37results about How to "Avoid huge workload" patented technology

The invention provides a static analysis method of a smart phone application program. The static analysis method comprises the steps of receiving an uploaded application program sample; scanning an installation package of the application program sample and extracting specified feature information; matching the specified feature information with a feature code database of a cloud server; judging the safety level of the application program if matching is successful; scanning an API of the application program and judging the safety level of the application program if matching is unsuccessful. In addition, the invention further provides a static analysis system of the smart phone application program. According to the static analysis method and system, automatic detecting of the safety level of the application programs of an Android system and an IOS system can be achieved, the detection efficiency is high, and the accurate rate is high.

The invention discloses a fiber vibration sensing system two-order signal feature extraction and determining method, and belongs to the technical field of fiber sensing signal determining, for solving the problems of incapability of accurately determining external vibration signal types under ambient noise interference and quite low efficiency of a conventional signal type discriminating method in the prior art. The method is characterized in that first of all, a short-time over-threshold rate of external vibration signals is extracted; secondary, an average algebraic sum of the extracted short-time over-threshold rate is calculated, and signal fragments comprising external vibration information are screened; thirdly, feature extraction is further performed on the short-time over-threshold rate of the signal fragments; and finally, a vibration type of each signal fragment is determined. The method provided by the invention, as a signal type determining algorithm, though signals come from a noisy background, various external vibration signal types can be accurately and efficiently determined, there are fewer false alarms, and false alarm rate is low.

The invention discloses an unmanned aerial vehicle UAV control law parameter adjusting method, and aims at providing a parameter adjusting method which is large in parameter adjusting freedom degree,capable of effectively improving system design efficiency and capable of saving cost. According to the technical scheme, the method comprises the steps that a Matlab is used as a tool, and a general control console, a pneumatic coefficient module, an engine module, an undercarriage, airplane wheels, a brake model, a pitch angle local controller at the balance point of the unmanned aerial vehicle,a six-degree-of-freedom airplane model and a general module library of a sensor model for building the control law of the unmanned aerial vehicle are generated; a field bus control system FCS selectsa set control mode to calculate a control law, an accelerator position instruction and a rudder deviation instruction according to a control instruction given by the general console, ,,sends the flight state parameters of the unmanned aerial vehicle, and directly fits the obtained controller parameters at the characteristic points to obtain a function of the controller parameters about the heightH and the Mach number M and a parameter adjustment control law of a continuous change law of the controller parameters along with the parameter variables in the whole situation.

The invention relates to the field of three-dimensional animation design, and provides a rigid body motion realization method comprising the steps that step 100, motion data of N+1 moments in the rigid body motion process are acquired; step 200, data processing is performed on the sampled motion data via a difference quotient algorithm so that a unit tangent vector and a curvature vector of translational motion of each moment are obtained and the unit tangent vector and the curvature vector of rotary motion are also obtained; step 300, construction of rigid body translational motion is performed; step 400, construction of rigid body rotary motion is performed; step 500, the whole motion process of a rigid body is constructed according to the rigid body translational motion constructed in the step 300 and the rigid body rotary motion constructed in the step 400 so that a motion track curve of each point on the rigid body is obtained; and step 600, the rigid body is enabled to move according to the motion track curve according to the obtained motion tract curve of each point on the rigid body. The rigid body motion is closer to the real object motion scene in real life so that interactivity of the design is enhanced.

The invention discloses a universal probabilistic safety assessment model conversion system. With respect to the universal probabilistic safety assessment model conversion system, general probabilistic safety assessment automatic modeling methods and rules are combined with decomposition processing of a rich text probabilistic safety assessment model, computer-assisted modeling of the probabilistic safety assessment model can be carried out to a system including common cause failures. The universal probabilistic safety assessment model conversion system mainly comprises three modules: a model processor analyzes and processes the probabilistic safety assessment mode of a given system, model information of the given system is converted and decomposed into a standard model unit; an automatic modeling expert knowledge base stores construction rules of a universal system probabilistic safety assessment model, design and flow information of the given system, and specific probabilistic safety assessment model check rules of the given system and input by the user; and a model checking device analyzes, checks and arranges the standard model unit, changes the error of the standard model unit, and supplements missing probabilistic safety assessment model information, and a perfect system probabilistic safety assessment model is obtained.

The invention discloses a method an device for calculating a composite early warning index based on critical rainfall and an early warning method. A calculation formula RTI=(K1*Pa+P)/H^K2 of the composite early warning index RTI is obtained, K1 and K2 represent coefficients respectively, Pa represents the early-stage influence rainfall, H represents an early warning period, and P represents a critical rainfall in the situation of combination between early-stage influence rainfall and the early warning period; values of the coefficients K1 and K2 are obtained; the initial soil water content during start of rain, actually measured or forecast rainfall and time length of the rainfall are obtained and substituted into the above calculation formula RTI=(K1*Pa+P)/H^K2, and a real-time compositeearly warning index value is obtained; and the real-time composite early warning index value is compared with a sectional composite early warning index threshold, and corresponding operation is carried out according to the comparison result. Existing information before is used fully, the early warning value in a random period can be calculated easily, and a new effective method is provided for early warning against a mountain torrent disaster.

The invention provides a fluidized bed boiler denitration device based on cyclone separators. The cyclone separators are connected to a hearth outlet flue of a fluidized bed boiler. Ammonia guns are arranged on outlet flues of the cyclone separators, and jet orifices of the ammonia guns of the outlet flues are downward. The invention further provides a fluidized bed boiler denitration method. According to the fluidized bed boiler denitration device provided by the invention, the flue gas temperature at the outlet flues of the cyclone separators is located between the optimum temperatures of denitration agent and NOx reaction; denitration reaction can be better conducted; the utilization rate of denitration agents is increased; a shut-off valve is installed on each newly-added pipeline to be matched with an original pipeline; and operation of the ammonia guns in the different positions can be switched at any moment under the different working conditions of the boiler, so that the optimum reaction combination is sought.

The embodiment of the invention provides a message analysis method and device, electronic equipment and a computer readable storage medium. The method comprises the following steps: extracting a plurality of message blocks from a message body in a system message; determining a corresponding analysis rule based on the message type to which the message block belongs; and analyzing the transaction information from the message block based on the analysis rule. Based on the scheme, message analysis of different application systems can be realized, the application range is wide, and huge workload caused by writing an analysis program can be avoided.