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60 results about "Time to detection" patented technology

Mean time to detect or discover (MTTD) is a measure of how long a problem exists in an IT deployment before the appropriate parties become aware of it.

Method for detecting and sorting self-discharge performance of lithium iron phosphate battery

The invention relates to a method for detecting and sorting self-discharge performance of a lithium iron phosphate battery. The method comprises the following steps of: charging to less than 70 percent of a SOC ( State Of Charge); 2, storing for a period of time, wherein the period of time is called as a stabilization time; 3, testing an open-circuit voltage of the battery, wherein the tested voltage in the step is called as V1; 4, storing for one period of time, wherein the period of time is called as a self-discharge time; 5, testing an open-circuit voltage of the battery, wherein the tested voltage in the step is called as V2; 6, calculating a voltage drop amount of the battery, the voltage drop amount is called as a delta V, wherein the delta V is equal to the V1 minus the V2; and 7, determining that a battery of which the delta V is greater than a standard value is an unqualified product, and determining that a battery of which the delta V is smaller than the standard value is a good product. According to the method provided by the invention, the self-discharge performance of the lithium iron phosphate battery can be sorted in a short time without needing a high temperature aging, the problem of high detection cost caused by shortening the detection time by using the traditional method needing using the high temperature aging to accelerate the electricity discharge speed is solved.
Owner:WANXIANG 123 CO LTD

Method for controlling irrigation according to crop water shortage degree and device thereof

The invention relates to a method for controlling irrigation according to crop water shortage degree and a device thereof. The method comprises the following steps of: determining a detection time window according to an illumination threshold and an illumination integral threshold; after entering the detection time window, simultaneously emitting ultrasonic waves to ultrasonic reflecting boards which are arranged in right front at equal intervals respectively from the positions approximately above the reference crop and the detection crop and parallel to the planes of the respective crops below at preset time intervals; when receiving the respective reflected ultrasonic waves, respectively starting and stopping the same counter; comparing the counting value with the counting threshold set according to the crop water shortage index in the ultrasonic transition time; and if the counting value is smaller than the counting threshold, the crop water shortage degree requires irrigation, then starting irrigation. The invention has the advantages of fewer detection parameters, no complicated calculation, no detection individual difference, non-contact measurement, and high economy and practicality.
Owner:FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI

Detection method for rapidly positioning local discharge of GIS (geographic information system) by using ultrasonic testing technology

The invention relates to a detection method for rapidly positioning local discharge of a GIS (geographic information system) by using an ultrasonic testing technology. The detection method comprises the following steps: (1) respectively providing an ultrasonic probe in each air chamber in an interval of a power GIS; (2) carrying out synchronous data collection on each ultrasonic probe; (3) analyzing and comparing the data collected by each ultrasonic probe; (4) gradually detecting each air chamber in other intervals of the power GIS according to the order from the step (1) to the step (3). By adopting the detection method, local discharge of the GIS is subjected to ultrasonic local discharge detection by a multi-channel GIS using a zigBee wireless sensor network transmission technology and a GPS (global position system) synchronous collecting technology; the ultrasonic probes are respectively arranged inside each independent air chamber; a collecting command is transmitted by a host computer of a control display part; each probe synchronously collects the data through the GPS, so that the test efficiency of ultrasonic detection on local discharge inside the GIS is improved; the functions of rapidly detecting and positioning local discharge inside the GIS are achieved; the detection time is shortened; the problem that a plurality of interval equipments are detected within limited time in a commissioning test of the GIS is overcome.
Owner:STATE GRID CORP OF CHINA +1

Signal detection method and device

The invention discloses a signal detection method and device, and belongs to the field of signal processing. The method includes the steps that the time when a characteristic signal arrives at a detection point is obtained from a receiving signal of the detection point; a detection time window of a signal to be detected is determined according to the time when the characteristic signal arrives at the detection point, information of an emission source for emitting the characteristic signal and information of an emission source for emitting the signal to be detected; the time when the signal to be detected arrives at the detection point is detected according to signal characteristics of the signal to be detected in the range corresponding to the detection time window of the signal to be detected in the receiving signal. The detection time window of the signal to be detected is determined according to the time when the characteristic signal arrives at the detection point, the information of the emission source for emitting the characteristic signal and the information of the emission source for emitting the signal to be detected, and the time when the signal to be detected arrives at the detection point is detected in the range corresponding to the detection time window of the signal to be detected in the receiving signal, therefore, the detection time is shortened, and the detection efficiency is improved.
Owner:NEC (CHINA) CO LTD

Attack detection method and system based on threat intelligence and electronic equipment

The invention provides an attack detection method and system based on threat intelligence and electronic equipment. The method includes the steps of obtaining a threat intelligence library; processingmultiple pieces of threat intelligence information in the threat intelligence library to obtain multiple association diagrams; in the association diagrams, determining a target association diagram corresponding to a target local image data engine, and sending the target association diagram to the target local image data engine to enable the target local image data engine to detect new attack threats according to the target association diagram. According to the method, the threat intelligence information in the image data engine of a cloud terminal is updated in real time, the correspondinglyobtained association diagrams are more comprehensive, the corresponding target association diagram can be sent to the target local image data engine to achieve the effects that when the target local image data engine detects the new attack threats according to the target association diagram, the detection efficiency and the accuracy are high. The technical problems can be solved that when existingdetection methods are used for detecting new threat attacks, the detection time is long, and the detection accuracy is poor.
Owner:HANGZHOU ANHENG INFORMATION TECH CO LTD

Vehicle accident detection alarm method based on Internet-of-vehicles intelligent terminal

The invention relates to the technical field of Internet of Vehicles, and provides a vehicle accident detection alarm method based on an Internet-of-vehicles intelligent terminal, which comprises thefollowing steps: initializing the Internet-of-vehicles intelligent terminal, and obtaining an initial configuration rule of the Internet-of-vehicles intelligent terminal from a server; collecting vehicle data in real time, preliminarily judging whether the current vehicle is in an abnormal condition according to the initial configuration rule, and if yes, uploading in-vehicle sound or image information to a server; if not, repeating the step; performing secondary judgment on the received in-vehicle sound or image information to judge whether a vehicle accident occurs by the server, and if yes,generating an alarm according to a preset mode; and if not, stopping the current round of judgment, and skipping to execute the previous step. According to the method, the vehicle accident detectiontime can be effectively shortened, the information uploading frequency is reduced, the accuracy of vehicle accident detection and judgment is improved, and resource waste caused by misjudgment is avoided.
Owner:GUANGZHOU YAMEI INFORMATION SCI & TECH CO LTD +1

Preparation method of molecularly imprinted ratio fluorescence probe and method for detecting oxytetracycline by means of same

The invention relates to a preparation method of a molecularly imprinted ratio fluorescence probe and a method for detecting oxytetracycline by means of the same. The invention aims to solve the problem that a synthetic method of a ratio fluorescence material is high in cost, is easily interfered by the environment in the oxytetracycline detection process and is long in detection time. The preparation method comprises the following steps: 1, preparing carbon quantum dots; 2, preparing a mesoporous molecularly imprinted polymer; and 3, preparing the molecularly imprinted ratio fluorescence probe. The method for detecting oxytetracycline comprises the following steps: 1, preparing a dispersion liquid; 2, determining a quenching constant Ksv; and 3, detecting a to-be-detected sample, and calculating concentration Qu of oxytetracycline in the to-be-detected sample according to a Stern-Volmer equation. The preparation method has the advantages that the preparation method is short in detection time, has a good recovery rate and reproductivity and has relatively high selectivity to oxytetracycline drugs. The preparation method provided by the invention is primarily used for preparing themolecularly imprinted ratio fluorescence probe and detecting oxytetracycline.
Owner:NORTHEAST FORESTRY UNIVERSITY

Traffic intersection vehicle flow single detector detection method based on decision theory

The invention relates to a traffic intersection vehicle flow single detector detection method based on decision theory. The method comprises the following steps of: a first step, scanning and recording whether a vehicle exists above the detector in real time; a second step, when starting detection, zeroing the vehicle flow N; a third step, calculating the passing time delta t of the vehicles on each lane; a fourth step, converting the delta t into the vehicle flow increment delta N of each lane; a fifth step, accumulating each delta N and adding the accumulated delta N into the vehicle flow N; a sixth step, judging whether to continue to execute detection, if so, returning back to the third step, otherwise, ending the detection, and taking the vehicle flow N accumulated right now as the traffic intersection vehicle flow within a predetermined detection time range. The method provided by the invention is simple and easy to carry out, high in accuracy and higher in cost performance; the data volume is smaller; the method can directly obtain the vehicle flow indicated by a standard vehicle equivalent; and the method can use the single detectors, such as a single coil detector or a single magnetism sensitive detector and on the like, and is suitable for a wide range.
Owner:NANJING LOPU CO LTD

Device testing and inspecting automatic recognition and pre-warning analysis system for coal mine

InactiveCN110056395AAvoid runnabilityAvoid frequent heavy load startsMining devicesMeasurement devicesEngineeringHeavy load
The invention discloses a device testing and inspecting automatic recognition and pre-warning analysis system for a coal mine. The device testing and inspecting automatic recognition and pre-warning analysis system comprises a collecting end, a communicating end and a monitoring end, and information transferring of the collecting end and the monitoring end is conducted through the communicating end; and the collecting end comprises a collecting module, and an output end of the collecting module is connected with an input end of a signal conversion module. The device testing and inspecting automatic recognition and pre-warning analysis system for the coal mine has the beneficial effects that a coal mine device is monitored online in real time, the problems of overburning, accidents and thelike due to fatigue operation of the device or frequent heavy load starting are avoided, the problems that detecting time of inspection personnel is short, data amount is less, the detecting method issingle, continuous detecting can not be conducted are solved, the initial purposes of safety, efficiency, convenient operation and timely pre-warning are achieved, the operation state of the coal mine device is monitored, fault diagnosis is conducted, thus the accidents are avoided, and the production efficiency of the coal mine is improved.
Owner:合肥帧讯软件有限公司
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