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38results about How to "Reduce computing resource consumption" patented technology

Overlay convolutional network-based rolling bearing failure mode recognition method and device

The invention discloses an overlay convolutional network-based rolling bearing failure mode recognition method and device, and relates to the field of rolling bearing failure diagnosis. The method comprises the following steps of: extracting a time-frequency domain feature of a vibration signal of a state-known rolling bearing; normalizing the obtained time-frequency domain feature of the state-known rolling bearing into a feature pixel according to a CNN network input format; inputting the feature pixel into a CNN network, and adjusting a model parameter of the CNN network through carrying out forward self-learning and gradient descent-based counter-propagation on the CNN network so as to obtain a trained CNN network; and during the recognition of a practical rolling bearing failure mode, extracting high-order features capable of reflecting intrinsic information layer by layer by utilizing the trained CNN network by taking a time-frequency domain feature of a vibration signal of a state-unknown rolling bearing, and inputting results of the feature self-learning into a top classifier layer by layer, so as to realize failure mode recognition of the rolling bearings under multiple working conditions and strong noises.
Owner:北京恒兴易康科技有限公司

Height measurement method and device of highway height permitted frame for vehicle based on binocular vision

InactiveCN110207650AMeet the real-time requirements of security warningsGuaranteed accuracyImage enhancementImage analysisMeasurement deviceDriver/operator
The invention discloses a height measurement method and device of a highway height permitted frame for a vehicle based on binocular vision. Two wide-angle cameras and a binocular vision system are used for shooting, tracking and locating a height permitted beam target in real time, the binocular vision system is used for measuring the distance from the vehicle to the height permitted frame and therelative height of a vehicle roof in real time, early warning information is provided for drivers, driving and road traffic safety are ensured, a space geometry relation is used for calculating the height of a road frame and the distance between the vehicle and the road frame, the height measurement method and device have the advantages of being high in computing speed and less in calculation resource consumption, the real-time requirements of vehicle safety early warning are effectively met, a limit constraint binocular correction method is adopted to reduce the matching search space, two-dimensional search is reduced to one-dimensional search, the advantage of high matching speed is realized, a checkerboard calibration method is adopted, the internal parameters of the camera can be obtained effectively, and the accuracy of image depth data calculation can be ensured.
Owner:重庆迪星天科技有限公司

Self-adaption rapid narrow-band interference suppression device

The invention discloses a self-adaption rapid narrow-band interference suppression device, which comprises one or more DFT (discrete fourier transformation) modules, an interference suppression module, an interference capturing control module and an interference tracking control module. Firstly, a narrow-band interference signal is captured by the steps of: controlling the DFT module to carry out narrow-band interference frequency detection on an input signal through the interference capturing control module by employing a multi-stage DFT frequency detection algorithm, initializing and starting the interference suppression module to filter a plurality of narrow-band interferences after the narrow-band interferences are detected; and then, the narrow-band interference signal is tracked by the steps of: utilizing the interference tracking control module to control the DFT module to carry out detection tracking on the detected narrow-band interference frequency, and updating a coefficient of an IIR (intermodulation intercept point) wave trap in the interference suppression module, so as to carry out self-adaption tracking and suppression to the narrow-band interferences. According to the invention, the plurality of narrow-band interferences can be rapidly detected, and interference frequency change can be continuously tracked. The self-adaption rapid narrow-band interference suppression device has the advantages that the implementation cost is small, the detection is rapid, and the frequency change of the narrow-band interferences can be tracked in a self-adaption tracking way.
Owner:杭州中科微电子有限公司

Tumor mutational load detecting method, device and storage medium

The invention provides a tumor mutational load detecting method, a device and a storage medium. The method comprises the steps of acquiring mutation frequency data of a single testing sample, whereinthe mutation frequency data comprise the site mutation frequency of a sample target area, comparing the site mutation frequency with a preset threshold for obtaining a mononucleotide mutation which ishigher than the threshold, and eliminating meaningless mutation in mononucleotide mutation for obtaining the number of effective mononucleotide mutations; acquiring Indel mutation frequency data of the single testing sample, wherein the Indel mutation frequency data comprises the Indel mutation frequency of the sample target area, comparing the Indel mutation frequency with a preset threshold forobtaining the number of the Indel mutations which are higher than the threshold; calculating the number of the tumor mutational load according to a number evaluation formula of the tumor mutational load, wherein the number estimation formula comprises the weight item of the number of the effective mononucleotide mutations and the weight item of the number of the Indel mutations. The method according to the invention accurately detects the TMB index of the lung cancer sample under a precondition of no dependence to a common database and a normal pairing comparison sample.
Owner:裕策医疗器械江苏有限公司

Method for actively providing personalized service, device, cloud server and automobile

ActiveCN111439268AMultiple personalized servicesMake up for the single perceptionCharacter and pattern recognitionDriver input parametersEngineeringDegree of similarity
The invention relates to a method for actively providing personalized service, a device, a cloud server and an automobile. The invention aims to realize a personalized service recommendation effect. The method comprises the following steps: receiving sensing information input by a multi-dimensional sensing module; inputting the sensing information into a preset rule model to judge whether one rulematched with the sensing information exists in the preset rule model or not; if so, outputting a first intermediate value; if not, inputting the sensinginformation into a locally stored user portraitmodel to obtain a second intermediate value; respectively carrying out similarity comparison on the first intermediate value or the second intermediate value and each intermediate value in a pre-stored standard recommendation instruction library, and determining one intermediate value with the highest similarity with the first intermediate value or the second intermediate value; determining a recommendation instruction corresponding to one intermediate value with the highest similarity in a standard recommendation instruction library as a target recommendation instruction; and according to the target recommendation instruction, controlling a related actuator on the vehicle to execute the target recommendation instruction.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Medical image picture analysis method and device, electronic equipment and readable storage medium

The invention relates to artificial intelligence, and discloses a medical image picture analysis method, which comprises the steps of training a pre-constructed deep learning network model by utilizing a preset part disease historical picture set to obtain a disease recognition model; constructing a distillation loss function according to the disease identification model and a pre-constructed initial diagnosis model; performing distillation training on the initial diagnosis model according to the distillation loss function to obtain a first diagnosis model; performing training and output adjustment on the first diagnosis model according to a preset diagnosis target to obtain a target diagnosis model; and when the to-be-analyzed medical image picture is received, analyzing the to-be-analyzed medical image picture by utilizing the target diagnosis model to obtain an analysis result. The invention further relates to a block chain technology. Data of the training model can be stored in theblock chain. The invention further provides a medical image picture analysis device, electronic equipment and a computer readable storage medium. According to the invention, the consumption of modelcomputing resources for medical image picture analysis can be reduced.
Owner:PING AN TECH (SHENZHEN) CO LTD

Long-term power-up equipment health state real-time anomaly detection method based on data driving

The invention discloses a long-term power-up equipment health state real-time anomaly detection method based on data driving, and the method comprises the following steps: 1, carrying out the data processing of power-up equipment data collected by long-term power-up equipment, obtaining observation data, carrying out the conversion or enhancement processing of the observation data, and obtaining effective measurement data; step 2, carrying out dimension reduction processing on the effective measurement data in the step 1 to obtain data after dimension reduction processing, and selecting important variables from the data after dimension reduction processing by adopting a random forest model and correlation analysis; 3, according to the important variables obtained through screening in the step 2, life features are obtained through time domain feature extraction and frequency domain feature extraction; smoothing the service life characteristics to obtain the service life characteristics of the power-on equipment; 4, according to the service life characteristics of the power-up equipment in the step 3, adopting a fault trend prediction algorithm based on multivariable clustering and principal component analysis to obtain a fault factor; and 5, establishing a fault prediction model according to the service life characteristics of the power-up equipment calculated in the step 3. According to the invention, the prediction accuracy and the robustness of the model are improved.
Owner:BEIJING INST OF ASTRONAUTICAL SYST ENG

Method and system for rapidly eliminating false detection for position detection patterns of QR code

The invention provides a method and a system for rapidly eliminating false detection for the position detection patterns of a QR code. The method comprises the following steps of: dividing a first sampling area above the upper edge of each position detection pattern, dividing a second sampling area below the lower edge of each position detection pattern, dividing a third sampling area at the left side of the left edge of each position detection pattern, and dividing a fourth sampling area at the left side of the right edge of each position detection pattern; acquiring the chromatic value of each pixel point in each sampling area, then counting the number of the pixel points belonging to the same chromatic value, and obtaining four histograms by taking the chromatic value as a transversal coordinate and taking the number of the pixel points as a horizontal coordinate; filtering and deriving the four histograms respectively, judging whether two histograms are histograms presenting single-peak characteristics, if so, then correctly detecting; or else, the detection is false detection. The method and the system are capable of simply and rapidly judging whether the positioned position detection patterns are correct, and further has the advantages of being low in calculation resource consumption, and high in positioning result accuracy.
Owner:BEIJING VISION BRILLIANCE TECH CO LTD

Encryption method and system based on error correcting code and low wheel AES

The invention discloses an encryption method and system based on an error correcting code and a low wheel AES. The related system comprises a low wheel AES encryption module and an error correcting code coding module. The low wheel AES encryption module is used for carrying out low wheel AES encryption on input data with an obtained AES superencipherment standard secret key, and AES ciphertext data are obtained. The error correcting code coding module is used for generating an error correcting coding secret key with a difference value length according to the difference value of an AES ciphertext data length and an error correcting code length, the error correcting code coding secret key and the AES ciphertext data are spliced and then are subjected to error correcting coding, and an error code coding result is obtained; and an error code coding secret key in the error code coding result is abandoned, and data obtained after encryption and error correction are obtained. According to the method and system, in applications which have error codes and need to be corrected, good AES encryption performance is achieved with small computing resource consumption (including CPU time consumption during software computing and area and power dissipation consumption during hardware computing).
Owner:UNIV OF SCI & TECH OF CHINA

Satellite component layout temperature field prediction method based on uncertainty

The invention discloses a satellite component layout temperature field prediction method based on uncertainty. The method comprises the following steps: S1, constructing a deep neural network model; s2, generating a training data set and a pool data set; s3, training a deep neural network model by using the training data set; s4, repeatedly performing temperature field prediction on each pool of data for multiple times by using the model, and calculating the variance of multiple prediction results; s5, setting the pool data in a descending order according to the variance, selecting a preset number of pool data located in the front order, taking the selected pool data and the corresponding temperature field as new training data to be added into the training data set, and deleting the selected pool data from the pool data set; s6, continuing to train the model; s7, judging whether the prediction precision of the model meets a preset requirement or not; and if not, repeatedly performing temperature field prediction on the data of each pool for multiple times by using the model, calculating the variance of multiple prediction results, and returning to the step S5. According to the invention, the high-precision agent model can be obtained through a small amount of training data, and the calculation cost is reduced.
Owner:NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI

Intersection motion planning method and device of automatic driving equipment, and electronic equipment

The invention discloses an intersection motion planning method of automatic driving equipment, belongs to the technical field of automatic control, and helps to save computing resource consumption during motion planning. The intersection motion planning method disclosed by the embodiment of the invention comprises the following steps of: acquiring a real-time joint state including state data of automatic driving equipment and state data of obstacles around the automatic driving equipment; determining a predefined event of joint state matching, wherein the predefined event includes: a controllable event indicating that an action needs to be taken; in response to the fact that a predefined event matched with the joint state is the controllable event, carrying out mapping processing from an event space to an action space on the joint state through a pre-trained reinforcement learning network, thus obtaining an action vector matched with the joint state; and performing motion planning on the automatic driving equipment based on the obtained action vector, thus saving calculation resource consumption during intersection motion planning, and improving the intersection motion planning efficiency of the automatic driving equipment.
Owner:BEIJING SANKUAI ONLINE TECH CO LTD

An encryption method and system based on error-correcting codes and low-round AES

The invention discloses an encryption method and system based on error-correcting codes and low-round AES. The related system includes: a low-round AES encryption module, which is used to perform low-round AES on input data by using the acquired AES Advanced Encryption Standard key. Encrypt to obtain AES ciphertext data; the error correction code encoding module is used to generate an error correction code encoding key of the length of the difference according to the difference between the length of the AES ciphertext data and the length of the error correction code, and convert the error correction code The code encoding key is spliced ​​with the AES ciphertext data to perform error correction encoding to obtain the error correction code encoding result; the error correction code encoding key in the error correction code encoding result is discarded to obtain the encrypted and error corrected data. The method and system disclosed in the present invention can achieve better performance with less computing resource consumption (including CPU time consumption during software calculation, area and power consumption during hardware calculation) in applications with bit errors and requiring error correction. AES encryption performance.
Owner:UNIV OF SCI & TECH OF CHINA

Mathematical formula positioning method and system, readable storage medium and computer equipment

The invention relates to a mathematical formula positioning method. The method comprises the following steps of obtaining a row minimum bounding rectangle of each row of characters from a to-be-identified document; obtaining a character minimum bounding rectangle of each character; dividing the minimum enclosing rectangle of the character into the minimum enclosing rectangle of the row; verticallycovering and combining the minimum enclosing rectangles of the characters in each row to obtain a minimum enclosing rectangle of the combined characters; according to the minimum enclosing rectangleof the combined character, adopting an interval mode method, and counting and analyzing the general area of the Chinese character; and processing the minimum enclosing rectangle of the combined character according to the general area of the Chinese character to obtain the minimum enclosing rectangle of the mathematical formula. According to the method, the minimum enclosing rectangle of the mathematical formula is obtained by combining the characteristics of the mathematical formula for processing, the algorithm complexity of the positioning method is low, the operation resource consumption isreduced, and the positioning speed is increased. The invention further relates to a mathematical formula positioning system, a readable storage medium and computer equipment.
Owner:广州寄锦教育科技有限公司

Tumor mutation load detection method, device and storage medium

The invention provides a tumor mutational load detecting method, a device and a storage medium. The method comprises the steps of acquiring mutation frequency data of a single testing sample, whereinthe mutation frequency data comprise the site mutation frequency of a sample target area, comparing the site mutation frequency with a preset threshold for obtaining a mononucleotide mutation which ishigher than the threshold, and eliminating meaningless mutation in mononucleotide mutation for obtaining the number of effective mononucleotide mutations; acquiring Indel mutation frequency data of the single testing sample, wherein the Indel mutation frequency data comprises the Indel mutation frequency of the sample target area, comparing the Indel mutation frequency with a preset threshold forobtaining the number of the Indel mutations which are higher than the threshold; calculating the number of the tumor mutational load according to a number evaluation formula of the tumor mutational load, wherein the number estimation formula comprises the weight item of the number of the effective mononucleotide mutations and the weight item of the number of the Indel mutations. The method according to the invention accurately detects the TMB index of the lung cancer sample under a precondition of no dependence to a common database and a normal pairing comparison sample.
Owner:裕策医疗器械江苏有限公司

Medical image analysis method, device, electronic equipment and readable storage medium

The present invention relates to artificial intelligence, and discloses a method for analyzing medical images, including: using a pre-built disease history picture set to train a pre-built deep learning network model to obtain a disease identification model; constructing a disease identification model based on the disease identification model and the pre-built initial diagnosis model Distillation loss function; perform distillation training on the initial diagnostic model according to the distillation loss function to obtain the first diagnostic model; perform training and output adjustment on the first diagnostic model according to the preset diagnostic target to obtain the target diagnostic model; when receiving the medical In the case of image images, the target diagnostic model is used to analyze the medical image images to be analyzed, and the analysis results are obtained. The present invention also relates to a block chain technology, and the data of the training model can be stored in the block chain. The invention also proposes a medical image analysis device, electronic equipment and a computer-readable storage medium. The invention can reduce the model calculation resource consumption of medical image analysis.
Owner:PING AN TECH (SHENZHEN) CO LTD
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