278results about How to "Timely judgment" patented technology

The invention discloses a method and system for detecting abnormal sounds. The method includes the steps that short-time energy of each frame of a collected audio signal is compared with a first short-time energy threshold value, if the short-time energy is larger than the first short-time energy threshold value, the corresponding frames are recorded to be first-grade frames, if the short-time energy is smaller than the first short-time energy threshold value, the short-time energy of each frame of the collected audio signal is compared with a second threshold value or the zero-crossing rate of each frame of the collected audio signal is compared with a zero-passing rate threshold value, the frames with the short-time energy larger than the second short-time energy threshold value or the zero-passing rates larger than the zero-passing rate threshold value are recorded to be second-grade frames, and when the number of the continuous frames which are the first-stage frames or the second-stage frames is larger than N and the current frame is the first-stage frame, it is judged that the sounds are abnormal. By means of the method, the abnormal sounds are judged by calculating the short-time energy and the zero-passing rates; as the short-time energy and the zero-passing rates belong to the time domain characteristics and are not related to frequency domain conversion and characteristic parameter calculating, the calculating complexity can be lowered. Meanwhile, as audio information collected in real time is processed, real-time processing and real-time analysis can be carried out, and abnormality can be judged in time.

The disclosure relates to a smart TV anomaly detection method and device. The method comprises: acquiring a currently displayed image displayed on a display screen of a smart TV; judging whether the currently displayed image is matched with a corresponding preset abnormal image or not; and determining whether the smart TV is in an abnormal state or not currently according to the matching result. According to the technical scheme, the currently displayed image displayed on the display screen of the smart TV can be automatically acquired, then whether the currently displayed image is matched with the corresponding preset abnormal image or not is judged to determine the matching result, and whether the smart TV is in an abnormal state or not currently is automatically determined according to the matching result, so that timely and accurate judgment of the abnormal state of the smart TV is realized, and accurate analysis of abnormal reasons, abnormal problem solution of the smart TV and the smart TV quality improvement are facilitated accordingly.

The embodiment of the invention discloses a method and system for acquiring passive optical network (PON) element information. The method comprises the following steps that: OLT (Optical Line Terminal) equipment automatically discovers and acquires unregistered ONU (Optical Network Unit) information of the downlink communication connection of PON ports of the OLT equipment, and records the unregistered ONU information; an unregistered ONU acquisition module acquires information of all the PON ports of the OLT equipment according to the IP (Internet Protocol) address of the OLT equipment, acquires the unregistered ONU information of the downlink connection of all the PON ports of the OLT equipment and the uplink port information of the PON ports from the OLT equipment, and stores the IP address of the OLT equipment, the acquired PON port information, the unregistered ONU information under the PON ports and the corresponding uplink port information of the PON ports in a database; and installation and maintenance personnel inquires the installed ONU information, PON port information and uplink port information from the database through a mobile terminal, and compares the obtained information with information of a construction worksheet to determine whether or not the ONU is installed correctly and whether or not the states of corresponding PON ports and uplink ports are normal. According to the embodiment of the invention, the information inquiry speed and the installation testing speed of each PON network element can be increased.

The invention discloses a system for intelligently monitoring state information of a transformer. The system comprises a universal measurement device, a gas-in-oil monitoring device, a transformer partial discharge monitoring device, a sleeve insulation monitoring device, an iron core grounding current monitoring device, an exchanger and a processor, wherein each monitoring device is respectively connected with the processor through marking interfaces of the exchanger to transmit monitored various signals of the transformer to the processor for analyzing and processing; the processor is used for carrying out fault diagnosis and risk evaluation on the operating condition of the transformer on the basis of a preset transformer fault diagnosis algorithm and gives an alarm when a fault is occurred; meanwhile, a standard communication protocol, namely, an IEC61850 protocol, is adopted between each monitoring device and the processor. The system and a method have comprehensive monitoring parameters, are easy for integration and have strong independence.

The invention relates to a method for realizing link discovery and management in an FTTX (Fiber to the X) access system. The method comprises the steps of: periodically sending link layer discovery protocol messages to an uplink device of an OLT (Optical Line Terminal) device through an uplink interface by the OLT device; performing a listening task by a core swap disk program of the OLT, wherein the link layer discovery protocol messages from an ONU (Optical Network Unit) and an ONU user-side access device are received in the listening task; respectively storing locally stored information of the device and information of a user-side network device into a local link layer discovery protocol management information base by the OLT device; requiring to send LLDPDU (Link Layer Discovery Protocol Data Unit) protocol messages to the uplink device by the OLT so as to report the existence of the OLT; and carrying out extension of the LLDPDU messages. The invention fills in the gap of application of the traditional link layer discovery protocol (LLDP) and provides the method for realizing link layer discovery in the FTTX access system with optical path grading, especially on a plug-in card type OLT device; and according to the method, provided by the invention, the basic architecture of the FTTX access system is not affected, and the operation is simple and easy to realize.

The invention provides a drift fault recognition method of hot-rolling strip steel based on sound signals. The method comprises the following steps of: preprocessing a signal by combining the features of a hot-rolling production line and adopting a resampling and framing technology, carrying out feature extraction on the signal by adopting a Mel frequency cepstrum technology and carrying out feature selection and recognition by adopting a principal component analysis method and a multivariate statistic process T2 control diagram so as to realize the diagnosis of drift faults of the hot-rolling strip steel. The invention has the advantages that the drift phenomenon can be judged accurately and rapidly on line by utilizing an acoustic detection method, the roller replacement time can be reasonably arranged, the roller consumption can be effectively reduced, the production cost can be controlled, and the quality defect prevention capacity and the production operability of the product can be improved.

The invention provides a method for detecting the state of health of a battery. The method comprises the steps that the internal pressure of the battery is detected; the SOH of the battery is obtained from a corresponding relation generated in advance according to the internal pressure of the battery; the corresponding relation is the corresponding relation between the SOH and the internal pressure of the battery. The invention further provides equipment for detecting the state of health of the battery. According to the technical scheme, the improvement of detection accuracy of the SOH of the battery is achieved.

The invention discloses a bridge dynamic weighing method based on the long-gauge fiber grating sensing technology and a bridge dynamic weighing system thereof. The dynamic weighing method comprises the steps that long-gauge sensors are arranged: the long-gauge sensors are arranged on the initial entering and final exiting side span units of a vehicle and the part between the two side span units along the length direction of the bridge; load condition monitoring of a vehicle to be identified and load condition monitoring of a standard vehicle are performed: the vehicle of which various parameters are known acts as the standard vehicle, the strain response data of each sensing unit under the load condition of the standard vehicle are acquired, and the maximum strain of each sensing unit only caused by the axle load is calculated; and vehicle load identification under the load condition of the vehicle to be identified is performed. The maximum bending strain value only caused by the axle load under the load condition of the standard vehicle is analyzed and compared with the corresponding value under the load condition of the standard value so that the total weight of the driving load on the bridge and the load of each vehicle can be identified, the overload vehicle can be effectively pre-warned and thus damage to the big long-span bridges can be avoided.

The invention discloses a diagnostic method and detecting system for GIS partial discharge. The diagnostic method comprises the following steps: a database containing standard grey-scale maps of various partial discharge types is established; the number of discharge times, discharge amplitude and discharge phase angles of the partial discharge within a set work cycle of a GIS to be detected are acquired; a grey-scale map to be identified of the partial discharge of the GIS to be detected is formed according to the number of discharge times, the discharge amplitude and the discharge phase angles; the grey-scale map to be identified is contrasted with the standard grey-scale maps in the database to judge the type of the partial discharge. The diagnostic method can be used for quickly detecting the type of the GIS partial discharge. The detecting system adopting the principle of the diagnostic method can realize automatic detection of the GIS partial discharge, and therefore the GIS partial discharge can be found out in time and the type of the GIS partial discharge can be judged.

The invention discloses an intersection blind area early warning method and system based on dynamic image perception. The method comprises: acquiring original traffic point cloud data collected by a dynamic vision sensor; preprocessing the original traffic point cloud data; performing clustering analysis on the noise filtering traffic point cloud data; classifying the vehicle and pedestrian targets; tracking a vehicle target, extracting the motion state of the vehicle target, and the motion state of the vehicle target comprising the real-time speed and the distance between the vehicle target and the intersection; judging the collision danger level of the vehicle according to the motion state of the vehicle target and a collision danger level setting threshold value; and publishing the motion state of the vehicle target and the collision danger level of the vehicle to a driver. According to the invention, the problems of parking interference on the roadside, poor light and low permeability of the intelligent vehicle-mounted terminal device in the prior art are solved, and the early warning real-time performance and accuracy of the traffic condition of the blind area of the intersection are improved.

The invention relates to the field of signal acquisition and discloses a muscle fatigue detection system and method to solve the technical problem that the prior art fails to judge whether muscles are in fatigue or not. The system comprises an acquisition circuit, an amplifying circuit, a filter circuit and a voltage comparison circuit; the acquisition circuit is used for acquiring electromyographic signals of muscles; the amplifying circuit is connected to the acquisition circuit; the filter circuit is connected to the acquisition circuit and used for receiving amplified electromyographic signals and filtering the amplified electromyographic signals to obtain a bandpass signal having frequency in a preset range; the voltage comparison circuit is connected to the filter circuit and used for judging whether a voltage value of the bandpass signal is greater than a preset threshold or not and generating a reminder message when the voltage value of the bandpass signal is greater than the preset threshold. The technical effect of judging whether muscles are in fatigue or not in time is achieved.

According to the invention, a method for detecting vehicle collision events is provided. The method comprises the following steps: a control center device receiving operating state data of a plurality of vehicles, the data being acquired by a plurality of devices in the vehicles and being uploaded; and the control center device using the received operating state data of the plurality of vehicles to determine whether a collision event occurs to the vehicles.

The invention discloses a device and a method for partial enlarged display of radar PPI images based on target details, which can perform real enlarged display of radar targets so as to separate out the target details in radar images. The device and the method have the following advantages: the radar target details of an important region are separated out through secondary sampling correlative with enlargement factor, the radar image data with polar coordinate formats is projected into a frame buffer corresponding to a screen rectangular coordinate system through scanning conversion processing, and finally the radar image data is output to an appointed enlarging window to perform display. Any radar partial original image is enlarged in a specific enlarging window and can display detail information of a target in the original image, the enlargement factor is adjustable as required, and if the enlargement factor is larger, the detail information of the enlarged image is more abundant. A device operator can obtain various attributes of the radar target as early and detailed as possible so as to make timely, scientific and accurate judgments and decisions.

The invention discloses a big data application platform based on the Internet and an intelligent traffic video monitoring management system. The system comprises an application layer, a basic serviceand an equipment layer, the application layer is composed of a motor vehicle anti-smuggling deploying and controlling system and an intelligent traffic management and control command platform, the basic service is composed of the fake-licensed vehicle detection, the interval speed measurement, the comparison alarm, a traffic management information base and a traffic management geographic information system, and the equipment layer is composed of the mobile speed measurement, a vehicle-mounted platform, an electronic police, the interval vehicle speed, the fixed speed measurement, the traffic time detection, the video monitoring and a bayonet system. According to the invention, the on-site images in a monitoring area are sent back to the command center through the system, the signal timingis adjusted in time, or traffic is dredged and the traffic flow distribution is changed through other means, so that the purpose of relieving traffic jam is achieved. The dynamic and static traffic safety information of various highway networks is collected and processed, and the traffic safety situations and accident hidden dangers are analyzed, researched and judged, so that the functions of interconnection and intercommunication of traffic violation information, source supervision and the like are achieved.

The invention discloses an evaluation method for an electric transmission line orientated forest fire approaching risk. The method includes the following steps that A, forest fire happening information is obtained from a forest fire monitoring system based on satellites; B, electric transmission lines affected by ignition points are determined according to the happening position of the ignition points and longitude and latitude coordinates of the electric transmission lines; C, real-time meteorological data are obtained from an automatic meteorological monitoring station; D, according to the forest fire happening information, the real-time meteorological data and the electric transmission lines affected by the ignition points, risk indexes of the forest fire on all the electric transmission lines affected by the ignition points are sequentially calculated; E, a forest fire early warning risk grade of the forest fire event is determined according to the forest fire approaching risk indexes, and forest fire approaching risk early warning information is issued according to a set issuing standard; F, whether risk evaluation calculation is completed or not is judged. The evaluation method can quickly evaluate the risks of the forest fire on nearby lines after the forest fire happens, and the early warning information can be issued according to an evaluation result.

The invention provides a method and device for producing an organic concentrated compound liquid fertilizer from marsh liquid at normal temperature, and aims to provide a method for producing an organic concentrated compound liquid fertilizer from marsh liquid, which has the advantages of low cost and high degree of automation. The method comprises steps as follows: marsh liquid is filtered by a marsh liquid filter pond to remove large-granule substances containing plant fibers and sand grains, enters a marsh liquid stock solution storage tank, is pumped to a marsh liquid mechanical filter, a marsh liquid multimedia filter and a marsh liquid precision filter to remove high-molecular substances containing algae, pesticide residues, and bacteria, and is filtered by a marsh liquid cross-flow ultrafilter; the unfiltered liquid enters a concentrated liquid storage tank, and the filtrate enters an aromatic polyamide membrane element concentration device to be concentrated and separated; the separated concentrated liquid enters the concentrated liquid storage tank, and is delivered to a marsh liquid preparation tank to prepare the liquid fertilizer; the filtrate enters a pure water storage tank for cleaning equipment; and the liquid fertilizer is sterilized by an on-line sterilizer, and then packaged to serve as a plant liquid fertilizer for crops, flowers and the like.

The invention relates to an intelligent control method for high beam lights and low beam lights of a vehicle on the basis of the internet of vehicles. The method comprises the steps that 1, the specific location of a key node is found on an in-vehicle map, and a target field is drawn by taking the key node as the center a circle and taking the running required distance as a radius; 2, when the vehicle makes contact with the boundary of the target field, corresponding control operations of the high beam lights and the low beam lights of the vehicle are performed; 3, when other vehicles appear in the target filed, corresponding control operations of the high beam lights and the low beam lights of the vehicle are performed; 4, the external light intensity, temperature and relative humidity orwireless signals of the vehicle are collected and compared with corresponding threshold values, and corresponding control operations of the high beam lights and the low beam lights of the vehicle areperformed. Accordingly, intelligent comprehensive control over the high beam lights and the low beam lights can be effectively and accurately achieved, the system load is small, operation is stable,and the safety is high.

The invention discloses a sensory quality evaluation method for threshing and re-drying finished tobacco strips. The method is characterized by setting three levels of sensory quality evaluation indices, sample evaluation conditions, illumination demands and sensory evaluation indices and demands, detecting the sensory indices of the threshing and re-drying finished tobacco strips through four steps of looking, smelling, blowing and patting, and comprehensively performing sensory quality evaluation on the quality of the threshing and re-drying finished tobacco strips by judging whether the finished tobacco strips are qualified and whether the quality and processing technology are excellent. The method disclosed by the invention fully utilizes the sense organs (including eyes, nose, mouth and hands) of a person to evaluate the quality of the strips by looking, smelling, blowing and patting, the evaluation result is uniform with that of YC/T138-1998 standard, and the sensory quality evaluation method fills up the blank of sensory evaluation of threshing and re-drying finished tobacco strips.

The invention relates to an automatic test system for transformer relay protection equipment. The system comprises a clamp, a relay protection instrument, a switch and a host computer, the clamp is provided with a connection port which is connected to the to-be-tested equipment, the to-be-tested equipment is connected with one end of the relay protection instrument through the connection port, theother end of the relay protection instrument is connected with one end of the switch, and the other end of the switch is connected with the host computer. The host computer sends a test instruction to the relay protection instrument through the switch; the relay protection instrument determines the output analog quantity of the tested equipment according to the test instruction; and the tested equipment acts based on the output analog quantity, and feeds back the generated test data k to the relay protection instrument through the connection port, the relay protection instrument generates a corresponding test result according to the test data and feeds the test result back to the host computer through the switch, and the host computer judges the test result and generates a corresponding test report. Automatic execution of different test items can be realized, the test result is judged, and the working efficiency of the test process is improved.

The invention relates to a well control project monitoring system comprising a drill floor adjusting device, a drilling tool is inserted into a borehole through the drill floor adjusting device, a sludge circulation system passes through an inner cavity of the drilling tool, circulates in the annular space of the borehole out of a circulation tank and then is pumped into the inner cavity of the drilling tool through a sludge pump to form a closed loop, an anti-spilling pipe is connected to the upper portion of the borehole, the upper end of the anti-spilling pipe is provided with a wellhead sealer, a blowout preventer is arranged at the lower portion of the anti-spilling pipe, a grout pipe and a grout pump sequentially pass through the position between the wellhead sealer and the blowout preventer and then are connected with a sludge tank, the grout pipe is provided with a grout pipe flow sensor, a guide pipe flow sensor is arranged at the position, at a guide pipe of an outlet of the anti-spilling pipe, of the sludge circulation system, and a vertical pipe flow sensor is arranged at an inlet of the sludge circulation system. The well control project monitoring system is stable in performance, can achieve recording and wireless remote transmission of on-the-spot working information in real time, and provides the basis for integration of the spot and a foundation, information sharing, remote control commanding, accident replaying and investigation treatment.

The invention provides a control method for monitoring entrance and exit of a parking lot. First and second motions are carried out when a vehicle drives into or out of the entrance/exit of the parking lot; in the first motion, entrance/exit sensing information, which is collected by a senor when the vehicle drives into or out of the entrance/exit of the parking lot and comprises vehicle entrance and exit information, vehicle position information, vehicle marker information and control induction information, is sent to a vehicle control center; and in the second motion, the vehicle control center calculates logic relation of the entrance/exit sensing information, provides vehicle behavior information, and carries out operation and processing according to the vehicle behavior information. The entrance/exist sensing information is collected, the vehicle control center analyses vehicle behaviors on the basis of the entrance/exist sensing information, whether the vehicle behavior is abnormal is determined according to an analysis result, and handling can be made immediately if the vehicle behavior is abnormal. The system and method can be used to realize monitoring and automatic control over vehicles into or out of the entrance/exit, improve the working efficiency and improve the working safety.

The invention discloses an intelligent campus security management system based on the Internet, which comprises a fire detection unit, an environment detection unit, a data acquisition module, a controller, an alarm module, a danger situation processing unit, a danger level unit and a display module. The system can detect the number of personnel and the list of personnel inside the building wherethe dangerous situation occurs, estimate the possible damage caused by the dangerous situation, detect the weather condition around the building when the dangerous situation occurs, predict the possible spreading direction, spreading trend and speed of the dangerous situation according to the wind speed, wind direction, air dryness, rain and snow, etc., so as to facilitate the staff to make timelyand accurate treatment according to the actual situation, and avoid the further expansion of the dangerous situation. The system is able to work out the solution according to the danger level in time, and provide the workers with the tools list in time according to the solution, prompting the workers to use the tool placement.

The invention discloses an evaluation method of multimedia message service user perception and experience QoE for simulating user behavior. The method comprises the steps of firstly setting a multimedia message service QoE evaluation index system including sending and receiving two types of user perception and experience parameters, in terms of service access, service maintenance and service completion, through multimedia message, then adopting a test terminal to simulate the process of sending and receiving multimedia message by the user, respectively gathering and computing key performance indexes KPI of the two types of user perception and experience of the multimedia message service, further computing corresponding key quality indexes KQI of the multimedia message service, adopting a mental model to perform comprehensive operation to KQI, so as to obtain key experience indexes KEI of the corresponding multimedia message service, and then performing comprehensive analysis to the KEI indexes, so as to obtain 5-point system multimedia message service QoE values equivalent to international standard mean opinion score MOS. The method has the advantages that the evaluation parameter standard is objective and practical, the operation steps are simple, the computation complexity is low, and the method is easy to realize, and can simulate the user behavior to obtain objective and fair user perception and experience quality.

The invention discloses a dyeing quality detection method and device, a storage medium and a processor. The method comprises the following steps: acquiring color parameters of dye liquor; obtaining aconcentration parameter corresponding to the color parameter based on the constructed concentration prediction model; comparing an actual curve generated according to the concentration parameter witha standard curve under a target condition to obtain a comparison result; and determining the dyeing quality according to the comparison result. The technical problem of judging the dyeing quality after the dyeing process is finished by virtue of artificial experience in related technologies is solved.