34results about How to "Meet security needs" patented technology

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.

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 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 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 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.

The invention relates to a wide-area distributed manned aircraft dynamic power supply network system and a control method, and relates to the technical field of aerospace, wireless charging and aircraft energy supply. The system comprises ground wireless charging tower arrays distributed at intervals along a preset flight corridor, an air mobile receiving subsystem carried on a manned aircraft and a wide-area cooperative scheduling platform, the ground charging tower constructs a continuous or quasi-continuous energy corridor in the air through directional electromagnetic energy emission; and the airborne receiving subsystem adopts a double-source energy management system, and realizes smooth power supply switching and online range extension across the tower footing in the flight process in cooperation with a soft switching strategy of'switching-on and switching-off '. In addition, the system guarantees the electromagnetic safety of the manned cabin through a layered electromagnetic shielding structure and real-time field intensity monitoring. According to the invention, the problem of low efficiency caused by limited endurance and frequent take-off, landing and charging of the manned electric aircraft is effectively solved, and long-distance air cruise and dynamic energy complementation are realized.

This application discloses a transmission processing method, apparatus, device, and readable storage medium, belonging to the field of communication technology. The method includes: a terminal sending a second message to a third network-side device; the terminal receiving a first message, the first message being used to activate security between the terminal and a first network-side device; the terminal obtaining a second key based on a first key and a freshness parameter, the first key being available on the second network-side device, and the second key being used to protect communication messages between the terminal and the first network-side device.

This utility model discloses a snap-fit ​​type flexible cooling duct, relating to the field of electric locomotive technology. It includes a flexible duct body, a flexible duct frame, and an auxiliary locking assembly. The flexible duct body consists of a supporting frame and inner and outer flame-retardant fabric coverings. The flexible duct frame includes an inner flexible duct frame and an outer flexible duct frame. The auxiliary locking assembly is a screwless snap-fit ​​structure, including a locking assembly shell, guide slide, guide slide plate, snap plate with snap groove, buckle, and connecting rod with positioning components. This utility model replaces the traditional screw fixing method with a mechanical locking structure using flame-retardant fabric covering the inner and outer sides of the supporting frame and snap grooves and buckles. It has advantages such as stable connection, strong airtightness, and fire resistance, effectively extending the service life of the flexible duct and preventing damage to the motor from component detachment. Simultaneously, the auxiliary locking assembly enables quick assembly and disassembly, significantly improving maintenance efficiency.

The invention relates to the technical field of industrial executing mechanisms, and particularly discloses a novel electro-hydraulic composite driving system which comprises an electric part, a hydraulic control part, a cylinder body assembly and a piston rod assembly. The electric part comprises an electric part motor, a speed reducer, a gearbox assembly, a gear transmission pair, an encoder assembly, a lead screw transmission pair assembly and a piston locking nut. The hydraulic control part comprises a main electromagnetic reversing valve, an overflow valve, a first oil tank, an energy accumulator, a first electromagnetic two-position reversing valve, a bidirectional hydraulic lock, a bidirectional hydraulic pump, a hydraulic control part motor, a balance valve, a second electromagnetic two-position reversing valve, a second oil tank and a stop valve. The novel electro-hydraulic composite driving system has the large bearing advantage of a hydraulic cylinder and the high-precision characteristic of an electric cylinder, the adaptive scene of an executing mechanism is expanded, and the safety, reliability and high efficiency of operation of industrial equipment are improved.

This invention discloses a method and system for tracking networked devices based on Meshtastic technology. The method is applied to a target network containing several online devices, categorized as primary and secondary devices. The method includes: for each online device, sending its location information to the target network at a preset frequency; if the receiving device is a secondary device, forwarding the location information to the target network; if the receiving device is a primary device, matching the corresponding secondary device based on the device ID name in the location information to obtain the device to be located; and sorting and optimizing the collected location information of the devices to be located based on time information to obtain the tracking trajectory of the devices to be located. This invention combines wireless communication technology with positioning functionality, enabling device network positioning and tracking even in outdoor areas without base station coverage, thus meeting the security requirements of complex outdoor environments.

The utility model discloses an interlocking mechanism modularization installation structure of switch equipment, which comprises an isolation mechanism and a circuit breaker mechanism, the isolation mechanism comprises an isolation interlocking plate and a grounding interlocking plate which are arranged on an upper mechanism box in a manner of moving in the same direction, and the circuit breaker mechanism comprises a closing interlocking plate and an opening interlocking plate which are arranged on a lower mechanism box in a manner of moving in the same direction. The switch-on interlocking plate and the switch-off interlocking plate are respectively provided with a spring structure connected with the lower mechanism box, and when the isolation mechanism and the circuit breaker mechanism are installed on the switch cabinet, the switch-on interlocking plate and the switch-off interlocking plate are respectively in elastic abutting contact with the isolation interlocking plate and the grounding interlocking plate. The isolation mechanism and the circuit breaker mechanism can be installed as independent modules, the dependence on the installation precision is reduced, the contact position of the switching-on interlocking plate and the switching-off interlocking plate is adaptively adjusted through a spring structure, high-precision calibration is not needed, the assembly time is shortened, the installation convenience and the precision fault tolerance are improved, and the manufacturing, installation and maintenance cost is reduced.

The utility model relates to the technical field of aluminum alloy plates, and discloses an aluminum alloy battery tray which comprises an aluminum alloy tray body, and a partition plate and a limiting plate are welded and fixed in a cavity of the aluminum alloy tray body. A bottom plate; buffering plates are fixedly installed on the two sides in the aluminum alloy tray cavity, and the side face energy absorption assembly is arranged between the buffering plates and the inner side face of the aluminum alloy tray cavity. And the protection assembly comprises a circular ring, a push rod and a push column. The partition plate and the limiting plate are arranged in the cavity of the aluminum alloy tray, limiting installation of the battery pack is facilitated, the rigidity of the aluminum alloy tray is further improved, and the side face energy absorption assembly is arranged between the buffer plate and the inner side face of the cavity of the aluminum alloy tray and used for energy absorption protection during collision. The battery is prevented from being damaged after the side edge of the aluminum alloy tray is damaged, and then spontaneous combustion of the battery is caused, the battery is further protected by arranging the protection assembly, the protection upper limit of a product is improved, and the safety requirement of a vehicle is met.