35results about How to "Test stability" patented technology

The invention discloses a test method for performing DC reboot on a server based on a WOL function. The method comprises the steps that a control terminal is connected with an Internet access of the server to be tested of a tested terminal; the WOL function of the server to be tested is started; an MAC address and an IP address of the Internet access applied to the server to be tested are acquired; a shutdown command is copied to a startup folder in an operating system of the server to be tested; the server to be tested is started up to enter the operating system, and the shutdown command is automatically executed after set time is up; the control terminal monitors the power-on/off state of the server to be tested; an operating system of the control terminal runs a WOL function command, DC reboot is performed on the server to be tested, and the control terminal records the number of times of reboot of the server to be tested; and whether the number of times of reboot of the server to be tested reaches a preset number of times or not is judged. According to the method, the Internet access wake-up function is utilized to perform cyclic reboot on the server in a DC power-off state, and the method is an automatic monitoring method with high practicability and a wide application range.

The invention discloses a semi-virtual functional test device and method for a control system. According to the method, in detail, a plurality of virtual slave station nodes are established in a real-time operation system of a computer to replace real slave station nodes and connected with a master station of the system to be tested through bus communication interfaces. Meanwhile, in a general operation system operating on the computer in parallel, and a software programming interface development procedure provided by virtual slave stations is used for achieving monitoring and a performance analysis of bus data and simulating functions of user input or device input, so that full-automatic testing is performed on the control system. Needed hardware is only one computer with the specific communication interface, and the general operation system and the real-time operation system operate on the computer in parallel. The semi-virtual functional test device and method have the advantages of being low in cost, high in testing efficiency and the like, can be suitable for developing, commissioning, functional testing and other testing occasions of the control system, and have good practical value and application prospects.

The invention relates to the technical field of photovoltaic trackers, and provides a multifunctional integration test method and system for a photovoltaic support array, and the method comprises the steps: connecting a communication box of at least one sub-array through an SCADA server, and transmitting a test instruction to at least one communication box; establishing communication with a plurality of AI control boxes in the corresponding sub-array areas through the communication boxes, and sending test instructions to the AI control boxes in different communication frequency bands; connecting the AI control boxes with driving devices in a one-to-one correspondence mode, controlling the driving devices to operate based on test instructions, and feeding back test data of each driving device to a communication box; and feeding back the test data of the communication box in the at least one sub-array area and the test data of the driving device to an SCADA server through the communication box, so that the SCADA server obtains a test result. According to the invention, the SCADA server sends out a test instruction, receives test data fed back by the communication box, and carries out all-around verification on the operation reliability of the photovoltaic power station array control system.

The embodiment of the present invention provides a test method, device, electronic equipment and storage medium, the method is applied to a client, the client is provided with a monitoring process, and the client is connected to a preset server; the method Including: starting the monitoring process; determining the first communication data to be sent to the server; sending the first communication data matching the monitoring process to a test tool connected to the monitoring process; receiving the testing tool return the first test data; send the first test data to the server; the server is used to respond to the first test data. The embodiment of the present invention can test the function and stability of the server, effectively prevent the hidden danger of communication data being leaked and tampered with due to the leakage of the test tool, and increase the stability of the software system composed of the client and the server and security.

The invention discloses a preparation method and application of a cationic modifier TCTAC, and relates to the technical field of anti-wrinkle and antibacterial finishing of cotton fabrics. The preparation method comprises the following steps of dissolving 2,3-epoxy hydroxypropyl trimethyl ammonium chloride in deionized water, dropwise adding ammonia water, heating and stirring for a reaction, and dissolving in deionized water to form a 1-amino-3-hydroxypropyl trimethyl ammonium chloride aqueous solution; and dissolving cyanuric chloride in acetone, dropwise adding the 1-amino-3-hydroxypropyl trimethyl ammonium chloride aqueous solution, adjusting the pH value to 6-7 by using a sodium carbonate aqueous solution, stirring for a reaction until the reaction is finished, performing salting-out purification and drying to obtain the cationic modifier TCTAC. According to the method, the synthesis period is short, the yield is high, the novel cationic modifier is synthesized, the cationic modifier can be used for carrying out anti-wrinkle/antibacterial dual-function treatment on a cotton fabric, and relative slippage among fibers can be effectively inhibited, so that the wrinkle recovery capability is improved, and the cotton fabric with excellent dry and wet wrinkle resistance can be obtained.

The invention discloses a method for inspecting the pulverized coal particle size distribution. According to the method, the pulverized coal particle size distribution is expressed by using a power function, pulverized coal which is pulverized by coal pulverizers is screened according to particle size industrial analysis, a mesh number is converted into particle diameter mu m, and the percent content of different particle diameters is measured; the measured percent content of the different particle diameters is introduced to an equation of the power function, so as to determine a and b, and then drawing is performed by using the particle diameter as an X axis and the mass fraction as a Y axis, so that whether the particle size of the pulverized coal which is pulverized by the coal pulverizers is stable can be determined according to the relationship between a and b. According to the method for inspecting the pulverized coal particle size distribution, a and b values in the corresponding equation of the particle size distribution are different for different coal pulverizers, but a certain function relationship exists, and whether the a and b values which are calculated according to products pulverized by the coal pulverizers conform to the function relationship is determined, so as to express the pulverized coal particle size and determine the stability of the pulverized coal which is pulverized by the coal pulverizers.

The invention discloses a method and system for testing video stability, and relates to the technical field of network communication. The method for testing video stability includes: acquiring video data of a first video played on a first terminal through a router, and downloading the video Playing the data to obtain a second video; comparing the first video with the second video to determine the number of freezes of the second video; judging whether the number of freezes of the second video exceeds a preset The number of times; if it exceeds, it is considered that the playback of the second video is unstable. The method provided by the invention is simple and convenient to test and deploy, and can automatically calculate the number of freezes during the playing process of the video, so as to judge the stability of the playing video.

The invention discloses a method for detecting the circulating stability of a coating. The method comprises the following steps: dividing a coating to-be-detected into two parts, wherein one part is used as a comparative sample, and the other part is put into a coating storage tank of a thoroughly cleaned circulating pipeline device; performing parameter setting on the circulating pipeline deviceto perform circulating on the coating; performing sampling detection on the coating during circulating; separately detecting the performance of samples taken out at a plurality of different preset time points during circulating, and comparing the performance of the samples with the performance of the comparative sample; meanwhile, spraying the samples taken out at a plurality of different preset time points; performing baking according to a predetermined requirement, testing the performance of the samples after baking, and comparing them with the comparative sample. According to the method fordetecting the circulating stability of the coating, a coating resistance circulating pump and a dispersion equipment shearing are simulated from parameters of a circulating experiment equipment, i.e., the stirring speed, the circulating time, the coating temperature, the pressure, the pipeline length and the like, so that the obtained results are more consistent with actual conditions.

The invention relates to the technical field of magnetic head detection, and provides a magnetic head test tool suitable for various types of magnetic heads. The device comprises a frame, an upper supporting plate and a lower supporting plate are arranged at the left end and the right end of the frame, a screw is rotated to enable a magnetic strip plate to slide up and down on a sliding rod, multiple sets of magnetic strips adhere to the upper end face of the magnetic strip plate, a vertical plate is arranged in the frame, and a set of rollers are rotationally connected between the vertical plate and the frame; each set of rollers is in transmission connection with a conveyor belt; a sliding plate is placed between the conveying belts on the front side and the rear side, a magnetic head groove hole is formed in the middle of the sliding plate, the magnetic head groove hole, the frame and the concentric-square-shaped baffle jointly form a groove, a magnetic head is placed in the groove,and a connector bar is arranged on one side of the sliding plate and electrically connected with the magnetic head. And meanwhile, the connector bar is electrically connected with control equipment capable of displaying read information of the magnetic head. The magnetic head testing tool is suitable for performance testing of magnetic heads of different specifications and different types, the universality of the magnetic head testing tool is improved, and the performance stability and the performance limit of the magnetic head can be tested.

The invention relates to a vehicle-mounted GPS terminal simulation reporting method and device, computer equipment and a medium, and the method comprises the steps: presetting a travel path for a vehicle-mounted GPS terminal based on map road network data; constructing a relationship between the GPS terminal and a preset route, and providing information corresponding to a real vehicle-mounted GPSterminal; configuring a reporting monitoring platform and reporting frequency; and according to the configuration data and a preset path path point, calculating and simulating the constant-speed advancing of the terminal, and reporting the advancing information of the terminal to a monitoring platform GPS position management module according to the configured reporting frequency. According to theinvention, a large amount of vehicle-mounted GPS terminals can be simulated according to actual requirements, different vehicle-mounted GPS terminals do not need to be installed on different vehicles,actual driving is not needed, and the stability, concurrent processing capability and the like of the vehicle monitoring platform can be effectively tested with very low cost.

The invention discloses a lateral pushing strength testing method and equipment for an electric bed. The method comprises the steps of performing sample installation, load simulation, test starting and result evaluation; and the equipment comprises a test area for placement of a sample bed and a control system for setting test parameters. By simulating the use state of the electric bed, lateral pushing is applied to the electric bed, the stability of the electric bed legs is detected, the loss rate of the bed legs after the electric bed legs are subjected to lateral pushing in a standard rangeis measured, and the service life of the electric bed is further evaluated according to the test parameters.

The invention discloses simulation test equipment and method for a super-load anchor pile cross beam counter-force device. In the equipment, the middle parts of two secondary beams are arranged on the top faces of the two ends of a main beam, and anchor pile caps are arranged on the top faces of the two ends of the secondary beams; two secondary pressure-bearing counter-force box girders are arranged on a test platform, and counter-force anchor pile caps are arranged on the bottom faces of the two ends of the secondary pressure-bearing counter-force box girders; four main pressure-bearing counter-force box girders are arranged side by side, and the two ends of the four main pressure-bearing counter-force box girders are arranged on the top faces of the middles of the two secondary pressure-bearing counter-force box girders; four-hole box girders are arranged at the two ends of the four main pressure-bearing counter-force box girders in a sleeving mode; an upper steel box cushion and a lower steel box cushion are arranged on the bottom face of the middle of the main beam and the top faces of the middles of the four main pressure-bearing counter-force box beams; six sets of jacks are arranged between the upper steel box cushion and the lower steel box cushion; a plurality of first twisted steel bars are welded between the anchor pile caps and the counter-force anchor pile caps; and a displacement sensor and a dial indicator are arranged on the main beam and the two secondary beams and used for detecting rigidity and deformation. According to the method, the main beam and the four main pressure-bearing counter-force box beams are subjected to graded loading and unloading through six sets of jacks, and whether the main beam and the secondary beams meet the requirement of the maximum load or not is judged.

Systems and methods include a method to fuse two sections of bone. The method includes various operations such as accessing the chest cavity (e.g., by severing the sternum) and preparing the sternal edges of the two sections of bone. Sternal wires are implanted around the two sections of bone to create a cradle in a space between the two sections of bone. Cancellous bone tissue may be harvested from the patient and used to hydrate an implant before trimming the implant and/or placing the implant in the cradle. The sternal wires are tightened to compress the implant between the two sections of bone; and the ends of the sternal wires are tied together to create a sternal structure comprised of the implant tightly compressed between the two sections of bone. The sternal construct can act as a bone gasket to improve healing and fusing for the two sections of bone.

The invention relates to the field of detection equipment, in particular to strength detection equipment based on a 5G dual-polarized antenna, which comprises a bottom plate, a mounting frame and a fixing frame body are fixedly mounted on the upper end surface of the bottom plate, the fixing frame body is located in front of the mounting frame, and a V-shaped frame is mounted on the front end surface of the fixing frame body. An upper pressing mechanism and a lower supporting mechanism are installed on the inner side of the fixing frame body, and the upper pressing mechanism and the lower supporting mechanism get close to each other or get away from each other in the vertical direction through a driving mechanism installed on the inner side of the fixing frame body. And meanwhile, the influence of air flow on the process is simulated, so that the wiring can be assisted to form an arrangement mode during installation, the detection accuracy can be improved, the resistance of the antenna after the surface of the antenna is frozen in winter can be effectively detected, and the purpose of testing the stability of the antenna during use in winter is achieved.

The invention relates to the technical field of artificial muscles, in particular to a pressure resistance detection device and method for bionic artificial muscles. The device comprises a clamping mechanism, an artificial muscle assembly, a pressure assembly and a mounting frame. When the artificial muscle is applied to the human body exoskeleton device to carry heavy objects, fixing of the mechanical claw has clamping force and upward drawing force, the designed clamping mechanism can simulate the actual working condition and provide the clamping force and the upward drawing force, meanwhile, the designed clamping block can be better clamped in the base, and therefore the clamping force and the upward drawing force can be provided for the human body exoskeleton device. The device is very convenient to mount and dismount, and is suitable for detection experiments of pressure and impact force. The designed pressure assembly is matched with the mounting frame, the pressure direction of the pressure plate can be flexibly adjusted, meanwhile, impact force accidentally generated in the heavy object carrying process can be simulated through an impactor in the pressure experiment process, and the stability of the artificial muscle in the sudden accident is tested.

The invention discloses a device and method for testing a curved pipe-roofing machine, and solves the problems that the curved pipe-roofing machine in the prior art is difficult in jacking, deslaggingand posture control, and there is shortage of theory and experiment basis. The device comprises a main unit, a steel pipe joint, and a jacking mechanism. A pile foundation for supporting the jackingmechanism is disposed on the ground, and the jacking mechanism is fixedly connected with the foundation pile. The foundation pile is provided with a cantilever suspension, and the main unit is disposed at one end of the steel pipe joint, wherein the other end of the steel pipe joint passes through the jacking mechanism. The jacking mechanism is provided with a guide mechanism and auxiliary equipment. The main unit is connected with the auxiliary equipment through a pipe in the steel pipe joint, and the guide mechanism is corresponding to the steel pipe joint. The cantilever suspension is disposed at one side of the steel pipe joint, and is connected with the steel pipe joint. According to the invention, the working conditions of underground excavation are simulated through a ground test, thereby achieving the testing of the operation performances of all systems of the curved pipe-roofing machine and the verifying of the construction precision and design reasonability while achieving the jacking of the curved steel pipe joint.

The invention provides a hydrological floating body stability experiment device, comprising a first V-shaped experiment plate, a camera, a first contact sheet, a second contact sheet and indicator lights; a solar photovoltaic power generation set is embedded in an outer side of a triangular tapered structure; a fixing plate is fixed on front ends of the first V-shaped experiment plate, a second V-shaped experiment plate and a third V-shaped experiment plate through a support rod; sliding rods on sliding floating bodies run through corresponding experiment plates before being connected to a bottom part of a sliding plate. The first contact sheet is mounted on one end of a top part of the sliding plate, and the second contact sheet is mounted on an end of a top part of the fixing plate. Thesliding floating bodies on the front ends of the V-shaped experiment plates contact with a water surface, and the first contact sheet and the second contact sheet on the fixed plate are enabled to bein contact with each other; the indicator lights, a timer and a storage battery form a closed loop; oscillating degrees can be indicated via the indicator lights corresponding to different experimentplates, and oscillating time can be recorded via the timer so to test stability of the floating bodies.

The invention designs a test device for a radial static pressure gas bearing experiment. The test device mainly consists of a spindle system module and a loading mechanism module. The spindle system module includes a computer table, a computer, a rack, a driving motor, a coupling, radial static pressure gas bearings, a spindle, micro displacement sensors, and micro displacement sensor brackets. The loading mechanism module includes parallel wheels, a loading bearing, a circular leather sheath, a tension rope, a bearing rod, a spring dynamometer, a weight disc, supporting frames, an upper supporting plate, a guide rail, a worm gear, a handwheel, and a lower supporting plate. The spindle in the spindle system is carried by the two radial static pressure gas bearings. Displacement detection is carried out on the spindle by the three micro displacement sensors. One end of the spindle is driven by the driving motor through the coupling, and the other end is loaded by the loading mechanism through the loading bearing. The test device for the radial static pressure gas bearing experiment can test the static stiffness and dynamic stability load of the radial static pressure gas bearings, adopts the special loading mechanism, can load the spindle from any angle in the radial direction, and can adjust the height of the loading.

The invention discloses a method for testing stability of thickened oil. The method comprises the steps of: (a) preparing a thickened oil emulsion; (b) putting the emulsion into an experimental container; (c) standing the experimental container into a constant temperature oven for a period of time; (d) recording the deposition water amount at the bottom of a measuring cylinder, dividing the deposition water amount by total moisture content in the emulsion of the thickened oil to obtain the settling dehydration rate; and (e) analyzing the stability of the thickened oil through the settling dehydration rate, and judging that the thickened oil emulsion with high settling dehydration rate is unstable. The stability of the thickened oil can be rapidly tested by the method; and the method is high in test accuracy and low in test cost, and data support is provided for mining of the thickened oil.

The invention discloses camshaft testing equipment. The camshaft testing equipment comprises a base, loading devices arranged on the base, a supporting device for supporting a camshaft and a driving device for driving the camshaft to rotate; each loading device comprises a support, loading swing arm assemblies matched with cams arranged on the camshaft and preloading assemblies mutually cooperating with the loading swing arm assemblies; each loading swing arm assembly comprises a swing arm and a reading board perpendicularly arranged in the middle of the swing arm, rollers are arranged at thetwo ends of each swing arm, standing boards are arranged on the supports, and the middles of the swing arms are rotatably connected to the standing boards; and each preloading assembly comprises a shell, a gland located over the shell, an elastic part, an upper spring base and a lower spring base, wherein the elastic part and the upper spring base are located in the space formed between the shelland the gland,the upper end of the elastic part acts on the upper spring base, and the lower end of the elastic part acts on the lower spring base.