46results about How to "Purpose and benefits are concise and easy to understand" patented technology

The invention relates to an elbow pipe three-dimensional scanning detection method, a three-dimensional scanning system, computer equipment and a computer readable storage medium, and the elbow three-dimensional scanning detection method comprises the steps: scanning a target bent pipe through a scanner, and obtaining first three-dimensional point cloud data of the target bent pipe under a first coordinate reference system; synchronously tracking the position and posture of the scanner during each scanning through a tracker to obtain the posture data of the scanner under the second coordinatereference system; according to the pose data, converting the first three-dimensional point cloud data into a second coordinate reference system to obtain second three-dimensional point cloud data under the second coordinate reference system; and detecting characteristic parameters of the target elbow according to the second three-dimensional point cloud data. According to the invention, the problem of low detection efficiency of the bent pipe characteristics in the related technology is solved, and the detection efficiency of the elbow characteristics is improved.

The invention relates to a CT scanning method, and the method comprises the steps: obtaining a real-time monitoring image of a region of interest after a contrast agent is injected, and the region of interest at least comprises a first target region and a second target region; acquiring a CT value change condition of the region of interest based on the real-time monitoring image; and performing CT scanning on the region of interest based on the CT value change condition. According to the method and the device, the problems that in multi-phase or multi-part enhanced scanning in related technologies, a traditional threshold tracking technology can only measure the CT value of one part or phase to determine the scanning time, and other parts or phases can only be judged depending on experience and are not accurate enough are solved. According to the method, the scanning triggering time point with the best scanning effect of each part can be accurately determined in multi-part or multi-phase enhanced scanning, the optimal image data can be obtained, and the risk of dosage increase caused by repeated scanning due to inaccurate scanning triggering time points can be avoided.

The invention relates to a WEB application access proxy method, device and system based on domain name generic analysis, and the method comprises the steps: carrying out the rewriting of a secondary domain name in an original domain name of a WEB application, and enabling a url corresponding to each generated new domain name to uniquely represent an access request; forwarding an access request of a user to the WEB application in a domain name resolution mode; analyzing the new domain name in the access request to obtain an original domain name, and requesting an application service from a target website according to the original domain name. According to the method and the system, the request of a user for accessing a certain WEB application is intercepted in a generic domain name resolution mode, all flows matched with a generic domain name format point to the proxy server, and then the proxy server requests application service from a target website, so the problem of drainage is solved.

The invention provides a multi-target detection method and device and application thereof. The method comprises the steps of obtaining a to-be-detected image; inputting the to-be-detected image into a multi-target detection model to obtain a detection result; wherein the multi-target detection model comprises a backbone network, a neck module and a prediction head which are connected in sequence; each trunk layer is used for obtaining a second feature map with multi-scale feature information and after channel attention weighting; the neck module is used for performing feature aggregation on the second feature maps output by different trunk layers to obtain an aggregated feature map; the prediction head is used for performing multi-target detection according to the aggregated feature map. The method not only can extract multi-scale feature information, but also can flexibly adjust the parameters of the convolution kernel according to different sizes of the input to-be-detected image, more effectively extract finer-grained multi-scale space information, establish a longer-distance channel dependency relationship, and improve the detection accuracy. And adaptively carrying out feature calibration on the multi-scale channel attention vector again.

The invention relates to a low-power-consumption target monitoring device, a control method and a low-power-consumption target monitoring system. The monitoring device comprises an infrared sensor used for monitoring a target object and transmitting a first monitoring signal; a radar sensor used for monitoring the target object and sending a second monitoring signal; a latch electrically connected with the infrared sensor and / or the radar sensor, and used for receiving the first monitoring signal and recording the first monitoring signal as a first level signal, and / or receiving the second monitoring signal and recording the second monitoring signal as a second level signal; and a controller used for receiving the first monitoring signal, the second monitoring signal, the first level signal and the second level signal and controlling the working state of the infrared sensor or the radar sensor based on preset control logic according to at least one of the first monitoring signal, the second monitoring signal, the first level signal and the second level signal. According to the application, intermittent monitoring of the infrared sensor and the radar sensor is controlled by applying the latch, so that the standby working time of the system is greatly prolonged.

The invention provides a manhole cover anomaly detection method. The manhole cover anomaly detection method comprises the steps of obtaining a road surface video image containing image depth information, an inclination angle of shooting equipment when the road surface video image is shot, and an internal reference coefficient of the shooting equipment; obtaining a well lid image and a well lid state from the road surface video image, and calculating the deformation depth or deformation height of each image point after the well lid image is subjected to rasterization according to the inclination angle and the internal reference coefficient of the shooting equipment and the image depth information; and based on the deformation depth or deformation height of each image point, judging whether the well lid is abnormal or not in different well lid states. According to the method, a road surface video image containing image depth information is collected, a well lid image is obtained from the road surface video image, the well lid state is detected and obtained, the deformation depth or the deformation height of each image point is calculated, and then whether the well lid is abnormal or not in different well lid states is judged according to the deformation depth or the deformation height of each image point.

The invention relates to a back-end application calling method and device, computer equipment and a readable storage medium, and the method comprises the steps that when a back-end application is started, a third-party component writes a mapping relation between the back-end application and a url into a database, wherein the back-end application is accessed to the third-party component, and the third-party component specifies the url corresponding to the metadata of the back-end application in an annotation form; receiving an http request of a user, and analyzing the http request to obtain a url in the http request; performing path matching according to the url of the http request, and performing matching in a database to obtain metadata of a back-end application corresponding to the url; according to the metadata of the back-end application, carrying out dubbo calling; and after the return value called by the dubbo is returned, converting the return value into the return value of the http request through reflection according to the information of the return value in the metadata. The whole process does not need any manual configuration, and the problems that back-end service changes cannot be automatically sensed and the gateway generalization calls metadata acquisition are solved.

The invention relates to a fine-grained sentiment analysis method and system, computer equipment and a storage medium, and the fine-grained sentiment analysis method comprises the following steps: a vector acquisition step: inputting input text data into a shared network structure layer, in the shared network structure layer, acquiring a word vector, a word vector and a position vector according to the text data, obtaining a vector representation of the text data, and obtaining a feature extraction vector and an emotion vector according to the vector representation; an emotion probability vector acquisition step: inputting the feature extraction vector and the emotion vector into a non-shared network structure layer, and outputting an emotion probability vector of a corresponding aspect; and an emotion label obtaining step of obtaining a final emotion label according to the emotion probability vector. According to semantic information obtained by a Bert model based on a self-attention mechanism and text features of sentence levels obtained by performing feature extraction on a whole text sequence, the recognition capability of a network structure on an aspect emotion direction is enhanced.

The invention relates to a license plate recognition method and device, computer equipment and a computer readable storage medium, and the method comprises the steps: obtaining a video, and detectinga target license plate image in an image frame of the video; performing quality classification on the detected preset attribute of the target license plate image in each image frame to obtain a quality classification result; determining a quality score of the target license plate image in each image frame at least according to the quality classification result; and screening the target license plate image according to the quality score, and performing license plate recognition according to the screened target license plate image. Through application of the method and the device, the problem that a license plate recognition technology in related technologies is relatively high in computing resource load is solved, and the technical effect of reducing the computing resource load is realized.

The invention relates to a data query method and device, an electronic device and a storage medium, and is applied to an HBase database, the method comprises the steps that a first data record is acquired from the HBase database, the first data record comprises a primary key and data corresponding to the primary key, and the data corresponding to the primary key comprises a plurality of columns; the first data record is converted into a second data record of the relational database, and the second data record takes a primary key and a column name of at least one column as fields; generating an index of a field corresponding to each column name on the relational database; performing data query in the relational database based on the index to obtain a third data record hitting a preset query condition in the second data record; and acquiring a data record corresponding to the primary key of the third data record from the HBase database. Through the method and the device, the problem of low efficiency when multi-condition query is carried out in the HBase database in related technologies is solved, and the technical effect of improving the efficiency when the multi-condition query is carried out in the HBase database is realized.

The invention relates to a plate spring strength analysis method and system, a readable storage medium and computer equipment. The plate spring strength analysis method comprises the steps that: a preset plate spring model is obtained, griding processing is conducted on the plate spring model, and if the number of plate spring pieces is larger than 1, self-contact setting is conducted on the plate spring pieces; constraint processing is performed on the plate spring model; according to a vehicle durability road test, six wheel center components are collected and loaded into the whole vehicle multi-body dynamic model, a load spectrum of the plate spring model is obtained, multiple working conditions are preset, the load spectrum is analyzed and processed, and the strength load of the plate spring seat is obtained; and the obtained strength load is input into a finite element model for checking. According to the invention, the problem that the stress condition of the plate spring cannot be comprehensively analyzed in the traditional plate spring strength analysis process is solved, so that the stress analysis of the plate spring is more accurate.

The invention relates to a millimeter wave radar, an antenna switching method of the millimeter wave radar, an electronic device and a storage medium. The millimeter wave radar comprises a millimeter wave radar chip, a radio frequency switch, a transmitting antenna and a receiving antenna. Wherein the millimeter wave radar chip comprises at least one transmitting channel and at least one receiving channel, the input end of each receiving channel is connected with one receiving antenna, and the output end of each transmitting channel is connected with the input end of one radio frequency switch; the radio frequency switch comprises a plurality of output ends, and the output end of each radio frequency switch is connected with one transmitting antenna; wherein the millimeter wave radar chip is used for transmitting unit waveform signals to the radio frequency switch through the transmitting channel so as to adjust the working time sequence of each transmitting antenna connected with the radio frequency switch. According to the invention, the problem that the millimeter-wave radar system cannot give consideration to high-resolution and high-coverage detection in the prior art is solved, and the technical effect of improving the detection resolution and coverage of the millimeter-wave radar system is achieved.

The invention relates to an endoscope image noise reduction method and device, an electronic device and a storage medium, and the method comprises the steps: carrying out the multi-scale geometric transformation of a target region in a Laplacian image of an endoscope image, and obtaining a low-frequency coefficient of the target region; performing enhancement calculation on the low-frequency coefficient according to the enhancement coefficient to obtain a corrected low-frequency coefficient; performing inverse transformation of multi-scale geometric transformation on the pixel value of the target pixel according to the corrected low-frequency coefficient to obtain a denoised target pixel; and obtaining a denoised Laplacian image according to the denoised target pixel, and fusing the denoised Laplacian image with a corresponding Gaussian image to obtain a denoised endoscope image. According to the method and the device, the problem that the edge information in the endoscope image is lost by adopting a noise reduction method of a common camera image in the related technology is solved, the information of the edge area of the endoscope image is reserved, and the image loss is reduced.

The invention relates to a conference personnel detection method and system and a computer storage medium. The conference personnel detection method comprises the steps of obtaining the information of conference participants, specifically, obtaining a personnel information library of the conference participants from an existing face library according to conference invitation information, wherein the personnel information library at least comprises names, facial features and anti-counterfeiting marks of conference participants; detecting the conference participants, specifically, performing face acquisition on each conference participants through an image acquisition device to obtain a face image, and judging whether the face image exists in the personnel information library or not through a face recognition technology according to the face image; and judging whether the source of the face image is a real person or not through an anti-counterfeiting identification technology, if the two kinds of identification pass, allowing the participant to enter, otherwise, refusing to enter the conference and notifying a manager. Conference entrance detection is carried out through the face recognition technology and the face anti-counterfeiting technology, and the situation that a face model serves as a face and misrecognition occurs is prevented.

The invention relates to an image processing method and device, an electronic device and a storage medium. The image processing method comprises the following steps: acquiring an image effect block to be processed in an image; the similarity between the to-be-processed image effect block and an image block in a preset search box is determined, a target similar block is obtained, and the target similar block is the image block with the minimum similarity with the to-be-processed image effect block in the preset search box; under the condition that the similarity between the target similar block and the to-be-processed image effect block is larger than the preset similarity, image information corresponding to the to-be-processed image effect block is kept, and the image information comprises pixel information and position information of the to-be-processed image effect block. Through the method and the device, the problem of high complexity of an image algorithm in related technologies is solved, and the complexity of the image algorithm is reduced.

The invention relates to a securities market transaction behavior monitoring method and device and a storage medium. The method comprises the steps of obtaining multiple pieces of ledger data in a first securities transaction period; generating a delegation event interface component corresponding to each piece of ledger data according to the ledger data, wherein the delegation event interface component comprises a first interface element and a second interface element; setting a first area and a second area in a graphical user interface, sequentially rolling the ledger data one by one in the first area according to the sequence of ledger recording time, playing the delegation event interface component in the second area in conjunction, and when the ledger recording type is changed in the current ledger data, updating the display state of the associated delegation event interface component. The method solves the problems of low readability and difficult tracing of the securities market transaction behavior detection result in the related technology, and realizes the beneficial effect that the securities market transaction behavior detection result is readable and traceable.

The invention relates to a password authentication method and system, an electronic device and a storage medium, and the method comprises the steps: generating a first random number in response to a login request of a user; receiving a second random number, a salt value and a cycle number returned by the server, and generating a client authentication certificate; obtaining a signature abstract and a client signature based on the client authentication credential, and sending the client signature and the client authentication credential to a server for signature verification; and receiving a first server authentication certificate returned by the server, performing HMAC-SM3 calculation on a first key generated by the server in a registration stage, generating a second server authentication certificate, and authenticating the server successfully under the condition that the first server authentication certificate is consistent with the second server authentication certificate. Through the password authentication method and device, the problem that the password is easily attacked and leaked in a password authentication process in the prior art is solved, and password security authentication is realized.

The invention relates to an access control method, device and equipment. The method comprises the following steps: acquiring first identity information provided by a plurality of persons to be identified; when it is determined that the first identity identification information is legal identity identification information, face images of the multiple to-be-recognized persons are obtained; when it is determined that the face images of the multiple to-be-recognized persons are matched with images in a preset face image set, second identity identification information corresponding to the face images of the multiple to-be-recognized persons is obtained; and according to the first identity identification information and / or the second identity identification information, determining whether to release the plurality of to-be-identified persons. According to the access control method provided by the embodiment of the invention, the legal identities of the plurality of to-be-identified personnel are verified through at least three layers of checkpoints, so that the strict degree of access control and the safety of the access control are improved.

The invention relates to a control method, device and system of a multi-view camera, and an electronic device. The control method comprises the steps of: acquiring first output delays corresponding to a plurality of different image processing modules, wherein the image processing modules are matched with each data channel of the multi-view camera; controlling second output delays corresponding to a plurality of image sensors in the multi-view camera according to the first output delays, wherein the image sensor is matched with the data channels; and based on the second output delays, acquiring a multi-channel synchronous control result of the multi-view camera by a column time sequence alignment module. According to the control method, device and system of the multi-view camera, the problems that the accuracy of multi-view camera control is low, and resource waste is caused are solved, and the multi-view camera control method based on output time sequence control is achieved.

The invention provides a data verification method which comprises the steps that a to-be-processed file is acquired, at least one verification rule is configured for the to-be-processed file, and each verification rule is provided with a corresponding priority and a preset style; extracting a to-be-verified data set comprising at least one piece of to-be-verified data from the to-be-processed file; and sequentially selecting the verification rules according to the priority of each verification rule, traversing and verifying the to-be-verified data set according to the verification rules to determine unqualified to-be-verified data, and correcting each unqualified to-be-verified data in the to-be-processed file according to a preset style of the verification rules. According to the method, each verification rule is independent, and the verification sequence of the verification rules is specified for the to-be-processed file as required, so that the unqualified to-be-verified data is automatically queried and modified when the to-be-processed file needs to be verified by using a plurality of verification rules.

The invention provides an environmental sanitation facility setting method and device and application, and the method can automatically calculate the number of environmental sanitation facilities needing to be added and set point locations according to environmental sanitation event data and road data, thereby achieving the beneficial effect of reasonably optimizing the number and placement positions of the environmental sanitation facilities.

The invention relates to a battery voltage detection circuit, a vehicle and a mobile phone, and the battery voltage detection circuit comprises a voltage dividing module, a voltage following module and an A / D conversion module. An interface at one end of the voltage dividing module is connected with the output end of the battery, and the voltage dividing module is used for dividing the output voltage of the battery and inputting the divided voltage to the voltage following module; the voltage following module is connected with an interface at the other end of the voltage dividing module and is used for detecting the divided voltage and outputting a voltage detection signal; the voltage following module comprises a first transistor and a second transistor, one end of the first transistor is connected with the other end interface of the voltage dividing module, and the other end is connected with one end of the second transistor; the first transistor and the second transistor are complementary pair transistors, and the second transistor is a reverse cut-off device; according to the battery voltage measuring circuit, the problem that the A / D conversion module is awakened again is solved, and accurate measurement of the battery voltage is achieved.

The invention relates to a binocular living body face recognition method and device, an electronic device and a storage medium, and the method comprises the steps of obtaining a visible light image of a first camera device, and obtaining an infrared light image of a second camera device; performing face matching on the visible light image and the infrared light image according to a preset matching strategy to obtain first face information and corresponding second face information; performing living body recognition on the first face information and the second face information which are successfully matched; and when the living body recognition result is a living body, performing face recognition on the first face information in the visible light image. According to the invention, the problems that a user needs to cooperate with actions, the consumed time is long, and the method and the device are not suitable for public places such as security checks or attendance checks are solved, the face can be quickly and accurately recognized based on the obtained visible light image and infrared light image, excessive cooperation of the user is not needed, and the invention is suitable for the public places such as the security checks or the attendance checks.

The invention relates to a scanning data processing method and device, a scanning imaging system and a storage medium. The method comprises the following steps: acquiring target scanning data after data transfer operation, and generating a first check code based on the target scanning data; obtaining an initial scanning file, and decrypting the initial scanning file to obtain a corresponding second check code; the initial scanning file is an encrypted data file which is pre-stored in a database and corresponds to the target scanning data; comparing the first check code with the second check code, and performing data check according to a comparison result; and after the verification is passed, performing data processing based on the target scanning data. According to the method and the device, the accuracy of the verification result is improved, and all the target scanning data after the data transfer operation can meet the expectation and can be normally used.

The invention relates to a control method of a cooking utensil and the cooking utensil. The control method of the cooking utensil comprises the steps of: receiving pot judgment information sent by a detection assembly; controlling a base to heat the pot according to the pot judgment information, receiving a temperature value of a temperature sensor in the heating process, and generating temperature rise characteristic information according to the temperature value; and performing matching detection according to the pot judgment information and the temperature rise characteristic information, and controlling the base to stop heating the pot under the condition that the matching detection result is abnormal. According to the invention, the problem that the safety of a cooking utensil is low is solved.

The invention relates to an alarm information processing method and device, an electronic device and a storage medium. The alarm information processing method comprises the following steps: acquiring alarm information to be processed; determining the alarm type of the alarm information to be processed; matching a linkage plan corresponding to the alarm type from a preset database; and under the condition that the linkage plan corresponding to the alarm type is matched from the preset database, executing the linkage plan to process the alarm information. Through the method and the device, the problem of low alarm information processing efficiency in related technologies is solved, and the alarm information processing efficiency is improved.

The invention relates to a request path obtaining method and device, computer equipment and a storage medium, and the request path obtaining method comprises the steps of: obtaining a target annotation name, wherein the target annotation name at least comprises a controller class annotation name, and the controller class annotation name is an identifier of a request interface class file; obtaining an original file and reading a to-be-identified annotation name in the original file; comparing a to-be-identified annotation name in the original file with the target annotation name, and if at least one same annotation name exists in the to-be-identified annotation name and the target annotation name, marking the original file as a target file; and reading the annotation content in the target file, and obtaining a request path according to the annotation content. Through adoption of the invention, the problem that the accuracy of obtaining the request path is relatively low is solved, and the technical effect of accurately obtaining the request path is realized.

The invention relates to a video playback method and device, an electronic equipment and a storage medium. The method comprises the following steps: acquiring an interested image from a video; performing target identification on the interested image to obtain feature information of the interested image; obtaining a query condition, querying a picture with the interested image in the video according to the query condition and the feature information of the interested image, and determining a first picture with the interested image appearing for the first time and a second picture with the interested image appearing for the last time under the query condition; and adding the first video clip containing the first picture and the second video clip containing the second picture into a video playback list, and playing back the video clips in the video playback list. Through adoption of the method and the device, the problem that the behavior track of the target in the video is difficult to obtain in the related technology is solved, and the technical effect of quickly obtaining the behavior track of the interested target in the video is realized.

The invention provides a zoom lens calibration method and device, computer equipment and a storage device, and the method comprises the steps: determining a focal length interval corresponding to each calibration based on the hyperfocal length of a to-be-calibrated lens and the precision requirement of field angle detection; determining a focal length corresponding to each calibration based on the focal length interval; determining the object distance corresponding to each calibration based on the corresponding relationship between the focal length and the object distance of the to-be-calibrated lens; and calibrating the internal parameters and distortion parameters of the to-be-calibrated lens corresponding to the different object distances based on the images shot under the different object distances. The calibration focal length interval is matched with the precision requirement of field angle detection, and the problem that the fixed calibration focal length interval is too large or too small in the prior art is solved.

The invention relates to an optical locator precision detection device, system and method, an electronic device and a medium. The optical locator precision detection device comprises a mechanical arm, a motion assembly, a registration assembly and a control assembly, wherein the mechanical arm is connected with the motion assembly, the motion assembly is connected with the registration assembly, and the mechanical arm and the motion assembly are electrically connected with the control assembly, the mechanical arm is used for bearing the motion assembly; the movement assembly is used for driving the registration assembly to move; and the control assembly is used for controlling the motion assembly to move by taking a preset distance as a length unit, acquiring sampling position pairs obtained by acquiring the initial position and the stop position of the registration assembly in at least one movement process by the optical locator, and determining the precision of the optical locator according to at least one sampling position pair and the preset distance. According to the device, the problems of complicated operation and complicated calculation when the precision of the optical locator is detected in the prior art are solved, and the effect of simply and conveniently detecting the precision of the optical locator is realized.