37 results about "Signal Detection Analyses" patented technology

The invention is directed to apparatus and methods for delivering multiple reagents to, and monitoring, a plurality of analytical reactions carried out on a large-scale array of electronic sensors underminimal noise conditions. In one aspect, the invention provides method of improving signal-to-noise ratios of output signals from the electronic sensors sensing analytes or reaction byproducts by subtracting an average of output signals measured from neighboring sensors where analyte or reaction byproducts are absent. In other aspects, the invention provides an array of electronic sensors integrated with a microwell array for confining analytes and / or particles for analytical reactions and a method for identifying microwells containing analytes and / or particles by passing a sensor-active reagent over the array and correlating sensor response times to the presence or absence of analytes or particles. Such detection of analyte- or particle-containing microwells may be used as a step in additional noise reduction methods.

The invention is directed to apparatus and methods for delivering multiple reagents to, and monitoring, a plurality of analytical reactions carried out on a large-scale array of electronic sensors underminimal noise conditions. In one aspect, the invention provides method of improving signal-to-noise ratios of output signals from the electronic sensors sensing analytes or reaction byproducts by subtracting an average of output signals measured from neighboring sensors where analyte or reaction byproducts are absent. In other aspects, the invention provides an array of electronic sensors integrated with a microwell array for confining analytes and / or particles for analytical reactions and a method for identifying microwells containing analytes and / or particles by passing a sensor-active reagent over the array and correlating sensor response times to the presence or absence of analytes or particles. Such detection of analyte- or particle-containing microwells may be used as a step in additional noise reduction methods.

A method for analyzing a sample of wafers includes identifying F failure metrics applicable to at least one pattern on each wafer within the sample. Z spatial and / or reticle zones are identified on each wafer, where Z and F are integers. Values are provided for each failure metric, for each zone on each wafer. A point is defined for each respective wafer in an N-dimensional space, where N=F*Z, and each point has coordinates corresponding to values of the F failure metrics in each of the zones of the corresponding wafer. The sample of wafers is partitioned into a plurality of clusters, so that the wafers within each clusters are close to each other in the N-dimensional space. A plurality of clusters is thus identified from the sample of wafers so that within each individual cluster, the wafers have similar defects to each other.

The invention discloses a device for automatically detecting spool displacement of an electromagnetic valve with high precision and a method thereof. The device comprises a work platform, an electromagnetic valve fixing bracket, a sensor bracket, a stepping motor, a high-precision displacement sensor and a signal detection and analysis control instrument. The device is characterized in that a placed electromagnetic valve can be fixed automatically and a sensor probe can extend to a detection part through the moveable sensor bracket. The position of the sensor is controlled by the stepping motor, the spool displacement of the electrified electromagnetic valve is detected by the high-precision displacement sensor, and the signal detection and analysis control instrument outputs a result that a product is qualified or not. The detection process disclosed by the invention is carried out automatically, the efficiency is high, the detection is reliable and high, the time and the labor are saved and a guarantee for overall detection of electromagnetic valve products is provided.

The invention provides an aeroengine pipeline vibration testing device and an aeroengine pipeline vibration testing method. The aeroengine pipeline vibration testing device comprises a vibration excitation device, a pipeline clamping device and a vibration test analysis device, wherein the vibration excitation device is used for conducting vibrating excitation on an aeroengine pipeline; the pipeline clamping device is used for clamping the aeroengine pipeline and is connected with the vibration excitation device; and the vibration test analysis device is used for performing vibration signal detection analysis on the aeroengine pipeline during the vibration testing process. The aeroengine pipeline vibration testing device and the aeroengine pipeline vibration testing method realize the effect of simulating actual assembly condition of the engine pipeline, realizes the inherent frequency and dynamic stress tests of the pipeline under multi-order resonance excitation, and realize vibration stress monitoring and test analysis of key points of the pipeline under different assembly structures. The aeroengine pipeline vibration testing device and the aeroengine pipeline vibration testing method realize the multi-order resonance excitation of the engine pipeline in an integral assembly state by utilizing the vibration excitation device and the pipeline clamping device, realizes vibration response test and analysis of the aeroengine pipeline vibration under an adjustable assembly structure by utilizing the vibration test analysis device and an assembly position measuring device, and provide data support for optimizing pipeline assembly quality and verifying reasonability of piping assembly.

The invention relates to a method for detecting and analyzing acoustic emission signals and a multiband acoustic emission detector based on multiband and is suitable for the rock fragile materials. The multiband acoustic emission detector comprises a group of two or more than two sensors with different dominant frequencies; each sensor is connected with a signal amplifying device and a signal acquisition device; the signal acquisition device is connected with a computer; multiband selection of the acoustic emission detection is carried out on the frequency distribution characteristics of the acoustic emission signal released by the material according to the heterogeneity characteristic inhered in the rock fragile material; and the acquired signals with different frequent bands are analyzed to acquire the corresponding signal characteristics, thus improving the accuracy and the reliability of judging the unstable critical condition of the damaged materials.

The invention discloses a seal damping vibration attenuation device with a self-adaptive eccentricity adjustment function, and belongs to the field of vibration control. The seal damping vibration attenuation device with the self-adaptive eccentricity adjustment function comprises a signal detection analysis and control system and an execution system. An active closed-loop control mode is adopted, the radial position of a sealing stator can be adjusted in a self-adaptive mode according to the eccentric magnitude, the rotation speed, the vibration energy and other states of a rotor system, eccentricity of a rotor is reduced, and accordingly sealing excitation force is reduced; and meanwhile, timely and proper damping force is provided to act on the sealing stator, unstable energy of fluid in a sealing gap is dissipated, the action of sealing self-excited force on the rotor is reduced, and accordingly active vibration control over a rotor sealing system is achieved. The seal damping vibration attenuation device with the self-adaptive eccentricity adjustment function can effectively reduce eccentricity caused by different reasons and dissipate the sealing excitation energy generated under different working conditions, vibration control over the rotor sealing system under variable working conditions is achieved, excitation of sealing fluid is restrained, and stability of the rotor is improved.

The invention relates to a mixing ventilation and gas-exchanging device, which consists of an inlet air part, a signal detection analysis and conversion processing part, an exhaust air part, a transmission part and a receiving and execution part. The inlet air part is an air inlet; the signal detection analysis and conversion processing part consists of a detector and a processor; the transmission part is a wireless transmission device; the receiving and execution part consists of a wireless terminal, a frequency conversion controller and an exhaust fan; the exhaust air part consists of an air outlet and an exhaust fan; an output end of a probe is connected with the processor, and an output end of the processor is connected with the wireless transmission device which is connected with the wireless terminal through wireless signals; the wireless terminal and the frequency conversion controller are connected, and the frequency conversion controller is connected with the exhaust fan. By detecting the thickness and the humidity of indoor carbon dioxide, and utilizing the wireless transmission to control the operation condition of the exhaust fan, the device realizes mutual conversion of natural ventilation and mechanical ventilation, thus meeting such requirements as energy conservation, improvement of air quality and thermal comfort condition, reduction of transport cost of air conditioner as well as prolonging service life of facilities etc.

The invention relates to a real-time controllable derotation flow vibration damper of a seal system in an impeller machine which is mainly used for reducing the vibration of a rotor seal system or vanes, and is mainly applied to the industrial rotating machines like a compressor, a steam turbine, a gas turbine, a turbopump, and the like. The real-time controllable derotation flow vibration damper of a seal system in an impeller machine comprises a real-time signal detecting and analyzing system, as well as an actuating system; the invention is characterized in that the real-time signal detecting and analyzing system comprises an eddy-current displacement sensor, a pressure sensor, a connection terminal, a signal modulating module, a data collection card and a computer; the actuating system of the controllable derotation flow vibration damper comprises an air pump, a storage tank, an electric adjusting valve / electromagnetic adjusting valve, a multi-way joint, a pipeline and a nozzle. Compared with the existing derotation flow technology, the device carries out adjusting and controlling by continuously detecting the changes of the parameters like the vibration size, the medium pressure and flux of the system in real time, has a good vibration damping effect, can not affect the running efficiency of a machine unit, and more importantly, can not cause the vibration of the machine unit.

The invention discloses a method for implementing a voice integrated circuit. A noise reduction unit is arranged between a digital-analog conversion unit and a speaker power operator; a main channel of the noise reduction unit is a variable band pass switching capacity filter; a secondary channel of the noise reduction unit is a signal analysis control unit; input ends of the main channel and the secondary channel are connected with an output end of the digital-analog conversion unit respectively; the output end of the main channel is connected with the speaker power amplifier; and the output end of the secondary channel is connected with a control signal input end of the main channel to adjust the bandwidth of the main channel. The method comprises the steps of: performing high-pass filtering on a voice signal which is subjected to analog-to-digital conversion by the secondary channel through the high pass filter; performing analog-digital conversion on the filtered voice signal by using an A / D converter; inputting the signal to a central processing unit; performing peaking operation and average calculating operation on the voice signal which is subjected to analog-to-digital conversion in the central processing unit; controlling the output frequency of a controllable clock source by using the operation result; and controlling the bandwidth of the variable band pass switching capacity filter by the controllable clock source.

The invention discloses an electromagnetic-wave two-way-transmission rotary guiding system. The electromagnetic-wave two-way-transmission rotary guiding system comprises a ground control system and an underground control system. The ground control system comprises a computer control system, an electromagnetic wave pulse excitation device and an electromagnetic wave signal receiving and analyzing device, wherein the electromagnetic wave pulse excitation device and the electromagnetic wave signal receiving and analyzing device are connected with the computer control system. The underground control system comprises a tool control and data processing system, an electromagnetic wave signal detecting, analyzing and transmitting device, a fixed point static data measuring device and a rotary guiding motion control mechanism, wherein the electromagnetic wave signal detecting, analyzing and transmitting device, the fixed point static data measuring device and the rotary guiding motion control mechanism are connected with the tool control and data processing system. The ground control system is in communication with the electromagnetic wave signal detecting, analyzing and transmitting device of the underground control system through the electromagnetic wave pulse excitation device and the electromagnetic wave signal receiving and analyzing device. According to the electromagnetic-wave two-way-transmission rotary guiding system, the two-way electromagnetic wave transmitting technology is combined with the rotary guiding motion mechanism, an electromagnetic wave signal source is positioned through electromagnetic waves, guiding drilling is carried out on continuous points, and while-drilling measured data collecting and automatic guiding drilling are achieved.

The invention provides an intelligent health analysis system for traditional Chinese medicine based on cloud computing and a mobile platform. The intelligent health analysis system is characterized inthat a portable automatic inflation pulse pressure-intensity measuring annular wristband terminal is adopted as an intelligent pressure-intensity pulse-diagnosis wristband terminal to collect pulse condition data of a user; an intelligent health analysis device of the traditional Chinese medicine based on the mobile platform receives the pulse condition data, a face image, a tongue image and a sound signal sent out by the user, and the pulse condition data, the face image, the tongue image and the sound signal are sent to a cloud server system based on cloud computing and big data; and the cloud server system based on cloud computing and the big data is used for analysis, audio and video data are analyzed through an intelligent neural network technology, and obtained analysis results serve as examination data to be recorded into a health database of the user and meanwhile fed back to the intelligent health analysis device for the traditional Chinese medicine based on the mobile platform. The mobile Internet and a modern signal detection and analysis method are adopted for comprehensive processing and analyzing to realize syndrome differentiation and comprehensive consideration.

The invention, which belongs to the technical field of fuel cells, discloses a fuel cell impedance measurement and analysis system and method based on key frequency points. The system is characterizedin that a signal generation unit is used for enabling a sinusoidal signal generator to generate three key sinusoidal signals with different frequencies according to a detection sequence; a signal acquisition unit is used for collecting a stack voltage, a stack current and a monomer voltage; the input terminal of a signal detection and analysis unit is used for receiving the collected stack voltage, stack current and monomer voltage to calculate the impedance of a fuel cell stack and the impedance of a single fuel cell; a control unit is used for determining the internal state of the fuel cellaccording to output of the signal detection analysis unit. The internal state of the fuel cell is determined according to the impedance of the output key frequency point of the signal detection and analysis unit, and the real-time state of the fuel cell can be diagnosed by analyzing the signal of the key frequency. Compared with the traditional method, the disclosed method has the advantages of being higher in analysis rate and more complete in state information.

A Raman signal detection and analyzing system and a method thereof are disclosed. The Raman signal is generated by emitting an excitation light to a sample. The Raman signal is then modulated by passing through a plurality of optical filter and modulator. The resulting modulated Raman signal comprises two orthogonal components, which intensities are to be computed based on the first harmonic of said modulated Raman signal. The content of a specific analyte within the sample can then be determined based on the ratio of the intensities of the two components.

The invention provides a no-injury blood glucose detector based on blood raman scattering of the blood vessels of the eyes and a detection method. The no-injury blood glucose detector comprises a module for seeking the blood vessels, a laser focus projection module and a signal detecting and analyzing module, wherein the module for seeking the blood vessels, the laser focus projection module and the signal detecting and analyzing module are sequentially connected. The module for seeking the blood vessels is used for seeking and selecting the blood vessels on the surfaces of the conjunctivae or the sclera and locating coordinates of the blood vessels. The laser focus projection module is used for projecting the laser focus to the blood in the selected blood vessels according to the located coordinates of the blood vessels. The signal detecting and analyzing module is used for collecting scattered light generated by the blood in the blood vessels selected by laser radiation, analyzing the blood glucose level according to the raman scattering spectrum analysis of the detected scattered light, and displaying the blood glucose level. The no-injury blood glucose detector based on blood raman scattering of the blood vessels of the eyes and the detection method have following beneficial effects: the blood does not need to be sampled from a patient; consumable items like test paper are not needed either; and the blood glucose can be directly detected and displayed automatically, intelligently and fast in real time under the circumstance of not injuring the human body; and moreover, detecting can be repeatedly carried out many times according to needs, which is beneficial for monitoring the blood glucose.

A Raman signal detection and analyzing system and a method thereof are disclosed. The Raman signal is generated by emitting an excitation light to a sample. The Raman signal is then modulated by passing through a plurality of optical filter and modulator. The resulting modulated Raman signal comprises two orthogonal components, which intensities are to be computed based on the first harmonic of said modulated Raman signal. The content of a specific analyte within the sample can then be determined based on the ratio of the intensities of the two components.

The invention discloses a blood coagulation routine test constant-speed test method, which comprises the following steps of: configuring a set of photoelectric signal detection analysis and data transmission device and a constant-temperature device for each test cup, detecting an item for each test cup, placing a plurality of test cups on an electrified assembly line, and driving the test cups tomove and supplying power to the test cups by the electrified assembly line; the electrified assembly line drives the test cups to move for a certain distance at a fixed time interval, and the next test cup reaches the position where the previous test cup is suspended every time the test cups move; when the test cup is suspended, the detection instrument adds a blood sample into the test cup at a fixed position, then a constant temperature device of the test cup is started, and the blood sample in the test cup is pre-heated for 120 s; after 120 s of pre-heating is completed, a detection instrument adds a detection reagent into the test cup at a fixed position, and the test cup starts to detect the blood sample and uploads a detection result to the instrument; and after the detection is completed, the detection instrument cleans the test cup at a fixed position.

An integrated sensing device is capable of detecting analytes using electrochemical (EC) and electrical (E) signals. The device introduces synergetic new capabilities and enhances the sensitivity and selectivity for real-time detection of an analyte in complex matrices, including the presence of high concentration of interferences in liquids and in gas phases.

The invention discloses a device for automatically detecting spool displacement of an electromagnetic valve with high precision and a method thereof. The device comprises a work platform, an electromagnetic valve fixing bracket, a sensor bracket, a stepping motor, a high-precision displacement sensor and a signal detection and analysis control instrument. The device is characterized in that a placed electromagnetic valve can be fixed automatically and a sensor probe can extend to a detection part through the moveable sensor bracket. The position of the sensor is controlled by the stepping motor, the spool displacement of the electrified electromagnetic valve is detected by the high-precision displacement sensor, and the signal detection and analysis control instrument outputs a result that a product is qualified or not. The detection process disclosed by the invention is carried out automatically, the efficiency is high, the detection is reliable and high, the time and the labor are saved and a guarantee for overall detection of electromagnetic valve products is provided.

The invention discloses a horizontal moving type closed container vacuum degree detection system. The system comprises a workbench, wherein an object stage capable of horizontally moving is arranged in the middle of the workbench, and at least one pair of parallel electrodes is arranged on the two sides of the object stage; the electrodes have a high-frequency electric field applied to the surfaceso as to induce glow discharge in a to-be-detected closed container; a signal detection analyzer is further arranged on the workbench, the signal detector can capture a glow discharge signal generated by moving the to-be-detected closed container between the electrodes. The closed container is moved on the horizontally-moving object stage, glow discharge is generated when the closed container moves between the electrodes, the signal detection analyzer analyzes the vacuum degree of the container, and the vacuum degree is recorded in the system so that the vacuum degree of the closed containerof an assembly line can be detected.

The invention provides a no-injury blood glucose detector based on blood raman scattering of the blood vessels of the eyes and a detection method. The no-injury blood glucose detector comprises a module for seeking the blood vessels, a laser focus projection module and a signal detecting and analyzing module, wherein the module for seeking the blood vessels, the laser focus projection module and the signal detecting and analyzing module are sequentially connected. The module for seeking the blood vessels is used for seeking and selecting the blood vessels on the surfaces of the conjunctivae or the sclera and locating coordinates of the blood vessels. The laser focus projection module is used for projecting the laser focus to the blood in the selected blood vessels according to the located coordinates of the blood vessels. The signal detecting and analyzing module is used for collecting scattered light generated by the blood in the blood vessels selected by laser radiation, analyzing the blood glucose level according to the raman scattering spectrum analysis of the detected scattered light, and displaying the blood glucose level. The no-injury blood glucose detector based on blood raman scattering of the blood vessels of the eyes and the detection method have following beneficial effects: the blood does not need to be sampled from a patient; consumable items like test paper are not needed either; and the blood glucose can be directly detected and displayed automatically, intelligently and fast in real time under the circumstance of not injuring the human body; and moreover, detecting can be repeatedly carried out many times according to needs, which is beneficial for monitoring the blood glucose.

An automobile test field differential positioning base station signal inspection system comprises: a signal detection analysis module used for scanning a differential positioning base station signal frequency band and analyzing the differential positioning base station signal frequency band; a mode conversion module which is used for converting a signal mode between the frequency band scanning module and the control module; a signal conversion module which is connected with the frequency band scanning module; a control module which is used for sending a control instruction to the frequency band scanning module, wherein the control module is connected with the signal conversion module; a display module which is used for displaying an analysis result of the signal detection analysis module, wherein the display module is connected with the control module. According to the application, all channels for 433MHz communication in the current test range can be obtained according to the scanning result, and the differential positioning base station data transfer radio station can be set in an idle channel according to the prompt; and according to the invention, the currently used channel can be effectively avoided, thereby ensuring that the differential positioning signals are not disturbed, and further ensuring the reliability of a test item.

The invention discloses a split-type 3D laryngoscope video signal control system, relates to the technical field of video signal control, solves the technical problem that the video signal of the laryngoscope cannot be stably controlled in the prior art, and performs signal detection and analysis during the operation of the laryngoscope , so that the anti-interference analysis of the laryngoscope signal is carried out, and the monitoring of the real-time signal is conducive to improving the control accuracy of the video signal. Monitoring is performed when the signal needs to be controlled, which reduces the monitoring frequency of good signals and thus reduces the monitoring of video signals. Cost; analyze the real-time transmitted video of the laryngoscope during operation, monitor the transmitted video of the laryngoscope according to the real-time transmitted video analysis, and indirectly monitor the operating quality of the laryngoscope to ensure the accuracy of laryngoscope detection; The efficiency analysis of the real-time running laryngoscope is carried out, so as to monitor each operation of the laryngoscope, thereby improving the operating efficiency of the laryngoscope, and improving the accuracy of the laryngoscope's observation and detection.

To prevent operation of an analysis system from being stopped every time an error occurs in an analysis device of a monitoring system. A monitoring system includes an analysis device provided with a plurality of sensors, an error detector configured to detect occurrence of an error in the analysis device based on an output signal of a plurality of the sensors, and to identify a type of the detected error, an information storage part storing levels set in advance for each of a plurality of types of errors that may occur in the analysis device, and an error level identification part configured to identify a level of an error detected by the error detector based on information stored in the information storage part Where an error occurs in the analysis device, a measure according to the level of the error identified is executed in the analysis device.

The invention discloses a split type 3D laryngoscope video signal control system, relates to the technical field of video signal control, and solves the technical problem that a laryngoscope video signal cannot be stably controlled in the prior art. Signal detection and analysis are performed in the operation process of a laryngoscope so as to perform anti-interference analysis on a laryngoscope signal. Monitoring of real-time signals is beneficial for improving the control accuracy of video signals, monitoring is performed when the signals need to be managed and controlled, the monitoring frequency of good signals is reduced, and therefore, the monitoring cost of the video signals is reduced. According to the system, videos transmitted in real time in the operation process of the laryngoscope are analyzed, the videos transmitted by the laryngoscope are monitored according to the analysis of the videos transmitted in real time, the operation quality of the laryngoscope is indirectly monitored, and the detection accuracy of the laryngoscope is ensured; and the laryngoscope operating in real time is subjected to efficiency analysis, so that each operation of the laryngoscope is monitored, the operation efficiency of the laryngoscope is improved, and the observation and detection accuracy of the laryngoscope is improved.

The invention relates to an automatic-purging accurate-statistics ammonia removal maintenance system for an electrolytic electroplating plant. A wind parameter maintenance system having a regular automatic purging function, reliable performances and a blast capacity accurate-statistics function realizes regular purging of a wind parameter measurement tube through integrated installation and signal transmission modules so that accurate measurement of wind parameters at any time is guaranteed. A timing relay accurately controls purging frequency so that stable purging is guaranteed and system reliability is improved. A second solenoid valve realizes isolation protection of a pressure transmitter and a GPRS signal transmission module so that system stability is improved. A signal amplifier circuit mainly comprising a first operational amplifier carries out filtering and amplification on a sampled signal so that signal sampling reliability is improved and thus system operation accuracy and reliability are improved. A biasing circuit mainly comprising a second operational amplifier carries out signal bias so that later sampling chip reliability to signal detection and analysis is guaranteed and accurate detection and analysis of the signals are improved. A device material is reinforced polypropylene RPP and is used for improving device corrosion resistance and reducing ammonium sulfate crystals on the device.

The invention provides a reset method, device and apparatus for starting timeout of a single board and a readable storage medium, and the method comprises the steps: obtaining a time threshold value and first input information which comprises confirmation information that the single board is powered on and started, wherein the first input information is used for triggering a programmable logic device on the single board to carry out hard disk action signal detection on a hard disk on the single board; analyzing whether a programmable logic device detects the hard disk action signal within the time threshold value or not, acquiring an analysis result, wherein the analysis result is used for triggering a reset device to conduct reset operation on a processor in the single board. According to the invention, the programmable logic device is added to monitor the SATAACT signal state of the hard disk of the single board, so that the problem that the single board is hung and cannot be automatically reset in the starting process is solved.

The invention discloses a seal damping vibration attenuation device with a self-adaptive eccentricity adjustment function, and belongs to the field of vibration control. The seal damping vibration attenuation device with the self-adaptive eccentricity adjustment function comprises a signal detection analysis and control system and an execution system. An active closed-loop control mode is adopted, the radial position of a sealing stator can be adjusted in a self-adaptive mode according to the eccentric magnitude, the rotation speed, the vibration energy and other states of a rotor system, eccentricity of a rotor is reduced, and accordingly sealing excitation force is reduced; and meanwhile, timely and proper damping force is provided to act on the sealing stator, unstable energy of fluid in a sealing gap is dissipated, the action of sealing self-excited force on the rotor is reduced, and accordingly active vibration control over a rotor sealing system is achieved. The seal damping vibration attenuation device with the self-adaptive eccentricity adjustment function can effectively reduce eccentricity caused by different reasons and dissipate the sealing excitation energy generated under different working conditions, vibration control over the rotor sealing system under variable working conditions is achieved, excitation of sealing fluid is restrained, and stability of the rotor is improved.