179 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 utility model belongs to the field of laser application, and relates to beam shaping of a laser, in particular to a small-divergence-angle laser based on a beam shaping technology. The problems that in the prior art for laser diode collimation, astigmatism of the diode cannot be calibrated through single-lens collimation, and cost is increased due to the fact that fast axis collimation and slow axis collimation need to customize a fast axis collimating lens with a proper focal length are solved. The utility model discloses a small-divergence-angle laser based on a beam shaping technology. A first collimating lens, a fast-axis beam shrinking device and a beam expander are sequentially arranged on an emergent light path of a first laser diode; the light emitting point of the first laser diode is located at the focal point of the first collimating lens, the fast axis beam shrinking device comprises a first cylindrical lens and a second cylindrical lens, and the focal points of the first cylindrical lens and the second cylindrical lens coincide. According to the utility model, the divergence angle of the laser diode is reduced to 0.1 mrad, so that the diameter of a light spot at 500m is less than 100mm, and the actual light spot observed in an experiment is 80mm.

A computer-implemented method for upgrading and / or updating at least one service on a computer-implemented system, configured to: a. deploy at least one update version of the at least one service which needs to be updated or be upgraded on the system while maintaining the current version of the service on the system,; b. deploy and operate a monitoring module for protocolling communications among the plurality of services and for analysing dependencies among applications of the services with respect to their running times; c. determine process states of each at least one service which are suitable for updating and / or upgrading the service; d. disable the control of the current version of the service within the current technical application at a time slot of the identified time slots; and e. enable the control of the deployed update version of the service within the current technical application.

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.

The utility model belongs to the technical field of pivot devices, and particularly relates to a pivot device which comprises two bases, an arc-shaped installation piece and a torsion assembly, the two bases are symmetrically arranged, the arc-shaped installation piece is arranged between the two bases, installation spaces are formed in the sides, close to each other, of the two bases, and the torsion assembly is arranged in the installation spaces. First rails are arranged in the mounting spaces of the two bases, each base comprises a mounting plate, a stop block and a half body, a linkage rod and a torsion providing piece are matched to apply torsion to an arc-shaped mounting piece, and torsion assemblies are symmetrically arranged on the two sides of the arc-shaped mounting piece, so that the torsion borne by the arc-shaped mounting piece is equal; and the structural stability of the pivot device during overall rotation is improved. In addition, the base, the arc-shaped mounting piece and the torsion assembly are simple in structure, so that the whole pivot device is easier to assemble compared with the prior art.

The utility model relates to the technical field of optical precision injection molds, and discloses an efficient optical precision injection mold temperature control system which comprises a rectifier and a power line. The direct-current positive and negative rotation solid-state relay is electrically connected to Peltier temperature control equipment through a power line, a heat dissipation device is arranged on the top of the Peltier temperature control equipment, a fixed mold core is arranged outside the Peltier temperature control equipment, and an insert is arranged on the upper portion of the fixed mold core; and one end of the ventilation pipeline is fixedly connected to the output end of the air blower. According to the utility model, the direct current rectified by the rectifier is introduced into the electric copper sheet through the direct current positive and negative rotation solid-state relay, so that the problem of non-uniform product shrinkage due to limited heat transfer performance of water and oil in the prior art and scheme such as water and oil circulation temperature control is solved.

The invention relates to the technical field of ship equipment, discloses an off-line large-model intelligent bidirectional translation system oriented to navigation communication guarantee, and aims to solve the problem that navigation communication among different languages depends on networking requirements of translation software or depends on subjective judgment of accompanying translators in the prior art. According to the technical scheme, the communication content is extracted and translated by using the pre-established model, the subjectivity of manual translation is avoided, networking is not needed, and communication among different languages is realized. According to the invention, the effective voice is extracted, so that the influence of environmental noise is reduced; the voice is converted into the text, communication content can be visually displayed, and information omission is avoided. And the translation unit loaded with the text matching model integrated with the special term of the marine communication can translate special words and sentences in the marine communication, so that the translation accuracy is improved. And the audio recording unit and the storage unit can store communication contents and translation contents, so that subsequent redisk is facilitated.

The utility model relates to the technical field of equipment installation, and discloses a steam generator temporary supporting device which comprises a hydraulic system, a supporting table and a limiting part, and the supporting table comprises a hoisting part, a horizontal adjusting part, a supporting seat and a vertical adjusting part. By arranging the vertical adjusting part, the problems that in the prior art, a hydraulic cylinder is subjected to shear stress perpendicular to the axial direction of the hydraulic cylinder during working, and the hydraulic cylinder responsible for adjusting the longitudinal position of the steam generator is damaged due to excessive abrasion for a long time are solved; therefore, the overall operation stability of the supporting table is improved, and later maintenance work is facilitated; by arranging the lead screw, the adjusting rod and the sliding block, due to the fact that the lead screw rotates to drive the sliding block to move to achieve lifting of the steam generator, and due to the fact that threaded connection of the lead screw and the sliding block has a self-locking effect, it can be further guaranteed that when the power part loses efficacy, the steam generator can automatically keep the existing position, and falling is prevented.

The application provides an adaptive ambient light compensation circuit, aiming at the ambient light interference problem in a photoelectric measurement system, and realizes high-precision ambient light compensation through an integrated analog circuit. The circuit adopts PMOS, NMOS transistors and various amplifiers, resistors, capacitors and switch elements, and builds a system capable of self-adaptive adjustment and elimination of the influence of ambient light current. Compared with the prior art, the application utilizes adaptive current sinking and replication current technology, effectively expands the ambient light compensation range to 0-5mA, reduces the circuit area and improves the integration. In addition, by optimizing the design of the filter capacitor and resistor, the settling time is further shortened, and the trade-off problem between the filter bandwidth and the settling time is avoided. The adaptive ambient light compensation circuit of the application has a wide application prospect in the photoelectric measurement system, and can significantly improve the measurement dynamic range and accuracy.

This invention discloses a self-grown barbed anchor head locking and anchoring method and anchor pipe structure suitable for soft rock tunnels. The steps are: 1. Pre-fabricate a locking anchor pipe with a self-grown barbed anchor head; 2. During the construction of the soft rock tunnel, at the beginning of the rock and soil excavation, embed the pre-fabricated anchor pipe into the surrounding rock mass; 3. The non-rock-embedded end of the anchor pipe is firmly connected to the steel frame; 4. The anchor pipe end forms a self-grown barbed anchor head under the grouting expansion force and pull-out force. The invention also relates to a structure in which the anchor pipe body is connected to the barbed anchor head, the grout-stopping section (non-drilled section) on the anchor pipe body is connected to the grouting-drilled section, a non-rock-embedded end is installed at the end of the grout-stopping section (non-drilled section) of the anchor pipe body, the pointed end of the barbed anchor head is connected to the stacked pipe ring section, and the stacked pipe ring section is connected to the stacked pipe interval sections. The method is easy to implement and simple to operate, solving the problems existing in the current technology. It can safely and efficiently assist in construction, reduce the number of anchor pipes, shorten the length of anchor pipes, and effectively improve the safety of tunnel structure and the stability of the tunnel.

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 utility model discloses a VIP refrigerator door structure. The VIP refrigerator door structure comprises a four-edge-sealing vacuum heat insulation plate, a door sealing strip and an edge-sealing-free vacuum heat insulation plate. The door sealing strip is provided with a groove, the sealing edge of the four-edge-sealed vacuum heat insulation plate is embedded into the groove of the door sealing strip, the door sealing strip abuts against the periphery of the four-edge-sealed vacuum heat insulation plate, and the face, provided with the sealing edge, of the four-edge-sealed vacuum heat insulation plate is attached to the edge-sealing-free vacuum heat insulation plate. The vertical projection of the four-edge-sealing vacuum insulation plate and the vertical projection of the door sealing strip are located in the vertical projection of the edge-sealing-free vacuum insulation plate. According to the refrigerator, the energy consumption of the whole refrigerator can be obviously reduced, the possible condensation phenomenon is avoided, and the door body is thinner than the door body in the prior art under the same heat preservation effect.

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 present invention provides an open-pit mine rock cuttings collection and shaping robotic arm, belonging to the technical field of open-pit mine drilling rock cuttings. The arm can be installed on various drilling rig platforms or vehicles and comprises a positioning shaft, an annular cover, a spatial position adjustment mechanism, a collection mechanism, and a squeezing mechanism. One end of the positioning shaft is connected to the spatial position adjustment mechanism, and the other end is connected to the blasthole. The spatial position adjustment mechanism is used to adjust the spatial position of the positioning shaft. The end of the positioning shaft connected to the blasthole is also fixedly connected to the annular cover. The annular cover and the positioning shaft together form a chip chamber with a closed top and an open bottom. The chip chamber is provided with a squeezing mechanism connected to the positioning shaft. The squeezing mechanism is used to push the rock cuttings away from the blasthole so that the rock cuttings contact the inner circumference of the annular cover and are compacted. The collection mechanism is rotatably connected to the positioning shaft and is used to push the distal rock cuttings toward the center of the blasthole. The arm is used to solve the problem of large manpower consumption and increased labor costs in the current technology of blasthole rock cuttings processing.

The invention discloses a factory modularization manufacturing method for a boiler steel structure, relates to the technical field of boiler steel structure manufacturing, and aims to solve the technical problems that in the prior art, multiple step loopholes exist, management is disordered, and the quality of the boiler steel structure is difficult to guarantee. Carrying out numerical control or gas cutting material cutting; grouping and splicing; welding is conducted; performing correction; installing and welding the stiffened plates; checking and accepting the size; removing rust; paint coating is conducted; and checking and accepting appearance and paint. According to the manufacturing method, all the steps are tightly matched, and the quality of the boiler steel structure is comprehensively guaranteed from strict treatment of steel before blanking, fine control over the environment, materials and the process during welding and quality detection of multiple links such as size acceptance, appearance and paint acceptance, correction after welding and stiffened plate installation and welding. According to the invention, the stability and reliability of the structure are enhanced, and the first-pass yield of products is effectively improved.

The application relates to the technical field of power electronics, and discloses a power distribution control method, a device and a medium, wherein a power distribution line is divided into section lines according to a preset distribution principle; power values of the section lines are obtained; and corresponding transformer taps and compensation capacitors are adjusted according to the power values of the section lines, so that the overall energy efficiency of the power distribution line and the load is improved. In the prior art, due to the increasing proportion of new energy distributed power sources and loads based on power electronics technology in the power distribution line, the local voltage is too high, and the reactive power circulation problem occurs. By dividing the power distribution line into multiple section lines and adjusting the section lines according to the power values, the section management of the power distribution line is realized, the corresponding transformer taps and compensation capacitors are adjusted, the existing power distribution network is effectively utilized, the power distribution efficiency of the line is improved, and the influence of the load is reduced.

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.

The application provides a detachable hearing aid earphone applied to the field of hearing aid earphones, which comprises a wearing part, a magnetic back plate, a magnetic main machine and an earphone. The wearing part is connected with the magnetic back plate. The magnetic main machine is connected with the magnetic back plate through magnetism. The magnetic main machine is provided with a socket on both sides. The earphone is matched with the socket. The current technology is that the hearing aid device collects sound on the user's body and transmits the sound to the earphone through a wired connection. Because the sound collecting device of the hearing aid is worn on the user's body, the user's own voice is louder than the sound from a distance or the surrounding sound. The technology solves the technical problem that the user's voice and the surrounding sound are consistent when collected.

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 an Ethereum daily erosion attack static detection method, and relates to the technical field of block chains. The method comprises the following steps of: recording the connection condition of a node according to a TCP (Transmission Control Protocol) data packet of the node, starting an independent thread, and judging whether the node enters a full connection state or not per second; and if the node reaches a full connection state and the duration of the connection state exceeds a specified threshold value, triggering an alarm of the solar erosion attack. According to the detection method, secret and slow-speed solar erosion attacks can be identified. When an attacker enables a target node to automatically expel normal nodes, actively establish close connection with malicious nodes or directly tamper a discovery table of the target node by using code vulnerabilities through a method similar to manipulation of a clock of the target node, the current technology cannot detect the occurrence of the solar erosion attack, and the accuracy of Ethereum solar erosion attack detection is improved.