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38results about How to "Does not affect processing speed" patented technology

Computerized tomography (CT) image metal artifact correction method, device and computerized tomography (CT) apparatus

The invention provides a computerized tomography (CT) image metal artifact correction method, a computerized tomography (CT) image metal artifact correction device and a computerized tomography (CT) apparatus. The computerized tomography (CT) image metal artifact correction method comprises the following steps that: a metal projection range caused by an interference object is determined according to an original image corresponding to original projection data; diagnosis object projection data after the removal of the interference object are obtained based on metal projection data in the metal projection range, and after that, the original projection data are corrected and a model image is constructed based on the diagnosis object projection data; and secondary correction is performed on the original projection data according to the projection data of the model image, and reconstruction is performed based on corrected target projection data and according to clinically-used scanning and image construction conditions so as to obtain a metal artifact-free target image, and therefore, the purpose of metal artifact correction can be achieved. According to the computerized tomography (CT) image metal artifact correction method of the invention, the original projection data are adopted as a correction object, and therefore, the spatial resolution and low-contrast ability of a processed image can be ensured; and the original projection data completely contain all information of the interference object, and therefore, the introduction of a new artifact can be avoided.
Owner:SHANGHAI UNITED IMAGING HEALTHCARE

Method and system for transmitting and receiving data signal of site/access point in wireless local area network

The invention discloses a method and a system for transmitting and receiving a data signal of a site / an access point in a wireless local area network, which can maintain the high throughput of a communication link in the wireless local area network in the situation that the dynamic range of the power of a radio signal is wide. The main scheme comprises the following steps: A, presetting a plurality of gains, which can ensure a receiver to work stably, for a digital AGC loop; B, selecting a corresponding preset gain and performing fine-tuning on the corresponding preset gain when necessary according to the intensity of the data signal received by the site / the access point currently; and C, setting the transmission power of a transmitter and performing the fine-tuning on the transmission power when necessary according to the intensity of the data signal received by the site / the access point currently. According to the method, a special MAC frame is added to verify the data transmitting and receiving performance, and a special method is adopted to estimate the intensity of the data signal transmitted by a channel and to calculate the data receiving ratio of the site / the access point which can serve as quantitative data for judging the fading of the channel of a wireless link, and a reference frame of the communication efficiency of a device.
Owner:BEIJING LHWT MICROELECTRONICS

Fast detecting method and device for static vehicle target

The invention discloses a fast detecting method and device for a static vehicle target. The fast detecting method includes the following steps that images are collected, wherein vehicle images are obtained; the images are preprocessed, wherein normalization is conducted on the sizes of the vehicle images, and the vehicle images are converted into a grey-scale map; entropy information is extracted, wherein pixel level traversal is conducted on the images through search boxes, and pulse iteration average entropy information of the partial images in the search boxes is extracted; rough positioning is conducted on the vehicle target, wherein the images with the pulse iteration average entropy value larger than that the target entropy value are taken as vehicle target rough positioning images; the vehicle target is determined, wherein the vehicle image with the largest pulse iteration average entropy value in the same picture area is reserved as a target vehicle search result; the vehicle target is presented in an original large image, and positioning of the vehicle target is completed. According to the fast detecting method and device for the static vehicle target, robustness, rapidness and transportability of a pulse coupling neural network feature extraction method are used, the feature of the pulse iteration average entropy is selected as the judgment basis, and the speed of detecting the static vehicle target is greatly increased.
Owner:WUHAN INSTITUTE OF TECHNOLOGY

Prediction method and system for capacity of power battery in new-energy vehicle

The invention provides a prediction method and system for the capacity of a power battery in a new-energy vehicle, belonging to the field of power battery capacity of new-energy vehicles. The invention aims to solve the problem of how to improve the prediction efficiency of the capacity of the power battery in the new-energy vehicle. According to the invention, the charging condition data of multiple vehicles are collected through a big data platform; the charging condition data are screened according to a preset condition to respectively obtain a training target data set required by neural network training and a training input data set having high correlation with the power battery capacity; and neural network training is performed on the training target data set and the training input data set to establish a prediction model for the capacity of power batteries in the new-energy vehicles, the current charging condition data of a vehicle having a demand for power battery prediction capacity is acquired and substituted into the power battery capacity prediction model for the new-energy vehicles to calculate the predicted capacity of the desired vehicle power battery. According to the invention, the prediction model for the capacity of power batteries in the new-energy vehicles is established, and the capacity prediction efficiency of power batteries in the vehicles is improved.
Owner:ZHEJIANG GEELY HOLDING (GROUP) CO LTD +1

Authentication method for bank certificate printed with two-dimension code

The invention discloses an authentication method for a bank certificate printed with a two-dimension code. The surface of the bank certificate is printed with a bank certificate two-dimension code. The authentication method comprises the following steps of: 101. analyzing an element item contained in the bank certificate two-dimension code information; 102. selecting a detection area; 103. printing the two-dimension code and the detection area: printing the two-dimension code and the detection area in the vacancy of the bank certificate; 104: authenticating the bank certificate: comparing whether the corresponding element item information on the detection area and the bank certificate is consistent; if yes, proving that the two-dimension code information on the bank certificate is correct; and if no, proving that the two-dimension code information on the bank certificate does not conform to information in the bank certificate. With the authentication method, the element item in the two-dimension code information serves as the detection area to be printed on the certificate in a plaintext mode, and whether the element item in the two-dimension code and the element item of the certificate are consistent can be quickly judged so as to make up the deficiency that the bank certificate can not be directly authenticated.
Owner:SHENZHEN SINOINFO TECH DEV

Assembling equipment for assembling mobile phone shells and inserts and assembling method

The invention relates to the technical field of mobile phones, in particular to assembling equipment for assembling mobile phone shells and inserts. The assembling equipment comprises a working table, a conveying belt and a supporting frame, one side of the working table is fixedly provided with a plurality of support legs; the conveying belt is fixed to one side of the working table, the plurality of mobile phone shells are arranged on one side of the conveying belt, a blocking frame A is fixedly arranged on one side of the conveying belt, a blocking frame B is fixedly arranged on the side, away from the blocking frame A, of the conveying belt, and a single material pushing device is arranged on one side of the blocking frame B; and the supporting frame is fixed on one side of the blocking frame A. According to the assembling equipment for assembling the mobile phone shells and the inserts, through the arrangement of the blocking frame A, the blocking frame B, a J-shaped positioning frame, a material pushing air cylinder, an L-shaped material pushing frame, a stamping frame, a suction cup, a linear air cylinder, a double-shaft stamping air cylinder, an L-shaped lifting frame, an L-shaped sliding frame, a reciprocating air cylinder, an electronic pressure meter, a spring, an adjusting plate and an adjusting bolt, and the assembling equipment has the functions of automatic feeding, automatic material taking, automatic inlaying, efficient machining, universality, stress adjustment and the like.
Owner:深圳鑫宏力精密工业有限公司

A threshold processing method for signal detection template of electromagnetic spectrum monitoring receiver

The invention discloses a threshold value processing method for a signal detection template of an electromagnetic spectrum monitoring receiver, which belongs to the field of electromagnetic spectrum monitoring and the field of intelligent instruments. During the monitoring process, the template threshold is adjusted according to the actual situation, and a single spectrum template is derived into a template cluster containing many new templates. The present invention processes spectrum templates by means of morphological expansion, enabling users to adjust template thresholds according to actual conditions during the spectrum monitoring process, eliminating false alarms caused by signal offsets; the present invention derives a single spectrum template into a template containing many new templates The template cluster is easy to operate, and there are only two variables that the user needs to control; it improves the accuracy and flexibility of the test work, improves the practicability of the template threshold, and can effectively avoid false alarms caused by a small amount of distortion of the measured signal; The method has a low computational load and can be used in existing instruments without affecting the processing speed.
Owner:CHINA ELECTRONIS TECH INSTR CO LTD

Migration speed control method and device for distributed object storage system and medium

The invention discloses a hierarchical storage migration speed control method and device for a distributed object storage system and a computer readable storage medium. The method comprises the steps:calculating real-time time delay of a current period according to collected front-end user IO processing time delay data; calculating a matched time delay value based on the target set value of the front-end IO concurrent speed, and taking the time delay value as a reference time delay. According to a preset speed adjustment rule, a migration speed value of the cold and hot pool in the current period is calculated based on a numerical value relationship between the real-time time delay and the reference time delay; the maximum speed value of the migration data of each migration module is determined according to the total number of the migration modules in the cold and hot pool and the migration speed value; the migration speed of the cold and hot pool is controlled based on the maximum speed value of each migration module, so that the data migration speed of each level of storage area in the distributed object storage system can be effectively controlled, and the data migration does not influence the processing speed of a user request.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD

A lightning arrester inspection transportation line

The invention discloses a lightning arrester inspection transport line comprising a plurality of placing racks provided with road wheels at lower ends, a transportation track and a circulation track;two ends of the transportation track are respectively provided with a first and a second rotating disks; the placing rack moves on the transportation track and the circulation track; a transition rackis installed on a front end of the placing rack; a guiding board is installed on the transition rack; a guiding gear rack is installed on the guiding board; a slide pedestal moves along the guiding gear rack; the slide pedestal is provided with an inclined transition slot; a lower end of the inclined transition slot is fixed on the slide pedestal through a cylinder; an inspection transport rack is provided with a first connecting board and a second connecting board, wherein the inclination angle between the first connecting board and the inclined transition slot bottom and that between the second connecting board and the inclined transition slot bottom are the same; a conveyor belt is installed at the middle of the inspection transport rack; an electric sucker of the fixed placing rack isinstalled at a lower end of the inspection transport rack. The lightning arrester inspection transport line of the invention has simple structure and reasonable design; it can not only reduce the cost of production and the labor burden of workers, but also avoid the occurrence of missed inspection and the inflow of unqualified products into the market.
Owner:句容市大唐电气有限公司

An entrance and exit control system and method meeting evacuation requirements

The invention discloses an entrance and exit control system and method that meet evacuation requirements. The system includes a locking device for turning on and off the electric lock, a locking device for turning on and off the electric lock, an entrance and exit controller, a reading device and / or a request to leave device; the locking device for power-on lock and power-off is installed on the door leaf and the door frame, forming a locking point between the door leaf and the door frame; The mechanical lock cooperates to form another locking point of the door leaf and the door frame; the locking device of the power-on lock is connected to the lock power supply through the normally closed output contact of the relay of the entrance and exit controller; the locking device of the power-on and power-off electric lock The normally open output contact of the relay of the entrance / exit controller is connected to the power supply of the lock; the reading device and / or the device for requesting to leave is connected to the entrance / exit controller. The invention can improve the anti-technical opening ability of the entrance and exit, and can effectively improve the safety protection ability under the premise of meeting the requirements of safe evacuation.
Owner:THE FIRST RES INST OF MIN OF PUBLIC SECURITY

Method and system for transmitting and receiving data signal of site/access point in wireless local area network

The invention discloses a method and a system for transmitting and receiving a data signal of a site / an access point in a wireless local area network, which can maintain the high throughput of a communication link in the wireless local area network in the situation that the dynamic range of the power of a radio signal is wide. The main scheme comprises the following steps: A, presetting a plurality of gains, which can ensure a receiver to work stably, for a digital AGC loop; B, selecting a corresponding preset gain and performing fine-tuning on the corresponding preset gain when necessary according to the intensity of the data signal received by the site / the access point currently; and C, setting the transmission power of a transmitter and performing the fine-tuning on the transmission power when necessary according to the intensity of the data signal received by the site / the access point currently. According to the method, a special MAC frame is added to verify the data transmitting and receiving performance, and a special method is adopted to estimate the intensity of the data signal transmitted by a channel and to calculate the data receiving ratio of the site / the access point which can serve as quantitative data for judging the fading of the channel of a wireless link, and a reference frame of the communication efficiency of a device.
Owner:BEIJING LHWT MICROELECTRONICS

Method and device for rapid detection of static vehicle targets

The invention discloses a fast detecting method and device for a static vehicle target. The fast detecting method includes the following steps that images are collected, wherein vehicle images are obtained; the images are preprocessed, wherein normalization is conducted on the sizes of the vehicle images, and the vehicle images are converted into a grey-scale map; entropy information is extracted, wherein pixel level traversal is conducted on the images through search boxes, and pulse iteration average entropy information of the partial images in the search boxes is extracted; rough positioning is conducted on the vehicle target, wherein the images with the pulse iteration average entropy value larger than that the target entropy value are taken as vehicle target rough positioning images; the vehicle target is determined, wherein the vehicle image with the largest pulse iteration average entropy value in the same picture area is reserved as a target vehicle search result; the vehicle target is presented in an original large image, and positioning of the vehicle target is completed. According to the fast detecting method and device for the static vehicle target, robustness, rapidness and transportability of a pulse coupling neural network feature extraction method are used, the feature of the pulse iteration average entropy is selected as the judgment basis, and the speed of detecting the static vehicle target is greatly increased.
Owner:WUHAN INSTITUTE OF TECHNOLOGY
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