48 results about "ASCII" patented technology

The invention provides an AC mode matching tree construction method and device and an AC mode matching tree matching method and device.In one example, the AC mode matching tree construction method comprises the steps that according to a mode set, the mode that all modes in the mode set are inserted into a dictionary tree is adopted, and an AC mode matching tree is constructed; according to a breadth-first traversal mechanism, state identifiers are distributed to all nodes of the AC mode matching tree in sequence; and according to a breadth-first traversal mechanism, for a plurality of different sub-nodes of the same node, according to characters corresponding to edges, connected with the different sub-nodes, of the node, and according to an ASCII code sequence, rearranging state identifiers for the plurality of different sub-nodes to obtain a final AC mode matching tree. By applying the embodiment of the invention, the memory access performance of the AC mode matching tree can be optimized.

The invention discloses a mimicry thought-based code dynamic obfuscation compiling method, system and equipment. The method comprises the following steps of: sensing a source code, and performing compiler annotation on a key function in combination with a large language model and expert knowledge; a global character string constant is extracted, an ASCII value of a character is coded into an MBA expression, a decoding function is inserted into a position where the constant is used, mimicry replacement is performed on an original character string in a data segment, and functions of other programs are disguised; adding a clone block irrelevant to function logic, and constructing a mimicry branch by using a dynamic opaque predicate as a jump condition; adding an equivalent heterogeneous shadow branch, and using a random predicate as a jump condition; a flower instruction is inserted, and an MBA expression is used for instruction replacement; and performing control flow flattening on the function. According to the method, the mimicry multi-variant thought is combined, accurate diversified confusion compilation is performed, and key fragments of program codes in the fields of industrial control, power grids, Internet of Things and the like are effectively protected.

The invention relates to a duplication name index creation and reconstruction method and device based on openGauss, and aims to solve the compatibility problem caused by index naming conflicts when heterogeneous databases such as MySQL migrate to openGauss. According to the method, a duplication index function switch is controlled through a GUC parameter ENABLEDUPLICATEINDEXNAME, when the duplication index function switch is started, a user table index name is rewritten (an affiliated table OID and an ASCII 0x1F invisible separator are added), and a unique system storage name is generated and written into a pgclass system table and other system tables; a REINDEX mechanism is provided to realize smooth transition of new and old index formats; and transparent analysis of user operations (such as INDEX HINT) is supported. According to the method, on the premise that the global uniqueness constraint of the openGauss index is not damaged, the MySQL cross-table duplicate-name index is compatible, the migration efficiency and the system compatibility are improved, the labor cost is reduced through automatic rewriting, parameter control and other mechanisms, and the accuracy and stability of large-scale database migration are guaranteed.

The present invention relates to an information compilation technology method based on the Julia fractal set. The method includes the following steps: Step S1, information encoding: converting the input information into binary ASCII code and mapping it to complex numbers to generate a Julia set image with specific fractal features; Step S2, obtaining the fractal dimension D: obtaining the fractal dimension D of the fractal image through the box-counting method as the eigenvalue of the information; Step S3, information hiding and storage: storing the fractal image feature data and the fractal dimension D in a database to achieve dynamic storage of information; Step S4, information decoding and error correction: during the decoding process, obtaining the fractal dimension D of the fractal image, inversely deriving the original information based on this as an index, and using the fractal self-similarity to achieve error correction. The present invention can use the self-similarity and high complexity of the fractal image to achieve the concealment of information, the efficient compression of data, and the anti-interference ability.

The invention discloses an embedded host data encryption method and encryption system in the technical field of data encryption. The method comprises the following steps: setting a data transmission starting password and a 16-bit character index table of a microprocessor; correspondingly converting the data transmission starting password into a binary ASCII value according to an ASCII code table; performing grouping calculation on the binary ASCII values to obtain a decimal character array, sequentially converting each value in the decimal character array according to a 16-bit character index table to generate a symbol ciphertext character group of a data transmission starting password with N values, and taking the value of the symbol ciphertext character group as a first-level symbol ciphertext character; and sequentially carrying out logical operation on the ASCII code values of the adjacent values in the symbol ciphertext character group. According to the method, the 16-bit character index table is set, so that the data transmission starting password can be encrypted into two kinds of ciphertext character strings, namely the first-level symbol ciphertext character and the second-level symbol ciphertext character, and the leakage risk of the data transmission starting password of the embedded host can be effectively reduced.

The invention discloses a structural circuit integrated manufacturing-oriented H-AMF multi-material model digital expression method, a storage medium and equipment, and the method comprises the steps: constructing a file header based on an XML architecture, defining a metadata region and a resource region of a structural circuit integrated model in the file header, and building a material library definition in the resource region; a compact ASCII data block is constructed in the XML architecture to serve as a unified geometric object area, and is used for storing vertexes and triangular patches of the structural circuit integrated model; introducing a vertex deduplication algorithm based on a hash table, and performing deduplication on vertexes of the unified geometric object area to obtain an index database; when the triangular patches are generated, reading a file header based on the XML architecture, obtaining material IDs corresponding to the triangular patches, and binding each triangular patch in the index database with the corresponding material ID; and writing the metadata area, the resource area and the index database of the structural circuit integrated model and the index database bound with the material ID into a disk, generating an H-AMF file, and realizing digital expression of the structural circuit integrated model.

The invention discloses an ultraviolet light communication system based on a transverse effect position sensitive detector, and belongs to the technical field of optoelectronic devices. Comprising a space code modulation module, an imaging lens and a signal demodulation module. The spatial coding modulation module is composed of a 2 * 2 high-frequency flicker ultraviolet LED array, a driving circuit and an imaging lens, four LED units are defined as four spatial coding states respectively, information to be transmitted is converted into an 8-bit binary sequence according to an ASCII coding rule, and the 8-bit binary sequence is split into four groups of 2-bit sub-codes; each group of sub-codes realizes information coding based on a two-dimensional space position by controlling the time sequence lightening of a single LED unit; the signal demodulation module comprises a position sensitive detector and a signal processing circuit thereof. The signal processing circuit is configured to restore a binary sub-code corresponding to an incident light spot through a method of comparing amplitude extreme values of four electrode output signals of the position sensitive detector; and then splicing the demodulated sub-codes into a complete data frame. The method is suitable for short-distance ultraviolet light communication in a complex environment.

The invention discloses a high-speed communication method based on an embedded instrument. The high-speed communication method comprises the following steps that S1, the instrument receives protocol data; s2, analyzing the protocol data, and extracting effective instructions in the protocol data; s3, setting an instruction buffer pool, and storing the effective instruction into the instruction buffer pool; s4, sending a protocol data receiving response to the test system; and S5, the instrument analyzes and responds to the effective instruction in the instruction buffer pool when the resource is idle, and then waits for receiving the instruction next time. According to the method, the cache thread is additionally arranged, so that temporary storage of the ASCII instruction after the instrument equipment completes VXI-11 unpacking is realized, and resource scheduling is facilitated to complete analysis and response of the ASCII instruction when the instrument is idle. Through the method, the instrument responds to the message when the resource is idle, and message blocking or instruction response failure caused by a high-priority task is avoided. The problems of instruction failure and error response during rapid receiving of instrument equipment during high-speed VXI-11 communication are effectively solved.

The application discloses a kind of relay protection device bare core program log recording method and system.The relay protection device chip used in the method and system is multicore AMP architecture chip, wherein CPU core is divided into bare core and system core operation, and there is shared memory between bare core and system core.For the log recording of non-interrupt program, the log content is converted into ASCII code using bare core printf interface, and then placed into shared memory and output by serial printing.For the log recording of interrupt program, logmsg interface is used to only place log content into queue for saving, and the data in queue is converted into ASCII code in a special information processing task, and then placed into shared memory and output by serial printing.System core log storage thread reads LOG information in shared memory, and then writes log in the form of text into power-fail-safe file system Tpsfs.The method and system of the application can fully meet the requirements of relay protection device in different execution delay requirements to complete log recording, and improve the efficiency of log recording.

The invention discloses an indole derivative doped material with host-guest room temperature phosphorescence mutual conversion characteristic, a preparation method and encryption application thereof, and belongs to the technical field of organic luminescent materials, the indole derivative doped material comprises a host material and a guest material, and the host material and the guest material are indole derivatives, different types of substituent groups are introduced into an indole skeleton, so that the photophysical properties of the material are effectively regulated and controlled, and a series of functionalized host materials and guest materials are obtained. Furthermore, the host material and the guest material are physically doped to obtain the organic room-temperature phosphorescent material which has macroscopic long afterglow characteristic and can be mutually converted between host room-temperature phosphorescence and guest room-temperature phosphorescence. The organic room temperature phosphorescent material can be used in the fields of information display, time resolution anti-counterfeiting technology, Morse password encryption, information encryption storage microarrays based on ASCII binary coding and the like.

The application provides a three-mode redundant circuit netlist compiling method and device based on state machine conversion, belongs to the technical field of anti-radiation integrated circuit netlist compiling processing, and comprises the following steps: generating a netlist ASCII text stream and a keyword-regular set by inputting core source data suitable for an anti-radiation scene, triggering a lexical analyzer, forming an ordered lexical unit sequence through lexical analysis, constructing a state transition graph and checking the state transition graph, integrating the graph and a fragment, extracting a syntax tree, converting the syntax tree into a flow graph data structure, finally generating an IR intermediate representation mapped with SoC hardware, and outputting the IR intermediate representation. The three-mode redundant circuit netlist compiling method and device based on state machine conversion are used, so that the problems of low recognition efficiency, large cost and easy deletion of redundant logic in the process of processing a three-mode redundant circuit netlist by a traditional hardware compiler are solved.

The present invention relates to the field of thermal science, and in particular to a method for reconfigurable dynamic control of microscale thermal fields based on magnetic micro-nano robot clusters and a thermal encoding device. The method comprises the following steps: S1. Under the action of an ultrasonic field, the micro-nano robots are suspended and form a circular cluster; S2. An oscillating magnetic field is applied, causing the micro-nano robot cluster to transform from a circular shape into a gear shape; S3. Near-infrared light with a wavelength of 808 nm is used to illuminate the micro-nano robot cluster area, causing the micro-nano robot cluster to exhibit a thermal effect; and S4. The micro-nano robot cluster morphology is controlled by controlling the ultrasonic field and magnetic field characteristic parameters, thereby achieving reconfigurable dynamic control of the microscale thermal field within the cluster area. The thermal encoding device comprises a thermal imager, a near-infrared light source, a magnetic field generator, and an ultrasonic field generator. The present invention can achieve reconfigurable dynamic control of the microscale thermal field and can transmit information using 8-bit ASCII code through encoding and decoding processes.

A system for permanently storing and controlling a file and associated metadata on the blockchain. The system includes: a file deconstruction module configured to receive a file from an engine output and divide the associated metadata into multiple chunks of ASCII where the system generates a code-based reference for each chunk; and an encoding module where the system permanently encodes each chunk and code-based reference and associated metadata on the blockchain, where the blockchain is capable of attribution of the code-based reference and associated metadata in a single transaction, and where the system recalls the file and associated database upon a user request by assembling the chunks from known code-based references stored in a git-hub library.

The invention relates to the technical field of automobile fault diagnosis, in particular to a method and system for inquiring a fault code based on handheld diagnosis equipment and electronic equipment. The method comprises the following steps: acquiring a first original fault code; performing ASCII (American Standard Code for Information Interchange) value conversion on the first original fault code to obtain a first target fault code; performing query matching of the first target fault code in an index table to obtain target data information; the target data information comprises a second target fault code and an original index id, and the first target fault code is correspondingly the same as the second target fault code; extracting the original index id from the target data information, and performing preset system format conversion to obtain a first target index id; and performing query matching of the target index id from a pre-stored database to obtain description information corresponding to the first original fault code. According to the invention, the efficiency of querying the fault code by the handheld diagnosis equipment can be improved, so that the customer experience is improved.

The application relates to a reconfigurable processor chip architecture and application for accelerating gene sequencing, which comprises a configuration manager, a reconfigurable detection array, a post-processing and recording module, a first storage unit, a second storage unit and peripherals, the peripherals comprise a preprocessing module for converting a FASTQ file of a sample gene sequence to be detected into ASCII code; the first storage unit is used for storing the ASCII code of the sample gene sequence to be detected; the second storage unit is used for storing the ASCII code of a reference gene sequence; the configuration manager is connected with the reconfigurable detection array, the post-processing and recording module and the peripherals through a control bus; the peripherals are connected with the first storage unit and the second storage unit through the control bus; the input end of the reconfigurable detection array is connected with the first storage unit and the second storage unit, and the output end is connected with the post-processing and recording module. The application can greatly improve the sequencing speed.

The invention relates to the technical field of computer data processing, and discloses a cache-based data query analysis result optimization method and system, and the method comprises the steps: receiving a client data query request, and extracting an original parameter set; the parameters are subjected to effective cleaning and ASCII code ascending order arrangement, and a unique cache key is generated through normalized splicing and Hash operation; retrieving a cache database according to the result, and returning an analysis result if the result is hit; if the target data is not hit, returning to the source to query the underlying database, and writing the obtained target data into the cache based on an adaptive compression strategy and random expiration time, and in addition, the system establishes a mapping index of a data table and a cache key and monitors a data change event in a binary log of the database, so that active and accurate clearing of the cache is realized. According to the method, the influence of the sequence difference of the request parameters on the cache hit is eliminated through parameter standardization processing, the cache reuse rate is improved by combining adaptive storage and an active failure mechanism, the memory occupation is reduced, and the high real-time performance of data is guaranteed.

This application discloses an angle detection fault-tolerant system and method. The system includes a heterogeneous interface acquisition module, a CRC secondary verification module, a security word parsing module, a fault diagnosis decision module, a smooth switching control module, and a historical data management module. The heterogeneous interface acquisition module acquires dual-channel sensor data in parallel via ASCII and QSPI interfaces; the CRC secondary verification module independently calculates the expected CRC value based on the J1850 standard and compares it with the CRC value returned by the sensor; the security word parsing module performs hierarchical bit-domain parsing of the security word to extract multi-dimensional state information; the fault diagnosis decision module integrates the verification results and state information, and determines the fault type based on the diagnostic matrix; the smooth switching control module uses the most recent valid angle stored in the historical data management module as a reference to perform linear interpolation for smooth transition. This invention solves the problems of single-point fault risk and insufficient data integrity verification, meeting the ASIL-B / C level requirements for automotive functional safety.

This invention provides a fine-grained automatic identification method for IoT devices based on firmware simulation, relating to the field of IoT technology. The method includes: automatically collecting IoT device tags from aggregation websites using web crawling technology and constructing an IoT device tag library; automatically collecting IoT device firmware using XPath expressions combined with an ASCII-based firmware search algorithm; simulating the obtained device firmware, accessing the simulated device IP address and extracting the device fingerprint; automatically generating and matching regular expressions for positive samples based on the device fingerprint; using a binary tree-based model regular expression matching strategy for efficient and accurate model identification; extracting features from web files in the IoT device firmware using BinWalk; training the extracted features using a decision tree model; designing a tree-based rule-based scanning and identification strategy; converting the decision tree model into a rule tree; and identifying the version number of the IoT device, thereby improving the accuracy of identification.

This invention belongs to the field of measurement and analysis technology, and relates to a data processing system for a Yokogawa power analyzer based on the LabVIEW platform. The system includes a communication module, a data processing module, a data acquisition and synchronization module, and a data storage and export module. By constructing a standardized communication interface based on VISA-SCPI, an ASCII data stream structured parsing engine, a unified modeling mechanism with a shared variable library, and a native synchronous acquisition architecture based on TDMS, this invention achieves physical homogeneity, temporal synchronization, and logical isomorphism between the raw measurement data from the Yokogawa power analyzer and the multi-source sensor data from the test bench within the LabVIEW platform. Without the need for additional hardware gateways or post-processing interpolation, it achieves microsecond-level trigger alignment and frame-level parameter binding, ensuring the time synchronization of power parameters with other physical quantities. This significantly improves the automated testing efficiency, data integration capabilities, and multi-dimensional joint analysis level of the test bench.

The invention relates to a compression storage and restoration method and device for flexible direct-current valve control data, and belongs to the field of flexible direct-current power transmission of a power system. According to the method, an intermediate text format is skipped, a binary format is directly adopted to carry out real-time compression storage on high-frequency recording data, and data restoration and visualization through ASCII codes are supported. Real-time lossless recording of data with the sampling rate as high as 100 kHz can be achieved, storage space occupation and data unloading time are remarkably reduced, and an efficient technical means is provided for real-time state analysis and accurate fault positioning of the flexible direct valve control system.

A suspicious Uniform Resource Locator (URL) of a resource on the public Internet is detected by searching a part of the URL for a candidate substring, which is the longest possible substring that is in accordance with a Base64 encoding scheme. The candidate substring is converted to a candidate binary data in accordance with the Base64 encoding scheme. The candidate binary data is then converted to a candidate American Standard Code for Information Interchange (ASCII) string. The candidate ASCII string is evaluated to determine the information type of the candidate ASCII string. A determination as to whether the URL is suspicious is based at least on the information type of the candidate ASCII string.

The invention discloses an AI GC-based learning content planning method and system, and relates to the technical field of artificial intelligence generation, and the method comprises the steps: monitoring data preprocessing, analyzing and evaluating the distraction condition of a student, prompting concentration and carrying out circular detection if the student distraction occurs, obtaining learning test data after concentration, analyzing and evaluating an unqualified condition, and continuing to carry out detection if the student is qualified. If not, recording the appearance, generating a wrong question set, and prompting to complete review of the wrong question set, so as to improve the learning effect of students. According to the method, the image data is calculated through an edge detection algorithm and an eye movement tracking technology to obtain a learning abnormal factor, the image data and the sound data are calculated through an image processing technology, the edge detection algorithm and ASCI coding to obtain a cross-over factor, and the learning abnormal factor and the cross-over factor are comprehensively analyzed to judge a distraction evaluation value.

The application discloses a character-oriented data encoding method and system, and particularly relates to data transmission of narrowband internet of things. The method comprises the following steps: subtracting 20H from each byte in an ASCII code string to be sent; judging whether the byte after the subtraction is less than or equal to 3FH, if yes, removing the high two bits to form six-bit encoding; if no, setting an identifier in a transmission protocol and transmitting in eight-bit encoding; and transmitting after merging four six-bit encodings into three eight-bit encodings. The method solves the waste of one character and one byte transmission in the existing data transmission process, and helps to reduce the data transmission length and the use of data flow.

This invention belongs to the field of data processing technology, specifically disclosing a method, apparatus, electronic device, medium, and program product for batch intelligent processing of CAD drawing catalogs. The method includes: receiving a configuration file containing parameters such as filename separators and version fragment indexes; firstly, parsing the original DWG filenames based on the parameters to locate the target version portion; if parsing fails, calling a pre-trained deep learning model to output the result; then, performing incremental calculations on the target version portion according to the version generation type, including incrementing by ASCII code for ASCII uppercase letter versions and maintaining the digit increment for numeric versions; finally, recombining the filenames, copying the files, and generating a mapping file recording the correspondence between the old and new filenames. This invention achieves batch intelligent processing of CAD drawing catalogs, improving processing efficiency and accuracy.

The present invention discloses a method and a system for collecting access data of a turnstile with double half-bit encoding. The collection method first obtains the states of all sensors on the turnstile. The sensors are opposed infrared sensors, and the states are whether they are blocked, which are represented by 0 or 1. Secondly, when the value of the number N of sensors satisfies 24 < N ≤ 32, the states of all sensors are represented by 4-byte data to form the original data, and the original data is encoded into 5-byte data. The encoded data is visible characters in ASCII code. This method can transmit and save the turnstile access data as displayable characters.

This invention belongs to the field of electrical communication technology and is a multi-terminal intelligent communication system and data transmission method for oil pumping units. It includes: several oil pumping units, each equipped with a communication module connected to a photoelectric conversion module. The photoelectric conversion module sends a raw optical data link to a splitter via a corresponding optical splitter cable. The splitter transmits the received raw optical data link to a host computer via a main optical cable. The communication module uses either RS-485 or ASCII communication. The host computer determines whether the optical attenuation exceeds a preset maximum optical attenuation threshold. If it does, the host computer determines that the optical attenuation of the raw optical data link transmitted via the corresponding optical splitter cable is unqualified. At this time, the host computer sends a modulation signal to the oil pumping unit with unqualified optical attenuation and the next oil pumping unit in sequence, so that the raw optical data links sent by the two oil pumping units are combined into a new optical data link at the splitter. This enables the receiving end to accurately obtain information from the new optical data link even when the optical attenuation of the raw optical data link of the oil pumping unit does not meet the requirements.

The invention discloses a Chinese character word searching method. The method comprises the following steps of 1, extracting all keywords and corresponding manuscript IDs; step 2, converting the pinyin of the keyword; step 3, establishing a pinyin tree; 4, submitting keywords and converting the keywords into pinyin; step 5, calculating array subscript values corresponding to the letters; 6, checking whether the array element is empty or not through the subscript; all manuscript IDs and corresponding keywords are extracted from a database during starting; pinyin of the keywords is obtained through conversion according to the keywords, and it is guaranteed that all pinyin letters are low-case letters; traversing key word pinyin of all manuscripts, firstly taking an initial letter of the key word pinyin, subtracting 97 from an ASCII value of the letter to obtain a number, and corresponding 26 sub-node array subscripts; according to the manuscript query method and device, the problem of speed of manuscript query of the Internet information system is solved, the waiting time of a user in the operation process is shortened, the pressure of a server is reduced, and it is guaranteed that the user can normally use related functions of the system.

The invention discloses an interlocking logic section equipment sequencing method based on a directed graph, and belongs to the technical field of train signal processing. Section node objects are constructed by collecting all section information, and a topology directed graph of connection between section equipment is constructed according to the logic relation between the section equipment; according to the method, all section nodes in a topology directed graph are sequenced in sequence based on an ASCII code sequence and a topology sequencing rule, the connection relation between sections is converted into the directed graph, and the sequencing of section equipment is completed by utilizing the topology sequencing process of the directed graph. According to the method, the problem that the reliability of the section equipment sorting result is low due to the fact that the sorting generation speed and the result accuracy are difficult to guarantee is solved, it is guaranteed that the relative sequence of the sorted sections is consistent with the relative sequence of the inner sections in the routes, the sorting efficiency is improved, and the result accuracy is also improved.

The present invention discloses a communication system compatible with multiple protocols, its control method, and an electronic device. The communication system compatible with multiple protocols includes: an interface module and a configuration module. Among them, the interface module includes: a plurality of serial communication interfaces and a plurality of network communication interfaces; the configuration module is used to configure the plurality of serial communication interfaces to implement the MODBUS-RTU / MODBUS-ASCII communication protocol, the configuration module is also used to configure the plurality of network communication interfaces to implement the MODBUS-TCP master communication protocol or the slave communication protocol, and the configuration module is also used to configure the interface parameters of the plurality of serial communication interfaces and the plurality of network communication interfaces. The communication system of the present invention realizes that the MODBUS communication protocol stack supports both the MODBUS-RTU / ASCII and MODBUS-TCP protocol modes through the interface module and the configuration module, and realizes the master-slave functions of the three protocols, increasing the application scope based on the MODBUS protocol stack and reducing the communication cost.

The invention relates to the technical field of text analysis of embedded equipment. The text analysis method of the embedded device comprises the steps of obtaining a text form file, organizing device configuration parameter data according to abstract grammar and a keyword code table in the text form file, generating a text content file, conducting ASCII coding on the text content file, and obtaining the text form file. The method comprises the following steps: encoding a text content file in a text form file to obtain an encoded text content file, transmitting the encoded text content file to embedded equipment, receiving the encoded text content file in the embedded equipment, analyzing the encoded text content file according to abstract grammar and a keyword code table in the text form file to obtain equipment configuration parameters, and sending the equipment configuration parameters to the embedded equipment. And controlling the working state of the embedded equipment according to the equipment configuration parameters. The invention has the effect of improving transmission adaptation.