71 results about "Grey box" patented technology

Transcutaneous electrical and magnetic nerve stimulation devices are disclosed, along with methods of averting imminent medical attacks using energy that is delivered noninvasively by the devices. The attacks comprise asthma attack, epileptic seizure, attacks of migraine headache, transient ischemic attack or stroke, onset of atrial fibrillation, myocardial infarction, onset of ventricular fibrillation or tachycardia, panic attack, and attacks of acute depression. The imminence of an attack is forecasted using grey-box or black-box models as used in control theory. In preferred embodiments of the disclosed methods, a vagus nerve in the neck of a patient is stimulated noninvasively to avert the attack.

A method and process for developing and testing software applies runtime executable patching technology to enhance the quality assurance effort across all phases of the Software Development Life-Cycle in a "grey box" methodology. The system facilitates the creation of re-usable, Plug"n'Play Test Components, called Probe Libraries, that can be used again and again by testers as well as developers in unit and functional tests to add an extra safety net against the migration of low-level defects across Phases of the overall Software Development and Testing Life-Cycle. The new elements introduced in the Software Development Life-Cycle focus on bringing developers and testers together in the general quality assurance workflow and provide numerous tools, techniques and methods for making the technology both relatively easy to use and powerful for various test purposes.

The invention discloses an electromagnetic compatible digitized model system for a whole aircraft, which comprises an aircraft parameterized surface model construction unit (1), an airborne equipment position matching unit (2), an airborne equipment interference associated unit (3), an electromagnetic environment distribution unit (4) and a sensitive equipment interference source acquisition unit (5). The invention constructs the electromagnetic compatible digitized model system for the whole aircraft by adoption of the behavioral simulation method, application of the 'grey box' theory, consideration of characteristic parameters of electronic airborne equipment from the aspect of system level, neglect of various circuit details, and digitized modeling simulation of the electronic airborne equipment of the aircraft.

The invention belongs to the technical field of software testing. The invention particularly relates to a program path sensitive grey box testing method and device. The method comprises the steps thatin the offline training stage, vulnerability mode learning is conducted on a sample data set through a deep neural network, a classifier of a program execution path is obtained, and a sample data setpackage comprises vulnerability program path sample data and vulnerability-free program path sample data; and in an online test stage, the classifier is integrated into a fuzzy test tool to guide a seed file to perform a selection test, seed input triggering a vulnerability path is preferentially selected to perform the test, endowing the test with a plurality of variation energies to execute corresponding variation times, and performing cyclic execution until interruption. The method fills up the blank of vulnerability path sample influence analysis, does not depend on a complex dynamic analysis technology, does not bring about a large overhead problem, can be effectively combined with other grey box test technologies, improves vulnerability discovery efficiency, can be directly suitablefor a binary program, does not depend on a source code, and is high in applicability.

The invention relates to the technical field of communication equipment, in particular to a heat dissipation and dust removal device of an information communication cabinet. The heat dissipation and dust removal device includes a shell, four sets of rollers are symmetrically and fixedly mounted on the front corner, the rear corner, the left corner and the right corner at the bottom of the shell, aplurality of sets of springs are fixedly mounted on the bottom side of the interior of the shell, supporting plates are fixedly mounted at the tops of the springs, the communication cabinet is placedon the supporting plates, and two sets of sliding rails are fixedly mounted at the left end and the right end of the rear side of the interior of the shell. The invention provides the heat dissipation and dust removal device for the information communication cabinet. A motor is used for driving a traveling gear to rotate through a connecting shaft, and so that a heat dissipation box and the motormounted on a connecting frame enables the heat dissipation box to up-down reciprocate in the arrangement direction of racks through forward and reverse drive of the motor through coordinated slidingof sliding blocks on the sliding rails, heat dissipation of the communication cabinet is continuous, and by using an exhaust fan, dust flying in the shell is inhaled into an ash collecting box throughan air suction pipe to achieve dust removal of the communication cabinet.

The invention discloses a CCFD (China Computational Fluid Dynamics) system based on an OSGi (Open Service Gateway Initiative) technology. The CCFD system comprises a plug-in engine, a system application plug-in and a component manager, wherein the plug-in engine is responsible for installing and uninstalling the system application plug-in and verifying a dependency relationship; the inner part of the system application plug-in is realized by a component, and service is provided and used by the component; the service issued by the component can be found by analyzing a configuration file of the component, and the service provided by the assembly can be injected into another component applying for the service. Through the technical scheme of the invention, non-intrusive type grey box expansion on the CCFD system can be realized.

The invention relates to an accurate overprinting method for printing envelope postal codes, which comprises the steps of: capturing an envelope image in real time by a camera; extracting gray level information and red domain information; approximating the gray level information to be a segment; seeking an envelope edge; establishing and updating an envelope edge model according to the continuity of continuously collected images; generating a code red box according to the red domain information; computing whether an average distance delta y between the successfully matched red box and the envelope edge model is within an allowable range of an envelope standard or not; if delta y is within the allowable range of the envelope standard, judging again whether a sequence number of the red box is 1 or not; if the sequence number of the red box is 1, emitting a command of printing a first postal code character in a current position to an envelope printer; if the sequence number of the red box is not 1, computing a distance delta n between the current red box Rn and the previous red box Rn-1; judging that delta n conforms to the envelope standard; and controlling the envelope printer to print corresponding postal code characters in the current position. In the accurate overprinting method, the interference of external factors is effectively eliminated with high control accuracy.

The invention discloses a sample format protection method and device for a gray box fuzzy test. The sample format protection method comprises the steps of training a machine learning model to enable the model to recognize the correctness of the format of a testing corpus; when the fuzzy test is conducted on a program, obtaining an initial corpus from a corpus set and mutating the initial corpus toobtain the testing corpus; using the testing corpus to conduct the fuzzy test on the program, and in the process of the fuzzy test, determining whether the format of the testing corpus is correct ornot through the model. When the format of the testing corpus is correct and the testing corpus covers a program code uncovered by an existing testing corpus, the testing corpus is added into the corpus set, and the process is repeated. In this way, the corpuses, with the correct format, determined in each fuzzy test is added into the corpus set, the correctness of the formats of the corpuses in the corpus set is guaranteed to the greatest extent, and the efficiency of the fuzzy test is improved. Moreover, through a position set, the mutation of the initial corpus is guided, an invalid mutationoperation is avoided, and the testing efficiency is further improved.

The invention discloses an attack method for EEG brain computer interface based on convolution neural network, includes using white box attack to construct white box countermeasure sample of EEG brainsignal, using grey box attack to construct grey box countermeasure sample of EEG brain signal, using black box attack to construct black box countermeasure sample of EEG brain signal, using white boxattack to construct white box countermeasure sample of EEG brain signal, using grey box attack to construct grey box countermeasure sample of EEG brain signal. EEG brain signal white box countermeasure samples, gray box countermeasure samples, black box countermeasure samples attack EEG brain interface convolution neural network. The invention provides three attack methods according to differentattack situations, None of the three attacks need to know the truth label of EEG samples in advance, It is more suitable for the application scenario of BCI, which makes up for the blank of lack of security test of BCI against countermeasure samples, and ensures its effectiveness and practicability, so it can be a good method to test the robustness of EEG BCI system.

The invention provides an automatic optimization method for an Apache Spark application based on historical task analysis. The method comprises the steps that a task submission interface of the Sparkapplication is encapsulated, whether or not a layered grey box time prediction model of the Spark application exists is judged, a database is accessed, the layered grey box time prediction model is read and updated, and a user selects whether or not optimization is conducted; if yes, an optimization parameter is generated, and if not, execution is conducted according to an original parameter, anda shell command running task is called. According to the automatic optimization method, known cluster hardware resource information is sufficiently used, an efficient search scheme for an optimal parameter on a high-dimension parameter space is selected and achieved, a configuration parameter with excellent performance is screened out under the established layered grey box time prediction model, and the aim of automatically optimizing a Spark parameter is achieved.

The invention relates to an intrusive type grey box assembly validation method based on a model, and belongs to the technical field of software engineering. The intrusive type grey box assembly validation method based on the model includes steps: 1) designing workflow: designing a workflow model composed of a plurality of abstract components according to business logic of software to be developed; 2) performing instantiation: performing retrieval in an instance component library according to function demands and interface information of all the abstract components in the workflow, confirming whether one single instance component matched with the abstract components exists, and if yes, inserting the matched single instance component into the position of the abstract components, or if not, selecting a plurality of the instance components, combining the selected instance components into a composite component, and invading the composite component into the position of the abstract components; 3) verifying properties: converting a configuration file generated in the instantiation so as to obtain a Kripke structure script suitable for execution of a model checker NuSMV, and verifying validity and safety of a component assembly process based on the Kripke structure script. Compared with the prior art, the intrusive type grey box assembly validation method based on the model has the advantages of improving software development efficiency based on the components and the like.

The invention relates to the field of dust purifiers, in particular to an industrial dust purifier. The industrial dust purifier comprises an air inlet pipe, a filtering mechanism, an air outlet mechanism, a collecting mechanism, a clearing mechanism and a sweeping mechanism; when a dust filtering plate is cleared, one seal plate is closed, a partitioning plate at the top of the closed seal plateis closed, a connecting pipe at the position of a seal plate which is not closed is used for conveying internal air of the air inlet pipe, and a connecting pipe at the position of the seal plate whichis closed will not convey the internal air of the air inlet pipe; at the moment, the connecting pipe for discharging air blows air to close the dust filtering plate at the closed partitioning plate,dust on the side walls of the dust filtering plate at the closed partitioning plate falls into a dust collecting box and is cleared away, in a similar way, the cleared dust filtering plate and the seal plates are closed, the dust filtering plate and the seal plate which are not cleared are opened, and the two dust filtering plates are cleared.

The invention relates to a dynamic and static data hybrid driven Hammerstein nonlinear industrial system simple grey box space identification method, and belongs to the field of control theory and control engineering nonlinear system identification. The method comprises the following steps: S1, collecting dynamic data and static data of a system; S2, selecting and processing a Hammerstein nonlinear system model to obtain a prediction model; S3, constructing a dynamic simple model of the Hammerstein nonlinear system; S4, constructing a static simple model of the Hammerstein nonlinear system; and S5, solving system parameter fusion identification by using a hierarchical Lagrange optimal weighting method. Dynamic and static data are adopted at the same time, and based on the decomposed simplemodel, the estimation of additional intermediate parameters is avoided, the variance of the estimation model is reduced, and the model precision is improved.

The invention belongs to the technical field of computers and information engineering, and particularly relates to a heat-dissipation dust collection device for computers and information engineering.For solving the technical problems that cleaning of accumulated dust in a case and a case assembling and disassembling process are complicated, and heat-dissipation dust collection effects are poor, the scheme includes that the heat-dissipation dust collection device for computers and information engineering comprises a case, a slot is formed in the outer wall of one side of the case, a front cover plate is fixed on the inner wall of the slot through a screw, a second slot is formed in the outer wall of the other side of the case, and a back plate is fixed on the inner wall of the second slotthrough a screw. By a partition on a side cover plate, every important portion is sealed, with the aid of a convection fan, accumulated dust is pressed to a dust storage box by convection, and cannotbe deposited in the case, a central fixing column and a speedy fixing nut cooperate with clamped connection of a sealing clamping strip and the side cover plate, speedy assembling and disassembling can be implemented, air cooling cooperates with water cooling to improve a heat dissipation effect, a filter element is arranged at the position of a convection hole, and the accumulated dust is filtered while convection heat dissipation is implemented.

The invention relates to a real-time monitoring and controlling method and system for friction torque of a dry clutch. On the basis of the mechanical characteristic when a large end and a small end of a diaphragm spring are loaded simultaneously, displacement and acting force of the small end of the diaphragm spring are measured in real time by a sensor on an automobile, the purpose of monitoring the friction torque of the clutch in real time can be achieved, and the friction torque can further be controlled accurately according to the monitored friction torque. In a friction torque control process, current friction torque and controlled friction torque can be measured accurately, the friction torque control effect is ensured, and various problems caused during control of a black box system or a grey box system are avoided.

Systems and methods for eyelid shape estimation are disclosed. In one aspect, after receiving an eye image of an eye (e.g., from an image capture device), an eye-box is generated over an iris of the eye in the eye image. A plurality of radial lines can be generated from approximately the center of the eye-box to an upper edge or a lower edge of the eye box. Candidate points can be determined to have local maximum derivatives along the plurality of radial lines. From the candidate points, an eyelid shape curve (e.g., for an upper eyelid or a lower eyelid) can be determined by fitting a curve (e.g., a parabola or a polynomial) to the candidate points or a subset of the candidate points.

The invention discloses an air purifier. The air purifier comprises a housing, a filtering assembly, a dust collecting assembly and a control circuit board, the housing is of a hollow-out structure, the filtering assembly and the dust collecting assembly are installed in the housing, the control circuit board is fixed on the housing, the filter assembly comprises a filter tube, a turbine fan and avibration generator, the filter tube is provided with an air outlet, the turbine fan is installed on the filter tube and is electrically connected with the control circuit board, the vibration generator is installed on the filter tube and is electrically connected with the control circuit board, and the dust collecting assembly comprises a dust collecting box which is installed below the filter tube. By arranging the vibration generation on the filter tube, dust particles adhering to the outer surface of the filter tube can be automatically cleaned by the air purifier, dust particles can be collected by the dust collecting box under the action of gravitational force to prevent the problems of the accumulation of dust particles and secondary pollution, so that the service life of the air purifier is prolonged, and the trouble of frequent replacement and cleaning of filter core is prevented. The use of the air purifier is not restricted by air environment, so that the air purifier has more marketing value.

The invention discloses an air purification device capable of prolonging usage life of a filter core, which relates to the technical field of the air purification device. The air purification device comprises a housing, a first air inlet hole is arranged at a peripheral sidewall of the housing, an air outlet hole is arranged at the top of the housing, an upper fan, a double-shaft motor, a lower fan and a filter core are arranged in the housing in order from top to bottom, a detachable dust-collection box is arranged below the housing, the upper side of the dust-collection box realizes clamp connection with the lower side of the housing, an elevating casing is arranged in the housing, and a second air inlet hole is arranged at the peripheral sidewall of the elevating casing. For solving theproblems of frequent replacing of the filter core and high cost in the prior art, the invention provides the air purification device capable of prolonging usage life of the filter core and saving expense.

The invention discloses a business service encapsulation and access system, method and device of a rich client. A client is taken as a 'black box', the processing of the 'black box' is performed through a user-driven servitization method and a system-driven servitization method, and the servitization of business data is achieved; and when the 'black box'cannot extract the target service data, theclient is used as a 'grey box', and the 'grey box 'is processed by using the application-driven servitization method to realize service data servitization, so that the challenge that the existing service data cannot be servitized in a C/S architecture is overcome.

The invention discloses a grey-box autonomous test method of a distributed robot system and a system thereof. The method comprises the following steps of analyzing a work mode of the distributed robot system and acquiring a work module topology network; according to the work module topology network, generating a grey-box test case used for testing the distributed robot system; and according to the grey-box test case, carrying out grey-box autonomous testing on the distributed robot system. In the invention, convenience and test efficiency of distributed robot system testing are increased, independent and autonomous performance of the distributed robot system is improved, and manual testing and cost are reduced.

The invention discloses an indoor air purification device for public places in the technical field of air purification. The device comprises a tank, wherein an air inlet is formed in the bottom of theleft side wall of the tank and fixedly installed on the tank through bolts, a coarse filter layer is clamped on the right side of the air inlet, a dust box is arranged on the right side of the coarsefilter layer, an ash box is arranged at the bottom of the dust box, a centrifugal fan is fixedly installed on the right side of the dust box, an air purification chamber is arranged on the right sideof the centrifugal fan and communicated with an air humidification chamber through a water filter plate, and an exhaust fan is arranged at the top of the air humidification chamber; an ash damper isarranged at the top of the right side of the inner wall of the tank, and a base is fixedly welded on the outer wall of the bottom of the tank. During operation, air is sucked in by the centrifugal fan, the sucked air passes through the coarse filter layer and an ash removal box, the centrifugal fan is prevented from being covered with dust, and the air is discharged from an air outlet through theexhaust fan after purification and humidification.

The invention provides a vulnerability detection method and device based on Java exception, and relates to the technical field of vulnerability detection. The method comprises the steps of obtaining ato-be-detected Java program; determining a to-be-detected abnormal interface class of the to-be-detected Java program; obtaining a grey box program compiled based on the abnormal interface class to be detected; obtaining a to-be-detected Java program vulnerability obtained after the browser performs a fuzzy test on the to-be-detected Java program; and operating the grey box program, so that the grey box program records the Java program vulnerability corresponding to the to-be-detected abnormal interface class in the to-be-detected Java program vulnerability, and the technical problem of relatively low vulnerability detection efficiency of the Java program in the prior art is solved.

The invention discloses a CPU on-line testing method based on a grey box. The method includes the following steps that a safe computer language code rule is set; a minimum language subset related to CPU functions is extracted; a CPU functional test case is generated; an object code is generated; the object code operates on a tested CPU, and a test result is produced; results are compared on another CPU; an expected result is stored on another CPU; whether the test result is identical with the expected result or not is judged; if the test result is identical with the expected result, CPU functions are judged as normal, and operation continues; if the test result is not identical with the expected result, system failure processing is judged. Advanced computer languages are utilized to achieve on-line testing on the CPU functions, transportability and readability of a test code are improved, a CPU functional layer, truly used commands and complete coverage of a register are considered, a CPU does not need to be shut off or interrupted, preservation and recovery of the internal state of the CPU before and after self-testing are not needed, and the current state of the CPU cannot be damaged.