29results about How to "Without compromising security" patented technology

The utility model relates to the technical field of fixing and supporting, and discloses a fixing and supporting device for house assembly type construction, which comprises a base I and a base II, a guide rod is fixedly connected onto the base I, a limiting block is fixedly connected onto the guide rod, a threaded rod is rotatably connected between the limiting block and the base I, and a threaded rod is fixedly connected onto the threaded rod. A threaded block is in threaded connection with the threaded rod, a connecting long strip is hinged to the threaded block, a supporting rod is hinged to the connecting long strip, the supporting rod is hinged to the limiting block, and the threaded block is slidably connected to the guide rod. According to the fixing and supporting device for house assembly type construction, when the fixing and supporting device for house assembly type construction is used, the motor is started and drives the threaded rod to rotate, so that the threaded hole in the threaded rod ascends, the supporting rod is unfolded to be used for supporting an assembly type component, the stress area is greatly increased, and the component is uniform in stress, not prone to deformation and firm in connection; the overall safety and stability are not affected, operation is easy, and time and labor are saved.

The utility model relates to a newly-built channel supporting structure close to important buildings, which comprises a plurality of cast-in-situ bored piles respectively arranged on two sides of a channel, a high-pressure jet grouting pile is arranged between every two adjacent cast-in-situ bored piles, a top beam is arranged at the top of each cast-in-situ bored pile, a channel bottom lining is arranged on the bottom surface of the channel, and the channel bottom lining is arranged on the bottom surface of the channel. Hidden beams are arranged at the positions, close to the cast-in-situ bored piles, of the two sides of the channel below the channel bottom lining, the hidden beams on the two sides are connected through hidden supports arranged at intervals, and stand column piles are arranged below the middles of the hidden supports and connected with the top beams through temporary vertical inclined supports. The hidden beams and the hidden supports are arranged at the bottom of the channel, the hidden beams and the hidden supports can serve as inner supports to reduce deformation of the side wall of the channel, safety of buildings around the channel is guaranteed, the water passing section is not affected, the length of the supporting piles can be shortened on the premise that safety is guaranteed, cost is saved, and the stand column piles are arranged to guarantee that when the channel is wide, the hidden supports are stably stressed. And the safety of the channel is not influenced.

The utility model provides a folding wooden children's learning tower, including upper tower and lower tower, the upper tower includes upper tower side plate, upper tower bottom plate and upper tower back plate, the upper tower side plate is provided on the two sides of upper tower bottom plate respectively and vertically connected, the two ends of upper tower back plate are connected on the upper tower side plate through back plate bolts, and the upper tower bottom plate is connected with the upper tower side plate through the back plate bolts. An overturning stop lever is arranged between the two upper tower side plates, the lower tower comprises lower tower side plates and a lower tower top plate, the lower tower side plates are fixedly connected to the two sides of the lower tower top plate respectively, and the lower tower top plate and the upper tower bottom plate are close to each other; the upper tower body and the lower tower body are arranged and rotationally connected through the hinge, the using function of the learning tower can be changed by changing the unfolding shape of the learning tower, the upper tower body and the lower tower body can be locked through the hasp, and it is guaranteed that when a child stands on the surface of the upper tower body, the hinge does not affect the safety of the whole learning tower; and the upper tower and the lower tower cannot be easily folded, so that the safety is enhanced.

The present application relates to a kind of laser radar and camera online self-calibration method and system without induction, the method includes: S1.in the process of vehicle driving, through multi-source trigger mechanism acquisition laser radar point cloud data and camera image data, simultaneously obtain vehicle motion state information and automatic driving perception system output result, the multi-source trigger mechanism includes time trigger, event trigger and cloud data mining trigger parameter degradation model;S2.the pre-processing and feature extraction of the multi-source data collected, obtain laser radar point cloud feature and camera image feature;S3.based on geometric constraint, motion consistency and perception result fusion, constructs multi-modal verification model, and carries out multi-dimensional verification to calibration parameter.The present application not only reduces the artificial maintenance cost, through automatic means maintenance vehicle state to achieve sensor calibration parameter degradation self-detection and self-calibration without induction, and improves the reliability and attendance rate of automatic driving vehicle.

The present invention discloses a data decryption method for a mobile data storage device, which includes the following steps: S1, verifying the identity of the user, assigning access rights, and generating an identity authority key; S2, reading a request instruction for data access, determining the type of access data, and generating a data access key; S3, performing a point multiplication operation on the identity authority key and the data access key to generate a decryption request key; S4, the decryption request key obtains the corresponding data decryption key from the decryption key data management library; S5, the data decryption key decrypts the corresponding data; S6, a hash function verifies whether the file has been tampered with; S7, the mobile data storage device outputs the target data. In the present invention, the identity authority key can be generated only after identity authentication, the data decryption key corresponding to the access data type is decrypted from the decryption key data management library through the decryption request key, and the data decryption key is then decrypted, which increases the difficulty of decryption, thereby improving data security.

The invention discloses a safety torque cancelling circuit which comprises a channel loop configured to obtain a safety signal from a safety loop of an elevator and cut off a power supply of an isolation driving unit of an upper bridge arm switch tube or / and a lower bridge arm switch tube in response to the state of the safety signal; and the diagnosis loop receives the output state of the channel loop and is used for cutting off the driving signal of the upper bridge arm switch tube or / and the lower bridge arm switch tube when the diagnosis is abnormal. While electronic star sealing is realized, the fault margin and safety of the STO are not reduced. In addition, as the STO only blocks the driving signal of the upper bridge arm or the lower bridge arm, the lower bridge arm or the upper bridge arm can adopt an electric braking method for improving the braking torque disclosed by CN117997175A.

The utility model provides a top cover assembly, a battery monomer, a battery and a power utilization device, and relates to the technical field of batteries, the top cover assembly comprises a top cover sheet, a pole and a first insulating piece, the top cover sheet is provided with a first surface, a second surface and a first through hole, the pole comprises at least one first connecting part and at least two second connecting parts, the first connecting part is arranged on one side, provided with the first surface, of the top cover sheet and is used for being connected with an electric connecting piece, and the second connecting part is used for being connected with a tab; the first insulating part is fixedly connected to the pole and the top cover piece and comprises a second insulating part and a third insulating part which are connected, the second insulating part is arranged between the hole wall of the first through hole and the second connecting part of the pole, and the third insulating part is arranged on the side, provided with the first face, of the top cover piece; therefore, the first insulating part has fixing, insulating and sealing effects at the same time.

This invention provides a two-way plastic stacking barrel, relating to the technical field of plastic packaging barrels. The two-way plastic stacking barrel includes a barrel body, a handle, and a barrel opening component. The upper part of the barrel body has a handle groove, a barrel opening groove, a raised strip, and a top flat surface. The lower part of the barrel body has a groove, symmetrical side grooves, and a bottom flat surface. The handle is disposed within the handle groove and connected to the barrel body; the barrel opening groove communicates with the handle groove; and the barrel opening component is disposed within the barrel opening groove. The groove is adapted to the raised strip, the symmetrical side groove communicates with the groove, and the bottom flat surface is adapted to the top flat surface. This two-way plastic stacking barrel solves the technical problem of existing plastic packaging barrels having poor stacking stability and flexibility, affecting the safety and efficiency of material storage and transportation.

The invention provides a multi-component composite electrolyte, a preparation method and application of the multi-component composite electrolyte in a zinc ion battery. The preparation method of the multi-component composite electrolyte comprises the following steps: adding acetamide and asparagine into a ZnSO4 solution, uniformly stirring and mixing, and standing to obtain the multi-component composite electrolyte. The aqueous zinc ion battery with long normal / low temperature cycle life, stable electrode / electrolyte interface and strong corrosion resistance is realized by a method for compensating the negative effect of dynamics caused by an organic solvent, introducing acetamide into a ZnSO4 electrolyte to improve the wide temperature range adaptability of the battery, and introducing asparagine to compensate the reversibility of Zn deposition dynamics.

This invention discloses a construction method for deep and large foundation pits without the need for replacement supports, belonging to the field of underground structure sequential construction technology. During the main structure construction, after the previous formwork sidewall is completed, only the next steel support is removed; replacement supports are no longer installed, thus eliminating the need for replacement supports. Only the concrete supports are cut, retaining the lintel beams, which function as part of the sidewall, allowing them to play a role in both the excavation and main structure construction phases. The bottom slab ribs are adjusted from triangular bevels to stepped shapes, allowing the scaffold uprights to act vertically on the ribs, ensuring the overall stability of the scaffold. The increased rib cross-sectional dimensions reduce the impact of lateral deformation of the foundation pit on the sidewalls. This invention shortens the construction process, reduces construction costs, ensures foundation pit safety, and has good economic benefits.

The utility model discloses a linear locking system with emergency tongue breaking, including the casing, the hollow setting in the casing interior, including locking cavity, drive cavity and transmission cavity, drive cavity inside horizontal fixed mounting has a motor reduction gearbox, locking cavity inside horizontal activity has a screw rod, locking cavity one end is provided with the locking mouth, locking cavity inside is provided with a lock pin in the locking mouth place activity, the hollow setting in the screw rod, the lock pin one end horizontal activity card sets up in the screw rod inside, the screw rod is connected with a screw rod nut through the thread transmission on the screw rod, and the screw rod nut is rotationally arranged in the locking cavity, and the transmission cavity is rotationally connected with a primary gear, and the output end transmission of primary gear and motor reduction gearbox is connected, and primary gear and screw rod nut are connected through the thread meshing transmission, and the break slot is set up in the bayonet of the other end of lock pin. The utility model has the advantages that the impact force can break the lock pin from the break slot position under the emergency, does not affect the blade operation and safety, and the lock pin replacement is more convenient.

The application discloses a dual-mode reduction operation system and method for lattice-based cryptography hardware acceleration, and relates to the technical field of cryptography and information security. The system comprises a routing control unit, which is used for receiving intermediate result data generated in a lattice-based cryptography algorithm operation process, and generating corresponding routing control signals according to the operation type of the intermediate result data, and outputting the intermediate result data and the routing control signals to corresponding data output ends; a first modular reduction operation unit, which is used for executing Montgomery reduction operation based on a prime number condition on corresponding intermediate result data when receiving a routing control signal of modular multiplication operation; and a second modular reduction operation unit, which is used for executing Barrett reduction operation with 2 as a base on corresponding intermediate result data when receiving a routing control signal of modular addition operation. The application can optimize the implementation performance of the algorithm without affecting the security, and is suitable for various software and hardware environments.

The utility model relates to hydraulic technology field especially, and it is the device of pulling and holding with precise release force and buffer function. The device of pulling and holding contains outer tube (2) and internal cavity (8), outer tube (2) and internal cavity (8) can slide and limit each other, the square hole is contained on oil guide rod (709), and the square hole is placed in auxiliary valve bushing (707), and the square hole is connected with the internal space of oil guide rod (709), when the square hole is pushed out valve bushing, the square hole can connect low pressure space (14) and high pressure space (15), guide rod (704) and oil guide rod (709) are installed on the piston and can move together. The device of pulling and holding has the advantages of simple structure, easy maintenance, high reliability, and has the characteristics of repeated use, accurate release.

The invention discloses a quantile differential privacy noise adding method and device, a medium, equipment and a product. The method comprises the steps that according to a preset expression of a user-defined aggregation function UDAF, a plurality of numerical values to be aggregated are obtained, the UDAF is obtained by replacing a quantile function in advance, and parameters of the UDAF and the quantile function comprise the expression and a target quantile; and selecting a target numerical value corresponding to the target quantile from the plurality of numerical values by using a differential privacy index mechanism to obtain a noise-added quantile value of the quantile function. Therefore, the differential privacy noise adding process can be efficient and controllable, the noise adding error influence can be reduced while the safety is not influenced, and the availability of the query result is improved. Besides, when the SQL statement is rewritten, the quantile function containing the noise adding logic is achieved in a UDAF mode, and the problems that rewriting of the SQL statement is complex, and the running error rate of the rewritten SQL statement is high can be solved.

This invention provides a high-temperature disinfection safety protection control method, device, and cloning workstation. The method includes the following steps: initiating the high-temperature disinfection process; calling a software-based primary control module to control the heating mechanism's start and stop, achieving primary high-temperature protection; real-time monitoring of the primary control module's operating status; if the primary control module fails, switching to a programmable hardware-based secondary control module to control the heating mechanism's start and stop, achieving secondary high-temperature protection; real-time monitoring of the secondary control module's operating status; if the secondary control module fails, switching to a pure hardware-based tertiary control module to control the heating mechanism's start and stop, achieving tertiary high-temperature protection and preventing continuous heating. In this technical solution, by establishing a three-level progressive protection architecture, the failure of any control module does not affect overall safety, completely avoiding the risk of continuous heating.

The application provides a multi-component composite electrolyte, a preparation method and application thereof in a zinc ion battery. The preparation method of the multi-component composite electrolyte comprises the following steps: adding acetamide and asparagine into a ZnSO4 solution, stirring and uniformly mixing, and standing to obtain the multi-component composite electrolyte. The application realizes the water-based zinc ion battery with long normal / low-temperature cycle life, stable electrode / electrolyte interface and strong corrosion resistance by the method of compensating the negative influence of kinetics caused by the organic solvent, introducing acetamide into the ZnSO4 electrolyte to improve the wide-temperature-range adaptability of the battery, and introducing asparagine to compensate the reversibility of Zn deposition kinetics.

The application provides a non-fluoropolymer, a non-fluoropolymer composite diaphragm and application, the non-fluoropolymer includes polymer A and the polymer B at least partially coated on the surface of polymer A, the crosslinking degree of polymer A is X1, the crosslinking degree of polymer B is X2, 5%≤X1≤10%, 50%≤X2≤60%;The non-fluoropolymer composite diaphragm includes base film and coating layer coated on at least one side of base film.The non-fluoropolymer particles of the application have a higher swelling rate at high temperature, also have the reversible characteristics of absorbing and releasing electrolyte, the non-fluoropolymer and the non-fluoropolymer composite diaphragm are applied in the battery, when the battery abnormally heats, the non-fluoropolymer swells rapidly, blocks the ion shuttle channel, avoids the further deterioration of temperature, improves the safety performance of the battery, and when the temperature returns to normal, the non-fluoropolymer particles can restore to the original morphology, restore the ion shuttle channel, so as to not affect the subsequent cycle performance of the battery.

The utility model relates to a foundation pit supporting structure for staged construction of an underpass road box culvert, which comprises a row pile partition wall arranged in the middle of a road, and the left side of the row pile partition wall is vertically connected with early-stage row pile enclosure walls located on the two sides of an early-stage box culvert foundation pit. The right side of the row pile partition wall is perpendicularly connected with the later-stage row pile enclosure walls on the two sides of the later-stage box culvert foundation pit, the early-stage row pile enclosure walls on the two sides of the early-stage box culvert foundation pit are connected, inclined supporting beams are arranged at the right-angle positions formed by the row pile partition wall and the early-stage row pile enclosure walls, and a temporary retaining wall separated from the row pile partition wall is arranged at the top of the early-stage box culvert. The row pile partition wall and the temporary retaining wall are arranged in the middle of the road for staged construction of the box culvert, it can be guaranteed that half road traffic is not interrupted when the box culvert transversely penetrates through the road for excavation construction, and the temporary retaining wall can guarantee the road structure and traffic safety; local gaps are backfilled with plain concrete, so that backfilled soil between the box culvert structure and the enclosure wall cannot collapse, and the safety of the foundation pit and the road is ensured.

An antitheft door with an air filtering function comprises an antitheft door body. The anti-theft door body comprises a door frame and a door body. The door body is provided with a window. A cover plate is hinged to the front side of the door body through hinges. And an air filtering structure is arranged in the window. The door body is further provided with a sliding groove, a containing cavity, a mounting cavity and a cavity. And a descending structure is arranged in the door body. The lifting structure comprises a worm, a shaft rod, a rotary knob, a worm gear, an annular lifting frame, two lead screws, two driven gears, two nut seats and two driving gears. And the air filtering structure comprises an annular mounting frame and two filter screens. Activated carbon is filled between the annular mounting frame and the two filter screens. According to the air purifier, air can be filtered, and the safety performance is not affected.

The present invention relates to the technical field of residual pressure recovery, and discloses a method and system for recycling residual pressure. The method comprises the following steps: receiving a residual pressure recycling instruction, deploying a plurality of residual pressure recovery detection points on a residual pressure recovery device; collecting residual pressure data of each residual pressure recovery detection point, and calculating a residual pressure detection factor of the corresponding residual pressure recovery detection point; screening and processing all residual pressure recovery detection points based on the residual pressure detection factor to obtain a target residual pressure recovery detection point; introducing the generated residual pressure into a pressure energy conversion device to convert the residual pressure into mechanical energy to be recycled; setting working state data of a synchronous generator according to all target residual pressure recovery detection points, converting the mechanical energy to be recycled into electrical energy based on the synchronous generator, and connecting the electrical energy to the grid according to a grid-connected controller, thereby realizing intelligent recycling of residual pressure, reducing the difficulty and cost of residual pressure recovery, not affecting the safety of the residual pressure recovery device, and achieving high residual pressure utilization efficiency, thereby reducing environmental pollution.

The invention discloses an application hot update processing method, terminal equipment and a readable storage medium. The method comprises the following steps: in response to a detected hot update behavior of a target application, pausing the hot update behavior, and uploading a corresponding patch file identifier and an original file identifier to an application store cloud for security detection result query; and receiving a query result fed back by the application store cloud, and performing corresponding processing according to the query result. In this way, the detection efficiency is improved.

The utility model relates to the technical field of fluid loading and unloading arms, in particular to a land loading and unloading arm vertical pipe which comprises a crane pipe body, an installation groove is formed in the crane pipe body, an oil spill prevention probe installed on the crane pipe body is located on the inner side of the installation groove, and a protection plate is installed on the lower portion of the inner side of the installation groove. The land loading and unloading arm vertical pipe has the beneficial effects that the loading and unloading arm vertical pipe is provided with the groove for the loading arm, and the oil spill probe is placed in the groove, so that the oil spill probe is prevented from being damaged due to collision when the loading arm is retracted and released. And meanwhile, the protective plate is arranged on the outer wall of the vertical pipe, so that the oil product can normally pass through while the oil spill probe is protected, and the safety of the oil spill probe is not influenced.

The invention discloses a distribution network area intelligent equipment authentication method and a configuration terminal, and the method comprises the steps: calculating a target signal and an authentication signal according to a management password of distribution network area intelligent equipment, an area number and the noise of a distribution transformer during registration, playing the authentication signal, and collecting a mixed signal containing the authentication signal and the noise of the distribution transformer; calculating a difference value between the mixed signal and the target signal as registration information; the method comprises the following steps: during authentication, acquiring a transformer area number of a distribution network transformer area, playing an authentication signal, collecting a mixed signal containing the authentication signal and distribution transformer noise, correcting the mixed signal by using registration information, and calculating according to the distribution transformer noise and the corrected mixed signal to obtain the transformer area number and a management password. And if the transformer area number is consistent with the transformer area number of the to-be-authenticated distribution network transformer area, using the management password to log in the intelligent equipment of the to-be-authenticated distribution network transformer area to carry out operation and maintenance work. According to the invention, a universal, convenient and efficient solution can be provided for legality verification of the intelligent equipment in the distribution network area in a complex power environment.

The invention discloses a multi-power output device for an aircraft and a control method thereof, the device comprises a converter, the converter comprises a first-stage conversion module and a second-stage conversion module, the first-stage conversion module is configured to receive input of different power supplies from an aircraft power grid and convert the input into intermediate direct current voltage, and the second-stage conversion module is configured to receive input of the different power supplies from the aircraft power grid; the second-stage conversion module is a DC / AC (direct current / alternating current) inversion module and is configured to invert the intermediate direct current voltage and output the intermediate direct current voltage into single-phase alternating current with different modulation wave frequencies; the controller is configured to control the modulation wave frequency of the second-stage conversion module; and the relay switching circuit is used for switching between the first output channel and the second output channel. Numerous other aspects are also disclosed. According to the device and the control method, the system architecture can be simplified, the aircraft space is saved, and the system integration degree and reliability are improved.

The invention provides a low-temperature surge tank adapting to pressure alternating load, and relates to the technical field of cryogenic pressure containers. The inner tank is arranged in the outer tank, vacuum is formed between the outer tank and the inner tank, a filling pipeline and a transfer filling pipeline penetrate through the outer tank to be communicated with the inner tank, a plurality of second supporting assemblies are arranged between the outer tank and the inner tank, and each second supporting assembly comprises an outer supporting seat arranged on the inner wall of the outer tank and an inner supporting seat arranged on the outer wall of the inner tank; and a supporting rod is connected between the outer supporting seat and the inner supporting seat. The device is used for storing low-temperature fluid with low-temperature and pressure alternating working conditions, adapts to pressure fatigue loads and is high in safety.

The invention relates to a tire pressure monitoring method and equipment. The method comprises the following steps: acquiring tire state data acquired by a sensing element; under the condition that the tire state data meets the tire pressure abnormal condition, a tire pressure abnormal notification is sent to a Bluetooth module so as to indicate that the Bluetooth module is in an idle state, responds to the tire pressure abnormal notification, is converted from the idle state to a broadcast state through a Bluetooth state machine and is converted to a communication state through the Bluetooth state machine after communication connection with external equipment is established; and sending the tire state data to the Bluetooth module so as to indicate the Bluetooth module to send the tire state data to external equipment when the Bluetooth module is in the communication state. The method can ensure the safety of the vehicle.

This invention relates to the field of power system technology, specifically to a method, apparatus, computer equipment, and storage medium for determining maintenance plans. In this invention, by analyzing power flow without considering maintenance plans, the number of integer variables in the maintenance plan is effectively reduced, thus reducing the column size of the maintenance plan model. Simultaneously, when the maintenance plan model has no solution, a linear relaxation model is constructed. Lagrange multipliers are used to identify maintenance branch variables that affect power flow exceedance limits. Furthermore, because the linear model solves quickly, its impact on overall computation time is negligible. For cases where branch exceedances cannot be eliminated, short-term and certain degrees of exceedances are allowed, constructing flexible limit constraints to improve the model's convergence.

The utility model discloses a reinforcing structure for changing a masonry wall into a beam column frame. The reinforcing structure comprises a newly-added frame beam, a newly-added frame column, a back-to-top frame body and a keel system. The jacking frame bodies are erected on the two sides of a to-be-dismantled masonry wall and are arranged along the whole length of the to-be-dismantled masonry wall, and the tops of the jacking frame bodies abut against the bottom face of an existing floor through a keel system. The newly-added frame beam is constructed at a beam body dismantling part of a masonry wall to be dismantled and is connected with the bottom surface of an existing floor, the multiple newly-added frame columns are constructed at multiple column body dismantling parts of the masonry wall to be dismantled respectively, and the tops of the multiple newly-added frame columns are connected with the newly-added frame beam to form a beam column frame structure; the bottoms of the newly-added frame columns located on the bottom layer extend to the position below the bottom plate, and the newly-added frame columns located on all the layers on the same vertical line are connected into a whole. The utility model relates to the technical field of building construction, and can solve the problems in the prior art that the safety of a building structure is influenced by dismantling of a masonry wall and the dismantling and reconstruction cost of the masonry wall and a floor is high.

The invention discloses an automobile drag reduction control method and system based on a follow-up wave generation device, and relates to the technical field of active flow control, and the method comprises the steps that an exciter array distributed in a master-slave partition mode is arranged based on a key pneumatic area of a target vehicle; acquiring vehicle state data and flow field state data of the target vehicle in real time; acquiring a time delay and a space-time trigger sequence based on the vehicle state data; acquiring an external modulation frequency and a duty ratio of the exciter array based on the flow field state data; a high-voltage electric signal conforming to time delay, a space-time trigger sequence, external modulation frequency and a duty ratio is generated to serve as a control instruction; the exciter array is controlled to generate plasma volume force based on the control instruction, a follow-up wave regulation and control flow field is formed, and the aerodynamic resistance of the target vehicle is reduced. Generation and development of separation vortexes are actively regulated and controlled, flow separation is delayed, and a wake flow area is reduced, so that aerodynamic resistance of an automobile under various running working conditions is remarkably and stably reduced, and the energy efficiency ratio is increased.