Novel intelligent industrial control device

Abstract

The utility model relates to a novel intelligent industrial control device, which is used for training intelligent control operation talents in higher vocational colleges. Comprising a touch screen, a PLC, a direct-current relay, a frequency converter, a circuit breaker, a switching power supply, a switch and an external wiring terminal strip, the circuit breaker is connected with the switching power supply, the switching power supply is connected with the PLC, the touch screen and the frequency converter, the PLC is connected with the direct-current relay, the direct-current relay is connected with an external wiring terminal, and the PLC, the touch screen and the frequency converter are connected with the switch through network cables. The device is provided with the most advanced equipment, multiple operation modes and automatic control can be achieved, and the operation efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent industrial control devices, and specifically relates to a new type of intelligent industrial control device for training intelligent control operation talents in higher vocational colleges. Background Art

[0002] Higher vocational colleges shoulder the important task of cultivating front-line intelligent control operation talents for enterprises. However, the problem of the renewal of intelligent control equipment in higher vocational colleges is relatively prominent. Taking Siping Vocational University as an example, the intelligent industrial control training room in our school was purchased in 2013 and has not been updated yet. The touch screen and programmable logic controller in this set of devices do not have network communication functions, cannot perform network communication, and cannot meet the needs of current intelligent manufacturing. This results in students being unable to truly come into contact with the latest intelligent control equipment during the training process and unable to master the latest technologies and operation methods.

[0003] Therefore, developing a multi-functional intelligent industrial control device is the key to solving the problem of outdated intelligent control equipment in our school. Content of the Utility Model

[0004] The purpose of the utility model is to provide a new type of intelligent industrial control device, which is equipped with the most advanced equipment, modular and intelligent, and improves the control accuracy and response speed of the device.

[0005] The technical solution of the utility model:

[0006] A new type of intelligent industrial control device includes a touch screen, a PLC, a DC relay, a frequency converter, a circuit breaker, a switching power supply, a switch and an external wiring terminal block. The circuit breaker is connected to the switching power supply, the switching power supply is connected to the PLC, the touch screen and the frequency converter, the PLC is connected to the DC relay, the DC relay is connected to the external wiring terminal, and the PLC, the touch screen and the frequency converter are connected to the switch through network cables.

[0007] The beneficial effects of the utility model:

[0008] 1. Intelligent design: Equipped with the most advanced equipment, it can realize multiple operation modes and automatic control, improving operation efficiency and accuracy.

[0009] 2. Modular design: The device adopts a modular design, and each functional module is independent of each other, which is convenient for assembly and disassembly. This design makes the device more flexible, can expand functions according to actual needs, and improves the maintainability of the device.

[0010] 3. Versatility: Cooperating with other functional modules, it can not only meet the teaching needs of students, but also support the development of competition certificate projects, the conduct of scientific research experiments and the needs of social training.

[0011] 4. Practical operation platform: The device provides a practical operation platform, which can simulate a real industrial production environment, enabling students to carry out actual operations and experiments. Through the practical operation platform, students can better master industrial control technology and cultivate their practical operation ability. Brief description of the drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0013] Figure 1 It is a block diagram of the new intelligent industrial control device of this application.

[0014] Figure 2 It is a training schematic diagram of the new intelligent industrial control device of this application.

[0015] Reference numerals:

[0016] Touch screen 1; PLC 2; DC relay 3; Inverter 4; Circuit breaker 5; Switching power supply 6; External wiring terminal block 7. Detailed implementation manners

[0017] In order to solve the problems that the training device is backward in equipment and technology and cannot meet the needs of students and enterprise training personnel to master the latest technologies and operation methods, our teaching team has completed this modular and intelligent intelligent industrial control device composed of the most advanced industrial control equipment, the latest industrial control software, and the latest communication networking methods.

[0018] The existing intelligent control devices in the school training room adopt the Yalong YL-360B series programmable control training devices. The devices mainly include Mitsubishi FX3U-48MR programmable controllers, 7062K series touch screens, Mitsubishi E700 inverters and some auxiliary function modules. The connection between these components is very inconvenient: the 7062K series touch screen is connected to the upper computer through a USB cable, and the communication line between the Mitsubishi FX3U-48MR programmable controller and the computer uses the RS232 communication method. After the program is downloaded, the RS232 communication line needs to be unplugged from the COM port of the computer and then inserted into the COM port of the 7062K series touch screen to complete the communication between the 7062K series touch screen and the Mitsubishi FX3U-48MR programmable controller. Frequent plugging and unplugging of the communication line is likely to damage the COM port, resulting in equipment failures and increasing maintenance costs. The Mitsubishi E700 inverter lacks a LAN communication port, which limits the flexibility and expandability of the connection. The peripheral hard wiring of the Mitsubishi FX3U-48MR programmable controller only has the external terminal control connection method. If the FX3U-48MR programmable controller has no AD module, it is impossible to collect analog quantities, making the control function incomplete. The 7062K series touch screen of this device cannot be directly connected to the Mitsubishi E700 inverter and can only be connected to the Mitsubishi FX3U-48MR programmable controller respectively. Data exchange is carried out through the Mitsubishi FX3U-48MR programmable controller. The 7062K series touch screen cannot exchange information with the Mitsubishi E700 inverter and must first exchange through the Mitsubishi FX3U-48MR programmable controller, which affects work efficiency and makes the connection more complex. Especially when the number of inverters is large, this connection disadvantage is more obvious. In addition, this set of devices is not equipped with a power supply, a switch and a DC relay, and the operation is cumbersome.

[0019] The present application will be described in detail below with reference to the accompanying drawings:

[0020] A new type of intelligent industrial control device includes a touch screen 1, a PLC 2, a DC relay 3, an inverter 4, a circuit breaker 5, a switching power supply 6, a switch and an external wiring terminal block 7. The circuit breaker 5 is connected to the switching power supply 6. The switching power supply 6 is connected to the PLC 2, the touch screen 1 and the inverter 4. The PLC 2 is connected to the DC relay 3. The DC relay 3 is connected to the external wiring terminal 7. The PLC 2, the touch screen 1 and the inverter 4 are connected to the switch through network cables.

[0021] The touch screen model is TPC7022Ni, the PLC model is SIMATICS7-200SMART CPU SR30 Siemens programmable controller, the inverter model is FR-CS84 Mitsubishi inverter, the circuit breaker model is DZ47-60D20, and the switch is an Ethernet switch.

[0022] The touch screen of the new intelligent industrial control device in this application is the most advanced TPC of Kunlun Tongtai Company, with the model number TPC7022Ni. The TPC7022Ni touch screen supports 4G wireless communication and WiFi communication. It can connect to the 4G network by inserting a SIM card or connect to the wireless network by installing a WiFi antenna. In addition, this touch screen also supports remote debugging. Through the MCGS debugging assistant software, a VPN channel can be established among the "PC / mobile phone client <——> VPN server <——> touch screen" to achieve the remote debugging function. This set of devices uses LAN (Local Area Network) communication and is connected to the wired network through an Ethernet interface.

[0023] The Siemens programmable controller selects the most advanced SIMATIC S7-200 SMART CPU SR30 in current medium and small systems. The advantages of this device compared with the previous devices are as follows: 1. Ethernet interface: The CPU module body is standard-equipped with an Ethernet interface, which can be used to transmit programs with ordinary network cables, convenient and fast, and eliminating the need for programming cables. Through the Ethernet interface, it can also communicate with other CPU modules, touch screens, computers, etc., and easily form a network. 2. High-speed chip: This device is equipped with a Siemens high-speed processor chip, and the basic instruction execution time can reach 0.15 μs, leading in the same-level small PLCs, and can easily handle cumbersome program logics and complex process requirements. 3. Option expansion: The novel signal board design can expand communication ports, digital quantity channels, and analog quantity channels. Without occupying additional space in the electric control cabinet, the signal board expansion can better fit the actual configuration of users, improve the utilization rate of products, and at the same time reduce the expansion cost of users.

[0024] The selected inverter is the FR-CS84 series, which is a small intelligent inverter of Mitsubishi inverters, equipped with communication interfaces such as RS485 for data exchange with external devices. It is more convenient to communicate than the original E700 series. Due to its built-in Modbus-RTU protocol, it can communicate with other devices that support this protocol. When using the communication function, the I / O terminals of the inverter can be controlled through the remote output function of the PLC. Compared with the original E700 series, the advantages of the FR-CS84 series are mainly reflected in the following aspects: Smaller size: The volume of the FR-CS84 series is 57% of that of Mitsubishi's equivalent models, saving more space. More flexible installation method: The positions and quantities of the installation screw holes of the FR-CS84 series are different from those of the E700 series, making it more flexible during installation. Richer functions: The FR-CS84 series has functions such as triangular wave function, strong excitation deceleration, PID control, and regeneration avoidance function, while the E700 series has functions such as flux vector control, PID control, and flexible PWM.

[0025] Considering the use of this device, 8 DC relays are configured at the output end of the PLC, increasing the control flexibility of the output end. This enables both AC and DC loads to be effectively driven and controlled, broadening the range of device types that can be driven. The action speed of DC relays is relatively fast, with timely response, allowing for relatively precise control. At the same time, this configuration also helps improve the reliability and stability of the system, enabling it to adapt well to different application scenarios and load conditions. It provides guarantees for the application of the device in various complex environments and can meet the diverse output control requirements of different users.

[0026] The circuit breaker model of this application is DZ47-60 D20. Its main functions are as follows: 1. Overload protection: When the current in the circuit exceeds the rated current of the circuit breaker (such as 20A) for a certain period of time, the circuit breaker will automatically trip to prevent situations such as overheating of the circuit and damage to equipment caused by excessive current, thus protecting the electrical circuit and equipment from overload damage. 2. Short-circuit protection: In the event of a serious short-circuit fault in the circuit, it can quickly cut off the circuit to avoid the expansion of the fault range and prevent serious consequences such as electrical fires. 3. Isolation of power supply: The circuit breaker can be manually operated to disconnect and isolate the circuit from the power supply, facilitating equipment maintenance and repair work.

[0027] A switching power supply is separately configured in the device. The input AC voltage range of this switching power supply is 100 - 240V, the input AC current is 2.1A, the output DC voltage is 24V, and the output DC current is 4.5A. A switching power supply is a power device that converts AC power into DC power, and its function is to provide a stable DC power supply for other electronic devices. In this device, the switching power supply provides the required 24V DC power supply for devices such as the FR-CS84 series Mitsubishi inverters, Siemens programmable controller SIMATIC S7-200 SMART CPU SR30 devices, and TPC7022Ni touch screens to ensure their normal operation. At the same time, the functions of the switching power supply in this device also include isolation and protection: achieving electrical isolation between the input and output, and playing a certain role in overvoltage, overcurrent, etc. protection for the backend devices.

[0028] In this device, the switch used is a common Ethernet switch, which can perform data transmission between 24 port pairs at the same time. Each port can be regarded as an independent network segment and does not need to compete with other devices for use. The Ethernet switch mainly has the following functions here: 1. Connect different devices: It can connect various devices in the device (such as frequency converters, controllers, touch screens, etc.) together through Ethernet interfaces to form a local area network. 2. Data exchange and communication: It realizes fast and efficient data exchange and communication between devices, ensuring that information can be transmitted between devices in a timely and accurate manner. 3. Improve network bandwidth: It allows multiple ports to perform data transmission simultaneously, avoiding data congestion and improving the bandwidth and transmission efficiency of the entire network. 4. Network expansion: It is convenient to add other Ethernet devices to the network later, with good scalability and compatibility. 5. Data isolation and distribution: It isolates and distributes data according to the set rules, enabling each device to accurately obtain the data it needs.

[0029] Finally, it is emphasized that to realize the connection and configuration of the FR-CS84 series Mitsubishi frequency converters, Siemens programmable controller SIMATIC S7-200 SMART CPU SR30 device and TPC7022Ni touch screen, the following steps need to be taken: 1. Determine the connection method: According to the interface type and requirements of the device, determine the appropriate connection method. The connection methods include cable connection, communication interface connection, etc. 2. Connect the power supply: Connect the circuit breaker to the three-phase AC power supply to ensure normal power supply. 3. Connect the FR-CS84 series Mitsubishi frequency converter: According to the interface requirements of the frequency converter, use the appropriate cable to connect it to the switching power supply. 4. Connect the Siemens programmable controller SIMATIC S7-200 SMART CPU SR30 device: Similarly, according to the interface requirements of the controller, use the appropriate cable to connect it to the switching power supply. Connect the TPC7022Ni touch screen: According to the interface type of the touch screen, select the appropriate connection method to connect it to the switching power supply. 5. Set parameters and program: According to the instructions and requirements of each device, perform corresponding parameter settings and programming. This can include setting the operating parameters of the frequency converter, the logic programming of the controller, the interface design of the touch screen, etc. 6. Perform communication configuration: If communication between devices needs to be realized, such as communication between the touch screen and the controller, perform corresponding configuration according to the communication protocol of the device. 7. Test and debug: After completing the connection and setting, perform system testing and debugging. Check the operating status of each device and whether the communication is normal to ensure that the system can work as expected.

[0030] This new intelligent industrial control device of the present application solves the following problems:

[0031] 1. Compatibility problem: It solves the problem of poor compatibility with different hardware devices and software systems, and realizes a wider range of adaptation.

[0032] 2. Insufficient precision: The precision of data acquisition and control has been improved.

[0033] 3. Poor stability: The new hardware has improved the stability of the device operation and reduced the probability of failures and errors.

[0034] 4. Limited scalability: Better scalability is provided, facilitating the addition of new functional modules and device connections.

[0035] 5. Complicated operation: The hardware design or interaction method has been simplified, making the operation and use more convenient and reducing the learning cost.

[0036] 6. Hardware aging: Various problems caused by hardware aging and wear due to long-term use of old devices have been solved.

[0037] The new intelligent industrial control device of this application has the following innovations:

[0038] 1. Wider adaptability: The new device may solve the compatibility problems with different hardware devices and software systems and can be connected and communicate with more types of devices.

[0039] 2. High-speed data transmission: More advanced communication technologies are adopted to improve the speed and efficiency of data transmission, ensuring real-time performance and accuracy.

[0040] 3. Modular design: The hardware adopts a modular design, facilitating users to combine and expand according to different needs, and improving the scalability and adaptability of the device.

[0041] 4. Industrial-level connection standard: Follow the industrial-level connection standard to ensure the stability and reliability of the connection and be able to adapt to complex industrial environments.

[0042] 5. Remote connection and control: Support remote connection and control, facilitating users to conduct remote monitoring, debugging and maintenance, and improving work efficiency and convenience.

[0043] The embodiments include the following aspects:

[0044] 1. Teaching application: The device can be used for the teaching of industrial control-related courses. Students can better understand and master the principles and technologies of intelligent industrial control through actual operations. The teaching materials supporting the device are the "MCGS Embedded Edition Configuration Application Technology 2nd Edition", a national vocational education planning textbook for the 14th Five-Year Plan, edited by Professor Liu Changguo, the inventor.

[0045] 2. Competition Certificate Training: This device can be used as training equipment for the "Installation and Commissioning of Electrical Control Systems" and "Industrial Network Competition" in the Skills Competition of Vocational Colleges in Jilin Province. In addition, this set of devices can also be used as training devices for vocational qualification examinations such as the "1+X" Programmable Logic Controller System Application Programming Vocational and Technical Level Certificate, giving play to the function of integrating "competition and certificate".

[0046] 3. Scientific Research: This device can be used as a research platform in the field of intelligent industrial control. It provides a variety of programmable interfaces and development environments, facilitating researchers to conduct algorithm development and system optimization. At the same time, it supports data acquisition and storage functions, providing valuable experimental data for researchers.

[0047] 4. Social Vocational Training: This device can be used for industrial control-related vocational training and skill improvement in society. The intuitive operation interface and real-time data display help participants quickly master and understand industrial control technology, improving operation and troubleshooting capabilities.

[0048] The above has schematically described the present utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and without departing from the content of the technical solution of the present utility model, and design structures and implementations similar to this technical solution without creative efforts based on the technical essence of the present utility model, they shall all fall within the protection scope of the present utility model.

Claims

1. A new type of intelligent industrial control device, which is used for industrial automation control, scientific research and development or vocational skill training, supports industrial-level real-time data interaction and remote operation and maintenance, and is characterized in that: It includes a touch screen, a PLC, a DC relay, a frequency converter, a circuit breaker, a switching power supply, a switch, and an external wiring terminal block. The circuit breaker is connected to the switching power supply. The circuit breaker is DZ47-60 D20, with overload protection, a rated current of 20A, short-circuit protection, and a manual isolation power supply function. The input voltage range of the switching power supply is 100-240V AC, and it outputs 24VDC / 4.5A, with input-output electrical isolation. The switching power supply is connected to the PLC, the touch screen, and the frequency converter, providing isolated DC power for the PLC, the touch screen, and the frequency converter. The PLC is connected to the DC relay, and the DC relay is connected to the external wiring terminal. The PLC drives the external wiring terminal block through the eight-way output of the DC relay, supporting AC / DC loads. The PLC, the touch screen, and the frequency converter are connected to the switch through network cables. The switch is an Ethernet switch, supporting 24-port concurrent data transmission. The PLC, the touch screen, and the frequency converter form a local area network through network cables with the switch to achieve real-time data interaction between devices. The touch screen is a Kunlun Tongtai TPC7022Ni, supporting 4G wireless communication, WiFi communication, and realizing remote debugging function through VPN. The PLC is a Siemens SIMATIC S7-200 SMART CPUSR30, equipped with a high-speed processor chip and a signal board expansion interface, with a basic instruction execution time ≤0.15μs, and can expand communication ports, digital / analog channels. The frequency converter is a Mitsubishi FR-CS84, with a built-in Modbus-RTU protocol, communicating with the PLC through an RS485 interface, supporting triangular wave function, strong excitation deceleration, and PID control.

Images