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541results about How to "Reduce collection costs" patented technology

Identity verifying method with video human face and digital lip movement password combined

The invention relates to the technical field of video image processing and mode recognizing, and provides an identity verifying method with a video human face and a digital lip movement password combined. The identity verifying method mainly comprises the following steps that firstly, human face area detecting and lip area positioning preprocessing are carried out; secondly, human face features are extracted through Gabor filtering, and video human face identity verifying is carried out; thirdly, lip area features are extracted, and overall lip feature modeling and lip movement identity verifying are carried out through a hidden markov model; fourthly, password subunit dividing is carried out on the digital lip movement password, and password content recognizing and matching are carried out. According to the method, identity verifying is carried out according to the biological features and the behavior features of people, video human face information, lip movement behavior features and specific password content information are required to be included while identity recognizing and matching are conducted, multiple protection roles are played in identity verifying, stability and safety of the system can be improved, and the method has good application prospects.
Owner:HUAQIAO UNIVERSITY

Method for re-circulating combustion of flue gas of pulverized coal fired boiler

The invention provides a method for re-circulating combustion of flue gas of a pulverized coal fired boiler, belongs to a method for circulating combustion of oxygen gas (O2) and carbon dioxide (CO2) of pulverized coal, and aims to solve the problems of low heat efficiency and poor burn-out property existing in the conventional combustion method. The method comprises the steps of: 1,igniting and combusting: conveying the pulverized coal to a furnace hearth by using the circulation flue gas, and simultaneously conveying O2 to the furnace hearth for ignition; 2, circulating the flue gas: dividing the high-temperature flue gas generated by combustion into two parts, and performing cooling, dust removal and desulfurization compression on the first part to obtain liquid CO2; dividing the second part into two paths, conveying the first path to an entrance of the furnace hearth by using a high-temperature circulation fan, and mixing the first path of the flue gas and O2; and performing cooling, dust removal and desulfurization on the second path, and conveying the second path carrying the pulverized coal to the furnace hearth by using a cold circulation fan. The method has the advantages of adjusting the steam temperature of the boiler by using the high-temperature flue gas, enhancing convective heat transfer, increasing the steam temperature of the boiler, improving the heat efficiency of the boiler and the denitration rate, increasing the CO2 content after the high-temperature flue gas is cooled, reducing emission load of NOx, lowering CO2 capturing and collecting cost, and meeting the national energy conservation and environmental protection standard.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for estimating city expressway traffic states based on mobile detection of smartphones

The invention discloses a method for estimating city expressway traffic states based on mobile detection of smartphones, wherein a city expressway cell transmission model is built firstly, a observing network is built by adopting a smartphone to rapidly detect parameters, then a state space model based on a lighthill-whitham-richards (LWR) traffic flow model is designed, a traffic state and a boundary flux are synchronously estimated by utilizing three-step type recursive filters algorithm, then are coalesced with upstream and downstream subsection boundary flux by adopting a weighted average algorithm, and traffic parameter estimation is upgraded, thereby achieving real-time distributed estimation of city expressway network traffic state. The method for estimating the city expressway traffic states based on the mobile detection of the smartphones can collect average speed information of vehicles on any time and space positions of a loop, enables traffic estimation not to be restrained by the position of a detector, can achieve synchronization estimation of traffic density and boundary flux by designing a state-space model and a three-step recursive filter, and achieves the problem of large range expressway network traffic estimation by being coalesced with subsection boundary flux, reduces model order, and improves efficiency of algorithm.
Owner:中国冶金科技成果转化有限公司

Generating method of face image and generating device of face image

The invention discloses a generating method and device of a face image. The method comprises: obtaining an RGB three-channel color image of a real face, and generating a face position rectangle frameand facial feature point coordinates according to the same; obtaining PCA (Principal Component Analysis) appearance parameters and PCA expression parameters of a 3DMM (3-Dimensional Morphable Model) face model and an affine transformation matrix, of projecting the three-dimentional face to the RGB three-channel color image according to the face position rectangle frame and facial feature point coordinates to reconstruct a three-dimensional model of the face; generating color information, which corresponds to each sampling point in a three-dimentional lattice which is of the face and is obtained by three-dimentional reconstruction, according to the RGB three-channel color image and the reconstructed three-dimentional model of the face; generating a four-channel RGBA face image and face positioning point coordinates on the basis of the color information, the PCA appearance parameters, the PCA expression parameters, light ray material and face angle information; and generating the face image according to a pre-collected general scene picture labeled with a face position and the four-channel RGBA face image. Existing color images can be converted into near-infrared (NIR) images, and collection costs of the near-infrared images are reduced.
Owner:BEIJING HUAJIE IMI TECH CO LTD

Rehabilitation training system based on cloud computing

The invention discloses a rehabilitation training system based on cloud computing. The rehabilitation training system based on the cloud computing comprises a data acquisition module, an evaluation analysis module, a network communication module, a simulation training model, a database module, a system use role management module and an information management system module, wherein the data acquisition module uploads acquired data to a local PC (personal computer) through the network communication module, and then is connected with a server on the Internet. The rehabilitation training system based on the cloud computing has the advantage of using powerful knowledge resources, computers, networks and modern sensing systems in a hospital, remotely acquiring, processing and transmitting training data in real time, enabling a patient to stay at home, perform rehabilitation training whenever and interact with a doctor who sets an example for the patient and guides the patient in the training whenever, greatly facilitating the patient, not only simulating interesting training, but also guiding and controlling the training process and the training scheme according to physiologic feedback information, and significantly improving effects of the rehabilitation training.
Owner:陕西鑫带路电子科技有限公司

Electrical sounding method for whole-region couple source frequency domain

The invention relates to an electrical sounding method for a whole-region couple source frequency domain, which is used for measuring horizontal electric field components Ey. The electrical sounding method comprises the following steps: (1) arranging a transmission power supply and a power supply dipole; (2) selecting measurement frequency, wherein the sector observation range is as follows: an included angle with a dipole moment direction is 5-85 degrees, and selecting a transmitting and receiving distance dL; arranging a measuring line and a measuring point; (3) arranging and connecting a measurement electrode and a receiver; synchronously measuring the components of the horizontal electric field (Ey) vertical to the dipole moment via multiple paths, and simultaneously recording the measuring point position (relative to the coordinate of the center of the dipole); and (4) storing data and calculating apparent resistivity according to a corresponding formula. The invention is suitable for observing underground electrical distribution in the whole region. Because the invention only needs to measure electric field data on one direction, the invention has wide observation range, high efficiency, low cost and simple equipment, and observed data is slightly affected by static effect. The invention can be used for finding out geologic structure and mineral product distribution or solves the other problems of engineering, hydrology and environment geology.
Owner:汤井田 +2

Desert synchronization photovoltaic power generating system with solar azimuth tracking device and tracking method thereof

The invention discloses a synchronization photovoltaic power generating system with a solar azimuth tracking device and a tracking method thereof. The system comprises a local range ZigBee wireless network, a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) 3G public network and a remote monitoring center. The ZigBee wireless network comprises one or more ZigBee nodes of a photovoltaic power generating subsystem and a ZigBee coordinator of a photovoltaic power generating main system, and the ZigBee coordinator is also used as a ZigBee/TD-SCDMA gateway; working condition data of a power generating system are classified according to the operation and maintenance requirements or uploaded through a TD-SCDMA 3G in real time or temporarily stored in the coordinator to be acquired in an off-line way by an inspector during the inspection; the remote monitoring center sets sunny, cloudy and rainy working modes of the tracking device and the rough and fine tracking accuracy in the sunny mode; astronomy tracking and tracking on generated energy of the photovoltaic power generating system are adopted in the solar azimuth tracking device; and a stepping motor and a step subdividing technology are adopted in the mechanical drive of the solar azimuth tracking device. The tracking device is merged into the photovoltaic power generating system, therefore, the reliability and the tracking accuracy of the system are improved and the operation and maintenance cost is lowered.
Owner:ZHEJIANG UNIV

Immovable string hydraulic jetting technology for fracture acidizing and string for immovable string hydraulic jetting technology for fracture acidizing

The invention discloses an immovable string hydraulic jetting technology for fracture acidizing and a string for the immovable string hydraulic jetting technology for fracture acidizing, belonging to the field of petroleum and natural gas. A multi-stage jet serial connecting method is adopted by the embodiment of the invention, sugarcoated haw string type pipes are strung in a well, and when multilayer fracturing is implemented, a method of throwing balls to transfer layers is adopted to implement multilayer fracturing from bottom to top to realize immovable string multilayer fracturing. Each jet corresponds to one production layer. The upper end and the lower end of each jet are respectively connected with two centralizers. By adopting the technology, the combined operation of jetting and fracture acidizing can be realized without lifting up the string. Moreover, the quantity of the jets can be determined according to well situations. The technology provided by the invention has the advantages that the construction operation processes can be effectively reduced, the working intensity and the operating risk of construction personnel and the cost can be reduced, the oil-gas recovery efficiency and the recovery quantity can be greatly improved, and the recovery cost is reduced.
Owner:PETROCHINA CO LTD

Speech collection method and device, computer equipment, and storage medium

The invention discloses a speech collection method and device, computer equipment, and a storage medium. The method comprises the steps: selecting corresponding initial linguistic data when receivinga linguistic data obtaining request sent by a r through an application account of a communication application platform, and obtaining the identity label information of the user; calling a recording function of the application account of the communication application platform for recording after receiving a recording start request, and to obtain a record file; calling an offline voice recognition function of the application account of the communication application platform to convert the record file into a target text; carrying out the matching of the target text with the initial linguistic data through a text matching algorithm to obtain the text similarity; storing the record file, the identity label information and the mapping relation between the record file and the identity label information into a database if the text similarity is greater than or equal to a preset similarity threshold value, thereby achieving a purpose of quickly collecting the speech data through employing the application account of the communication application platform, and improving the collection efficiency of the speech data.
Owner:PING AN TECH (SHENZHEN) CO LTD

Discount coupon push method, system, storage medium, electronic device and stream splitting method

The invention provides a discount coupon push method, a discount coupon push system, a storage medium, an electronic device and a stream splitting method. The discount coupon push method includes the following steps that: user streams are randomly split into a plurality of groups, discount coupons of different denominations are pushed to the groups, and the order placing data of the groups are put into statistics; experimental labels are set according to historical order data, wherein each experimental label contains a plurality of mutually-exclusive label items; one or more label items are configured for each user stream in a matched manner; user streams are extracted according to the label items of a single experimental label or the label item combinations of a plurality of experimental labels so as to form different experiment groups; user streams in each experiment group are split into a plurality of sub experiment groups according to the discount coupons of different denominations, and the order placing ratios of the user streams of the sub experiment groups are put into statistics; and discount coupons of denominations corresponding to a sub experiment group with the highest order placing ratio are pushed to the user streams in the experiment groups. With the discount coupon push method, the discount coupon push system, the storage medium, the electronic device and the stream splitting method of the invention adopted, stream splitting experiment efficiency can be improved, an experiment period can be shortened, and experiment costs can be reduced greatly.
Owner:CTRIP COMP TECH SHANGHAI

Mud snail collecting device

The invention discloses a mud snail collecting device. The mud snail collecting device comprises a rolling collecting device, a conveying device, spiral cleaning device and a storage box which are sequentially disposed from front to rear, wherein the rolling collecting device comprises a rolling rod and a plurality of mesh collecting plates, the mesh collecting plates are parallel with the rolling rod and distributed on the periphery of the rolling rod, and the mesh collecting plates perform circling motion by using the rolling rod as the center; the conveying device comprises a box with a front opening and a top opening, an upper oblique conveying belt disposed in the box, and a drive and a driven rod which are respectively disposed at the upper and lower ends of the conveying belt, and a discharging oblique plate is disposed on the box and located on the rear side of the conveying belt; the spiral cleaning device comprises a vehicle body fixedly connected with the rear side of the box, a hollow mesh rod obliquely and upwardly disposed on the vehicle body, a small drive motor disposed at the top of the hollow mesh rod, and a spiral feeding rod which is disposed inside the hollow mesh rod and connected with the output end of the small drive motor. The mud snail collecting device has the advantages that the device is simple in structure, low in collecting cost, high in efficiency and low in collecting missing rate.
Owner:GUIPING PRODIVITY PROMOTION CENT

Automatic shellfish collection device

The invention discloses an automatic shellfish collection device. The automatic shellfish collection device comprises a shoveling device, a diagonal conveying device and a filtering and collecting device. The shoveling device comprises an arc-shaped shovel blade with a low front side and a high rear side, a filtering plate fixedly connected with the rear side of the arc-shaped shovel blade and a plurality of shovel blade connection rods, wherein the front ends of the shovel blade connection rods are fixedly connected with the arc-shaped shovel blade. The diagonal conveying device comprises an upper diagonal driving belt, an upper rolling rod, a lower rolling rod and a an upper stop plate, the upper diagonal driving belt is arranged in rear of the filtering plate, the upper rolling rod and the lower rolling rod are arranged at the upper end and the lower end of the upper diagonal driving belt respectively and drive the upper diagonal driving belt to rotate, and the upper stop plate is arranged above the upper diagonal driving belt. The rear ends of the shovel blade connection rods are fixedly connected with the top of the upper stop plate. The filtering and collecting device comprises a filter screen with a high front side and a low rear side and a V-shaped net cage arranged in rear of the filter screen, and the filter screen is arranged in rear of the upper diagonal driving belt. The automatic shellfish collection device has the advantages of simple structure, low collection cost, high efficiency and low missing rate.
Owner:GUIPING PRODIVITY PROMOTION CENT
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