55 results about "'Active' protection" patented technology

The invention relates to the technical field of overcurrent protection, in particular to an active protection control method and system for power distribution switch control equipment, and the method comprises the following steps: a current sensing device obtains a current value sequence, a sliding window generates a current slope, impedance detection obtains an impedance sequence, and an impedance rate is obtained through least square; a correction coefficient is obtained through a difference value between an impedance rate and a reference value; a disturbance rate is calculated through a current extreme value; an input classifier outputs a control instruction; a threshold and instruction logic and operation are carried out; according to the method, the coupling relation between the current slope and the impedance rate is dynamically analyzed, a multi-dimensional parameter system is constructed, a dynamic adjustment threshold value of a composite judgment basis is established, disturbance and overload are distinguished, the reliability is enhanced by combining a classifier recognition mode and logic and operation, feedback closed-loop control is introduced, the non-linear load adaptability is improved, and the maloperation rate is reduced; the sensitivity is enhanced, and the safety margin is optimized.

The invention relates to the technical field of railway transportation safety, in particular to a multi-source data fusion train area sensing and active protection system and method.The method comprises the steps that a data acquisition module obtains obstacle sensing data in front of a train and receives state and position data reported by a personnel terminal; the space-time reference and electronic fence management module provides unified positioning and map services and generates an electronic fence according to a plan; the multi-source situation fusion module carries out fusion processing on the information to generate a global dynamic situation; the real-time risk quantification module calculates a collision time TTC based on the situation, and outputs an evaluation result according to a dynamic risk model; the intelligent early warning decision-making module generates a graded early warning instruction containing specific action guidance; and finally, the early warning cooperative execution module synchronously distributes the instruction to the train and personnel terminal. According to the invention, the conversion from passive monitoring to active early warning is realized, and the safety protection capability of driving and operation in a complex environment is improved.

The invention relates to the technical field of power equipment, and particularly discloses a dynamic risk assessment system and method for power equipment, and the method comprises the steps: respectively extracting a vibration energy distribution characteristic value and a current harmonic distortion characteristic value through collecting a vibration frequency signal and a differential current signal of a power distribution system of the power equipment in real time; the method is used for evaluating the mechanical loosening risk and the current abnormal risk, constructing a multi-dimensional fault feature vector through the two types of feature values, inputting the multi-dimensional fault feature vector into a dynamic probability graph model based on a Bayesian network for fusion analysis, outputting the equipment fault probability, generating an early warning level and a control strategy according to a preset threshold value, and achieving closed-loop diagnosis and active protection. The method can effectively identify the early fault hidden danger of the power equipment, improves the diagnosis accuracy and the system safety, and is suitable for power fire monitoring and intelligent operation and maintenance scenes under complex working conditions.

The invention discloses a derrick rotation supporting mechanism overturning monitoring system with a remote monitoring function, and relates to the technical field of remote monitoring, and the derrick rotation supporting mechanism overturning monitoring system comprises the following steps: acquiring vibration acceleration and bolt pre-tightening force data, and performing spectrum analysis to obtain a resonance coefficient so as to judge a resonance state; and an overturning coefficient is calculated according to the bolt pre-tightening force time sequence change, so that overturning risk prediction and early warning are realized, and safe operation of a mechanism is guaranteed. Resonance risks are monitored in real time through vibration spectrum analysis, bolt pre-tightening force attenuation and structural fatigue are effectively prevented, the active protection capacity of a system is improved, overturning risks are dynamically evaluated based on bolt pre-tightening force time sequence changes, the chain loosening effect is accurately recognized, overturning advanced early warning is achieved, and the safety and reliability of a mechanism under the complex working condition are enhanced.

The invention discloses a lightning disaster early warning protection system and method, and the system comprises a lightning parameter collection module which is used for obtaining the atmospheric electric field intensity, the lightning occurrence position and the thunderstorm movement track in real time; the environment parameter monitoring module is used for collecting surrounding environment data of the high-risk place; the data processing center is used for being connected with the thunder and lightning parameter acquisition module and the environmental parameter monitoring module, a thunder and lightning early warning model based on an improved random forest algorithm is built in the data processing center, and grading early warning information is generated by fusing and analyzing thunder and lightning parameters and environmental parameters; the early warning terminal is used for receiving and displaying the graded early warning information and triggering an alarm when the early warning grade reaches a preset threshold value; and the protection execution mechanism is used for executing targeted protection action according to the instruction of the data processing center, and is also used for gradually relieving the protection state according to a preset program after the data processing center detects that the thunder threat is relieved.

This invention discloses a smart pilot protection and rescue system. This system constructs an intelligent workflow from three aspects of intelligent functional characteristics: perception, decision-making, and action. It comprehensively optimizes the decision-making modules of three subsystems: intelligent active protection, intelligent ejection rescue, and wearable human-machine interaction, forming a powerful, responsive, and AI-powered situational diagnosis subsystem. This enables a significant transformation of the protection and rescue system from a passive, non-intelligent agent to an active, intelligent agent. Based on the pilot's personalized physiological, behavioral, and intentional information, it shifts from a broad, general performance model geared towards the general population to a refined, optimization-oriented model focused on the individual. It can systematically meet the protection, rescue, and wearable human-machine interaction needs of next-generation and future highly intelligent fighter jets (including smart cockpits), ensuring pilot safety while enhancing their situational awareness and decision-making response capabilities, thereby improving their combat effectiveness.

The application relates to the technical field of building detection, and discloses a building outer wall crack detection device which comprises a detection mechanism, a dynamic bearing mechanism and an auxiliary support assembly. The detection mechanism comprises a shell and an auxiliary support assembly arranged at the top of the shell. The dynamic bearing mechanism comprises a mounting plate, an adaptive assembly arranged on one side of the mounting plate and a damping gasket fixedly arranged on the other side of the mounting plate. The adaptive buffer structure of the dynamic bearing mechanism is adopted to automatically compensate the deformation of metal materials, so that the detection reference is long-term stable. The sealing and drying mechanism is provided with multiple protective barriers and a humidity sensing alarm system. The sealing and drying mechanism not only blocks the invasion of external pollutants, but also triggers an early warning when the sealing material is initially aged. The adjustable rigid structure of the auxiliary support assembly is matched with the flexible connection design, so that the support strength is guaranteed and the thermal expansion and cold contraction of the material can be adapted. The active protection system is formed, the material performance attenuation in the initial stage can be identified and warned, and the influence of the accumulation of hidden damage on the detection precision is avoided.

The invention discloses a method and device for actively preventing a vehicle from colliding with a person and the vehicle, and belongs to the technical field of vehicle active safety. The method comprises the steps that the real-time position of a vehicle to be driven is compared with a preset electronic fence database, and when it is judged that the vehicle enters a crowded key area, a protection system is forcibly activated; after the system is activated, a special surrounding person identification model is operated to enhance perception and accurately identify surrounding pedestrians, children, baby carriages, wheelchairs and other targets; synchronously fusing the target information and the state of the vehicle, and dynamically evaluating the collision risk level; and finally, according to the risk level and in combination with operation feedback of a driver, graded active control from acousto-optic warning, partial braking and full-force automatic braking to cooperative steering emergency risk avoiding is executed. Aiming at the defects that an existing active safety system is insufficient in protection for personnel outside a vehicle and can be manually closed, intelligent active protection which cannot be shielded in a key area and takes pedestrians as a core is achieved, the risk that the vehicle is used for malicious collision or is out of control to cause serious accidents is effectively reduced, and the system is easy to deploy based on an existing vehicle platform.

This invention discloses a vehicle-mounted mobile drone swarm charging power supply protection system, belonging to the field of drone charging technology. Addressing the problems of existing vehicle-mounted charging systems, such as single protection mechanisms, poor adaptability to vehicle scenarios, and lagging protection, the system includes a vehicle-mounted support unit, an energy storage power supply unit, a drone swarm charging interface unit, a multi-channel hierarchical power adjustment unit, a multi-dimensional status sensing unit, a core protection control unit, a vehicle environment adaptation protection unit, and a wireless interaction unit. This invention constructs a two-level hierarchical collaborative protection architecture of total power and individual channels, combined with a dynamic power allocation algorithm to achieve overload and overcurrent protection for swarm charging. It designs a contact fault prediction algorithm based on dynamic impedance matching and vibration characteristic correlation, adapting to active protection in vehicle bumpy scenarios. Simultaneously, it achieves linkage protection between the vehicle main power supply and the charging power supply, as well as environmental adaptive threshold correction.

The presently disclosed subject matter includes an active protection system and a method, dedicated for detecting, locating, and incapacitating beam-riding missiles and in that way protecting an asset from being targeted by the missile. According to some examples following receipt of a threat-indication, the active protection system estimates a location of a beam used for directing a threat (e.g., ATGM) to the target and launches an aerial platform that flies in the opposite direction along the beam until it meets and incapacitates the incoming threat.

The invention relates to the technical field of vehicles, in particular to a vehicle early warning system and method, a vehicle and a storage medium, the system comprises an acquisition assembly, an expelling module, an early warning module and a control module, and the acquisition assembly comprises a radar module and an infrared thermal imaging module; the expelling module is used for expelling living targets; the early warning module is used for giving an early warning to a driver; and the control module controls the expelling module to expel the living body target according to the data collected by the acquisition assembly, and controls the early warning module to give an early warning to the driver. Therefore, the problem that potential safety hazards are caused due to the fact that active protection for the vehicle bottom and the peripheral close-range area in the static state of the vehicle is lacked in the related technology and animals or pedestrians possibly stay in the dangerous area without perceiving that the vehicle is about to start is solved.

The application relates to the technical field of power utilization protection, and provides a power utilization equipment active protection system, a power utilization equipment active protection method and device, which comprise a current sensor, a voltage comparator and a relay; the input end of the current sensor is connected with the power utilization equipment, is used for collecting the running current of the power utilization equipment, converting the running current into a running voltage, and inputting the running voltage into the voltage comparator; the voltage comparator comprises a first input end, a second input end and an output end; the first input end is connected with the output end of the current sensor and is used for receiving the running voltage; the second input end is used for receiving a reference voltage; the output end is used for outputting a voltage comparison result obtained by comparing the running voltage with the reference voltage; the relay is connected with the output end of the voltage comparator, is used for receiving the voltage comparison result, and controls the on-off of a connecting circuit between a power supply module and the power utilization equipment based on the voltage comparison result. The active monitoring and timely cut-off protection of the abnormal state of the power utilization equipment are realized.

The invention discloses a dynamic following type acousto-optic safety protection system and method for ship assembly, and belongs to the technical field of ship manufacturing and assembly engineering. In order to solve the problems that in ship assembling operation, static safety protection measures cannot adapt to dynamic hoisting and assembling processes, blind areas and lagging exist in manual monitoring, an existing sensing and alarming device operates in an isolated mode and lacks intelligent collaboration, and accident advanced prediction and active protection cannot be achieved, the device comprises a walking mechanism; the sensor group is used for monitoring the position of the installed equipment and the surrounding environment state in real time; the video monitoring module is used for identifying and positioning operators in real time; the servo driving module is used for driving the walking mechanism to move along with the mounted equipment; the sound-light alarm system is used for sending out a warning signal according to the dangerous state; and the PLC control module dynamically controls the servo driving module to adjust the monitoring position according to data fed back by the sensor group and the video monitoring module, and judges whether to trigger sound-light alarm or not. The device is used for ship assembly operation.

An active isolation system and method for a deep-shaft tail rope based on multi-source information fusion positioning. The active isolation system comprises a tail rope separation beam (5), a positioning system (1), and an active protection system (2). The positioning system comprises a lidar and 2N visual positioning assemblies, and each visual positioning assembly comprises an X-direction camera and a Y-direction camera. The active protection system comprises 2N tail rope position adjustment assemblies corresponding one-to-one to 2N tail rope separation chambers (5-1), and each tail rope position adjustment assembly comprises a plurality of X-direction nozzles (2-1) and at least one Y-direction nozzle (2-2). The system can calculate the spatial position of a tail rope by using two perpendicularly arranged visual sensors to perform detection on the same tail rope at the same height. The position of a tail rope calculated from each image frame is compared with a preset threshold in real time. If the position of the tail rope exceeds the preset threshold, a nozzle in the tail rope position adjustment assemblies ejects an airflow so as to apply a force to the tail rope in the opposite direction, thereby actively avoiding collision and friction between the tail rope and the tail rope separation beam.

The invention discloses an embedded electromagnetic pulse precursor early warning and feature code protection method and system, and belongs to the technical field of electromagnetic compatibility and active protection, and the method comprises the steps: extracting the time-frequency features of a precursor wave signal, and predicting the threat parameters of a main pulse according to a mapping relation determined by a time-frequency coupling physical model; extracting multi-dimensional physical characteristics of system damage response and compressing and encoding the multi-dimensional physical characteristics into electromagnetic damage characteristic codes so as to retrieve a knowledge base to obtain protection strategy parameters; a fixed-point number is adopted to execute a protection strategy, a weight updating process is constructed into a differential inclusion system model containing a quantization noise disturbance term, and a sufficient condition for convergence of a weight index is analyzed and deduced through a Lyapunov stability theory. According to the method, the sampling bottleneck of a high-speed ADC is avoided, and nanosecond-level beforehand early warning is realized; through feature code compression, empirical multiplexing is realized under KB-level storage; and meanwhile, stable convergence of fixed-point number weight update under quantization noise is ensured, so that the protection strategy has both real-time performance and robustness.

The utility model discloses a kind of gas leakage detection devices of being convenient for carrying, including detector body, connecting pipe, install the top of detector body, detection probe, install one end of connecting pipe;For achieving the protection mechanism that storage protection is carried out to detection probe, and protection mechanism is arranged at the side of detector body, the utility model is set through the setting of protection mechanism, the active protection of detection probe is realized, when device is in carrying or idle state, protection mechanism can store detection probe in protection structure, effectively avoid detection probe and external object from colliding by physical isolation, to protect its internal precision component from mechanical damage, the setting of protection mechanism is in keeping the portability of device, also significantly improve the durability of detection probe, ensure that detection probe can long-term maintain high detection accuracy and sensitivity, avoid performance attenuation or function failure caused by collision, so as to can prolong its service life.

The invention provides a high-speed bridge-crossing construction falling risk active protection device and method, and the method comprises the steps: controlling each prescribed sensor to collect corresponding real-time sensing data of a hanging basket appliance under different sensing dimensions, and constructing a real-time operation posture of the hanging basket appliance, according to the real-time operation posture, the corresponding inclination angle of the hanging basket appliance in each direction is recognized, the rollover area of the hanging basket appliance is recognized, according to the rollover area, electromagnetic braking unfolding is conducted on a corresponding anti-falling net, the anti-falling net is controlled to cover the rollover area, and the rollover area of the hanging basket appliance is controlled. The risk level of the rollover is determined according to the coverage range of the rollover area in the bridge construction site and the construction tools contained in the hanging basket tool, a related protection troubleshooting mode is started and displayed, high-altitude falling accidents can be effectively prevented, the existing high-speed traffic safety is guaranteed, and the method is suitable for large-span bridge cantilever construction.

The embodiment of the invention provides a dynamic adaptation and active protection method for a pipe gallery cable. The method comprises the steps that a modularized and splicable dynamic adaptation type cable bearing unit with an adjustable clamping groove and a movable base is constructed; deploying a cable entanglement processing mechanism based on sensor early warning and mechanical structure automatic dredging; building an environmental response type active protection system which triggers a grading strategy according to temperature, humidity, corrosive gas and dust concentration; an integrated cable management terminal integrating bearing, early warning, dredging and protection functions is constructed; and designing a cable full-life-cycle tracing mechanism for binding the NFC tag and the bearing unit. The problems of fixed cable layout, passive entanglement dredging, lack of pertinence in protection and scattered management in the prior art are solved, dynamic adaptation, active early warning dredging, precise protection and integrated management and control of cable management are realized, the cable fault occurrence rate is remarkably reduced, the operation and maintenance efficiency is improved, and the method is suitable for cable management of various comprehensive pipe galleries.

This invention discloses a multi-layered, proactive protection method and system for security platforms. It generates a traffic tag set by analyzing the source anchor points of multi-level traffic scrubbing data, decomposes the attack chain, filters and identifies interruption nodes to determine attack propagation paths, and extracts features of protection blind spots to generate a threat threshold matrix. It quantifies the temporal coordination strength and periodic superposition effect between attack signals, identifies superimposed threat combinations, dynamically adjusts the threat threshold matrix, and generates supplementary protection parameters. Through auditing and source tracing analysis, it tracks the triggering trend and reverse propagation path of protection responses, locates silent abrupt change anomalies, and extracts a multi-dimensional protection feature set. Finally, it performs nonlinear fusion of the threat threshold matrix and supplementary protection parameters, combines forged response attenuation assessment to determine dynamic response weights, and drives the tiered output of the protection-in-depth response list, providing complete methodological support for precise proactive protection in multi-level collaborative attack scenarios.

The invention relates to the technical field of ferrous metallurgy control, in particular to a tundish car anti-collision control device and method based on safety interlocking. The device comprises a walking position detection unit, a lifting position detection unit, a rotary table position detection unit and a programmable logic controller. The intrinsically safe active protection system is constructed, the core function of the intrinsically safe active protection system is to rigidly associate the dynamic position relation between the tundish car and the ladle turret, and when it is detected that a turret arm does not reach the safe height or the tundish car attempts to drive to a casting position when the tundish car does not rise to the safe height and other dangerous working conditions are detected, the tundish car is protected; the controller immediately outputs a hard wire interlocking signal to physically cut off an enabling loop of the walking driving mechanism, so that equipment collision accidents caused by manual misoperation or system failure are completely eradicated on the hardware level, and the automation level and the operation reliability of continuous casting production are greatly improved.

The cover-free fan active protection method comprises the steps that a DTOF sensor is fixedly arranged on a fan body, target distance information is collected in real time through the DTOF sensor, and the target speed is calculated when the target distance is smaller than or equal to the boundary distance; the controller receives target distance information through the DTOF sensor and generates a grade protection instruction for active protection; and the controller evaluates the target distance information according to the preset grade exit condition, and when the target distance information is matched with the preset grade exit condition, the fan is controlled to execute the pre-protection state. System-level non-contact safety protection of the cover-free fan is achieved, the protection safety distance can be adjusted, and double-channel parallel detection is achieved.

The utility model relates to the technical field of airspeed tube protection, in particular to an active protection device for preventing mistaken heating of an airspeed tube, which comprises an atmosphere data measurement and control instrument, an airspeed tube airtight clamp, a heat-sensitive sensor arranged on the airspeed tube airtight clamp, and a quick-release cable plug connected with the heat-sensitive sensor, the airspeed tube airtight clamp is provided with a charging connector I and a charging connector II which are connected with the atmosphere data measurement and control instrument, and the quick-release cable plug is connected with the atmosphere data measurement and control instrument through an adapter cable. The device has the characteristics of convenience in use, simplicity in operation, suitability for field operators and the like; the temperature of the contact surface of the airspeed tube and the airtight clamp is detected, and at the initial stage of false heating of the airspeed tube, the deflation module of the atmosphere data measurement and control instrument is started in time, the airspeed value is rapidly reduced, and the automatic heating condition of the airspeed tube is eliminated, so that the intrinsic safety of the airspeed tube and the airtight clamp in the using process is realized.

The invention provides an active protection method and device for impulse noise and a protection earmuff, and the method comprises the steps: collecting a first external sound pressure at a current moment through the protection earmuff under the condition that the protection earmuff employs a transparent mode to carry out the enhanced playback of external sound, and predicting a target sound pressure at a target moment based on the first external sound pressure; wherein the target moment is behind the current moment, and the interval duration between the target moment and the current moment is determined based on the activation starting time of the noise reduction mode; if it is determined that pulse noise exists at the target moment based on the target sound pressure, the transparent mode is switched into a noise reduction mode, and the mode switching time is activation starting time; and controlling the protective earmuffs to offset the external sound in a noise reduction mode. According to the technical scheme of the invention, active protection can be carried out in advance, and mode switching can be completed in advance, so that a high-real-time protection effect can be achieved.

The application discloses a high-power charging pile thermal runaway monitoring method and a protection system thereof, relates to the technical field of high-power energy supplementing infrastructure for new energy vehicles and extreme thermal physical safety control, and aims to solve the technical defects of lagging thermal runaway monitoring and passive protection of the existing high-power charging pile. The monitoring method discloses the single dependence on the terminal temperature lagging representation, constructs an early microcosmic evolution detection system of multi-physical field coupling, realizes early and accurate identification of thermal runaway precursors through the synergistic detection of three dimensions of electrical frequency domain micro stress detection, cooling medium micro boiling acoustic detection and interface escaping gas concentration feedforward detection, and combines multi-dimensional state fusion threshold determination. The protection system corresponds to the above monitoring method, is composed of a hybrid type ultra-fast breaking module, an active phase change flooding fire extinguishing module, a gun end forced separation module and a comprehensive decision-making master control hub, and realizes graded active protection in different stages of thermal runaway.

This invention discloses a protective device for the feed inlet of a transfer conveyor, relating to the field of coal mining equipment technology. It includes a protective chain comprising a horizontal chain and a vertical chain. The horizontal chain connects the transfer conveyor and the head of the feed inlet conveyor. The upper end of the vertical chain is fixedly connected to the upper sealing plate of the feed inlet of the transfer conveyor, and the lower end hangs down. An emergency stop device includes a hanging chain and an emergency stop switch. The hanging chain hangs over the feed inlet of the transfer conveyor, and pulling down the hanging chain activates the emergency stop switch. An active protection device includes a sensor capable of detecting personnel entering a preset danger zone and issuing a detection signal. The detection signal is used to control an alarm device to issue an alarm and / or to control the transfer conveyor to stop. The protective chain, emergency stop device, and active protection device form multiple safety redundancies of active early warning, physical protection, and accident self-rescue, significantly reducing the risk of personnel injury or death due to the failure of a single protection method and improving personnel safety during operation.

The present application relates to offshore wind power safety monitoring technology, and specifically discloses a wind turbine tower and blade adaptive protection system and method based on visual monitoring. The present application dynamically constructs a horizontal reference resistant to wave interference through an onboard high-definition camera capturing sea surface flare, and fuses tower edge recognition to calculate the inclination in real time. When the inclination continuously exceeds the limit, the blade is segmented to contract to reduce wind load, and the inclination change rate after contraction is used to distinguish between elastic deformation and structural failure. For the case where the inclination does not change, a coaxial laser scanning device is started to excite local vibration of the tower, and the loosening point is located by analyzing the time delay of vibration wave conduction. The present application can realize millimeter-level precision monitoring of tower inclination; the active protection mechanism of the blade reduces the risk of accidents; improves the precision of non-contact fault location, and reduces the diving maintenance operation. It is mainly suitable for structural health monitoring and safety protection of large offshore wind turbine generators.

The invention provides a vehicle active protection alarm system based on thundersight detection, and belongs to the technical field of near-electricity operation, the vehicle active protection alarm system based on thundersight detection comprises a bottom table, a first lifting mechanism, a detection head and an audible and visual alarm, the bottom table comprises a shell, and a power supply, a host and a router which are arranged in the shell, the router is connected with the host through a network cable; the first lifting mechanism is arranged at the top of the bottom table, and the first lifting mechanism is provided with a fixed seat capable of moving up and down; the detection head is rotatably connected to the fixed seat along a first axial direction, the first axial direction is perpendicular to the vertical direction, the detection head is provided with a camera and two laser radars, the two laser radars are located at two opposite sides of the camera, and the camera and the laser radars are both in communication connection with the router; and the audible and visual alarm is arranged at the top of the detection head and is connected with a serial port on the host.

The application discloses an air-based intercepting aircraft with a seeker installed at the rear of the flight direction, comprising four cabin sections of a leading-war cabin, a control cabin, a rudder cabin and a guiding cabin; the seeker, a guidance controller, a navigation device, a thermal battery, a rudder, a combat unit and a proximity fuze are installed in the cabin sections; the leading-war cabin, the control cabin, the rudder cabin and the guiding cabin are sequentially connected to form the cabin body structure of the air-based intercepting aircraft; the combat unit and the proximity fuze are installed in the leading-war cabin and are independent cabins; the guidance controller, the navigation device and the thermal battery are installed in the control cabin; the rudder is installed in the rudder cabin and is an independent cabin; and the seeker is installed in the guiding cabin and is an independent cabin. The air-based intercepting aircraft has the active killing capacity, can be used for intercepting the rear attacking target of an airplane, realizes the active protection of the airplane platform and effectively protects the airplane.

The invention relates to a construction site safety risk identification method and device, equipment and a medium. The method comprises the following steps: deploying a multi-modal sensor network to synchronously collect personnel movement, position and environment data, constructing a dynamic digital twinborn body which accurately reflects the whole body posture of a person and the surrounding environment through spatial registration fusion, and further extracting multi-dimensional risk characteristics, such as kinematics, posture stability and environment interaction, representing instability precursor from the dynamic digital twinborn body in real time; according to the method, the AI risk assessment model is input for predictive calculation, and finally, when the critical risk is identified, the falling track is actively predicted and an accurate intervention instruction is generated, so that the fundamental transformation of the high-altitude falling risk from post-event alarm to pre-event prediction and early warning is realized, the accuracy and timeliness of risk identification are remarkably improved, and the risk identification efficiency is improved. A key decision basis is provided for starting an active protection system, and the safety protection capability of high-altitude operation is effectively enhanced.