1259results about How to "Guaranteed accuracy" patented technology

The invention discloses an intelligent detection device of defects of a mobile phone outer shell based on machine vision. The device comprises a transmitting device, detection systems, a degraded product unit and a computer; the transmitting device comprises two transmitting strips and a diversion air cylinder; each detection system respectively detects the frontage side, the left side, the rightside, the front side and the rear side of the mobile phone outer shell; each detection system comprises an illumination unit and an image collecting unit; the illumination unit illuminates one side of the outer shell of the mobile phone, and the image collecting unit photographs; collected image signals are transmitted to the computer; the computer recognizes the degraded mobile outer shell, and transmits the serial numbers of the mobile outer shell with defects to a degraded product rejecting unit; and the degraded product rejecting unit rejects the mobile phone outer shell with defects. According to the invention, defects such as scratches, burr, discoloration, dent, bubbles of the mobile phone outer shell can be detected, the degraded products are separated automatically, and the device has the characteristics of intelligence, high efficiency, stability and high accuracy.

The invention discloses a clock modulating algorism based on minimum square law pattern, which comprises the following steps: building mathematical model of phase difference; adopting phase-detector result of front N s to control the frequency of high-stability crystal per s; reserving the phase-detector result as parameter of next second preestimation; compensating the accumulated phase difference through 2 delta phase-detector result; controlling the frequency fluctuation of high-stability crystal within little scale; affirming the output precision of clock.

The invention discloses a method for reconstructing curved surface of complex space that solves the layered curved surface reconstruction problem existed in the complex geologic structure of three-dimensional geological modeling by adopting complex space curved surface interpolation method and provides new ideas for the isoline drawing and geological block forming. The invention has the advantages that: the method solves the layer interpolation problem existed in the complex geologic structure, not only supports the positive and reverse faults as well as the vertical fault, but also is suitable for the multiple applications of geologic modeling; by adopting the layer fitting under the limitation of the polygonal borders of the faults, the seamless fitting of the layers and the faults is realized and the difficult problem that a conventional grid interpolation scheme layer position cannot be strictly crossed with the faults is solved; and by adopting the method of mixing with the grid layer interpolation, the method not only ensures the fast data treatment, but also ensures the fitting precision.

The invention discloses a mechanism for mounting and adjusting spray heads of an inkjet printer. The mechanism comprises a base plate and an adjusting mechanism, wherein the base plate is provided with at least two spray head mounting positions; each spray head mounting position is provided with a fixed spray head or a movable spray head; the fixed spray head is fixedly arranged on the spray head mounting position; the movable spray head is connected with the adjusting mechanism; and the adjusting mechanism adjusts the transverse and longitudinal relative positions between the spray heads and adjusts the angle between the spray heads by controlling the movement of the movable spray head. The mechanism for mounting and adjusting the spray heads of the inkjet printer has a simple structure and high adjustment accuracy, can adjust the spray heads in a plurality of directions, and is convenient to mount and maintain.

The invention provides a method for segmenting a white blood cell image, which is characterized by comprising the following steps: firstly carrying out binaryzation on the green component picture of a color white blood cell image to obtain an initial interested region based on a significance attention mechanism of human vision; carrying out cancellation and mergence on a region by labeling the initial interested region to obtain an adaptive significance window of each cell; and finally realizing segmentation of nucleuses and cytoplasm in each adaptive significance window by a boundary-extending method. The segmentation method is used to realize the fast segmentation of the white blood cells, particularly the accurate segmentation for high-capacity pictures which are the non-standard dyed and contain overlapped cells.

The invention provides an AUV (autonomous underwater vehicle) interactive auxiliary positioning system and an AUV interactive auxiliary positioning method based on an SINS (strapdown inertial navigation system)/LBL (long base line). The positioning system includes the SINS mounted on an AUV, an LBL underwater sound positioning system laid on the seabed, and a data processing unit, wherein the LBL underwater sound positioning system includes hydrophones laid on the seabed at four known positions; the data processing unit includes a generalized cross correlation computing module, a correlation peak screening module, a position calculating module, a delay inequality calculating module, and a Kalman filter module; the SINS includes an IMU (inertial measurement unit) element and an IMU processing unit. According to the invention, the problem of long-time error accumulation of the SINS is solved, compensates positioning errors caused by multipath acoustical signal propagation in water are compensated, the long-time autonomous underwater positioning and navigation precisions of the AUV are ensured, and application of a GPS (global position system) and other radio positioning systems is avoided, so as to solve the problem that the AUV needs to rise to the water surface to correct errors during underwater operation, save time and energy consumption of underwater operation, and improve the underwater operation efficiency of the AUV.

The invention discloses an abrasive belt grinding device applicable to inner and outer cambered surfaces of blades of aerospace blisk. An X axis transverse feed mechanism, a Y axis transverse feed mechanism and a Z axis longitudinal feed mechanism form a grinding head feed mechanism; an A axis deflection motor, an A axis deflection bracket, a B axis motor, a gear train bracket, a C axis motor, a C axis revolving bracket and the like form a position adjusting mechanism of the grinding head. The abrasive belt grinding device provided by the invention guarantees rigidity of a grinding head mechanism and a work piece clamping mechanism through rational distribution of the grinding head feeding, the position adjustment of the grinding head and the position and angle adjustment of the work piece and through combination of space in six degrees of freedom by a short transmission chain; a contact wheel and an abrasive belt can cut into a narrow gap between two blades of the blisk, so as to ensure the contact between the contact wheel and the work piece to be stable when the contact wheel rotates at a high speed; so that the abrasive belt grinding device can improve the work efficiency, and meanwhile, dimensional accuracy of complex cambered surface of the work piece in processing can be guaranteed, the quality of the molded surface is ensured, the rate of qualified products is improved, the labor intensity of workers is reduced and the management and production costs are lowered.

The present invention provides a method for processing an instant message and a device thereof. A terminal A responds to input of a user and generates a first request message, wherein the first request message comprises indicating information for withdrawing the instant message, withdrawing type and mark of the instant message to be withdrawn, and the instant message to be withdrawn is the instant message which is already transmitted by the terminal. The instant message arrives a terminal B through a server 101. The terminal B updates the instant message to be withdrawn according to the withdrawing type. Through the method of the invention, the user can withdrawn the transmitted instant message. Higher convenience and higher flexibility are obtained for the user.

The invention discloses a detection method for thermal conductivity and thermal diffusivity of an anisotropic material, which adopts signal frequency domain characteristics to detect the thermal conductivity and the thermal diffusivity of the anisotropic material by using a harmonic detection technology. According to the method, micro metal detectors with a certain sizes and shapes are arranged on a surface of an sample in different directions; the micro metal detectors are simultaneously adopted as temperature sensors; with adopting alternating current heating, three harmonic waves and fundamental waves of the micro metal detectors are detected through a lock-in amplifying technology; the thermal conductivities and the thermal diffusivities of the anisotropic material in different directions are determined according to a relation between the frequency response characteristics of the micro metal detectors and the temperature changes of the micro metal detectors. According to the present invention, with adopting the harmonic detection principle and the data treatment method, the thermal conductivities and the thermal diffusivities of the anisotropic material in the directions of x,y and z can be obtained according to the width and the arrangement localities of the micro metal detectors.

The invention discloses an inland river water area abnormal behavior ship automatic identification system and method; the method comprises the following steps: obtaining inland river water area ship navigation AIS message information, hydrology meteorology department environment information, CCTV video images and depth of field images in real time; parsing ship abnormal behavior mode types, and building a ship abnormal behavior sample database; building a depth learning network model to parse ship behaviors, thus obtaining ship abnormal behavior mode and GPS positioning information; detecting the ship in the CCTV video image, using the depth of field image to obtain the ship three dimension space information, and thus obtaining the ship video positioning information; fusing the GPS positioning information, the video positioning information, the ship abnormal behavior mode and ship detected characteristics, carrying out ship target association, and automatically identifying the abnormal behavior ship in the CCTV video. The method and system can effectively solve the problems that the abnormal behavior ship cannot be easily identified in the CCTV video; the method and system are high in identification rate, can provide safety warning for waterborne traffic, thus further improving the maritime affair supervision intelligent level.

The invention discloses a pericardium thoracic cavity puncture and hydrops drainage device for cardiology department. The pericardium thoracocentesis and hydrops drainage device comprises a positioning fixing device, a movable puncture device, a negative-pressure drainage device, a medicine feeding device, a controller and a bracket; a puncture assembly is fixed and positioned through a fixing clamp and an arc-shaped angle ruler; an infrared generator is used for guiding medical personnel to adjust the angle, so that the puncture accuracy is guaranteed; the controller is indirectly manipulated through a wireless remote controller and doctors can more conveniently operate; in a drainage process, once if a puncture needle enters a pericardium, a driving button can be turned off; a rebound device is composed of a first rubber block, a second rubber block, damping springs and ear stopping blocks, and is used for rapidly rebounding, so that danger of puncturing the heart by a needle core is avoided; hydrops in a drainage pipe can be rapidly cleaned by arranging a cleaning pipe valve, and the hydrops is prevented from reflowing in an infusion process. Totally, the pericardium thoracic cavity puncture and hydrops drainage device is accurate in positioning and simple in operation; time and labor are saved and the working load of the medical personnel is greatly alleviated.

The invention discloses an intelligent system and an intelligent method for measurement, payment and settlement management. The system comprises a graphic module, a data management module, an entry module and a report module, wherein the graphic module is used for graphical displaying project data input by sub-projects of a construction project; the data management module is used for performing the sub-project measurement treatment of the project data according to the logic relations between the project data of the construction project; the entry module is used for entering actual development data of the project by project staff with different authorities according to actual development conditions of the project and generating an actual measurement list of the project; and the report module is used for outputting construction project data result reports of the sub-projects according to the data recorded according to the actual development conditions of the project. The system and the method can carry out effective information management of a measurement service in project construction.

The invention provides a concrete cracking overall process testing device based on a true environment. The device comprises a base, wherein an environmental box, a concrete sample containing device, a true environment simulation system and a loading system are arranged on the base; the environmental box is isolated from the surroundings; the concrete sample containing device is arranged in the environmental box and comprises a fixed chuck, a movable chuck and a sample middle fixed side formwork, the fixed chuck, the movable chuck and the sample middle fixed side formwork are spliced to form a concrete sample containing space, the fixed chuck is fixedly arranged in the environmental box, and the movable chuck is movably arranged; the environmental box and the concrete sample containing space are provided with temperature sensors; the true environment simulation system at least comprises a temperature regulation device which is arranged in the environmental box and the concrete sample containing device to simulate the set true environment at temperature; the loading system enables the movable chuck to be fixed or move in the axis direction, and a displacement/deformation sensor is arranged on the movable chuck to sense deformation of a concrete sample; a stress sensor is arranged to sense the load borne by the sample. The device can be used for testing the whole process of development of temperature, stress and other factors of concrete in a changeable environment from the test angle.

The method includes following steps: (1) after receiving authentication request carried by certificate of second party and sent from the second party, first party in portable type storage devices and terminals sends certificate of second party to center of authentication (CA) for digit certificate; (2) after receiving certificate of second party from the first party, CA authenticates whether the certificate of second party is valid, and sends the authenticated result (AR) to the first party; (3) after receiving AR from CA, the first party determines whether authentication for the second party is passed based on the received AR. The system includes portable storage devices, terminals, and CA for digit certificate. Being able to guarantee communications security between portable storage devices and terminals, the invention simplifies flow for authenticating ID, and saves storage space spending of portable storage devices.

The invention discloses a bioluminescence tomography reconstruction method. The method includes the steps: acquiring signal distribution conditions of a bioluminescent light source in a small animal body on a body surface by the aid of a bioluminescence tomography data acquisition platform and acquiring anatomical structure information in the small animal body by the aid of a Micro-CT (computed tomography) system; and constructing a system equation based on a three-order simplified spherical harmonic approximation model of a radiative transport equation and a finite-element mesh, and solving the system equation by a compressive sensing sparse regularization method to obtain accurate positioning information of the light source in the small animal body. By the aid of the bioluminescence tomography reconstruction method, three-dimensional light source distribution and the positioning information in the small animal body can be inversed through the two-dimensional light source distribution and the anatomical structure information of the small animal body surface.

The invention relates to an early warning method at four-grads of power network operation, and belongs to the automation field of electric power system management. The method includes the following steps: a safe, stable and comprehensive evaluation is carried out at four-grads according to time scales; the first level is to carry out security evaluation to the real time situation of the power network, and to identify the safety level of the power network operation; the second level is to carry out security collation to the power network forecast operation situation in the next 15 minutes (before the power network operation), and to send a security alarm; the third level is to carry out security collation to a power-generating plan and a servicing plan of the next day; and to send an alarm; the fourth level is to carry out security collation to a power-generating plan and a servicing plan of the next week. The early warning method ensures that the power network can run safely and stably through the safety early warning at four time scales, namely real time, pre-operation, previous-day planning and week planning.

The invention provides a peer identification method, a device, a system and a computer storage medium. The method comprises: determining an effective capture time period and a predetermined coverage area according to the first data set, acquiring capture data of the predetermined coverage area within the effective capture time period, and storing the capture data as a second data set; extracting aface image therein based on the second data set and storing the face image as the second data set; clustering the face images in the second data set to obtain accurate peer recognition results. According to the method, the device, the system and the computer storage medium of the invention, accurate and comprehensive snap data is obtained through area searching and secondary recognition of snap pictures, and face peer analysis is carried out to ensure the accuracy of the result.

The invention discloses a device for realizing high-speed real-time communication by optical fibers based on an FPGA (Field Programmable Gate Array). The device comprises an application layer, a transmission layer and a physical layer, wherein the transmission layer comprises an FPGA kernel control module which is composed of a sending end and a receiving end; the sending end comprises a first storage module for receiving and caching data of the application layer, a sending end controller for synchronously and cyclically accomplishing the framing sending of data according to the application layer, and an encoding module for encoding data and sending the encoded data to the physical layer. The receiving end comprises a decoding module, a receiving end controller and a second storage module, wherein the decoding module is used for receiving data from the physical layer and decoding the data; the receiving end controller is used for accomplishing the de-framing reception of data, takes a clock recovered from a 10-bit serial data stream received from the physical layer as a receiving end work clock, and adjusts the phase of the receiving end work clock in a synchronous character center aligning way so as to ensure the synchronous real-time transmission of sending end data and receiving end data; and the second storage module is used for receiving and caching data and sending the data to the application layer. The device can meet the requirement of an optical fiber high-speed communication system on high-speed real-time data transmission.

The invention provides a gum preparation method which has the advantages that the gum is punched in one step, the preparation method is simple, the cost is low and the size accuracy of the prepared gun is high. The gum preparation method comprises the following steps of: attaching a double-faced adhesive tape onto a release film B; tearing off the self-contained release paper of the double-faced adhesive tape and attaching the double-faced adhesive tape onto a release film A; attaching a protection film C onto the release film B; punching the film by using a molding cutting die, wherein the inner frame of the cutting die cuts off the release film A and the double-faced adhesive tape, the outer frame of the cutting die cuts off the release film A, the double-faced adhesive tape and the release film B, the release film A and the double-faced adhesive tape form a cutting mark with an inner frame and an outer frame, and the release film B form a cutting mark with an outer frame; pulling off the release film A in the inner frame and attaching a protection film E, wherein the protection film E covers an area in the outer frame of the release film A; and removing the double-faced adhesive tape inside the protection film E and the inner frame, and the release film A, the double-faced adhesive tape and the release film B outside the outer frame, and attaching a protection film D onto the release film A.

A special fixture for processing an inclined conical nozzle steam passage and a method thereof relate to a fixture for processing the inclined conical nozzle steam passage and a method thereof. The invention solves the problem that at present, no special fixture for processing the inclined conical nozzle steam passage exists, and when a tapered hole of the nozzle steam passage is processed, a drilling bit is difficult to be centered. An indexing plate of the special fixture is provided with twenty indexing through holes along the periphery direction; the center of a stepped through hole and the center of the indexing through holes are on one periphery; a spotting spindle is mounted on the indexing plate in a plug-in manner; the processing method is as follows: using a milling cutter with diameter of 13mm to feed from a P point so as to process a plane C which is vertical to the central line of the tapered hole to be processed; and stopping feeding when the milling cutter mills to a Q point, wherein the center of a hole pitch circle having diameter of 13mm and milled by the milling cutter is the core-bit of the drilling bit. The special fixture solves the problem that at present, nospecial fixture for processing the inclined conical nozzle steam passage exists; and the inclined conical hole of the nozzle stream passage processed by the method has high position accuracy.

According to the roadside parking vehicle real-time acquisition management system and management method provided by the invention, inspection equipment is adopted for inspection, a manual inspection mode is replaced, the inspection efficiency is improved, and the inspection cost is reduced; a vehicle tail license plate scanned and identified by a front camera and a vehicle head license plate scanned and identified by a rear camera in the acquisition subsystem are mutually verified, so that the accuracy of license plate information is ensured, and rapid snapshot of illegally parked vehicles isrealized; a core analysis module of the inspection subsystem compares the parking coordinates, obtained in real time, of the vehicle with the planned road parking coordinates collected by a GPS collection module, and rapidly judges whether the vehicle is located within the parking range or not; the network transmission module transmits the information of the vehicle to the management subsystem inreal time through the Internet, thereby achieving the reporting and charging of the standard parking information. The roadside parking vehicle real-time acquisition and management system is fast and safe in the whole process, realizes intellectualization, can monitor illegally parked vehicles, and can replace a manual inspection mode.

The invention discloses a method for acquiring a geometric correction parameter of a PET (positron emission tomography) system. The method comprises the steps of 1) building a virtual PET system environment by using computer software; 2) inputting the related parameter of a real PET system of which the geometric correction parameter needs to be measured into the virtual PET system environment; 3) designing a specific virtual measured object in the virtual PET system environment; 4) scanning the specific virtual measured object in the virtual PET system environment to acquire coincidence data; and 5) performing difference analysis to the coincidence data to obtain the geometric correction parameter. According to the method, preparation for object PET equipment and a measured object model is eliminated, and the process of acquiring the geometric correction parameter is simple, economical, quick and free from the limit of environment factor, and therefore, the accuracy of the geometric correction parameter is ensured. In addition, the method can be executed before or after development and production of the PET system, so that the design, development and production period of the PET system is accelerated.

The invention discloses an automatic rectangular tube feeding device which comprises a rack, a feeding box, horizontal sorting platforms, at least two sets of material poking devices arranged on the rack, at least two sets of overturning mechanisms arranged on the rack and a horizontal conveying roller set arranged on the rack and used for longitudinally conveying rectangular tubes. Each material poking device set comprises a material poking lifting frame arranged on the rack in a vertically lifting mode. The material poking lifting frames are driven by a material poking lifting power device and arranged on horizontal material poking frames in a horizontally sliding mode. The horizontal material poking frames are driven by a horizontal material poking power device and provided with material poking rods. The overturning mechanisms comprise jacking rods, and the jacking rods are driven by an overturning lifting power device. The horizontal conveying roller set is arranged on the rack. By means of the automatic feeding device, automatic feeding of the rectangular tunes can be achieved, and the rectangular tubes are turned over and conveyed out according to the actual requirements, so that the rectangular tubes can be cut by a downstream process conveniently, rectangular tube cutting is more automated, and overall efficiency is higher.

The invention discloses a method and a system for estimating the charge state of a lithium ion power battery. The method comprises the following steps: establishing a first-order RC equivalent circuitmodel of a battery, and establishing a state equation of the model; defining the state vector of the state equation, wherein the state vector comprises a model parameter of the model and an OCV valueof the battery; solving the expression of the coefficient matrix of the state equation according to the state vector; carrying out online identification of the model parameter and the OCV estimationvalue of a model through adopting the real-time working current of the battery as the system excitation, the real-time working voltage as an observed quantity and the extended kalman filtering algorithm; according to the OCV estimation value and the OCV-SOC relation curve of the battery, obtaining the SOC estimation value of the battery through the interpolation method. According to the invention,during the usage process of the battery, the parameter of the model can be identified in real time in the online manner, and the parameter of the model is corrected in real time. As a result, the OCVestimation value with high accuracy is estimated.

The invention discloses a log backup method, a log backup device and a smart card. By the method and the device, the backup speed of data in the smart card is improved, and a memory consumed by data backup is reduced. The log backup method comprises the following steps of: dividing communication data corresponding to the current service communication into a plurality of log sub-items, and caching the log sub-items to a volatile storage medium; and when the current service communication is finished, writing the log sub-items cached in the volatile storage medium in the corresponding backup area in a non-volatile storage medium at one time.

The invention provides a train tracking method based on information redundancy. According to the technical scheme, under a normal communication state circumstance, a train is directly tracked through a train tracking system according to real-time positions sent by a VOBC preferentially, and VOBC information is verified through a ZC and interlocking equipment; under the condition that a communication failure happens to the VOBC, the train is tracked through track position information sent by ZC equipment, and meanwhile, verification is carried out according to interlocking equipment information; when communication failures happen to the VOBC and the ZC at the same time, the position of the train is tracked in a backup mode of the interlocking equipment. Three tracking modes are automatically switched over according to the communication states of the train tracking system and an external system to complete continuous tracking of the position of the train, precision of data in the tracking process of the train is excellently guaranteed because of adding of redundant information, and therefore the train can be tracked in a real-time, accurate and continuous mode through the method, and timeliness and accuracy of decision-making of dispatchers are improved to a great extent.

The invention relates to a fully-automatic chemiluminescent immunoassay analyzer. The fully-automatic chemiluminescent immunoassay analyzer comprises a frame and a control system, a sample zone, a lath feeding system, an incubation zone and a lath detecting system are sequentially arranged on the frame from the left to the right, a fluid path system is arranged below or at the right side of the incubation zone, a reagent zone is arranged below the incubation zone and below or at the right side of the lath detecting system, a sample arm is arranged at the left side of the frame, a reagent arm is arranged at the right side of the frame, a first push rod arm is arranged above the lath feeding system on the frame, a second push rod arm is arranged in the incubation zone, and the lath feeding system, the incubation zone, the lath detecting system, the fluid path system, the sample arm, the reagent arm, the first push rod arm and the second push rod arm are respectively electrically connected with the control system. The fully-automatic chemiluminescent immunoassay analyzer has the advantages of simple structure, convenient operation, high automation degree, and supporting of the non-shutdown loading.

The invention discloses an exhaust protection control method and system for an air conditioner. The control method comprises the steps of setting an exhaust temperature threshold value T0 and an exhaust temperature duration threshold value t0; detecting the exhaust temperature T of a compressor and the temperature duration t; and comparing the exhaust temperature T with the exhaust temperature threshold value T0, comparing the exhaust temperature duration t with the time threshold value t0 and judging an exhaust protection mode of the compressor according to the comparison results. According to the method and the system, frequent frequency conversion or starting and stopping of the compressor can be effectively avoided, the use efficiency of the system can be improved, and the service lifeof the compressor can be prolonged.

The invention provides an auxiliary design system and a design method for a spatial database under the support of a knowledge base. The auxiliary design system comprises a knowledge base component used for forming the knowledge base designed by an auxiliary spatial database according to the related rules of building the database and forming a spatial database template according to the defined rules in the knowledge base; a structural design component of a database used for setting various layers of contents and the corresponding relation of the spatial database based on the spatial database template according to the requirements of building the database, so as to form the structure model of the spatial database; an establishing component of the structure model of the spatial database used for controlling formation of the structure model of the spatial database according to various layers of contents and the corresponding relation of the spatial database set by the structural design component of the database and used for the auxiliary design of the spatial database; and an output component of the spatial database used for outputting the spatial database model obtained in the form of database files and generating documents of a spatial database building scheme.

The invention provides a method for mining Internet hot words. The method comprises the following steps: initializing a word graph and a background library; identifying an entity string and a non-entity string; updating a word string statistical index; calculating the popular degree of the word string; and sorting the popular degree of the word string, and outputting the word string. The word string is divided into the entity string and the non-entity string, the entity string and the non-entity string are subjected to targeted division identification, the background library is arranged to realize the incremental updating of corpuses and calculation indexes, and hot word extraction accuracy and efficiency can be improved. Meanwhile, the invention also provides a device for mining the Internet hot words. The device comprises a storage unit, an entity string identification unit, a non-entity string identification unit and a hot word extraction unit, wherein the hot word extraction unit finishes the incremental updating of the statistical index, the calculation of the popular degree of the word string and word string sorting output. The hot words can be orderly, efficiently and accurately extracted.