61 results about "Time to detection" patented technology

An acoustic detection of a discrete acoustic signal allows to detect a leak behind a casing (23) of a borehole. An acoustic amplitude (AA) is sampled during a recording time period (24; 64) at a determined position along the tube. Time intervals (26; 66) are defined inside of the recording time period (24), and for each time interval (26) the measured acoustic amplitudes are processed to obtain respectively a corresponding power-frequency spectrum (261). A plurality of the power-frequency spectra are analyzed to identify the discrete acoustic signal by detecting time and frequency dependant changes of power. Preferably the processing involves a Fourier transform analysis. A power-frequency time plot is used to conveniently identify the discrete acoustic event.

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.

Erroneous detection of a failure in spite of the absence of failure on the route on account of a communication delay is to be prevented. A node device detects a failure on the route to a remote node device is detected by a failure to receive a packet from the remote node device after the elapse of a determined detection time. The node device sets “remote system transmission interval x detection multiplier” to be a first detecting time on the basis of a packet transmission interval determined by negotiation with the remote node device. It also sets the sum of “remote system actual transmission interval x detection multiplier” and “tolerable delay time” to be a second detecting time. The first detecting time and the second detecting time are compared, and what is longer is determined as the detecting time to be applied to actual operation.

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.

The invention discloses a method and device for detecting data access exception. The method comprises the following steps: obtaining historical access data of a time point under detection, which comprises data volume of access parameter and a time point corresponding to the data volume; determining a first time period of the time point under detection according to predetermined time periods, and extracting first access data within the first time period from the historical access data; determining a first predicted data volume corresponding to the time point under detection according to the data volume within the first time period and the time point corresponding to the data volume within the first time period; determining exception of practical data volume if the practical data volume corresponding to the time point under detection is greater than the first predicted data volume. The method solves the technical problem that the existing method for detecting data access exception is easy to produce a deviation or misjudgment to cause low accuracy.

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.

A monitoring system which can monitor a plurality of vehicles (1) includes vibration sensing units (15) each sensing a vibration of the associated vehicle (1), a sensed time specifying unit (20b) which specifies an instant at which the vibration of the vehicle (1) is sensed by the vibration sensing unit, and an abnormality determining unit (20a) which determines, when a vibration of one of the vehicles (1) is sensed by the associated vibration sensing unit (15), whether the vibration is caused by preparations for theft with respect to the vehicle (1) or the vibration is caused by environmental influences on the vehicle (1). The abnormality determining unit (20a) carries out the determination on ground of sensing results obtained by the vibration sensing units (15) of the respective vehicles (1) and a result of specification carried out by the sensed time specifying unit (20b). With this, a possibility of incorrectly identifying a vibration not being attributed to preparations for theft as a vibration attributed to preparations for theft.

The invention discloses an antibody against fluoroquinolones and application thereof. The single-chain antibody consists of a heavy chain variable region, a short peptide for connecting the heavy chain variable region and a light chain variable region, and the light chain variable region connected in turn; the amino acid sequence of the heavy chain variable region is shown as the first position to the 118th position amino acid residues from the N terminal in a sequence 1; and the amino acid sequence of the light chain variable region is shown as the 134th position to 248th position amino acid residues from the N terminal in the sequence 1. A kit and a colloid gold test paper card have the advantages of high sensitivity, high accuracy, high precision, low cost, simple operation, short detection time, suitability for various units, simple storage and long quality guarantee period, can quickly detect massive samples simultaneously and can realize on-site high-flux quick detection. Therefore, the antibody, the kit, the colloid gold test paper and the detection method have important effect of detecting fluoroquinolones.

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.

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.

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.

A method and apparatus for delivering therapeutic radiation (112) to a radiotherapy target (119) in a patient (114) includes a diagnostic X-ray source (124, 125) connected to a treatment couch (116), facing a first side of the patient. An imaging device (118) is connected to the treatment couch facing a second side of the patient. The diagnostic X-ray source and the imaging device move in lockstep with movement of the treatment couch. The patient is in a fixed position relative to the treatment couch.

The invention provides an overflowing detection method and device, electronic equipment and an intelligent home appliance. The method is applied to a master controller of the intelligent home appliance. The method comprises the steps that a first image of a kitchen preset zone is obtained, wherein, the kitchen preset zone comprises a target home appliance having an overflowing state, and the firstimage is the image of the target home appliance in the overflowing state; after an overflowing detection command is detected, a current image of the kitchen preset zone is obtained to serve as a second image every preset detection time interval; whether the second image is matched with the first image or not is judged; and if not, overflowing alarming operation is conducted. According to the technical scheme, whether the overflowing situation occurs or not can be automatically judged by the master controller of the intelligent home appliance so that a user can be reminded in time when the overflowing situation occurs, and potential safety hazards are avoided.

The invention discloses clock signal detection method and system, belonging to the technical field of signal detection. The method comprises the following steps of: inputting a clock signal to a band-pass filter, wherein the bandwidth of the band-pass filter corresponds to the detection accuracy required by the clock signal; reshaping the output of the band-pass filter; and detecting whether a signal is output after reshaping, and if no signal is detected to be output, determining the clock signal to be faulty. By using the clock signal detection method and system, the coupling relationship between the clock signal detection accuracy and consumed resources as well as detection time can be eliminated, the detection of the clock signal can be simply and conveniently realized, the detection time is shortened, and the requirements for different detection accuracies are satisfied.

The invention relates to a test strip, a kit and a method for detecting AMH (anti-mullerian hormone) with TRFIA (time-resolved fluorescence immunoassay). The test strip comprises a PVC bottom plate, awhole blood filter pad, an antibody carrying membrane and absorbent paper. The kit comprises the test strip for detecting the AMH with the TRFIA, a sample buffer solution and an ID card containing anAMH standard curve. The kit can meet the requirement of single-person and small-batch detection of AMH and has the advantages of high sensitivity, high specificity, small blood amount, short detection time, operation convenience and detection result accuracy and reliability.

The invention provides a micro-fluidic chip and detection system for detecting formaldehyde and the pH value of a textile. The micro-fluidic chip is connected with a micro pump and comprises a cover plate layer and a channel layer. The cover plate layer is matched with the channel layer. The channel layer comprises a chip base body and a sample cell. The sample cell is connected with a formaldehyde detection cell and a pH value detection cell through a micro fluid channel. The formaldehyde detection cell and the pH value detection cell are connected with a pump valve interface. The pump valve interface communicates with the micro pump. By means of the micro-fluidic chip, the formaldehyde and the pH value of the textile can be detected at the same time by one-time sample feeding, and in addition, due to the fact that detection reagent is fixed into the detection cells on the chip in advance, the detection reagent does not need to be provided in the operation process; the operation procedure is simplified; detection time is shortened; professional personnel are not needed; and the micro-fluidic chip and matched portable equipment are used together, and on-site quick detection can be achieved.

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.

The present invention is directed to a process for the detection of a fixed position a predetermined distance from a vehicle (10), an activation function (20) of the vehicle (10). the process makes it possible to compare the values of amplitude according to at least one component of an electromagnetic field induced by an antenna (14) of the vehicle (10) and measured by means of activation (20) during a time interval of detection in order to determine whether the activation means (20) is kept in a position fixed for the duration of the time interval of detection.

A simple analysis method for the cerebral circulation hemo-dynamics includes such steps as dividing brain into front left, front right and back parts according to the cerebral Wills ring, creating the network model of equivalent circuit of hemo-dynamic units and relative control equation, finding out their blood flow, filled blood amount and pre-compensation and calculating their hemo-dynamic parameters such as critical pressure, dynamic resistance, etc. Its instrument is also disclosed.

The present invention is a time detection circuit having: a delay unit (30) that starts operation at a first timing relating to the input of a first pulse and that has a plurality of delay units (DU) that delay and output an input signal (Start P); a latch unit (33) that latches the logical state of the plurality of delay units (DU); a count unit (34) that counts on the basis of a clock (CK7) output from any one (DU[7]) of the plurality of delay units; and a latch control unit (32) that enables the latch unit (33) at a second timing relating to the input of a second pulse, and causes the latch unit to execute a latch at a third timing that lags from the second timing by a predetermined time. The latch circuits (D_0 to D_6) that configure the latch unit (33) maintain a disabled state (holding state) until the input of the second pulse (the interval of detected time), and so it is possible to reduce the electric current consumed by the latch unit (33).

Disclosed is a microflow device based on SERS (surface enhanced Raman scattering) technology to detect specific antigens in serum. The microflow device is of a sandwich structure and is mainly composed of three microflow liquid inlets, one microflow liquid outlet, an SERS detection unit and a sensing controller. Under control of a control sensor, microflow liquid at each microflow passage inlet is in antigen antibody reaction in a passage, the SERS detection unit enables an immune complex in generated microflow liquid to be separated and gathered in a microflow passage nearest to the SERS detection unit, a Raman test is performed on an immune complex aggregate, and concentration of a to-be-detected antigen in serum can be acquired by processing and analyzing acquired SERS signal strength data to judge whether a disease exists or not. The microflow device has the advantages of low time consumption, small sample loss, short detection time and reusability.

The present invention is a computer system for performing processing synchronously with an internal system clock. The system includes a time information inputting part for detecting a signal for time notice sent from an external reference clock and acquiring an internal time at the present time from the system clock. The system further includes a time correction controlling part for comparing the time information together with the signal for time notice and the internal time at the time of detecting the signal for time notice and correcting the time of the system clock based on the comparison result. Further, the time correction controlling part calculates a signal interval that is a time difference in said system clock between two consecutive signals for time notice based on the internal time acquired from the time information inputting part, evaluating the calculated signal interval and judging whether or not it is required to correct the internal time.

A rapid method for detecting spoilage of a food sample, particularly a fish sample, by detecting and enumerating sulfide-producing bacteria (SPB). A growth medium containing iron and sulfur is combined with the food sample forming an incubation mixture which is incubated for a period of time. In one embodiment, a plurality of fluorescence measurements are taken during an incubation period of about 3 hours to 17 hours at 30° C. SPB are determined to be present in the sample if the fluorescence measurement initially increases and then decreases to form a fluorescence maximum (peak). The time to detection of the fluorescence peak can be used with a correlation schedule to enumerate the SPB in the food sample. In another embodiment, a visual test can also be used to identify color changes in the incubation mixture to provide a semi-quantitative enumeration of SPB effective after about 3 hours to 17 hours of incubation.

Described herein are methods and apparatus for rapid detection of microorganisms in biological samples (e.g. blood) for analysis to determine the presence or absence of infectious microorganisms in the samples. The apparatus includes a cartridge with a lid and a tray, a mechanism for isolating a bulk sample into multiple smaller samples, and a sensor disposed on the tray to determine the presence or absence of microorganisms. The cartridge lid includes projections that, in a first position, allow for sample to distribute evenly in the cartridge tray and, in a second position, isolate the sample into multiple smaller volume samples. The apparatus and method shorten the time-to-detection of a microorganism in a sample and reduce the steps required from sample collection to microorganism detection.

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.

The invention relates to the field of gas detection, and discloses a gas detecting and ventilating device and a using method thereof. The gas detecting and ventilating device comprises a casing, a detecting component and a ventilating component, wherein the detecting component is disposed in the casing and comprises a sensor array, a signal converting part and a signal processing part, and the signal converting part is respectively connected to the sensor array and the signal processing part; the ventilating component is disposed on the casing for exchanging gas in the casing and is communicatively coupled to a control part. The gas detecting and ventilating device provided by the invention can ensure that the gas to be detected and the detecting component are simultaneously sealed in thecasing by providing the detecting component in the casing, thereby improving the contact efficiency between the gas to be detected and the detecting component in the space of the limited closed space,shortening the detection time and ensuring the detection efficiency. In addition, the passive detection in the prior art is changed to active sampling detection, which improves the active response capability of the gas detecting and ventilating device.

The invention discloses a Taqman Real-time RT-PCR (reverse transcription-polymerase chain reaction) kit for detecting a PRRSV (porcine reproductive and respiratory syndrome virus). The kit comprises an One Step RT-PCR buffer III, Ex Taq HS, a PrimerScript RT Enzyme Mix II, a negative control, a positive control and a mixture of amplification primers SEQ ID NO:1 to SEQ ID NO:2 and a probe primer SEQ ID NO:3. According to the kit, reverse transcription and PCR amplification processes are finished in a one-step reaction, so that the detection time is shortened, a reaction detection result can be directly seen without electrophoresis, and a quick detection is facilitated; and meanwhile, the pollution of reaction products can be effectively prevented through a closed tube operation. A probe method is used in the kit, so that an effective effect can be generated only when a probe is specifically combined on an amplification target sequence, the accuracy is high, and the prevention and control of the PRRSV and the removal of recessive poisoned animals are promoted.

A bacterial pre-concentration and detection system generally includes a collection tube (110), a sensor (120) at the bottom of the collection tube, a moveable stopper (130) initially located toward the top of the tube, a piston (300) operatively connected to a robot for moving the stopper up or down the inside of the collection tube, and a hollow needle (400) penetrating the stopper and creating fluid communication with the inside of the collection tube. The system allows for the sample to be collected, lysed, centrifuged, concentrated, and interrogated with regard to the presence or absence of microorganisms with minimal steps and with a reduction in the time-to-detection, compared with conventional growth-based bacterial detection systems.

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.