4G network communication gateway control panel

Abstract

The utility model relates to the field of Internet of Things (IoT) equipment and Internet of Things communication, and discloses a 4G network communication gateway control panel which comprises a communication module, a power supply module, an SIM flow card interface, a debugging interface, an RSRS485 interface, an LED indicating lamp module and an antenna module, and power supply supports direct current 5-32V input, so that a gateway can be easily connected to power supply systems of various industrial equipment, and the communication efficiency of the gateway is improved. A 4G communication module supporting Python secondary development is adopted, program development is directly completed in the 4G module, the communication module is connected with a server through a 4G network and connected with industrial equipment through an RS485 serial port, the real-time performance and stability of data transmission are improved, a protection circuit is additionally arranged on a power supply / communication interface and the like, and in the face of the complex environment of an industrial site, the communication module is very convenient to use. Equipment damage under the conditions of wrong wiring, non-standard operation, field equipment interference and the like can be effectively prevented, and the service life of the 4G gateway is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of internet of things (IoT) equipment and internet of things communication, specifically to 4G network communication gateway control panel. BACKGROUND

[0002] With the advent of the industrial 4.0 era, digital transformation has become the only way for enterprises to enhance competitiveness and optimize production efficiency. In this process, 4G industrial gateway has become an important bridge connecting industrial sites and the Internet with its outstanding performance and wide applicability, providing strong support for enterprises to realize remote monitoring, data acquisition, equipment control and other functions. However, the existing data acquisition equipment through Ethernet, WIFI, Bluetooth and other communication methods faces many inconvenient factors in industrial / agricultural intelligent device applications, such as large wiring workload, short transmission distance, difficult network maintenance, time-consuming on-site debugging, etc. The device has problems such as complex operation and low efficiency in the configuration and debugging process, especially in the data transmission process, which is prone to parameter setting errors and unstable communication. Therefore, there is an urgent need for a device that can simplify remote communication to meet the market demand of the industrial Internet of Things era.

[0003] The present application is an industrial-grade data transmission device based on 4G network technology, which can connect various devices and sensors in the industrial field to the Internet, realizing real-time transmission and exchange of data. Compared with traditional wired transmission methods, 4G industrial gateway has higher flexibility and scalability, and can easily cope with the complex and variable network environment requirements of industrial sites. The highlights include: providing a unified control interface, simplifying the operation process, enhancing the data interaction capability between the device and the cloud server, and improving the scalability and flexibility of the system.

[0004] Before the development of the present application, most 4G / WIFI data acquisition gateways on the market were developed using the MCU+communication module method. This solution requires adding MCU chip and its peripheral circuit on the circuit board, resulting in increased cost, complex circuit, and one more intermediate layer in communication docking, affecting hardware and system stability. The present application directly uses a communication module that supports OPENCPU secondary development, customizes and writes the logic code of the gateway in the module, saving MCU and communication transfer, simplifying the hardware circuit of the 4G industrial gateway, saving cost while improving system stability. Therefore, we propose a 4G network communication gateway control panel. Utility model content

[0005] (I) Technical problems solved

[0006] In view of the shortcomings of the prior art, the present application provides a 4G network communication gateway control panel, which solves the above problems.

[0007] (II)Technical solutions

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: 4G network communication gateway control panel, including communication module, power module, SIM flow card interface, debugging interface, RSRS485 interface, LED pilot lamp module and antenna module, one end of communication module keeps single line connection between debugging interface, RSRS485 interface and LED pilot lamp module through line, ensures the one-way transmission of data, communication module and power module, SIM flow card interface and antenna module are two-way connection, make data interactive transmission, communication module adopts Yiyuan ECM as debugging interface G gateway controller.

[0009] Preferably, the power module adopts a two-stage voltage stabilizing switching power supply circuit.

[0010] Preferably, the SIM flow card interface displays the selection / filtering / signal connection circuit of the patch eSIM card and NANO self-ejection card slot.

[0011] Preferably, the debugging interface adopts a USB type C interface.

[0012] Preferably, the RSRS485 interface displays the hardware structure and protection design of the RSRS485 interface communication interface.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides 4G network communication gateway control panel, has the following beneficial effects:

[0015] 1. The gateway supports a wide voltage input range of 5-32V, which greatly enhances its adaptability in industrial environments, as industrial equipment often has different power supply voltages. This design enables the gateway to easily access the power supply systems of various industrial equipment, reducing the need for additional power adapters. The gateway's power efficiency is as high as 90% or more, effectively reducing energy consumption. The average power consumption on the board is less than 1W, and the maximum instantaneous power consumption is 10W. The 4G communication module supports Python secondary development, allowing direct program development within the module, eliminating the need for an MCU and its supporting circuit, thereby greatly reducing the size of the gateway's circuit board, achieving miniaturization, and improving the product's portability and flexibility. The gateway connects to a server through a 4G network and connects to industrial equipment through an RS485 serial port, ensuring real-time and stable data transmission, which is crucial for industrial applications that require high reliability data transmission. The gateway has protection circuits at key locations such as power supply and communication interfaces, such as voltage stabilizing diodes, static suppression diodes, and self-recovery fuses, effectively preventing equipment damage caused by incorrect wiring, non-standard operations, and on-site device interference. This not only improves the service life of the gateway but also reduces maintenance costs.

[0016] 2. The gateway provides multiple interface options, such as a USB typeC debugging interface, an RS485 communication interface, and a dual-card switching design, which greatly enhances its applicability and flexibility. Whether it is a patch eSIM mobile traffic card or a NANO plug-in traffic card, it can easily support four different color LED indicator lights for power indication, networking status, TCP data transmission and reception, and 485 data transmission and reception status indication, allowing users to intuitively understand the working status of the gateway. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The 4G gateway system block diagram of the present utility model;

[0018] Figure 2 The core communication module circuit of the present utility model;

[0019] Figure 3 The switching power supply circuit of the present utility model;

[0020] Figure 4 The patch card and NANO SIM card selection circuit of the present utility model;

[0021] Figure 5 The USB typeC interface circuit of the present utility model;

[0022] Figure 6 The RS485 dual protection automatic transmission circuit of the present utility model;

[0023] Figure 7The utility model discloses a LED indicating lamp circuit.

[0024] In the drawing: 1, communication module; 2, power module; 3, SIM flow card interface; 4, debugging interface; 5, RS485 interface; 6, LED indicating lamp module; 7, antenna module. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Please refer to Figures 1-3 , 4G network communication gateway control board, including communication module 1, power module 2, SIM flow card interface 3, debugging interface 4, RS485 interface 5, LED indicating lamp module 6 and antenna module 7, the one end of communication module 1 is kept single line connection between debugging interface 4, RS485 interface 5 and LED indicating lamp module 6 through line, ensure the one-way transmission of data, communication module 1 and power module 2, SIM flow card interface 3 and antenna module 7 are bidirectional connection, make data interactive transmission, communication module 1 uses Yuyuan EC600M as 4G gateway controller, the main serial port of module, SIM interface, ANT antenna interface, USB interface, 3 GPIO, PWRKEY, RESET interface are used in the present example, the power supply interface of module and module output 1.8V power supply interface increase static suppression diode and decoupling capacitor, the pin of module requirement ground is all connected to GND network.

[0027] Further, power module 2 adopts two-stage voltage-stabilizing switching power supply circuit, the first power supply adopts AP63205WU-7 chip (switching frequency 1.1Mhz), supports 5-32V external input power supply, compatible wide power supply voltage, stable output 5V / 2A direct current power supply, meets two-stage power supply demand, the second power supply adopts TPS563201DDCR (switching frequency 580khz) adjustable open source voltage-stabilizing chip, according to voltage regulation formula Vout=0.768 (1+R1 / R2), select R1 as 39k, R2 as 10k, design output as 3.76V / 3A stable power supply, meet the requirements of power supply of communication module (module power supply requirements 3.3V-4.2V / 2A), switching power supply efficiency is more than 90%, switching regulation frequency is high, fast voltage stabilization and ultra-low power loss; Power supply circuit increases BZT52C6V2 voltage regulator diode to prevent one-stage power output transient high voltage from damaging secondary power supply circuit; Increases MMSZ5229B and PTVS3V3D1BALYL-N to prevent secondary output from generating transient high voltage or static electricity, etc.

[0028] Further, the SIM traffic card interface 3 shows the card selection / filtering / signal connection circuit of the patch eSIM card and the NANO self-ejecting card slot, and the circuit of the card selection / filtering / signal connection of the patch eSIM card and the NANO self-ejecting card slot, the SIM interface adopts the NANO self-ejecting card slot packaged by SMN-303, allowing the insertion of NANO specification traffic cards of mobile / telecom / unicom three major operators, and simultaneously integrating the patch card circuit packaged by management SOP8 to adapt to occasions requiring patch eSIM.

[0029] Further, the debugging interface 4 adopts the USB type C interface, the Type C interface circuit increases the SS34 Schottky diode as anti-inverted power protection, supports the USB power supply to the entire circuit board, can work without other external power input, and is convenient for program download and debugging.

[0030] Further, the RS485 interface 5 shows the hardware structure and protection design of the RS485 communication interface, the RS485 circuit adopts the SP3485EN-L / TR chip, and the automatic transceiver switching circuit is built by the triode S9013 to realize the automatic transceiver under the communication rate of 1200-115200bps; The port protection increases the SM712 and two 15V0.1A self-recovery fuses to protect the interface chip from being burned out in the case of wrong line connection, static electricity, surge, etc.; The output port has three wiring modes, which are 3.81-4P plug-in wiring terminal, RJ45 shielded network port seat, and 2.54-4P pin terminal, which are convenient for docking with peripheral devices.

[0031] Structure description: 1, communication module: the communication module is the core component of the 4G network communication gateway control board, responsible for data transmission and processing, which adopts high-performance 4G gateway controller chip such as Yiyuan EC600M, has powerful communication ability and data processing ability, the communication module is connected with the debugging interface, RS485 interface and LED indicator module through a line, realizes one-way transmission of data; At the same time, it is bidirectionally connected with the power module, SIM traffic card interface and antenna module, allowing interactive transmission of data, which ensures accurate and efficient transmission of data;

[0032] 2. Power module: The power module is the power supply system of the control board, which adopts a two-stage voltage-stabilizing switching power supply circuit to ensure the reliability and stability of the system power supply. The first-stage power supply uses an AP63205WU-7 chip to support wide voltage input (5-32V) and stably output 5V / 2A direct current power. The second-stage power supply uses a TPS563201DDCR adjustable open-source voltage-stabilizing chip to design an output of 3.76V / 3A stabilized power supply according to the voltage-stabilizing formula, meeting the requirements of the communication module for power supply. The power module also increases protection measures such as stabilized diodes and electrostatic suppression diodes to prevent damage to the circuit caused by transient high voltage or static electricity from the power supply output;

[0033] 3. SIM traffic card interface: The SIM traffic card interface is a component of the control board used to connect SIM cards, which supports two card selection methods: patch eSIM cards and NANO self-ejecting card slots. The interface circuit includes card selection, filtering, and signal connection parts to ensure stable communication between the SIM card and the communication module. Users can select the appropriate SIM card type according to their needs, making it convenient and flexible to access the 4G network;

[0034] 4. Debugging interface: The debugging interface is an interface of the control board used for program download, debugging, and log output, which adopts the USB type C interface standard. The interface circuit increases a backflow prevention power protection diode, supports USB power supply for the entire circuit board, and facilitates work without other external power input. The design of the debugging interface makes it convenient for users to debug and maintain the program;

[0035] 5. RS485 interface: The RS485 interface is an interface of the control board used for direct communication with controllers / sensors in industrial equipment. It uses an SP3485EN-L / TR chip and an automatic transmit-receive switching circuit to achieve automatic transmission and reception at a communication rate of 1200-115200bps. The interface circuit also increases an overvoltage / overcurrent double protection circuit, which uses self-recovery insurance and SM712 elements to ensure that the communication circuit will not be burned out in cases such as incorrect line connection, static electricity, and surge. The output port supports multiple wiring methods, making it convenient to interface with peripheral devices;

[0036] 6. LED indicator light module: The LED indicator light module is a component of the control board used for indicating the working state, which includes four-color indicator lights (red, green, yellow, and blue). The indicator light circuit uses a low-voltage control high-voltage scheme, which drives the base of S9013 triode through the module IO, and uses a collector open-drain output method to drive the lighting of the LED. Different colored indicator lights are used for power indication, networking status, TCP data transmission and reception, and 485 data transmission and reception state indication, allowing users to intuitively understand the working state of the control board;

[0037] 7、Antenna module: The antenna module is a component of the control board for receiving and transmitting 4G network signals. It is bidirectionally connected with the communication module to ensure the interactive transmission of data. The design and optimization of the antenna module enable the control board to stably access the 4G network, achieving high-speed data transmission and remote communication.

[0038] Working principle:

[0039] First, the application example adopts a 4G communication module that supports OPENCPU secondary development to design an industrial data acquisition gateway, and designs peripheral supporting modules / interfaces. It has networking capability through 4G network and supports direct communication with controllers / sensors in industrial equipment through RS485 interface. The 4G communication module serves as a communication module and a logic controller, saving MCU and supporting circuits compared with traditional solutions (communication module + MCU), realizing the miniaturization of the data acquisition gateway.

[0040] Second, a high-efficiency switching power supply circuit supporting wide voltage power supply input (supporting 5~32VDC) is designed on the power supply circuit, and a two-stage switching power supply circuit is adopted. The external input passes through a one-stage switching power supply circuit, and the output is a 5V / 2A power supply. After passing through a two-stage switching power supply circuit, the output is 3.76V / 3A, and the two-stage output supplies power to the communication module, ensuring the stability of the power supply. The additional voltage stabilizing diode and static suppression diode can effectively prevent the module and communication chip from being damaged by static electricity, improving the reliability of the circuit.

[0041] Third, an interface circuit with overvoltage / overcurrent double protection is designed on the communication interface, using self-recovery fuse + SM712 to realize long-time overvoltage protection, which can effectively protect the communication circuit from being burned out in the case of wrong line connection, static electricity, surge, etc. The output port supports 4-pin plug-in terminal and RJ45 network port, facilitating the connection of industrial equipment.

[0042] Fourth, a dual-card switching design is adopted, which can support both patch eSIM mobile traffic cards and NANO plug-in traffic cards, improving the applicability of the product.

[0043] Fifth, the debugging interface uses the commonly used USB type C interface, which can complete program download and log output using a common mobile data line, improving the production and debugging efficiency of the product.

[0044] Sixth, the indicator light circuit uses four different demonstration LED indicator lights (red + green + yellow + blue) for power indication, networking status, TCP data transmission and reception, and 485 data transmission and reception status indication, which is very intuitive.

[0045] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 4G network communication gateway control board, characterized in that, Including communication module (1), power module (2), SIM traffic card interface (3), debugging interface (4), RS485 interface (5), LED indicator module (6) and antenna module (7), one end of the communication module (1) is connected with the debugging interface (4), RS485 interface (5) and LED indicator module (6) through the line and keeps single line connection, ensures the one-way transmission of data, the communication module (1) and power module (2), SIM traffic card interface (3) and antenna module (7) are bidirectional connection, so that data is interactive transmission.

2. The 4G network gateway control board of claim 1, wherein: The communication module (1) uses Yuyuan EC600M as 4G gateway controller, which shows the application of EC600M chip in the control system and the connection relationship between various modules.

3. The 4G network communication gateway control board according to claim 1, characterized in that: The power module (2) uses two-stage voltage stabilizing switching power supply circuit, which ensures the reliability and stability of system power supply.

4. The 4G network gateway control board of claim 1, wherein: SIM traffic card interface (3) shows the card selection / filtering / signal connection circuit of patch eSIM card and NANO self-ejection card slot.

5. The 4G network communication gateway control board according to claim 1, characterized in that: The debugging interface (4) uses USB type C interface.

6. The 4G network gateway control board of claim 1, wherein: The RS485 interface (5) shows the hardware structure of RS485 communication interface and its protection design, which ensures the reliability and stability of communication port.

7. The 4G network gateway control board of claim 1, wherein: The LED indicator module (6) shows the hardware structure of four color indicator.

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