94results about How to "The judgment process is simple" patented technology

This invention discloses a data buffer storing method and a system under cluster environment, in which, the method includes: a customer end sends a data calling request, a server enquires if there are data to be called in the loca buffer storage, if not, it enquires the database, if so, it judges if the buffer storage data are invalid, if not, it returns the data result to the customer end directly, if so, it enquires the database to return the result to the customer end and writes it in the buffer storage, therefore, it guarantees that the data result to the customer end by the server is the newest and the method will not break the character of cluster technology.

A power transmission control apparatus is a power transmission control apparatus provided in a power transmission apparatus included in a contactless power transmission system where power is transmitted from the power transmission apparatus to a power reception apparatus by electromagnetically coupling a primary coil and a secondary coil. The power transmission control apparatus includes: a signal detection circuit that detects a signal induced by the primary coil; and a power transmission control circuit that determines a value of transmission data transmitted from the power reception apparatus by a load modulation, on the basis of an output signal of the signal detection circuit. The power transmission control circuit obtains detection data by detecting the transmission data on the basis of the output signal of the signal detection circuit at every drive clock cycle of the primary coil. If a value of the detection value is identical n-times continuously, where n=m+α≦p, the m is an integer equal to or larger than 0, the α is an integer equal to or larger than 1, and the p is an integer equal to or larger than 1, the power transmission control circuit determines that the value of the transmission data transmitted by the power reception apparatus is the value of the detection data.

The invention provides a method for determining commutation failure of a multi-infeed direct current power transmission system. The method is characterized by comprising the steps of calculating the extinction angle of an inverter station in the system in case of three-phase short-circuit grounding and single-phase short-circuit grounding of each node based on a nodal impedance matrix and by virtue of a node voltage interaction factor, and determining whether the direct current system fails in commutation with a critical extinction angle as the criterion. Besides, the calculation results of all the nodes are integrated, and a three-phase critical failure impedance boundary and a single-phase critical failure impedance boundary are delimited on a network topology, respectively. The minimum extinction angle is taken as the determination criterion of the method for the commutation failure, and an alternating current system area causing the commutation failure of the direct current system during a fault can be determined quickly and accurately through simple calculation by virtue of the critical failure impedance boundaries, and the accuracy of the determination method is improved while the determination process of the commutation failure is simplified. The influence, caused by a fault of an alternating current system, on the direct current system can be determined and analyzed clearly and visually.

The invention relates to the computer safety technology field and particularly relates to a DNS attack defense method, device and system. The method comprises steps that after DNS requests are received, the corresponding identifier information is searched in a memory according to association data of the DNS requests, the whitelisted or unpacked identifier DNS requests are responded to, the blacklisted or banned identifier DNS requests are defended, for the DNS requests with detection identifiers, the request frequency within the predetermined period is determined, the DNS requests surpassing the request threshold are defended, for the DNS requests not surpassing the request threshold, unpacking time determination is carried out, the DNS requests reaching the unpacking time are responded to, and the DNS requests not reaching the unpacking time are defended. The method is advantaged in that the identifier information is preset, determined request sources or domain names a re directly responded or defended, for the undetermined request sources or domain names, further determination and detection are carried out, the DNS attack determination flow is simplified, and DNS attack determination efficiency is improved.

The invention provides a city signal control intersection traffic state detecting and evaluating system based on data characteristic and a method and an application thereof. The system comprises a vehicle state detection unit, a control state monitoring unit, a signal collecting unit, a microprocessing unit, a data transmitting unit, a data processing unit and a traffic state display unit, wherein, the vehicle state detection unit and the control state monitoring unit are connected with the signal collecting unit in parallel; then the signal collecting unit is also connected with the microprocessing unit, the data transmitting unit, the data processing unit and the traffic state display unit sequentially; the microprocessing unit is also connected with a real time data storage unit signal; and the control state monitoring unit is also connected with a traffic signal lamp signal. The method is applicable to various traffic engineering technology activities carried out by traffic real time data analysis, and the method has the advantages of intuition, easy application, high judgement accuracy and wide application range.

The invention provides a health assessment method and an expert system based on human body temperature modeling and an electronic device. The health assessment method based on human body temperature modeling comprises the steps of acquiring temperature sampling values of at least two preset human body positions to form a sampled temperature vector; performing difference matching to the sampled temperature vector and a preset body temperature reference model to obtain a difference vector; judging whether human body shell temperature is abnormal or not based on a comparison between the difference vector and a preset temperature drift threshold. By adopting the technical scheme provided by the embodiment of the invention, the abnormal state of human body temperature change can be easily recognized and a corresponding prompt in the aspect of physiological function can be given.

This invention provides an image processing system and image processing method which can specify and save an input image which matches a predetermined pattern and also simplify the determination process. Vector data is generated from image information input by a scanner. Keyword information to inhibit reuse, which is contained in the image information, is input. The similarity between the input vector data and the keyword information is determined. Only when it is determined that the vector data is similar to the keyword information, the generated vector data is stored in a storage device.

The present invention discloses a tumble detection method and a wearable tumble detection device. The tumble detection method includes the following steps that: an atmospheric pressure sensor is utilized to acquire atmospheric pressure values, and an atmospheric pressure change rate is calculated; when the atmospheric pressure change rate is greater than a change rate threshold value a1, a current time point t0 and an atmospheric pressure value of the corresponding time point t0 are recorded; atmospheric pressure values and an atmospheric pressure change rate in a time interval from the current time point t0 to a time point t are stored in a storage module, and the maximum value max_1 of the atmospheric pressure value and the maximum value Max_2 of the atmospheric pressure change rate are obtained; whether max_1, max_2, m, a change rate threshold value a2, an atmospheric pressure threshold value b and an atmospheric pressure threshold value c satisfy relational expressions max_2>a2 and b<max_1-m<c is judged; if the max_1, max_2, m, the change rate threshold value a2, the atmospheric pressure threshold value b and the atmospheric pressure threshold value c satisfy the relational expressions, it is judged that a user tumbles; and if the max_1, max_2, m, the change rate threshold value a2, the atmospheric pressure threshold value b and the atmospheric pressure threshold value c do not satisfy the relational expressions, the storage module is cleared, the atmospheric pressure change rate is monitored further. According to the tumble detection method and the wearable tumble detection device, whether the user tumbles is judged through the atmospheric pressure values and the atmospheric pressure change rate. The tumble detection method and the wearable tumble detection device have the advantages of simple process, easiness in implementation, high real-time performance and high accuracy.

An automotive multiplex communication system is provided, which is capable of determining the fulfillment of conditions to make a transition to a sleep state with a simplified system configuration and with simplified determination processing. This communication system is provided with a particular communication node and a plurality of ordinary communication nodes. When a communication-continuing request is not determined from pieces of first information respectively delivered from the ordinary communication nodes, the particular communication node delivers a sleep-transition command signal to the ordinary communication nodes. The ordinary communication nodes enter their sleep state in accordance with the sleep-transition command signal from the particular communication node, without individually determining the necessity to make a transition to the sleep state.

The invention provides a video fill-in light method and apparatus. The method comprises the following steps: when carrying out a video chat by an intelligent device, judging whether a camera of the intelligent device requires fill-in light; and if judging that the camera requires the fill-in light, determining a fill-in light area and an image area on a display screen of the intelligent device, wherein the fill-in light area is used for carrying out fill-in light on the camera, the image area is used for displaying an image of the local end user and the image of an opposite end user, and the brightness of the fill-in light area is higher than that of the image area. Therefore, the image quality of the image of the local end user can be effectively improved without influencing the normal video call.

The invention discloses a desertification interpretation method based on the satellite remote sensing technology. The method comprises the steps of (1) satellite remote sensing image selection; (2) image processing which comprises band combination selection and image enhancement processing; (3) desertification interpretation, wherein a satellite remote sensing image is opened through a GIS system and synchronous display is conducted, and then the distribution positions, distribution ranges, desertification types and desertification degrees of all desertification areas in an area to be interpreted are judged according to the displayed image; (4) map compilation, wherein a digital topographic map of the area to be interpreted is opened by the GIX system, all the desertification areas are marked in the opened digital topographic map according to a desertification interpretation result, the desertification types and degrees are marked in the marked desertification areas, and then a desertification graph is obtained. The method is simple in process, reasonable in design, convenient to realize, good in using effect, and capable of achieving desertification interpretation conveniently and quickly.

The invention discloses a handover method for a global system for mobile communications for railway (GSM-R) based on train function numbers. The method comprises the following steps of: registering train function numbers, preparing a list of cells along the line, sending pilot signals of switched cells, measuring wirelessly, judging, handing over and canceling the train function numbers. The handover method disclosed by the invention utilizes the characteristic that cells covered on the train line are linear cells, so that handover has fixity, and the train function numbers are combined to perform handover, thereby effectively avoiding the problem of ping-pong handover in communication of mobile users on a high-speed train, and improving the effectiveness of handover.

In a method and magnetic resonance apparatus for the automatic determination of the sagittal plane in the examination region of an object, an essentially coronal localizer image exposure of the examination region is acquired, from which the sagittal plane is determined by an automatic image assessment by the image-processing unit of the magnetic resonance apparatus.

The invention discloses an information processing method and device. According to the information processing method, when a command of starting an application program is received, whether the application program is a first kind of application with a first kind of interface as the initial startup interface is detected, and thereby a first running position of the application program after the first kind of interface runs is determined when the application program is the first kind of application, then the application program is controlled to skip to a first running position for starting, so as to avoid running the first kind of interface which is not the main interface of the application program, thus showing that the technical scheme in the embodiment of the invention can effectively avoid the interface running splash screen advertisements before entering the main interface of the application program, thereby achieving the effect on enhancing user experience and improving execution efficiency of the application program.

The invention provides a method and device for judging the fault type of a power distribution network line. The method comprises the following steps of: according to a fault occurrence position in theto-be-judged line in the power distribution network, acquiring a three-phase initial current signal before a fault and a three-phase fault current signal after the fault, which are output by a low-voltage side of a line, and analyzing the amplitude and phase of the three-phase fault current signal and the amplitude and phase of the three-phase initial current signal to judge the three-phase faulttype of the power distribution network line. Thus, the whole judgment process is simple and easy to implement, the fault type can be conveniently, timely and accurately judged, the technical cost islow, and high practicability is achieved.

A colorimetric method includes performing colorimetry on color patches to acquire colorimetric values, and determining whether or not color patches subjected to colorimetry are color patches that should undergo colorimetry based on the colorimetric values and reference values.

A method for locating partitions of a video image is provided. The method is used to simplify the process of obtaining the related information of neighboring partitions during the coding and decoding process for the video image. The method starts by mapping the storage units of a matrix to adjacent sub-blocks of a video image. The related information of the partitions is stored in the corresponding storage units. The related information of the neighboring partitions is obtained according to the relative locations of the storage units and the mapping relationship between the storage units and the sub-blocks.

The invention provides a method for recognizing gas outburst based on data of a safety monitoring system. The method comprises the steps of a, acquiring gas concentration and wind speed and direction data of a working face through gas sensors and wind speed and direction sensors; and b, judging gas outburst according to the gas concentration and wind speed and direction data at different positions of the working face. According to the invention, judgment for gas outburst can be realized through utilizing the existing installed sensors of the working face, so that damages brought about by gas abnormity in safety production are avoided, an alarm is given for gas outburst through the change regularity in position, type and data of the sensors installed at the working face, and the overall emission rate of gas outburst is calculated. The judgment process is simple, judgment for gas outburst is realized without increasing equipment, and the cost is saved.

An optical touch device and a sensing method thereof are provided. The optical touch device includes a plurality of optical sensors and a processing unit. The optical sensors are arranged around a touch plane and are spaced from each other. The two adjacent optical sensors located at one side of the touch plane are defined as one set of an optical sensing module, such that the optical sensors are paired to form multiple sets of the optical sensing modules. The processing unit generates a plurality of touch coordinates data corresponding to the plurality sets of the optical sensing modules according to the optical touch data, and determines whether the touch coordinates data corresponding to each set of the optical sensing modules is in at least one touch-excluded area corresponding to each set of the optical sensing modules, and respectively excludes the touch coordinates data in the touch-excluded area.

The invention discloses an unmanned aerial vehicle endurance judgment method, a device and a computer storage medium. The unmanned aerial vehicle endurance judgment method includes the steps: acquiring unmanned aerial vehicle information, battery information and flight information; acquiring flight time according to the unmanned aerial vehicle information and the flight information; acquiring flight support time of a battery according to the unmanned aerial vehicle information and the battery information; judging that the battery can support an unmanned aerial vehicle to execute flight when the flight support time is longer than the flight time. The distribution efficiency of the unmanned aerial vehicle is improved.

The method for a hydrocarbon mixture composition determination includes the collection of at least one sample of the hydrocarbon mixture. For this sample, a nuclear magnetic resonance method is used for measuring series of hydrocarbon mixture's free inductance decrement curves within a temperature range of −150° C. to +150°. Each free inductance decrement curve is then used to determine the solid component fraction Ps in the NMR 1H signal at a temperature, at which this value was measured. The received values are then used to plot a temperature dependence of the solid component fraction Ps in the NMR 1H signal and, based on the Ps value variation (ΔPsi), caused by a phase transition of the ith component due to a heating or cooling process and the content of solid and / or liquid phase components in the hydrocarbon mixture is defined by attributing the ΔPsi value to the associated components of the mixture.

The invention discloses a method for improving the heat exchange calculation performance of a steam generator in a sodium-cooled fast reactor system program, which comprises the following steps: dividing a sodium-cooled fast reactor direct-current steam generator by adopting a fixed grid method, determining the grid division of a steam generator thermal component by adopting the fixed grid method,and calculating the CHF generation position. And judging the heat exchange mode of each grid, and respectively calculating the heat exchange coefficient of each grid according to the working conditions of single-phase liquid heat exchange, nuclear boiling, membrane boiling and superheated steam. And on the basis of the fixed grid, using the CHF movable boundary model for carrying out grid division on the control body with the CHF phenomenon again, and recalculating the heat exchange coefficients of the upper heat component and the lower heat component. Setting boundary conditions, repeating the steps, calculating the heat exchange coefficient of the next time step of each grid, and finally obtaining the heat exchange amount of the steam generator at each moment. According to the method, the heat exchange calculation precision of the once-through steam generator in the analysis program of the sodium-cooled fast reactor system is guaranteed, and the solving speed of the reactor numerical calculation program is increased.

The invention discloses a radar target location analysis method based on graphic geographic information. According to the method, the geographic information of the might range is mapped to image data based on a certain corresponding relationship according to the radar target location characteristics, and a corresponding local data area and a statistical data area are created with the image pixel locations acting as indexes; local information is edited on the image according to the actual demand, and the local area are updated in the local data area; the target geographic coordinate information is mapped to the image data in application, the data of the local data area corresponding to the image location are acquired, and the location relationship between the target and the related area is judged according to the data value; meanwhile, counting updating of the statistical data area can also be performed, and a statistical graph is formed through normalization. The geographic location information under a radar polar coordinate system is converted to plane image information so that the algorithm is simple and rapid, judgment of the target location can be efficiently completed in real time, and local monitoring, alarm and statistical functions can be realized.

The invention relates to a crutch with a controllable rod length through pressure sensing and a method thereof for controlling the rod length. The crutch comprises a holding part, a leading screw, a rod body, a control module and a supporting part, wherein the holding part and the supporting part are configured with a plurality of pressure sensing units to sense the held strength applied to the holding part and the contacting strength applied to the ground by the supporting part so as to generate a plurality of holding pressure values and feedback pressure values; the rod body is connected with the holding part; a motor is configured on the supporting part; one end of the leading screw is meshed with the motor, and the other end is pivotally connected with the rod body; the holding part judges that the holding part is held according to the holding pressure values and the feedback pressure values, and when the crutch is tilted, the motor is ordered to rotate to drive the leading screw to pivotally rotate so that the leading screw and the rod body translate in opposite directions to shorten the crutch or lengthen the crutch. The invention also provides the method for controlling therod length through the pressure sensing. Thus the crutch can be regulated to a height suitable for a user by matching with slope variation.

The invention is suitable for the technical field of liquid drop impact characteristic simulation, and provides a liquid drop target release position calculation method, which comprises the following steps: obtaining impact information when a liquid drop is released for the i time, the impact information comprising an impact point position when the liquid drop is released for the i time and a grid unit where the impact point position is located when the liquid drop is released for the i time, obtaining a release position xi when the liquid drop is released for the i time; obtaining a target distance si according to the distance between the impact point position and the target angular point when the liquid drop is released for the i time; until si<=S, determining that the release position xi is the target release position of the liquid drop. The liquid drop target release position calculation method has the advantages of being simple in calculation, efficient in calculation, good in robustness and high in calculation result precision.

The invention discloses a knowledge acquisition method of a decision information system of a decision information system based on a formal vector. The method takes the decision formal background as aresearch object and defines a formal vector for describing the potential knowledge of the information system. By introducing the idea of granularity, formal vectors in different granularity spaces areobtained from coarse to fine, and a formal vector tree is constructed based on parent-child vector relation, which realizes the visualization of rule acquisition process. In the process of acquiringthe simplest rule, the relation between the conditional form vector and the decision form vector is used to extract the simplest rule, which simplifies the decision process of the rule. Whether the rules cover the whole universe or not is set as the termination condition, so that there is no redundancy between the rules, which ensures the minimum number of rules and accelerates the convergence speed of the algorithm; Due to the use of fewer rules and the minimization of the rule length, the algorithm also has a higher recognition rate.