An integrated gateway device based on industrial Ethernet and networking system

Abstract

The utility model discloses a kind of integrated gateway equipment and networking system based on industrial ethernet, it is related to communication technical field.Integrated gateway equipment includes main control module, ethernet transceiver chip, switch chip, fiber interface, RS485 interface and RJ45 interface, wherein, RS485 interface is connected with switch chip, switch chip is connected with main control module, RJ45 interface is connected with main control module, main control module is connected with ethernet transceiver chip by switch chip, ethernet transceiver chip is connected with fiber interface.This scheme carries out data acquisition by RS485 interface, obtains the first interface data based on fire alarm protocol, and then, switch chip forwards main control module to carry out protocol conversion and encryption, obtains the encrypted data based on cloud platform protocol, finally, ethernet transceiver chip converts the encrypted data into optical signal information, and carries out data transmission through fiber interface, which can meet the comprehensive performance requirement of large-scale scene.

Description

Technical Field

[0001] The utility model relates to the field of communication technology, in particular to an integrated gateway device and networking system based on industrial Ethernet. Background Art

[0002] The integrated gateway device of a fire alarm system is a network device used to connect fire alarm controllers, detectors, alarm buttons and other devices, and realize data transmission, monitoring and management. It plays a core role in the fire alarm system, is responsible for summarizing and processing the fire information collected by field devices, and transmits the information to the monitoring center or remote platform through the network. The main functions of the integrated gateway device include data collection and transmission, protocol conversion and compatibility, remote monitoring and alarm, device management and linkage control, intelligence and scalability, etc.

[0003] With the acceleration of urbanization and the increasingly strict fire protection regulations, the market size of industrial fire alarm systems continues to grow. Especially in key fire prevention fields such as petroleum, chemical industry, metallurgy and electric power, the demand for high-performance fire alarm systems in large scenarios such as commercial buildings, high-rise residential buildings, schools, hospitals and other places is increasing, which puts forward higher requirements for the intelligence and networking of the system.

[0004] Current fire alarm systems mostly adopt communication methods such as CAN bus or RS-485, which have obvious deficiencies in transmission distance and anti-interference capability. For example, the CAN bus cannot transmit data losslessly when the communication distance exceeds 10 kilometers, and is vulnerable to electromagnetic interference, making it difficult to meet the fire alarm data transmission requirements of large industrial sites or long-distance areas.

[0005] Moreover, the number of networked gateway devices in the fire alarm system is usually limited, which cannot meet the demand for networking a large number of controllers in places such as large commercial buildings, rail transit, and airports, and limits the coverage range and monitoring capability of the system.

[0006] Some gateway devices also lack effective encryption measures in the process of data transmission and storage, which easily leads to data theft or tampering, has potential safety hazards, and cannot guarantee the security and integrity of fire alarm data.

[0007] In addition, fire alarm devices from different manufacturers may adopt different communication protocols. Current gateway devices have insufficient capability in protocol conversion, and it is difficult to achieve seamless connection between devices with different protocols, resulting in high difficulty in system integration, and being unable to fully compatible with old fire alarm devices (such as RS485 detectors) and emerging intelligent devices (such as LoRa sensors). Contents of the Utility Model

[0008] To address at least one of the aforementioned technical problems, this utility model proposes an integrated gateway device and networking system based on industrial Ethernet, aiming to simultaneously improve gateway protocol compatibility, data security, communication distance capability, and scalability, thereby meeting the comprehensive performance requirements of large-scale scenarios.

[0009] To achieve the above objectives, one aspect of this utility model provides an integrated gateway device based on industrial Ethernet, characterized in that it includes a main control module, an Ethernet transceiver chip, a switch chip, an optical fiber interface, an RS485 interface, and an RJ45 interface, wherein the RS485 interface is connected to the switch chip, the switch chip is connected to the main control module, the RJ45 interface is connected to the main control module, the main control module is connected to the Ethernet transceiver chip through the switch chip, and the Ethernet transceiver chip is connected to the optical fiber interface; The RS485 interface is used to connect to multiple fire alarm devices within a first range via shielded twisted-pair cable to collect data and obtain first interface data based on the fire alarm protocol. The RJ45 interface is used to connect to the fire alarm control panel via an Ethernet cable for data transmission. The switch chip is used to receive the data from the first interface and perform data aggregation and exchange, and forward the data from the first interface to the main control module; The main control module is used to receive the data from the first interface, perform protocol conversion and encryption, obtain encrypted data based on the cloud platform protocol, and forward it to the switch chip; The switch chip is also used to receive the encrypted data and perform data aggregation and exchange, and forward the encrypted data to the Ethernet transceiver chip; The Ethernet transceiver chip is used to convert the encrypted data from electrical signals to optical signals and forward them to the optical fiber interface; The optical fiber interface is used to receive the optical signal information and transmit data through an optical fiber connection to a remote terminal or a fire alarm device within a second range.

[0010] In some embodiments, the main control module includes a first protocol conversion circuit, a second protocol conversion circuit, and an encryption circuit. The input terminal of the first protocol conversion circuit is connected to the switch chip, the output terminal of the first protocol conversion circuit is connected to the input terminal of the second protocol conversion circuit, the output terminal of the second protocol conversion circuit is connected to the input terminal of the encryption circuit, and the output terminal of the encryption circuit is connected to the Ethernet transceiver chip through the switch chip. The first protocol conversion circuit is used to convert the first interface data based on the fire alarm protocol into first conversion protocol data based on the industrial communication protocol; The second protocol conversion circuit is used to convert the first conversion protocol data based on the industrial communication protocol into the second conversion protocol data based on the cloud platform protocol; The encryption circuit is used to perform symmetric encryption on the second conversion protocol data based on the cloud platform protocol to obtain encrypted data based on the cloud platform protocol.

[0011] In some embodiments, the main control module uses a FETMX6UL-C core board or an STM32MP157 core board.

[0012] In some embodiments, the switch chip is an RTL8367S chip.

[0013] In some embodiments, the Ethernet transceiver chip is an RTL8211FS chip.

[0014] In some embodiments, the Ethernet transceiver chip is configured as a fiber-to-UTP media converter.

[0015] In some embodiments, the integrated gateway device further includes a wireless communication module for transmitting data with a remote terminal.

[0016] In some embodiments, the integrated gateway device further includes a power management module, which is connected to the main control module, the switch chip, and the Ethernet transceiver chip.

[0017] In some embodiments, the integrated gateway device further includes a housing, gold-plated contacts, and redundant power supply components; The housing is made of metal to shield against external electromagnetic interference; The gold-plated contacts include a first signal contact for connecting the switch chip and the main control module, and a second signal contact for connecting the switch chip and the Ethernet transceiver chip. The redundant power supply components include several backup power modules and power switching circuits.

[0018] To achieve the above objectives, another aspect of the embodiments of this application proposes a networking system based on industrial Ethernet, the networking system including multiple of the aforementioned integrated gateway devices, the integrated gateway devices being connected in parallel via an Ethernet fiber optic network.

[0019] The embodiments of this application include at least the following beneficial effects: This application provides an integrated gateway device and networking system based on industrial Ethernet. The solution acquires data through the RS485 interface, obtains the first interface data based on the fire alarm protocol, and then the switch chip forwards the main control module to perform protocol conversion and encryption to obtain encrypted data based on the cloud platform protocol. Finally, the Ethernet transceiver chip converts the encrypted data into optical signal information and transmits it through the optical fiber interface, which can meet the comprehensive performance requirements of large-scale scenarios. Attached Figure Description

[0020] Figure 1 This is a structural block diagram of an integrated gateway device based on industrial Ethernet provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a networking system based on industrial Ethernet provided in an embodiment of this application; Figure 3 This is a schematic diagram illustrating the working principle of the integrated gateway device provided in this application embodiment.

[0021] Figure label: Main control module 100, Ethernet transceiver chip 200, switch chip 300, fiber optic interface 400, RS485 interface 500, RJ45 interface 600, power management module 700, housing 800. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar originals or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, the use of terms such as "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Before providing a detailed description of this utility model, some of the terms and concepts involved in this utility model will be explained first. The terms and concepts involved in this utility model are subject to the following interpretations.

[0027] (1) Industrial Ethernet: an efficient and reliable communication technology with advantages such as fast transmission speed, strong anti-interference ability and flexible networking. It can meet the high requirements of fire alarm system for data transmission, support longer transmission distance and higher data transmission rate, and realize more complex network topology.

[0028] (2) PFN: Fire alarm network protocol proprietary to Powerwell, used for communication between fire alarm controllers, detectors and other devices to realize data transmission and device control.

[0029] (3) Modbus protocol: a commonly used industrial communication protocol, including Modbus RTU (Remote Terminal Unit) and Modbus TCP (Transmission Control Protocol), which is used to transmit data between industrial devices and is widely used in the field of industrial automation.

[0030] (4) TSN (Time-Sensitive Networking): A technical standard based on Ethernet that enables precise time synchronization and low-latency, low-jitter data transmission, ensuring the real-time transmission of critical data in industrial control systems.

[0031] This utility model addresses the technical problems existing in related technologies by proposing a comprehensive gateway device based on industrial Ethernet, with reference to... Figure 1 The integrated gateway device includes a main control module 100, an Ethernet transceiver chip 200, a switch chip 300, an optical fiber interface 400, an RS485 interface 500, and an RJ45 interface 600. The RS485 interface is connected to the switch chip, the switch chip is connected to the main control module, the RJ45 interface is connected to the main control module, the main control module is connected to the Ethernet transceiver chip through the switch chip, and the Ethernet transceiver chip is connected to the optical fiber interface.

[0032] The RS485 interface is used to connect to multiple fire alarm devices within a first range via shielded twisted-pair cable to collect data and obtain first interface data based on the fire alarm protocol.

[0033] The RJ45 interface is used to connect to the fire alarm control panel via an Ethernet cable for data transmission.

[0034] The switch chip is used to receive data from the first interface, aggregate and exchange the data, and forward the data from the first interface to the main control module.

[0035] The main control module is used to receive data from the first interface, perform protocol conversion and encryption, obtain encrypted data based on the cloud platform protocol, and forward it to the switch chip.

[0036] The switch chip is also used to receive encrypted data and perform data aggregation and exchange, forwarding the encrypted data to the Ethernet transceiver chip.

[0037] Ethernet transceiver chips are used to convert encrypted data from electrical signals to optical signals and forward them to the fiber optic interface.

[0038] The fiber optic interface is used to receive optical signal information and transmit data through fiber optic connection to a remote terminal or a fire alarm device within a second range.

[0039] In this embodiment, the integrated gateway device adopts a design compatible with high-speed network cards. It connects to the baseboard via a PCIe interface and communicates with the CPU via a network cable. The CPU interface is located on top of the integrated gateway device, flush with the CPU's network port for a clean and aesthetically pleasing wiring configuration. The integrated gateway device uses fiber optic communication with external cards, with the cable exiting at a 45° angle downwards from the front for easy insertion and removal.

[0040] Specifically, the main control module in this embodiment uses the FETMX6UL-C core board. This core board is based on the NXPi.MX6UltraLite Cortex-A7 architecture processor, with a main frequency of 528MHz. It adopts two sets of high-quality imported 80Pin board-to-board connectors and has a unique power management architecture with lower power consumption compared to the ARM9 series core boards. It supports up to 8 UARTs, 2 Ethernets, 2 CANs and other industrial-grade bus interfaces. The core board comes standard with 512MB of commercial-grade RAM and 4GB of eMMC (supporting industrial-grade 256MB RAM and 256MB NandFlash). When paired with the OKMX6UL development board, it has rich peripherals and supports up to 8 UARTs, 2 CANs and other bus interfaces to meet the needs of large-scale scenarios for multi-device access and data processing.

[0041] Alternatively, in another embodiment, the main control module can also use an STM32MP157 core board (800MHz) instead of FETMX6UL-C, which supports more interfaces (such as 4 Ethernet ports), but the cost increases by 15%, making it suitable for ultra-large-scale scenarios.

[0042] The Ethernet transceiver chip used is the RTL8211FS Ethernet transceiver chip, which supports fiber-to-UTP media converter mode or SGMII to RGMII bridging mode. In this embodiment, the RTL8211FS is configured as a fiber-to-UTP media converter to realize the conversion of one fiber to the network port.

[0043] The switch chip uses the RTL8367S Layer 2 managed switch chip, which supports up to 5+2 ports, has a non-blocking switch architecture, supports network management, and can implement complex functions such as ring detection through firmware.

[0044] By combining the RTL8211FS with the RTL8367S, a design with 2 optical ports and 1 electrical port can be realized, improving the flexibility and scalability of data transmission.

[0045] In terms of interface configuration, it is equipped with 4 RS485 interfaces supporting Modbus RTU; 1 RJ45 interface supporting Modbus TCP; 1 CAN interface (reserved) for future connection of corresponding devices; and 2 fiber optic interfaces such as... Figure 1 As shown in Optical fiber1 and Optical fiber2, the fiber optic interface is a bidirectional interface, enabling data input and output. During output, the RTL8211FS chip, configured as a fiber-to-UTP media converter, converts electrical signals into optical signals for transmission via fiber optics. During input, the reverse conversion is performed, ensuring bidirectional data transmission within the fiber optic network. Multiple interfaces meet the communication needs of different devices. Furthermore, the integrated gateway device supports both wired and wireless access methods. Wired methods include Ethernet and RS485, while wireless methods include 4G, LoRa, and WiFi, enhancing the flexibility of device access.

[0046] For example, such as Figure 2 As shown, taking a rail transit scenario as an example, integrated gateway devices are deployed in areas such as rail transit stations and tunnels. Each station is equipped with 1-2 integrated gateway devices, and gateway devices are appropriately set up in tunnels according to distance intervals. For the integrated gateway devices deployed in stations, fire alarm devices within the station are fire alarm devices within the first range, while fire alarm devices in tunnels are fire alarm devices within the second range. It should be noted that the first range refers to the distance range within the maximum communication cabling distance of RS485, which is generally theoretically 1200 meters. The second range refers to the distance range beyond the first range but less than or equal to 20km (actual transmission rate is about 2Mb / s). Fire alarm devices within the second range can be connected by optical fiber.

[0047] The RS485 interface of the integrated gateway device is connected to the RS485 interface of the fire alarm equipment in the station. The fire alarm equipment includes fire alarm controllers, detectors (such as smoke detectors and temperature detectors), alarm buttons, electrical fire monitoring equipment, etc. The device interfaces are connected by shielded twisted-pair cables to collect the operating status and data of the fire alarm equipment. The wire diameter is selected from 12AWG to 18AWG, with an impedance of 120 ohms ± 20% and a total line resistance of approximately 60 ohms to ensure the stability of data transmission and anti-interference capability.

[0048] Through the RS485 interface, the integrated gateway device can collect real-time data from the station, such as smoke concentration detected by smoke detectors, temperature detected by temperature detectors, and operating status of fire alarm controllers.

[0049] The gateway's RJ45 interface connects to the fire alarm control panel via an Ethernet cable to enable high-speed data transmission.

[0050] The gateway's fiber optic interface connects to the fire alarm equipment inside the tunnel via optical fiber, enabling long-distance data transmission.

[0051] Optionally, the gateway's RJ45 interface can be connected to third-party systems such as the rail transit integrated monitoring system and security system via an Ethernet switch, using the standard Ethernet protocol for communication to achieve data sharing and system linkage.

[0052] It is understandable that fire alarm devices from different manufacturers may use different fire alarm protocols. Therefore, the first interface data of different fire alarm protocols are difficult to connect seamlessly, resulting in high system integration difficulty. In order to be compatible with the first interface data based on different fire alarm protocols, the protocol needs to be converted. In this embodiment, the protocol conversion includes two conversions.

[0053] Specifically, the RTL8367S, acting as a switch, connects to various interfaces and other internal chips to receive data transmitted from all interfaces and send it to the FETMX6UL-C core board. The RTL8367S chip and the FETMX6UL-C core board are connected via the MDI media-related interface. The FETMX6UL-C core board has a protocol conversion module that can map detectors, modules, logic areas, fault states, and offline PFN nodes of fire alarm devices to Modbus registers. Third-party systems can monitor these Modbus registers in real time to obtain the alarm status of the fire alarm controller. By mapping the gateway logic area to registers, remote hosts can link devices in the PFN network.

[0054] For example, parameters such as the starting point address, number of points, device type, and event type of the mapping points are set to convert the first interface data based on the PFN fire alarm protocol into the Modbus protocol, an industrial communication protocol.

[0055] Taking setting the starting point address as an example, the format for setting the starting point address is LCMmDn, where "LCM" is a fixed loop prefix, "m" represents the loop number, with a value of 1 to 16; "n" is the point address on the loop, with a value of 1 to 318; and "D" represents the device type of the loop point.

[0056] For example, smoke concentration data from a smoke detector is mapped to address 101 of a Modbus register, temperature data from a temperature detector is mapped to address 102, and fault status from a fire alarm controller is mapped to address 103.

[0057] The specific mapping relationships between device types are shown in the table below: Table 1 Mapping Type Relationship Table

[0058] Furthermore, after converting the first interface data of different fire alarm protocols into a unified industrial communication protocol, considering that the integrated gateway device also needs to communicate with the IoT cloud platform in order to upload fire alarm and other related data, since the protocol used by the cloud platform is different from the industrial communication protocol, a further conversion is required. The data is repackaged according to the data format required by the IoT cloud platform, and the industrial communication protocol is converted into the cloud platform protocol.

[0059] It is understandable that the above configuration parameters can be configured by protocol conversion of the main control module of the integrated gateway device through the gateway configuration tool software (GCT).

[0060] After the protocol conversion is completed, the main control module also needs to perform encryption processing to ensure the security of data transmission and storage. Finally, the encrypted data is transmitted to the Ethernet transceiver chip through the switch chip. The Ethernet transceiver chip collects the data after protocol conversion and encryption processing, and transmits it to the cloud platform and the integrated monitoring system of rail transit through optical fiber to ensure the real-time performance and security of the data.

[0061] In some embodiments, the main control module includes a first protocol conversion circuit, a second protocol conversion circuit, and an encryption circuit. The input terminal of the first protocol conversion circuit is connected to the switch chip, the output terminal of the first protocol conversion circuit is connected to the input terminal of the second protocol conversion circuit, the output terminal of the second protocol conversion circuit is connected to the input terminal of the encryption circuit, and the output terminal of the encryption circuit is connected to the Ethernet transceiver chip through the switch chip.

[0062] The first protocol conversion circuit is used to convert the first interface data based on the fire alarm protocol into the first conversion protocol data based on the industrial communication protocol.

[0063] The second protocol conversion circuit is used to convert the first conversion protocol data based on the industrial communication protocol into the second conversion protocol data based on the cloud platform protocol.

[0064] The encryption circuit is used to perform symmetric encryption on the second conversion protocol data based on the cloud platform protocol to obtain encrypted data based on the cloud platform protocol.

[0065] In this embodiment, refer to Figure 3 The PFN protocol signal is the first interface data based on the fire alarm protocol. The main control module internally uses a first protocol conversion circuit, a second protocol conversion circuit, and an encryption circuit connected in series to realize the protocol conversion and encryption of the PFN protocol signal.

[0066] Specifically, when the switch chip forwards the PFN protocol signal from the RS485 interface to the main control module, the PFN protocol signal first passes through the input terminal of the first protocol conversion circuit. The first protocol conversion circuit maps the PFN protocol signal to the Modbus register data area of ​​the main control module. According to the standard Modbus protocol (clearly marked in the figure) frame format, the extracted information is reassembled into a new data packet, thereby converting it into first conversion protocol data based on the industrial communication protocol and sending it to the second protocol conversion circuit.

[0067] Furthermore, the second protocol conversion circuit receives the first conversion protocol data from the first protocol conversion circuit. For example, it parses the aforementioned Modbus protocol data frame, collects key information such as the detector's alarm status and temperature value, and then repackages this data according to the data format required by the IoT cloud platform (such as JSON format). For instance, the detector temperature data read from the Modbus protocol is converted into JSON format data like {"device_id":"xxx", "temperature":25}, thereby converting the first conversion protocol data into second conversion protocol data based on the cloud platform protocol and sending it to the encryption circuit.

[0068] The encryption circuit enables AES128 encryption and TLS / SSL data encryption, sets encryption keys and certificates, and performs symmetric encryption on the second conversion protocol data based on the cloud platform protocol. This data encryption process meets the system's data security requirements, ensures the security of data transmission and storage, prevents data from being stolen or tampered with, and protects the security and integrity of fire alarm data.

[0069] Alternatively, in another embodiment, the encryption circuit may also use a chip adapted to domestic encryption to encrypt the second conversion protocol data based on the cloud platform protocol using the national cryptographic standard SM4 encryption instead of AES128.

[0070] The output of the encryption circuit is connected to the Ethernet transceiver chip through the switch chip. The Ethernet transceiver chip RTL8211FS and its peripheral circuits together constitute the fiber optic conversion circuit, which converts the encrypted data from electrical signals to optical signals and outputs the information through the optical fiber.

[0071] It should be noted that, Figure 3 The PFN signal is shown to point directly to the fiber optic conversion circuit for simplification. In reality, before the data reaches the fiber optic conversion circuit, it has already undergone protocol conversion (PFN→Modbus→cloud platform protocol) and data encryption.

[0072] In some embodiments, the integrated gateway device further includes a wireless communication module for transmitting data with a remote terminal.

[0073] In this embodiment, the wireless communication module (4G / LoRa / WiFi) of the integrated gateway device is connected to the cloud platform of the remote monitoring center to realize remote data transmission and monitoring.

[0074] For example, to reduce cabling costs, 5G wireless communication can be used to replace some optical fibers, but signal amplifiers need to be added in areas with weak signals, such as tunnels.

[0075] In some embodiments, the integrated gateway device further includes a power management module, which is connected to the main control module, the switch chip, and the Ethernet transceiver chip.

[0076] In this embodiment, refer to Figure 1 The power management module 700 is connected to the main control module, the switch chip, and the Ethernet transceiver chip. Internally, the power management module can convert the single external input voltage into different operating voltages required by each module and chip. For example, it can step down the input 24V voltage to 5V and 3.3V required for the FETMX6UL-C core board to operate, and step down the 2V voltage to 12V. After passing through two step-down circuits, it is reduced to 1.1V and 3.3V respectively, providing 1.1V and 3.3V for the RTL8367S and 3.3V for the RTL8211FS.

[0077] In some embodiments, the integrated gateway device further includes a housing, gold-plated contacts, and redundant power supply components.

[0078] The casing is made of metal to shield against external electromagnetic interference.

[0079] The gold-plated contacts include a first signal contact for connecting the switch chip and the main control module, and a second signal contact for connecting the main control module and the Ethernet transceiver chip.

[0080] The redundant power supply components include several backup power modules and power switching circuits.

[0081] In this embodiment, Figure 1 The housing 800 is the outer shell of the entire integrated gateway device. It is made of metal and is used to shield external electromagnetic interference, allowing the gateway to be used independently when separated from the alarm host.

[0082] Gold-plated contacts are used to plate key signal contacts that connect the core board to other modules, reducing contact resistance and enhancing signal transmission stability. These gold-plated contacts include, but are not limited to, the first signal contact connecting the FETMX6UL-C core board to the RTL8367S, and the second signal contact connecting the RTL8367S to the RTL8211FS.

[0083] Optionally, the gold-plated contacts can be of the immersion gold or gold finger type. In board-to-board and backplane connectors, which are key components for circuit interconnection in electronic devices, the use of immersion gold or gold finger processes for gold-plated contacts balances PCB soldering reliability and connector mating durability, ensuring long-term transmission of the interconnection system.

[0084] In addition, the integrated gateway device also includes a redundant power supply component, which includes multiple power modules, switching circuits, etc., and can be powered by multiple power sources at the same time, thereby improving the reliability of the device's power supply.

[0085] The hardware protection structure, consisting of a metal shielded housing, gold-plated contacts, and redundant power supply components, can effectively improve the anti-interference capability and reliability of integrated gateway devices.

[0086] Reference Figure 2 This utility model also provides a networking system based on industrial Ethernet, which includes multiple integrated gateway devices as described above, and the integrated gateway devices are connected in parallel through an Ethernet fiber optic network.

[0087] In this embodiment, refer to Figure 2 Multiple integrated gateway devices can be connected in parallel via an Ethernet fiber optic network to form a network system. The transmission distance of the fiber optic network system can exceed 10 kilometers, and the anti-interference capability is 50% higher than that of the CAN bus, achieving a breakthrough in communication performance. Moreover, the topology of this network system can support up to 240 controllers connected in parallel via fiber optics at the same time, breaking through the bottleneck of traditional network quantity and meeting the needs of large-scale scenarios for communication distance and number of devices.

[0088] Specifically, in terms of data acquisition and transmission configuration, configure the gateway's data acquisition frequency, such as setting the acquisition frequency of smoke concentration and temperature data to 1 second / time, and the acquisition frequency of device operating status data to 5 seconds / time; set data transmission parameters, such as setting the Ethernet transmission rate to 100Mbps adaptive, and the data transmission rate of the wireless communication module (4G) to automatically adjust according to network conditions.

[0089] For remote monitoring and control configuration, first register the gateway device on the cloud platform and set parameters such as the gateway's IP address and node number; then configure the remote monitoring interface to display real-time data such as the operating status, smoke concentration, and temperature changes of fire alarm devices in stations and tunnels; set remote control permissions, such as allowing administrators to log in to the cloud platform via a mobile app or computer client and perform remote arming / disarming and remote reset operations on fire alarm devices within the authorized scope; configure alarm parameters, such as setting smoke concentration thresholds and temperature thresholds. When the integrated gateway device detects that the collected data, such as smoke concentration exceeding the threshold or temperature exceeding the threshold, it immediately triggers an alarm, and the alarm information is sent to relevant personnel via sound and light.

[0090] In some embodiments, the software architecture can be designed to divide the software process into seven processes based on the functional requirements of the gateway: server, web server, Modbus / tcp / rtu (poll), external clock interface, CRT interface, and cloud interface. These processes work together to achieve functions such as data acquisition, processing, transmission, and control.

[0091] In the data acquisition and processing module, the working status and data of fire-fighting equipment are collected in real time, including smoke concentration, temperature changes, and equipment operating status. The collected data is analyzed and processed in real time. Through built-in intelligent algorithms (such as fault prediction algorithms and equipment health monitoring algorithms), the data is analyzed to realize functions such as fault prediction and equipment health monitoring, and timely detection of equipment abnormalities.

[0092] The remote monitoring and control module allows users to remotely view the operating status of fire-fighting equipment via mobile applications, cloud platforms, or computers. It also supports remote control of fire-fighting equipment, such as remote arming / disarming and remote reset. Furthermore, when an alarm is triggered, it can be linked with audible and visual sirens, electronic maps, video surveillance, and other equipment in the area, enabling managers to understand the alarm situation more intuitively and clearly, make quick judgments, and forward linkage control commands from the wireless controller.

[0093] In summary, this utility model focuses on the conversion and integration of multiple communication protocols in fire alarm systems. It achieves seamless interoperability between different protocols through industrial Ethernet to improve gateway device compatibility and enable compatibility between new and old equipment. Remote monitoring and management of the equipment are achieved through a comprehensive gateway device. The fire alarm system is connected to a cloud platform using industrial Ethernet and fiber optics, enabling real-time data transmission and remote alarm functions, and deeply integrating the fire alarm system with the Internet of Things (IoT). Simultaneously, it focuses on the reliability and security of the fire alarm system, especially in industrial environments, by using industrial Ethernet to achieve automatic transmission and processing of fault data, thereby improving system reliability and response speed.

[0094] The integrated gateway device provided by this utility model is more complete in terms of integration and standards. It adopts multi-sensor fusion technology to fuse data from multiple sensors such as smoke, temperature, and flame, greatly improving the accuracy and reliability of fire detection. It extensively uses wireless communication technologies such as ZigBee, LoRa, and NB-IoT, which not only facilitates device layout and flexible installation but also enables large-area coverage. In large commercial buildings and industrial parks, wireless communication technology can connect various dispersed fire alarm devices into a unified system.

[0095] In terms of system networking design, an Ethernet fiber optic network is adopted, supporting a network of up to 240 controllers, thus solving the technical bottleneck of the number of controllers in the network. The fiber optic network enables long-distance, high-speed data transmission with strong anti-interference capabilities. At the same time, it supports integration with other systems (such as security systems, building automation systems, etc.) to achieve information sharing and collaborative work, improve the overall system's intelligence level and emergency response capabilities, and can be widely used in large-scale scenarios such as rail transit, airports, and commercial complexes.

[0096] The embodiments described herein are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Those skilled in the art will understand that, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and all such equivalent modifications or substitutions are included within the scope defined by the claims of this utility model.

[0097] The terms “comprising” and “having”, and any variations thereof, in the specification and accompanying drawings of this application are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product, or apparatus.

[0098] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0099] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A comprehensive gateway device based on industrial Ethernet, characterized in that, It includes a main control module, an Ethernet transceiver chip, a switch chip, an optical fiber interface, an RS485 interface, and an RJ45 interface. The RS485 interface is connected to the switch chip, the switch chip is connected to the main control module, the RJ45 interface is connected to the main control module, the main control module is connected to the Ethernet transceiver chip through the switch chip, and the Ethernet transceiver chip is connected to the optical fiber interface. The RS485 interface is used to connect to multiple fire alarm devices within a first range via shielded twisted-pair cable to collect data and obtain first interface data based on the fire alarm protocol. The RJ45 interface is used to connect to the fire alarm control panel via an Ethernet cable for data transmission. The switch chip is used to receive the data from the first interface and perform data aggregation and exchange, and forward the data from the first interface to the main control module; The main control module is used to receive the data from the first interface, perform protocol conversion and encryption, obtain encrypted data based on the cloud platform protocol, and forward it to the switch chip; The switch chip is also used to receive the encrypted data and perform data aggregation and exchange, and forward the encrypted data to the Ethernet transceiver chip; The Ethernet transceiver chip is used to convert the encrypted data from electrical signals to optical signals and forward them to the optical fiber interface; The optical fiber interface is used to receive the optical signal information and transmit data through an optical fiber connection to a remote terminal or a fire alarm device within a second range.

2. The integrated gateway device according to claim 1, characterized in that, The main control module includes a first protocol conversion circuit, a second protocol conversion circuit, and an encryption circuit. The input terminal of the first protocol conversion circuit is connected to the switch chip, the output terminal of the first protocol conversion circuit is connected to the input terminal of the second protocol conversion circuit, the output terminal of the second protocol conversion circuit is connected to the input terminal of the encryption circuit, and the output terminal of the encryption circuit is connected to the Ethernet transceiver chip through the switch chip. The first protocol conversion circuit is used to convert the first interface data based on the fire alarm protocol into first conversion protocol data based on the industrial communication protocol; The second protocol conversion circuit is used to convert the first conversion protocol data based on the industrial communication protocol into the second conversion protocol data based on the cloud platform protocol; The encryption circuit is used to perform symmetric encryption on the second conversion protocol data based on the cloud platform protocol to obtain encrypted data based on the cloud platform protocol.

3. The integrated gateway device according to claim 1, characterized in that, The main control module uses either the FETMX6UL-C core board or the STM32MP157 core board.

4. The integrated gateway device according to claim 1, characterized in that, The switch chip used is the RTL8367S chip.

5. The integrated gateway device according to claim 1, characterized in that, The Ethernet transceiver chip used is the RTL8211FS chip.

6. The integrated gateway device according to claim 5, characterized in that, The Ethernet transceiver chip is configured as a fiber-to-UTP media converter.

7. The integrated gateway device according to claim 1, characterized in that, The integrated gateway device also includes a wireless communication module, which is used to transmit data with a remote terminal.

8. The integrated gateway device according to claim 1, characterized in that, The integrated gateway device also includes a power management module, which is connected to the main control module, the switch chip, and the Ethernet transceiver chip.

9. The integrated gateway device according to claim 1, characterized in that, The integrated gateway device also includes a housing, gold-plated contacts, and redundant power supply components; The housing is made of metal to shield against external electromagnetic interference; The gold-plated contacts include a first signal contact for connecting the switch chip and the main control module, and a second signal contact for connecting the switch chip and the Ethernet transceiver chip. The redundant power supply components include several backup power modules and power switching circuits.

10. A networking system based on industrial Ethernet, characterized in that, The networking system includes multiple integrated gateway devices as described in claim 1, which are connected in parallel via an Ethernet fiber optic network.

Images