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105results about "Optical based geological detection" patented technology
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Radar system, target detection method and unmanned device
PendingCN119716844ARadio wave reradiation/reflectionOptical based geological detection4d imagingRadar systems
The embodiment of the invention provides a radar system, a target detection method and unmanned equipment, and relates to the technical field of radars. A signal processing module of the radar system alternately works in a first mode and a second mode, a radio frequency module is controlled to gate a transmitting antenna in a first mode in the first mode, and the radar system performs target detection based on a 4D imaging technology; in the second mode, the radio frequency module is controlled to gate the transmitting antenna in a second mode, and the radar system carries out target detection based on the phased array technology; the radio frequency module processes the echo signal received by the receiving antenna; and the signal processing module obtains target detection data according to a processing result of the echo signal. As the radar system can alternately work in the first mode and the second mode, target detection is carried out based on the 4D imaging technology in the first mode, and accurate measurement of a close-range target is realized; and in the second mode, target detection is carried out based on a phased array technology, and remote target detection is realized, so that various working scene requirements are met.
Owner:GUANGZHOU XAIRCRAFT TECH CO LTD
Monitoring early warning determination method and device, and storage medium
The invention discloses a monitoring and early warning determination method and device and a storage medium. The method comprises the steps that first optical fiber data before a target storage well injects a target quantity of substances into a stratum is obtained; acquiring second optical fiber data after the target quantity of substance is injected into the stratum; calculating actual injection parameters corresponding to the target quantity of substances according to the first optical fiber data and the second optical fiber data; and comparing the actual injection parameters with pre-estimated injection parameters preset for the target quantity of substances, and determining whether to send out monitoring early warning for the target sealing well or not according to a comparison result. The problem that the carbon dioxide injection process cannot be accurately monitored to improve the monitoring efficiency and accuracy is solved. Furthermore, in the geological carbon dioxide sequestration monitoring process, the optical fibers are arranged in the underground area where carbon dioxide is injected, the diffusion condition of carbon dioxide and the temperature and strain changes of underground space can be monitored in real time, and therefore more accurate and reliable underground carbon dioxide sequestration monitoring is achieved.
Owner:华能庆阳煤电有限责任公司 +1
Concentration degree detection method based on millimeter wave radar, program product and electronic equipment
The invention discloses a concentration degree detection method based on a millimeter wave radar, a program product and electronic equipment, and the method comprises the steps: controlling a millimeter wave radar sensor to transmit an electromagnetic wave signal to a target space region, and receiving an echo signal reflected by the target space region; judging whether a human body exists in the target space area or not according to the echo signal; when determining that a human body exists in the target space area according to the echo signal, extracting concentration degree detection data of the human body based on the echo signal; and calculating current concentration degree data of the human body in the current time period based on the concentration degree detection data.
Owner:SHENZHEN HYLGEAI HEALTH TECHNOLOGY CO LTD
Mineral component and content testing device and method suitable for uranium-bearing reservoir
The invention relates to the technical field of cable logging, and particularly discloses a mineral component and content testing device and method suitable for a uranium-bearing reservoir, and the device comprises a cable logging system, a logging depth calibration system and a time synchronization system, the logging tool assembly comprises a spectral logging tool, a natural gamma-ray spectrum logging tool, an epithermal neutron logging tool and a neutron capture gamma-ray spectrum logging tool. The method comprises the steps of combining a logging tool assembly and a cable logging system, configuring a logging depth calibration system, configuring a time synchronization system, carrying out PTP time synchronization on the cable logging system and the logging depth calibration system, collecting original logging time and original logging data, carrying out time resampling and depth correction on the original logging data, and carrying out time synchronization on the logging depth calibration system and the cable logging system. And resampling the logging data according to the logging depth and time to divide a stratum structure. According to the method, acquisition and data fusion of the mineral components, the radioactive element content and the porosity characteristics of the stratum around the well can be realized, and the exploration precision, efficiency and evaluation accuracy are improved.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
Machine room wild animal intelligent defense system based on millimeter wave radar
PendingCN119672881Aeasy to distinguishreduce riskBurglar alarm electric actuationRadio wave reradiation/reflectionThreat levelBiology
The invention relates to the field of intelligent monitoring, and discloses a machine room wild animal intelligent defense system based on a millimeter wave radar, which comprises a signal capture module, a signal processing module, a feature extraction module, a classification tracking module and an alarm linkage module, the signal capturing module collects target reflection signals through a millimeter wave radar, the signal processing module carries out multi-target separation and interference suppression on the signals, the feature extraction module extracts time-frequency characteristics and motion track characteristics of targets, and the classification tracking module classifies the targets and tracks the motion states of the targets in real time. And the alarm linkage module evaluates the threat level according to the classification result and triggers corresponding defense measures. The system can accurately identify and track targets, timely respond and execute defense actions, has the advantages of high precision, multi-target monitoring, real-time dynamic tracking, intelligent defense and the like, and can effectively guarantee safe operation of machine room equipment.
Owner:INNER MONGOLIA UHV BRANCH OF STATE GRID INNER MONGOLIA EASTERN ELECTRIC POWER CO LTD +1
Drainage device for bridge floor runoff hazardous chemicals in water source protection area
The utility model provides a drainage device for bridge floor runoff hazardous chemicals in a water source protection area, and relates to the technical field of drainage of highway bridges crossing drinking water sources. The main drainage pipeline is installed on the bridge body through a hanging bracket, the multiple drainage branch pipelines are fixed to the side wall of the bridge body through a frame body, the multiple drainage holes are formed in the bridge floor and used for improving the drainage capacity of the structure, and the main drainage pipeline and the multiple drainage branch pipelines are all arranged on the outer side of the bridge body. The drainage pipeline is communicated with the drainage hole; the main drainage pipeline is provided with a communicating structure communicating with the drainage structure or the emergency water storage structure, after the dangerous chemicals leak, the communicating position of the main drainage pipeline and the drainage structure is intercepted through the communicating structure, at the moment, the main drainage pipeline communicates with the emergency water storage structure, and liquid carrying the dangerous chemicals enters the emergency water storage structure. And liquid with hazardous chemical substances is prevented from being directly guided into the water source from the drainage structure to pollute soil and water sources in the water source.
Owner:CHINA RAILWAY NO 2 ENG GROUP CO LTD +1
Hard drive destruction device and method
A hard drive destruction device includes a kiosk having: a user interface, a hard drive portal, a camera, and a crushing unit; and a software for managing the hard drive destruction device. The software includes: an artificial intelligence and / or machine learning software component that detects and analyzes a hard drive inserted into the hard drive portal using the camera; and a back-end software component comprising a memory that stores a captured image of the hard drive, a verification information, and a chain-of-custody documentation.
Owner:HANSEN CHRIS
Rodent monitoring system and method
PendingCN119450389Aincrease authenticityaccurate analysisParticular environment based servicesUsing subsonic/sonic/ultrasonic vibration meansAgricultural scienceEdge computing
The invention relates to a rodent monitoring system which comprises a first sensor unit, a second sensor unit, a master control edge computing unit and a cloud server. The infrared sensor and the pressure sensor are in signal connection with the main control edge calculation module, and the cloud server is configured to be used for receiving the image information, the weight information and the body length information in real time. The rodent information can be monitored in real time, dynamic information such as types, distribution and quantity of rodents in a monitored target area can be remotely mastered, the rodent monitoring system has the advantages of being unattended, reducing manual investigation cost, achieving all-weather monitoring and the like, and the growth conditions of the rodents in part of areas can be analyzed more accurately.
Owner:YANTAI WEIDA ENVIRONMENTAL TECH CO LTD
Millimeter wave imaging equipment and security inspection equipment
ActiveCN222636301URadio wave reradiation/reflectionOptical based geological detection3d imageSoftware engineering
The utility model provides millimeter wave imaging equipment and security inspection equipment. The millimeter wave imaging device includes a millimeter wave transmit-receive array and a reflecting plate, and the reflecting plate is configured to be opposite to the millimeter wave transmit-receive array. The millimeter wave imaging equipment can construct a holographic image of a main body of the inspected object based on the received millimeter waves reflected back from the surface of the inspected object, and reproduce a three-dimensional image of the main body of the inspected object based on the constructed holographic image of the main body; and the millimeter wave imaging device is also capable of constructing a holographic image of a side portion of the object to be inspected based on the millimeter waves reflected back from the reflecting plate, and reproducing a three-dimensional image of the side portion of the object to be inspected based on the constructed holographic image of the side portion, thereby determining whether the object to be inspected contains other articles.
Owner:BEIJING SHENMUTEK CO LTD
Terahertz imaging security inspection instrument-based explosive detection method and system
ActiveCN119439297AEasy to detectReduce missed detection rateMaterial analysis by optical meansOptical based geological detectionEngineeringImaging data
The invention relates to the technical field of terahertz imaging detection, and discloses an explosive detection method and system based on a terahertz imaging security check instrument, and the method comprises the steps: carrying out the security check scanning of a person passing through the security check instrument through employing the security check instrument based on the terahertz imaging technology, recognizing the absorption and reflection spectrum of the personal belongings of a target person in a terahertz frequency band, and carrying out the detection of the personal belongings. Constructing spectral data and image data; and matching the spectral data of the target object with the data associated with the explosive in the terahertz fingerprint database, and comparing the matching degree of the detected target object and the data in the terahertz fingerprint database with an explosive judgment threshold. Aiming at the situation that the explosive is wrapped by a material absorbing terahertz waves, the system can dynamically adjust detection parameters, reduce the probability of missed detection caused by a covering material and improve the detection capability of complex wrappings, and even if the matching degree of a target object is lower than an explosive judgment threshold value during first detection, the target object can be accurately detected. A secondary decision mechanism allows for further analysis of items approaching a threshold.
Owner:ANHUI ZHONGKE TERAHERTZ TECH CO LTD
Specified standing posture prompt graph generation method and system and millimeter wave self-service scanning security check method and system
PendingCN119810252AImage analysisDrawing from basic elementsPhysical medicine and rehabilitationSecurity check
The invention provides a specified standing posture prompt graph generation method and system and a millimeter wave self-service scanning security check method and system. The method comprises the following steps: obtaining a standing posture graph of a detected person through a camera device; obtaining a body type standing posture graph of the examined person through the standing posture graph of the examined person; based on a standard standing posture graph, adjusting the body type standing posture graph of the examined person, obtaining a standing posture prompt graph of the examined person, and taking the standing posture prompt graph as a specified standing posture prompt graph of the examined person; obtaining a current standing posture image of the examined person based on the standing posture image and the posture characteristics of the examined person obtained through a camera device; the designated standing posture prompt graph of the examinee and the current standing posture graph are displayed to the examinee at the same time, and the designated standing posture prompt graph can be different according to the posture characteristics of different examinees.
Owner:BEIJING SHENMUTEK CO LTD +2
An inserting rod device
Owner:HANGZHOU ZHONGYA MACHINERY CO LTD
Aerosol supply system
The aerosol delivery system (1) includes a consumable (2) and an aerosol delivery device (4) configured to receive the consumable (2). The aerosol delivery device (4) includes a receptacle (8) for receiving the consumable. A cover (103) is also provided, the cover (103) being movable between a first closed position C1 in which the cover at least partially covers the receptacle (8) and a second open position C2 in which the cover at least partially exposes the receptacle (8). A first portion (79), such as a light source (81) or an aerosol generator (40), or a sensor (101) is configured to be controlled in response to determining that the cover has moved to the second position C2. In this manner, the first portion (79) is operated in response to determining that the cover (103) is open, and power of the aerosol delivery system (1) can be saved by not previously operating the portion (79).
Owner:NICOVENTURES TRADING LTD
A real-time fusion millimeter wave imaging frame increase method and system
ActiveCN115755044BDetection using electromagnetic wavesRadio wave reradiation/reflectionPhotoswitchRadiology
The present invention provides a real-time fusion millimeter wave imaging frame increase method, which can solve the problems of poor real-time imaging and low acquisition frame rate of existing systems, resulting in poor continuity of video images and non-smooth display. The original single-frame millimeter wave imaging image of the target person under test entering the security inspection channel at the current moment, which is acquired by the millimeter wave security inspection imager; the direction of travel and the area where the target person under test is located in the security inspection channel are determined according to the current signal status of each photoelectric switch; the imaging target area is separated from the original single-frame millimeter wave imaging image at the current moment and transferred to a newly added background image to form an image to be analyzed; the imaging target area in the image to be analyzed is partitioned and the imaging offset direction of the target person under test at the next moment is predicted; the imaging target area is offset and the offset imaging target area is integrated with the background area in the original single-frame millimeter wave image to form a newly added image frame.
Owner:SHANGHAI HENGLIN OPTIC ELECTRIC CO LTD +1
Systems, methods, and apparatus for the operation of electronic components and the display of information related to agricultural implements
ActiveUS12481084B2Broadcast seedersInput/output processes for data processingTouchscreenElectronic component
A display unit is connected to an agricultural implement to provide inputs and operational controls, as well as status and set up, of the implement. The display unit can be a touchscreen or other device that can receive inputs to set up, control, store information, and recall information associated with the operation of the agricultural implement. The display unit can provide a number of different types of inputs to allow for the control of the various components of the implement. Information shown, tracked, managed, communicated, or otherwise used by the system can be selected and set up by a user to customize the experience and to provide additional information useful for agricultural operations.
Owner:KINZE MFG INC
Method and apparatus for extracting unambiguous UAV (e.g. drone) signature using high-speed camera
Owner:NAT RES COUNCIL OF CANADA +1
Device and method for measuring at least one property of a fluid
PendingFR3167451A1Material analysis using sonic/ultrasonic/infrasonic wavesMaterial analysis by optical means
The invention relates to a device for measuring at least one property of a fluid, comprising: - a cell (1) adapted to receive a volume of fluid, - an optical waveguide (2) comprising an input (20) adapted to be coupled to a light source (3) so as to transmit an optical signal (L) emitted by the light source, - an optomechanical resonator (7) arranged in the cell (1) so as to present at least one principal surface in contact with the fluid, the resonator comprising a suspended element (70) arranged in the vicinity of the optical waveguide (2) so as to allow evanescent coupling between the optical waveguide (2) and the suspended element (70), - a measuring unit (5) arranged at an output (21) of the optical waveguide (2) to receive the output optical signal, and - a processing unit coupled to the measuring unit. Figure for the abstract: Fig. 1
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +2
Signal processing device and security check system
ActiveCN222439395UMaterial analysis by optical meansOptical based geological detectionFluoroscopic imageDisplay device
The utility model provides a signal processing device and a security inspection system, which can be applied to the technical field of security inspection. The signal processing device comprises a first screen splitter used for transmitting an article perspective image signal about a target article from an image acquisition device; the first signal processor obtains a detection result about the safety of the target article according to the article perspective image signal, and outputs an article detection image signal corresponding to the detection result; the first input end of the switcher is connected to the second output end of the first screen splitter, the second input end of the switcher is connected to the output end of the first signal processor, and under the condition that the switcher receives a switching instruction, one of a transmitted article perspective image signal and an article detection image signal is transmitted to the first signal processor through the switcher; and switching the article perspective image signal to the other one of the article perspective image signal and the article detection image signal, so that a display electrically connected with the switcher displays an image corresponding to the other one of the article perspective image signal and the article detection image signal.
Owner:NUCTECH CO LTD +1
Millimeter wave security inspection device
PendingCN121299790ARadio wave reradiation/reflectionOptical based geological detectionStructural engineeringSecurity check
The invention discloses a millimeter-wave security check device, and relates to the technical field of millimeter-wave security check, the millimeter-wave security check device comprises a base assembly, the base assembly comprises a supporting seat, a square groove and a square plate, the square groove is formed in the middle of the top surface of the supporting seat, the square plate is slidably connected with the square groove, and pressure sensors are fixedly connected to the two sides of the bottom surface of the square groove; the top face of the square groove is fixedly connected with a plurality of damping springs, and the top ends of the damping springs are fixedly connected with the bottom face of the square plate. When security check is carried out, a user stands on the top surface of the square plate, the baffle plate is opened through linkage cooperation of components, the baffle plate blocks the user, the baffle plate forces the user to complete a complete security check process through physical blocking, the risk of missing check caused by the fact that the user leaves in advance is avoided, and after security check is completed, the square frame and the security check probe return to the original position, and the baffle plate is folded. The user can pass normally, the whole security check process is standardized by the device, and the passing efficiency is improved.
Owner:HUAINAN UNITED UNIVERSITY
Explosive detection and elimination device
ActiveCN223526519UClosed circuit television systemsRadio wave reradiation/reflectionComputer hardwareRemote control
The utility model discloses an explosive detection and elimination device which comprises a movable device main body, and an explosive detection module, an explosive elimination module, a communication module, a main control module, a display screen and a camera which are arranged on the movable device main body, the explosive detection module, the explosive ordnance disposal module, the communication module, the display screen and the camera are electrically connected with the main control module. The main control module is in communication connection with the remote control module through the communication module; the explosive detection module comprises a millimeter wave radar signal transmitting and receiving unit. According to the utility model, explosives can be detected in a long distance, and the detection and identification precision of the explosives is improved.
Owner:SUZHOU R&D CENT OF NO 214 RES INST OF CHINA NORTH IND GRP
Smart television infrared monitoring method and device, electronic equipment and storage medium
PendingCN119296288ASolve real-timeSensing radiation from moving bodiesDetection/prospecting using thermal methodsRemote sensingReal-time computing
The invention discloses a smart television infrared monitoring method and device, electronic equipment and a storage medium. The method comprises the steps that target heat source information of a target object in a target area is acquired through an infrared sensor of a smart television; comparing the target heat source information with the reference heat source information to obtain a comparison result; the object state information of the target object is determined based on the comparison result, the heat source information is monitored through the infrared sensor in the smart television, the specific state of the object corresponding to the heat source information is obtained by analyzing and comparing the heat source information, and the effect of monitoring the house in real time through the smart television is achieved.
Owner:TCL OVERSEAS ELECTRONIC (HUIZHOU) CO LTD
Liquid detector
The utility model discloses a liquid detector, which is used for detecting the type of liquid contained in a metal or non-metal container and comprises a machine body and a detection assembly, an installation window is arranged on the machine body, and the detection assembly comprises a second detector and a first detector which are arranged in the installation window. The first detector and the second detector are each composed of a storage rack and a detection part, and the inner bottom face of a container containing groove formed above the storage racks is arranged to be an inclined face. The device has the characteristics of high detection efficiency and high accuracy, the container can be obliquely placed, the container does not need to be held for a long time for detection, the accuracy of the detection result is prevented from being influenced by shaking caused by holding the container, meanwhile, liquid in the container is gathered at the bottom of the container, heating or microwave detection on the liquid is facilitated, and the detection efficiency is improved. The liquid microwave detection speed and the temperature rising speed of the liquid in the container are increased, and the liquid detection efficiency is improved.
Owner:SHENZHEN JIN AN CHENG TECH CO LTD
Pipeline endoscope probe and pipeline endoscope assembly
A pipeline endoscope probe includes a housing, an image capturing device and a lighting device. The pipeline endoscope assembly includes a display and a pipeline endoscope probe. The pipeline endoscope probe includes: a housing (10), defining an accommodating chamber (11) and an image capturing window (12) communicated with the accommodating chamber (11); an image capturing device (30), wherein the image capturing device (30) is arranged in the accommodating chamber (11) and the image capturing device (30) is oriented towards the image capturing window (12); and an angle detecting or adjusting element, configured to detect or adjust an image capturing angle of the image capturing device (30), so as to control images displayed by the display (15) communicated with the image capturing device (30) maintain an upright angle.
Owner:SHENZHEN ANDELIAN TECH CO LTD
Pipeline endoscope probe and pipeline endoscope assembly
A pipeline endoscope probe includes a housing, an image capturing device and a lighting device. The pipeline endoscope assembly includes a display and a pipeline endoscope probe. The pipeline endoscope probe includes: a housing (10), defining an accommodating chamber (11) and an image capturing window (12) communicated with the accommodating chamber (11); an image capturing device (30), wherein the image capturing device (30) is arranged in the accommodating chamber (11) and the image capturing device (30) is oriented towards the image capturing window (12); and an angle detecting or adjusting element, configured to detect or adjust an image capturing angle of the image capturing device (30), so as to control images displayed by the display (15) communicated with the image capturing device (30) maintain an upright angle.
Owner:SHENZHEN ANDELIAN TECH CO LTD
Explosives detection method and system based on terahertz imaging security inspection instrument
ActiveCN119439297BEasy to detectReduce missed detection rateMaterial analysis by optical meansOptical based geological detectionImage detectionThresholding
The present invention relates to the field of terahertz imaging detection technology, and discloses an explosive detection method and system based on a terahertz imaging security scanner, including using a security scanner based on terahertz imaging technology to perform security scans on people passing through the security scanner, identifying the spectrum absorbed and reflected by the target person's belongings in the terahertz frequency band, and constructing spectrum data and image data; matching the spectrum data of the target item with the data associated with explosives in the terahertz fingerprint library, and comparing the matching degree between the detected target item and the terahertz fingerprint library data and the explosive determination threshold. In view of the situation where explosives are wrapped with materials that absorb terahertz waves, the present invention can dynamically adjust the detection parameters of the system, reduce the probability of missed detection caused by covering materials, and improve the detection capability of complex wrapped objects. Even if the matching degree of the target item is lower than the explosive determination threshold during the first detection, the secondary determination mechanism allows further analysis of items close to the threshold.
Owner:ANHUI ZHONGKE TERAHERTZ TECH CO LTD
A millimeter wave multi-target real-time imaging detection device
This utility model discloses a millimeter-wave multi-target real-time imaging detection device, relating to the field of millimeter-wave real-time imaging technology. It includes a support frame, a millimeter-wave array at its top, a sliding block on the bottom surface of a support plate, and a receiving unit on the outer surface of the millimeter-wave array. A servo motor is mounted on the inner side of the millimeter-wave array, and an adjustment mechanism is connected to the output of the servo motor. This adjustment mechanism improves detection accuracy. This millimeter-wave multi-target real-time imaging detection device, by incorporating a servo motor with its output connected to the adjustment mechanism, drives the adjustment mechanism to adjust the height of the imaging components, thereby improving detection accuracy and preventing missed detections. Furthermore, by using a sliding block and two sets of slide rails, with the sliding block moving horizontally along the slide rails, the device's mobility is improved, facilitating its relocation and meeting large-scale requirements.
Owner:刘晶晶
Measurement system and measurement method for measuring detection performance of human body safety inspection equipment
ActiveUS12468065B2Nuclear radiation detectionOptical based geological detectionHuman bodyTest efficiency
The present invention discloses a test system and a test method for testing the detection performance of a human body safety inspection apparatus, and the present solution includes a moving track assembly, a fixed tray assembly, a human body model assembly, a control assembly, a test card assembly and a test article. At the same time, the temperature of different parts on a human body model is controlled to vary within 36° C. to 45° C. to simulate the temperature of different parts of a real human body, while controlling the human body model carrying a test card and / or test article to rotate and adjust height so that the human body model rotates at different angles to face the human body safety inspection apparatus to be tested, and the human body model is driven to move back and forth repeatedly at a set speed to an appropriate position in a region under inspection to simulate a real person in a detection state in an actual application scenario, thus completing the automatic laboratory testing of the human body safety inspection apparatus. The present solution realizes the automatic laboratory detection of the human body safety inspection apparatus, thus greatly reducing the labor cost, and the data accuracy is effectively improved, thus effectively increasing the testing efficiency.
Owner:THE THIRD RES INST OF MIN OF PUBLIC SECURITY
MIMO antenna array for active millimeter wave security inspection imaging, device and method for security inspection of the human body
InactiveDE602020062707T2Radio wave reradiation/reflectionOptical based geological detectionHuman bodySoftware engineering
Owner:NUCTECH CO LTD +1
Device and method for measuring property of a fluid
PendingUS20260104351A1Material analysis using sonic/ultrasonic/infrasonic wavesMaterial analysis by optical means
A device for measuring at least one property of a fluid, including a cell (1) adapted to receive a volume of fluid, an optical waveguide (2) including an input port (20) adapted to be coupled to a light source (3) so as to transmit an optical signal (L) emitted by the light source, an optomechanical resonator (7) arranged in the cell (1) so as to have at least one main surface in contact with the fluid, the resonator including a suspended element (70) arranged in the vicinity of the optical waveguide (2) so as to allow evanescent coupling between the optical waveguide (2) and the suspended element (70), a measuring unit (5) arranged at an output port (21) of the optical waveguide (2) for receiving the output optical signal, and a processing unit coupled to the measuring unit.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +2
Measuring apparatus, measuring method and recording medium
ActiveUS12404659B2SurveyAcceleration measurement using interia forcesMagnetic tension forcePhase correction
The attitude of an excavating part during excavation is accurately measured. A measuring apparatus of the present invention executes an attitude estimating processing and a phase correction amount calculating processing. The phase correction amount calculating processing calculates an offset between a gravity tool face and a magnetic force tool face, and sets the calculated offset as an estimated offset. The attitude estimating processing sets the gravity tool face based on the acceleration data as a measured gravity tool face, the magnetic force tool face based on the magnetic field data as a measured magnetic force tool face, a difference between an offset between the measured gravity tool face and the measured magnetic force tool face and the estimated offset as a phase correction amount, and data obtained by correcting the magnetic field data with the phase correction amount as corrected magnetic field data, and determines the attitude based on the acceleration data and the corrected magnetic field data.
Owner:JAPAN AVIATION ELECTRONICS IND LTD