45results about How to "Meet security needs" patented technology

The invention relates to the technical field of ship lock slope monitoring, in particular to a ship lock slope displacement monitoring and early warning method and system based on hull operation influence. The method comprises the following steps: carrying out ship lock slope multi-source data real-time acquisition on ship lock slope area nodes to obtain real-time ship lock slope multi-source displacement factor data; ship lock slope displacement prediction processing is carried out based on the real-time ship lock slope multi-source displacement factor data, and ship lock slope displacement prediction data is generated; based on the ship lock slope displacement prediction data, time sequence space evolution trend analysis and time sequence space evolution trend analysis of ship lock slope displacement are carried out, and space-time evolution ship lock slope deformation data are generated; and performing ship lock slope displacement monitoring and early warning state evaluation processing based on the space-time evolution ship lock slope deformation data to generate ship lock slope displacement monitoring and early warning state evaluation data. According to the ship lock slope displacement monitoring system and method, accurate monitoring of ship lock slope displacement is achieved by analyzing multiple factors related to the ship lock slope.

The invention relates to a power data federated learning privacy protection method based on efficient homomorphic encryption. The method comprises the following steps: step 1, a client initializes a neural network model; step 2, the server side encrypts and updates local neural network model gradient parameters uploaded by the client side; 3, the server side executes gradient average aggregation operation, the server side does not need to decrypt, the encrypted gradient parameters uploaded by the client side are directly calculated, an average value is solved, and therefore global gradient parameters are updated; step 4, after each client receives the updated global gradient, carrying out decryption calculation operation; 5, loading the updated weight parameters of the neural network model into a local neural network model, and performing neural network model training by using a local data set; the problems that an existing encryption technology is large in operand, large in computing resource overhead and low in algorithm efficiency, and privacy leakage exists in the transmission and analysis process of power data can be solved.

The invention provides an interpretability-based image classification model backdoor defense method and device. The method comprises the following steps: building a clean model and a backdoor model of backdoor experimental environment reference training image classification; carrying out an interpretability experiment on the trained clean model and back door model to obtain concepts of various categories under the data set and screening the concepts; based on the screened concepts, carrying out comprehensive feature vector construction capable of being explained and expressed; taking the constructed comprehensive feature vector as an input to train a binary classifier used for distinguishing a clean model and a subsequent model; and judging whether the to-be-detected image classification model belongs to the backdoor model or not by using the binary classifier. According to the method, the image classification model backdoor defense method based on interpretability is introduced, the clean model and the backdoor model are effectively distinguished by utilizing the expression difference of the model under different interpretable methods, detection and defense of the backdoor injection attack are realized, the method has relatively high detection accuracy and practicability, and the safety and reliability of the model are improved.

This invention discloses a time-constrained, secure, and controllable data flow method in a cloud-edge environment, belonging to the field of mobile edge cloud computing. Specifically, it involves: First, establishing a communication scenario including an authorizing agency for both the sender and receiver, the sender, edge nodes, a cloud server, and the receiver. Given security parameters, the authorized agency for the receiver runs a global initialization algorithm, outputting public parameters and domain public / private keys. Then, the authorized agency for the sender inputs the public parameters and domain public key, outputting its own domain public / private key. For each sender, an access structure and a valid time interval are assigned, and an encryption key is generated. For each receiver, an attribute set is assigned, and a decryption key is generated. Finally, the sender runs the encryption algorithm and outputs the original ciphertext; the edge node verifies the sender's sending authority and outputs the cleaned ciphertext; and the legitimate receiver decrypts and outputs the plaintext. This invention meets the requirements for secure and controllable data flow in a cloud-edge environment.

The application discloses a fishing device used in the technical field of phosphating, which comprises a first hook, a second hook and a third hook, the first hook is connected with the second hook and the third hook, the third hook is connected with the first hook and the second hook, the top of the first hook, the second hook and the third hook is connected with a traction part, the traction part is used for pulling the first hook, the second hook and the third hook, when the force applied on the first hook by the traction part is greater than the force applied on the second hook and the third hook, the first hook vertically rises, the second hook and the third hook downwardly incline, and the second hook and the third hook are fixed from the side or the bottom of the hanging object by the downward inclination of the second hook and the third hook.

The utility model discloses a high-voltage grounding switch for electric locomotive teaching simulation, which comprises a connecting seat, the top of the connecting seat is rotatably connected with a shaft body, two sides of the shaft body are fixedly connected with a left support and a right support respectively, one end of the left support and one end of the right support are fixedly connected with knife switches, and two sides of the shaft body are connected with knife switches. One end of the connecting seat is fixedly connected with a contact spring piece, the contact spring piece corresponds to the position of the knife switch, a lower cover is arranged at the bottom of the connecting seat, one end of the lower cover is rotatably connected with an operating rod assembly, an interlocking mechanism, a turntable assembly and a connecting rod assembly are arranged in the lower cover, one side of the interlocking mechanism is connected with a lock assembly, and the lower end of the shaft body is connected with the connecting rod assembly. One end of the connecting rod assembly is connected with the turntable assembly, and one end of the turntable assembly is fixedly connected with the operating rod assembly. The appearance size, each part and action interlocking control performance of the device are consistent with those of a real piece, the teaching practical training requirement and the safety requirement are completely met, and meanwhile the cost is greatly reduced.

The invention provides a traffic safety processing method, system and device, equipment, a storage medium and a product. The method comprises the following steps: acquiring network traffic sent from a user terminal to the Internet from an access network; matching the network traffic with a user-defined security policy; under the condition of successful matching, determining target traffic classification identification information corresponding to the network traffic according to the self-defined security policy; under the condition that the matching fails, matching the network traffic with a service scene security policy, and determining target traffic classification identification information corresponding to the network traffic; matching a corresponding target security policy according to the target traffic classification identification information; and performing security processing on the network traffic according to the security capability node corresponding to the target security policy.

The utility model belongs to the technical field of medicine taking grippers, and particularly relates to a rapid medicine dispensing machine medicine taking gripper based on flexible gripping, which comprises a base plate, a rotating motor is mounted on the base plate, the output end of the rotating motor is fixedly connected with a rotating disc, a support is mounted at the top of the rotating disc, a first motor is mounted in the support, and a second motor is mounted in the first motor. The output end of the first motor is fixedly connected with a first force arm. According to the manipulator, three-dimensional space positioning of the tail end of the gripper is achieved through the rotating motor and the multi-joint force arm, the horizontal operation range can be enlarged, and the gripping angle can be accurately adjusted; the arc-shaped active clamping jaw and the auxiliary clamping jaw are matched with the connecting rod, the U-shaped rotating rod and the closing plate, so that flexible wrapping and grabbing can be realized by fitting the shape of the medicine, the contact stress is reduced, and the damage risk is reduced; and the rotating stability is improved through the design of a base plate supporting column and balls, the grabbing efficiency can be improved through the overall scheme, multi-shape medicine compatibility can be achieved, and the requirements of automatic medicine dispensing for efficiency and safety are met.

The application discloses a transient stability prevention control measure generation method and a related system, including the following steps: in a predicted fault scenario, a machine learning model is used to predict the transient stability of the current operation mode of a power system, the input of the machine learning model including various electrical characteristics related to the transient stability of the power system; the operation mode predicted as unstable is taken as an explained sample, a model explanation method is used to determine the influence degree of each electrical characteristic in the explained sample on the transient stability; candidate control units are determined according to the influence degree, and the candidate control units are adjusted, and the machine learning model is used to predict the transient stability of the adjusted operation mode until an operation mode predicted as stable is obtained, so that transient stability prevention control measures are generated. The method improves the explainability of the data-driven transient stability analysis model, the overall scheme requires a short time, and is suitable for online application.

The invention provides a passive cold storage box design method based on multi-physics coupling simulation, which comprises the following steps: step 1, establishing a three-dimensional geometric model of a passive cold storage box in COMSOL Multiphysics, including a box body thermal insulation layer, an internal cavity and an ice plate, and endowing the ice plate with a phase change material attribute module; 2, setting a multi-physical field boundary condition and an initial state, and setting a transient solver; 3, setting a solid heat transfer control equation; and 4, parametric scanning is adopted, a simulated temperature-time curve is obtained through transient solution, and ice plate distribution meeting the cold storage condition is screened. According to the method, the temperature field distribution and the temperature-time change curve in the passive cold storage box can be obtained, so that a better arrangement mode meeting the cold storage requirement is determined, the temperature of the cavity in the cold storage box can be maintained to be less than or equal to 15 DEG C by adopting the mode, and the duration time reaches more than 40 hours.

The embodiment of the invention relates to an information transmission method and device, communication equipment, a communication system and a storage medium, user equipment (UE) obtains a PC5 security policy, and the PC5 security policy is used for protecting PC5 communication between relay UE and remote UE.

This invention relates to the field of intelligent lighting technology and discloses a method and system for predicting urban lighting demand based on a spatiotemporal graph neural network. The system includes: a multi-source data perception and processing module, a spatiotemporal graph construction and feature learning module, a meta-learning adaptive prediction module, a lighting strategy optimization and execution module, and a model online update module. By integrating multi-source heterogeneous data from IoT terminals and urban management databases to construct a unified spatiotemporal dataset, and utilizing a spatiotemporal graph neural network to simultaneously learn the complex dependencies of different nodes in the city in the temporal and spatial dimensions, it can more comprehensively and accurately depict the formation and evolution of urban lighting demand, thereby improving the accuracy and reliability of predicting future lighting demand intensity and providing a basis for energy-saving regulation. By introducing a meta-learning strategy, the prediction model can utilize historical experience to adapt to new urban areas and time periods, solving the problem of insufficient generalization ability of the model in unfamiliar scenarios.

The utility model relates to the technical field of building construction, and disclose a kind of side-mounted no column stair aluminum alloy glass handrail fixing device. The device adopts modular design, including glass handrail fixed plate, clamping groove, middle decorative cover plate, lower decorative cover plate, U-shaped rubber pad, wedge-shaped rubber strip, and is connected with wall body by expansion bolt to form stable support structure. The device takes aluminum alloy fixed plate as main force component, combines A / B double-piece hollow clamping groove and plum-blossom-shaped expansion bolt layout, realizes the balance of light weight and high strength. The wedge-shaped rubber strip and the self-adapting clamping system formed by U-shaped rubber pad of the device can compensate for glass thickness tolerance and effectively reduce metal collision noise. The device uses welding-free installation process, and is matched with anodized decorative cover plate. It is suitable for various architectural styles, maintenance is more convenient, and safety and aesthetic evaluation are better.

This invention proposes a design method for an omnidirectional icebreaker wave generator in actual ice-covered sea areas. First, data collection and processing are performed, collecting and processing relevant information about the target sea area and sea ice. Then, based on the potential flow theory model, the wave generation period interval, sea ice strain response, wave height scaling factor are calculated. The wave height scaling factor is used to calculate the target wave height and maximum stroke, resulting in the target period wave. Finally, the target period wave is used to obtain the wave generator shape curve, completing the wave generator design.

The invention relates to the technical field of network security protection, and discloses a photovoltaic station 5G network security protection system, which comprises a 5G network security module, the 5G network security module comprises a risk evaluation module, a protection system module and a data transmission module, the risk evaluation module performs construction drilling based on a chaos engineering theory, and the protection system module performs data transmission based on the chaos engineering theory. The risk assessment module is connected with a data acquisition module, the data acquisition module and the protection system module are constructed based on a digital immune technology, and the data transmission module constructs a data transmission channel based on a framework of an endogenous safety protection model. According to the invention, the network security protection model is constructed, then the terminal monitoring module monitors the abnormal behavior of the terminal after the access of the 5G access module, and a protection system is constructed, so that the problems of weak 5G security protection capability and insufficient risk management and control means of the current photovoltaic station are solved.

The invention discloses a special power supply module for a modularized transformer test, relates to the technical field of distribution network test equipment, and aims to solve the problems that the existing test equipment is dispersed, the power supply adaptability is poor, the safety protection is insufficient and the environment adaptability is weak. The system comprises a core power supply module, a gear adjustment module, an intelligent adaptation module, a safety protection module, an emergency stop module and an integrated installation structure. The core power supply module supplies power to each module, and the integrated installation structure reserves a standard interface and supports rapid replacement of various test modules. The core power supply module realizes integrated movement of test equipment and a power supply, the gear adjustment module accurately regulates and controls output parameters, the intelligent adaptation module automatically matches test parameters, the safety protection and emergency stop module constructs a whole-process safety guarantee, and the whole device has strong environment adaptability. The method can improve the test efficiency and accuracy, reduces the safety risk, and is suitable for various test scenes of the distribution network transformer.

The application provides a post-quantum certificateless signature generation method and device based on symmetric cryptographic primitives. The method comprises steps 1 to 7. The application initiatively proposes a post-quantum certificateless signature based on symmetric cryptographic primitives, generates zero-knowledge proof through secure multi-party computation, can achieve the purpose of resisting quantum, and satisfies the post-quantum security requirement of the generation of the certificateless signature, thereby improving the security of the target to be protected.

The invention provides beta-glucan-quinoa protein interpenetrating double-network gel as well as a preparation method and application of the beta-glucan-quinoa protein interpenetrating double-network gel. The beta-glucan-chenopodium quinoa protein interpenetrating double-network gel is prepared from the following raw materials: chenopodium quinoa protein, beta-glucan and water, the concentration of the chenopodium quinoa protein in the gel is 5 to 25 percent, and the concentration of the beta-glucan in the gel is 3 to 5 percent. The beta-glucan is oat beta-glucan or barley beta-glucan, and the beta-glucan is beta-glucan or barley beta-glucan. The preparation method of the beta-glucan-chenopodium quinoa protein interpenetrating double-network gel comprises the following steps: uniformly mixing the chenopodium quinoa protein, the beta-glucan and water, heating in a water bath, carrying out gelation reaction, cooling after the reaction, and refrigerating and storing to obtain the beta-glucan-chenopodium quinoa protein interpenetrating double-network gel. The quinoa protein and the beta-glucan are used as raw materials, the adaptability is high, the enhanced double-network gel can be prepared under the neutral condition, and the stability is high. The gel provided by the invention has excellent water binding capacity and gel strength, and is relatively high in antioxidant activity.

The utility model belongs to battery technical field, propose a gasket structure, electric core, battery package and electric car, wherein, gasket structure includes X type connecting structure and strip board, four end portions of X type connecting structure all are connected with strip board, two strip boards in the same side are parallel to each other, and are provided with exhaust passage between two parallel strip boards, the inner side of X type connecting structure is provided with two flow guide surfaces close to strip board, the included angle of two flow guide surfaces is a, four end portions of X type connecting structure all are connected with strip board, two strip boards in the same end are parallel to each other, and are provided with exhaust passage between two parallel strip boards, X type connecting structure and strip board can be realized in the heat runaway condition and keep structural integrity, guide high temperature gas to the direction of explosion -proof valve movement through exhaust passage, after exceeding the threshold of explosion -proof valve, discharge, prevent the blockage of exhaust passage.

The utility model discloses an improved positioning protection cutting device, including cutting machine (1), still include: cutting machine operating platform (2), cutting machine (1) sets up at one end of cutting machine operating platform (2), support frame (3), support frame (3) is detachably installed through connecting assembly (4) one side of cutting machine operating platform (2), mobile seat (5), mobile seat (5) is connected on support frame (3) sliding, positioning buffer (6), positioning buffer (6) is connected on mobile seat (5) sliding, for the position of positioning the workpiece (7) of cutting. The utility model simple operation, safe and reliable, can improve cutting accuracy, can effectively reduce the vibration when cutting simultaneously, promotes the stability, the precision and the security of cutting process, prolongs the service life of equipment, and improves work efficiency.

This invention proposes a chassis heating control method for an air conditioner, comprising: acquiring a defrost start signal of the air conditioner during heating operation; responding to the defrost start signal, determining whether each heating zone of the chassis meets its corresponding heating start condition, wherein the chassis is divided into multiple heating zones, and the chassis heater of the air conditioner can heat each heating zone simultaneously or individually; if so, controlling the chassis heater to heat the corresponding heating zone; otherwise, controlling the chassis heater not to heat the corresponding heating zone. This invention, by dividing the chassis into multiple heating zones and accurately matching the heating needs of different areas of the chassis based on the determination result of the heating start condition of each heating zone, enables targeted heating, achieving zoned control and on-demand heating of the chassis heating. This avoids the problem of large amounts of electrical energy being consumed in heating air or heating unfrozen areas when heating a large area or the entire chassis, effectively reducing energy waste.

This utility model discloses a material conveying device for a fireworks sparkling bead granulator, including an explosion-proof wall with an opening, a first conveying pipe and a second conveying pipe located on both sides of the explosion-proof wall, and a safety door located between the first and second conveying pipes; a material conveying channel is provided on the safety door; the safety door closes the outlet of the first conveying pipe after the material conveying is completed. The first conveying pipe is connected to a hopper on one side of the explosion-proof wall, and the second conveying pipe conveys the received material to the fireworks sparkling bead granulation tank; the material in the hopper is conveyed to the fireworks sparkling bead granulation tank through the first conveying pipe, the material conveying channel on the safety door, and the second conveying pipe; the first conveying pipe, the second conveying pipe, and the safety door are fixed on the frame. This utility model has a simple structure, delivers the drug precisely, reduces production costs, improves production efficiency, and ensures production quality.

The application provides a kind of suitable for ALC board system ultra-low energy consumption building outer door and window installation structure, including ALC board, flat steel, external thermal insulation, hook bolt, channel steel, angle steel, heat insulation pad, heat insulation gasket, outer window frame, filling insulation, waterproof vapor permeable membrane, waterproof vapor barrier film, pre-pressing expansion sealing tape, metal window sill plate, channel steel is connected with building main body by flat steel, heat insulation pad is fixed in channel steel, outer window frame is fixed on heat insulation pad, heat insulation gasket separates outer window frame and channel steel, filling insulation is filled between outer window frame and ALC board, waterproof vapor barrier film one end is pasted on outer window frame, one end covers angle steel and hook bolt and is pasted on ALC board, waterproof vapor permeable membrane one end is pasted on outer window frame, the other end covers filling insulation and hook bolt and is pasted on ALC board, external thermal insulation double staggered joint is laid on ALC board, external thermal insulation covers filling insulation upwards, metal window sill plate is fixed between filling pre-pressing expansion sealing tape between outer window frame below and external thermal insulation.

The utility model relates to the technical field of household appliances, and provides a liquid heating container. The liquid heating container comprises a container main body and a kettle cover assembly, and a liquid storage cavity is formed in the container main body; the kettle cover assembly comprises a cover main body and a valve body assembly, the cover main body comprises a water outlet part and a main body part, the water outlet part is connected to the main body part, the water outlet part is provided with a pressure relief hole and a water outlet which are arranged at intervals, the main body part is provided with a mounting cavity and a liquid storage cavity, the main body part is provided with a mounting hole communicating the mounting cavity with the liquid storage cavity, the pressure relief hole communicates with the liquid storage cavity, and the water outlet communicates with the liquid storage cavity; the valve body assembly is installed in the installation cavity, partially penetrates through the installation hole and extends out of the liquid storage cavity, and the valve body assembly is suitable for closing or opening the water outlet. According to the liquid heating container, the pressure relief hole is communicated with the water outlet part of the cover body, when water boiled in the liquid heating container is boiled, air pressure of the container body can flow out of the liquid heating container through the pressure relief hole, and the pressure relief effect is achieved.

The invention discloses a key distribution method based on all-optical hiding. The method comprises the following steps: generating a sine microwave signal, processing the sine microwave signal through a microwave amplifier, modulating the sine microwave signal into a laser by combining a preset bias current, and outputting the modulated sine microwave signal in the form of an optical pulse signal; after the optical pulse signal is filtered based on the optical filter, the optical pulse signal processed by the optical coupler is sent to a receiving end; and a receiving end filters and suppresses noise in the received optical pulse signal, extracts phase information of the filtered and suppressed optical pulse signal, converts a phase difference into an amplitude difference of an electric pulse signal, and performs filtering and analog-to-digital conversion on the electric pulse signal to obtain a key waveform. The invention further discloses a key distribution device based on all-optical hiding, corresponding equipment and a storage medium. According to the key distribution method based on all-optical hiding, the key distribution efficiency can be improved, and the risk that the key is stolen is reduced.

The utility model relates to an electromagnetic switch and storage box, including electromagnet subassembly and permanent magnet subassembly, electromagnet subassembly includes at least two in first direction sequential interval arrangement's magnetic core, wherein two adjacent magnetic core is first magnetic core and second magnetic core, and the first magnetic core and second magnetic core are wound with coil, and permanent magnet subassembly has at least first magnetic pole, second magnetic pole, third magnetic pole and fourth magnetic pole.

The utility model relates to the technical field of car light circuit, specifically disclose a miniaturized integrated car light BUCK circuit, including BUCK IC integrated chip, BUCK IC integrated chip includes VIN pin, EN pin, VOUT pin, FB pin, VCC pin and BST pin, has the first capacitor group and second capacitor group on VIN pin, the first resistance formation POWER IN is connected on EN pin, the voltage -division resistance for voltage division is provided with on FB pin, VOUT pin is connected with third capacitor group, the utility model discloses a purpose at to solve the traditional car light circuit reliability problem through car light BUCK circuit, help system improves stability.

The utility model discloses a connector and a power supply system. The connector comprises a socket, a plug, a power transmission line and a communication line. The socket comprises a base, and a male plug-in part, an overload protection switch and an electric control assembly which are arranged on the base, and the electric control assembly is electrically connected with the male plug-in part; the plug comprises a female plug-in part and a connecting wire harness, the female plug-in part is electrically connected with the male plug-in part, and the connecting wire harness is electrically connected with the female plug-in part through an overload protection switch; the power transmission line is electrically connected with the electric control assembly and is used for electrically connecting the male plug-in part with a power supply so as to transmit power supply current between the male plug-in part and the power supply; and the communication line is electrically connected with the overload protection switch, and the communication line is used for transmitting a current signal corresponding to the power supply current to the overload protection switch, so that the overload protection switch controls the connection and disconnection of the connection wire harness and the female plug part according to the current signal. The energy storage equipment can be prevented from being damaged due to overload, and the safety requirement of a user for charging and discharging can be better met.

The utility model relates to a glass canopy, belongs to the technical field of glass canopies, and particularly relates to a super-long overhanging type steel structure glass canopy which comprises a wall body mechanism, a glass mechanism is placed on the top of the wall body mechanism, a cleaning mechanism is fixedly connected to the top of the wall body mechanism, and the wall body mechanism comprises a wall body main body. Three fixing frames are arranged on one side of the outer wall of the wall body main body, connecting columns are fixedly connected to one sides of the outer walls of the three fixing frames, and first holes are formed in the outer surface walls of the three fixing frames and the outer surface walls of the three connecting columns; compared with a traditional installation mode, the installation is more convenient, the cleanliness of the glass body can be kept, so that the light permeability is improved, and the problems that when existing equipment is used, due to the fact that construction is conducted on the top of a steel framework, the connecting position is prone to loosening, connection is not stable, and accidents are prone to occurring are solved.

The utility model relates to a kind of transfer devices for cross rod production, including transfer trolley body, transfer trolley body is by the first vehicle body and the second vehicle body splicing composition, the first vehicle body is equipped with traction arm, the second vehicle body is equipped with traction hook, the first vehicle body is connected with the second vehicle body by butt joint mechanism and is inserted, and it is realized firm connection by locking mechanism;Traction arm can be connected with the traction hook of other transfer vehicle body, realize multiple vehicle body series connection transport;Traction arm can be folded and stored, and limiting is realized by baffle and blocking step;The first vehicle body and the second vehicle body bottom are equipped with gyro wheel, upper portion is equipped with fender for limiting cross rod position.The device adapts to different transport batch demand, can be split use to improve flexibility, can also be spliced use to improve transport efficiency, series connection structure improves transfer capacity, folding structure reduces storage space occupation, realizes efficient, safe, space-saving cross rod transfer operation.