32results about How to "Guaranteed scanning accuracy" patented technology

The present invention relates to a method for scanning a projective capacitive touch panel including: A. scanning each first-axis electrode arranged along a first-axis and each second-axis electrode arranged along a second-axis, then obtaining the first-axis electrode and the second-axis electrode whose self capacitance changes; B. detecting the mutual capacitance at each intersection between the first-axis electrode and the second-axis electrode whose self capacitance changes to determine whether the mutual capacitance changes, then the area where the mutual capacitance changes being taken as a touched area. The present invention also relates to a storage medium storing instructions of implementing above method and an apparatus that implements the above method.

The invention relates to a multi-azimuth mobile scanner comprising a base, wherein a driving device A is arranged in the base, a gear is connected to an output shaft to the driving device A, the gear is engaged with a gear ring on a right side of the gear, the gear ring is fixed to an upper surface of a supporting platform, an annular chute is formed in an outer side of the gear ring on the upper surface of the supporting platform, a slide block matched with the chute is arranged in the chute, a vertical supporting frame is arranged on the upper surface of the base, a horizontal supporting frame is fixed to the upper surface of the vertical supporting frame, a vertical guide rod and a horizontal guide rod are separately arranged on the vertical supporting frame and the horizontal supporting frame, a camera bracket A and a camera bracket B are separately arranged on the vertical guide rod and the horizontal guide rod in a sliding manner, scanning cameras are separately fixed to the camera bracket A and the camera bracket B, and the camera bracket A and the camera bracket B are separately connected with a vertical screw and a horizontal screw by threads; and in summary, the multi-azimuth mobile scanner provided by the invention has the advantages of reasonable structural design, high scanning accuracy and strong universality.

The present invention discloses a tooth three-dimensional data reconstruction method, device and system. The method comprises the steps of: employing a three-dimensional imaging system to obtain sparse point cloud sets of teeth in different perspectives, wherein the three-dimensional imaging system comprises a main camera and a plurality of light sources; determining one dense three-dimensional point cloud of teeth in each perspective according to the sparse point cloud set; and performing splicing and fusion of the dense three-dimensional point cloud in different perspectives, and obtaining tooth three-dimensional data. The technical problem is solved that hardware device is high in requirement and complex in calculation when the tooth three-dimensional data is collected in the prior art.

The invention discloses a micro-region fluorescent scanning measurement system which comprises an exciting light source, an excitation light path part, a fluorescence signal collection light path part, a micro-region imaging light path part, a table-board, a two-dimensional electric translation system, a vacuum sample chamber, a vacuum pump, a low-temperature system and temperature control device, a grating spectrometer and a CCD detector, wherein the input end of the excitation light path part is connected with the exciting light source, and the output end of the excitation light path part is connected with the vacuum sample chamber; the excitation light path part is used for guiding laser to income into a sample in the vacuum sample chamber; the fluorescence signal collection light path part is used for collecting a fluorescence signal emitted from the sample; the micro-region imaging light path part is connected with the excitation light path and the fluorescence signal collection light path and is used for micro-region imaging and positioning of the sample surface topography; the excitation light path and the fluorescence signal collection light path part are arranged on the table-board; the two-dimensional electric translation system drives the table-board to do a two-dimensional scanning motion; the vacuum sample chamber is used for placing the sample; the vacuum pump is used for maintaining the vacuum degree of the vacuum sample chamber; according to the low-temperature system and temperature control device, the vacuum degree of the vacuum sample is maintained, and the sample chamber is maintained in a needed low temperature environment; the grating spectrometer is used for processing the fluorescence signal; and the CCD detector is used for acquiring the fluorescence signal.

The invention relates to a spherical scanner and a three-dimensional scanning system. The spherical scanner comprises a hollow-out main body, a plurality of target balls, two cameras and a scanning unit. The plurality of target balls are arranged at vertexes of the main body in a one-to-one correspondence manner. A plurality of mark reflection points are arranged on the surfaces of the target balls. The two cameras and the scanning unit are arranged inside the main body and are connected with the main body; and lenses of the two cameras and the emitting end of the scanning unit are arranged toface the same side of the main body. According to the invention, on the basis of cooperation of the scanning unit and the cameras, modeling of a target object surface is carried out in real time; with the multiple target balls arranged on the main body, a tracking device is able to identify the mark reflection points arranged on the surfaces of the target balls that are not shielded within a viewfield range during the tracking process; and modeling of the surface of the target object is carried out by the scanning unit and the cameras, so that accurate three-dimensional scanning is realized.Moreover, the spherical scanner has advantages of simple structure, small size and beautiful appearance; and the working space can be extended.

The invention discloses a selective laser sintering scanning method. When a sharp corner is met in a selective laser sintering process, a sealed curved-form empty jump is adopted to change the scanning direction, and the scanning speeds at the front and back of the corner are guaranteed to be consistent, thus uniform laser scanning intensity and scanning accuracy of the sharp corner are guaranteed.

The invention relates to a machining method of a large thin-wall bearing ring. The machining method comprises the steps that 1, pretreatment is carried out, wherein a bearing ring rough body is heated to 180-220 DEG C and kept at the temperature for 10-14 h; 2, the ring is subjected to heat treatment; 3, low-temperature cooling treatment is carried out, wherein the temperature is decreased to -65--75 DEG C and kept for 1.5-2.5 h; 4, rough grinding machining is carried out; 5, primary additional tempering is carried out, wherein the roughly-ground product is heated to 140-160 DEG C and kept at the temperature for 22-24 h; 6, semi-accurate machining is carried out; 7, secondary additional tempering is carried out, wherein the semi-accurate ground product is heated to 140-160 DEG C and kept at the temperature for 22-24 h; and 8, final grinding machining is carried out. By means of the machining method, the factors that before heat treatment, machining stress deformation is caused, quenching stress is too large, and stress cannot be completely released through one-time tempering are eliminated, the problem that large thin-wall bearing parts are large in heat treatment deformation is relieved, bearing size stability is improved, machining stress is sufficiently released, machining precision is improved, and therefore the surface quality and rotating precision of a bearing are improved.

The present invention discloses a blade automated detection device based on three-dimensional raster scanning based on three-dimensional optics and a detection method thereof. The device comprises a motion control component, a scanner vertical motion component, a scanner rotation motion component, and a workpiece rotation motion component. A PC-PCI based motion control card is used to control each motion component to move according to a specified trajectory. The scanner vertical motion component is installed on a base and is provided with a sliding plate capable of sliding along a vertical direction, and the movement of a scanner in the vertical direction is realized. The scanner rotation motion component is installed to the connection plate of the scanner vertical motion component and is provided with a connection rod which drives the scanner to rotate. The workpiece rotation motion component is provided with an electromagnetic sucker for fixing the workpiece, the workpiece is driven to rotate, and thus complete workpiece three-dimensional model data can be scanned.

The invention provides an optical scanning assembly which can be used in the field of laser radar and networked vehicles and comprises n lasers arranged at intervals, a detector, a transmitting optical lens, a receiving optical lens and an optical coupling part, and n is an integer larger than 1. Each laser is provided with a transmitting end, and the transmitting ends are positioned on a focal plane of the transmitting optical lens and are arranged at intervals. The optical coupling part comprises n receiving channels, the n receiving channels are in one-to-one correspondence with the n transmitting ends, the n receiving ends are located on the focal plane of the receiving optical lens and are arranged at intervals, and the output ends of the n receiving channels are closely arranged andare in butt joint with the detector, the n lasers transmit laser beams in a time-sharing mode, and the laser beams are emitted out at different angles after entering the transmitting optical lens through the transmitting ends. The receiving optical lens receives n echo light beams generated by the n laser beams and focuses the echo light beams to the corresponding output ends so as to transmit theecho light beams into the detector through the output ends.

The invention discloses a peripheral environment scanning method and system. The method comprises the following steps: capturing peripheral environment data in multiple directions at the same time; processing the captured peripheral environment data, wherein the processing comprises splicing peripheral environment in multiple directions in real time; generating composite peripheral environment information based on the processed results. The system comprises the following components: a main frame, a plurality of data capturing modules, and a processing module. The system can capture peripheralenvironment data in multiple directions at the same time, is not limited by the detection range and the collected data, has higher efficiency and can ensure scanning precision; when processing the captured peripheral environment data, the peripheral environment data at multiple directions can be spliced in time, in order to realize integration of multiple scanned data with better real-time performance. The method and the system can be widely applied to the field of environmental scanning.

The invention provides a magnetron, which comprises a center magnetic control partition, an edge magnetic control partition and a driving mechanism, wherein the driving mechanism can synchronously or independently drive magnetic body groups in the center magnetic control partition and the edge magnetic control partition and make the magnetic body groups run in the own magnetic control partition according to predetermined tracks. The magnetron can effectively increase the metal atom ionization rate of the whole target region, particularly an edge region, so as to improve the hole filling uniformity of the edge region of a substrate. Furthermore, the invention also provides thin film deposition treatment equipment applying the magnetron.

The invention discloses a data fusion method based on structured light. The method comprises the steps: S1, configuring a structured light vision system which comprises two monocular systems and a binocular system, and calibrating the internal and external parameters of the monocular systems and the binocular system; S2, using a calibration plane for calibration to obtain a pixel correction table to be matched on a projector plane, and moving the calibration plane to different positions to obtain n pixel correction tables, wherein the value of n ranges from 8 to 15; S3, performing binocular reconstruction, and in the reconstruction process, identifying points of view shielding and points of matching failure existing in the binocular system; and S4, aiming at the points of view shielding and the points of matching failure in the binocular system in the step S3, performing monocular reconstruction by utilizing the first monocular system and / or the second monocular system and combining the n pixel correction tables obtained in the step S2. The method can meet general precision requirements of monocular and binocular data fusion based on structured light.

The invention discloses a novel large-view 3D laser camera structure, and relates to the technical field of 3D laser cameras. The main structure comprises a driving mechanism, a pendulum mechanism anda 3D camera, and the 3D camera comprises a camera body and a laser arranged at the bottom of the camera body. The driving mechanism selects a motor, the motor drives the connecting rod to enable a swing rod to swing, so that the laser is driven to swing within a certain angle range, the swing stability of the laser is guaranteed, the scanning interval and the swing range of the laser can be changed by adjusting the rotating angle and the rotating speed of the motor, and the scanning precision is guaranteed.

The invention provides a stay wire encoder scanning device based on stainless steel weld phased array detection. The stay wire encoder scanning device comprises a powerful chuck base, a linear guide rail, a stay wire encoder, a probe holder and a probe, the powerful chuck base is fixed at one end of the linear guide rail through a screw and is used for adsorbing and fixing a non-ferromagnetic workpiece; the probe holder is fixed on the linear guide rail through a screw and is used for restraining the moving direction of the probe through the linear guide rail; the probe is clamped on the probe holder; and the stay wire encoder is fixed at the end of the linear guide rail through a screw and is used for positioning the position of the probe. The powerful chuck is used as a fixing device, the stay wire encoder is fixedly connected with the chuck, the problem of recording the position of a non-ferromagnetic material is solved, the linear guide rail is adopted to restrain the walking track of the probe and ensure the scanning precision, meanwhile, the limited position is changed from the linear guide rail to the lifting rod adjusting position, and the problem of position limitation is solved; the encoder device can be fixed at the edge, the corner and the high position, and operation is convenient.

The invention discloses a scanning method based on a capacitive touch screen, which comprises the following scanning steps: S1, sending a driving signal by a capacitive screen driving electrode, and receiving the driving signal of the driving electrode by a receiving electrode; S2, globally scanning to obtain a touch area; S3, selecting the driving electrode at the edge of the touch area and the receiving electrode at the edge of the touch area; and S4, enabling the selected driving electrode to send a driving signal, and enabling the selected receiving electrode to receive the driving signal.According to the invention, by a global scanning and local scanning alternate scanning mode, the touch area is obtained through global scanning, the driving electrode at the edge of the touch area isselected to send the driving signal, and the driving signal is received through the receiving electrode; local scanning is carried out to determine the range of the touch area, and the local scanningarea is small, so that the scanning time is shortened, touch points can be conveniently and quickly scanned, the touch response speed is higher, the touch sensitivity is higher, and the use experience of the capacitive touch screen is improved.

The invention provides a trailer type vehicle-mounted inspection system and method, and the system comprises a vehicle body which is sequentially provided with a radiation source inspection module and a back scattering inspection module in the moving direction of a to-be-detected vehicle; the radiation source inspection module comprises a base, and the base is movably arranged on the vehicle body; a radiation source box body and a foldable detection support are arranged on the base, and the radiation source box body is movably connected to the base; the detection support comprises a main arm, a horizontal arm and a vertical arm. One end of the horizontal arm is hinged to the main arm, the other end of the horizontal arm is hinged to the vertical arm, and the end, away from the horizontal arm, of the main arm is hinged to the base; the back scattering inspection module comprises a back scattering square cabin and a traction assembly arranged between the back scattering square cabin and the vehicle body; the traction assembly drives the back scattering square cabin to move left and right on the vehicle body. The trailer type vehicle-mounted inspection system is high in overall maneuverability, flexible in arrangement, high in detection efficiency and high in precision.

The invention relates to the technical field of electron microscopes and particularly relates to a high-precision piezoceramic scanner. The high-precision piezoceramic scanner comprises a support, a piezoelectric tube body, a shell, a cover, a first wire, a second wire, a connector and a ceramic tube, wherein the support is fixed inside one end of the shell. according to the high-precision piezoceramic scanner provided by the invention, while the scanning precision is ensured, the making process is simple, the success rate is high, the cost is low, the high-precision piezoceramic scanner can be applied to a scanning tunneling microscope and a scanning probe microscope, and industrial production is facilitated.

The invention relates to the technical field of laser measurement, and particularly discloses an improved 3D laser scanning imaging system which comprises an outer frame and a pull rod connected withthe outer frame; a servo motor, a synchronous belt base, a linear sliding rail, a sliding block, a scanner and a scanner frame are arranged on the outer frame, and the servo motor is connected with the synchronous belt base through a synchronous belt. The sliding block is installed on the linear sliding rail, the scanner frame and the sliding block are both connected with the synchronous belt base, and the scanner is installed on the scanner frame. The improved 3D laser scanning imaging system is simple in structure and flexible in movement, can effectively guarantee the scanning imaging precision, and meets the production demands.

The invention discloses an electronic scanner for hospital surgery remote diagnosis, and a use method thereof. The electronic scanner comprises a shell, a manned table rotationally is connected to the inner wall of a scanning cavity, the electronic scanner further comprises CT scanning heads arranged vertically and a driving mechanism used for driving the CT scanning heads to move transversely and driving the manned table to rotate, and the transverse movement of the CT scanning heads and the rotation of the manned table are alternately carried out. The electronic scanner has the effects that the parts above the chest of a patient can be subjected to remote omnibearing scanning firstly and then the parts below the chest of the patient can be subjected to close omnibearing scanning through a single driving component, so the problems that when the CT diagnostic imaging device is used, a CT scanning head of the CT diagnostic imaging device cannot automatically perform omnibearing scanning on the patient, the CT diagnostic imaging device cannot automatically perform omnibearing scanning on the patient, a patient needs to walk or move CT diagnosis imaging equipment by himself or herself, operation is troublesome, the CT scanning head of the patient is often close to the patient during scanning, and therefore radiation has large harm to the head of the patient when the head of the patient is scanned are solved.

The invention relates to a composite type beam coarse and fine coupling scanning device which comprises a base, a spring, a middle lens frame, an inner lens frame, a wedge prism, a large bearing end cover, a rotary encoder rotor, a rotary encoder stator, an outer lens frame, a large bearing retainer ring, a large bearing, a nylon pad, a wedge retainer ring, a threaded pressing ring, a prism tightening screw, a torque motor stator, a torque motor rotor, a voice coil motor rotor, a push rod, a voice coil motor stator, a push groove, a third nylon pad, a small bearing, a small bearing end cover, a half shaft, and a small rotary encoder assembly. Through the rotation of the wedge prism, the beam large range coarse scanning is realized, through the deflection of the wedge prism, the beam local range high precision scanning is realized. One set of the device or multiple sets of the devices can be used together, the scanning range of the beam can be increased further when the multiple sets of the devices are used, the rich scanning styles are realized, and the device has extensive prospect in the application fields with high requirements of a beam scanning range and precision such as photoelectric imaging detection, free space laser communication, and dynamic target laser tracking.

A laser projector exposure time control method of a handheld laser three-dimensional scanner, comprising the steps of: 1) setting the exposure time Ts of the laser projector in a camera sampling period as the initial value of feedback control, and collecting image data of the camera ; 2) Screen the real laser line projection from the images collected by the camera; 3) After obtaining the connected area of ​​the laser line projection, count the pixels in the connected area, and compare the statistical results with the set reasonable exposure range of the laser , if it belongs to the reasonable exposure gray scale interval, take Ts as the exposure time of the laser projector, otherwise, adjust Ts. The invention provides a method for controlling the exposure time of a laser projector of a hand-held laser three-dimensional scanner with good scanning effect and high scanning precision.

A stone scanning device provided by the present invention comprises a rack, the rack is provided with a conveying mechanism used for conveying a stone plate, a scanning camera used for scanning stone, a light supplementing mechanism used for enhancing light and a shielding mechanism used for shielding ambient light, and the rack is provided with a sealing box located above the conveying mechanism. The scanning camera is arranged in the sealing box, a through hole located under the scanning camera is formed in the bottom of the sealing box, the shielding mechanism comprises an upper shielding box and a lower shielding box, the upper shielding box is installed on the through hole, and a light path through hole used for the scanning camera to emit infrared rays downwards and receive light signals is formed in the upper shielding box. The top of the lower shielding box is provided with a light inlet hole used for absorbing ambient light. Ambient light can be effectively shielded, the linear light source is adopted, the light source uniformity is good, it can be guaranteed that the illumination intensity of the scanning edge area meets the scanning requirement, and therefore the scanning precision is guaranteed.

The invention discloses a surrounding environment scanning method and system. The method includes: capturing surrounding environment data in multiple directions at the same time; processing the captured surrounding environment data, wherein the processing includes splicing the surrounding environment data in multiple directions in real time Environmental data; generate composite surrounding environment information according to the processing results. The system includes a main frame, multiple data capture modules and processing modules. The invention can capture the surrounding environment data in multiple directions at the same time, without being limited by the detection range and collected data, has higher efficiency and can ensure the scanning accuracy; when processing the captured surrounding environment data, multiple directions can be spliced ​​in real time The surrounding environment data realizes the integration of multiple scanning data, and the real-time performance is better. The invention can be widely used in the field of environment scanning.