28results about How to "Reduce technical complexity" patented technology

The invention discloses a non-intrusive data information security management method and device. The method comprises the following steps: deploying database middleware between an application program and a database; the middleware manages database connection; the middleware receives an SQL request from an application program; the middleware analyzes the received SQL request; the middleware judges whether the SQL request contains a sensitive field needing to be specially processed or not; the fields are sensitive fields, and the middleware automatically applies an encryption and decryption algorithm; the modified SQL request is executed on a database so as to carry out data access operation; an execution result is returned to the application program, and the middleware decrypts the data; the Web interface provided by the middleware is used for configuring and managing encryption strategies, algorithms and secret keys; re-encrypting the existing data processed by using the old encryption scheme; and completing a data security management process. According to the method, access to sensitive fields is identified through the SQL analysis module, an encryption and decryption algorithm is automatically applied, and the safety of data in the transmission and storage process is guaranteed.

The invention discloses an SF6 electrification tendency determination method based on humidity variation. The SF6 electrification tendency determination method comprises the following steps: detecting a humidity value D1 of SF6 gas in a gas chamber; and mixing the SF6 gas with the SF6 standard gas with the humidity value of D'according to a set proportion. And detecting the humidity value D2 of the mixed gas obtained by mixing. And according to D1 and D ', calculating a humidity value D3 of the mixed gas under the condition of no electrification tendency. And according to the D2 and the D3, judging whether the SF6 gas has an electrification tendency or not. According to the method, based on the principle that SF6 <-> and H2O are combined after partial discharge, the SF6 gas humidity in the gas chamber is detected, and the variation of the actually measured humidity value and the theoretical value after the SF6 insulating gas and the SF6 gas with the certain humidity are mixed according to the fixed proportion is analyzed, so that the electrification tendency of the SF6 gas is obtained, and technical support is provided for distinguishing the partial discharge degree based on the SF6 gas humidity.

The invention provides a right-angle machine docking method and device based on a 2D laser radar, and relates to the technical field of positioning navigation, and the method comprises the steps: obtaining the 2D scanning data of the laser radar of a mobile robot in real time, clustering laser points, and screening a point set with the point number in a preset range. And determining a butt joint direction based on the screening point set, selecting a unique point set as a source point cloud of the right-angle side of the right-angle machine table, and generating a target point cloud. And the source point cloud, the target point cloud and laser radar external parameters are utilized to obtain a recognition pose, a predicted pose is obtained by combining speedometer speed information, and a current pose is determined and published. Finally, the mobile robot is controlled to be in butt joint with the right-angle machine table according to the released pose navigation. According to the invention, the high-precision lateral butt joint of the mobile robot and the working machine in a narrow channel application scene is realized only by depending on the shape characteristics of the machine and the laser radar sensor, and the space utilization rate is improved.

The invention discloses a motor-driven columnar vibrator suitable for subglacial lake drilling, and belongs to the field of polar subglacial lake drilling, an output shaft of an underwater motor rotates and drives a rotating part comprising a coupler, a cam transmission shaft and a cam to rotate synchronously with the rotating part, and the cam is a circumferential cam with a repeated curved surface; in the rotating process of the cam, the upper surface of the cam makes contact with the cam follower and pushes up a linear vibration component composed of a linear push rod, a vibration mass block, a cam follower installation frame, a spring base, a cantilever bearing and the cam follower, and in the process, a spring is compressed till the cam follower crosses the highest point of the curved surface of the upper surface of the cam; and the spring is released, so that the matching surface between the linear push rod and the frame top plate is impacted to generate vibration, and vibration force is transmitted to the frame bottom plate through the frame side plate to finish single impact. The radial size and the axial size of the vibrator structure can be saved to a great extent, so that the vibrator can be applied to small-diameter drilling.

The invention discloses a bidirectional quantum secret communication method for the Internet of Things, and relates to the technical field of quantum communication, in the method, two communication parties employ a device authentication module based on the quantum principle to mutually verify identities, and then a bidirectional information transmission module which does not need the participation of a third party is used for communication; wherein the bidirectional information transmission module takes a product of three Bell states as a quantum channel. According to the invention, through realizing equipment authentication and quantum communication without a third party, the communication security and efficiency of the Internet of Things are improved, the system complexity and communication interference are reduced, and the threat of quantum computing to the network security is effectively dealt with.

The invention relates to the technical field of computer security, in particular to a data storage method which comprises the following steps: S10, identifying and verifying data; the data identification and verification comprises data classification and data verification; s20, encrypting and storing the data; the data encryption storage comprises data encryption and data storage; and S30, a real-time behavior monitoring and tamper-proof mechanism. Through the combination of data encryption and decentralized storage, the risk of data leakage and tampering is effectively reduced; according to the method, symmetric encryption and asymmetric encryption technologies are reasonably combined, and decentralized storage is introduced, so that the calculation pressure in a traditional public key encryption storage scheme is reduced, and the storage efficiency is improved; a distributed storage and redundancy mechanism is adopted, so that the fault-tolerant capability of the system can be improved, and the influence of a single-point fault on data security is avoided; through a multiple backup and redundancy storage mechanism, it is ensured that data can be quickly recovered when attacked or lost.

The present invention discloses a method and device for automatically counting algae, which obtains multiple sub-videos, wherein the sub-videos are obtained by photographing the algae in the water sample flowing through the microfluidic chip through a microscope and a camera; the algae concentration displayed in each sub-video is calculated, and the real concentration of the algae in the water sample is calculated based on the algae concentration displayed in each sub-video. The present invention does not need to observe all algae samples, but only needs to observe samples of some algae, and the concentration of algae in surface water can be calculated according to statistical laws, which overcomes the disadvantage that a zoom camera cannot be used when collecting video.

This invention discloses a method, device, and medium for fusing network active detection and computing power perception, belonging to the field of computing power network and mobile communication technology. The technical problem this invention aims to solve is how to obtain computing power information consistent with network information during computing network information perception, thereby improving the consistency and efficiency of computing network information dissemination. The technical solution adopted is as follows: In a computing power network scenario, computing power information is carried through protocol extensions in network active detection requests and responses: the entry node sends a computing power query request to the exit node, and the exit node replies with the computing power query result to the entry node; the exit node maintains an edge computing power information database, and the computing power information requested by the entry node is searched in the edge computing power information database; when the computing power service information changes and the change exceeds a set threshold, the exit node is notified; the exit node updates the edge computing power information database and notifies the entry node, through independent messages or network perception messages.

The utility model belongs to the field of mechanical structure design, and provides a tractor buffering mechanism which comprises a connector (1), a movable steel sleeve (2), a front baffle (3), a buffering spring (4), a rear baffle (5), a screw (6), a lining (7), a blocking piece (8) and a nut (9). The front baffle (3) is welded to the foremost end of the trailer draw bar body, the rear baffle (5) is welded to the inner side of the middle of the trailer draw bar body, the two bushings (7) are symmetrically installed on the inner side of the front baffle (3) and the inner side of the rear baffle (5) through the screws (6), the two movable steel sleeves (2) are symmetrically installed on the bushings front and back, and the buffer spring (4) is arranged between the front baffle (3) and the rear baffle (5). The connector (1) penetrates through the front baffle (3), the buffer spring (4) and the rear baffle (5) from the front end of the trailer traction rod body and is fixed through the blocking piece (8) and the nut (9).

The invention belongs to the technical field of pollution gas optical remote sensing imaging detection, and particularly relates to a light dilution effect influence resistant sulfur dioxide concentration inversion method. A dual-channel original image is acquired through a dual-channel ultraviolet camera, and the final light intensity of dual channels is calculated by considering a light dilution effect and a camera system error; based on the final light intensity of the two channels, the optical thickness of the two channels and the difference and ratio of the optical thickness of the two channels are calculated; based on the optical thickness difference and the ratio of the two channels, establishing a correlation between the optical thickness difference and the ratio of the two channels and the concentration of SO2 under the conditions of different monitoring distances and different optical thicknesses of aerosol particles, and deducing a calibration spectrogram based on the correlation; and determining the SO2 concentration value matched with the actually measured optical thickness of the aerosol particles according to the actually measured optical thickness of the aerosol particles. The method has the advantages of being high in universality, high in real-time performance, easy to operate and the like, and an effective means is provided for remote sensing monitoring of SO2 gas.

The application relates to the fields of optics and fire rescue, and discloses a fluorescent conversion sheet with wavelength conversion function and a handheld smoke penetration imaging device. The fluorescent conversion sheet comprises, in sequence, a heat dissipation substrate layer, a mirror layer, a photonic crystal layer and a core-shell structure fluorescent layer. After short-wave near-infrared laser is incident, the core-shell structure fluorescent layer performs wavelength conversion; the mirror layer and the photonic crystal layer form an optical micro resonant cavity, and the unconverted laser is reflected back to the fluorescent layer for secondary conversion; and the heat dissipation substrate layer effectively suppresses the thermal quenching effect. The imaging device utilizes the fluorescent conversion sheet to efficiently convert the easily obtained short-wave near-infrared laser into middle-wave near-infrared laser with strong smoke penetration capability and safety to human eyes and emits the middle-wave near-infrared laser, and a receiving device containing a polarizer is used to image the target echo. Through systematic and synergistic optimization design, the conversion efficiency and thermal stability are greatly improved, excellent smoke penetration imaging effect is realized, and the safety and efficiency of fire rescue are improved.

The invention discloses a network active detection and computing power perception fusion method, equipment and a medium, belongs to the technical field of computing power networks and mobile communication, and aims to solve the technical problem of how to acquire computing power information conforming to network information, improve computing network information consistency and improve computing network information spreading efficiency during computing network information perception. According to the technical scheme, in a computing power network scene, in a network active detection request and response, computing power information is carried through protocol extension: an entry node sends a computing power query request to an exit node, and the exit node replies a computing power query result to the entry node; an edge computing power information database is maintained in the exit node, and the edge computing power information database is searched for computing power information requested by the entrance node; when the computing power service information changes and the change amplitude exceeds a set threshold value, an exit node is notified; and the exit node updates the edge computing power information database and informs the storage node through an independent message or a network awareness message.

The invention relates to the technical field of aircraft lightning test, and discloses a miniaturized aircraft lightning test fast charging device and method, the method comprising: initializing a system; obtaining a forward proportionality coefficient and a backward proportionality coefficient, and initializing a charging voltage value; starting a charging process, monitoring an actual charging voltage and an actual charging current in real time, and dynamically adjusting an increment of the actual charging voltage according to a calculation result through a control terminal; monitoring the fluctuation rate of current fluctuation during the charging process, and judging whether the current fluctuation is within an allowable range; judging whether an expected charging current value is reached; performing variable step length control on the actual charging current; recording monitoring information, and a charging and discharging device entering a standby state; voltage discharge, and realizing device discharge; and performing step S8 again until the device is completely discharged. The charging method of the invention can realize fast charging of capacitors of different lightning waveform generators of an aircraft, and the method is simple, the technical complexity is low, and the reliability is high.

The invention discloses a precious metal two-dimensional code processing method, and relates to the technical field of laser processing. According to the novel laser printing method, laser parameters (such as power, frequency and scanning speed) are optimized so as to adapt to jewelry materials such as different precious metals, gems and jades, damage to the materials is reduced, meanwhile, the definition and readability of two-dimensional codes and bar codes are ensured, a special printing process is adopted, and the printing efficiency is improved. For example, the material is pretreated before printing or is subjected to coating treatment after printing, so that the durability and the stability of the two-dimensional code and the bar code are improved. A self-adaptive printing algorithm is designed for materials in complex shapes, and it is ensured that the two-dimensional code and the bar code can be accurately printed on precious metal, gemstone and jade in various shapes and do not deform.

This invention discloses an axial focusing system, a three-dimensional scanning device, and a scanning method based on an acousto-optic deflector, belonging to the field of laser-related technology. The axial focusing system based on an acousto-optic deflector introduces a defocusing amount that changes with the deflection angle of the acousto-optic deflector through a prism. When the deflection angle of the acousto-optic deflector changes, the propagation distance of the beam in the axial focusing system is altered, thereby changing the effective focal length of the equivalent lens. The axial displacement of the beam waist position of the emitted beam changes according to the defocusing amount. Therefore, by adjusting the driving frequency of the acousto-optic deflector, the deflection angle of the beam by the acousto-optic deflector can be adjusted, thus changing the defocusing amount of the axial focusing system and achieving dynamic and rapid axial focusing of the laser.

The embodiment of the invention belongs to the technical field of detection, and relates to a test strip and a kit for detecting lung cancer autoantibodies and application, the test strip comprises a first colloidal gold test paper, a second colloidal gold test paper, a third colloidal gold test paper, a fourth colloidal gold test paper, a fifth colloidal gold test paper, a sixth colloidal gold test paper and a seventh colloidal gold test paper, a p53 protein gold marker and a p53 recombinant antigen are arranged on the first colloidal gold test paper; a PGP9.5 protein gold marker and a PGP9.5 recombinant antigen are arranged on the second colloidal gold test paper; an SOX2 protein gold marker and an SOX2 recombinant antigen are arranged on the third colloidal gold test paper; a GAGE7 protein gold marker and a GAGE7 recombinant antigen are arranged on the fourth colloidal gold test paper; a GBU4-5 protein gold marker and a GBU4-5 recombinant antigen are arranged on the fifth colloidal gold test paper; an MAGEA1 protein gold marker and an MAGEA1 recombinant antigen are arranged on the sixth colloidal gold test paper; and a CAGE protein gold marker and a CAGE recombinant antigen are arranged on the seventh colloidal gold test paper. According to the invention, instant detection is realized while the detection sensitivity is ensured.

The invention relates to the technical field of database architecture and management, and provides a database tool plug-in routing management method, which comprises the following steps of: dynamically distributing a globally unique namespace identifier for each functional plug-in; adding a namespace prefix for a front-end routing path of each plug-in according to the namespace identifier to realize centralized registration and life cycle management of routing; all application program interface requests are intercepted in a front-end communication link and a rear-end communication link, namespaces of corresponding plug-ins are automatically associated based on request paths, and standardized request and response processing flows including identity authentication and error processing are implemented; based on an event-driven architecture, an event bus supporting plug-in identifier tracking is established, and an event publishing and subscribing mechanism with context information is provided between plug-ins. According to the invention, routing conflicts can be eliminated, stable operation of the system is guaranteed, standardization of a communication process and centralization of management and control are realized, communication efficiency and consistency are improved, and plug-in development and system maintenance costs are greatly reduced.

This invention relates to the field of communication technology and discloses a data conversion method, apparatus, network management system, and storage medium. The data conversion method includes receiving data to be converted, the data being constructed based on a target YANG model and including target attribute information of the target YANG model; based on the target attribute information, searching for target YANG model mapping configuration information corresponding to the target YANG model from a preset YANG model mapping configuration file, wherein the preset YANG model mapping configuration file includes multiple YANG model mapping configuration information, each of which is configuration information mapping the corresponding YANG model to a corresponding Java model; and based on the found target YANG model mapping configuration information, using Java reflection mechanism, converting the data to be converted into a Java object. This invention can efficiently and flexibly convert YANG model data into Java data.

The present application discloses a method, system, device and medium for preventing bullying in schools, which relates to the technical field of behavior analysis. The method comprises: collecting first scanning data of a target area, and judging whether the number of people gathered in the target area is greater than a preset value based on the first scanning data. If so, collecting voice data of the target area, and synchronously collecting second scanning data of the target area; judging whether there are preset bullying words in the voice data, and if so, performing voice analysis on the voice data to obtain corresponding voice analysis results; the voice analysis results include bullying text, semantic information and voice category; performing behavior recognition on the second scanning data to obtain corresponding abnormal behavior; judging whether bullying occurs based on the voice analysis results and the abnormal behavior, and if so, generating early warning information based on the bullying text and the abnormal behavior. The present application has the effect of solving the problem of privacy infringement.

The invention discloses a downhole suspended weight measuring device for hot water drilling tools, belonging to the field of polar ice layer drilling technology. In the downhole suspended weight measuring device for hot water drilling tools, at least three high-pressure hoses arranged in a spiral shape are sealed and connected between the water-combining tank and the water-dividing tank. At the same time, underwater weighing sensors arranged evenly at intervals around the central axis of the entire downhole suspended weight measuring device for hot water drilling tools are arranged between the water-combining tank and the water-dividing tank. One end of all underwater weighing sensors is connected to a first lifting eye bolt installed at the bottom of the water-dividing tank through a first cable, and the other end is connected to a second lifting eye bolt installed at the top of the water-combining tank through a second cable; the core tube of the hot water drilling tool is sealed and connected to the bottom of the water-combining tank, and the two are coaxially arranged and internally connected. The device proposed by the invention can be arranged on the downhole drilling tool to avoid the problem of large error in measuring the suspended weight of the drilling tool at the bottom of the hole caused by a large proportion of the suspended weight of the high-pressure hose and a small proportion of the suspended weight of the drilling tool when measuring the suspended weight of the drilling tool.

The invention discloses a camera-based full-width film detection device, and relates to the technical field of film detection devices.The camera-based full-width film detection device comprises a bottom frame, a bottom plate is arranged in the bottom frame, a programmable logic controller, a guide rail and a servo motor are arranged on the upper surface of the bottom plate, and the programmable logic controller is used for controlling the servo motor to rotate forwards and backwards; a guide rail is arranged on the base, a sliding base is slidably arranged on the guide rail, a guide wheel is arranged on the lower surface of the sliding base and rolls in the long side direction of the sliding base, the output end of the servo motor is connected with a lead screw, the lead screw penetrates through the interior of the sliding base, and a camera is arranged on the sliding base. The camera collects a full picture of the thin film through left-right movement of the sliding base, and the camera captures the picture through an upper computer connected to the output end of the camera in an uploading mode. The method has the effect of effectively and comprehensively detecting the surface of the whole object in real time.

The invention belongs to the technical field of rocket recovery, and discloses an unmanned aerial vehicle group capture type rocket sublevel air recovery method and device and a storage medium. The method comprises the following steps: an unmanned aerial vehicle group hovers in the air, executes global search, and covers a whole rocket sub-level recovery task area; adjusting flight parameters of the unmanned aerial vehicle in real time according to ephemeris and attitude information of the rocket sub-level, accurately locking a target, and encircling at an optimal capture point; the flight state of the unmanned aerial vehicle is changed from a circling mode to a diving mode, and the unmanned aerial vehicle dives rapidly to approach the rocket sublevel to form a precise capture trajectory; path planning and action management are carried out, and a capture task is completed under the condition of minimum energy consumption; and performing performance evaluation on the whole recovery process, and analyzing indexes such as capture percentage, energy consumption and time efficiency of the task. According to the invention, the dependence on a specific landing area is reduced, so that the recovery of the rocket sublevel can be carried out in a wider airspace, and the flexibility and applicability of operation are improved.

The application discloses a photovoltaic power station, comprising a photovoltaic string, the photovoltaic string is at least two rows arranged in a first direction, at least one end of the adjacent two rows of photovoltaic strings is connected through an arc-shaped track switching rail, the arc-shaped track switching rail is configured to cooperate with the walking mechanism of a photovoltaic cleaning robot; the photovoltaic string comprises a cable structure flexible support and a plurality of photovoltaic components supported on the cable structure flexible support, and the arc-shaped track switching rail comprises an inner ring track and an outer ring track respectively connected with two side frames of the photovoltaic components arranged in the first direction. The arc-shaped track switching rail of the application creates a continuous and barrier-free walking channel for the photovoltaic cleaning robot. The inner ring track and the outer ring track are curves, allowing the photovoltaic cleaning robot to turn more smoothly and more energy-efficiently, reducing stuttering, wear and energy loss. The photovoltaic cleaning robot can automatically cross the rows without relying on a ferry car, reducing the cross-row cost, cross-row risk and improving the cross-row efficiency.

A method of characterizing a resonator element (102) is provided herein. The method includes providing a laser light having a tunable carrier frequency, and coupling at least a first portion of the laser light into a resonator element (102) having a plurality of carrier resonances (3000) for the carrier frequency of the laser light, where adjacent carrier resonances (3000) are spaced from each other in the spectral domain at a free spectral region (FSR). The method further comprises modulating the intensity and / or phase of the portion of the laser light coupled into the resonator element (102) with a first modulation frequency (1001) and a second modulation frequency (1002), thereby producing, for each carrier resonance (3000), at least two sideband resonances (3001) separated by the first modulation frequency (1001) from the corresponding carrier resonance (3000), and generating at least two sideband resonances (3002) separated from the corresponding carrier resonances (3000) by a second modulation frequency (1002), where the first modulation frequency (1001) and the second modulation frequency (1002) are different from an integer multiple of the free spectral region and are different from each other. Furthermore, the method comprises tuning the carrier frequency of the laser light at a predetermined tuning rate, and measuring the intensity of the laser light transmitted and / or reflected by the resonator element (102) while tuning the carrier frequency. Further, the method includes measuring a tuning time to tune the carrier frequency through the four adjacent sideband resonances, the tuning time corresponding to a tuning time required to change the tunable carrier frequency from a value corresponding to a first one of the four sideband resonances (3001, 3002) to a value corresponding to a last one of the four sideband resonances. Furthermore, the method comprises determining an interval between a plurality of carrier resonances (3000) in the spectral domain from a measured intensity of the laser light transmitted and / or reflected by the resonator element (102) and using the first modulation frequency (1001), the second modulation frequency (1002) and a measured tuning time to tune the carrier frequency through four adjacent sideband resonances (3001, 3002).

The invention relates to an audio device with filtering based on head orientation and a related method. An audio device comprising a first audio wearable device adapted to be worn at a first ear of a user and a second audio wearable device adapted to be worn at a second ear of the user, the first audio wearable device comprising a first output transducer, a first wireless communication interface, one or more first processors, and a first memory, the first audio wearable device is configured to: obtain a first audio signal via the first wireless communication interface; obtaining head orientation data indicative of a head orientation of the user; determining a first filter based on the head orientation data, where the first filter is compensated based on a first delay and / or a first level; a first filter is applied to the first audio signal to compensate for the head orientation of the user for providing a first filtered audio signal, and the first filtered audio signal is output at the first audio wearable device.

The invention provides a mechanism data sharing system and method based on a block chain. The system comprises an institution subsystem and a block chain network, the mechanism subsystem is used for determining original data and a data access API which need to be shared; generating metadata; the metadata and the data access API are packaged and transmitted to the block chain network through the own data sharing gateway; the block chain network is used for performing on-chain storage on metadata and a data access API (Application Program Interface) and providing a retrieval interface; the retrieval interface is used for querying metadata and data access API which meet retrieval conditions from the chain, and returning a query result to the user; a user sends a data acquisition request to the data sharing gateway; and the data sharing gateway is used for querying the corresponding original data from the original data storage system of the mechanism subsystem and transmitting the queried original data to the user. A large amount of original data does not need to be stored in the block chain network, and acquisition of the original data is not affected even if the reading capability of the block chain network is low.

The invention provides a short-term wind power plant power prediction method and device, equipment and a medium, and belongs to the technical field of wind power data processing. The method comprises the steps of obtaining a predicted wind speed and a wind direction angle of a target height of a wind power plant, classifying and identifying the wind direction angle, and determining a time category and a wind direction category; after correcting the abnormal wind speed, calculating the total power at each moment by using a wind speed-total power curve, and calculating the average ratio of the power at each moment to the total power according to the wind speed and wind direction categories; and the wind power at each moment is obtained through product, and power prediction of the wind power plant is realized. According to the method, higher prediction precision and a finer time scale are realized by focusing on generation power prediction of the wind power plant in a specific time period and utilizing a simple statistical method and an empirical model, meanwhile, the technical complexity is reduced, and the operation efficiency of the wind power plant is remarkably improved.

This invention discloses an electronic steering system, control method, and grader in the field of electronic steering control technology, aiming to solve the technical problems of poor redundancy and poor safety. It includes: a solenoid valve steering unit and an electronic steering unit (one hydraulic, one electric), which improves the control redundancy of the steering cylinder's steering stroke for the steering signal controller; a hydraulic steering pump and an electric steering pump (one hydraulic, one electric); and an intermediate valve connected to one of them to improve the power redundancy of the electronic steering system. The steering signal controller improves safety by judging the pressure of the intermediate valve and selecting the steering pump. When calculating the target steering angle, the interconnection, signal connection, and control relationship of the solenoid valve steering unit, electronic steering unit, steering signal controller, hydraulic steering pump, electric steering pump, and intermediate valve are interconnected, improving the safety and redundancy of controlling the steering stroke using the steering control device.