Crude foil engine control system and network structure thereof

Abstract

The invention relates to the field of crude foil engines, and discloses a crude foil engine control system and a network structure thereof, and the system comprises a crude foil engine PLC, execution equipment, sensing equipment, operation equipment, and a first switch. The execution equipment is used for directly controlling the operation of the crude foil engine; the sensing equipment is used for acquiring environment parameters and an operation state of the crude foil engine; the operation equipment is used for interaction between a user and the PLC; the crude foil engine PLC is used for receiving a signal from the sensing equipment through the first exchange, processing the signal and then outputting a control signal to the execution equipment; and the execution equipment and the crude foil engine PLC adopt an EtherCAT looped network structure. The network structure of the crude foil engine control system adopts an EtherCAT ring network structure, a mode of configuring a virtual server by an industrial router is adopted, and data security isolation of a main equipment network, a DCS data decision network and an AGV auxiliary equipment network is realized through each independent gateway and network port number.

Description

Technical Field

[0001] The present invention relates to the field of foil production machines, and relates to data exchange between an independent control system of foil production machines in electrolytic copper foil production and a production process automation system and a factory information system, and information interaction between execution devices, and in particular to a foil production machine control system and its network structure. Background Art

[0002] In the context of the Industrial Internet, sensor networks are increasingly being used, mainly due to their high-speed transmission, low latency, high reliability, and flexible topology, which make Industrial Ethernet an ideal choice for data transmission in the field of industrial automation.

[0003] Although modern network structures such as industrial Ethernet can reduce the risk of single communication line damage through redundant design, single point failure is still a serious problem in some traditional systems. If a major communication line fails, it may cause the entire production equipment to shut down, thus affecting the efficiency of the entire production line.

[0004] In addition, high-speed transmission and real-time data exchange also increase the risk of network attacks. The network security issues faced by industrial Ethernet, such as malware, network attacks and data theft, may affect the safety and stability of the production process. Summary of the invention

[0005] The main purpose of the present invention is to solve the technical problems in the prior art that single point failures and network attacks affect the safety and stability of the production process. A foil production machine control system includes:

[0006] Foil machine PLC, execution equipment, sensor equipment, operation equipment, first switch;

[0007] The execution device is used to directly control the operation of the foil production machine;

[0008] The sensor device is used to obtain the environmental parameters and operating status of the foil machine;

[0009] The operating device is used for interaction between the user and the PLC;

[0010] The foil machine PLC is used to receive a signal from a sensor device through a first exchange, process the signal, and then output a control signal to an execution device;

[0011] The execution equipment and the foil production machine PLC adopt an EtherCAT ring network structure.

[0012] The foil machine PLC master station sends Ethernet frames to each slave station. The slave station extracts data from the data frame or inserts data into the data frame, and then transmits the data frame to the next EtherCAT slave station. The last EtherCAT sends back a fully processed message and the first slave station transmits it to the master station as a response message.

[0013] The slave station adopts a receive-and-forward mechanism, and Ethernet frames can pass in both directions. Only when the Ethernet frame enters from the downlink telegram direction will the corresponding message be processed. If the designated forwarding network port is not connected, the slave station controller will automatically return the Ethernet frame along the original input path.

[0014] The control system also includes an electrolytic DC power supply device and a second switch, wherein the electrolytic DC power supply device is used to provide DC current for the foil production machine during production. The direct network cable between the second switch and the first switch transmits the electrolytic power supply device data and operations to the foil production machine by setting an IP address in the same network segment.

[0015] The control system also includes a router, a factory DCS system, and an AGV system; the direct network cable between the first switch and the router realizes data exchange between a single foil machine and the factory DCS system and the AGV system through the configuration of a virtual server.

[0016] The execution equipment includes a cathode roller servo driver, a winding roller servo driver, an upper liquid roller servo driver, a lower liquid roller servo driver, a polishing frequency converter, and a polishing swing frequency converter.

[0017] The sensing equipment includes a winding tension amplifier, an inter-slot tension amplifier, left and right conductive copper ring temperature acquisition modules, and an oven temperature acquisition module.

[0018] The operating equipment comprises a foil machine operating touch screen and a polishing touch screen.

[0019] A foil production machine control network structure, comprising:

[0020] Foil machine PLC, execution equipment, sensor equipment, operation equipment, first switch;

[0021] The execution device is used to directly control the operation of the foil production machine;

[0022] The sensor device is used to obtain the environmental parameters and operating status of the foil machine;

[0023] The operating device is used for interaction between the user and the PLC;

[0024] The foil machine PLC is used to receive a signal from a sensor device through a first exchange, process the signal, and then output a control signal to an execution device;

[0025] The execution equipment and the foil production machine PLC adopt an EtherCAT ring network structure.

[0026] The present invention has the following beneficial effects:

[0027] The network structure of the foil machine control system of the present invention adopts an EtherCAT ring network structure, adopts an industrial-grade router to configure a virtual server, and realizes data security isolation of a main device network, a DCS data decision network, and an AGV auxiliary device network through independent gateways and network port numbers.

[0028] The network structure of the foil production machine control system of the present invention safely isolates the core production equipment on the basis of ensuring necessary data interaction, thereby avoiding network conflicts, network security and other problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the control system of the foil production machine of the present invention. Figure 2 Figure 1.2.1 shows the interface for configuring a virtual server. Figure 3 This is the EtherCAT ring network structure diagram.

[0030] Figure numerals: 1. cathode roller servo driver, 2. winding roller servo driver, 3. liquid roller servo driver, 4. liquid roller servo driver, 5. polishing inverter, 6. polishing swing inverter; 7. winding tension amplifier, 8. slot tension amplifier, 9. left and right conductive copper ring temperature acquisition module, 10. oven temperature acquisition module 11. foil machine operation touch screen, 12. polishing touch screen. DETAILED DESCRIPTION

[0031] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] For ease of understanding, the specific process of the embodiment of the present invention is described below. Figure 1 The first embodiment of the network structure of the control system of the foil production machine in the embodiment of the present invention includes:

[0033] The present invention discloses a network structure of a foil production machine control system. Network structure node ( Figure 1 ) includes a 10-port switch for automatic control of the foil machine's intranet, a router for data connection between the foil machine and the DCS system and AGV system, and a 5-port switch for data exchange between the foil machine and the electrolytic power supply equipment.

[0034] The control core PLC of the raw foil machine communicates with the sensors and execution operation equipment of the raw foil machine through the switch, including execution equipment (1, cathode roller servo driver, 2, winding roller servo driver, 3, liquid upper roller servo driver, 4, liquid lower roller servo driver, 5, polishing inverter, 6, polishing swing inverter); sensor equipment (7, winding tension amplifier, 8, slot tension amplifier, 9, left and right conductive copper ring temperature acquisition module, 10, oven temperature acquisition module); operation equipment (11, raw foil machine operation touch screen, 12, polishing touch screen);

[0035] The direct network cable between the 10-port switch and the router enables data exchange between a single foil machine and the factory DCS system and AGV system through the configuration of a virtual server.

[0036] The direct network cable between the 5-port switch and the 10-port switch transmits the electrolytic power supply equipment data and operations to the foil machine operation terminal by setting the IP address of the same network segment.

[0037] Specifically:

[0038] Foil machine PLC: As the core of the system, PLC is responsible for processing signals from sensor devices, including environmental parameters and equipment status. It executes control logic and generates output control signals based on real-time data to command the operation of the execution equipment.

[0039] The first switch and the second switch: These two switches form the infrastructure of the network, allowing efficient data transmission between different devices. The first switch is mainly used to connect PLC, actuators and sensor devices, while the second switch is responsible for the connection with the electrolytic DC power supply device.

[0040] Router and virtual server: The router connects the foil machine system with the factory's DCS system and AGV system through the Internet or LAN. The virtual server is used to configure data exchange to ensure that information between different systems can be seamlessly transmitted and achieve integrated management.

[0041] The executive equipment is responsible for directly controlling the operation of the foil machine, including:

[0042] Servo drive:

[0043] Cathode roller servo drive: controls the rotation of the cathode roller, affecting the thickness and surface quality of the raw foil.

[0044] Winding roller servo drive: responsible for the winding process of the raw foil, maintaining appropriate tension and speed.

[0045] Liquid upper roller servo drive, liquid lower roller servo drive: control liquid transmission and roller coordination to ensure uniformity of raw foil.

[0046] Frequency Converter:

[0047] Polishing inverter: adjusts the rotation speed during the polishing process and affects the surface smoothness of the raw foil.

[0048] Polishing and grinding swing frequency converter: controls the frequency and amplitude of polishing and grinding swing to improve the surface treatment effect of raw foil.

[0049] Sensor equipment is used to monitor the environment and operating status of the foil machine to ensure the stability of the production process and product quality:

[0050] Tension amplifier:

[0051] Winding tension amplifier: real-time monitoring of the tension changes of the raw foil during the winding process to ensure the stability of the product during winding.

[0052] Inter-slot tension amplifier: monitors the tension of the raw foil during processing to prevent unevenness.

[0053] Temperature acquisition module:

[0054] Left and right conductive copper ring temperature acquisition module: monitors the temperature around the roller to prevent overheating from affecting the quality of raw foil.

[0055] Oven temperature acquisition module: ensures that the temperature during the drying process remains within the appropriate range to ensure the dryness and stability of the raw foil.

[0056] The operating device provides users with an interactive interface with the PLC, allowing operators to easily monitor and adjust the production process:

[0057] Foil machine operation touch screen: allows users to set operating parameters, view production status and alarm information, and simplify the operation process.

[0058] Polishing touch screen: dedicated to the control of polishing process, the operator can adjust the polishing speed, amplitude and other parameters on this interface.

[0059] The stability of the foil machine has been improved by designing a ring network for important control equipment. While ensuring information sharing, the foil machine is isolated from other factory equipment such as office equipment through a router, avoiding network conflicts, network security and other issues that may affect the operation of the foil machine.

[0060] In a specific embodiment, the schematic diagram of the network structure of the foil production machine of this embodiment is as follows: Figure 1 shown.

[0061] Execution equipment (1. Cathode roller servo driver, 2. Winding roller servo driver, 3. Liquid upper roller servo driver, 4. Liquid lower roller servo driver, 5. Polishing inverter, 6. Polishing swing inverter);

[0062] Sensing equipment (7, winding tension amplifier, 8, inter-slot tension amplifier, 9, left and right conductive copper ring temperature acquisition module, 10, oven temperature acquisition module);

[0063] Operating equipment (11, foil machine operating touch screen, 12, polishing touch screen);

[0064] Electrolytic DC power supply equipment;

[0065] The network IP of the above production equipment is set to the same network segment, network segment: 192.168.1.X. The core control unit uses EtherCAT ring network to connect each node end to end. All execution devices are in the control area of ​​the ring network. The communication disconnection of any node will not affect the data communication between other nodes and the foil machine PLC, which ensures that the foil equipment will not suddenly stop due to node communication failure.

[0066] In the control of the foil machine, the core signals are all sent and received through the EtherCAT network. The winding tension, the winding roller servo and the cathode roller servo form a small closed-loop control, the inter-slot tension, the liquid upper and liquid lower roller servo form another small closed-loop control, and the entire foil machine power roller system forms a large closed-loop control. The control goal is to control the stability of the winding tension and the inter-slot tension by adjusting the torque output of the winding roller, cathode roller, liquid upper and liquid lower rollers. At the same time, through program optimization, the torque control output is smooth to avoid torque mutations.

[0067] The network IP of each node of the DCS system is set to the same network segment, such as: 10.6.128.X, port number: 502;

[0068] The network IP of each node of the AGV material transportation system is set to the same network segment, such as: 192.168.1.X, port number: 503;

[0069] The network IP of each node of the DC power control system is set to the same network segment, such as: 192.168.0.X, port number: 8000;

[0070] like Figure 2As shown, each network segment is physically connected through an industrial router, a virtual server is configured, a gateway and a dedicated port number are set, and mapping network addresses and data forwarding that need to be interacted are configured to achieve interaction of specific data among the three networks and isolate non-communication shared data.

[0071] like Figure 3 The data transmission method of the EtherCAT ring network structure is as follows: the foil machine PLC master station sends Ethernet frames to each slave station, the slave station extracts data from the data frame or inserts data into the data frame, and then transmits the data frame to the next EtherCAT slave station. The last EtherCAT sends back a completely processed message and the first slave station transmits it to the master station as a response message; the slave station adopts a receiving and forwarding mechanism, and the Ethernet frame can pass in both directions. Only when the Ethernet frame enters from the downlink telegram direction, the corresponding message will be processed. If the designated forwarding network port is not connected, the slave station controller will automatically return the Ethernet frame along the original input path. The EtherCAT data frame of the EtherCAT ring network uses the MAC frame in Ethernet V2 format. The EtherCAT data frame contains multiple EtherCAT sub-messages, and each sub-message addresses an independent device storage area.

[0072] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device, or unit can refer to the corresponding process in the aforementioned method embodiment and will not be repeated here.

[0073] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program codes.

[0074] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foil machine control system, characterized in that: include: Foil machine PLC, execution equipment, sensor equipment, operation equipment, first switch; The execution device is used to directly control the operation of the foil production machine; The sensor device is used to obtain the environmental parameters and operating status of the foil machine; The operating device is used for interaction between the user and the PLC; The foil machine PLC is used to receive a signal from a sensor device through a first exchange, process the signal, and then output a control signal to an execution device; The execution equipment and the foil production machine PLC adopt an EtherCAT ring network structure.

2. A foil machine control system according to claim 1, characterized in that: The data transmission mode of the EtherCAT ring network structure is: The foil machine PLC master station sends Ethernet frames to each slave station. The slave station extracts data from the data frame or inserts data into the data frame, and then transmits the data frame to the next EtherCAT slave station. The last EtherCAT sends back a fully processed message and the first slave station transmits it to the master station as a response message. The slave station adopts a receive-and-forward mechanism, and Ethernet frames can pass in both directions. Only when the Ethernet frame enters from the downlink telegram direction will the corresponding message be processed. If the designated forwarding network port is not connected, the slave station controller will automatically return the Ethernet frame along the original input path.

3. A foil machine control system according to claim 1, characterized in that: The EtherCAT data frame of the EtherCAT ring network uses a MAC frame in Ethernet V2 format. The EtherCAT data frame includes multiple EtherCAT sub-messages, and each sub-message addresses an independent device storage area.

4. A foil machine control system according to claim 1, characterized in that: The control system also includes an electrolytic DC power supply device and a second switch, wherein the electrolytic DC power supply device is used to provide DC current for the foil production machine during production. The direct network cable between the second switch and the first switch transmits the electrolytic power supply device data and operations to the foil production machine by setting an IP address in the same network segment.

5. A foil production machine control system according to claim 1, characterized in that: The control system also includes a router, a factory DCS system, and an AGV system; the direct network cable between the first switch and the router realizes data exchange between a single foil machine and the factory DCS system and the AGV system through the configuration of a virtual server.

6. A foil machine control system according to claim 1, characterized in that: The execution equipment includes a cathode roller servo driver, a winding roller servo driver, an upper liquid roller servo driver, a lower liquid roller servo driver, a polishing frequency converter, and a polishing swing frequency converter.

7. A foil machine control system according to claim 1, characterized in that: The sensing equipment includes a winding tension amplifier, an inter-slot tension amplifier, left and right conductive copper ring temperature acquisition modules, and an oven temperature acquisition module.

8. A foil production machine control system according to claim 1, characterized in that: The operating equipment comprises a foil machine operating touch screen and a polishing touch screen.

9. A foil production machine control network structure, characterized in that: include: Foil machine PLC, execution equipment, sensor equipment, operation equipment, first switch; The execution device is used to directly control the operation of the foil production machine; The sensor device is used to obtain the environmental parameters and operating status of the foil machine; The operating device is used for interaction between the user and the PLC; The foil machine PLC is used to receive a signal from a sensor device through a first exchange, process the signal, and then output a control signal to an execution device; The execution equipment and the foil production machine PLC adopt an EtherCAT ring network structure.

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