71results about How to "Reduce the number of bytes" patented technology

The invention relates to a three-dimensional model retrieval method based on multi-feature relevance feedback, comprising the following steps: a server processes each three-dimensional model in a three-dimensional model database to obtain color view arrays; three-dimensional model features are acquired and synthesized to generate a feature database; features of a two-dimensional sketch offered by a computer client are calculated and matched with feathers in the feature database, the distance between the two-dimensional sketch and each three-dimensional model is calculated, the three-dimensional models as a retrieval result are sorted and outputted according to the distance values; the client labels each retrieval result with 'relevance' or 'irrelevance', returns labeled three-dimensional model information to the server, the server learns the information, classifies the three-dimensional database by SVM fusion method, sorts and outputs the three-dimensional models as a retrieval result; the above steps are repeated until a satisfactory three-dimensional model retrieval result is outputted to a user.

The invention discloses a method and a server for supplying a picture to a computing terminal. The method comprises the following steps: receiving a picture access request sent by the computing terminal, wherein the picture access request comprises to-be-accessed picture information and network type information of the computing terminal; determining whether to perform format conversion on the picture according to the network type information of the computing terminal; and when determining to perform format conversion on the picture, acquiring original picture data corresponding to the picture information in the picture access request, and converting the original picture data to picture data in a predetermined format according to a predetermined format conversion rule, wherein the byte number of the picture data in the predetermined format is smaller than the byte number of the original picture data; and sending the picture data in the predetermined format to the computing terminal. Thus, by adopting the method and the server for supplying the picture to the computing terminal, the problem that when a mobile terminal accesses the picture, as the data size is relatively large, the problems that the loading speed is slow and the consumed network flow is large are solved, and the mobile terminal can rapidly load the picture, and the flow consumption when the picture is accessed is reduced.

The invention discloses a method for adaptively determining packet delayed sending for Semi-TCP (transmission control protocol). In the method, after receiving a TCP packet, a destination node using the Semi-TCP adaptively determines the time of sending an acknowledgement packet of a data packet, thus the sending quantity of the ACK (acknowledgement) packet is compressed, the sending of repeated ACK is canceled, and the competition for a wireless channel between a positive data flow and a negative data flow is reduced; and an acknowledgment state is a state described by the following parameters: continuity of packets in a receiving cache of the destination node, the maximum number of block boundaries which can be contained by a selective acknowledgement (SACK) packet head, a set time interval of sending ACK and the like. Meanwhile, in the method, the traditional SACK packet head is improved, and the sequence numbers of discontinuous TCP block boundaries are marked by a relative offset so as to improve the acknowledgment rate of the Semi-TCP source node packet and reduce the overhead resulting from the introduction of SACK.

The invention discloses a method for storing real-time data, which comprises the following steps: the data of a storage sensor is collected by a collector in real time; the summary information of a main index is accessed, checked and compared; the latest indicator of the main index content is extracted; the latest storage indicator of the data is accessed; data content and a check code are stored; new index content and the check code are calculated; the main index content and the check code are stored; main index summary is updated and stored; backup index content and the check code are stored; backup index summary is stored; the backup index summary is accessed and then checked and compared; the latest indicator of the backup index is acquired; the latest storage indicator of the data content is accessed; and storage information is reestablished. Double indexes and multiple checks are adopted for protecting the data in a storage unit, thus guaranteeing the complete content of the data stored in the collector. Cycling coverage is adopted for realizing the continuous storage of data content under fixed storage capacity, improving the reliability and completeness of important parameter record during the industrial process and promoting the operation efficiency of process monitoring and work safety.

The invention discloses a capability acquisition method for a multimode terminal. The method comprises the following steps that a base station transmits a first terminal capability request to the multimode terminal according to the type of a current system to acquire the current system capability of the multimode terminal after receiving an attachment request sent by the multimode terminal; and the base station processes initial attachment initiated by the multimode terminal according to the system capability. According to the method, the multimode terminal can only report the capability of the multimode terminal for the current system in an initial attachment process, so that the number of bytes of a multimode terminal capability reporting message is reduced, the multimode terminal capability reporting message transmission failure rate and retransmission times in the initial attachment process are reduced, and the access time delay of the multimode terminal is further shortened.

The invention relates to a message compressing transmission and receiving decompression method based on multilink, a member link and message forwarding system based on multilink. The compressing transmission method including the following steps: a member link of a multilink is bound to obtain a message; a self message compression parameter is inquired to execute message compression operation; finally, the compressed message is transmitted. The receiving decompression method including the following steps: a member link of the multilink is bound to receive the compressed message; moreover, the self message compression parameter is inquired to execute decompression operation. The member link comprises a message acquisition module, a memory module, a compressing module and a transmitting module; the message forwarding system comprises a control module, a first member link and a second member link. The invention, which can adapt to the requirements of compressing transmission and receiving decompression of message transmission under the condition of multilink, reduces message header byte number, thereby saving transmission cost.

The invention relates to a log compression method and device. The method comprises the following steps: obtaining a file which comprises log records; traversing the file according to a log record output priority, and replacing a character string of each log record in the file by a unique number so as to obtain replaced log records; and encoding the replaced log records at a same time frame through a same timestamp so as to obtain compressed logs. According to the log compression method and device, the file which comprises the log records is traversed by utilizing the log record output priority, and the character string of each log record in the file is replaced by the unique number, so that the number of bytes occupied by the character strings is decreased, and the log compression ratio is enhanced; and meanwhile, the log records after the character string replacement are encoded at the same time frame through the same timestamp, so that the proportion of the timestamp information of the log records in the log content is effectively reduced, and the log compression ratio and compression efficiency are furthermore improved.

The present invention discloses a data compression recording method. The method comprises acquiring data in real time, and completely recording the first acquired data, wherein the first data comprise a time value and a floating point value; for i-th data, calculating a first difference value between a floating point value of the i-th data and the floating point value of the last completely recorded data, and calculating a second difference value between a time value of the i-th data and the time value of the last completely recorded data, the initial value of i being 2; and if the first difference value and the second difference value both satisfy preset conditions, recording the first difference value and the second difference value to complete a simple record of the i-th data. The present invention also discloses a data compression recording apparatus, so that the storage space required by the data can be effectively reduced when data integrity is ensured.

The invention discloses an electronic chart position point data simplification method and a system. The electronic chart position point data simplification method includes the following steps and modules: searching maximum and minimum values of position point latitude and longitude in a source chart file; setting reference points includes that setting a lower left corner of a chart as a reference point or a central point of the chart as the reference point; obtaining relative values, including projected coordinate relative values and latitude and longitude relative values, of relative reference points for all position point data in the source chart file, and recording the relative values into a system electronic navigational chart (SENC) of the system chart file. According to the electronic chart position point data simplification method and the system, number of bytes indicating the position point data is reduced, data precision is not reduced, and data amount of position points of the system chart file is reduced. Besides, when the system chart file is formed, projecting calculation of all position points is completed, the projecting calculation is saved when an electronic chart is displayed, and display speed of the electronic chart is favorable for being improved.

The invention relates to an image coding method and apparatus, a computer device and a storage medium. The method comprises the steps of obtaining a macro block obtained by dividing a current image frame; determining a byte allocation weight corresponding to each macro block; identifying a key macro block and a non-key macro block in the macro block according to the byte allocation weight; controlling the number of bytes corresponding to each non-key macro block to be reduced, wherein the number of bytes corresponding to each key macro block is not reduced; and respectively encoding each non-critical macro block and each critical macro block according to the correspondingly controlled byte number. According to the scheme, the bandwidth can be saved.

The invention provides a method for remotely managing equipment parameters. The method comprises the following steps that: a control end remotely modifies configuration parameters of an equipment end, and transmits JSON (JavaScript Object Notation) format configuration data to a server in an http protocol way; the server notifies equipment in a pushing way, and the equipment end acquires the JSON format configuration data from the server in the http protocol way, compares a difference between the acquired configuration data and a configuration parameter state of the equipment end, modifies the configuration data, and applies the modified configuration data to the equipment end; and a configuration execution state report is reported to the server in the http protocol way, and the server informs the control end of a current configuration execution state in a pushing way. Through adoption of the method, bandwidth consumption in a network interaction process is saved, and the interaction efficiency is increased.

The invention provides a coding method of a flow indicator diagram and beacon frames and relates to the field of communication. The coding method of the flow indicator diagram and the beacon frames enable users to know whether data are stored in access points or not, or enable user terminals to know whether to access channels or not, and enables number of bytes occupied by the flow indicator diagram in the beacon frames to be reduced. The coding method of the flow indicator diagram includes the steps: controlling segmentation bitmap display fields in a sub-bitmap to display or not through at least one bit in flag bitmap control fields, wherein a segmentation sub-bitmap in the sub-bitmap is used for enabling the user terminals to know whether the data are stored in the access points or not, or enabling the user terminals to know whether to access the channels or not.

The embodiment of the invention discloses a serial number generation method and a server. The method comprises: after any server (such as a first server) in the distributed cluster system determines that an event is triggered, a first digital sequence corresponding to the event is generated, and a serial number corresponding to the event is generated according to the first digital sequence, time information when the event is triggered and address information of the first server. According to the embodiment of the invention, the serial number is generated by using the address information of thefirst server, it can be ensured that the serial number generated by the first server is different from the serial numbers generated by other servers, that is, the non-repeated serial number can be generated without adopting a mode of communication of a plurality of servers, so that the cost can be reduced, and the processing efficiency can be improved. Moreover, the serial number corresponding tothe event is generated through the first digital sequence corresponding to the event and the time information of the triggered event, so that the serial numbers corresponding to different events in the multiple serial numbers generated by the first server are different.

The invention discloses an optimization method for a terminal to receive a mail; the optimization method for the terminal to receive the mail comprises the following steps: currently whether a presetcondition is met or not is detected when the terminal receives the mail; if yes, a server inquires whether the mail which is not received exists or not; when the mail which is not received exists, themail header information of the mail is obtained from the server; the mail is subjected to priority division based on the mail header information, wherein the divided priorities comprise a plurality of levels; and the mail content of the mail is obtained according to the receiving strategies corresponding to each level. The invention further discloses a mobile terminal and a computer readable storage medium. According to the optimization method for terminal to receive mail, the mobile terminal and the readable storage medium, the power consumption of the terminal in the process of using the e-mail can be reduced, and the cruising ability of the terminal is further improved.

The embodiment of the invention relates to the technical field of block chains, in particular to a transaction method and device based on a UTXO model, and is used for saving network resources occupied by transaction data. The method comprises the steps of determining that a transaction comprises N unspent transaction outputs, wherein N is greater than 0; creating data of the transaction; whereinthe data of the transaction comprises a transaction identifier; wherein the verification array comprises verification information of unspent transaction output, the transaction input and / or the transaction output comprises a verification index of the unspent transaction output, and the verification index marks the position of the verification information of the unspent transaction output in the verification array; and broadcasting the data of the transaction.

The embodiment of the invention discloses a method for transmitting a multistation control frame, an access point, and a system. The method comprises the steps: transmitting the multistation control frame to multiple stations, wherein when the multistation control frame is a request frame, the request frame is used for requesting each station for transmitting a first response frame corresponding to the multistation control frame; receiving first response frames which are transmitted by all stations and are corresponding to the multistation control frame; or enabling a second response frame tobe used for responding to a data frame, a management frame or a control frame transmitted by multiple stations when the multistation control frame is the second response frame. The multistation control frame comprises a conventional lead code field and a new lead code field. The new lead code field comprises a first signaling field and a second signaling field. The multistation control frame, compared with an 802.11ax multistation control frame, greatly reduces the occupied bytes. Therefore, the method can reduce the time in occupying a channel in a transmission process of the multistation control frame.

The invention discloses a user datagram protocol (UDP) multiplex method, adopting the technical proposal that firstly, a corresponding relationship between a user index and a UDP port is built; then the user index to mark the multiplex data of the users is carried in a multiplex head of the UDP multiplex packet for the UDP multiplex; the corresponding relationship between the user index and the UDP port as well as the user index in the multiplex head are used for user-data multiplex. Besides, the invention discloses a negotiation method of UDP multiplex, which adopts the technical proposal that an indication message of UDP multiplexing capacity is sent by a transmission node to a reception node to indicate whether the transmission node supports the UDP multiplex or not; an indication response of the UDP multiplexing capacity from the reception node is received by the transmission node to indicate whether the reception node supports the UDP packet multiplex or not. The invention has advantages of saving transmission bandwidth, improving transmission efficiency, and simplifying UDP reusing negotiation.

The invention provides a file format conversion method applied to magnitude comparison. The method comprises the following steps: analyzing a webpage file, extracting key first data from the webpage file, and grouping the key first data; cleaning the grouped first data, and extracting more concise second data; storing the extracted second data into a file of which the memory amount is smaller thanan original value and which can visually observe the data; and performing batch storage processing on the files for magnitude comparison. The whole process of the method provided by the invention hasthe advantages of rapidness and high efficiency, and the technical problem that files in an original webpage form cannot be directly displayed in a csv format in the prior art is solved. The technical effect of format conversion for rapidly processing a large number of data files is achieved.

The invention discloses an MIMO (Multiple Input Multiple Output) codebook indicator feedback method and a corresponding device, which belong to the communication field. The method comprises the following steps: obtaining a first codebook indicator and a second codebook indicator; and feeding back both if the number of the transmission layers is less than or equal to that of pre-arranged layers, otherwise, feeding back only the first codebook indicator. The device comprises an acquisition module and a feedback module. According to the invention, only the first codebook indicator is fed back, if the number of the transmission layers is larger than that of the pre-arranged layers, so that the byte numbers for feeding back the second codebook indicator are saved, which allows the byte numbers for feeding back the codebook indicators to be greatly reduced under the condition that the number of the transmission layers is larger than that of the pre-arranged layers, and the feedback quality is improved at effectively reduced feedback expense.

The invention discloses a method for declaring an enabled virtual local area network (VLAN) and equipment thereof. The method comprises the following steps that: routing bridge (RB) equipment determines a quantity of continuous enabled VLANs in the enabled VLANs according to configuration of the enabled VLAN of the routing bridge equipment; when the quantity of the continuous enabled VLANs in the enabled VLANs is larger than a threshold, the RB equipment uses a first packaging format to package and declare an information unit of the enabled VLANs so as to declare the continuous enabled VLANs, wherein using the first packaging format to package the information unit means that an initial VLAN ID and a terminated VLAN ID of the continuous enabled VLANs in the information unit are marked; the RB equipment sends a Hello message carrying the information unit. In the invention, numbers of bytes occupied by the information unit which is used to declare the enabled VLANs are reduced. Therefore, the numbers of the bytes of the Hello message are reduced so that a purpose of saving network resources can be reached.

The invention relates to a federal learning data processing system based on gradient compression, which comprises a server, M clients, a processor and a memory in which a computer program is stored, wherein the server stores a first database and a second database. The field of the first database comprises a client id and the round of the last participation of the client in federal aggregation, the field of the second database comprises the round of federal aggregation and a global model corresponding to the round, and the first database and the second database are both dynamically updated along with training of a federal aggregation model. According to the invention, the number of bytes transmitted between the server and the client is reduced, so that the time consumed by communication between the server and the client is reduced, and the efficiency of federal aggregation model training is improved.

The invention discloses a mixed play system for multiple audio files and a control method for the mixed play system. The mixed play system comprises an audio processor, an SDRAM (Synchronous Dynamic Random Access Memory) memory, an NAND (Not And) Flash memory, an analyzer and a programming system, wherein the programming system is used for receiving an external instruction to obtain a time sequence file name; the system program is used for finding a corresponding time sequence file in the NAND Flash memory and finding positions of all audio file data required to be played in the NAND Flash memory according to basic data information of the time sequence file; the position of the audio data in a time slice of the audio file in each command line by the system program; and finally, the data are decoded and played by the audio processor, thereby realizing that certain audio file is played in certain tile slice, starting playing any audio file from any time point and ending at any time point and managing the whole play process through a specified time sequence file.

The invention discloses an electronic chart position point data simplification method, which comprises the following steps of: 1, dividing chart position points into three types, namely point chart layer discrete position points, line chart layer continuous position points and surface chart layer continuous position points, and respectively processing the three types of chart layer position pointdata; 2, for the discrete position point data of the point graph layer, the discrete position points are continued according to a distance or byte rule, a reference position point of each position point is determined, and then each position point is represented by a relative coordinate relative to the reference position point; and 3, for the line and surface layer data, processing the initial position points of all the line segments according to the step (2), taking the midpoint of two adjacent position points as a reference position point for each group of continuous position points, and representing the line and surface layer position points by using the relative coordinates relative to the reference position point. And 4, storing the relative coordinate data, and generating an electronic chart file. The electronic chart precision is maintained, the chart file is greatly simplified, the storage space is reduced, and the processing efficiency is improved.

The invention discloses a vehicle state information storage processing method and device and a readable storage medium, and the vehicle state information storage processing method comprises the steps:obtaining a start time stamp of a network entering an unstable state when the network is detected to enter the unstable state; acquiring target vehicle state information of the vehicle, wherein the target vehicle state information comprises travel information; according to the start timestamp, the start time and the deadline of each stroke in the stroke information, calculating the start time deviation between the start time and the start timestamp of each stroke, and the deadline deviation between the deadline of each stroke and the start timestamp; modifying the travel information in the target vehicle state information to obtain modified target vehicle state information, wherein the modified target vehicle state information comprises the following contents: a start timestamp, start time deviation of each travel and deadline deviation of each travel; and storing the modified target vehicle state information. By adopting the scheme, the storage space occupied by the target vehicle state information can be reduced.

The present invention discloses an all-in-one machine through combination of HMI and PLC functions and a communication method thereof. The all-in-one machine comprises a PLC module, an HMI module, a first SPI interface and a second SPI interface. The first SPI interface is connected with the PLC module and the HMI module, and the second SPI interface is connected with the HMI module and the PLC module. The method comprises the steps of: initiating communication from a first host, and transmitting communication data to a first slave through the first SPI interface; initiating communication froma second host, and transmitting communication data to a second slave through the second SPI interface, wherein the communication data meets an ModBus protocol and does not comprise function codes andslave station numbers. The two SPI interfaces are provided at the aspect of hardware to achieve two-way transmission of the data with no need for differentiating 'reading' or 'writing-in', and the data transmission efficiency can be doubled; and moreover, optimized data frames are employed at the aspect of software to reduce the number of bytes in the transmission of the data frames so as to improve the communication rate and totally achieve the purpose of improving the communication efficiency of the all-in-one machine through combination of the HMI and the PLC.

The invention discloses a data processing method. The data processing method comprises the following steps: acquiring significant digits of data in various channels of various levels of a data model;determining fixed-point levels of the various channels on the basis of the significant digits; and carrying out fixed-point on data in the channels according to the fixed-point levels of the various channels to obtain first fixed-point data. The invention further discloses a data processing device and a computer readable storage medium. The fixed-point level of the various channels is determined according to the significant digits, fixed-point of different levels can be adopted by the different channels, the bytes of data are reduced, storage space is expanded, and thus, model operation rate is improved.

The invention proposes a gray-scale image applicable neural network learning method and a training method, comprising: preprocessing a gray-scale image as a second matrix; generating a binarized random coding matrix and then multiplying the second matrix as a fourth matrix; activating the function adjustment as a sixth matrix; establishing a binarized seventh matrix and an eighth matrix of floating point numbers; timing the seventh matrix by the fourth matrix as a ninth matrix; obtaining a tenth matrix representing the characters; subtracting the tenth matrix from the ninth matrix as an eleventh matrix; using the transpose matrix of the sixth matrix as a twelfth matrix; timing the sixth matrix by the twelfth matrix for a process parameter; dividing the twelfth matrix by the process parameter as a thirteenth matrix; timing the eleventh matrix by the thirteenth matrix as the fourteenth matrix; adding the fourteenth matrix to the eighth matrix to obtain a fifteenth matrix served as a new eighth matrix; and binarizing the fifteenth matrix as a new seventh matrix. According to the invention, the quantity of bytes in the matrix computation is reduced, the computation speed is increased and the hardware demand is lowered.

An application method of a dynamic information database in a distribution automation system comprises the following steps: a history database is configured, a history database service program is started, external database management and data inquiry services are provided by the history database, a Client is connected with the historical database service program, the history database is managed by the client, history data is written by the client, the history data is compressed, optimized and stored through the historical database service program, the history data is read by the Client according to time conditions, and the history data is inquired and returned through an optimized query algorithm by the historical database service program. According to the time characteristics of the stored data, lossless compression or pretreatment compression is carried out to the data, and optimized storage and access strategies are adopted to obviously improve the efficiency of the distribution automation system.

The invention discloses a RF 433 M frequency band remote wireless ad hoc network and a data transmission method. The RF 433 M frequency band remote wireless ad hoc network comprises a linear network constructed by a successive cascade of several communication nodes. The communication nodes comprise a RF 433 M remote wireless radio frequency transceiver, and the RF 433 M remote wireless radio frequency transceiver is connected with a power management module and a STM 32 core processing unit. The RF 433 M frequency band remote wireless ad hoc network and the data transmission method have the advantages that the infinite extension problem of the linear wireless network is solved, and an operation in a linear wireless transmission is high in efficiency, time-saving, and low in power dissipation.