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44results about How to "Improve test results" patented technology
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Autonomous evolution type 5G protocol fuzzy test system based on large language model
PendingCN121967284ARealize full automationRealize intelligenceInference methodsTransmissionLinguistic modelTest execution
The invention discloses an autonomous evolution type 5G protocol fuzzy test system based on a large language model, and the system comprises a protocol extraction unit which employs the large language model to analyze a 5G protocol specification document, and extracts structured protocol knowledge elements containing a message format, state machine logic and parameter constraints; the vulnerability analysis unit generates a potential vulnerability description list through big language model reasoning based on the knowledge elements; the test strategy generation unit drives a large language model to generate a targeted test case based on protocol knowledge, vulnerability description and historical test knowledge in the dynamic test knowledge base; the test execution unit executes the use case and captures a result; and feeding back an analysis result of the internalization unit, extracting a causal rule, generating new test knowledge and feeding back the new test knowledge to the knowledge base. According to the system disclosed by the invention, test targets and resources can be autonomously scheduled according to continuous updating of the knowledge base, so that the test process has an iterative optimization capability, and full-process automation and intelligentization of 5G protocol fuzzy testing are realized.
Owner:北京明博信安信息技术有限公司 +1
Seed coating agent film layer strength testing machine
ActiveCN224122343UImprove test resultsavoid interferenceMaterial strength using tensile/compressive forcesCleaning using gasesHydraulic cylinderAgricultural engineering
The utility model belongs to the technical field of testing, and particularly relates to a seed coating agent film layer strength testing machine which comprises a machine body, a machine table, two supporting columns, a top plate, a hydraulic cylinder, a connecting plate, a testing disc and a testing pressing head, the machine table is fixed to the top of the machine body, the bottoms of the two supporting columns are fixed to the two sides of the machine table, the top plate is connected with the supporting columns, and the hydraulic cylinder is connected with the testing disc. The hydraulic cylinder is fixed at the bottom of the top plate, the telescopic end of the hydraulic cylinder is connected with the connecting plate, the test pressure head is fixed at the bottom of the connecting plate, a plurality of electric push rods are mounted at the bottom of the test pressure head, the bottom of each electric push rod is connected with a test pressure plate, and a sensor is arranged at the bottom of each test pressure plate. According to the utility model, each seed coating agent on the supporting groove can be pressed and tested by the test pressure head, so that the test effect of the test machine on a seed coating agent film layer is improved, and the deviation of the strength test result of the seed coating agent caused by non-uniform stress of the seed coating agent due to the size difference of the seed coating agent is prevented.
Owner:BENXI ZHUANGMIAO AGROCHEM TECH & DEV
Method and apparatus for salt spray testing of a fast heat dissipation oriented router housing
PendingCN122591529AImprove test resultsImproved temperature control stability
The application relates to the technical field of salt spray testing, in particular to a salt spray testing method and equipment for a rapid heat dissipation router shell, which comprises the following steps: obtaining the initial weight of the router shell; collecting air pressure data, liquid level drop rate data and temperature data in a salt spray testing machine in real time; obtaining a parameter amplitude index of each collection period by analyzing the discrete degree and fluctuation similarity degree of the air pressure data and the liquid level drop rate data and combining the first mutation time, temperature change amplitude and discrete degree of the temperature data, so as to adjust the proportional coefficient in the next collection period and then complete the whole salt spray testing; obtaining the weight of the router shell again, and obtaining the salt spray testing result of the router shell according to the weight difference of the router shell before and after the salt spray testing. The proportional coefficient is adaptively obtained, so that the temperature stability in the salt spray testing process is maintained, and the salt spray testing effect of the router shell is improved.
Owner:DONGGUAN CITY JIANG LIN HARDWARE IND CO LTD
Chip testing system, method and tester
This disclosure relates to the field of integrated circuit testing, providing a chip testing system, method, and testing machine. The chip testing system includes a sorting machine, a first testing machine connected to the sorting machine, and a second testing machine connected to the first testing machine. The sorting machine sends chip test signals to the first testing machine, indicating the test position of the chip under test (DUT). The first testing machine receives the chip test signals and, in conjunction with the second testing machine, completes the testing of the DUT at the test position, feeding back the test results from the first testing machine and at least one second testing machine to the sorting machine. The combined use of the first and second testing machines allows for simultaneous testing of a larger number of DUTs, increasing the testing capability and efficiency of the chip testing system.
Owner:ACTIONS ZHUHAI TECH CO
A photosensitive drum coating insulation resistance testing device
ActiveCN224651439URealize the effect of insulation testingadjust balance
The utility model relates to the technical field of coating insulation test equipment, and disclose a kind of photodrum coating insulation resistance test equipment, including bearing plate, bearing plate upper portion is equipped with main controller, main controller upper portion is equipped with insulation resistance tester, bearing plate upper portion is equipped with two position adaptation's first fixed plate and second fixed plate, and the clamping unit for clamping the both ends of photodrum is equipped on first fixed plate and second fixed plate, and the drive motor for driving photodrum rotation is equipped in first fixed plate side.In the utility model, photodrum is driven to rotate by the output end of drive motor, photodrum can drive charging roller to rotate after rotating, opens insulation resistance tester, selects suitable voltage gear and resistance gear, after resistance stabilizes, it can read number record this stable value, and the value is the insulation resistance value of the coating of photodrum to be tested, to realize the effect that the surface coating of photodrum can be tested for insulation.
Owner:SHANGHAI AG PHOTOSENSITIVE MATERIALS CO LTD
Large language model security test method and system based on small language cross-language attack
PendingCN121997330APrecise deliveryIntelligent cross-language attackPlatform integrity maintainanceLanguage understandingLinguistic model
The invention discloses a big language model security test method and system based on a small language cross-language attack. The method comprises the steps of constructing a small language selection strategy library, designing a cross-language semantic conversion engine, constructing a multi-dimensional language barrier, implementing a self-adaptive language switching mechanism and establishing a cross-language security evaluation system. According to the method, through dual language barriers of minority language input and Chinese output, a traditional single-language security detection system is effectively bypassed, attack content is presented in a minority language form, but a target model is forced to reply with Chinese, and a language understanding gap is established between input and output; the dynamic language switching strategy realizes intelligent cross-language attack, and the attack method can be adjusted in real time according to the defense response of the target model. According to the method, the adaptability, the concealment and the overall test effect of attacks are remarkably improved, and a systematized and efficient technical means is provided for large model security assessment in a multi-language environment.
Owner:BEIJING LINGYUN SHUKE INFORMATION TECH CO LTD
LCD test fixture
ActiveCN224203534Ustable supportAvoid problems such as deformationStatic indicating devicesNon-linear opticsEyepieceEngineering
The utility model discloses a liquid crystal display (LCD) testing jig which comprises a base and an upper cover capable of covering the base, a placing groove used for placing an LCD is formed on the base, a lower polaroid is attached to the bottom of the placing groove, a light source is arranged below the lower polaroid, a hard transparent plate is arranged on the upper cover, an upper polaroid is attached to the hard transparent plate, and the light source is arranged below the upper polaroid. When the upper cover and the base are in a covering state, the upper polaroid is located on the face, facing the containing groove, of the hard transparent plate, and the upper cover is provided with a probe assembly used for being electrically connected with the LCD. According to the utility model, due to the existence of the hard transparent plate, when the eyepiece is used for observation during testing, the hard transparent plate can well support the eyepiece, the problems of deformation and the like of the upper polaroid are avoided, and the distance between the upper polaroid and the LCD below the upper polaroid can be well adjusted by setting the thickness of the hard transparent plate; therefore, the distance between the upper polaroid and the LCD can be closer to the actual situation, and the test efficiency and the test effect can be improved.
Owner:SHENZHEN TXD TECH CO LTD
Test method and device of synthetic aperture radar image understanding model, and storage medium
PendingCN121955903AHigh interference accuracyModerate level of interferenceWave based measurement systemsAlgorithmSynthetic aperture radar
The invention discloses a test method and device for a synthetic aperture radar image understanding model and a storage medium. The method comprises the steps of executing differentiable transformation according to an original radar echo signal and preset scene parameters, and determining a differentiable radar echo image; according to a preset adversarial parameter initial value, establishing a multi-scale adversarial parameter logic; and according to the multi-scale adversarial parameter logic, the constraint set corresponding to the synthetic aperture radar and the differentiable radar echo image, loop iteration is carried out to determine comprehensive loss, gradient information and optimized multi-scale adversarial parameter logic. According to the test method, the SAR image is converted into the differentiable image, a constraint basis is provided for the image understanding model, then the logic model is established, and a solution mode for the adversarial sample is further iterated based on the constraint basis and the logic model; the adversarial sample which is high in interference accuracy, moderate in interference degree and capable of comprehensively aiming at the image understanding model can be generated, and the test effect of the image understanding model is improved.
Owner:HARBIN INST OF TECH
Pressing mechanism, testing device, and working machine
PendingCN122259916AImprove test resultsElectrical testingMeasurement instrument housingTemperature controlPower efficient
The present application provides a kind of crimping mechanism, testing device and working machine, including installation unit, joint unit and temperature control unit, installation unit is equipped with holder, for assembly joint unit, joint unit is equipped with crimping tool can crimp electronic component, temperature control unit includes temperature controller and intermediate piece, temperature controller is assembled in joint unit, for temperature control crimping tool and electronic component, intermediate piece is equipped with transmission surface, fitting part and multiple side transmission surfaces, and with transmission surface is assembled in the bearing surface of crimping tool and can make straight heat exchange, in the fitting part of intermediate piece is fitted electronic component by crimping tool driving, not only make the bearing surface of crimping tool and the top surface of electronic component heat exchange, but also make multiple side transmission surfaces of the fitting part of intermediate piece around boundary and multiple side surface of electronic component lateral heat exchange, and then rapidly improve the temperature control efficiency of electronic component.
Owner:HON PRECISION INC
Wear resistance testing device and testing method for luggage pull rod
PendingCN121830355Aprevent dislocationhigh strengthMachine part testingInvestigating abrasion/wear resistanceClassical mechanicsRepeat testing
The invention belongs to the technical field of wear resistance testing, and particularly relates to a wear resistance testing device and method for a luggage pull rod. Comprising a test box; a notch is formed in the test box; a box body is placed in the test box; the box body is positioned in the notch; a pull rod is slidably arranged on the side of the box; a position control clamping unit is arranged on the test box; the position control clamping unit comprises a first base; the two first bases are both mounted at the bottom of the test box; the two ends of the position control lead screw are connected to the opposite faces of the two first bases correspondingly. Two thread areas are symmetrically arranged on the position control screw rod; the thread directions of the two thread areas are opposite; the double-action testing device is arranged on the testing box; the double-action testing device comprises a limiting chute which is arranged at the bottom of the testing box in a penetrating manner; the limiting chute extends to the inner bottom surface of the test box; the pull rod can be smoothly pulled by the device, the device is prevented from being clamped due to the self-locking function of the device in the testing process, the testing effect and efficiency of the device are improved, and the limitation of the device in practical application is reduced.
Owner:JIANGXI XINXIN TECH CO LTD
Simulation test bed device for wet clutch brake
ActiveCN224189525UImprove test resultsImprove test accuracyMachine part testingStructural engineeringControl theory
The utility model discloses a wet clutch brake simulation test bench device, comprising a pedestal, two sides of the pedestal are respectively provided with a mounting flange and a test assembly, the mounting flange is vertically arranged and is used for vertically fixing a brake, the pedestal is provided with a transmission unit, the transmission unit is connected with the test assembly and the brake, and the test assembly is used for vertically fixing the brake. The test assembly is used for applying a load to the brake; according to the wet clutch brake simulation test bed device, the base is adopted, a brake can be vertically arranged, the actual installation state can be simulated, the transmission unit and the test assembly are arranged, loads can be applied to the single side of the brake, the actual working condition can be simulated, and the test effect and the test precision are improved.
Owner:WUXI DEHUA MACHINERY
A torsional deformation testing apparatus
The utility model discloses a kind of anti-torsional deformation test equipment, including test table and bolt fixed in the left side of test table for providing power servo motor;Further include: the output end of the servo motor is fixed with one end of threaded rod, and the other end of threaded rod extends to the inside of test table and constitutes rotating connection structure with test table, and the outside of threaded rod is also fixed with gear;The upper end of the gear is provided with torsion mechanism, and the clamped metal component is rotated to drive torsion by connecting ring;The torsion mechanism includes gear ring and connecting ring, wherein gear ring is fixed in the left side of connecting ring. The anti-torsional deformation test equipment not only greatly improves the angle of torsion, and then improves the test effect, so that the result of test is more accurate, and it is convenient to clamp metal component, and metal component can be stretched test, so as to increase the functionality, also need not other test equipment to test alone, save cost.
Owner:YUNNAN KAIYUE GEOTECHNICAL MATERIALS CO LTD
Empty PIN test tool
ActiveCN224066855Ureduce sheddingImprove test resultsElectrical testingMeasurement instrument housingStructural engineeringMechanical engineering
Owner:HUANGSHAN GUANGYUAN OPTOELECTRONIC TECH CO LTD
Source measurement circuit and voltage output method
PendingCN121955486Areduced settling timeImprove output slew rateCurrent/voltage measurementElectrical measurement instrument detailsControl theoryPhysics
The invention relates to a source measurement circuit and a voltage output method, the source measurement circuit comprises a voltage output module, an acceleration module, a current detection module and a load module, the voltage output module is connected with the load module through the current detection module, and the acceleration module is connected with the current detection module in parallel; the voltage output module is used for outputting a first voltage signal, and the first voltage signal represents the voltage at the two ends of the load module; the acceleration module is used for accelerating the process that the first voltage signal reaches the target voltage; and the acceleration module is in a conducting state in the change process of the first voltage signal, and is in a cut-off state after the first voltage signal reaches the target voltage. According to the source measurement circuit, the acceleration module accelerates the process that the voltage at the two ends of the load module reaches the target voltage, the output slew rate is improved, and the establishment time of the output voltage is shortened.
Owner:STELIGHT INSTR CO LTD
Cable low-temperature test box
ActiveCN224095577UThe test effect is goodComprehensive test dataMaterial strength using tensile/compressive forcesMaterial strength using steady bending forcesGear wheelTest chamber
The utility model discloses a cable low-temperature test box, relates to the technical field of cable test equipment, and aims to solve the technical problems that in the prior art, only bending and stretching tests are adopted for low-temperature tests of cables, the cables are often twisted and stretched in the installation, laying and use processes, and the processes are not specially tested during the tests, so that the test time is shortened. Test data are imperfect, and the test effect is not good enough. The low-temperature test box body comprises a test work box, two groups of torsion mechanisms are arranged in the test work box, each torsion mechanism comprises a fixed seat, a fastener and a servo motor, a driving end of each servo motor is fixedly connected with a worm, a large gear coaxially connected with the fixed seat is arranged in the test work box, and the large gear is coaxially connected with the fixed seat. The lower portion of the large gear is connected with a small gear in an engaged mode, one side of the small gear is coaxially connected with a worm gear, and the worm gear is connected with the worm in an engaged mode.
Owner:JIANGTONG SHENGHUA (SHANGHAI) CABLE CO LTD
An optical receiving end bandwidth test method, system and related device
The application discloses an optical receiving end bandwidth test method, system and related equipment, which first performs coarse scanning by a first sweep frequency step and divides the amplitude-frequency response area, then determines a smaller second sweep frequency step according to the transition core area attenuation slope, adopts differential sampling in different areas, effectively reduces frequency point redundancy, shortens test time consumption, accurately captures the amplitude-frequency rapid attenuation characteristics, balances test efficiency and accuracy, and adapts to production line batch test requirements. By combining real-time signal-to-noise ratio adjustment sampling time and Fourier transform average number, the influence of various interference factors can be inhibited; by peak detection, roll-off characteristic determination, matching of a suitable low-pass model for global fitting, random sampling errors can be eliminated, the standard amplitude-frequency response curve can be fitted to the actual characteristics, and the stability and repeatability of bandwidth determination are improved. The method realizes accurate, efficient and stable test of the optical receiving end bandwidth through the organic combination of adaptive non-uniform sweep frequency and model fitting, and improves the test performance.
Owner:HONG KONG UNIV OF SCI & TECH (GUANGZHOU)
Network protocol vulnerability detection method and system based on message sequence attribution optimization
This invention provides a network protocol vulnerability detection method and system based on message sequence attribution optimization, addressing the problems of existing gray-box fuzzing methods for network protocols in three aspects: message sequence attribution strategy, message sequence evaluation and selection, and selection of mutation point locations in message sequences. The method includes: acquiring the target code of the protocol under test; using the protocol under test for communication; collecting communication traffic; generating an initial message sequence set; performing fuzzing on the protocol under test; collecting code coverage information and status feedback information generated during the runtime of the protocol entity under test, and determining whether the currently tested message sequence is an interesting message sequence; and then performing the next round of fuzzing. This invention is applicable to all network protocol fuzzing tools based on AFLNET improvements and has advantages such as simple implementation principle, strong code coverage and vulnerability discovery capabilities.
Owner:HANGZHOU DIANZI UNIV
Display module testing device structure
ActiveCN224287292UImprove test efficiencyMeet the needs of useNon-linear opticsComputer hardwareTest efficiency
This utility model discloses a display module testing device structure, including a frame and movable frames, probes, and a PCB board mounted on the frame. The frame has a testing area, the probes are mounted on the movable frames, and there are two or more movable frames that can be moved back and forth in the testing area. A first testing position is formed between the rear movable frame and the front movable frame, and a second testing position is formed between the frontmost movable frame and the frame. The PCB board is located inside the frame and is connected to the probes of the movable frames. In this way, the position of the movable frames in the testing area can be adjusted according to the specifications of different display modules, thereby adjusting the testing specifications of the first and second testing positions. This allows multiple display modules of different specifications to be tested simultaneously at their respective testing positions, improving testing efficiency, meeting user needs, and having a wide range of applications.
Owner:SHENZHEN XIANHANGRUI TECHNOLOGY CO LTD
A wear resistance test device for wear resistant engine piston coatings
This utility model relates to the field of piston wear resistance testing technology and discloses a wear resistance testing device for engine piston coatings. The device includes a workbench with a support plate mounted at the rear of its top. A drive cylinder is mounted at the center of the front end of the support plate. Several test sleeves are arranged at the top of the workbench and in front of the support plate. A movable plate is mounted at the end of the drive push rod of the drive cylinder, and several connecting rods are connected to the bottom of the movable plate. A piston body is housed inside each test sleeve, and a piston rod is connected inside the piston body. The device utilizes an insulation chamber, a temperature detector, an electric telescopic rod, and a transparent baffle to facilitate the testing of the wear resistance strength of the piston wear-resistant coating at different temperatures, improving testing effectiveness and allowing for comparison with wear resistance at room temperature or high temperature. It also enables multiple pistons to move rubbed within the test sleeves, improving testing efficiency.
Owner:RIZHAO DOUBLE DRIVE MASCH MFG CO LTD
HTTP log playback-based boost test method and device, and computer equipment
ActiveCN116225959BImprove test efficiencyImprove test resultsError detection/correctionRelational databasesTest efficiencyTarget database
Embodiments of the present application relate to the technical field of testing, and disclose a pressure boosting test method and device based on HTTP log playback, computer equipment and a computer readable storage medium, the method comprising: forming HTTP log data at recording time when it is detected that the current system initiates each preset operation instruction to a target database table in a database according to a target HTTP request; replacing a playback primary key value with a recording time primary key value according to the HTTP log data at playback time; determining a dependency relationship between each target HTTP request and a dependency relationship between each preset operation instruction corresponding to the HTTP request; re-arranging each HTTP request according to the dependency relationship between each target HTTP request and the dependency relationship between each preset operation instruction corresponding to the HTTP request, forming a concurrent test strategy; and performing stress testing on the current system according to the concurrent test strategy. The embodiments of the present application effectively improve the test efficiency and test effect of pressure boosting test.
Owner:GUOSEN SECURITIES
A method for detecting and handling a fault of a redundant wheel speed signal of a vehicle
This invention discloses a method for detecting and handling faults in redundant wheel speed signals, specifically relating to methods for detecting and handling faults in aircraft anti-skid brakes. It addresses the problem of insufficient coverage of wheel speed sensor fault modes in existing aircraft braking systems. In this invention, valid aircraft taxiing speed signals and wheel speed signals are acquired. The difference between each wheel speed signal and the aircraft taxiing speed signal is calculated, and the aircraft taxiing speed signal is divided into speed signal intervals. Within each speed signal interval, the presence of a fault in the corresponding wheel is determined based on the difference between the wheel speed signal and the aircraft taxiing speed signal. By collecting redundant wheel speed signals from the aircraft braking system using wheel speed sensors and incorporating the aircraft taxiing speed signal, the status of redundant wheel speed signals can be comprehensively assessed, further improving the testability of the braking system and ensuring its safe operation.
Owner:XIAN AVIATION BRAKE TECH
Performance test bench for high-voltage distribution box
ActiveCN224066839Uincrease contactImprove test resultsElectrical testingEducational modelsElectrical connectionStructural engineering
The utility model provides a high-voltage distribution box performance test bench, which relates to the technical field of high-voltage distribution box performance test and comprises a rack body and a distribution box placed on the rack body. The frame body is provided with a panel and an adjusting structure, the panel is provided with a test backboard and a plurality of detection terminals, and the plurality of detection terminals are electrically connected with the test backboard; the distribution box is provided with a plurality of interfaces, and each interface is connected with a corresponding detection terminal through a cable. A through groove is formed in the placing surface of the rack body; by arranging the adjusting structure, the test effect of the rack on the high-voltage distribution box and the stability of the detection terminal connection of the high-voltage distribution box performance test rack in the teaching process are improved, and the use in the teaching process is facilitated.
Owner:ZHENGZHOU WANTONG AUTOMOTIVE VOCATIONAL TRAINING SCHOOL CO LTD
Accelerated aging test device for fuel cell sealing structure
PendingCN121994610AClose to real working conditionsImprove test resultsMaterial strength using tensile/compressive forcesFuel cellsAccelerated aging
The invention relates to the technical field of battery detection, in particular to a fuel cell sealing structure accelerated aging test device which comprises an upper pressing plate and a bottom plate, the upper pressing plate and the bottom plate are rectangular plates with the same shape and size, and placing groove sets are formed in the sides, close to each other, of the bottom plate and the upper pressing plate; the multiple containing groove sets are arranged on the side edges of the bottom plate and the upper pressing plate. A first mounting cavity and a second mounting cavity are formed in the upper pressing plate and the bottom plate, the first mounting cavity and the second mounting cavity are formed below the containing groove set, the first mounting cavity is formed in the side, close to the outer edge, of the upper pressing plate and the bottom plate, and mounting grooves are formed in the edges of the upper pressing plate and the bottom plate; feeding assemblies are arranged in the first mounting cavity and the second mounting cavity and used for guiding media into the containing groove sets. According to the invention, more accurate prediction of the effective life of the fuel cell sealing material is realized by realizing a test environment which is relatively close to the real working condition of the fuel cell.
Owner:HYDROGEN NEW TECH (SHENZHEN) CO LTD
Method for preparing nanoscale porous vanadium-doped bismuth oxide and photoanode
ActiveCN117509729Breduce compoundingreduce recombination rateVanadium compoundsBismuth vanadateLanthanum
The present disclosure relates to a preparation method of a nano-porous doped bismuth vanadate and a photoactive electrode, and relates to the technical field of doped bismuth vanadate preparation. The method comprises: 1. obtaining a first solution: obtaining a first citric acid solution, adding a bismuth source, a lanthanum source and a molybdenum source to obtain the first solution; the amount of substance of citric acid is N, and the amounts of substance of bismuth element, lanthanum element and molybdenum element are x, y and z respectively, so that N:(x+y+z)=(1.5-4):1; obtaining a second solution: obtaining a second citric acid solution and adding a vanadium source to obtain the second solution; the amount of substance of vanadium element is A, so that x:y:z:A=(6-9):(0.5-2):(0.5-2):10, and x+y+z=A; 2. adding the second solution to the first solution in batches to obtain a third solution; 3. adjusting the pH value of the third solution to 4-8 and drying; calcining the dried product to obtain the nano-porous doped bismuth vanadate.
Owner:XIAN RARE METAL MATERIALS RES INST CO LTD
Compression and decompression test platform and method based on special hardware, virtual electronic equipment and storage medium
PendingCN121935089AShorten the verification cycleMinimize performance bottlenecksFaulty hardware testing methodsMemory systemsTerm memoryInterface (computing)
The invention discloses a compression and decompression test platform and method based on special hardware, virtual electronic equipment and a storage medium, the platform is deployed in a computing system comprising a special compression and decompression hardware unit, and a kernel mode driving module is in communication connection with the special compression and decompression hardware unit. The user mode test program module is connected with the kernel mode drive module through a character device interface; registering a character device to create an interface with the dedicated compression / decompression hardware unit; in response to a user mode instruction received through character equipment, distributing a source data buffer area and a target data buffer area through a DMA-BUF HEAP mechanism; establishing a zero-copy shared memory channel of a user mode and a kernel mode; writing the to-be-tested data into a source data buffer area; allocating a shared memory buffer area and managing for compression and decompression operations by utilizing a DMA memory management mechanism of the kernel; and determining a test mode, processing the target and outputting a test result. Repeated development of test tools is avoided, and cost is saved.
Owner:PHYTIUM TECH CO LTD
Test fixture
ActiveCN224169608UAffect test resultsProblems affecting test resultsMachine part testingWork holdersTest articleClassical mechanics
The utility model discloses a test fixture, and belongs to the field of atomization device testing. The test fixture comprises a support frame assembly which comprises a connecting rod; the clamping assemblies are connected to the connecting rod and are distributed at intervals in the extending direction of the connecting rod, each clamping assembly is slidably connected with the connecting rod and is configured to clamp a packaging bag of an object to be detected, and the distance between every two adjacent clamping assemblies can be adjusted; therefore, the packaging bags of the adjacent to-be-detected objects are arranged at intervals. According to the invention, the test effect of the to-be-tested object can be improved.
Owner:HG INNOVATION LTD
Vibration testing device for plate-free printing carton
The utility model relates to the technical field of packaging carton testing equipment, in particular to a vibration testing device for a plate-free printing carton. Comprising a rack, a driving piece installed on the lower portion of the rack, a rotary table driven by the driving piece to rotate, a plurality of amplitude adjusting pieces arranged on the rotary table, a supporting piece arranged on the upper portion of the rack and connected with the upper end face of the rotary table in a sliding mode, and a tray supported by the supporting piece and located on the upper side of the rack. The multiple amplitude adjusting pieces are arranged in the sliding stroke of the supporting piece. The amplitude adjusting part comprises a fixed plate, an adjusting plate, a rotating shaft and an adjusting assembly, the fixed plate is fixedly arranged, the head end of the fixed plate is hinged to the head end of the adjusting plate through the rotating shaft, and the adjusting assembly is arranged between the fixed plate and the adjusting plate and used for adjusting the included angle between the fixed plate and the adjusting plate; according to the utility model, the anti-vibration capability of the carton under a plurality of different road conditions can be tested, and the vibration test performance is improved.
Owner:ZHEJIANG WUYI ZHANGSI PACKAGING IND CO LTD
Strength testing device for research and development of rock wool sandwich panel
ActiveCN224286545UUniform deliveryreduce frictionMaterial strength using tensile/compressive forcesCompressive strengthUltimate tensile strength
The utility model provides a strength testing device for research and development of a rock wool sandwich panel, and relates to the technical field of performance testing of building materials. The workbench is of a square structure, and a supporting plate is arranged below the workbench. A circular matching hole is formed in the central position of the workbench; four long-strip-shaped adjusting holes are distributed in the surface of the workbench in a divergent mode. According to the utility model, by arranging the centering adjusting mechanism, the pressure is ensured to be uniformly transmitted along the vertical direction of the sample, and the large error of a test result caused by non-uniform stress distribution due to eccentric loading is avoided; the problems that when an existing strength testing device is used for detection, if the position of a sample is not subjected to centering adjustment and loading force deviates from a center line, the sample can bear a certain bending moment (bending stress), and consequently the testing result is lower than the real compressive strength are solved; and manual centering depends on the experience of an operator, so that multiple test results may fluctuate.
Owner:SUZHOU YONGSHENG FIREPROOF MATERIAL CO LTD
Test method, system, device and storage medium for energy storage system protection function
ActiveCN121679203BImprove test resultsAchieve zero accident rate testingResource allocationElectrical testingData packReliability engineering
The application discloses a test method, system, device and storage medium for a protection function of an energy storage system. A configuration file, fault data and verification data are obtained, the configuration file is parsed and configured, and a simulation test scenario is obtained; based on the fault data, a sending queue of data packets with timestamps is constructed; the sending queue is injected into multiple target energy storage subsystems in a multi-thread parallel manner, and a scheduling process of the target energy storage subsystems is started to be listened to; based on the listening content and the verification data, a test evaluation result is obtained from response time, cooperative protection gap, success rate and consistency evaluation. In the application, a real fault dynamic characteristic is simulated to simulate a virtual fault, an intrinsically safe protection function test is realized without loss, and full-scene automatic verification from a single fault to system linkage is realized. The fundamental breakthrough eliminates physical risks and improves the test effect of the protection function of the energy storage system.
Owner:CSCEC SMART PARKING TECH CO LTD
Capacitance-based magnetic field device and test system using the same
ActiveCN112397272BAvoid limited energy storageAvoid discharge level fluctuation problemsElectromagnets without armaturesCapacitanceSignal monitoring
The application discloses a kind of magnetic field devices based on capacitance, comprising: high voltage power supply module of charging to the discharge module of capacitor, after charging, the pulse signal of pulse generator device generates and controls the discharge process of capacitor charging and discharging module, waveform conditioning and protection module, electric signal monitoring and matching module, current commutation module, the magnetic field generation module of the corresponding magnetic field signal of the pulse excitation formed by capacitor discharge.The amplitude of capacitor charging voltage and the pulse width of trigger pulse control pulse signal characteristics, and then control the strength and duration of magnetic field signal, the device can realize controllable intensity high, time domain characteristics good magnetic field signal, while realizing the protection of device, signal monitoring and magnetic field direction change and other functions, solve the problem that current in electromagnetism related experiment is difficult to obtain stable superhigh superfast magnetic field, can provide various types of magnetic field signal, carry out various magnetism and spin electronics research experiment.
Owner:BEIHANG UNIV +1