4150results about How to "The detection method is simple" patented technology

The invention provides a universal circuit breaker mechanical fault diagnosis method based on feature fusion of vibration and sound signals. The method includes steps of 1, collecting machine vibration signals and machine sound signals during an engaging and disengaging process of a universal circuit breaker; 2, adopting an improved wavelet packet threshold value denoising algorithm for denoising; 3, adopting a complementary total average empirical mode decomposition algorithm for extracting a plurality of solid mode function components reflecting state information of engagement and disengagement actions of the circuit breaker from the denoising signals; 4, determining the number Z of the solid mode function components; 5, calculating the energy ratio, the sample ratio and the power spectrum entropy as three types of features; 6, adopting a combination core principal component analysis method for performing dimension reduction on a feature sample with unified three types of features of the vibration and the sound signals and obtaining M principle components; 7, establishing a related vector machine based sequence binary tree multiple classifier model.

The present invention relates to a space form detection device of fine-long flexible bar and its detection method. Said device is composed of fine-long flexible bar, fiber-optic grating sensor array, fiber-optic grating modulator-demodulator, local area network router, data acquisition and data processing module and display equipment. The space form detection method of fine-long flexible bar includes the following steps: utilizing a group of grating array formed from four optical fibers arranged on the fine-long flexible bar, utilizing scale factor between the off-line labeled curvature and wavelength and utilizing fiber-optic grating modulator and demodulator to measure wavelengths of 20 raster points in five discrete points of fine-long flexible bar in the space so as to obtain the space curvature size and direction of discrete point position, then utilizing data processing module to reconstruct the form of said fine-long flexible bar in space. Said device can be used for making real-time tracking detection of human body cavity channel and fine-small vessel forms in the therapeutic process.

The invention provides a human mycoplasma pneumoniae gold-marked silver-stained immunochromatographic assay kit and a preparation method and application thereof. The assay kit comprises a detection card and a silver-stained sensitivity-enhanced pad, wherein the detection card is composed of a bottom plate, a sample pad, an absorbent pad, a conjugate pad and a detection layer; the conjugate pad is coated with a colloidal gold-marked polyclonal antibody mixture of colloidal gold marked rabbit anti-human mycoplasma pneumoniae P1 protein and P30 protein; the detection layer is composed of a solid phase nitrocellulose membrane with a detection line and a quality control line; the detection layer is bonded on the bottom plate, the conjugate pad and the absorbent pad are partially overlapped with the detection layer respectively and are bonded with the detection layer and the bottom plate respectively; the sample pad and the conjugate pad are partially overlapped to be bonded with the conjugate pad and the bottom plate respectively; and the silver-stained sensitivity-enhanced pad consists of a AgNO3 pad and a restoring pad. The human mycoplasma pneumoniae gold-marked silver-stained immunochromatographic assay kit can effectively improve the detection sensitivity of the human mycoplasma pneumoniae, has the strong specificity and has the high application value in the aspects of clinical diagnosis of human mycoplasma pneumoniae, etiology identification, epidemiological investigation and the like.

The invention provides an intrusion detection system (IDS) and a method based on IPv6 network environment. The system comprises a protocol set and rule base module, a data packet capture module, an IPV6 protocol analysis module, a protocol analysis and state tracking module, a rule analysis and packet detection module and a warning and logging module. The invention well solves the new problem of transplant of the IDS, brought about by the new IPv6 standards and characteristics, and improves the capture ability of the data packet, the detection means of the IDS and the safety detection abilityof the IDS.

A laser liquid-level measure of floater type consists of screen laser-logging, fixing device of said logging, floater, balance weight and laser distance measurer of reflection type.

The invention discloses synthesis methods of a tri-(4-triazolyl phenyl) amine and a tri-(4-triazolyl phenyl) amine cadmium complex, and relates to the field of luminescent materials. The synthesis method of the tri-(4-triazolyl phenyl) amine takes copper oxide as a catalyst and dimethylsulfoxide as a solvent, tri-(4-iodobenzene) amine and triazole react at the temperature of 120-170 DEG C, then the mixture is diluted by the solvent, filtered, decolored, separated and purified sequentially to obtain the tri-(4-triazolyl phenyl) amine; the synthesis method of the cadmium complex is carried out by mixing 5-aminoisophthalic acid, 3-(4-triazolyl phenyl) amine and cadmium acetate into a mixed solution of water and alcohol, then the mixture is uniformly stirred under the acid or neutral condition to obtain a reaction liquid, and the reaction liquid is put into a reaction kettle to crystalize and react to obtain the tri-(4-triazolyl phenyl) amine cadmium complex. The synthesis methods obtain the tri-(4-triazolyl phenyl) amine and the tri-(4-triazolyl phenyl) amine cadmium complex, whose crystal purities are more than 95% and whose yields are more than 85%, through the simple synthesis route.

The invention provides an integrated touch screen and a detecting method of the integrated touch screen. The integrated touch screen comprises an upper baseplate and a lower baseplate, wherein a touch electrode is formed on the upper baseplate; and the lower baseplate is arranged oppositely to the upper baseplate, grid electrode wires, a drive wire, an induction wire and touch pixels are formed on the lower baseplate, each touch pixel comprises a first transistor, a second transistor, a touch drive electrode and a touch induction electrode, the touch drive electrode and the touch induction electrode are arranged between the grid electrode wires, a first capacitor is formed by the touch drive electrode and the touch electrode, and a second capacitor is formed by the touch induction electrode and the touch electrode. The integrated touch screen has the advantages of higher signal-to-noise ratio and more accurate touch detection.

The invention provides a device and a method for detecting an alignment parameter of a photoetching machine, and relates to the field of semiconductor manufacture technologies. The detection device comprises a mask plate; the mask plate comprises a first alignment mark and a second alignment mark to determine the alignment parameter of the photoetching machine by matching a wafer; the wafer comprises a plurality of first cutting paths and a plurality of second cutting paths; the first cutting paths are parallel with one another and extend along a horizontal direction, and the second cutting paths are parallel with one another and vertical to the first cutting paths; the plurality of first cutting paths and the plurality of second cutting paths define a plurality of exposure regions; the first alignment mark and the second alignment mark are identical in shape and different in size; and after a wafer patterning technology, a wafer mark pattern laminated by the first alignment mark and the second alignment mark is formed between two adjacent exposure regions. The detection method and the detection device are simple, and high in production efficiency.

The invention provides a configuration-based intelligent substation communication network dynamic monitoring system and a monitoring method thereof. The monitoring system includes a network monitoring master station and at least one acquisition early warning terminal module which are connected through an Ethernet. The network monitoring master station is arranged at a station control layer to achieve state monitoring, anomaly alarm, anomaly early warning and management and maintenance of an intelligent substation communication network. Each acquisition early warning terminal module adopts the principle of local arrangement and abuts against network ports of a monitored network device for capturing, analyzing, determining and responding to packet information transmitted by the network ports. The technical scheme provided by the invention adopts a distributed manner to decompose the network acquisition data and data analysis, effectively solves the problems of huge amount of data acquisition of a conventional network monitoring analysis device and difficult data analysis, and achieves quick anomaly early warning and alarm of the network ports.

The invention provides an air conditioner filth blockage detecting method and device and a computer readable storage medium. The air conditioner filth blockage detecting method comprises the steps that an air conditioner is controlled to operate when a filth blockage detecting instruction is received, and under the situation that the current indoor temperature is not changed, the first time interval of reducing a preset temperature value of an indoor heat exchanger in the air conditioner is calculated; the current indoor temperature of the air conditioner is obtained, the standard time interval of reducing the preset temperature value of the indoor heat exchanger is determined according to the current indoor temperature in pre-stored data; and the first time interval is compared with the standard time interval, and whether filth blockage of the indoor heat exchanger occurs or not is judged according to a comparative result. According to the air conditioner filth blockage detecting method, by comparing the first time interval with the standard time interval, whether filth blockage of the indoor heat exchanger occurs or not is judged; and operation is simple, any cost does not need to be increased, and the technical problem that an existing air conditioner filth blockage detecting method is high in cost is solved.

The invention relates to a detection method, a detection device and a logic chip, wherein, the embodiment of the method comprises the following steps of detecting the isolation degree between an antenna to be detected and other antennas in the same sector, and determining that the antenna has connection errors if the isolation degree between the antenna to be detected and other antennas in the same sector exceeds a predefined threshold of isolation degree. Each embodiment of the invention uses a reverse power detection channel owned by existing equipments, thus saving hardware cost, and the embodiment detects the signal of other antennas in the same sector which is received by the reverse power detection channel, so as to directly determine whether the antenna has connection errors, thus effectively solving the problems that connection errors are easy to appear due to a plurality of sectors in existing techniques and the existing detection methods have large and complex workload and large construction difficulty after location, etc.

This invention uses browser to check Troy virus wed belonging to computer safety field, which realizes rapid and accurate checking on web Troy web through system process adjusting and memory change. This invention basic principle must generate one new process browser when checking hidden Troy virus through rapid checking on the web through system monitoring to solve the virus web to provide user with safe net environment.

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 provides a storage battery state detection device and a detection method of the storage battery state detection device. The storage battery state detection device comprises a storage battery, a power generation device connected with the storage battery in parallel and having a power generation current feedback function, and an electric load connected with the storage battery through a switch, and further comprises a power generation current detection device, a voltage detection device, a load detection device and a storage battery state determination device. The storage battery state detection device provided by the invention only needs to detect the output characteristics of a generator of a finished vehicle, the electric state of the finished vehicle and the voltage of the storage battery for determining the state of the storage battery, with no need for precise and direct detection of the current of the storage battery. In addition, the storage battery state detection device of the invention is simple in structure and easy to implement, and meanwhile can reduce the cost. The detection method of the storage battery state detection device provided by the invention determines the state of the storage battery according to the power generation current of the power generation device, the electric load current of the finished vehicle and the work voltage of the storage battery, and the detection method is simple and rapid.

The invention discloses a method for using an electronic nose to detect the freshness of chicken. The invention aims at providing a method which uses the electronic nose to detect the freshness of chicken, has the advantages of rapidity and simpleness, easy use and objective and reliable detection result, and can reduce the impact of storing conditions to the detection result. The method comprises the following steps: a chicken sample to be detected is put into a sealed container and then heated in water bath with thermostatic control; the heated chicken sample is put into a test room, and then smell sent by the sample is detected by a gas sensor array which consists of four gas sensors of different types; the data which is aquired by the gas sensor array is collected and processed; and then the freshness of chicken is judged according to the processing result of the data. The detection method uses an electronic nose which consists of four gas sensors of different types to detect the chicken sample, and has the advantages of objective, accurate, and fast detection result, good repeatability, simple analysis process and small using amount of sensors, and reduces the extraction of eigenvalues.

The invention discloses a method for detecting a reference signal controlled by a wind-powered electricity generation set in case of asymmetrical failure of an electric grid. The method separates a positive-sequence component and a negative-sequence component from the acquired three-phase asymmetrical voltage of a stator of a wind-driven generator by a'T/16 delay' separation method, and realizes rapid detection on the positive-sequence component amplitude, the phase and the frequency of fundamental voltage. The method can rapidly separate the positive-sequence component and the negative-sequence component from the voltage in the electric grid with failure, has the advantages of high detection accuracy and good real-time property, and provides basis for the operation control of the wind-powered electricity generation set under various circumstances of failures in the electric grid.

The invention relates to a method for detecting bisphenol A and bisphenol AF in food, belonging to technical field of analytical chemistry determination method. With ionic liquid (1-butyl-3-methylimidazole hexafluorophosphate) as an extractant and TritonX-100 or acetone as an dispersant, ultrasonic oscillation is carried out to form emulsion; after centrifugal separation, extraction drops at the lower layer are directly subjected to HPLC (high performance liquid chromatography) quantitative analysis. The method disclosed by the invention has the advantages of simpleness in detection steps, easiness in operation, low detection limit and high enrichment multiple, greatly reduced detection cost. The method disclosed by the invention is a rapid, efficient and environmentally friendly pre-treatment technology and has a wider application prospect in the field of food analysis.

The invention discloses a pressure cooker control method and device and a pressure cooker. The method includes the steps that in the process of controlling the pressure cooker to operate at initial heating power, whether internal temperature in a closed cooking inner cavity reaches the boiling point temperature or not is detected; when the internal temperature in the closed cooking inner cavity reaches the boiling point temperature, a timer in the pressure cooker is started up and starts to carrying out timing; when the timing time of the timer reaches preset time, the pressure cooker is controlled to operate at first heating power smaller than the initial heating power; in the process that the pressure cooker operates at the first heating power, whether liquid in the pressure cooker will overflow or not is determined by detecting whether the internal temperature or pressure in the closed cooking inner cavity reaches a preset value or not. The technical problems that as overflowing cannot be prevented in the prior art, the liquid in the cooker overflows to damage internal electrical apparatus circuits and then the cooker are solved.