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147results about How to "Reduce rejection rate" patented technology
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Speech recognition model establishing method based on bottleneck characteristics and multi-scale and multi-headed attention mechanism
The invention provides a speech recognition model establishing method based on bottleneck characteristics and a multi-scale and multi-headed attention mechanism, and belongs to the field of model establishing methods. A traditional attention model has the problems of poor recognition performance and simplex attention scale. According to the speech recognition model establishing method based on thebottleneck characteristics and the multi-scale and multi-headed attention mechanism, the bottleneck characteristics are extracted through a deep belief network to serve as a front end, the robustnessof a model can be improved, a multi-scale and multi-headed attention model constituted by convolution kernels of different scales is adopted as a rear end, model establishing is conducted on speech elements at the levels of phoneme, syllable, word and the like, and recurrent neural network hidden layer state sequences and output sequences are calculated one by one; and elements of the positions where the output sequences are located are calculated through decoding networks corresponding to attention networks of all heads, and finally all the output sequences are integrated into a new output sequence. The recognition effect of a speech recognition system can be improved.
Owner:HARBIN INST OF TECH
Soundwave discriminating unlocking module and unlocking method for interactive device at gate of building
InactiveCN1941080AImprove securityReduce false recognition rateElectric permutation locksSpeech recognitionComputer moduleSpeech sound
This invention is a voice identification lock module and its working method. The module is composed by a keyboard, voice collecting module, voice processing module, switch status output module, voice notice module and RS232 communication port. The lock key is based on identification of individual voice character. Error rate is less than 1%.
Owner:上海优浪信息科技有限公司
Voice authentication system
InactiveUS20060020460A1High precisionReduce rejection rateSpeech recognitionAuthentication systemInformation extraction
A voice authentication system includes: a standard template storage part 17 in which a standard template that is generated from a registered voice of an authorized user and featured with a voice characteristic of the registered voice is stored preliminarily in a state of being associated with a personal ID of the authorized user; an identifier input part 15 that allows a user who intends to be authenticated to input a personal ID; a voice input part 11 that allows the user to input a voice; a standard template / registered voice selection part 16 that selects a standard template and a registered voice corresponding to the inputted identifier; a determination part 14 that refers to the selected standard template and determines whether or not the inputted voice is a voice of the authorized user him / herself and whether or not presentation-use information is to be outputted by referring to a predetermined determination reference; a presentation-use information extraction part 19 that extracts information regarding the registered voice of the authorized user corresponding to the inputted identifier; and a presentation-use information output part 18 that presents the presentation-use information to the user in the case where it is determined by the determination part that the presentation-use information is to be outputted to the user.
Owner:FUJITSU LTD
Method for strengthening X2 interface resource state signaling
InactiveCN101610537AAchieve interactionReduce complexityAssess restrictionResource informationHoneycomb
The invention discloses method for strengthening X2 interface resource state signaling, mainly solving the problem that resource state signaling of X2 interface interaction cannot indicate residual resource state information of a district in an LTE-Advanced system. The invention adopts the following strengthening processes: firstly, a source base station sends a resource state request message to an adjacent base station through an X2 interface for requesting the adjacent base station to periodically report a residual PRB resource state, and the adjacent base station feeds back a response message according to measuring capability per se; secondly, the adjacent base station periodically reports the residual PRB resource state to the source base station; and thirdly, the source base station sends the resource state request message and sets register request information to be 'stopping', and the adjacent base station feeds back the response message and ends work of report and measurement after receiving the message. The invention can realize interaction of the residual resource information of the district with low complexity without increasing an additional X2 interface application layer protocol progress. The residual resource information is a quantitative value, is accurate and reliable, and can be used for a district selection process for switching among honeycomb districts by skipping a district.
Owner:XIDIAN UNIV
Fingerprint verification system
ActiveCN103093209AOvercome limitationsReduce false recognition rateCharacter and pattern recognitionComputer hardwareFeature extraction
The invention relates to a fingerprint verification system which comprises a fingerprint collection device, a fingerprint feature extraction device, a storage unit, a fingerprint comparison device, a control device and a power source, wherein the storage unit is used for storing a fingerprint template, the fingerprint comparison device is used for comparing a fingerprint feature extracted by the fingerprint feature extraction device and a fingerprint template stored in the storage unit, and the control device is used for controlling the fingerprint comparison device and outputting a fingerprint verification result. The fingerprint verification system further comprises a comparison threshold value adjustment device which is connected with the fingerprint comparison device and the control device and is used for adjusting a comparison threshold value of a fingerprint. According to the fingerprint verification system, due to the fact that the comparison threshold value of the fingerprint is adjusted by the comparison threshold value adjustment device, limitation of a changeless comparison threshold value in fingerprint verification is avoided, a false accept rate and a false reject rate are effectively reduced, and safety of identity authentication and efficiency of identity recognition are improved.
Owner:SHENZHEN ARATEK BIOMETRICS TECH CO LTD
Fingerprint information dynamic update method and fingerprint identification device
ActiveCN105868679ARealize dynamic updateImplement updateMatching and classificationPattern recognitionIdentification device
The present invention discloses a fingerprint information dynamic update method and a fingerprint identification device. The method comprises the steps: collecting fingerprint information, and performing fingerprint identification according to the collected fingerprint information and a fingerprint template database registered in advance; determining whether the fingerprint identification template database is saturated or not after the fingerprint identification is successful; if the fingerprint identification template database is not saturated, and when the collection fingerprint information satisfies a first update condition, adding the collected fingerprint information into the fingerprint template database; and if the fingerprint identification template database has been saturated, and when the collected fingerprint information satisfies a second update condition, selecting the object fingerprint information from the fingerprint template database, and replacing the collected fingerprint information with the object fingerprint information. Therefore, the dynamic update of the fingerprint information in the fingerprint template database is realized in the usage process of the fingerprint identification device, so that the accuracy of the fingerprint identification is enhanced, the misjudgment rate of the fingerprint identification device is reduced in different usage environments and the user's use experience is improved.
Owner:SHENZHEN GOODIX TECH CO LTD
Voice authentication system
InactiveUS7447632B2High precisionReduce rejection rateSpeech recognitionComputer hardwareSpeech verification
Owner:FUJITSU LTD
Resource utilization optimization method for transfer network
InactiveCN1688133AAchieve mutual coordinationMeet business needsData switching networksBandwidth utilizationTransmission delay
This invention discloses a method for laminating transmission nets, selecting joint routes and jointly optimizing multi-layer resource including the following steps: 1, expressing layering to the network, 2, jointly selecting routes according to the parameters of service request bandwidth and grade, link bandwidth usability, adjacent inter layer link transmission rate and hops, 3, calling the MRIS method based on the result of jointly selecting routes, 4, periodically calling the MRJS method to optimize the resource configuration, 5, carrying out the algorithm operation.
Owner:XIDIAN UNIV +1
Human face identification method based on human face characteristic data mining and device
InactiveCN103778409AReduce rejection rateIncrease the amount of feature informationCharacter and pattern recognitionPattern recognitionEngineering
The invention relates to a human face identification method based on a human face characteristic data mining technology and a device. Through the special system structure design of a human face registration module, a human face identification module and a system updating module and a specific algorithm, effective intra-class registration human face characteristic information volume is increased, thus the method and the device adapt to the change of human face pose and facial expression. Through automatic system updating, identification rejection rate caused by the fact that an environment and a human face change with time is reduced. For the characteristic differences between types of intra-class human faces, the respective classification threshold is mined. The delay rate caused by the fact that the same classification threshold is used and intra-class human face differences are ignored and the identification rejection rate are reduced. The identification efficiency of a system is improved.
Owner:SHENZHEN YUANXUAN TECH DEV
Carrier channel selection method in MF-TDMA satellite system
InactiveCN101345574AAvoid wastingReduce rejection rateRadio/inductive link selection arrangementsRadio transmissionStart timeTelecommunications
The invention discloses a carrier channel selection method for MF-TDMA satellite system. there are two conditions for channel selection and allocation in the method by judging if terminal A is first time for starting a time slot resource application. Condition 1: if terminal A is first time for starting time slot resource application and has not prearrange carrier channel, then finding the smallest carrier channel for allocation by finding idle carrier channel and computing present carrier channel load function; condition 2: if terminal A is not first time for starting time slot resource application and a foregoing connection is allocated to predetermined carrier channel, then predetermined carrier channel is target carrier channel for allocation, or all connection of terminal A is tuned to other usable carrier channel for allocation. The inventive method makes user carrier channel tunable, solves time slot resource waste problem arising from uneven load of carrier channel for multi-user multi-connection and promotes time slot resource utilization.
Owner:BEIHANG UNIV
Electric fuse ignition device, electric detonator comprising electric fuse ignition device, electronic detonator comprising electric fuse ignition device, and manufacturing methods for electric detonator and electronic detonator
InactiveCN102878877AEasy to manufactureSimple preparation processBlastingAmmunition fuzesElectrical resistance and conductanceElectricity
The invention provides an electric fuse ignition device. The electric fuse ignition device comprises a film resistor and an ignition explosive head wrapping the film resistor, wherein a power supply device can supply energy to the film resistor so that the film resistor generates enough joule heat and heats the ignition explosive head to a set temperature; and therefore, the ignition explosive head is lighted. The invention also provides an electric detonator comprising the electric fuse ignition device and an electronic detonator comprising the electric fuse ignition device. The invention also provides manufacturing methods for the electric detonator and the electronic detonator. According to the electric fuse ignition device provided by the invention, the film resistor is easy to manufacture, low in cost, high in yield, not easy to break and high in resistance precision, so that the electric detonator comprising the electric fuse ignition device and the electronic detonator comprising the electric fuse ignition device also have the advantages that the manufacturing is simple, the cost is low, the yield is high, the misfire rate is low, and the explosion precision is high. The manufacturing methods for the electric detonator and the electronic detonator are high in assembly automation degree, precise, reliable, high in yield and low in cost.
Owner:XINJIANG CHUANGANDA ELECTRONICS TECH DEV
Method for reducing false reject rate of fingerprint comparison
ActiveCN102254167AReduce rejection rateEasy to useCharacter and pattern recognitionPattern recognitionEngineering
The invention relates to a method for reducing the false reject rate of fingerprint comparison. The method comprises the following steps of: extracting fingerprint characteristics by a fingerprint sensor; quickly searching in a plurality of templates, and comparing the templates with the existing template to obtain the highest comparison score; and judging whether comparison passes according to acomparison passing rule, and replacing the templates or not according to an auxiliary template replacement rule. The method has the advantages that: an auxiliary template is added and dynamically updated in an application process, so the capacity for environmental adaptation of the sensor is greatly improved, anti-aging capacity is improved, the range of a comparison object is expanded, and the false reject rate is effectively reduced; the fingerprint characteristics in a fingerprint comparison auxiliary threshold interval are required to be compared with fingerprint templates one by one; andwhen more than two characteristic comparison scores are in the fingerprint comparison auxiliary threshold interval, comparison is determined to pass, so the false reject rate of the fingerprint comparison is effectively reduced under the condition that no false accepting is guaranteed.
Owner:HANGZHOU SYNOCHIP DATA SECURITY TECH CO LTD
Method for automatically changing slag line of tundish submersed nozzle for ultra-thick plate blank casting machine
InactiveCN102513515AAvoid being corrodedFluctuation of liquid level is smallHydraulic cylinderThick plate
A method for automatically changing a slag line of a tundish submersed nozzle for an ultra-thick plate blank casting machine belongs to the technical field of plate blank continuous casting. The process steps are: installing a position sensor on a hydraulic cylinder of a tundish trolley and obtaining average values of actual level of the tundish trolley in a steel pouring process through numerical values reflected by the position sensor; installing an automatic liquid lever measuring meter on a crystallizer, and obtaining actual crystallizer level in the steel pouring process through a crystallizer liquid level automatic measuring system; installing the submersed nozzle on the tundish trolley, and measuring the distance between the bottom of the tundish trolley and the top of the submersed nozzle; lowering the tundish trolley to a lowest position, and measuring the distance between the bottom of the tundish trolley and the top of a crystallizer copper plate; inputting a formula for calculating actual immersion depth of the submersed nozzle in the steel pouring process into a software program of the casting machine, setting time intervals and changing amount of each time of height changing of the tundish trolley in an automatic system of the casting machine and achieving the operation of automatic slag line changing of the submersed nozzle. The method has the advantages of prolonging service life of the tundish submersed nozzle of the casting machine.
Owner:QINHUANGDAO SHOUQIN METAL MATERIAL +1
Self-service claim settlement method, server and computer readable storage medium
The invention discloses a self-service claim settlement method, which comprises the steps of obtaining the identity and report information of an insured person according to a report request upon receiving the input report request; obtaining all policies of the insured person according to the identity of the insured person; according to the report information, screening out the claimable policy ofthe report in the all the policies; and generating a corresponding claim settlement case according to the claimable policy and the report information. The invention also discloses a server and a computer readable storage medium. According to the invention, the automatic screening of the policy for applying for claim settlement is realized, the proportion of claims rejected is reduced, and the aging time of claim settlement is improved.
Owner:PING AN TECH (SHENZHEN) CO LTD
Order allocation method and device as well as electronic equipment
PendingCN108229864AReduce rejection rateImprove the efficiency of delivery servicesResourcesLogisticsDistribution methodOrder form
The invention provides an order allocation method and device as well as electronic equipment. A specific embodiment of the method comprises steps as follows: determining a preset order receiving willcorresponding to each alternative delivery party of to-be-allocated orders; seeking first matching delivery parties from the alternative delivery parties on the basis of the preset order receiving wills, wherein the to-be-allocated orders meet the preset order receiving wills corresponding to the first matching delivery parties; allocating the to-be-allocated orders to the first target delivery party selected from the first matching delivery parties. During allocation of the orders, the order receiving wills preset by the alternative delivery parties are considered, therefore, the order rejection rate of deliverymen can be effectively reduced during order allocation, and the delivery service efficiency is improved.
Owner:BEIJING SANKUAI ONLINE TECH CO LTD
Imaging distortion correction method and device, computer device and storage medium
ActiveCN109345467AAccurate correctionReduce rejection rateImage enhancementPrint image acquisitionOptical ModuleRejection rate
The invention discloses an imaging distortion correction method and device, a computer device and a storage medium. The method comprises the following steps of calculating a theoretical image height when the image is zero distortion according to the field angle of view of a wide angle lens, the distortion rate of the wide angle lens and the actual image height after the image distortion formed bythe wide angle lens; generating a first correction function for correcting the distortion of the image formed by the wide angle lens according to the theoretical image height and the field angle of view; compensating a first correction function for obtaining a second correction function for correcting distortion of an image formed by an optical module of a wide angle lens, wherein the wide-angle lens optical module comprises a wide-angle lens; acquiring the image formed by the wide-angle lens optical module, and correcting the image formed by the wide-angle lens optical module by a second correction function. The invention can accurately correct the image formed by the optical module of the wide-angle lens, reduces the rejection rate and the recognition rate of the image when the image isrecognized, and improves the user experience.
Owner:深圳市麦极客图像技术有限公司
Identity registration and identity authentication method, device and system
The embodiment of the invention provides an identity registration and identity authentication method, device and system. The method comprises the steps that according to a login password and login biological characteristics, a terminal is used for extracting recovery biological characteristics from a biological characteristic safe box by the adoption of a biological characteristic decoding algorithm; then, the terminal is used for obtaining registration verification information, and generating login verification information by the adoption of a registration verification algorithm according to the recovery biological characteristics and the login password, and if the registration verification algorithm is identical to the login verification information, the terminal determines that the login password and the login biological characteristics are effective. In the method, when a user is legal, the recovery biological characteristics extracted from the biological characteristic safe box according to the login biological characteristics are completely identical to registration biological characteristics, and therefore the authentication rejection rate of biological characteristic authentication can be decreased, and the recognition capability of the biological characteristics is enhanced.
Owner:HUAWEI TECH CO LTD
Efficient routing method under distributed domain-division network
The invention discloses an efficient routing method under a distributed domain-division network, which comprises the following steps that: a source node sends a service request packet to a cluster head node of a region, and the cluster head node judges whether the source node and a target node are positioned in the same region or not; if the source node and the target node are in the same area, the cluster head node calls area resource pool information and returns one or more routing paths meeting the QoS (Quality of Service) requirement of the service based on a routing decision algorithm ofreinforcement learning, and end-to-end routing establishment of the service is completed; if the source node and the target node are in different regions, the cluster head node calls global resource pool information, judges the region through which the service needs to pass based on a routing decision algorithm of reinforcement learning, and splits the service request by adopting a cross-region service request splitting method; and the split service requests are sent to the cluster head nodes of the passing areas, then area resource pool information is called, and finally end-to-end routing decision is completed by multi-area cooperation based on a routing decision algorithm of reinforcement learning to obtain a routing path from a source node to a target node.
Owner:CHINA ELECTRONICS TECH GRP NO 7 RES INST
Fingerprint template update method, fingerprint template update device and terminal equipment
InactiveCN106372609ATimely updateOrderly updateMatching and classificationPattern recognitionUser input
The invention discloses a fingerprint template update method, a fingerprint template update device and terminal equipment. The method comprises steps that a fingerprint image inputted by a user is matched with fingerprint templates inputted in a fingerprint database, and the inputted information corresponding to the fingerprint templates is marked; if a matching degree of the fingerprint image and the fingerprint templates is greater than a preset threshold, whether the quantity of the inputted fingerprint templates reaches a preset threshold value is detected; if the quantity of the inputted fingerprint templates reaches the preset threshold value, to-be-replaced fingerprint templates are deleted from the fingerprint database according to the inputted information corresponding to the fingerprint templates; the fingerprint image is taken as a new fingerprint template to input to the fingerprint database, and the inputted information corresponding to the fingerprint image is further marked. Through the method, the fingerprint templates can be timely and sequentially updated, a false rejection rate is reduced, and validity of a fingerprint learning function and fingerprint identification accuracy are improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
On-line optimizing shearing method of roller milling large plate
ActiveCN101097441AExtension of timeIncrease productionElectric programme controlShearing control devicesShear lineEngineering
The invention discloses a on-line optimizing cutting method of rolling board, it uses flat surface detecting device and on-line ultrasonic detection equipment to roll shape of big board and detect inner defect before snip head, and using cutting line course computer to transform detected shape data of rolling big board and inner defect data to image and displayed on operation interface and setting cutting position and defect avoiding to accomplish cutting of big board. The on-line optimizing cutting method resolves effectively problem that rolling big board with defects on head and trail needs manpower detection or finished board possesses defect of head and trail, it fits for continuous operation, and increasing cutting production capability and steel lumber ratio.
Owner:BAOSHAN IRON & STEEL CO LTD
Injection moulding process for neutral and acid-group-containing (METH)acrylate copolymers
InactiveUS20080260814A1Minimize contaminationImprove throughputOrganic dyesPharmaceutical non-active ingredientsMeth-Injection moulding
Processes for producing moldings by injection moulding, include melting a mixture made from a (meth)acrylate copolymer and a release agent, devolatilizing the mixture, injecting the molten and devolatilized mixture into a mold cavity of an injection mold, cooling the molten mixture, and removing the resultant molding from the mold.
Owner:CAPSUGEL BELGIUM NV
Processing process for threshing, re-drying and classifying tobacco stems
ActiveCN105639715AFacilitate moisture escapeReduce the temperatureTobacco treatmentLoss rateEngineering
The invention discloses a processing process for threshing, re-drying and classifying tobacco stems, which comprises the following steps: firstly performing leaf-stem separation; preliminarily screening stem turning heads and broken stems; then screening the tobacco stems into the three types of tobacco stems with different thicknesses of 1.5-2.0 mm, 2.0-2.5 mm and 2.5-3.0 mm; pre-pressing the three types of tobacco stems, wherein gaps among the pressed stems are 0 .8 mm, 1.0 mm and 1.2 mm respectively; mixing the three types of pre-pressed tobacco stems and re-drying; finally packaging and storing. According to the processing process disclosed by the invention, the tobacco stem re-drying efficiency can be improved, the consistence of the batch water loss rate and the moisture content after re-drying is improved, and the tobacco stem aging progress is accelerated; the tissue destruction difference degree of the tobacco stems with different thicknesses in the cut stem making process is reduced, the stem storage time is shortened, the production efficiency of the cut stem making procedure is improved, the cut stem moisture content fluctuation, the rejection rate and the energy consumption are reduced, and the uniformity of cut stems, the moisture content and the stability of filling values are improved.
Owner:CHINA TOBACCO HENAN IND
Fingerprint input method and related device
ActiveCN109800731AReduce rejection rateImprove accuracyImage enhancementDigital data processing detailsComputer visionFalse rejection rate
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Internet of Vehicles cloud computing resource optimization method based on reinforcement learning
ActiveCN111711666AReduce rejection rateImprove QoEData switching networksEngineeringResource allocation
The invention discloses an Internet of Vehicles cloud computing resource optimization method based on reinforcement learning. The method specifically comprises the steps of carrying out the modeling of an Internet of Vehicles system resource distribution problem as a semi-Markov decision process SMDP, and introducing a resource reservation strategy and a resource secondary distribution mechanism;and solving the model by using reinforcement learning. According to the invention, the system is enabled to obtain the optimal scheme of Internet of Vehicles resource allocation, and the resource utilization rate, the system QoS and the user QoE are improved.
Owner:华路易云科技有限公司
Fingerprint matching method and apparatus, and electronic device
InactiveCN107278309AImprove experienceReduce rejection rateDigital data authenticationSubstation equipmentPattern recognitionComputer vision
Some embodiments of the present application provide a fingerprint matching method and apparatus, and an electronic device. The fingerprint matching method includes: acquiring a fingerprint image; determining whether the acquired fingerprint image matches with a preset fingerprint image; detecting whether the finger has left the fingerprint acquisition area and the number of unsuccessful matches is greater than the preset matching number when the acquired fingerprint image does not match the preset fingerprint image, and reacquiring the fingerprint image If the finger has not left the fingerprint collection area and the number of unsuccessful matches is less than or equal to the preset matching number. The present application also provides a fingerprint matching device and an electronic device adopting the aforementioned fingerprint matching method. By adopting the embodiments of the present application, it is possible to collect a plurality of user fingerprint images for matching in a single press process of a user to prevent that successful fingerprint authentication requires pressing for many times due to poor fingerprint images, thereby reducing false reject rate of fingerprint authentication and improving user experience.
Owner:SHENZHEN GOODIX TECH CO LTD
Printed circuit board filter having rows of vias defining a quasi cavity that is below a cutoff frequency
ActiveUS8008997B2Low production costReduce rejection rateLine/current collector detailsOne-port networksTransformerBand shape
A low frequency reject filter element is formed on a printed circuit board that utilizes the fact that power transmission in a waveguide is cut-off below a certain frequency. A quasi waveguide cavity is formed in printed circuit board using the top and bottom ground plane of the stripline circuit and using conductive via holes to form the side walls of the cavity. Waveguide cavity mode is launched from the input and output striplines by shorting them to ground. Transformers and matching via hole elements may be used to improve matching. The resulting filter is compact and is highly effective in suppressing low frequency transmissions.
Owner:HARRIS CORP
Method for heating Ni-containing steel and removing iron oxide scales
ActiveCN103602925AGuaranteed surface qualityReduce rejection rateFurnace typesHeat treatment process controlChemical compositionSheet steel
The invention relates to a method for heating Ni-containing steel and removing iron oxide scales. A steel blank comprises, by weight, less than or equal to 0.15% of C, 0.15-0.50% of Si, 1.20-1.60% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.60-1.00% of Ni, 0.2-0.4% of Cr, 0.2-0.4% of Mo and 0.005-0.020% of Nb. The heating process of the method comprises a pre-heating stage, a primary heating stage, a secondary heating stage and a soaking stage. The method is characterized in that micro-positive pressure and a weak oxidization atmosphere are adopted. The method solves the problems that the Ni-containing steel blank has more iron oxide scales and large viscosity and high pressure water is removed difficultly, so that surface quality of the finished steel plate is guaranteed and a waste ratio is reduced.
Owner:INNER MONGOLIA BAOTOU STEEL UNION
Fingerprint registration method and terminal device
ActiveCN104036269AReduce rejection rateCharacter and pattern recognitionPattern recognitionTerminal equipment
The invention relates to a fingerprint registration method and a terminal device. The fingerprint registration method comprises the following steps that first-state fingerprints of users are collected, first feature point information of the first-state fingerprints is extracted, second-state fingerprints of the users are collected, second feature point information is extracted from the second-state fingerprints, and feature point information is selected from an intersection of the first feature point information and the second feature point information and used as first fingerprint registration information of the users.
Owner:NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
Underground coal mine deep-hole directional blasting cartridge
ActiveCN103759601AReduce the probability of denialDirectional blasting effect is goodBlasting cartridgesBlastingCoalEngineering
An underground coal mine deep-hole directional blasting cartridge comprises a cartridge body (1), an upper connector (2) and a lower connector (3). One side or opposing sides of the cartridge body (1) are provided with cuts (4), and each cut is covered with a layer of metal sheet (5) which is provided with a V-groove by concaving; the bottom of every V-groove points to the center of circle along the peripheral radial direction of the cartridge body and is arranged at a 1 / 2 radius part. The underground coal mine deep-hole directional blasting cartridge allows for more ideal directional blasting.
Owner:TIANDI SCI & TECH CO LTD
Self-adaptive fingerprint identification system
InactiveCN102708363AReduce rejection rateReduce the impactCharacter and pattern recognitionPattern recognitionComputer vision
The invention relates to a self-adaptive fingerprint identification system which comprises a fingerprint acquisition unit. The fingerprint acquisition unit is provided with a fingerprint analysis module for carrying out focusing processing on an acquired fingerprint. According to the self-adaptive fingerprint identification system provided by the invention, the fingerprint analysis module is arranged for carrying out focusing processing on the acquired fingerprint, so that ideal fingerprint imaging can be ensured to be obtained, the influence of the environment on the fingerprint identification can be reduced, the accuracy of the fingerprint identification is improved and the false reject rate of inputting the fingerprint is reduced.
Owner:JIANGSU QUNXIONG INTELLIGENT TECH
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