32results about How to "Judgment method is accurate" patented technology

The invention discloses an intelligent in-event disposal-based security protection method and system. The security protection method includes the following steps that: the characteristic information of an environment is sensed; the weight of each kind of characteristic information is set, and calculation is carried out according to the danger value and weight of each kind of information so as to obtain a danger superposition value; the danger superposition value is compared with a danger threshold value, so that the danger level of the onsite environment is judged, if the onsite environment is dangerous, alarm signals of different levels are sent to a monitoring end, and a matched disposal program is generated at the same time; the disposal program is automatically implemented, or an automatic program is terminated by a supervisor, and violence is stopped through remote control or onsite violence suppression is implemented. With the intelligent in-event disposal-based security protection method and system of the invention adopted, background supervisors can obtain alarm information directly through visual sense and auditory sense; and information such as the facial and behavior characteristics of onsite people, the shapes and attributes of objects, and surrounding environment can be sensed intelligently and judged, and the in-event disposal of a dangerous event can be realized automatically. The intelligent in-event disposal-based security protection method and system of the invention have the advantages of intelligent and comprehensive alarm signal collection, high accuracy, timely onsite disposal and high practicability; and the popularization and use of the method and system can be favored.

This invention relates to a variety of quality management methods of multimedia conversational service in wireless network convergence environment. It includes: user II sends a one-way multimedia sessions to user I, when user I decides to switch his terminal, he must do the following steps: A1) user I will judge the type of the target network when switching happens; A2) user I sent a switch signal to the user II, the switch signal records the type of the target network; A3) users II receives the switch signal which is sent in the steps A2) by users I, and then adjusts the local audio / video encoding rate according to the type of the target network in the switch signal; A4) after the step A3), user II sends a switch confirmed signal back to the user I; A5) user I waits for the switch confirmed signal of user II after the steps A2), when It receives the switch confirmed signal, implement of switching immediately. The invention can improve service quality of multimedia communication effectively.

The invention discloses a method for monitoring the operating state of a power transformer on line under the direct-current magnetic bias condition. The method comprises the following steps that a vibration signal of the wall of a transformer tank, a three-phase voltage signal of the transformer, a three-phase current signal of the transformer and a neutral-point direct current are collected; based on the K-means cluster analysis method, a transformer vibration cluster model is built; the amplitude of the 100Hz component of the measured vibration signal of the wall of the transformer tank is compared with the output quantity of the transformer vibration cluster model, and if the relative error between the amplitude and the output quantity is smaller than a threshold value, it is determined that the operating state of the transformer is normal; if the relative error between the amplitude and the output quantity is greater than or equal to the threshold value, it is determined that the operating state of the transformer is abnormal. The method can be used for effectively and highly sensitively monitoring the operating state of the transformer on line under the direct-current magnetic bias condition, and therefore transformer direct-current magnetic bias effective measures can be taken timely, alternatively the transformer can be maintained timely, and major faults are avoided.

The invention discloses a user perception and analysis method and system based on mobile Internet videos. The method comprises the following steps: defining a video business behavior; analyzing a video format to obtain relevant video parameters comprising a video definition buffer time, a video resolution and video content packet format analysis; designing a video business perception and analysis method with a pressure valve leakage bucket as the principle in combination with self video definition, SP definition, operating system definition and other various conditions that affect video playing, judging initial video buffer completion, video blockage occurrence and playing recovery conditions based key parameters based on video perception, and accurately feeding back real perception conditions of a user and video business conditions. By adopting the user perception and analysis method and system disclosed by the invention, the user perception definition accuracy of the video business having the maximum single business traffic of the mobile networking user can be improved, and the network conditions of the mobile Internet and auxiliary problem positioning can be embodied through the business indexes obtained by analysis.

The invention discloses an automobile battery state monitoring and warning system and method. The system includes a battery sensing unit, a BCM (Body Control Module), a combined instrument unit, an on-board T-BOX unit and a handheld terminal. The battery sensing unit is installed at the negative end of a battery, and is electrically connected with the BCM. The BCM is electrically connected with the combined instrument unit and the on-board T-BOX unit. The on-board T-BOX unit wirelessly communicates with the handheld terminal. The battery sensing unit detects the discharge current, internal resistance and state of charge (SOC) of the battery in real time, and transmits the discharge current, internal resistance and SOC of the battery to the BCM for judgment. When the power of the battery islow or the life of the battery is expired, the BCM sends alarm information to the combined instrument unit for display or sends alarm information through the on-board T-BOX unit to the handheld terminal for display. The owner can be notified of the accurate state of the battery, and the user experience can be enhanced.

The invention relates to the field of bottle airtightness detection, and discloses a method and device for detecting air leakage of a beverage bottle. According to the invention, one conveying assembly is used for conveying the beverage bottle, and double cams are employed for pressure detection. The two cams are respectively provided with two independent pressure detection devices. When a to-be-detected beverage bottle enters a detection region, the to-be-detected beverage bottle sequentially passes through the two cams, and the pressure detection devices respectively read the data for two times and transmit the data to a controller. The controller judges whether the air pressure in the to-be-detected beverage bottle changes or not through the comparison of the data, and judges whether the to-be-detected beverage bottle leaks air or not. According to the above scheme of the invention, the device can guarantee the production speed of an industrial assembly line, and also can guarantee the detection accuracy.

The invention relates to a line loss judgment method and device, equipment, a storage medium and a program product. The method comprises the following steps: obtaining a theoretical line loss table of a power supply line in a plurality of historical time periods, obtaining a difference value between the number of metering devices in the current time period of the power supply line and the number of metering devices in each historical time period, and comparing the difference value with a preset threshold value; and judging whether the actual line loss of the current time period is normal or not according to the comparison result and the theoretical line loss and the line loss date of each historical time period. According to the method, the number of the metering devices in the current time period and the number of the metering devices in the plurality of historical time periods of the power supply line are compared, whether the actual line loss is normal or not is further judged according to the difference between the different numbers of the metering devices, and misjudgment of the line loss value caused by the loss of the metering devices and the difference of the numbers of the metering devices is fully considered; the method for judging the line loss is more accurate, and the method for obtaining the number of the metering devices is simple and high in operability.

The invention provides a control method for preventing a washing machine drain valve from leaking water. A washing machine executes a drain valve water leakage control program before water inflow or after drainage. The drain valve water leakage control program comprises the step of controlling the drain valve to execute switching-on and switching-off motions again after the drain valve is shut down. The invention also provides a washing machine adopting the control method. According to the control method for preventing the washing machine drain valve from leaking water, no matter whether there are impurities between a valve plug and a valve body, it can be guaranteed that the valve plug and the valve body can be sealed completely after the drain valve is switched off again. Therefore, according to the control method for preventing the washing machine drain valve from leaking water, control logic of priority judgment is adopted, and the control method is easy to implement and easy to control.

The invention provides a nanofluid stability monitoring system and method. The system comprises a sample containing system, an absorbance testing system, a viscosity testing system, a surface tensiontesting system and a data acquisition system which are arranged in an inner cavity of a device housing. The sample containing system comprises a visual sample chamber placed on the rotating platform.A to-be-monitored nanofluid is contained in the visual sample chamber. The monitoring method of the monitoring system comprises the steps of transmitted light intensity collection, surface tension data collection, viscosity data collection, photographing recording and the like. The device not only can realize real-time observation of the stability of the nanofluid, but also can realize real-time recording of physical parameters of a system, more comprehensively represents the stability change of the nanofluid, is beneficial to scientific and accurate analysis of the stability of the nanofluidat the same time, and realizes a good synergistic effect of various stability representation methods.

The invention provides a method for recognizing the water breakthrough rule of a fractured reservoir. The method includes the steps of firstly, obtaining related production data of a mine production well; secondly, generating a daily water content variety curve of a fractured reservoir production well according to the related production data of the mine production well; thirdly, dividing water content variety stages of the fractured reservoir production well; fourthly, determining the included angle phi formed when regression equations of two adjacent water content variety stages intersect; fifthly, counting the range of the included angles phi formed by all different water content stages of the production well; sixthly, providing the range of the included angles phi during water breakthrough of the production well through the combination of geological information and experiences, and determining the water breakthrough time. The method is reasonable, accurate, simple and easy to operate, and the problem that the water logging time of an existing fractured reservoir production well can not be clearly learned is effectively solved.

The invention discloses a board surface waterborne paint drying device. A hydraulic cylinder enabling containing bases to pass through a roller shutter door is arranged at the bottom of the inner wallof one side of a drying box, the containing bases are arranged on the hydraulic cylinder, and a rotating shaft used for enabling the containing bases to rotate in the vertical direction is arranged between the containing bases and the hydraulic cylinder; each containing base comprise struts and a plurality of supporting plates arranged on the struts in a stacked manner, a plurality of air holes are evenly formed in the supporting plates, the upper surfaces of the supporting plates are evenly provided with parallel separating plates, the separating plates are arranged in an inclined manner relative to the supporting plates to be used for containing to-be-dried boards; spiral air grooves used for guiding the direction of hot airflow are spirally formed in the inner wall of the drying box, aplurality of air inlets are evenly distributed in the bottom of the drying box, and the jetting directions of the air inlets are matched with the spiral air grooves; and a humidity sensor is arrangedinside the drying box. The board surface waterborne paint drying device is high in drying efficiency, and the manner for judging whether paint is dried or not is simple and accurate.

The invention relates to a touch operation identification method and device, a mobile terminal and a storage medium. The touch operation identification method comprises the following steps: receivinga current touch operation; determining the last touch operation as a tapping operation; and determining that the current touch operation is still the tapping operation according to the position of theprevious tapping operation, the position of the current touch operation and the interval duration between the current touch operation and the previous tapping operation. According to the touch operation identification method, when the last touch operation is the tapping operation, the currently received touch operation does not need to be analyzed and calculated by using an algorithm, and whetherthe current touch operation is the tapping operation or not is determined according to the position of the last tapping operation and the position of the current touch operation as well as the time interval between the two taps. A judgment method is simple, accurate and efficient, the operation complexity is reduced, occupation of terminal equipment resources is reduced while misjudgment is effectively avoided, and use experience of a user is improved.

The invention provides a method for recognizing the water breakthrough rule of a fractured reservoir. The method includes the steps of firstly, obtaining related production data of a mine production well; secondly, generating a daily water content variety curve of a fractured reservoir production well according to the related production data of the mine production well; thirdly, dividing water content variety stages of the fractured reservoir production well; fourthly, determining the included angle phi formed when regression equations of two adjacent water content variety stages intersect; fifthly, counting the range of the included angles phi formed by all different water content stages of the production well; sixthly, providing the range of the included angles phi during water breakthrough of the production well through the combination of geological information and experiences, and determining the water breakthrough time. The method is reasonable, accurate, simple and easy to operate, and the problem that the water logging time of an existing fractured reservoir production well can not be clearly learned is effectively solved.

The invention relates to the field of IPTV set top boxes, and particularly relates to a method for overcoming PPPOE dialing failure of an IPTV set top box. An optical modem is connected with a centraloffice device and an IPTV set top box separately, the optical modem is provided with a session detection module, a session recording module, a link sate sensing module, and a session clearing module,which are used for completing an information processing procedure and a troubleshooting procedure, the information processing procedure and the troubleshooting procedure are performed at the same time, the session detection module monitors a message received and transmitted by the optimal modem at any time, the link sate sensing module monitors an optimal modem LAN port, and determines whether dialing failure occurs, the session recording module creates a session recording file, the session clearing module reads the session recording file established by the session recording module, fills a PADT message with the session recording file, sends the PADT message, and terminates a PPPOE session between the IPTV set top box and the central office device. All modules perform respective functionsand run synchronously, thereby discovering and solving the dialing failure problem at fastest speed, improving efficiency and improving user favorability.

The invention discloses a transformer on-load tap-changer mechanical condition monitoring method. The method includes collecting a vibration signal during the switching of a transformer on-load tap-changer; calculating the embedding dimension of the vibration signal; calculating the scale factor of the vibration signal, and performing coarse graining processing on the vibration signal so that a reconstruction matrix can be obtained; performing dimensionality reduction and decomposition on the reconstruction matrix; performing symbolization and coding processing on the row vector in the reconstruction matrix after dimensionality reduction so that the shape characteristic sequence of the vibration signal can be obtained; and calculating the similarity of the shape characteristic sequence ofthe vibration signal of a to-be-detected tap-changer and the shape characteristic sequence of a history vibration signal, and judging the mechanical condition of the tap-changer through the similarity. The method can effectively and highly sensitively monitor the mechanical conditions of transformer on-load tap-changers on line, and therefore, the timely overhaul or replacing of the tap-changers can be realized, and the operation reliability of the tap-changers and transformers can be enhanced.

The invention provides an intelligent evaluation system for a table tennis training machine. The intelligent evaluation system comprises a table tennis drop point image acquisition part, an image processing part and an intelligent evaluation part, a piece of marking gridding tablecloth is spread on a table board, a camera shoots the marking gridding tablecloth, an upper computer is connected with the camera through a video acquisition card, video processing software in the upper computer processes video images, the upper computer is connected with a lower computer singlechip system through an RS-232 serial port, and the singlechip system is connected with an LED display screen. The intelligent evaluation system achieves intelligent evaluation function of the table tennis training machine through identifying drop point positions of table tennis and assessing the hitting effect.

The invention discloses a method for on-line monitoring of the state of transformer windings based on cluster analysis, which comprises: collecting vibration signals of the transformer box wall, and standardizing the collected vibration signals; intercepting the normalized processed vibration signals to obtain m groups of vibration signals; perform cluster analysis on the m groups of vibration signals of the transformer to obtain the transformer vibration characteristic curve; the calculation cluster is C t (k) Various types of vibration signals in the transformer vibration characteristic curve Z t The rate of change of the curve Y ci The root mean square value, and the average value of the root mean square value is Y cm ;Calculate the vibration curve y′ of the transformer to be detected c Relative to the transformer vibration characteristic curve Z t The rate of change of the curve Y' c The mean square value Y' of cm ; put Y' cm with Y cm To compare, Y' cm ≤Y cm Then it is judged that the transformer winding is running normally; Y′ cm >Y cm Then the transformer winding is loose or deformed; this method can effectively and highly sensitively monitor the looseness and deformation of the transformer winding on-line.

The invention discloses an automobile battery state monitoring and warning system and method. The system includes a battery sensing unit, a BCM (Body Control Module), a combined instrument unit, an on-board T-BOX unit and a handheld terminal. The battery sensing unit is installed at the negative end of a battery, and is electrically connected with the BCM. The BCM is electrically connected with the combined instrument unit and the on-board T-BOX unit. The on-board T-BOX unit wirelessly communicates with the handheld terminal. The battery sensing unit detects the discharge current, internal resistance and state of charge (SOC) of the battery in real time, and transmits the discharge current, internal resistance and SOC of the battery to the BCM for judgment. When the power of the battery islow or the life of the battery is expired, the BCM sends alarm information to the combined instrument unit for display or sends alarm information through the on-board T-BOX unit to the handheld terminal for display. The owner can be notified of the accurate state of the battery, and the user experience can be enhanced.

The invention relates to the field of petroleum engineering and discloses a device and method for testing the proppant laying of an API flow guiding chamber. A signal generator is connected to a probe, the probe is arranged at an outlet end of the flow guiding chamber, and a silicone film is arranged in the flow guiding chamber and is used for wrapping a proppant. Parts of the proppant facing theoutlet end and an inlet end of the flow guiding chamber are exposed, and a signal emitting end of the probe faces an exposed side of the proppant. A piezoelectric sensor is arranged at an inlet end ofthe flow guiding chamber and faces the other exposed side of the proppant, and the piezoelectric sensor is connected to a data analysis and processing device and is used for receiving a vibration signal and transmitting the vibration signal to the data analysis and processing device, and the data analysis and processing device is used for receiving the signal of the piezoelectric sensor and drawing a time domain map by using the signal. Whether the laying of the proppant is uniform can be judged by using the time domain map. The method of the invention has the advantages of simple principle and easy implementation, the laying of the proppant can be accurately judged, and more accurate and effective experimental data is obtained.

The present invention relates to a multi-media conversation service quality management method in a variety of wireless network convergence environments, including: user II is conducting a one-way multimedia conversation with user I, and when user I's terminal decides to switch, perform the following steps: A1) user I Judging the target network type to be switched into; A2) user I sends a switching notification signaling to user II, which records the target network type in the switching notification signaling; A3) user II receives the user I sending in step A2) The switching notification signaling of the signaling, and then adjust the local audio / video encoding rate according to the target network type in the signaling; A4) after step A3) ends, the user II sends back a switching confirmation signaling to the user I; A5) the user I is in After step A2), wait for the handover confirmation signal from user II, and perform handover immediately when receiving the handover confirmation signal. The method of the invention can effectively improve the service quality of multimedia communication.

The invention discloses an intelligent in-event disposal-based security protection method and system. The security protection method includes the following steps that: the characteristic information of an environment is sensed; the weight of each kind of characteristic information is set, and calculation is carried out according to the danger value and weight of each kind of information so as to obtain a danger superposition value; the danger superposition value is compared with a danger threshold value, so that the danger level of the onsite environment is judged, if the onsite environment is dangerous, alarm signals of different levels are sent to a monitoring end, and a matched disposal program is generated at the same time; the disposal program is automatically implemented, or an automatic program is terminated by a supervisor, and violence is stopped through remote control or onsite violence suppression is implemented. With the intelligent in-event disposal-based security protection method and system of the invention adopted, background supervisors can obtain alarm information directly through visual sense and auditory sense; and information such as the facial and behavior characteristics of onsite people, the shapes and attributes of objects, and surrounding environment can be sensed intelligently and judged, and the in-event disposal of a dangerous event can be realized automatically. The intelligent in-event disposal-based security protection method and system of the invention have the advantages of intelligent and comprehensive alarm signal collection, high accuracy, timely onsite disposal and high practicability; and the popularization and use of the method and system can be favored.

The invention discloses an on-line monitoring method for the operation state of a power transformer under the condition of DC bias, comprising the following steps: collecting vibration signals of the transformer box wall, three-phase voltage signals of the transformer, three-phase current signals of the transformer and neutral point DC current; The transformer vibration clustering model is established based on the K-means clustering analysis method; the measured amplitude of the 100Hz component of the transformer box wall vibration signal is compared with the output of the transformer vibration clustering model. If the relative error between the two is less than a threshold , then it is judged that the transformer is operating normally; if the relative error between the two is greater than or equal to the threshold, it is judged that the transformer is operating abnormally. The method can effectively and highly sensitively monitor the operating state of the transformer under the condition of DC bias on-line, so that effective measures for the DC bias of the transformer can be taken or the transformer can be repaired in time to avoid the occurrence of major faults.

The invention discloses a gait analysis method. A six-axis acceleration sensor at least collects acceleration data in the three directions of space X, Y, and Z; the steps of the judging method are as follows: 1) positioning the time point of complete landing; 3) single-step signal division; 4) calculate the size of the angle; 5) judge the way of landing; 6) judge the internal rotation and external rotation of the foot; 7) judge the running mode. This method can realize real-time detection and analysis of the user's gait through real-time collection and algorithm processing of various parameters based on the user's feet during walking or exercise, and the analysis process is convenient and fast with high accuracy, which is conducive to the early detection of athletes. Make corrections.

The invention discloses a user perception and analysis method and system based on mobile Internet videos. The method comprises the following steps: defining a video business behavior; analyzing a video format to obtain relevant video parameters comprising a video definition buffer time, a video resolution and video content packet format analysis; designing a video business perception and analysis method with a pressure valve leakage bucket as the principle in combination with self video definition, SP definition, operating system definition and other various conditions that affect video playing, judging initial video buffer completion, video blockage occurrence and playing recovery conditions based key parameters based on video perception, and accurately feeding back real perception conditions of a user and video business conditions. By adopting the user perception and analysis method and system disclosed by the invention, the user perception definition accuracy of the video business having the maximum single business traffic of the mobile networking user can be improved, and the network conditions of the mobile Internet and auxiliary problem positioning can be embodied through the business indexes obtained by analysis.

The invention relates to a traffic jam detection method, and belongs to the technical field of vehicle detection. The method comprises the following steps that (a) a detection area in the length of 200m is selected, and a passive infrared thermal imager in the frame frequency of 25 frames / second is used to obtain images in the detection area; (b) if the same vehicle is found in the detection areain 5 continuous frames, it is shown that the vehicle enters the detection area, and the vehicle is tracked; and (c) in the detection area, jamming is determined by that (c1) if the vehicle appears inthe detection area in fewer than 300 frames, it is shown that the detection area is unobstructed; (c2) ) if the vehicle appears in the detection area in more than 300 frames and fewer than 500 frames,it is shown that passing in the detection area is slow; and (c3) if the appears in the detection area in more than 500 frame, it is shown that jamming occurs in the detection area. The method is simple, accurate and high in speed and efficiency.

The invention discloses a high-pressure jet grouting piling device and a construction method thereof. The piling device comprise a power head, a drilling rod and first and second grouting pipes, the drilling rod is rotationally installed in an installation cavity of the power head, a drill bit of the drilling rod is provided with a first grouting port, the first grouting pipe comprises a first fixed segmented positioned in the power head and a first rotary segment positioned in the drilling rod, and the first rotary segment is communicated with the first grouting port; upper and lower annularcavities are arranged between the installation cavity and the drilling rod; the first fixed segment is communicated with the first rotary segment via the upper annular cavity; and the second groutingpipe comprises a second fixed segment positioned in the power head and a second rotary segment positioned in the drilling rod, the second fixed segment is communicated with the second rotary segment via the lower annular cavity, and the second rotary segment is communicated with a second grouting port. When the drilling bit is positioned in a hard soil layer, the two grouting pipes inject slurry in double amount simultaneously. Via the piling device and the construction method thereof, it is ensured that the slurry is diffused uniformly by rotary grouting in the soft or hard soil layer.

The invention provides a graph pickup method based on space geometry, which comprises the following steps of: S1, acquiring any two input points, and forming a pickup frame by the two points; s2, judging the box selection direction of the pickup box, if the box selection direction is from the upper left corner to the lower right corner, executing a step S3, and if the box selection direction is from the lower right corner to the upper left corner, executing a step S4; s3, if the primitive is a straight line segment, picking up the straight line segment when the starting point and the ending point of the straight line segment are in a visual cone formed by a picking frame; and S4, if the primitive is a straight line segment, at least one of the six surfaces of the visual cone formed by the pick-up frame has an intersection point with the straight line segment, picking up the straight line segment. Different pick-up judgment methods are executed according to different directions of the pick-up frames; picking is carried out through the relation between the geometric features of the graph in the world coordinate system and the selection box, the judgment method is accurate and only aims at the graph, and redundant information cannot be picked up.