698 results about "Collection Time" patented technology

This invention uses a real-time holographic medium to record the amplitude and phase information collected from a moving platform at the aperture plane of a side-looking optical sensor over the collection time. A back-scan mirror is used to compensate platform motion during the synthetic aperture integration time. Phase errors caused by a nonlinear platform motion are compensated by controlling the phase offset between the illumination beam and the reference beam used to write the hologram based on inertial measurements of the flight path and the sensor line-of-sight pointing angles. In the illustrative embodiment, a synthetic aperture ladar (SAL) imaging system is mounted on a mobile platform. The system is adapted to receive a beam of electromagnetic energy; record the intensity and phase pattern carried by the beam; and store the pattern to compensate for motion of the platform relative to an external reference. In the illustrative embodiment, the image is stored as a holographic image. The system includes a back-scan mirror, which compensates the stored holographic pattern for motion of the platform. The medium and back-scan mirror may be replaced with a digital camera and one-dimensional and two-dimensional arrays may be used. In a specific embodiment, a two-dimensional array is used with a time delay and integration (TDI) scheme, which compensates for motion of the platform in the storage of the optical signals. In an alternative embodiment, a back-scanning mirror is used to compensate for motion of the platform. Consequently, the interference pattern between a relayed image of the aperture plane and a reference beam is continuously stored. In this embodiment, the instantaneous location of the received beam on the recording medium is controlled to compensate for motion of the platform.

A method of tracking a moving object in an image created by use of a synthetic aperture includes identifying a plurality of receive phase centers for an image collector, obtaining a synthetic aperture image using the plurality of receive phase centers, and reading a signature of the moving object based on the synthetic aperture image, where the reading of the signature includes identifying, in the synthetic aperture image, as a function of image collection time, a presence of the moving object. The reading of the signature may also include identifying a changing position of the moving object, and may include associating a plurality of range difference values with respective ones of the plurality of phase centers. A signature of a scatterer may be formed using only its associated ΔR-versus-time profile. The presence of a mover in the image may be determined by filtering the image to detect all or part of a signature, or by using one or more signatures to train a neural network to observe the mover directly.

Methods and a system are provided for detecting a Quality of Service degradation in a network flow. A method includes configuring, by a monitoring element, at least two network elements on a path of a network flow to report statistical information pertaining to the network flow as time series data. The method further includes collecting, by the monitoring element, the time series data from the network elements. The method also includes computing, by the monitoring element, a similarity of the time series data. The method additionally includes indicating, by the monitoring element, the Quality of Service degradation when the similarity is below a specified similarity threshold.

The invention discloses a real-time closed loop predictive tracking method of a maneuvering target, which is a closed loop real-time self-adaptive processing method of on-line predictive immediate tracking in a maneuvering small target imaging tracking system and is mainly used for fields of photoelectric imaging tracking, robot vision, intelligent traffic control and the like. Due to the adoption of the method, a captured target can be extracted to to establish a flight track, the target flight track is filtered, the position of a target at a next collection time is predicted, a platform is processed in real time on line with high performance of a DSP main processor and a FPGA coprocessor, a prediction algorithm which can cope with target maneuver with higher accuracy is adopted to predict the motion state of the target in real time and a prediction result is utilized to drive a piezoelectric ceramic motor two-dimensional motion station to carry out overcompensation, thereby the self-adaptive predictive tracking is realized. The invention has the advantages that the method can overcome the defect of a largened tracking error caused by system delay and can still carry out continuous and stable tracking when the target maneuvers or is temporarily sheltered.

A method and apparatus for reverse engineering an integrated circuit chip (IC chip) (120) utilizes an electrical circuit tester (114) for injecting a triggering signal into the IC chip (120) to exercise a circuit under test. In synchronization thereto, a PICA detector (116) monitors optical emissions from the circuit under test. A spatial data extractor, electrically coupled to the PICA detector, collects space information (124) from patterns of light emissions emitted by the circuit under test, and a timing data extractor, electrically coupled to the electrical circuit tester and to the PICA detector (116), collects time information (126) from the patterns of light emissions emitted by the circuit under test. A database memory (105) includes known data about the circuit under test and also includes at least one reference pattern for comparing a captured light emission pattern thereto to identify at least one circuit element in the circuit under test. A PICA data analyzer (108), electrically coupled to the database memory (105) and to the PICA detector (116), determines at least one of whether the circuit under test comprises a circuit element with a light emission pattern that matches one of the at least one reference pattern in the database memory (105), and the value contained in a memory in the IC chip (120).

A preferred method for transmission electron microscopy includes a step of generating a microscopy signal. The microscopy signal is then detected with an active pixel detector that includes a plurality of pixels. Each of the pixels includes at least one photodiode. Each pixel integrates an incident signal over a collection time period. Using a massibel parallel on chip analog to digital conversion, very fast read out times can be achieved, e.g., many frames per second. In a preferred embodiment, the read out time permits there to be a single electron event recorded per pixel, indicating either a single electron or the lack thereof. This permits simple accumulation of the pixel counts for each pixel in read-out and storage electronics.

The invention belongs to the technical field of three-dimensional imaging, and provides a three-dimensional imaging method and system for a human body and a simultaneous calibration method for multiple control base stations. Under the condition that spatial overlap does not exist in effective view fields of all distributed sensors, the structural parameters and the global matching parameters of all the sensors are calibrated. By using the corresponding point searching method with phase shift combined with random structured light, the image collection time for obtaining single-viewpoint depth data is shortened. By using the thought of time multiplexing, the whole data collection time of the system is compressed, due to the design of distributed computing, the computing power of the whole system is enhanced, and the speed for data acquisition is increased. According to the calibrated global matching parameters of all the different sensors, the depth data of the different sensors are matched automatically. The system can be debugged and expanded conveniently, the automation degree is high, and the three-dimension scanning process is easy to implement.

The present invention relates to an NAND Flash memory garbage collection method. The NAND Flash memory garbage collection method comprises the following steps of (1) if write-in data are the first page of data of the write request, obtaining to-be-write-in data bulk size Pwr of the current write request, and if not, going to a step (4) for execution; (2) pre-searching the flash memory, and determining the minimum average collection times [mu]=Bgc / Pwr of the write-in data; (3) selecting a collection strategy according to garbage collection overhead determined by pre-searching; and (4) setting size of idle space to be Perased and size of residual space except flash memory space occupied by valid data to be Pfree, if Perased / Pfree>1 / 4, ending collection; and if not, determining a collection target block Bvictim according to the collection strategy selected in the step (3), migrating valid pages of data in the Bvictim to other clean pages, and erasing the Bvictim to complete the collection. According to the NAND Flash memory garbage collection method, collection efficiency can be improved, write operation overhead of a memory management system can be reduced, and system I / O performance can be improved.

Disclosed are a three-dimensional reconstruction method and device, and a mobile terminal. The three-dimensional reconstruction method comprises: projecting linear laser to an object; continuously collecting image information about the object irradiated by the linear laser from at least two angles, and continuously collecting motion information about a camera; according to the image information, obtaining the three-dimensional coordinates of the object under a camera coordinate system corresponding to each collection time at each collection time; and according to the motion information, obtaining a position relationship of the camera coordinate system relative to a global three-dimensional coordinate system at each collection time, and conducting three-dimensional reconstruction of the object according to the three-dimensional coordinates and the position relationship. By means of the three-dimensional reconstruction method and device, and the mobile terminal in the embodiments of the present invention, image information about an object can be continuously collected from different angles and motion information about a camera can be continuously collected, and quick and omnidirectional three-dimensional scanning and reconstruction can be conducted on the object according to the collected information.

The invention discloses a tobacco leaf grading method based on a hyperspectral image and a deep learning algorithm. The tobacco leaf grading method comprises steps of 1, obtaining hyperspectral image data of a tobacco leaf sample to be measured, 2, performing high level characteristic extraction on the image data to perform dimension reduction, and 3, performing classification on obtained image information and spectral information. A hardware platform of a hyperspectral imaging system comprises a light source, a light splitting module, an area array CCD detector and a computer provided with an image collection card; spectral information can be obtained while the imaging system is utilized to perform image information collection, separate collection is not needed and collection time is shortened; in the step 2, a convolutional neural network is utilized to perform pre-processing and then a deep belief network is utilized to perform characteristic extraction; in the step 3, a Sofmax layer is added on the top layer and obtained characteristics are inputted into a softmax regression classifier to realize classification. The tobacco leaf grading method based on the hyperspectral image and deep learning can maximally achieve lossless grading, accurately divides a tobacco leaf grade, and ensures benefits of a purchasing party.

The present invention discloses a microfluidic system and a driving method thereof. A plurality of photosensitive detection units comprising phototransistors and first gating transistors are employed to perform liquid drop position and size detection. The driving method comprises: In a collection time quantum, loading cut-off signals to a first scanning signal line to allow each phototransistor to be a closure state, loading conduction signals to a second scanning line to allow the first gating transistors to be conducted, and determining a liquid drop position through detection of signal difference according to a feature that there is difference in a received light intensity received by the phototransistors according to determination of whether there is liquid drop coverage or not, so that detection is performed based on photosensitivity to avoid signal interference and facilitate improvement of detection precision; and in a driving time quantum, loading conduction signals to a third scanning signal line to allow driving transistors to transmit driving signals to driving electrodes to control motion locus of liquid drops. Driving units and the photosensitive detection units in the microfluidic system all employ transistors with no need for arrangement of other detection devices so as to improve manufacturing efficiency.

The invention relates to one time simultaneous method and system for multi-point visual point, which comprises the following steps: a, using network time agreement to process all device simultaneous operations; b, separately starting one collection program on collectors for each camera; c, visual collection program monitors control order from servo; d, the servo detects local network maximum reverse time; e, the servo adds current system time and the maximum reverse time as pre-set collection time sent to each collection program; f, collection program compares the current system time and pre-set collection time, if it supers then starting visual data collection.

The invention discloses a method for mobile terminal to update the electric quantity of a battery and the mobile terminal. The method comprises the steps that the battery voltage is collected when the mobile terminal system is started, and the original electric quantity of the battery is obtained through a pre-established voltage and electric quantity conversion table; the current battery voltage is collected to obtain the current collected electric quantity of the battery, and theoretical charging-discharging electric quantity of the battery of the mobile terminal is calculated according to a collection time interval; the collected electric quantity is compared with the original electric quantity, and whether the collected electric quantity is the real current electric quantity of the battery or not is judged in combination with the theoretical charging-discharging electric quantity; and if not, the real current electric quantity of the battery is estimated according to the theoretical charging-discharging electric quantity; and the original electric quantity is updated to the real current electric quantity of the battery and distributed to each functional module of the mobile terminal system. The method has the advantages that the real current electric quantity of the battery is accurately obtained through a battery charging-discharging pre-estimation mechanism, thereby effectively avoiding abnormal fluctuation phenomena from occurring when the electric quantity of the battery is updated by the mobile terminal.

The invention discloses a classroom teaching evaluation method and system based on expression recognition. The method comprises the steps that S1, teacher teaching images and time tags are stored in an associated mode; S2, student classroom images are processed, classroom performance standard reaching judgment is performed on the listening state and / or understanding degree of each student at eachcollection time point, if classroom performance does not reach a standard, each collection time point is marked as a video clip tag of each student; S3, classroom performance evaluation of the students is obtained; and S4, the dense degree of each knowledge point is calculated, all the knowledge points are ordered according to the dense degrees, and classroom teaching quality evaluation is performed based on the classroom performance evaluation in a student set. According to the classroom teaching evaluation method and system, teaching evaluation is refined to each knowledge point on a classroom; and time periods when the classroom performance of each student does not reach the standard are recorded through the video clip tags, so that it is convenient to grasp the learning effect and after-class review of each student and perform accurate evaluation on the classroom teaching quality through the listening states and the understanding degrees.

A preferred method for transmission electron microscopy includes a step of generating a microscopy signal. The microscopy signal is then detected with an active pixel detector that includes a plurality of pixels. Each of the pixels includes at least one photodiode. Each pixel integrates an incident signal over a collection time period. Using a massively parallel on chip analog to digital conversion, very fast read out times can be achieved, e.g., many frames per second. In a preferred embodiment, the read out time permits there to be a single electron event recorded per pixel, indicating either a single electron or the lack thereof. This permits simple accumulation of the pixel counts for each pixel in read-out and storage electronics.

The invention discloses a signal energy synchronous transmission relay transmission method in physical layer safety communication. The method comprises the following implementation steps that: 1) a source node transmits an energy signal and calculates an optimal energy collection time scale alpha<H>, and an unreliable relay node and a destination node collect energy; 2) in a first (1-alpha<H>)T / 2 time slot, the source node transmits an information signal x<s>, the destination node transits an interference signal x<z>, and the unreliable relay node receives the signals; 3) in a second (1-alpha<H>)T / 2 time slot, the unreliable relay node forwards the received mixed signals, and the destination node receives the signals; 4) the destination node performs adaptive interference cancellation for the mixed signals forwarded by the unreliable relay node, and performs information detection on the signals of which interference is cancelled. The method provided by the invention can effectively prolong network service life of a relay network, and has low implementation complexity and high transmission safety, thus, the method can be used for a physical layer safety relay collaborative communication system.

The invention relates to a judgment method for detecting defects of a wave absorption coating by using pulse infrared thermal waves and belongs to the technical field of nondestructive inspection. According to the judgment method, heating equipment for stimulating a test piece to be detected can be a high-energy flash lamp or other pulse type heating equipment; a high-energy flash lamp or other pulse type heating equipment with relatively short pulse acting time is suitable for being adopted; the collection frequency of a thermal imaging device is relatively high and the collection time is set according to the specific property of a material of the test piece to be detected. According to the judgment method, firstly, a standard test piece with a common defect type needs to be selected to be subjected to an experiment; thermal diffusion characteristics are extracted and defect judgment criteria are established to realize the judgment on different defect types; when the structure of the coating is changed, such as a coating material and a coating thickness, reconstructed unstuck defect criteria need to be referred.

A method for memorizing real time measure point data facing quick review comprises the following steps: a) dividing real time data measure data to be memorized into a real time group; b) entering theprocedure of real time group object initialization; c) entering the procedure of opening a historical data file; d) reading the time of the real time measure point and the real time data of all the real time measure points from a real time measure point data collection unit, and writing into a memory buffer zone after binary encoding; e) updating the collection time of the real time group by usingthe current computer time; f) judging whether the memory buffer zone is full, if yes, entering step g), and if not, entering step h); g) writing the data in the memory buffer zone into the historicaldata file and emptying the memory buffer zone; h) judging whether to carry out the next real time data collection, if yes, entering step d), and if not, entering step i); and i) obstructing the realtime group data collection thread for suspending for 2 seconds, and afterwards returning to step h).

An embodiment of the invention provides a method for realizing the synchronous collection, a wireless sensor network system and a synchronizing device. An upper machine of the wireless sensor network system transmits a collection command to the synchronizing device of the wireless sensor network system. When the synchronizing device receives the collection command, the current time is obtained. The current time is added with the prearranged time for being taken as the collection time. The collection time and collection command are transmitted to each wireless sensor network node. Each wireless sensor network code begins to collect data in the collection time when the collection time and collection command are received. Through transmitting collection time and collection command to each wireless sensor network node, each wireless sensor network node is leaded to collect data when gets to the collection time, and further the data collection by each wireless sensor network node at a same time is realized.

A method of recovering overpayment of long-term disability benefits after the receipt of Social Security disability insurance payment, providing post-award services and savings to claimants, and providing financial assistance to disabled claimants. The overpayment recovery service is seamless and provides for automatic recovery of overpayments from the claimant account and increases the percentage collected and reduces collection time over conventional methods. The methods of overpayment recovery post-award services and savings and the financial assistance may be utilized as integrated services.

The invention discloses an intelligent cooking method and an intelligent cooking type pot and stove combination product. The intelligent cooking method comprises the following steps that the user input is received so as to determine a preset dish, and an intelligent menu is read according to the preset dish; if the preset dish is read from the intelligent menu, an intelligent stove is controlled to adjust the gas flow according to a corresponding relationship between the cooking time and the temperature, and a user is reminded to execute corresponding cooking operation according to the corresponding relationship between the cooking time and the cooking operation instruction; if the preset dish is not read from the intelligent menu,, temperature information of a temperature control pot is collected after an collection instruction is received; the temperature information and the collection time are subjected to polynomial fitting so as to obtain the corresponding relationship between thecooking time and the temperature; and the cooking operation instruction input by the user is received, and the instruction receiving time and the cooking operation instruction are stored in an associative mode as the corresponding relationship between the cooking time and the cooking operation instruction. According to the intelligent cooking method and the intelligent cooking type pot and stovecombination product, the temperature and cooking operation information of each time node in cooking are recorded so as to form the intelligent menu, in the follow-up cooking process, the cooking duration and degree are controlled and the cooking operation of the user is guided according to the intelligent menu, and therefore the problems that the user cannot do the cooking and cannot do the cooking well can be solved.

The invention discloses a full-automatic multichannel air passage switching atmospheric sampling device which can be widely applied to various atmospheric sampling systems. The full-automatic multichannel air passage switching atmospheric sampling device comprises an atmospheric sampler (1), a closed multichannel air passage switching device (4) and a control unit (5). The full-automatic multichannel air passage switching atmospheric sampling device can be widely applied to the field of detection of environmental gas. According to the working requirement, the communication or closing of each channel can be controlled in the sampling process of the atmospheric sampling device by switching the air passages, so that the collection time and sequence of all sampling passages can be controlled; and the full-automatic multichannel air passage switching atmospheric sampling device has the advantages of small volume, low energy consumption and the like.

A method and counter for reducing the background counting rate in gas-filled alpha particle counters wherein the counter is constructed in such a manner as to exaggerate the differences in the features in preamplifier pulses generated by collecting the charges in ionization tracks produced by alpha particles emanating from different regions within the counter and then using pulse feature analysis to recognize these differences and so discriminate between different regions of emanation. Thus alpha particles emitted from the sample can then be counted while those emitted from the counter components can be rejected, resulting in very low background counting rates even from large samples. In one embodiment, a multi-wire ionization chamber, different electric fields are created in different regions of the counter and the resultant difference in electron velocities during charge collection allow alpha particles from the sample and counter backwall to be distinguished. In a second embodiment, a parallel-plate ionization chamber, the counter dimensions are adjusted so that charge collection times are much longer for ionization tracks caused by sample source alpha particles than for those caused by anode source alpha particles. In both embodiments a guard electrode can be placed about the anode's perimeter and secondary pulse feature analysis performed on signal pulses output from a preamplifier attached to this guard electrode to further identify and reject alpha particles emanating from the counter's sidewalls in order to further lower the counter's background.

The invention discloses a method for recognizing lithological characters while drilling, which mainly solves the problems of unclear horizontal boundary and serious rock debris collection time delay of the conventional cutting logging method. The method is characterized in that: actually drilling different rock samples on the ground, recording vibration signal generated under a condition of the combination of a plurality of groups of typical drilling parameters, acquiring different drilling parameters and a standard frequency spectrum under the condition of the combination of lithological characters by using quick Fourier transform, and storing the different drilling parameters and the standard frequency spectrum in a database; setting an orthogonal three-axis acceleration sensor, a two-axis strain transducer and a gyroscope in the drill collar of a near drill bit; and string the data collected by the three-axis acceleration sensor, the two-axis strain transducer and the gyroscope during the drilling of the drill bit, comparing the spectrum of data with the standard frequency spectrum for analysis, extracting data on vibration type, main frequency, frequency doubling and the like to form lithological feature codes, vibration characteristic codes and drill bit health code, and determining the lithological characters. The method can realize while-drilling recognition and has high recognition effect.

Provided is a flow generation method for Internet traffic measurement. In the flow generation method, dependency between packet collecting time and flow generating time is removed using a virtual timer and a flow generation completion processing interval is controlled to skip by a unit time in response to a user's request. Also, a fragmented packet processing method is selectively used at need and a FIN timeout is applied selectively to a timeout mechanism used in flow generation completion. Thereby, this invention can improve accuracy and efficiency of Internet traffic measurement.

A system and method for managing energy of an electric vehicle are provided to calculate a necessary amount of energy based on battery characteristics and a user's schedule, and control charging and discharging of the electric vehicle using power information provided by a smart grid. The system includes a cloud server configured to collect a schedule from a user and store and generate the user's schedule information, an energy management device configured to calculate necessary energy based on the received schedule information of the user, set charging information based on power network state information received from a power supplier and the calculated necessary energy, generate a charging request signal based on the set charging information, and store electric energy, and a charging unit configured to transfer the electric energy to the energy management device based on the received charging request signal.

Various items of data collected at different process steps are associated on production sites where traceability is hard to conduct. A quality control apparatus controls a manufacturing process in order to manufacture products of predetermined quality, including a data storing part which collects measurement data measured by multiple devices disposed in a manufacturing process and stores the collected measurement data along with measured time or collected time; and a scheduler which associates the measurement data of the devices with each other in consideration of dead time generated between the devices at measured time or collected time.