68results about How to "Accurate measurement position" patented technology

The invention discloses an inertial navigation method applicable to AGV storage, which comprises the following steps of S1, building a navigation system; S2, reading magnetic marker data; S3, acquiring trolley offset data; S4, programming a route; S5, acquiring gyroscope angle; S6, correcting the angle; S7, reading RFID; S8, determining an operational mode; S9, controlling movement; and S10, repeating the steps S2-S9. According to the invention, the magnetic marker is adopted to replace a magnetic stripe and a two-dimension code, so that the cost is saved, and the defect that the two-dimension code is influenced seriously by dirty environment at the same time, and the trackless navigation can be realized; the system is accurate in measurement position, the positional accuracy can be +/-5mm, the angle accuracy is +/-0.1 degree, the navigation accuracy is high and can be +/-10mm and the navigation speed is 1m/s, and the resource is saved effectively.

A method for precisely measuring position of a part to be inspected at a part inspection station is provided. The method includes positioning a part having a part axis relative to a measurement axis at the part inspection station and scanning the positioned part with an array of planes of radiation so that the part occludes each of the planes of radiation over a measurement interval of the part to create a corresponding array of unobstructed planar portions of the planes of radiation. Each of the unobstructed planar portions contains an amount of radiation which is representative of a respective geometric dimension of the part. The method also includes measuring the amount of radiation present in each of the unobstructed planar portions to obtain measurement signals and processing the measurement signals to obtain a geometric measurement between the axes at the measurement interval. The geometric measurement may be a distance between the axes or angle between the axes. If the geometric measurement is outside an acceptable range of geometric values, the method may further include repositioning the part until the geometric measurement between the axes at the measurement interval is within the acceptable range of geometric values.

The invention provides a method of sampling precision measurement signals to achieve an accurate measurement position at a particular measurement time, such that the measurement accuracy is unaffected by the velocity of motion. The method involves sampling each signal during a predetermined sampling period such that a signal from one sensor is sampled first, a signal from a second sensor sampled second, etc., and then the signals are sampled in reverse order such that the first signal sampled is sampled last. These sampled signals are averaged and produce a precision measurement at a time measured at one-half of the sampling time. In addition, this method can be applied to the use of separate scale tracks where each scale track is alternately sampled, or alternatively, where one scale track is sampled in the middle of the sampling period of another scale track.

The present invention relates to a method and a device for muting a positioning reference signal (PRS) in a wireless communication system, in particular, a heterogeneous communication system, and to a method for measuring the position of a user equipment using same. In the heterogeneous communication system having one or more macro cells and one or more non-macro cells located inside each of the macro cells, the non-macro cells do not transmit the PRS separately, and do not transmit data but execute muting in a time-frequency resource area where one or more specific macro cells from the macro cells transmit the PRS. The present invention can be used to minimize the influence of interference between base stations of different forms in the heterogeneous communication environment, and promote enhancement of accuracy in measuring the position of the user equipment.

The invention discloses a testing method and equipment for intelligent antenna broadcast forming of a base station. The method includes firstly, compensating phase differences of each way between an output end of a power divider and an antenna output end of an intelligent antenna coupling disc to be uniform by adjusting numerical control phase shifters; secondly, correcting a phase between a radio-frequency unit and the intelligent antenna coupling disc to uniform phase differences of each channel; thirdly, determining calculation phase differences from receiving positions at all angles to be tested to each antenna within a base station antenna coverage; fourthly, compensating the calculation phase differences of all angles to phases of the numerical control phase shifters to acquire broadcast power of a frequency spectrograph at the angle when the base station transmits broadcast signals; and fifthly, using the power determined according to the angle and the broadcast power at the angle as a broadcast forming result. The testing method and the equipment for intelligent antenna broadcast forming of the base station is capable of avoiding external interfering signals and environmentally reflected and refracted signals, high in testing precision and accurate in corresponding relation among different testing positions and signal powers.

A railway installation monitoring system may include: a laser generator that is provided on a train; a camera that is operated in connection with the laser generator so as to be capable of monitoring a railway installation and of acquiring image information data that is measured; a three-dimensional image information conversion device that uses the image information data acquired by the laser generator and the camera and converts the data into three-dimensional image information; a position determination unit that determines the position of the railway installation to be measured; a signal processing device that sends an operating command for the laser generator or/and the camera; and an overall data processing device that processes, analyzes, interprets, or stores the image information data, the three-dimensional image information, or the data transmitted from the position determination unit.

The invention relates to a method for operating a measurement system containing a scanning probe microscope, in particular an atomic force microscope, and to a measurement system for examining a measurement sample using a scanning probe microscope and for optically examining said sample. In the method, an optical image of a measurement section of a measurement sample to be examined, said image being recorded with the aid of an optical recording device, is displayed on a display apparatus, a choice of a position in the optical image is detected, and, for a scanning probe measurement, a measurement probe which is configured for the scanning probe measurement is moved, using a movement apparatus which moves the measurement probe and the measurement sample relative to one another, to a measurement position, which is assigned to the selected position in the optical image in accordance with coordinate transformation, by virtue of the movement apparatus being controlled in accordance with the coordinate transformation, wherein a previously determined assignment between a coordinate system of the optical image and a coordinate system of a space covered by movement positions of the measurement probe and the measurement sample is formed with the coordinate transformation, wherein the movement positions comprise the measurement position.

An apparatus for determining measurement element positions, comprising a plurality of measurement elements; at least one trigger element corresponding to each element of the plurality of measurement elements; a positional encoder configured to register a position of each of the measurement elements when the trigger element is activated; and a controller, wherein the controller constructs a surface geometry model from the registered measurement element positions.

A position determining system (PDS)(100) or multiple parameters measurement system (MPMS)(300) particularly useful for translation and rotation measurement of objects having up to five degrees of freedom. A light source (122, 302) provides light beams (124, 304) into at least two channels. Each channel may include an interferometer (310), reflective target (110, 314), beam splitter (128, 312), detector (132, 316), and receiver (318). In concert, the detectors (132, 316) sense horizontal, vertical, and roll position and the receivers (318) sense longitudinal and yaw position change. Optionally, modulation can be imposed on the light beams (124, 304) and phase-sensitive synchronous demodulation used to enhance accuracy.

The invention discloses a method for measuring the electric energy loss of a high-energy-consumption smelting system and relates to the field of detection. The method includes the following steps that firstly, a sensor is selected and installed; secondly, a sampling period is determined; thirdly, sampling is carried out; fourthly, the total electric energy quantity of all measuring points is acquired; fifthly, an electric energy loss value is acquired; sixthly, the electric energy loss value is output. According to the method, professional sensors like a PT is selected, accurate current and voltage values of measuring positions are acquired, and a foundation is laid for improving the accuracy of electric energy loss measurement; then, data are collected through a high-frequency analog-digital converter, the spline interpolation error compensation algorithm is utilized, and therefore a more accurate measured value is acquired, the total electric power and the total electric energy quantity value of all the measuring points can be calculated accordingly, and accurate electric energy loss conditions can be acquired according to an electric energy loss formula. The method is convenient to operate and has high market promotion and application value.

The present invention provides a sensor installation structure which remarkably facilitates installation of a plurality of sensors disposed on the inlet pipe side of an engine and enables each of the sensors to be positioned in an accurate measuring position. The sensor module unit is integrally provided with a plurality of sensors necessary for fuel supply control and intake-air flow rate control in an internal-combustion engine, and has an intake-air temperature sensor holding portion installed with an intake-air temperature sensor, at least one of a throttle position sensor holding portion installed with a position sensor to detect an opening angle of a throttle valve in an intake throttle apparatus and an intake-air pressure sensor holding portion installed with an intake-air pressure sensor, and a unit main body that integrally accommodates the intake-air temperature sensor holding portion, and at least one of the throttle position sensor holding portion and the intake-air pressure sensor holding portion to position in respective predetermined arrangement positions in the unit, whereby each of the plurality of sensors is positioned in a predetermined measuring position in the throttle apparatus when the unit main body is installed in the vicinity of a throttle axis of the intake throttle apparatus.

PCT No. PCT/JP97/01878 Sec. 371 Date Mar. 4, 1998 Sec. 102(e) Date Mar. 4, 1998 PCT Filed Jun. 3, 1997 PCT Pub. No. WO98/01965 PCT Pub. Date Jan. 15, 1998In order to measure the leakage power of a communications signal using a burst signal, with respect to adjacent channels, an input signal containing a modulated signal is subjected to A/D conversion in an A/D converter 23 and then written into a waveform memory 25. The input signal read from the waveform memory is demodulated to digital data by means of a demodulating section 29. An extraction region calculating section 33 detects the position of a synchronizing word in the digital data demodulated, and determines the extraction region AR of the input signal stored in the waveform memory 25. One filter 35a or a plurality of filters 35 allow passage of the signal components in the frequency bands of the channels adjacent to the main channel. Switching sections 34 and 28 supply the signals in the extraction region determined, which are included in the input signal stored in the waveform memory 25. One power measuring section 35a or a plurality of power measuring sections 35 measure the power of each signal component which has passed through one filter.

The invention discloses a comprehensive detection device for geometric parameters of a conical ring. The device is applicable to comprehensively detecting various geometric parameters such as the conical degree, the conical height, the large-end (or small-end) diameter and the like of the conical ring (an inner cone), and mainly, functionally and structurally comprises a large movable measuring head, a small movable measuring head, a mandrel, a spring, a linear bearing, a positioning pin, a CCD ((charge coupled device), a displacement sensor and a contact detection sensor. The diameter difference of the two measuring heads is a fixed value, a detected part is movable while a measuring device is fixed in measurement so that measuring efficiency is greatly improved, and by the aid of the linear bearing and the spring, the detected part and the measuring heads can be placed in correct relative positions in measurement, so that measuring errors can be greatly decreased and the measuring efficiency is improved. The three geometric parameters including the conical degree, the conical height and the large-end (or small-end) diameter of the detected part can be detected by means of one-step operation, so that the measuring efficiency is equivalently improved by a few times. Besides, the device is simple in structure and convenient in operation, and the requirement on the technical level of operators is quite low.

The invention relates to a medical device, in particular to a hospitalizing chair. A weight measuring mechanism is arranged below the chair; the chair is provided with a handle and a temperature measuring mechanism; the handle is provided with a blood pressure and pulse measuring mechanism and a fingerprint collector; and the temperature measuring mechanism, the blood pressure and pulse measuring mechanism and the fingerprint collector are connected to a computer with a data wire. The chair can confirm the identity of a patient and call out information such as a medical record (including the former assay inspection result, imageology picture and treatment condition), and the like, and is good for solving the problem of the low efficiency in the traditional method.

The invention relates to a positioning technology, in particular to a mobile terminal supporting indoor positioning. The invention aims at providing a mobile terminal provided with an indoor positioning function. The mobile terminal supporting indoor positioning, which is provided by the invention, comprises a mobile terminal body, wherein the mobile terminal has a wireless communication function, the mobile terminal further comprises at least three distance measurement antennas, a pointing module and a processing module, all distance measurement antennas are positioned on the same horizontal plane and are used for measuring distances between the distance measurement antennas and the wifi (Wireless Fidelity) equipment; the pointing module has a direction pointing function; the processing module is used for computing to obtain a relative position of the wifi equipment relative to the mobile terminal according to the distances, measured by the distance measurement antennas, between the wifi equipment and the distance measurement antennas and obtaining relative dimensional orientation information of the wifi equipment relative to the mobile terminal according to the absolute orientation, which is measured by the pointing module, of the wifi equipment and the mobile terminal. The mobile terminal supporting indoor positioning is suitable for positioning of the mobile terminal.

An improved air volume measuring device based on an L-shaped pitot tube comprises a pitot tube composed of a U-shaped tube and an L-shaped tube. A cross-shaped tube is arranged at the rear end of the L-shaped tube, the two adjacent ends of the cross-shaped tube are connected with the static pressure end and the total pressure end of the U-shaped tube respectively, the U-shaped tube is filled with liquid, a strip-shaped gradienter is arranged on the L-shaped tube, and the strip-shaped gradienter is parallel with the L-shaped tube. The upper end of the cross-shaped tube is connected with the static pressure end of the U-shaped tube, a plummet is hung to the lower end of the cross-shaped tube, the lower portion of the L-shaped tube is movably connected with a guide rail through a slider support, and the slider support moves in the guide rail to make the L-shaped tube keep horizontal. The improved air volume measuring device solves the personal error problem caused by the fact that the L-shaped tube is held by hand, and meanwhile relevant improvement is made for solving the measuring point positioning problem in the air volume measuring process, data measuring accuracy is guaranteed, workloads of personnel are reduced, and human resource cost is reduced.

The present invention relates to a method for retrieving predetermined locations in sewer and pipeline systems (7) after the application or the deposition of a layer of material, in which a carrier vehicle having a microwave sensor (1) is used which emits microwave signals and receives backscattered microwave signals, having the following steps. In the method a first run is conducted inside the sewer respectively the pipeline system (7) is conducted before the application or the deposition of the layer of material, with in at least one section of said sewer respectively pipeline system a first temporal signal profile of said backscattered microwave signals being recorded and the sought locations being marked in the first signal profile. After the application or the deposition of the layer of material, a second run is conducted in which a second temporal signal profile of said backscattered signals is recorded and the current position of the carrier vehicle in the sewer respectively the pipeline system (7) relative to the sought locations being determined by comparison with said first signal profile. The method permits certain retrieval and sufficiently accurate localization of house connection or other sites which are covered by inliner pipes or deposits.

The invention discloses a method for monitoring rush of confined water in ultra-large and ultra-deep foundation pit excavation. The method comprises the following steps that S1, a hole is drilled in a foundation pit; S2, a device is fixed and arranged; S3, a drainage pipe is fixed; S4, the confined water is measured; S5, drainage is treated; and S6, a deformation value of a pit bottom heave of the foundation pit is measured. According to the method, the confined water can be intelligently monitored, a stratum containing the confined water can accurately reached, a heave value of the deep foundation pit can be measured, and the method has the advantages of simplicity in operation, low manufacturing cost, intelligence and the like.