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135results about How to "Accurate orientation" patented technology

Method for carrying out panoramic positioning and orientation by utilizing mobile phone device sensor

The invention discloses a method for carrying out panoramic positioning and orientation by utilizing a mobile phone device sensor. The method comprises the following steps: collecting a rotation angles, on three axles of an equipment coordinate system, of a mobile phone body relative to an own initial position through a gyroscope built in a mobile phone, and acquiring data through a direction sensor built in the mobile phone so as to obtain direction data, in a word coordinate system, of the mobile phone body, and weighting and fusing the rotation angles and the direction data to carry out correction; generating corresponding textures according to the corrected visual direction data, rendering and displaying the corresponding textures to the inner surface of a VR ball model, putting a camera model at the center of the ball mode, taking the camera model as a human eyeball, taking the inner surface of the VR ball model as a display screen, and synchronously changing the camera orientation according to correction direction of mobile equipment. According to the method disclosed in the invention, the problem of mobile phone gyroscope drifting is solved, the problem of upside-down rotation of virtual VR world is solved, furthermore, the orientation of equipment can be smoothly and accurately positioned, and an immersion type impression effect of panoramic videos can be obtained.
Owner:杭州映墨科技有限公司

Raster Moire striped wavelet fine dividing method and raster displacement measuring apparatus

InactiveCN103604373AMeet dynamic randomnessRandomUsing optical meansNumerical controlMeasurement device
The invention provides a raster Moire striped fine dividing method and apparatus, and belongs to the field of raster displacement measuring. A conventional raster sensor has the advantages of large measuring range, high environment adaptation capability, low cost and the like, and is widely applied to the industries of precision displacement measuring, digital display and numerical control, large-stroke precision positioning, precision processing, microelectronics and the like. At present, higher requirements for a wide-range nanometer level and the like of raster displacement measuring is brought forward in the various industries. When a raster sensor operates, output waveform of the raster sensor is quite complicated. The raster sensor does not necessarily move uniformly during a measuring process, and especially in a starting, stopping and inverting process, signals are random. According to the randomness of the raster signals, a wavelet fine dividing method is brought forward, high-speed high-precision synchronization data acquisition is performed on four paths of More striped signals outputted by a raster, after equal-magnitude amplification and nonopiate correction pretreatment is performed on the raster signals, wavelet phase modulation and phase extraction treatment is carried out, and finally the signals are converted to displacement.
Owner:SHENYANG POLYTECHNIC UNIV

Preparation method of 3D printed carbon fiber reinforced aluminum matrix composite

ActiveCN109468550APrecise OrientationExquisite OrientationAdditive manufacturing apparatusCarbon fibersAluminum composites
The invention relates to a preparation method of a 3D printed carbon fiber reinforced aluminum matrix composite. The preparation method aims at solving the problems that in a traditional technology, carbon fiber is not uniformly dispersed in an aluminum matrix and are agglomerated; and in addition, the performance of the composite is greatly improved by controlling the arrangement mode of the carbon fiber in the aluminum matrix. The preparation method comprises the following steps that firstly, the arrangement mode of the carbon fiber is designed; secondly, printing paste is prepared; thirdly,a 3D printed carbon fiber/aluminum composite billet is obtained; and fourthly, the billet is subjected to sintering forming. According to the preparation method of the 3D printed carbon fiber reinforced aluminum matrix composite, the carbon fiber is subjected to shearing inducing through a 3D printing technology, precise and exquisite directed arrangement of the carbon fiber in aluminum is achieved, and compared with a confusion state in a traditional preparation technology, the performance of the material can be improved greatly; a unique two-stage sintering technology can also help the performance to be improved; and air pores in the material are decreased, the material is made to become more compact, and the carbon fiber/aluminum matrix composite is made to have the more excellent performance.
Owner:JILIN UNIV

Apparatus for conveying containers with non circular cross section

The invention discloses an apparatus (1) for conveying containers (2) with non circular cross section, comprising at least two input conveyors (3a, 3b) through which at least two distinct conveyance flows reach the apparatus; a plurality of star-wheel (4a, 4b, 5, 6) for receiving the containers (2) from the input conveyors (3a, 3b) and release them on a single output conveyance flow, said plurality of star-wheel (4a, 4b, 5, 6) comprising at least a re-uniting star-wheel (5), on which the two distinct conveyance flows are re-united, and an auxiliary star-wheel (6) cooperating with said re-uniting star-wheel (5); guiding means for directing the containers (2) when they reach an area where multiple flows merge into a single conveyance flow, said merging area being located between said re-uniting star-wheel (5) and said auxiliary star-wheel (6). Said guiding means comprise first engaging means (50) mounted on the re-uniting star-wheel (5) and acting on containers housed in corresponding pits of the auxiliary star-wheel (6) to keep them correctly oriented into said pits before they are transferred on the re-uniting star-wheel (5); second engaging means (60) mounted on the auxiliary star-wheel (6) and acting on containers housed in corresponding pits of the re-uniting star-wheel (5) to keep them correctly oriented into said pits during the rotation of the re-uniting star-wheel (5). Said first and second engaging means (50, 60) are active when the containers (2) reach said merging area.
Owner:SIDEL HLDG & TECH

Parking space detecting method and parking space detecting system

ActiveCN108732573AAccurately determine the size of the spaceImprove accuracyAcoustic wave reradiationWave detectionParking space
The invention discloses a parking space detecting method and a parking space detecting system. The parking space detecting method comprises the following steps of acquiring a parking space length L3 which is detected by an ultrasonic module; acquiring a distance d which is detected by the ultrasonic module and is between a vehicle and the parking space; and acquiring an actual parking space lengthL according to a mapping relation among a parking space length L3, the distance d and the actual parking space length L; wherein the mapping relation along the parking space length L3, and the distance d and the actual parking space length L is acquired through an image acquiring mode. According to the parking space detecting method and the parking space detecting system, through adding the mapping relation between the actual parking space length and the detected parking space length based on ultrasonic wave detection, correction of the detected parking space length can be realized, thereby accurately determining a specific position of an obstacle and the particle spatial size of the parking space. Compared with a technical solution in prior art, the parking space detecting method and theparking space detecting system have an advantage of greatly improving parking space detecting accuracy.
Owner:武汉市路畅智能科技有限公司 +1

Fingerprint chip electrical performance testing device

ActiveCN108051727AHigh separation and feeding efficiencyAccurate orientationElectronic circuit testingElectricityTest efficiency
The present invention relates to a fingerprint chip electrical performance testing device. The fingerprint chip electrical performance testing device includes a testing system, a feeding system, and amaterial collection system; the feeding system includes a tray separating and conveying device, a plurality of tray positioning devices, a fingerprint chip number identification device, and a material collection system, wherein the tray separating and conveying device is provided with two tray delivering conveyor belts, the plurality of tray positioning devices are arranged between the two tray delivering conveyor belts, the fingerprint chip number identification device is provided with a machine vision system located above the first tray positioning device, the material collection system isprovided with an adsorption mechanism located above the last tray positioning device; and the test system includes two test devices and material taking devices, wherein the two test devices are arranged symmetrically outside one side of the tray separating and conveying device, and the material taking devices are located at the test devices and adsorption devices located above the other tray positioning devices. The fingerprint chip electrical performance testing device can automatically feed, transfer and convey fingerprint chips and has high test efficiency.
Owner:HANGZHOU CHANGCHUAN TECH CO LTD

Navigation system of deep sea submersible vehicle and data fusion method for state switching of deep sea submersible vehicle

The invention discloses a navigation system of a deep sea submersible vehicle and a data fusion method for state switching of the deep sea submersible vehicle and belongs to the technical field of underwater navigation positioning. The deep sea submersible vehicle can switch high precision and low precision working states according to different working demands. The state information can be directly transferred to the next state. But as the system is resolved by inertial navigation, errors are not accumulated. In order to solve the error accumulating problem, an adaptive neuro-fuzzy inference system (ANFIS) is established to fuse GPS data and INS data. When the deep sea submersible vehicle floats to a water level to receive a GPS signal, the ANFIS is trained by adopting GPS data and INS data, so that an error relationship between the INS resolving position and GPS positioning is established; when the deep sea submersible device dives underwater to work, the position is resolved by meansof INS (Inertial Navigation System) data and data trained by the ANFIS. The ANFIS is clear in concept, can solve the problem of underwater losing lock of the GPS signal, and improves the positioningprecision of the navigation system of the deep sea submersible vehicle in underwater working greatly.
Owner:SOUTHEAST UNIV

Intelligent positioning guiding device and method for pile foundation construction, and engineering management method

The invention belongs to the technical field of foundation construction, and particularly relates to an intelligent positioning guiding device and method for pile foundation construction, and an engineering management method. The intelligent positioning guiding device for pile foundation construction comprises an outer-layer pile casing, an inner-layer pile casing, a position adjustment mechanismand a positioning mechanism; and position data information of the inner-layer pile casing is obtained through the positioning mechanism, and the adjustment action of the position adjustment mechanismis controlled through the position data information. Accurate positioning of pile foundation guiding and positioning in holes of a reinforcement cage are achieved, the drilling precision of cast-in-place pile construction and reinforcement cage hoisting and lowering vertical precision are improved, potential safety hazards that during conventional cast-in-place pile construction, a formation soilbody is uneven in hardness, thus a drilled hole is deflected, a pile body is not vertical, the lowering position of the reinforcement cage is not accurate, consequently the pile body is deflected, andstress is uneven are avoided, the construction quality is guaranteed, and the management efficiency is improved.
Owner:FUJIAN LUGANG GRP CO LTD

Flip screen printing device of battery packaging line

The invention discloses a flip screen printing device of a battery packaging line. The flip screen printing device comprises a frame, a conveying roller set, a conveying device connected with a conveying section, a flipping mechanism, a clamping mechanism and a screen printing device body. The flipping mechanism is rotatably mounted on the frame and flips edge-on batteries by 90 degrees to convey the same to the conveying section of the conveying roller set. The clamping mechanism is mounted on the frame and can clamp the battery stopped on screen printing station from two sides. The screen printing device body is mounted on the frame and comprises an upright fixedly arranged on the frame, a vertical sliding seat, a horizontal sliding seat, a mounting seat, a first scraper component and a second scraper component, and the first scraper component and the second scraper component are respectively connected with a first scraper driving device and a second scraper driving device and are opposite in horizontal operation direction. By the arrangement, the batteries can be rapidly and accurately flipped, screen printing can be rapidly performed on the surfaces of the batteries, so that screen printing efficiency of the batteries can be greatly improved.
Owner:蚌埠航宇知识产权服务有限公司
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