781 results about "Parallel detection" patented technology

Apparatus, method, logic arrangement and storage medium are provided for increasing the sensitivity in the detection of optical coherence tomography and low coherence interferometry (“LCI”) signals by detecting a parallel set of spectral bands, each band being a unique combination of optical frequencies. The LCI broad bandwidth source can be split into N spectral bands. The N spectral bands can be individually detected and processed to provide an increase in the signal-to-noise ratio by a factor of N. Each spectral band may be detected by a separate photo detector and amplified. For each spectral band, the signal can be band p3 filtered around the signal band by analog electronics and digitized, or, alternatively, the signal may be digitized and band pass filtered in software. As a consequence, the shot noise contribution to the signal is likely reduced by a factor equal to the number of spectral bands, while the signal amplitude can remain the same. The reduction of the shot noise increases the dynamic range and sensitivity of the system.

The invention is directed to a method and a device for detecting fault current arcing in electric circuits for consumers with relatively constant power consumption, particularly in onboard aircraft power supplies. The object of the invention is to find a novel possibility for detecting arc faults in electric lines of consumers with a relatively constant power consumption which appreciably reduces erroneous triggering of safeguards without compromising the reliability of switching off in the event that arcing actually occurs. This object is met, according to the invention, in that a voltage value is measured simultaneous with the current measurement, a ratio is formed of the current measurement values and voltage measurement values that are detected in parallel, and an indicator signal is generated for detected arcing when changes in the ratio of current measurement values and voltage measurement values exceed a predetermined threshold value.

Apparatus and method for increasing the sensitivity in the detection of optical coherence tomography and low coherence interferometry (“LCI”) signals by detecting a parallel set of spectral bands, each band being a unique combination of optical frequencies. The LCI broad bandwidth source is split into N spectral bands. The N spectral bands are individually detected and processed to provide an increase in the signal-to-noise ratio by a factor of N. Each spectral band is detected by a separate photo detector and amplified. For each spectral band the signal is band pass filtered around the signal band by analog electronics and digitized, or, alternatively, the signal may be digitized and band pass filtered in software. As a consequence, the shot noise contribution to the signal is reduced by a factor equal to the number of spectral bands. The signal remains the same. The reduction of the shot noise increases the dynamic range and sensitivity of the system.

Microfluidic assay detectors and microfluidic assay detection methods are disclosed. A microfluidic chip is coupled to a light emitting device, emission filters and excitation filters. Excited fluorescent light is detected by a camera and a lens. The correspondent reading allows parallel detection of features such as antigens and biomarkers. A microfluidic filter and related methods are also disclosed. The filter can be used with on-chip fluid filtration such as whole blood filtration for microfluidic blood analysis. The filter is able to filter the necessary volume of fluid and in particular blood in an acceptable time frame.

Methods and systems for out-of-application bytecode instrumentation and performance monitoring of applications, such as globally-distributed applications, decouple (1) acquiring measurements through sensor execution at applications; (2) instrumenting application bytecode with sensor bytecode and buffering and sending measurements at collector nodes; and (3) controlling instrumentation and correlating measurements at a central monitoring node. Collector nodes and applications may employ secured, high bandwidth network connections (e.g., a typical LAN connection). Collector nodes and the central monitoring node may employ non-secured, lower-bandwidth network connections (e.g., a typical WAN connection) and may use encryption and/or compression without burdening the monitored application. Multiple parallel instrumentation engines in collector nodes eliminate the possible instrumentation bottleneck presented by one centralized instrumentation engine in a single server. Moreover, decentralized buffering of monitoring event data allows management of peak measurement loads on the monitoring node.

The invention discloses a method and a system for detecting large-scale malicious web pages by using a three-layer parallel architecture and a layered control guarantee method: in the first layer, a plurality of detection servers interconnected via networks are arranged in parallel, so as to construct a detection server cluster, and a task set to be analyzed is set up on one detection server; in the second layer, a plurality of analysis nodes are arranged in parallel in each detection server, and a node cluster monitoring module is arranged so as to monitor and analyze the operating condition of the nodes; and in the third layer, a sandbox environment is constructed in parallel in each analysis node, so as to achieve the paralleled detection of the task to be analyzed. The architecture of the invention ensures the mutual independence and self-maintenance among the detection servers and among the analysis nodes, the overall operation of the system is free from the dynamic expansion of physical hosts and node numbers, and the overall function thereof is not affected by the invalidity of the single analysis node; and various tasks can be detected in a multi-channel and paralleled manner at the same time in the same node, thereby improving the analysis efficiency of the system.

Provided are nanoscale devices suitable for multiplexed, parallel detection of multiple analytes and methods for fabricating such devices.

A spectrometer that provides the ability to combine the advantages of high resolution, compactness, ruggedness, and low-power consumption of Fabry-Perot (FP) tunable filter spectrometer, with the multi-channel multiplexing advantage of FT and/or grating/detector array. The key concept is to design and operate a tunable FP filter in a multiple-order condition. This filter is then followed by a “low-resolution” fixed grating, which disperses the filtered n-order signal into a preferably matched N-element detector array for parallel detection. The spectral resolution in this system is determined by the FP filter, which can be designed to have very high resolution. The N-order parallel detection scheme reduces the total integration or scan time by a factor of N to achieve the same signal to noise ratio (SNR) at the same resolution as the single channel tunable filter method. This design is also very flexible, allowing spectrometer systems with appropriate order N to thereby optimize the system performance for spectral resolution and scan integration time. In addition to the significant reduction in scan integration time, there are two other advantages to this approach. The first, because the FP tunable filter is designed and operated under n-orders, the fabrication tolerances of the FP filter cavity and operating conditions are significantly loosened.

A method for controlling an uninterruptible power supply (UPS) for servicing a load is disclosed. The UPS has a bypass feed path operable in parallel with an inverter feed path, the bypass feed path being engagable with the load via a first switch, and the inverter feed path and being engagable with the load via a second switch. The method includes: generating a paralleling detection signal indicative of the bypass feed path operating to service the load in parallel with the inverter feed path; and, in response to the presence of the paralleling detection signal, modifying a control signal to an inverter such as to drive toward equalization the bypass current and the inverter current. As a result, and in response to the two paths operating to service the load in parallel, the method tends to cancel circulation current generated between the bypass feed path and the inverter feed path.

An intrusion detection system (IDS) comprises a network processor (NP) coupled to a memory unit for storing programs and data. The NP is also coupled to one or more parallel pattern detection engines (PPDE) which provide high speed parallel detection of patterns in an input data stream. Each PPDE comprises many processing units (PUs) each designed to store intrusion signatures as a sequence of data with selected operation codes. The PUs have configuration registers for selecting modes of pattern recognition. Each PU compares a byte at each clock cycle. If a sequence of bytes from the input pattern match a stored pattern, the identification of the PU detecting the pattern is outputted with any applicable comparison data. By storing intrusion signatures in many parallel PUs, the IDS can process network data at the NP processing speed. PUs may be cascaded to increase intrusion coverage or to detect long intrusion signatures.

An optical network monitor and a method for monitoring the optical signals of an optical network including a spectrograph that includes a detector array, a processor and outputs. The network monitor receives an optical input signal which includes individual channels. The optical signal is transmitted onto the spectrograph which disperses the optical signal into the individual channels. The individual channels are directed onto the detector array so that the channels are spaced across the detector array. The detector array detects the channels in parallel and transmits to the processor channel parameter data which is processes the parameter data through internal algorithms to produce the outputs.

The invention provides a rotary type high-accuracy automatic sorting device for internal thread detection of a small-sized revolved body workpiece, and an automatic sorting method adopting the device. The device comprises a loading channel, a first vision detection station, a turnover mechanism, a thread go gauge detection mechanism, a second vision detection mechanism, a thread no-go gauge detection mechanism, a high-accuracy rotary index plate, a discharging mechanism and a base. According to the rotary type high-accuracy automatic sorting device for internal thread detection of the small-sized revolved body workpiece, the equipment adaptability is strong, a user can realize self-defined classification, and multi-station parallel detection for multiple workpieces can be realized, therefore, the detection efficiency is greatly improved.

Disclosed is an optical time domain reflectometer simultaneously sensing temperature and stress. The system is based on parallel detection of Rayleigh and Brillouin scattered light and includes devices such as a multi-wavelength laser source, a light-pulse modulator, a balance detector, a microwave amplifier, a high-speed data acquisition card, a coupler and a circulator and the like. In the optical time domain reflectometer, the frequency interval of wavelengths of the multi-wavelength laser source is arranged to be in a range of 9-12 GHz, which is equivalent to a frequency shift quantity of Brillouin scattered light in a fiber. A heterodyne coherent detection method is used to carry out parallel detection on Rayleigh and Brillouin scattered spectra and temperature and stress information is demodulated through a Landau-Placzek ratio (LPR) and Brillouin frequency shift distribution; and at the same time, coherent Rayleigh noises are reduced and superposition of the scattered spectra improves the signal-to-noise ratio of the scattered light. The optical time domain reflectometer is capable of realizing simultaneous temperature and stress sensing of a distributed fiber sensing system, improving the signal-to-noise ratio of the scattered light and improving the sensing precision and distance.

The invention relates to a rapid parallel nucleic acid detection method and system based on a micro-fluidic chip. The nucleic acid detection system comprises a micro-fluidic chip, a motor, exciting light, a double-focal-plane imaging lens set, a detector, a signal acquisition processor and a display; the micro-fluidic chip comprises at least one reaction channel; a heating film is arranged at the periphery of the micro-fluidic chip; a submillimeter air layer is maintained between the micro-fluidic chip and the heating film; and the micro-fluidic chip is irradiated by adopting the exciting light, so that a nucleic acid sample generates fluorescence under excitation of the exciting light, the fluorescence is gathered on the detector by virtue of the double-focal-plane imaging lens set so as to generate an analog signal, the detector transmits the generated analog signal to the signal acquisition processor so as to generate a real-time fluorescence detection signal, and the real-time fluorescence detection signal is displayed by the display. The method and the system disclosed by the invention can be applied to the fields of clinical pathogenic bacterium molecular diagnosis, food inspection and quarantine, food poisoning pathogenic bacterium detection, bacteriology classification and epidemiological investigation and have huge economical and social benefits.

The invention discloses a spectral domain OCT detecting system and method based on segmented spectrum optical path coding. A dichroscope is arranged in a traditional reference arm, so that a light source spectrum is divided into two portions which arrive at a transmission light path and a reflection light path respectively. Due to the fact that the positions of plane mirrors in the transmission light path and the reflection light path are different, and the two portions of the spectrums cover different optical paths in the reference arm and interfere with returning light of two different depth sections in a sample. After the two portions of spectrum interference signals enter a detection arm, the spectrum interference signals are detected by pixel points in different regions of a CCD in a spectrometer, spectrum parallel obtaining is achieved on the non-aliasing condition. On the condition that the detection arm and a sample arm of spectrum domain OTC are not changed, a simple light splitting structure is additionally arranged in the reference arm, arrangement of different zero-optical-path positions in a sample and parallel detection of double reference arm spectrum domain OCT signals are achieved, and imaging range of the spectrum domain OCT is broadened.

The invention provides a safety helmet positioning and color recognition method and system based on deep learning, and the method comprises the steps: collecting image information, obtaining a movingobject image in the image information, and enabling the moving object image to serve as a region of interest; inputting the region of interest into a pre-established convolutional neural network model, and performing multi-target parallel detection on the image information according to a preset target classification; obtaining a parallel detection result, wherein the detection result at least comprises human head position information and safety helmet position information; judging whether a person wearing the safety helmet in the collected image information is judged according to the paralleldetection result, and when it is judged that the person does not wear the safety helmet, giving out alarm information; according to the invention, a designated area can be continuously and effectivelymonitored, safety accidents caused by the fact that personnel do not wear the safety helmet are prevented, manual intelligent analysis and processing are replaced, alarm signals are sent out in realtime, and the problems of high universality, low stability and low accuracy of security video monitoring are solved.

A method for measuring Brillouin backscattering comprises obtaining a signal representative of backscattered Brillouin light received from a deployed optical fibre, and dividing the signal into a plurality of signal components each having a different frequency hand. Each signal component is delivered to one of a plurality of parallel detection channels, in which the components are detected, and the signal generated by the detection is sampled using an analog-to-digital converter. The samples are then processed to determine one or more properties of the Brillouin spectral line. Detection may be optical, where the backscattered light is dispersed into a plurality of optical frequency components, or electrical, where the backscattered light is first frequency mixed to downconvert the frequency to the microwave regime.

The present invention provides methods for detecting a target pathogenic agent, e.g., a virus, a bacterium, and/or a toxic substance, using colocalization detection. The invention also provides methods for parallel detection of different target pathogenic agents in a sample using multiplexed labeling and colocalization detection. The invention also provides kits comprising sets of probes for detecting pathogenic agents. The invention further provides computer systems and computer program products for carrying out the method of determining degrees of colocalization.