35results about How to "Efficient test results" patented technology

The invention discloses a performance test simulation platform of a doubly-fed type wind turbine generator system frequency conversion controller. The performance test simulation platform comprises an RTDS (real time digital simulator), multiple voltage signal power amplifiers, multiple current signal power amplifiers and multiple photoelectric isolation devices. The RTDS is provided with an analog quantity output interface plate and a digital quantity input interface plate. A power grid digital simulation model with a doubly-fed type wind turbine generator system is established by the RTDS, the RTDS and a tested doubly-fed type wind turbine generator system frequency conversion controller entity are in signal connection through the voltage signal power amplifiers, the current signal power amplifiers and the photoelectric isolation devices, a digital-physical dynamic real-time closed-loop semi-entity wind turbine system is formed, and then the network entry performance of the tested doubly-fed type wind turbine generator system frequency conversion controller entity can be tested through the power grid digital simulation model of the RTDS. The performance test simulation platform has the beneficial effects that the test result is accurate, and high efficiency is achieved.

The invention discloses a plate-type conveying chain failure early-warning method, which includes the steps: setting occurrence frequencies of chain shafts when a plate-type conveying chain is in normal operation; detecting the occurrence frequencies of each chain shaft when the plate-type conveying chain is in operation; performing failure recognition and judgment for the plate-type conveying chain by comparing the set frequencies with the detected frequencies of the chain shafts; and performing early-warning control for a driving device for the plate-type conveying chain according to failure recognition and judgment. A plate-type conveying chain failure early-warning system comprises a detecting device, a control unit and an early-warning device, wherein the control unit is used for controlling the early-warning device and the driving device for the plate-type conveying chain according to failure recognition conditions. By the aid of the plate-type conveying chain failure early-warning system, the operation conditions of the plate-type conveying chain can be effectively guaranteed to be constantly detected during operation of the chain, so that stability, reliability and safety during production are guaranteed.

The invention discloses an Android application concurrent vulnerability detection system. The system comprises a concurrent vulnerability analysis module, an application plug-in mounting module and an application performance module. The concurrent vulnerability analysis module is used for analyzing potential concurrent vulnerabilities in an application and transmitting the potential concurrent vulnerabilities to the application instrumentation module. The application instrumentation module carries out instrumentation on a statement capable of changing thread scheduling at a position of suspected data race code according to a detection result of the concurrent vulnerability analysis module, carries out instrumentation on control code capable of blocking thread operation at the position of a background thread entrance method and carries out instrumentation on background service for obtaining application operation moment state information. The application performance module operates the instrumented application, generates paired suspected events and sends the events to the application, thereby triggering potential concurrent vulnerabilities. According to the system, the detection result is accurate and efficient, and a whole process is automated without extra participation of a user.

The invention discloses a test device for a variable pitch controller, relates to the technical field of wind power generation, and aims to provide a device capable of realizing automatic test to the variable pitch controller. The technical point of the invention is that the device comprises an application layer, a PXI (PCI eXtensions for Instrumentation) system, an interface control box, an adapter plate, display equipment and input terminal equipment, wherein the PXI system comprises a PXI controller and a PXI card; the adapter plate comprises an interface circuit and an adapter plate controller; the PXI controller and the PXI card are in signal connection through a PXI bus; the interface control box is used for connecting signal interfaces of the PXI card correspondingly to signal interfaces of the adapter plate; partial signal interfaces of the adapter plate are used for connecting signal interfaces of the interface control box to corresponding signal interfaces of a tested variable pitch controller in a distribution way; and the other signal interfaces of the adapter plate are used for connecting signal interfaces of the adapter plate controller with corresponding signal interfaces of the tested variable pitch controller.

The invention belongs to device detection equipment, and in particular relates to a dry leak testing machine. The dry leak testing machine mainly comprises a vertical bracket, a longitudinal cylinder, a transverse cylinder and an airtight leak detector, wherein the vertical bracket comprises an upper workbench and a lower workbench by a fixing column; the airtight leak detector is arranged on the upper part of the workbench, and the longitudinal cylinder is fixed on the lower part; the lower workbench is provided with a bottom plate; an air duct is arranged in the bottom plate and is connected with the air outlet of the airtight leak detector via an air tube; one side of the transverse cylinder, which is arranged on the bottom plate, is fixed on the lower workbench; and the transverse cylinder piston of the transverse cylinder is provided with a sealing plug. The dry leak testing machine has the beneficial effects that a workpiece is fixed by the longitudinal cylinder; a through hole of a heat dissipation device is plugged and sealed by the transverse cylinder, and a large electronic device radiator is pressurized in a sealed mode so as to observe the air pressure situation of the airtight leak detector to determine whether the radiator is leaked. A test result is intuitive, accurate and efficient, and the quality of the electronic device radiator is greatly guaranteed.

The invention discloses a rice quality detection method. A computer and hyperspectral instrument equipment are prepared, and hyperspectral instrument equipment preheating and software installation arecarried out; a hyperspectral instrument collection system is subjected to calibration and parameter setting; rice to be detected is tiled on a movable collection platform; the hyperspectral instrument collects data; the collected data is preprocessed; and a rice hyperspectral image is subjected to characteristic selection, extraction and analysis. Compared with the prior art, the method disclosedby the invention has the following beneficial effects that the hyperspectral instrument is used for carrying out movable detection on the rice to be detected, the collected data is analyzed, rice quality can be quickly subjected to nondestructive testing, a detection result is instant, efficient, objective and accurate, the system of an existing detection is enriched, the healthy and ordered development of a rice market is further guaranteed, and the legitimate interest of consumers and the national food security are protected.

The invention relates to a monitoring system and an analyzing system based on image recognition and used for a steel rail longitudinal resistance experiment. The monitoring system comprises more thanone calibration plate, a camera I (for video recording), an image extraction system I (for extracting images in recorded video) and an image processing system I (for processing the images to acquire strain data), the camera I, the image extraction system I and the image processing system I are in sequential connection, and the calibration plates are fixed on the side face of a steel rail test piece rail web and positioned within a field of view range of the camera I; the analyzing system comprises the monitoring system and further comprises a strain collection system (for collecting stress data) and a data processing system in mutual connection, and the image processing system I is connected with the data processing system which is used for processing the strain data and the stress data and outputting analysis results. Monitoring of steel rail strain in the steel rail longitudinal resistance experiment can be realized by using an image processing method while data are analyzed, so thatthe monitoring system and the analyzing system are suitable for popularization and use.

The invention belongs to the field of detection of small molecular substances, in particular to a method for simultaneously detecting multiple aminoglycoside antibiotics. According to the method, a nitrocellulose membrane is utilized to solidify aminoglycoside antibiotic dox-ova, enzyme labeling is carried out on the aminoglycoside antibiotics, the aminoglycoside antibiotics is solidified on the membrane through specific binding of antigen-antibody, horse radish peroxidase or alkaline phosphatase reacts with a substrate to generate a product with a certain color, the product can exist stably for a long time, therefore, detection results can be directly read by naked eyes within 5-20 minutes; the rapid and simultaneous detection of multiple aminoglycoside antibiotics in a to-be-tested sample is achieved. Compared with a traditional immunoassay method, the method for simultaneously detecting the multiple aminoglycoside antibiotics has the advantages that the detection is efficient, the cost is low, and the time consumption is short; meanwhile, the detection results can be read by naked eyes, the method has convenience and practicability, is wider in application range, and is especially suitable for rapid screening of aminoglycoside antibiotics in liquid samples.

The invention discloses a method and system for sea-sky-line detection and navigation via an USV based on vision. The method comprises the following steps: extracting all the line segments in an imageby using a line segment detection algorithm, building a line segment pool, then with the morphological characteristics of a sea-sky-line as constraint conditions, filtering out non-sea-sky-line segments in the line segment pool so as to obtain candidate sea-sky-line segments; estimating optimal sea-sky-line results by using a least square method so as to obtain detection results of the candidatesea-sky-line segments; and based on the detection results of the candidate sea-sky-line segments, resolving the parameters of USV navigation on the basis of a photography model of the sea-sky-line. Thus, the method and system provided by the invention can effectively detect the sea-sky-line via the USV and accurately calculate the attitude navigation parameters of the USV.

The invention discloses an explosive molecular biosensor synthesized by utilizing a regulatory element as well as a preparation method and application of the explosive molecular biosensor. The explosive molecular biosensor comprises a report element of a self-luminous operon luxABCDE operon, a sensing element of a promoter nahR, RsrR regulatory protein and a tetH promoter regulated by the RsrR regulatory protein at the downstream, according to the explosive molecule biosensor, a signal of a nahR promoter for sensing explosive molecules is subjected to cascade amplification through the RsrR-PtetH regulation and control element, so that a self-luminous signal generated after sensing the explosive molecules is enhanced, and the detection sensitivity is improved; the method and the biosensor for sensing molecular signals of explosives by regulating the protein regulation element cascade amplification promoter are established, and the sensor is wide in detection range, high in sensitivity, simple and convenient in method, low in cost and high in safety, and can be applied to the fields of environmental protection, national safety maintenance and the like.

The invention discloses a method and system for sea-sky-line detection and navigation via an USV based on vision. The method comprises the following steps: extracting all the line segments in an imageby using a line segment detection algorithm, building a line segment pool, then with the morphological characteristics of a sea-sky-line as constraint conditions, filtering out non-sea-sky-line segments in the line segment pool so as to obtain candidate sea-sky-line segments; estimating optimal sea-sky-line results by using a least square method so as to obtain detection results of the candidatesea-sky-line segments; and based on the detection results of the candidate sea-sky-line segments, resolving the parameters of USV navigation on the basis of a photography model of the sea-sky-line. Thus, the method and system provided by the invention can effectively detect the sea-sky-line via the USV and accurately calculate the attitude navigation parameters of the USV.

The invention discloses a phase sequence testing method and device of a three-phase asynchronous motor of a nuclear power station.The device comprises a direct-current power supply and a detection unit, wherein a positive pole of the direct-current power supply is electrically connected with the external connecting end of a first phase stator winding, a negative pole of the direct-current power supply is electrically connected with the external connecting end of a second phase stator winding and the external connecting end of a third phase stator winding, and the detection unit is electrically connected with the external connecting end of the second phase stator winding or the third phase stator winding.The phase sequence testing device is used for testing a three-phase asynchronous motor rotor rotating in a magnetic field, the change trend of output current or potential of the external connecting end of the second phase stator winding or the third phase stator winding is measured, and a phase sequence of the three-phase asynchronous motor is judged according to a preset phase sequence judgment rule.The device is simple in structure and low in manufacturing cost and can be arranged in a large-scale mode, and the costs are further saved.The phase sequence of the three-phase asynchronous motor can be directly tested under the situation that the three-phase asynchronous motor is not connected with a three-phase alternating-current supply and is not energized, testing operations are simple and convenient, and testing results are accurate and efficient.

The invention relates to a method of quickly determining tocopherol content in cabbage type rape seeds by using a near infrared spectrum. The method specially comprises the following steps: collecting spectral data of a sample by using an infrared spectrometric analyzer as a correcting set; pre-processing the near infrared spectrum of the correcting set; associating the chemical value of the sample of the correcting set with the data of the near infrared spectrum to establish different calibrating equations and determining a correcting model; and performing external verification on the near infrared correcting model by using a verifying set. The method provided by the invention has the advantages that the tocopherol content in the cabbage type rape seeds can be quickly and efficiently determined without loss, and a convenient and effective method for breeding rape with high tocopherol is provided, so that the breeding process of a novel variety is extremely accelerated.

The invention discloses a blood optical-detection device and method. The blood optical-detection device comprises a light source, a miniature array optical-fiber column, a spectrometer, optical fibers, a data line and a data processing end, wherein the miniature array optical-fiber column consists of paired miniature optical-fiber needle columns; each miniature optical-fiber needle column is provided with a reflecting film and a light-transmitting film; the optical fibers are respectively adopted for connection between the miniature array optical-fiber column and the light source and between the miniature array optical-fiber column and the spectrometer, and the spectrometer is connected with the data processing end by the data line. The method using the device to detect blood comprises thefollowing steps that the light source emits light, the light enters the blood by one miniature optical-fiber needle column to generate a spectral Raman effect with components of the blood, and then outgoes by another miniature optical-fiber needle column, the spectrometer splits the outgoing light, and then converts light signals after light splitting into electric signals, and the data processing end carries out analysis and calculation on the electric signals by a mathematical model and obtains a detection result.

The invention discloses an apparatus and a method for detecting loosening of a carrying dolly chain lifting chain, the detection apparatus comprises a support, a pedestal is provided on the top of the support; a travel switch is provided on the end face of the pedestal; a tension wheel engaged with the lifting chain is provided at the lower part of the pedestal bottom, the tension wheel is arranged at the lower part of the pedestal through a tension wheel support; the one end of the tension wheel support is connected with the tension wheel, the other end of the tension wheel support is threaded out of the end face of the pedestal; a signal rod which is used for triggering the travel switch and is contacted with the travel switch is provided on one end threaded out of the tension wheel support; a compression spring is provided between one end of the tension wheel support which is connected to the tension wheel and the pedestal bottom; The detection method of the loosening of carrying dolly chain lifting chain is realized by using the apparatus for detecting the loosening of the carrying dolly chain lifting chain. The real time detection of an operation state of the carrying dolly lifting chain can ensure the stability, reliability and security of the production process.

The invention discloses a moisture tester. The moisture tester comprises a shell, an integrated main control board and a display, wherein the integrated main control board is electrically connected with the display. The moisture tester further comprises a shielding cover and supporting legs, wherein the shell comprises a front cover, a shell and an overhauling cover; the front end of the shell isconnected with the front cover; the display is arranged on the front cover; an overhauling opening is formed in the bottom of the shell; the overhauling cover is arranged in the overhauling opening; the lower end of the shell is connected with the supporting legs; a detection position is arranged at the upper end of the shell; the shielding cover is arranged above the detection position; the rearend of the shielding cover is hinged with the shell; and the front end of the shielding cover is of an opening structure. According to the moisture tester disclosed by the invention, a complicated link in traditional detection is saved and the detection only needs several seconds; the moisture tester has the advantages of energy source saving, time saving and labor saving, no pollution and high detection efficiency; and experiment data errors caused by problems including reagent dosage errors, calculation errors, operation and the like in the traditional detection are solved and a detection result is more accurate and efficient.

The invention discloses a KASP primer combination for constructing a DNA finger print library of grape and application of KASP primer combination and relates to the technical field of finger prints. The primer combination is obtained through picking 46 grape core SNP markers on the basis of combining a bioinformatics method and scientific algorithms such as mathematical statistics and carrying outdesigning, the DNA finger print library is constructed by using this SNP marker combination so as to carry out cluster analysis and variety identification on grape varieties, thus, the detection result can be more accurate and efficient; and 333 parts of germ plasm are effectively distinguished for the first time based on this primer marker combination and are the maximum population number with reference to grape identification at present. In addition, the KASP primer combination provided by the invention has the advantages that under the condition that DNA mass meets requirements of generalKASP reaction or conventional PCR, both the accuracy and resolution of detection on grape quality are very high, the detection efficiency is 10-20 times that of a SSR marker, the detection cost is equivalent to that of the SSR marker, and meanwhile, toxic chemical reagents such as acrylamide are not required to be used during detection.

The invention discloses a novel MR-1 gel bead for detecting explosive molecules as well as a preparation method and application of the novel MR-1 gel bead. The novel MR-1 gel bead is prepared by the following steps of amplifying and recombining a report element of a self-luminous operon luxABCDE operon and a sensing element of a promoter Pdnt-2, transfecting competent cells, and stirring with a sodium alginate-agar-polyacrylic acid solution and a calcium chloride solution until complete gelation. The novel MR-1 gel bead can sense explosive molecules 2, 4-dinitrotoluene (2, 4-DNT) with different concentrations and generate fluorescence with different intensities, the concentration of the explosive molecules can be obtained simply through the fluorescence intensity, and then real-time fluorescence detection of the explosive molecules is achieved. The novel MR-1 gel bead is simple in construction method, convenient to operate and store, high in safety and capable of prolonging the activity maintaining time of engineering strains and improving the safety and efficiency of explosive molecule detection.

The invention discloses an underground water content and water quality micro monitoring system. The system comprises a buoy shell, wherein a buoy cavity penetrating left and right is formed in the buoy shell, a telescopic cavity is formed in the upper side of an underground water channel, and a water taking pipe extending into the buoy cavity is slidably connected into the bottom wall of the telescopic cavity; a lower detection point is arranged above a water taking point of underground water, the water quality of each water level is detected in real time through wireless transmission, the labor consumption is reduced, the detection result is more efficient, and the water taking pipeline is washed to ensure that the water quality of the underground water during water taking is the current water quality, so detection is not influenced by the water taking pipeline, and moreover, the signal antenna for transmitting signals is protected, so the signal antenna cannot be damaged during lightning protection, and the lightning rod is taken back during signal transmission, so high efficiency and safety of signal transmission are ensured.

The invention provides a machine room intrusion detection method and device based on an AI algorithm, and relates to the technical field of safety detection, and the method comprises the following steps: obtaining the picture data of a machine room; performing edge detection on the picture data to generate an edge detection result of each cabinet in the machine room; wherein the edge detection result comprises a serial number of the cabinet, a rasterized coordinate and intrusion detection time; inputting the picture data into an intrusion detection model to obtain an intrusion detection result output by the intrusion detection model; wherein the intrusion detection result comprises whether intrusion exists, and the intrusion detection model is obtained based on sample image data training; and based on the edge detection result and the intrusion detection result, determining the cabinet in which abnormal intrusion occurs, and generating alarm information of the cabinet in which abnormal intrusion occurs. According to the invention, an efficient and accurate detection result can be formed, and the illegal operation condition of the cabinet can be comprehensively identified.

The invention relates to a self-regulation monitoring device and a self-regulation monitoring method based on meteorological condition monitoring. The self-regulation monitoring device and the self-regulation monitoring method based on the meteorological condition monitoring are characterized in that the self-regulation monitoring device based on the meteorological condition monitoring comprises a meteorological monitoring module, a main control module, a front-end equipment module and a network query module, wherein the main control module is connected with the meteorological monitoring module, the front-end equipment module and the network query module, and the network query module is connected with an authoritative meteorological institution. The self-regulation monitoring method based on the meteorological condition monitoring comprises the following steps: the meteorological monitoring module collects meteorological data and feeds back to the main control module, the main control module determines final meteorological conditions, the main control module determines the regulation scheme of theoretical parameters of the front-end equipment module, the main control module sends a control command to the front-end equipment module, and the front-end equipment module conducts function regulations and parameter regulations. According to the self-regulation monitoring device and the self-regulation monitoring method based on meteorological condition monitoring, a meteorological environment in which the front-end equipment module is located is compared with authoritative monitoring data, the self-regulation of equipment functions is conducted in real time and dynamically, the control is flexible and unmanned, and at the same time the display quality of monitoring is superior.

The invention provides a multifunctional secondary voltage and current comprehensive measurement and analysis device. A setting end of a CPU (Central Processing Unit) is connected with a man-machine conversation module; an alternating-current sampling module assembly is connected with a signal input end of the CPU through a DSP (Digital Signal Processor) data processing system; and a signal output end of the CPU is sequentially connected with a color display. According to the multifunctional secondary voltage and current comprehensive measurement and analysis device disclosed by the invention, the problem that a test result is influenced by different precisions and errors of different sampling equipment is greatly reduced, the problem that one test needs many people to cooperate simultaneously is solved, and the working efficiency of field experimental workers is improved, so that the multifunctional secondary voltage and current comprehensive measurement and analysis device has actual wide popularization values and meanings to electric power industries.

The invention discloses an Android application concurrent vulnerability detection system. The system comprises a concurrent vulnerability analysis module, an application plug-in mounting module and an application performance module. The concurrent vulnerability analysis module is used for analyzing potential concurrent vulnerabilities in an application and transmitting the potential concurrent vulnerabilities to the application instrumentation module. The application instrumentation module carries out instrumentation on a statement capable of changing thread scheduling at a position of suspected data race code according to a detection result of the concurrent vulnerability analysis module, carries out instrumentation on control code capable of blocking thread operation at the position of a background thread entrance method and carries out instrumentation on background service for obtaining application operation moment state information. The application performance module operates the instrumented application, generates paired suspected events and sends the events to the application, thereby triggering potential concurrent vulnerabilities. According to the system, the detection result is accurate and efficient, and a whole process is automated without extra participation of a user.

The invention discloses a micro-monitoring system for groundwater content and water quality, which comprises a buoy shell. The buoy shell is provided with buoy cavities penetrating left and right. The upper side of the underground waterway is provided with a telescopic cavity. Slidingly connected with a water intake pipe extending into the cavity of the buoy; the invention sets a detection point above the water intake point of the groundwater, and through wireless transmission, the water quality of each water level can be detected in real time, saving labor consumption and making detection The result is more efficient, and by cleaning the water intake pipeline, the groundwater at the time of water intake is guaranteed to be the current water quality, and will not be affected by the water intake pipeline for detection, and by protecting the signal antenna that transmits the signal, the signal antenna will not be in the air. Damage is caused during lightning protection, and the lightning rod is retracted during signal transmission, which ensures the efficiency and safety of signal transmission.