4301 results about "Measuring equipment" patented technology

Locator systems are disclosed for locating buried utilities such as conduits, cables, pipes. or wires. The locator system may include image-capturing and position and orientation measuring devices such as magnetic compass, accelerometers, gyros, GPS, and DGPS. The system may associate images captured during the locate process with buried utility position data and the other sensor data. These data and images may be further associated with terrain images from satellites or aerial photography to provide a highly precision map and database of buried utility locations and visual images of the burial site. Information so obtained may be transferred to a hand-held personal communication device, such as a smart phone to show the location of buried utilities in combination with photo-images and / or terrain maps.

The invention relates to the technical field of laser measuring equipment, and discloses laser length measuring equipment for caution light production, which comprises a supporting seat, a rotating table rotationally mounted at the top end of the supporting seat, a laser measuring instrument arranged above the rotating table and a plurality of fixing assemblies arranged on the rotating table, a driving mechanism for driving the rotating table to rotate is arranged on the rotating table; through meshing arrangement of a first bevel gear and a second bevel gear in the synchronous driving assembly and a threaded transmission structure of a driving screw rod and a sliding block, synchronous movement of a clamping plate driven by a plurality of vertical plates is achieved, it is ensured that a warning lamp cover is accurately positioned to the axis position of the detection table, and the detection efficiency is improved. Therefore, the laser measuring instrument can accurately irradiate the center position of the top end of the lampshade, the problem of large measurement data deviation caused by insufficient positioning precision in the prior art is effectively solved, and the detection precision is remarkably improved.

Systems and methods for characterizing a subterranean formation that include a drill bit for drilling a deviated wellbore through the formation and that repeatedly changes direction. Also included is a directional drilling system and measurement equipment to detect a property of the formation. A trajectory control system is operable to: receive a well log; determine a property of the wellbore; segment the well log based on the property; and correlate one of the segments with the well log previous to the segment to determine a matching score for the segment. If the matching score is equal to or greater than a minimum threshold, the segment was taken in the formation and at the same stratigraphical true vertical depth (“STVD”). If the matching score is less than the minimum threshold, the segment was not taken in the formation and not at the same STVD and the STVD is estimated.

The invention discloses a ship mobile energy storage system CAN communication protocol automatic test system and method, and the system comprises a protocol modeling and test configuration module, a simulation node behavior simulation module, a CAN bus interaction and power closed loop module, and a test analysis and result evaluation module. A CAN communication protocol specification of the ship mobile energy storage system and parameters of tested equipment can be obtained, a protocol analysis model and a test configuration file are constructed for format verification and logic consistency verification, meanwhile, a corresponding test case sequence is automatically generated, and the message sending time is controlled to generate a time sequence simulation message flow; and sending the time sequence simulation message flow to the tested equipment, simulating energy interaction behavior acquisition to generate a power feedback data set, testing to obtain a signal consistency deviation and a power execution error to construct a protocol conformity evaluation matrix, and generating a visual test report. According to the invention, the high coverage rate and automatic closed-loop test of the CAN communication protocol can be realized.

The invention is suitable for the technical field of road construction, and provides a roadbed settlement safety monitoring method and system, and the method comprises the steps: obtaining measurement equipment, and obtaining equipment information according to the equipment; obtaining basic information according to the measurement equipment information, obtaining a confidence scoring function according to the basic information, and fusing the equipment measurement results according to the fusion weight coefficient to obtain a fusion result; constructing settlement time sequence data according to a fusion result, constructing an anomaly detection model by combining key change characteristics, if the settlement rate is judged to continuously exceed a set threshold value, performing early warning prompt, and marking the stage as a potential mutation interval; and according to the risk label, a cause tracing suggestion is provided, and according to the identified settlement trend state and the risk level, the scheme of each monitoring point is adjusted, so that the problem that the roadbed settlement process cannot be detected in time in the existing roadbed settlement detection process is solved. And when the settlement exceeds a threshold value, timely discovery and processing cannot be carried out.

The invention discloses a convolutional neural network vehicle fuel consumption detection method based on ultrasonic sensors, and relates to the technical field of vehicle fuel consumption detection, and the method comprises the steps: 1, installing a plurality of ultrasonic sensor arrays on a vehicle, and monitoring the liquid level change of a fuel tank through the ultrasonic sensors; step 2, performing normalization processing on data acquired by the ultrasonic sensor, and eliminating differences caused by different measuring devices and measuring environments; and step 3, analyzing the preprocessed data through a convolutional neural network model to obtain the vehicle fuel consumption. According to the convolutional neural network vehicle fuel consumption detection method based on the ultrasonic sensor, the ultrasonic sensor is adopted, non-contact measurement is achieved, mechanical abrasion is reduced, key parameters related to fuel consumption, such as the fuel oil liquid level and the distance from a fuel spray nozzle to a combustion chamber can be accurately measured, and the fuel consumption can be accurately detected through accurate measurement of the parameters. And the actual fuel consumption of the diesel engine can be calculated more accurately.

The invention discloses a radio frequency on-chip test system and a radio frequency on-chip test method. The radio frequency on-chip test system comprises a probe temperature adjusting module, an instantaneous pulse acquisition module, a dynamic compensation module, a thermal isolation module, radio frequency measurement equipment and a bearing platform. Wherein the probe temperature adjusting module is used for independently adjusting the temperature of a probe to a target value; the instantaneous pulse acquisition module is used for transmitting a radio frequency pulse signal and acquiring a radio frequency parameter when the probe is in contact with the normal temperature calibration sheet; the dynamic compensation module dynamically corrects the radio frequency parameters based on the real-time temperature of the probe; the thermal isolation module is used for reducing heat exchange between the probe and the external environment; the radio frequency measuring equipment is used for collecting and analyzing the radio frequency parameters; the bearing platform is used for bearing the normal temperature calibration sheet or the device to be tested. Through the synergistic effect of multiple modules, the problem of test errors caused by temperature fluctuation is effectively solved, and the precision and stability of radio frequency on-chip test are remarkably improved.

The invention provides a real-time network topology and parameter identification method and system for a power distribution system, and the method comprises the steps: collecting the data of a node for installing an intelligent electric meter in a historical power distribution network, and constructing a data set; calculating an admittance matrix, deducing a network topology structure, and preliminarily estimating line parameters; modeling the power grid topology based on a GCN (Graph Convolutional Network), calculating the importance of each node, and iteratively optimizing the placement strategy of the SMD through a loss function; on this basis, SMD data is adopted as the input of a graph neural network GNN, and real-time network topology and parameter identification are carried out on the system; and if the change of the network topology is identified, performing fine adjustment on the pre-trained GNN parameters through a transfer learning method to adapt to a new topological structure, and re-identifying the parameters. According to the method, under the condition of limited measurement equipment, the placement strategy of the measurement equipment can be optimized, and the identification real-time performance and precision of the topology and parameters of the power distribution network are improved.

Disclosed in the present invention are a wind field correction method and system applied to a single-station remote sensing device. The method comprises the following specific steps: S1, acquiring wind field data by means of a data information acquisition apparatus, and obtaining radial wind speed information of a current acquisition point by means of a data processing module; S2, on the basis of the hypothesis of an uniform wind field, using a classical wind speed reconstruction algorithm for inversion to obtain a three-dimensional wind speed vector of the acquisition point; S3, establishing an error model; and S4, on the basis of an error factor β calculated by means of the error model, performing data correction on the three-dimensional wind speed vector of the acquisition point obtained by means of inversion in S2. Compared with the prior art, the present invention provides a high-precision correction method, which can be operated on low-end hardware, and can also be directly installed and operated on hardware of a measurement device, so that measurement results can be corrected in real time, no additional complexity can be brought to users, and costs are reduced; and the present invention is suitable for solving complex system problems when accurate boundary conditions cannot be obtained.

The invention provides an electromechanical equipment full-life-cycle management system, and the system comprises an obtaining module which is used for obtaining the current stage of a full life cycle of electromechanical equipment, and determining equipment variable parameters and equipment measurement parameters which need to be monitored at present; the offset module is used for acquiring the running state and the environmental parameters of the electromechanical equipment, and determining a measurement parameter offset value based on the running state and the environmental parameters; offset is carried out on the equipment measurement parameter based on the measurement parameter offset value, and an offset measurement parameter is obtained; the measurement module is used for determining corresponding parameter measurement equipment based on the equipment variable parameters; controlling parameter measurement equipment to measure equipment variable parameters of the electromechanical equipment according to the offset measurement parameters to obtain a parameter set; and the control module is used for analyzing the parameter set and controlling the operation of the electromechanical equipment based on an analysis result. According to the invention, the defects of inaccurate data measurement and resource waste in the current full life cycle management process are overcome.

The invention discloses a transmission housing end face distance measuring device, which relates to the technical field of transmission production equipment and comprises a measuring device rack and a measuring device slidably mounted on the measuring device rack, and a housing base is arranged below the measuring device. The measuring device comprises a mounting frame, a measuring sensor is mounted in the mounting frame, a contact screw mounting plate is movably arranged in the mounting frame, and a contact screw is arranged at the position, corresponding to the measuring sensor, of the contact screw mounting plate. The lower end of the mounting frame is connected with a reference surface contact plate, the contact screw mounting plate is located on the upper side of the reference surface contact plate, the lower side of the contact screw mounting plate is fixedly connected with a third connecting column, and the third connecting column slidably penetrates through the reference surface contact plate and then is connected with a measuring surface contact plate. The device can accurately measure the distance between the two end faces of the transmission housing, is high in measurement precision, is high in measurement efficiency, is good in measurement reproducibility, and can effectively guarantee the service life of a transmission.

The invention relates to the technical field of measuring equipment, in particular to a six-degree-of-freedom parallel mechanism pose high-precision measuring system and method.The six-degree-of-freedom parallel mechanism pose high-precision measuring system comprises a laser emission reference device, an array light spot feature target assembly, a parallel mechanism movable platform and a feature detection and recognition assembly, and the laser emission reference device is arranged at the top of the parallel mechanism fixed platform; the array light spot feature target assembly is arranged above the laser emission standard device and arranged at the bottom of the parallel mechanism movable platform, and the four corners of the bottom of the parallel mechanism movable platform are fixedly connected with the top of the parallel mechanism fixed platform through the six-degree-of-freedom parallel mechanism. The feature detection and recognition assembly is arranged at the bottom of the array light spot feature target assembly and used for recognizing light spot information and target feature information on the array light spot feature target assembly, processing of redundant data is reduced, the measurement period is shortened, and it is ensured that high-precision rapid measurement is achieved.

The invention relates to the technical field of length measurement, and particularly discloses a length measurement device based on laser interference, which comprises a laser measurement module, an air curtain channel module, an air curtain construction module and a channel adjustment module, the laser measuring module is used for transmitting and receiving laser, the optical path difference change is measured according to the interference principle, and the micro length change of the workpiece can be continuously and accurately measured in real time while the machining module carries out machining operation on the workpiece; a linear channel is formed between the laser head and the measuring reflector through the air curtain channel module, inert gas is continuously introduced into the channel through the air curtain construction module, and an air curtain atmosphere with stable laminar flow is formed, so that pollutants and interference factors such as oil mist, dust, cutting fluid splashing and hot air turbulence generated in a machining area are effectively blocked, and the machining precision is improved. Therefore, the measurement light beam is prevented from being interfered by environmental factors in the propagation process.

The invention discloses a complex space truss positioning system and method based on a three-dimensional coordinate acquisition technology, and relates to the technical field of truss positioning. The complex space truss positioning system and method based on the three-dimensional coordinate acquisition technology comprises the following steps: S1, three-dimensional modeling and pre-compensation; s2, constructing and dynamically calibrating a three-dimensional control network; s3, on-site preliminary measurement and data acquisition; s4, contour trajectory speculation and connection complementation; s5, performing dynamic multi-view measurement and data integration; s6, data analysis and positioning adjustment; measuring equipment is selected according to the characteristics of the truss, node coordinates are preliminarily measured and collected, shielded parts are recorded, interference of environmental factors is controlled, and the quality of basic measurement data is guaranteed. An image processing and mode recognition technology is utilized to analyze a contour track, connection and node positions of a shielding part are speculated in combination with structural characteristics, and verification is performed after mechanical analysis optimization, so that the measurement problem caused by shielding is effectively solved, and data integrity is improved.

The invention belongs to the technical field of precision part machining, and discloses a precision part machining precision error compensation technology, high-precision measuring equipment comprises a laser interferometer and a coordinate measuring machine, a numerical control system calculates the compensation amount of each axis of a machine tool according to a model and carries out dynamic adjustment, and an online tool measuring system comprises a tool compensation probe. The laser interferometer carries out interference measurement through reflection of a laser beam and a machine tool measuring part so as to obtain the measurement precision, and through cooperation of the laser interferometer, the coordinate measuring machine and the cutter compensation probe, the numerical control system calculates the compensation amount of each axis of the machine tool according to a model and carries out dynamic adjustment. The laser interferometer performs interference measurement through reflection of a laser beam and a machine tool measuring part, ensures parallelism and perpendicularity, checks error changes of the machine tool at different working temperatures, detects motion errors of the machine tool at different temperatures by using the laser interferometer, and compensates the errors according to the temperature changes.

The invention provides an ultrasonic surface density measuring method, an ultrasonic surface density measuring system and ultrasonic surface density measuring equipment, and relates to the field of ultrasonic measurement. Therefore, real-time signal compensation is carried out on the acquisition point offset caused by the movement of the object to be measured in the use process of the ultrasonic surface density measurement equipment, so that the measurement precision is remarkably improved, and the production efficiency is improved.

A light emitting device includes plural light emitting blocks, each including a light emitting element and a setting element that sets the light emitting element in a state of being able to be turned on, and a discharge path that includes a discharge element capable of controlling discharge in a case where the light emitting element is turned off and through which charges accumulated in a case where the light emitting element is turned on are discharged, in which the plural light emitting blocks and the discharge path are electrically connected in parallel.

A calibration unit comprises a first port which is arranged for being connected to a measurement device; a calibration module comprising at least three different calibration standards for calibrating the measurement device; and a switching module configured to connect the first port with one of the at least three different calibration standards of the calibration module. A daisy chain port is arranged for being connected to a further calibration unit, to an external power meter, or to a device-under-test, DUT. The first port is connectable to the daisy chain port. An internal power meter is arranged within a housing of the calibration unit. The first port is connectable to the internal power meter; or an internal impedance tuner. The first port is connectable to the internal impedance tuner.

The invention discloses a high-precision temperature measuring equipment correction system, and relates to the technical field of temperature measuring equipment correction, and the high-precision temperature measuring equipment correction system mainly comprises a hardware layer, an algorithm layer and an embedded layer which are electrically connected with one another. The hardware layer is used for acquiring temperature data, humidity data and pressure data; the hardware layer comprises a temperature sensor array, a humidity sensor, a pressure sensor and an analog-to-digital converter; the algorithm layer is used for correcting the temperature data according to the temperature data, the humidity data and the pressure data, and the algorithm layer comprises a data preprocessing module, a hybrid correction module and a dynamic compensation module; and the embedded layer is used for task scheduling and temperature data output. By implementing the high-precision temperature measurement equipment correction system provided by the invention, the correction precision, efficiency and reliability of the temperature measurement equipment can be improved.

The invention discloses a size measuring device for glass reinforced plastic pipe processing, relates to the technical field of glass reinforced plastic pipe size measurement, and solves the problems that the existing device can only measure the size and the supporting force is difficult to control by a mechanical centering method.The device comprises a measuring device base, an annular laser scanner is arranged on the top of the measuring device base, and a scanner centering assembly is arranged on the side of the measuring device base; a supporting and centering assembly is arranged in the pipeline in a sleeved mode and drives a conical pushing and extruding block through a servo motor, a threaded rod and the like, so that four sets of positioning and supporting rods synchronously abut against the inner wall of the pipeline to achieve centering, force is uniform, and deformation and slipping are prevented; the external trumpet-shaped alignment sleeve is matched with the rotating alignment ring to drive the laser scanning ring to be automatically aligned, defects of a visual alignment method are avoided, in addition, the supporting alignment assembly drives the pipeline to rotate, axial defects can be captured by laser, defect recognition is achieved, the precision is improved through double alignment, the size measurement and defect detection functions are achieved, and the application range of equipment is widened.

The embodiment of the invention provides an optical system and 3D measuring equipment, and relates to the technical field of machine vision, the optical system comprises a polarization regulation and control module and a polarization module, the polarization module is used for reflecting a light beam in a first polarization direction and transmitting a light beam in a second polarization direction, and the polarization regulation and control module is used for regulating the polarization direction. The polarization direction adjusting module is used for adjusting the polarization direction of the laser beam from a first polarization direction to a second polarization direction; a light beam in a first polarization direction of the incident system is reflected by the module to enter the polarization regulation and control module along a first direction, is reflected by the polarization regulation and control module to enter the polarization module along a second direction, and is transmitted from the polarization module. Through the embodiment of the invention, light path folding is realized, the size of the optical system is reduced, the working size of the 3D measurement equipment is further reduced, the 3D measurement equipment can be more suitable for a narrow and compact space, ambient light interference is reduced, and the application scene is expanded.

Disclosed are a single-arm electrocardiogram (ECG) signal measurement device and a single-arm ECG signal measurement method. The single-arm ECG signal measurement device includes a first sensing electrode, a second sensing electrode, a third sensing electrode, a fourth sensing electrode, a fifth sensing electrode, a sixth sensing electrode, and a computing circuit. The first sensing electrode, the second sensing electrode, the third sensing electrode, the fourth sensing electrode, the fifth sensing electrode, and the sixth sensing electrode receive physiological signals from six different positioning points located on an upper arm of a user. The computing circuit generates ECG signals according to the physiological signals, and generates a 12-lead ECG-like signal according to the ECG signals.

The invention discloses a digital assembling method and system for a steel truss girder, and the method comprises the steps: carrying out the scanning measurement of a to-be-hoisted steel member through multi-source measurement equipment, and obtaining three-dimensional point cloud data and feature point coordinates; and fusing the data through a registration algorithm, and constructing a component digital model. Acquiring an environment temperature, a component temperature and a supporting state during scanning; on the basis of the information, temperature deformation and self-weight deformation correction is carried out on the model, and a model for assembling is obtained; geometric information is extracted and compared with a design value, and a deviation table and modification suggestions are generated. Dynamically and virtually assembling the corrected model according to an actual hoisting sequence; and simulating stay cable tensioning in a preset stage, and calculating the internal force and deformation of the structure. After virtual hoisting, three-dimensional coordinates of a non-assembly end are calculated in real time, and comparison and guidance are carried out; and actually measuring the three-dimensional coordinates and the physical postures of the hoisted rod pieces for subsequent virtual assembly of the rod pieces. According to the method, the construction quality and efficiency are improved.

The invention provides a target contour reconstruction and in-plane track measurement method and system based on vision. The method comprises the steps that a polygon target is fixedly installed on a target to be measured, a camera is fixed for imaging, and a camera coordinate system is established; performing coarse precision matching on the target through a cross-correlation algorithm to obtain an ROI (Region of Interest), and iteratively updating a matching position in a time sequence video frame; sub-pixel-level resolution improvement and binarization segmentation are carried out on the ROI, and a target edge contour is extracted; performing linear fitting on the edge point set based on a gradient space point set clustering algorithm, and reconstructing a target contour; and converting the pixel displacement into a physical displacement amount, and calculating an attitude angle in the target plane based on the angular point position. According to the invention, the dynamic contour of the target is reconstructed by using the camera, and the in-plane displacement and attitude high-precision measurement is carried out; while high precision and high environmental adaptability are ensured, miniaturization, low power consumption and high efficiency of measurement equipment are realized.

This invention belongs to the field of engineering measurement technology, specifically a field measurement device for architectural design. The device includes a tripod with a total station mounted on top. A sliding cylinder shields the device from strong light, preventing ambient light from affecting the laser beam and improving the accuracy of laser beam identification and calibration. A conical column, with its conical base, inserts into the soil, enhancing stability during operation and reducing detection errors caused by device sway. A first spring improves adaptability to ground surfaces of varying hardness, enhancing the device's versatility. When the two sliding plates abut against each other, they form a relatively enclosed environment, further reducing the influence of the external environment on the laser beam and improving the accuracy of laser beam identification and calibration.

The invention discloses a rotor outer diameter measuring instrument, and belongs to the technical field of rotor outer diameter measuring equipment, the rotor outer diameter measuring instrument comprises a workbench, a rotor, an outer diameter measuring mechanism and a coaxiality measuring mechanism, the rotor is connected with an end part outer diameter measuring mechanism, and the end part outer diameter measuring mechanism comprises a mobile measuring support, a fixed measuring support, a clamp and two end part measuring assemblies. The movable measuring support is slidably installed on the workbench, the fixed measuring support is fixedly installed on the workbench, and the two end measuring assemblies are connected with the movable measuring support and the fixed measuring support respectively. The outer diameter measuring mechanism comprises a measuring frame, a second measuring head and a multi-axis moving assembly, the measuring frame is installed on the second measuring head in a sliding mode, the second measuring head is connected with the multi-axis moving assembly, and the multi-axis moving assembly is installed on the workbench; the coaxiality measuring mechanism comprises a third motor, a third screw rod, a synchronous rotating assembly and a measuring assembly. The measuring assembly is installed above the workbench and located between the movable measuring support and the third motor.

A system enables management of dispensable units by supporting functions such as retrieval, scheduled distribution, analysis, and notifications. To this end, a dispensable retrieval mechanism may be programmed to carry out blind retrievals of dispensable units using a retrieval strategy with a predetermined sequence of retrieval attempts (e.g., fixed or varying two-dimensional retrieval patterns), which may be open loop or closed loop. Techniques may also include the identification of dispensable units through optical sensors and weight measurement devices that can detect, e.g., a texture, a shape, and a size of dispensable units. Such identification can be used to program retrieval attempts by a retrieval robot and in the formulation of the retrieval pattern. Additionally, networked notification systems for dispensable units can be used for updating rules or schedules related to the dispensable units, or alerting users and remote resources of any potential misuse or hazards of the dispensable units.

The invention discloses a copper alloy wire heat treatment deformation detection method, and relates to the technical field of copper alloy wire detection, and the method comprises the following steps: transmitting a to-be-detected wire; performing laser irradiation and information receiving; processing and analyzing electric signals; real-time self-inspection of the laser measurement equipment is carried out; and vibration correction. According to the heat treatment deformation detection method for the copper alloy wire, an amplitude sensor senses and feeds back amplitude data during shaking, and after the amplitude data is processed, the influence of each vibration amplitude on deformation detection calculation of a wire body can be learned by adopting a neural network and a deep learning model; the influence value caused by each vibration amplitude is substituted into the deformation calculation of the wire rod body, so that the detection part when the wire rod body vibrates can be calculated and corrected, and the situation that the deformation calculation result of the wire rod body is inaccurate and secondary detection is needed due to vibration is avoided.

The invention discloses a non-interception type detector for measuring the beam position and the cross section of proton / heavy ion radiotherapy equipment, and belongs to the technical field of nuclear medicine and electronics crossing. Secondary particles (electrons or ions) obtained after ionization reaction of high-energy protons / heavy ions and residual gas molecules are used as signals, the signals are amplified to reconstruct the original position and cross section distribution of a beam, and the detector is a completely non-interception type detector and can be used as long-term online measurement equipment. According to the invention, the structure of the detector is systematically designed and optimized aiming at the position and section measurement of an extremely weak beam in proton / heavy ion radiotherapy equipment, a test is carried out on an experimental platform, a clear signal image can be obtained, the structure is compact, the performance is good, the work is stable and reliable, and the cost is low. The method is of great significance to debugging, operation and maintenance of proton / heavy ion radiotherapy equipment.

The invention discloses continuous laser thickness measuring equipment for coating a wet film and a dry film, and belongs to the technical field of laser thickness measuring devices, and the equipment comprises a conveying line which is installed on a frame, extends in a preset direction, and is used for bearing and conveying a bearing platform; the press-fit cleaning mechanism comprises fixing blocks arranged on the two sides of the top end of the frame, sliding grooves are formed in the fixing blocks, the fixing blocks are movably connected with sliding blocks, the top ends of the sliding blocks are connected to piston rods installed at the bottoms of first air cylinders, and the bottoms of the sliding blocks are connected to strip-shaped plates through first springs; the strip-shaped plates and the fixing blocks are integrally formed, and a pressing roller is movably connected between the sliding blocks. The technical problems that the circuit board is prone to moisture absorption in a high-humidity environment, the dielectric property is affected, the interlayer separation or layering risk is increased, and when the circuit board is covered with air impurity particles, the accuracy of thickness measurement work is also affected are solved.