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37 results about "Stress testing" patented technology

Stress testing (sometimes called torture testing) is a form of deliberately intense or thorough testing used to determine the stability of a given system or entity. It involves testing beyond normal operational capacity, often to a breaking point, in order to observe the results.

Myocardial perfusion image classification method and system based on single resting state

PendingCN121053442AImage enhancementImage analysisVoxelMyocardium region
The invention discloses a myocardial perfusion image classification method and system based on a single resting state, and belongs to intelligent analysis and auxiliary diagnosis of medical images. The method comprises the following steps: acquiring SPECT three-dimensional voxel data in the single resting state, and performing image reconstruction by adopting an OSEM algorithm; segmenting the myocardial region by using a pre-trained U-Net convolutional neural network, and mapping a segmentation result to a two-dimensional polar coordinate graph conforming to the AHA17 segment model; extracting a multi-dimensional feature vector; a single-phase inference model MSR-Net based on biphase labeling is constructed, in the training stage, segment classification labels of resting-load biphase images are used, in combination with segment consistency indexes, label correction is carried out, and in the inference stage, only resting state features are input, and then a pixel-level perfusion defect distribution diagram and ischemia scores of 17 myocardial segments can be output. Quantitative and segmental evaluation of myocardial ischemia can be completed by using single resting state imaging, exercise or drug load examination is avoided, and cardiovascular adverse events and complication risks are reduced.
Owner:THE FIRST PEOPLES HOSPITAL OF CHANGZHOU

Hydraulic fracturing ground stress testing device and testing method

The invention discloses a hydraulic fracturing ground stress testing device and method, and relates to the technical field of hydraulic fracturing, and the hydraulic fracturing ground stress testing device comprises testing equipment. According to the hydraulic fracturing ground stress testing device and testing method, through the design of testing equipment, a water source enters the water pump pipe from the water inlet pipe, water flow is sprayed outwards from the nozzle in the water pump pipe, so that the hydraulic fracturing effect is achieved, the rotating mechanism is driven to rotate through flowing of the water flow, and the effect of cleaning the inner wall of a pipeline through friction is achieved; the rubber pipe is extruded by sliding the packing top block on the packing base, so that the rubber pipe is extruded and deformed to be attached to the surface of soil, the packing effect on a test part is achieved, the silica gel column is arranged in the rubber pipe, the silica gel column has a certain supporting effect and prevents a part from being concaved inwards and collapsed, and the rhombic film is arranged on the outer side of the rubber pipe, so that the rubber pipe is prevented from falling off. Therefore, surface friction force of components is increased, service life of the components is prolonged, and friction load is dispersed.
Owner:ZHEJIANG CHEM ENG GEOLOGICAL SURVEY INST CO

A stress testing system for heat shrink sleeves

The present application relates to heat shrink sleeve test technical field, especially to a kind of stress test system of heat shrink sleeve, comprising: test module, to carry out stress test to heat shrink sleeve;Detection module is connected with the test module, including with the clamping device is connected to detect the area of wear area in clamping surface visual sensor;Clamping adjustment module is connected with the test module, to determine the micro-tilt angle compensation of clamping surface according to wear area area proportion in clamping surface;Sampling adjustment module is connected with the detection module and the clamping adjustment module respectively, to determine the weight distribution coefficient of low temperature sampling point according to the difference between actual temperature and target temperature in heating process;Cooling adjustment module is connected with the test module and the sampling adjustment module respectively, to determine cooling rate limit value according to cooling pipe surface dew coverage area proportion.The present application improves the stress test stability of heat shrink sleeve.
Owner:JILIN HUIHUA PIPELINE ENG CO LTD

A sample loading fixture for stress testing

This invention discloses a sample loading fixture for stress testing, relating to the field of stress testing technology. The invention includes a base plate with several support components mounted on its bottom surface. A slide rail mechanism is fixed to the top of the base plate, and a support assembly and a testing assembly are connected to the top of the slide rail mechanism. The support assembly and the testing assembly are interconnected. A positioning seat is mounted at one end of the top surface of the base plate. A positioning component is provided on one side of the support assembly, and a pressure plate mechanism is provided on the other side. An adjustment mechanism is provided between the testing assembly and the base plate. A position counting component is provided on one side of the slide rail mechanism. This invention, through a stepped planning of the distance the support assembly is pulled, and by comparing the tensile force display of the force gauge and the tensile stress reading of the stress sensor, forms multiple regular test control groups. Coupled with a high-precision testing environment, this enables comprehensive measurement of tensile stress data and completes a comprehensive and accurate recording of the tensile strength of the substrate glass.
Owner:RAINBOW (HEFEI) LIQUID CRYSTAL GLASS CO LTD

Electroplating equipment and electroplating liquid stress testing method

The invention discloses electroplating equipment and an electroplating liquid stress testing method. The electroplating liquid stress testing method is applied to electroplating equipment comprising an electroplating bath and an auxiliary bath, and the electroplating bath is communicated with the auxiliary bath. The electroplating solution stress testing method comprises the following steps: placing the testing device connected with the cathode and the anode in the auxiliary tank, and testing the stress of the electroplating solution. Therefore, the electroplating liquid stress testing method at least has the following advantages that the electroplating liquid does not need to be exported, at least the exporting step can be omitted, the testing steps are simple, and the flow is short; a temperature control system or a heat source does not need to be designed, so that the detection cost can be reduced, the temperature during testing can be maintained without adjusting the temperature control system, and the production efficiency can be improved; the electroplating liquid does not need to be led out before and after electroplating, stress testing can be conducted even in the electroplating process, and flexibility is high; the environment for testing the stress of the electroplating liquid is closer to the actual production environment of products such as probes, and the testing precision is high.
Owner:MAXONE SEMICON CO LTD

Stress test system for heat-shrinkable tubing

The invention relates to the technical field of heat-shrinkable tubing testing, in particular to a stress testing system of a heat-shrinkable tubing, which comprises a testing module used for testing the stress of the heat-shrinkable tubing; the detection module is connected with the testing module and comprises a visual sensor which is connected with the clamping device and is used for detecting the area of a wear region in the clamping surface; the clamping adjusting module is connected with the testing module and is used for determining the micro dip angle compensation amount of the clamping surface according to the area proportion of the abrasion area in the clamping surface; the sampling adjustment module is respectively connected with the detection module and the clamping adjustment module and is used for determining a weight distribution coefficient of a low-temperature sampling point according to the difference quantity between the actual temperature and the target temperature in the heating process; and the cooling adjustment module is respectively connected with the test module and the sampling adjustment module and is used for determining a cooling rate limit value according to the proportion of the condensation coverage area on the surface of the cooling pipe. According to the invention, the stress test stability of the heat-shrinkable sleeve is improved.
Owner:JILIN HUIHUA PIPELINE ENG CO LTD

Method for improving stress test precision of crack flexibility method

The invention relates to a method for improving stress test precision of a crack flexibility method in the field of stress test. The method comprises the following steps: step 1, cutting a stress test sample from a material to be tested; 2, pasting a strain gauge at a preset position on the surface of the sample I; 3, after the sample is clamped, a wire cutting machine is adopted to conduct progressive cutting along a preset path, the machine is stopped after cutting is conducted to the preset depth every time, strain data are recorded, and the average value of sample strain is calculated; 4, simulating a linear cutting process through finite element software, and calculating a flexibility matrix C; and 5, calculating the residual stress distribution of the sample based on the flexibility matrix C and the strain average value. According to the method, the condition number of the coefficient matrix can be effectively and controllably reduced by constructing the specific scaling matrix and carrying out row scaling processing on the solving equation; and the morbidity of solving the equation set is fundamentally improved.
Owner:LUOYANG INST OF SCI & TECH

Risk stress testing method and device, storage medium and electronic equipment

This invention provides a risk stress testing method, apparatus, storage medium, and electronic device. The method includes: responding to a risk stress test command, determining the risk event to be tested and its scenario information; determining the data type of the risk event; the data type is either continuous or discrete; if the data type of the risk event is continuous, acquiring the corresponding measurement model; the measurement model is established based on historical risk data and historical scenario information of the risk event; inputting the scenario information into the measurement model to obtain the output result of the measurement model; determining the occurrence frequency of the risk event and the single-event loss value of the risk event based on the output result; and determining the stress test result of the risk event based on the occurrence frequency and single-event loss value of the risk event. This method can accurately obtain stress test results.
Owner:CHINA CONSTRUCTION BANK

A data processing method and related apparatus

This application discloses a data processing method, which includes: performing a stress test on a first application based on a first request volume to obtain a first test result, wherein the first request volume is the concurrent request volume in each time unit of the stress test; determining a first increment based on the first test result; and performing a stress test on the first application based on a second request volume to obtain a second test result, wherein the second request volume is the sum of the first request volume and the first increment. In this way, by determining the concurrent request volume for the next stress test based on the test result of the previous stress test, the problem of inaccurate judgment of the stress test inflection point caused by excessive pressure increase can be effectively avoided, while also solving the problem of excessively long measurement time caused by insufficient pressure increase, thereby improving the efficiency of stress testing.
Owner:HUAWEI CLOUD COMPUTING TECHNOLOGIES CO LTD +1

A pressure testing method and device combining performance bottleneck positioning

The embodiment of the application provides a stress testing method and a stress testing device combined with performance bottleneck positioning, the stress testing device comprises a preset performance diagnosis tool, and the method comprises the following steps: in the case that a performance bottleneck exists in the process of performing stress testing on a target service, determining a target instance in which the target service is deployed; a performance diagnosis thread corresponding to the preset performance diagnosis tool is arranged in the target instance; calling the performance diagnosis thread to perform performance diagnosis on the target instance, obtaining a diagnosis result, and the diagnosis result is used for positioning the performance bottleneck reason of the target service.
Owner:BEIJING WODONG TIANJUN INFORMATION TECH CO LTD +1

Large medical model testing method and device

The invention provides a medical big model testing method and device, and relates to the technical field of data processing, and the method comprises the steps: constructing a dynamic medical knowledge graph, calculating the knowledge half-life period of a medical knowledge entity based on the dynamic medical knowledge graph, and obtaining a medical big model according to the relation among the current time, the release time attribute and the knowledge half-life period; calculating the timeliness score of each medical knowledge entity, screening the medical knowledge entities with the timeliness scores lower than a preset timeliness threshold value, and generating a dynamic test case; inputting the dynamic test case into a to-be-tested medical large model to perform a multi-modal timeliness test, screening out a high-value failure sample from a test result, and extracting an output conclusion of the medical large model for the high-value failure sample, performing semantic matching on the output conclusion and each historical version of medical knowledge entity in the medical knowledge entity version sequence, and positioning a failure knowledge node; and performing a pressure test on the medical large model.
Owner:ANHUI IFLYHEALTH CO LTD

Underground complex stress testing method

The invention discloses an underground complex stress test method, and mainly solves the technical problem of uncertainty of a test result due to the fact that complex stress cannot be completely avoided when an underground stress test is carried out in the prior art. The method comprises the following steps: preparing a protolith sample which is the same as a to-be-measured geomedium, and then installing three stress meters in the protolith sample to obtain a test sample; calibrating the test sample through a quasi-static calibration experiment to obtain a static coefficient matrix of the test sample; calibrating the test sample through a dynamic calibration experiment to obtain a dynamic coefficient matrix of the test sample; placing the test sample in a to-be-tested geomedium, and acquiring and outputting an actually measured stress matrix of the three stress meters through a data acquisition instrument; and calculating the actually measured stress matrix in combination with a calibration result to obtain a real stress matrix of the to-be-measured geomedium loaded on the test sample, thereby completing the test of the underground complex stress. The method can improve the accuracy of stress testing.
Owner:NORTHWEST INST OF NUCLEAR TECH

A method and apparatus for stress testing of geological formations with a high permeability

Embodiments presented provide for stress testing of downhole wireline formation testing equipment. Certain embodiments provide for stress testing of geological stratum which exhibit high permeability. A method to perform a stress test is disclosed. The method may comprise conveying a bottom hole assembly on a drill pipe to a testing location and setting at least two packers at the testing location. The method may comprise performing an injection of a fluid obtained from the drill pipe into the testing location and stopping the injection of the fluid from the drill pipe. The method may comprise performing at least one breakdown cycle injection with the fluid from the drill pipe and determining when the at least one breakdown cycle injection with fluid results in an open reservoir. The method may comprise performing an injection followed by falloff cycles using surface based pumps and deflating the at least two packers.
Owner:SCHLUMBERGER TECH CORP +3

Test fixture for stress test

The utility model relates to the technical field of mechanical property testing devices, and particularly discloses a test fixture for stress testing, which comprises a first adapter sleeve, a first hemispherical mounting piece, a second adapter sleeve and a second hemispherical mounting piece. The first hemispherical mounting piece and the second hemispherical mounting piece are both arranged to be hemispherical, the size of the first hemispherical cavity is matched with the size of the first hemispherical mounting piece, and the size of the second hemispherical cavity is matched with the size of the second hemispherical mounting piece. Compared with the prior art in which a U-shaped opening test fixture is adopted, the test fixture for stress test has the advantages that additional bending stress is effectively prevented from being added in the loading process, and the test fixture is simple in structure, convenient to operate and high in test efficiency. Therefore, the actual test force value is larger than the set value, and the test is easy to be invalid.
Owner:SHANGHAI AIRCRAFT MFG

A clamping device for stress testing

The utility model relates to stress test technical field provides a clamping device for stress test, including main part assembly: the main part assembly includes fixed plate and mounting plate, the mounting plate fixed connection is in the both ends of fixed plate, protection assembly: protection assembly includes U -shaped frame, guard board, plugboard and guide block, guide groove, observation window, the U -shaped frame fixed connection is in the front end of fixed plate, and the guard board sets up in the front end of fixed plate, and the plugboard fixed connection is in the rear portion of guard board, and the guide block fixed connection is in one end outside of plugboard. The utility model discloses through setting up protection assembly, through the auxiliary cooperation between U -shaped frame and guard board, can pull out guard board outward, and then through observation window observation makes the guide block slide in the inside of guide groove, can assist staff when using clamping device, provides the function of protection for it, avoids the waste material splashing and causes the staff to be mistaken for injury.
Owner:SHENZHEN ZHEYUAN PRECISION IND CO LTD

Link performance analysis method and device based on full-link pressure measurement and medium

The invention provides a link performance analysis method and device based on full-link pressure measurement, and a medium, and the method specifically comprises the steps: obtaining a pre-constructed full-link pressure measurement system; based on the full-link pressure measurement system, pressure measurement processing of a single link is carried out, a performance bottleneck analysis result of the single link is obtained, and the pressure measurement processing comprises step pressurization processing and limit performance pressure measurement processing; and after the performance bottleneck analysis of the single link is completed, carrying out full-link pressure measurement processing based on the full-link pressure measurement system to obtain a performance bottleneck analysis result of the full link. According to the invention, on the basis of carrying out pressure measurement on a single link, full-scene multi-link pressure measurement can be completed. According to the invention, on the basis that a full-link pressure measurement system obtains Agent performance data, the bottleneck point in the link is integrally analyzed in combination with a middleware key data item in a monitoring system. According to the invention, data sources in a full-link pressure measurement system are expanded, and a feasible link bottleneck analysis mode and method are provided.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

A stress testing system, method, and product for a Ceph cluster

The application provides a stress test system, method and product of a Ceph cluster, and belongs to the technical field of stress test. The system comprises a distribution module configured to distribute connection configuration information of a Ceph cluster to be tested or any stress test instruction to a plurality of stress testers; a stress test module configured to generate a stress test instruction for the Ceph cluster to be tested, the stress test instruction comprising at least one of a Mon stress test instruction, a Mgr stress test instruction, a MDS stress test instruction and an OSD stress test instruction; and a monitoring module configured to monitor cluster state information of the Ceph cluster to be tested during stress test and component states of each component in the Ceph cluster to be tested. The application aims to improve the accuracy of stress test of the Ceph cluster.
Owner:CHINA TELECOM CLOUD TECH CO LTD

Stress tester

The utility model discloses a stress tester, which comprises a case, an analyzer arranged at the upper part of the case, a carrier stage arranged on the upper surface of the case, and clamping mechanisms arranged on the two sides of the carrier stage, the clamping mechanism comprises a first clamping block and a second clamping block which are distributed on the two sides of the object stage. The first connecting rod and the second connecting rod are each provided with a first synchronous belt wheel, a driving assembly is arranged in the machine box, and the driving assembly drives the first connecting rod and the second connecting rod to rotate synchronously. Through the arrangement of the clamping mechanism, the first clamping block and the second clamping block are used for clamping the two ends of the glass bottle, one end abuts against the bottle bottom, the other end is inserted into the bottle opening / abuts against the bottle opening, and the two ends rotate coaxially, so that the glass bottle is driven to rotate, and technicians do not need to manually rotate the glass bottle when comprehensively detecting the internal stress of the glass bottle; and the rotation speed is constant and controllable.
Owner:谱弦仪器(江苏)有限公司

Front-end pressure testing connector for assisting tile-type action

The utility model belongs to the technical field of medical instruments, and particularly relates to a front-end pressure testing connector assisting tile-type action, which comprises a blowing nozzle shell, an air inlet is arranged on the surface of the top of the blowing nozzle shell, and an air outlet is arranged on the surface of the bottom of the blowing nozzle shell. The connector at the bottom end of the blowing nozzle shell is connected with the connector of the pressure gauge pipeline, then the blowing nozzle shell is attached to the face of a patient, gas exhaled by the patient can be conveyed to the pressure gauge through the blowing nozzle shell, and therefore the force exerting degree of the patient during tile-type action can be estimated, and the patient can do the tile-type action conveniently. In this way, a patient can conveniently conduct blowing action through the blowing nozzle shell with the large air inlet size, convenience is brought to tile-type action testing, then an operator can wear and fix the blowing nozzle shell on the head of the patient through the elastic binding band, and the situation that after the hand, pressing the blowing nozzle shell, of the patient is loosened carelessly, the blowing nozzle shell is damaged is avoided. And the blowing nozzle shell directly falls off, so that the stability of the test joint in use is ensured.
Owner:包头市中心医院

System for testing stress while drilling

The present application relates to a kind of stress testing systems while drilling, including first installation hole, second installation hole, third installation hole and fourth installation hole being opened on the side wall of drill collar;Wherein: first installation hole and second installation hole are located in the first cross section perpendicular to the direction of drill collar axis, and the included angle between the axis of first installation hole and the axis of second installation hole is 180 degrees;Third installation hole and fourth installation hole are located in the second cross section perpendicular to the direction of drill collar axis, and the included angle between the axis of third installation hole and the axis of fourth installation hole is 180 degrees, the included angle between the axis of first installation hole and the axis of third installation hole is 90 degrees;First installation hole, second installation hole, third installation hole and fourth installation hole are respectively installed with a sensor module.The setting of installation hole and sensor module in the present application can be used to measure drill collar torque, bending moment and WOB, and it is convenient to more comprehensively understand the downhole stress condition of drill collar.
Owner:CHINA OILFIELD SERVICES LTD

Risk early warning method, device, equipment and medium

The embodiment of the invention provides a risk early warning method and device, equipment and a medium, and relates to the technical field of artificial intelligence. The method comprises the following steps: acquiring risk factors; inputting the risk factor and a preset investment target combination into a large language model to obtain an output risk analysis result and a first risk level; according to a risk analysis result, combining current market data to generate a pressure test scene; inputting the pressure test scene into the large language model to obtain an output trend prediction result; according to the trend prediction result, determining a risk influence result of the pressure test scene on the preset investment target combination and a second risk level; and generating a risk early warning result according to the risk analysis result, the first risk level, the risk influence result and the second risk level. Therefore, according to the method, risk early warning can be carried out when the risk factors (no risk event occurs) are obtained, so that market participants can perceive potential risk hidden dangers in advance, and effective countermeasures can be taken in advance.
Owner:太保科技有限公司

Diaphragm testing device and diaphragm testing method

This application discloses a diaphragm testing device and a diaphragm inspection method. The diaphragm testing device includes: a first cover plate and a second cover plate disposed opposite to each other, forming an installation space between the first and second cover plates for clamping an annular diaphragm to be tested; a sealing gasket disposed on the first cover plate for pressing the circumferential edge of the diaphragm to be tested against the second cover plate, and sealing the diaphragm between the first and second cover plates via the sealing gasket; a pressure application component disposed at the central hole of the diaphragm to be tested for pressing the diaphragm to be tested against the first cover plate; and fasteners for fastening the first and second cover plates together. Multiple pressure input ports are spaced apart from the center to the edge on the first and / or second cover plates, and these pressure input ports are used to introduce pressure during pressure testing of the diaphragm to be tested. This device can adapt to the testing of diaphragms of different sizes, achieving unified diaphragm testing and improving the economy of diaphragm testing.
Owner:HUNAN SHANSHUI PUMP CO LTD

Sterile liquid pressure testing device

The utility model relates to the technical field of bladder pressure testing, and discloses a sterile liquid pressure testing device which comprises a liquid inlet pipe, the lower end of the liquid inlet pipe is connected with a storage box body, and a detection installation structure is installed at the lower end of the storage box body. The detection installation structure comprises a spring installation pipe, a limiting ring, a conical spring, a first sealing plate, a supporting rod, a second sealing plate and a measuring assembly. According to the detection installation structure, the measuring assembly does not make direct contact with urine, the urine is blocked through cooperation of the arranged storage box body and the first sealing plate, the first sealing plate, the supporting rod and the second sealing plate are pushed to move downwards under the pressure of the urine, and the urine can be detected through the change of the air pressure between the second sealing plate and the measuring pipe. When the urine pressure is reduced, the reset effect of the first sealing plate can be ensured and the resilience force of the first sealing plate can be increased through the arranged spring tube and the conical spring when the urine pressure is reduced.
Owner:TIANJIN GUANGYITONG TECH CO LTD

Empennage bearing pressure test device capable of continuously testing

The invention relates to the technical field of empennage pressure testing, and discloses a continuous empennage bearing pressure testing device, which comprises a mounting plate and a fixing unit arranged at the upper end of the mounting plate, and is characterized in that the fixing unit comprises a clamping part and a swinging part which are arranged at the upper end of the mounting plate; the clamping part is arranged and fixed through the connecting plate at the lower end of the empennage of the airplane, so that the situation that a final test result is affected due to the fact that a traditional clamp or a rope is directly clamped on the surface of the empennage is avoided, and clamping of the clamping part on the empennage can simulate the installation mode of the empennage of the airplane to a large extent; the stability of the aircraft empennage in the test process is guaranteed to be the same as that in a normal use state, the accuracy of the aircraft empennage pressure test structure is further improved, and the degree of freedom of motion of the aircraft empennage in the pressure test process is improved.
Owner:SHENZHEN FEIHANG JINGGONG TECH CO LTD

Central venous pressure monitoring system and monitoring method

The invention relates to the technical field of central venous pressure testing, in particular to a central venous pressure monitoring system and method. The central venous pressure monitoring system comprises an infusion bag, a pressurizing bag, an infusion tube, a pressurizing tube, a first pressure testing element, a second pressure testing element, a three-way element, a four-way element, a central venous puncture catheter and testing equipment, the first pressure testing element and the second pressure testing element are fixed to the left end and the right end, flush with the fourth rib, of the midaxillary line of the human body, and the first pressure testing element is located on the right side of the human body. The first pressure testing element, the second pressure testing element, the first flow controller and the second flow controller are all in communication connection with the testing equipment; and the test equipment obtains the central venous pressure through a formula Po = R * P2 + (1-R) * P1. According to the technical scheme, the pressure measuring process is simple, the labor cost is reduced, and the use experience feeling of a patient is improved.
Owner:THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV

System pressure testing method and device, equipment and storage medium

The invention discloses a system pressure test method, device and equipment and a storage medium. The method comprises the following steps of: pre-defining a pressure test scene, a multi-level performance index threshold value and an associated fusing control action to complete strategy configuration; and then automatically triggering the execution of the test task according to a preset timing strategy. In the pressure measurement process, the system collects performance index data in real time, compares the performance index data with multi-level threshold values, and automatically triggers corresponding fusing control actions (such as early warning, dynamic pressure degradation or immediate test termination) based on a comparison result, so that intelligent protection of the tested system is realized. And finally, automatically generating and sending a notification according to the fusing event or the test result. According to the invention, unattended operation and intellectualization of the whole process from task triggering, execution monitoring to safety intervention of the pressure test are realized, and the test efficiency and the system safety are remarkably improved. The method can be widely applied to the technical field of testing.
Owner:E-SURFING DIGITAL LIFE TECH CO LTD

Pressure test method and device for insulating stool

The invention discloses a pressure test method and device for an insulating stool, and relates to the technical field of insulating stool pressure test, and the method comprises the steps: S10, placing a to-be-tested insulating stool on a transmission assembly, and conveying the insulating stool to a pressure test position in a first direction through the transmission assembly; s20, controlling a pressure applying assembly to apply pressure in the second direction to at least one standing step of the insulating stool; wherein the pressure applied by the pressure applying assembly is used for simulating the foot pressure state when the operator stands, and the second direction is perpendicular to the first direction; and S30, working states of the transmission assembly and the pressure applying assembly are controlled through the control box, and test data of the insulation stool in the pressure test process are recorded. According to the invention, the problems of low pressure test accuracy and low test efficiency in the pressure test of the insulating stool in the prior art are solved.
Owner:GUANGZHOU HENLEE SAFETY TEST TECH +1

OBU automatic distribution and recovery method, system and device

The application belongs to the technical field of OBU automatic distribution, and relates to an OBU automatic distribution and recovery method, system and equipment, which comprises the following steps: a user initiates a claim or return order containing an OBU type through an ETC applet, and synchronizes to an ETC self-service distribution platform. The platform pre-processes according to the order type: when a claim order, based on the spatial topology perception of the OBU automatic distribution equipment, searches for the storage unit mapped with the OBU type and locks it; when a return order, verifies the warranty information. After user authentication, the platform issues an instruction: claim to open the locked unit to distribute the OBU; return to open the recovery port, and perform multispectral imaging and radio frequency stress testing on the recovered OBU, combine the anti-disassembly switch state to output a state authentication code, and open the mapped unit to replace after verification. The equipment returns the execution result, and the platform updates the order, inventory and life cycle archives. The application realizes the integration of OBU self-service distribution and warranty replacement, and improves the operation efficiency and equipment safety.
Owner:ZHEJIANG EXPRESSWAY INTELLIGENT TOLL COLLECTION OPERATION SERVICE CO LTD

Reel stress testing device

The invention relates to the technical field of testing devices, in particular to a reel stress testing device which comprises a testing table, and the top end of the testing table is provided with a supporting mechanism, a clamping and rotating mechanism, a defect detection mechanism and a compression resistance detection mechanism. The clamping rotating mechanism comprises two clamping plates, circular grooves are formed in the ends, close to each other, of the two clamping plates, rotating discs are rotationally connected to the inner walls of the two circular grooves, and protruding discs are fixedly connected to the ends, close to each other, of the two rotating discs; conical rubber sleeves for increasing friction force are fixedly connected to the outer walls of the two protruding discs, arc-shaped winding drums are arranged on the outer walls of the two conical rubber sleeves, and the rotating disc is used for clamping the arc-shaped winding drums; stress can be prevented from being concentrated at the edge or the middle part of the winding drum during detection, influence on a detection result is prevented, meanwhile, fragment splashing caused by local damage of the arc-shaped winding drum under the action of pressure is avoided, potential safety hazards are reduced, and safety is improved.
Owner:XUZHOU TIANTAI MACHINERY MFG

Pressure testing device for injection molding shell

An embodiment of the utility model provides a pressure testing device for an injection molding shell, which comprises a support frame, a testing platform, a feeding device and a pressurizing device, the pressurizing device comprises a power device, an output end of the power device is provided with a lower pressing plate, the lower pressing plate is opposite to the feeding device, the feeding device comprises a feeding sliding seat, and the feeding sliding seat is provided with a pressing plate. A pressure bearing plate is arranged at the upper end of the feeding sliding seat, a tool clamp is arranged at the upper end of the pressure bearing plate, the tool clamp is installed on the pressure bearing plate of the feeding device, and the pressure bearing plate installed at the upper end of the feeding device is pulled out of the pressurizing device through the feeding device so that the tool clamp can be disassembled and assembled. Before testing and after testing can be carried out outside the testing area of the pressurizing device, the situation that workers are injured or a shell to be tested is damaged due to the fact that a switch is accidentally touched is avoided, personal safety is further improved, psychological pressure of the workers is reduced, the tool clamp is pulled out of the testing area through the feeding device for operation, the space is larger, and the working efficiency is improved. The operation is more convenient, and the working efficiency is further improved.
Owner:DONGGUAN VINO ELECTRONIC TECH CO LTD