peer-to-peer, to meet the needs of diverse application scenarios. Devices can achieve asynchronous communication through message queues, improving system response speed and processing capabilities.

[0066] ⑤ The converter features self-organizing and adaptive networking capabilities, automatically adjusting the network topology based on field device changes. When new devices are connected or existing devices go offline, the system automatically reorganizes the network to ensure smooth data flow and system stability. Through network self-healing mechanisms, the system automatically finds alternative paths when some devices fail, ensuring continuous and reliable data transmission.

[0067] In terms of physical structure, it adopts a columnar design with a compact overall appearance, which is convenient for installation and use in field equipment. The converter is equipped with a threaded interface that meets international standards and is compatible with the instrument equipment of most current gas stations, such as transmitters, flow meters and pressure sensors. The threaded interface is precisely processed to ensure the sealing and protective performance during installation, avoiding the risk of leakage caused by improper installation. The connection between the converter and the instrument equipment is completed through a screw-in installation method, without the need for additional modification or fixing accessories. The columnar design provides a balance between mechanical strength and space utilization, and ensures the overall explosion-proof performance and environmental adaptability of the combination without changing the original explosion-proof type and protection level of the instrument. After installation, the converter and the instrument equipment together form an integrated Hongmeng smart meter, which can realize functions such as data acquisition, intelligent control and distributed collaboration.

[0068] The converter features an intrinsically safe explosion-proof design, marked Ex ia II B T4 Ga, making it suitable for hazardous environments. Current limiting, voltage limiting, and short-circuit protection effectively limit energy output, preventing sparks and high temperatures. The housing is constructed of high-strength aluminum alloy or stainless steel, with a double seal and corrosion-resistant coating to prevent the ingress of external flammable gases and moisture. It also offers impact resistance, making it suitable for harsh industrial environments.

[0069] The converter has a built-in national security chip that supports national standard encryption algorithms such as SM2, SM3, and SM4, and can encrypt, store, and transmit sensitive data. Through the hardware acceleration unit, the chip can quickly complete encryption and decryption operations, meeting the real-time requirements of industrial equipment. During communication, the converter uses the SM2 algorithm to authenticate the device identity and exchange keys to ensure the legitimacy of both communicating parties; the transmitted data is protected by SM4 symmetric encryption for confidentiality, and the data integrity is verified by SM3 hashing. The chip is equipped with a secure storage area to protect private keys and other sensitive information, and only authenticated instructions are allowed to access it. In addition, the chip has anti-tampering and exception clearing functions to prevent data theft or malicious tampering. This design provides end-to-end security for inter-device communication, remote control, and sensitive data protection, effectively improving the safety and reliability of gas station equipment.

[0070] To sum up, the present invention designs a screw-in converter for the Hongmeng-based industrial control instrument equipment of natural gas stations. It adopts modular design, domestically produced industrial-grade chips, lightweight open source Hongmeng operating system and multi-level security protection technology to achieve efficient, intelligent and safe equipment integration and data processing, which can significantly improve the autonomy, intelligence level and operational safety of gas station equipment, and provide reliable technical support for the industry's intelligent upgrade.

[0071] 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.

[0072] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screw-in converter for the integration of industrial control instrumentation equipment at natural gas stations, characterized in that: Including independently designed I / O board and core board, the modular integration of the two is achieved through pin insertion. The I / O board is used for signal access and preprocessing and transmitting the preprocessed data to the core board. The signal access types include 4-20mA signal, RS485 signal, and digital input signal; The core board is equipped with a lightweight open source Hongmeng operating system, which is responsible for the overall control, data processing, communication coordination and security encryption of the converter.

2. A screw-in converter for the integration of industrial control instrumentation equipment at a natural gas station according to claim 1, characterized in that: The core board includes a customized and lightweight open source domestic industrial-grade MCU with Hongmeng operating system, including a Star Flash communication module, a national security chip module, a hardware watchdog chip, an Ethernet conversion chip and a power management module.

3. The screw-in converter for the Hongmengization of industrial control instrumentation equipment at a natural gas station according to claim 2 is characterized in that: The Star Flash communication module supports low-power wireless communication, works in conjunction with the national secret security chip module, encrypts transmitted data through an encryption algorithm, and supports soft bus technology to realize self-organizing networking of multiple devices.

4. The screw-in converter for the Hongmengization of industrial control instrumentation equipment at a natural gas station according to claim 2 is characterized in that: The national secret security chip module has a built-in hardware acceleration module that supports SM2, SM3, and SM4 algorithms, which is used for encryption, decryption, and signature verification to protect sensitive data and control instructions, and a secure storage area is used inside the chip to store keys.

5. The screw-in converter for the Hongmengization of industrial control instrumentation equipment at a natural gas station according to claim 2 is characterized in that: The customized lightweight open source Hongmeng operating system includes a kernel adaptation unit and a driver adaptation unit.

6. The screw-in converter for the Hongmengization of industrial control instrumentation equipment at a natural gas station according to claim 5 is characterized in that: The kernel adaptation unit selects the most suitable Hongmeng operating system kernel according to the hardware resource differences of industrial control instrument equipment, and abstracts the hardware resources of domestic industrial-grade MCUs through a specially developed hardware abstraction layer, providing a unified hardware access interface for the Hongmeng operating system to ensure that the operating system can efficiently call and manage hardware resources; the driver adaptation unit develops a series of dedicated Hongmeng application program interfaces, driver interfaces and device tree description files based on the Hongmeng driver framework to provide unified access capabilities for peripherals.

7. The screw-in converter for the Hongmengization of industrial control instrumentation equipment in natural gas stations according to claim 2 is characterized in that: The core board adopts a multi-layer PCB design, which is divided into a signal processing layer, a power distribution layer and a heat dissipation layer. The main control chip and other functional modules are connected through high-speed interfaces such as SPI, I2C and UART, and the Ethernet interface, serial port, power interface and debugging interface are brought out through cables.

8. The screw-in converter for the Hongmengization of industrial control instrumentation equipment in natural gas stations according to claim 1 is characterized in that: The converter adopts a cylindrical design and is equipped with a standard threaded interface. It can be quickly combined with the instrument equipment by screwing in without changing the original explosion-proof type and protection level of the instrument. Together with the instrument, it forms an integrated Hongmeng smart instrument.

9. The screw-in converter for the Hongmengization of industrial control instrumentation equipment at a natural gas station according to claim 1 is characterized in that: The communication between the core board and the I / O board adopts SPI or I2C protocol to ensure low delay and high reliability of signal transmission.

10. The screw-in converter for the Hongmengization of industrial control instrumentation equipment in natural gas stations according to claim 1 is characterized in that: The I / O board adopts a modular design and has a hot-swappable function. Different signal access modules have common mechanical dimensions and pin definitions, and support a data cache function, which can temporarily store data when communication is interrupted.

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