221results about How to "Avoid data errors" patented technology

The invention provides a continuous data protection method based on continuous snapshots and a system. A disk or a copy of a logic storage unit can be acquired by snapshots, and a plurality of copiesof disk can be continuously acquired by snapshots so as to realize continuous protection on data. The storage unit can be restored to the previous state by rollback snapshots, or a new logic disk canbe generated by cloning snapshots for user mounting. By continuously storing the state of a storage tank through automatic snapshot technology, continuous protection on data can be realized; when an accident happens, normal system and data state can be rolled back rapidly, and data error caused by soft disasters such as incorrect manipulation, virus attack and the like can be avoided by selectingvalid historical state point data.

The invention discloses a method for processing flow and standard of power-marketing site services on the basis of a handheld terminal, and mainly relates to power-marketing site services such as batched meter replacement, regular replacement, regular high-voltage maintenance, regular low-voltage maintenance, batched new installation, new installation, complete removing, meter reading, actual-reading-ratio spot testing, electricity-stealing checking, general survey of business data, site tests and the like. The method comprises the following steps of: making a power-marketing site-service processing plan and downloading the plan into the handheld terminal; utilizing automatic barcode recognizing and reading functions of the handheld terminal to recognize barcodes of electricity meters on a power-marketing site; by the handheld terminal, automatically associating with the information of the power-marketing site-service processing plan, displaying information such as site customers, metering devices and power supply conditions and the like; verifying the power-marketing site information, carrying out service processing, and utilizing the handheld terminal to record the power-marketing site-service processing information; and after the power-marketing site-service processing plan is finished, uploading power-marketing site-service processing records to a management system, and carrying out backup, management, analysis, statistics and processing on the recorded information.

A nonvolatile storage device includes a nonvolatile memory configured to store user data and management information used to manage the user data on a file system, and a medium controller configured to determine whether a command input from a host device is used for the user data or the management information, the command describing content of processing performed for the user data or the management information, and switch between control methods used for the nonvolatile memory on the basis of the determination result.

The invention belongs to bridge construction, and particularly relates to dynamic real-time monitoring method for concrete bridge prestressed tendon tensioning force and a special prestress construction system. The dynamic real-time monitoring method for the concrete bridge prestressed tendon tensioning force includes the steps of initializing and real-time dynamic control loading. The prestress construction system comprises at least one tensioning device, and each tensioning device comprises a hydraulic station, a reversing valve bank, a jack, an A/D data collecting module, a PLC, a central processing unit, a human-computer interface, a direct force measuring device, a hydraulic force measuring device, a prestressed tendon elongation measuring device, a friction resistance test device and a security alarm device. The double-control requirement, difficult to met in the prior art, for taking stress control as the principle thing and an elongation value as a checking item is met, the dynamic real-time monitoring method has the advantages that construction quality and safety can be effectively ensured, and problems found in the tensioning process can be solved in time.

When a wireless communication apparatus is used indoors where discharge lamps are used, flickering of the discharge lamp can cause transmission path fluctuations in which the amplitude or phase of the reception signal changes suddenly. The effect of this discharge lamp fading is that communication data errors occur easily and communication quality drops. A wireless communication apparatus according to the present invention has a transmission path fluctuation period detection unit (101) that detects the period in which transmission path fluctuation caused by discharge lamp increases, a transmission control unit (102) that sets transmission signal conditions based on the detected transmission path fluctuation period, a transmission unit (103) that generates and outputs the transmission signal based on these conditions, and an antenna (104) for transmitting the transmission signals. The wireless communication apparatus thus comprised stops wireless signal transmission during the transmission path fluctuation period or transmits a wireless signal that is resistant to data errors caused by change in the transmission path environment.

The invention discloses a multipath gorge communication controller which includes a communication port, a main control gorge receiving and transmitting module, a controlled gorge receiving and transmitting module, a dial-up switch, a microcontroller and a logical controller; wherein, the main control gorge receiving and transmitting module is respectively connected with the control host computers with different priorities; the controlled gorge receiving and transmitting module is connected with a controlled device; the logical controller is respectively connected with each gorge receiving and transmitting module; the logical controller is connected with the microcontroller and the dial-up switch in sequence. The invention also provides a multipath control method for multipath gorge communication. The method has the advantages of being capable of searching the states of a plurality of gorge modules in real time, detecting whether data passes or not and opening a signal path in time to transmit the data to the controlled device by adopting a priority mode and a non-priority mode and simultaneously supporting the electric interfaces of RS422/485and RS232. Simultaneously, the data error caused by the competition on the data lines by a plurality of host computers is avoided by setting the signal path delay time through the dial-up switch. The device is convenient to be used and is suitable for project mounting.

A big pattern for a run-in area which allows data reproduction to be performed stably even when the recording density of an optical disc is increased is provided. An optical disc according to the present invention includes tracks, each of which divided into a plurality of recording blocks. Each of the plurality of blocks includes a run-in area and a data area. In the run-in area, a prescribed run-in bit pattern is recordable; and in the data area, bit patterns having a plurality of bit lengths obtained by modulating data as a recording target in accordance with a prescribed modulation rule are recordable. In this optical disc, at least one of spatial frequencies corresponding to the bit patterns having the plurality of bit lengths is higher than a cutoff frequency. The run-in bit pattern recordable in the run-in area includes the bit patterns having the plurality of bit lengths, from which the bit pattern corresponding to the frequency higher than the OTF cutoff frequency has been excluded.

The invention provides a map data processing method and device. The method includes: acquiring information of roads and information of parcels in which the roads are located; according to the information of the roads and the information of the parcels, judging whether the roads belong to different parcels; acquiring first intersection points of the roads and boundary lines among the different parcels if the roads belong to the different parcels; calculating target straight-lines which pass through the first intersection points and are perpendicular to the roads; and using the target straight-lines to divide the roads. According to the scheme, the perpendicular lines are used to divide road attachment objects, which respectively belong to the different parcels, to acquire identification data which have independence and use end points as road lines and attachment object lines, coupling with other data in a map is reduced, a redundancy degree of map data is decreased, and reading/writingefficiency of the map data is improved; and the road lines and the attachment object lines obtained by splitting of the scheme have the same length, and appearing of phenomena of data errors is avoided.

The invention discloses an autonomous learning concentration degree real-time generating method based on an online learning behavior. The method comprises the following steps of S1, forming an autonomous learning concentration degree displaying parameter Es by a video playing parameter, a viewing time length parameter and a concurrent behavior parameter, and forming a learning concentration degreeexpression formula; S2, respectively constructing a data two-dimensional matrix; and S3, through a concentration degree total parameter Es which is composed of three parameters of P1, Rt and Pa, comprehensively reflecting a learning concentration condition which is reflected in each behavior in the online learning process. The method suggests generation of the concentration degree parameter Es according to a teaching video playing behavior, a video viewing time length and concurrent learning behavior data, and acquisition of online learning concentration degree data is automated and simplified, and real-time concentration degree data acquisition and process analysis become possible, thereby totally changing a current analysis thought and method for the online learning concentration degree, so that online learning process guidance and analysis based on data supporting become possible.

The invention provides a liquid drainage control system, and a liquid collection bag and a pressure monitoring unit thereof, connected with a pressure monitoring and controlling unit. The liquid drainage control system comprises an electronic control unit, the pressure monitoring and controlling unit, the liquid collection bag and a liquid pipeline, wherein the pressure monitoring and controlling unit comprises a control valve and a pressure sensing component, the pressure sensing component can be used for monitoring liquid pressure and outputting pressure signals, the control valve controls the connection and the disconnection between a liquid inlet and a liquid outlet according pressure signals; the liquid inlet of the pressure monitoring and controlling unit is communicated with a pipe inserted into a human body, the liquid outlet is communicated with the liquid collection bag through the liquid pipe, the function of helping a patient to drain is achieved, and more risks during use by the patient are effectively avoided.

The embodiment of the invention provides an information sending method applied to enterprise resource planning (ERP) and a device. The method applied to ERP comprises the following steps: determining a receipt type according to a receipt chosen by a user;, obtaining a receipt field corresponding to the receipt type from a database according to the receipt type; displaying an interface containing a receipt field listing which comprises the obtained receipt field; receiving a receipt field chosen from the receipt filed listing by the user; obtaining the receipt data according to the receipt field chosen by the user; and using the obtained receipt data to generate a text and sending the text. The technical scheme provided by the embodiment of the invention can automatically obtain the receipt data according to different receipts, thus improving working efficiency.

The invention provides a BIM and GIS integration method based on semantic fusion. The BIM and GIS integration method comprises the steps: S1, building a unified semantic framework of BIM and GIS integration, and forming a shared domain ontology; S2, obtaining instance information from the BIM data model to fill the shared domain ontology; S3, semantizing the GIS data and filling the GIS data intoa shared domain ontology in an ontology alignment mode; and S4, realizing information query and reasoning based on the fused domain knowledge model. The BIM and GIS integration method researches a method for converting IFC and CityGML into an RDF graph model, so as to enable the heterogeneous data to be expressed by a semantic-based knowledge model, thus solving the fusion problem of heterogeneousinformation of BIM and GIS, classifies, maps and hierarchically organizes classes and relations in the field to form concept integration under a unified framework, well processes and displays representation of knowledge, and infers implicit knowledge through establishment of logic rules.

The invention discloses a digital work ticket management and control system and method for the power industry. The system comprises a work ticket management and control subsystem which generates a work order according to a received maintenance task, generates a work ticket according to the work order, performs electronic signature and personnel qualification judgment on the work ticket to executeissuing and permission, sends an electronic signature verification and personnel qualification judgment request to a PMS subsystem, and synchronizes the work ticket to the PMS subsystem; the PMS subsystem calls a face library and face recognition judgment logic of the safety risk management and control subsystem; an electronic signature verification result is obtained, personnel qualification information of the safety risk management and control subsystem is called regularly, the electronic signature verification result and the personnel qualification information are sent to the work ticket management and control subsystem, and the work ticket is synchronized to the work ticket management and control subsystem; and the safety risk management and control subsystem is used for storing the face library, the face recognition judgment logic and the personnel qualification information, receiving the work ticket synchronized by the PMS subsystem for storage, and realizing integration with thePMS 2.0 system and the safety risk management and control platform.

The invention belongs to the field of research of buffer material multi-field coupling performances in high-level waste geological disposal and in particular relates to a sensor arrangement structure and a method in a buffer material multi-field coupling experiment bench. The invention aims to provide necessary conditions for successfully constructing a buffer material thermal-water-force-chemical multi-field coupling large experiment bench and indicating behaviors of the buffer material under the multi-field coupling condition. According to the structure and the method, three different monitoring areas are divided in a compacted bentonite block layer from bottom to top according to the position of a heater in the experiment bench, different monitoring layers are finely divided in each monitoring area, and the monitoring layers are perpendicular to a cross section of a vertical axis of the experiment bench, wherein two monitoring layers are divided in a bottom monitoring area, four monitoring layers are divided in a middle monitoring area, two monitoring layers are divided in an upper monitoring area, a displacement sensor needs to penetrate through multiple monitoring layers, and a soil stress sensor, an interstitial hydraulic pressure sensor, a temperature sensor, a temperature and humidity sensor and an electrochemical corrosion sensor are positioned in the monitoring layers.

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 relates to the technical field of livestock scientific breeding, and provides a live pig breeding monitoring node, system and method. The monitoring node comprises a radio frequency recognition unit, a water intake collecting unit, an image collecting unit and a data transmission module and is used for obtaining the identity ID, the body temperature, the water intake and drinking picture information of each pig, information collected by the monitoring node is sent to the far end through the data transmission module so that related people can perform remote monitoring; the relatedbody temperature, the water intake and the drinking picture information of each live pig can be quite conveniently monitored automatically, continuously and cooperatively, and the problem that data errors are caused by manual independent monitoring of various indexes of live pigs is avoided, so that the monitoring efficiency is greatly improved, and effective data support is supplied to early warning and diagnosis of live pig fever diseases.

The invention discloses a data storage method, a memorizer control circuit unit and a memorizer storage device. The method comprises a step of recording an error bit number of each preset area of each physical erasing unit; and a step of judging whether the error bit number of one preset area of a physical programmed unit of the physical erasing unit is greater than an error bit number threshold value or not. The method further comprises a step of storing the data in a second programmed mode after carrying out the erasing operation on the physical erasing unit when the error bit number of one preset area of the physical programming unit of the physical erasing unit is greater than the error bit number threshold value. On this foundation, the data storage method provided by the invention can effectively use the poor physical erasing unit to reach the effect of prolonging the service life of the memorizer storage device.

The invention discloses a tax-related data processing method and device, computer equipment and a storage medium. The method comprises the following steps: receiving a tax-related data file sent by aclient; analyzing the tax-related data file to obtain a tax-related data record contained in the tax-related data file; carrying out normative checking on each tax-related data record, and correctingdata which do not conform to a preset text specification in each tax-related data record; acquiring a tax-related data record selected by a submitter from a client, and importing the selected tax-related data record into a preset extensible markup language file template to generate a submission file corresponding to the selected tax-related data record; performing structure verification on the reported file; and if the verification is passed, encrypting the submission file and sending the encrypted submission file to a preset submission platform. According to the technical scheme of the invention, automatic generation of the submission file and file structure verification are realized, and the submission processing efficiency and accuracy of the tax-related information and the transmissionsecurity are improved.

A method for fabricating a flash memory is described. A stacked gate structure and a source/drain are formed on a substrate. An inter-layer dielectrics and a plurality of inter-metal dielectric layers are then formed over the substrate, wherein at least one layer among the inter-layer dielectrics and the inter-metal dielectric layers has a silicon carbide layer formed thereon. The silicon carbide layer is formed to protect the memory device from an UV irradiation, so as to prevent data errors occurring in the memory device.

The invention provides a 4-20mA special analogue acquisition module, which comprises an I/V conversion unit, a V/F conversion unit, an opto-coupler isolation unit, a CPLD (Complex Programmable Logic Device) core control unit and multiple paths of power supply units, wherein 4-20mA analogue quantity is converted into a 1-5V voltage signal through the I/V conversion unit firstly; the voltage signal is converted into a 10K-50KHz frequency signal through the V/F conversion unit; the frequency signal is isolated from the CPLD core control unit through the opto-coupler isolation unit; the CPLD core control unit is used for counting, collecting and operating the collected frequency pulse, and is connected with a background device through an I/O port of the CPLD core control unit finally; the information collected by the CPLD is uploaded; the multiple paths of power supply units supply the electricity to the analogue acquisition module; a +5V power source is converted into a +3.3V and a +/-12V power sources to supply power to the module.

The invention discloses a wood fire spreading process testing device for an irradiation environment, and relates to the technical field of fire science and building safety. The testing device mainly comprises a wood sample, clamp bottom and top plates, a clamp telescopic frame, a radiation plate, a radiation plate telescopic frame, an ash dropping groove, an electronic balance, a thermocouple, a high-definition camera and the like. The angles and heights of the wood sample and the radiation plate can be freely and flexibly adjusted; an external complex radiant heat flow environment can be created through the radiation plate, so that the mass changes of heating, combustion, residue states and the like, physical images and characteristic temperature field deduction rules of wood samples madeof various materials and in various shapes in a forward or backward fire spreading process under different spatial configuration conditions can be researched; and the device can be used for deeply exploring the wood fire spreading process under the combined action of the external irradiation environment and the spatial configuration, and also can be expected to provide a test means for the fire resistance and combustion performance testing of building wood materials and the establishment of classification standards.

The invention provides an obtaining method and device for context information of a user. The obtaining method for the user context information is applied to a distributed system. The distributed system comprises a webpage application server, remote procedure call protocol middleware and a service application server. The method comprises the steps of receiving a remote call request of the service application server; sending a context search request to a context manager, thereby enabling the context manager to obtain the context information of a current operation user from thread local of the service application server; and receiving the context information of the current operation user sent by the context manager. According to the method and the device, the context information of the current operation user can be obtained at the service application server side in the distributed system, the reusability of a service application can be increased, and the inconvenience resulting from displaying and transmitting the context information of the user in interface parameters and a data error resulting from missing parameters can be avoided.