146results about How to "Implement error correction" patented technology

The invention provides a stroke calibration method of a mobile robot. The stroke calibration method comprises the steps that the actual stroke of a left wheel and the actual stroke of a right wheel are obtained; first displacement and the turning angle are obtained according to the actual stroke of the left wheel and the actual stroke of the right wheel; the actual diameter of the left wheel and the actual diameter of the right wheel are obtained, and a milemeter is calibrated according to the actual diameter of the left wheel and the actual diameter of the right wheel; second displacement is obtained through an inertia measuring unit; a displacement amount threshold value is obtained; the displacement distance and the displacement amount threshold value are compared; when the displacement distance is smaller than the displacement amount threshold value, an average value of the first displacement and the second displacement is fused; and when the displacement distance is greater than the displacement amount threshold value, fusion is conducted through smoothing. The error correction of the milemeter is achieved, and the system positioning precision is improved.

A method of operating in a network in which a plurality of stations communicate over a shared medium, comprising providing a physical layer (e.g., PHY) for handling physical communication over the shared medium; providing a high level layer (e.g., PAL) that receives data from the station and supplies high level data units (e.g., MSDUs) for transmission over the medium; providing a MAC layer that receives the high level data units from the high level layer and supplies low level data units (e.g., MPDUs) to the physical layer; at the MAC layer, encapsulating content from a plurality of the high level data units; dividing the encapsulated content into a plurality of pieces (e.g., segments) with each piece capable of being independently retransmitted; and supplying low level data units containing one or more of the plurality of pieces.

The embodiment of the invention discloses an error correction method and device for speech recognition, an electronic device and a readable storage medium. The method includes: acquiring a to-be-corrected first speech recognition result of a user; and according to a user error correction base corresponding to the user, determining a to-be-corrected word in the first speech recognition result as well as a replacement word corresponding to the to-be-corrected word, and replacing the to-be-corrected word in the first speech recognition result with the replacement word corresponding to the to-be-corrected word to obtain a second speech recognition result. According to the embodiment of the invention, for error correction of the speech recognition result of the user, the to-be-corrected word inthe speech recognition result is determined and replaced based on the user error correction base corresponding to the user, so that error correction associated with the user is carried out on the speech recognition result and thus the accuracy of the speech recognition result is improved effectively.

The invention provides a speech recognition result error correction method and device. The speech recognition result error correction method comprises the steps of carrying out phonetic notation on a speech recognition result to be corrected so as to acquire phonetic transcription corresponding to the speech recognition result; acquiring candidate texts according to the phonetic transcription, and determining an optimal candidate text in the candidate texts; judging whether the optimal candidate text meets a preset condition or not; if the optimal candidate text meets the preset condition, determining the optimal candidate text as a correction result of the speech recognition result to be corrected. The speech recognition result error correction method can improve the accuracy of the correction result.

The invention discloses a method and system for cross-label processing of html rich text data with a format. The received html rich text data with the format are converted into a plain text without the format; service processing is conducted, so that the illegal and illicit unsafe factors such as attack codes, nonstandard writing and sensitive words in the text are eliminated; the processed plain text is restored to the prior format according to the method of best similarity matching effect and converted into correct and safe html rich text data with the format, the html rich text data are displayed on a website, and the safety of the website and the quality of the content are improved.

The invention discloses an error correction and detection method of an S mode ADS_B system. The error correction and detection method comprises the following steps of initializing parameters of the S mode ADS_B system, computing reference power value, extracting a received ADS_B information bit and analyzing confidence coefficient, and correcting and detecting errors of the S mode ADS_B system. The error correction and detection method has the advantages that according to the characteristics of ADS_B information data received by the ADS_B, a low confidence coefficient bit is regarded as a root of an ADS_B information error code through judging 'high' and 'low' confidence coefficient of each bit; on the basis that only five error bits can be corrected according to the existing method, a data stream is obtained through utilizing multiple XOR operations of error correction and CRC check codes, and is compared with a 24 bit data stream starting from a first low confidence coefficient bit, so that an error code larger than 5 bits but meeting a certain condition is further corrected; and according to the method adopted by the invention, the ADS_B information data which can be corrected is prevented from being lost, and the error correction and detection capacity of the S mode ADS_B system is improved.

The invention discloses a remote sensing earth surface temperature up-scaling method and a system, and relates to the technical field of satellite remote sensing. According to the invention, a first scale remote sensing image is fully used for calculating a normalized difference vegetation index sensitive to the earth surface temperature, by building a non-linear model between the normalized difference vegetation index and the earth surface temperature and using earth surface evaluated temperature difference of the normalized difference vegetation index under two scales, error correction to up-scaled earth surface temperature is achieved, and errors caused during up-scaling of the earth surface temperature are reduced.

The present invention relates to a power battery health state assessment method. The method comprises the steps of: selecting two voltages in a battery cell charge process, and obtaining a charge capacity between the two voltages; determining a corresponding relation between the charge capacity between the two voltages and a health state, and establishing a health state estimation model accordingto the corresponding relation; and solving the health state according to the health state estimation model. The health state estimation model is simple and convenient to establish, the estimation process is small in calculated quantity, and rapid and real-time online estimation of the health state can be achieved; part of battery charge monitoring data is only needed to perform rapid and accurateestimation of the health state of the battery, and therefore, fault early warning in a sub-health state of the battery is achieved, and the power battery health state assessment method and system andthe electric vehicle provide basis for maintenance of a battery system. The present invention further provides a power battery health state assessment system and an electric vehicle.

The invention discloses an anti-irradiation protection method for a Ternary Content Addressable Memory (TCAM) of space devices, characterized by firstly constructing a TCAM anti-irradiation protection system comprising a refresh cycle calculating module, a refresh control module, an ECC coding module, and an ECC decoding error correction module, wherein the refresh cycle calculating module determines a refresh cycle value tsp, the refresh control module conducts the refresh control of RAM according to the tsp, and the ECC decoding error correction module carries out decoding error correction on the data read from the RAM; when the ECC coding module receives XWE of refresh control logic, the ECC coding module writes the data into the RAM, if the ECC coding module does not receive the XWE, the ECC coding module receives the data processed by decoding and error correction sent by the ECC decoding error correction module and carrying out ECC coding on the data again. According to the invention, there is no need to connect a special coding circuit for TCAM internal connection, the frequent refresh of TCAM is prevented, the error correction of error data is realized, and the problem of data anti-irradiation storage protection of TCAM devices in outer space is effectively solved.

The invention discloses an electric system simulation auxiliary application system of a PSD-BPA, and belongs to a practical system in the field of electric system simulation. The system comprises an original data layer, a PSD-BPA application program layer, a PSD-BPA calculation result layer, a PSD-BPA auxiliary platform layer and a PSD-BPA auxiliary platform file layer, wherein the PSD-BPA auxiliary platform layer comprises a file error correction and fast editing module, an N-1 and N-2 control set generation module, a stability calculation fault set generation module, a batch calling function module, an engineering management module, a data management module, a engineering reading load flow calculation result module, a batch reading stability calculation result module and a reading short circuit calculation result module, and is used for realizing various auxiliary functions of an auxiliary system, and meanwhile further expanding other auxiliary functions according to the requirement. The system is clear in framework, simple to operate and high in practicability and expandability, and can improve the efficiency of computation personnel in performing power grid mode computation through a PSD-BPA simulation system, thereby improving the working efficiency.

The invention relates to an error correction method and system for a voice control instruction. The error correction method includes the steps that when the received voice control instruction meets error recognition conditions, according to the mapping relation between a prestored voice control instruction and a control code, a controlled terminal determines the control code corresponding to the received voice control instruction and sends the received voice control instruction and the determined control code to a preset server so that the server can send the correct mapping relation between the voice control instruction and the control code, or the voice control instruction or the control code back to the controlled terminal on the basis of the received voice control instruction and the control code; according to the received mapping relation between the voice control instruction and the control code, or the voice control instruction or the control code, the controlled terminal updates the mapping relation between the prestored voice control instruction and the control code, so that the voice control instruction recognized in error is corrected, and accuracy of voice control is improved.

The invention discloses a coding method, a decoding method, an error correction method and device. The coding method is suitable for executing RS coding so as to perform error correction on data including one symbol error code transmission in one clock period. The code word length of information code data input in one clock period is k, the code word length of code data output by the RS coding isn, the code word length of corresponding check code data is 2t, and 2t is equal to n-k, the length of one symbol is t. The coding method comprises the following steps: carrying out combination XOR oninput information code data and a preset check matrix to obtain check code data; combining the information code data with the check code data to obtain RS code data, and outputting the RS code data; wherein the check matrix has 2t rows and n columns, the check matrix comprises a first interval and a second interval, the first interval comprises k/t continuous t-row and t-column unit matrixes, andthe second interval comprises a 2t-row and 2t-column unit matrix. By adopting the scheme, the coding efficiency can be improved.

The invention provides a depth imaging system and a temperature error correction method. The temperature error correction method comprises the steps that a first reference structure light image and atarget structure light image are obtained; temperature error correction is conducted on the first reference structure light image, and a second reference structure light image is obtained; and the second reference structure light image and the target structure light image are utilized to conduct depth calculating, so that a depth image is obtained. Through the depth imaging system and the temperature error correction method, error correction of reference structure light can be achieved, thus error correction of depth measurement is achieved, and the measurement accuracy of the depth imaging system is improved finally.

The invention discloses a method for achieving intelligent warehousing through an RFID/industry WIFI technology. The method includes the following steps that firstly, a central server is deployed in a warehousing management center, and intelligent warehousing system software (a server side) and a warehousing database are installed; secondly, a traditional forklift is intelligently transformed based on the RFID/industry WIFI technology; thirdly, an industry WIFI network covers a warehouse working area, and an industry WIFI wireless network which is stable, reliable and short in time delay is laid in a warehouse range; and fourthly, an intelligent mark based on RFID is arranged on a warehouse location/goods packaging box. The method conforms to the development trend of the industry 4.0 and intelligent manufacturing, the problems about reliability and stability of RFID fast reading and writing in the warehousing logistics environment are solved, and in addition, intelligent control and management of warehousing are automatically achieved through the functions of system integrating, automatic reading and writing, acousto-optical early-warning and the like; and the utilization rate of a warehouse can be increased, the input of labor force is reduced, and the logistics cost of an integral industry chain especially the manufacturing industry is reduced. The method is suitable for application of warehousing logistics enterprises.

The invention provides an entity error correction method and system for a voice transcription text. The method comprises the following steps: carrying out pinyin labeling on entity vocabularies extracted from a target voice transcription text; clustering the entity vocabularies by utilizing the marked pinyin and an editing distance based on pinyin similarity to generate a clustering result; and determining the entity vocabulary with the highest occurrence frequency in the same category in the clustering result as a standard entity vocabulary, and replacing other entity vocabularies in the category with the standard entity vocabulary. Entity vocabularies are clustered by utilizing an editing distance based on pinyin similarity; the pinyin similarity is taken as a reference factor and the pinyin similarity is added into an editing distance algorithm; the ability of distinguishing synonyms and phonetic words is enhanced, the clustering result better conforms to the actual situation of thevoice transcription text, other entity vocabularies are replaced with the entity vocabularies with the highest occurrence frequency in the same category according to the clustering result, error correction of the voice transcription text is achieved, and then the accuracy of the final voice transcription text is improved.

The present invention discloses a multi-link transmission control method for achieving a transmission control between a sender and a receiver through a control structure composed of a physical layer, a transport layer and an application layer. Said method comprises the following steps: the sender constituting transmission frames through the transport layer and setting up link control mode and data stream; the transmission frames being encapsulated continuously through the application layer and being transmitted to the receiver through the physical layer; the receiver receiving the transmission frames through the physical layer, storing the frame information, resolving the transmission frames through the transport layer, judging the correctness of the transmission frames constituted according to the transmission frame information resolved, and returning the correctness information to the receiver; the receiver extracting continuously application data from the transmission frames constituted by the sender, through the application layer; the sender receiving the correctness information through the transport layer, judging the integrality of the transmission frames based on the received correctness information, and setting corresponding linking states. By adapting said method, sampling control, collection transmission control, data exchange control and data communication transmission control of signals can be completed with a super high velocity.

The invention discloses a language model error correction method, device and equipment for improving voice recognition capability and a storage medium. The method comprises the steps: obtaining text information obtained through voice recognition as a to-be-corrected text, obtaining each word in the to-be-corrected text and the score of each word, and determining the word with the score lower thana corresponding threshold as a to-be-corrected word; determining a word before the to-be-corrected word in the to-be-corrected text as a to-be-corrected precursor word, and determining an alternativeword matched with the to-be-corrected precursor word in a word bank as a to-be-corrected alternative word; and respectively replacing to-be-corrected words in the to-be-corrected text with the to-be-corrected alternative words, obtaining scores of to-be-corrected alternative words, and determining a to-be-corrected alternative word with the highest score as a word obtained by correcting the to-be-corrected word, wherein the score of any word is the probability that any word appears on the premise that the word located in front of the any word in the to-be-corrected text appears, and the word bank comprises a plurality of precursor words and a plurality of alternative words matched with the precursor word. The voice recognition accuracy can be improved.

Disclosed in the present invention is an access device for a message-type memory module, comprising: a read-write module, configured to store SCBCs to be stored within a current read-write cycle in corresponding DRAMs; and a processing module, configured to calculate a group of error detecting codes for each SCBC in a memory row and calculate a group of error correcting codes for all the SCBCs in the memory row; wherein the read-write module is further configured to store the error detecting codes in the (M+2)th DRAM of the memory row and store the error correcting codes in the Zth DRAM of the memory row, Z is a positive integer and 1≤Z≤(M+1), and the error correcting codes in continuous (M+1) memory rows are respectively stored in different DRAMs. The embodiments of the present invention further provide a corresponding method. According to the technical solution of the present invention, the SCBCs are used as a basic read-write unit to carry out fine-grained coding protection and support diverse-grained access, so that any multi-bit errors in single DRAMs can be corrected.

The invention relates to the field of photoelectric communication, and discloses a data transmission method and a data transmission system for a digital video optical transceiver system. According to the data transmission method and the data transmission system, coding redundancy is adjusted according to the error rate, whether or not a forward error correction coding mode is needed and which forward error correction decoding mode of the coding redundancy is adopted are determined dynamically, and accordingly, forward error correction coding/decoding technology based adaptive error detection and correction are achieved. The data transmission method includes receiving video data and information representing the coding redundancy of the video data through an optical fiber; selecting the corresponding forward error correction decoding mode to decode the video data according to the information representing the coding redundancy; calculating the error rate of the decoded video data; adjusting the coding redundancy according to the error rate; according to the adjusted coding redundancy, selecting the corresponding forward error correction coding mode to code the to-be-sent video data; sending the video data and the information representing the coding redundancy through the optical fiber.

The invention belongs to the technical field of programmable logic device and particularly discloses a programmable logic device. The programmable logic device comprises an address circuit module (310), a comparison unit (320), an SRAM (Static Random Access Memory) module (380), a logic array (390) and a resistance RAM module (370) which is used for overcoming the soft error rate in the SRAM module, wherein the resistance RAM module realizes single chip integration with the address circuit module, the comparison unit, the SRAM module and the logic array. The programmable logic device not only can overcome the SER (Symbol Error Rate) problem in the SRAM, but also has the characteristics of single chip, small size, radiation resistance, low power consumption and low cost.

The invention relates to a method for printing pieces (1) with unique identifications, in particular to plate printing pieces made of natural material or synthetic material, such as plasterboards, timber, woodworks, glass, tiles and the like, which comprises an ink-jet printer (11) with an ink-jet printhead (19).The ink-jet printhead is equipped with an ink-jet nozzle (17) with at least one printing row.An image (6) to be printed is converted into the control data of the ink-jet nozzle (17) by a print data providing module (32), so that the image is transferred to the surfaces (2) of the printing pieces (1) in a point-to-point mode.An unique identification mark (30) is combined with the image (6) to be printed to form an identification feature (4) by the print data providing module (32).The identification feature is transferred onto the printing pieces (1) together with the image (6).The macroscopic characteristic of the image transferred onto the printing pieces is maintained by the combination of the identification mark (30) and the image (6).The invention also relates to a printing device for implementing the above method and the printing pieces generated by the method.

The invention relates to the technical field of correction methods and discloses a cyclic Hamming code correction method based on parallel encoding and decoding . The method includes firstly, analyzing the structure of a conventional serial CRC (cyclic redundancy check) encoding circuit to acquire a recurrence relation of data in six registers of the CRC encoding circuit; secondly, extending the serial recurrence relation to acquire a relation expression between check bits and information bits in parallel encoding; thirdly, performing parallel encoding according to the relation expression between the check bits and the information bits in parallel encoding; fourthly, acquiring a relation expression between novel check bits and novel encoding codes in parallel decoding, and decoding to acquire codes; and fifthly, correcting the codes acquired by parallel decoding. Input data are encoded and decoded in a parallel manner, encoding and decoding speed of input signals is increased, correction of the input signals is achieved, and added check bits are few.