107 results about "'Active' protection" patented technology

The invention discloses a security threat-oriented unmanned aerial vehicle active protection method and system for a power system, and the method comprises the following steps: S1, collecting data through active patrol and a plurality of sensors by a defense unmanned aerial vehicle, and carrying out the detection of a surrounding environment through AI recognition; and S2, after the target is detected, the defense unmanned aerial vehicle performs intelligent behavior analysis on the detected unmanned aerial vehicle, and judges whether the unmanned aerial vehicle is a real security threat or not. According to the method, collaborative detection of multiple sensors is combined with AI recognition, the threat flyer can be effectively recognized, the false alarm rate is reduced, the detection accuracy is improved, in addition, intelligent behavior analysis is combined, the threat level is effectively evaluated, the risk of false alarm and misjudgment is reduced, automatic interception is conducted according to the evaluation result, manual intervention is not needed, and the risk of risk of threat detection is reduced. The safety protection effect is improved, and the power system safety is effectively guaranteed.

The invention relates to an active and passive integrated protection method and system for hydrogen safety in a confined space, and the protection method specifically comprises the steps: building an equal ratio test model and a simulation model of a hydrogen utilization system in the confined space, and carrying out the numerical simulation analysis; carrying out limited space hazard source identification, determining installation positions of a limited space hydrogen leakage collection device and a hydrogen concentration sensor, and formulating a hydrogen micro-leakage criterion combining a hydrogen concentration change rate, a hydrogen concentration break variable and a hydrogen concentration threshold value; and determining an arrangement scheme of a limited space exhaust system and an explosion pressure relief system. The protection system comprises an active protection device and a passive protection device. Compared with the prior art, the method has the advantages that the accuracy of the simulation model is verified, the simulation model is continuously optimized and adjusted until the accuracy meets the requirement, and the obtained result is more reliable and is more consistent with the actual situation. The hydrogen safety active and passive integrated protection device provided by the invention has early warning and protection functions, and comprehensively and efficiently realizes prevention and control of system hydrogen safety.

The utility model discloses a bridge ship collision prevention active protection device which comprises a laser range finder, a control assembly, a main bridge pier, a main bridge bearing platform, a separation type ship collision prevention facility structure, a polyurethane foam rotary drum and a riverbed, the laser range finder and the control assembly are arranged on the upper portion of the main bridge pier, and the main bridge bearing platform is arranged at the bottom of the main bridge pier. A plurality of separated ship collision prevention facility structures are arranged on the periphery of the main bridge bearing platform on the main bridge piers, polyurethane foam rotating cylinders are arranged on the separated ship collision prevention facility structures, and the other ends, away from the polyurethane foam rotating cylinders, of the separated ship collision prevention facility structures are used for being buried in a riverbed to be fixed. When the distance between the ship and the main bridge pier is detected to be smaller than a certain range through the optical distance measuring instrument, the control assembly controls the gas generator to inflate the gas bag to generate buoyancy, the polyurethane foam rotating drum is pulled to the water surface through the buoyancy to make contact with the ship, and the situation that the ship collides with the main bridge pier and consequently the main bridge pier is damaged is prevented.

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 relates to the technical field of active protection systems of hydraulic servo systems, and discloses an active protection system of a hydraulic servo system, which comprises an overload protection module, a temperature control module, a leakage monitoring module, a vibration suppression module, a redundancy design module and an intelligent control module, the overload protection module comprises a pressure sensor and a servo valve current limiting structure, the temperature control module comprises an oil temperature sensor and a self-adaptive cooling system, the leakage monitoring module comprises a flow meter and a pressure attenuation monitoring unit, and the vibration suppression module comprises an acceleration sensor and an active damping servo valve. The redundancy design module comprises a double-servo-valve parallel structure and double hydraulic pump sets. The intelligent control module comprises a fault diagnosis unit and a dynamic parameter compensation unit. Through the system, a multi-dimensional active protection system can be formed, and the safety, reliability and stability of the hydraulic servo system are improved.

The invention discloses a building high-altitude falling object identification and active protection system and a use method, and relates to the technical field of building high-altitude falling object prevention, and the system comprises an acquisition module, a high-altitude falling object detection and identification module, a high-altitude falling object protection module, a warning system and an edge computing device. The acquisition module is used for monitoring a high-altitude environment outside a building; the multi-source data collected in real time is transmitted to the high-altitude falling object detection and recognition module, and the high-altitude falling object detection and recognition module judges whether a high-altitude falling object occurs or not according to signals in the multi-source data; and when the falling object is confirmed to be the high-altitude falling object, an alarm is given to a warning system in the falling area, and meanwhile, the high-altitude falling object protection module is triggered to actively intercept the high-altitude falling object. According to the method, the effect of dynamically adjusting the high-altitude anti-falling strategy is achieved through the spatial-temporal feature fusion technology; the large-scale deployment of the building can be realized based on the edge computing equipment, and the danger of falling objects from high altitudes is prevented.

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 an intelligent safety protection system for ship construction. The intelligent safety protection system comprises wearable intelligent safety detection equipment, an operation environment detection and personnel management and control system, an AI perception prediction and judgment module and a safety production detection integrated platform, wherein multi-source data acquired by the wearable intelligent safety detection equipment and operation environment detection and personnel management and control system are input into the AI perception prediction and judgment module; the AI perception prediction and judgment module generates a risk type and a risk level through cross-modal analysis; the safety production and detection integrated platform is responsible for transmission and interaction of multi-source data and generates a decision signal of an equipment control instruction according to the risk type and the risk level; driving an operation environment detection and personnel management and control system to dynamically adjust a safety protection area; an active protection instruction is sent to the wearable intelligent safety detection equipment; according to the intelligent safety protection system for ship construction, the risk can be intelligently predicted, protection can be dynamically adjusted, and the ship construction safety is improved.

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 application applies to the field of fault detection technology and provides a method and device for active defense detection of live power in substation main equipment. The method comprises: acquiring a partial discharge signal from the substation main equipment; obtaining a correlation between the partial discharge signal and historical partial discharge signals; wherein the correlation indicates the degree of correlation between the partial discharge signal and the historical partial discharge signal and a predetermined fault, and at least two synchronously collected signals from the partial discharge signal participate in determining the correlation; and obtaining a detection result based on the correlation. This method solves the problem of low fault identification rate in the prior art method of using single data for analysis, improves the fault identification rate, provides strong support for active defense of substation main equipment, and further extends the service life of the equipment.

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 present invention relates to the technical field of relay protection of power systems, and provides a protection action method and system for preventing abnormal AC circuits, wherein the method comprises: a relay protection device samples the AC circuit at a fixed sampling frequency, and records the instantaneous sampling value of each sampling point into a sampling array; calculates a protection action fixed value conversion value; based on the sampling array, performs a two-point differential calculation on the instantaneous sampling value of the sampling point to obtain a differential array of the sampling point difference; performs a square calculation on the differential array to obtain a first sampling point cache array; calculates the square of the sampling point difference of two sampling points, and sums the obtained two square values ​​to obtain a second sampling point cache array; converts the protection action time fixed value into the number of sampling points; performs a protection action logic judgment on each sampling point based on the second sampling point cache array, the protection action fixed value conversion value and the number of sampling points, and executes the protection action according to the judgment result. The present invention can avoid protection misoperation without affecting the protection speed.

The invention belongs to the technical field of defense weapons, and discloses a low incidental damage device for an active protection system.The low incidental damage device comprises a warhead part and a detonating mechanism, the device is installed around a chariot, and the warhead part mainly comprises a non-metal shell, a long rod-spherical segment shaped charge liner and a grain; the long rod-spherical segment shaped charge cover is formed by pressing heavy metal particles, oxidizing agent particles, aluminum powder and fluororubber, a closed nonmetal shell is filled with the grain, the detonating mechanism is connected with a sensing detection system of a chariot, and information of a close-range incoming missile is obtained through the sensing detection system. After the device obtains the information, the detonating mechanism detonates the warhead in good time to intercept the close-range incoming missile, and the detonated warhead effectively intercept the missile and meanwhile causes low-incidental damage to personnel and equipment of the own side or causes no incidental damage to the personnel and the equipment of the own side; the problems that in the prior art, a chariot cannot effectively intercept a short-distance missile, and after interception, short-distance infantries can be killed are solved, and the chariot is suitable for armored vehicles.

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.

This application discloses an alarm device and alarm method for a collision avoidance vehicle. The alarm device includes a collision avoidance vehicle body, a collision avoidance buffer device, a first-level warning device, a second-level warning device, and a third-level warning device. The first-level warning device includes a radar mechanism and an audible warning mechanism. The second-level warning device includes a warning support frame, a pressure sensor, a flashing warning mechanism, and a vibration warning mechanism. The third-level warning device includes an impact sensor and a buffer folding support mechanism. In the alarm method, the radar mechanism is used to trigger the audible warning mechanism to provide an audible alert. The pressure sensor is used to trigger the flashing warning mechanism to emit a strong flashing light warning, and simultaneously triggers the vibration warning mechanism to emit a mechanical vibration alert. The impact sensor is used to trigger the buffer folding support mechanism to unfold to enhance the structural strength of the collision avoidance buffer device, forming a three-level active protection system. This achieves a dynamic response of "long-distance warning - contact warning - collision buffer," improving the timeliness and stability of the warning.

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 particularly relates to an active protection type unloading platform, and belongs to the technical field of conveying equipment. The active protection type unloading platform comprises a bottom plate, the bottom plate comprises two oppositely arranged baffle plates, the baffle plates are provided with protection assemblies, the protection assemblies comprise a deformation chain, a driving component and a jacking component. The deformation chain comprises a plurality of sequentially connected protection units, the driving component comprises a moving part, a limiting part and a first elastic member, the moving part is movably connected to the baffle plate along the length direction of the baffle plate, the first elastic member connects the moving part and the limiting part, the limiting part is movably connected to the baffle plate, the limiting part abuts against the moving part, one end of the deformation chain is rotationally connected to the baffle plate, the other end is rotationally connected to the moving part, and the jacking component is arranged on the baffle plate. The deformation chain and the baffle plate cooperate to increase the shielding area, so that the deformation chain can play a protection role and the risk of material or personnel falling from the bottom plate is reduced.

Unified tank turret module with an active protection system

The present invention provides a method for active protection of unmanned aerial vehicles against security threats, which belongs to the field of unmanned aerial vehicle defense, and includes: real-time collection of network flow data of the network security domain of unmanned aerial vehicles; converting the data in the descriptive field and the proportional field in the network flow data into structured data, and extracting data features of the statistical field and the descriptive field and the proportional field after the data structure is converted, obtaining the feature vector of each field, combining and fusing the features of each feature vector, and generating a security threat log containing the threat type according to the combined feature vector and the feature fusion result; formulating a security strategy according to the threat type, and the unmanned aerial vehicle system actively protecting against security threats according to the security strategy. The method does not rely on thresholds and rules, does not need to frequently update and improve the defense strategy, can reduce the resource consumption of the system under the premise of ensuring safety, improve the endurance and performance of the unmanned aerial vehicle, and improve the security of the entire unmanned aerial vehicle network.

The invention provides a dangerous rock collapse geological disaster protection early warning system, and relates to the technical field of geological disaster prevention and control, the dangerous rock collapse geological disaster protection early warning system comprises a fixed frame, a linkage connection assembly and an early warning assembly, the fixed frame is fixed on a slope through an anchor rod, the linkage connection assembly is slidably arranged on the fixed frame, and the early warning assembly is arranged on the linkage connection assembly. The linkage connection assembly is connected with the slope active protection net and used for driving the early warning assembly to send out an early warning signal, the system is arranged on a slope through the fixing frame, the linkage connection assembly transmits deformation of the protection net to the early warning assembly, the early warning assembly triggers the early warning signal, and early warning is conducted on slope dangerous rock collapse geological disasters. The system is simple in structure and high in stability, and solves the problem of high popularization cost of a monitoring and early warning technology based on a clinometer, a GNSS and other automatic equipment.

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.