Intelligent safety management system and method for tower crane lifting section operation

Abstract

The invention discloses an intelligent safety management system and method for operation of a lifting section of a tower crane, and the system comprises a management platform which is used for storing an operation plan, confirming the capability before operation execution, recording operation process data, and carrying out operation acceptance; the action detection module is mounted on a jacking mechanism of the tower crane and is used for detecting the moving state of the jacking ladder cage in real time and generating a moving signal; the height detection module is mounted on the tower crane and used for detecting the lifting height of the tower crane in real time and generating height data; the video monitoring module comprises a camera and is used for acquiring a video image of a tower crane lifting section operation area; the management platform is in communication connection with the motion detection module, the height detection module and the video monitoring module. According to the method, a safety redundancy management and control system covering the human-technology-object full dimension is constructed, the whole-process, intelligent and refined safety management of the lifting section operation of the tower crane is achieved, and the construction safety level and the management efficiency are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of safety management technology for special equipment in construction engineering, specifically to an intelligent safety management system and method for tower crane lifting section operation. Background Technology

[0002] Tower cranes are indispensable core vertical and horizontal transportation equipment in construction. Throughout their entire lifecycle, installation, hoisting (section raising), section lowering, and dismantling are among the most dangerous sub-projects. In particular, section raising and lowering operations, involving dynamic changes to the tower structure, involve complex procedures and a high concentration of risks, making them the primary stages where tower crane safety accidents occur.

[0003] Currently, the main technical deficiencies in the safety management of tower crane lifting section operations are as follows: 1. Reliance on manual labor and lack of process control: Traditional pre-operation inspections of lifting sections often rely on paper forms filled out manually by operators. The accuracy, timeliness, and completeness of the inspection results are difficult to guarantee, and there is a lack of effective supervision and traceability mechanisms. During operation, control of key processes still depends on the experience and sense of responsibility of on-site personnel, resulting in low standardization.

[0004] 2. Isolated monitoring equipment and lack of information linkage: Although video monitoring equipment is commonly deployed on construction sites, this equipment usually operates independently and fails to achieve intelligent linkage with the start-up of lifting sections and key actions (such as the start of jacking and the completion of standard section installation). This results in lengthy recorded video data, lack of emphasis on key points, and low efficiency in post-event review and accident analysis.

[0005] Among existing patented technologies, the currently disclosed tower crane safety monitoring technologies, including invention patent CN115557384A (disclosing a smart construction site tower crane monitoring system) and invention patent CN116873793A (disclosing a special equipment smart monitoring method system device and storage medium), mainly focus on collision prevention, load monitoring, and group tower scheduling during the normal operation phase of tower cranes. While accurately identifying the specific operating condition of the lifting section, these patents fail to address specific safety management for the special risks under this condition (such as personnel qualification verification, technical solution implementation, and monitoring of cage climbing movements). Another utility model patent, CN221440197U, discloses a tower crane lifting section jacking auxiliary device. Although it involves auxiliary devices for tower crane lifting sections, it emphasizes the physical mechanical structure's assistance in installing standard sections. While it can reduce manual intervention and improve operational safety to some extent, it focuses on ensuring the safety of the "object" during operation. It cannot identify tower crane lifting / lowering operations and has not formed a comprehensive safety management system covering all elements of "people," "technology," and "objects."

[0006] In summary, the existing technology lacks a comprehensive and integrated management system for the entire process of tower crane lifting section operation that combines work process control, automatic identification of key actions, intelligent video linkage, and multi-dimensional safety monitoring. This makes it difficult to meet the urgent need in the current construction industry for refined and intelligent management of major risk sources of tower cranes. Summary of the Invention

[0007] The purpose of this invention is to provide an intelligent safety management system and method for tower crane lifting section operation, which aims to improve the problems of high reliance on manual labor, lack of process control, poor linkage of isolated equipment information, and inability to achieve integrated intelligent control of all elements of the lifting section in the existing technology.

[0008] To achieve the above objectives, according to a first aspect of the present invention, the present invention provides an intelligent safety management system for tower crane lifting section operations, comprising: The management platform is used to store work plans, perform capability verification before work execution, record work process data, and conduct work acceptance. The motion detection module is installed on the jacking mechanism of the tower crane to detect the movement status of the jacking cage in real time and generate movement signals. The height detection module, installed on the tower crane, is used to detect the lifting height of the tower crane in real time and generate height data; The video monitoring module includes cameras for capturing video images of the tower crane lifting section's operating area; The management platform is communicatively connected to the motion detection module, the height detection module, and the video monitoring module, respectively. The management platform is configured as follows: Based on the received movement signal and height data, determine the start / stop status and progress of the lifting section operation; Based on the judgment result, the system controls the start and stop of the video monitoring module and generates a work record associated with the work process data.

[0009] Furthermore, it also includes a focusing target, installed on the top lifting cage of the tower crane, the focusing target being equipped with marking information for positioning and focusing; The camera in the video monitoring module is configured to recognize the identification information and adjust the focal length and shooting angle according to the identification information to achieve automatic tracking and shooting of the lifting cage.

[0010] Furthermore, the identification information on the focusing target includes equipment information identification for confirming the identity of the tower crane and video verification identification for providing focusing parameters.

[0011] Furthermore, the motion detection module includes a motion sensing device, which includes a trigger wheel that contacts the guide wheel of the lifting cage and a signal transmitting component. When the lifting cage moves, the guide wheel drives the trigger wheel to rotate, triggering the signal transmitting component to send the motion signal to the management platform.

[0012] Furthermore, the height detection module includes a laser rangefinder, a power module, a wireless communication device, and a signal analysis device; The laser rangefinder is used to measure the vertical distance from its installation point to the ground; The signal analysis device is used to convert the distance data collected by the laser rangefinder into the data format required by the management platform; The wireless communication device is used to exchange data with the management platform.

[0013] Furthermore, the laser rangefinder is installed in an unobstructed position on the tower crane cab or boom to measure the distance to the ground vertically downwards.

[0014] Furthermore, the management platform includes a field wireless data transceiver module for wireless communication with the motion detection module, the height detection module, and the video surveillance module.

[0015] According to a second aspect of the present invention, the present invention provides an intelligent safety management method for tower crane lifting section operations, applied to the aforementioned intelligent safety management system for tower crane lifting section operations, specifically including the following steps: S1: Input and store the lifting section operation plan through the management platform; S2: Before the operation begins, the capability verification is completed through the management platform. S3: The motion detection module monitors the movement status of the lifting cage in real time; S4: When the motion detection module detects movement, the management platform queries whether there is a corresponding work plan; S5: If a corresponding work plan exists, normal operation is determined to have started, triggering the video monitoring module to start recording, and the height detection module monitors the changes in the tower crane's lifting height in real time, records key events based on the height change data, and compares them with the work plan; S6: When the height detection module detects that the tower crane's lifting height has reached the preset value of the work plan, the work is determined to be completed, and the video monitoring module is triggered to stop recording. S7: Conduct work acceptance through the management platform and generate work records that include video recordings, key events, and acceptance forms.

[0016] Furthermore, in step S2, the pre-operation capability verification includes electronic verification of the qualifications of the operators, safety technical briefing records, and equipment status inspection results.

[0017] Furthermore, in step S4, if the management platform does not find the corresponding work plan, it is determined to be a violation of the work plan, and the video monitoring module is controlled to record and / or issue an alarm; in step S5, an alarm message is issued when the actual height change is inconsistent with the preset height value in the work plan.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention accurately identifies the start and stop of tower crane lifting section operation through the linkage of motion detection module and height detection module. Through the management platform, it realizes electronic capability confirmation before operation, recording of key events and intelligent video linkage during operation, and generation of complete record after operation, and builds a safety redundancy control system covering the entire dimension of "human-technology-material", thereby realizing the whole process, intelligent and refined safety management of tower crane lifting section, a critical project, and effectively improving the level of construction safety and management efficiency.

[0019] 2. This invention achieves automatic and accurate identification of tower crane lifting section operation actions through the linkage of the motion detection module and the height detection module, solving the problem that existing technologies cannot distinguish between normal operation and high-risk operation conditions, and providing a foundation for special safety management.

[0020] 3. This invention uses a management platform to electronically confirm the qualifications of operators, safety technical briefing records, and equipment status inspection results, which solves the problem of the difficulty in ensuring the authenticity and timeliness of the inspection results of traditional paper forms, and realizes standardized and traceable management of pre-operation capability confirmation.

[0021] 4. This invention, through the cooperation of a video monitoring module and a visual focus target, realizes automatic tracking and shooting of the lifting cage and accurate recording of key nodes, solving the problems of isolated operation of traditional monitoring equipment, lengthy recording data, and lack of emphasis on key nodes, and greatly improving the efficiency of post-event review and accident analysis.

[0022] 5. This invention uses the violation judgment logic configured in the management platform to automatically start recording and alarm when a mobile signal is detected and there is no corresponding work plan, filling the management gap of construction without a plan or supervision, and realizing proactive supervision and early warning of violations. Attached Figure Description

[0023] Figure 1 A block diagram of the module structure of the intelligent safety management system for tower crane lifting section operation provided by the present invention; Figure 2This is a schematic diagram of the installation of the visual focus target in the intelligent safety management system for tower crane lifting section operation provided by the present invention; Figure 3 A schematic diagram of the mobile sensing device in the intelligent safety management system for tower crane lifting section operation provided by the present invention; Figure 4 This is a schematic diagram of the installation of the height detection module of the intelligent safety management system for tower crane lifting section operation provided by the present invention; Figure 5 This is a schematic diagram of the height detection module of the intelligent safety management system for tower crane lifting section operation provided by the present invention; Figure 6 This is a schematic diagram of the visual focus target of the intelligent safety management system for tower crane lifting section operation provided by the present invention; Figure 7 This is a flowchart of the intelligent safety management method for tower crane lifting section operation provided by the present invention.

[0024] Reference numerals: 1. Trigger wheel; 2. Signal transmitting component; 3. Guide wheel; 4. Laser rangefinder; 5. Power module; 6. Wireless communication device; 7. Signal analysis device; 8. Visual focus target; 9. Altitude detection module. Detailed Implementation

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1 like Figure 1 As shown in the figure, this embodiment provides an intelligent safety management system for tower crane lifting section operation, which mainly includes a management platform, a motion detection module, a height detection module 9, and a video monitoring module. The motion detection module, the height detection module 9, and the video monitoring module are all connected to the management platform.

[0027] The management platform is the core control unit of the system. In this embodiment, it is implemented using terminal equipment equipped with the "YYCC Smart Construction" system, which has been granted software copyright. The "Mechanical Management Warehouse" module is specifically used for the management of tower crane lifting section operations. Its specific functions include storing work plans, confirming capabilities before execution of operations, recording work process data, and conducting work acceptance. The terminal equipment can be an industrial-grade explosion-proof tablet or a construction site-specific industrial control computer, adaptable to the complex working environment of construction sites with high dust and strong electromagnetic interference, ensuring stable operation of the system around the clock.

[0028] The management platform includes a field wireless transceiver module for wireless communication with the motion detection module, height detection module 9, and video monitoring module, enabling real-time data interaction and remote command distribution. This field wireless transceiver module supports 4G, 5G, and construction site LoRa dual-mode communication, exhibiting strong anti-interference capabilities and ensuring packet loss-free long-distance data transmission. The "Mechanical Management Cabin" module, as the system's logical control core, is responsible for determining the start / stop status and progress of the lifting section operation based on received motion signals and height data, and controlling the start / stop of the video monitoring module based on the determination results.

[0029] The motion detection module is installed on the tower crane's jacking mechanism to detect the movement of the jacking cage in real time and generate movement signals. For example... Figure 2 and Figure 3 As shown, the motion detection module includes a motion sensor, which consists of a trigger wheel 1 and a signal transmitting component 2. During installation, the motion sensor is mounted facing the guide wheel 3 of the tower crane's lifting cage, ensuring that the trigger wheel 1 and guide wheel 3 are in close contact. When the lifting cage moves vertically, the guide wheel 3 rotates, causing the trigger wheel 1 to rotate, which in turn triggers the signal transmitting component 2 to send a motion signal to the on-site wireless transceiver module of the management platform. The trigger wheel 1 is made of wear-resistant rubber-coated material, which is non-slip and resistant to mechanical wear, suitable for long-term high-frequency rotation conditions; the signal transmitting component 2 has a built-in low-power wake-up chip, activating the transmission function only when the trigger wheel rotates, effectively reducing standby power consumption.

[0030] The height detection module 9, also known as the distance measuring module, is installed on the tower crane to detect the crane's lifting height in real time and generate height data. For example... Figure 4 and Figure 5As shown, the height detection module 9 includes a laser rangefinder 4, a power supply module 5, a wireless communication device 6, and a signal analysis device 7. The laser rangefinder 4 is installed in an unobstructed position on the tower crane cab or boom, measuring the distance vertically downwards to the ground to avoid interference from ground objects. It is preferably positioned within 2 meters of the center of the tower crane's projected image. The laser rangefinder 4 is an industrial-grade, high-precision, strong-light-resistant model, capable of withstanding direct sunlight, rain, and fog interference, ensuring accurate and stable distance measurement data. The signal analysis device 7 converts the distance data collected by the laser rangefinder 4 into the data format required by the management platform. The signal analysis device 7 is an industrial-grade embedded signal processing unit adapted to the construction site. Its core integrates an analog-to-digital converter chip, a data format decoding module, an instruction transceiver unit, and a microcontroller chip (MCU), along with a circuit protection module. It is integrated with other components of the height detection module 9 within the same protective housing. It is a dedicated analysis component adapted to the "Yiye Smart Construction" system, operating automatically without an external operating terminal. Serving as a "data translation and command bridge" between the laser rangefinder 4, the management platform, and the wireless communication device 6, it not only performs the analysis and conversion of the original ranging signal but also acts as a relay for bidirectional command transmission and reception. The wireless communication device 6 is used for data exchange with the on-site wireless transceiver module of the management platform. The power module 5 provides power to the laser rangefinder 4, the wireless communication device 6, and the signal analysis device 7. The power module 5 adopts a solar-powered lithium battery integrated power supply structure, autonomously storing electricity through photovoltaic panels during the day and relying on lithium batteries for continuous power supply at night. It is also equipped with low-voltage overcharge and over-discharge protection circuits, making it suitable for installation scenarios where there are no fixed power supply points on the construction site.

[0031] The signal parsing device 7 operates on a two-way data and command interaction principle: In the data parsing and conversion stage, the analog electrical signal / instrument's proprietary digital signal output by the laser rangefinder 4 is converted from analog to digital and decoded according to the format, and then re-encoded into a standardized height value in meters / centimeters according to the preset requirements of the "Yiye Smart Construction" system, and transmitted to the wireless communication device 6 for transmission to the management platform. In the command transmission and reception relay stage, the device receives remote commands from the management platform forwarded by the wireless communication device 6, decodes them into operation signals recognizable by the laser rangefinder 4, and sends commands to control the laser rangefinder 4 to complete actions such as starting real-time ranging, stopping ranging, and calibrating the ranging benchmark. At the same time, the device reverse-parses the operating status signal of the laser rangefinder 4 and transmits it to the management platform to achieve real-time feedback of equipment status.

[0032] The video surveillance module includes a camera and a wireless communication unit electrically connected to the camera. It is used to capture video images of the tower crane's lifting section operating area and transmit them to the management platform via the wireless communication unit. Figure 2 and Figure 6As shown, the system also includes a focus target 8, installed on the railing of the tower crane's lifting cage. The focus target 8 has identification information for positioning and focusing. In this embodiment, this identification information includes a device information QR code for confirming the tower crane's identity and a video verification QR code for providing focus parameters. Upon receiving the work plan, the management platform calls the corresponding camera to locate and identify the focus target 8. The camera first reads the device information QR code to confirm the target tower crane is correct, then reads the video verification QR code, and automatically adjusts the focal length and shooting angle based on the provided focus data, achieving precise focusing and automatic tracking of the lifting cage—the core work area. The camera uses an outdoor waterproof and dustproof pan-tilt high-definition camera, supporting 360° horizontal rotation and large-angle tilt adjustment, enabling clear identification of the target QR code from a distance. The focus target 8 uses a highly reflective and wear-resistant coated material, resistant to wind, sun, and rain, and will not fade or wear over long-term use, ensuring accurate identification.

[0033] Working principle: The management platform communicates with the motion detection module, the height detection module 9 and the video monitoring module respectively. Based on the received motion signals and height data, it determines the start and stop status and progress of the lifting section operation. Based on the determination results, it controls the start and stop of the video monitoring module and generates operation records with associated operation process data.

[0034] Specifically, under normal operating conditions, after management personnel input the work plan and complete the pre-operation capability confirmation through the management platform, the management platform calls the camera of the video monitoring module to aim at and lock onto the corresponding tower crane's focus target 8. When the lifting cage begins to move, the motion sensor of the motion detection module is triggered, sending a motion signal to the management platform. The management platform determines that the lifting section operation has begun and commands the video monitoring module to start recording. During the operation, the height detection module 9 uploads height data in real time, and the management platform records the time points corresponding to the height changes of each standard section as key events and compares them with the work plan. When the data from the height detection module 9 shows that the final height of the work plan has been reached, the management platform determines that the operation is complete and controls the video monitoring module to stop recording. Finally, the management platform generates an operation record associated with the operation process data (including video recordings, key events, acceptance forms, etc.).

[0035] In cases of unauthorized operations, if the motion detection module's motion sensor is triggered, but no corresponding work plan for the tower crane is found in the management platform, the platform determines it as an unauthorized operation. It immediately activates the camera to capture the event and sends an alarm to the pre-set management personnel. Simultaneously, the height detection module 9 is activated to check the height data; if the height changes, the alarm level is increased. Alarm information is simultaneously sent via platform pop-up notifications, SMS push notifications, and mini-program messages, ensuring management personnel receive risk warnings immediately.

[0036] Example 2 This embodiment provides an intelligent safety management method for tower crane lifting section operations. This method is applied to the intelligent safety management system for tower crane lifting section operations in Embodiment 1, such as... Figure 7 As shown, this intelligent security management method includes the following steps: S1. Input and store the lifting section operation plan through the management platform: Construction management personnel input lifting section operation plans into the management platform, including information such as the tower crane number, planned operation time, planned number of standard sections to be lifted or lowered, and preset height values, which are then stored in the platform's database. The platform database adopts a cloud-based encrypted storage architecture, with automatic data backup to prevent data loss. It also features hierarchical access control, ensuring that personnel in different positions can only view operation plan information within their corresponding permissions, thus guaranteeing data security and compliance.

[0037] S2. Before the start of the task, complete the pre-task capability verification through the management platform: Before the work begins, on-site personnel use the "Pre-Construction Capability Confirmation Form" in the management platform to conduct a step-by-step check. Specifically, the pre-work capability confirmation includes the electronic confirmation of the operator's qualifications (such as the validity of special operation certificates), safety technical briefing records (whether written and oral briefings have been completed), and equipment status inspection results (such as the hydraulic system, guide wheels, standard section connection status, etc.). During the confirmation process, photos must be taken for documentation and electronic signatures must be obtained. After confirmation, the management platform records the confirmation information. The system has a built-in automatic qualification validity verification function. If it detects that the operator's certificate has expired or the briefing process has not been completed, it will automatically lock the work start permission, eliminating the safety hazards of unlicensed work and incomplete briefings from the source.

[0038] S3. Real-time monitoring of the movement status of the lifting cage via the motion detection module: The motion detection module monitors the movement of the lifting cage in real time. The motion sensor of the module is installed at the guide wheel 3 of the lifting cage. When the cage moves, the trigger wheel 1 rotates, causing the signal transmitting component 2 to send a movement signal to the management platform. The motion detection module features an anti-false trigger filtering algorithm, which can filter out false trigger signals caused by slight vibrations at the construction site, identifying only the true and continuous movement of the cage, thus improving monitoring accuracy.

[0039] S4. Check if a corresponding job plan exists: When the management platform receives a movement signal from the motion detection module, it immediately queries the database to see if there is a corresponding lifting section operation plan for that tower crane with a matching time. The system uses a millisecond-level data retrieval mechanism, which can quickly complete the bidirectional matching of equipment number and operation time period without retrieval delay.

[0040] S5. If a work plan exists, proceed with normal work processing: If a corresponding work plan exists, the management platform determines that the normal work has begun and performs the following operations: First, the video monitoring module is triggered to start recording. The management platform calls the camera and automatically adjusts the focus and shooting angle by recognizing the focus target 8 (including the equipment information QR code and video verification QR code) installed on the lifting cage, so as to realize automatic tracking and shooting of the lifting cage.

[0041] Simultaneously, the height detection module 9 monitors changes in the tower crane's lifting height in real time. The laser rangefinder of the height detection module 9 measures the distance to the ground vertically downwards, and the signal analysis device 7 converts the distance data into the format required by the management platform, which is then uploaded in real time via the wireless communication device 6. The management platform calculates the number of sections raised or lowered based on the height change data, records the time point corresponding to the height change of each standard section as a key event, and compares the actual height change with the preset height value in the work plan.

[0042] When the actual height change differs from the preset height value in the work plan (e.g., lifting one section too many or failing to reach the predetermined height), the management platform immediately issues an alarm, notifying on-site management personnel and operators to handle the situation. Simultaneously, an automatic pop-up window displays the deviation value and risk level, assisting on-site personnel in quickly identifying the problem and promptly rectifying it.

[0043] S6. Task completion check and recording stop: When the height detection module 9 detects that the tower crane's lifting height has reached the preset value of the work plan, the management platform determines that the work is complete and triggers the video monitoring module to stop recording. Simultaneously, after confirming that the motion detection module has no movement signal and that the height data is constant, the system releases control permissions for the camera. A preset delay threshold is set for the height data constancy determination to avoid misjudgments due to minor fluctuations in height data caused by wind load swaying, thus improving the reliability of the work completion determination.

[0044] S7. Work Acceptance and Record Generation: After the work is completed, the operators fill out an acceptance form through the management platform to confirm the results. The management platform packages the entire video of the operation, all key event information (including start time, completion time of each standard section, end time, etc.), and the acceptance form together to generate a complete work record and stores it for later traceability and retrieval. The archived file automatically generates a unique traceability number, supporting multi-dimensional retrieval by tower crane number, operation date, and operator, greatly facilitating completion verification and safety traceability.

[0045] Furthermore, in step S4, if the management platform receives a movement signal from the motion detection module but does not find a corresponding work plan, it is determined to be a violation. At this time, the management platform immediately performs the following operations: ① It activates the camera to track and photograph the focal target 8; ② It activates the height detection module 9 to check the height data, and the signal analysis device 7 analyzes the distance measurement data from the laser rangefinder 4 in real time and converts it into a standardized height value, which is then fed back to the management platform; ③ It sends an alarm message to the preset management personnel. If the height detection module 9 detects a change in height, it determines it to be a "violation of lifting section operation," increases the alarm level, and continues recording until the violation stops.

[0046] In summary, this invention accurately identifies the start and stop of tower crane lifting section operations through the linkage of the motion detection module and the height detection module 9. The management platform enables electronic capability confirmation before operation, recording of key events and intelligent video linkage during operation, and generation of complete records after operation. This constructs a comprehensive safety redundancy control system covering all dimensions of "human-technology-materials," thereby achieving intelligent and refined safety management of this critical engineering project, effectively improving construction safety and management efficiency. High-level alarms will be simultaneously pushed to the project safety director and the enterprise's back-end management terminal, achieving multi-level linkage supervision and strengthening the control of violations.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A smart safety management system for tower crane lifting section operation, characterized in that, include: The management platform is used to store work plans, perform capability verification before work execution, record work process data, and conduct work acceptance. The motion detection module is installed on the jacking mechanism of the tower crane to detect the movement status of the jacking cage in real time and generate movement signals. The height detection module, installed on the tower crane, is used to detect the lifting height of the tower crane in real time and generate height data; The video monitoring module includes cameras for capturing video images of the tower crane lifting section's operating area; The management platform is communicatively connected to the motion detection module, the height detection module, and the video monitoring module, respectively. The management platform is configured as follows: Based on the received movement signal and height data, determine the start / stop status and progress of the lifting section operation; Based on the judgment result, the system controls the start and stop of the video monitoring module and generates a work record associated with the work process data.

2. The intelligent safety management system for tower crane lifting section operation according to claim 1, characterized in that, It also includes a focusing target, which is installed on the top lifting cage of the tower crane, and the focusing target is equipped with marking information for positioning and focusing; The camera in the video monitoring module is configured to recognize the identification information and adjust the focal length and shooting angle according to the identification information to achieve automatic tracking and shooting of the lifting cage.

3. The intelligent safety management system for tower crane lifting section operation according to claim 2, characterized in that, The identification information on the focusing target includes equipment information identifiers used to confirm the identity of the tower crane and video verification identifiers used to provide focusing parameters.

4. The intelligent safety management system for tower crane lifting section operation according to claim 1, characterized in that, The motion detection module includes a motion sensing device, which includes a trigger wheel that contacts the guide wheel of the lifting cage and a signal transmitting component. When the lifting cage moves, the guide wheel drives the trigger wheel to rotate, triggering the signal transmitting component to send the motion signal to the management platform.

5. The intelligent safety management system for tower crane lifting section operation according to claim 1, characterized in that, The height detection module includes a laser rangefinder, a power module, a wireless communication device, and a signal analysis device; The laser rangefinder is used to measure the vertical distance from its installation point to the ground; The signal analysis device is used to convert the distance data collected by the laser rangefinder into the data format required by the management platform; The wireless communication device is used to exchange data with the management platform.

6. The intelligent safety management system for tower crane lifting section operation according to claim 5, characterized in that, The laser rangefinder is installed in an unobstructed position on the tower crane cab or boom, measuring the distance vertically downwards to the ground.

7. The intelligent safety management system for tower crane lifting section operation according to claim 1, characterized in that, The management platform includes a field wireless data transceiver module for wireless communication with the motion detection module, the height detection module, and the video surveillance module.

8. A method for intelligent safety management of tower crane lifting section operation, applied to the intelligent safety management system for tower crane lifting section operation as described in any one of claims 1-7, characterized in that, Includes the following steps: S1: Input and store the lifting section operation plan through the management platform; S2: Before the operation begins, the capability verification is completed through the management platform. S3: The motion detection module monitors the movement status of the lifting cage in real time; S4: When the motion detection module detects movement, the management platform queries whether there is a corresponding work plan; S5: If a corresponding work plan exists, normal operation is determined to have started, triggering the video monitoring module to start recording, and the height detection module monitors the changes in the tower crane's lifting height in real time, records key events based on the height change data, and compares them with the work plan; S6: When the tower crane lifting height is detected by the height detection module to reach the preset value of the operation plan, the operation is determined to be completed, and the video monitoring module is triggered to stop recording; S7: Conduct work acceptance through the management platform and generate work records that include video recordings, key events, and acceptance forms.

9. The intelligent safety management method for tower crane lifting section operation according to claim 8, characterized in that, In step S2, the pre-operation capability verification includes electronic verification of the qualifications of the operators, safety technical briefing records, and equipment status inspection results.

10. The intelligent safety management method for tower crane lifting section operation according to claim 8, characterized in that, In step S4, if the management platform does not find the corresponding work plan, it is determined to be a violation of the work plan, and the video monitoring module is controlled to record and / or issue an alarm; in step S5, an alarm message is issued when the actual height change is inconsistent with the preset height value in the work plan.

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