73 results about "Volume testing" patented technology

A high volume testing/formatting process is provided for Universal Serial Bus-based (USB-based) electronic data flash cards (USB devices) that meets the increasing demand for USB electronic data flash cards (USB devices). A test host is simultaneously coupled to the multiple USB devices (e.g., using a multi-port card reader or a probe fixture), a controller endpoint value is read from each of the USB devices and verified with a known good value, and then testing/formatting is performed on each of the USB devices by writing predetermined data into each USB device in a pipelined manner, then reading out and testing the predetermined data. In one embodiment, the test host implements a special USB driver that blocks standard USB registration procedures upon detecting the plurality of USB devices. Control and/or boot code data are written onto the flash memory device (i.e., instead of being provided on a controller ROM).

The invention discloses a lithium ion battery health state estimation method and system based on a support vector machine. The method comprises the steps of determining input variables and output variables of support vector machine regression prediction; dividing the input variables and the output variables into a training set data set and a test set data set; performing regression model buildingon normalized training set data to obtain a regression function; substituting the test set data into a trained regression model, thereby predicting an electric quantity charged when constant current charging of a battery reaches a cut-off voltage; and fitting the electric quantity charged when the constant current charging reaches the cut-off voltage and current test capacity obtained after capacity testing, and substituting an electric quantity obtained by prediction based on test set data into a fitted equation to obtain current predicted capacity, so that a health state of the battery is estimated. The estimation method and system can be used for predicting the electric quantity charged when the constant current charging of the lithium ion battery reaches the cut-off voltage in variousconstant current charging environments, and has wide applicability.

The invention discloses a method and system for judging storage battery capacity and health, including determining capacity based on conductance test value of the battery. Conductance test adopts special instrument, conductance of each monomer battery is tested, the actual conductance and capacity of massive batteries in different types and different residual capacity are tested, correspondence distribution therein is obtained by statistics, according correspondence astringency is found, so as to obtain the correspondence of conductance and capacity of the battery of the type, and software is required to calculate astringency and distribution relation on massive detection data, and applicability of the rule thereof is improved along with increase of data to be tested, thus improving accuracy of judging. Besides, the judging only can determine the range of the capacity of the monomer battery instead of correcting to concrete capacity value. The invention has the application value in actual maintenance that time and work load for judging the range of capacity of battery are greatly reduced, the batter is not required to be charged or discharged, and no threat is produced to the operation safety of battery in the existing network.

A system and method for performing a test for characterizing high frequency operation of PCB boards. More particularly, a system and methodology is provided to implement a time-domain short pulse propagation (SPP) technique on the production line, on large, multi-layer, product-level PCB boards, for large volume testing, by people who are not familiar with advanced, delicate, measurement techniques, who need robust test facilities, and cannot afford the time or expense of other lab-type approaches.

The invention discloses an IEC (International Electrotechnical Commission) 61968-based power distribution network model interoperation and functional verification method. The method comprises the following steps of: a) modeling for the power distribution network IEC61968 standard through the primary equipment and the secondary equipment; b) implementing a communication function with a power distribution network main station through the transmission protocol of the 5-104 parts of the standards of power industry of the People's Republic of China; c) simulating the reporting abnormal conditions of the secondary equipment information; d) simulating the simulation run of the power distribution network, wherein an FTU (Feeder Terminal Unit) performs protection simulation, a switch performs reclosing simulation, a simulation pool finishes typical load curve edition and running management, and a simulation algorithm is responsible for overall running schedule of the power distribution network model, and analogue simulation of actual running state of the power distribution network; e) simulating fault and exception test scenes; f) testing terminal access capacity. The method provided by the invention is used for simulating the power distribution network in practical applications so as to improve the construction efficiency of the power distribution network and reduce the investment cost.

The invention belongs to the technical field of the lithium-ion power battery, and particularly relates to a liquid injection method of a lithium-ion power battery. The liquid injection method of the lithium-ion power battery comprises the following steps of: step one, injecting a liquid for the first time, putting an electrical core into a packaging shell, and injecting an electrolyte E1 containing a high-temperature additive A1 to carry out formation, air exhaust and volume testing; and step two, injecting a liquid for the second time, injecting an electrolyte E2 containing a high-temperature additive A2 after the volume testing, and then testing the voltage, the internal resistance and the K value of the battery. Compared with the prior art, the liquid injection method of the lithium-ion power battery provided by the invention utilizes electrochemical characteristics of the high-temperature additives containing functional groups of olefin and a two-time liquid injection mode to adjust the content of the high-temperature additives of the two-time injection liquid. The liquid injection method of the lithium-ion power battery not only prevents a compact SEI film from forming at the time of the initial charging, but also retains higher concentration additives in the normal use process of the electrical core. Under the condition of not enhancing the internal resistance of the electrical core, the high temperature storage performance of the battery is improved, and the service life of the battery is prolonged.

The present invention relates to a storage battery capacity testing and repairing device, in particular to a capacity testing and repairing instrument which uses constant-current discharge to test battery capacity and uses high-frequency pulse to repair storage batteries. The present invention introduces a microprocessor on the basis of the prior lead acid storage battery capacity testing and repairing instrument, and controls generated frequency, duty cycle, pulse strength and adjustable high-frequency pulse sequences through software so as to repair a storage battery. A digital storage battery capacity testing and repairing instrument comprises an AC/DC converting circuit, a DC converting circuit, a current-limiting circuit, a loading component, a relay, a constant-current discharge circuit, a microcontroller circuit, a key and a digital drive display circuit. The capacity testing and repairing instrument is very simple to operate and use, intuitive in data display, low in cost, good in repair effect, and fast to take effect, having great economic benefit and social environmental protection benefit in determining battery capacity and reducing total discard quantity of batteries.

A portable work capacities testing apparatus, and a method using that portable apparatus, are disclosed. The apparatus comprises a host computer 110, a dynamic strength and lifting device 120 releaseably interconnected with the host computer, a hand grip strength device 130 releaseably interconnected with the host computer, a finger pinch strength device 140 releaseably interconnected with the host computer, a forearm/wrist strength device 150 releaseably interconnected with the host computer, a handling/proprioception device 190 releaseably interconnected with the host computer, a finger flexion device 180 releaseably interconnected with the host computer, a whole body coordination device 170 releaseably interconnected with the host computer, and a strength push/pull/lift device 160 releaseably interconnected with the host computer.

The invention belongs to the technical field of storage batteries, and provides a stable capacity calibration method for a long-time stored retired lithium battery. The method comprises the steps: carrying out the activation processing of a battery cell at a small multiplying power after the appearance inspection and information collection of a long-time stored retired lithium battery cell; carrying out the room temperature capacity testing; collecting the capacity Q data and voltage V data in a room temperature capacity testing process, and drawing a charging capacity increment curve dQ/dV-Vmap; solving the difference of X-axis coordinate data corresponding to a peak value of the capacity increment curve in a former and latter testing process through combining with the charging capacityincrement curve, and determining whether the capacity value in the testing process is the stable value of the retired battery or not in a testing process according to the difference. The method solvesa problem that a conventional battery capacity calibration method is not accurate in the calibration of the capacity of the long-time stored retired lithium battery, and lays an application foundation for the safe and reliable stepped reuse of a subsequent retired battery.

The invention discloses a TD-S disturbance matrix building system based on MR (measurement reports). The TD-S disturbance matrix building system is characterized by mainly comprising data pre-processing submodules which are used for completely compensating a PccpchRSCP value of a main service cell, filtering the useless MRs, combining the same-frequency/different-frequency MRs, separating the MRs in the same system/different systems and the like. According to the TD-S disturbance matrix building system, volume testing data can be collected without special testing equipment and special testing persons, therefore, the cost can be remarkably reduced, the operational time can be shortened, and the limitation of a traditional method is effectively broken through.

The invention relates to a test calling method of concentrate system based on CDMA, which comprises following steps: 1, adding a one-key server at the network, and the mobile terminal or the network sends a concentrate test calling; 2, after the concentrate calling is built, the mobile terminals compete for communication right; 3, the successful mobile terminal generates data frame; 4, said data frame is transmitted as voice frame, and left mobile terminals receives and calculates said data frame and sends a result to the one-key server; 5, the successful mobile terminal releases the communication right in a certain time and triggering new communication competition. The invention can simulate mobile terminal to request communication right and send voice frame to other mobile terminals, and the receiver can calculate the error frame rate and time delay, etc to evaluate the network quality and process capacity test.

The invention discloses a volume control method. The method comprises the following steps: performing initial volume testing of various testing scenes under two use modes of a receiver and a head phone; fitting out a relation curve of the environment noise and the initial volume according to the testing result; collecting the current environment noise of the mobile terminal when a user is in a call; judging the current use mode of the mobile terminal; acquiring the corresponding initial volume from the relation curve according to the judgment result and the collected environment noise; and setting the call volume of the mobile terminal as the initial volume. The embodiment of the invention further discloses a mobile terminal and a computer readable storage medium. Therefore, the volume ofthe mobile terminal can be accurately regulated according to the located environment and habit of the user.

This invention relates to one rapid resolving photometric analysis water medium chemical oxygen volume testing method, which comprises the following steps: making H2SO4-H3PO4 mixture with proportion as 3:1-5:1; making catalytic agent MnSO4-CuSO4 with weight proportion as1:1-1:3; adding catalytic agent into the mixture of 100ml with catalytic agent weight as 0.25-0.40g with oxidation K2Cr2O7 concentration as0.10-0.25mol/L to make resolving liquid; adding the liquid into the dirty water with proportion 1:2-1:3 with resolving temperature as 150-170DEG C and time as10-20min; Measuring the water medium oxygen volume by adopting photometric meter online monitor through Cr on 590-610nm light.

The invention discloses a method and a device for testing the capacity of a game server. The method comprises the following steps of obtaining message indication information, wherein the message indication information is used for indicating the game server of a current game to receive messages sent from different players in the current game in a preset time period; according to the message indication information, determining average message sending frequency and the message proportion of the messages under different target function scenes, wherein the average message sending frequency is used for indicating an amount of messages sent to the game server by a single player in unit time, and the function scene in the game comprises a plurality of target function scenes; according to the average message sending frequency and the message proportion of the messages under the different target function scenes, testing the capacity of the game server to obtain a test result, wherein the test result comprises the maximum value of the amount of players who are simultaneously on line. Therefore, the problem of an inaccurate test result of the capacity of the server can be solved.

A high volume testing/formatting process is provided for Universal Serial Bus-based (USB-based) electronic data flash cards (USB devices) that meets the increasing demand for USB electronic data flash cards (USB devices). A test host is simultaneously coupled to the multiple USB devices (e.g., using a multi-port card reader or a probe fixture), a controller endpoint value is read from each of the USB devices and verified with a known good value, and then testing/formatting is performed on each of the USB devices by writing predetermined data into each USB device in a pipelined manner, then reading out and testing the predetermined data. In one embodiment, the test host implements a special USB driver that blocks standard USB registration procedures upon detecting the plurality of USB devices. Control and/or boot code data are written onto the flash memory device (i.e., instead of being provided on a controller ROM).

The invention provides a capacity testing method based on a secondary radar interrogator. The capacity testing method comprises the steps: according to externally set initial parameters, a testing mode is selected to generate simulation targets in sectors; when a test is started, the current distance between each simulation target and the interrogator is calculated according to real-time parameters of the simulation targets in the single sectors, when the decoding gate count is matched with the current distance, encoding is triggered to conduct target encoding single-cycle time counting, whenthe target encoding single-cycle time count is equal to 10, the pulse encoding timing sequence is started to be responded according to a standard A/C mode, and ASK codes are output; and according to the sum and difference of a real target relative to the system orientation, and the phase characteristic of a control wave beam, the sum and difference of the current simulation target, control channelvideo signals and symbol bits are generated in a simulation mode and output. Fully digitized target aircraft response signal simulation is conducted through FPGA software, and thus the testing cost can be lowered; and a plurality of target aircrafts can be simulated to meet the need of saturation testing of the processing capacity of the secondary radar interrogator.

The invention relates to a system for testing file system capacity based on virtualization and a method thereof. The system comprises a capacity testing managing module, a virtual storage module, a physical storage module and a mapping managing module, wherein the capacity testing managing module is used for establishing the virtual storage module for testing the file system capacity under the tested file system, and managing the file system to create, read and delete files on the virtual storage module; the virtual storage module is used for virtually storing the file written in by the capacity testing managing module; the physical storage module is used for actually storing the file written in the virtual storage module by the capacity testing managing module; and the mapping managing module is used for dynamically managing the mapping from the virtual storage module to the physical storage module in an operation system block device drive layer, and directly mapping the file operation of the virtual storage module into the file operation to the storage unit of the physical storage module so as to guarantee that the virtualized virtual storage module can be normally read and written, thereby effectively testing the file system capacity.

The invention relates to a method for testing the support system of mobile communication service, wherein it comprises mobile service support system, mobile sell service support system, mobile group service support system, mobile personal large-client system, and database. And the invention is characterized in that: the testing method comprises load test, strength test, capacity test, while the test range is divided into forward table, middle element and database. The invention provides a testing method which can be used in RMOSS, BBOSS, PRM systems, and it can obtain the test data and analysis via inquires.

The invention discloses a photoelectric type high backfill earthwork settling volume testing device and a mounting method thereof. The photoelectric type high backfill earthwork settling volume testing device comprises a top surface settling testing device and a soil-in settling testing device, wherein a horizontal laser standard of the top surface settling testing device is mounted on a testing pedestal a at a relatively static position; a light transmitting filament type displacement sensor of the top surface settling testing device is mounted on a testing pedestal b at the top surface of a high backfill earthwork; the horizontal laser standard emits horizontal laser to the light transmitting filament type displacement sensor; the light transmitting filament type displacement sensor outputs a high backfill earthwork top surface settling volume signal; the soil-in settling testing device is arranged on the testing pedestal b; a circular protection pipe is arranged in a vertical drill hole of the high backfill earthwork below the testing pedestal b; an unfolding anchor head is arranged in soil at a testing point along the central line outside the pipe bottom of the protection pipe. The settling volume testing device has the characteristics that the range is large, the precision is high, no interference exists in engineering construction, the operation is convenient, the measurement data is output in real time and the like, and is a device which is capable of testing the settling volumes of the top surface of the high backfill earthwork and the inner testing point.

The system includes up going data source, NodeB device, and user terminal to be tested. The data source is in use for generating up going data. NodeB device includes following parts: TRX port in use for receiving the said up going data, and sends wireless signal frame; decoder module in use for decoding the up going data to form protocol packet of up going data channel; IUB interface board in use for receiving the protocol packet of up going data channel, and using a loop back wire to loop back protocol packets of down going data channel; encoder in use for encoding protocol packets of down going data channel to a wireless signal frame, which is sent from transmitting TRX port. The user terminal is in use for receiving frames sent from transmitting TRX port, and detecting the signal. Features are: simple test environment, simple operation. The invention is applicable to validate capacity, specification of NodeB and test activity for NodeB.

The invention discloses a device for testing electrical performance in a transformer substation of an electric power system, and particularly discloses a remote intelligent maintaining device of a transformer substation storage battery. The remote intelligent maintaining device comprises an upper managing machine and five loops composed of a microprocessor, a voltage transducer, a signal conditioning circuit, a power driving circuit, a photo-coupling circuit, an insulated gate bipolar translator (IGBT) tube and a positive temperature coefficient (PTC) resistor. After adopting the structure, the storage battery remote control volume is tested and remote maintenance is performed by utilizing an existing computer technology and a real-time Ethernet communication technology and combining the five loops. By means of arrangement, safe constant current discharge can be achieved, data acquisition is real-time and quick, remote automatic control of storage battery volume testing is achieved, field operation is not required, checking discharge work can be carried out to multiple transformer substations at the same time, fatigue caused by arriving and departing a field is avoided, a large amount of manpower and material resources are saved, and the work efficiency is greatly improved.