205results about How to "Realize continuous detection" patented technology

The invention relates to a driver fatigue detection system and belongs to the technical field of detection equipment. The driver fatigue detection system comprises a CCD (charge coupled device) camera connected with a DSP (digital signal processor) through a video input decoder, and detection images are subjected to mode identification and processing. An infrared light source of the CCD camera is composed of two groups of infrared diodes, and the infrared diodes are uniformly distributed on a same ring of the same plane and same axis and are optionally switched. The infrared diodes emit infrared light of 850nm and 950nm in wavelength. The driver fatigue detection system is characterized in that judgment of lip syncing is added on the basis of human eye area judgment, so that probability of judgment missing or mistakes is decreased. By a method for differentiating odd-even frames of the images, positions and characteristics of eyes and lips can be accurately detected, and fatigue degree of a driver can be accurately detected. By the aid of a Kalman filter and a Mean-shift algorithm, the positions and the characteristics of the eyes and the lips are continuously detected; by a short-time tracking strategy, the eyes and the lips are tracked, and prediction is realized.

The invention discloses an online monitoring system for intermediate volatile organic compounds (IVOCs) and an online monitoring method for monitoring the concentration of IVOCs in atmosphere by adopting the online monitoring system. The online monitoring system comprises a sample feeding device, a sample loading and sampling device and a detection device. The device can realize the continuous detection on IVOCs in atmosphere. The monitoring method is realized on the basis of the online monitoring system. The monitoring method comprises the following steps: (1) mixing to-be-detected gases and (2) continuously feeding samples, sampling and detecting the gas mixture. The online monitoring system is small-size, simple in operation and low in cost. The variation tendency of IVOCs in the atmosphere can be known through the detection of the online monitoring system.

The invention discloses a gated complementary type photon counting system, which comprises a clock circuit module, an active quenching detection module, a register module and a processing module. Theclock circuit module comprises a frequency-locked loop circuit and a non-overlapping clock generation module. The active quenching detection module comprises a plurality of detection units. Each detection unit comprises an APD detector, an active quenching circuit and a counter. The detection units are arrayed in order. The detection units in odd locations and the detection units in even locationsform two detection arrays respectively. The complementary type photon counting system is applied to the high-speed single photon counting imaging field, and can effectively suppress unfavorable influence of afterpulse effect, dark counting and crosstalk between the detection units on detection rate, thereby improving photon counting detection rate and accuracy.

The invention discloses a full-automatic concentration measurement device based on surface plasmon resonance technology, which is composed of a liquid processing system, a SPR sensor, a signal detection and controller and a computer. The liquid processing system comprises a sample cell, a multiposition valve, a micro-flow cell, an injection pump, a waste liquid tank and a pump valve controller. The SPR sensor is a miniature non-scanning integrated SPR sensor; the signal detection and controller comprises a control chip C8051F020, a sensor control circuit, a signal processing circuit, an RS232 serial interface and a USB interface circuit and is used for controlling the SPR sensor, receiving SPR light intensity distribution signals of the sensor and transmitting the signals to a computer after simple processing and also for transmitting instructions between the computer and the pump valve controller; and the computer is used for transmitting various control or measurement instructions to the signal detection and controller and calculating the refractive index of a sample by analyzing the SPR light intensity distribution signals, thus obtaining the concentration of the sample to be detected according to a constructed model concerning the sample concentration and the difference in refractive index between the sample and a buffer solution. The invention has the advantages of high generality, high measurement accuracy, less samples, high automation degree, small size and low cost.

The invention discloses a coal mass strength distribution characteristic continuous detecting method and device. The method includes the steps of connecting a short-circuit test element for detecting the torque, drilling pressure and drilling depth of a real-time detection drill bit between the drill bit and a drill stem, recording and storing the detected torque, drilling pressure and time signals of the drill bit through the short-circuit test element, converting the torque, drilling pressure and time signals into vibration signals or electromagnetic signals, transmitting the vibration signals or electromagnetic signals to a signal receiver, conducting analysis through a signal processor to obtain a depth-torque curve and a depth-drilling pressure curve, and conducting comprehensive comparing and analyzing on the real-time curves and information stored in the short-circuit test element to obtain coal mass strength distribution characteristics. By means of the method and device, the current situations that underground coal mine coal mass strength testing complexity is high, advanced detection is difficult, and test results can hardly meet prediction requirements are broken through, the coal mass strength distribution characteristic continuous detection in the drilling process is achieved through drilling information, and the method is easy and convenient to implement, scientific in test principle, accurate in result, intelligent, efficient, advanced and practical and has great application prospects in the technical field of mine dynamic disaster forecasting and early warning.

The invention discloses a rolling type motion sensor device and a using method thereof. A sensor (1) is fixedly mounted on the wheel axle (4) of a rolling wheel (2), points to the coupling direction, and moves on a medium surface together with the rolling wheel (2); and the sensor is indirectly coupled with the medium surface, on which the sensor (1) moves, through a wheel axle surface (3), so that a seismic signal can be transmitted to the sensor mounted and coupled onto the wheel axle (4). A seismic source (13) and the rolling wheel (2) continues moving forward at the same time; a seismic signal collecting instrument (7) is used for completing the sequent collection of the seismic exploration records of the medium surface; the sequentially-collected seismic exploration records form a seismic arrangement; and the seismic arrangement is used for exploring and recognizing the potential hazards (12) below the rolling medium surface. The sensor maintains the sensor mounting and coupling direction during moving, realizes sequent collection of the seismic signals during rolling forward, is a key component suitable for continuous detections for potential hazards (12) of a roadbed or concrete structure quality.

The invention discloses an electromagnetic ultrasonic probe for detecting an ultrahigh-temperature casting and forging piece and an online rapid detection method. The electromagnetic ultrasonic probecomprises a probe shell, a permanent magnet group arranged in a cavity of the probe shell, a corundum sheet arranged in a hollow area at the bottom of the probe shell, an exciting/receiving coil arranged above the corundum sheet, a hollow pipe sequentially penetrating through the probe shell, the permanent magnet group, the exciting/receiving coil and the corundum sheet, the plurality of water inlets and the plurality of water outlets communicated with the cavity of the probe shell, and a circulating cooling channel formed by a cavity between the probe shell and the permanent magnet group, theexciting/receiving coil and the hollow pipe. Continuous detection of the 1200 DEG C ultra-high temperature casting and forging piece can be realized, and the problems of weak ultrasonic echo, low signal-to-noise ratio and low spatial resolution caused by thick dendrites of a continuous casting billet and high attenuation of a solid-liquid interface in the 1200 DEG C ultra-high temperature castingand forging thickness detection process of an existing electromagnetic ultrasonic probe are solved.

The invention provides a mining-method tunnel excavation and first support quality detection method. The method comprises the following steps: 1) determining an optimum precision point and laser scanner laser beam maximum incidence angle; 2) determining distance between measuring stations and the total number of measuring stations of a laser scanner; 3) obtaining tunnel first support surface pointcloud data, wherein the point cloud data refers to a three-dimensional coordinate of a first support surface point of the tunnel under a coordinate system of a tunnel monitoring reference point; 4) determining tunnel section mileage according to the tunnel section inspection requirements in the construction site; 5) projecting the extracted three-dimensional point coordinate onto a tunnel sectionto be detected; 6) determining data points for fitting and carrying out fitting to construct a curve, wherein the curve is the actual boundary obtained through tunnel section excavation; and 7) determining tunnel section overbreak and underbreak amount and position. The method realizes automatic, high-precision and continuous detection of mining-method tunnel first support quality.

The invention relates to the field of automatic water level detection, in particular to a device and a method for detecting water level. The device is characterized in that a capacitor probe is arranged in a to-be-detected container, and the capacitor probe and ground are arranged into a detection capacitor; a medium of the capacitor consists of air and/or to-be-detected liquid; a real-time capacitance value of the detection capacitor is obtained by detecting capacitor charging time of an RC circuit comprising the detection capacitor, so as to further obtain a water level value of the to-be-detected liquid. The detection device has the advantages that the structure is simple, any water level can be continuously detected, and the detection accuracy is very high.

The invention discloses a flow detection reagent for human anti-Mullerian hormone, a preparation method of the flow detection reagent and application. The reagent is characterized by comprising an antibody Ab1-microsphere conjugate used for detecting the content of anti-Mullerian hormone in human serum or blood, and an antibody Ab2-fluorescent molecular marker. The preparation method comprises the following steps: preparing and pairing human anti-Mullerian hormone monoclonal antibodies, coupling between the human anti-Mullerian hormone monoclonal antibodies and carrier microspheres, and fluorescent molecular marking of the monoclonal antibodies. The flow detection reagent has the advantages that the content of AMH is directly judged according to fluorescence values, an experimental result can be obtained only by adding a blood sample into the reagent, the experimental operation steps during detection are simplified, moreover, high-throughput and multi-sample continuous detection can be realized through an automatic sample adding system, the detection efficiency is greatly improved, and the detection sensitivity can reach 0.01ng/ml.

The invention belongs to the field of road engineering material detection equipment, and relates to an aggregate morphological characteristic detection system and method based on 3D point cloud data.The system comprises an acquisition mechanism, a processing mechanism and a display unit. The display unit is used for displaying and inputting the acquisition parameters of a set aggregate, the acquisition mechanism is used for placing the aggregate, acquiring the 3D point cloud coordinate information of the aggregate and transmitting the acquired 3D point cloud coordinate information to the processing mechanism, and the processing mechanism is used for receiving the 3D point cloud coordinate information transmitted by the acquisition mechanism and the acquisition parameters inputted by the display unit, extracting and calculating the morphological characteristic parameters of the aggregate from the 3D point cloud coordinate information, carrying out index evaluation on the morphologicalcharacteristic parameters according to the acquisition parameters, and displaying the morphological characteristic parameters through the display unit. The system and the method of the present invention can carry out 3D detection on each aggregate, are not influenced by the light, are stable in test result and high in precision, can carry out the batch detection, can evaluate and optimize the aggregate quality rapidly, and can control the construction quality effectively.

A railway steel rail center detection vehicle comprises a walking trolley and a prism measuring device. The walking trolley comprises a frame and a hand push rod, a nylon wheel is arranged at the bottom of one end of the frame and arranged on the left steel rail, and a steel groove wheel is arranged at the bottom of the other end of the frame and clamped on the right steel rail; the prism measuring device comprises a prism, a prism bar and a knuckle bearing seat, a mounting hole is formed in the middle of the knuckle bearing seat, a knuckle bearing is arranged in the mounting hole, limiting holes are formed in the two side faces of the knuckle bearing seat, bolts are arranged in the limiting holes and abut against the knuckle bearing, and the knuckle bearing seat is connected with the frame. One end of the prism bar is connected with the prism, the center of the prism coincides with the center of the right steel rail, the other end of the prism bar is in threaded connection with one end of a prism bar connector, the other end of the prism bar connector is inserted into the knuckle bearing, and a universal support is connected between the prism bar and the frame. The railway steel rail center detection vehicle has the advantages of high measurement precision, high working efficiency and low cost.

The invention discloses a system for detecting the paving temperature segregation of an asphalt pavement. The system comprises a temperature sensor group which is arranged on paving equipment and is 10-15cm from the pavement, a distance collection device used for collecting a paving distance and a paving speed, a processing device which is used for receiving temperature information of the pavement collected by the temperature sensor group, receiving paving distance information and paving speed information collected by the distance collection device and performing analysis processing, a display device which is used for displaying analysis processing results for the temperature information, the paving distance information and the paving speed information from the processing device, and a storage device which is used for soring the temperature information, the paving distance information and the paving speed information. The invention further discloses a method for detecting the paving temperature segregation of an asphalt pavement. By adopting the system and the method for detecting the paving temperature segregation of an asphalt pavement, the temperature segregation detection results are accurate.

The invention relates to an aluminum electrolysis feeding process, in particular to a precise feeding technological method for aluminum electrolytic bath alumina dense-phase conveying system, which comprises the following steps: real-time level detection; calculation of adding amount of alumina; adjustment of fluoride salt proportion amount; feeding of series electrolytic bath bin. The aluminum electrolysis feeding process has the advantages of continuous level detection of the electrolytic bath, high precision of level detection up to 5%, precise feeding of alumina fluoride salt in the alumina dense-phase conveying system, improved qualified rate of electrolytic bath molecular ratio, stable operation of the electrolytic bath, stable control of feeding as required and single-bath electrolyte molecular ratio, and applicability to precise feeding of alumina fluoride salt in the alumina dense-phase conveying system of the aluminum electrolytic bath.

The invention discloses a liquid level measuring method, a liquid level measuring device, equipment and a liquid level detecting circuit. The liquid level measuring device comprises a liquid level probe, the liquid level detecting circuit and a master controller. The liquid level probe is arranged in a container, and the top of the liquid level probe and a shell of the container are connected withthe liquid level detecting circuit; the master controller is connected with the liquid level detecting circuit and is used for determining the internal liquid level of the container according to electric parameters outputted by the liquid level detecting circuit. The liquid level measuring method, the liquid level measuring device, the equipment and the liquid level detecting circuit have the advantages that the water level can be continuously detected by the aid of the liquid level measuring method, the liquid level measuring device, the equipment and the liquid level detecting circuit; theliquid level probe is long in service life and simple in design as compared with infrared sensors, the cost can be saved, and the liquid level measuring method, the liquid level measuring device, theequipment and the liquid level detecting circuit are high in accuracy.

The invention discloses a lithium battery core cladding structure X-Ray detection system and a detection method. The lithium battery core cladding X-Ray detection system is characterized in that the lithium battery core cladding X-Ray detection system comprises a transmission device, a feeding and discharging device and an X-Ray detection device. A lithium battery core cladding is transferred and transported to the feeding and discharging device through a transmission device. The X-Ray detection device carries out the structure detection to the lithium battery core cladding transported from the feeding and discharging device. After detection the lithium battery core cladding is transported to a detected area. The X detection device comprises a frame, an automatic door, a display device, a operating table and a detection part. The display device and the operating table are arranged on the side of the frame. The automatic door is arranged on the front side of the frame. The detection part is arranged at the lower end of the frame. According to the lithium battery core cladding structure X-Ray detection system and the detection method, a series of automatic technological process of automatic transmission, automatic feeding and discharging and automatic detection of the lithium battery core cladding is realized. A protective net is adopted in the feeding and discharging device area, and the safety of the system and personnel is protected. In addition, the X-Ray detection device uses a fully enclosed protective cover, and the X Ray radiation is effectively isolated.

The present invention relates to an online detector, wherein an ion mobility spectroscopy technology is adopted as a basic detection technology, a sample injection rotation disk is controlled by a rotation motor, sample thermal analysis and headspace injection technology are combined, a sample is not subjected to complex pretreatment and is collected to the surface of a sampling sheet, the rotation motor controls the sample injection rotation disk so as to make the sample on the sampling sheet be subjected to continuous sample injection thermal analysis, and the obtained sample enters the detector through carrying with carrier gas so as to be subjected to online detection analysis. According to the present invention, the online detector is used for the continuous online detection of propofol anesthetics in human blood during surgeries so as to guide physicians in clinical administration.

The invention discloses a novel rapid detection method of calorific values in coal samples. The method comprises the following steps: S1, collecting and preparing a plurality of coal samples, and determining the calorific value of each sample by a conventional method respectively; S2, scanning and collecting spectral data and curves of the coal samples by using an NIRS (near-infrared reflectance spectroscopy) analyzer; S3, performing treatment on the spectral data of the samples obtained in S2, obtaining a calibration equation of the calorific value by regression calculation, correcting and verifying the calibration equation of the calorific value, and establishing a detection model; and S4, directly filling a sample injector of an NIR (near-infrared reflectance) instrument with the coal samples to be detected sequentially, starting a scanning key, automatically recording and storing spectra of the samples by the NIR instrument, determining the spectral type to which the samples belong, selecting the corresponding detection model, and obtaining detection results. The accuracy of the detection method of the calorific value in coal established in the invention is in line with the requirement on reproducibility tolerance of a current standard method, the operation is very simple, convenient and rapid, and the scanning detection, including data output, of one sample can be completed by about 50s. In the whole detection operation process, sample weighing is not required, no chemical reagents need to be added, and the novel rapid detection method has the characteristics of high speed, convenience and no pollution.