106 results about "Current technology" patented technology

The invention provides a curved surface detection method and device for an ergonomic chair back and a storage medium, and relates to the technical field of irregular surface detection. Comprising the following steps that S1, a plurality of detection units abutting against the curved surface of the chair back are provided, and each detection unit outputs pressure according to the height of the curved surface; s2, the multiple detection units are adjusted to be in a standard state, and in the standard state, each detection unit abuts against the curved surface of the standard chair back; s3, enabling the plurality of detection units to abut against the curved surface of the chair back to be detected so as to output and upload pressure; and S4, processing the uploaded pressure, and judging whether the curved surface of the to-be-detected chair back is qualified or not. According to the application, the plurality of local pressures of the curved surface of the chair back are detected in combination with the plurality of detection units, the curved surface bending shape of the chair back can be accurately detected and whether the curved surface of the chair back is qualified or not can be judged by analyzing and processing the plurality of local pressures, and the technical deficiency in the aspect at present is made up.

The current technology involves a process of determining the likelihood of a received electronic communication to a first user being malicious by a content inspection service. If the communication is deemed suspicious, it will be directed to a generative artificial intelligence (AI) tool for engagement. All subsequent communications in the same thread will also be directed to the AI tool unless the first user explicitly requests control over the thread. The AI tool will then respond to the suspicious communication while posing as the first user, but without revealing any confidential information. This process helps to prevent potential attacks by remvoing the thread of malicious communications.

The invention provides a hotspot technology mining method and system based on scientific and technological literature data, and relates to the technical field of scientific and technological information mining, and the method comprises the steps: firstly obtaining a scientific and technological literature data set containing papers and patent literatures, and constructing a current technical element network through technical phrase extraction and semantic normalization processing; dividing the technical element network segment into a time-serialized technical element network segment set according to time slices, calculating nodes and edge time sequence importance indexes to judge an emerging technical cluster, carrying out dynamic graph representation learning and future associated edge prediction on the set, generating a potential technical combination prediction set, and evaluating the potential technical combination prediction set; and finally, generating an emerging technology theme list and a technology fusion direction list in combination with an emerging technology cluster node growth trend and a prediction association edge evaluation result, thereby improving the accuracy, comprehensiveness and foresight of hotspot technology mining.

The invention relates to a three-dimensional visual synthesis system based on heterogeneous collaboration and screen alignment fusion, which is characterized in that a master control system generates complete viewpoint configuration information of a current scene acquired by an image acquisition device, and the complete viewpoint configuration information is used as a single data source and is simultaneously distributed to a graphic processing unit and a neural rendering coprocessor of the master control system; synchronous starting and parallel execution of the two heterogeneous rendering pipelines are achieved. And in combination with a subsequent screen alignment fusion mechanism, an end-to-end collaboration framework with low delay, low coupling and high coordination is constructed, and the key problem of real-time integration of high-fidelity contents is effectively solved. On the premise of not depending on a traditional deep buffer area or geometric alignment, high-fidelity visual content generated by special hardware acceleration and a dynamic environment of a main control system are efficiently fused, and complex effects such as lightweight asynchronous communication and real-time shadow are supported. Therefore, multiple bottlenecks in the aspects of real-time performance, compatibility and engineering deployment in the prior art are broken through.

At present, in the prior art, a mechanical type cannot accurately control temperature, but a semiconductor type needs to dissipate heat, the service life of a semiconductor power tube is influenced by long-time overheating, and a temperature adjusting mode of an existing electric food warmer is fixed increment and decrement each time, so that contradiction is generated between rapid adjustment and accurate adjustment. According to the electric food warmer, the temperature controller in a mechanical mode and the thermal power execution device are connected in series to play a role in double-insurance overheating protection, meanwhile, semiconductor and relay dual-mode control is added, the maximum current with the maximum power is distributed to the relay, the power burden of a semiconductor power tube is reduced, and the service life of the electric food warmer is prolonged. And the multi-level automatic increment change of the knob and the temperature increase and decrease amount switching of the knob are realized.

The invention discloses a high-yield and low-carbon-deposition regulation and control method and system for a continuous regenerative catalytic reforming reaction. The method comprises the following steps: at the beginning, setting a weighted average inlet temperature for the four-in-one reforming reactor and setting an inlet temperature of each bed layer; measuring the content of naphthenic hydrocarbon in naphtha to be added at the beginning, and setting the initial average pressure of the four-in-one reforming reactor according to the content of naphthenic hydrocarbon in naphtha to be added; naphtha is added into the four-in-one reforming reactor for a reaction; in the reaction process, the weighted average inlet temperature of the four-in-one reforming reactor, the inlet temperature of each bed layer, the catalyst circulation rate and the average pressure are regulated and controlled in real time; and ending the experiment. The method breaks through the critical path of the current technical bottleneck, and has important significance for improving the product selectivity of the continuous regeneration catalytic reforming process, reducing the energy consumption and prolonging the service life of the catalyst.

The utility model relates to a food quality detection device which comprises a first path, a second path and a third path, and an object to be detected passes through the first path, the second path and the third path in sequence; the first path is provided with a detection part, and the second path is in linkage fit with the detection part and forms releasing or resetting. Through cooperation of the three paths, after the packaging bags are scanned and detected, the unqualified packaging bags can fall off from the middle of the conveying line, and the qualified packaging bags are directly conveyed to the tail end of the conveying line, so that automatic sorting of the qualified packaging bags and the unqualified packaging bags is completed; compared with the prior art, the detection efficiency can be effectively improved.

In order to overcome the problem that the current technology is difficult to estimate and continuously correct the bridge twin model by obtaining a series of test and test data, the application provides a bridge twin dynamic model Fourier modeling method based on test data, which is only related to the parameters of the bridge according to the system matrix related to all nodes of the bridge and the observation coefficient matrix related to all nodes, and the first continuous test process of the bridge does not change greatly, and the first comprehensive detection of the bridge twin dynamic mathematical model and the subsequent each time of the bridge twin dynamic mathematical model comprehensive correction process is relatively short, according to the characteristics of the fast and slow change matrix, the slow change matrix is set as a constant matrix in the first continuous test, and the system matrix related to all nodes of the bridge and the observation coefficient matrix related to all nodes in the bridge twin model are established through a series of effective tests and optimal indexes, and the bridge twin model is continuously corrected in the whole life cycle of the bridge, so that the technical problem of estimating and improving the bridge vibration model by obtaining a series of test and test data is solved.

The application provides a knowledge recommendation method and system for technical problems in spacecraft assembly sites, comprising: constructing an organization model of technical problem knowledge instances and technical problem scenes; obtaining historical technical problem information in a database, compiling the historical data according to the organization model of the technical problem knowledge instances and the technical problem scenes, forming a technical problem knowledge instance library and a problem scene set; subject modeling on text data in the problem scene to obtain a scene subject vector of each knowledge instance; screening key attributes in the knowledge instance based on the scene subject vector, and combining the scene subject vector to form a technical problem feature vector; identifying a current technical problem scene, and vectorizing the current problem scene based on an existing subject model and a coding rule to perform knowledge recommendation. The application solves the problems of difficult prediction of current technical problems in spacecraft assembly sites and difficult application of existing knowledge recommendation methods.

The present application provides a communication method, an apparatus, and a system. The method comprises: acquiring a sensing signal, the sensing signal being used for sensing a target object, the sensing signal being carried on a first resource, and a time domain resource of the first resource using an orthogonal frequency division multiplexing (OFDM) symbol, a time slot, a half-subframe, a subframe, a frame, or preset time as the granularity. In this case, the granularity of the time domain resource of the first resource is consistent with the granularity of time resources in existing technologies, so that the first resource can share a time resource division system with existing technologies, thereby aligning a start position and an end position of a sensing resource with those of a communication resource.

The invention relates to enhanced image capturing devices and to enhanced image producing devices so that they can capture and produce 3D images without the need for the viewer to wear any equipment. The proposed solution is inspired by ray optics, geometry, mirrors, diamond cut, eyes, rods and cones of the human eye, and the design of the retina of the human eye. It does not "deceive" the eye and the brain, it does not manipulate the image to produce a 3D effect as the current technology does. The invention describes how to change the light sensors and light emitters and their layout in imaging devices like cameras and TV screens to capture and produce 3D images, regardless of whether directional information can be captured by the image sensors and emitters.

This invention relates to the field of gas pressure regulating device testing and discloses a comprehensive experimental system for the evolution of quality defects in urban gas pressure regulating devices. Compared to current technologies that only study the evolution of quality defects in gas pressure regulating devices from a single perspective, resulting in incomplete research, this application uses vibration and fatigue simulation devices to transmit vibration and mechanical loads to the gas pressure regulating device. A gas source drives solid particles injected by an erosion simulation device and corrosive media injected by a corrosion simulation device. The gas pressure regulating device is repeatedly eroded through a loop pipeline, replicating the process where vibration during production accelerates the shedding of corrosion products and surface hardened layers, exposing fresh metal surfaces and intensifying corrosion. Simultaneously, the detached particles become new abrasive materials, further exacerbating material loss—a vicious cycle. By collecting relevant data during the experiment, a comprehensive experimental study of the evolution of quality defects in gas pressure regulating devices is achieved.

The application relates to the technical field of vehicle chassis, and provides a rear suspension control arm and a vehicle. The rear suspension control arm comprises a control arm body, a bottom plate and two side walls arranged on the two sides of the bottom plate and oppositely arranged, a spring tray connected to the two side walls, and a central boss for positioning a spring, the spring tray being used for supporting the spring. The rear suspension control arm is provided with the spring tray connected to the two side walls of the control arm body, so that the spring tray can support the spring, can also serve as a reinforcing piece to improve the structural strength of the rear suspension control arm, compared with the reinforcing piece in the form of surrounding the spring in the current technology, the distance between the spring tray and the shock absorber can be increased, and there is no gap between the spring tray and the spring in the circumferential direction of the spring, so that the abnormal sound problem can be improved.

This invention discloses a method and system for tracing stray currents in new energy systems, belonging to the technical field of stray current technology in new energy systems. The method for tracing stray currents in new energy systems provided by this invention generates spectral fingerprints by using Fast Fourier Transform (FFT) on high-frequency stray current component A and low-frequency stray current component B, and extracts long-time and short-time fingerprints by wavelet decomposition on very low-frequency stray current component C. This establishes a stray current spectral fingerprint database, a stray current long-time fingerprint database, and a stray current short-time fingerprint database, forming a multi-dimensional feature database. Based on correlation judgment results and combined with external meteorological data, this method achieves rapid tracing of known interference sources and continuously improves the multi-dimensional feature database through an automatic update mechanism. Furthermore, incorporating external meteorological data into the judgment process can distinguish between stray currents caused by natural factors and equipment failures, improving the accuracy of tracing.

The present disclosure provides a close distance coal seam upper mining and lower tunneling method, device, electronic equipment and storage medium, the method comprising: acquiring first working face data, second working face data and coal seam data; based on the first working face data, the second working face data and the coal seam data, the shortest critical stopping distance is calculated by numerical simulation method; when the horizontal distance is less than the shortest critical stopping distance, the coal mining operation of the upper coal seam working face is stopped until the tunneling operation face and the stopping operation face are horizontally flush, and the coal mining operation of the upper coal seam working face is restarted. By collecting the working face data of the upper coal seam working face and the lower coal seam tunneling working face, and calculating the shortest critical stopping distance by numerical simulation method, compared with the shortest critical stopping distance by empirical value in the current technology, the shortest critical stopping distance calculated in the present disclosure is more accurate and more suitable for the current target close distance coal seam, which is beneficial to ensure the stability and safety of the surrounding rock of the tunneling roadway.

This invention relates to the field of oil and gas exploration technology, and discloses a method for determining the lower limit depth of sandstone reservoir exploration based on diagenetic evolution constraints. Based on the measured porosity, permeability, and corresponding measured depth of sandstone of different lithologies within the study area, compaction evolution equations and permeability evolution equations for each lithology are fitted and constructed according to the diagenetic evolution mechanism. The economic lower limit of stable daily production per well is determined according to the economic evaluation of oil and gas development in the study area. Based on oil testing data, quantitative relationships between production capacity and porosity, and between production capacity and permeability are established. The economic lower limit is converted into corresponding lower limits of reservoir porosity and permeability, which are then substituted into the compaction evolution equations and permeability evolution equations for each lithology to obtain the lower limit depth of exploration for that lithology using current technology. This invention reveals the evolution law of reservoir properties with depth for different lithologies from a genetic perspective, organically coupling economic and technical conditions with geological laws to achieve accurate and differentiated prediction of the lower limit depth of exploration.

The invention discloses a data interaction request anomaly detection method and device and a nonvolatile storage medium. The method comprises the following steps: determining a plurality of mark points on a data interaction path of target storage equipment; when a target storage device receives a real-time data interaction request, respectively obtaining moments for triggering a plurality of mark points, triggering stage identifiers of the plurality of mark points, and obtaining a plurality of timestamps and stage identifiers corresponding to the plurality of timestamps; calculating respective delay time of the plurality of data interaction stages based on the plurality of timestamps and the stage identifiers corresponding to the plurality of timestamps; respectively judging the respective delay time of the plurality of data interaction stages and the respective preset delay time threshold of the plurality of data interaction stages; and determining the data interaction stage of which the delay time is greater than a preset delay time threshold as an abnormal interaction stage. According to the invention, the technical problem that high-precision and low-overhead monitoring of input / output delay faults is difficult to realize in the prior art is solved.

The invention discloses a robot multi-mode perception fusion method and system for precise assembly, and relates to the technical field of robot control and intelligent perception. According to the method, a visual mode initial perception result and a force sense mode initial perception result are mapped to the same semantic feature space, and the feature distance is calculated; generating a cross-modal semantic consistency score, and then based on the cross-modal semantic consistency score and an assembly stage, fusing a visual modal initial perception result and a force sense modal initial perception result by adopting a three-mode discrete switching strategy dominated by a cooperation, a mixture or a single mode to generate a fused perception result; and finally, according to the cross-modal semantic consistency score and the fusion perception result, generating a robot assembly control instruction. The problems that in the prior art, perception conflicts are difficult to process effectively, and the fusion strategy is single are solved, and the operation reliability and precision of the robot in the complex assembly environment are remarkably improved.

The utility model discloses an environment-friendly refrigerator for an air conditioner, which relates to the technical field of air conditioner refrigerators, solves the technical problems that air cannot be guided quickly and the cooling effect cannot be improved in the existing technical scheme, and comprises a mainframe box and an air conditioner evaporator, a compression circulation structure is arranged in the main machine box, the output end of the main machine box is connected with a liquid phase pipe, the liquid phase pipe is connected to the input end of an air conditioner evaporator, the output end of the air conditioner evaporator is connected with an air suction pipe, and the air suction pipe is connected to the compression circulation structure. According to the environment-friendly refrigerator, through an optimized vaporization heat dissipation structure and an optimized compression cycle structure, refrigeration can be more effectively achieved, the cooling effect of an air conditioner is improved, and the problems that in the prior art, air cannot be guided rapidly, and the cooling efficiency is low are solved; and by adopting a novel structural design, the energy consumption is reduced, and the influence on the environment is reduced.

The invention discloses a concrete production process and concrete, belongs to the field of concrete preparation, and aims at solving the problems that in the prior art, a fixed formula is mostly designed for single performance, the performance cannot be flexibly adjusted according to different engineering scenes, the applicability is limited, and special intermediates are lacked for component integration and pre-dispersion. The method for preparing the concrete comprises the following steps: preparing an intermediate, pretreating basic raw materials, weighing the pretreated cement, the solid waste low-carbon material and the aggregate according to the proportion, putting into a stirrer, stirring to obtain a basic mixture, mixing the prepared intermediate with mixing water, and uniformly stirring to obtain the concrete. And adding the intermediate slurry and the residual mixing water into the basic mixture to obtain the concrete mixture. By adjusting the mixing amount of the intermediate and synergistically proportioning the basic materials, the customized regulation and control of the concrete performance are realized, and the defects of single performance regulation and control and limited applicability in the prior art are effectively overcome.

The invention relates to a method for determining the batch size of distributed heterogeneous data in the medical industry, belongs to the technical field of medical information processing, and solves the problem that the data comparison efficiency and the stability of a source database system cannot be effectively balanced in the prior art. The method comprises the following steps: collecting current state information of a source system, and constructing a cue word input large model based on the current state information to obtain a suggested batch size, a risk level and a confidence coefficient; determining a current decision based on the risk level and the confidence; if the current decision includes an attenuation decision, attenuating the suggested batch size to obtain a final batch size; if the current decision contains exploration, optimizing the suggested batch size based on a reinforcement learning model to obtain a final batch size; and if the current decision contains the adoption suggestion, taking the suggested batch size as the final batch size. And the data comparison efficiency and the stability of a source database system are effectively balanced.

The present application relates to the technical field of defect identification, and discloses a heat exchanger pipe hole inner surface detection method and system, compared with the current technology, manual operation is needed to control the extension and retraction of the endoscope, and the defect identification relies on manual experience, which causes waste of human resources, by using the technical solution, the movement of the endoscope in the pipeline is controlled through the push pull device, the shooting is started and the winding action is performed when the endoscope is deep into the pipeline to a certain extent, the integrity and comprehensiveness of shooting are ensured. After the shooting image is obtained, the image is subjected to defect identification through a preset algorithm, so that the shooting and identification of the inner surface of the heat exchanger pipeline are realized without manual intervention, the waste of human resources is avoided, and the subjective deviation existing in manual review is avoided through algorithmic defect identification, and the identification accuracy is improved.

This invention provides a medium-oxygen weathering steel and its preparation method, belonging to the field of weathering steel production technology. The chemical composition of the medium-oxygen weathering steel includes: C, Si, Mn, P, S, Cr, Cu, Ni, O, and Fe; by mass fraction, the content of C is 0.08%–0.10%, the content of Si is 0.30%–0.50%, the content of Mn is 0.50%–0.65%, the content of P is 0.08%–0.10%, the content of S is ≤0.005%, the content of Cr is 0.40%–0.55%, the content of Cu is 0.30%–0.45%, the content of Ni is 0.10%–0.40%, and the content of O is 0.005%–0.012%. The oxygen content is increased from below 0.003% in ordinary weathering steel to the range of 0.005-0.012%, resulting in silicate inclusions that are more stable and less prone to corrosion. Furthermore, some silicon-manganese-aluminum oxides form composite inclusions with MnS, causing the MnS inclusions to change from long strips to short strips, thus inhibiting corrosion propagation. As a result, the corrosion rate of medium-oxygen weathering steel is reduced by more than 18%, making it suitable for more severe corrosive environments and solving the problem of poor corrosion resistance of ordinary weathering steel in current technologies.

The application provides a power grid technology supervision strategy determination method, device, equipment and storage medium. The method comprises the following steps: obtaining operation condition information of a target business object based on a pre-constructed technology supervision evaluation model; wherein, the state quantity of the technology supervision evaluation model comprises at least one of a current business evaluation result, a subsequent business evaluation result, a last period technology supervision evaluation result, an operation condition scoring evaluation result and a technology standard applicability feedback evaluation result; determining a technology supervision evaluation result of the target business object according to the technology supervision evaluation model and the operation condition information; and determining a technology supervision strategy of the target business object based on the technology supervision evaluation result of the target business object. The application can provide an effective technology supervision implementation strategy for the new power grid technology supervision concept, and avoids the blindness of the current technology supervision.

The utility model discloses a kind of wire diameter detection devices of braider, including rack, detection support is fixedly installed on the rack, detection module is fixedly installed on the detection support, the detection module includes first guide component, second guide component and detection component sequentially arranged from bottom to top, the wire diameter detection device of the utility model braider is monitored in real time by integrated guide structure and multiple probe, effectively solve the problem that current technology is difficult to automatically detect flaw, leading to affect product yield, first guide hole and second guide hole alignment ensure that wire material vertical stable pass, and multiple probe components evenly distributed in circumference can scan rope belt full cross-section wire diameter in real time, when detecting uneven weaving, broken wire or diameter out-of-tolerance and other flaws, system can immediately trigger automatic stop, avoid flaw product to be involved into finished product, significantly improve product yield, more from source to prevent terminal safety accident caused by hidden flaw flowing into secondary processing link.

The invention relates to the technical field of ship power system control, and discloses a marine main engine lubricating oil temperature intelligent control method, device and equipment based on seawater temperature and main engine operation power self-adaption and a medium. Compared with the prior art, the problem that in the prior art, control over the temperature of lubricating oil is only based on the deviation between the temperature of the lubricating oil at an outlet of a lubricating oil cooler and a set value, interference of other factors exists, and consequently temperature control is inaccurate is solved. And the control quantity is corrected through the host operation power, and the adjustment quantity of the valve opening degree is determined according to the influence of the host operation power on the lubricating oil temperature. In addition, the influence of the seawater temperature on the cooling effect is considered, the valve opening is adjusted according to the seawater temperature, on the basis that the valve opening is controlled according to the outlet lubricating oil temperature, the host operation power and the seawater temperature serve as feed-forward variables, the control quantity is corrected, and the adaptability and accuracy of temperature control are improved.

The utility model relates to the technical field of machining of mechanical parts, in particular to a cooling device for machining and production of mechanical parts, and solves the problem that the parts cannot be uniformly cooled due to the lack of an effective clamping and fixing structure in the prior art. A mechanical part machining and production cooling device comprises a cooling box body, a cooling cavity is formed in the cooling box body, a cooling assembly is arranged in the cooling cavity, and the cooling assembly comprises a second fan, a semiconductor refrigeration block, a first heat conduction copper block, a second heat conduction copper block, a moving rod, a clamping table, a clamping strip and a first limiting sliding groove. According to the cooling device, through refrigeration and transmission of the semiconductor refrigeration block and the first heat conduction copper block, the trapezoidal sliding block moves between the clamping strips to drive the clamping strips and the clamping heads to clamp parts, the cooling efficiency of the parts can be effectively improved, meanwhile, the parts can be clamped and fixed, and the cooling efficiency of the parts is improved. Therefore, the temperature of the part is reduced more uniformly, and the cooling safety of the part is improved.

The invention discloses a data processing system and method based on power edge calculation, and relates to the technical field of power edge calculation, and the system comprises a power transformation information monitoring module, a power transformation edge data analysis module, a power distribution information obtaining module, a power distribution edge data analysis module, a power transmission information monitoring module, a power transmission edge data analysis module and an early warning terminal. The invention provides a data processing system based on electric power edge calculation, which divides a power grid according to regions, further analyzes coefficients corresponding to each node of a power transformation region, a power distribution region and a power transmission region in different servers, and judges to obtain equipment states corresponding to each node of the power transformation region, the power distribution region and the power transmission region in the different servers. Therefore, adjustment parameters, adjustment modes and equipment adjustment corresponding to each node in the power transformation area, the power distribution area and the power transmission area in different servers are obtained through screening, comprehensive monitoring of the power through the edge computing technology is achieved, comprehensive power operation guarantee is achieved, and the defects existing in the prior art are overcome.

In the current technology, as the wafer size is reduced, how to more accurately evaluate the variation of the critical dimension and accordingly reduce the deviation of the critical dimension is an important issue in the field. Therefore, the present disclosure provides a measurement method and a photolithography process control system. The photolithography process system is used to perform the following steps. Calculate the deviation value between the peripheral critical dimension and the central critical dimension of each exposure area of a portion. Determine whether the deviation value of each exposure area of the portion is within a deviation interval. If the deviation value of each exposure area is within the deviation interval, evaluate the variation amount of the deviation in the main deviation direction of one of the exposure areas, and adjust the parameters of the mask according to the variation amount of the deviation in the main deviation direction of the exposure area, so as to reduce the deviation of the critical dimension.

This invention discloses a method for full-coverage path planning of unmanned aerial vehicles (UAVs) that integrates a greedy strategy and the A* algorithm. It belongs to the technical field of full-coverage path planning, and its operation steps are as follows: First, initialize the map and obstacles, and define marker quantities; second, evaluate the attributes of surrounding points and use a greedy strategy to select the next point; then, determine whether a dead zone has been entered. If so, use the A* algorithm to replan a path to escape the dead zone; if not, continue using the greedy strategy to find the next forward point; next, check the coverage completion status, checking whether each point is covered; finally, verify the effectiveness of the full-coverage traversal algorithm in a 3D environment. This invention solves the problems of low efficiency, low coverage rate, high repetition rate, and limitations in complex environments of current technologies when dealing with full-coverage traversal inspections, detections, and cleaning in chemical industrial parks and coal mines, as well as agricultural plant protection.