83results about How to "Judgment time is short" patented technology

The invention discloses a multi-point leakage locating method of a water supply network based on a convolution neural network, comprising the following steps: pressure data of the water supply networkis collected, the collected water supply data is divided into a training sample and a test sample; the smaples are normalized, the normalized samples are input into the convolution neural network model for training, and the convolution neural network model is obtained. The normalized test samples are used to test the convolution neural network model, and the trained convolution neural network model is saved. The real-time data are normalized and input into the trained convolution neural network model, and the prediction results are obtained through the trained convolution neural network model. The prediction results are compared with the tag index to judge the leakage. The invention also discloses a multi-point leakage locating device of a water supply network based on a convolution neural network. The invention reduces noise points in data through convolution and pooling operations, extracts special features in each type of data, and makes prediction more accurate.

A transient flow problem method-based oil pipeline dropping detection device belongs to the field of operation and maintenance of a long-distance oil pipeline. The invention aims to solve the problems that the existing quantitative and positioning device for detecting the dropping of the oil pipeline is high in use cost and time-consuming and is easily influenced by environment. The transient flow problem method-based oil pipeline dropping detection device comprises a processor, a storage, a data collecting card and M pressure sensors; the M pressure sensors are uniformly arranged on the oil pipeline; the pressure signal output end of each pressure sensor is connected with the pressure signal input end of the data collecting card of which the pressure signal output end is connected with the pressure signal input end of the processor; the data transmission end of the processor is connected with the data transmission end of the storage; the processor processes the collected pressure signal in real time, and a transient flow problem method is adopted for judging whether the oil pipeline dropping exists or not.

The invention discloses a multifunctional circuit for controlling and protecting a switching apparatus, which comprises a microprocessor circuit, a signal sampling and processing circuit, a short-circuit detection circuit, a tripping electromagnet drive circuit, a control electromagnet drive circuit and a power supply conversion circuit for supplying power supply to the circuits, wherein the input end of the short-circuit detection circuit is connected with the sampling and processing circuit, while the output end is connected with the tripping electromagnet drive circuit so as to judge a current signal from the signal sampling and processing circuit and control the action of the tripping electromagnet drive circuit. The multifunctional circuit for controlling and protecting the switchingapparatus provided by the invention can quickly output control and protection signals and has high anti-interference capability.

The invention provides an intelligent automobile safety air bag system and a control method and relates to the field of automobile safety. The system is characterized by comprising a sensor system, a processor system, a mobile control terminal and an air bag device; the sensor system comprises a horizontal acceleration sensor, a vertical acceleration sensor, a horizontal speed sensor, a vertical speed sensor and a pressure sensor; the processor system comprises a discriminator, a central processing unit and a self-checking unit; and the air bag device comprises a first safety air bag, a second safety air bag, a third safety air bag, a first gas generator, a second gas generator and a third gas generator. The system has the beneficial effects of being safe, reliable, accurate, individual and the like.

The invention discloses a transformer excitation surge current discriminating method based on sampling sequence absolute value skewed distribution. The method comprises steps that, a differential current for differential protection on a transformer is sampled through set sampling frequency; difference operation and absolute value taking operation for the sampling data are carried out, sampling data at the newest power frequency period is taken to calculate a skewed coefficient; if the skewed coefficient is greater than 0, the differential current is determined to be the excitation surge current, if not, the differential current is not the excitation surge current. The method has properties of intelligible criteria, small computational complexity, obvious distinction and rapid and accurate motion, has low hardware requirements for devices, and is convenient to realize with no need for personal value setting.

The invention discloses a fault arc protecting device and method. The fault arc protecting device comprises a control unit, a pulse detection circuit and a zero-crossing detection circuit, wherein the pulse detection circuit is used for sampling current signals of a protecting circuit to obtain detection circuit pulse signals and sending the detection circuit pulse signals to the control unit; the zero-crossing detection circuit sends trigger electric signals to the control unit when detecting that the current value of the current signals is zero; the control unit is used for conducting periodic analysis on the detection circuit pulse signals on the basis of the trigger electric signals so that fault arcs can be detected. The fault arc protecting device can shorten judgment time, increase response speed and protect the fault arcs more reliably and effectively.

The invention belongs to the technical field of power communication, in particular to an electric power information communication fusion monitoring and service standardization management platform system. The system is characterized by comprising an interface acquisition module, a monitoring fusion module, a data analysis module, a data screening module, a data white list module, a data integrationmodule, an alarm information automatic matching standardization process module, a standardization service system module and an ITIL standardization service system module. The interface acquisition module comprises at least two of six modules. Methods are also disclosed. The system and method mainly have the following beneficial technical effects: the electric power informatization equipment, thecommunication equipment and the Internet of Things equipment are subjected to fusion monitoring, automatic analysis of information communication professional fault processing is realized, fault closed-loop management is established, and the barrier of incompatibility among brands in the field of information communication is broken through; meanwhile, the fault judgment time is shorter, maintenanceis more timely, and early warning is more accurate; and the order sending of the power communication fault is more intelligent.

The invention discloses a blood gas acid-base analysis method, which comprises acquiring blood gas parameters of arterial blood; and substituting the blood gas parameters sequentially into a preset simple acid-base imbalance judgment condition, a dual acid-base imbalance judgment condition and a triple acid-base imbalance judgment condition, judging whether an acid-base imbalance condition exists,and outputting the judgment result. This method is used to determine the acid-base imbalance and, on the basis of a calculation formula of a body compensation prediction value, the relevant arterialblood gas value and serum electrolyte detection data are obtained, the judgment of the acid-base balance can be more accurate than that by a manual method and takes less time in the prior art, and theaccuracy rate of the clinician's judgment on the type of acid-base imbalance of a patient and the success rate of the rescue of critically ill patients can be greatly improved. The method of the invention can quickly and accurately judge the results to win the rescue time for the patient against time and, at the same time, greatly improves the work efficiency of the clinician, which is conduciveto early formulation of a diagnosis and treatment plan.

The present invention relates to parallel reactor relay protection technology for extrahigh and veryhigh voltage electric power system. It includes real-time digital collection, fast judging voltage abrupt reduction in failure phase based on sinusoidal theorem, fast calculation of dynamic impedance abrupt change in failure phase and impedance difference in different phases. The present invention judges the failure property via comparing the abrupt change in dynamic impedance of the failure phase and makes the failure phase to trip after re-judgement. According to the change of voltage, current and impedance of the various phases, different failures, including earthing inside winding, voltage transformer loop failure, turn to turn short circuit and winding open-circuit, may be judged.

The invention relates to a cheating behavior determination method and device, a storage medium and a computer device. The method comprises the steps of obtaining a video frame formed in a game process; extracting a pixel value of a target color from the video frame to obtain a frame image formed by the pixel value; determining that the video frame contains a virtual object displayed due to a perspective obstacle according to the frame image; when it is detected that a sighting device used for positioning the virtual object is started, determining that at least one virtual object exists in a view field area corresponding to the sighting device in the displayed virtual objects; and when it is detected that the projection operation is executed, judging that a cheating behavior exists in the game process. According to the scheme provided by the invention, the efficiency of judging cheating behaviors can be improved.

The application provides a password verification method and system. The method comprises the step that S1, an upper computer generates a PIN value; S2, the upper computer acquires a random number from a USBKEY; S3, an instruction data packet for PIN verification is generated; S4, the USBKEY parses the instruction data packet; and S5, parsed data are determined, and if the determination is successful, the PIN verification passes. According to the password verification method and system provided by the application, the real security of a verification password is ensured by performing asymmetric algorithm encryption on the random number, the length of a user PIN value and the user PIN value, so that the security level of the password is improved, PIN code information leakage is prevented, and higher-level attack to the USBKEY can be defended; and in addition, through grading verification on the random number, the length of the user PIN value and the user PIN value, the determination time is saved, the USBKEY response speed is higher, and the user experience is improved.

The present invention relates to protection technology for extrahigh and veryhigh voltage electric power system and is the fault-tolerant discrimination method for turn-to-turn shor-circuit protection of parallel reactor. It includes two parts of fault-tolerant discrimination method and real-time dynamic impedance compensation criterion. The fault-tolerant discrimination method includes reliable collection platform circuit and its use in collecting relevant data for fault-tolerant discrimination. The real-time dynamic impedance compensation is used for raising the sensitivity and reliability in judging the turn-to-turn shor-circuit failure of parallel reactor.

The invention discloses an identification method for excitation surge current of a transformer based on kurtosis and skewness. The identification method comprises the following steps: initially setting a first setting value, a second setting value and a third setting value, performing uniform continuous sampling on differential current of the transformer by adopting an assigned sampling frequency to obtain a sampling value sequence; if a current effective value of the differential current is smaller than the first setting value, exiting the procedure, and otherwise, aiming at the current sampling value sequence, calculating the kurtosis and the skewness of the differential current of the latest power frequency cycle; if the kurtosis is greater than the second setting value and the skewness is greater than the third setting value, judging that the transformer is in an operation state of the excitation surge current, and locking differential protection of the transformer, otherwise, judging that the transformer is in other non-excitation surge current operation states; returning to continuously process the current effective value of the differential current. The identification method disclosed by the invention has the advantages of obvious criterion distinguishing degree, high correctness of identification result, low requirement on hardware realization, short judgment time, good real-time property and low requirement on hardware of an implementation device.

The invention discloses a plug insert state detection device comprising a socket, a detection circuit, a single-chip microcomputer control module and a relay control module; the detection circuit is connected in series with the socket, and used for detecting load access information; the detection circuit is connected in parallel with the relay control module; the relay control module is used for controlling the socket to power on / off; the detection circuit is connected with the single-chip microcomputer control module, and sends a detection result to the control module; the single-chip microcomputer control module is used for sending an execution order to the relay control module; the current waveform detection method can accurately determine whether a load is connected with the socket or not, and the determination time is very short and can reach the millisecond level, thus effectively detecting a loosening plug, carrying out corresponding treatments, preventing plug loosening conditions, and preventing a series of problems and accidents caused by poor contacts.

The invention discloses a transient stability evaluation method and system suitable for large power grid operation, and the method comprises the steps: forming different power system operation data through the dynamic adjustment of the size of a load and generated output based on the operation data of a power grid; forming an N-1 fault set based on the power system operation data; calling time domain simulation software to perform time domain simulation on the N-1 fault set to obtain a time domain simulation result; discretization processing is carried out on a state quantity used as a representation power system in the time domain simulation result; performing supervised learning training on the state quantity subjected to discretization processing and the state quantity which is not usedas a representation power system in the time domain simulation result by adopting a depth tree model to obtain a transient stability judgment model; and testing the transient stability judgment model, and performing hyper-parameter adjustment according to a test result to obtain an optimal model. According to the method of the invention, the transient stability judgment method based on the depthtree method provides support for the rapid decision of the operation of the large power grid.

The invention discloses a multi-mode damping control system based on Internet of Vehicles for a vehicle suspension system. The system is composed of a GPS positioning module, a map data download module, an ECU, a damping control mode switching module, and an actuating mechanism, wherein the ECU is composed of a serial port communication module, an information processing module, a calculation module, and a road working condition discrimination module which are in series connection in sequence; and a current position and vehicle speed is obtained by utilizing a GPS, coefficients of road unevenness and road curvature in map data are obtained by utilizing the Internet of Vehicles, road conditions ahead are judged according to the obtained road information, the judgment time is short, responseis rapid, so that a damping control strategy most suitable for vehicles to be used in road conditions ahead is selected, and modes are switched quickly, so that the vehicles have the preview capability of coping with road changes, and smoothness and handling stability during a driving process are improved.

A current protection control method of a vacuum breaker includes the steps of: first sampling a current signal from a current transformer; then judging whether the sampled current signal is an overcurrent / short-circuit signal; if so, taking the sampled current signal as a parameter and calculating the current effective value; if the effective value is more than a setting value, conducting protection action; otherwise, continuing to sample. The steps for judging current signals are as follows: 2.1) first calculating the mutational volume iDelta-n of a group of sampling current signals of a plurality of continuous sampling points at intervals; if the mutational volume iDelta-n is more than a preset setting value iDelta-ns, entering into step 2.2); or if iDelta-n is no more than the preset setting value iDelta-ns, then continually calculating the mutational volume of current signals of next group of the sampling points, with the number of each group of sampling points being the same in the step; and 2.2) calculating the mutational volume iDeltak of each pair of adjacent sampling points in the group of sampling points, if each mutational volume iDeltak is more than the preset setting value iDelta1S, then judging the occurrence of overcurrent / short circuit, and entering step 3).

The invention discloses a method for controlling an electric tailgate, which relates to the field of control. The method comprises: driving the electric tailgate to run through an electric tailgate strut system, and determining the number of counting sensors in the nth time period of the electric tailgate running. A count value, and a second count value in the n+1th time period, calculate the count difference between the second count value and the first count value, and detect whether the count difference is within the difference range; if the count If the difference exceeds the range of the difference, the electric tailgate is controlled by the electric tailgate brace system to perform a preset anti-trap operation; the control method detects the difference between the count values ​​collected by the count sensor in two adjacent time periods. Judging whether the electric tailgate is blocked, and controlling the electric tailgate to perform anti-pinch operation when it is judged that it is blocked, the judgment time is short and the response speed is fast.

The invention provides an intelligent automobile safety air bag system and a control method and relates to the field of automobile safety. The system is characterized by comprising a sensor system, a processor system, a mobile control terminal and an air bag device; the sensor system comprises a horizontal acceleration sensor, a vertical acceleration sensor, a horizontal speed sensor, a vertical speed sensor and a pressure sensor; the processor system comprises a discriminator, a central processing unit and a self-checking unit; and the air bag device comprises a first safety air bag, a second safety air bag, a third safety air bag, a first gas generator, a second gas generator and a third gas generator. The system has the beneficial effects of being safe, reliable, accurate, individual and the like.

The invention discloses a method for controlling network access based on identification in an IP protocol. The method comprises the following steps: encrypting the identification in the IP protocol in a legal terminal computer network data packet; and deciphering the identification in the IP protocol in the network data packet received by a network safety control server, so that the network safety controller can accurately and quickly identify the legality of the terminal computer, thereby solving a problem that the network safety control server cannot judge the legality of the terminal computer when an NAT (Network Address Translator) is arranged between the terminal computer and the network safety control server and the source IP address of the TCP (Transmission Control Protocol) data packet sent by the terminal computer is converted. The method can be widely applied to various network structures.

The invention relates to the technical field of vehicle intellectualization, in particular to an automobile central control safety control system which comprises a mainboard system. The mainboard system comprises a central control processor, the central control processor is connected with a switching module, the switching module is connected with an auxiliary processor, and the auxiliary processor is connected with a backup memory; the central control processor is used for detecting whether the central control system crashes or not, and the central control processor is used for sending a switching instruction to the switching module when detecting that the central control system crashes; the switching module is used for receiving a switching instruction, and the switching module is used for handing over a control right for controlling various functions of the automobile to the auxiliary processor after receiving the switching instruction; the auxiliary processor is used for reading the temporary setting files of the various functions of the automobile in the backup memory to control the various functions of the automobile, and the backup memory is used for storing the temporary setting files of the various functions of the automobile. The technical problem that sudden crash of the central control system of the automobile cannot be handled in the prior art is solved.

The invention relates to a method for rapidly evaluating in-vitro antagonistic helicobacter pylori activity, and belongs to the technical field of microbiological detection. The method comprises the following steps of taking a sheep blood agar culture medium plate, coating the sheep blood agar culture medium plate with a bacterial suspension of helicobacter pylori, placing an oxford cup, adding ato-be-detected sample solution into the oxford cup, culturing for 3-5d, and measuring the diameter of an inhibition zone; and preparing to-be-detected sample solutions with different concentrations, respectively adding the to-be-detected sample solutions into 96-well plates, adding the sheep blood agar culture medium into each well while the goat blood agar culture medium is hot, mixing, adding the bacterial suspension of the helicobacter pylori into each well after the sheep blood agar culture medium is solidified, culturing for 3-5d, and determining the minimum inhibition concentration of the to-be-detected sample solutions on the helicobacter pylori. The method has the characteristics of simplicity, high efficiency, short judgment time, visual observation result and the like, meets therequirements of a helicobacter pylori in-vitro antagonism experiment method, and is suitable for multi-sample detection.

The invention provides a pile foundation rock-entering judgment method and system based on drilling machine current. The method comprises the steps that constructing a pile foundation rock stratum strength and drilling machine real-time current function relational expression; performing trial hole forming in the to-be-constructed area, and obtaining first real-time current data in the drilling process of the drilling machine; correcting the function relational expression according to the first real-time current data, and establishing a pile foundation rock-entering judgment standard; and acquiring a second real-time current of the drilling machine in pile foundation pore-forming construction, comparing the second real-time current with the pile foundation rock-entering judgment standard, and judging that the pile foundation enters the rock when the second real-time current meets the pile foundation rock-entering judgment standard. The rock-entering judgment standard is obtained by constructing the function relation between the pile foundation rock stratum strength and the real-time current strength of the drilling machine, the current of the drilling machine is judged in real timeaccording to the rock-entering judgment standard, core drilling or rock slag analysis is not needed, the judgment time is saved, the engineering cost is reduced, and the judgment accuracy is guaranteed.

The invention provides an operation and maintenance method and apparatus, an electronic device and a computer-readable storage medium. The operation and maintenance method comprises the following steps: receiving fault information; obtaining a pre-configured failure data set; determining, from the fault data set, a fault matching the fault information as a target fault; obtaining a pre-configuredoperational dimension data set; determining operational dimension data from the operational dimension data set based on the target failure. The invention is based on intelligent prediction of big dataanalysis, At first, that target fault is determined according to the fault information and the fault data set, so as to predict the operation of the system, The automatic determination of the targetfailure effectively reduces the human cost, and the mechanized operation mode more saves the judgment time, and the operation dimension data can be determined according to the target failure and the operation dimension data set, so that the required operation dimension data can be quickly matched, the work intensity of the operation maintenance personnel can be reduced, and the development of theenterprise is more favorable.

The invention discloses an early pregnancy test paper combined device. The early pregnancy test paper combined device comprises a test paper strip and a test paper tray, the separating block is provided with three mounting positions for test papers at different concentrations in the vertical direction, namely a first test paper is arranged in a first open cavity at the upper end, a second test paper is arranged in a second cavity at the middle part, and a third test paper is arranged in a third cavity at the lower end; and an HCG antibody concentration sensor is arranged in each cavity and used for transmitting detected data to a receiving terminal. The early pregnancy test paper combined device has the advantages that whether reaction process of the test paper is carried out or not is judged by adopting the redundancy judging manner, accuracy of the judging process is greatly improved, subjective factors are eliminated, judgement is made by virtue of control equipment, judgement time is short, and judgement result is accurate.

The invention discloses a novel identity card intelligent lock system. The novel identity card intelligent lock system has the advantages that person-card united verification can be carried out by anintelligent lock according to fingerprint information in identity cards, an open verification method is implemented, recognition for the loss-reported identity cards and alarm for the identity cards of personnel wanted for arrest can be supported, accordingly, person-card united verification and recognition and alarm for the personnel wanted for arrest can be carried out in the homestay industry just like hotels, alarm functions are identical to alarm functions of the hotels, alarm can be directly given to local police stations, alarm can be carried out in the homestay industry according to original alarm modes of the hotels for the personnel wanted for arrest, and the novel identity card intelligent lock system is free of additional new processes and the training expenses for personnel for implementing the new processes.

The invention belongs to the technical field of ship collision avoidance, and discloses a collision avoidance steering judgment method conforming to an international seaborne collision avoidance rule, which comprises the following steps of: acquiring information such as speed, course, position and the like of a ship and an encountering ship according to a ship sensing and navigation system, and calculating the minimum encountering time; judging whether a collision risk exists or not according to the calculated minimum meeting time; if the collision danger does not exist, the ship does not take collision avoidance measures and continues to sail along the original track; if the collision danger exists, a collision avoidance steering judgment model is built with the ship as the center, and the steering range meeting the international maritime collision avoidance rule requirement is determined. According to the ship collision avoidance steering judgment method conforming to the international maritime collision avoidance rule, the problem of how to quickly convert steering obligations conforming to the international maritime collision avoidance rule into digital collision avoidance steering when the ship encounters collision danger is solved, and the standard degree and safety of ship navigation are improved.

The invention relates to a method for identifying a permanent fault of an ultrahigh voltage overhead-cable hybrid transmission line. The method is applied to a hybrid transmission line with a paralleling reactor and comprises the following steps: collecting a restoring voltage of a fault phase after a hybrid line is subjected to single-phase earth fault and the electric arc is extinguished; restoring a pole corresponding to a voltage power frequency component and a pole corresponding to a voltage attenuation periodic component; acquiring the frequency f of the attenuation periodic component; comparing the frequency f of the attenuation periodic component with a setting value Kfset, wherein K is a margin coefficient and fset is the frequency for restoring the voltage power frequency component calculated according to the parameters of the hybrid transmission line; confirming the fault as the permanent fault if f is not more than Kfset all the time within a set time period. According to the method, the identification for the permanent fault of the ultrahigh voltage overhead-cable hybrid transmission line can be reliably realized.

The invention relates to a metering device fault judgment method based on four-quadrant electric energy data, and the method comprises the steps of obtaining the electric energy data collected by a metering automation terminal, filtering the electric energy data, and obtaining tide reverse data; determining corresponding identification information according to the tide reverse data, and calling historical data in a preset time period from a database through the identification information, wherein the historical data comprises four-quadrant electric energy data; determining the active electricquantity and the reactive electric quantity of the four-quadrant electric energy data at each continuous moment, performing comparative analysis on the active electric quantity and the reactive electric quantity, and judging whether a metering device corresponding to the identification information has a fault or not according to an analysis result; according to the invention, the four-quadrant electric energy data is used for analyzing the tide reverse data, manual operation is not needed in the process, the judgment time is short, the labor cost and the time cost are greatly reduced, and meanwhile the working efficiency is effectively improved.

The invention belongs to the technical field of dairy products, and provides a method for quickly judging the stability of long-shelf-life drinking yoghourt. The method comprises the following steps:step A, charging nitrogen into a sample to be detected in a sterile environment, keeping the nitrogen-charged sample to be detected at the constant temperature of 37 + / -2 DEG C, and performing standing for 48 hours; and step B, recording the bottom drainage height of the sample to be detected, and judging the stability result of the sample to be detected. By means of the technical scheme, the problem that in the prior art, the stability judgment period of yoghourt drunk for a long shelf life is too long is solved.