A quick access intelligent control box for industrial equipment

Abstract

The application discloses a quick access intelligent control box for industrial equipment, comprising: a box body; an AC / DC power module arranged in the box body and used for converting alternating current input from outside into direct current required by the system; an operation controller arranged in the box body; a 4G DTU communication module arranged in the box body and in communication connection with the operation controller and used for establishing a data link with a remote cloud server through a 4G network; and a digital quantity input DI interface arranged on the box body and connected with the operation controller and used for collecting on-off quantity state signals of the industrial equipment. The application integrates multiple functions into a compact control box, greatly shortens the deployment period, reduces the technical threshold and comprehensive cost, provides three mainstream industrial interfaces of DI, DO and RS485, can cover the access scenes of most industrial equipment and has good universality.

Description

Technical Field

[0001] This invention relates to the fields of industrial automation and Internet of Things (IoT) technology, and more specifically, to a smart control box for quick access to industrial equipment. Background Technology

[0002] In the context of Industry 4.0 and smart manufacturing, upgrading traditional industrial equipment with the Internet of Things (IoT) to achieve remote monitoring and intelligent control has become a key means to improve production efficiency and reduce operating costs. However, currently, upgrading existing industrial equipment with intelligence typically faces the following technical challenges: 1. Low integration and complex deployment: It requires separate purchase of power supplies, PLCs (programmable logic controllers), communication modules (such as 4G DTUs), relay modules, etc., followed by complex wiring and cabinet installation, resulting in long construction cycles, high costs, and high requirements for technical personnel.

[0003] 2. Poor compatibility: Industrial equipment has a variety of interfaces (such as passive contacts, NPN / PNP, RS232 / RS485, etc.), and general data acquisition modules are often difficult to directly adapt to all devices, requiring additional signal conversion or configuration, which increases the instability and complexity of the system.

[0004] 3. Insufficient communication stability and flexibility: Wired networks are inconvenient to deploy in complex factory environments, while traditional wireless solutions may have signal coverage or protocol compatibility issues. Quickly building stable and flexible data links is a major challenge.

[0005] 4. Inconvenient control terminal: Traditional SCADA (data acquisition and monitoring control system) or PC software is not conducive to field engineers or managers to conduct monitoring and operation anytime, anywhere and respond quickly.

[0006] Therefore, there is an urgent need in this field for an industrial equipment access solution that can achieve "plug and play", rapid deployment, high integration and convenient control. Summary of the Invention

[0007] To address the problems existing in the prior art, the present invention aims to provide a smart control box for rapid access to industrial equipment, which solves the technical problems of low integration, complex deployment, poor compatibility, and insufficient communication stability and flexibility in the Internet of Things transformation of traditional industrial equipment.

[0008] To solve the above problems, the present invention adopts the following technical solution; A quick-access smart control box for industrial equipment, comprising: The box body, the cloud server and the mini-program control terminal that work with the smart control box; An AC / DC power module, located inside the housing, is used to convert externally input AC power into DC power required by the system. The arithmetic controller is located inside the box. The 4G DTU communication module is located inside the box and is communicatively connected to the computing controller. It is used to establish a data link with a remote cloud server through a 4G network. A digital input (DI) interface is located on the housing and connected to the arithmetic controller, used to acquire the switching status signals of industrial equipment. A digital output (DO) interface is located on the housing and is connected to the arithmetic controller via a relay. It is used to output switch control signals according to control commands to drive external loads. An RS485 communication interface is located on the housing and connected to the arithmetic controller. It is used to connect industrial equipment with an RS485 interface for bidirectional data communication. The pre-simulation connection module is located inside the box and performs pre-simulation connection of the communication connection between the digital input (DI) interface, the digital output (DO) interface and the RS485 communication interface according to the simulation instructions of the mini-program control terminal. The cloud server establishes a communication connection with the smart control box via a 4G network, and is used to receive, store, process and forward data from the smart control box, as well as issue control commands to the smart control box. The mini-program control terminal runs on a mobile terminal and communicates with the cloud server. It is used to display real-time status data of industrial equipment to users and receive operation commands from users, which are then sent to the smart control box via the cloud server.

[0009] As a further description of the above technical solution: The device status data collected by the digital input (DI) interface and the device parameter data collected by the RS485 communication interface are uploaded to the cloud server via the 4G DTU communication module; and control commands are received from the cloud server. The digital output (DO) interface or RS485 communication interface performs corresponding control operations on the industrial equipment.

[0010] As a further description of the above technical solution: The box is made of flame-retardant ABS engineering plastic.

[0011] As a further description of the above technical solution: The relay connected to the digital output (DO) interface and the arithmetic controller is either an electromagnetic relay or a solid-state relay, and an electrical isolation circuit is provided between the DO interface and the relay.

[0012] As a further description of the above technical solution: The computing controller is connected to a status indicator unit, which is used to display the working status of the power supply, communication, and I / O interfaces.

[0013] As a further description of the above technical solution: The mini-program control terminal provides a graphical interface for dynamically displaying DI / DO status and RS485 device data, and generates virtual control buttons to trigger DO output or RS485 command issuance.

[0014] As a further description of the above technical solution: The cloud server is equipped with a rule engine, which is used to automatically generate control commands based on preset logical conditions and send them to the smart control box to achieve automated control. The operation logic of the rule engine is to acquire industrial equipment data streams, match preset rules and trigger control conditions to send control commands.

[0015] As a further description of the above technical solution: The number of digital input (DI) interfaces is at least 4, and the number of digital output (DO) interfaces is at least 2.

[0016] As a further description of the above technical solution: The pre-simulation connection module includes a device protocol library, a virtual device instance management unit, and a configuration storage unit. Based on the device model information sent by the mini-program control terminal, the pre-simulation connection module retrieves the corresponding protocol template, creates a virtual device instance in the computing controller, simulates the DI / DO state changes and RS485 communication behavior of the target device, completes control logic verification and communication testing, and saves the verified parameters as a configuration file. After the physical device is connected, the computing controller loads the configuration file and switches to the communication state with the actual device.

[0017] Compared with the prior art, the advantages of this invention are: (1) This solution integrates the power supply, communication, data acquisition, control and protocol conversion required for industrial equipment networking into a compact intelligent control box, realizing "out-of-the-box use and connection", which greatly shortens the deployment cycle and reduces the technical threshold and overall cost.

[0018] (2) This solution provides three mainstream industrial interfaces: DI, DO, and RS485, which can cover the access scenarios of most industrial equipment and has good versatility.

[0019] (3) This solution utilizes the widely covered 4G network, eliminating the limitations of wired cabling and is suitable for various complex and mobile application scenarios.

[0020] (4) This solution, combined with the mini-program control terminal, enables mobile monitoring and operation anytime and anywhere, improving the speed of operation and maintenance response and user experience.

[0021] (5) This solution, by understanding the model parameters of the required connected devices in advance, can simulate the connection in advance before connecting to the smart control box, complete the control logic development, communication testing and protocol verification, complete part of the connection work in advance, and speed up the connection efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the internal structural module connection structure of the intelligent control box of the present invention. Figure 2 This is a schematic diagram of the architecture of the remote monitoring and control system for industrial equipment of the present invention; Figure 3 This is a schematic diagram of the pre-simulation connection process of the intelligent control box of the present invention; Figure 4 This is a schematic diagram of the pre-simulation connection principle of the intelligent control box of the present invention.

[0023] Explanation of the labels in the diagram: 1. Housing; 2. Operational controller; 3. 4G DTU communication module; 4. Digital input (DI) interface; 5. Digital output (DO) interface; 6. RS485 communication interface; 7. Cloud server; 8. Mini-program control terminal; 9. AC / DC power supply module; 10. Pre-analog connection module. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] Please see Figure 1-4 Example 1 is provided: A smart control box for quick access to industrial equipment includes: a box body 1, a cloud server 7 and a mini-program control terminal 8 that work with the smart control box; an AC / DC power module 9, located inside the box body 1, for converting externally input AC power into DC power required by the system; a computing controller 2, located inside the box body 1; and 4G... The DTU communication module 3, located inside the housing 1, communicates with the operational controller 2 and is used to establish a data link with the remote cloud server 7 via a 4G network. The digital input (DI) interface 4, located on the housing 1 and connected to the operational controller 2, is used to collect the switching status signals of the industrial equipment. The digital output (DO) interface 5, located on the housing 1 and connected to the operational controller 2 via a relay, is used to output switching control signals to drive external loads according to control commands. The RS485 communication interface 6, located on the housing 1 and connected to the operational controller 2, is used to connect industrial equipment with an RS485 interface for bidirectional data communication. The cloud server 7 establishes a communication connection with the smart control box via a 4G network, and is used to receive, store, process, and forward data from the smart control box, as well as to issue control commands to the smart control box. The mini-program control terminal 8 runs on a mobile terminal and communicates with the cloud server 7, used to display real-time status data of the industrial equipment to the user and receive user operation commands, which are then sent to the smart control box via the cloud server 7.

[0026] Users connect the switch signal lines of industrial equipment to the digital input DI interface 4, connect the loads to be controlled, such as motor contactor coils, to the digital output DO interface 5, connect intelligent devices such as frequency converters to the RS485 communication interface 6, and connect the intelligent control box to a 220V AC power supply. After power-on, the 4G DTU communication module 3 automatically connects to the Internet and establishes a Socket connection with the preset cloud server 7 IP address.

[0027] This system integrates all functions, including selection, wiring, and debugging of signal isolators, analog acquisition modules, protocol conversion gateways, and communication modules, into one unit. It provides standardized terminal blocks, eliminating the need for field personnel to distinguish complex signal standards. They only need to connect the device's signal lines, such as DI, DO, and AI, to the terminals on the corresponding labels on the intelligent control box, and connect the A / B lines of the RS485 device to the corresponding ports to complete the physical wiring. This solves the problems of complex device selection and cumbersome wiring in traditional solutions. The intelligent control box has a built-in AC / DC power module 9, which can be directly connected to 85V-265V AC power and provides DC power for internal circuits and some external sensors, eliminating the need for an external independent power supply.

[0028] The computing controller has built-in mainstream industrial protocols such as Modbus-RTU library. After power-on, it can automatically attempt to communicate with the connected RS485 slave device and automatically match the protocol parameters according to the response. Alternatively, it can quickly select the device model by scanning the code on the mini-program control terminal 8 and automatically load the preset object model containing data point templates, realizing "connection is communication, power-on is reporting", which greatly reduces the technical threshold. The 4G DTU communication module 3 has a built-in SIM card and automatically registers to the cloud when powered on, without the need for on-site network parameter configuration.

[0029] The lengthy process of integrating traditional distributed systems, which involves multiple stages such as "equipment selection, cabinet installation, hardware wiring, software configuration, network debugging, and cloud integration," has been simplified into three standardized steps: "smart control box fixing, equipment wiring, and power-on scanning." This allows ordinary electricians to complete the deployment without relying on professional automation engineers.

[0030] The device status data collected by the digital input (DI) interface 4 and the device parameter data collected by the RS485 communication interface 6 are uploaded to the cloud server 7 via the 4G DTU communication module 3; and control commands are received from the cloud server 7. The digital output (DO) interface 5 or the RS485 communication interface 6 performs corresponding control operations on the industrial equipment.

[0031] The housing 1 is made of flame-retardant ABS engineering plastic and has an IP30 protection rating. The IP30 protection rating can prevent solid foreign objects with a diameter greater than 2.5mm from entering the equipment. It does not provide special protection against water. The design of the housing 1 is suitable for indoor or sheltered industrial environments.

[0032] Applicable scenarios include: 1. Inside industrial control cabinets / distribution cabinets: The intelligent control box can be directly installed on a standard DIN rail and placed inside the cabinet. The cabinet itself provides secondary protection against water, oil, and finer dust. The IP30 rating of the intelligent control box is sufficient to withstand minor effects from cable stress, metal shavings, or condensation droplets that may occur inside the cabinet; 2. Equipment rooms, control rooms, and monitoring rooms: These environments are typically clean, dry, and have controlled temperature and humidity. IP30 protection mainly prevents the risk of intrusion caused by accidentally dropped tools such as screwdrivers during installation, commissioning, or maintenance; 3. Inside lighting distribution boxes or ventilation equipment control boxes in underground parking garages: The environment is relatively dry and there is no direct rain, but there may be suspended particles carried by ventilation airflow. IP30 protection can effectively prevent larger dust clumps and debris from entering; 4. Sheltered columns or platforms in factory workshops: Installed in areas with roofs or eaves to avoid direct rain and snow, while also protecting against common workshop debris such as flying fluff and insects.

[0033] Compared to blindly pursuing the highest protection level such as IP67 for all scenarios, which only increases cost and size, this design reflects an optimized design approach for the needs of typical industrial IoT edge computing nodes. While ensuring the reliability of most indoor industrial scenarios, it maintains the product's economy and compactness.

[0034] The relay connected to the digital output (DO) interface 5 and the arithmetic controller 2 is either an electromagnetic relay or a solid-state relay, and an electrical isolation circuit is provided between the DO interface and the relay.

[0035] The arithmetic controller 2 is connected to a status indicator unit, which is used to display the working status of the power supply, communication and I / O interfaces.

[0036] The number of digital input (DI) interfaces 4 is at least 4, and the number of digital output (DO) interfaces 5 is at least 2.

[0037] For example, when upgrading a typical factory workshop sewage pumping station with the Internet of Things (IoT), the equipment is simple, requiring only the purchase of a single smart control box. This box is then fixed inside the pumping station's control box. The pump's status, control, and power lines are directly connected to the terminals on the corresponding labels on the side of the smart control box. Once connected to a 220V AC power supply, the smart control box automatically powers on and connects to the network. Maintenance personnel can use a mobile app to scan the QR code on the smart control box, select the "sewage pump" model from the list, and the configuration is complete. The entire process takes less than two hours, greatly improving deployment and commissioning efficiency, and can be operated by ordinary equipment maintenance personnel.

[0038] Please see Figure 1-3 Based on Example 1, the present invention also provides Example 2: The mini-program control terminal 8 provides a graphical interface for dynamically displaying DI / DO status and RS485 device data, and generates virtual control buttons to trigger DO output or RS485 command issuance. The mini-program control terminal 8 subscribes to real-time data from the cloud server 7 via a WebSocket long connection. When the DI channel status changes, such as from low level to high level, the change is pushed to the mini-program control terminal 8 via the smart control box → cloud. The corresponding status indicator on the interface, such as "Device Running", instantly changes from gray to green. The status update delay is usually less than 1 second.

[0039] The cloud server 7 is equipped with a rule engine, which automatically generates control commands based on preset logical conditions and sends them to the smart control box to achieve automated control. The rule engine's operating logic involves acquiring industrial equipment data streams, matching preset rules with trigger control conditions, and sending control commands. After receiving the command, the smart control box's MCU drives the relay corresponding to DO1 to engage. Simultaneously, the smart control box can be configured to immediately report the DO status as a data point, or the mini-program control terminal 8 can actively poll and update it. Within approximately one second, the user can see the "DO1 output" status change to "closed" on the mini-program interface. At the same time, the controlled equipment, such as a motor, starts running, and its operating status feedback is also updated to the mini-program control terminal 8 interface via DI1 or RS485, forming a complete visual closed loop of "command issuance - hardware execution - status feedback".

[0040] For example, this application is applied to the distributed water pump cluster control of a large underground parking garage, enabling rapid access to the control process: An underground parking garage has three water collection wells in areas A, B, and C. Each water collection well is equipped with one main pump, one standby pump, one level float switch, and one smart meter. 1. Fix a smart control box inside the control box of the water collection well in Area A; DI1 channel of digital input interface 4: Connects to the "high water level" dry contact signal of the liquid level float switch, and the internal +24V pull-up of the intelligent control box; DO1 of digital output DO interface 5: Connect to the coil of the main water pump AC contactor with a rated 220V AC and a pulling power ≤50VA; A+ and B- terminals: Connect to the RS485 interface of the smart meter using the Modbus-RTU protocol, address 1, baud rate 9600.

[0041] 2. When connected to a 220V AC power supply, the indicator lights on the smart control box show that the power supply and 4G signal are normal. Its RS485 interface automatically attempts to communicate with the smart meter and successfully reads the voltage and current parameters, confirming protocol compatibility.

[0042] 3. Maintenance personnel use the mobile app control terminal 8 to scan the unique QR code on the outer shell of box 1. The app automatically identifies the device serial number and guides the configuration.

[0043] After the four configurations are submitted, the data from the smart control box immediately appears in the monitoring list of the cloud server 7 and the mini-program control terminal 8. The entire deployment process from unpacking to data upload to the cloud takes about 25 minutes. Compared with the traditional solution that requires integration of PLC, analog quantity module and communication gateway, which usually takes 1-2 days, the deployment efficiency is improved by more than 90%.

[0044] Please see Figure 1-4Based on Example 1, the present invention also provides Example 3: The pre-simulation connection module 10 is located inside the box 1. According to the simulation instructions of the mini-program control terminal 8, it performs pre-simulation connection of the communication connection between the digital input DI interface 4, the digital output DO interface 5 and the RS485 communication interface 6. The pre-simulation connection module 10 includes a device protocol library, a virtual device instance management unit, and a configuration storage unit. Based on the device model information sent by the mini-program control terminal 8, the pre-simulation connection module 10 retrieves the corresponding protocol template, creates a virtual device instance in the operation controller 2, simulates the DI / DO state changes and RS485 communication behavior of the target device, completes control logic verification and communication testing, and saves the verified parameters as a configuration file. After the physical device is connected, the operation controller 2 loads the configuration file and switches to the communication state with the actual device, i.e., the actual operation mode.

[0045] When the operator knows the model of the device to be connected, they can directly select the corresponding device model pre-simulation connection control command on the operation panel of the mini-program control terminal 8. Then, the pre-simulation connection module 10 will build a digital model of the corresponding device based on the selected device model.

[0046] The specific steps for pre-simulating the connection are as follows: The user selects the model of the target industrial equipment through the mini-program control terminal 8 and triggers the "pre-simulation connection" command. This command is forwarded to the 4G DTU communication module 3 via the cloud server 7 and then transmitted to the pre-simulation connection module 10 by the computing controller 2. The pre-simulation connection module 10 retrieves the corresponding communication protocol, register address mapping, data format, and control logic template from the local device protocol library based on the received device model. If no corresponding template is found locally, it requests the template to be downloaded from the cloud server 7 via the 4G DTU communication module 3. The pre-simulation connection module 10 creates a virtual device instance corresponding to the device model in the memory of the arithmetic controller 2; this instance is capable of simulating the following behaviors of the target device: For digital input DI interface 4: simulate the generation of switch status signals, such as high / low level changes, for testing the status acquisition logic of the operational controller 2; For digital output DO interface 5: analog receive the switching control signal output by the arithmetic controller 2 and feedback the expected execution result; For RS485 communication interface 6: Simulate Modbus or other serial communication protocol responses of the target device, and support register read / write operation simulation; IV. The computing controller 2 interacts with the virtual device instance according to the preset control logic or the instructions issued by the user through the mini-program control terminal 8, and completes the following tests: Communication protocol compatibility verification (e.g., baud rate, parity bit, slave address); Verification of register address mapping correctness; Control logic closed-loop verification (e.g., whether DO performs as expected after DI is triggered, and whether RS485 commands return the expected data); 5. After successful verification, the pre-simulation connection module 10 encapsulates the communication parameters used in this test (including protocol type, communication rate, slave address, register mapping table) and the successfully verified control logic into a configuration file, stores it in the non-volatile memory of the arithmetic controller 2, and associates it with the device model.

[0047] VI. After the physical industrial equipment is wired, the user selects the corresponding equipment model and triggers the "Application Configuration" command through the mini-program control terminal 8. The arithmetic controller 2 loads the corresponding configuration file, switches the physical signal paths of the digital input (DI) interface 4, digital output (DO) interface 5, and RS485 communication interface 6 to the actual equipment, and performs data acquisition and command issuance according to the parameters and control logic in the configuration file.

[0048] Among them, the switching mechanism between simulation and actual states: In the pre-simulation connection state, the physical signal paths between the operational controller 2 and the digital input (DI) interface 4, digital output (DO) interface 5, and RS485 communication interface 6 are disconnected via internal software logic switches, and the operational controller 2 only interacts with the virtual device instance. Upon receiving the "Application Configuration" command, the operational controller 2 disconnects from the virtual device instance, restores the signal paths with the physical interfaces, and communicates with the actual industrial equipment according to the configuration file.

[0049] By setting up a pre-simulated connection module 10, this invention allows users to complete communication protocol matching, control logic verification, and communication testing via the mini-program control terminal 8 before the industrial equipment has been physically wired, thus bringing on-site debugging work offline. This mechanism significantly reduces the time spent on repeated wiring and debugging due to protocol mismatch, register address errors, or logic defects. It is particularly suitable for scenarios involving the rapid integration of diverse, small-batch industrial equipment, further improving the efficiency of "plug-and-play" deployment.

[0050] For example, this application is used to connect 10 old machine tools (supporting Modbus RTU over RS485) to a new intelligent control box to achieve data acquisition and remote monitoring; Traditional method: After the machine tool is shut down, the engineer connects the wires on-site, debugs the communication parameters one by one, finds protocol mismatch, modifies the control program, and tests the accuracy of the data. As a result, depending on the number of devices and the connection method, the total time is usually no less than 50 hours.

[0051] The pre-simulation connection method of this application is as follows: before the equipment arrives, the model type can be selected through the mini-program control terminal 8, a pre-simulation connection command can be sent to the pre-simulation connection module 10, the register address consistent with the machine tool can be configured, the intelligent control box can be connected to the simulator, communication test and logic verification can be completed, and the verified parameters can be saved as a template. After the equipment arrives, pre-cast RS485 cables are used for direct connection; pre-verified configuration templates are imported, and the equipment is ready to run upon power-up; only the data needs to be confirmed to be consistent with the actual equipment; in summary, the total time before and after the equipment arrives at the factory is mostly no more than ten hours, which greatly reduces the docking time compared to traditional connection methods.

[0052] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A quick-access intelligent control box for industrial equipment, characterized in that, include: Box body (1), cloud server (7) that works with the smart control box and mini-program control terminal (8); AC / DC power module (9), located inside the housing (1), is used to convert external AC power into DC power required by the system; The arithmetic controller (2) is located inside the housing (1); The 4G DTU communication module (3) is located inside the box (1) and is connected to the computing controller (2) for establishing a data link with the remote cloud server (7) through the 4G network. A digital input (DI) interface (4) is located on the housing (1) and connected to the arithmetic controller (2) for collecting the switching status signals of industrial equipment; A digital output (DO) interface (5) is located on the housing (1) and connected to the operational controller (2) via a relay. It is used to output switch control signals according to control instructions to drive external loads. An RS485 communication interface (6) is provided on the housing (1) and connected to the arithmetic controller (2) for connecting industrial equipment with an RS485 interface to perform bidirectional data communication. The pre-simulation connection module (10) is located inside the box (1). According to the simulation instructions of the mini-program control terminal (8), it performs pre-simulation connection of the communication connection between the digital input DI interface (4), the digital output DO interface (5) and the RS485 communication interface (6). Among them, the cloud server (7) establishes a communication connection with the smart control box through the 4G network, and is used to receive, store, process and forward data from the smart control box, as well as send control commands to the smart control box; The mini-program control terminal (8) runs on a mobile terminal and communicates with the cloud server (7) to display real-time status data of industrial equipment to the user and receive the user's operation instructions, which are then sent to the smart control box via the cloud server (7).

2. The intelligent control box for quick access to industrial equipment according to claim 1, characterized in that: The device status data collected by the digital input DI interface (4) and the device parameter data collected by the RS485 communication interface (6) are uploaded to the cloud server (7) via the 4G DTU communication module (3); and control commands are received from the cloud server (7). The digital output DO interface (5) or RS485 communication interface (6) performs corresponding control operations on the industrial equipment.

3. The intelligent control box for quick access to industrial equipment according to claim 1, characterized in that: The box body (1) is made of flame-retardant ABS engineering plastic.

4. The intelligent control box for quick access to industrial equipment according to claim 1, characterized in that: The relay connected to the digital output DO interface (5) and the arithmetic controller (2) is either an electromagnetic relay or a solid-state relay, and an electrical isolation circuit is provided between the DO interface and the relay.

5. The intelligent control box for quick access to industrial equipment according to claim 1, characterized in that: The arithmetic controller (2) is connected to a status indicator unit, which is used to display the working status of the power supply, communication and I / O interface.

6. The intelligent control system for rapid access to industrial equipment according to claim 1, characterized in that: The mini-program control terminal (8) provides a graphical interface for dynamically displaying DI / DO status and RS485 device data, and generates virtual control buttons for triggering DO output or RS485 command issuance.

7. A rapid access intelligent control system for industrial equipment according to claim 1, characterized in that: The cloud server (7) is equipped with a rule engine, which is used to automatically generate control commands based on preset logical conditions and send them to the smart control box. The operation logic of the rule engine is to obtain industrial equipment data streams, match preset rules and trigger control conditions to send control commands.

8. A rapid access intelligent control system for industrial equipment according to claim 1, characterized in that: The number of digital input (DI) interfaces (4) is at least 4, and the number of digital output (DO) interfaces (5) is at least 2.

9. A rapid access intelligent control system for industrial equipment according to claim 1, characterized in that: The pre-simulation connection module (10) includes a device protocol library, a virtual device instance management unit, and a configuration storage unit. The pre-simulation connection module (10) retrieves the corresponding protocol template based on the device model information sent by the mini-program control terminal (8), creates a virtual device instance in the operation controller (2), simulates the DI / DO status changes and RS485 communication behavior of the target device, completes the control logic verification and communication test, and saves the verified parameters as a configuration file. After the physical device is connected, the operation controller (2) loads the configuration file and switches to the communication state with the actual device.

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