Mining gateway capable of switching data transmission modes

Abstract

The utility model discloses a mining gateway capable of switching data transmission modes, which is applied to the field of mine data transmission and aims to solve the problem that cables are difficult to lay and install under a mine with a limited space in the existing thin seam coal mine. The utility model relates to a mining gateway capable of switching wireless transmission modes. The mining gateway comprises a power supply board, a multimode network switching board and a wireless network control board, wherein the wireless network control panel comprises a main control unit, a NearLink unit, a ZigBee unit, a Lora unit, a gateway manager and an LCD (Liquid Crystal Display) screen. The mining gateway capable of switching the wireless transmission modes can support various wireless transmission modes and wired transmission modes. In practical application, a gateway management mode can be set according to use requirements, combined switching of transmission modes is carried out, self-networking is rapidly carried out, and the gateway is a reliable data transmission gateway under a mine.

Description

Technical Field

[0001] This utility model belongs to the field of mining data transmission, and specifically relates to a mining gateway device. Background Technology

[0002] For thin coal seams, with a thickness of only 1.2 meters, space is limited compared to other medium-thick coal seams (2-2.5 meters). This necessitates a significant reduction in the size of electro-hydraulic control mining equipment. For high-capacity data transmission from multiple devices, existing technologies achieve this through underground cable laying. However, for thin coal seams with limited operating space, underground cable laying and installation in confined spaces are challenging, making it difficult to guarantee the stability and reliability of data transmission. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a mining gateway with switchable data transmission mode. The gateway can communicate with different devices through wired and wireless means, and data transmission between devices with different communication connections can be realized through the gateway.

[0004] The technical solution adopted by this utility model is: a mining gateway with switchable data transmission mode, comprising: a power board, a multi-mode network switching board and a wireless network control board;

[0005] The power supply board is connected to an external DC power supply; the power supply board is connected to the multimode network switching board and the wireless network control board respectively, and is used to supply power to the multimode network switching board and the wireless network control board;

[0006] The multimode network switching board includes three external network interfaces: a 100M / 1000M Ethernet interface, a 100M / 1000M vehicle Ethernet interface, and a 1000M / 10000M fiber optic interface.

[0007] The wireless network control board includes a main control unit, a NearLink unit, a ZigBee unit, a LoRa unit, and a gateway management unit. The first serial port of the main control unit MCU 12 communicates with the NearLink unit 3. The second serial port of the main control unit MCU 12 is connected to the ZigBee unit 8. The third serial port of the main control unit MCU 12 is connected to the LoRa unit 9. The RJ45 interface of the main control unit MCU 12 is connected to the gateway management unit 11. The main control unit MCU 12 is also connected to the LCD display 10. The main control unit MCU 12 is connected to the multimode network switching board via Ethernet.

[0008] The beneficial effects of this utility model are as follows: The gateway of this utility model can independently realize the mutual conversion of wired signals through a multi-mode network switching board, providing support for data transmission from the vehicle Ethernet interface to the fiber optic interface, and data transmission from the Ethernet interface to the vehicle Ethernet interface; it can also combine and convert transmission modes through the main control unit, such as mutual conversion between wireless signals and mutual conversion between wired and wireless signals; the advantages of this utility model include:

[0009] 1) Coexistence of multiple wireless transmission networks;

[0010] 2) Multiple wired Ethernet methods coexist;

[0011] 3) The gateway can convert data between different wireless networks;

[0012] 4) The gateway can convert data between different wired networks;

[0013] 5) The gateway enables data conversion between different wireless and wired networks;

[0014] 6) Wired and wireless network power supplies are managed separately. If one power supply fails, it will not affect the operation of other networks. Attached Figure Description

[0015] Figure 1 Design structure diagram for mining gateway;

[0016] Figure 2 Power-on flowchart for mining gateway system;

[0017] Figure 3 Flowchart of data reception for each channel of a mining gateway;

[0018] Figure 4 Flowchart of data transmission process for each channel of the mining gateway;

[0019] Figure 5 This is the circuit diagram for power processing unit 2. Detailed Implementation

[0020] To facilitate understanding of the technical content of this utility model by those skilled in the art, the content of this utility model will be further explained below with reference to the accompanying drawings.

[0021] This utility model provides a mining gateway with switchable wireless transmission modes, such as... Figure 1 As shown, the device specifically includes: a power supply board 1, a multimode network switching board 6, and a wireless network control board 13.

[0022] The power processing unit 2 of the power board 1 is divided into two independent power control units, namely the first power control unit 5 and the second power control unit 4. The first power control unit 5 supplies power to the multimode network switching board 6, and the second power control unit 4 supplies power to the wireless network control board 13.

[0023] The power board 1 includes a power processing unit 2. An external DC power supply (voltage range: 9V~24V) is input to the power processing unit 2 and converted into two independent parallel power control units. The first power control unit 5 independently powers the multimode network switching unit 6. The second power control unit 4 independently powers the wireless network control board 13.

[0024] like Figure 5 As shown, the first power control unit 5 and the second power control unit 4 of this utility model use TPS54302D chips for voltage conversion. Specifically, after the system is powered by 12V DC, the 12V power is stepped down by the TPS54302D chip and divided into two 5V DC power outputs. The schematic diagrams of the two power step-down circuits are the same, and the TPS54302D chip is used for voltage conversion. This chip can provide a maximum current of 3A, which is sufficient to supply the subsequent circuits. The 12V DC power supply is fed into the TPS54302D chip via two filter capacitors C111 and C112. Pin 3 is the power input terminal, and pin 5 is the enable terminal. A voltage divider between resistors R196 and R198 provides an effective enable voltage to pin 5, enabling the chip to operate normally. Pin 1 is the GND terminal and must be effectively connected to GND. Pin 2 is the voltage output terminal, and pin 6 provides input to the high-frequency gate drive circuit. Therefore, a 0.1μF capacitor C110 is connected between BOOT and pin 2. After the output from pin 2, an LC filter circuit consisting of an inductor L4 and capacitors C113 and C114 effectively filters the ripple of the output voltage. Pin 4 is the voltage adjustment terminal. By adjusting the values ​​of resistors R199 and R200, the output voltage can be clamped to 5V.

[0025] In practical applications, the main control unit MCU 12 can read the power parameters of the first power control unit 5 and the second power control unit 6 in real time through the ADC, and determine whether there are abnormalities such as overvoltage or overcurrent in each power supply based on the parameters. When an abnormality is detected in a power supply, that power supply can be shut down to reduce the damage to the equipment.

[0026] The wireless network control board 13 includes a main control unit MCU 12, a NearLink unit 3, a ZigBee unit 8, a LoRa unit 9, a gateway management unit 11, and an LCD display 10. The second power control unit 4 has two power supply paths: one for the main control unit MCU 12 and the other for all other units on the wireless network control board 13 except for the main control unit MCU 12. The first serial port of the main control unit MCU 12 communicates with the NearLink unit 3; the second serial port of the main control unit MCU 12 connects to the ZigBee unit 8; and the third serial port of the main control unit MCU 12 connects to the LoRa unit 9. The gateway management unit and the LCD display unit serve as the human-machine interface units of the wireless network control board 13. The RJ45 interface of the main control unit MCU 12 connects to the gateway management unit 11; the main control unit MCU 12 is also connected to the LCD display 10. The main control unit MCU 12 uses the imx6ull chip.

[0027] The NearLink unit 3 is externally connected to a high-gain passive antenna operating at 2.4GHz / 5GHz / 5.8GHz, capable of handling NearLink, Bluetooth, and Wi-Fi wireless communication data. In mines, NearLink units can be bridged to increase the coverage and transmission distance of the NearLink network, achieving long-distance wireless network data transmission. The ZigBee unit 8 is externally connected to a high-gain passive antenna operating at 2.4GHz; the Lora unit 9 is externally connected to a high-gain passive antenna operating at 470MHz. The ZigBee and Lora network units can self-contained as a mesh gateway device, i.e., a mesh router for the ZigBee and Lora networks, achieving short-distance wireless network data transmission.

[0028] The wireless network control board 13 can receive wireless data and output it via another wireless transmission method, achieving reliable conversion and transmission of data from different wireless networks. For example, data received by the NearLink unit can be output by the ZigBee unit.

[0029] The multimode network switching unit 6 contains an Ethernet channel, through which it connects to the main control unit MCU12. The multimode network switching unit 6 includes three external channels: three 100M / 1000M Ethernet communication interfaces, four 100M / 1000M vehicle-mounted Ethernet communication interfaces, and four fiber optic interfaces, one 100M / 1000M and one 1000M / 10000M. It can be used as a switch.

[0030] The main control unit MCU 12 can be connected to the first power control unit 5 and the second power control unit 4 through the IO port. The main control unit MCU 12 collects the parameters of the first power control unit 5 and the second power control unit 4 through the ADC, and uses the parameters to determine whether the power control unit is in an abnormal state such as overvoltage or undervoltage.

[0031] Gateway management is mainly used to save the combination of wired and wireless transmission methods, set and modify transmission method parameters, and perform local upgrades.

[0032] The LCD screen primarily displays the gateway's main parameters and provides real-time data transmission and reception information.

[0033] The main control unit MCU 12 adaptively combines and switches network signals of different interface modes for transmission. The first combination switching mode is as follows: After receiving wireless data of different frequency bands, the wireless network control board 13 processes the data through the main control unit MCU 12 and can forward it via Ethernet to the wired interface of the multimode network switching unit 6 for transmission to other devices. Conversely, it can also convert wired data to wireless data and send it to wireless devices.

[0034] The MCU 12 of this invention processes network signals (such as wireless signals) with different interface methods and forwards them to the wired interface of the multimode network switching unit via Ethernet, thereby transmitting them to other devices. The specific implementation process is as follows:

[0035] 1. Wireless network signal reception:

[0036] The wireless network control board receives wireless data from a specific wireless frequency band (such as 2.4 GHz or 5 GHz). This data may originate from wireless sensors, mobile devices, or other wireless equipment located underground.

[0037] 2. Data Decoding:

[0038] After receiving the raw wireless data sent by the wireless network control board, the main control unit MCU 12 first decodes this data. The decoding process converts the information in the wireless signal into digital signals or data packets that the MCU can understand and process.

[0039] 3. Data Processing:

[0040] The MCU 12 processes the decoded data. This may include steps such as data verification, formatting, encryption / decryption (if the data is encrypted), and compression / decompression (if necessary). Furthermore, the MCU may perform further calculations and analysis on the data based on the gateway configuration and application requirements.

[0041] 4. Data encapsulation:

[0042] The processed data needs to be encapsulated into Ethernet frame format for transmission over Ethernet. MCU 12 packages the data into frames according to the Ethernet protocol and adds the necessary frame headers, trailers, and checksum information.

[0043] 5. Ethernet forwarding:

[0044] The encapsulated Ethernet frames are sent to the multimode network switching unit 6. The multimode network switching unit is a switching device capable of handling multiple network interfaces; it can forward Ethernet frames from the MCU to its wired interface.

[0045] 6. Wired transmission:

[0046] Encapsulated Ethernet frames are transmitted to other devices via the wired interfaces (such as Gigabit Ethernet interfaces, fiber optic interfaces, etc.) of the multimode network switching unit. These devices may be underground computers, servers, workstations, or other devices that need to receive this data.

[0047] 7. Receiver processing:

[0048] After receiving an Ethernet frame, the receiving device performs the reverse processing steps compared to the sending end, including frame parsing, data decoding, and verification. Ultimately, the original data is recovered for use by the receiving device or for further processing.

[0049] In this embodiment, the combined switching transmission of wireless Zigbee and LoRa involves the following data frame processing procedure:

[0050] When Zigbee wireless unit 8 receives data, it transmits the data to the main control unit MCU12 for parsing. The main control unit MCU first performs protocol parsing on the data to determine whether it is a standard protocol or a non-standard protocol. For non-standard protocols, it reads the gateway management conversion channel parameters for data transmission. When the channel conversion parameters indicate that Zigbee and LoRa are transmitting to each other, the main control unit MCU12 repackages the parsed data into LoRa format data and transmits it to LoRa unit 9 for transmission, thus achieving the data transmission function between the wireless Zigbee channel and the LoRa channel. When the main control unit MCU12 determines that the protocol data from Zigbee unit 8 is a standard protocol, it reads the source address and destination address in the standard protocol to determine whether to switch transmission channels. When the destination address is the LoRa channel address, the main control unit MCU12 repackages the parsed data into LoRa format data and transmits it to LoRa unit 9 for transmission, thus achieving the data transmission function between the wireless Zigbee channel and the LoRa channel.

[0051] This embodiment also provides a combined switching transmission implementation method between the wired interfaces of the multimode network switching unit 6. For example, data received by the vehicle Ethernet can be transmitted via Ethernet to the main control unit MCU 12 for parsing and then forwarded to the fiber optic network; the data received by the vehicle Ethernet includes video data from the working surface, control data, etc. The specific switching transmission process is as follows:

[0052] Data reception: The onboard Ethernet interface first receives data from various systems and sensors on the work surface. This data is typically transmitted in the form of data packets, each containing information about its source, content, destination, etc.

[0053] Data parsing: When data arrives at the wired interface of the multimode network switching unit 6, these data packets are passed to the main control unit MCU 12 for processing. MCU 12 is the central processing unit, responsible for parsing data packets and extracting useful information. The parsing process may involve steps such as identifying data packet headers, verifying data integrity, and decoding data content.

[0054] Data Processing: After parsing the data, the MCU 12 may need to perform further processing. This includes data conversion (such as converting analog signals to digital signals), data compression (to reduce the bandwidth required for transmission), and data encryption (to ensure data security). In addition, the MCU 12 may filter or select data according to preset rules or algorithms, retaining only data that meets specific conditions.

[0055] Data forwarding: Once data processing is complete, MCU 12 forwards the data to the fiber optic network. This typically involves re-encapsulating the data into a packet format suitable for transmission over the fiber optic network and adding necessary routing and forwarding information. These packets are then sent to the fiber optic network via the fiber optic interface of the multimode network switching unit 6.

[0056] Fiber optic network transmission: In fiber optic networks, data packets are transmitted at high speed and over long distances via fiber optic cables. Fiber optic networks typically offer higher bandwidth and lower transmission latency, making them suitable for applications requiring high-speed data transmission and real-time response.

[0057] The data in the multimode network switching unit 6 is Ethernet data, which is transmitted using the Ethernet protocol. After receiving the Ethernet data, the multimode network switching unit parses the physical layer source address and destination address in the data. If the destination address is an Ethernet channel address, the data is directly encapsulated and transmitted. If the destination address is not an Ethernet address, the data is transmitted to the main control unit MCU12 for secondary parsing. The parsing process is similar to the "Wireless Zigbee and LoRa Data Frame Processing Process" in the introduction, thereby achieving the purpose of data transmission conversion.

[0058] This utility model allows for the combination and switching of network signals using different interface methods for transmission, offering the following advantages:

[0059] 1. Supports multiple networks:

[0060] Through the conversion function of the main control unit MCU 12, the mining gateway can support multiple wireless network protocols, such as ZigBee, LoRa, and WiFi. This enables the gateway to transmit data in different network environments, improving the system's flexibility and adaptability.

[0061] 2. Data integrity:

[0062] During data conversion, MCU 12 ensures data integrity and accuracy. By adding verification information and using error detection and correction mechanisms, MCU 12 can detect and correct errors that may occur during transmission, ensuring reliable data transmission.

[0063] 3. High-efficiency data transmission:

[0064] The main control unit MCU 12 can receive, process, and forward data in real time, ensuring fast and efficient data transmission between different networks. This is crucial for applications requiring real-time monitoring and response in underground mining environments.

[0065] 4. Network Fault Recovery:

[0066] If a wireless network fails or has a weak signal, the MCU 12 can automatically switch to another available network for data transmission. This network failure recovery capability ensures the continuity and reliability of data transmission.

[0067] 5. Security:

[0068] During data transmission, the MCU 12 can employ security measures such as encryption and authentication to protect data security. This prevents unauthorized access and data leakage, ensuring data security during transmission.

[0069] NearLink units can be bridged to increase the coverage and transmission distance of the NearLink network, enabling long-distance data transmission over the same wireless network. Zigbee and LoRa network units can form a mesh gateway device, acting as a mesh router for Zigbee and LoRa networks during long-distance transmission, achieving data transmission over the same wireless network.

[0070] The gateway management unit and LCD display unit primarily manage the device's data transmission methods, such as setting device parameters (e.g., wireless channel parameters, wired network parameters, etc.) and performing local upgrades. The LCD display unit mainly displays the device's operating status in real time (device settings, voltage and current detection values, abnormal device status, etc.).

[0071] The gateway of this utility model can be set to a gateway management mode according to usage requirements, perform combination switching of transmission modes, and quickly form a self-organizing network, making it a reliable data transmission gateway in the mine.

[0072] The multimode network switch board 6 and the wireless network control board 13 of this invention are each powered independently, which has the following advantages: First, power fluctuations have a significant impact on the data transmission of multimode network switches, and may lead to data distortion. Using two power supplies can reduce the impact of power fluctuations on the data transmission of multimode network switches. Second, multimode network switches consume a lot of power, and using independent power supplies helps to reduce the impact of power supply heat generation on signal stability. Third, the multimode network switch board 6 processes analog signals, while the wireless network control board 13 processes digital signals; independent power supplies are beneficial to signal stability.

[0073] The multimode network switch board 6 has three external interfaces, enabling mutual conversion of wired signals between different interfaces without the main control unit (MCU). Examples include transmitting data from the vehicle Ethernet interface to the fiber optic interface, and transmitting data from the Ethernet interface to the vehicle Ethernet interface.

[0074] like Figure 2 The diagram shown is a flowchart of the power-on process for a mining gateway system; the power-on process for the mining gateway system is as follows:

[0075] 1. After the mining gateway system is powered on, the gateway management begins parameter initialization and starts the main control unit (MCU) to register and start the task. The MCU then checks the power parameters of power control module 1 and power controller module 2 (checking for any abnormalities). If normal, power is supplied to lines ① and ③. If the MCU detects abnormal power parameters in power control module 1 and power controller module 2, power is not supplied to lines ① and ③. In this case, if the MCU detects that the unit supplying power to line ① or ③ is not powered, it continues to check the power supply of line ① or ③ and waits for it to recover before starting to supply power.

[0076] 2. Due to the long lines and complex environment, the power supply system in mines is unstable and prone to circuit abnormalities. The main control unit (MCU) periodically checks the power parameters. If the parameters are abnormal, it will trigger the corresponding protection mechanism, shut down the power, and wait for the power to return to normal.

[0077] Receive and transmit channel description

[0078] The main control unit (MCU) has four data reception channels: NearLink channel, ZigBee channel, LoRa channel, and Ethernet channel. The NearLink channel is the communication channel between the NearLink unit and the MCU; the ZigBee channel is the communication channel between the ZigBee unit and the MCU; the LoRa channel is the communication channel between the LoRa unit and the MCU; and the Ethernet channel is the communication channel between the multi-mode network switching unit and the MCU.

[0079] like Figure 3 The diagram shows the data reception flowchart for each channel of the mining gateway; the data reception process is as follows:

[0080] 1. After the mining gateway system powers on normally, it will check the data reception status of each channel. If the unit does not receive data, it will continue to wait.

[0081] 2. After the mining gateway system is powered on normally, if a certain channel receives data, it will start to determine whether the data is an error. If the data is an error, it will be discarded.

[0082] If the received data is normal, the data is loaded into the receive buffer queue.

[0083] 3. Detect the data source in the receive buffer queue, i.e., which channel (NearLink channel, ZigBee channel, LoRa channel, and Ethernet channel) is sending data to the main control unit MCU; after parsing and processing according to each channel protocol, load the data into the transmit buffer queue and initiate the data transmission command. The channel protocol includes the data source and data destination, which can be modified according to actual conditions, including the following situations:

[0084] 1. Data source (sender) modified:

[0085] Suppose that the firmware of a sensor node (e.g., sensor number SN001) in a ZigBee sensor network is upgraded, and the upgraded firmware uses a new device ID (e.g., from SN001 to SN001_NEW). Then, in the channel protocol, the data source field when this sensor sends data needs to be updated from "SN001" to "SN001_NEW".

[0086] In NearLink channels, the data source may be a specific device ID or device type. For example, the original protocol may specify the data source as "DeviceA", but in actual applications, it may need to be modified to "Sensor123" to match a specific device.

[0087] 2. Data destination (recipient) modification:

[0088] Suppose a gateway in a LoRa network was originally responsible for forwarding all received data to a central server (Server A). However, due to some reason (such as server migration or maintenance), it now needs to forward the data to a new server (Server B). In this case, in the channel protocol, all data destination fields pointing to Server A need to be updated to the address or identifier of Server B.

[0089] In an Ethernet channel, the data destination may be an IP address and a port number. When data needs to be sent to different servers or applications, these IP addresses and port numbers need to be changed accordingly.

[0090] 3. Multi-target forwarding:

[0091] In some cases, data sent by one device may need to be received by multiple devices or systems. In this case, multiple data destinations can be configured in the channel protocol, or data destinations can be dynamically added or removed according to application requirements.

[0092] 4. Inter-channel data forwarding:

[0093] If a device supports multiple communication methods (such as ZigBee and LoRa), and needs to forward received ZigBee data through a LoRa channel, then the channel protocol needs to specify the specific rules for forwarding data from the ZigBee channel to the LoRa channel.

[0094] 5. Custom fields:

[0095] In addition to the standard data source and data destination fields, the channel protocol may also include some custom fields to describe other attributes or contextual information of the data. There may also be other related fields, such as data priority and data type. These custom fields can also be modified or extended according to the actual situation.

[0096] In summary, modifications to the data source and destination in the channel protocol are made based on actual application scenarios and system requirements, with the aim of ensuring correct data transmission and efficient processing.

[0097] Figure 4 This is a flowchart of the data transmission process for each channel of the mining gateway; the data transmission process is as follows:

[0098] 1. When the main control unit (MCU) detects a data transmission command, it immediately extracts data from the data transmission buffer queue. The extracted data is parsed to determine the transmission channel (NearLink channel, ZigBee channel, LoRa channel, and Ethernet channel) and sent to that channel, where data encapsulation and transmission take place.

[0099] 2. After a channel receives the data to be sent, it encapsulates the data for transmission. If the transmission is successful, it continues to wait for the next transmission.

[0100] 3. There are two reasons for sending failure: one is that the sending is too busy, causing a timeout; the other is that there is a problem with the sending channel, which directly leads to sending failure.

[0101] If a busy timeout causes a transmission failure, the transmission is retransmitted and the timeout count is incremented. When the timeout count exceeds the threshold, the transmission is abandoned.

[0102] If transmission fails, continue sending and keep counting transmission failures. When the transmission failure count exceeds the threshold, abandon the transmission.

[0103] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Various modifications and variations can be made to this invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of the claims of this invention.

Claims

1. A mining gateway with switchable data transmission mode, characterized in that, include: Power supply board, multimode network switch board, and wireless network control board; The power supply board is connected to an external DC power supply; the power supply board is connected to the multimode network switching board and the wireless network control board respectively, and is used to supply power to the multimode network switching board and the wireless network control board; The multimode network switching board includes three external network interfaces: a 100M / 1000M Ethernet interface, a 100M / 1000M vehicle Ethernet interface, and a 1000M / 10000M fiber optic interface. The wireless network control board includes a main control unit (MCU), a NearLink unit, a ZigBee unit, a LoRa unit, and a gateway management unit. The first serial port of the main control unit (MCU) is connected to the NearLink unit; the second serial port of the main control unit (MCU) is connected to the ZigBee unit; the third serial port of the main control unit (MCU) is connected to the LoRa unit; the RJ45 interface of the main control unit (MCU) is connected to the gateway management unit; the main control unit (MCU) is also connected to an LCD display screen; and the main control unit (MCU) is connected to a multimode network switching board via Ethernet.

2. A mining gateway with switchable data transmission mode according to claim 1, characterized in that, The power board includes a first power control unit and a second power control unit; the first power control unit is connected to the multimode network switching board, and the second power control unit is connected to the wireless network control board.

3. A mining gateway with switchable data transmission mode according to claim 2, characterized in that, The NearLink, ZigBee, and Lora units are each connected to a high-gain passive antenna. The high-gain passive antenna connected to the NearLink unit operates in the 2.4GHz / 5GHz / 5.8GHz frequency band; the high-gain passive antenna connected to the ZigBee unit operates in the 2.4GHz frequency band; and the high-gain passive antenna connected to the Lora unit operates at 470MHz.

4. A mining gateway with switchable data transmission mode according to claim 2, characterized in that, The main control unit MCU uses the chip model imx6ull.

5. A mining gateway with switchable data transmission mode according to claim 2, characterized in that, The first power control unit and the second power control unit have the same structure, both including: a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, an inductor, and a voltage conversion chip; The first terminal of the first capacitor is connected to an external DC current, and the first terminal of the first capacitor is also connected to the first terminal of the second capacitor; the second terminal of the first capacitor is grounded; the first terminal of the first capacitor is also connected to the third pin of the voltage conversion chip; the first terminal of the first resistor is connected to the first terminal of the first capacitor, the second terminal of the first resistor is connected to the first terminal of the second resistor, the second terminal of the second resistor is grounded, the first terminal of the second resistor is connected to the fifth pin of the voltage conversion chip, the first pin of the voltage conversion chip is grounded, the sixth pin of the voltage conversion chip is connected to the first terminal of the third capacitor, the second terminal of the third capacitor is connected to the second pin of the voltage conversion chip, the second terminal of the third capacitor is also connected to the first terminal of the inductor, the second terminal of the inductor is connected to the first terminal of the fourth capacitor, the first terminal of the fourth capacitor is connected to the first terminal of the fifth capacitor, the second terminal of the fourth capacitor is grounded; the first terminal of the fifth capacitor is connected to the first terminal of the third resistor, the second terminal of the third resistor is connected to the first terminal of the fourth resistor, the second terminal of the fourth resistor is connected to the first terminal of the fifth resistor, the second terminal of the fifth resistor is grounded; the first terminal of the fifth resistor is connected to the fourth pin of the voltage conversion chip, the first terminal of the sixth capacitor is connected to the first terminal of the fourth resistor, and the second terminal of the sixth capacitor is connected to the second terminal of the fourth resistor.

6. A mining gateway with switchable data transmission mode according to claim 5, characterized in that, The voltage conversion chip model is TPS54302D.

Images