99results about How to "Flexible detection method" patented technology

The invention discloses a positioning device and a positioning method for fault detection of local discharge, and the positioning device comprises two sensors, a local discharge detection positionfinder and a computer, wherein, the two sensors consist of an electromagnetic sensor and a resonant ultrasonic sensor; the local discharge detection positionfinder is internally provided with double-signal paths in parallel; the positioning device also comprises a data acquisition card and a liquid crystal display (LCD) which are connected with the output ends of the double-signal paths; one path of the double-signal paths is an electromagnetic path connected with a peripheral electromagnetic sensor, while the other path thereof is an ultrasonic channel connected with a peripheral resonant ultrasonic sensor; one path is displayed by the LCD connected with the acquisition card, and the other path is sent to a peripheral computer through data wires after signal received by the electromagnetic path and the ultrasonic path is processed by the acquisition card. The test method is simple and flexible, has easy operation and strong anti-interference performance, overcomes the defect of single detection method for local discharge in the prior art, and can realize accurate detection and position on local discharge fault points in power equipment.

An immune chromatographic method includes fixing capture antigen or antibody directly on chromatographic film (PH) by physical absorption means, adding sample liquid and label antibody on sample cushion side of PF and forming immmune composite through immune reaction, detecting formed detection and control belts, sticking PE, sample loading cushion, label cushion and water absorption cushion in sequence on backing. The test paper is also disclosed.

The invention relates to an acoustic-electric detection device for the insulation defects of a power cable, characterized by comprising a cable to be detected and a two-channel detection mechanism connected with the cable to be detected. The output end of the two-channel detection mechanism is connected with a receiving device and comprises an electromagnetic wave detecting head and an ultrasonicwave detecting head; the electromagnetic wave detecting head is connected with the cable to be detected; the surface of the ultrasonic wave detecting head is coated by silicone grease; the electromagnetic wave detecting head and the ultrasonic wave detecting head are electrically connected with respective signal acquisition processors and transfer cable insulation defect signals detected by the two-channel detection mechanism to the signal acquisition processors; and the signals processed by the signal acquisition processors are sent to a signal displaying and alarming system to detect and alarm the insulation defects of the cable. Partial defects in the cable are found and positioned as early as possible by the online monitoring or the routing inspection of the partial discharge of the cable. The invention finds the partial defects in the cable as early as possible, grasps the operation conditions of the cable in time and prevents major accidents from occurring.

The invention discloses a portable Terahertz remote sensing detector and a remote detection method. The detector comprises a signal generating device, a detector, a processor and an imaging display device, wherein the signal generating device comprises a Terahertz wave radiation source, a broadband tunable laser and a plasma generator; and the detector comprises a receiving element, a detecting element and a signal modulation circuit. The detection method comprises the following steps of: 1, dividing scanning subregions and pixel points and encoding scanning output frequencies of various scanning subregions; 2, arranging an assembly and generating a remote detection signal; 3, performing two-dimensional scanning; and 4, performing signal analysis processing, namely rapidly imaging and generating a Terahertz wave image with frequency spectrum characteristics, identifying a material type of a tested object, generating a charge coupled device (CCD) image and identifying the shape of the tested object. The detector is reasonable in design, easy to operate, flexible in detection mode, wide in application range and good in detection effect, and can fulfill the aims of rapidly imaging and remotely detecting by combining THz and induced fluorescence spectrum analysis with space imaging.

The invention relates to a nanosecond detection system based on a random pulse time sequence of an ultra high-speed data acquisition card, and relates to computer application technology and data acquisition and processing technology, in particular to detection and processing technology for the random pulse time sequence. The system performs data acquisition and on-line detection based on a 1GS / s ultra high-speed A / D converting unit and an FPGA high-speed processing unit, and can quickly and accurately detect pulse time in a quick-logic narrow-pulse sequence. The detection for the pulse time is to calibrate the pulse time by pulse peak positions through a particularly designed PeakTDC hysteretic peak value detection algorithm carried on the FPGA, and the time accuracy is 1ns. The system can obtain TDC time data conversion of quick response random events in finite nanosecond random pulse sequences on a time bin axis, and performs the detection on multi-channel pulse signals on line and highly synchronously with high speed and large capacity.

The invention discloses a double-axis synchronous movement control device and method based on the feedback of a laser displacement sensor, and the device comprises a double-axis synchronous movement control device body, a displacement detection system, and a control module. The double-axis synchronous movement control device body comprises a first drive mechanism, a second drive mechanism, a first linear movement platform, a second linear movement platform, and an experiment table. The displacement detection system comprises a long-distance laser displacement sensor, a high-precision laser displacement sensor, a reflecting plate, a workbench, a first dividing plate, and a second dividing plate. The control module is connected with the first drive mechanism, the second drive mechanism, the long-distance laser displacement sensor and the high-precision laser displacement sensor. The device enables the movement range of the double-axis synchronous movement control to be enlarged, breaks the limits of a conventional fixed-type detection device, does not need to return to zero, achieves the synchronous movement stably, accurately and quickly, and can quickly recover the synchronization when interference appears and the movement is not synchronous.

The invention provides a method and device for identifying risk users. By means of the method and device for identifying the risk users, users who spread junk information related to bad behaviors on purpose can be identified, and accordingly harm caused by the bad behaviors can be further reduced. The method includes the steps that all punished users are acquired as junk users; information initiated by each junk user is acquired, all associated users of the junk users are analyzed through the initiated information, and the weight of the associated users in the junk users is calculated, wherein the associated users are users who interact with the information initiated by the junk users; the junk users corresponding to the associated users are analyzed with the associated users as dimensionality, and the associated users are identified as the risk users according to the junk users corresponding to the associated users and the weight of the associated users in the corresponding junk users; the identified risk users are monitored, and operating authorization of the risk users is limited.

The invention belongs to the field of pharmacogenomics and genetic diagnosis, and relates to a method used for detecting HLA-B*5801 alleles. The method comprises following steps: a DNA sample to be detected is taken, three pairs of specific primers and a pair of internal primers are taken, amplification of DNA segments is realized by using sequence specific primer method, and then the results of the amplification are analyzed by agarose gel electrophoresis; or sample DNA is extracted, a pair of specific primers, a pair of internal primers and three fluorescence probes are taken, amplification of DNA segments is realized by Taqman probe method using a fluorescence ration PCR instrument, and then the amplification curve is analyzed so as to obtain results. Results analysis methods such as agarose gel electrophoresis, high resolution melting curve and SYBRGreen fluorogenic quantitative PCR are employed in the method. The method has advantages of speediness, convenience, flexibility, high resolution and no contamination; is suitable for detection of HLA-B*5801 alleles in samples such as peripheral blood and hair; and can be used for determining the probability of severe skin adverse reaction of patients with gout or hyperuricemia caused by taking of allopurinol.

The invention discloses an automatic solid grain sorting system which comprises a grain queuing device for sequentially transferring the solid grains and transmitting single grains to a signal collecting area, a signal collecting device connected with the grain queuing device and used for collecting information of the solid grains in the signal collecting area, an information processing device which is used for carrying out information processing on solid grain information data collected by the signal collecting device to judge the attributes of the grains and sending the attribute signals to a grain sorting device, and the grain sorting device connected with the information processing device and used for acquiring the attribute signals and sorting the solid grains according to the attribute signals.

The invention discloses a method for rapidly detecting the content of aflatoxin. The method comprises the following steps of: after smashing a sample to be detected, putting the sample powder into a beaker, and adding an extractant for shaking or performing ultrasonic extraction; filtering, performing water bath evaporation on a filtrate, and metering the volume to obtain a test sample; respectively pointwise adding the test sample and an aflatoxin B1 standard substance which are commensurate on a thin-layer silica gel plate, pointwise adding derivative reagents into sampling points, and respectively developing by developers; and comparing the fluorescence intensity of the test sample and the aflatoxin B1 standard substance under an ultraviolet lamp to judge whether the content of the aflatoxin in the test sample exceeds the standard. The method for rapidly detecting the content of the aflatoxin has the advantages of small solvent amount, simple sample treatment and short measurement time; the method does not need a professional, only needs small apparatus, and is particularly suitable for rapid field detection; and the method effectively avoids the harm and the pollution of trifluoroacetic acid to operators and the environment, improves the method sensitivity, and has the lowest detectable amount of 0.00032 mu g and the lowest detection limit of 3 mu g / kg.

The invention discloses a bearing roller pin size detection system and method based on machine vision. A single low-cost 2D camera is used for collecting images. An industrial camera is used to acquire the images. The acquired images are stored in an industrial personal computer. The industrial personal computer processes the images. Background interference is removed from the processed images byusing horizontal and vertical projection methods, angle correction is performed on an extracted ROI area. A ROI image is converted into a binary image by using a threshold segmentation method, and filling is performed to ensure that an internal color of a contour of a roller pin is white. Contour extraction is performed on the processed image. A detection size of the roller pin is calculated according to a proportional relation between a visual field range of the camera and an image pixel, the roller pin with a qualified size arrives at a storage box along with a transmission belt, and for theroller pin with a unqualified size, an elimination signal is sent to PLC by the industrial personal computer, and an elimination mechanism is controlled to eliminate the roller pin through the PLC. The roller pins moving on an assembly line are detected and removed in real time.

The invention discloses a distributed converter transformer direct current bias detection system and a detection method thereof. The detection system comprises a plurality of detection terminals. Each detection terminal comprises a sensor module, a data acquisition module, a central controller, a communication module, a clock module and a power supply module; the sensor module comprises a microphone, an acceleration sensor and a current transformer. The method comprises the steps of installing a detection terminal in advance, separately acquiring a noise sound pressure level of noise signals, a 1 / 3 times frequency spectrum, a speed amplitude of vibration signals and a neutral point current effective value in two operation modes which are a normal operation mode of a converter transformer and a single-pole ground-loop debugging operation mode, comparing differences between acquired data in the two operation modes and diagnosing whether the converter transformer belongs to a direct current bias treatment scope according to the difference. The distributed converter transformer direct current bias detection system and the detection method thereof of the invention can overcome problems of a broad distribution scope and a large quantity of transformer stations, do not need excessive manpower and equipment resources, and have advantages of a flexible mode and relatively low cost.

The invention relates to super-resolution dual-axis differential confocal measurement method and device for division focal spot detection, which belong to the technical field of optical precision measurement. By utilizing the characteristic that the transversal deflection of a detector makes the axial response curve of the dual-axis confocal microscopy generate displacement, adopting the transversal differential detection method of a division focal spot to receive and process a measuring optical beam in the dual-axis confocal microscopy, and combining a super-resolution pupil filtering technology, the method and the device achieve the purposes of enhancing the system resolution, extending the working distance, enhancing the anti-jamming capability and improving the linear range. The invention can be used for the precision measurement of microelectronics, materials, industry precision detection, biomedical field and the like.

The invention belongs to the technical field of spectrum measurement, and relates to a high spatial resolution biaxial differential confocal spectrum imaging method and an apparatus. According to the present invention, the biaxial differential confocal microscopy technology and the spectrum detection technology are fused, focal spot cutting differential detection is adopted so as to achieve precise imaging of the geometry position, simplify the optical path structure of the traditional differential confocal microscopy system, inherit the advantages of large visual field and large work distance of the biaxial microscopy technology, and achieve high spatial resolution spectrum integrated detection of the system; and high spatial resolution is provided, three modes such as three-dimensional tomography geometry imaging, spectrum detection and micro-region spectrum tomography imaging are provided, a new solving approach is provided for micro-region spectrum detection, and broad application prospects are provided in the fields of biomedicine, physical material science and the like.

The invention provides a method by which the detection accuracy of a detection signal can be improved aiming at the condition that user equipment (UE) transmits the detection signal by using a plurality of antennas and which can be flexibly used for the UE under different environments. The method comprises the following steps that: the UE receives a detection signal transmission instruction signaling which is transmitted by a base station, wherein the detection signal transmission instruction signaling comprises a detection signal transmission moment of the UE; and in a set detection signal transmission time interval or a detection signal transmission time interval which is noticed by the base station, the UE transmits the detection signal from the plurality of antennas by using the same detection signal sequence in a transmitting antenna mapping mode at transmission moments which are indicated by adjacent base stations. Corresponding to the method implemented on a UE side, the invention also correspondingly provides a method on a base station side and corresponding user equipment and base station.

The invention discloses a device and method for detecting the combustion characteristic of tail gas containing high-concentration CO. The device consists of a gas distribution induction system, a combustion system, a data acquisition processing system and a smoke discharge system. In the invention, a combustion chamber of the combustion system adopts a heat-insulation combustion mode, and a good heat insulation effect is realized; the system is uniform and stable; as the smoke discharge system is arranged in the device, the safe operation of the detection is ensured; research on the combustion characteristic of the tail gas with different CO components can be performed, and the research on the combustion characteristic of the tail gas can be performed in laboratories and production practice; and the device has the advantages of high feasibility, flexible detection mode, simple process, high safety, good stability and the like, and can be used for controlling the air input and air ratio.

A production method of a fluorescently-labeled test strip for rapidly testing avian influenza virus (AIV) belongs to the technical field of diagnosis and test methods of animal epidemic diseases. the test strip comprises a sample pad, a conjugate pad, a nitrocellulose membrane, an absorbent pad and a support plate. The sample pad, the conjugate pad, the nitrocellulose membrane and the absorbent pad are successively adhered to the support plate in turn. The conjugate pad is in overlap joint with the nitrocellulose membrane, and the nitrocellulose membrane is in overlap joint with the absorbent pad. An AI monoclonal antibody A, a fluorescent label is coated on the conjugate pad. A test line formed by an AI monoclonal antibody B and a quality control line formed by goat anti-mouse IgG are respectively coated on the nitrocellulose membrane. The test strip has the advantages of strong specificity, high sensitivity, short test time (20min), low test cost, simple and convenient operation and no need of professionals for operation, etc.

The invention discloses a speech emotional dimensions region automatic recognition method, and belongs to the technical field of speech recognition technology. A characteristic space reconstruction method is adopted to optimize a classifier. Firstly, a basic acoustic characteristic is extracted and optimized to become a standard for distinguishing emotional regions; secondly, the characteristic space reconstruction method is adopted to decompose and pair a plurality of emotional characteristic spaces, an LDA and an PCA module-cascade methods are separately adopted to improve the dispersion degree between target classes; and thirdly, two emotional region partitioning methods that four regions and sixteen regions partitioning methods are provided to perform complex emotion decomposing instead of traditional basic emotional type decomposing, the classifier outputs are combined through the relative calculation to perform the emotional region recognition, so that a better recognition result is obtained.

This invention relates to a method for testing phone signal transmission channels and a call control system, in which, said method includes: obtaining phone signals from the gateway at the fourth line side of the PSTN exchanger, if the PSTN channel stipulated by the national standard and related standard is forbidden to carry the energy gravity larger than a preset threshold, then it is decided that the front of the phone signal is converted from a parameter code to G711 code or transmitted by the IP communication network applying parameter code technology, otherwise, it is judged that said front is transmitted in the PSTN.

The invention provides a digital steel wire rope flaw detection sensor.The digital steel wire rope flaw detection sensor comprises a probe and a plurality of digital communication interfaces, wherein the probe is used for detecting the faulted condition of a steel wire rope and generating corresponding detection signals, and the digital communication interfaces are respectively connected with the probe and an external processor and used for transmitting the detection signals from the probe to the external processor.The digital steel wire rope flaw detection sensor can improve the detection efficiency of steel wire rope flaws and antijamming capability in the detection process, and therefore the accuracy and reliability of a detection result are guaranteed.

The invention designs a primer-probe combination capable of amplifying HLA-B * 5801 allele with high specificity based on a TaqMan probe detecting method: Fp: 5'-AGGGGCCGGAGTATTGGGATG-3', Rp:5'-TTGGCCTCAACTGAAAATGAAAC-3', MGB probe: 5'-HEX-VI-TCAGGGAGGCGGATCTCGGAC-MGB3'; meanwhile, by virtue of primers and probes for a reference gene ACTB, a target gene and the reference gene are added into a tube to have a dual-channel fluorescence quantitative PCR reaction, and the result is analyzed by an amplification curve. The method provided by the invention is simple and convenient, flexible, fast, high in specificity, high in throughput, pollution-free, and high in resolution, and is applicable to detection of the HLA-B * 5801 allele of whole genome DNA samples in human peripheral blood and saliva.

The invention provides a method used for detecting the remaining quantity of cop latch base lines of a sewing machine. Reflective paper is attached to the outer surface of a cop latch disc of the sewing machine. The reflective paper is in a ring mode provided with black strips and white strips, and the black strips and the white strips alternately arranged and evenly distributed. A sensor is right opposite to the reflective paper and is in communication with an electronic control unit of the sewing machine to detect the total number Nx of the black strips where the reflective paper rotates when a machine needle of the sewing machine moves a preset number x of threads every time, and a signal is generated and transmitted to the electronic control unit. The method includes the steps that the electronic control unit receives the signal related to the needle distance B, the fabric thickness H, the cop latch bottom diameter d, the total number N of the black strips of the reflective paper and the total number Nx of the black strips where the reflective paper rotates when the machine needle of the sewing machine moves the preset number x of threads every time; secondly, by means of the electronic control unit, the cop latch base line remaining line thickness h of the sewing machine is calculated through the formula (please see the formula in the specification) shown in the specification. By means of the method, the remaining line quantity of a cop latch can be precisely detected.

The invention discloses a simple thickness detection tool of a brake disc. The tool comprises a detection platform, a support rack, a detection assembly and a rotation bench. A detection plane is arranged on the detection platform. A moving sliding rail is fixed on the detection plane. The support rack is slidably connected to the moving sliding rail. A detection sliding rail perpendicular to the detection plane is arranged on the support rack. The detection assembly comprises a sliding block and two detection blocks. The sliding block is slidably connected to the detection sliding rail. The detection blocks are fixedly connected with the sliding block. A detection gap which is in clamped connection with the to-be-detected brake disc is formed between the detection block. The rotation bench is fixed on the detection plane and used for supporting the to-be-detected brake disc. According to the invention, by rotating the brake disc for a round on the rotation bench, detection of the thickness of the brake disc can be finished, so the manufacturing cost is reduced, occupied area is reduced, the detection method is flexible, and the detection precision can meet requirements.

The invention discloses an SNP marker for identifying germplasm resources of kidney beans and a screening method thereof. 200 parts of germplasm resources of kidney beans are used a research object, aIIB-RAD technology is adopted, and a standard 5'-NNN-3' linker is utilized to be ligated with a digestion label; after library quality control is quantified, double-end sequencing is performed on anIllumina Hiseq Xten platform to select a minimum SNP locus combination suitable for identifying 200 parts of germplasm resources of kidney beans, which provides technical support for the establishmentof a technical system for high-throughput identification of germplasm resources of kidney beans. The number of SNP markers is high, the coverage of genomes is high, the typing operation is simple andhigh in accuracy, and a uniform standard can be formed in different environments. Compared with the SSR, the SNP has more advantages in species authenticity identification and database construction.SNPs are denser and more uniform in the genomes, making it easier to achieve data integration comparisons and higher throughput.

The invention provides a passive optical network system and a detection method for customer premise equipment of the passive optical network system. The detection method includes that when the customer premise equipment is abnormal and signal receiving strength is zero, a dichotomizing searching method is used for performing dichotomization on a total set for three times; a first subset and a second set, a second subset and the second set, a third subset and a first set and a fourth subset and the first set are tested through a burst clock and data recovery method, if test results are right, the subsets corresponding to the right test results are eliminated, the rest subsets and sets form the total set, the dichotomizing searching method is used for performing dichotomization and tests on the total set again, if test results are wrong, random sort is performed on all customer premise equipment in the total set through an equal probability random sort algorithm, and the dichotomizing searching method is used for performing dichotomization and tests again until all abnormal customer premise equipment is detected. According to the passive optical network system and the detection method for the customer premise equipment of the passive optical network system, time consumption is reduced, logical complexity is lowered, and the detection method is flexible.

The invention discloses a fatigue driving monitoring method based on blink detection, and the method comprises the steps: 1, image collection: uploading a face image collected at each sampling moment to an image processor synchronously; 2, image processing: enabling the image processor to carry out the analysis processing of the face images received in each analysis processing period, wherein the analysis processing process comprises the following steps: 201, carrying out the analysis processing of the face images collected in the first analysis processing period; 202, carrying out the analysis processing of the face images collected in the next analysis processing period; 203, repeatedly carrying out the step 202 for M-3 times; 204, carrying out the analysis processing of the face images collected in the next analysis processing period and carrying out the fatigue driving judgment; 205, returning to step 204. The method is simple in step, is reasonable in design, is convenient to implement, is good in use effect, can carry out the accurate monitoring of the fatigue driving state of a driver conveniently and quickly based on the blink detection of a driver face image, and is high in practical value.

The invention discloses an information processing method and electronic equipment. The information processing method is applied to first electronic equipment, and comprises the steps that the first attitude information with the relative attitude between the first electronic equipment and a user being as a first attitude is acquired through a first collecting unit; when a target communication identifier is displayed on a display unit, the second attitude information of the relative attitude is acquired; whether the relative attitude is adjusted to a second attitude meeting a preset condition from the first attitude is judged according to the second attitude information and the first attitude information, wherein the second attitude is different from the first attitude and is the attitude capable of meeting the demand for video call between the first electronic equipment and the user; when the relative attitude is adjusted to the second attitude from the first attitude, video communication connection is established with second electronic equipment corresponding to the target communication identifier. According to the technical scheme, the technical problem that the operation mode is single when the video communication connection is established by the electronic equipment in the prior art is solved, and the number of operation modes for establishing communication connection is increased.

A movable detection robot for a flexible building structure comprises two moving sensing nodes, a flexible steel belt and an acceleration sensor used for achieving vibration detection on the to-be-detected building structure. The two moving sensing nodes are fixedly connected through the flexible steel belt. After the two moving sensing nodes move in the opposite directions, the flexible steel belt is in a downwards-concaved shape, and the lowest downwards-concaved point is close to and is attached to a steel belt on the surface of the to-be-detected building structure. The acceleration sensor is arranged on the bottom face of the flexible steel belt and located at the lowest downwards-concaved position. Each moving sensing node comprises a frame and two magnetic wheels, wherein the two magnetic wheels are arranged on the two sides of the frame and used for being connected with a walking drive device used for driving the magnetic wheels to rotate. Each frame is provided with a wireless communication unit. The movable detection robot for the flexible building structure is flexible in detection manner, low in cost, convenient to carry, capable of effectively eliminating a detection blind area and more comprehensive in detection.

According to the internal attack detection method based on the weighting rule and the consistency in the CPS system, the method is based on a CPS system application scene and comprises four participants, namely credible authority; A control center; A gateway; and a network node. The method comprises the following specific steps: (1) a network node data reporting stage; (2) a behavior rule identification stage; (3) a state machine generation stage according to a rule; (4) a consistency data collection stage; (5) a fitting consistency distribution stage; And (6) an internal attack detection stage. By adjusting and optimizing related configuration parameters such as the rule weight and the normal / abnormal node distinguishing threshold, the detection method has the characteristics of simplicity, flexibility and accuracy.

The application discloses an information processing method, an electronic device and an external device. The method is applied to the electronic device, the electronic device can be physically disconnected from or connected to the external device, wherein when the electronic device is physically connected to the external device, at least part of the area of a first surface of the electronic device can be covered by the external device; a power supply mechanism is also arranged on the electronic device. The method includes the following steps: in the process of physically connecting the electronic device with the external device, whether a first parameter related to the electronic device meets a predetermined condition is detected; when the first parameter meets the predetermined condition, a trigger instruction is generated; the trigger instruction is executed, so that the power supply mechanism is controlled to be in an operating state to charge the external device.