826results about How to "Easy to calculate" patented technology

The present invention relates to an accommodating intraocular lens, which is suitable for replacement of the natural crystalline lens of the eye within the capsular bag. The intraocular lens can include a retainer plate with an annular region surrounding a central opening, and an optical lens. The retainer plate acts as a foundation for the optical lens, as the retainer plate can be positioned near or at the posterior portion of the lens capsule. The optical lens can sit on the retainer plate, but is otherwise not attached to the retainer plate. The optical lens can overlap or fit within the central opening of the retainer plate. The retainer plate can include a lip portion integrally disposed on a region of the retainer plate, wherein the lip provides a surface for holding at least a portion of an intraocular lens.

The invention discloses an automatic depth-image registration method, which comprises the following steps: proceeding triangularization method for depth image; transmitting point cloud data into triangle grid data; finding the boundary point in the depth image according to the triangle grid data; calculating the character value of non-boundary vertex in the depth image; extracting character point set with projected surface character; finding the mating relationship as corresponding point among character points of two depth images; finding at least three couples of corresponding vertex; calculating the estimating value of movement of two depth images according to the corresponding point; adopting modified ICP algorism to optimize the result; finishing the precise registration of two depth images. The invention improves the speed and precision of registration, which reduces the calculating quantity with simple course.

A point of sale (POS) device may be configured to locate a payment system and transmit a payment authorization request from a remote location to a payment system, either directly, or via a payment system directory and/or a SSL Gateway. The invention also includes inserting third party account information into an encrypted portion of the payment request, so the payment request appears as a normal request to the issuing bank, but the third party account information may be used by the third party to bill the customer. The payment system directory is further configured to determine one or more payment processors to direct a payment authorization request, such that a single transaction may me allocated among multiple payment processors for authorization. Moreover, the payment system directory is able to format alternative payment methods into a format that is able to be processed over existing payment networks.

The invention discloses a method for fast constructing Hadoop cluster based on container cloud technology. The method comprises the following steps: (1) determining selected physical server number according to actual demand, regarding the entire selected physical server as a cluster, and assigning a master node of the cluster, and distributing actual deployment nodes, namely as the slave node; (2) installing a CentOS7 operation system for each physical server in the cluster; (3) installing and starting a container orchestration service Kubernetes and the network service Flannel on each master node of the cluster by use of a yuminstall command; (4) installing MySQL database, a mirror image warehouse service and management portal; (5) logging a management portal interface by use of an administrator account, establishing a user; and logging the management user by use of the established user, creating the cluster environment of the user, and constructing a Hadoop cluster.

A large-scale data processing system, a large-scale data processing method, and a non-transitory tangible machine-readable medium are provided. The large-scale data processing system comprises an interface and a processor. The interface accesses a multi-dimensional data model, wherein the multi-dimensional data model comprises a plurality of dimensions, the dimensions form a multi-dimensional space of measures, each dimension is a single space comprising a plurality of members with a common set of attributes, and each measure is a data element organized and accessible through the multi-dimensional space of the cross-product of all dimensions. The processor builds at least one Tree Object (TO), wherein the TO is derived by converting the multi-dimensional data model into an N-level tree data structure according to a level order of N attributes, each tree node in the TO meets all conditions of attributes for all ancestor nodes, and N is a positive integer.

Systems and methods for measuring intracranial pressure and brain compliance are provided. In one aspect, for example, a method for noninvasive measurement of brain compliance in a subject may include calculating a phase shift between an intracranial pulsatile perfusion flow measured from the subject and an extracranial pulsatile perfusion flow measured from the subject, and determining brain compliance of the subject from the phase shift between the intracranial pulsatile perfusion flow and an extracranial pulsatile perfusion flow. Though various methods of calculating phase shift are contemplated, in one aspect such a calculation may include calculating an intracranial frequency waveform corresponding to the intracranial pulsatile perfusion flow, calculating an extracranial frequency waveform corresponding to the extracranial pulsatile perfusion flow, and calculating a phase difference between the intracranial frequency waveform and the extracranial frequency waveform.

A method of compressed sensing imaging includes acquiring a sparse digital image b, said image comprising a plurality of intensities corresponding to an I-dimensional grid of points, initializing points (x^(k), y^(k)), wherein x^(k) is an element of a first expanded image x defined by b=RΦ⁻¹x, wherein R is a Fourier transform matrix, Φ is a wavelet transform matrix, y^(k) is a point in

∇_i is a forward finite difference operator for a i^th coordinate, and k is an iteration counter; calculating a first auxiliary variable s^(k) from

wherein τ₁,α are predetermined positive scalar constants, the sum is over all points n in x, and L* is an adjoint of operator L=(∇₁, . . . , ∇_I); calculating a second auxiliary variable t_n^(k) from y_n^(k)+τ₂L_nΦ⁻¹x^(k), wherein τ₂ is a predetermined positive scalar constant; updating x^(k+1) from sign(s^(k))max{0,|s^(k)|−τ₁β}, wherein β is a predetermined positive scalar constant; and updating y_n^(k+1) from

Noise correction values are generated through the calculation of pixel offset values and average pixel output values during a calibration procedure. For each read calibration row, an average pixel output value is determined for a plurality of pixel output values. An offset value for each of the plurality of pixel outputs is generated by finding the difference between each of the plurality of pixel outputs and the calculated average pixel output value. An offset value for an entire row of pixel outputs may also be calculated by finding the average pixel output value for a plurality of optically black pixels in the imager row. The average pixel output value for the optically black pixel values may be refined by discarding pixel values outside a threshold window and substituting the average pixel output value and calculate a new average pixel value.

A component analyzer includes a casing, a light source unit, a light incident unit guiding light from a test object into the casing, a tunable interference filter extracting light having a predetermined wavelength from the incident light, an imaging unit receiving the extracted light and taking a spectroscopic image, a control unit performing a component analysis of the test object based on the spectroscopic images, and a display displaying a component analysis result. The light incident unit, the imaging unit, and the control unit are provided within the casing. The tunable interference filter includes a fixed substrate having a fixed reflection film and a movable substrate provided to face the fixed substrate and having a movable reflection film opposed to the fixed reflection film across a gap between reflection films, and an electrostatic actuator changing the gap between reflection films.

A power-on reset for a transponder (102, 200, 400) capable of measuring one or more parameters (e.g., temperature, pressure) in an object (e.g., a tire, 104) and transmitting a data stream (FIGS. 3C, 4B) to an external reader/interrogator (106). The transponder typically operates in a passive mode, deriving its power (Vxx, Vcc, Vdd) from an RF interrogation signal received by an antenna system (210, 410), but can also operate in a battery-powered active mode. The transponder includes memory (238, 438) for storing measurements, calibration data, programmable trim settings (436b), transponder ID and the like. A power-on reset circuit (600) prevents operation of the transponder until it is stable, and starts transmission of the data stream at a first bit of the data stream, in order to ensure a first-pass transmission of a complete data stream. It also prevents modulation of the antenna system for data stream transmission if the power levels are too low for stable transponder operation during modulation.

The invention relates to a control method of an electronic expansion valve in an air conditioner system. The control method comprises: (1) detecting intermediate temperature T1 of an evaporator and outlet temperature T2 of the evaporator when the air conditioner system is in a refrigerating mode; and detecting intermediate temperature T4 of a condenser and outlet temperature T5 of the condenser when the air conditioner system is in a heating mode; (2) calculating degree of superheat delta T, wherein the degree of superheat delta T =T2-a*T1+b when the air conditioner system is in the refrigerating mode and the degree of superheat delta T=T5-c*T4+d when the air conditioner system is in a heating mode; (3) detecting outer temperature T3 of the actual environment of the air conditioner system and setting a target degree of superheat delta Tr according to T3; (4) comparing the degree of superheat delta T with the target degree of superheat delta Tr, and enabling the control system to output control signals according to comparison results to exert PID control on the electronic expansion valve. The control method of the electronic expansion valve is convenient and accurate in calculation of the degree of superheat, is low in cost, can meet requirements of one-driven-one constant-speed variable frequency air conditioner systems and is suitable for constant-speed variable frequency multi-split air conditioner systems.

Systems, methods and devices are provided for transporting, tracking and managing waste or recyclable materials, which may include one or more devices for transporting waste or recyclable material. The device may comprise a base; and a collapsible sleeve movable between an open state and a collapsed state, wherein the collapsible sleeve in the open state interfaces in a nesting manner with the base to form a bin for receiving and transporting waste material.

The invention discloses a detection device and a detection method for human motion information, belonging to the field of electronic information and mode identification. The detection device and the detection method of the human motion information are based on a single triaxial accelerometer and a Zigbee module; the detection method is based on a gait recognition technology and a statistical data modeling and can achieve detection of the human motion information by the triaxial accelerometer; the detection device comprises wireless sensing comprehensive modules arranged on a pair of shoes and an upper computer receiving module connected with a PC (Personal Computer) terminal; the device uses a trigger mode to perform wireless transmission for motion data in order to perform a human-computer interaction; due to a Zigbee low-power consumption design, a system can use batteries with smaller volume and capacity to reduce weight and volume of the whole system so as to be beneficial to be put at the bottom of the shoes; due to a voltage-stabilizing power supply design, an error of a quantized acceleration magnitude of an accelerometer after a working voltage drops can be avoided when the batteries are powered.

A web page content adaptation process and system which prioritizes requested web page content for adaptation in accordance with a user's level of interest in the web page content is described. The requested web page content is grouped to form multiple content clusters and a priority value is assigned to each of the content clusters based on the user's browser history. The requested web page content is then adapted in order of the priority value assigned to each of the content clusters to provide a useful version of the original web page content.

The invention discloses a movement classification-based pedestrian self-positioning method. The method comprises the following steps: 1, classifying data output by a wearable IMU on a pedestrian, and recognizing IMU placing positions of feet, a waist and a chest in an adaptive manner; 2, determining thresholds for the movement classification division through analyzing data output by the wearable IMU to classify movement such as staying, walking and running; 3, performing recognition capture at transient moments in the movement state of the pedestrian; 4, acquiring the pedestrian attitude, speed, position information through the navigation solution of strap-down inertial navigation; 5, realizing the adaptive filtering design combined with the IMU position reorganization, the movement classification result and the transient moment detection result; 6, updating a navigation result in the pedestrian movement process. Through the adoption of the method, the movement data classification problem is solved; through the movement classification, different movement types can correspond to different size-length models, so that the positioning accuracy is improved.

The invention relates to a feedforward torque compensating method used for an industrial robot. The method includes the steps that (1) a buffer queue is established according to an interpolation point queue obtained after all motors are subjected to interpolation calculation, and the central difference method is adopted for obtaining the theoretical joint angular velocities and joint angular accelerations corresponding to all the motors of interpolation points; (2) the lagrange equation is used for obtaining the feedforward compensating torques of all joints during all interpolation periods according to the expected rotating angles, angular velocities and angular accelerations of all the joints during the interpolation periods and a kinetic model of the robot; and (3) the feedforward compensating torque tau feedforward is added into the electric current loop input position of the motor bottom layer to serve as a PD feedback torque tau feedback supplement. By means of the feedforward torque compensating method provided by the invention, calculation is easy and convenient, and after torque compensating is completed, trajectory tracking errors of the robot can be reduced, and positional accuracy of the robot can be improved.

The invention discloses a micro-expression-based risk identification method and device, equipment and a medium. The micro-expression-based risk identification method comprises: to-be-identified videodata are obtained, wherein the to-be-identified video data include at least two frames of to-be-identified video images; the at least two frames of to-be-identified video images are classified into abasic problem feature set and a sensitive question feature set; each frame of to-be-identified video image in the basic problem feature set is inputted into at least two pre-trained micro-expression recognition models for identification and corresponding standard expression recognition results are obtained; each frame of to-be-identified video image in the sensitive question feature set is inputted into at least two pre-trained micro-expression recognition models for identification and thus corresponding testing expression recognition results are obtained; and on the basis of the standard expression recognition results and the testing expression recognition results, a risk identification result is obtained. With the micro-expression-based risk identification method disclosed by the invention, problems of low result trustiness and poor auxiliary effect of the current risk control result can be solved.

The invention provides a road trip time estimating method and a road trip time estimating system, wherein the method comprises the following steps that the vehicle passing information in the set time is collected at an upstream tollgate and a downstream tollgate, in addition, the license plate matching is carried out, and the vehicle trip time information set is obtained; the vehicle trip time information set is subjected to data preprocessing; the preprocessed time information set is subjected to distribution test for judging the distribution mode; and the road trip time estimating value is calculated according to the judged distribution mode. The method and the system have the advantages that the intelligent degree is high, the operation is simple and convenient, and the objective degree and the accuracy of calculation results are high.

A light emission section includes light generators which are operated on the basis of drive signals from a controller so as to emit near infrared interferable light beams having different specific wavelengths to a light interference section. The light interference section includes a beam splitter having a low-reflection region. The beam splitter allows a most portion of the near infrared interferable light beams to propagate toward an object to be examined, and reflects a portion of the near infrared interferable light beams to a movable mirror. The beam splitter causes interference between measurement light reflected by the object and reference light reflected by the movable mirror, and the resultant interference light propagates to a light detection section. The light detection section receives the interference light and calculates predetermined information regarding the object by making use of the quantity distribution of the interference light. A display section displays the calculated information.

The present invention discloses an unmanned aerial vehicle aerial image defogging algorithm based on a dark channel. The algorithm comprises the steps of: obtaining a dark channel image according to acolor foggy image, obtaining a global atmospheric light composition A according to the dark channel image, obtaining a coarse-transmissivity graph according to the dark channel image, performing downsampling of the coarse-transmissivity graph, performing guidance filtering, performing upsampling to obtain a fine-transmissivity graph, obtaining an initial defogging image according to the fine-transmissivity graph and the global atmospheric light composition A, and employing restriction contrast adaptive histogram equalization to perform local contrast enhancement of the initial defogging imageto solve the problems that the image is dark and highlights the local information of the original image after defogging of the dark channel and to be used for later image processing work. The unmanned aerial vehicle aerial image defogging algorithm is especially suitable for defogging operation of high-resolution foggy images shot by the unmanned aerial vehicle, can obtain more image detail points of the unmanned aerial vehicle while rapidly removing the fog images of the images of the unmanned aerial vehicle, can simplify computing and has good robustness.

Aiming at the condition that primary line current and voltage are not easily monitored by a sensor due to high voltage and large current when a high voltage circuit breaker works online, the invention provides an online monitoring method and an online monitoring device of a high voltage vacuum circuit breaker. The method comprises the steps of: using a displacement sensor directly connected with a moving contact of the high voltage circuit breaker to collect a stroke signal of the moving contact; calculating characteristic points on a stroke curve through a series of filtering and correction; and analyzing the characteristic points to calculate relevant parameters so as to judge the work condition of the circuit breaker online. The online monitoring method and device provided by the invention effectively monitor the high voltage circuit breaker online and can resist the monitoring environment of high voltage and large current. As the displacement sensor directly connected with the moving contact of the circuit breaker is just used as a unique signal collecting device in the invention, the problem of difficulty in implementation and high cost caused by the fact that high voltage resisting voltage or current sensors are needed to be used on a primary side line is solved.

The invention belongs to hydraulics and river dynamics, and relates to a method for calculating roughness parameters for hydraulic calculation. The roughness is the major parameter for hydraulic calculation. The value of the parameter has a great influence on the hydraulic calculation result. According to the physical significance of on-way resistance and local resistance, the integrated roughness determination method comprehensively reflects the collaborative influence of the on-way resistance and the local resistance. The integrated roughness is obtained by calculating the roughness value reflecting shearing stress inside a reach and a local energy loss coefficient, and the integrated roughness calculation formula specified in the specification is obtained. According to the method, reach one-dimensional water flow numerical simulation calculation is facilitated, and the new method is provided for determining the reach roughness parameter lacking observation data. The method is feasible compared with a calculation result of a common water surface profile calculation method based on the Bernoulli equation. The method can calculate the integrated roughness of the specified reach, can also be applied to the roughness parameter value of unstable river hydrodynamic numerical simulation and has the quite important practical application significance.

The present invention relates to a system and methodology for automatic clusterization and display of data items in a local or remote database system. Such clusterization can be based on properties associated with the data items such as a type, location, people, date, time, user-defined, and so forth, wherein an initial property may be employed to form a first level of clusterization and a subsequent property may be automatically determined to form an optimized clusterization from which to find and retrieve desired information. A computerized interface for organizing and retrieving data is provided. The interface includes a property analyzer to determine an item distribution for at least two cluster properties and an organizer that forms new clusters based in part on the item distribution.

The invention discloses an alternated plate feeding device, which comprises a conveyor belt, at least two plate clamping mechanisms and a slide rail, wherein the conveyor belt comprises a plurality of working sections arranged in parallel, and at least two of all the working sections have opposite conveying directions; the plate clamping mechanisms are fixedly connected to different working sections; and the slide rail is used for bearing reciprocating motion of the plate clamping mechanisms. The alternated plate feeding device does not slip during clamping; and the feeding distance can be conveniently calculated through the conveying distance of the conveyor belt, so that the feeding precision is greatly promoted. In the optimal technical scheme, a first plate clamping mechanism and a second plate clamping mechanism are adopted, so that idle travel is avoided in the feeding process, uninterrupted feeding is realized, and the feeding efficiency is greatly improved; and only one clamping part is required in one feeding stroke, so that the surface of a material is scratched little. The device has the advantages of convenience in control, high feeding precision, little surface scratch, high feeding efficiency and the like.

The invention discloses a dynamic ship monitoring information system, in which an AIS transmitter is arranged on a ship, an AIS receiver is connected with a monitoring server which is connected with a client terminal by a communication network which is internally provided with an operation processor and a memory which is used for memorizing the AIS ship information and electronic chart data. The realization method of the invention comprises the steps as follows: a matching data module is established; the ship information is called out of the AIS data module; whether the ship motion state and a triggering rule are matched or not is compared; the proportion of the chart is calculated; an electronic chart data module is called according to the proportion and the position so as to generate a local electronic chart background module; ship drawings are laminated on the local electronic chart background module so as to obtain a local ship chart; a data module to be informed is turned to; a sending path is selected and the local ship chart is sent to the client terminal. The dynamic ship monitoring system can conveniently calculate the local ship electronic chart, to which the ship the client pays attention, and transmit the local ship electronic chart to the client terminal, thus bringing intuitionistic dynamic ship information for the clients.

The invention discloses a water level collecting method based on image identification. The water level collecting method is characterized in that an image identification method is adopted for identifying a water surface in a photograph and a specific reference point in the photograph and combining a center point of the photograph for calculating the water level height of the water surface. The forming of the photograph is an optical imaging process, so that each point in the photograph is corresponding to an object one by one. According to the water level collecting method, a projection relationship of a camera, the photograph and the object is utilized to establish a projection triangle, so that the water level height of the water surface is calculated according to the information, namely, the height of the reference point, the horizontal distance between the reference point and the camera, the height of the camera, and the like. According to the water level collecting method, the level of river water in a river channel is calculated by utilizing one photograph, so that the calculation for the water level of the river channel is more convenient and the construction cost of a gauging station and a hydrometric station can be effectively reduced.

The invention is suitable for the digital image processing field and provides a fish-eye lens correction method and device and a portable terminal. The method comprises the following steps: carrying out distortion correction on a fisheye image through an equidistant projection model to obtain an initial correction image, the image content of which is a calibration board; obtaining all angle pointsof the calibration board from the initial correction image, re-projecting angle point coordinates to the fisheye image to obtain rough angle point coordinate values of the calibration board in the fisheye image, and serving the angle points as feature points in the fisheye image; and carrying out iteration on the feature points in the fisheye image to obtain different parameter values within a preset parameter range, carrying out correction on the fish-eye lens through the equidistant projection model, and serving the parameter value obtained when the deviation amount is minimum as an accurate correction value of the fish-eye lens. The fish-eye lens correction method reduces preparation workload in the early stage, and is simple in operation process; a camera does not need to change position and angle; and the fish-eye lens correction method is wide in application range, does not need to set a lot of parameters, is simple to calculate, and meanwhile, realizes an accurate fisheye correction effect.

The invention discloses a curved road safe speed calculating method and caution system based on vehicle infrastructure cooperation. The method includes the following steps of calculating the sideslip critical speed of a vehicle; calculating the rollover critical speed of the vehicle; comparing the small values of the two critical speeds and determining the safe speed when the vehicle runs into the curve; and calculating the safe vehicle speed when the vehicle runs into the curve after considering the behavior characteristics of a driver. The invention provides a method for accurately calculating the safe vehicle speed when the vehicle runs into the curve on the basis of fully considering the influences of people, vehicles and roads. Through the comprehensive considering of the vehicle motion characteristics and driver behavior characteristics, the safe vehicle speed of the vehicle at the curved road is analyzed by means of a vehicle dynamics theory. The method has the advantages of simple calculation, fast operation speed, and high reliability, and provides the theoretical method support for the design and development of a curved road safe driving caution system.

The invention relates to a method and a device for stabilizing a car-trailer combination, including a towing vehicle and a trailer moved by the towing vehicle, wherein the towing vehicle is monitored in terms of rolling motions and measures that stabilize driving are taken upon the detection of an actual or expected unstable driving performance of the towing vehicle or the car-trailer combination. In order to be able to perform, in a timely manner, an intervention on the towing vehicle that stabilizes driving, the invention provides that the measures that stabilize driving are controlled in dependence on the yaw acceleration.

A demand control system 1 according to the present invention includes a CPU 41 and a power database 45. The power database 45 stores actual data in a state where the actual data are classified according to environmental conditions, the actual data being based on a consumption integration value of power actually consumed by the power consuming device. The CPU 41 calculates a predicted integration value of power predicted to be consumed in the demand time period, by using contents stored in the power database 45 at a start or before the start of the current demand time period. Further, the CPU 41 lowers a power target value when the calculated predicted integration value falls below the power target value being a target value of the power to be consumed in the demand time period.