367results about How to "Guaranteed test results" patented technology

The system is about intelligent proposition and paper organizing. It relates to problem bank management equipment which can storage / pick-up / transfer test questions and test paper configuration model one that can establish proposition and organize paper. It also relates to the buffer bank equipment to pick-up test questions / establish proposition and organize paper from corresponded sub-problem bank, the one to start most circulation degree, the one to organize paper and checkout and the one to come out paper. They cooperate with each other to organize paper in turn, according to preference distinction sequence of goal parameter to test questions, such as proportion to type of problem, knowledge, importance grade, coefficient of difficulty. After organizing, it will affirm the result. It organizes paper exactly to the prescript of examination brief to keep dissimilarity of picking up test questions and can consider the preference distinction sequence of goal parameter to test questions to enhance the efficiency of proposition and paper organizing. This kind of paper can prevent examinee cheating and realize equality of test to inspect the fact learning level of examinee.

The invention discloses a full-automatic enzyme-linked immunoluminescence analyzer which comprises a working table, wherein a suction head carrier frame, a sample carrier frame, a reagent carrier frame, a sample injection, vibration and incubation unit, a plate washing unit and a reading unit are arranged on the upper surface of the working table, wherein a transverse guide rail is further arranged on one side of the working table; a support is mounted on the transverse guide rail in a sliding manner; two longitudinal guide rails are arranged on the support; a micro plate catching mechanical arm and a sample injection arm are mounted on the longitudinal guide rails in a sliding manner; the micro plate catching mechanical arm is provided with a first perpendicular arm capable of ascending and descending along the perpendicular direction and a fourth driving device for driving the first perpendicular arm to rise up and drop down; a micro plate catching device is fixedly mounted at the bottom of the first perpendicular arm; the sample injection arm is provided with a second perpendicular arm capable of ascending and descending along the perpendicular direction and a fifth driving device for driving the second perpendicular arm to ascend and descend; and a sample collection and injection device is mounted on the sample injection arm. The full-automatic enzyme-linked immunoluminescence analyzer has the beneficial effects that operation of sample injection, plate washing, vibration, incubation, reading and judgment of a developing reaction result and the like during enzyme-linked immunosorbent assay can be automatically completed, the working efficiency is improved, labors are saved, and a test result is guaranteed.

The invention discloses a behavioral model-based software security test case generation method, which comprises the following steps of: (1) determining software security test needs; (2) describing the security test needs by using a test need behavioral model; (3) describing the test need behavioral model by using a unified modeling language (UML) state chart; (4) transforming the UML state chart into a finite state machine (FSM); and (5) automatically generating a security test case based on a characteristic sequence of the FSM. In the behavioral model-based software security test case generation method provided by the invention, security test is performed primarily from a software security defect (SSD) behavior prevention mechanism, an SSD behavior detection mechanism and an SSD behavior response mechanism, so that the one-sidedness and need imperfection of conventional software security tests are overcome and the test effectiveness is ensured. Simultaneously, the test case automatic generation method provided by the invention reduces the workload of testers, improves the efficiency and level of automation of the test and ensures test effects.

The invention discloses a multifunctional test platform for landslide impact strength, comprising a slide channel, an accumulating channel, a supporting adjusting device arranged at the bottom of theslide channel, landslide impact sensors arranged in different positions in the accumulating channel, a data collection device arranged outside a test model channel and connected with the landslide impact sensors, and a rainfall simulator arranged above the slide channel; the slide channel and the accumulating channel are uniform in sectional size and are each formed by assembling a plurality of unit model channels 1 m in length and 1 m*1 m in inner diameter. The multifunctional test platform for landslide impact strength has the advantages that multifunctional landslide physical simulation experiments, such as rainfall-induced landslide mechanism analysis, landslide rock-soil deformation monitoring analysis, landslide speed monitoring and landslide impact test analysis can be carried out,and an experimental apparatus is simple and firm, convenient to disassemble and assemble; the multifunctional reusable test platform based on based on multiple variables is suitable for the scientificresearch and utilization of landslide disaster, and is worthy of popularization and application.

The invention discloses an automatic test system based on character recognition. The automatic test system based on character recognition comprises a testing terminal and an image collecting device. The image collecting device is used for collecting the actually output image of a display device to be tested, and transmitting the actually output image to the testing terminal. The testing terminal is further used for intercepting a specified area image of the actually output image, recognizing an actual character string of output information of the specified area image and judging whether the character string is the same as a corresponding standard character string. If the actual character string is the same as the corresponding standard character string, the information that a test is normal is produced; if the actual character string is not the same as the corresponding standard character string, the information that the test is abnormal is produced. The automatic test system based on character recognition is automatic, fast and simple. Reliability of testing efficiency and the test result of the display device is improved, and research and development time and cost of the display device can be further reduced effectively.

The invention relates to an automobile hydraulic electric power steering reliability test bench and program control test method. An input system comprises a servo motor, a reducer and a universal joint connected with the input end of a steering gear; an output system comprises a linear hydraulic cylinder with two functions of driving and load simulation, the front pole of a hydraulic cylinder piston is provided with a pressure sensor and connected with the rocker arm of the output end of the steering gear by a coupler with a joint bearing. An eccentric shaft, an eccentric bushing and a variable frequency motor are arranged at the inner bore of the rear lug of the hydraulic cylinder to form an automobile vibration simulation system, so as to simulate real vibration of rugged road surface. The hydraulic cylinder is compact and simple in structure, system integration is high and usable range is wide. The joint bearing causes the installation to be convenient. The hydraulic loop includes a throttle valve, thus speeding up oil-taking. An industrial personal computer, a motion control card and a data acquisition card are used, so that system stability is high, measurement accuracy is high, and response speed is fast. Curves and process control can be displayed in real time, and automatic save, plotting and printing can be realized. The test bench set can complete all reliability tests of fatigue, wear, forced steering, inverse overload and overpressure.

The invention provides a physical modeling experiment device for a multifunctional high-speed remote landslide dynamic process. The physical modeling experiment device comprises a support base, an upper sliding section, a transition section and a lower sliding section, wherein the upper sliding section, the transition section and the lower sliding section are successively connected with each other; the support base is arranged as a height adjusting mechanism; the top end of the height adjusting mechanism is connected with the lower surface of the inlet end of the upper sliding section; the upper sliding section comprises an upper sliding slot, a baffle and a rotating connector; the baffle is mounted in the upper sliding slot; the transition section is arranged as an arc-shaped slide slot matched with the rotating connector; the transition section is hinged with the rotating connector; the lower sliding section comprises a lower sliding slot and an adjusting module; one slot wall of the lower sliding section is hinged with the transition section while the other slot wall is connected with the transition section through the adjusting module. The device provided by the invention can be used for implementing a physical modeling experiment for the multifunctional high-speed remote landslide dynamic process; the three factors of landslide height, landslide volume and topographic condition are mainly contained; the topographic condition factor includes gradient, base and sliding path direction; the reciprocating test can be performed according to different topographic conditions.

The invention relates to a bolt tensile test tool and a tensile test device using the same. The bolt tensile test tool comprises a head connection piece and a screw connection piece which are arranged up and down in a use process, wherein the head connection piece is provided with a supporting plane for being in surface contact and in positioning and supporting match with the head of a corresponding bolt; the extending direction of the supporting plane is vertical to the up-down direction; and the screw connection piece comprises a bolt connection structure which is connected with a screw of the bolt and a ball hinging structure which is connected with a pulling-down head of a corresponding tensile machine. The bolt tensile test tool and the tensile test device using the bolt tensile test tool, which can guarantee that the axial direction of the screw is the same as the direction of the tensile force of the tensile machine, are provided by the invention.

The invention discloses a micro-grid analogue simulation system based on a real-time digital simulation platform. The micro-grid analogue simulation system comprises a real-time digital simulator and a micro-grid device. The real-time digital simulator comprises a hardware interface and a software system. The hardware interface comprises an input interface card and an output interface card. A micro-grid system model is set up in the software system and comprises a micro-grid power distribution network model and a distributed type power micro-grid device primary system model. The micro-grid device comprises a micro-grid central control unit, a photovoltaic power generation controller, an energy storage device controller and a protection device controller, wherein the photovoltaic power generation controller, the energy storage device controller and the protection device controller are connected with the micro-grid central control unit respectively. The micro-grid analogue simulation system can simulate the practical running condition of a power grid, the strategy of controlling and protecting the whole micro-grid device can be conveniently and rapidly verified and adjusted, the micro-grid analogue simulation system is economical and practical, and the test result is ensured.

The invention discloses a pressure testing machine for building quality detection. The pressure testing machine comprises a base, portal frames are symmetrically and fixedly connected to the top end of the base, pressure measuring and buffering mechanisms are movably connected to the interiors of the portal frames, and power transmission and clamping fixing mechanisms are installed at the positions, corresponding to the two sides of the portal frames, in the base, and one end of the base is fixedly connected with a material recovery and crushing mechanism. The pressure testing machine is scientific and reasonable in structure and safe and convenient to use, the pressure measuring and buffering mechanisms are arranged, lead screws are driven by a driving motor to rotate, and through cooperation of a first belt, the two lead screws rotate together to push a lifting block to move; therefore, the lifting block drives a movable plate and a pressing plate to move along a groove, the distancebetween the pressing plate and a building material is adjusted, the pressing plate is attached to the top end of the building material, the pressing plate is pushed to press downwards through cooperation of an air cylinder and a piston rod, and a pressure bearing test is conducted on the building material on a bearing plate.

An exhaust casing assembly used for a test piece of a gas compressor comprises an outlet casing assembly, a front exhaust outer ring section, a front exhaust inner ring section, a test lead, an exhaust casing connecting ring, a rear exhaust outer ring section, a rear exhaust inner ring section and a balancing disc sealing ring. The whole casing assembly is formed through assembly of the exhaust casing connecting ring. The front end of the outlet casing assembly is connected with an outlet of the gas compressor. The rear end of the rear exhaust outer ring section is connected with a rear exhaust section of the test piece of the gas compressor. The outlet casing assembly and the rear exhaust outer ring section are connected with a front component and a rear component in an overlapped mode. The outlet casing assembly, the front exhaust inner ring section, the rear exhaust outer ring section and the rear exhaust inner ring section are of cantilever structures. The exhaust casing assembly has the advantages that the exhaust casing assembly is applied to the test piece of the gas compressor which is high in pressure ratio and large is flow, the requirements for balanced axial force, exhaust flow pass switching and the like of the test piece of the gas compressor are met, and meanwhile the relative requirements for testability, assembling capacity, reliability, maintainability and the like of the test piece can also be met.

The invention discloses a method for estimating a separation trajectory of a stage separation wind tunnel free flight test model. The method comprises the following steps of 1, determining an attack angle-mechanical coefficient table of an aircraft model before separation and separated body models after separation; 2, setting initial launching parameters and an initial launching position of a freeflight test of the aircraft model before separation, and setting the separation position of the aircraft model before separation; 3, estimating flight trajectory data of the free flight test of the aircraft model before separation; 4, determining initial launching positions and launching parameters of the separated models; 5, estimating separation trajectory data of the separated models; and 6, judging whether the separation trajectory data of the separated body models meet the test requirements or not, and if not, resetting the initial launching parameters / launching position values in the step 2, starting execution from the step 3 again, until the separation trajectory data of the separated body models meet the test requirements; or readjusting the separation position, and starting execution from the step 4, until the separation trajectory data of the separated body model meets the test requirements.

The invention provides a method for pre-estimating flight path of a wind tunnel free flight test model, and the method comprises the steps: 1, obtaining an attack angle - mechanics coefficient table of a flight model; 2, setting the initial attack angle value theta0 of a free flight test, a transmission position, and an initial transmission speed, obtaining the mechanics coefficient at the initial attack angle value theta0 through linear interpolation, and enabling the initial attack angle value theta0 and the corresponding mechanics coefficient to serve as an initial transmission parameter D0; 3, calculating and obtaining pre-estimated flight path data through a Runge-Kutta method after flight at the transmission position; 4, repeatedly carrying out the steps 2 and 3 when the pre-estimated flight path data does not meet the testing requirements, obtaining a new pre-estimated flight path, and carrying out step 4 till the new pre-estimated flight path meets the testing requirements. The method pre-estimates the flight path of free flight of a model in a wind tunnel, enables the flight path to stay for longer tie in an observation region, and obtains more effective information during testing.

The invention discloses a resource association method based on crowd intelligence aggregation convergence. Firstly, public participation-oriented learning resource labeling tasks are formulated, and participants are mobilized to mark relevance degrees of knowledge, then deception-type participants are screened out through evaluating task completion situations of the participants, and are marked asunqualified users; remaining higher-quality label results are collected after the unqualified users are filtered out, mark classifications made by participants are utilized and an EM algorithm is used to continuously iterate to calculate each participant error rate pi and each relevance T, iteration is continually carried out through the EM algorithm until convergence is reached, and thus the relevance degrees between knowledge points are estimated; and a label result set of the participants is obtained by collection, association degrees between resources are calculated, and finally, association data are stored to a server. Relevance between the knowledge resources is obtained, the deception-type participants can be effectively found and replaced in time, crowd intelligence label qualityis improved, and technical support is provided for deeply mining association between the learning resources.

The invention discloses a dust cutter calibration system. According to the dust cutter calibration system, a wind tunnel is used for simulating a uniform dust environment, and a collection head of the dust cutter is arranged in the dust environment; when collection efficiency of the dust cutter is calibrated, the same particle diameter spectrometer which is calibrated standardly is used for measuring concentration of dust in dust-containing gas from which dust is not cut and concentration of dust in dust-containing gas from which dust is cut, and accuracy of detection results can be improved. Via the calibration method, not only can the collection efficiency of the dust cutter be calibrated, dust concentration tester and the particle size spectrometer can also be calibrated.

The invention discloses a method, device and system for detecting optical fiber faults. The method for detecting the optical fiber faults includes the steps that after receiving an optical fiber fault detection request transmitted by a network element management system, a PON MAC module transmits starting indication information to an OTDR module, and the switching state of an optical switch module is controlled; after receiving the starting indication information, the OTDR module transmits an OTDR detection signal to the optical switch module; according to control of the PON MAC module, the OTDR detection signal is switched by the optical switch module into corresponding optical fibers, and an OTDR reflected signal is received from the corresponding optical fibers and transmitted to the OTDR module; the OTDR module extracts OTDR sampling data from the OTDR reflected signal, and the OTDR sampling data are transmitted to the network element management system through the PON MAC module. As the OTDR module and the optical switch module are arranged in a PON board card, on the basis that OTDR optical fiber testing performance is guaranteed, the optical fiber diagnosis cost can be reduced, and meanwhile size limitation and power dissipation limitation of an optical module are avoided.

The present application provides an application testing method and system. In the method, a pool of testing devices comprises at least one real device and at least one simulation device; each real device and each simulation device separately correspond to one device identifier; and the device identifier corresponding to each simulation device is a virtual mapping identifier. The method comprises: receiving a testing request of a user for a to-be-tested application; selecting ,in the pool of testing devices, at least one device as a current testing device; acquiring a device identifier corresponding to the current testing device each; based on the device identifier corresponding to the current testing device each, sending a testing instruction to the current testing device, wherein the testing instruction is used for instructing the current testing device to test the to-be-tested application; and receiving a testing result returned by the current testing device. Thus, according to the method in the embodiments of the present application, the pool of testing devices is constructed by mixing the real devices with the simulation devices, and therefore the testing effects are ensured as much as possible while the costs can be reduced.

The invention discloses a virtual-real combined real-time laser radar data generation method and system and equipment. The method comprises the following steps: rendering a simulation scene based on a high-precision OSM semantic map and generating an SUMO road network consistent with a real scene; generating a complex traffic flow scene based on the SUMO road network; synchronizing the autonomous vehicle state information to the SUMO road network, and establishing a traffic flow test scene; acquiring surrounding scene point cloud and traffic flow vehicle information according to the autonomous vehicle positioning information, and generating virtual-real combined laser radar data in real time; real-time fusion of virtual traffic flow and laser radar data of a real road scene is realized, scene information in the laser radar data comes from a real large-scale point cloud map, and vehicle point cloud is generated by a three-dimensional model of a fairly real vehicle. The generated laser radar data is used as a sensing result for automatic driving vehicle testing, so that the testability of the scene is ensured, and the complex traffic flow testing scene can be provided.

The invention discloses a korotkoff-sound-based blood pressure measurement method and a blood pressure measurement and cardiovascular system evaluation system, aiming to solve the problems of inaccurate blood pressure measurement and large influences of individual differences on measurement results in the prior art. Through combination of information detection at radial arteries with intelligent pressurization and pressure relief techniques, signal sources are stable, accurate capture of korotkoff sounds is ensured, and accordingly, the stability and reliability of the measurement results areimproved. Cardiovascular parameters of a human body can be calculated according to basic information of the human body and the measurement results, information of the human body, such as age, height,gender, weight and arm length, is entered, and a series of measured cardiac function parameters such as PWV (pulse wave velocity), heartbeat, heart output and blood viscosity are acquired through algorithm processing, so that an examinee is assisted in evaluating the state of his / her cardiovascular system.

The invention discloses a pipe and pipe fitting punching device for positioning a temperature sensor, and relates to the field of electric smelting pipe fitting welding detection. The pipe and pipe fitting punching device comprises a bottom plate, a pipe positioning mechanism arranged on the bottom plate, a pipe inner wall punching mechanism and a pipe fitting outer wall punching mechanism. To solve the problem that at present, most of hole positions, for positioning the temperature sensor, in existing pipe fittings and pipes are manually completed by experience, and precision is hard to control, the high-precision, high-consistency and high-automation-degree pipe and pipe fitting punching device for positioning the temperature sensor is provided.

The invention provides an oil leakage defect detection method and system. The system comprises an ultraviolet light source module, a visible light imaging module, a parameter setting module, a displaymodule, an alarm module and an image analysis module. The method comprises the following steps: S1, fixing relative positions of an ultraviolet light source module and a visible light imaging module,wherein the irradiation direction of the ultraviolet light source module is relatively parallel to the shooting direction of the visible light imaging module, and after the ultraviolet light source module irradiates an area to be detected, the visible light imaging module collects high-definition image data of the area to be detected and transmits the high-definition image data to the image analysis module; S2, enabling an image analysis module to receive the high-definition image data, and obtain an oil leakage defect detection and recognition result through image analysis and processing; S3, transmitting the image and text information of the oil leakage defect detection and recognition result to a display module for display, and transmitting a detection and recognition result signal toan alarm module for alarming. According to the invention, the anti-interference capability of the environment is enhanced, and the influence of personal experience on detection results is avoided.

The invention relates to a robot which comprises an emission source, a photosensitive component and a processing component, wherein the emission source is used for emitting a detection light; the photosensitive component is used for sensing a reflecting light which is formed on and returned from an object surface by the detection light; the processing component is used for recognizing the interference light which is formed by an interference object close to a practically detected object and is contained in the reflecting light and eliminating a noise signal formed by the interference light, so as to prevent the robot from abnormally acting under the interference of the interference light. According to the technical scheme, the interference light can be accurately recognized, the corresponding noise signal can be timely eliminated, the normal walking of the robot can be ensured and the abnormal action can be avoided.

The invention discloses a code automatic packaging system, and belongs to the technical field of code compiling. The system comprises a client side and a server side, wherein the server side comprisesa code database used for storing code, a code updating unit used for updating the code so as to update the version, an updating recording unit used for recording the updating operation, a request obtaining unit used for obtaining downloading requests of the client side, a code obtaining unit used for inquiring the updating recording unit according to the downloading requests so as to obtain corresponding code, a code packaging unit used for packaging the code and storing the code to a preset storage address, and a notification unit used for sending the storage address to the client side so asto notify the client side to perform downloading. The technical scheme has the beneficial effects that the automatic packaging processing of a code installing package is realized; the workload for testing software during version upgrading is greatly reduced; the dependence of the software test on development personnel is reduced; and meanwhile, the test effect is ensured.

The invention relates to a lithium Ion battery voltage, internal resistance and shell resistance comprehensive test device which is characterized by comprising a probe testing mechanism and a testing digital display, the probe testing mechanism comprises a testing probe, a cylinder, a switch and a testing control circuit, the testing control circuit is composed of a testing main circuit and a control circuit; the testing main circuit realizes through / break switch through the opening of an intermediate relay normally open normally closed contact, and controls the switching of voltage inner resistance testing and shell resistance testing respectively; the control circuit realizes the switch between the testing main circuit and the control circuit through the self-locking through / break of the intermediate relay and the through / break function of a time relay. The device has the advantages of improving testing efficiency and badness detecting capacity, realizing combining operation of voltage inner resistance testing and shell resistance testing, and increasing unqualified battery alarming, so as to avoid unqualified battery leakage.

The invention relates to the field of sterile detection, in particular to a fully closed membrane filter for sterile examination of a sterile packaging interlayer and a detection method of the fully closed membrane filter. The fully closed membrane filter comprises two bacterium collecting incubators and an air filter device, wherein the two bacterium collecting incubators and the air filter device are connected to one end of a three-phase circulator by virtue of a conduit; the other end of the three-phase circulator is connected to a sterile sampling needle by virtue of a detection tube; and an intercepting clip is arranged on the part, close to the three-phase circulation valve (the three-phase circulator), of the conduit. By virtue of the fully closed membrane filter disclosed by the invention, secondary pollution on leaching liquor during operating is reduced, a microorganism detection rate is improved and an experimental result is better guaranteed. The circulation of medicine liquid in a sealed space is achieved and the medicine liquid is prevented from getting into contact with external side, so that the fully closed membrane filter plays a great role in the prevention of microbial pollution. Meanwhile, as for operation time, the experimental operation time is shortened by half, the detection efficiency of test article sterile examination is greatly improved, and a detection pollution rate is reduced to be less than 5% from original 20-25%.

The invention discloses a method for preparing a solid granular biochemical reagent, solving the problem that the conventional biochemical reagent cannot be accurately metered under the condition of zero gravity or bumping. The method mainly comprises the following steps of: (1) preparing the biochemical reagent; (2) distributing liquid drops through a liquid dispensing pump; (3) dropping the liquid drops into liquid nitrogen so that the liquid nitrogen in contact with the liquid drops absorbs heat so as to be gasified to form a gas flow, wherein the gas flow enables the liquid drops to be floated on the surface of the liquid nitrogen; and when the liquid drops are completely solidified, the liquid drops are formed into ice pellets and sunk to the bottom of the liquid nitrogen; and (4) freeze-drying the ice pellets in a freeze dryer, thereby obtaining the finished product. The method is high in accuracy, simple and convenient for operation, good in detection result and the like.

The invention belongs to a hydrogen measuring device and particularly relates to an accurate measuring device of hydrogen diffusion and permeation characteristics in a coating. The tritium-blocking coating hydrogen diffusion and permeation performance measuring device comprises a sample chamber, the sample chamber comprises an outer vacuum chamber and an inner vacuum chamber, the sample chamber isconnected to a water cooler, the water cooler is used for cooling the sample chamber, the inner vacuum chamber of the sample chamber is respectively communicated with an inner vacuum chamber molecular pump and an inner vacuum chamber mechanical pump through valves, and the inner vacuum chamber molecular pump and the inner vacuum chamber mechanical pump are used for vacuumizing the inner vacuum chamber. The outer vacuum chamber of the sample chamber is respectively communicated with an outer vacuum chamber molecular pump and an outer vacuum chamber mechanical pump through a quadrupole mass spectrometer. The outer vacuum chamber molecular pump and the outer vacuum chamber mechanical pump are used for vacuumizing the outer vacuum chamber. The quadrupole mass spectrometer is respectively communicated with an industrial control computer and an ion pump. The sample chamber is communicated with an air chamber through a standard leak. The measuring device can accurately control the temperature of the test sample and complete the test at different temperatures.

The invention discloses a testing system for material erosion resistance. The system comprises a testing chamber, a water erosion testing portion, a cavitation testing portion and a particle adding portion. The testing chamber is a testing operation space and is used for clamping a sample. The water erosion testing portion is mainly composed of a water tank, a high pressure water generator and a high pressure water nozzle which are sequentially connected. The high pressure water nozzle extends into the testing chamber and corresponds to the sample inside the testing chamber. The cavitation testing portion is mainly composed of an air compressor and a high pressure gas nozzle which are sequentially connected. The high pressure nozzle extends into the testing chamber and corresponds to the sample inside the testing chamber. The particle adding portion is mainly composed of a particle storage tank and a particle conveying pipe. One end of the particle conveying pipe is connected with the particle storage tank, the other end of the particle conveying pipe is connected with the water erosion testing portion and / or the cavitation testing portion. A particle flow control valve is arranged on the particle conveying pipe. The testing system can perform comprehensive, accurate and reliable testing on the erosion performance of a material to be tested.

The invention relates to a mining spoil heap rainfall infiltration experimental apparatus and a method, and belongs to the field of environment geotechnical engineering. The mining spoil heap rainfall infiltration experimental apparatus comprises a control platform, an observing device, a rainfall device, a natural wind stimulator, and a stimulator. The mining spoil heap rainfall infiltration experimental apparatus is capable of stimulating, with consideration of influences of different wind speeds and wind directions, erosion effects, which are caused by different rainfall conditions on mining spoil heaps with different slop angles and different inner structure characteristics, and leaching characteristics which are caused by infiltrated rain in the inner parts of mining spoil heaps. It is beneficial for analysis of environmental geology disasters caused by mining spoil heaps under rainfall conditions. The mining spoil heap rainfall infiltration experimental apparatus is also capable of realizing verification and demonstration on implementation effects of mining spoil heap ecological restoration technology by changing materials in stimulated mining spoil heaps. In addition, in verification processes, parameter setting, data monitoring, recording and processing can all be completed via centralized control processing of the control platform, so that experimental effect is ensured, and experimental efficiency is improve greatly.

The invention discloses a method and system for malicious code detection based on a virtual technology in an Android system. The method comprises the steps that at first, executable files in the Android system are recognized and analyzed; machine instructions of each executable file are split; the virtual technology is used to simulate execution of the machine instructions and simulate a physical environment required during running of the instructions; possible system calling and API calling are also simulated; sensitive information generated during the simulated execution and the simulated calling is monitored and recorded; and finally the sensitive information is matched with matched characteristics in a rule base, and whether an executable file containing a malicious code exists is determined. The method and the system disclosed by the invention make up deficiencies in existing technologies aiming at malicious code static detection in the Android system and conduct deep detection of the malicious codes in the Android system.