An interface circuit with liquid crystal screen for converging shunt devices and a device thereof

Abstract

This application discloses an interface circuit and device with an LCD screen for a data aggregation and distribution system. The interface circuit includes a microcontroller module, a switch module, an LCD module, an SFP optical port module, an RJ45 interface module, and a button module. The microcontroller module is connected to the switch module via an Ethernet interface, and the switch module is connected to an external Ethernet signal. The microcontroller module is also connected to the LCD module and the SFP optical port module via an I2C interface. The device provides an RJ45 serial port module for connecting to an external serial port signal. The microcontroller module is also connected to the button module. The signal interaction terminals of the switch module are connected to the SFP optical port module and the RJ45 network port module, respectively. The LCD module is connected to an LCD screen. The button module receives button signals and sends them to the microcontroller module. The microcontroller module sends data to the LCD module, and the LCD module controls the display content of the LCD screen based on the button signals. This application provides a more comprehensive interface combination, which can flexibly cope with diverse interface device application scenarios.

Description

Technical Field

[0001] This application relates to the field of interface device technology, and in particular to an interface circuit with an LCD screen and the same for a convergence and distribution device. Background Technology

[0002] Currently, in the field of convergence and distribution equipment, interface devices are key components used to realize data transmission, communication control, and equipment status monitoring.

[0003] In existing technologies, interface devices typically employ limited interface combinations, such as a combination of only Ethernet and serial ports, or a combination of optical, Ethernet, and serial ports. These combinations lack comprehensive functionality and are insufficient to flexibly address diverse application scenarios, such as data center network monitoring, industrial automation, or telecommunications equipment management, thus requiring improvement. Utility Model Content

[0004] In order to provide a more comprehensive interface combination and flexibly respond to diverse interface device application scenarios, this application provides an interface circuit with an LCD screen and the same for a convergence and distribution device.

[0005] Firstly, this application provides an interface circuit and device with an LCD screen for a convergence and distribution equipment, which adopts the following technical solution: An interface circuit with an LCD screen for a convergence and distribution device includes a microcontroller module, a switch module, an LCD module, an SFP optical port module, an RJ45 interface module, and a button module; The microcontroller module is connected to the switch module via an Ethernet interface, and the switch module is connected to an external Ethernet signal; the microcontroller module is connected to the LCD module via an SPI interface, the microcontroller module is connected to the SFP optical port module via an I2C interface, and the microcontroller module is connected to the button module via an I / O interface; The RJ45 interface module includes an RJ45 serial port module and an RJ45 network port module. The RJ45 serial port module is connected to an external serial port signal. The signal interaction terminal of the switch module is connected to the SFP optical port module and the RJ45 network port module, respectively. The signal control terminal of the LCD module is connected to an LCD screen. The button module receives button signals and sends them to the microcontroller module. The microcontroller module receives button signals and sends data to the LCD module. The LCD module controls the display content of the LCD screen based on the button signals.

[0006] By adopting the above technical solution, the interface circuit of this application is compatible with LCD screen, button module, SFP optical port, RJ45 network port and RJ45 serial port functions, so as to provide optical port interconnection communication, network port communication, serial port communication and other interface communication, so as to provide a more comprehensive interface combination form and flexibly cope with diverse interface device application scenarios. Specifically, the microcontroller module is connected to the switch module via an Ethernet interface and configured to transmit data via the Ethernet communication protocol. Data can be transmitted to the microcontroller module through the Ethernet port of the switch module, and the switch module can connect to external Ethernet signals to enable network management control of the device. The microcontroller module is connected to the SFP optical port module via an I2C interface and configured to read and write data to the SFP optical port module via the I2C communication protocol. The microcontroller module is connected to the button module via an I / O interface and configured to control the display content of the LCD module through button input. The dual control circuit of the microcontroller module and the switch module realizes the button control function and the display function of the LCD device information. The interface circuit of this application can connect the external Ethernet signal with the Ethernet signal of the microcontroller module, the electrical signal of the SFP optical port module, and the electrical signal of the RJ45 network port module to realize signal routing.

[0007] Preferably, the microcontroller module includes a microcontroller chip, and the switch module is configured with multiple network management communication interfaces connected to the microcontroller chip, including MII, RMII or GMII interfaces.

[0008] By adopting the above technical solution, based on the dual-control mode of the microcontroller module and the switch module, and through network management communication interfaces such as MII, RMII, or GMII interfaces, flexible adaptation of Ethernet data at different speeds and under different modes can be achieved, resulting in higher data transmission efficiency. The multi-interface compatibility design enhances the system's scalability and compatibility.

[0009] Preferably, the switch module integrates a serial deserializer that is electrically connected to the SFP optical port module to realize the conversion between the electrical signal and the Ethernet signal of the SFP optical port module.

[0010] By adopting the above technical solution, this application realizes high-speed conversion and synchronous processing between optical module electrical signals and Ethernet signals through a serial deserializer.

[0011] Preferably, the LCD module includes an LCD display driver chip connected to the LCD screen. The LCD control terminal of the LCD display driver chip is connected to a control switch tube that controls the LCD screen to switch to sleep mode or display mode. The data interaction terminal of the LCD display driver chip is connected to the LCD data interaction terminal of the microcontroller chip.

[0012] By adopting the above technical solution, the LCD display driver chip, and by controlling the switching transistor to realize the intelligent switching between sleep mode and display mode of the LCD screen, greatly optimizes the power consumption management capability of the device and achieves energy saving effect.

[0013] Preferably, the RS pin and RES pin of the LCD display driver chip are connected to surge suppression resistors.

[0014] By adopting the above technical solution, surge suppression resistors are used to suppress voltage spikes and electromagnetic interference that may be generated during signal switching.

[0015] Preferably, the control switch is a PMOS transistor, the gate of the PMOS transistor is coupled to the microcontroller chip, the drain of the PMOS transistor is connected to the LEDA pin of the LCD display driver chip, and the source of the PMOS transistor is connected to the power supply.

[0016] By adopting the above technical solution, a PMOS transistor is used as the control switch transistor. The gate of the PMOS transistor is controlled by the microcontroller chip, the drain is connected to the LEDA pin of the LCD display driver chip, and the source is connected to the power supply, thus forming a high-efficiency backlight control circuit.

[0017] Preferably, the button module includes a first button scanning chip for outputting switch signals and off signals, and a second button scanning chip for outputting button control signals.

[0018] By adopting the above technical solution, the division of labor in key function acquisition and logic decoupling are achieved, which helps to improve the accuracy of key response.

[0019] Secondly, this application provides an interface device with an LCD screen for a convergence and distribution device, which adopts the following technical solution: An interface device with an LCD screen for a convergence and splitting device includes a housing and a circuit board, wherein the circuit board is disposed in the housing and carries an interface circuit with an LCD screen for a convergence and splitting device as described above.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. This system integrates a microcontroller module, a switch module, an LCD module, an SFP optical port module, an RJ45 interface module (including an RJ45 serial port module and an RJ45 network port module), and a button module. It utilizes multiple interfaces such as Ethernet, SPI, I2C, serial ports, and I / O to achieve inter-module communication, constructing a highly integrated and fully functional convergence and distribution device interface system. This structure not only enables flexible access and forwarding of photoelectric signals but also coordinates the operating status of each module through a microcontroller and displays device operating information in real time using an LCD module. This achieves the goal of providing a more comprehensive range of interface combinations to flexibly address diverse interface device application scenarios. 2. The multi-interface compatibility design enhances the system's scalability and compatibility, enabling it to adapt to various network environment requirements and ensuring that the aggregation and distribution equipment can operate stably in different application scenarios. Attached Figure Description

[0021] Figure 1 This is a circuit diagram of a microcontroller module in an interface circuit with an LCD screen for a convergence and distribution device according to Embodiment 1 of this application.

[0022] Figure 2 This is a circuit diagram of the microcontroller module and the RJ45 interface module in an interface circuit with an LCD screen for a convergence and distribution device according to Embodiment 1 of this application.

[0023] Figure 3 This is a circuit diagram of a switch module in an interface circuit with an LCD screen for a convergence and distribution device according to Embodiment 1 of this application; Figure 4 This is a circuit diagram of an LCD module in an interface circuit with a liquid crystal screen for a convergence and distribution device according to Embodiment 1 of this application; Figure 5 This is a circuit diagram of a button module in an interface circuit with an LCD screen for a convergence and distribution device according to Embodiment 1 of this application. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0025] Example 1 This application discloses an interface circuit with an LCD screen for a convergence and distribution device. (Refer to...) Figures 1 to 5 The interface circuit includes a microcontroller module, a switch module, an LCD module, an SFP optical port module, an RJ45 interface module, and a button module.

[0026] Reference Figures 1 to 5 ,by Figures 1 to 5Taking the circuit shown as an example, the microcontroller module is connected to the switch module via an Ethernet interface, and the switch module is connected to an external Ethernet signal; the microcontroller module is connected to the LCD module via an SPI interface, the microcontroller module is connected to the SFP optical port module via an I2C interface, and the microcontroller module is connected to the button module via an I / O interface; the RJ45 interface module includes an RJ45 serial port module and an RJ45 network port module, and the RJ45 serial port module is connected to an external serial port signal; the signal interaction terminals of the switch module are connected to the SFP optical port module and the RJ45 network port module respectively; the signal control terminal of the LCD module is connected to an LCD screen (not shown in the figure); the button module receives button signals and sends them to the microcontroller module, the microcontroller module receives button signals and sends data to the LCD module, and the LCD module controls the display content of the LCD screen based on the button signals.

[0027] Reference Figure 1 and Figure 2 The microcontroller module includes microcontroller chips (U7A and U7B chips in the diagram). STM32F4 and GD32H7 series chips can be used. Configuration requires at least one SPI, one I²C, and one Ethernet MAC interface (supporting MII / RMII / GMII). An RJ45 interface module is also included. Figure 2 As shown, the RJ45 interface module includes the RJ45 network port module U380A and the RJ45 serial port module U380C.

[0028] Reference Figure 3 The switch module is equipped with multiple network management communication interfaces that connect to the microcontroller chip. These interfaces include MII, RMII, or GMII interfaces. The switch module integrates a serial deserializer (not shown in the figure) that is electrically connected to the SFP optical port module to convert the electrical signals of the SFP optical port module to Ethernet signals.

[0029] Reference Figure 4 The LCD module includes an LCD display driver chip (U204 in the diagram) connected to the LCD screen. The LCD control terminal of the LCD display driver chip is connected to a control switch transistor that controls the LCD screen to switch between sleep and display modes. The data interaction terminals (SDA and SCL pins) of the LCD display driver chip are connected to the LCD data interaction terminal of the microcontroller chip. Surge suppression resistors are connected to the RS and RES pins of the LCD display driver chip, effectively suppressing voltage spikes and electromagnetic interference that may occur during signal switching. The control switch transistor is a PMOS transistor (marked Q8 in the diagram). The gate of the PMOS transistor is coupled to the microcontroller chip, the drain of the PMOS transistor is connected to the LEDA pin of the LCD display driver chip, and the source of the PMOS transistor is connected to a 3.3V power supply.

[0030] like Figure 5As shown, the button module includes a first button scanning chip for outputting switch signals and off signals, and a second button scanning chip for outputting button control signals. The first button scanning chip is chip U124 in the figure, and the second button scanning chip is chip U123 in the figure. Both the first and second button scanning chips can be button encoder chips such as the 74HC148.

[0031] The implementation principle of an interface circuit with an LCD screen for a convergence and distribution device according to an embodiment of this application is as follows: A microcontroller module drives an LCD display driver chip via an SPI interface to transmit device status in real time and display IP information and subnet mask information. The microcontroller module is connected to a switch module via an Ethernet interface, enabling data transmission via the Ethernet communication protocol. Data can be transmitted to the main controller via the Ethernet port of the switch module, enabling network management control of the device. This application integrates a microcontroller module, a switch module, an LCD module, an SFP optical port module, an RJ45 serial port module, an RJ45 network port module, and a button module. It employs multiple interfaces such as Ethernet, SPI, I2C, serial ports, and I / O to achieve inter-module communication, constructing a highly integrated and fully functional convergence and distribution device interface system.

[0032] Example 2 This application also discloses an interface device with an LCD screen for use in convergence and distribution equipment.

[0033] An interface device with an LCD screen for a convergence and splitting device includes a housing and a circuit board. The circuit board is disposed in the housing and carries an interface circuit with an LCD screen for the convergence and splitting device.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An interface circuit with an LCD screen for a convergence and splitter device, characterized in that, It includes microcontroller modules, switch modules, LCD modules, SFP optical port modules, RJ45 interface modules, and button modules; The microcontroller module is connected to the switch module via an Ethernet interface, and the switch module is connected to an external Ethernet signal; the microcontroller module is connected to the LCD module via an SPI interface, the microcontroller module is connected to the SFP optical port module via an I2C interface, and the microcontroller module is connected to the button module via an I / O interface; The RJ45 interface module includes an RJ45 serial port module and an RJ45 network port module. The RJ45 serial port module is connected to an external serial port signal. The signal interaction terminal of the switch module is connected to the SFP optical port module and the RJ45 network port module, respectively. The signal control terminal of the LCD module is connected to an LCD screen. The button module receives button signals and sends them to the microcontroller module. The microcontroller module receives button signals and sends data to the LCD module. The LCD module controls the display content of the LCD screen based on the button signals.

2. The interface circuit with LCD screen for a convergence and splitter device according to claim 1, characterized in that, The microcontroller module includes a microcontroller chip, and the switch module is configured with multiple network management communication interfaces connected to the microcontroller chip. The multiple network management communication interfaces include MII interfaces, RMII interfaces, or GMII interfaces.

3. The interface circuit with an LCD screen for a convergence and splitter device according to claim 1, characterized in that, The switch module integrates a serial deserializer that is electrically connected to the SFP optical port module, enabling the conversion between the electrical signals of the SFP optical port module and the Ethernet signals.

4. An interface circuit with an LCD screen for a convergence and splitter device according to claim 2, characterized in that, The LCD module includes an LCD display driver chip connected to the LCD screen. The LCD control terminal of the LCD display driver chip is connected to a control switch tube that controls the LCD screen to switch to sleep mode or display mode. The data interaction terminal of the LCD display driver chip is connected to the LCD data interaction terminal of the microcontroller chip.

5. An interface circuit with an LCD screen for a convergence and splitter device according to claim 4, characterized in that, The surge suppression resistors are connected to the RS and RES pins of the LCD display driver chip.

6. An interface circuit with an LCD screen for a convergence and splitter device according to claim 4, characterized in that, The control switch is a PMOS transistor. The gate of the PMOS transistor is coupled to the microcontroller chip, the drain of the PMOS transistor is connected to the LEDA pin of the LCD display driver chip, and the source of the PMOS transistor is connected to the power supply.

7. An interface circuit with an LCD screen for a convergence and splitter device according to claim 2, characterized in that, The button module includes a first button scanning chip for outputting switch signals and off signals, and a second button scanning chip for outputting button control signals.

8. An interface device with an LCD screen for use in convergence and distribution equipment, characterized in that, The device includes a housing and a circuit board, the circuit board being disposed in the housing and carrying an interface circuit with an LCD screen for a convergence and splitter device as described in any one of claims 1 to 7.

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