Fully automatic operation system of aluminum molten ladle in front of casting furnace based on remote control technology

Abstract

The present invention discloses a fully automatic operation system for lifting molten aluminum ladles in front of a casting furnace based on remote control technology, comprising an overhead crane control system, a video monitoring system, an aluminum ladle dumping control system, a rotating lifting ring, and an information system. The fully automatic operation system for lifting molten aluminum ladles in front of a casting furnace based on remote control technology can enable an operator to confirm the operation of the overhead crane with one button in the control room. Subsequently, the overhead crane's trolley mechanism, trolley mechanism, lifting mechanism, and rotating lifting ring will automatically operate according to the program, automatically lifting the aluminum ladle from a transport vehicle to a tipping device. At the same time, the tipping device is upgraded and modified to be equipped with an automatic tipping system to achieve fully automatic tipping of the aluminum ladle. A video monitoring system is added to the central control system to remotely monitor and control it. Ultimately, personnel are kept away from the dangerous environment of the on-site lifting of the ladles, protecting their personal health and life safety.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic operation control in front of a casting furnace, and in particular to a fully automatic operation system for lifting a molten aluminum ladle in front of a casting furnace based on remote control technology. Background Art

[0002] Currently, the operation control method in front of the casting furnace is to manually control the overhead crane in front of the furnace using a remote control from the ground. During daily production, the aluminum ladle is lifted from the aluminum ladle transport vehicle, lifted to the furnace front tipping device, and then lowered. The molten metal in the aluminum ladle is then dumped into the casting furnace using the remote control of the tipping device. The overhead crane is then controlled to lift the aluminum ladle back from the tipping device to the aluminum ladle transport vehicle. A major drawback of this current operation method is that the entire operation of the overhead crane, whether it is the operation of the trolley, the operation of the trolley, the raising and lowering of the hook, and the raising and lowering of the tipping device, requires manual remote control. A person is required to follow the movement of the aluminum ladle and the overhead crane, and manually rotate the direction of the aluminum ladle using tools such as crowbars. This is labor-intensive and cannot be optimized in terms of manpower allocation. In addition, the person is very close to the hot aluminum liquid, which poses a significant safety risk. Summary of the Invention

[0003] The present invention aims to overcome the problems in the prior art that the operations in front of the casting furnace require manual remote control, which is labor-intensive and the personnel are very close to the high-temperature molten aluminum, posing a great safety risk. The present invention provides a fully automatic operation system for lifting molten aluminum ladles in front of the casting furnace based on remote control technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The fully automatic operation system for lifting molten aluminum ladles in front of a casting furnace based on remote control technology includes a crane control system: realizing spatial positioning and operation data monitoring of the crane, and realizing automatic or manual control of the crane through remote signal instructions; a video monitoring system: realizing observation and monitoring of the working status of the crane through a camera; a ladle dumping control system: setting dumping parameters and steps according to the capacity of the ladle, realizing uniform dumping of the molten aluminum; a rotating lifting ring: an integrated rotating lifting device with both lifting and rotating functions; and an information system: realizing communication, information entry, information recording, and information flow tracking among the crane control system, the video monitoring system, the ladle dumping control system, and the rotating lifting ring. The fully automatic operation system for lifting molten aluminum ladles in front of a casting furnace based on remote control technology of the present invention can realize the operation confirmation of the crane start-up by an operator in the control room with one button, and then the crane's trolley mechanism, the trolley mechanism, the lifting mechanism, and the rotating lifting ring will automatically operate according to the program to automatically lift the molten aluminum ladle from the transport vehicle to the tipping device. At the same time, the dumping device was upgraded and renovated, equipped with an automatic dumping system to achieve fully automatic dumping of aluminum bags. The central control system also added a video surveillance system for remote monitoring and control. Ultimately, personnel were kept away from the dangerous environment of on-site bag lifting, protecting their personal health and life safety.

[0006] As a preferred embodiment of the present invention, the overhead crane control system includes several detection sensors and an automatic positioning control system. The detection sensors are installed on the overhead crane's track beam, trolley, and main hook to achieve spatial positioning and operational data monitoring of the overhead crane. The automatic positioning control system is located in the overhead crane's electrical control beam, communicates with the overhead crane's PLC, and automatically or manually controls the overhead crane based on remote signal commands. By installing detection sensors on the overhead crane's track beam, trolley, main hook, and other locations, the overhead crane achieves three-dimensional spatial positioning.

[0007] As a preferred embodiment of the present invention, the video surveillance system includes several cameras and several switches, each of which is connected to a hard disk recorder via the switch. The cameras include an overhead crane camera, a parking space camera, a furnace mouth camera, and a tilting platform camera. Cameras are installed below the overhead crane cab and below the overhead crane trolley. Both cameras have a fast focus function, enabling operators to observe and confirm when lifting and placing bags. The focus function is achieved through a remote control console. Cameras are installed near the furnace mouth and at the vehicle parking location for remote control of overhead crane operation. The video surveillance system transmits data via a dedicated video network, whose signal access equipment is independent of the industrial wireless network, and the video signal covers the entire work area.

[0008] As a preferred embodiment of the present invention, the ladle pouring control system includes a ladle pouring device, which is controlled by a PLC. When performing the pouring operation, the entire pouring process is divided into several sections, and the lifting time and stop waiting time of the pouring device in each section are adjusted by a program to maintain a uniform aluminum flow rate. Currently, the pouring device is manually operated. If the pouring is too fast, the aluminum will overflow in the diversion trough. Therefore, the present invention converts the ladle pouring device to PLC control, sets the pouring steps by program, simulates the manual operation process, divides the entire pouring process into multiple sections, adjusts the lifting time and stop waiting time of the pouring device in each section, standardizes the aluminum ladle tilting angle, and maintains a uniform aluminum flow rate.

[0009] As a preferred solution of the present invention, the information system reserves a two-way standard communication interface between the MES system and the ERP system, DCS system, and intelligent warehouse management system. The information system has several functional modules, including an equipment information collection module, an information display module, a big data analysis module, a fault alarm module, an equipment maintenance module, and a data storage module.

[0010] As a preferred solution of the present invention, the fault alarm module includes a business alarm unit and an equipment alarm unit. The business alarm unit collects and processes alarm information during the operation of the system itself, including operation abnormality alarm information and equipment connection abnormality alarm information. The equipment alarm unit collects and processes equipment status abnormalities, including abnormal status of the overhead crane main contactor, abnormal power supply phase sequence protection and trolley frequency conversion operation failure.

[0011] As a preferred embodiment of the present invention, the information system further includes a log management module comprising a system operation log unit and a user operation log unit. The system operation log unit records the system's own operation status and external communication information, while the user operation log unit records user operations on key data. The system also provides a query interface, allowing administrators to view user operation information at any time, thereby enabling management and supervision of operators.

[0012] As a preferred embodiment of the present invention, the system further includes a central control room equipped with a control console for remotely operating the overhead crane. The control console also includes a display unit for displaying images monitored by the video surveillance system. Overhead crane operations can be operated from the central control room. An intelligent bridge crane remote driving and operating platform (i.e., the control console) is located within the central control room. A human-machine interface (i.e., the display unit) displays the crane's operating status in real time, allowing operators to remotely control the crane via the driving and operating platform.

[0013] Therefore, the present invention has the following beneficial effects: in the fully automatic operation system for lifting aluminum molten ladle in front of the casting furnace based on remote control technology of the present invention, the operator only needs to confirm the one-button start operation of the overhead crane in the central control room, and then the trolley mechanism, car mechanism, lifting mechanism and rotating lifting ring of the overhead crane will automatically operate according to the program, and automatically lift the aluminum molten ladle from the transport vehicle to the tipping device; at the same time, the dumping device is upgraded and modified, and a self-alloyed aluminum ladle dumping control system is configured to realize the fully automatic dumping of the aluminum ladle, and a video monitoring system is added to the central control to remotely monitor and control it, and finally the personnel are kept away from the dangerous environment of the on-site lifting bag, which reduces the labor intensity of the operators and protects the personal health and life safety of the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the system structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the installation of detection sensors for an overhead crane control system according to an embodiment of the present invention;

[0016] Figure 3 Schematic diagram of the connection relationship of the video surveillance system according to an embodiment of the present invention;

[0017] Figure 4 Schematic diagram of a control console in a central control room according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1As shown, the fully automatic operation system for lifting molten aluminum ladle in front of a casting furnace based on remote control technology includes a crane control system: realizing spatial positioning and operation data monitoring of the crane, and realizing automatic or manual control of the crane through remote signal instructions; a video monitoring system: realizing observation and monitoring of the working status of the crane through a camera; a ladle dumping control system: setting dumping parameters and steps according to the capacity of the ladle, realizing uniform dumping of the molten aluminum; a rotating hoist: an integrated rotating hoist with both lifting and rotating functions; and an information system: realizing communication, information entry, information recording and information flow tracking between the crane control system, the video monitoring system, the ladle dumping control system and the rotating hoist. The fully automatic operation system for lifting molten aluminum ladle in front of a casting furnace based on remote control technology of the present invention can realize the operation confirmation of the crane by one-button start in the control room, and then the crane's trolley mechanism, trolley mechanism, lifting mechanism and rotating hoist will automatically operate according to the program to automatically lift the molten aluminum ladle from the transport vehicle to the tipping device. At the same time, the dumping device was upgraded and renovated, equipped with an automatic dumping system to achieve fully automatic dumping of aluminum bags. The central control system also added a video surveillance system for remote monitoring and control. Ultimately, personnel were kept away from the dangerous environment of on-site bag lifting, protecting their personal health and life safety.

[0020] The crane control system includes several detection sensors and an automatic positioning control system. The detection sensors are installed on the crane's track beam, trolley, and main hook to monitor the crane's spatial positioning and operational data. The automatic positioning control system is located within the crane's electrical control beam and communicates with the crane's PLC. It also provides automatic or manual control of the crane based on remote signal commands. By installing detection sensors on the crane's track beam, trolley, and main hook, the crane's three-dimensional spatial positioning is achieved.

[0021] The video surveillance system consists of several cameras and switches, connected to a hard disk recorder via the switches. These cameras include cameras for the overhead crane, parking bays, furnace mouth, and tilting platform. Cameras are installed below the overhead crane cab and below the crane trolley. Both cameras feature a fast focus function, enabling operators to observe and confirm when lifting and placing bags. This focus function is controlled via a remote control console. Cameras are installed near the furnace mouth and at the vehicle parking area for remote control of the overhead crane during operation. The video surveillance system transmits data via a dedicated video network, whose signal access equipment is independent of the industrial wireless network, ensuring video coverage of the entire work area.

[0022] The ladle pouring control system includes a ladle pouring device controlled by a programmable logic controller (PLC). During the pouring operation, the entire pouring process is divided into several segments, and the lifting time and stop waiting time of the pouring device are adjusted by a program for each segment to maintain a uniform molten aluminum flow rate. Currently, the pouring device is manually operated, and if the pouring is too fast, the molten aluminum will overflow from the diversion trough. Therefore, the present invention switches the ladle pouring device to PLC control. The program sets the pouring steps, simulating the manual operation process. The entire pouring process is divided into multiple segments, and the lifting time and stop waiting time of the pouring device are adjusted for each segment to standardize the ladle's tilting angle and maintain a uniform molten aluminum flow rate.

[0023] The information system reserves a two-way standard communication interface between the MES system and the ERP system, DCS system, and intelligent warehouse management system. The information system has several functional modules, including equipment information collection module, information display module, big data analysis module, fault alarm module, equipment maintenance module, and data storage module.

[0024] The fault alarm module includes a business alarm unit and an equipment alarm unit. The business alarm unit collects and processes alarm information during the operation of the system itself, including operation abnormality alarm information and equipment connection abnormality alarm information. The equipment alarm unit collects and processes equipment status abnormalities, including abnormal status of the overhead crane main contactor, abnormal power supply phase sequence protection and trolley frequency conversion operation failure.

[0025] The information system also includes a log management module, which includes a system operation log unit and a user operation log unit. The system operation log unit records the system's own operation status and external communication information, while the user operation log unit records user operations on key data. The system also provides a query interface so that managers can view user operation information at any time, thereby enabling management and supervision of operators.

[0026] The system also includes a central control room, which houses a control console for remote operation of the overhead crane and a display unit for displaying images from the video surveillance system. The central control room allows for operation of the overhead crane. An intelligent bridge crane remote driving and operation platform (i.e., the control console) is located in the room. A human-machine interface (i.e., the display unit) displays the crane's operating status in real time, allowing operators to remotely control the crane through the driving and operation platform.

[0027] Embodiment: In this embodiment, the fully automatic operation system of the present invention is further described.

[0028] The fully automatic operation system for lifting molten aluminum ladle in front of the casting furnace mainly includes overhead crane control system, video monitoring system, automatic dumping control system, rotating hook, information system and other parts.

[0029] Overhead crane control system:

[0030] like Figure 2 As shown in the figure, by installing detection sensors on the track beam, trolley, main hook and other positions of the overhead crane, the three-dimensional spatial positioning of the overhead crane is realized; an automatic positioning control system is installed in the overhead crane electrical control beam to communicate with the overhead crane PLC, and the overhead crane is automatically or manually controlled according to remote signal instructions; the central control PLC is designed with a simulation animation program to display the dynamic information of the overhead crane position; the main hook, trolley and trolley mechanisms are equipped with independent coordinate detection systems to detect the system operation coordinates. When the positioning feedback data is inconsistent with the coordinate feedback data, the system will automatically stop, which is faster and more sensitive than manual response. In addition, all limit and overhead crane safety monitoring signals are also available. The information will be fed back to the control console in the central control room, so that the remote control personnel can understand the status of the overhead crane. During the operation of the overhead crane, the system will calculate the height of the lifting ring and the running speed of the trolley and the small trolley, and make real-time compensation according to the operating instructions, which is open-loop software control anti-sway control to ensure the stability of the lifting ring when lifting and lowering. The overhead crane lifting ring is replaced with an electric variable frequency rotating lifting ring, and equipped with mechanical guides to achieve rotation positioning and speed control. A remote control console is installed in the central control room to remotely operate the overhead crane. The functions cover all existing overhead crane controls, and the control accuracy achieves stepless speed regulation. The control console is isolated from the original overhead crane operation with a conversion switch, and the original operation mode can be restored at any time when needed. The console diagram is as follows Figure 4 shown.

[0031] Video surveillance system:

[0032] Cameras are installed on the lower side of the overhead crane cab and under the overhead crane trolley. Both cameras have a fast focus function to facilitate observation and confirmation when the operator is lifting and placing bags. The focus function is achieved through remote control console operation. Cameras are installed near the furnace mouth and the vehicle parking position to remotely control the monitoring of the overhead crane during operation. The video monitoring system is transmitted through a dedicated video network. Its signal access equipment is independent of the industrial wireless network. The video signal can cover the entire working area. The video monitoring system structure is as follows: Figure 3 shown.

[0033] Aluminum ladle dumping device:

[0034] Currently, the ladle pouring mechanism is manually operated. If the pouring is too fast, the molten aluminum can overflow from the diversion trough. Therefore, this solution switches the ladle pouring mechanism to a PLC-controlled one. The program sets the pouring steps, simulating the manual operation process. The entire pouring process is divided into multiple segments, and the lifting and stopping waiting times of the pouring mechanism are adjusted for each segment. This standardizes the ladle's tipping angle and maintains a uniform molten aluminum flow rate. A liquid level detection laser is also installed above the molten aluminum trough to monitor the flow rate within the entire trough. If the monitored liquid level exceeds the set value, the pouring stops automatically, ensuring safe operation of the equipment.

[0035] Swivel ring:

[0036] The renovation involved upgrading the main hook. The design involved transforming the existing standard hook into a multifunctional hook assembly capable of both lifting and rotating. The main technical solution involved replacing the original hook with a lifting ring with a rotating mechanism. The new hook also featured a lifting ring, which facilitated connection and securement with the electronic crane scale pin, creating an integrated rotating sling.

[0037] Information system:

[0038] Establish information software to monitor the status of overhead cranes and tipping equipment, and to input, record, and track the weight and number of aluminum packages, and generate daily production line total aluminum output and efficiency analysis reports.

[0039] (1) Design principles:

[0040] The system reserves standard two-way communication interfaces between MES, ERP, and DCS intelligent warehouse management systems for easy access. The system has functions such as collecting equipment information, displaying information, fault alarms, equipment maintenance, data storage and space cleaning, and big data analysis.

[0041] (2) Alarm and log management requirements:

[0042] Alarm management includes two parts: business alarms and equipment alarms. Business alarms are alarm information generated during the operation of the business system itself, such as abnormal operation alarms, abnormal equipment connection alarms, etc. Equipment alarms are mainly abnormal equipment status, such as overhead crane main contactor status alarms, power supply phase sequence protection alarms, trolley frequency conversion operation failures, etc. Log management should include two types of logs generated by system operation and user operation logs. The operation log should record the system's own operation status and external communication information, and is mainly used for problem handling and fault location. The user operation log should record the user's operation of key data, and is mainly used for business tracing. The system provides a query interface so that managers can view user operation information at any time to manage and supervise operators. It can also achieve:

[0043] A. Monitor the status of each device in real time and display it with intuitive status or simulation effects;

[0044] B. Equipment working status monitoring, including real-time display of software and hardware safety interlocking, device working conditions and other information;

[0045] C. Real-time dynamic display of the working status of each major mechanism, including position, load, speed, voltage, current, frequency, etc.;

[0046] D. Real-time display of the control process status of each major organization, including given, feedback, and operating data;

[0047] E. Real-time notification of fault alarm information, and active notification when an alarm occurs.

[0048] The system collects, diagnoses, analyzes, and traces faults, displaying fault details, occurrence and reset times, affiliated organizations, and relevant help documentation. The system can query various fault information based on factors such as affiliated organization, occurrence time, and type (minor / major), and can generate reports based on the resulting information. The system saves operational data every second, including analog and digital values. When a fault occurs, data before and after the occurrence can be retrieved based on the time of occurrence, greatly assisting in analyzing the cause of the alarm and its consequences.

[0049] (3) Overhead crane operation mode management:

[0050] The system has semi-automatic (operating room remote manual) driving mode, cab driving / remote control mode, and the initial mode is manual mode. Each overhead crane has the right to select the mode, which can be selected in the software system interface and also supports hardware electrical button switches for selection. Among them:

[0051] Semi-automatic control mode (remote manual mode): A remote driving operation platform for an intelligent bridge crane is configured in the central control room. Relevant cameras are installed on the intelligent bridge crane to capture the working area under the crane. A display screen is configured on the remote driving operation platform to display the camera image. The operating console is equipped with a remote operation handle, setting buttons, status indicator lights, and a human-computer interaction interface to display the crane's operating status in real time and set parameters according to permissions.

[0052] Cab operation (manual control mode): The overhead crane cab / remote control operation is retained, and the operator performs on-site operation through the cab during overhead crane maintenance.

[0053] The present invention realizes indoor remote control of the overhead crane through remote control technology, replacing the traditional operation scenario where the operator follows the overhead crane at the lifting site. Through this technology, the personnel are kept away from the overhead crane operation environment during the operation of the overhead crane, which improves the personnel's working environment and avoids personal injury that may be caused by the accidental fall of the molten aluminum ladle. The present invention realizes automatic operation of the entire operation process through the automatic operation program of the overhead crane and the automatic program of the molten aluminum ladle dumping device. Through this technology, the operator is freed from the continuous operation of the entire process, reducing the operator's work intensity. At the same time, one operator can operate two or more overhead cranes at the same time, achieving reduction in staff and increase in efficiency. The present invention realizes the safety and reliability of the entire operation process through an independent coordinate detection system, liquid level over-limit shutdown, furnace side emergency stop function, etc. The present invention uses the above technology to safely control each link in the operation process of the overhead crane to avoid potential safety hazards during automatic operation. The furnace side emergency stop function is the last line of defense. In the event of unpredictable dangerous situations, personnel can also use the furnace side emergency stop to perform an emergency shutdown.

[0054] The above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention.

Claims

1. The fully automatic operation system for lifting aluminum molten ladle in front of the casting furnace based on remote control technology is characterized by: include: Overhead Crane Control System: Detection sensors installed on the crane's track beam, trolley, and main hook monitor the crane's three-dimensional positioning and operating data. Automatic or manual control of the crane is also achieved through remote signal commands. The main hook, trolley, and trolley mechanisms are independently equipped with coordinate detection systems, which automatically stop the crane when positioning feedback is inconsistent with coordinate data. During crane operation, the system calculates the lifting ring height and trolley speed, and performs real-time compensation based on operating instructions, achieving open-loop software-controlled anti-sway control. Video monitoring system: The working status of the overhead crane is observed and monitored through a camera with remote control and focusing function. The video monitoring system is transmitted through a dedicated video network, and the signal access equipment is independent of the industrial wireless network. Aluminum ladle dumping control system: The dumping parameters and multi-stage dumping steps are set through the PLC program according to the capacity of the aluminum ladle. Combined with the liquid level detection laser above the aluminum ladle tank, the aluminum ladle is dumped at a uniform speed and automatically stopped when the limit is exceeded. Rotating hoist ring: An integrated rotating hoist with both lifting and rotating functions, fixedly connected to the electronic crane scale pin and equipped with mechanical guides to achieve rotation positioning and speed control; Information system: realizes communication between the overhead crane control system, video monitoring system, aluminum ladle dumping control system and rotating ring, information input, information recording, big data analysis and information flow tracking; The system has a furnace-side emergency stop function.

2. The fully automatic operation system for lifting aluminum molten ladle in front of a casting furnace based on remote control technology according to claim 1 is characterized in that: The overhead crane control system includes several detection sensors and an automatic positioning control system. The detection sensors are installed on the overhead crane's track beam, trolley and main hook to realize the spatial positioning and operation data monitoring of the overhead crane. The automatic positioning control system is set in the overhead crane's electrical control beam and communicates with the overhead crane PLC. At the same time, it realizes automatic or manual control of the overhead crane according to remote signal instructions; the central control PLC is designed to simulate animation program to display the dynamic position information of the overhead crane.

3. The fully automatic operation system for lifting aluminum molten ladle in front of a casting furnace based on remote control technology according to claim 2 is characterized in that: The video surveillance system includes several cameras and several switches. The cameras are connected to hard disk recorders through the switches. The cameras include overhead crane cameras, parking space cameras, furnace mouth cameras and tilting platform cameras, all of which have a fast focusing function, which is achieved through remote console operation; the video signal can cover the entire working area.

4. The fully automatic operation system for lifting aluminum molten ladle in front of a casting furnace based on remote control technology according to claim 1 is characterized in that: The aluminum ladle dumping control system includes an aluminum ladle dumping device, which is controlled by a PLC. When performing the dumping operation, the entire dumping process is divided into several sections, and the lifting time and stop waiting time of the dumping device in each section are adjusted through a program to keep the aluminum liquid flow at a uniform speed.

5. The fully automatic operation system for lifting aluminum molten ladle in front of a casting furnace based on remote control technology according to claim 1 is characterized in that: The information system reserves a two-way standard communication interface between the MES system and the ERP system, DCS system, and intelligent warehouse management system. The information system has several functional modules, including an equipment information collection module, an information display module, a big data analysis module, a fault alarm module, an equipment maintenance module, and a data storage module.

6. The fully automatic operation system for lifting aluminum molten ladle in front of a casting furnace based on remote control technology according to claim 5 is characterized in that: The fault alarm module includes a business alarm unit and an equipment alarm unit. The business alarm unit collects and processes alarm information during the operation of the system itself, including operation abnormality alarm information and equipment connection abnormality alarm information. The equipment alarm unit collects and processes equipment status abnormalities, including abnormal status of the overhead crane main contactor, abnormal power supply phase sequence protection and trolley frequency conversion operation failure.

7. The fully automatic operation system for aluminum molten ladle in front of a casting furnace based on remote control technology according to claim 1, 5 or 6, characterized in that: The information system also includes a log management module, which includes a system operation log unit and a user operation log unit. The system operation log unit records the system's own operation status and external communication information, and the user operation log unit records the user's operation on key data.

8. The fully automatic operation system for lifting aluminum molten ladle in front of a casting furnace based on remote control technology according to any one of claims 1 to 6, characterized in that: It also includes a central control room, which is equipped with a control console. The console realizes remote operation of the overhead crane and supports switching between semi-automatic mode, remote manual mode and cab manual mode, and the two modes are isolated by an electrical button switch; the central control room is also equipped with a display unit for displaying images monitored by the video surveillance system; the console functions cover all existing overhead crane controls, and the control accuracy achieves stepless speed regulation.

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