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487results about How to "No contact" patented technology

Visual sample positioning operating system and method based on light spot detection

The invention relates to a visual sample positioning operating system and a visual sample positioning operating method based on light spot detection. The system comprises a visible laser source, a collimation beam expansion unit, a light beam condensation unit, an electric control mobile sample table, a CCD (charge coupled device) image acquisition unit and a computer, wherein a sample to be detected is loaded on the electric control mobile sample table; visible laser emitted by the visible laser source sequentially passes through the collimation beam expansion unit and the light beam condensation unit to form a conical marking light path; the marking light path is emitted to the sample to be detected to form a marking light spot; the CCD image acquisition unit acquires the marking light spot and sends the marking light spot to the computer; the computer processes the received marking light spot image to obtain marking light spot parameter information, judges a defocusing state of the marking light spot according to the marking light spot information to search a focusing position and controls the electric control mobile sample table to adjust the position of the sample to be detected according to the searched focusing position, so that automatic focusing of the sample to be detected is realized. The visual sample positioning operating system and the visual sample positioning operating method based on the light spot detection can be widely applied to an automatic sample positioning operation.
Owner:TSINGHUA UNIV

Target positioning method and device for airborne equipment

The invention relates to a target positioning method and a target positioning device for airborne equipment. The device comprises a signal processing unit, a laser distance measuring instrument, a thermal infrared imager, a visible light camera, a combined inertial navigation module and an angle meter, wherein output signals of the laser distance measuring instrument, the thermal infrared imager, the visible light camera, the combined inertial navigation module and the angle meter are all connected to the signal processing unit, and the signal processing unit is used for solving positional information of a target according to uploaded signals. Aerial carrier global positioning system (GPS) information, aerial carrier gesture information, angular deviation of observation equipment relative to an aerial carrier and distance measuring information of the target by the observation equipment are integrated to realize accurate positioning of longitude and latitude height of the target. The advantage of a multi-sensor is combined, a multi-dimensional spatial alternation principle is utilized so as to rapidly and effectively realize accurate target positioning in a non-contact and high-adaptability way, and the target positioning method can be applied to fields such as forest fire prevention, personnel rapid search and rescue and the like, and has wide technological and market prospects.
Owner:凯迈(洛阳)测控有限公司

Magnetic suspension linear motion platform based on combination of permanent magnets and electromagnets

The invention discloses a magnetic suspension linear motion platform based on the combination of permanent magnets and electromagnets. The electromagnets are vertically installed in a suspensoid, array permanent magnets are arranged on the surface of a guide rail, the suspension of the suspensoid can be realized by utilizing the principle of holopolarity repulsion between the electromagnets and the permanent magnets; and meanwhile, an eddy current displacement sensor is combined to realize the stable suspension of the suspensoid above the guide rail; two pairs of electromagnets are horizontally installed in the suspensoid, which can provide guidance for the linear motion of the platform by combining with the eddy current displacement sensor; a linear motor stator is fixed on a base, a linear motor rotor is fixed on the suspensoid, a grating ruler is arranged on the surface of the guide rail, and the reading head of the grating ruler is installed on the suspensoid, thus the precise linear positioning motion of the suspensoid can be realized. The platform provided by the invention can realize the functions such as super cleaning, high speed, long stroke, precise positioning motion and the like, which can not be realized by the traditional scheme that a rotary servo motor is utilized to drive, a precise ball screw is utilized to transmit and a slide guide is utilized to support, and has the advantages of good load bearing characteristic and stable suspension performance.
Owner:CENT SOUTH UNIV

Laser heating assisted turning device and method

The invention provides a laser heating assisted turning device and method. The laser heating assisted turning device comprises a turning device body, a laser device, a non-contact temperature measuring device and a control device, wherein a tool and a workpiece are fixed to the turning device body, the tool is detachably connected with the turning device body, the laser device is used for heating the workpiece through laser, the non-contact temperature measuring device is used for acquiring the temperature at the cutting position of the workpiece in real time, and the control device is used for comparing data of an optimum temperature field stored in the control device with temperature data acquired by the non-contact temperature measuring device in real time and controlling the laser device to adjust laser parameters so as to achieve the optimum temperature field if difference exists. The laser heating assisted turning device has the advantages that the laser parameters are adjusted in a data matching mode so that the temperature field at the cutting position of the workpiece can be always consistent to the optimum temperature field, the cutting performed in the temperature field makes the service life of the tool longest, the machined surface quality of the workpiece is the best, and the turning efficiency is the highest.
Owner:HARBIN INST OF TECH

Full-automatic LCD detecting control system and method based on AOI technology

The invention discloses a full-automatic LCD detecting control system and method based on an AOI technology. The system comprises an Inline line body PLC module and a detecting workstation, wherein automatic compression joint equipment and an AOI system are arranged in the detecting workstation; the Inline line body PLC module is used for controlling the position of an LCD panel on an assembly line; the automatic compression joint equipment is used for controlling a motor to carry out automatic plug wire compression joint on the LCD panel of the detecting workstation; after plug wire compression joint is finished, the AOI system is informed to begin to detect; after a detection finish signal transmitted from the AOI system is received, a wire is automatically unplugged from the LCD panel; and the AOI system is used for receiving a detection beginning signal and then automatically optically detecting the LCD panel, generating a detecting information file, and transmitting the detecting finish signal to the automatic compression joint equipment. Disadvantages of manual detection can be overcome, the defect detection speed is high, the precision is also high, the system is automatic and practical, a non-contact mode is carried out, and the development prospect in the industry of defect detection of liquid crystal displays is wide.
Owner:WUHAN JINGCE ELECTRONICS GRP CO LTD

Screw tightening machine capable of preventing screw from being brought up

The invention discloses a screw tightening machine capable of preventing a screw from being brought up. The screw tightening machine comprises a support, a feed mechanism, an upper slide block, a lower slide block, a pushing-up mechanism, an electric screwdriver assembly and a screwdriver head. The support is provided with an air cylinder seat and a pushing-up mechanism seat. The feed mechanism is composed of a main air cylinder and a feed rod. The upper slide block and the lower slide block are arranged on the support. The feed rod of the feed mechanism penetrates through the upper slide block and the lower slide block sequentially. The pushing-up mechanism is arranged on the pushing-up mechanism seat. The screwdriver head is arranged on the lower slide block. The electric screwdriver assembly is arranged on the upper slide block. The feed mechanism and the pushing-up mechanism are adopted for the screw tightening machine, so that when the screw is tightened through a screwdriver, stable axial contact force between the screwdriver and the screw is maintained. When the screwdriver retreats from the screw, the pushing-up mechanism makes the screwdriver head leave the screw fast, so that the hidden trouble that the screw is brought up by the screwdriver head is avoided completely. The screw tightening machine has the advantages of being contactless, easy to control and high in efficiency.
Owner:SHANGHAI WORKPOWER TELECOM TECH

Active vibration isolation control platform

The invention discloses an active vibration isolation control platform. The active vibration isolation control platform comprises an active vibration isolation device and an active vibration isolation controller; the active vibration isolation device comprises a lower platform, a midbody and an upper platform; a voice coil motor actuator is arranged between the midbody and the lower platform; a linear variable differential transformer type displacement sensor is arranged between the upper platform and the midbody; and two three-freedom-degree acceleration sensors are arranged on the upper platform and the lower platform respectively. The vibration isolation controller is designed according to a master-slave open type control structure and consists of an upper control computer and a lower execution controller, wherein the upper control computer is a mainframe of an embedded type industrial control computer PC/104; and the lower execution controller is an open-type controller. The active vibration isolation control platform is quite effective on low-frequency vibration isolation and is applicable to precise manufacture, precise measurement, aerospace application and other vibration isolation fields with special requirement on vibration environment.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Differential magnetic suspension vibration isolator

The invention discloses a differential magnetic suspension vibration isolator which comprises an upper annular E-shaped electromagnet (15), a lower annular E-shaped electromagnet (11), an upper coil winding (8), a lower coil winding (10), a displacement sensor (1), a connecting flange plate (3), an adjusting nut (4), a spring (6), a linear bearing (7) and an armature (9). The upper annular E-shaped electromagnet (15) and the lower annular E-shaped electromagnet (11) are fixed onto a shell (14) and a base (12) respectively, the upper coil winding (8) and the lower coil winding (10) are fixed onto the upper annular E-shaped electromagnet (15) and the lower annular E-shaped electromagnet (11) respectively, the displacement sensor (1) is fixed onto the shell (14) through a support (16), the connecting flange plate (3), the adjusting nut (4), the spring (6), the linear bearing (7) and the armature (9) are sequentially connected in series from top to bottom through connecting rods (5), the shell (14) is fixed onto the base (12), and a sleeve (13) is fixed into the shell and matched with a spiral groove in the inner wall of the shell to form a sealed cooling water channel. The differential magnetic suspension vibration isolator has the advantages of simple structure, small size, non-contact, long service life, rapid response and easiness in regulating electromagnetic force, and has an excellent application prospect in the field of active vibration noise control.
Owner:WUHAN UNIV OF TECH

Cell cartridge with a composite intercell connecting net structure

The present invention relates to a cell cartridge which enables the mass production and stabilization thereof, and in which a plurality of unit cells are assembled in a composite serial-parallel connection method in a case, and thus is modulated. The aim of the present invention is to provide a cell cartridge with a composite intercell connecting net structure, which can be simply assembled, as opposed to conventional methods of binding cells using a glass tape or the like, to shorten the time required for assembly and to enable easy assembly, and to improve the productivity and the accuracy of production standards.; Further, the aim of the present invention is to provide a cell cartridge with a composite intercell connecting net structure in which cells are maintained at a constant interval to prevent problems caused by the direct contact among cells and by the heat generated thereby, to prevent the problems of the performance degradation of cells and the shortened lifespan of a battery caused by the direct contact among cells and by the heat generated thereby, and to enable mass production of standardized module-wide cell packs. To this end, a cell cartridge with a composite intercell connecting net structure is disclosed, wherein said cartridge comprises: a plurality of unit cells; a case which accommodates the unit cells assembled therein; spacing members arranged among the unit cells accommodated in the case to keep the unit cells separate from one another by a predetermined spacing; and a connection plate which is fixed at the inner surface of the case, and equipped with terminals connected to the terminal of each of the unit cells to connect the unit cells in a composite serial-parallel fashion.
Owner:ICEL SYST KOREA +1

Method and system for checking attendance by means of face recognition at mobile ends

The invention discloses a method for checking attendance by means of face recognition at mobile ends. The method includes steps of 1, carrying out registration by company administrators via application programs at the mobile ends; 2, carrying out information registration and face registration by company staffs via company codes; 3, allowing the staffs to log in attendance checking application programs at the mobile ends via the company codes, user names and initial passwords to carry out attendance checking; 4, carrying out face recognition on detected face images on servers and feeding attendance checking results to users; 5, writing attendance checking information in databases, allowing company administrative staffs to check attendance conditions of the staffs via programs in mobile phones, synchronizing attendance checking data to company staff management systems and carrying out unified management. The invention further provides a system for checking the attendance by means of face recognition at the mobile ends. The method and the system have the advantages that the locations of the staffs with the attendance to be checked can be determined by the aid of positioning information, identity of the staffs with the attendance to be checked can be determined by means of face recognition, the locations and the identity of the staffs are combined with one another, and accordingly the attendance of the staffs can be checked at the mobile ends in specified ranges.
Owner:SICHUAN CHANGHONG ELECTRIC CO LTD

Bearing-free permanent magnetic synchronous generator

The invention discloses a bearing-free permanent magnetic synchronous generator. A permanent magnetic rotor is coaxially sleeved with a stator iron core, the stator iron core is evenly provided with 36 stator grooves in the circumferential direction, and each stator groove is internally provided with an inner layer winding and an outer layer winding. Each outer layer winding is composed of two pairs of pole generation windings, the number of stator grooves of each pole and each phase is three, and each inner layer winding is a pair of pole suspension force windings and two pairs of pole excitation windings. The generation windings are distributed according to an A1+ phase, a B1- phase, a C1+ phase, an A1- phase, a B1+ phase, a C1- phase, an A2+ phase, a B2- phase, a C2+ phase, an A2- phase, a B2+ phase and a C2- phase in the clockwise direction. The suspension force windings are distributed according to an a+ phase, a b- phase, a c+ phase, an a- phase, a b+ phase and a c- phase in the clockwise direction. The excitation windings are distributed according to an X1+ phase, a Y1- phase, a Z1+ phase, an X1- phase, a Y1+ phase, a Z1- phase, an X2+ phase, a Y2- phase, a Z2+ phase, an X2- phase, a Y2+ phase and a Z2- phase in the clockwise direction. Operation reliability of a motor under special working conditions is improved.
Owner:扬中市冠捷科创有限公司

Shortening-related thermal tomography detection method and shortening-related thermal tomography detection system for GFRP (glass fiber reinforced plastics) crack defects

The invention discloses a shortening-related thermal tomography detection method and a shortening-related thermal tomography detection system for GFRP (glass fiber reinforced plastics) crack defects. The shortening-related thermal tomography detection system comprises a thermal infrared imager, an Ethernet cable, a computer, a USB (universal serial bus) data line, a BCN (broadband communication network) triggering signal line, a data collection card, a BNC data line, a laser device power source, a laser device power line, a laser device, an optical fiber and a collimating lens. The thermal infrared imager is connected with the computer through the Ethernet cable, the computer is connected with the data collection card through the USB data line, the data collection card is connected with the thermal infrared imager through the BNC triggering signal line and is connected with the laser device power source through the BNC data line, the laser device power source is connected with the laser device through the laser device power line, and the laser device is connected with the collimating lens through the optical fiber. The shortening-related thermal tomography detection system has the advantages that completely-damage-free, non-contact and efficient detection of the crack defects of GFRP materials can be realized, and dimensional limitation of detection materials is avoided.
Owner:HARBIN INST OF TECH

Real-time measurement method of pupil diameters based on binocular stereo vision

A real-time measurement method of pupil diameters based on the binocular stereo vision is provided. The method comprises: using Zhang Zhengyou's dual target method for camera calibration to obtain a rotation matrix, a translation matrix, a parameter matrix in the left industrial camera, and a parameter matrix in the right industrial camera; respectively processing images captured by the left industrial camera and the right industrial camera to obtain true ellipses corresponding to the pupil; drawing a straight line across the center of the true ellipse of the pupil obtained by the left industrial camera, wherein the straight line equation is intersected by the true ellipse of the left industrial camera to obtain a first intersection point and a second intersection point; according to the principle of polar line constraint and order consistency, by using the first intersection point and the second intersection point, respectively solving a first matching point and a second matching point corresponding to the two intersection points on the true ellipse obtained by the right industrial camera; and obtaining preliminary values of a plurality of pupil diameters corresponding to a plurality of straight lines with different slopes, and solving an average value to obtain a final result. The method provided by the present invention has high measurement precision, does not require the worker to fix the working distance, and has great application value.
Owner:TIANJIN UNIV

Horizontal tuning frame type eddy current damper

ActiveCN112144689AImprove energy efficiencyImprove the problem of irregular deformationProtective buildings/sheltersShock proofingFrequency bandMagnet
The invention provides a horizontal tuning frame type eddy current damper. The horizontal tuning frame type eddy current damper comprises a supporting system, a spring mass system, an eddy current damping system and a negative stiffness system, wherein the supporting system comprises an outer frame and a guide rod; the spring mass system comprises a spring and a balancing weight; the eddy currentdamping system comprises a low-speed end permanent magnet, a high-speed end permanent magnet, a guide rail, a sliding block, a magnetism adjusting plate, a conductor plate and back iron; the negativestiffness system comprises a moving permanent magnet and a fixed permanent magnet; and the damper applies the magnetic field modulation principle and the concept of a negative stiffness nonlinear energy trap. The moving speed of the high-speed end permanent magnet is increased through the magnetism adjusting plate, and the energy consumption efficiency of the damper is improved. The movement of the balancing weight can be promoted through the tangential component of repulsive force between the permanent magnets of the same name, and therefore the vibration reduction frequency band is widened,robustness is better, and the problem that the vibration reduction effect is poor when a traditional tuning mass damper is out of order is solved.
Owner:湖南省潇振工程科技有限公司
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