28results about How to "Address security risks" patented technology

The invention relates to the technical field of code peculiar smell detection and reconstruction recommendation systems, in particular to an incremental code peculiar smell detection and reconstruction recommendation system and a method thereof.The incremental code peculiar smell detection and reconstruction recommendation system comprises a code extraction and static analysis module used for extracting a to-be-analyzed code snippet from a target project and preprocessing the code snippet to form a to-be-analyzed file; the runtime information acquisition and dynamic analysis module is used for operating the file to be analyzed in the sandbox environment, acquiring and summarizing runtime information and forming a dynamic analysis report; the learning module is used for receiving a static analysis result and a dynamic analysis report, comprehensively considering static information and an incremental model updating report, constructing vector representation of code potential features and updating an incremental learning model; and the reconstruction recommendation module is used for scoring each code snippet based on the code feature vector and an incremental learning model, recommending a corresponding reconstruction rule, and providing a more accurate peculiar smell detection result by fusing static code features and dynamic operation information.

The invention discloses a method for analyzing fluctuating wind pressure load of a wind tunnel structure based on linear regression. The method comprises the steps that fluctuating wind pressure data are obtained, the fluctuating wind pressure data comprise wind speed, peak frequency and fluctuating wind pressure, the peak frequency comprises upstream peak frequency and downstream peak frequency, and the fluctuating wind pressure comprises upstream pulsation and downstream pulsation; eliminating the fluctuating wind pressure data with error influence according to the variable coefficient and the F statistical magnitude to obtain optimized fluctuating wind pressure data; acquiring fluctuating wind pressure parameters according to the optimized fluctuating wind pressure data; obtaining a load analysis formula according to the fluctuating wind pressure parameters, wherein the load analysis formula comprises a fluctuating frequency function and a fluctuating wind pressure function; vibration loads are obtained according to the load analysis formula, the vibration loads comprise the frequency load and the wind pressure load, and the problem that in the prior art, large wind tunnel laboratory facility structure design is prone to generating a resonance phenomenon, and consequently safety risks exist in the structure is solved.

The invention provides a business process intelligent configuration and security execution method, system and device, and the method comprises the steps: converting a natural language demand into a BPMN 2.0 process model based on a large language model and an enterprise knowledge base; the service rule description is converted into a Grouping script through multi-level security compiling; the process and the script are executed in the Flowable process engine integrated with the security sandbox, and execution data are collected; and calculating a process health score based on the data, generating and implementing an optimization suggestion, and feeding back a result to the knowledge base. The problems that a traditional process system depends on manual coding, the script safety is poor, and continuous optimization is lacked can be solved. The full-link automation and intelligentization of the business process from design, execution to optimization can be realized, the development efficiency and the system security are greatly improved, and the process has the self-evolution capability through closed-loop feedback.

The invention provides a single sign-on method and device, electronic equipment and a readable storage medium, and is applied to authentication equipment, the method comprises the following steps: when an application program in terminal equipment is opened, obtaining a target user identifier sent by the application program; obtaining a target authentication result corresponding to the target user identifier from a pre-stored corresponding relationship between the user identifier and the authentication result; and feeding back the target authentication result to the application program, so that the application program determines the permission of logging in the application program according to the target authentication result. According to the application, single sign-on can be realized on the premise of ensuring the security of the user identity information.

The utility model discloses a compressor lubricating oil filling system which comprises a filling pump which is respectively connected with a first storage tank and a second storage tank through pipelines, and nitrogen pipelines are arranged on the first storage tank and the second storage tank. The pressure reducing part is mounted on the nitrogen pipeline and is used for adjusting the pressure in the first storage tank and the second storage tank; the lubricating oil tank is connected with the first storage tank and the second storage tank through a conveying pipeline, a ball valve and a liquid level transmitter are arranged on the conveying pipeline, and the lubricating oil tank is used for conveying lubricating oil to the compressor. And the controller is electrically connected with the pressure reducing piece, the ball valve and the liquid level transmitter. Lubricating oil in the first storage tank and the second storage tank can be conveyed into the lubricating oil tank only by controlling the pressure reducing part through the controller, and finally the lubricating oil is filled into the compressor through the lubricating oil tank, so that the safety risk and the environmental protection risk caused by manual cooperative operation in the traditional filling technology are avoided; and secondly, by means of the system, the traditional filling operation steps are simplified, and the filling efficiency is improved.

This utility model relates to the technical field of fluid loading and unloading equipment, and discloses an electric vertical pipe for submerged loading of trains, including a wire retractor, a liquid inlet, an outer sleeve, a middle sleeve, an inner sleeve, and a train sealing cap; the outer sleeve, middle sleeve, and inner sleeve constitute a fluid channel from the liquid inlet to the liquid outlet at the end of the inner sleeve; the wire retractor is connected to the inner sleeve via a wire rope; by driving the extension and retraction of the middle and inner sleeves through the wire retractor, the lateral liquid outlet of the inner sleeve can be automatically and accurately delivered below the liquid surface inside the train tank car, avoiding the risks and inefficiencies of manual operation and realizing automated submerged loading; the nested extension and retraction structure of the three sleeves (outer, middle, and inner) allows the equipment to retract when not in operation, occupying little space; when in operation, it can extend to the interior of the tank car at different depths, with strong adaptability; it solves the problems of low efficiency and safety risks in manual loading of vertical pipes.

The present application relates to the technical field of knife switch monitoring, and specifically provides a knife switch state automatic monitoring method and device, and a computer-readable storage medium, the method comprising: obtaining the parsed knife switch state data of the substation; performing an analysis operation on the data in the intermediate state in the parsed knife switch state data to obtain an analysis result, and automatically monitoring the knife switch state according to the analysis result, the analysis operation comprising a full station listing analysis, a direct switch listing analysis, a grounding knife switch associated main transformer listing analysis, a sectional knife switch analysis, and a direct bus listing analysis, the intermediate state being the knife switch state except for the fully disconnected state and the fully closed state. The method solves the problem in the prior art that the intermediate state of the knife switch is ignored, resulting in a safety risk caused by the intermediate state.

The application relates to the technical field of mine mechanical equipment, and provides an underground multifunctional carrier vehicle, which comprises a main vehicle frame, a directional caster wheel arranged at the front end of the main vehicle frame, a rotary connecting rod, one end of the rotary connecting rod being rotationally connected with the main vehicle frame, a split vehicle frame, the split vehicle frame being connected with the other end of the rotary connecting rod, and a universal caster wheel arranged at the connecting end of the split vehicle frame and the rotary connecting rod. In a first mode of the split vehicle frame, the split vehicle frame is rotated and folded around the rotary connecting rod, the split vehicle frame and the main vehicle frame are parallel and superimposed, the universal caster wheel is lifted and suspended and is accommodated in the inner side of the directional caster wheel, and the directional caster wheel independently supports the main vehicle frame. In a second mode of the split vehicle frame, the split vehicle frame is rotated and unfolded around the rotary connecting rod, the split vehicle frame and the main vehicle frame form a preset included angle, the universal caster wheel falls and supports the main vehicle frame together with the directional caster wheel. Through the rotary deformation structure between the main vehicle frame and the split vehicle frame, function integration and conversion are realized.

The invention discloses a mobile self-adaptive charging control and thermal control method and system, and belongs to the technical field of thermoelectric control systems.The method comprises the steps that a charging state sensing matrix is constructed by collecting multi-dimensional data such as electric quantity, battery health, environment temperature and load in real time; a neural network model fusing a space-time attention mechanism and a bidirectional LSTM is adopted to accurately identify a charging demand, and a dynamic strategy library is matched to generate an initial charging parameter; in the charging process, the state of a loop is monitored through double-end synchronous sampling larger than 1 kHz, the current and voltage are dynamically optimized in combination with a battery equivalent circuit model of the self-adaptive order, and efficient power matching and ripple suppression are achieved. And when it is detected that the temperature is abnormal, a multi-mode thermal management mechanism is triggered, and a charging-calculation-heat dissipation cooperative control closed loop is formed. The system also supports security OTA strategy updating based on federated learning and differential privacy; according to the invention, the charging efficiency, the safety and the service life of the battery are remarkably improved, and the environment adaptability in a complex mobile scene is enhanced.

The utility model discloses a railway substation high-voltage cabinet moving anti-falling device, and belongs to the technical field of high-voltage cabinet installation auxiliary tools. Comprising a supporting frame capable of being adjusted in a telescopic mode, the supporting frame comprises a U-shaped first supporting plate and a second supporting plate inserted into a U-shaped opening of the first supporting plate in a sliding mode, the first supporting plate and the second supporting plate are detachable, and lapping plates are fixed to the two ends of the first supporting plate and the two ends of the second supporting plate correspondingly. The first supporting plate is symmetrically provided with liftable first bull eye ball universal ball seats, the second supporting plate is provided with liftable second bull eye ball universal ball seats, and the technical effect of solving the problems of safety risks and construction efficiency in the moving and adjusting process of the high-voltage cabinet is achieved.

This invention discloses a control system for an automated live-line working equipment manipulator, comprising: a manipulator body and control components; the manipulator body includes: a first ring-holding cylinder, a second ring-holding cylinder, a first clamping cylinder, and a second clamping cylinder; the first and second ring-holding cylinders are used to connect a pair of ring-holding manipulators, and the first and second clamping cylinders are used to connect a pair of clamping manipulators; the control components include: a first three-position four-way explosion-proof solenoid valve, a second two-position three-way explosion-proof solenoid valve, a second three-position four-way explosion-proof solenoid valve, a first balance valve, a first accumulator, a third three-position four-way explosion-proof solenoid valve, a second balance valve, and a second accumulator. This invention enables the automatic grabbing, conveying, and wellhead centering of the working tubing under unmanned operation conditions at the wellhead, solving the safety risks associated with traditional live-line working equipment requiring operators to be concentrated above the wellhead, effectively improving the equipment's operational efficiency and inherent safety.

This invention relates to the field of biogas purification technology, specifically to a biological biogas desulfurization and decarbonization method coupled with green algae photosynthetic oxygen production, comprising the following steps: S1: Raw material gas pretreatment: Crude biogas is sequentially subjected to dust removal and pressurization to obtain pretreated gas; S2: Green algae cultivation and bioreaction system construction: The green algae cultivation system is started to prepare green algae culture medium, and green algae produce oxygen through photosynthesis; A composite culture medium is added to the biological desulfurization tank and a mixed bacterial agent is introduced to construct a desulfurization reaction system; S3: Simultaneous desulfurization and decarbonization reaction: The oxygen produced by the green algae cultivation system is transported to the biological desulfurization tank in a closed loop; This invention is the first to construct a four-phase closed-loop circulation system of bacteria-algae-gas-liquid at the engineering level, which dedicates the green algae photosynthetic oxygen production to desulfurization and oxygen supply, fundamentally solving the safety and explosion risks caused by the mixing of oxygen into purified biogas in existing microalgae-based biogas purification technologies.

The utility model belongs to the field of puncher, specifically is a license fixed seal device is with puncher, including bottom plate, the top side of bottom plate is equipped with mounting panel, the top of mounting panel is equipped with first electric push rod, the output of first electric push rod is equipped with push plate, the top middle part of bottom plate is equipped with rectangular block, the top of rectangular block is equipped with placing groove, push plate corresponds with placing groove, the other side of bottom plate is equipped with processing platform, the top of processing platform is equipped with processing groove, one end of processing groove is equipped with limit mechanism, one side of processing platform is equipped with guide plate. The utility model discloses through setting up rectangular block, and setting up placing groove, can place workpiece in placing groove, then through first electric push rod drive push plate and push workpiece in placing groove to processing groove, the workpiece that processes good in processing groove is ejected, thereby need not through manual take the workpiece that processes good, solved the problem that can produce certain safety risk to staff, improved the efficiency of production.

The utility model belongs to the technical field of electrolytic aluminum production, and relates to a movable split type optical auxiliary positioning device for anode replacement operation in aluminum electrolysis production. The device comprises an optical positioning device and an anode scrap bottom height positioning device arranged below the optical positioning device, the optical positioning device comprises an upper sliding rail and an upper sliding block; the upper slide block is matched with the upper slide rail; a laser transmitter is fixedly arranged on the upper sliding block; the anode scrap bottom height positioning device comprises a movable base, a lower sliding rail, a right-angle caliper and a right-angle caliper height adjusting mechanism. According to the utility model, the problems of safety risk and large positioning error in the process of positioning the height of the marking line on the anode scrap guide rod can be effectively solved, and the precision of the loading height of a new anode is improved on the premise of ensuring the safety.

The utility model discloses a combined type multi-layer conveying device which comprises a horizontal transverse rail, a horizontal vertical rail, a first pulley assembly, a second pulley assembly, a platform, a sliding rail, a frame and a supporting rod. The two horizontal transverse rails are arranged in parallel, the top ends of the horizontal transverse rails are slidably connected with two horizontal vertical rails which are arranged in parallel through first pulley assemblies, and the horizontal vertical rails are perpendicular to the horizontal transverse rails; the top ends of the horizontal and vertical rails are slidably connected with a platform through second pulley assemblies, a set of sliding rails are vertically fixed to the end face of the top end of the platform, a frame is slidably arranged between the sliding rails, and multiple sets of horizontally-arranged supporting rods are fixed to the outer wall of one side of the frame in the length direction of the frame. The platform has the advantages that under the action of the horizontal transverse track, the horizontal vertical track, the first pulley assembly and the second pulley assembly, the platform can move in multiple directions, and the silicon carbide fire-resistant tank can be conveniently taken out of a drying kiln and transferred into a cooling area.

The utility model relates to a protection device, belongs to the technical field of refrigerator manufacturing, and particularly relates to a power-off protection device for shaping a sealing strip of a refrigerator door body, which comprises a base, a control assembly and a heating assembly, the control assembly comprises a control box fixedly connected to one end of the peripheral wall of the supporting frame, a control mechanism and a power-off protection mechanism are arranged in the control box, the heating assembly comprises a supporting mechanism and a heating mechanism which are arranged at one end of the supporting frame, and the control mechanism comprises a power socket installed on one side of the outer wall of the control box; the effect of effectively improving the safety of the device is achieved, the sensor is arranged to sense the distance between the hot air gun head and the gun rack, then a signal is transmitted to the industrial controller, the industrial controller controls the on-off of an internal circuit of the device, the safety and the energy-saving effect of the device are improved, and the safety of the device is improved. The problem that certain safety risks are generated due to the fact that an existing start-stop switch is mistakenly touched is solved.

The embodiment of the invention provides a connection method and device of household equipment, electronic equipment and a medium, and the method comprises the steps that when a control device detects that the distance between the control device and the household equipment is smaller than a preset threshold value, bidirectional authentication processing is carried out between the control device and the household equipment; after the bidirectional authentication is passed, network distribution information is sent to the home equipment, so that the home equipment accesses a network access point connected with the control equipment based on the network distribution information; and determining second detection information, and connecting with the control equipment under the condition that the second detection information is matched with the first detection information. According to the embodiment of the invention, the security of the network distribution process is ensured through close-range triggering and bidirectional authentication, the directional transmission of the network distribution information is realized through network access point connection, the leakage of the network distribution information in an open environment is avoided, the identity of the home equipment can be verified by comparing the consistency of the first detection information and the second detection information, and the security of the home equipment is improved. Information tampering or man-in-the-middle attack is prevented, and the problem that in the prior art, security risks exist in the distribution network process is effectively solved.

The utility model belongs to medical bed accessory technical field discloses a good protective medical bed electric push rod, including mounting seat, fixedly connected on the main rod of mounting seat and the extension rod of sliding connection on the main rod, the motor is slidably connected on the mounting seat, the handle is rotatably connected on the mounting seat, the drive assembly, clutch assembly and switching assembly are fixedly connected in the mounting seat, drive assembly is used for through motor or handle drive the extension rod relative to the main rod extension, clutch assembly is used for through control motor and drive assembly's separation and close to realize electric push rod's electric operation and manual operation's switching of switching, the utility model discloses the quick switching structure of built -in clutch assembly, can switch to manual operation mode in time when motor power failure or trouble, ensure the timely adjustment of medical bed height and angle under the emergency, solved the problem that electric push rod exists security risk under the power -off scene.

The utility model belongs to the technical field of transporting axles, and particularly relates to a 115T axle half shaft assembly and a machining tool, the 115T axle half shaft assembly comprises a rim and a tire assembled on the rim, a half shaft is rotatably installed in a shaft sleeve of the rim, and the half shaft comprises a half shaft body, an axle end and a connecting end; the connecting end comprises a connecting plate and a reinforcing rib, the connecting plate is arranged at the end of the half shaft body, the reinforcing rib is connected with the connecting plate and the half shaft body, a plurality of connecting bolts are arranged on the connecting plate, and an anti-shearing mechanism is further arranged on the connecting plate; the anti-shearing mechanism comprises a circular truncated cone arranged in the middle of the connecting plate, and the diameter of the circular truncated cone is 1 / 3 of the length of the connecting plate. Due to the arrangement of the circular truncated cone, positioning and butt joint of the half shaft and the moving axle can be facilitated, a good anti-shearing effect is achieved after connection, the diameter of the circular truncated cone is 1 / 3 of the length of the connecting plate, the connecting strength of the 115T moving axle is met, and the service life of the connecting plate is prolonged. The problem that safety risks exist in a traditional connecting structure of a half shaft assembly and a transfer axle which are connected independently through bolts is solved.

The present invention discloses an intelligent management device for hand-cranked tools of a switch machine, comprising a bottom plate; a base is provided at the top left end of the bottom plate; a static contact frame is provided at the rear side of the base; a static contact group is provided at the top of the static contact frame; a moving contact frame is provided at intervals above the top front side of the base; a moving contact group is provided at the top of the moving contact frame; the base vertical plates on the left and right sides of the top of the base are connected to the left and right vertical plates of the moving contact frame through a linkage shaft; the bottom plate is provided with an upper end cover and a lower end cover on the left and right sides of the base; the lower left and right sides of the lower end cover are respectively connected to the right side of the identification sleeve and the left side of the guide tube; the hand crank passes through the guide tube and the identification sleeve horizontally from right to left, and is plugged into the linkage shaft. The present invention can be used as a daily storage box for hand-cranked tools of a switch machine, which is convenient for management. After the hand crank is manually taken out, the circuit will be automatically cut off, which can further improve the safety of manual switch switching.

The invention provides a construction method for an unbalanced beam section of a continuous beam, and belongs to the field of building construction. According to the technical scheme, the construction method comprises the following steps that S1, firstly, balance weight construction is conducted on an unbalanced beam section of the continuous beam, and a jack is adopted to conduct tensioning balance weight on a previous side span beam section before pouring; and S2, concrete pouring construction is conducted, and the tensioning balance weight value of the jack is adjusted according to the concrete pouring amount in the pouring process. The method has the beneficial effects that the method is suitable for a balance mode under different construction working condition loads, and safety risks and potential quality hazards existing in a traditional unbalanced continuous beam balance weight mode are avoided.

The invention relates to the technical field of waste mineral oil treatment, in particular to a waste lubricating oil regeneration hydrogenation reactor which comprises a tank body, and a monitoring mechanism and a controller are arranged in the tank body; the monitoring mechanism comprises a pressure gauge for monitoring the pressure change in the tank body, an oxygen content sensor for monitoring the oxygen content in the tank body, a hydrogen content sensor I for monitoring the hydrogen content in the tank body and a temperature sensor for monitoring the reaction temperature in the tank body; the controller is used for adjusting the hydrogen inlet system and the exhaust system according to data acquired by the pressure gauge and the hydrogen content sensor I; the controller is used for giving an alarm according to data acquired by the oxygen content sensor and starting the emergency system, and the controller is used for adjusting the heating or cooling system according to data acquired by the temperature sensor. Various data of the hydrogenation reaction can be monitored, safety accidents are avoided, and the problem that in the prior art, the hydrogenation reaction process cannot be intelligently monitored, and consequently safety risks exist in waste lubricating oil recovery treatment is solved.

This application provides a testing apparatus and system for charging equipment, relating to the field of charging equipment testing. The testing apparatus includes: a first controller, at least one second controller, a first test board, at least one second test board, a first control guide board, at least one second control guide board, a first gun holder, and at least one second gun holder; the first controller is connected to the first test board and the first control guide board, and both the first test board and the first control guide board are connected to the first gun holder; each second controller is connected to one second test board, each second test board is connected to one second control guide board, and each second control guide board is connected to one second gun holder; the first test board is also interlocked with each second control guide board, and the first control guide board is also interlocked with each second control guide board. This enables parallel and / or serial testing of charging equipment, improving testing efficiency, and allowing for collaborative sharing of test data with the production line system.

The utility model discloses a wireless charging system of a wireless clamp type pattern phase voltammeter. The wireless charging system comprises a wireless charging transmitting terminal and a wireless charging receiving terminal. The wireless charging transmitting terminal comprises an inverter circuit and a transmitting coil. The wireless charging receiving end comprises a receiving coil, a rectifying circuit, a battery unit and a power management unit; the transmitting coil is used for generating electromagnetic induction with the receiving coil and transmitting and receiving wireless signals; the input end of the inverter circuit receives an external direct current power supply and is used for converting direct current into alternating current; the transmitting coil is connected with the output end of the inverter circuit; the rectifying circuit is connected with the receiving coil and is used for converting alternating current into direct current and transmitting the direct current to the power management unit; the power management unit is connected with the battery unit and used for controlling charging of the battery unit. The electric terminal equipment is a phase voltammeter and a current clamp. According to the utility model, the problem that the current clamp wireless acquisition cannot be realized by the current graph phase voltammeter is solved.

The invention relates to the technical field of power transmission and distribution wire hanging, in particular to an unmanned aerial vehicle platform auxiliary grounding hanging device which comprises a hanging base body, a fixed wire clamp hook, a movable wire clamp hook, a movable wire clamp hook driving assembly, a grounding wire connecting piece and a hanging piece. The outer side wall of the hanging base body is in threaded connection with a grounding wire connecting piece, a movable wire clamp hook driving assembly is arranged in the hanging base body, the movable end of the movable wire clamp hook driving assembly penetrates out of a through hole in the top of the hanging base body and is connected with the end of a movable wire clamp hook, and the middle of the movable wire clamp hook is connected with the side wall of a fixed wire clamp hook through a pin shaft. The fixed end of the fixed wire clamp hook is connected with the top of the hooking base body, the top of the fixed wire clamp hook is connected with the outer wall of the hooking hanging piece, and the hooking hanging piece is hooked with a hook connected with a hanging rope at the bottom of the unmanned aerial vehicle. The efficiency of hanging the grounding wire is low; and the safety risk exists.

The utility model relates to the technical field of chemical equipment maintenance, in particular to a maintenance tool for a magnetic flap liquid level meter. Comprising a shell, a turbine is rotatably arranged in the shell, a screw hole is formed in the center of the turbine in a penetrating mode, and an internal thread is arranged in the screw hole; the upper guide pipe is arranged at the top of the shell and communicates with the interior of the shell; the lower guide pipe is arranged at the bottom of the shell and communicates with the interior of the shell; the motor is arranged on one side of the shell, an output shaft of the motor is connected with a worm, and the worm is in threaded engagement with the turbine; the top end of the screw rod sequentially penetrates out of the lower guide pipe, the screw hole of the turbine and the upper guide pipe; the screw rod is provided with an external thread and is meshed with the thread of the screw hole of the turbine; a pulley is arranged at the top end of the screw rod; and the magnet is arranged at the top end of the screw rod. According to the utility model, the problems of inconvenience in maintenance and safety risk caused by the fact that a worker needs to climb a height in the existing repairing tool are solved.

The utility model relates to projection screen technical field provides a kind of for the obstruction detection and stopping control device of projection screen, in the utility model, by the detection module of integrated posture sensor and wireless signal transmitter being set in curtain guide rail, and by power supply independent power supply, can real-time perception the posture change in the lifting process of guide rail, when detecting abnormal inclination exceeds preset threshold, obstruction signal is generated in time and is sent to drive control unit by wireless mode, realize the automatic stop or reversal of motor, effectively avoid curtain tear, guide rail deformation and motor overload, improve the security and reliability of projection screen operation, solve the problem that the existing electric projection screen lacks obstruction automatic stop function and leads to equipment damage and security risk.

The invention relates to the technical field of server NFC security authentication, in particular to a server NFC security management system and method based on a dynamic secret key, and the method comprises the steps: combining a unique hardware response generated by a physical unclonable function with an internal reference clock at a local server, and generating a dynamic initial secret key seed; when an authorized NFC card approaches, a session root key is calculated based on the seed, and the identity of the card is verified. In the key generation process, current system state parameters and network load indexes of the server are introduced in real time to serve as dynamic environment factors. The factor and the identity token are subjected to key derivation function operation to jointly generate a final temporary access key. According to the method, the physical uniqueness of hardware and the instantaneous state of system operation are utilized to ensure that the key generated by each time of authentication has unpredictable and unreproducible characteristics, key leakage and replay attacks are effectively resisted, and the security of physical access authentication is improved.