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612 results about "Test evaluation" patented technology

Definition: Test & Evaluation (T&E) is the process by which a system or components are compared against requirements and specifications through testing. The results are evaluated to assess progress of design, performance, supportability, etc.

Image super-resolution enhancement method based on knowledge distillation

ActiveCN108830813AImproving the effect of image super-resolution enhancementEfficient operation effectImage enhancementImage analysisDistillationNetwork structure
The invention discloses an image super-resolution enhancement method based on knowledge distillation. The method comprises the following steps of 1) obtaining training data and test data; 2) traininga teacher network, wherein the teacher network is provided with a neural network model of a relatively deep convolutional layer; 3) training a student network; 4) performing guidance learning on the student network by the teacher network, and enabling the student network to learn and absorb feature graphs of the teacher network through three sets of guidance experiments; 5) testing and evaluatingan image reconstruction effect; and 6) further guiding the student network according to different matrix relations between the output feature graphs. By means of related thoughts of the knowledge distillation, the performance of the teacher network is transmitted to the student network; the student network model can efficiently run in mobile equipment and embedded equipment with low-power-consumption limitation; and on the premise that the network structure of the student network is unchanged, the PSNR of the student network guided by the teacher network is obviously improved, and a better reconstruction effect is obtained.
Owner:福建帝视科技集团有限公司

Bridge field static load test evaluation method

ActiveCN104933285AEffective and comprehensive assessmentImprove securitySpecial data processing applicationsElement modelEvaluation Interval
The present invention relates to a bridge field static load test evaluation method, which is mainly a method for evaluating the bearing capacity and adaptation performance of a bridge by means of a field static load test. The method comprises the following steps: (1) determining specific content and method for collecting relevant data for early stage preparation work; (2) establishing a reasonable and accurate bridge structure finite element model according to the collected data; (3) calculating and analyzing a result according to an endogenous force and a stress of the bridge under dead and live loads, and determining theoretical force bearing safety and live load force bearing characteristics; (4) in combination with a traditional key section of the bridge, determining a bridge test section and completing static load test solution designing; (5) performing the field static test for the bridge and processing the test data; (6) studying an evaluation interval corresponding to a preset test evaluation indicator; and (7) making a reasonable and comprehensive assessment on the structural performance of the bridge. The evaluation method and indicator according to the present invention can more effectively indicate the practical bearing capacity and applicability of the bridge in a refined manner, and improving the reasonability and accuracy of the evaluation result.
Owner:SOUTHWEST JIAOTONG UNIV

Skin type detection and individuation evaluation system and method based on cloud platform

The invention discloses a skin type detection and individuation evaluation system and method based on a cloud platform. The detection and individuation evaluation system and method based on the cloud platform are characterized in that a face skin image of a user is directly collected and effective data is extracted from the image and sent to a skin type detection cloud platform through a skin type detection terminal or a user APP; the individuation evaluation system conducts processing on the effective data in the skin type detection cloud platform through the adoption of a series of skin index analysis and process algorithms, and feeds a processing result back to the skin type detection cloud platform after an evaluation result is obtained; the skin type detection cloud platform synchronously sends the processing result to the skin type detection terminal or the user side APP; the user examines the test evaluation result by controlling a client end or the user APP. According to the skin type detection and individuation evaluation system and method based on the cloud platform, a face skin detection instrument and a machine learning technology are combined, a big data analyzing and processing technology and a machine learning method are adopted, an instrument detection result and an evaluation index are continuously optimized, a more accurate detection and nursing method are provided for the user, and a richer and more scientific specimen is provided for the study of face skin health.
Owner:武汉嫦娥医学抗衰机器人股份有限公司

Prediction method of multi-functional parameter accelerated degradation testing product life based on multivariate hybrid time sequence analysis

InactiveCN102042848ASolve the problem that the forecast is not accurate enoughSolving the Mean Vector Modeling ProblemSpecial data processing applicationsStrength propertiesData acquisitionEngineering
The invention discloses a prediction method of multi-functional parameter accelerated degradation testing product life based on multivariate hybrid time sequence analysis, belonging to the technical field of accelerated test evaluation, comprising the steps of test data acquisition and pretreatment; multi-functional parameter time sequence modeling; multi-functional parameter degradation failure prediction; multi-functional parameter degradation accelerated modeling and multi-functional parameter product life prediction; the problem that the prediction is inaccurate since the mutual influence among a plurality of property parameter degradation processes of the product is unconsidered in the single property parameter degradation prediction of the product is solved; a multivariate hybrid time sequence model is put forward in considering monotonicity degradation trend, randomness and cyclical fluctuation in the product multi-functional parameter degradation process and the relativity of the characteristics among the property parameter; a failure criterion of the product multi-functional parameter degradation is put forward; the description to the multi-functional parameter degradation process is more comprehensive and the accuracy of the prediction result of multi-functional parameter accelerated degradation testing life is improved.
Owner:BEIHANG UNIV

Three-station time-difference positioning performance test evaluation method

InactiveCN104316903ASolve the problem of three-station time difference positioning performance test evaluationPosition fixationObservational errorPassive detection
The invention, which belongs to the technical field of passive detection, discloses a three-station time-difference positioning performance test evaluation method. A three-station time-difference positioning performance test evaluation model is established, and deployment of a time-difference positioning system and a flight route of an airborne radiation source or airborne radar signal simulator are designed; on the basis of a positioning error test result of the whole flight route, an unknown parameter in an integrated time measurement error model is resolved; and with the integrated time measurement error model and a positioning error GDOP model, a positioning error at any position or a positioning error at any plane can be obtained. According to the invention, the resolving method of correlated parameters in the integrated time measurement error model as well as the positioning error in any station distribution mode and at any radiation source position are provided. Therefore, a three-station time-difference positioning performance test evaluation problem according to the background technology can be solved; defects of the ideal or fixed integrated time measurement error model can be overcome; and the method can be promoted to the ground test mode field without radiation source flight.
Owner:中国人民解放军63891部队

Intelligent substation relay protection noninvasive test system and method

The invention relates to an intelligent substation relay protection noninvasive test system and an intelligent substation relay protection noninvasive test method, which belong to the technical field of electric systems. The intelligent substation relay protection noninvasive test system comprises a network communication module, an SCD analysis module, a test control module, a test excitation module and a test evaluation module, wherein the SCD analysis module, the test control module, the test excitation module and the test evaluation module are respectively connected with the network communication module; the SCD analysis module is respectively connected with the network communication module, the test evaluation module and an HMI for transmitting an SCD file; the network communication module is respectively connected with an MMS network and a GOOSE network for transmitting the SCD file, a test instruction and a test case; the test control module is respectively connected with the HMI, the test excitation module and the network communication module for transmitting the test instruction, and the test control module is connected with the test evaluation module for transmitting a test requirement; the test excitation module is used for receiving the test instruction and outputting the test case to the network Through the system and the method, tests on an SV chain circuit between a merging unit and a protection device as well as a GOOSE chain circuit between the protection device and an intelligent terminal can be implemented, and the test efficiency of an intelligent substation is improved.
Owner:福建永福数字能源技术有限公司

Calibration optimization method and system for speaking test evaluation

The invention discloses a calibration optimization method and system for speaking test evaluation. The method includes the steps of selecting part of all voice data corresponding to question types to be calibrated to serve as calibration voice data, conducting manual annotation by calibration specialists, obtaining the manual annotation result of the manually-annotated calibration voice data, conducting voice recognition on the calibration voice data through a voice recognition system, extracting evaluation characteristics of different characteristic types corresponding to evaluation standards of the question types to be calibrated from the voice recognition result of the calibration voice data, and training and optimizing existing marking models corresponding to the question types to be calibrated through the combination of the evaluation characteristics and the manual annotation result of the calibration voice data so as to obtain new marking models. Due to the fact that the existing marking models are optimized through the manual annotation result, the new marking models can be matched with the marking standards of existing speaking tests as much as possible, and the better marking performance can be presented when the speaking test evaluation is conducted through the new marking models obtained through the method.
Owner:IFLYTEK CO LTD

Method for machining fuel manifold with nozzles and of welding structure

ActiveCN103586639AImprovement of welding deformationDimensional accuracy qualifiedArc welding apparatusWork holdersFriction weldingEngineering
The invention discloses a method for machining a fuel manifold with nozzles and of a welding structure. The method includes the welding step, the thermal treatment step and the boring step. Assembly and positioned welding are conducted on each nozzle shell and each pipe at the position, located on the middle arc increasing position, of a small-section welding clamp, and 15 sets of welded nozzle assemblies are formed and corrected at the position; assembly and positioned welding are conducted on every two sets of nozzle assemblies at the middle arc increasing position of the welding clamp according to the general drawing position, and the welded nozzle assemblies are corrected on the original welding clamp; in the process of forming half rings of the manifold, assembly and positioned welding are conducted on each welding seam at the middle arc increasing position of the welding clamp, and the welded welding seams are corrected on the original welding clamp; eventually positioned welding is conducted on the two half rings on the original welding clamp, and the two welded half rings are corrected. The method has the advantages that the welding deformation phenomenon is obviously improved, size accuracy is qualified, the method smoothly passes long test evaluation, the quality is stable, and no fracture failure in the engine test process occurs.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

Stairwell fire simulation experimental apparatus of super high-rise buildings

The invention provides a stairwell fire simulation experimental apparatus of super high-rise buildings. The experimental apparatus comprises an experimental apparatus body, a pressurized air supply system, and a supporting measurement and control system. The experimental apparatus body comprises a stairwell, a front chamber and a room construction structure which are corresponding with actual multi-story buildings or super high-rise buildings and are undersize; and the experimental apparatus body is built by steel tubes and formed by welding and sealing steel plates, and refractory glass is adopted for the front face and the right side face. The air output of the pressurized air supply system can be adjusted, thus being capable of fully carrying out studies on a series of fundamental theoretical problems and practical engineering problems in fume flow and control of the super high-rise buildings; a large number of high-temperature glass viewing windows and aided viewing systems are adopted in the experimental apparatus, thus being capable of clearly observing the real-time phenomenon of the fume movement; and a methanol plus incense coil missing fume mode is adopted for fire source selection, thus ensuring safety and cleanness during the whole experimental process and being capable of actually simulating real fire. The stairwell fire simulation experimental apparatus of super high-rise buildings has wide application prospect in design and test evaluation of the fire pressurized air supply system of the super high-rise buildings.
Owner:UNIV OF SCI & TECH OF CHINA

Method and device for testing active coke desulfurization and denitration performance characterization

The invention discloses a device for testing active coke desulfurization and denitration performance characterization. The device comprises a simulation gas source system (1), an automatic simulation flue gas distribution system (5), a heating reaction furnace simulation reactor system, a flue gas monitoring and tail gas treatment system and an automatic computer display control system (7). The invention also discloses a method for testing the active coke desulfurization and denitration performance characterization based on the device. According to the method and the device, the operation is simple, rapid and convenient, and the performance indexes such as desulfurization and denitration of active coke (charcoal) products for dry active coke flue gas purification can be subjected to characterization rapidly and accurately. Due to the adoption of the method and the device, the human factor interference in the test evaluation process can be reduced, and the working efficiency of a test is improved. According to the method and the device, the change characteristics of active coke desulfurization and denitration performances before, in and after the operation of a dry active coke flue gas purification technology can be known and evaluated in time, so that technical data support is provided for the design and the operation of a dry active coke flue gas purification project.
Owner:BEIJING SPC ENVIRONMENT PROTECTION TECH

Mobile network communication quality evaluation method based on analytic hierarchy process

The invention discloses a mobile network communication quality evaluation method based on an analytic hierarchy process, which comprises the following steps of: (1) preprocessing indexes constituting a mobile communication network communication quality index system; (2) calculating the indispensable evaluation result according to the indispensable indexes of the mobile communication network communication quality by adopting a secondary analytic hierarchy process model; (3) calculating the selective-test evaluation result according to the selected selective-test indexes of the mobile communication network communication quality; and (4) taking the sum of the evaluation results of the indispensable indexes and the selective-test indexes of the mobile communication network communication quality as the final evaluation result. Adopting the invention not only can realize the benchmarking inspection of the mobile communication network communication quality, but also can obtain the scientific and rational quantitative evaluation result of the mobile communication network communication quality in order to evaluate the communication qualities of different mobile communication networks of different operators.
Owner:TELECOMM METROLOGY CENT OF MINIST OF IND & INFORMATION TECH

Water-rich loose and broken coal and rock mass grouting solidification experimental device and effect evaluation method

The invention provides a water-rich loose and broken coal and rock mass grouting solidification experimental device and an effect evaluation method. The water-rich loose and broken coal and rock massgrouting solidification experimental device comprises an experimental cavity formed in a steel structure kettle body, a circulating water pressure loading system communicating with a confining pressure loading system, a grouting system communicating with the confining pressure loading system, an ultrasonic testing system and an electrical resistivity tomography system, wherein the ultrasonic testing system and the electrical resistivity tomography system are connected to the experimental cavity; and the water pressure and chemical grout are input into the experimental cavity of a stratum model, thus the coal measure stratum wave speed, dynamic mechanical parameters and electrical resistivity information in the experimental cavity in the grouting process are monitored in real time through the ultrasonic testing system and the electrical resistivity tomography system, and the water-rich loose and broken coal and rock mass grouting reinforcing effect is evaluated. Multi-field physical evolution law simulation tests in the chemical grouting process in water-rich loose and broken coal and rock mass and the grouting effect are quantitatively evaluated, and the scientific basis is provided for loose and broken coal and rock mass grouting reinforcing parameter determination and effect test evaluation of underground engineering.
Owner:XIAN UNIV OF SCI & TECH
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