An IO controller

Abstract

The utility model discloses an IO controller, including 4G plug -in board and bottom plate. The utility model discloses the detachable combination structure of bottom plate and 4G plug -in board, breaks through the limitation of traditional controller function solidification. 4G plug -in board can be according to the demand nimble dismouting, and support future replacement for 5G plug -in board, realize the smooth upgrade of communication function, solved the problem that traditional equipment communication module is not replaceable, and realize the integration of multiple signal interfaces on single bottom plate simultaneously, adapt to different types of sensor and actuator, low in cost, have high linearity and load capacity, can directly drive valve, frequency converter and other equipment.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to an I / O controller. Background Technology

[0002] An I / O controller is an "intermediate management unit" that connects a computer (or main controller) to external devices (such as sensors, actuators, displays, etc.). Its core function is to coordinate the "data transmission, command execution, and status feedback" between the main device (such as a CPU, microcontroller, or PLC) and external I / O devices, and to solve problems such as "speed mismatch, signal type differences, and different operating logics". It is a key component for realizing "orderly interaction" between devices.

[0003] In the current industrial control field, traditional I / O controllers suffer from three major pain points: First, functional fragmentation—switching control, analog signal acquisition and output, and remote communication often require multiple devices, leading to complex system wiring and increased failure rates; second, insufficient expansion flexibility—most controllers use fixed designs for communication modules and signal interfaces, making it impossible to flexibly add or remove functions according to field requirements; and third, limited signal compatibility—analog interfaces typically only support a single range, making it difficult to adapt to different types of sensors and actuators. Therefore, developing an I / O controller that combines comprehensive signal interaction capabilities, modular communication design, and high compatibility has become an industry requirement. Utility Model Content

[0004] The purpose of this invention is to provide an I / O controller to solve the problems mentioned in the background section. To solve these technical problems, this invention is achieved through the following technical solution: This utility model is an IO controller, including a 4G plug-in board and a base plate; The 4G plug-in board includes a 4G communication module, a power supply chip, a SIM card slot, a plug-in terminal J1, and a plug-in terminal J2; The 4G communication module enables the device to have 4G mobile communication capabilities; Power supply chips ensure stable power supply to all components of the device; The SIM card slot is the physical interface for installing a SIM card. Its core function is to enable the device to complete "identity authentication" in the 4G network and obtain legitimate network access permissions through the SIM card. Connect terminal J1 to supply power to the 4G connector board; Connect terminal J2 to the MCU's serial port via the baseboard; The base plate includes a power supply, a main controller, a digital input circuit, a digital output circuit, an analog input circuit, an analog output circuit, a plug-in terminal block, a serial port, indicator lights, and an RS485 communication interface. Power supply, used to power the MCU and other functional circuits; The main controller receives and processes information, issues instructions to other components, coordinates the work of all hardware, and ultimately realizes the device's preset functions. The switch input circuit converts the binary states of external devices, such as on / off, present / absent, and on / off, into digital electrical signals that the main controller can recognize and process. The digital output circuit amplifies or converts the digital signal sent by the main controller into a switching action signal that can drive external devices, thereby realizing the on / off control of external devices. The analog input circuit converts the continuous analog signals output by the external sensor into digital signals that the main controller can recognize. The analog output circuit converts the digital signal from the main controller into a continuously changing analog signal, which is used to drive external devices that require continuous adjustment to achieve precise control. For the plug-in terminal block, the circuit between the scattered wires, PCB board or module is connected by the plugging and unplugging of the male and female terminals; Serial ports enable low-cost, short-distance bidirectional data transmission between two devices; Indicator lights indicate the power status, program running status, and 4G network running status of the 4G socket, respectively. The RS485 communication interface enables the acquisition of device data.

[0005] Preferably, the power input supports a maximum of DC30V, and outputs 5V voltage through a DC-DC voltage chip. The 5V voltage is then converted to 3.3V through two LDO chips.

[0006] Preferably, the digital input circuit supports both active and passive inputs, with an input voltage range of 12-24V. DI1-DI4 are positive connection points, DICOM- is the negative connection point, and an internal chip completes opto-isolation.

[0007] Preferably, the switching output circuit outputs data via a relay.

[0008] Preferably, the analog input circuit supports two DC analog voltage and analog current inputs, with the analog voltage input range being 0-10V and the analog current input range being 4-20mA.

[0009] Preferably, the analog output circuit supports one DC analog voltage and one analog current output, with the analog voltage output range being 0-10V and the analog current output range being 4-20mA.

[0010] Preferably, the interlocking terminal blocks P4 / P5 are electrically connected to the interlocking terminals J1 / J2 of the 4G plug board.

[0011] Preferably, the serial port design supports one-click download of program hex files.

[0012] Preferably, the indicator light has three channels, which respectively indicate the power status, program running status, and 4G network running status of the 4G plug-in. When the power is on, the power indicator light is always on, and the other two lights flash when the power is on.

[0013] Preferably, the RS485 communication interface is connected to an external RS485 device via RS485A or RS485B to complete the acquisition of device data.

[0014] This utility model has the following beneficial effects: The core innovation of this utility model lies in the integrated design of signal acquisition, control output, and remote interaction through a modular architecture, specifically including: 1. Structural Innovation: Utilizing a detachable combination structure of the base plate and 4G plug-in board, it overcomes the limitations of traditional controllers with fixed functions. The 4G plug-in board can be flexibly installed and removed as needed, and supports future replacement with a 5G plug-in board, enabling a smooth upgrade of communication functions and solving the problem of irreplaceable communication modules in traditional equipment.

[0015] 2. Functional Integration Innovation: Multiple signal interfaces can be integrated simultaneously on a single baseboard. 1. The digital input / output unit supports a wide voltage range and isolation design, adapting to different types of sensors and actuators; 2. The analog input unit adopts a low-cost design and is configurable for a wide range of 0-10V voltage signals and 4-20mA current signals; Third, the analog output unit has high linearity and load capacity, and can directly drive equipment such as valves and frequency converters. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is the circuit diagram of the 4G plug-in board of this utility model; Figure 2 This is the power supply circuit diagram of this utility model; Figure 3 This is the circuit diagram of the main controller of this utility model; Figure 4 This is the circuit diagram for the switch input of this utility model; Figure 5 This is the circuit diagram for the switch output of this utility model; Figure 6 This is the analog input circuit diagram of this utility model; Figure 7 This is the analog output circuit diagram of this utility model; Figure 8 This is the circuit diagram of the plug-in terminal block of this utility model; Figure 9 This is the serial port circuit diagram of this utility model; Figure 10 This is the circuit diagram of the indicator light of this utility model; Figure 11 This is the circuit diagram of the RS485 communication interface of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To make the objectives, technical solutions and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Please see Figure 1-11 As shown, this utility model is an IO controller, including a 4G plug-in board and a base plate; The 4G connector board includes a 4G communication module, a power supply chip, a SIM card slot, a connector J1, and a connector J2. The 4G communication module enables the device to have 4G mobile communication capabilities. The optional 4G communication module model is ML307R. Power supply chip ensures stable power supply to all components of the equipment. The optional power supply chip model is TJ4320GDP.

[0021] The SIM card slot is the physical interface for installing a SIM card. Its core function is to enable the device to complete "identity authentication" in the 4G network and obtain legal network access rights through the SIM card. The SIM card slot model SMC-202-6 is available.

[0022] Connect terminal J1 to supply power to the 4G socket, using +5V.

[0023] The J2 terminal is connected to the serial port of the MCU via the baseboard, specifically through the MCU_RXD6 and MCU_TXD6 terminals.

[0024] The baseboard includes a power supply, main controller, digital input circuit, digital output circuit, analog input circuit, analog output circuit, plug-in terminal block, serial port, indicator lights, and RS485 communication interface.

[0025] Power supply, used to power the MCU and other functional circuits; The power input supports up to DC30V, and outputs 5V voltage through a DC-DC voltage chip. The 5V voltage is then converted to 3.3V through two LDO chips.

[0026] The main controller receives and processes information, issues instructions to other components, coordinates the work of all hardware, and ultimately realizes the device's preset functions. The main controller is an STM32F407VET6.

[0027] The switch input circuit converts the binary states of external devices, such as on / off, present / absent, and on / off, into digital electrical signals that the main controller can recognize and process. The digital input circuit supports active and passive inputs, with an input voltage range of 12-24V. DI1-DI4 are the positive connection points, and DICOM- is the negative connection point. An internal chip completes opto-isolation. When there is no digital input, IN1A, IN2A, IN3A, and IN4A output a high level to the MCU controller; when there is a valid digital input, IN1A, IN2A, IN3A, and IN4A output a low level to the MCU controller.

[0028] The digital output circuit amplifies or converts the digital signal sent by the main controller into a switching action signal that can drive external devices, thereby realizing the on / off control of external devices. The switch output circuit outputs via a relay; In use, taking the first channel as an example, the MCU main controller controls the state of the relay through DOA. When DOA outputs a low level, contacts DO1 and DO1* are in the open circuit state; when DOA outputs a high level, contacts DO1 and DO1* are in the closed state. The relay contact capacity is DC 5A 30V and AC 5A 250V.

[0029] The analog input circuit converts the continuous analog signals output by the external sensor into digital signals that the main controller can recognize. The analog input circuit supports two DC analog voltage and analog current inputs, with an analog voltage input range of 0-10V and an analog current input range of 4-20mA.

[0030] The analog output circuit converts the digital signal from the main controller into a continuously changing analog signal, which is used to drive external devices that require continuous adjustment to achieve precise control. The analog output circuit supports one DC analog voltage and analog current output, with an analog voltage output range of 0-10V and an analog current output range of 4-20mA.

[0031] For the plug-in terminal block, the circuit between the scattered wires, PCB board or module is connected by the plugging and unplugging of the male and female terminals; The electrical connections of the plug-in terminal blocks P4 / P5 correspond to the plug-in terminals J1 / J2 of the 4G plug board.

[0032] Serial ports enable low-cost, short-distance bidirectional data transmission between two devices; The serial port design supports one-click download of program hex files.

[0033] Indicator lights indicate the power status, program running status, and 4G network running status of the 4G socket, respectively. The indicator light has three channels, which respectively indicate the power status, program running status, and 4G network running status of the 4G plug. When the power is on, the power indicator light is always on, while the other two lights flash when the power is on.

[0034] The RS485 communication interface is used to acquire device data. The RS485 communication interface connects to external RS485 devices via RS485A and RS485B to collect device data.

[0035] Specifically: 1. The logical relationships between inputs and outputs can be configured via the host computer. The main logical relationships are forward =, reverse ~, AND &, OR |, NAND & ~, NOR | ~, greater than or equal to >=, less than or equal to <=, and equal to ==. The configurable correspondences are: single input, single output; multiple inputs, single output; multiple inputs, multiple outputs.

[0036] 2. Communication parameters can be configured via a host computer. This includes 4G communication, RS-485 communication, serial communication, and uploading parameters to the cloud platform.

[0037] This solution employs a detachable combination structure of a base plate and a 4G plug-in board, overcoming the limitations of traditional controllers with fixed functions. The 4G plug-in board can be flexibly installed and removed as needed and supports future replacement with a 5G plug-in board, enabling a smooth upgrade of communication functions. This solves the problem of irreplaceable communication modules in traditional equipment. Furthermore, it integrates multiple signal interfaces on a single base plate, adapting to different types of sensors and actuators. It is low-cost, possesses high linearity and load capacity, and can directly drive equipment such as valves and frequency converters.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An I / O controller, characterized in that, Including 4G socket and baseboard; The 4G plug-in board includes a 4G communication module, a power supply chip, a SIM card slot, a plug-in terminal J1, and a plug-in terminal J2; The 4G communication module enables the device to have 4G mobile communication capabilities; Power supply chips ensure stable power supply to all components of the device; The SIM card slot is the physical interface for installing a SIM card. Its core function is to enable the device to complete "identity authentication" in the 4G network and obtain legitimate network access permissions through the SIM card. Connect terminal J1 to supply power to the 4G connector board; Connect terminal J2 to the MCU's serial port via the baseboard; The base plate includes a power supply, a main controller, a digital input circuit, a digital output circuit, an analog input circuit, an analog output circuit, a plug-in terminal block, a serial port, indicator lights, and an RS485 communication interface. Power supply, used to power the MCU and other functional circuits; The main controller receives and processes information, issues instructions to other components, coordinates the work of all hardware, and ultimately realizes the device's preset functions. The switch input circuit converts the binary states of external devices, such as on / off, present / absent, and on / off, into digital electrical signals that the main controller can recognize and process. The digital output circuit amplifies or converts the digital signal sent by the main controller into a switching action signal that can drive external devices, thereby realizing the on / off control of external devices. The analog input circuit converts the continuous analog signals output by the external sensor into digital signals that the main controller can recognize. The analog output circuit converts the digital signal from the main controller into a continuously changing analog signal, which is used to drive external devices that require continuous adjustment to achieve precise control. For the plug-in terminal block, the circuit between the scattered wires, PCB board or module is connected by the plugging and unplugging of the male and female terminals; Serial ports enable low-cost, short-distance bidirectional data transmission between two devices; Indicator lights indicate the power status, program running status, and 4G network running status of the 4G socket, respectively. The RS485 communication interface enables the acquisition of device data.

2. An I / O controller according to claim 1, characterized in that: The power input supports up to DC30V, and outputs 5V voltage through a DC-DC voltage chip. The 5V voltage is then converted to 3.3V through two LDO chips.

3. An I / O controller according to claim 1, characterized in that: The digital input circuit supports both active and passive inputs, with an input voltage range of 12-24V. DI1-DI4 are the positive input points, and DICOM- is the negative input point. An internal chip provides opto-isolation.

4. An I / O controller according to claim 1, characterized in that: The switch output circuit outputs signals via relays.

5. An I / O controller according to claim 1, characterized in that: The analog input circuit supports two DC analog voltage and analog current inputs, with an analog voltage input range of 0-10V and an analog current input range of 4-20mA.

6. An I / O controller according to claim 1, characterized in that: The analog output circuit supports one DC analog voltage and analog current output, with an analog voltage output range of 0-10V and an analog current output range of 4-20mA.

7. An I / O controller according to claim 1, characterized in that: The interlocking terminal blocks P4 / P5 are electrically connected to the interlocking terminals J1 / J2 of the 4G plug board.

8. An I / O controller according to claim 1, characterized in that: The serial port design supports one-click download of program hex files.

9. An I / O controller according to claim 1, characterized in that: The indicator light has three channels, which respectively indicate the power status, program running status, and 4G network running status of the 4G plug-in. When the power is on, the power indicator light is always on, while the other two lights flash.

10. An I / O controller according to claim 1, characterized in that: The RS485 communication interface connects to external RS485 devices via RS485A and RS485B to collect device data.

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