50results about How to "Reflect performance" patented technology

The invention discloses a comprehensive experiment table for performance parameters of a harmonic reducer of a robot, which belongs to the technical field of harmonic reducers and comprises a base, a load application device, a sliding seat, a servo motor and a control unit, wherein the load application device is mounted on the base, an input end of the load application device is connected with a flexible gear of the harmonic reducer, the sliding seat is slidably mounted on the base, slides towards the load application device and is provided with a fixing support for fixing a rigid gear of the harmonic reducer, the servo motor is slidably mounted on the sliding seat and slides towards the fixing support, a power output shaft of the servo motor is connected with a wave generator of the harmonic reducer, and the control unit is used for processing information and recording parameters and is connected with the servo motor and the load application device. The comprehensive experiment table is convenient in operation, is capable of truly and accurately detecting the performance parameters of the harmonic reducer, and is widely applied to detecting the performance of the harmonic reducer.

The invention discloses a method using hydrophobic migration tests to judge silicone rubber aging degree.The method includes: cutting off an insulating umbrella skirt from a root to prepare a test piece or scraping up RTV coating along an insulator, cleaning the natural dirt on the surface of the RTV coating, and placing in a room-temperature environment for 7 days; coating with artificial dirt with the same pollution degree and components; starting the hydrophobic migration tests, performing one hydrophobic migration test every other 12 hours in the first 96 hours, and performing one hydrophobic migration test every other 24 hours in the 96-196 hours; drawing hydrophobic migration curves for evaluating the performance and aging degree of silicone rubber.The method has the advantages that the curves are used for qualitatively evaluating the performance and aging degree of materials, the operation performance of the composite insulator and the RTV anti-pollution flashover coating can be reflected accurately, and advices are provided for the application strategy of the composite insulator and the RTV anti-pollution flashover coating; the method is simple, convenient to operate and capable of increasing work efficiency.

The invention discloses an embedded system performance evaluation method based on five capabilities to solve the technical problem that an evaluation result of an existing embedded system performance evaluation method is poor in comprehensiveness.According to the technical scheme, an index system of the five capabilities is structured, index scores are calculated, and finally comprehensive evaluation is carried out.In the structuring process of the index system, indexes capable of reflecting the five capabilities are selected, repeated terms are removed, cross terms are separated, like terms are merged, and thus the indexes have operability.In the calculation process of the index scores, a black box method is adopted for testing indexes difficult to quantize.Random numerical value indexes are converted into numerical values between [0,1] in a normalization mode; the testing results of index testing terms which are a Boolean proposition are 0 or 1; part of index testing terms which cannot be expressed with numerical values are quantized with an empirical approach.Finally, display is carried out with a radar image.The evaluation result of the method is complete and comprehensive, and scientifically reflects the performance of the embedded system.

The invention relates to a performance detection and analysis method for a gas turbine air intake filter. The method comprises the steps of S1 data collection and S2 intake air filter resistance correcting. According to the step S1, the air pressure of each air intake filter at an air intake filter air inlet in a number of periods of time are simultaneously measured to acquire a first air pressure value; the air pressure of a filter air outlet is simultaneously measured to acquire a second air pressure value; and the air flow of the filter air outlet is simultaneously measured to acquire the air flow value at each time point in different periods of time. According to the step S2, the resistance of the air intake filter is corrected based on the measured first air pressure value, the second air pressure value and the air flow value to acquire the corrected resistance of the filter. The method can be used to effectively select a required gas turbine air intake filter.

The invention provides an optimization method for a tree network topology structure based on a queuing theory and is sued for solving the optimization design problem of large-scale user node interconnection under limited resources and preset service. The method comprises the realization steps of presetting a basic tree network topology structure, a service model and a routing algorithm; establishing a queuing node model of a single basic switching module and a queuing network mode of a whole tree network; carrying out theoretical calculation and simulating calculation on the performance of the tree network topology structure; verifying the theoretical calculation accuracy and the reasonability of the queuing network model; and optimizing the tree network topology structure and parameters. According to the method, the queuing network model is established, the tree network is analyzed quantitatively, the influences of the service strength, the cache, the switching modules and the network topology structure on the network performance are taken into consideration, and the method is applicable to the establishment of the optimum tree network topology structure under preset service demands.

The invention discloses a data processing system for performance management of restaurant service personnel. The data processing system comprises a data collection module, a data storage module and a result display module, wherein the data collection module is connected with a data classification module; the data classification module is connected with the data analysis module; the data analysis module is connected with the data storage module and a data comparison module; and the data analysis module and the data comparison module both are connected with the result display module. Firstly, data are input through the data collection module; the collected data correspond to different service personnel through the data classification module; an analysis is carried out through the data analysis module; the analyzed data enter the data storage module; a data comparison is carried out through the data comparison module; the data comparison result is compared with independently set four ranking score intervals; and then the result is displayed in the display module. The data processing system has the advantages that the performance of the restaurant service personnel can be relatively clearly reflected; the data are relatively accurate; and advantages and disadvantages of each service personnel can be specifically analyzed.

The invention discloses a multimode heterogeneous DTN simulation verification system and method. The distributed architecture of a control workstation and a simulation workstation is adopted, virtual DTN node attribute information and a simulation event queue are generated through a virtual DTN scene module according to a preset DTN scene, a master control module selects simulation DTN node modules on the simulation workstation to simulate virtual DTN nodes, the simulation DTN mode modules carry out module communication according to simulation events, simulation running data are generated according to simulation running conditions, and the virtual DTN scene module calculates a network performance index value according to the simulation running data of all the simulation DTN node modules in the whole simulation running process. The information interaction of the control workstation and the simulation workstation is completed through the master control module and a controlled module in the simulation running process. The performance of a simulated multimode heterogeneous DTN can be actually reflected, and simulation verification on the large-scale multimode heterogeneous DTN can be carried out.

The invention discloses a testing device and method of safe gasbag fabric dynamic breathability that comprises valve, minitrim, manometer, Mylar, coupler, digital storage oscillograph, pressure sensor, plenum chamber, low-pressure chamber. The valve is connected with the plenum chamber via the minitrim and the manometer, the Mylar is set between the plenum chamber and the low-pressure chamber, the output of the low-pressure chamber is connected with the fabric to be measured. The valve is opened, the minitrim is adjusted to make the air come from the air compressor enter the plenum chamber slowly, the film is blasted, the valve is closed; the pressure sensor collects the time-varying signal of the plenum chamber and the low-pressure chamber, the signal is amplified by the coupler and then transferred to the digital storage oscillograph where it is transformed into digital signal, then the digital signal is sent to computer to be processed. The device has little volume, accurate measurement and simple operation.

The embodiment of the invention discloses a method and a device for generating simulated interference, which are used for obtaining the simulated interference which is consistent with the interference characteristics of real user equipment, accordingly, the performances of systems in different circumstances can be objectively reflected, and a technological assessment effect and the efficiency are improved. The method comprises the steps of: setting one or a plurality of simulated load templates, respectively carrying out interference characteristic parameter configuration on the simulated load templates, and using one simulated load template to simulate one or one type of interference with the same interference characteristics; and utilizing interference characteristic parameters which are configured on the simulated load templates to generate the simulated interference, and if a plurality of simulated load templates are set, polling the interference which is simulated and generated by the simulated load templates in a time domain and / or a frequency domain.

The present invention provides a method for carrying out positioning in-orbit test authentication based on a navigation satellite leakage signal. Firstly, an in-orbit test flight height is determined, the relative position relation among a detector, a navigation satellite and the Earth is calculated, the angle of an any position relative to Earth vector and detector vector of the navigation satellite is calculated according to the position relation of the detector, the navigation satellite and the Earth, and the visibility of the navigation satellite is judged. According to the navigation satellite visibility judgment result, the height range of boot working and boot time of a satellite-borne navigation receiver are determined, according to the navigation visibility judgment result, an in-orbit flight attitude is analyzed, and the wave beam angle range of a GNSS navigation receiving equipment receiving antenna is determined. The receiving condition of the navigation leakage signal and a navigation positioning result are recorded in an orbit test. The receiving ability of the navigation leakage signal of the GNSS navigation receiver and the influence on the navigation performance are compared and analyzed. The problems of the comprehensive functional performance testing of the navigation satellite leakage signal receiving equipment of deep-space exploration and high-Earth orbit satellite navigation satellites and the system design of positioning by using the navigation satellite leakage signal are solved.

The invention provides a performance testing method for a diesel oxidation catalyst (DOC). The performance testing method for the diesel oxidation catalyst (DOC) comprises the following steps that the concentration of hydrocarbon in tail gas exhausted by an engine is adjusted to the preset concentration; the tail gas which is adjusted to the preset concentration is pumped into the DOC, and catalytic conversion is performed on the hydrocarbon and carbon monoxide in the tail gas through the DOC; the inlet temperature and the outlet temperature of the DOC when the tail gas passes through the DOC are measured; the catalytic conversion characteristics of the DOC on the hydrocarbon and the carbon monoxide in the tail gas at the current inlet temperature are obtained according to the temperature difference between the outlet temperature and the inlet temperature of the DOC. According to the embodiment of the performance testing method for the diesel oxidation catalyst (DOC), a performance curve of the diesel oxidation catalyst (DOC) can be easily, accurately and objectively tested. The invention further provides a testing system for the diesel oxidation catalyst (DOC).

The invention relates to a method for accurately simulating multi-antenna effect when a wireless mobile terminal receives signals, which comprises the following steps: according to characteristics of a multi-antenna wireless mobile terminal antenna, determining spacial angular spectrum characteristic parameter values and a pore-wavelength ratio of the wireless mobile terminal antenna; according to the spacial angular spectrum characteristic parameter values and the pore-wavelength ratio, calculating a beta factor of a multi-antenna related matrix of the wireless mobile terminal; and accordingto the multi-antenna related matrix established by the beta factor, calculating received signals of the wireless mobile terminal by taking the multi-antenna related matrix as a part of a whole channel matrix. The method can more objectively reflect functions and performance of eUE, and provide guarantee for the development, testing and authentication of the eUE. Simultaneously, the method also has the advantages of low environmental requirements, moderate accuracy, and simpleness, convenience and easy implementation.

The invention discloses a flash memory erasure interrupt recovery test method and device, electronic equipment and a storage medium, and the method comprises the following steps: writing first data information into a non-operation area in a flash memory; writing second data information into an operation area in the flash memory; sequentially and circularly subjecting the selected sector of the operation area to the cyclic operation of erasing, blank checking, programming and checking, interrupting and recovering the erasing operation according to a set time interval in the erasing process, and detecting and recording whether the first data information of the non-operation area is changed or not at intervals; and when the cyclically executed operation of the selected sector reaches a set cycle index, ending the cycle. According to the method, the flash memory chip is cyclically tested for multiple times, and interruption and recovery operations cover the whole erasing process, so that the test data is representative, the performance of the flash memory chip can be accurately and effectively reflected, and meanwhile, the influence of erasing interruption and recovery operation accumulation on data in a non-operation area can be effectively and clearly reflected.

The invention relates to a method for measuring the interlocking capability of coarse aggregate, belonging to the technical field of road material design evaluation. The method comprises the following steps of: (1) filling coarse aggregate gravels into a rigid test barrel and ramming the coarse aggregate gravels; (2) penetrating a conical rigid squeeze head into the gravels at a certain loading speed rate, and recording a penetration depth H and a squeeze force (resistance) F suffered by the rigid squeeze head; and (3) working out a penetration power W=S0Fdh so as to evaluate the interlocking capability of the coarse aggregate. The method evaluates the interlocking capability of the coarse aggregate grading gravels by adopting the conical squeeze head penetration test, and effectively avoids the defects in the original test methods, i.e., aggregate mixing ratio is changed and real properties of design grading can not be correctly reflected due to serious aggregate breakage in the pressing-in process. In addition, the method takes energy indexes in terms of material deformation and stress into full consideration, adopts the penetration power to evaluate the interlocking capability of the coarse aggregate and more fully reflects the whole properties of the material when compared with simpler deformation index.

The invention discloses a test method for the endurance of a photovoltaic component in hot and humid environments. The method comprises the following steps: (1) performing outdoor exposing on the photovoltaic component to be tested, which is in the state of an open circuit; (2) exposing the photovoltaic component to be tested, which is exposed outdoors with ultraviolet light; (3) connecting the photovoltaic component to be tested, which is exposed with the ultraviolet light in a short-circuit manner, and testing the salt-spray corrosion of the photovoltaic component to be tested, which is in a short-circuit state; (4) testing the condensation humid of the photovoltaic component to be tested, on which the salt-spray corrosion test is performed; (5) testing an STH combined environment of the photovoltaic component to be tested, on which the condensation humid test is performed. The test method uses the true reaction service environment condition as the purpose, the illumination is introduced, besides, factors like seasons change and diurnal change are considered, and the light or hot or humid cycle tests are designed; the test method uses the representation the situation that the material is failed as the purpose, and combined tests, such as ultra violet resistance and salt fog corrosion tests are introduced, so that the durability of key materials of the photovoltaic component is checked comprehensively; the insufficiency of the standard test method can be overcome, and the using performance of the photovoltaic component in the long service term under the condition of humid and hot environments can be reflected.

The invention relates to a method and system for checking data accuracy of a substation on-line monitoring system. The method comprises: online monitoring data and off-line testing data of a same timepoint are obtained and a checking database is formed; at least one checking index is obtained based on the checking database; and the at least one checking index is compared with a set correspondingthreshold and an online monitoring system data accuracy determination result is generated. According to the checking method, the performance of the online monitoring system can be calibrated dynamically and the abnormal state of the online monitoring system can be discovered timely, so that the assistance is provided for dealing with a fault timely, preventing a missing report event, and evaluating the product performance of the online monitoring system manufacturer.

The invention provides a shaft sleeve wear test device and belongs to the technical field of mechanical performance test equipment. The shaft sleeve wear test device comprises a control panel, a testbench, a frame, a drive shaft for mounting a shaft sleeve, and a swing mechanism for driving the drive shaft to swing. The frame is arranged on the test bench. Both ends of the drive shaft are arranged on the frame. The part, equipped with the shaft sleeve, of the drive shaft is provided with a force applying mechanism. The control switches of the force applying mechanism and the swing mechanism are electrically connected with the control panel. The shaft sleeve wear test device can realistically simulate the working state of the shaft sleeve, drives the drive shaft to swing by the swing mechanism, applies an external force to the shaft sleeve part on the drive shaft by the force applying mechanism, simulates the actual working condition of the friction force of the shaft sleeve when an excavator accessory rotates around a connecting shaft in a working state, has more realistic test data than that obtained by a wear tester, can reflect the using performance of the shaft sleeve, and canensure that the wear resistance of the shaft sleeve meets a requirement.

An optical network unit (ONU) optical module comprises an optical device. The optical device comprises a laser, a wavelength division multiplexer (WDM), a receiver and a reflection device, wherein the laser is connected with the WDM, and the WDM is connected with the reflection device and the receiver. The laser is used for generating and sending optical signals. The WDM is used for separating the optical signals with different wavelengths. The receiver is used for receiving the optical signals. The reflection device reflects optical pulse signals generated by an optical time domain reflectometer (OTDR). The OTDR generates the optical pulse signals and sends the optical pulse signals to a main optical fiber located between an optical line terminal (OLT) and an optical divider and branch optical fibers located between the optical divider and the ONU optical module. The reflection device arranged at the ONU optical module end reflects the optical pulse signals generated by the OTDR, and the OTDR receives the optical pulse signals reflected back from the reflection device to detect the main optical fiber and the branch optical fibers.

The invention relates to a reactive optimizer evaluation method based on digital-analog mixed simulation. The reactive optimizer evaluation method comprises the steps of establishing a photovoltaic station equivalent model; collecting grid-connected point voltage and grid-connected current of the photovoltaic station, and outputting to a controller of the reactive optimizer; enabling the controller of the reactive optimizer to receive a dispatched and issued reactive instruction signal or a response signal transmitted according to state change of the power grid so as to work out a reactive instruction signal of each power generation equipment model in the photovoltaic station, and to transmit the reactive instruction signal to each power generation equipment in the photovoltaic station; after each power generation equipment receives the reactive instruction signal, making response according to the corresponding instruction signal, and recording the grid-connected point voltage and grid-connected current signal of the photovoltaic station to obtain static and dynamic reactive response curves of the photovoltaic station; and by analyzing each performance index of reactive response of the whole photovoltaic station, evaluating the control performance of the reactive optimizer. By adoption of the technical scheme, the difficulty that the existing test equipment cannot test the reactive optimizer of the photovoltaic station caused by limitation of capacity of the photovoltaic station can be solved.

The invention discloses a test method for a door opening early warning system, a test terminal and a storage medium, and the method comprises the steps: obtaining the position, vehicle speed, drivingdirection and CAN data of a test vehicle and the driving direction of a target vehicle in real time, and receiving the position and vehicle speed, transmitted by the target vehicle, of the target vehicle in real time; judging whether a preset early warning condition is met or not according to the currently acquired position, speed and driving direction of the test vehicle and the position, speed and driving direction of the target vehicle; when a preset early warning condition is met, judging whether a preset first-level early warning signal exists in the currently obtained CAN data or not; ifthe preset first-level early warning signal exists, determining that a door opening early warning system of the test vehicle is normal; and if the preset first-level early warning signal does not exist, determining that the door opening early warning system of the test vehicle is abnormal. The test method for door opening early warning system, the test terminal and the storage medium aim to solvethe problem that the test result cannot reflect the performance of the door opening early warning system under the real driving condition when the bottom layer code of the existing door opening earlywarning system is tested.

The invention discloses an automatic driving navigation positioning precision evaluation method based on map matching. The method comprises the following steps that: a vehicle-mounted sensor transmitsa vehicle real-time signal to a vehicle real-time signal collection module, the vehicle real-time signal collection module transmits a collected electric signal to a processing module, map data is transmitted to the processing module at the same time, the processing module transmits comparison data to a central processing unit through a transmission module, the central processing module processesdata comparison information in a centralized mode, takes out effective information and transmits the effective information to an evaluation module, a judgment module judges evaluation information generated by the evaluation module, a secondary judgment module judges information processed by the judgment module, the secondary judgment module transmits and feeds back a judgment signal to the central processing module, the central processing module integrates and processes information and transmits the information to a misjudgment signal detection module for final signal judgment, and finally, final result data is transmitted through a processing result feedback module. According to the invention, the positioning precision and safety of an automatic driving automobile can be improved.

The invention relates to a method for analyzing GSM network operation quality problem points and specifically relates to a method for finding GSM network operation quality problem points based on MR mass data. Through acquisition of MR mass data reported by a mobile station, a cell permeability matrix is generated so that problem points which affect the operation quality of a GSM network are found. Differences of the method for finding the GSM network operation quality problem points based on the MR mass data with the prior art are that statistical objects are not data which use a target cell as a service cell, but data when the downlink reception level intensity of the target cell is maximum; and then the cell permeability matrix is generated from the statistical result and then the problem points which affect the operation quality of the GSM network are analyzed through use of the cell permeability matrix. A proportion that a cell with the maximum downlink reception level intensity is not used as a service cell when the downlink reception level intensity of the target cell is maximum is analyzed so that performance of the target cell is reflected.

The invention relates to a method for measuring the interlocking capability of coarse aggregate, belonging to the technical field of road material design evaluation. The method comprises the following steps of: (1) filling coarse aggregate gravels into a rigid test barrel and ramming the coarse aggregate gravels; (2) penetrating a conical rigid squeeze head into the gravels at a certain loading speed rate, and recording a penetration depth H and a squeeze force (resistance) F suffered by the rigid squeeze head; and (3) working out a penetration power W0= the integral of Fdh from 0 to H so as to evaluate the interlocking capability of the coarse aggregate. The method evaluates the interlocking capability of the coarse aggregate grading gravels by adopting the conical squeeze head penetration test, and effectively avoids the defects in the original test methods, i.e., aggregate mixing ratio is changed and real properties of design grading can not be correctly reflected due to serious aggregate breakage in the pressing-in process. In addition, the method takes energy indexes in terms of material deformation and stress into full consideration, adopts the penetration power to evaluate the interlocking capability of the coarse aggregate and more fully reflects the whole properties of the material when compared with simpler deformation index.

The present invention relates to the automobile charging field, in particular relates to an working method of an automobile charging pile lightning arrester grounding pile detector which can measure the resistance value change during the whole thunder and lightning occurrence period and is accurate in measurement result. The automobile charging pile lightning arrester grounding pile detector comprises a main power supply module, a working power supply module and a detection module which are connected orderly, the detection module is connected with a lightning protection grounding device, the main power supply module is also connected with the detection module, and the main power supply module and the working power supply module separately supply power to the detection module. The working method of the automobile charging pile lightning arrester grounding pile detector of the present invention can more accurately determine whether the performance of the lightning protection grounding device satisfies the lightning protection requirements of the charging facilities.

The invention discloses a quality determination and identification method of a material for moxibustion therapy, and belongs to the field of traditional Chinese medicines and massive health. A thermal weight loss analyzer (TG) and a differential scanning calorimeter (DSC) and / or a synchronous thermal analyzer (TG / DSC) are adopted to detect thermal weight loss indexes and reaction heat release performance of the moxibustion material, and the moxibustion material is quantitatively identified and evaluated according to indexes such as weight loss ratio, weight loss rate, combustion duration, heat flow, combustion heat release, heat release proportion in different combustion stages and the like. The method is easy to operate, convenient and visual, essential characteristics of moxibustion material thermal therapy can be directly reflected, folium artemisiae argyi (moxa) can be accurately identified, and the defect of moxibustion material identification is overcome.

The method of the present invention proposes an on-orbit test verification method for positioning based on navigation satellite leakage signals. First, determine the flight height of the on-orbit test, calculate the relative positional relationship between the detector, the navigation satellite and the earth, and calculate the relative position of any position according to the positional relationship among the three. The angle between the earth vector of the navigation satellite and the detector vector is used to judge the visibility of the navigation satellite; according to the judgment result of the navigation satellite visibility, determine the altitude range and the startup time of the spaceborne navigation receiver, and according to the judgment result of the navigation visibility , analyze the flight attitude on orbit, and determine the beam angle range of the receiving antenna of the GNSS navigation receiving equipment; on-orbit test records the reception of navigation leakage signals and navigation positioning results; compare and analyze the receiving ability of GNSS receiver navigation leakage signals and its performance on navigation The method of the present invention solves the comprehensive functional performance test of the navigation satellite leakage signal receiving equipment of deep space exploration and high-orbit earth satellites and the system design problem of using the navigation satellite leakage signal for positioning.

The invention discloses a system, a device and a method for counting point-to-point protocol (PPP) negotiation states in a wireless system. The method comprises the following steps that: a base station controller intercepts a PPP negotiation packet of a user terminal; the base station controller analyzes a PPP negotiation process in the PPP negotiation packet and sends an analysis result to a call detail information recorder; and the call detail information recorder counts multiple kinds of state data of PPP negotiation. In the system, the base station controller for intercepting the PPP negotiation packet of the user terminal and analyzing the PPP negotiation process of the PPP negotiation packet, and the call detail information recorder for summarizing the analysis result of the PPP negotiation process and counting the multiple kinds of state data of the PPP negotiation in the wireless system are added on the conventional basis, so that the technical problem that the PPP negotiation success or failure condition caused by the wireless system cannot be counted in the prior art is solved, and the aim of comprehensively and accurately counting the multiple kinds of state data of the PPP negotiation in the wireless system is fulfilled.