63results about How to "Realize fine positioning" patented technology

The invention discloses a mobile device for realizing guide controlling, a server for realizing the guide controlling based on the mobile device and a method of the guide controlling based on the mobile device, wherein, position information of the mobile device is firstly determined, and in all scenes, all scene information of all candidate scenes within a position area in which the mobile device is positioned is searched for realizing the coarse positioning of guide data; and according to the matching degree of images of all candidate scenes and discretional scene images taken at the position of the mobile device, at least one concerned scene is determined for realizing the fine positioning of the guide data, and then the scene information of the concerned scene is displayed and output to a user, thereby ensuring that the mobile device has guide function based on a duplex-option mode of mobile device positioning and image searching.

The invention discloses a movable sucker for a die. The movable sucker structurally comprises a sucker, a positioning part and an ejecting assembly. The ejecting assembly can eject the adsorption end of the sucker out of a forming face of the die. In the process that a mechanical arm conveys hardware to be injected to the adsorption end of the sucker, the hardware to be injected can be primarily positioned through the positioning part, the sucker acts to adsorb the hardware to be injected to the sucker, and then the sucker retracts and resets; in the reset process, the hardware to be injected slightly moves relative to the sucker under limiting of the positioning part, so that the hardware to be injected is accurately positioned, the hardware to be injected is placed in place, and the risk of film pressing is effectively lowered; and in addition, due to the fact that the adsorption end of the sucker stretches out of the forming face of the die, when the mechanical arm conveys the hardware to be injected to the sucker, the mechanical arm does not need to make contact with the forming face of the die so that the mechanical arm can be prevented from damaging the forming face of the die, and meanwhile the space cross depth of the mechanical arm and the positioning part is effectively reduced so that the interference between the mechanical arm and the positioning part can be effectively avoided.

The invention provides a complex system fault positioning method based on a dynamic multilayer coupling network. The method comprises the following steps: step A, constructing the dynamic multilayer coupling network in multiple modes; step B, positioning a complex system fault time period; and step C, positioning a complex system fault node. Aimed at a scene that a traditional reliability analysismeans is usually applied to a single-fault-source and static analysis, the invention provides a complex system fault positioning method based on a dynamic multilayer coupling network by applying a complex network theory in order to solve the problem that it is difficult to realize fault positioning on a complex system with the characteristics of dynamic propagation, cascade failure, multivariatefaults, uncertainty and the like. The method does not need to calculate and compare all node feature information, can quickly locate the fault node of the complex system on the premise of occupying less computer computing power, and has good practical application value.

The invention provides a diagonal network-based anchor-frame-free target detection method and system. The method comprises the following steps of: extracting depth features of an input image by using an hourglass network and carrying out pooling operation so as to obtain a key point thermodynamic diagram, an embedded feature vector feature diagram and an offset feature diagram; processing the key point thermodynamic diagram by using a diagonal network, sorting the key points according to confidence coefficients, selecting the key points of the first k confidence coefficients as target key points, and obtaining key point positions and key point category information of the upper left corner, the lower right corner and the central point; based on a Fisher criterion, designing an embedded vector learning loss function to carry out key point combination pairing training, and further discriminating a preliminary pairing result by using a central key point; and using the distance, the length and the slope measurement loss of the diagonal center points of the prediction rectangle and the annotation rectangle frame to design the diagonal loss for regression training of the target prediction frame. The technical problems that the anchor frame is difficult to design, samples are unbalanced and the detection precision is low are solved.

The invention discloses a two-dimensional code positioning method, and the method comprises the steps: S11, carrying out the preprocessing of a two-dimensional code image, and obtaining a binary image; S12, coarse positioning of the two-dimensional code: calculating the contrast ratio of adjacent pixel points in the binarized image, and if the contrast ratio is close to a contrast ratio threshold value, determining that the adjacent pixel points are two-dimensional code areas, and completing coarse positioning of the two-dimensional code areas; and S13, fine positioning of the two-dimensional code: extracting an edge contour of the coarse positioning two-dimensional code image area, performing straight line fitting on the extracted edge contour, fitting into four straight lines, taking an intersection point of the four straight lines as an angular point of the two-dimensional code, and taking a connection line intersection point of two groups of diagonal angular points as a midline point of the two-dimensional code, thereby finishing fine positioning of the two-dimensional code. Two-dimensional code coarse positioning and two-dimensional code fine positioning are carried out in sequence, accurate positioning of two-dimensional code intersection points in an image is achieved, preliminary extraction of two-dimensional code contour coarse is achieved through contrast, contour lines are combined based on straight line fitting, and accurate positioning of two-dimensional code angular points in the image is achieved.

The invention discloses a full-automatic numerical control jump cutting machine which comprises a machine body, a transmission mechanism, a main motor, a pressurizing mechanism and an upper die base. A jump cutting platform is arranged on a bottom plate of the machine body. A tool ejecting mechanism is arranged on the bottom plate and corresponds to the jump cutting platform. Therefore, firstly, the vertical position of the upper die base is adjusted slightly through matching of a servo motor, a turbine and a worm, so that electric pressurization and numerical control automatic operation are realized, manual adjustment and pressurization are eliminated, and the operation is convenient and flexible; secondly, the parallelism between the jump cutting platform and the upper die base is adjusted slightly through matching with the tool ejecting mechanism, so that accurate positioning is realized, the stability is better, and high-precision machining of all-cut or half-cut large-width materials and specialty materials (thick) for both coiled materials and sheet materials can be realized; thirdly, due to the arrangement of a clutch, a common motor can be used as the main motor, so that the cost is lower, the speed is faster, the ton force is larger, and the materials can be cut off more easily.

The invention discloses a silicon steel sheet lamination device, and relates to the field of silicon steel sheet lamination, and the silicon steel sheet lamination device comprises: a feeding mechanism which comprises a first positioning device, wherein the first positioning device comprises a plurality of first axial positioning columns, the first axial positioning columns are in one-to-one correspondence with circumferential holes, and the plurality of first axial positioning columns respectively penetrate through the circumferential holes at different positions; a fine positioning mechanism which is used for circumferentially positioning the silicon steel sheets; a discharging mechanism which comprises a second positioning device, wherein the second positioning device comprises a center positioning column used for being matched with center holes of the silicon steel sheets; a transferring mechanism which is used for moving the silicon steel sheets arranged on the first axial positioning columns to the fine positioning mechanism; an imaging device; and a camera device which is in communication connection with a robotic arm, wherein the robotic arm adjusts the angles of the silicon steel sheets according to the key groove square opening characteristics shot by the imaging device and moves the silicon steel sheets to the center positioning column. The silicon steel sheet lamination device can effectively reduce the labor intensity of workers and improve the lamination efficiency.

The invention discloses an optical bench, which includes a base and a plurality of fixing parts for installing experimental components, the base is provided with a connection surface extending along a first direction, and the base is provided with a connection surface along the connection surface. For the first scale, a plurality of first plug-in parts are evenly spaced on the connecting surface, and second plug-in parts are arranged on the fixing part, and the first plug-in parts of each fixing part can be plugged with any second plug-in parts Cooperate; one end of the transmission rod on the outside of the housing is connected with a knob, the transmission rod is connected to a gear on the inside of the housing, the gear and the rack are meshed, and the fixed block is fixedly connected to the rack; the housing is surrounded by a knob As for the second scale, the distance between two adjacent first plug joints is not greater than the distance that the transmission rod rotates to drive the fixed block to move, and the first scale is an order of magnitude larger than the second scale. The optical bench provided by the present invention is not only easy to rotate at a constant speed when the knob connected to the gear is controlled, but also can be rotated to the target position more conveniently at one time.

The invention belongs to the technical field of wafer unloading and provides a taking and placing device for automatic wafer unloading. The taking and placing device comprises a rack, a speed chain conveying line, a carrier positioning mechanism, a taking and placing mechanical arm, a cover plate placing table and a wafer placing table are arranged on the rack, wherein a blocking cylinder is arranged on the speed chain conveying line; the taking and placing mechanical arm and the cover plate placing table are both located on one side of the speed chain conveying line, a taking and placing mechanism is arranged at the shaft end of the taking and placing mechanical arm, and the wafer placing table is located at one end of the speed chain conveying line; the material taking and placing mechanism comprises an installation frame installed on a working shaft of the taking and placing mechanical arm, a Bernoulli suction cup driven by a piece taking air cylinder is installed on the installation frame, a suction nozzle installation plate is further installed at the bottom of the installation frame, and a plurality of cover plate suction nozzles are installed at the bottom of the suction nozzle installation plate. Compared with a traditional manual wafer taking mode, wafer taking efficiency is greatly improved, the phenomenon that the wafer is accidentally scratched in the wafer discharging process is effectively avoided, and it is guaranteed that the quality and the percent of pass of the wafer are not affected in the wafer discharging process.

The invention belongs to the technical field of SAR ship target detection and identification, and discloses a large-breadth SAR image ship target detection and identification method based on fine segmentation. The method comprises the following steps: carrying out stretching and cutting of a large-breadth SAR original image, and obtaining a plurality of slice images; detecting the slice images to obtain a detection result, mapping the detection result back to the original image, fusing redundant detection frames by utilizing a voting strategy, and calculating a new target position; sending each target area into a segmentation network FCN to obtain a fine pixel-level segmentation result of a target; and taking out a minimum bounding box of a segmented target, sending the minimum bounding box into a classification network AlexNet, and suppressing a false alarm target to obtain a final detection and identification result. According to the method, the positioning precision and the detection speed of the target are effectively improved in the detection stage, after segmentation and classification network processing, the accuracy of a prediction frame is further improved, the false alarm rate is reduced, and detection and identification of SAR ship fine positioning are achieved.

The invention belongs to the technical field of cylinder head processing, and provides a cylinder head automatic detection and spraying production line. The detection frame and the spraying frame are respectively provided with a first roller conveyor line and a second roller conveyor line; the detection machine The bottom of the frame is equipped with a positioning block driven by the first cylinder and a lower sealing plate driven by a hydraulic cylinder. The upper sealing plate is installed on the top of the frame. The two ends of the upper sealing plate are respectively equipped with side sealing plates driven by the second cylinder. There are sealing rings on the clamping surface, and an airtight detection hole is opened on the clamping surface of one side of the sealing plate, and an airtightness detector is installed on the top of the frame; Rust oil spraying room, anti-rust oil spraying room is equipped with a number of atomizing nozzles. The invention can realize the automatic assembly line operation of cylinder head air tightness detection and anti-rust oil spraying, the efficiency of detection and spraying is greatly improved, the cumbersome process of treatment after soaking the test piece is saved, and the environmental pollution and personal injury during spraying are effectively avoided. health hazard.

The invention discloses a movable sucker for a die. The movable sucker structurally comprises a sucker, a positioning part and an ejecting assembly. The ejecting assembly can eject the adsorption end of the sucker out of a forming face of the die. In the process that a mechanical arm conveys hardware to be injected to the adsorption end of the sucker, the hardware to be injected can be primarily positioned through the positioning part, the sucker acts to adsorb the hardware to be injected to the sucker, and then the sucker retracts and resets; in the reset process, the hardware to be injected slightly moves relative to the sucker under limiting of the positioning part, so that the hardware to be injected is accurately positioned, the hardware to be injected is placed in place, and the risk of film pressing is effectively lowered; and in addition, due to the fact that the adsorption end of the sucker stretches out of the forming face of the die, when the mechanical arm conveys the hardware to be injected to the sucker, the mechanical arm does not need to make contact with the forming face of the die so that the mechanical arm can be prevented from damaging the forming face of the die, and meanwhile the space cross depth of the mechanical arm and the positioning part is effectively reduced so that the interference between the mechanical arm and the positioning part can be effectively avoided.