127results about How to "The detection result is accurate" patented technology

The invention discloses an overhead rail type firefighting inspection robot system. The overhead rail type firefighting inspection robot system comprises an overhead rail part, overhead rail type firefighting inspection robots, fire extinction equipment, a position identification block, a charging position, a remote control center and wireless signal transmission equipment. Each overhead rail type firefighting inspection robot comprises a traveling part, a lifting vision device, a position detection device, a detector, a fire extinction control device and a control and communication device. The robots move on a rail of the overhead rail part. The position detection devices conduct positioning by identifying the position identification block. The robots can be charged at the charging position. The fire extinction control devices operate the fire extinction equipment. The control and communication devices achieve communication of the robots and the remote control center through the wireless signal transmission equipment. The robots of the overhead rail type firefighting inspection robot system can conduct inspection detection along the rail, find out equipment failures and potential safety hazards and can conduct fire extinction operation in time.

The invention discloses a pile bottom cave sonar detection device and method. The signal output end of a three-dimensional electronic compass it connected with the compass signal input end of a single-chip microcomputer. The signal input end of a sonar stress wave driving module is connected with the signal output end of the single-chip microcomputer. The stress wave driving signal output end of the sonar stress wave driving module is connected with a sonar stress wave transmitter. A sonar stress wave receiving sensor is connected with the sonar signal input end of the single-chip microcomputer through a sonar stress wave signal processing module. The communication end of the single-chip microcomputer is connected with an on-site host through a communication cable. A sonar detection probe is perpendicular to the bottom of a pile. The pile bottom cave sonar detection device and method, which are provided by the invention, can carry out detailed karst cave or weak rock detection on an area below the pile bottom, and can accurately determine whether a karst cave or weak rock is in a pile bottom detection range, wherein the karst cave or the weak rock influences the bearing capacity of the pile bottom.

The invention relates to a method for detecting the flow speed and the flow direction of groundwater by using the temperature as a tracer and a measuring device. The invention adopts a linear heat source, voltage is exerted on the linear heat source so that the linear heat source can generate the heat, a plurality of temperature probes are arranged on the same circumference around the heat source at equal intervals, the values and the time of the temperature received by each probe are different under the effect of the water flow, the temperature received by the probes at the downstream of the heat source is higher than that received by the probes at the upstream of the heat source, the values of the received temperature are used for judging the flow direction of the groundwater, the value of the flow speed of the groundwater is relevant with the time of temperature change received by the probes, and the value of the flow speed of the groundwater is calculated through the time duration from the electrification initiation to the measured temperature change.

The invention discloses an unmanned aerial vehicle life detection method based on multi-source information fusion, and the method comprises the steps: S1, enabling an unmanned aerial vehicle to carrya multi-source sensor for the detection and search of a target area, and enabling the multi-source sensor to comprise a radar sensor, a visible light image sensor, and an infrared thermal image sensor; S2, respectively receiving and preprocessing the radar image, the visible light image and the infrared image to obtain a preprocessed radar image, a preprocessed visible light image and a preprocessed infrared image; and S3, carrying out image registration on the preprocessed visible light image and the infrared image, carrying out fusion, carrying out secondary fusion on a fusion result and theradar image, and outputting a target detection result. The method has the advantages of being simple in implementation method, high in interference resistance and environmental adaptability, high indetection efficiency and precision and the like.

The three-dimensional ultrasonic imaging non-destructive inspection system is used in detecting, locating, quantifying and classifying faults inside industrial products including components and parts, and its measurement data may be exchanged with other system for searching cause of the faults and improving quality. Structurally, it has ultrasonic system, electromechanical executing system, A / D system, signal processing system, 3D display system, automatic control system and timing system installed on a computerized platform. During operation, the ultrasonic system sends out ultrasonic pulse to workpiece and receives the echo, the A / D system processes the echo signal and converts into digital signal fed to the computer, the signal processing system establishes the 3D data base of faults, and the 3D display system displays the 3D ultrasonic image with its 3D figure display software.

The invention discloses an optical rotation angle field detection device based on polarized beam splitting imaging and a measurement method thereof. The device comprises a polarized light generating device, a polarized beam splitting device, a light receiving and imaging device, an image acquisition device and a data processing system, wherein the polarized light generating device emits a bundle of linearly polarized light; the linearly polarized light is vertically incident to the polarized beam splitting device and forms two bundles of linearly polarized light after emergence from the polarized beam splitting device; the two bundles of light are respectively received by the light receiving and imaging device; and then, the light intensity information of the two bundles of light is transferred to the data processing system through the image acquisition device and is processed by the data processing system to obtain an optical rotation angle field. In the invention, the detection process is free from manual adjustment, the operation is simple, and errors caused by manual adjustment can be avoided; a two-dimensional field in a polarization state can be obtained directly by adoptingan imaging and image processing algorithm, the detection result is more visual and accurate and is free from the effect of light source fluctuation.

The invention relates to a method for ultra-short-term prediction of solar irradiance in clear and cloudy weather, which is based on an all-sky imager (TSI-880) ground cloud picture, including cloud retrieval of real-time ground-based cloud images, using the cloud image retrieved from the time-series cloud cover to predict the cloud image; Then, the multiple linear regression equation is constructed by using the cloud amount and clear sky factor data of n time cloud pictures before t time. Finally, the cloud amount data of t + Delta t time cloud pictures in the future are substituted into theregression model to obtain the forecast clear sky factor, and then the forecast surface irradiance of the corresponding future time is calculated. The invention can effectively predict the variation of the ground solar irradiance caused by the movement and change of the clouds in the clear and cloudy weather condition in real time, overcomes the shortcomings of the existing solar radiation prediction method such as randomness, uncertainty, large error and the like in the clear and cloudy weather condition, and realizes the advantages of good real-time performance and high accuracy.

The invention discloses an unmanned aerial vehicle life detection method and system based on a multi-source sensor. The method comprises the steps that S1, an unmanned aerial vehicle carries a multi-source sensor to detect and search a target area, and the multi-source sensor comprises a radar sensor used for detecting a radar image, a visible light image sensor used for collecting a visible lightimage and an infrared thermal image sensor used for collecting an infrared image; S2, signals detected by the sensors are received and fused, and an area with a life detection target in the target area is obtained according to a fusion result; The system comprises a detection search module and a multi-source information fusion module. Rapid and accurate life detection within a large range can beachieved based on the unmanned aerial vehicle, the application range is wide, and flexibility and environmental adaptability are high.

A contactless detection apparatus has a first magnet ring, a second magnet ring, a first magnetic sensor, a second magnetic sensor and a controller. The two magnet rings are respectively mounted on two ends of a torsion shaft. When the torsion shaft rotates, the controller detects the magnetic fields of the two magnet rings through the two magnetic sensors. The controller calculates a twisting torque exerted on the torsion shaft and a rotational angle of the torsion shaft according to the detected magnetic fields at the same time. The detection apparatus of the invention has simple structure. The magnetic fields of both magnet rings do not interfere with each other, such that the detection result of the invention is accurate.

A detecting circuit for pixel electrode voltage of a flat panel display device, the flat panel display device having a plurality of scanning lines and a plurality of data lines crossing with the plurality of scanning lines, the plurality of scanning lines and data lines define a plurality of pixel units, and each of the pixel units including a pixel switching element and a pixel electrode. The detecting circuit for pixel electrode voltage includes at least one detecting sub-circuit for pixel electrode voltage. The detecting sub-circuit for pixel electrode voltage includes: a signal amplifying unit connected with the pixel electrode in the pixel unit, for amplifying a voltage signal of the pixel electrode; and a signal detecting unit connected with the signal amplifying unit, for detecting the voltage signal of the pixel electrode that has been amplified by the signal amplifying unit, and outputting a variation in the voltage signal of the pixel electrode with time. Compared with the prior art, the present invention has advantages of simple detecting circuit structure and accurate detection result.

The embodiment of the invention relates to a method for detecting a trace gas. A semiconductor laser (1), a laser alignment focusing system (2), a quartz resonator (3), an impedance amplifier (4), a control and data acquisition system (5) and a computer (6) are arranged in a beam propagation direction in sequence. Laser output by the semiconductor laser (1) is focused through the laser alignment focusing system (2) and then is transmitted along the width surface of the quartz resonator (3), and source wave produced after gas molecule absorbs the laser directly acts on the width surface of thequartz resonator (3). Piezoelectric signals produced after the quartz resonator (3) is excited by the sound wave are transmitted to the impedance amplifier (4) and are subjected to signal demodulationand postprocessing through the control and data acquisition system (5) and the computer (6). The method can rapidly detect various trace gases in the atmosphere environment.

The invention discloses a detection, recognition and location method for a ribbon underground target in a mountain land by detecting the ridge position in the mountain land environment and carrying out energy correction. The method belongs to the cross fields of pattern recognition, remote sensing technology and terrain analysis. The ribbon underground target can generate unusual energy as the heat field of the ribbon underground target is different from that of a mountain body, the heat island effect of the ridge can also cause the unusual energy of the mountain body, but the unusual energy due to the heat island effect is essentially different from the unusual energy caused by the underground target in the aspect of mode, therefore, the invention aims to realize the effect of reducing the detection recognition false alarm rate of the ribbon underground target in the mountain land environment by eliminating the influence of the weak energy unusual mode of the heat body effect of the ridge to the ribbon underground target. The detection method based on ridge energy correction for the ribbon underground target in the mountain land comprises the steps that the terrain elevation information is obtained, the digital elevation information is subject to noise reduction preprocessing, the ridge line is detected, the energy at the ridge position is corrected, and the ribbon underground target is detected.

The invention provides a detection device for an oil pipe coupling. The detection device comprises a half-sealed ram preventer. The half-sealed ram preventer comprises a body, a protective cover, a screw rod and flashboards, wherein flashboard cavities are symmetrically arranged on two sides of a main through route of the body; two flashboards are arranged in the two flashboard cavities respectively; the protective cover and a pressing cap are sequentially arranged on the outer side of the flashboard cavities; the internal end of the screw rod is positioned in the flashboard cavities; an operating handle and a lock nut are arranged at the external end of the screw rod; a driving nut is arranged on the internal end of the screw rod; a guide sleeve is sleeved on the outer side of the driving nut; a lug boss clamped at the external end of the driving nut is arranged at the external end of the guide sleeve; the internal end of the guide sleeve is connected with the flashboards; a rack is arranged on the flashboards, and meshed with a gear on a gear shaft; and a sensing wheel is also arranged on the gear shaft. The oil pipe coupling detecting device has a simple structure, is convenient to operate and accurate in detection results, avoids damage to the preventer and greatly improves the working efficiency of pressure operation.

The invention discloses a hyperspectral lidar system for aerosol scale spectrum measurement. The system uses fundamental frequency light generated by an Nd:YAG laser transmitter to emit lasers with the wavelengths being 355 nm, 532 nm and 1064 nm through a double-frequency-doubling crystal and a triple-frequency-doubling crystal correspondingly, and laser beams with the multiple wavelengths enterthe atmosphere at the same time; and then reflected light with the wavelengths of 355 nm, 532 nm and 1064 nm in an atmospheric reflection echo is separated through a telescope, a color separation filter and a narrow-band interference filter, rayleigh scattering signals of atmospheric molecules and aerosol meter scattering signals are separated by passing through different light paths of the separated reflected light, and hyperspectral lidars can accurately detect the physical properties and temporal and spatial distribution of the reflected light with the various wavelengths.

The invention discloses a variable integral time non-uniformity correction method based on scenes. The method comprises calculating row projection vectors and column projection vectors of background images of a detector under different integral conditions firstly, storing the background row and column projection vectors, and then forming a lookup table. When the detector shoot an image at the different scenes, in order to determine best integral time of the detector, the row and column projection vectors of the image are calculated firstly, related operation respectively between the row and column projection vectors and the background row and column vectors in the lookup table are performed, the most relevant background of the image is found, and the best integral time of the detector is determined through the background. Innovation points of the method are in that the best integral time of the detector in the different scenes can be found, the image obtained under the best integral condition is in favor of subsequent image registration, registration precision is improved, and then the method has the good non-uniformity correction effect.

The invention discloses a geological radar detecting scheme for back-filled grouting of a shield segment in a water-rich gravel stratum. The scheme comprises the following steps: 1) marking and recognizing various interference sources in a detected site, and analyzing the radar signal characteristics thereof; 2) detecting a relative dielectric constant, a dielectric wave velocity, and a resistivity of a shield segment, a grouting layer, and the water-rich gravel stratum, confirming the applicability of a geological radar, and calibrating wave velocities corresponding to different antenna frequencies; 3) building grouting body defect models by a geological radar detecting test platform for grouting a post wall of the shield segment in the water-rich gravel stratum, and analyzing radar signal characteristics of each defect model; 4) estimating and selecting geological radar detecting parameters; 5) distributing measuring lines; and 6) detecting post processing. The geological radar detecting scheme for the back-filled grouting of the shield segment in the water-rich gravel stratum can accurately detect the thickness, the defects, and the distribution of the post wall grouting layer of the shield segment, effectively avoids various interference, and can accurately, rapidly and comprehensively identify.

The invention provides an urban road traffic state detecting method based on a vehicle ad-hoc network. A vehicle with a wireless communication device and a GPS is selected as a traffic state 'probe' called as the probe vehicle hereinafter, communication between the probe vehicle and an RSU is achieved through the vehicle ad-hoc network, the RSU works out the time duration that the probe vehicle passes a tested road section according to the received state information and evaluates the traffic condition of the tested road according to the time duration the probe vehicle passes the tested road section. A self-adaptation window T algorithm is provided to adapt to constantly-changing traffic scenes of vehicle flow and to calculate the average passing time of all probe vehicles in a period of time. Finally, a simulation model is established for observation data of a real traffic scene, and the effectiveness of the simulation model is verified through a network simulator NS-2.

The invention discloses an information processing method, a cloud server and a mobile terminal, wherein collection information collected by sensors respectively corresponding to N mobile terminals and respective position information of the N mobile terminals are obtained; the N pieces of position information are position information relative to the same reference object; whether the N positions belong to the same region / the same geographic position or not is judged; when the n positions belong to the same region / the same geographic position, the same located region / the same located geographic position of the N positions is determined to be used as a first region / a first geographic position; whether a specific event requiring the warning occurs in the first region / the first geographic position or not is judged according to the N pieces of collection information; when the condition that the specific event requiring the warning occurs in the first region / the first geographic position is judged according to the N pieces of collection information, the warning information of the special event is generated and is sent to the M mobile terminals arranged in a second region / a second geographic position part.

The invention discloses a height detecting system for a concrete pouring surface of an ultra-deep pile hole. The height detecting system comprises a digital lifting control system, a sensor system and a signal acquisition control system, wherein the digital lifting control system comprises two radial transducers, a main motor, a driven motor, two decelerators, two synchronizing wheels and a control cabinet; the sensor system comprises two radial transduces; a clump weight is assembled at the bottom of each of the radial transducers; a rubber gasket is arranged at the outer side of the lower end of each of the radial transducers in a sleeving manner; and the signal acquisition control system is a signal acquisition controller. According to the height detecting system disclosed by the invention, a principle of ultrasonic wave detection is adopted; sensors are separately put in corresponding pre-buried sunken tubes; a digital lifting device is used for controlling the lifting of the sensors and detecting ultrasonic wave echoes for the accurate detection of the depth; the design of the height detecting system is reasonable; the ultrasonic wave sensors are adopted for detection, and the digital lifting device is used for the control of the lifting, so that the height detecting system is good in stability, high in accuracy and accurate in detecting results.

The invention discloses an acoustic-optic fusion-based seafloor high-resolution towed-type detection device. The device comprises a measuring ship and an underwater detection assembly; the underwater detection assembly comprises an optoelectronic towed body replacing a ballast; one end of the optoelectronic towed body is connected with the measuring ship through a photoelectric composite cable, and the other end of the optoelectronic towed body is provided with an acoustics towed body; and the optoelectronic towed body is integrated with an integrated detector. In order to solve the problem that no acoustics-optics fusion-based detection device for marine detection exists and to eliminate the defects of inconvenience in optical detection distance adjustment, the instability of the seafloor attitude of an acoustic detector, and high possibility of being lost of an optic detector under the condition of the fracture of the photoelectric composite cable, the invention systematically provides the acoustic-optic fusion-based detection device and method. According to the acoustic-optic fusion-based detection device and method, the height of the optic detector can be adjusted according to a seafloor attitude, so that the optic detector can be prevented from touching the seafloor; and the optic detector can float automatically.

The invention discloses underground drainage pipeline detecting equipment which comprises an equipment body, a power transmission mechanism, a walking wheel scissors fork mechanism, a walking wheel mechanism, a detecting radar scissors fork mechanism, a detecting radar automatic telescopic mechanism, a front camera mechanism and a rear camera mechanism. When the detecting requirements are met, thepassing of the underground drainage pipeline detecting equipment under the relatively complete underground pipeline conditions can be guaranteed, the current situation of an underground pipeline canbe detected and transmitted to the ground through images as well as data, and the corrosion situation of the underground pipeline can be checked; all servo driving system actuators are high in precision, reliability and response speed; the underground drainage pipeline detecting equipment is convenient to use, operate and maintain; the appearance is beautiful; and the after-sales service is excellent.

The invention provides an ammonia concentration detection method. The ammonia concentration detection method is used for detecting a concentration of ammonia in a photoetching machine. The method comprises S1, providing a wafer and forming light resistance on the wafer, S2, carrying out light resistance imaging to obtain a light resistance figure, wherein the light resistance figure comprises at least one first area influenced by ammonia in the photoetching machine and at least one second area uninfluenced by ammonia in the photoetching machine, wherein the first area and the second area are uniformly distributed on the wafer, S3, selecting the at least one first area and the at least one second area and carrying out critical dimension (CD) measurement to obtain at least one first CD and at least one second CD, and S4, according to the size difference of the first SD and the second CD, calculating an ammonia concentration in the photoetching machine. The method utilizes a CD measurement method to detect an ammonia concentration in the photoetching machine, produces minimum influence on photoetching machine production and realizes frequent detection.

The invention discloses an ultra-deep foundation pit enclosure structure plane leakage detection method and aims at the defects of an existing leakage detection method. According to the method, a leakage condition of a complex underground structure can be detected by high-sensitivity measurement of weak ion movement at a leakage position through an electro-osmosis principle. Under the leakage condition, even a slight leakage exists, the change of the electric field of the whole stratum can be generated due to the movement of ions, and for the change, the position with the abnormal electric field can be mastered through a developed multi-channel multi-sensor high-precision measuring system, so that a leakage point can be detected. Particularly, the detection work efficiency of a plurality of sensors can be achieved by arranging the single sensor, and a travel path is planned for the sensors, so that the leakage condition of an enclosure structure at each point position can be detected.The arrangement of the sensors is not needed, on one hand, the working pressure of constructors is reduced, time and labor are saved, and the working efficiency is indirectly improved; and on the other hand, the sensors do not need to be purchased, and the cost is reduced.

The invention relates to a streak tube imaging lidar distance strobing gate control method. The method comprises the following steps that: a laser emission moment is detected; a reflected light signalreceiving moment is detected; round-trip time is determined according to the laser emission moment and the reflected light signal receiving moment; the opening time of a distance strobing gate is determined according to the laser emission moment, the round-trip time and the preset time advance quantity of the opening of the distance strobing gate; and the closing time of the distance strobing gate is determined according to the laser emission moment, the round-trip time and the preset time delay quantity of the closing of the distance strobing gate. The invention also relates to a streak tubeimaging lidar distance strobing gate control device. According to the streak tube imaging lidar distance strobing gate control method and device of the invention, the opening time and closing of thedistance strobing gate can be automatically determined under the condition that a target distance is uncertain.

The invention discloses a plane exploration method based on a panoramic image depth map, belonging to the field of measurable street view images. According to the method, the ground exploration plane of a depth map is used, thus uphill and downhill road section detection results are more accurate, at the same time, since the depth map is automatically produced by using point cloud, the degree of automation is high, the manual intervention is not needed, and the data production cost is low. For a building facade area plane exploration result, a target panorama is selected according to the principle of maximum perspective, and the method is more in accordance with the actual situation.

The invention relates to a method for detecting spartina alterniflora distribution, in particular to a method for detecting spartina alterniflora distribution based on remote sensing big data and a cloud platform. The method solves the problem that the precision of the existing remote sensing technology for identifying the spartina alterniflora is low, and realizes the spatio-temporal distribution detection of the spartina alterniflora from big data and a cloud platform. The method comprises the following steps: 1, generating a spartina alterniflora sample library; 2, generating two basic image sets; 3, fusing into a new basic feature image; 4, calculating seven parameters; 5, performing fusion to generate a new image; 6, modifying related segmentation parameters until a segmentation result is obtained; 7, obtaining a training sample and a verification sample; and 8, obtaining spatial distribution information of the spartina alterniflora. According to the invention, the problem of invasion space distribution of the spartina alterniflora is accurately and rapidly detected and obtained by applying the remote sensing technology, the detection result is accurate, the precision and credibility of remote sensing classification of the spartina alterniflora are improved, repeatability and robustness are achieved, and the method has extremely important significance for monitoring remote sensing mapping of the spartina alterniflora.

Provided is a touch control device. The touch control device comprises a touch control display unit having a touch control display unit. The touch control device comprises a signal sending layer, a signal receiving layer, an elastic body and a metal framework, all of which are arranged from the top to the bottom from the back side of a self touch-control display unit. The signal sending layer comprises multiple first signal sending units and multiple second signal sending units, all of which are arranged at intervals. The signal receiving layer comprises multiple first signal receiving units and multiple second signal receiving units. The first signal sending units and the first signal receiving units are arranged oppositely. The second signal sending units and the second signal receiving units are arranged oppositely. Air gaps exist between the metal framework and the signal receiving layer. The area of each first signal sending unit is less than that of each first signal receiving unit directly facing each first signal sending unit. The area of each second signal sending unit is less than that of each second signal receiving unit directly facing each second signal sending unit. The invention further provides a method for detecting touch pressing force by utilizing the above touch control device.

The invention provides an elevator with passenger state recording and display functions. The elevator comprises a lift car and a suspended ceiling, wherein a pressure sensor is arranged at the bottom of the inside of the lift car; an infrared sensor and a human body sensor are arranged at the top of the lift car; first detection areas are formed by intersections of an induction area of the pressure sensor and an induction area of the infrared sensor, and the space in the lift car is uniformly divided into at least two first detection areas with equal sizes; an analysis box used for drawing a state analysis chart indicating the distribution state of people in the elevator in real time according to data acquired by the pressure sensor and the infrared sensor in real time is arranged outside the top of the lift car. The elevator has the advantages that detection results are accurate, an output image is visual, rescuers can be assisted in rescuing effectively and the like.

The invention relates to an underground medium detection system based on a correlated frequency domain identification method, which comprises a first signal generation module, a first earth system, a first time synchronization module, a first signal receiving module, a first self correlation module, a first frequency domain conversion module, a first cross correlation module, a second frequency domain conversion module and a first system function solution module. the function of using the correlated frequency domain identification method to suppress noise to acquire the apparent resistivity of the earth can be realized, and the system and the method have the advantages of simple operation, saved manpower and high precision.

The invention discloses an in-well electromagnetic receiver for detecting underground electrical structure. Apparent resistivity and apparent polarizability of an underground medium are measured so as to acquire electrical abnormality around a well head. The in-well electromagnetic receiver is mainly composed of a well head control unit, a winch and cable and an in-well detection pipe, and measuring range includes a three-component magnetic field B, three-component dB / dt and electric field vertical component. The in-well electromagnetic receiver realizes multi-component and multi-parameter measurement, is high in real-time data transmission speed, has lower noise at low frequency and is suitable for exploration of deep metal ore.