37results about How to "Solve difficult to locate" patented technology

The invention provides a positioning system and a positioning method based on two-dimensional codes, a gyroscope and an accelerometer as well as an information service method. The system comprises two-dimensional codes, and further comprises a mobile phone with the gyroscope, the accelerometer and a camera therein and a system server, wherein a two-dimensional code mark which represents the position of a user is arranged on a main position of a user travelling path; the mobile phone camera of the user establishes image information catching connection with the two-dimensional code mark to shootthe two-dimensional codes to obtain main information position; the mobile phone gyroscope and the accelerator establish motion information catching connection with action of the user to capture a user motion direction and acceleration information; the user mobile phone establishes communication connection with the system server to send the obtained two-dimensional code position information as well as the user motion direction and the acceleration information caught by the gyroscope and the accelerometer to the system server; and a practical position and position map information sent to the mobile phone by the system server is received for the user to check.

The invention discloses a d device for testing characteristics of junction surfaces between roll balls and roller paths. The device comprises the two less-half-cylindrical roller paths which are arranged in a perpendicular mode. The roll balls are arranged in the roller paths. The roller paths are arranged on test pieces. The test pieces are connected with a displacement sensor and a force sensor. The test pieces comprise an upper test piece and a lower test piece. The upper test piece and the lower test piece are both of a cylinder shape and are arranged coaxially. The two less-half-cylindrical roller paths are arranged in the middle position of the upper test piece and the middle position of the lower test piece respectively. The displacement sensor and the force sensor are connected with the upper test piece. According to the device for testing the characteristics of the junction surfaces between the roll balls and the roller paths, the two roller paths which are arranged in the perpendicular mode are used for restraining the movement of the roll balls, the problem that the roll balls are difficult to position in the testing process is solved, and therefore the characteristic data of the junction surfaces between the roll balls and the roller paths can be obtained. The device for testing the characteristics of the junction surfaces between the roll balls and the roller paths not only can provide a basis for the analysis of the characteristics of a junction part of guide rails, but also has significance in examining the correctness of a characteristic model of the junction surfaces between the roll balls and the roller paths.

The invention discloses a self-loading and unloading turnover box that comprises a turnover box body and a base, wherein the turnover box body is mounted on the base; the turnover box further comprises an expansion upper support arm, an expansion lower support arm, supporting leg shells and supporting leg guide columns; slideways are arranged at the upper end and the lower end of the turnover boxbody; the upper expansion support arm extends into the upper end slideway; the expansion lower support arm extends into the lower end slideway; a first driving mechanism is arranged between the expansion lower support arm and the lower end slideway; one end of the outer side of the expansion upper support arm and one end of the outer side of the expansion lower support arm are respectively connected with the supporting leg shells; the upper end of the supporting leg guide column extends into the supporting leg shell and is slidably connected with the supporting leg shell, and a second drivingmechanism is arranged between the supporting leg shell and the supporting leg guide column. Self loading and unloading of the turnover box body are achieved, the automation degree is high, the labor intensity is reduced, the structure is simple, and cost is low.

The embodiment of the disclosure discloses a method and device for predicting a target device, an electronic device and a storage medium. The method includes: acquiring a remote login log generated bya preset device in a network topology within a predetermined time period; extracting a preset feature attribute from the remote login log; processing the preset feature attribute by using a pre-trained device prediction model, and predicting whether the preset device is a target device in the network topology, wherein the target device is configured to manage multiple devices in the network topology. The method in the embodiment of the present disclosure can extract relevant features from a large number of remote login logs, and analyzes and processes the relevant features through the pre-trained device prediction model, and determines the target device having a control capability for other devices from a large number of devices.

The invention discloses an acquisition and positioning based indoor and outdoor combined navigation method and system. The method comprises the following steps: acquiring an indoor and outdoor 3D map and a plurality of POI positions in the indoor and outdoor 3D map; detecting the coarseness positions of a track contributor and a navigation user in the indoor and outdoor 3D map; acquiring the personal motion track of the track contributor; extracting the effective motion track from the personal motion track according to the coarseness position of the track contributor in the indoor and outdoor 3D map and the plurality of POI positions in the indoor and outdoor 3D map, and storing the effective motion track; and receiving a navigation request of the navigation user, and generating a navigation path and sending the navigation path to the navigation user according to the coarseness position of the navigation user in the indoor and outdoor 3D map and the navigation request of the navigation user.

The invention relates to a clamping device and a suturing device. The clamping device comprises a sheath tube assembly and a clamping assembly, wherein the sheath tube assembly comprises an inner tubeand an outer tube; the outer tube is arranged outside the inner tube in a sleeving manner and can axially move relative to the inner tube; the clamping assembly is connected with the far end of the inner tube or is arranged in the position, close to the far end, of the inner tube; the clamping assembly comprises a first clamping unit and a second clamping unit which are oppositely arranged; an included angle is formed between the first clamping unit and the second clamping unit; and the included angle can be adjusted. According to the suturing device, the clamping process of a secondary septum or a primary septum can be effectively completed, and follow-up operation is facilitated.

The invention relates to a clamping device and a suturing device. The clamping device of the present invention includes a sheath assembly and a clamping assembly. The sheath assembly includes an inner tube and an outer tube. The outer tube is sheathed on the outside of the inner tube and can move axially relative to the inner tube. The clamping assembly and the inner tube The distal end is connected or the clamping assembly is arranged at a position close to the distal end of the inner tube, and the clamping assembly includes a first clamping unit and a second clamping unit oppositely arranged, the first clamping unit and the second clamping unit There is an included angle between the clamping units, and the size of the included angle can be adjusted. According to the suturing device of the present invention, the clamping process of the septum secondary or the septum primary can be effectively completed, and subsequent operations are facilitated.

The invention discloses a locking steel pipe pile cofferdam and a construction method thereof, and relates to the field of bridge engineering. The cofferdam includes a plurality of interlocking steel pipe piles that are closely connected in sequence. Internal supports are provided in the foundation pit surrounded by the plurality of interlocking steel pipe piles. There are bored piles in the cofferdam, and the cofferdam also includes The concrete pad is arranged between the inner support and the locked steel pipe pile. The method includes the following steps: assembling the inner support, fixing the inner support to be lowered on the suspension system; lowering the inner support to be lowered to the design position through the suspension system; Concrete pads for construction. In the invention, a concrete pad is arranged between the locked steel pipe pile and the inner support, which improves the pressure bearing capacity between the locked steel pipe pile and the inner support, and has convenient construction and high construction efficiency.

The invention discloses an inclined hole cutting assembly. The inclined hole cutting assembly comprises a cutting head, a horizontal movement system and a vertical movement system. The horizontal movement system comprises a first shell. A first worm wheel and worm mechanism is arranged in the first shell, a worm wheel of the first worm wheel and worm mechanism is matched with a horizontal lead screw, and one end of the horizontal lead screw is connected with a numerical control machine tool. The vertical movement system comprises a second shell connected with the first shell. A second worm wheel and worm mechanism is arranged in the second shell, a worm wheel of the second worm wheel and worm mechanism is matched with a vertical lead screw, the lower end of the vertical lead screw is connected with a cylinder, a rotating shaft penetrates through the cylinder, one end of the rotating shaft stretches out of the cylinder, a clamping device is arranged at the stretching-out end of the rotating shaft, and the cutting head is clamped to the clamping device. The invention further provides a method for machining inclined holes through the inclined hole cutting assembly. A program set with the original cutting head of the numerical control machine tool as the reference can be directly utilized, cutting can be achieved by adjusting the position and angle of the assembly, positioning is accurate, the number of procedures is small, and machining efficiency is high.

The invention discloses a video flame detection method, device and system. The method comprises the following steps: extracting a flame suspected area in a video image; carrying out outline extraction processing and image segmentation processing on the flame suspected area to obtain a plurality of flame suspected small rectangular areas; and carrying out flame area extraction on the flame suspected small rectangular areas by the fluctuation characteristics of light stream and flame, and judging whether a video image has flames or not according to an extraction result. The method can obtain the flame suspected area by foreground segmentation and color information, utilizes the light stream to detect the motion characteristics of the flame, judges whether the area has the flame or not through the fluctuation situation of a flame angular point so as to overcome the defects of low video flame detection accuracy, high false alarm rate, high influence degree by noise and the like in the traditional flame detection technology, and solves the problems of poor flame characteristic extraction effect and difficulty in flame positioning in the prior art.

The invention discloses a positioning method and a positioning server suitable for indoor complex environments. The positioning method forms a positioning network through a plurality of positioning transmitting devices, obtains the first position coordinates and the list of initial positioning transmitting devices through the positioning network, and then passes the positioning The terminal obtains the user's PDR information to determine whether the user has moved. If not, it will re-judge whether the user has moved. If so, it will obtain the temporary transmitter list through the positioning network, and determine whether the temporary transmitter list and the initial positioning transmitter list are If there is a difference, if not, re-judgment whether the user has moved, if so, obtain the second position coordinates through the positioning network, and correct the second position coordinates through the PDR information to generate the third position coordinates. In the present invention, the positioning is carried out through a positioning network composed of several positioning transmitting devices, and the positioning terminal is used for correction, so as to solve the problem of difficult positioning in indoor complex environments.

The invention relates to the technical field of clamping seat profiles, in particular to a clamping seat profile capable of improving the mounting efficiency of an air opening. Comprising a clamping seat body, two positioning grooves, four clamping seat screw holes, two supporting frame screw holes, an injection molding clamping seat groove, two accessory grooves, two auxiliary plates, a plurality of first clamping grooves, two rotating rollers, two rotating cylinders, two binding belts, two auxiliary grooves, two mounting blocks, two connecting shafts, two mounting sleeves, two movable rods, two mounting shafts and two first protection plates. By arranging the clamping base screw hole, the supporting frame screw hole, the injection molding clamping base groove, the accessory groove and the positioning grooves, the injection molding clamping base groove is mainly used for being matched with an injection molding clamping base, detachable and slidable containing is achieved, and the positioning grooves in the two sides can be used for assisting in screw installation; the tuyere mounting and positioning function is improved, mounting is more convenient, and time and labor are saved.

The invention discloses an image recognition method for an optical splitter port line and a two-dimensional code label thereof, comprising three steps of A, image collection, two-dimensional code label detection, and two-dimensional code positioning and identification. The present invention intelligently recognizes the two-dimensional codes on the label on the image splitter and the port line, and corresponds to the port, effectively manages resources and intelligently processes them, while manual identification records need to scan and record each two-dimensional code and correspond to the two-dimensional code. To the corresponding port, it solves the tedious work of manual entry, and only needs to take a photo with the mobile phone; through the algorithm of deep learning, it solves the problem that multiple QR codes are difficult to locate under the complex background; the image is enhanced, It solves the problem that mobile phones cannot scan and recognize QR codes; solves the technical bottleneck of recognizing multiple QR codes with one picture.

The present application provides a method and apparatus for locating target data based on user request sequence. Through this method, the key information is firstly extracted from the target Web page according to the user's needs, and then the returned results of the request sequence generated by the user in the operation process of reaching the target Web page are indexed, and the key information is used as a keyword in the index. The target request is determined according to the score of the retrieval result, and finally the position of the target data in the returned result of the target request is located according to the return result format of the target request. The method can solve the problem that the target data is difficult to locate when extracting the data of the dynamic web page, provide technical support for the extraction and opening of the data of the dynamic web page, and improve the efficiency of extracting and opening the data of the dynamic web page.

The present invention provides a method, device, storage medium and electronic equipment for locating vulnerable nodes in a power grid, wherein the method includes calculating the mutual impedance between each node in the power grid and a harmonic source node, and obtaining the current amplitude of each harmonic source. , according to the current amplitude and mutual impedance, the harmonic voltage generated by each node in the power grid is obtained, and the node corresponding to the maximum value of the harmonic voltage is regarded as the vulnerable node of the power grid. Through the method for locating vulnerable nodes in the power grid of the present invention, the influence of each harmonic source on the node is considered for each node in the power grid, which is conducive to quickly searching and completing the nodes sensitive to the influence of harmonics in the power grid, and is effective for harmonics. Governance is of great significance, and solves the problem of difficulty in locating vulnerable nodes in the power grid when multiple harmonic sources work together in the prior art.

The invention relates to a rubber-coated metal winding of a transformer and a rubber-coating method thereof. In the invention, metal coils that can be stacked and assembled are formed by stamping metal sheets in a plane spiral manner, and the formed metal windings are increased by stacking and welding the metal coils. The number of turns, and the metal winding of the transformer is formed by injection molding the metal winding at least twice, which solves the problem that the metal winding is difficult to position in the mold, and solves the problem of the existing rubber-coated metal winding. The product is not resistant to high voltage; since the rubber-coated metal winding of the transformer is injection-molded with at least two layers of plastic, it has good insulation performance, can withstand high temperature and high pressure, and has good safety performance to meet the needs of transformers. Requirements and safety requirements of UL60950.

The test device for the characteristics of the joint surface of the ball and the raceway includes two semi-cylindrical raceways placed perpendicularly to each other, balls are placed in the raceway, the raceway is set on the test piece, and the test piece is connected to the displacement sensor and the force sensor. The test piece includes an upper test piece and a lower test piece. The upper and lower test pieces are cylindrical and coaxially arranged. Two less semi-cylindrical raceways are respectively arranged in the middle of the upper test piece and the lower test piece. The displacement sensor And the force sensor is connected with the upper test piece. The invention constrains the movement of the balls by placing the two raceways perpendicular to each other, which solves the problem that the balls are difficult to locate during the test, so that the characteristic data of the joint surface between the balls and the raceways can be obtained. The invention can not only provide a basis for analyzing the characteristics of the joint part of the guide rail, but also has important significance for evaluating the correctness of the characteristic model of the joint surface formed between the ball and the raceway.