Industrial data gateway circuit

Abstract

The utility model relates to an industrial data gateway circuit, which comprises a power supply management module connected with a power supply, a Linux operating system control module and a 4G communication module, and is characterized in that the Linux operating system control module is provided with an Ethernet communication port and a WIFI communication port; a 4G communication end of the Linux operating system control module is connected with a data communication end of the 4G communication module, a first power output end of the power management module outputs first power voltage to the Linux operating system control module for power supply, and a second power output end of the power management module outputs second power voltage to the 4G communication module for power supply. According to the invention, multiple communication modes of the data gateway can be realized, namely coexistence of Ethernet, WiFi and 4G, the communication adaptability and stability of the system in multiple scenes are improved, and meanwhile, the reliability and energy consumption efficiency of overall operation of the system are guaranteed through reasonable power supply configuration.

Description

Technical Field

[0001] This application relates to the technical field of industrial data gateways, and in particular to an industrial data gateway circuit. Background Technology

[0002] Currently, in the field of Industrial Internet of Things (IIoT), data acquisition gateways serve as a crucial hub for data collection and transmission from devices, and their performance directly impacts the intelligence level and data transmission efficiency of industrial systems. However, most existing data acquisition gateways still employ a microcontroller-based control architecture, typically supporting only limited communication methods such as Wi-Fi or Ethernet, resulting in significant limitations in overall performance.

[0003] Specifically, existing data acquisition gateways, due to limited hardware resources, are generally configured with small amounts of memory and storage space, lacking efficient data caching and processing capabilities, making it difficult to meet the demands of industrial sites for edge computing, real-time response, and large-scale data processing. Furthermore, limited by the integration capabilities of microcontrollers, these gateways struggle to support high-speed wireless communication modules such as 4G, and their ability to parse and handle complex communication protocols is limited, significantly restricting their application scenarios, especially in industrial settings with unstable network environments or high deployment flexibility requirements, where they struggle to fully realize their potential. Utility Model Content

[0004] To address the limitations of existing data acquisition gateways in terms of communication methods, storage and processing capabilities, and their inability to adapt to complex industrial IoT application scenarios, this application provides an industrial data gateway circuit.

[0005] An industrial data gateway circuit includes a power management module, a Linux operating system control module, and a 4G communication module connected to a power source. The Linux operating system control module has an Ethernet communication port and a WIFI communication port. The Ethernet communication port is used to connect to a corresponding Ethernet connector element, and the WIFI communication port is used to access a corresponding WIFI network for data communication. The 4G communication terminal of the Linux operating system control module is connected to the data communication terminal of the 4G communication module. The first power output terminal of the power management module outputs a first power voltage to the Linux operating system control module for power supply, and the second power output terminal of the power management module outputs a second power voltage to the 4G communication module for power supply.

[0006] By adopting the above technical solution, combining the power management module, the Linux operating system control module, and the 4G communication module, and providing independent voltage power to each module, multiple communication methods (Ethernet, WiFi, 4G) of the data gateway can coexist, improving the system's communication adaptability and stability in multiple scenarios. At the same time, reasonable power configuration ensures the overall reliability and energy efficiency of the system.

[0007] Preferably, the power management module includes a first level conversion unit and a second level conversion unit. The first level conversion unit includes a first power chip U1 and a second power chip U3. The power input terminal of the first power chip U1 is connected to a power source. After level conversion by the first power chip U1, 5V power is output through the power output terminal of the first power chip U1 for power supply. The power output terminal of the first power chip U1 is connected to the power input terminal of the second power chip U3. After level conversion by the second power chip U3, 3.3V power is output through the power output terminal of the second power chip U3 for power supply. The second level conversion unit includes a third power chip U2. The power input terminal of the third power chip U2 is connected to a power source. After level conversion by the third power chip U2, 3.8V power is output through the power output terminal of the third power chip U21 for power supply.

[0008] By adopting the above technical solution and setting a power management structure that includes three-level level conversion, the power outputs 5V, 3.3V and 3.8V voltages respectively, which can adapt to the working voltage requirements of different functional modules, improve the flexibility and stability of the entire data gateway when facing the power supply of multiple functional components, and especially meet the differentiated requirements of Linux main controller and 4G module for power accuracy and stability.

[0009] Preferably, the Linux operating system control module includes a Linux system control chip U4, the Ethernet communication port is located on the Linux system control chip U4, the Linux system control chip U4 is provided with an RS232 serial communication port, an RS485 serial communication port and an external storage data port, as well as a 4G communication port connected to the data communication terminal of the 4G communication module.

[0010] By adopting the above technical solution, and integrating multiple standard serial interfaces (RS232, RS485), external data storage interfaces and 4G communication ports onto the Linux system control chip, the system's communication protocol adaptability and data processing scalability are significantly enhanced. This facilitates flexible access and data storage management in different industrial devices, and improves the overall system compatibility and deployment flexibility.

[0011] Preferably, the Linux operating system control module further includes a DIP switch chip J11, which has multiple logic processing paths. Each logic processing path has a logic input port, a built-in logic switch, and a logic output port connected in sequence. At least one first resistor is connected between the logic input port and ground, and the logic output port is connected to the logic signal input terminal of the DIP switch corresponding to the Linux system control chip U4.

[0012] By adopting the above technical solution, and by setting up a DIP switch chip containing multiple logic paths, and configuring the control path by connecting the logic resistor to the control signal terminal, the manual selection function of multiple operating modes of the data gateway is realized, thereby improving the device's responsiveness to different application scenarios or customer functional requirements, and enhancing the system's customizability and configuration efficiency.

[0013] Preferably, the RS232 serial communication port is connected to an RS232 communication module. The RS232 communication module includes an RS232 communication main unit and an RS232 communication redundancy unit arranged in parallel. The RS232 communication main unit includes an RS232 communication electrical isolation chip U101 and an RS232 transceiver chip U11. The RS232 transceiver chip U11 is used to send and receive RS232 serial communication data. The data communication terminal of the RS232 transceiver chip U11 is connected to the first data communication terminal of the RS232 communication electrical isolation chip U101, and the second data communication terminal of the RS232 communication electrical isolation chip U101 is connected to the RS232 serial communication port.

[0014] By adopting the above technical solution and introducing an electrical isolation chip and a main redundant transceiver structure into the RS232 serial communication module, electromagnetic interference isolation and dual-channel fault tolerance processing for data communication are achieved, which significantly improves the system's anti-interference capability and communication reliability in complex industrial environments and ensures the continuity and stability of serial transmission.

[0015] Preferably, the RS485 serial communication port is connected to an RS485 communication module. The RS485 communication module includes an RS485 communication main unit and an RS485 communication redundancy unit arranged in parallel. The RS485 communication main unit includes an RS485 transceiver chip U8, which is used to send and receive RS485 serial communication data. The data communication end of the RS485 transceiver chip U8 is connected to the RS485 serial communication port.

[0016] By adopting the above technical solution, and by setting up a primary redundancy structure in the RS485 communication module and using an independent transceiver chip design, the stability of data communication under long-distance, differential transmission conditions is improved. At the same time, it has a certain communication redundancy capability, which enhances the robustness of the data acquisition gateway system in multi-device access scenarios.

[0017] Preferably, the 4G communication module includes a 4G communication chip U10, which has a reset port, a wake-up input port and a wake-up output port. A communication management unit is provided between the reset port, the wake-up input port and the wake-up output port and the corresponding 4G communication port, and the communication management unit is used to manage the working state of the 4G communication chip U10.

[0018] By adopting the above technical solution, and by setting a reset port, wake-up input and output port on the 4G communication chip, and equipping them with communication management units, it is possible to achieve fine control and wake-up management of the working status of the communication module, thereby improving the system's response capability and operating efficiency in low-power operation, remote control and abnormal recovery processes.

[0019] Preferably, the communication management unit includes at least one MOSFET, at least one second resistor, and one third resistor. The first end of the second resistor is connected to a power supply, the second end of the second resistor is connected to the first conducting end of the MOSFET, the second conducting end of the MOSFET is grounded, the controlled end of the MOSFET is connected to the first end of the third resistor, the second end of the third resistor is connected to the corresponding 4G communication port, and the common node between the second end of the second resistor and the first conducting end of the MOSFET is connected to any one of the reset port, the wake-up input port, and the wake-up output port.

[0020] By adopting the above technical solution and constructing a communication management unit composed of MOSFETs and resistors, precise control and drive isolation of level signals can be achieved during reset and wake-up control processes. This improves the controllability and signal security of the system's 4G module state switching and ensures reliable response and stable operation of the module under different control commands.

[0021] Preferably, the 4G communication module further includes an SMA interface J4, a first impedance matching network, and a first surge protector. The first end of the SMA interface J4 is connected to an external LTE antenna, the second end of the SMA interface J4 is connected to the first end of the first impedance matching network, the second end of the first impedance matching network is connected to the first end of the first surge protector, the second end of the first surge protector is grounded, and the third end of the first surge protector is connected to the first data communication terminal of the 4G communication chip U10.

[0022] By adopting the above technical solution, and by setting up an SMA antenna interface, impedance matching network and surge protector, and connecting them to the RF terminal of the 4G communication chip, effective transmission of RF signals, impedance consistency and surge voltage suppression are achieved, thereby improving the RF performance and anti-interference capability of the communication module and ensuring the stability and security of 4G data transmission.

[0023] Preferably, the 4G communication module further includes an SMA interface J9, a second impedance matching network, and a second surge protector. The first end of the SMA interface J9 is connected to an external LTE antenna, the second end of the SMA interface J9 is connected to the first end of the second impedance matching network, the second end of the second impedance matching network is connected to the first end of the second surge protector, the second end of the second surge protector is grounded, and the third end of the second surge protector is connected to the second data communication terminal of the 4G communication chip U10.

[0024] By adopting the above technical solution, and by setting up an SMA interface, impedance matching network and surge protector in the GPS radio frequency path, and connecting it to the radio frequency interface in the 4G communication chip that supports GNSS function, high-quality location signal reception and radio frequency protection can be achieved, ensuring the reliability and accuracy of the data gateway in scenarios requiring device positioning or displacement monitoring.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] This application employs a high-performance control architecture based on the Linux system and is equipped with multiple communication ports, including Ethernet, Wi-Fi, and 4G, to address the shortcomings of traditional data acquisition gateways in terms of communication methods, data processing capabilities, and application flexibility. By integrating Ethernet and Wi-Fi communication ports into the control module, it achieves adaptability to local area networks (LANs) and wireless LANs. Furthermore, by leveraging the direct connection between the 4G communication module and the control module, it expands the remote communication capabilities in environments without a fixed network, significantly enhancing the system's data transmission capabilities in complex or mobile scenarios. Simultaneously, the power management module provides tiered voltage outputs, independently powering the Linux system control module and the 4G communication module, effectively improving the system's power adaptability and stability, and ensuring the normal operation of each module under different operating conditions. This structure realizes an industrial-grade data acquisition solution with diverse communication methods, strong data processing capabilities, and a clear and stable power supply structure, capable of adapting to a wider range of more complex industrial IoT application environments. Attached Figure Description

[0027] Figure 1 This is a flowchart of an industrial data gateway circuit according to one embodiment of this application;

[0028] Figure 2 This is a partial circuit structure diagram of the power management module and power connection structure in an industrial data gateway circuit according to one embodiment of this application;

[0029] Figure 3 This is a partial circuit diagram of the first level conversion unit in an industrial data gateway circuit according to an embodiment of this application. Figure 1 ;

[0030] Figure 4 This is a partial circuit diagram of the first level conversion unit in an industrial data gateway circuit according to an embodiment of this application. Figure 2 ;

[0031] Figure 5 This is a partial circuit structure diagram of the second level conversion unit in an industrial data gateway circuit according to one embodiment of this application;

[0032] Figure 6 This is a partial circuit structure diagram of the Linux operating system control module in an industrial data gateway circuit according to one embodiment of this application;

[0033] Figure 7 This is a partial circuit structure diagram of the RS232 communication master unit in an industrial data gateway circuit according to one embodiment of this application;

[0034] Figure 8 This is a partial circuit structure diagram of an RS232 communication redundancy unit in an industrial data gateway circuit according to one embodiment of this application;

[0035] Figure 9 This is a partial circuit structure diagram of the RS485 communication master unit in an industrial data gateway circuit according to one embodiment of this application;

[0036] Figure 10 This is a partial circuit structure diagram of an RS485 communication redundancy unit in an industrial data gateway circuit according to one embodiment of this application;

[0037] Figure 11 This is a partial circuit structure diagram of the communication management unit in an industrial data gateway circuit according to one embodiment of this application;

[0038] Figure 12 This is a partial circuit structure diagram of the SMA interface J4, the first impedance matching network, and the first surge protector in an industrial data gateway circuit according to one embodiment of this application.

[0039] Figure 13 This is a partial circuit structure diagram of the SMA interface J9, the second impedance matching network, and the second surge protector in an industrial data gateway circuit according to one embodiment of this application.

[0040] Figure 14 This is a partial circuit structure diagram of the DIP switch chip J11 in an industrial data gateway circuit according to one embodiment of this application. Detailed Implementation

[0041] The present application will be further described in detail below with reference to the accompanying drawings.

[0042] In one embodiment, such as Figures 1-2 As shown, this application discloses an industrial data gateway circuit. The industrial data gateway circuit includes a power management module, a Linux operating system control module, and a 4G communication module connected to a power source. The Linux operating system control module is provided with an Ethernet communication port and a WIFI communication port. The Ethernet communication port is used to connect to a corresponding Ethernet connector element, and the WIFI communication port is used to access a corresponding WIFI network for data communication. The 4G communication terminal of the Linux operating system control module is connected to the data communication terminal of the 4G communication module. The first power output terminal of the power management module outputs a first power supply voltage to the Linux operating system control module for power supply, and the second power output terminal of the power management module outputs a second power supply voltage to the 4G communication module for power supply.

[0043] In this embodiment, the power management module serves as the core power supply for the entire system and is directly connected to an external power source. It has two internal voltage output paths. The first power output provides a stable operating voltage for the Linux operating system control module, while the second power output provides the required operating voltage for the 4G communication module. The two voltage paths meet the electrical requirements of the two core units, namely control and communication, thereby ensuring the stability and reliability of the system during multi-functional parallel operation.

[0044] The Linux operating system control module serves as the central control platform for the entire circuit. Internally, it houses the Linux system control chip U4, responsible not only for data processing and communication protocol adaptation but also for data scheduling and forwarding control between devices. This module features two communication interfaces: an Ethernet port and a Wi-Fi port. The Ethernet port connects to Ethernet connectors, enabling wired LAN access and high-speed, low-latency data exchange. The Wi-Fi port provides wireless network access, enhancing deployment flexibility and environmental adaptability, particularly suitable for industrial sites where wired networks are difficult to deploy. To further enhance remote communication capabilities, the Linux operating system control module also includes a 4G communication port. This port connects directly to the data communication port in the 4G communication module, allowing the system to perform data reporting and remote control via cellular networks even in environments without Wi-Fi or Ethernet coverage. This is suitable for complex application scenarios with limited network conditions, such as industrial sites and outdoor locations.

[0045] As a remote communication unit, the 4G communication module integrates a data communication chip that supports cellular networks. Combined with an SMA interface, impedance matching network, and surge protection structure, it can efficiently receive and transmit 4G signals via an external antenna. Simultaneously, the module's power supply is independently provided by the second power output of the power management module, with a voltage typically set to 3.8V, meeting the electrical requirements of the RF communication module and ensuring stable operation during high-power signal transmission or frequent data exchange.

[0046] The overall system connectivity is as follows: the power management module is responsible for providing the necessary voltage support for the control module and the communication module. The Linux operating system control module connects to the external network through wired and wireless communication ports, and establishes a stable data signal link with the 4G communication module through its 4G communication terminal to complete remote data exchange. The entire structure realizes an industrial-grade data acquisition and transmission architecture with power supply separation, diverse communication, centralized control, and remote accessibility.

[0047] Furthermore, such as Figure 2-5As shown, the power management module includes a first level conversion unit and a second level conversion unit. The first level conversion unit includes a first power chip U1 and a second power chip U3. The power input terminal of the first power chip U1 is connected to the power supply. After level conversion by the first power chip U1, 5V power is output through the power output terminal of the first power chip U1 for power supply. The power output terminal of the first power chip U1 is connected to the power input terminal of the second power chip U3. After level conversion by the second power chip U3, 3.3V power is output through the power output terminal of the second power chip U3 for power supply. The second level conversion unit includes a third power chip U2. The power input terminal of the third power chip U2 is connected to the power supply. After level conversion by the third power chip U2, 3.8V power is output through the power output terminal of the third power chip U21 for power supply.

[0048] In this embodiment, by setting a first level conversion unit and a second level conversion unit, the voltage input from the external power supply is converted into various power supply voltages of different levels, which are then supplied to various functional modules in the system to meet the different voltage requirements of different working units, thereby ensuring the electrical stability and safety of the system as a whole under multi-functional and high-load operation.

[0049] In the first level conversion unit, the power input terminal of the first power chip U1 is directly connected to an external power source. After receiving the input voltage, U1 completes the level adjustment process internally and outputs a 5V power supply from its power output terminal. This 5V power supply can not only serve as the direct power supply voltage for some modules in the system, but also as the input source for the second-stage level conversion, continuing to transmit to the power input terminal of the second power chip U3. After receiving a stable 5V voltage, the second power chip U3 further performs level downgrading processing, outputting a 3.3V power supply from its power output terminal. This 3.3V voltage is typically used to provide operating power for the Wi-Fi module, some digital logic circuits, and the low-voltage drive section of the Linux system control chip U4, ensuring that these modules operate with level matching and logic stability, and avoiding functional abnormalities or chip damage caused by overvoltage or level incompatibility.

[0050] The first level conversion unit provides a two-stage stable output from high voltage to medium-low voltage, meeting the voltage requirements of the main control logic. To accommodate the specific voltage requirements of the RF module, a second level conversion unit is also included. This unit comprises an independent third power supply chip, U2, whose power input is also connected to an external power source. Upon receiving power, U2 performs level conversion internally and outputs 3.8V through its power output terminal. This voltage is dedicated to providing independent power to the 4G communication module. Because the 4G module has higher requirements for power drive capability and stability during high-frequency data exchange and antenna RF transmission, the third power supply chip U2 implements a physically and electrically isolated power supply design. This not only improves the reliability of the power supply channel but also prevents current fluctuations between different modules from interfering with each other, ensuring the continuity of the RF communication link and the stability of system communication.

[0051] The entire power management module consists of three chips, U1, U3, and U2, forming two independent yet coordinated level conversion paths that output 5V, 3.3V, and 3.8V voltage levels respectively, serving different control and communication modules. Their close connection and clear division of labor form a highly adaptable and stable power supply system, ensuring the collaborative work of multiple modules and providing fundamental support for their reliable operation in complex industrial environments.

[0052] Furthermore, such as Figure 6 As shown, the Linux operating system control module includes a Linux system control chip U4. The Ethernet communication port is located on the Linux system control chip U4. The Linux system control chip U4 is provided with an RS232 serial communication port, an RS485 serial communication port, an external storage data port, and a 4G communication port connected to the data communication terminal of the 4G communication module.

[0053] In this embodiment, the Linux operating system control module uses the Linux system control chip U4 as its core, and realizes data interaction and control scheduling of peripherals through its integrated communication and interface functions. Chip U4 has an Ethernet communication port for processing data frame transmission and reception with external networks, supporting wired network communication based on the TCP / IP protocol; it also has RS232 and RS485 serial communication ports, corresponding to the serial port access methods of different industrial devices, realizing asynchronous serial data reception and transmission; an external storage data port is used to connect TF cards or other non-volatile storage devices to complete local data reading, writing, and log caching operations; a 4G communication port serves as a high-speed data bridge between U4 and the 4G communication module, realizing data exchange over cellular networks. Based on the Linux operating system, chip U4, through kernel drivers and application-layer control logic, performs unified scheduling and coordinated processing of the above communication ports, ensuring seamless data conversion and synchronous processing between different protocols and transmission methods, thereby completing the multi-source data fusion and distribution control tasks required by the industrial gateway.

[0054] Furthermore, such as Figure 14 As shown, the Linux operating system control module also includes a DIP switch chip J11. The DIP switch chip J11 has multiple logic processing paths. Each logic processing path has a logic input port, a built-in logic switch, and a logic output port connected in sequence. At least one first resistor is connected between the logic input port and ground. The logic output port is connected to the DIP switch logic signal input terminal corresponding to the Linux system control chip U4.

[0055] In this embodiment, the DIP switch chip J11 serves as a function switching component in the Linux operating system control module. Its structure consists of multiple parallel logic processing paths. Each logic processing path is sequentially connected to a logic input port, a built-in logic switch, and a logic output port, forming a complete path from signal input to logic signal output. At least one first resistor is connected in series between the logic input port and ground, ensuring that the input is at a low level when the DIP switch is closed and at a high level when the switch is open due to the pull-up resistor. This configuration ensures clear identification of the DIP signal state and avoids floating signals. The logic switch controls the on / off state according to the DIP switch position. When the user manually adjusts the DIP switch state, the internal logic switch closes or opens accordingly, allowing the logic signal to be transmitted from the logic input port to the logic output port via the logic switch. Each logic output port is connected to the corresponding DIP switch logic signal input in the Linux system control chip U4, thereby realizing the preset startup parameters or function configurations triggered by different DIP switch combinations. This structure enables the Linux system control chip U4 to read the logic state output by the J11 chip in real time during the power-on initialization process, and load different boot firmware or running modes according to the set logic, such as debug mode, communication parameter preset mode or device working strategy switching mode, etc. The dynamic selection of software layer functions is realized through physical layer DIP switch configuration, enhancing the system's flexibility and adaptability to multiple scenarios.

[0056] For example, the four DIP switches designed in this gateway system correspond to DIP switch position 1, DIP switch position 2, DIP switch position 3, and DIP switch position 4, respectively. When the system powers on, it reads the combination state of these four DIP switches and selects different operating functions according to preset logic. When DIP switch position 1 and DIP switch position 2 are in the on state (i.e., 1 and 2 are "1"), while DIP switch position 3 and DIP switch position 4 remain in the off state (i.e., 3 and 4 are "0"), the system recognizes this combination as "1100" and loads the default industrial field data acquisition program, starting the Ethernet and RS485 communication ports for data interface with standard devices. When DIP switch position 1 is "1" and DIP switch positions 2, 3, and 4 are "0" (i.e., the combination is "1000"), the system recognizes this configuration as entering remote maintenance mode. At this time, only the 4G communication channel and debugging serial port are started, and the local log reading service is mounted, allowing the background to remotely connect to inspect the device's operating status or issue update commands. This enables switching the system's operating logic through simple physical DIP switches, improving the device's flexibility to adapt to different application scenarios.

[0057] Furthermore, such as Figure 7-8As shown, the RS232 serial communication port is connected to an RS232 communication module. The RS232 communication module includes an RS232 communication main unit and an RS232 communication redundancy unit arranged in parallel. The RS232 communication main unit includes an RS232 communication electrical isolation chip U101 and an RS232 transceiver chip U11. The RS232 transceiver chip U11 is used to send and receive RS232 serial communication data. The data communication terminal of the RS232 transceiver chip U11 is connected to the first data communication terminal of the RS232 communication electrical isolation chip U101, and the second data communication terminal of the RS232 communication electrical isolation chip U101 is connected to the RS232 serial communication port.

[0058] In this embodiment, by introducing an electrical isolation chip and a primary redundant transceiver structure into the RS232 serial communication module, electromagnetic interference isolation and dual-channel fault tolerance processing for data communication are achieved, which significantly improves the system's anti-interference capability and communication reliability in complex industrial environments, and ensures the continuity and stability of serial transmission.

[0059] Furthermore, such as Figure 9-10 As shown, the RS485 serial communication port is connected to an RS485 communication module. The RS485 communication module includes an RS485 communication main unit and an RS485 communication redundancy unit arranged in parallel. The RS485 communication main unit includes an RS485 transceiver chip U8, which is used to send and receive RS485 serial communication data. The data communication end of the RS485 transceiver chip U8 is connected to the RS485 serial communication port.

[0060] In this embodiment, by setting up a primary redundancy structure in the RS485 communication module and adopting an independent transceiver chip design, the stability of data communication under long-distance, differential transmission conditions is improved, while also having a certain communication redundancy capability, enhancing the robustness of the data acquisition gateway system in multi-device access scenarios.

[0061] Furthermore, such as Figure 11 As shown, the 4G communication module includes a 4G communication chip U10. The 4G communication chip U10 is provided with a reset port, a wake-up input port and a wake-up output port. A communication management unit is provided between the reset port, the wake-up input port and the wake-up output port and the corresponding 4G communication port. The communication management unit is used to manage the working status of the 4G communication chip U10.

[0062] In this embodiment, by setting a reset port, a wake-up input and output port on the 4G communication chip, and equipping them with communication management units, it is possible to achieve fine control and wake-up management of the working state of the communication module, thereby improving the system's response capability and operating efficiency during low-power operation, remote control, and abnormal recovery.

[0063] Furthermore, such as Figure 11 As shown, the communication management unit includes at least one MOSFET, at least one second resistor, and one third resistor. The first end of the second resistor is connected to the power supply, the second end of the second resistor is connected to the first conducting end of the MOSFET, the second conducting end of the MOSFET is grounded, the controlled end of the MOSFET is connected to the first end of the third resistor, the second end of the third resistor is connected to the corresponding 4G communication port, and the common node between the second end of the second resistor and the first conducting end of the MOSFET is connected to any one of the reset port, the wake-up input port, and the wake-up output port.

[0064] In this embodiment, the communication management unit is structured based on a level control and drive loop formed by the coordinated connection of a MOSFET, a second resistor, and a third resistor. This loop is used to manage the logic states of the reset port, wake-up input port, and wake-up output port in the 4G communication module. The first end of the second resistor is directly connected to the system power supply, providing a continuous high-level reference for the loop under normal operating conditions. The second end of the second resistor is connected to the first conducting terminal of the MOSFET, i.e., the source position. This node serves as both the connection point for the voltage transmission path and the distribution center for the drive signal. The second conducting terminal of the MOSFET is grounded, forming a closed loop when the MOSFET is turned on, allowing the voltage introduced from the second resistor to be discharged to ground through this channel, thus pulling the level low. The controlled terminal of the MOSFET, i.e., the gate, is connected to the first end of the third resistor, used to receive control signals from the host computer or control logic module. The second end of the third resistor is connected to the 4G communication port, used to feed back the controlled signal of the MOSFET to the corresponding control interface, enabling direct external control intervention in the communication module's state. The common node between the second resistor and the first conducting terminal of the MOSFET is connected via a line to one of the reset port, wake-up input port, or wake-up output port in the 4G communication module, configured according to control requirements. In this topology, when the MOSFET is off, the second resistor provides a high-level signal to the common node through its first terminal, maintaining the communication module port in the default active state. When the MOSFET is turned on, the power supply voltage is discharged to ground through the MOSFET, causing the potential of the common node to drop, which in turn pulls down the level of the connected communication module control port, triggering the module's reset, wake-up, or sleep state switching operations, thus achieving precise control of the functional state of the 4G communication chip U10. This structure achieves hardware-level dynamic control of the RF module's operating state with a small number of discrete components, offering advantages such as rapid response, compact structure, and low interference, which helps improve the management efficiency and stability of the system in multi-mode operating environments.

[0065] Furthermore, such as Figure 12 As shown, the 4G communication module also includes an SMA interface J4, a first impedance matching network, and a first surge protector. The first end of the SMA interface J4 is connected to an external LTE antenna, the second end of the SMA interface J4 is connected to the first end of the first impedance matching network, the second end of the first impedance matching network is connected to the first end of the first surge protector, the second end of the first surge protector is grounded, and the third end of the first surge protector is connected to the first data communication terminal of the 4G communication chip U10.

[0066] In this embodiment, the RF signal path in the 4G communication module starts with the SMA interface J4, which is used to connect to an external LTE antenna. The first end of the SMA interface J4 is directly connected to the antenna, allowing external RF signals to be effectively coupled into the system through the physical interface. The second end of the SMA interface J4 serves as the signal output end and is electrically connected to the first end of the first impedance matching network. This matching network is designed according to the characteristic impedance of the devices in the RF path and is used to achieve impedance consistency conversion in the signal transmission path, avoiding signal reflection, standing waves, or energy loss due to impedance mismatch, thereby ensuring the transmission efficiency and integrity of the 4G signal in the system. The second end of the first impedance matching network is connected to the first end of the first surge protector. As a safety protection device in the RF path, the surge protector's main function is to quickly shunt high voltage to ground when high voltage transients are introduced at the antenna side due to factors such as lightning strikes, electromagnetic interference, or electrostatic discharge, to protect the subsequent RF circuits from damage. The second end of the surge protector is directly grounded, forming an overvoltage discharge path, ensuring that it can efficiently conduct to the ground line when abnormal voltage occurs. The third terminal of the surge protector is used for signal output, connecting to the first data communication terminal of the 4G communication chip U10. This completes the introduction of the radio frequency signal to the main communication control chip, ensuring that while electromagnetic interference is effectively shielded, the effective signal received by the antenna can be stably transmitted to the 4G communication chip U10 for demodulation and data processing. This structure, with the SMA interface, impedance matching network, and surge protector connected in series, forms a complete antenna front-end path. It not only ensures the electrical performance of the high-frequency signal transmission link but also improves the system's resistance to sudden interference in complex electromagnetic environments through hardware means, thereby achieving dual protection of stability and safety for the 4G communication module in industrial applications.

[0067] Furthermore, such as Figure 13 As shown, the 4G communication module also includes an SMA interface J9, a second impedance matching network, and a second surge protector. The first end of the SMA interface J9 is connected to an external LTE antenna, the second end of the SMA interface J9 is connected to the first end of the second impedance matching network, the second end of the second impedance matching network is connected to the first end of the second surge protector, the second end of the second surge protector is grounded, and the third end of the second surge protector is connected to the second data communication terminal of the 4G communication chip U10.

[0068] In this embodiment, under standard configuration, the device uses a module that only supports 4G communication. Data transmission via an external 4G antenna is achieved through cellular networks, enabling remote collection of industrial equipment operating data and its transmission back to the platform. However, in certain specific application scenarios, such as when customers wish to monitor the physical deployment location of the equipment in real time to prevent unauthorized movement or relocation, the system will use a 4G communication module with integrated GNSS functionality. This module, in addition to 4G communication capabilities, also has the ability to receive satellite positioning signals. To achieve this positioning function, a GPS antenna interface is reserved in the device. When the GNSS-enabled module is activated, this GPS antenna connects to the module's GNSS radio frequency receiver via a standard radio frequency path, receiving signals from satellite systems such as GPS or BeiDou, enabling real-time acquisition of equipment location information. After reading the satellite data, the system can upload the positioning results and equipment data to the backend platform, thus providing monitorability for the equipment in both communication and location information dimensions, meeting customers' customized needs for equipment deployment supervision, access control, and anti-tampering / relocation measures. This design strategy integrates geolocation capabilities while enabling communication functions, making industrial data gateways more adaptable and valuable in terms of security, traceability, and asset management.

[0069] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An industrial data gateway circuit, characterized by, The industrial data gateway circuit comprises a power management module connected with a power supply, a Linux operating system control module and a 4G communication module, an Ethernet communication port and a WIFI communication port are arranged on the Linux operating system control module, the Ethernet communication port is used for connecting a corresponding Ethernet connector element, the WIFI communication port is used for accessing a corresponding WIFI network to perform data communication, a 4G communication end of the Linux operating system control module is connected with a data communication end of the 4G communication module, a first power supply output end of the power management module outputs a first power supply voltage to the Linux operating system control module for power supply, and a second power supply output end of the power management module outputs a second power supply voltage to the 4G communication module for power supply.

2. An industrial data gateway circuit according to claim 1, characterized in that, The power management module comprises a first level conversion unit and a second level conversion unit, the first level conversion unit comprises a first power supply chip U1 and a second power supply chip U3, a power supply input end of the first power supply chip U1 is connected with a power supply, after level conversion by the first power supply chip U1, a 5V power supply is output through a power supply output end of the first power supply chip U1 for power supply, the power supply output end of the first power supply chip U1 is connected with a power supply input end of the second power supply chip U3, after level conversion by the second power supply chip U3, a 3.3V power supply is output through a power supply output end of the second power supply chip for power supply, the second level conversion unit comprises a third power supply chip U2, a power supply input end of the third power supply chip U2 is connected with a power supply, after level conversion by the third power supply chip U2, a 3.8V power supply is output through a power supply output end of the third power supply chip U21 for power supply.

3. An industrial data gateway circuit according to claim 1, characterized in that, The Linux operating system control module comprises a Linux system control chip U4, the Ethernet communication port is arranged on the Linux system control chip U4, the Linux system control chip U4 is respectively provided with an RS232 serial communication port, an RS485 serial communication port and an external storage data port, and a 4G communication port connected with the data communication end of the 4G communication module.

4. An industrial data gateway circuit according to claim 3, characterised in that, The Linux operating system control module further comprises a dial switch chip J11, a plurality of logic processing paths are arranged on the dial switch chip J11, a logic input port, a built-in logic switch and a logic output port connected in sequence are arranged on each logic processing path, at least one first resistor is connected between the logic input port and the ground, and the logic output port is connected with a corresponding dial switch logic signal input end of the Linux system control chip U4.

5. An industrial data gateway circuit according to claim 3, wherein, The RS232 serial communication port is connected with an RS232 communication module, the RS232 communication module includes an RS232 communication main unit and an RS232 communication redundant unit which are connected in parallel, the RS232 communication main unit includes an RS232 communication electrical isolation chip U101 and an RS232 transceiver chip U11, the RS232 transceiver chip U11 is used for receiving and transmitting RS232 serial communication data, a data communication end of the RS232 transceiver chip U11 is connected with a first data communication end of the RS232 communication electrical isolation chip U101, and a second data communication end of the RS232 communication electrical isolation chip U101 is connected with the RS232 serial communication port.

6. An industrial data gateway circuit according to claim 3, wherein, The RS485 serial communication port is connected with an RS485 communication module, the RS485 communication module includes an RS485 communication main unit and an RS485 communication redundant unit which are connected in parallel, the RS485 communication main unit includes an RS485 transceiver chip U8, the RS485 transceiver chip U8 is used for receiving and transmitting RS485 serial communication data, and a data communication end of the RS485 transceiver chip U8 is connected with the RS485 serial communication port.

7. An industrial data gateway circuit according to claim 3, wherein, The 4G communication module includes a 4G communication chip U10, the 4G communication chip U10 is provided with a reset port, a wake-up input port and a wake-up output port, a communication management unit is arranged between the reset port, the wake-up input port, the wake-up output port and the corresponding 4G communication port, and the communication management unit is used for managing the working state of the 4G communication chip U10.

8. An industrial data gateway circuit according to claim 7, characterised in that, The communication management unit includes at least one MOS tube, at least one second resistor and a third resistor, a first end of the second resistor is connected with a power supply, a second end of the second resistor is connected with a first conduction end of the MOS tube, a second conduction end of the MOS tube is grounded, a controlled end of the MOS tube is connected with a first end of the third resistor, a second end of the third resistor is connected with the corresponding 4G communication port, and a common node between the second end of the second resistor and the first conduction end of the MOS tube is connected with any one of the reset port, the wake-up input port and the wake-up output port.

9. An industrial data gateway circuit according to claim 7, characterised in that, The 4G communication module further includes an SMA interface J4, a first impedance matching network and a first surge protector, a first end of the SMA interface J4 is connected with an external LTE antenna, a second end of the SMA interface J4 is connected with a first end of the first impedance matching network, a second end of the first impedance matching network is connected with a first end of the first surge protector, a second end of the first surge protector is grounded, and a third end of the first surge protector is connected with a first data communication end of the 4G communication chip U10.

10. An industrial data gateway circuit according to claim 7, wherein, The 4G communication module further comprises an SMA interface J9, a second impedance matching network and a second surge protector, a first end of the SMA interface J9 is connected with an external LTE antenna, a second end of the SMA interface J9 is connected with a first end of the second impedance matching network, a second end of the second impedance matching network is connected with a first end of the second surge protector, a second end of the second surge protector is grounded, and a third end of the second surge protector is connected with a second data communication end of the 4G communication chip U10.

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