31results about How to "Accurate Performance Evaluation" patented technology

By providing a performance metrics calculation section 4 for calculating a predetermined performance metrics determined in advance from at least part of data from among various condition data concerning a performance evaluation model, which are input from condition input sections 1 to 3, calculating the predetermined performance metrics from the input condition data, and performing performance prediction using not only the input data but also the calculation result, unlike inputting a performance metrics on the basis of the prediction of a developer, there is no room where experience, intuition, or the like, of the developer enters, and the performance of the system can be represented with very objective numerical values even if any person performs.

The invention discloses a layering and reconfigurable on-chip network modeling and simulation system. The system comprises a test layer, a main body layer and an operation layer. The core of the test layer is a reconfigurable rout unit and a network interface unit, and the test layer can change network structure parameters dynamically. The main body layer is mainly composed of a resource node unit, is provided with a universal OCP interface which is connected with the route unit through the network interface unit and integrates a flow generation mechanism unit, a receiving mechanism unit and a performance analysis logic unit. The operation layer is composed of a software configuration module, provides a good person-to-person interaction interface, and is used for flexible configuration and structure generation of the on-chip network structure feature parameters and communication modes. The layering and reconfigurable on-chip network modeling and simulation system can conduct modeling on an on-chip network architecture structure utilizing different topological structures, network sizes, routing algorithms, buffer area depths and the like, conduct network performance simulation under different communication models and communication loads, and provide a basis for the on-chip network architecture design under different application demands.

The invention provides a performance detecting system for an application program, which comprises a script creating unit, a detection target determining unit and a performance determining unit; the script creating unit is used for a creating script file according to the requirements of hardware configuration and software parameter setting of a deployment environment required the application program; the detection target determining unit is used for determining at least one target item that need to be detected when the application program is being detected, according to the function of an execution module in the deployment environment; and the performance determining unit is used for driving the corresponding script files of the target item when the application program is being detected, determining the performance valve of the target item according to the script file, obtaining a comprehensive value of the application program, and displaying the comprehensive value. The invention further provides a performance detecting method for the application program. Through the technical scheme of the invention, the deployment environment of the application program can be fully detected, accurate and authoritative performance evaluation can be given, and the detecting process is of good universality, usability and expandability.

A pneumatic tire includes a composite assembly comprising a rubber web and a plurality of parallel cords embedded in the rubber web at spaced intervals in the circumferential directions of the pneumatic tire. The pneumatic tire is approximated with a finite element model generated by dividing the pneumatic tire into a plurality of finite elements and analyzing the finite element model according to a finite element process. A composite assembly element model is generated for the composite assembly by dividing the rubber web into rubber web elements as solid models and dividing the cords into cord elements as solid elements, according to the finite element process.

The invention provides a detection method of a battery. The detection method comprises the following steps of: detecting an environment temperature of a place where the battery is located and keeping the environment temperature to be constant; discharging the fully charged battery according to a predetermined discharge mode until discharge voltage of the battery reduces to a first voltage threshold value, and acquiring the discharge capacity C1 of the battery; charging the discharged battery according to a predetermined charge mode until the battery is fully charged, and placing the fully charged battery for a predetermined time T; discharging the battery again according to the predetermined discharge mode until the discharge voltage of the battery reduces to the first voltage threshold value, and acquiring the discharge capacity C2 of the battery; and acquiring a self-discharge rate K of the battery according to the discharge capacity C1, the discharge capacity C2 and the predetermined time T. The detection method provided by the invention effectively solves a problem that self discharge judgment is inaccurate because a voltage platform of a lithium iron phosphate battery is too gentle. In addition, the detection method is simple to operate, high in reliability, and convenient for industrial production applications.

The invention discloses a method for testing the soot dispersing performance of engine oil. The method includes steps of A, manufacturing to-be-tested oil samples, to be more specific, adding soot particles into the engine oil, and stirring and uniformly mixing the soot particles and the engine oil to form the to-be-measured oil samples; B, testing the dispersing performance, to be more specific, arranging the to-be-measured oil samples in a rotational rheometer and measuring time-varying curves of the viscosity of the oil samples under the conditions of fixed shear rates and fixed temperatures; C, acquiring the dispersing performance, to be more specific, computing viscosity increase values and slope in a certain period of time and measuring the slope. The dispersing capacity of the engine oil is good if the slope is low.

The invention provides a performance evaluation device and method for a photoacoustic spectrometry multi-component gas analysis instrument. The device comprises a sound insulation box, a high-purity nitrogen conveying system, a to-be-tested gas conveying system, a salt solution container and a gas mixing chamber, wherein an environmental noise simulation device and a to-be-evaluated photoacousticspectrometer are arranged in the sound insulation box; and a gas inlet of the to-be-evaluated photoacoustic spectrometer communicates with an outlet of the gas mixing chamber to detect the concentration of gas entering the gas mixing chamber. According to the device, the influence of noise on a measurement result in a real working environment is simulated through the environmental noise simulationdevice, so that the capability of the photoacoustic spectrometer in resisting the environmental noise interference can be evaluated; and meanwhile, test gases with different types and concentrationscan be replaced, the test of cross sensitivity and detection limits of the gases is realized by combining with a specific signal processing method, and accurate, efficient and reliable performance evaluation is carried out on key technical indexes of the to-be-evaluated photoacoustic spectrometer.

The invention discloses an unmanned aerial vehicle control system operation performance evaluating method based on an intuitionistic fuzzy entropy weight, which comprises the steps of firstly determining a dynamic intuition fuzzy decision matrix of a system attribute, then determining a weighted intuition fuzzy decision matrix and a weighted dynamic decision matrix of each system tk time period, and finally determining the relative operation performance of each system and sequencing the operation performances of the systems. The system operation performance evaluating method based on the intuitionistic fuzzy entropy weight is advantageous in that a defect of high difficulty in handling a complex uncertain system is overcome; the operation process of the whole system is considered; and the operation performance of the system can be dynamically reflected so that the evaluation is more scientific and more reasonable.

The invention relates to a method for analyzing the THFS-modified-asphalt temperature sensing performance based on a CAM model. The method includes the following steps that 1) all performances of matrix asphalt and DCLR are tested; 2) through a soxhlet extractor, THF serves as an extracting solvent, the DCLR is extracted; 3) the THFS extracted from the DCLR serves as a modifying agent, and THFS modified asphalt is prepared; 4) the THFS modified asphalt with different mixing amounts at the different test temperatures is subjected to frequency scanning analysis through a dynamic shear rheometer;5) according to the time temperature equivalence principle, trial curves at the different test temperatures transversely move, and modulus master curves at some specific temperature are synthesized;6) multiple modulus G* master curves of the modified asphalt under the different THFS mixing amounts are subjected to fitting calculation based on the CAM model, and the temperature sensing characteristic of the THFS modified asphalt is evaluated through physical parameters in the CAM model; 7) the influence rules of the different THFS mixing amounts on the modified-asphalt temperature sensing performance are analyzed.

An embodiment of the invention includes applying a first partition to a plurality of LPs, wherein a particular LP is assigned to a first set of LPs. A second partition is applied to the LPs, wherein the particular LP is assigned to an LP set different from the first set. For both the first and second partitions, lookahead values and transit times are determined for each of the LPs and related links. For the first partition, a first system progression rate is computed using a specified function with the lookahead values and transit times determined for the first partition. For the second partition, a second system progression rate is computed using the specified function with the lookahead values and transit times determined for the second partition. The first and second system progression rates are compared to determine which is the lowest.

The invention provides a photoetching machine performance evaluation system based on a key index algorithm and an application method thereof, and the method comprises the steps: providing production source data of a photoetching machine, and processing production source data through a data processing module to obtain initial version data; obtaining a plurality of key indexes based on the initial version data; carrying out system development based on a plurality of key indexes, including interface design and logic implementation thereof; designing an interface project; creating a service program and implementing the service program; creating a host and creating an agent; and sequencing the efficiency among photoetching machines. A key index algorithm is designed to better evaluate the utilization efficiency of the photoetching machine, systematize the algorithm design, predict the incoming condition or the state of the machine based on historical and current data, and monitor the current running condition of the machine in real time, thereby being beneficial to solving the machine with the optimal efficiency and obtaining the efficiency utilization sequence among the machines. Efficiency evaluation of the photoetching machine is accurate.

In order to provide a photovoltaic power generation system evaluation apparatus and evaluation method that is capable of measuring the performance of a photovoltaic power generation system accuratelywhile using simple equipment outdoors using sunlight, there are provided a plurality of illumination intensity sensors disposed in the vicinity of the photovoltaic panels, and an evaluator that is connected to a PCS and to the sensors, and evaluates the performance of the photovoltaic power generation system based on outputs from each of these, and the evaluator includes an output acquisition unitthat acquires an output of the photovoltaic panels from the PCS, a consistency degree calculation unit that calculates a degree of consistency in illumination intensity measurement values measured bythe sensors, and a determination unit that, when the degree of consistency is within a predetermined permissible range, determines that the output of the photovoltaic panels acquired by the output acquisition unit is a true value.

The embodiment of the invention provides a power semiconductor device type selection method, which belongs to the technical field of power semiconductor device evaluation, and comprises the following steps: 1, obtaining the switching speed of a power semiconductor device and discrete points of a driving resistor; 2, obtaining a correlation curve of the switching speed and the driving resistance; 3, obtaining a working switching speed value based on the requirement of an actual working condition, and obtaining a matched driving resistance value corresponding to the working switching speed value of the power semiconductor; and 4, obtaining current change and voltage change when the power semiconductor device is turned off and/or turned on based on the power semiconductor device under the configuration matching driving resistance value, and judging the performance of the power semiconductor device. Through the processing scheme provided by the invention, the problem that the performance of the power semiconductor device cannot be accurately judged under a specific working condition in the prior art is solved.

The invention provides a circuit board test shielding box system. The circuit board test shielding box system comprises a shielding box and a test control system installed on the shielding box. The shielding box is internally provided with a needle bed test bench for testing the circuit board, the needle bed test bench is used for bearing the circuit board, and the needle bed test bench comprises an analog input probe used for being connected with an input detection point on the circuit board and a signal receiving probe used for being connected with an output detection point on the circuit board; the test control system is respectively connected with the analog input probe and the signal receiving probe, and the test control system is used for providing an input signal for the circuit board through the analog input probe, receiving an output signal of the circuit board through the signal receiving probe and carrying out test judgment. According to the invention, external electromagnetic interference can be eliminated, and a mode of simulating an input signal in use of the circuit board is adopted during circuit board test, so that the test adapts to the use mode of the circuit board, the performance of the circuit board is truly presented, and the evaluation of the overall performance of the circuit board is more accurate.

The invention is suitable for the technical field of equipment evaluation, and provides an efficiency evaluation system for communication navigation equipment. The system comprises a data query module, a data processing module and an efficiency evaluation module; the data query module is used for querying historical communication data of the communication navigation equipment according to the query condition to obtain evaluation data of the communication navigation equipment; the data processing module is used for grouping the evaluation data according to attributes of the evaluation data; and the efficiency evaluation module is used for inputting each group of evaluation data into a preset multi-level efficiency evaluation model for analysis to obtain an efficiency evaluation result of the communication navigation equipment. According to the system, efficiency evaluation can be carried out on the communication navigation equipment of the helicopter more objectively and accurately.

The invention discloses a data search accuracy verification method, device and equipment and a computer readable medium, and belongs to the technical field of testing. The method comprises the following steps: acquiring a search keyword; determining at least one related dimension for the search keyword; matching a verification rule for the search keyword according to the related dimension; and verifying the accuracy of a search result corresponding to the search keyword according to the verification rule. According to the method, the related dimensions are matched for the search keywords, the verification rule is determined through the related dimensions, accuracy verification can be carried out on each search result corresponding to the search keywords from the multiple related dimensions, the accuracy of the search results is comprehensively evaluated, and the search test function is more flexible and expandable.

The invention discloses a method for improving the verification Reynolds number of a condensed water flow device. The method comprises the following steps: 1), checking that valves F1, F2, F3, F4, F5,F6, F7, F8 and F10 in the condensed water flow device are in a closed state, and F9 is located at a position A; 2) injecting water into the system until a water tank is filled with water and clean water overflows from an overflow port, and closing the F1; 3) performing system preheating: starting a water pump, stabilizing the water pressure through a pressure stabilizing box, circulating the water in the water tank in the system, and preheating the whole system for 20 minutes; 4) filling a standard water tank with hot water, fully infiltrating the container wall of the standard water tank, and draining the water; 5) repeating the step 4) for 2-3 times; 6) draining water from the system: draining the water in the water tank into a lower water tank of a cooling tower of a power plant; and 7) injecting circulating water outlet high-temperature water of the power plant into the water tank for the second time and starting the calibration process of the flow device. The calibration Reynoldsnumber and the calibration precision of the flow device are improved by utilizing the waste heat of the high-temperature circulating water of the power plant.

The present invention relates to a method of estimating the number of urinary podocytes, including detecting podocalyxin in a urinary sediment sample liquid, and more specifically, to a method of estimating the number of urinary podocytes, including the following steps (1) to (3): (1) a step of preparing the urinary sediment sample liquid by separating urinary sediment from urine collected from a test subject and solubilizing podocalyxin in the urinary sediment; (2) a step of calculating a podocalyxin excretion amount in the urinary sediment sample liquid through detection of podocalyxin in the urinary sediment sample liquid; and (3) a step of calculating the number of urinary podocytes by dividing the podocalyxin excretion amount in the urinary sediment sample liquid by a podocalyxin amount per podocyte.