40results about How to "Solve judgment problems" patented technology

The invention relates to a method for analyzing active access behaviors of internet users, and belongs to the field of big data analysis. The method comprises the following steps: constructing a user session (session) according to DPI spectral data of users for accessing the internet, analyzing the behavior tracks (Click behavior tracks) of the users for actively accessing the internet and generated affiliated pages through user behavior analysis. The core technology of the method is how to judge which pages in a click page set are click pages and which pages are affiliated pages (Hits or PageViews) generated by the click pages. Through the method, the behavior tracks of the users for actively accessing the internet can be visually and clearly analyzed.

The invention discloses a method for judging a locked-rotor state of a position-sensorless vector control permanent magnet synchronous motor. The method comprises the steps of A, calculating input power Pin and output power Pout of the motor; B, calculating an error value ERR, wherein ERR=abs(Pin-K1*Pout), and K1 is a coefficient; C, judging whether ERR is greater than or equal to a certain presetvalue P0 or not, if so, returning to the step A, and if not, judging that the motor is in a locked-rotor state, namely, an abnormal steady-state closed-loop state, and entering a step D; and D, blocking the pulse signal output to the inverter by a motor microprocessor. According to the invention, the locked-rotor state of the motor can be accurately judged, the motor is prevented from still entering the steady-state closed-loop state when being changed into the locked-rotor state, the motor is enabled to be in a high-frequency small-amplitude oscillation state, a protection strategy is perfected, the motor is effectively protected, the judgment problem of the locked-rotor state is fundamentally solved, modification is not needed after load replacement, and great convenience is brought tousers.

Objectives of the present invention are to provide a rumor detection method and device. The method comprises: through a rumor determination module, calculating to obtain probabilities of being able todetermine a rumor and of being unable to determine a rumor; after continuously inputting a certain message matrix into a GRU unit, if the correspondingly calculated probability of being able to determine a rumor is greater than a preset threshold, stopping continuously inputting the next message matrix to the GRU unit; and sending the last updated GRU unit status to the determination module for processing. The technical scheme of the present invention aims to solve the problem of the time at which an automated decision is made to perform event rumor determination, namely the time point at which accurate determination can be performed as early as possible.

The invention provides a method and apparatus for determining a UE ownership AP, and belongs to the field of wireless communication. The method comprises: respectively measuring the uplink channel quality of multiple APs from within UE to the same logic cell, and selecting an AP primary selection subset from the multiple APs according to obtained uplink channel quality information; and measuring the downlink channel quality from the APs in the AP primary selection subset to the UE, and determining the ownership APs of the UE according to obtained downlink channel quality information. The technical scheme provided by the invention can solve the problem of determining the ownership APs of the UE in a networking type in which multiple points belong to the same logic cell, and can apply a determining result to the switching of the ownership APs.

The invention discloses a printed document evidence obtaining method for detecting authenticity of a document by using half-tone information, which belongs to the technical field of signal and information processing. The method is characterized by comprising the following steps of: after the document is printed twice, introducing sine noise into the document so that the printed document has half tone and generates four peak values in four quadrants of a frequency spectrum thereof; and obtaining an image block of each character through character partition, solving and normalizing a logarithm amplitude spectrum of the image block, designing a band-pass filter function with a peak value in four quadrants, judging whether the half tone exists by calculating the correlation between the normalized logarithm amplitude spectrum and the band-pass filter function, and further judging whether the printed document is subjected to secondary printing falsification. The method has the advantage of automatically judging whether each character image of the printed document has half tone to identify whether the document is subjected to the secondary printing falsification.

The invention discloses an intelligent noise acquisition device for a mobile inspection platform. The intelligent noise acquisition device is characterized in that: firstly, two omnidirectional noise sensors are used for picking up and outputting noise signals, and sound waves are filtered by using the difference between phases of the sound waves received by the two omnidirectional noise sensors; and then two directional noise sensors are used for picking up noise signals, judging whether the noise is from a target sound source or not, further removing the noise signals of a non-target sound source in a shielding manner, and leaving the noise signals of target equipment, so that the environment background sound can be eliminated to the maximum extent, and only required sound waves are left. When the intelligent noise acquisition sensor is adopted on the inspection platform, noise signals of monitoring equipment can be distinguished more simply and quickly in a noisy environment, noise features are easy to extract, abnormal noise signals are found in time, and noise categories are diagnosed.

The invention discloses an MR Sensor-based mobile phone state identification method and a mobile phone. The method comprises the following steps of: 1, arranging at least one MR Sensor on the edge of an upper cover of the mobile phone; 2, arranging at least one magnet on the edge of a lower cover of the mobile phone in a way that a magnetic line of force of the magnet can horizontally run through the MR Sensor; 3, folding and unfolding the upper and lower covers of the mobile phone, and performing magnetic field induction detection on the MR Sensor; and 4, feeding a detection signal induced by the MR Sensor back to a central processing unit. The mobile phone capable of performing mobile phone state identification by using the MR Sensor comprises the central processing unit arranged in the mobile phone, and the magnet and the MR Sensor which are at least arranged on the upper and lower covers of the mobile phone respectively, wherein the magnetic line of force of the magnet horizontally runs through the MR Sensor when the upper and lower covers of the mobile phone are folded. The mobile phone is high in identification sensitivity, low in manufacturing cost and convenient to operate; and the method is used for identifying and judging the folding and unfolding state of various mobile phones.

The invention provides a hydraulic turbine set remote listening monitoring method, device and system. The method comprises the following steps: acquiring an original audio signal of a preset duration; performing data noise reduction on the original audio signal to obtain a target audio signal; performing characteristic extraction on the target audio signal to obtain a target characteristic value; and inputting the target characteristic value into a target fault model for fault detection to obtain a detection result of the original audio signal. Therefore, the problem that in the prior art, sound characteristics cannot be monitored or judged when the hydraulic turbine set runs is solved, on-site sound is analyzed and processed on line through the audio analysis technology, the remote listening of the hydraulic turbine set is achieved, and the requirement for monitoring the running state of the hydraulic turbine set is met.

The invention provides a detection method for an automobile girder. The detection method comprises the steps of performing tensile test on the automobile girder and detecting yield strength of the automobile girder, if the yield strength is not detected, tensile strength and elongation of the automobile girder are tested; if the tensile strength does not fit a first predetermined index and/or the elongation does not fit a second predetermined index, it is determined that a yield phenomenon exists in the automobile girder and the test is finished; and if the tensile strength fits the first predetermined index and/or the elongation fits the second predetermined index, a chemical composition test and a metallographic structure test are performed on the automobile girder. According to the detection method for the automobile girder provided by an embodiment of the invention, a determination problem when the yield phenomenon does not exist in tensile test of the automobile girder is effectively solved, tensile test results can be provided scientifically, rapidly and accurately, and mechanical properties of the automobile girder can be better controlled.

The invention discloses a method and device for judging overvoltage in a power grid, which comprises the following steps: setting of measuring equipment: respectively setting measuring equipment for real-time measurement of three-phase information and grounding circuit information in a three-phase circuit and a grounding circuit, Respectively the first measuring device, the second measuring device, the third measuring device and the fourth measuring device; Current, get Ia, Ib, Ic and Io; Judgment of overvoltage: According to the comparison of the values ​​of Ia, Ib, Ic and Io at the same time, judge whether it is an overvoltage phenomenon. The method of the invention is simple and the steps are concise.

The invention discloses a depth image error point removal method combining image semantics and three-dimensional information, which comprises the following steps: 1) collecting input data including a color image and a depth image with error points; 2) inputting a color image, and predicting a normal of the color image through a residual convolutional neural network; inputting a depth image with error points, and calculating a normal of the depth image by adopting a principal part analysis method; 3) inputting a color image marked with a potential depth image error point region, and predicting the potential depth image error point region in the color image through a convolutional neural network with cavity convolution; projecting a potential depth image error point region and two normal lines to three dimensions; and 4) calculating two normal differences of each point in the local neighborhood in three dimensions and the local density of each point to eliminate depth error points. The method has the advantages that the quality of the depth image is improved, and the effectiveness of restoring the depth image with noise by application such as depth completion is improved.

The invention discloses an acetate fiber tow splicing section detection method and device, and the method comprises the steps: enabling visible light to penetrate through a tow, enabling the visible light to be reflected by a reflector, enabling the visible light to penetrate through the tow again, and enabling the visible light to enter an illuminance array sensor; obtaining an illuminance data column according to the reflected light received by the illuminance array sensor; calculating illuminance average data according to the illuminance data column, and calculating the width of the tow; dividing the illuminance data column into a background data column and a target data column, and calculating average illuminance data of the target data column; and judging the current tow state according to the tow width and the average illuminance data of the target data column. According to the acetate fiber tow splicing section detection method and device, based on the illuminance detection technology, the corresponding absorption wave band of the tow is adopted as a light source to irradiate the tow, receive the emitted light of the tow, detect the reflected illuminance and carry out data processing so as to judge which working condition the tow is in currently, and the accuracy and effectiveness of equipment removal are improved; and material loss is reduced.

A transmission and transformation project foundation holographic detection device based on laser ranging disclosed by the present invention comprises a device shell, a wireless transmitting device is arranged in the device shell, the wireless transmitting device is in communication connection with a receiver, and the upper end face of the device shell is provided with a pinch roller, a groove and a linear wheel. The groove is located in the middle of the equipment shell, the two pressing wheels are symmetrically distributed on the two sides of the top end of the groove, and the two linear wheels are symmetrically distributed on the two sides of the bottom end of the groove. The problems that in existing basic detection, the personnel safety risk is high, the detection result precision is poor, and fact observation and judgment cannot be carried out are solved, so that potential safety hazards of manual measurement are effectively reduced, meanwhile, the measurement accuracy is improved, measured data and stroke three-dimensional images can provide a substantive basis for the project settlement stage, and the engineering cost is reduced. Therefore, the working efficiency and the economic benefit of detection are improved.