341results about How to "Achieve integration" patented technology

The invention relates to the technical field of intelligent clamping control, in particular to an online prediction method and system for the clamping stability of a flexible manipulator, and the method specifically comprises the following steps: collecting a clamping operation signal in a simulation experiment platform through a sensor network, and constructing a data set marking the clamping instability probability; performing alignment processing on unequal-length signals by adopting dynamic time warping integrated with physical constraints; then constructing an online model including multi-modal feature adaptive extraction fusion, time sequence feature enhancement and key frame dynamic detection and stability probability prediction, and completing model training optimization by using mean square error loss and small-batch gradient descent; and finally, deploying the model to a manipulator system to realize real-time data processing and clamping instability probability online output. The method can effectively adapt to a biochemical vessel clamping scene, the time sequence signal alignment precision and the risk prediction reliability are improved, and a real-time guarantee is provided for the operation stability of the flexible manipulator.

The invention provides a PQC and SM2 / 9 cooperative operation cryptographic chip and method based on an RISC-V architecture, and belongs to the technical field of cryptographic security. The chip comprises an RISC-V core and a configurable password collaborative operation unit, wherein the configurable password collaborative operation unit comprises a collaborative control state machine and a unified operation unit capable of being dynamically reconfigured. The method comprises the following steps: receiving and decoding a single cooperative operation instruction from an RISC-V core through a cooperative control state machine, and obtaining operation data feature information; the data length and the security level identification are extracted, and the optimal collaborative operation process is selected in a self-adaptive mode through comparison with a preset threshold value; and finally, dynamically configuring and scheduling a unified operation unit according to the selected process, and completing cooperative operation of the post-quantum cryptography algorithm and the SM2 / SM9 algorithm in an atomization mode. According to the method, deep fusion and intelligent scheduling of the two algorithms are realized on the hardware level, and the efficiency, the resource utilization rate and the safety of cooperative operation are improved.

The invention provides an opencast coal mine data fusion method and device, electronic equipment and a storage medium, relates to the technical field of data processing, and realizes automatic access and integration of geological information, measurement data, mining parameters and safety monitoring data by constructing a unified data interaction platform and configuring a standardized interface protocol. Meanwhile, a three-dimensional real-scene model is generated based on automatic processing of field data collected by an unmanned aerial vehicle and a laser radar, loading and rendering are carried out in the platform, incremental updating is carried out on the three-dimensional real-scene model of a mining area by adopting a dynamic updating mechanism in combination with mine production real-time data, and volume change calculation is carried out based on the updated model; in addition, a cross-professional data association model is established by using an intelligent collaborative decision engine, and linkage analysis is performed according to the three-dimensional live-action model updated in real time and the safety monitoring data to generate risk behavior early warning information and output a mining plan dynamic optimization scheme, so that the problem of low data circulation efficiency in the prior art can be solved.

The invention relates to the technical field of concrete electric pole manufacturing, and discloses an optimized steel fiber anti-crack ultra-high performance concrete centrifugal electric pole manufacturing method and system. The method comprises the following steps: dividing an electric pole manufacturing process into a plurality of manufacturing units according to production batches, and collecting material component data, process setting data and online detection data in each manufacturing unit to form a multi-source production data set; calculating an anti-cracking performance index and a strength performance index based on a multi-source production data set, and dynamically outputting an initial process correction value through a dual-threshold monitoring mechanism and a performance adjustment model; performing adaptive adjustment on the initial process correction value of each manufacturing unit according to the production correlation between the adjacent manufacturing units to generate an adjusted process correction value; and carrying out serialization processing on the adjusted process correction value, and outputting a production optimization instruction which is applied to a manufacturing execution process. According to the method, electric pole manufacturing whole-process data integration and dynamic process optimization are achieved, and the production efficiency and the product quality stability can be improved.

The invention discloses an intelligent costume design recommendation system based on big data, which belongs to the technical field of intelligent costume design and comprises a data acquisition and processing module, a portrait construction module, an intelligent costume design module and a recommendation scheme generation module. According to the method, the multi-modal fusion and dynamic style anchor point combined user scene portrait construction method is adopted, so that comprehensive integration of user body types, long-term and short-term style preferences and scene wearing and building requirements is realized, and a recommendation system can capture current interests and popular trends of the users in real time; generating a personalized costume design conforming to the aesthetic appreciation of the user and adapting to an actual scene; intelligent costume design is carried out by combining conditional potential diffusion costume generation and aesthetic wearable joint evaluation, a design drawing considering the body type, style preference and use scene of a user at the same time is generated, and visual aesthetics and actual wearing feasibility double evaluation is carried out on a generation result, so that it is ensured that recommended costume design meets aesthetic requirements, and the user experience is improved. And the garment is comfortable and fit in real wearing.

This invention provides a coolant flow channel plate, relating to the technical field of vehicle thermal management. It includes a cover plate fixed to the top of a main board, with the main board and cover plate welded together at their side edges to form an internal flow channel cavity. The cover plate has refrigeration unit inlet / outlet assemblies on its surface. The main board has, from left to right, a heater pump mounting port, a battery pump mounting port, and a motor pump mounting port. The circuits between the heater pump and battery pump mounting ports, and between the heater pump and motor pump mounting ports, within the internal flow channel cavity are each equipped with a first anti-heat-spreading section. The circuit between the motor pump and battery pump mounting ports forms a variable-diameter section, with a second anti-heat-spreading section at its front end. A guide section is provided on the circuit of the battery pump mounting port. This invention solves the problem of lacking anti-heat-spreading structures at the connection points of circuits in different temperature ranges, achieving the technical effects of reducing vehicle weight, reducing vehicle connection piping, reducing heat loss in the thermal management system, and improving thermal management efficiency.

The application provides an automatic system and an assembling method of double-line supply integrated assembly, which comprises a first supply line and a second supply line, the first supply line and the second supply line are collected to a positioning assembly output line through a robot taking materials, the first supply line comprises a multi-axis running feeding machine and a secondary positioning platform in sequence, the second supply line comprises a flying feeder, an adsorption material taking device, a clamping material taking device, a point laser height measuring instrument and an upper visual positioning scanning module are arranged on an execution end of the robot, the positioning assembly output line comprises a lower visual positioning module and a product circulation mechanism in sequence, a positioning installation station is arranged on the product circulation mechanism, a material positioning module and a material blocking module are arranged at the positioning installation station, and the execution end of the robot is matched with the flying feeder, the secondary positioning platform, the lower visual positioning module and the positioning installation station in sequence. Through the double-line supply cooperation, multi-stage visual positioning and full-process automation design, the efficiency bottleneck and the precision problem in the assembly of special-shaped parts are effectively solved.

The invention provides an unmanned aerial vehicle attitude and heading resolving method based on multi-sensor fusion, and belongs to the technical field of unmanned aerial vehicle navigation. The method comprises the following steps: initializing a navigation state which covers state information required by a heading attitude resolving process; constructing a sensor measurement model; state prediction is completed based on real-time updating of IMU data, and an initial prediction value is provided for observation updating; correcting prior state estimation by using measurement data acquired by multiple sensors; a prediction-observation-correction loop iteration mechanism is adopted, real-time fusion of multi-sensor data is achieved, and a heading attitude result is output in real time. Complementary characteristics of the sensors are brought into full play, the precision, anti-interference capability and scene adaptability of attitude and heading calculation are improved, attitude angle, say velocity and height information can be output in real time, and the real-time performance and reliability of navigation and control of the unmanned aerial vehicle are met.

The utility model discloses a medicine application nursing appliance, which belongs to the technical field of medical instruments and comprises a substrate layer, a medicine bag cavity, an anti-seepage ring, a heating component and a displaceable pressing component. When the medicine applying nursing appliance is used, the medicine applying nursing appliance is stably adhered to the umbilical region of a user through the adhering edge on the base layer, the medicine bag in the medicine bag cavity acts on the umbilical region for treatment, and the movable pressing assembly can be moved to the umbilical region or near the Tianshu point for intermittent pressing during the period. In addition, the heating assembly can be started to conduct low-temperature heat conduction on the application area, integration of medicine, hot compress and acupoint pressing is achieved, and the treatment effect is improved. The medicine bag is arranged in the medicine bag cavity, replacement is convenient, medicine liquid leakage can be prevented, and use convenience is improved.

The invention discloses a coke residue feature detection method and system based on image and pressure alignment, and solves the problems that the subjectivity is high, the accuracy is difficult to guarantee and the physical and psychological health of detection personnel is influenced when coke residue feature detection is manually carried out in the prior art. The method comprises the steps of collecting a coke residue image and pressure data, performing preprocessing to form image input and pressure input, and constructing sample data; a neural network model is constructed, image features of image input are extracted by the image coding layer, pressure features of pressure input are extracted by the pressure coding layer, and the image features and the pressure features are fused and then are subjected to coke residue classification through a classifier; constructing a model comprehensive loss function; inputting sample data for training to obtain a coke residue classification model; and deploying the model, and inputting the to-be-detected coke residue image and the pressure data into the model to obtain a coke residue classification result. According to the method, the neural network is fully utilized, the image and the pressure are effectively fused, information complementation and integration are realized, and the classification detection precision of the coke residues is effectively improved.

The utility model provides a multifunctional loudspeaker. The multifunctional loudspeaker comprises a frame, a T iron, a first wiring terminal, a second wiring terminal, a loudspeaker assembly and a buzzer assembly. The T-shaped iron is coaxially fixed at the outer bottom of the basin stand, and a positioning column is coaxially arranged at the upper end of the T-shaped iron and extends into the basin stand; the first wiring terminal and the second wiring terminal are both fixed on the outer wall of the basin stand; the loudspeaker assembly is fixed on the inner side of the basin stand and is connected with the upper end of the positioning column. The loudspeaker assembly is electrically connected with the first wiring terminal. The buzzer assembly is coaxially fixed at the lower end of the T iron and is electrically connected with the second wiring terminal; according to the utility model, the integration of the loudspeaker and the buzzer is realized, so that the occupied space of parts can be reduced and the cost of the parts can be reduced when the loudspeaker and the buzzer are applied to a product which needs to have the functions of voice broadcast and buzzing alarm at the same time.

This invention discloses a silk fibroin-based biomimetic artificial tympanic membrane with a gradient structure and its preparation method, comprising the following steps: encapsulating and dissolving an antibacterial drug in an organic solvent and then adding it dropwise to a silk fibroin solution; casting the film and inducing the formation of a β-sheet structure with methanol to obtain an outer dense layer; electrospinning the silk fibroin solution to obtain oriented silk fibroin fiber felt, and cross-linking it in an ethanol solution to obtain an intermediate fiber layer; mixing the silk fibroin solution with a pore-forming agent and casting it onto the intermediate fiber layer; covering the intermediate fiber layer with the outer dense layer; after pre-freezing and lyophilizing, immersing the membrane in deionized water to dissolve the pore-forming agent to form an inner porous layer; then placing it in a PBS buffer containing growth factors and shaking treatment; and finally drying to obtain the silk fibroin-based biomimetic artificial tympanic membrane with a gradient structure. This invention's three-layer biomimetic artificial tympanic membrane possesses antibacterial and regenerative functions, while also exhibiting excellent mechanical properties, meeting the requirements of a biomimetic tympanic membrane.

The utility model provides a zero live wire power isolation circuit and double manganese copper measurement equipment relates to power isolation field. This zero live wire power isolation circuit includes current doubling circuit, first rectifier circuit and second rectifier circuit, and current doubling circuit first input end connects GND, second input end connects UN, first output end connects the input end of first rectifier circuit, second output end connects the input end of second rectifier circuit, and current doubling circuit is used for isolating first output end and second output end, the output end of first rectifier circuit connects VBB, the output end of second rectifier circuit connects MHVDD, and first rectifier circuit and second rectifier circuit are used for voltage reduction. The utility model provides zero live wire power isolation circuit design is compact, and simultaneously uses conventional electrical component, and production cost is low.

This invention provides a method for detecting sensor anomalies in nuclear power plants. The method includes: constructing a principal component analysis model, calculating the Q-statistic, and determining a first threshold; training a Bayesian long short-term memory neural network model and calibrating its prediction interval; calculating a second and third threshold based on the predicted value and uncertainty output by the calibrated model; inputting test data into the two models to obtain the Q-statistic, predicted value, and uncertainty, and comparing them with the corresponding thresholds to obtain three judgment results; and making a final judgment on the three results using a logical judgment table. This invention integrates spatiotemporal characteristics and uncertainty assessment, achieving high-precision and high-reliability sensor anomaly detection with only normal operating data, exhibiting high reliability and robustness.

The utility model discloses an integrated tank body structure of a tire bead steel wire copper plating auxiliary tank. The integrated tank body structure comprises an auxiliary tank I, an auxiliary tank II, an auxiliary tank III, a partition plate, a high-position overflow pipe, a discharge pipe, a stirrer, a communicating pipe, a metering pump, a circulating pump and a liquid level pipe, partition plates are connected into the first auxiliary groove and the second auxiliary groove, stirrers are connected to top plates, on the two sides of the partition plates, of the first auxiliary groove and the second auxiliary groove, the first auxiliary groove is connected to the top face of the second auxiliary groove, the second auxiliary groove is connected to the top face of the third auxiliary groove, and the bottoms of the side faces of the first auxiliary groove, the second auxiliary groove and the third auxiliary groove are all connected with discharge pipes and high-position overflow pipes; the bottom of the side face of the third auxiliary tank is further connected with a liquid level pipe, the high-position overflow pipe is connected with a discharge pipe, and the second auxiliary tank and the third auxiliary tank are connected through a metering pump and a circulating pump. Compared with the prior art, the copper plating auxiliary tanks are integrally connected to form a new tank body structure by using the connecting pipes connected with the ball valves and the metering pumps, so that the occupied area of the tank body is reduced, the stability of the concentration of a solution is ensured, and the dripping accuracy of the solution is improved.

The application discloses a kind of multi-gas source multi-user injection-production gas switching metering devices and processes for gas storage, and relates to the technical field of gas storage injection-production gas equipment, specifically to a kind of multi-gas source multi-user injection-production gas switching metering devices for gas storage, including gas field gas pipeline, low-pressure pipeline, injection-production gas pipeline, high-pressure pipeline, first gas recovery processing pipeline, second gas recovery processing pipeline;One end of the gas field gas pipeline is used to communicate with gas field, and the other end of the gas field gas pipeline communicates with the second gas recovery processing pipeline;The application provides a kind of multi-gas source multi-user injection-production gas switching metering devices and processes for gas storage, which is applied in gas storage, can realize the free switching measurement and interconnection of multiple gas sources and users in different injection-production cycles of gas storage, and realizes the standardization, serialization, integration, modularization and skid-mounted of the device, which can effectively reduce the construction period and construction cost.

The application provides an old person medical self-service machine intelligent interaction system and method based on a BP neural network, binocular cameras collect near-infrared and visible light dual-mode image data of a user's face, a first sub-network calculates an old person identity similarity P1; the relationship between the old person identity similarity P1 and a preset threshold T1 is judged, if P1 >= T1, it is considered that an old person is operating, an infrared sensor is triggered to collect hand behavior data; hand behavior features are extracted according to the hand behavior data collected by the infrared sensor, the hand behavior features are used as inputs of a second sub-network, and a behavior compliance degree P2 is calculated; the relationship between the behavior compliance degree P2 and a preset threshold T4 is judged, if P2 < T4, and the hovering duration >= T2 or the click frequency <= T3, it is determined that an operation difficulty state exists; an interaction adaptation and multi-level early warning mechanism is triggered. The application has the characteristics of high intelligence, multi-modal data fusion, active intelligent adaptation, three-level early warning service closed loop, adaptive parameter configuration and small sample learning ability.

The invention discloses a workover treatment efficient dismounting device based on a hydraulic boosting system and an operation method. The workover treatment efficient dismounting device comprises a supercharger and a back striking wrench. The supercharger comprises a shell, an oil way core, a throttling valve, an overflow valve, a control valve and a filter are installed in the shell, a supercharging module, an operating handle, an input inlet, an input outlet, a pressure measuring connector, an output inlet and an output outlet are installed outside the shell, the operating handle is connected with the control valve, and the supercharging module is connected with the filter. The back beating wrench comprises a bent handle, and the head of the bent handle is connected with a jackscrew. According to the invention, the function of dismounting rusted screws by using the low-pressure hydraulic pump of the workover rig in a manner of driving liquid with liquid is realized, the operation construction efficiency is improved, and the potential safety hazard of operation is eliminated.

The utility model relates to the technical field of network communication equipment, in particular to a remote consultation terminal communication assembly with a self-adaptive network switching function, which comprises a terminal communication host, the top of the terminal communication host is communicated with the outside, and the top surface of the terminal communication host is detachably connected with a top cover. A plurality of concave holes communicated with the interior of the terminal communication host are formed in the bottom surfaces of plate bodies on the front side and the rear side of the top cover, a plurality of heat dissipation holes communicated with the corresponding concave holes are formed in the front side face and the rear side face of the top cover, a rectangular groove is formed in the upper surface of the top cover, and a display screen is fixedly installed on the bottom wall of the rectangular groove. A plurality of ventilation holes communicated with the outside are formed in the groove walls of the left side and the right side of the rectangular groove, the ventilation holes are horizontally formed, and a cover plate is hinged to the upper surface of the top cover through a hinge. The heat dissipation device has a good heat dissipation effect, and stable operation of equipment is facilitated.

A modular intelligent pipe support, belonging to the field of pipeline vibration control, includes a support body, sensors, a vibration signal acquisition, analysis, and alarm module, and a dynamic vibration absorption module. This invention is geared towards practical engineering applications. While retaining the boundary constraints and vibration control functions of existing pipe supports, it adds a modular device that integrates dynamic vibration absorption, energy harvesting, vibration monitoring, anomaly alarms, and wireless communication functions. This solves the problems of existing pipe supports having limited functionality, being unable to effectively handle pipeline spectrum vibrations, and requiring significant manpower and resources for routine safety inspections. Its core technology lies in utilizing a cantilever beam-mass block structure to provide targeted dynamic vibration absorption reaction force, effectively controlling pipeline spectrum vibrations; using piezoelectric materials to convert the mechanical energy generated during the cantilever beam vibration process into electrical energy, thereby powering the online monitoring module; and using sensors to collect the support vibration signals in real time, thus realizing the monitoring and analysis of support vibrations.

The invention discloses a low-altitude general airport rapid building system and method based on modular splicing, and the system comprises a twinborn model management module which is used for managing a multi-dimensional digital twinborn model of a low-altitude general airport assembly; the three-dimensional scene building module is used for realizing quick assembly and component butt joint of a low-altitude general airport scene through modular dragging, wireframe type connection and a process expression mode; the multi-source data docking module integrates a multi-protocol interface library and a data unified service, and is used for accessing an external data platform and a simulation model to realize data analysis and driving; and the visual operation platform is used for loading the twinborn model and the multi-source data and driving three-dimensional scene operation and real-time monitoring. According to the method, geometric, physical, behavior and rule fusion is realized through a multi-dimensional twin model pedigree; through interconnection and intercommunication of multi-source data, real-time performance is guaranteed through a general interface library, and then visual simulation and one-key preview scene operation are realized.

The application provides a typhoon historical disaster case matching method and device, computer equipment and medium, and relates to the field of data processing. The method comprises the following steps: acquiring real-time disaster data of a current typhoon disaster; inputting the real-time disaster data into a pre-trained water conservancy large model, and outputting a target typhoon historical disaster case matched with the real-time disaster data through the water conservancy large model; specifically, extracting first multi-dimensional features of the real-time disaster data and converting them into a first feature vector; calling a first typhoon historical disaster case preliminarily matched with the real-time disaster data, extracting second multi-dimensional features of the first typhoon historical disaster case, and converting them into a second feature vector; screening second typhoon historical disaster cases meeting the constraint conditions of water conservancy projects from the first typhoon historical disaster case; calculating the similarity between the real-time disaster data and each second typhoon historical disaster case; and determining the matched disaster case according to the similarity from high to low.

This invention provides an on-chip integrated spectral measurement method and apparatus based on quantum-induced coherence. The method includes: introducing pump light into one or more surface waveguide channels; the pump light undergoes spontaneous parametric down-conversion in a first nonlinear region within the corresponding surface waveguide channel, generating a first probe light and a first signal light entangled with it. Within the microfluidic control, the first probe light undergoes resonant absorption upon interaction with the sample under test. The resulting mixed light enters a second nonlinear region at the rear end of the surface waveguide channel to establish quantum coherence. After scanning the refractive index of each surface waveguide channel through a modulation element, a quantum interference signal characterizing the spectral information of the sample under test is formed on the signal light probe at the exit of each surface waveguide channel. This method not only achieves non-contact spectral measurement but also offers a wide detection range and high accuracy.

The application provides a multi-domain extremely narrow pulse radar echo target fusion recognition method based on scattering center matching degree constraint and structural feature auxiliary constraint, constructs an end-to-end classification model for multi-frequency and multi-polarization fusion recognition of an extremely narrow pulse radar echo, can perform feature extraction on input multi-frequency and multi-polarization extremely narrow pulse radar echoes and fusion of frequency dimension and polarization dimension information, and then directly recognizes the fusion features, realizes end-to-end fusion recognition integration, adopts deep learning technology based on feature level fusion, can more fully utilize feature information contained in samples, makes the model make more accurate and stable decisions in the classification task. The method fully mines the correlation between multi-frequency and multi-polarization information, fuses the frequency dimension and polarization dimension information mined, utilizes rich scattering information of multi-frequency and multi-polarization extremely narrow pulse radar echoes, and achieves a relatively ideal target recognition effect.

The invention discloses an integrated control system for electric modification of an electric tractor, and belongs to the technical field of agricultural machinery. The system comprises a signal processing module, a health state evaluation module, a control decision module, an execution module and an optimization module, all the modules realize data interaction through the Ethernet, and the system is adaptive to heterogeneous hardware integration requirements after electric modification of a traditional fuel tractor. According to the invention, the health state evaluation module and the prediction model realize quick response and graded protection of high-voltage insulation, battery overheating and actuator fault scenes through clear quantification, and realize quantitative scoring of the health degree in the limitation of temperature, load and attitude coupling complex scenes; meanwhile, the time domain and frequency domain characteristics of the signals are extracted to provide a quantitative basis for evaluation, different actions of power reduction, speed limiting and emergency shutdown are triggered according to the health degree state, the situation that operation efficiency is affected by excessive protection is avoided, early warning can be conducted in the early stage of a fault, rapid protection can be conducted when the fault occurs, and the running safety and reliability of the tractor are improved.

This invention relates to the field of multimodal sentiment analysis technology, and in particular to a method and system for multimodal sentiment analysis based on sequential translation under uncertain and missing modalities. The method includes: acquiring multimodal sentiment data, including visual, textual, and auditory modalities; constructing a multimodal sentiment analysis model based on sequential translation, firstly by extracting self-attention encoding features of each modality using a Transformer encoder; and then designing a bidirectional sequential translation architecture centered on the textual modality. This invention improves the utilization of textual modal features in the feature fusion process, thereby enhancing the quality of multimodal fusion features and providing strong support for subsequent complex sentiment analysis.

This invention discloses a six-degree-of-freedom laser measurement system belonging to the field of precision measurement technology. It includes a laser source, a collimating and beam-expanding lens, three beam-splitting prisms, a reflector, a cross-shaped circular reflective target, two focusing lenses, three CCD cameras, and a telecentric lens. Based on the different degrees of freedom being measured, it is divided into a first optical system, a second optical system, and a third optical system. The first optical system uses the principle of oblique-shot laser triangulation to measure the displacement of the object along the Z-axis. The second optical system uses the principle of self-collimation to measure the rotation angles of the object along the X and Y axes. The third optical system uses the principle of visual imaging to measure the displacement of the object along the X and Y axes and the rotation angle along the Z-axis. This invention employs an optical path multiplexing mechanism, significantly reducing the number of components and achieving system miniaturization, integration, and low cost. The six degrees of freedom are measured independently, avoiding coupling relationships between them.

The invention discloses a slice laser based on a topological structure dodging layer. The slice laser comprises a pumping system, a pumping light injection module and a composite dodging waveguide structure, pumping light generated by the pumping system enters the composite dodging waveguide structure through the pumping light injection module; the front end face of the composite dodging waveguide structure is plated with a pumping light wavelength high-reflective film and a laser wavelength antireflection film, and the rear end face of the composite dodging waveguide structure is plated with a pumping source wavelength and laser wavelength high-reflective film; the composite dodging waveguide structure comprises a slice gain medium, a topological structure dodging layer and a middle refractive index layer which are sequentially arranged from the front end face to the rear end face. The topological structure dodging layer is composed of a low-refractive-index material layer and a high-refractive-index material topological graph arranged on the low-refractive-index material layer; and the pump light injection module is fixed above the high refractive index material of the middle refractive index layer or the topological structure dodging layer. Pumping uniformity is improved fundamentally, high-order mode suppression and efficient fundamental mode extraction are facilitated, and output power and light beam quality are improved at the same time.

The utility model discloses a surgical knife with a visual function, and relates to the technical field of medical instruments. The surgical knife with the visual function comprises a mirror tube and a handle arranged at the rear end of the mirror tube. The endoscope tube comprises an outer sleeve and an inner sleeve. A cutter assembly is arranged in the inner sleeve, and the front end of the cutter assembly extends to the outside of the endoscope tube. And an electronic endoscope and a lighting piece are arranged at the front end part of the endoscope tube between the outer sleeve and the inner sleeve. According to the surgical knife with the visual function, the surgical knife and the electronic endoscope are integrated together, so that the operation can be completed by a single hand.

The invention relates to the technical field of vehicles, and provides an engine control device and a humidity measuring method. The method comprises the following steps: detecting the actual pump current of the wide-range front oxygen sensor in the current state; obtaining the theoretical pump current of the wide-area front oxygen sensor; comparing a current difference value Dip between the actual pump current and the theoretical pump current with a set threshold value, and if the current difference value is greater than the set threshold value, entering the next step; when the engine is in the humidity detection working condition, a natural gas injection quantity coefficient and a knock intensity indication coefficient are collected and are subtracted from corresponding preset standard values, and a knock difference value and a natural gas injection quantity difference value are obtained; calculating the relative humidity of the intake air of the engine; and by searching a preset conversion table of the relative humidity and the absolute humidity, obtaining the target humidity of the intake air of the engine. The technical problems that an intake oxygen sensor and an air mass flow sensor need to be additionally installed in traditional engine humidity measurement, the structure is complex, cost is high, and reliability is insufficient are solved.