191 results about "Scale measurement" patented technology

The present invention provides a true-scale, coordinate-matched, linked in real-time, dual three-dimensional/two-dimensional visual display/viewer. The display simultaneously shows a 3D digital image and an associated 2D digital image of a selected drawing. The display of the present invention allows a user to visualize an asset's location, surrounding environment and hazards and true scale structural details for interior or external structural scenes. Using the display and associated tools, the user can obtain real-time information of an environment, true-scale measurement, plan ingress/egress paths, shortest paths between points and the number of doorways in a structure and track objects within the displayed environment. The intelligence gained using the tools and 3D/2D display may be used and further manipulated by a single user or may be distributed to other users.

Rapid spectrum assay of multiple samples with infrared light is made possible by devices and methods that increase total light throughput. Multiple wavelength scan with Fourier analysis is combined with large numbers of sample wells located within infrared light compatible solid materials. In particular, very large scale measurement devices and systems for their use are fabricated from lithography and other techniques used for semiconductor processing.

The invention discloses an infrared cavity ring-down spectroscopy trace gas detection method based on quantum cascade laser; comprising the following steps: using a tunable quantum cascade laser as alight source, and selecting measuring waveband and wavelength scan step length aiming at spectrum line characteristic of the gas to be detected; respectively measuring the cavity ring-down time of each wavelength in the cavity with absorption or without absorption by cavity ring-down technique, and calculating the gas absorption coefficient of corresponding wavelength so as to obtain a relation curve that is an absorption spectrogram of the measured gas absorption coefficient and toned laser wavelength. The spectrogram is contrasted with spectrum line characteristic of corresponding gas in HITRAN database, thereby being capable of analyzing and determining weather the measured gas contains the predetermined gas component; the absolute concentration of the gas to be measured can be calculated and obtained and the absolute concentration of the gas to be measured can be measured through scaling measurement by using absorption peak wavelength of the absorption spectrum as the best detection wavelength and the relation among the gas absorption coefficient of the wavelength, the absorption cross section and concentration. The method has high measuring sensitivity and high property of resisting interference so that the fast and exact on-line analysis and detection of multiple trace gases are easily realized.

Embodiments of the present invention provide a three dimensional model object, a method of producing the three dimensional model object, and a kit comprising the three dimensional model object and a scaled measurement device. The method in accordance with the present invention includes surveying a constructed structure which is georeferenceable in the real world, obtaining spatial data associated with the constructed structure, generating a digital three dimensional model of the constructed structure in a computer, and producing a physical model object with accurately surveyed as-built data of the constructed structure. The physical model object of the constructed structure can incorporate, on its surface, surveyed and measured useful real world intelligence, such as dimensions, georeference data, or orientation, associated with the constructed structure.

Disclosed here is a method for measuring the kinetics (i.e., the molecular flux rates—synthesis and breakdown or removal rates) of a plurality of proteins or organic metabolites inn living systems. The methods may be accomplished in a high-throughput, large-scale automated manner, by using existing mass spectrometric profiling techniques and art well known in the fields of static proteomics and static organeomics, without the need for additional biochemical preparative steps or analytic/instrumental devices.

A guidewire or section thereof, that has a core member or the like with a plurality of contiguous tapered segments having taper angles that are configured to produce a linear change in stiffness over a longitudinal portion of the device. The device may also have a core section with a continuously changing taper angle to produce a curvilinear profile that is configured to produce a linear change in stiffness of the core over a longitudinal portion of the device. An embodiment has a plurality of radiopaque elements that may be intermittent, continuous or in the form of a helical ribbon for scaled measurement of intracorporeal structure under fluoroscopic imaging. Another embodiment has at least one layer of polymer over the distal end of the device.

The invention relates to a fixed desktop maintenance system based on gray scale measurement, which comprises a fixed desktop, wherein the fixed desktop is arranged above the table legs and adopts a glass structure and is used for providing a place for a user to use the desk; a CCD shooting device, wherein the CCD shooting device is used for carrying out image data induction on the desktop to output corresponding field desktop images; a gray scale judging device, wherein the gray scale judging device is used for receiving a block fitting image, calculating an average gray scale value of the block fitting image based on the gray scale values of all pixel points of the block fitting image, and comparing the average gray scale value with a preset gray scale value, and when the average gray scale value is smaller than or equal to the preset gray value, emitting a cleaning-required signal; a cleaning driving device, wherein the cleaning driving device is arranged near the fixed desktop, is connected with the gray scale judging device, and is used for carrying out instant cleaning operation on the fixed desktop when the cleaning-required signal is received. By using the device, the self-adaptive cleaning operation of the desktop is realized.

The invention discloses an ore scale measurement method based on deep learning and an application system. The method comprises the following steps: obtaining an ore block image; image preprocessing: processing the implemented ore block image into a marked image, and dividing the marked image subjected to processing into training sample boxes and test samples; removing the abnormal marked image data; training a preset RetinaNet target recognition network by using the processed training sample; inputting the test sample to a target identification network to obtain a target identification result,and calculating the size of the ore; the invention discloses an ore scale measurement method based on deep learning and an application system. The RetinaNet target recognition network is trained by adopting a labeled ore image sample; the trained network model is obtained to be used for classifying and positioning the ore blocks, the real sizes of the ore blocks are calculated, complex features do not need to be extracted manually, the detection efficiency is high, and the problem that efficiency is low in traditional ore scale measurement is solved.

The apparatus thereof comprises: a flexible Rogowski coil used for making the pulse current measurement for the current carrying conductor under test; a integrator used for making integration restore for the signals outputted from the flexible Rogowski coil in order to get the analog signals which is proportional with the derivate of the pulse current under test; a data sampling module used for making analog modulation for the analog signal outputted from the integrator in order to get discrete sampling signals; a A/D converter used for converting the analog signals to the digital signals; a CPU used for processing the data outputted from the A/D converter in order to get the pulse signal under test; a radio communication module used for making communication; a GPS module used for demarcating the clock of the CPU.

Systems and methods for minimizing performance degradation due to component mismatch in the feedback path of a digital PWM amplifier feedback loop. One embodiment comprises a digital pulse width modulated (PWM) amplifier with feedback. The amplification subsystem receives a digital audio signal and produces an analog output signal. The feedback loop produces a feedback signal based on the filtered analog output signal and modifies the digital audio signal based on the feedback signal. The feedback loop includes a filter configured to filter the analog output signal and correction circuitry configured to correct component mismatch errors introduced by the filter. In one embodiment, the correction circuitry receives a measurement of a power supply voltage, multiplies the measured voltage by a gain and adds the scaled measurement to the feedback signal to correct for the component mismatch errors.

The invention provides a truck scale unattended operation anti-cheating intelligent weighing system. The system is composed of RFID tags, an RFID reader-writer, a truck scale, a barrier gate handrail, a main control computer, a truck scale measurement management system installed in the main control computer, a long-distance microwave automatic identification subsystem, a voice command and control system and a measuring security system. Through the system and weighing method, the management systems of truck scales of enterprises are enhanced, using and weighing inaccuracy of fake-licensed trucks are avoided, real-time data can be saved, management staff can conveniently master the weighing condition in time and carry out the check work, various man-made errors and man-made loopholes can be stopped, accuracy of weighing measurement data is guaranteed, the whole weighing measurement process can be better monitored in real time, and various violation phenomena are avoided and stopped.

A guidewire or section thereof, that has a core member or the like with a plurality of contiguous tapered segments having taper angles that are configured to produce a linear change in stiffness over a longitudinal portion of the device. The device may also have a core section with a continuously changing taper angle to produce a curvilinear profile that is configured to produce a linear change in stiffness of the core over a longitudinal portion of the device. An embodiment has a plurality of radiopaque elements that may be intermittent, continuous or in the form of a helical ribbon for scaled measurement of intracorporeal structure under flouroscopic imaging. Another embodiment has at least one layer of polymer over the distal end of the device.

The invention relates to a method for estimating state of a distribution network for supporting large-scale current measurement, and belongs to the automatic dispatching field of power systems. The method comprises the following steps of: squaring a branch head end power and a branch current amplitude to obtain an evaluated variable, and establishing a new state estimation model of an exponentialtarget function according to a power grid model of an actual power grid and real-time measurement data; and estimating the branch head end power and the branch current amplitude by adopting a Lagrangian multiplier method so as to calculate active power and passive power of equipment such as a circuit, a transformer, a generator, a load and the like. The method can directly establish measurement equations for branch current amplitude measurement, branch power measurement, node voltage measurement and injection power measurement, does not need measurement conversion, does not introduce measurement conversion errors, is convenient to implement, and has high calculation efficiency.

The invention relates to the field of heat flux measurement, in particular to a round chaff type large-scale high-temperature heat flux sensor. The invention solves the problems that the heat sinking body of the existing round chaff type heat flux sensor is difficult to realize constant temperature, and the like. The round chaff type large-scale high-temperature heat flux sensor comprises a shell with a bottom cover and a heat sinking body, wherein the heat sinking body is composed of a main body and a columnar boss arranged at the center of the top part of the main body, and the top part of the shell is provided with a through hole for inlaying the columnar boss of the top part of the heat sinking body. The columnar boss is inlaid with a round chaff, and the center and the edge of the round chaff are respectively inlaid with lead wires forming thermocouple with the round chaff. The columnar boss is externally sheathed with an adiabatic ring arranged between the main body of the heat sinking body and the shell, and the shell is composed of a tubular shell body and a ceramic top cover. Two disk-shaped ceramic supports are stacked between the bottom part of the main body of the heat sinking body and the bottom cover of the shell, and air adiabatic layers are respectively arranged between the two disk-shaped ceramic supports, between the top disk-shaped ceramic support and the bottom part of the heat sinking body and between the side wall of the main body of the heat sinking body and the inner wall of the shell. With reasonable and optimized structure, the round chaff type large-scale high-temperature heat flux sensor can work for a long time in the high-temperature environment to realize large-scale measurement.

The invention discloses an inertial auxiliary GPS/BDS fusion large-scale measurement device and method for quickly measuring a land parcel. The inertial auxiliary GPS/BDS fusion large-scale measurement device for quickly measuring a land parcel comprises a strap-down inertial navigation module(3), a GNSS OEM board card (2), a handhold notebook control terminal(100) and a FPGA central board card (4); the land parcel measurement method integrates continuous satellite signal tracking and inertial navigation location output, and is based on second pulse signal to realize data synchronization and integration; carrier wave phase observed values are adopted for tight combination location resolving; inertial auxiliary GPS/BDS fusion ambiguity resolving is realized; and a partial ambiguity fixing strategy is adopted which helps increase the success rate of ambiguity fixing. By use of the method, the location precision and reliability of the system in shielding regions and half-shielding regions are substantially increased. The method can be applied in various land parcel on-site measurement environments and can increase the work efficiency of a land parcel measurement.

The invention relates to a load cell, which can return and compensate influence of an axle center of the load cell deviated from centrifugal force direction. The load cell comprises a casing in which a weighing sensing unit, a inclination angle sensing element, a storage unit and a calibration and deflexion compensation operation unit are arranged at least, and a data transmission interface unit. The load cell measures weight of object by a electric connection way and outputs a digital signal representing practical weight. A return and self-compensation method of the load cell includes measuring a included angle theta of axle center direction of the load cell and centrifugal force direction by utilizing the inclination angle sensing element, measuring weight of object by utilizing the weighing sensing unit to generate a sensing value Wr, calculating Wr/costheta to obtain a correction value W by utilizing the calibration and deflexion compensation operation unit, and respectively outputting digital signals representing included angle theta and deflexion correction value W through the data transmission interface. The invention can greatly increase precision of large-scale measurement equipment such as loadometer and tank scale, and simplify correction and maintenance work of pound weight equipment.

A process is provided for graphically guiding a user of a capture device (e.g., smartphone) to more accurately capture a series of images of a building. Images are captured as the picture taker moves around the building—taking a plurality (e.g., 4-16) of images from multiple angles and distances. Before capturing an image, a quality of the image may be determined to prevent low quality images from being captured or to provide instructions on how to improve the quality of the image capture. The series of captured images are uploaded to an image processing system to generate a 3D building model that is returned to the user. The returned 3D building model may incorporate scaled measurements of building architectural elements and may include a dataset of measurements for one or more architectural elements such as siding (e.g., aluminum, vinyl, wood, brick and/or paint), windows, doors or roofing.

A process is provided for guiding a capture device (e.g., smartphone, tablet, drone, etc.) to capture a series of images of a building. Images are captured as the camera device moves around the building—taking a plurality of images (e.g., video) from multiple angles and distances. Quality of the image may be determined to prevent low quality images from being captured or to provide instructions on how to improve the quality of the image capture. The series of captured images are uploaded to an image processing system to generate a 3D building model that is returned to the user. The returned 3D building model may incorporate scaled measurements of building architectural elements and may include a dataset of measurements for one or more architectural elements such as siding (e.g., aluminum, vinyl, wood, brick and/or paint), windows, doors or roofing.

The invention discloses an aircraft skin clearance and scale measurement method based on parallel line structured light. The method is characterized by comprising the following steps: 1) calibrating acamera internal parameter and a structured light plane parameter; 3) enabling a camera to collecting a structured light image, and extracting clearance scale feature point of the aircraft skin in thestructured light stripe image, and recording the feature point 8-neighborhood gray information; 3) converting the feature point two-dimensional coordinate into a three-dimensional coordinate by usinga camera calibration result and a structured light plane calibration result; and 4) computing the clearance and scale value by using different methods according to the clearance and scale feature point 8-neighborhood gray information. The measurement method disclosed by the invention has the advantages as follows: 1) adopting a new calibration board to realize the synchronous calibration of the camera and the structured light plane, and improving the structured light measurement system calibration efficiency; and 2) considering the structured light stripe local geometric feature when computing the clearance and scale, improving the applicable range of the line structured light measurement system, and reducing the measurement error when being applied to the complex contour clearance scale.

The invention discloses a dual-band channel multiplexing small-scale measurement and control data transmission system which comprises an overpay receiving antenna, a first transmitting antenna, an overpay second transmitting antenna, a response communication module, a first power amplifier, a second selective switch and a transmitter module. The overpay receiving antenna receives multi-channel radio signals. The first transmitting antenna and the overpay second transmitting antenna respectively enable the multi-channel radio signals to radiate into space by using the frequency of a second frequency range and the frequency of a first frequency range. The response communication module selects the multi-channel radio signals and outputs multi-channel remote signals after being modulated, and at the same time, receives first remote metering/data transmission signals, and outputs second output signals after correlation and modulation. The first power amplifier works and enables power of the second output signals to be amplified at the first frequency range. The second selective switch receives the second output signals with the amplified power and outputs the second output signals to the overpay second transmitting antenna. The transmitter module receives second data transmission signals and transmits the data transmission signals after the data transmission signals are amplified to the first transmitting antenna.

The invention relates to a management method and a system thereof for mass electricity utilization information collection data. The management method includes a data storing method and a data extraction method, different storage targets are assigned for different data through a database or a distributed storage scheduling module, and data storage and extraction is performed according to a strategy. The system comprises an application server, the distributed storage scheduling module, a storage service sub-module and the database, the application server is respectively connected with the distributed storage scheduling module and a data size server, and the distributed storage scheduling module is connected with the storage service sub-module. By means of the management method and the system thereof for mass electricity utilization information collection data, high expansibility of the system is achieved with low costs, great conveniences are provided in terms of system expansion and the like, and problems of high costs and performance bottleneck caused by processing of large-scale measurement data through independent use of a relational database and poor instantaneity caused by processing of large-scale data through independent use of a distributed file system in an electricity utilization information collection system can be solved.