39results about How to "Fix slow issues" patented technology

The invention belongs to the technical field of computer applying and the subfield of the machine learning theories and application and focuses on the traffic sign recognizing problem in the intelligent traffic technology. A traffic sign recognizing method based on multi-resolution convolution neural networks is characterized by solving the problem that the speed is low when the convolution neural network is used for recognizing traffic signs, two-dimensional images with different resolutions are used as input, the two convolution neural networks with the same structure are operated in parallel to carry out feature mapping and extracting, and accurate classifying and recognizing are carried out based on a weight threshold value trained by the networks. The two CNNs with different resolution branches are used for replacing a basic CNN structure, the overall and outline features can be mapped through the high-resolution image input, the local and detailed features can be mapped through the low-resolution images, the recognizing resolution is guaranteed, and the model training speed is increased.

The invention discloses a method, a device and a system for adjusting a camera back focus. The method comprises steps: during a process during which a stepping motor drives an image sensor to move along a preset direction according to a first preset step number, multiple frames of images acquired by the image sensor are acquired; evaluation value calculation is carried out on each frame of image, and a definition evaluation value of each frame of image is generated; according to the definition evaluation value of each frame of image, a change rate of the definition evaluation value is calculated and obtained; when the change rate of the definition evaluation value is larger than or equal to a first threshold, the stepping motor drives the image sensor to move according to a second preset step number; and during a process during which the image sensor moves along the direction the same as the preset direction according to the second preset step number, if the definition evaluation value of the image acquired by the image sensor reaches a peak value, the image sensor reaches a position with the most clear focus. Thus, the problem of a slow speed during focusing adjustment by the camera in the prior art is solved.

The invention discloses a control method and device of an electronic expansion valve and an air conditioner. The method includes the steps of starting a compressor of the air conditioner; controlling the opening degree of the electromagnetic valve of the air conditioner to the first opening degree value, and starting timekeeping; detecting the first running parameter and the first running condition of the compressor, wherein the first running parameter is the running parameter of the compressor when the time obtained through timekeeping is between the first preset time and the second preset time, and the first running condition is the running condition of the compressor when the time obtained through timekeeping is between the first preset time and the second preset time; calculating the second opening degree value according to the first running parameter and the first running condition; controlling the opening degree of the electronic control valve to the second opening degree value. By means of the control method and device of the electronic expansion valve and the air conditioner, the problem that in the prior art, due to the fact that the control accuracy of the electronic expansion valve is low, the speed at which the compressor in an air conditioner system arrives at the stable running state after being started is low is solved.

The invention is applied to the audio and video processing technology field, and provides an audio track switching method, a system thereof and an audio and video file playing device. The method comprises the following steps: sending an audio frequency data frame of a present playing audio track to a decoder to carry out decoding playing, and calculating synchronization stamp of a standby audio track simultaneously; receiving an audio track switching instruction inputted by a user; according to the audio track switching instruction, searching an audio frequency data frame and synchronization stamp of an audio frequency needing to be switched; sending the searched audio frequency data frame and synchronization stamp of the audio frequency needing to be switched to the decoder to carry out decoding playing. In an embodiment of the invention, the audio frequency data frame of the present playing audio track is sent to the decoder to carry out decoding playing, and the synchronization stamp of the standby audio track is calculated simultaneously; the audio track switching instruction inputted by a user is received; according to the audio track switching instruction, the audio frequency data frame and synchronization stamp of the audio frequency needing to be switched is searched; the audio frequency data frame and synchronization stamp are sent to the decoder to carry out decoding playing, and rapid switching of the audio track is realized.

The invention discloses a method for realizing website access. The method comprises the following steps: acquiring website data according to a website acquisition strategy; performing analysis processing on the acquired website data and performing data conversion on the website data after the analysis processing; and sending the converted website data to a digital television receiving terminal according to a website access request of the digital television receiving terminal, so the digital television receiving terminal performs corresponding website display according to the converted website data. Correspondingly, the invention also discloses a front-end server and a system for realizing the website access. According to the method and the system for realizing the website access and the front-end server, website contents of the internet can be instantly simplified, so the problems that the digital television receiving terminal has low access speed caused by low speed of a CPU and a total website cannot be accessed due to the incomplete function are solved.

The invention discloses a character string matching method and device. The character string matching method comprises the following steps of: getting a character mapping table, wherein all characters which are different from the characters in a preset character string in the character mapping table correspond to a first mapping character, and the first mapping character is different from the mapping characters in the mapping table, which correspond to the characters in the preset character string; receiving input data; getting the mapping characters in the character mapping table relative to the characters in the input data; and matching the character string constituted by the obtained mapping characters with the mapped character string in the character mapping table, which correspond to the characters in the preset character string. According to the character string matching method disclosed by the invention, all the non-appeared characters in the preset character string are mapped to the same character, so that the occupancy of a memory during matching is reduced and matching speed and matching efficiency are improved by only identifying whether the certain character is matched with the characters in the preset character string or not without respectively identifying all the non-matched characters during the matching process.

The present invention discloses a cross-device aggregation group rapid convergence method, and a cross-device aggregation group rapid convergence device which are applied to a vertical stack system. The vertical stack system comprises an internal link and a plurality of nodes connected with the internal link, and is configured with a cross-device aggregation group. When a member port of the cross-device aggregation group goes wrong (Down), the node at the member port constructs an interruption message notification message, and the interruption message notification message is sent to the other nodes in the vertical stack system via the internal link to update the software/hardware tables of the member ports of the aggregation group. According to the present invention, the problem in the prior art that the speeds of the nodes of the vertical stack system of perceiving the link events at the ports of the cross-device aggregation group are slower is solved, and the convergence of the cross-device aggregation group is realized.

The invention provides a file reading device for measurement equipment and the measurement equipment with a file reading function. The device comprises a reading unit, a display unit and a judging unit, wherein the reading unit is used for reading file information under the current directory from a memory to an internal memory of the measurement equipment when entering the current directory; the display unit is used for displaying subdirectories under the current directory on a display on the measurement equipment according to the file information in the internal memory; the subdirectories are files and/or file holders; the judging unit is used for judging whether the internal memory is enough when the reading unit reads the file information to the internal memory; when the judging unit judges that the internal memory is enough, the reading unit continues the reading until all the file information under the current directory is read into the internal memory; and the file information under the former directory is cached in the internal memory. According to the file reading device, corresponding file information is directly read from the internal memory to display when the former directory is visited for the next time, so that the reading time is saved and the users can check conveniently and rapidly.

The invention discloses a transformer live detection method based on a dynamic time algorithm and relates to the technical field of transformer fault diagnosis. The transformer live detection method disclosed by the invention comprises the following steps: by utilizing an acoustic vibration array, acquiring acoustic vibration signals of a transformer running under multiple normal conditions, and preprocessing the acquired acoustic vibration signals of the transformer by utilizing a spectral subtraction algorithm, thus obtaining pure acoustic vibration signals; extracting characteristic quantities, namely template characteristics, from the pure acoustic vibration signals by virtue of a Mel frequency cepstrum coefficient established on the basis of Fourier and cepstrum analysis; detecting anacoustic vibration signal of a to-be-detected transformer by adopting a signal-to-noise ratio management spectral subtraction algorithm; extracting the characteristic quantities by utilizing the samemethod; and performing similarity comparison with the template characteristics by utilizing a time sequence of characteristic vectors of the acoustic signal, and performing statistics on the characteristic quantities with the highest similarity, thus a recognition result is obtained, and the problem that speed of recognizing an acoustic signal of a transformer broken down is low is effectively solved.

The invention discloses an automatic biological tissue rapid slicing machine. The machine comprises a base. An advancing slide rail and a push rod motor for driving the advancing slide rail to move are arranged on the base. An equipment seat body is arranged on the advancing slide rail, a clamping mechanism capable of clamping an embedded biological tissue is arranged on the equipment seat body, and an up-down driving mechanism capable of driving the clamping mechanism to move up and down is arranged in the equipment seat body. A longitudinal straight notch is formed in the bottom of a movableblade bearing, and a transverse sliding block is arranged in the longitudinal straight notch to move front and back and drive the longitudinal straight notch to move up and down at the same time. Theclamp stroke can be reduced, the number of walking cutting times each time is increased, and the structure is reasonable.

The invention provides a DC circuit breaker, which comprises a main circulation branch, a transfer branch and an MOV branch. The transfer branch is provided with a transfer capacitor and a transfer switch in series; the two ends of the transfer capacitor are provided with pre-charging branches in parallel. A charging capacitor and a current-limiting resistor are arranged on each pre-charging branch in series; the current-limiting resistor is used for enabling the current on the main circulation branch not to be transferred to the pre-charging branch in the breaking process of the DC circuit breaker, and the charging capacitor charges the transfer capacitor through the current-limiting resistor after the breaking process is finished, thereby enabling the transfer capacitor to be charged with a certain reverse voltage. According to the provided technical scheme, the pre-charging branches are arranged on the transfer capacitor in parallel; after the DC circuit breaker is disconnected, thepre-charging branches charge the transfer capacitor and thus the transfer capacitor is charged with a certain reverse voltage, thereby reducing the reverse charging time of the transfer capacitor before the DC circuit breaker is reclosed, and solving a problem that the reclosing speed of the DC circuit breaker is slower.

The invention discloses a data access method and a device. The method comprises the following steps: a BIP (bearer independent protocol) gateway sends a data access instruction to a UICC (universal integrated circuit card) through an SPI (serial peripheral interface), and the BIP gateway receives data, which is corresponding to the data access instruction, from the UICC through the SPI. According to the technical scheme provided by the invention, an access speed of a user is improved, and the effect of bulk data transmission of a WEB server in the UICC can be achieved.

The invention discloses a data processing method and device for a deposit and withdrawal equipment movement, the movement and a storage medium, and relates to the field of data processing of an uppercomputer and a lower computer of a deposit and withdrawal machine. If the state secret chip exists, the state secret chip is adopted to negotiate a secret key with an upper computer through an SM2 algorithm; If the secret key negotiation succeeds, initializing the movement, and sending a result of initializing the movement to the upper computer. According to the technical scheme provided by the invention, on one hand, the problems that the data is easily tampered and the accounting risk is relatively high in the transmission process of the machine core of the deposit and withdrawal equipment and the upper computer are solved, and the effect of improving the safety in the transmission process of the machine core of the deposit and withdrawal equipment and the upper computer is achieved; andon the other hand, the SM2 algorithm is used for carrying out secret key negotiation on the state secret chip, so that the problem that the secret key negotiation speed is relatively low is solved, and the effect of improving the speed in the secret key negotiation process on the premise of ensuring the safety is achieved.

The invention relates to a crank machining system and method. A drilling device is used for drilling the front end and the rear end of a crank, a rough machining device is used for rough machining of the crank, a finish machining device is used for finish machining of the crank, and a crank grinding device is used for grinding the crank. According to the crankshaft polishing device, two parts of a crankshaft are polished through the two sets of clamping plates correspondingly, meanwhile, each part is provided with two contact surfaces making contact with abrasive paper, the polishing speed is high, and the problem that the crankshaft polishing speed of existing equipment is low is solved; the drilling device can drill holes in the two ends respectively through one-time clamping, the rough machining device can finish drilling, chambering and rough machining of the end face through one-time clamping, the finish machining device can finish radius boring, fine boring and finish machining of the end face through one-time clamping, one-time clamping of one device corresponds to multiple working procedures, the number of times of transferring and clamping is reduced, the production efficiency and the machining precision are improved, and the production cost is reduced. The problem that an existing device is single in machining procedure is solved.

The invention belongs to the technical field of robot active visual perception, language interaction, radar obstacle avoidance and deep learning, and particularly relates to a robot man-machine interaction method. The robot man-machine interaction method comprises the steps of shooting an RGB image and a depth map of an environment, detecting obstacle information to obtain a laser radar array, performing normalization processing on the obtained data, and constructing a problem coding network in man-machine interaction to code a problem; constructing an image feature extraction network, extracting RGB image and depth image information into a feature matrix, and splicing the laser radar data, the problem codes and the feature matrix to obtain a feature fusion matrix; adopting a convolutional network to obtain a data fusion matrix as a data fusion matrix of the surrounding environment; and training a recurrent neural network as a navigator, taking the data fusion matrix as input, outputting a navigation result, and controlling the motion direction of a robot. According to the method, the functions of self-navigation, self-exploration, man-machine interaction and the like of the robot are realized, and the intelligence of the robot is improved.

The invention discloses an intelligent queuing system for automobile annual inspection. The intelligent queuing system comprises a system management platform, an information storage device, an information entry device, a main display screen, a prompting device and an infrared detector, wherein the information storage device is arranged at the upper right side of the system management platform; theinformation entry device is arranged below the information storage device; the prompting device is arranged at the upper right side of the information storage device. The intelligent queuing system disclosed by the invention has the following beneficial effects that the infrared detector is arranged; detected vehicles are recorded through matching a microwave detector with an optical material taking device, and information is transmitted into the information entry device through a microcontroller; and the information is processed through the system management platform via the information entry device and is played through the main display screen to prompt the next vehicle to perform detection, so that the efficient office efficiency is realized and the problem that the speed is relativelyslow in a detection queuing process is solved.

The invention relates to the technical field of optical systems, in particular to a method for screening aberration sensitivity of an optical system, which comprises the following steps of: designing a test pattern based on pattern layer characteristics of a photoetching exposure system, setting photoetching exposure process conditions and establishing an evaluation function containing photoetching exposure quality characteristics; evaluating the photoetching exposure quality change to obtain an evaluation result; changing wave aberration distribution of the photoetching projection system based on the evaluation result, simulating photoetching exposure quality, and completing sensitivity analysis of wave aberration parameters in combination with an evaluation function to obtain a sensitivity analysis result; setting a sensitivity threshold value corresponding to the evaluation function, and screening Zernike items above the threshold value in the sensitivity analysis result to obtain a screening result; the screening result is controlled to obtain aberration distribution meeting the photoetching imaging performance index, and the problem that the speed of obtaining the wave aberration distribution is low through a traditional wave aberration control method is solved.

The invention discloses a query data processing method and device, a storage medium and a processor. The method comprises the steps of splitting a query condition into at least two sub-query conditions, wherein each sub-query condition comprises at least one query item, and each sub-query condition triggers query and generates an intermediate result set; performing parallel query on the at least two sub-query conditions; and obtaining the queried data information. By means of the data display method and device, the problem that in the prior art, the speed is low when the data is inquired in the distributed database and displayed in a paging mode is solved.

The invention discloses a carbonated beverage processing and blending device, and relates to the technical field of carbonated beverage processing device.The carbonated beverage processing and blending device comprises a main body device, a blending tank and a discharging assembly, the blending tank is arranged in the main body device, the discharging assembly is arranged on the upper surface of the blending tank, and an external support is arranged on the outer wall of the blending tank; the inner wall of the blending tank is movably connected with a linkage stirring rod, and the bottom end of the linkage stirring rod is fixedly connected with a limiting block. Through the linkage stirring rod, a folding rod, a mounting rod, an external tooth sheet, an arc-shaped movable rod, a centrifugal rod and a centrifugal bead, the problems of relatively low mixing efficiency and non-uniform mixing caused by the fact that materials are mixed by adopting a rotary stirring mode of a fixed stirring blade when the existing carbonated beverage processing and blending device is used for blending and stirring are solved; and then a discharging assembly is used for automatically discharging, a lifting hydraulic rod is started, and a supporting outer ring is pushed to move upwards or descend to adjust the height of the blending tank.