55results about How to "Improve coding accuracy" patented technology

The invention discloses an absolute grating ruler multi-track encoding method. In order to solve problems, such as the accumulative error of incremental encoding and the hardware complexity of absolute encoding, etc., in the micro-nano machining measurement process, the invention adopts an absolute encoding method based on p-element M-sequence pseudo-random codes suitable for single track and multiple tracks. The encoding method is suitable for a straight line absolute position encoder, and a disk absolute angle encoder, locating can be performed at any time, and the boot back-to-zero operation does not needed. Moreover, an incremental encoding strip is provided, so measurement accuracy can be improved by suing the phase segmentation method. The encoding method is an absolute position encoding method has advantages of easy generation, replication and processing, large encoding capacity, low decoding cost and macro-micro composite performance. The encoding method comprises ordinary single-track binary M-sequence absolute grating ruler straight-line encoding, a M-sequence disk encoder, code expanding method multi-code-channel pseudo-random code straight-line encoding and code expanding method p-element M-sequence pseudo-random codes, and the maximum encoding method is obtained by combing the above the encoding methods.

Provided is a coding method used for a metrologic instrument, a meter counter coding character wheel, wherein the 360 degree circumference of the side face or the end face of the character wheel is made into six coding sections in turn: an euphotic zone (a reflective zone) alpha, an aphotic zone (an absorption zone) gamma, an euphotic zone (a reflective zone) beta, an aphotic zone (an absorption zone) beta 1, an euphotic zone (a reflective zone) gamma 1, an aphotic zone (an absorption zone) alpha 1, and the arc angles meet the following relations: alpha+beta+gamma=180 DEG, alpha=72 DEG -gamma / 2, alpha1+beta1+gamma1=180 DEG, alpha1=72DEG-gamma1 / 2, the values of arc angle gamma, gamma1 are the any coding trough belt between 0 to 36 DEG. When the counter character wheel rotate for 360 DEG, the photoelectric sensor constituted of five pairs of optical photoelectric sensors and the photosensitive receiving tubes arranged on the two sides or the end face outside generate five different binary digit coding electrical signals in turns, which corresponds to the ten numbers 0-9 on the counter character wheel, and each corresponds to three groups of five binary encodings, thereby advancing the coding precision and reducing the cost.

The invention relates to an automotive brake pad production line which comprises a tabletting device, a thermal treatment device, a grinding device, a drilling device, a code spraying device and a conveying device connected among the former. Through the tabletting device, a concave die can be closely clamped, so that position of the concave die can be adjusted accurately; through the thermal treatment device, an automotive brake pad storage shelf after being subjected to thermal treatment can be automatically conveyed to a goods storage area, and heat transfer efficiency of a drum brake pad is improved; through the grinding device, an automotive brake pad is closely clamped, and position of an automotive brake pad clamp can be adjusted accurately, so that grinding accuracy is improved remarkably; through the drilling device, the automotive brake pad is closely clamped, the position of the automotive brake pad can be adjusted accurately, and a clamping clamp can be accurately positioned, so that drilling accuracy is improved remarkably; through the code spraying device, the brake pad is clamped closely, code spraying accuracy is improved, and one-step code spraying forming of multiple batches of brake pads is realized.

A remote-transmission direct-reading coder of a counter of a gauge includes a transparent character wheel box, a plurality of coding character wheels and a plurality of carry coupling wheels corresponding to the coding character wheels; the concentric circumference of an equal radius R of the spoke of each coding character wheel is provided with three sections of light transmission hole slots; ten numbers from 0 to 9 are uniformly arranged on the annular cylindrical surface of the coding character wheel in sequence. The invention is characterized in that the corresponding central angles of the three sections of light transmission hole slots on the coding character wheel are respectively as follows: Alpha 1 is 63 degrees plus / minus 3 degrees; Alpha 2 is 90 degrees plus / minus 3 degrees and Alpha 3 is 27 degrees plus / minus 3 degrees; the distances of the three sections of light transmission hole slots are respectively as follows: Beta 1 is 27 degrees plus / minus 3 degrees; Beta 2 is 63 degrees plus / minus 3 degrees in turn. The two sides of the coding character wheel and the arcs with concentric equal radius R of the three sections of light transmission hole slots are provided with five photoelectric sampling points. The remote-transmission direct-reading coder of the counter of a gauge has the beneficial effects of improving the coding precision of the coding character wheel, stably and accurately reading, stably and accurately reading when carry from a lower bit of ''9'' to a high bit of ''0'' is carried out on the character wheel.

The invention relates to the technical field of displaying, and discloses a code printing system, method and device. The code printing system, method and device are used for improving code printing precision and stability of the code printing process and lowering the monitor management difficulty of products. The code printing system comprises a conveying base station for conveying a base plate in the first direction, alignment equipment, code printing equipment and control equipment. The alignment equipment comprises an alignment guide rail arranged in the first direction, a drive rod and an alignment camera lens, the drive rod is assembled on the alignment guide rail in a sliding mode and is arranged in the second direction, and the alignment camera lens is assembled on the drive rod in a sliding mode and used for collecting position information of alignment marks of the base plate. The code printing equipment comprises a supporting rod parallel to the drive rod and a code printing camera lens assembled on the supporting rod in a sliding mode. The control equipment is respectively in signal connection with the conveying base station, the alignment camera lens and the code printing camera lens and is used for obtaining the displacement information of the conveying base station in the first direction and the displacement information of the code printing camera lens in the second direction according to the position information of the alignment marks of the base plate, and the code printing camera lens and a code printing position frame of the base plate are controlled to be opposite in position.

The invention discloses a coded disc for encoders. The coded disc is ring-shaped, the coded disc is uniformly provided with 2N encoding areas along the circumferential direction thereof, N refers to the digit of binary code, and N is greater than or equal to 2; and the encoding area refers to a binary code 0 or 1; the consecutive N encoding areas refer to N-bit binary code values, and for any N-bit binary code value, consecutive N encoding areas corresponding to the N-bit binary code value can be found on the coded disc. Because the coded disc disclosed by the invention is ring-shaped, and the coded disc is circumferentially uniformly provided with 2N encoding areas, a coded path is changed from a diameter direction into a circumferential direction, and due to the structure, the circumferential length of the coded disc and the space of the coded disc are fully used, and the code bit is effectively increased, thereby improving the encoding accuracy.

The invention discloses a multifunctional bill printing machine which comprises a rack, wherein a paper feeding part, a paper transmission part, a printing part and a paper receiving part which are driven by a power plant are sequentially arranged on the rack along the moving direction of paper sheets; the paper feeding part comprises a plurality of paper feeding units which are vertically arranged; and a coding mechanism is arranged between the printing part and the paper receiving part. The invention has reasonable and compact structure, reduced floor space, capability of completing steps of collating, printing and coding for once, convenient operation, time and labor saving and greatly reduced production cost; and since the operation sequence is simplified, the error rate is lowered, and the finally manufactured print products have high collating precision and high coding precision.

The embodiment of the invention discloses coding method, device and equipment, and a storage medium, and belongs to the field of natural language processing. The coding method comprises the steps: obtaining a target paragraph and a context statement of the target paragraph, and inputting the target paragraph and the context statement into a memory coding model; and obtaining an original vector setand a memory vector set in an input layer, obtaining a first target statement matrix of the original vector set in a memory layer according to the original vector set and the memory vector set, obtaining a paragraph vector of a target paragraph according to the first target statement matrix in an output layer, and carrying out processing based on the paragraph vector. And each statement is codedby taking the target paragraph as a unit, so that the coding speed is increased. Moreover, in the coding process, the target paragraph itself is considered; the context statement of the target paragraph is also considered; the paragraph vector for accurately describing the target paragraph can be obtained according to the association relationship between the statement in the target paragraph and the context statement; and the coding accuracy is improved.

The invention, which belongs to the technical field of signal processing, provides an adaptive frequency coding method and apparatus. The method comprises: edge detection is carried out on a frequency signal by a clock signal so as to obtain the period of the frequency signal; statistics of the number M of the clock signals within the N periods of the frequency signal is carried out, wherein the M and the N are integers larger than zero; if the number M of the clock signals is not equal to S*N, the frequency signal is processed, statistics of the number of the clock signals within one period of the processed frequency signal is carried out and the number is used as a coding value; or the clock signals are processed, and statistics of the number of the processed clock signals within one period of the frequency signal is carried out, and the number is used as a coding value, wherein the S is an integer larger than 1. With the method and apparatus, the coding value can be kept to be in a reasonable range, so that the coding precision is improved and resources and time consumption is reduced.

The invention provides a CAN bus oriented non-destructive dynamic optimal scheduling method. An identifier of a CAN bus arbitration field is encoded by means of three segments, namely, a task segment, a competition segment and an auxiliary segment, wherein the competition segment is encoded by adopting a segmentation method based on an absolute deadline, and can be dynamically updated. Priorities are compared via the three segments; for messages whose priorities are the same in the task segment, the priorities in the competition segment are compared again; and for the messages whose priorities are the same in the competition segment, the priorities in the auxiliary segment are further compared. According to the CAN bus oriented non-destructive dynamic optimal scheduling method provided by the invention, the flexibility of a system is increased, the bus time is reasonably distributed and occupied, the real-time performance of the system is improved, and the system is enabled to be more reliable and has the characteristic of simple debugging.

The invention relates to an audio fingerprint encoding method and device, computer equipment and a storage medium. The method comprises the following steps: before feature points are extracted from aninitial spectrogram of an audio signal, firstly, an initial spectrogram is processed through a weight matrix, a processed spectrogram is obtained, feature point pair extraction and coding are carriedout on the processed spectrogram; the weight matrix is obtained by training the audio sample and the actual user behavior characteristics of the user for the audio sample; when the training samples are enough, the user behavior characteristics can reflect the condition that different audios are concerned by the user; correspondingly, after the initial spectrogram is processed through the weight matrix obtained through training, the obtained processed spectrogram can highlight the possible attention part of the user in the audio, the obtained audio fingerprint can more accurately reflect the possible attention characteristic of the user, and therefore the encoding accuracy of the audio fingerprint is improved.

The invention discloses a video coding method and device in a cloud technology scene, a storage medium and electronic equipment, and particularly relates to technologies such as cloud computing and big data. The method comprises the following steps: determining a to-be-coded video frame from a to-be-played video stream; under the condition that the average SATD value of the sum of residual absolute values of all pixels in the video frame to be coded is obtained, a target quantization parameter is obtained according to the average SATD value and the target bit number corresponding to the maximum bit rate of the video frame to be coded, the average SATD value is used for indicating the content complexity of the video frame to be coded, and the target bit number is used for indicating the maximum bit rate of the video frame to be coded. The target quantization parameter is used for indicating an output code rate of the to-be-coded video frame; and coding the video frame to be coded according to the output code rate indicated by the target quantization parameter. According to the invention, the technical problem of low video coding accuracy is solved.

The embodiment of the invention provides an encoding method, a decoding method and equipment, relates to the technical field of communication, and aims to solve the problem of low PMI accuracy in a traditional CSI transmission process. The method comprises the following steps: reporting N PMIs to network equipment, wherein each PMI corresponds to one channel, the first PMI comprises channel information of a channel corresponding to the second PMI, the first PMI is one of the N PMIs, the second PMI is at least one PMI before the first PMI, and N is a positive integer greater than 1. The present application is applied to a CSI transmission scenario.

The invention discloses a coding method, a coding device and a coding system. The coding method comprises the following steps: when a substrate is conveyed to an exposure machine, adjusting the substrate so as to align an exposure alignment mark on the substrate with the exposure machine; controlling the exposure machine to form a coding area on the adjusted substrate; when the substrate on whichthe coding area is formed is conveyed to a coding machine, adjusting the substrate so as to align the exposure alignment mark on the substrate with the coding machine; controlling the coding machine to form an identification code on the coding area on the adjusted substrate. The coding machine and the exposure machine use the same alignment mark, so that the coding precision of the coding machineis improved, and the identification code is avoided from deviating from the coding area to affect the normal use of the identification code.

The invention discloses a pickup and inkjet printer for a circular product. The pickup and inkjet printer for the circular product comprises a frame body mechanism, a horizontal movement location mechanism, a rotation location mechanism, a grabbing mechanism and a vertical lifting inkjet location mechanism, wherein the horizontal movement location mechanism, the rotation location mechanism, the grabbing mechanism and the vertical lifting inkjet location mechanism are installed on the frame body mechanism respectively; the rotation location mechanism is arranged on the upper part of the horizontal movement location mechanism; the grabbing mechanism is arranged on the upper part of the rotation location mechanism; and the vertical lifting inkjet location mechanism is arranged on the upper part of the grabbing mechanism. The pickup and inkjet printer for the circular product, which is disclosed by the invention, realizes stable pickup and inkjet, and is fast in product replacement speed, high in product replacement capacity, high in inkjet accuracy, high in product adaptation capacity, and adaptive to the urgent need of large-scale production.

The invention provides a wheel hub electric motor and a wheel hub electric motor system. The wheel hub electric motor comprises a fixed seat, a driving wheel and a coding module, wherein the driving wheel is connected with the fixed seat via a wheel shaft, the coding module is fixed on the fixed seat, the driving wheel is provided with a driving gear wheel, the driving gear wheel and the driving wheel move synchronously, the driving gear wheel is connected with a transmission gear wheel in the coding module in an engaged manner, and the driving gear wheel is greater than the transmission gear wheel in diameter; when the driving wheel rotates, the driving gear wheel rotates synchronously, the transmission gear wheel is driven to rotate by the driving gear wheel, and therefore coding signals can be output via the coding module. Via the wheel hub electric motor and the wheel hub electric motor system, coding precision of the wheel hub electric motor can be improved, and therefore accuracy of wheel hub electric motor motion control can be improved.

The invention relates to an optical three-dimensional measuring method based on a phase coding technology, belonging to the technical field of three-dimensional measurement. The method comprises the following steps of: (1) producing a grating coding stripe image by a computer; (2) projecting the grating coding stripe image by using digital projection equipment; and (3) acquiring the grating coding stripe image and performing coding solution and three-dimensional measurement by adopting a phase-shift algorithm. The method is characterized in that: the number of pixels in each grating period of the grating coding stripe image generated in step (1) is equal to the step number of the adopted phase-shift algorithm; and the gray scale of the pixels in each grating period of the grating coding stripe image is needed to meet sine or cosine curve distribution, and the gray-scale value of the pixels are extreme points of the corresponding sine or cosine function. Compared with the traditional sine phase-shift coding method, the method has strong interference resistance to the nonlinear influence of gamma rays of the digital projection equipment, the coding has higher stability, reliability and correctness, and the method is important in the aspect of accurate measurement of an optical three-dimensional outline on the external surface of an object.

The invention discloses laser code marking and scanning equipment. The laser code marking and scanning equipment comprises a machine frame, a code marking platform mechanism, a laser code marking mechanism, a code scanning platform mechanism, a code scanning mechanism, a material moving mechanism, a product feeding mechanism and a product receiving frame. The code marking platform mechanism, the code scanning platform mechanism, the material moving mechanism, the product feeding mechanism and the product receiving frame are integrated on the same machine frame to form the laser code marking and scanning equipment, and the laser code marking and scanning equipment has the functions of automatic feeding, laser code marking, code scanning and automatic material receiving at the same time. Compared with single laser code marking equipment and single code scanning equipment, the laser code marking and scanning equipment has the advantages that one code scanning process, one set of code scanning equipment and operators are reduced, the equipment and labor cost can be greatly reduced, and the processing efficiency can be improved.

The invention relates to a photoelectric encoder suitable for various motors, in particular high-speed and high-precision motors, and supports 32 million lines and 600,000 rpm. The photoelectric encoder is divided into a passive optical coding component mounted on a rotor, a light source + photoelectric conversion + a data acquisition processing module mounted on a stator. The encoder supports absolute and incremental encoding. The passive optical components of different specifications are manufactured through mass production or precision machining in the form of matryoshka dolls by using integrated circuits or micro-electromechanical and precision mold processes. Higher speeds and resolutions are supported as the manufacturing processes are improved. The encoder uses a microlens array toincrease sensitivity, and uses the microlens array to form a spot of a special pattern, thereby increasing a tolerance threshold and facilitating to install and use. The performance indicators of thelight source, a photosensor, a lens array, the passive optical coding component, etc. used by the encoder are related to coding accuracy, the speed, and device size.

The embodiment of the invention provides a coding method for voltages of cells. The coding method comprises the steps that the average value of the voltages of the cells in a module is obtained; and according to a preset coding table, the difference values between the voltage values of all the cells in the module and the average value are coded to obtain a difference value coded value, wherein thepreset coding table is obtained by coding the voltage difference values in a preset range, the preset range is divided into a plurality of continuously-distributed sub-intervals, and the sub-intervalwith the minimum absolute value of the voltage difference values has the highest coding accuracy. According to the coding method, transmission accuracy is improved on the whole, and the communicationload rate is decreased.

The invention discloses a multifunctional bill printing machine which comprises a rack, wherein a paper feeding part, a paper transmission part, a printing part and a paper receiving part which are driven by a power plant are sequentially arranged on the rack along the moving direction of paper sheets; the paper feeding part comprises a plurality of paper feeding units which are vertically arranged; and a coding mechanism is arranged between the printing part and the paper receiving part. The invention has reasonable and compact structure, reduced floor space, capability of completing steps of collating, printing and coding for once, convenient operation, time and labor saving and greatly reduced production cost; and since the operation sequence is simplified, the error rate is lowered, and the finally manufactured print products have high collating precision and high coding precision.

The invention provides a cross-modal Hash model training method, a cross-modal Hash model coding method, a cross-modal Hash model coding device and electronic equipment. The method relates to the technical field of artificial intelligence, and comprises the following steps: calling a cross-modal Hash model to carry out dimension reduction Hash coding processing on a plurality of obtained sample pairs to obtain a plurality of Hash coding pairs; for each Hash code pair, determining a target data Hash point with a relatively large weight in the Hash data point pair at each position in the Hash code pair, and determining a binary code of the Hash code pair based on each target Hash data point; based on each hash code pair, the similarity matrix corresponding to the plurality of sample pairs, and the difference between each hash code pair and the corresponding binary code, determining the total quantization loss of the cross-modal hash model; and updating parameters of the cross-modal hash model based on the total quantization loss. According to the invention, the coding precision of the cross-modal Hash model can be improved, and the computing resources occupied by the calculation of the similarity between the coding results of different samples can be saved.

The invention provides tracking type dynamic bottle cap marking equipment. The tracking type dynamic bottle cap marking equipment comprises a bracket, a marking device, a rotating device and a feedingdevice, the rotating device comprises a rotating assembly and an outputting assembly, the feeding device is slidably arranged on the bracket and comprises an interval pushing assembly and a trackingassembly, and the interval pushing assembly and one end of the rotating assembly are arranged in a linkage mode; and by arranging the feeding device and the rotating device, the feeding device pushesa bottle cap needing marking upwards to a bottle cap limiting piece of the rotating device and keeps a tracking state with the rotating device in the upward pushing process, the rotating device drivesthe bottom cap located on the bottle cap limiting piece to rotate and be transported, marking processing is conducted on the bottle cap on the marking device to achieve the automatic outward output,and the problems of time and labor wasting due to the manual linear distribution of the bottle cap in the prior art and the poor feeding effect due to the asynchrony of the bottle cap and the rotatingand transporting device in the feeding process are solved simultaneously.

The embodiment of the invention discloses coding method, device and equipment, and a storage medium, and belongs to the field of natural language processing. The coding method comprises the steps: obtaining a target paragraph and a preset database, and inputting the target paragraph and the preset database into a memory coding model; obtaining an original vector set of the target paragraph and a knowledge vector set of the preset database in an input layer; obtaining a first target statement matrix in the first memory layer according to the original vector set and the knowledge vector set; andacquiring a paragraph vector of the target paragraph in the output layer according to the first target statement matrix, and processing based on the paragraph vector. And with the target paragraph asa unit, the memory coding model is applied to code the target paragraph, so that the coding speed is increased. And in the coding process, the target paragraph itself is considered; knowledge data inthe preset database is also considered; and the coding accuracy is improved.

The invention relates to the field of printing equipment, in particular to a folding, dispensing and online ink-jet printing device and an ink-jet printing method. The device comprises a base, a conveying belt arranged in the base and a mounting frame arranged on the base, wherein an ink-jet printing machine used for ink-jet printing of a specification is arranged on the mounting frame, a detection element used for detecting a position of the specification is arranged on the mounting frame, a first correction assembly used for correcting a position of the specification in a conveying direction is arranged on the side wall of the mounting frame, and a second correction assembly used for adjusting a position of the specification in a width direction of the conveying belt is arranged on the base. The device has the effects of correcting the specification, improving the positioning precision of the specification below the ink-jet printing machine and improving the ink-jet printing precision on the specification.

The invention discloses double-station laser coding equipment and an operation method thereof. The equipment comprises a rack, a first coding platform mechanism, a second coding platform mechanism, alaser coding mechanism, a first code scanning platform mechanism, a second code scanning platform mechanism, a code scanning mechanism, a material moving mechanism, a product feeding mechanism and a product receiving frame. Two sets of coding platform mechanisms are adopted, and two sets of lasers and CCD galvanometer coaxial assemblies are matched, so that double-station laser coding is formed, independent control is achieved, mutual influence is avoided, two sets of single-station laser coding equipment are equivalently integrated, and the coding efficiency is greatly improved; the two setsof code scanning platform mechanisms are adopted to form double-station code scanning, one set of scanning mechanism is shared, and double stations alternately operate to scan codes, so that the working time of the scanning mechanisms is fully utilized, and the code scanning efficiency is greatly improved; The double-station laser coding equipment has the coding and scanning functions at the sametime, coding and code scanning are integrated on one piece of equipment, one code scanning procedure and one set of code scanning equipment and manpower are reduced, the production efficiency is improved, and the cost is reduced.

The invention provides a single-hole device for measuring underground water flow velocity and flow direction. The device comprises an external support, a seepage tracking unit, a position detection unit, a reset unit and a controller; a connection cylinder is provided with a water passing window; the seepage tracking unit comprises an upper thimble, a lower thimble, a rotating shaft and a seepage tracking rod, wherein the upper thimble, the rotating shaft and the lower thimble are installed coaxially in the vertical direction sequentially; the rotating shaft is fixed by the upper thimble and the lower thimble in a tight pressing mode; the other end of the upper thimble and the other end of the lower thimble are respectively installed in a control room and an under-chassis; the seepage tracking rod is fixed in the horizontal direction in the rotating shaft and two ends of the seepage tracking rod are protruding from the rotating shaft; one end of the seepage tracking rod is provided with an expansion part which is smaller than the water passing window in size; the position detection unit comprises a color code disc and a color recognition module; the reset unit is constituted of more than three electromagnets which are electronically connected to the controller. The device has functions of flow velocity and flow direction tracking, position detecting and resting; by use of the device, non-contact measurement, repeated measurement and continuous measurement can be realized.