54results about How to "Avoid differences" patented technology

The invention discloses a civil engineering cost evaluation method and system based on model optimization, and particularly relates to the technical field of civil engineering cost evaluation. Three-dimensional building information and the actual environment of a construction site are combined by establishing a virtual simulation scene based on a BIM model and combining a virtual reality or augmented reality technology, meanwhile, environment variables related to actual construction are dynamically introduced, the variables are analyzed through a machine learning algorithm, risk assessment is conducted on different construction stages, and the risk assessment efficiency is improved. The BIM model is dynamically adjusted and optimized, and based on the optimized BIM model and the risk assessment result, cost assessment is performed for different construction schemes and a report is output, so that the difference between a traditional virtual environment and a real construction condition is effectively made up, the construction cost and risk can be accurately predicted, project hyperbranched and delay are reduced, and the construction efficiency is improved. And more accurate cost evaluation and construction management are realized.

The invention relates to the technical field of voice recognition, in particular to a mixed recognition processing method and device, equipment and a medium, and the method comprises the steps: recognizing command word data based on a command word recognition model, selecting command word data with an error rate lower than a preset range, generating a corresponding phoneme embedding representation, and forming a phoneme embedding dictionary; determining a mixed recognition command word corresponding to the current command word, and generating a mixed recognition list; identifying an audio embedding sequence corresponding to the current command word; obtaining a phoneme embedding sequence of each mixed recognition command word in the mixed recognition list based on a phoneme embedding dictionary; and calculating the similarity between an audio embedding sequence and each phoneme embedding sequence to obtain an identification result. The method and the device can improve recognition accuracy and reduce mixed recognition of command words.

The invention relates to the technical field of 3D printing control, in particular to a 3D printing control method and system. The method comprises the following steps that a piezoelectric ceramic actuator is used for conducting pulse plastic melting state collection on a 3D printing nozzle, and plastic melt pulse monitoring data are generated; carrying out damping coefficient fitting on the plastic melt pulse monitoring data, and carrying out PID control instruction parameter dynamic adjustment to obtain a plastic melt flow extrusion control strategy; obtaining a target 3D printing model; and intelligent 3D printing control optimization is conducted on the target 3D printing model through a plastic melting flow extrusion control strategy, and an intelligent 3D printing control strategy is obtained. The micro sensor is integrated in the printing nozzle to collect melt flow data in real time, and printing parameters are dynamically adjusted, so that the flow behavior of the high-viscosity plastic melt is accurately controlled, and the surface quality and the size precision of a 3D printing piece are effectively improved.

The invention belongs to the field of natural language processing and efficient fine tuning of parameters, and particularly relates to a multi-domain question and answer task fine tuning method based on a low-rank adaptive matrix and hybrid experts, and the method comprises the steps: loading and dividing a data set; a sentence vector model is used for extracting data set sentence vector representation, and a K-means clustering algorithm is used for sentence vectors to obtain a category number N; loading the pre-training language model, and freezing original model parameters; constructing N asymmetric low-rank expert modules and routing modules beside a specified structure in the model; sentence vector representation is used as input of a routing module, and the routing module calculates expert weights and performs weighted summation on different experts. The multi-domain question and answer task fine tuning method comprises a low-rank adaptive matrix and a hybrid expert module. According to the method, the number of trainable parameters is remarkably reduced by using the low-rank adaptive matrix, and the training efficiency is improved; a hybrid expert module is used to learn proprietary knowledge of questions in different fields in a complex question and answer task, and the generalization ability of the model is improved.

The invention discloses a three-dimensional medical image reconstruction pre-training method based on task perception, and the method comprises the steps: carrying out the preprocessing of an original three-dimensional medical image, and obtaining a preprocessed image; constructing a mask reconstruction main task, and establishing a main task network in the mask reconstruction main task; the main task network comprises a mask module, a reconstruction main task encoder and a reconstruction main task decoder which are sequentially connected in series; wherein the masking module is used for performing selective masking based on a high semantic information masking strategy on the preprocessed image; constructing a segmentation auxiliary task, and establishing an auxiliary task network in the segmentation auxiliary task to perceive a downstream segmentation task; the auxiliary task network comprises a segmentation task encoder and a segmentation task decoder; and performing joint learning on the mask reconstruction main task and the segmentation auxiliary task so as to optimize and train the main task network and the auxiliary task network at the same time. According to the method, the pre-training efficiency is improved, and the segmentation precision is improved under the condition that the downstream task complexity is not increased.

The present invention discloses a memory recycling control method and system for a Linux system based on eBPF. The method of the present invention comprises obtaining recycling control parameters for realizing different controls by combining different inputs by a user through a BPF user state program and passing the parameters to a BPF kernel state program; parsing the recycling control parameters and triggering a kernel memory recycling program through a BPF kernel state program; and executing memory recycling control according to the recycling control parameters through the triggered kernel memory recycling program. The present invention aims to realize memory recycling control of a Linux operating system by utilizing the powerful interaction capability of eBPF and a kernel, so as to avoid differences between different versions of a control group, provide a general memory control framework and intuitive and easy-to-understand control parameters for recycling control, support independent recycling control of file pages and anonymous pages according to the memory usage characteristics of an application, and support control of a scanning strategy for memory recycling according to the memory hot and cold characteristics of an application.

The utility model discloses a PCB board grinding machine which comprises a board grinding machine body, adjusting grooves are formed in the front face and the back face of the board grinding machine body, adjusting rods are fixedly connected to the inner sides of the adjusting grooves, weight sensors are fixedly connected to the bottom ends of the adjusting rods, a lifting board is fixedly connected to the bottom ends of the weight sensors, and a board grinding motor is fixedly connected to the front face of the lifting board. The driving end of the plate grinding motor is fixedly connected with a plate grinding assembly, the front face of the plate grinding machine body is fixedly connected with a control panel, the two sides of the plate grinding machine body are fixedly connected with conveying frames, the front faces of the conveying frames are fixedly connected with a conveying mechanism, a telescopic rod is fixedly connected into the plate grinding machine body, and one end of the telescopic rod is fixedly connected with a mounting support. Through the arrangement of the adjusting rod, the weight sensor and the lifting plate, the board grinding effect is improved, the board grinding machine can automatically adjust the board grinding pressure according to the thickness of a PCB, and board grinding differences generated by the PCB are avoided.

The invention provides a wafer testing method and system and a testing machine, belongs to the technical field of semiconductors, and can improve the accuracy and efficiency of wafer testing. The method comprises the steps that a test machine receives a calibration starting signal from a test board, the calibration starting signal is used for indicating that a wafer is placed at a designated position, and the designated position is a position where the wafer does not make contact with the test board and the distance between the wafer and the test board is smaller than or equal to a distance threshold value; the test machine sends an open circuit calibration instruction to the test board, wherein the open circuit calibration instruction is used for eliminating adverse effects of stray capacitance between the wafer and the test board on wafer test; the test machine receives the capacity value of the stray capacitor from the test board; and the test machine sends an open circuit calibration success signal to the test board, and the open circuit calibration success signal is determined according to the capacity value of the stray capacitance and is used for indicating that the open circuit calibration of the wafer is successful and indicating a probe of the test board to contact the wafer so as to test the wafer.

The invention belongs to the technical field of information, and particularly relates to an industrial control network fault detection method, device and system. The method is realized by constructing a unified protocol specification. Different from a traditional deep packet detection method, a protocol specification aims at a proprietary application layer protocol, only the effective load of a data packet is processed during operation, and the complexity brought by matching of multiple rules is reduced. The construction of the special protocol specification also brings flexibility, the analysis depth of different granularities is constructed for the specific industrial control application layer protocol, different applications can be distinguished in the flow semantic analysis process, and the unique protocol specification is used according to the actual application scene, so that the difference caused by different application granularities is avoided.

The invention discloses paint spraying equipment for furniture processing. The paint spraying equipment comprises a reciprocating paint spraying machine; the reciprocating paint sprayer comprises a base. Side plates are mounted on two sides of the base at the top of the base; rotating rollers which are uniformly arranged are rotationally connected between the two side plates; a case is jointly mounted on the two side plates; a reciprocating spraying mechanism is mounted in the case; the reciprocating spraying mechanism comprises two U-shaped plates with opposite openings; the ends of the two sides of the two U-shaped plates are jointly and fixedly connected with a mounting plate. A first screw rod is fixedly connected between the two mounting plates; a driving box is slidably connected between the two U-shaped plates; a spray head is mounted at the bottom of the driving box; the first screw rod penetrates through the interior of the driving box; and a turning mechanism is arranged in the driving box. By arranging the reciprocating spraying mechanism, the stroke of reciprocating motion of the driving box and the spray head can be automatically adjusted, and the stroke of reciprocating motion of the spray head does not need to be manually adjusted.

The present invention provides a method for online automatic cutting control of continuous casting billets, comprising the following steps: real-time acquisition of runner furnace start and end position information and cutting plan information; real-time acquisition of billet information in the runner, i.e., remaining billet length, predefined casting length information corresponding to the billet head and the billet tail calculated according to the steel type or production plan and optimization event; real-time acquisition of cutting information in the runner, recording the casting length during cutting and the position information of the cutter; real-time acquisition of photoelectric detection information in the runner, when the photoelectric detection signal changes from on to off, the billet head just reaches the photoelectric detection point, and the difference between the tracking billet length value and the actual billet length corresponding to the detection point is recorded as the correction length; according to the cutting plan or the cutting length after cutting optimization, a suitable correction point and a corresponding correction value are selected, and the tracking billet length is obtained according to the correction value, and when the tracking billet length reaches the predetermined requirement, the pre-pressing and main pressing instructions are issued to realize automatic cutting control.

The utility model relates to a smell host which comprises a shell, a mainboard, a CPU module, a three-way valve control module, an air pump control module, a smell acquisition card and a signal connector used for being connected with external equipment. The mainboard is fixedly arranged in the shell, and a clamping groove is formed in the mainboard; the CPU module is fixedly arranged on the mainboard; the three-way valve control module is fixedly arranged on the mainboard and is electrically connected with the CPU module; the air pump control module is fixedly arranged on the mainboard, and the air pump control module is electrically connected with the CPU module; the smell acquisition card is inserted into the card slot and is electrically connected with the CPU module; and the signal connector is arranged on the mainboard and is electrically connected with the CPU module. According to the utility model, the air pump and the three-way valve can be controlled to work to realize sample gas flow control, so that the operation is more standard, the test result is more reliable, the distinguishing and measuring quality is improved, and the distinguishing and measuring efficiency can be improved; maintenance is convenient, and maintenance cost is effectively reduced.

The present application relates to the technical field of casting processing device, specifically relates to a copper alloy precision casting multi-station processing device and processing mode, the processing device includes parts and multi-station fixing parts, the multi-station fixing parts include the bottom plate, the fixed plate being arranged on the bottom plate, the angular fixing assembly being arranged on the side of the fixed plate and the axial clamping assembly being arranged on the bottom plate are fixed to the multi-station fixing parts;The angular position of the part is fixed through the angular cylinder control clamping plate and convex body sliding clamping, and the axial position of the part is fixed by using the clamping cylinder, so that one-time multi-piece processing can be realized, the difference of traditional manual clamping by different operators is solved, the yield is improved, the production cycle is reduced, and the production cost is reduced.

The application relates to a hand-off detection method and device. The method comprises the following steps: acquiring a hand force torque value corresponding to a steering wheel and a response torque value; acquiring a zero offset compensation value, which is used for offsetting the influence of zero point bias of a torque sensor on a resultant torque of the hand force torque value and the response torque value; determining a target resultant torque according to the hand force torque value, the response torque value and the zero offset compensation value; judging whether the target resultant torque is greater than a first threshold value; and if not, determining that a driver has taken off the steering wheel. The scheme provided by the application can overcome the difference between different vehicles, improve the accuracy of hand-off detection, and reduce the false positive rate and the false negative rate.

The invention discloses a ternary material coating and washing system which comprises an additive grinding device, a coating and washing device and a water temperature control device.The additive grinding device comprises a first storage tank, a sand mill and a second storage tank which are connected in sequence, the sand mill is used for grinding and refining additive particles during wet coating, and the second storage tank is used for storing the additive particles; the second storage tank is provided with a jacket; the coating and washing device comprises a mixer, a screw feeder and a material measuring bin, the feeding speed of materials in the material measuring bin is adjusted through the screw feeder, then the materials enter the mixer, and a liquid flow sensor is arranged at the joint of the second storage tank and the mixer; the water temperature control device comprises a chilled water storage tank and a refrigerator, the chilled water storage tank is connected with the mixer and the second storage tank, and chilled circulating water is introduced into the mixer and the second storage tank. The system disclosed by the invention can be used for coating or washing the ternary material, the investment of equipment is reduced, the washing / coating effect is good, and meanwhile, the production efficiency can be improved.

The present invention belongs to the field of signal detection technology, and specifically relates to an online detection method for a target signal and an epilepsy detection system. The online detection method for the target signal includes: signal detection to obtain a target signal set and its corresponding signal template; signal extraction, i.e., extracting the target signal using the waveform characteristics of the online signal; iterative optimization, i.e., adjusting the matching threshold between the target signal and the signal template according to the extraction result of the target signal to screen the target signal and update the target signal set. The detected characteristic parameters are corrected using the extraction result of the target signal to iteratively optimize the target signal set obtained by the signal detection. Iterative optimization can be performed online without the need for historical data or machine learning, and the target waveform can be extracted more comprehensively and accurately.

The invention discloses a differential gear clearance measurement system; the system comprises a measuring platform, a measuring device, a computer, a data acquisition instrument and a voltage-stabilized power supply; the expansion sleeve of the invention is firmly connected to the half-axle gear; the system is placed vertically, and multi-angle measurement is interference-free; the fixed platform is professional and reliable; the sensor data acquisition instrument is used to collect data, and the computer processes the data, so as to solve the differences between measurement personnel, limit the errors of multiple measurements to within 3%, and greatly shorten the measurement time.

The utility model relates to the technical field of paper diaper production, discloses an atomization coating device for a breathable film layer of a paper diaper, and aims to solve the problems that in the prior art, the breathable film layer of the paper diaper vibrates in the conveying and gluing process, so that the thickness of a glue layer on the surface of the breathable film layer of the paper diaper is different, and the quality of the paper diaper is influenced. And the coating quality of the breathable film is reduced. The atomization coating device comprises an installation frame, an atomization head is installed in the installation frame, an unwinding roller is rotatably installed on the outer surface of the installation frame in a penetrating mode, a motor is installed on the outer surface of the installation frame, the output end of the motor is fixedly connected with the unwinding roller, and two gear rollers are rotatably installed on the outer surface of the installation frame in a penetrating mode. The support for the breathable film of the diaper is achieved, the stability of the breathable film of the diaper during atomization coating is guaranteed, the situation that the thickness of an adhesive layer is different due to vibration during coating of the breathable film of the diaper is prevented, and the coating quality of the breathable film is guaranteed.

The application discloses a loudspeaker and a sound production device, the loudspeaker comprising a magnetic circuit system and a vibration system. The magnetic circuit system comprises an inner magnetic circuit and an outer magnetic circuit, the outer magnetic circuit and the inner magnetic circuit are arranged in a spaced manner and enclose a magnetic gap in a spherical shape; the vibration system comprises a diaphragm and a voice coil, the diaphragm is arranged in the magnetic gap, the diaphragm comprises a plurality of vibration parts distributed in a spaced manner along an axial direction of the magnetic circuit system, the vibration parts are arranged in an extending manner along a circumferential direction of the magnetic circuit system, the vibration part comprises a first diaphragm and a second diaphragm connected and arranged in a spaced manner along the axial direction of the magnetic circuit system, and the voice coil is arranged in the plurality of vibration parts, the voice coil is used for driving the first diaphragm and the second diaphragm in each vibration part to approach or move away from each other when powered. The technical scheme of the application enables the loudspeaker to produce sound in different directions, avoids the difference in sound production effect at different positions in the circumferential direction, and thus improves the user experience of the loudspeaker.

The utility model discloses a full-automatic ice cream machine which comprises a shell; the discharging valve is arranged on one side of the shell, and an infrared sensor is installed at the position, corresponding to the discharging valve, of one side of the shell; the material taking device comprises a shell, a transparent cover and a movable door, the transparent cover is arranged on one side of the shell, a taking opening is formed in the middle of the transparent cover, and one side of the taking opening is connected with the movable door in a sliding mode. The material taking device has the advantages that the positions of the material taking ring on the X axis, the Y axis and the Z axis can be accurately positioned through control of a plurality of electric telescopic rods, accurate material taking and discharging operation is guaranteed, and the material taking device is convenient to use and high in practicability. According to the ice cream machine, the operation of taking down the cone, grabbing and safely sending out the ice cream and the like is achieved, automatic operation reduces the requirement for manual operation, the production efficiency is improved, meanwhile, operation errors and risks are reduced, and materials can be rapidly and accurately taken, the ice cream can be rapidly and accurately made, and the ice cream can be sent out.

The invention provides a method and a device for evaluating the transient support capability of an energy storage power station to a power grid, and the method comprises the steps: calculating the weight of an index value after the dimensionalization processing through different weighting methods, and optimizing the weight of the index value after the dimensionalization processing, and the transient support capability of the energy storage power station on the power grid is evaluated according to the obtained combination weight of each evaluation index. It can be seen that different weights obtained by different weighting methods are comprehensively considered, the upper layer adopts at least two weighting methods to calculate the weight of the index value after the dimensionalization processing, and the lower layer optimizes the weight of the index value after the dimensionalization processing to obtain the combined weight of each evaluation index. That is to say, the combined weight of each evaluation index is obtained by adopting the double-layer combined weighting, the precision of the evaluation result is improved, and the reliability of the energy storage power station for evaluating the transient support capability of the power grid can be further improved.

According to the present disclosure, there is provided an imaging device, comprising: a first semiconductor layer (180) formed on a semiconductor substrate; a second semiconductor layer (170) formed on the first semiconductor layer (180) and having a conductivity type opposite to that of the first semiconductor layer (180); a pixel separation portion (150) dividing a pixel region including the first semiconductor layer (180) and the second semiconductor layer (170); a first electrode (130) connected to the first semiconductor layer (180) from one surface side of the semiconductor substrate; and a metal layer (152) connected to the second semiconductor layer (170) from a light irradiation surface side of the other surface of the semiconductor substrate, wherein the metal layer (152) is buried in the pixel separation portion (150) at least partially in the thickness direction of the semiconductor substrate.

The invention discloses a tunnel surrounding rock breaking degree intelligent identification method, and relates to the technical field of geological engineering and image processing, and the method comprises the steps: image preprocessing, including noise removal and image enhancement; feature extraction, including edge detection; the image segmentation comprises threshold segmentation; feature analysis, including crack analysis, contrast analysis and homogeneity analysis; the method has the beneficial effects that the identification efficiency and accuracy can be effectively improved, and an important guarantee is provided for safe construction of tunnel engineering.

The application relates to a clock-drawing test scoring method and device, computer equipment and a storage medium. The method comprises the following steps: inputting a clock-drawing image dataset into an FCOS network to identify handwritten numerals in the clock-drawing image dataset; performing circle detection on the clock-drawing image dataset by using a maximum connected domain algorithm to obtain a clock region; based on the identification result of the handwritten numerals and the detection result of the clock region, performing pointer detection on the clock-drawing image dataset by using an image processing algorithm to obtain a pointer image of the clock-drawing image dataset, and performing hour hand and minute hand classification on the pointer image by using a breadth-first algorithm; scoring the handwritten numeral identification result, the clock region detection result, the pointer image detection result and the hour hand and minute hand classification result according to a set scoring rule, and adding all the scoring results to generate a clock-drawing test scoring result. The application can avoid evaluation fluctuations and differences caused by subjectivity and bias of artificial evaluation.

The invention provides a program testing method, a readable storage medium and a program product. The method comprises the following steps: in response to starting a program test on tested software, detecting a user interface of the tested software to obtain user operation information; analyzing the user operation information to obtain a keyword of an operation event in the user operation information; obtaining a predefined test code template, and filling the test code template according to the keyword to generate a unit test case; and running the unit test case to perform program testing on the tested software. According to the technical scheme, the time cost and the labor cost of program testing can be reduced, and the reliability of a program testing result is improved.

The present invention provides a moisture permeable cup tightening device, a tightening instrument and a tightening method. The moisture permeable cup comprises a receiving part and a pressing part, the pressing part is used to press the sample onto the receiving part, and the tightening device comprises: a fixing seat, a tightening part, a connecting piece and a driving mechanism; the fixing seat is provided with a first tenon matched with a first groove at the bottom and / or side of the receiving part, one side of the tightening part is connected with the connecting piece, and a second tenon matched with a second groove of the pressing piece is provided on the side of the tightening part away from the connecting piece; a torque sensing element is connected to the fixing seat, the connecting piece is connected with the driving mechanism, and the connecting piece can drive the tightening part to rotate under the cooperation of the driving mechanism, and then drive the pressing part to rotate and press onto the receiving part; the present invention can automatically clamp the sample with the torque specified by the operator, so as to avoid test errors caused by different clamping forces of the sample.

The invention discloses an optimal control system based on direct air cooling temperature field analysis data, and relates to the technical field of air cooling control, the optimal control system comprises a base, a control system, a mechanical arm, a mounting and dismounting mechanism, a humidity detection mechanism, a wind speed detection mechanism and an industrial camera, the right end of the top of the base is fixedly connected with the control system; a mechanical arm is fixedly connected to the center of the top of the base, a mounting and dismounting mechanism is fixedly connected to the left end of the bottom of the mechanical arm, a humidity detection mechanism is fixedly connected to the left end of the bottom of the mechanical arm, and a control system is arranged. Therefore, the optimal operation effect is realized; the mounting and dismounting mechanism is arranged, a second electromagnetic block is inserted into the temperature detection mechanism for magnetic adsorption, the temperature detection mechanism is mounted and dismounted, the accuracy and stability of the temperature detection mechanism in the use process are ensured, and the temperature detection mechanism is prevented from being damaged to affect the accuracy of data acquisition and analysis of the system.

The utility model discloses a detachable predatory mite overwintering habitat device, including the protection box, still including the fixed plate and humidification subassembly, the fixed plate is fixedly connected with the protection box inner wall, is provided with the habitat box on the fixed plate upper end, is provided with the second groove in the fixed plate upper end, the inner wall sliding of second groove is provided with the sliding block, and the first spring is fixedly connected between the sliding block and the inner wall of second groove, the buckle is fixedly connected with the sliding block upper end, is provided with the clamping groove in the habitat box lower end edge, and the humidification subassembly is arranged on the protection box upper end. The utility model discloses through the buckle of pushing habitat box and drives the sliding block to move to the inside, makes the buckle of both sides all to enter the inside of clamping groove, then through the press down habitat box of afterwards and makes the buckle with clamping groove complete adaptation, makes the buckle with clamping groove closely under the action of first spring, avoids the habitat box and appears the situation of deviation, through the press of the convex of sliding block upper end can with habitat box disassembly, thereby can conveniently maintain and adjust habitat box, improves the overwintering survival rate of predatory mite.

The utility model relates to the technical field of internal mixing, in particular to high-flowability vulcanization capsule sizing material internal mixing equipment which comprises a fixed base and an internal mixer body and further comprises a feeding assembly, the feeding assembly comprises a fixed frame, a concentration frame, a connecting guide pipe, a butt joint pipe, an eduction pipe, a control valve, a measuring cylinder, a scale sticker and a supporting component, and the fixed frame is fixedly connected with the fixed base; the centralizing frame is fixedly connected with the fixing frame, the connecting guide pipe is respectively connected with the centralizing frame and the internal mixer body, the butt-joint pipe is connected with the centralizing frame, the eduction pipe is arranged on the butt-joint pipe, the control valve is arranged on the eduction pipe, the measuring cylinder is connected with the eduction pipe, the scale paste is fixedly connected with the measuring cylinder, and the supporting component is arranged on the centralizing frame and connected with the measuring cylinder. Added raw materials and compounding agents are accurately proportioned through the measuring cylinders and the scale stickers and then guided into the internal mixer body to be mixed, and therefore the situation that large difference exists between rubber materials mixed in different batches is avoided.

The invention provides a device and a method for improving the anti-interference capability of an ultra-wideband impulse fuse, and belongs to the technical field of ultra-wideband impulse fuses. The device comprises a signal transmitting module, a fuze antenna, a signal receiving module, a signal processing module and a microprocessor which are electrically connected in sequence, according to the method, a signal transmitting module radiates a pulse signal through a fuze antenna and then receives the pulse signal returned after radiation through the fuze antenna, and a detection channel and an anti-interference channel in a signal receiving module process the pulse signal; the microprocessor judges echoes output by the anti-interference channel for the pulse signals respectively so as to output starting signals of the proximity fuze, and the anti-interference capability of the ultra-wideband impulse fuze can be improved.