Automatic hoisting system suitable for cable crane

Abstract

The invention discloses an automatic hoisting system suitable for a cable crane. The automatic hoisting system comprises a first Beidou GNSS positioning module, a second Beidou GNSS positioning module, a third Beidou GNSS positioning module, a fourth Beidou GNSS positioning module, a wireless communication module and a monitoring center (PLC). The invention has the following advantages: the automation degree is high, the whole hoisting process is automatically carried out, excessive manual intervention is not needed, one-key hoisting can be realized, and the hoisting working efficiency and the hoisting precision are improved. Due to the fact that instructions of the system move automatically, the technical problem that the hoisting action runs wrongly due to unsmooth command operation does not exist on site. According to the automatic hoisting system of the cable crane, a plurality of data can be monitored and stored, and a large amount of data basis is provided for subsequent upgrading or reconstruction of the automatic hoisting system of the cable crane.

Description

Technical Field

[0001] The invention relates to the field of cable hoisting, in particular to an automatic hoisting system suitable for a cable hoist. Background Art

[0002] A cable crane is a lifting and transporting machine that moves a lifting trolley with a lifting device along an overhead load-bearing cable. It is often used in situations where other lifting methods are inconvenient or uneconomical, where the lifting weight is not large, and where the lifting span and height are large, such as bridge construction. The structure of the cable crane mainly includes anchor piles at both ends, each anchor pile is equipped with a tower, and the two towers are arranged opposite to each other. A steel cable is installed between the two towers, and a trolley that can travel along the steel cable is arranged on the steel cable. The trolley is driven by a traction motor. The hoist is installed on the traveling trolley, and the hoist is driven by a lifting motor. The hoist is used to lift construction materials.

[0003] The existing cable crane uses manual control of each winch to work, which has the following disadvantages: 1. Full manual control: During the entire hoisting process, all winch operations require manual operation to start and stop. In the process of a hoisting that may last for several hours, it is difficult for operators and commanders to ensure that they always pay attention to the hoisting process. 2. Visual experience judgment: There will be multiple operating turns during the hoisting process, and when to turn depends entirely on the commander's visual inspection and experience, which is inefficient and has poor accuracy. 3. Unsmooth command operation: The commander and the operator communicate through a walkie-talkie. There will be one or more operators. After the commander issues an order, the operator may hear a fork or miss a line, resulting in unexpected action of the equipment. Due to the working characteristics of the cable crane, it is not easy to find operating errors in a short time, and accidents have already occurred when they are found. Such as pulling and releasing. 4. Too high command delay: A command has to be transferred to the operating equipment many times before it is received. The entire site is like a giant with slow response. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides an automatic lifting system suitable for a cable crane, which is used to solve the technical problems of low lifting efficiency, poor lifting accuracy, and lifting operation errors caused by manual control of each winch in the lifting process of the cable crane in the prior art.

[0005] The present invention is implemented by constructing an automatic hoisting system suitable for a cable crane, characterized in that; Including: the first Beidou GNSS positioning module, the second Beidou GNSS positioning module, the third Beidou GNSS positioning module, the fourth Beidou GNSS positioning module, a wireless communication module and a monitoring center (PLC); Among them, the first Beidou GNSS module is set on the spreader, the first Beidou GNSS module is powered by the power generation device, and the first Beidou GNSS module transmits the spreader position to the centralized monitoring center through the wireless module. The PLC of the monitoring center processes the data, and the lifting height data of the spreader is displayed on the LCD screen after calculation and analysis by the PLC; A second Beidou GNSS positioning module is installed on the trolley. The second Beidou GNSS positioning module transmits the trolley's position to the centralized monitoring center through a wireless module. The PLC in the monitoring center processes the data and displays the trolley's running travel data on the LCD screen after PLC calculation and analysis. By installing a third Beidou GNSS positioning module on the top of the tower, the tower body deflection is monitored in real time. The positioning system transmits the signal to the centralized monitoring center through the wireless module. The PLC system of the monitoring center determines whether the tower deviation distance is within the normal range. The tower displacement state is monitored by the Beidou positioning system, and the displacement deviation can reach ±3cm. By placing the fourth Beidou GNSS positioning module at the anchor piles on both sides of the river, the signal is transmitted to the centralized monitoring center through the wireless module, and the PLC system of the monitoring center determines whether the anchor displacement phenomenon occurs; the fourth Beidou GNSS positioning module can monitor the anchor displacement and the displacement deviation can reach ±3cm; The first Beidou GNSS positioning module, the second Beidou GNSS positioning module, the third Beidou GNSS positioning module and the fourth Beidou GNSS positioning module transmit the acquired signals to the monitoring center (PLC). The monitoring center (PLC) presets standard data (including the height of the hoisting device, the position of the trolley, the inclination angle of the tower top, the displacement distance of the anchor pile, etc.). The monitoring center (PLC) compares and analyzes the acquired data with the standard data. If the difference between the acquired real-time data and the standard data exceeds the preset deviation range, a control signal is sent to control the corresponding equipment to adjust until the data uploaded by the corresponding equipment falls within the standard value range. The monitoring center (PLC) can perform one-click hoisting according to the preset hoisting model and automatically complete the entire hoisting process.

[0006] According to the automatic hoisting system suitable for cable cranes described in the present invention, it is characterized in that: the above-mentioned first Beidou GNSS positioning module, the second Beidou GNSS positioning module, the third Beidou GNSS positioning module, and the fourth Beidou GNSS positioning module are all the same Beidou GNSS positioning devices, using the differential reference station + measurement mobile station + wireless data transmission radio link mode, the differential reference station is installed at a fixed position near the control room, the reference station transmits differential data to the mobile station through the radio at a frequency of 1HZ to achieve RTK high-precision positioning, and the mobile station can output a positioning result (longitude, latitude, altitude) of up to 20HZ to the control room receiving device through the wireless data transmission radio; after testing, in an open and basically unobstructed state: the wireless transmission of data within 1KM is good, if the site is blocked in a large area, the installation position of the reference station needs to be adjusted; the data accuracy has a centimeter-level error; The cable crane wireless network adopts high-frequency, long-distance, industrial-grade, outdoor high-performance bridge; due to the complex terrain of the construction site and the long transmission distance, in order to realize the free transmission of video and data signals on both sides, an industrial-grade wireless bridge is used in this project.

[0007] According to the present invention, an automatic hoisting system suitable for a cable crane is characterized in that: the automatic hoisting system for a cable crane further comprises: Add vibration sensors to the housings of the lifting motor and traction motor to output a 4-20ma standard signal, which is transmitted to the monitoring host through the collector, and then uploaded to the system platform for display and storage on the platform; used to provide early warning and alarm information, the sensor uses a vibration sensor, which is a transmitter that integrates the vibration sensor and signal conditioning circuit, and has high reliability; Install environmental monitoring instruments at appropriate locations to monitor environmental wind speed, temperature and humidity; The monitoring host reads the opening and closing information of each safety limit switch of the cable crane and displays the opening and closing status of the safety limit on the platform; By adding an encoder at the end of the hoisting wire rope drum, the encoder outputs a 485 signal or an analog output 4-20ma signal to the collector, and the corresponding hoisting speed is calculated and displayed; if an overspeed condition occurs, the local monitoring system participates in the hoisting mechanism control and stops the hoisting motor. After the fault is eliminated, it needs to be manually reset before continuing the operation. The alarm information and status can be displayed on the remote platform; Use the original vehicle brake detection switch or add a detection switch on the brake to monitor the brake's action status in real time through the detection switch and record the number of brake actions; the current brake open and closed status can be displayed in real time on the remote platform; Monitor the opening and closing information of each door limit switch and display the opening and closing status of the door limit on the platform; program the operation interlock between various mechanisms in the software; Working time, cumulative working time, working cycle: This is collected by the intelligent monitoring and management system of the cable crane. The data collected by the PLC module is statistically converted by the human-machine interface to obtain the equipment operating working time, cumulative working time and working cycle, and the data is stored, recorded and displayed; Multiple cameras were added and installed near the winch platform to monitor the working condition of the winch. Multiple spherical cameras were installed on the top of each of the two towers to provide a bird's-eye view of the construction condition of the cable crane hoisting area. At the same time, panoramic cameras were arranged at high points on the construction site to monitor the construction site of the cable crane.

[0008] According to the present invention, an automatic hoisting system suitable for a cable crane is characterized in that: the automatic hoisting system for a cable crane also includes an information management software system, which has the following characteristics: Life calculation of important electrical equipment (contactor, motor, master, etc.): parameters such as times, time, overcurrent times, etc.; alarm values ​​of the above parameters can be set, and an alarm prompt will be issued when the alarm value is reached; The life value of important equipment when it is replaced can be recorded for reference in setting alarm values ​​in the future; Health management, a software function module for data statistics, data mining, and information analysis and processing of various operating data of the cable crane; It has a historical playback function. This function mainly performs historical playback similar to video software on the software running interface. It has fault diagnosis function and built-in fault diagnosis expert system, including fault phenomena, fault causes, solutions and other information of different equipment; it can accurately record the operation gear of the linkage table and the number of contactor actions, and can provide early warning when the operation or action times are close to the life of the contactor in combination with the contactor current; The system can track and judge the hook slipping and stalling during the ascent and descent, which are important issues that need to be monitored during the operation of the cable crane; hook slipping: when lifting a heavy object, the motor torque is less than or equal to the weight of the heavy object, causing the heavy object to drag the motor to rotate and the heavy object to slide down; when lowering a heavy object, the motor torque is less than or equal to the weight of the heavy object, causing the heavy object to drag the motor to rotate; stalling: whether the heavy object is being raised or lowered, the motor has no torque, causing the heavy object to slide down suddenly; it can record the device direction, moving distance and speed corresponding to the operating gear; it has the function of comprehensive judgment and analysis of hook slipping and stalling, and has the function of traction and pull limit analysis and control; With signal processing function: recorded, stored and displayed by the host computer cable crane intelligent monitoring management system software; signal acquisition method: the signal output interface of the travel limiter is RS485, which is collected by PLC; signal processing: recorded, stored, displayed and recorded the time when the alarm and fault occurred by the host computer cable crane intelligent monitoring management system software; With remote monitoring function: the system can upload real-time monitoring data to the cloud, and view the cable crane data in real time on the mobile APP and PC server.

[0009] The present invention has the following advantages: the automatic lifting system for the cable crane has a high degree of automation, the entire lifting process is automatically carried out without excessive manual intervention, and one-key lifting can be achieved, thereby improving the working efficiency and lifting accuracy of the lifting. Since the system's instructions move automatically, there is no technical problem of lifting action errors caused by unsmooth command operations on site. The automatic lifting system for the cable crane can monitor and save multiple data, providing a large amount of data basis for the subsequent upgrade or transformation of the automatic lifting system for the cable crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the one-button lifting control layout diagram of the cable crane; Figure 2-Figure 3 It is a schematic diagram of the implementation of the present invention. DETAILED DESCRIPTION

[0011] The following will be combined with the attached Figure 3 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] The present invention provides an automatic hoisting system suitable for a cable crane, comprising: a first Beidou GNSS positioning module, a second Beidou GNSS positioning module, a third Beidou GNSS positioning module, a fourth Beidou GNSS positioning module, a wireless communication module and a monitoring center (PLC).

[0013] The first Beidou GNSS positioning module, the second Beidou GNSS positioning module, the third Beidou GNSS positioning module, and the fourth Beidou GNSS positioning module are all the same Beidou GNSS positioning devices, using the differential base station + measurement mobile station + wireless data transmission radio link method. The differential base station is installed at a fixed position near the control room. The base station transmits differential data to the mobile station through the radio at a frequency of 1HZ to achieve RTK high-precision positioning. The mobile station can output a maximum of 20HZ positioning results (longitude, latitude, altitude) to the control room receiving device through the wireless data transmission radio. After testing, in an open and basically unobstructed state: the data wireless transmission is good within a 1KM range. If there is a large range of obstruction on the scene, the base station installation position needs to be adjusted; the data accuracy has a centimeter-level error.

[0014] The cable crane wireless networking uses a high-frequency, long-distance, industrial-grade, outdoor high-performance bridge. Due to the complex terrain of the construction site and the long transmission distance, an industrial-grade wireless bridge is used in this project to achieve free transmission of video and data signals on both sides. The bridge is a powerful wireless broadband access and transmission product. It has a built-in unique XTrans wireless technology, which combines the industry's leading core technologies, including MIMO, BeamForming, TDMA, etc., with the characteristics of long transmission distance, high throughput, and strong anti-interference.

[0015] Among them, the first Beidou GNSS module is set on the hoist, the first Beidou GNSS module is powered by the power generation device, and the first Beidou GNSS module transmits the position of the hoist to the centralized monitoring center through the wireless module. The PLC of the monitoring center processes the data, and displays the lifting height data of the hoist on the LCD screen after calculation and analysis by the PLC.

[0016] A second Beidou GNSS positioning module is installed on the car. The second Beidou GNSS positioning module transmits the car's position to the centralized monitoring center through a wireless module. The PLC in the monitoring center processes the data and displays the car's running travel data on the LCD screen after calculation and analysis by the PLC.

[0017] By installing a third Beidou GNSS positioning module on the top of the tower, the tower body deflection is monitored in real time. The positioning system transmits the signal to the centralized monitoring center through the wireless module, and the PLC system of the monitoring center determines whether the tower deviation distance is within the normal range. The Beidou positioning system monitors the tower displacement state, and the displacement deviation can reach ±3cm.

[0018] By placing the fourth Beidou GNSS positioning module at the anchor piles on both sides, the signal is transmitted to the centralized monitoring center through the wireless module, and the PLC system of the monitoring center determines whether the anchor displacement phenomenon occurs. The fourth Beidou GNSS positioning module can monitor the anchor displacement and the displacement deviation can reach ±3cm.

[0019] The first Beidou GNSS positioning module, the second Beidou GNSS positioning module, the third Beidou GNSS positioning module and the fourth Beidou GNSS positioning module transmit the acquired signals to the monitoring center (PLC). The monitoring center (PLC) presets the standard data (including the height of the hoist, the position of the trolley, the inclination angle of the tower top, the displacement distance of the anchor pile, etc.). The monitoring center (PLC) compares and analyzes the acquired data with the standard data. If the difference between the acquired real-time data and the standard data exceeds the preset deviation range, a control signal is sent to control the corresponding equipment to adjust until the data uploaded by the corresponding equipment falls within the standard value range. The monitoring center (PLC) can perform one-click hoisting according to the preset hoisting model and automatically complete the entire hoisting process.

[0020] In addition, the cable crane automatic lifting system provided in this application also has the following preferred technical improvements: Add vibration sensors to the housings of the lifting motor and traction motor to output a 4-20ma standard signal, which is transmitted to the monitoring host through the collector, and then uploaded to the system platform for display and storage on the platform. It is used to provide early warning and alarm information. The sensor uses a vibration sensor, which is a transmitter that integrates a vibration sensor and a signal conditioning circuit, and has high reliability.

[0021] Install environmental monitoring instruments at appropriate locations to monitor environmental wind speed, temperature and humidity.

[0022] The monitoring host reads the opening and closing information of each safety limit switch of the cable crane and displays the opening and closing status of the safety limit on the platform.

[0023] By adding an encoder to the end of the hoisting wire rope drum, the encoder outputs a 485 signal or an analog output 4-20ma signal to the collector, and the corresponding hoisting speed is calculated and displayed. If an overspeed condition occurs, the local monitoring system participates in the hoisting mechanism control and stops the hoisting motor. After the fault is eliminated, it needs to be manually reset before continuing the operation. The alarm information and status can be displayed on the remote platform.

[0024] Use the original vehicle brake detection switch or add a detection switch to the brake to monitor the brake's action status in real time through the detection switch and record the number of brake actions. The current brake open and closed status can be displayed in real time on the remote platform.

[0025] Monitor the opening and closing information of each door limit switch and display the opening and closing status of the door limit on the platform; the software writes the operation chain between each mechanism.

[0026] Working time, cumulative working time, working cycle: This is collected by the intelligent monitoring and management system of the cable crane. The data collected by the PLC module is statistically converted through the human-machine interface to obtain the equipment operating time, cumulative working time and working cycle, and the data is stored, recorded and displayed.

[0027] Multiple cameras were added and installed near the winch platform to monitor the working condition of the winch; multiple spherical cameras were installed on the top of the two towers to provide a bird's-eye view of the construction of the cable crane hoisting area. At the same time, a panoramic camera was arranged at a high point on the construction site to monitor the construction site of the cable crane.

[0028] This application is also provided with information management software, which has the following features: Life calculation of important electrical equipment (contactor, motor, master, etc.): parameters such as times, time, overcurrent times, etc. The alarm value of the above parameters can be set, and when the alarm value is reached, an alarm prompt will be issued.

[0029] The life value of important equipment when it is replaced can be recorded for reference in setting alarm values ​​in the future.

[0030] Health management is a software function module that performs data statistics, data mining, and information analysis and processing on the operating data of this cable crane.

[0031] It has a historical playback function. This function mainly performs historical playback similar to video software on the software running interface.

[0032] It has fault diagnosis function and built-in fault diagnosis expert system, including fault phenomena, fault causes, solutions and other information of different equipment. It can accurately record the operation position of the linkage table and the number of contactor actions, and can provide early warning when the operation or action times are close to the life of the contactor in combination with the contactor current.

[0033] The system can track and judge the hook slipping and stalling during the ascent and descent, which are important issues that need to be monitored during the operation of the cable crane. Hook slipping: When lifting a heavy object, the motor torque is ≤ the weight of the heavy object, causing the heavy object to drag the motor to rotate and the heavy object to slide down; when lowering a heavy object, the motor torque is ≤ the weight of the heavy object, causing the heavy object to drag the motor to rotate. Stalling: Whether the heavy object is being raised or lowered, the motor has no torque, causing the heavy object to slide down suddenly. It can record the device direction, moving distance, and speed corresponding to the operating gear. It has the comprehensive judgment and analysis function of hook slipping and stalling, and has the traction and pull limit analysis and control function.

[0034] It has signal processing function: it is recorded, stored and displayed by the host computer cable crane intelligent monitoring and management system software; signal acquisition method: the signal output interface of the travel limiter is RS485, which is collected by PLC; signal processing: it is recorded, stored, displayed and recorded by the host computer cable crane intelligent monitoring and management system software. The time when the alarm and fault occur.

[0035] With remote monitoring function: the system can upload real-time monitoring data to the cloud, and view the cable crane data in real time on the mobile APP and PC server.

[0036] This patent has the following advantages and beneficial effects: The automatic lifting system of the cable crane has a high degree of automation. The entire lifting process is carried out automatically without excessive manual intervention. It can achieve one-click lifting, which improves the work efficiency and lifting accuracy of the lifting. Since the system's instructions move automatically, there are no technical problems on site such as lifting action errors caused by unsmooth command operations. The automatic lifting system of the cable crane can monitor and save multiple data, providing a large amount of data foundation for the subsequent upgrade or transformation of the automatic lifting system of the cable crane.

[0037] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic hoisting system suitable for a cable crane, characterized in that ； Including: the first Beidou GNSS positioning module, the second Beidou GNSS positioning module, the third Beidou GNSS positioning module, the fourth Beidou GNSS positioning module, a wireless communication module and a monitoring center (PLC); Among them, the first Beidou GNSS module is set on the spreader, the first Beidou GNSS module is powered by the power generation device, and the first Beidou GNSS module transmits the spreader position to the centralized monitoring center through the wireless module. The PLC of the monitoring center processes the data, and the lifting height data of the spreader is displayed on the LCD screen after calculation and analysis by the PLC; A second Beidou GNSS positioning module is installed on the trolley. The second Beidou GNSS positioning module transmits the trolley's position to the centralized monitoring center through a wireless module. The PLC in the monitoring center processes the data and displays the trolley's running travel data on the LCD screen after PLC calculation and analysis. By installing a third Beidou GNSS positioning module on the top of the tower, the tower body deflection is monitored in real time. The positioning system transmits the signal to the centralized monitoring center through the wireless module. The PLC system of the monitoring center determines whether the tower deviation distance is within the normal range. The tower displacement state is monitored by the Beidou positioning system, and the displacement deviation can reach ±3cm. By placing the fourth Beidou GNSS positioning module at the anchor piles on both sides of the river, the signal is transmitted to the centralized monitoring center through the wireless module, and the PLC system of the monitoring center determines whether the anchor displacement phenomenon occurs; the fourth Beidou GNSS positioning module can monitor the anchor displacement and the displacement deviation can reach ±3cm; The first Beidou GNSS positioning module, the second Beidou GNSS positioning module, the third Beidou GNSS positioning module and the fourth Beidou GNSS positioning module transmit the acquired signals to the monitoring center (PLC). The monitoring center (PLC) presets standard data (including the height of the hoisting device, the position of the trolley, the inclination angle of the tower top, the displacement distance of the anchor pile, etc.). The monitoring center (PLC) compares and analyzes the acquired data with the standard data. If the difference between the acquired real-time data and the standard data exceeds the preset deviation range, a control signal is sent to control the corresponding equipment to adjust until the data uploaded by the corresponding equipment falls within the standard value range. The monitoring center (PLC) can perform one-click hoisting according to the preset hoisting model and automatically complete the entire hoisting process.

2. An automatic hoisting system suitable for a cable crane according to claim 1, characterized in that; The first Beidou GNSS positioning module, the second Beidou GNSS positioning module, the third Beidou GNSS positioning module and the fourth Beidou GNSS positioning module are all the same Beidou GNSS positioning devices, using the differential base station + measurement mobile station + wireless data transmission radio link mode. The differential base station is installed at a fixed position near the control room. The base station transmits differential data to the mobile station via the radio at a frequency of 1HZ to achieve RTK high-precision positioning. The mobile station can output a maximum of 20HZ positioning results (longitude, latitude, altitude) to the control room receiving device via the wireless data transmission radio; After testing, in an open space with basically no obstructions: the wireless data transmission is good within 1KM. If there is a large area of ​​obstruction on site, the installation position of the base station needs to be adjusted; the data accuracy is at the centimeter level; The cable crane wireless network adopts high-frequency, long-distance, industrial-grade, outdoor high-performance bridge; due to the complex terrain of the construction site and the long transmission distance, in order to realize the free transmission of video and data signals on both sides, an industrial-grade wireless bridge is used in this project.

3. An automatic hoisting system suitable for a cable crane according to claim 1, characterized in that; The cable crane automatic lifting system also includes: Add vibration sensors to the housings of the lifting motor and traction motor to output a 4-20ma standard signal, which is transmitted to the monitoring host through the collector, and then uploaded to the system platform for display and storage on the platform; used to provide early warning and alarm information, the sensor uses a vibration sensor, which is a transmitter that integrates the vibration sensor and signal conditioning circuit, and has high reliability; Install environmental monitoring instruments at appropriate locations to monitor environmental wind speed, temperature and humidity; The monitoring host reads the opening and closing information of each safety limit switch of the cable crane and displays the opening and closing status of the safety limit on the platform; By adding an encoder at the end of the hoisting wire rope drum, the encoder outputs a 485 signal or an analog output 4-20ma signal to the collector, and the corresponding hoisting speed is calculated and displayed; if an overspeed condition occurs, the local monitoring system participates in the hoisting mechanism control and stops the hoisting motor. After the fault is eliminated, it needs to be manually reset before continuing the operation. The alarm information and status can be displayed on the remote platform; Use the original vehicle brake detection switch or add a detection switch on the brake to monitor the brake's action status in real time through the detection switch and record the number of brake actions; the current brake open and closed status can be displayed in real time on the remote platform; Monitor the opening and closing information of each door limit switch and display the opening and closing status of the door limit on the platform; program the operation interlock between various mechanisms in the software; Working time, cumulative working time, working cycle: This is collected by the intelligent monitoring and management system of the cable crane. The data collected by the PLC module is statistically converted by the human-machine interface to obtain the equipment operating working time, cumulative working time and working cycle, and the data is stored, recorded and displayed; Multiple cameras were added and installed near the winch platform to monitor the working condition of the winch. Multiple spherical cameras were installed on the top of each of the two towers to provide a bird's-eye view of the construction condition of the cable crane hoisting area. At the same time, panoramic cameras were arranged at high points on the construction site to monitor the construction site of the cable crane.

4. An automatic hoisting system suitable for a cable crane according to claim 1, characterized in that; The cable crane automatic lifting system also includes an information management software system, which has the following functions: Life calculation of important electrical equipment (contactor, motor, master, etc.): parameters such as times, time, overcurrent times, etc.; alarm values ​​of the above parameters can be set, and an alarm prompt will be issued when the alarm value is reached; The life value of important equipment when it is replaced can be recorded for reference in setting alarm values ​​in the future; Health management, a software function module for data statistics, data mining, and information analysis and processing of various operating data of the cable crane; It has a historical playback function. This function mainly performs historical playback similar to video software on the software running interface. It has fault diagnosis function and built-in fault diagnosis expert system, including fault phenomena, causes, solutions and other information of different equipment; Accurately record the operation position of the linkage table and the number of contactor actions, and combine the contactor current to provide early warning when the operation or action life is approaching; The system can track and judge whether the hook slips when ascending or descending, and whether the crane stalls when ascending or descending. This is an important issue that needs to be monitored during the operation of the cable crane. Hook slip: When lifting a heavy object, the motor torque is less than the weight of the heavy object, causing the heavy object to drag the motor to rotate and the heavy object to slide down; when lowering a heavy object, the motor torque is less than the weight of the heavy object, causing the heavy object to drag the motor to rotate. Stall: Whether in the process of lifting or lowering the heavy object, the motor has no torque, causing the heavy object to slide down suddenly; it can record the equipment direction, moving distance and speed corresponding to the operating gear; it has the function of comprehensive judgment and analysis of hook slippage and stall, and has the function of traction and pull limit analysis and control; With signal processing function: recorded, stored and displayed by the host computer cable crane intelligent monitoring management system software; signal acquisition method: the signal output interface of the travel limiter is RS485, which is collected by PLC; signal processing: recorded, stored, displayed and recorded the time when the alarm and fault occurred by the host computer cable crane intelligent monitoring management system software; With remote monitoring function: the system can upload real-time monitoring data to the cloud, and view the cable crane data in real time on the mobile APP and PC server.

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