130results about How to "Solve positioning difficulties" patented technology

The invention discloses an AGV navigation control method based on two-dimension code image tags. The AGV navigation control method comprises the following steps: 1) obtaining the range of each pixel point in scanned images of two-dimension code tag scanners; 2) obtaining corresponding IDs and positions of the two-dimension code image tags in a coordinate system of the images themselves according to the scanned images of the two-dimension code tag scanners; 3) an AGV receiving navigation path instructions sent by a scheduling center; 4) the AGV sequentially establishing local navigation coordinate systems according to the navigation path instructions and calculating initial positions of the AGV in the local navigation coordinate systems; 5) planning an arc track between two two-dimension code image tags of the AGV in sequence; and 6) calculating the control quantity of the AGV according to the planed arc radius to enable the AGV to drive to each two-dimension code image tag in a navigation path instruction sequence in sequence, and thus the navigation path instruction is finished. The method can reduce production cost, reduce on-site implementation difficulty and improve guiding flexibility.

The invention discloses a time division-synchronization code division multiple access (TD-SCDMA) system-based method for accurately positioning underground personnel. The method comprises the following steps of acquiring time of arrival (TOA) and an angle of arrival (AOA) of a signal at a base station; de-noising a TOA value by using an improved kalman filtering algorithm; calculating a time difference of arrival (TDOA) value according to the de-noised TOA value; estimating the position of a mobile station by using a TDOA / AOA mixed Chan algorithm and a TDOA / AOA mixed Taylor algorithm; performing first data fusion on a position estimated value by using a weighted residual method to obtain a new position estimated value; and performing second data fusion on the position estimated value by using Bayesian inference to obtain the final position estimated value. By the method for accurately positioning the underground personnel, the advantages of a TD-SCDMA system and the superiority of the data fusion are utilized, a TDOA / AOA mixed data fusion positioning algorithm is adopted, the positioning accuracy is high, and the problem that the personnel in an underground coal mine are hard to position is solved.

Disclosed is a multilevel multi-curve single-layer welding ball steel structure net rack. Each layer of the multilevel multi-curve single-layer welding ball steel structure net rack comprises a structurally separated rod and a hollow ball which are connected into a whole in a welded manner; an elastic support positioned on a reinforced concrete vertical column is connected with each layer of the multilevel multi-curve single-layer welding ball steel structure net rack through a net rack supporting part; the elastic support is capable of inching in a certain direction or an optional direction, and the net rack further comprises a cable-supported structure consisting of a cable-supported structure support, a cable-supported ball, a pull cable and a cable-supported ball supporting rod. The net rack is unique in appearance and suitable for serving as a building steel structure support which has high requirements on the appearance of a building, is unique in appearance and needs to display arc shapes, line shapes, shell shapes and staggered levels, and the construction method of the net rack can be used for effectively controlling space coordinates and positional accuracy of components of the net rack, structural stability and structural appearance diversity of the net rack during installation, so that the requirements of a building structure on high, large, difficult and multidirectional change can be met.

The invention discloses a waterproof structure for a joint of an exterior wall of a fabricated shear wall. The waterproof structure comprises a horizontal joint structure, comprising a water retainingplate, a water retaining rod, a first outer plugging rod, a first pressure reduction chamber and a drainage channel, a first inner plugging rod, a high-strength non-shrinkage grouting material, a grouting sleeve, a schematic vertical reinforcing steel, a lower prefabricated wall, an upper prefabricated wall, a prefabricated laminated board and a cast-in-situ floor layer, four waterproof measuresincluding construction waterproofing, material waterproofing, construction waterproofing and structure waterproofing being provided from the outside to the inside; and a vertical joint structure, comprising a building sealant, a second outer plugging rod, a second inner plugging rod, a positioning protrusion, a positioning recess, a second pressure reduction chamber and a drainage channel, a leftprefabricated wall, a right prefabricated wall, a cast-in-situ connecting portion and a water-break construction, the second outer plugging rod and the second inner plugging rod being positioned according to the positioning protrusion and the positioning recess. The waterproof performance of the exterior wall of the fabricated building can be improved, the construction efficiency can be effectively improved, and the structure is high in applicability and is simple and easy to implement.

The invention relates to a household appliance control system and a data analysis method thereof. The data analysis method comprises the steps that a far-end server receives geographical location information of a control terminal from the control terminal of a household appliance device; the far-end serve obtains the distribution situation of the household appliance device according to the received geographical location information of the control terminal. The household appliance device can be accurately positioned by means of the household appliance control system and the data analysis method.

The invention discloses an insulator chain automatic positioning method based on binary image shape features and belongs to the field of image processing techniques and power transmission and transformation equipment running state maintenance. The method comprises the following specific steps: 1) performing morphological filtering and micro-region removing processing on a binary image; 2) performing digitalization description on three shape features of an insulator chain, and processing the image based on the above to remove the regions not satisfied with the three shape features and keep the regions satisfied with the three shape features; and 3) utilizing a minimum bounding rectangle to mark the regions satisfied with the shape features of the insulator chain and thus positioning is achieved. The problem that the positioning of the insulator chain in a complicated-background aerial image is difficult is solved by fully utilizing the shape features of the insulator chain and by adopting the method based on binary image shape feature description. The method is practicable and feasible; better positioning effect is achieved; time needed is short; no labour is needed; and the method provides a certain reference meaning for scheme design of related problems.

The invention discloses a force servo-controlled power-driven manipulator comprising a manipulator body with a hoisting hand, a control hand and a force feedback control system connected with the control hand; wherein the control hand comprises at least one pulling pressure sensor; the force feedback control system comprises at least one force servo controller, at least one driver and at least one electric motor. The pulling pressure sensor in the control hand receives a signal of a control force and transmits the signal to the force servo controller in the force feedback control system, the force servo controller starts the driver according to the magnitude and the direction of the control force, the driver drives the electric motor to drive the manipulator body to move, and then a hoisted piece hoisted on the hoisting hand of the manipulator body moves on the basis of the speed and the direction controlled by the force servo controller. The pulling pressure sensor can reflect the control requirement of an operator on the power-driven manipulator in real time so that the power-driven manipulator acts like the hand of the operator per se, and the force servo-controlled power-driven manipulator has the characteristics of accuracy in location, sensitivity in response and smoothness and steadiness in motion and is free of impacting shakes.

The invention discloses a character and background adhesion noise elimination method for an image OCR system, comprising the following steps: (1) setting the effective range of the stroke length of a character to be identified; (2) selecting an image containing the character to be identified in a natural environment, and calculating the difference boundary diagram of the image by means of mean difference template; (3) thresholding the obtained difference boundary diagram of the image to be identified to form a ternary-valued boundary diagram of the image to be identified; and (4) carrying out searching in the ternary-valued boundary diagram according to the angle-of-inclination range and the linear boundary. By using the character and background adhesion noise elimination method for the image OCR system of the invention, the problem that a character with adhesion noise is hard to position for the existing OCR application system is solved in a complex and changeable natural environment, the character position can be extracted accurately, and the real-time requirements of engineering application can be satisfied.

A circuit board test platform comprises a pressing part and a bearing part. The pressing part comprises an air cylinder module and a needle plate module, a first probe is fixed on the needle plate module, and the air cylinder module drives the needle plate module to move in the direction at least comprising the axial direction of the first probe; the bearing part comprises a carrier plate module, a pre-pressing block module and a microneedle module. The pre-pressing block module and the microneedle module are arranged on the carrier plate module, a second probe is arranged on the microneedle module and extends out towards one side close to the needle plate module, and the pre-pressing block module is arranged on one side, close to the needle plate module, of the microneedle module. According to the invention, position offset of the to-be-tested product caused by the downward pressing process of the needle plate module can be prevented, manual intervention is reduced, and the test efficiency and the test quality are improved.

The invention discloses a shied cutter head abrasion repairing construction method in a tunnel. The method comprises the steps that first, cutter head repairing working space in the tunnel is digged; second, cutter head outer edge abrasion is repaired in the tunnel, specifically, 201, outer edge big ring abrasion is repaired, 202, notch ring abrasion is repaired, and 203, inclined-plane folded plate abrasion is repaired; and third, cutter head panel abrasion is repaired in the tunnel, specifically, 301, big scraper tool apron abrasion is repaired, 302, outer ring small scraper tool apron abrasion is repaired, and 303, abrasion of a hob knife box weld seam is repaired. The design is novel, cutter head abrasion repairing in the tunnel is conducted utilizing steadiness of a tunnel face in a whole fracture surface hard rock position, ground well opening is avoided, cost is saved, meanwhile, a scraper tool apron which is prefabricated and designed with a positioning through hole is adopted to cover welding construction, the situation that location is difficult when an original heavy scraper tool apron is mounted is avoided, so that cost is saved, the construction period is shortened, and replacing of the scraper tool apron in small space is convenient and feasible.

The invention relates to a multi-vehicle cooperative positioning platform and positioning method under a limit working condition. The positioning platform comprises a communication device, a vehicle-mounted device, roadside devices and a satellite group which cooperate with one another to realize precise positioning of vehicles under a limit working condition. The communication device provides a real-time signal for a vehicle located in a network; the vehicle-mounted device is installed on the vehicle located in the network and receives information of the communication device and position information of other adjacent vehicles in real time; the roadside devices are arranged on two sides of a road and provide information of fixation objects on two sides of the road for the vehicle-mounted device in real time; the satellite group provides road-level vehicle positioning for the vehicle located in the network on high-quality road conditions, provides absolute positioning for the vehicle located in the network under a limit working condition, and provides auxiliary positioning for the vehicle-mounted device and the roadside devices at the same time. According to the invention, road andenvironment sensing and accurate positioning can be completed in real time under the limit working condition, and a powerful basis is provided for the development of intelligent net connected vehiclesand the improvement of a traffic road system.

The embodiment of the invention relates to an LED spliced screen structure which solves the technical problems that in the prior art, due to the design that an LED spliced screen or a box body on the back of an LED display module needs to be disassembled to maintain the display module which goes wrong, positioning of the display module is difficult, time is wasted, the maintenance efficiency is low, and display of the LED spliced screen is not complete due to the fact that a plurality of display module bodies of the LED spliced screen are not located on the same plane. The LED spliced screen structure comprises a movable module movably connected with a positioning module, the movable module comprises an adjusting seat and a fixing component, a clamping component is arranged at the bottom of the fixing component, holes are formed in the adjusting seat and are used for longitudinal adjusting components to penetrate through to be connected with the fixing component, and thus the adjusting seat can conduct up and down position moving relative to the fixing component in the perpendicular direction. An elastic clamping seat is installed in a box body of the positioning module, and the elastic clamping seat and a clamping component arranged at the bottom of the fixing component are clamped through the cooperation of elastic force.

The invention provides a turnover box automatic positioning method based on image geometrical characteristics, and the method comprises the steps: S1, obtaining a vertical edge and a horizontal edge according to an original image, and obtaining a region of interest (Roi image); s2, carrying out binarization processing; s3, removing noise points; s4, carrying out straight line detection on the binary image by adopting a Hough transformation strategy to obtain a plurality of approximate straight lines, and then fusing the approximate straight lines into a fused straight line by adopting a straight line fusion method; s5, obtaining to-be-selected edges, if the number of the to-be-selected edges is zero, returning to the step S2, reducing the offset C, and continuing iteration until at least one to-be-selected edge is obtained; s6, determining the color of the local image to filter out false edges; and S7, integrating the edges, and calculating a central point and a rotation angle to realize positioning. The turnover box can be positioned in the visible light image, consumed time is short, and manual participation is not needed.

The invention provides a method, a device and equipment for identifying a poor-quality terminal and a storage medium, which are used for solving the technical problem of low accuracy of identifying the poor-quality terminal in the prior art. The method comprises the steps of obtaining a plurality of MDT data samples on a to-be-analyzed area; wherein each MDT data sample in the plurality of MDT data samples comprises longitude and latitude, altitude and signal quality measurement values of a user terminal corresponding to each MDT data sample; establishing a three-dimensional grid model on theto-be-analyzed area, and positioning each MDT data sample into a corresponding three-dimensional grid according to the longitude and latitude and altitude of each MDT data sample; and determining a poor-quality terminal on the to-be-analyzed region according to the signal quality measurement values in the plurality of MDT data samples by utilizing the three-dimensional grid model, and positioningthe poor-quality terminal.

The invention discloses a cable conductor twisting tension controlling and positioning device which is structurally characterized by comprising a cable conductor twisting tension controlling device and a cable conductor twisting positioning device; two wire-passing guide roller matrices are arranged on an angle iron frame base; a pressing roller is mounted at the lower end part in the middle of the angle iron frame base; a hysteresis tension guide roller is arranged at the upper end of the pressing roller; a magnetic powder tension brake is arranged at one end of the hysteresis tension guide roller; an extension rod is mounted at the upper end of a wire collecting plate square tube rack; the other end of the extension rod is fixed on a twisted bow take-up device; a wire collecting mold is arranged on the twisted bow take-up device; a wire collecting guide wheel positioning matrix is mounted on the extension rod. The cable conductor twisting tension controlling and positioning device has the following advantages: (1) the problem that when a plurality of single conductors are twisted, the tensions of all conductors are different and cannot be controlled uniformly by the same device can be solved; (2) quality problems, such as poor roundness and wire jumping of a twisted conductor bundle caused by poor payoff tension, can be solved.

The invention relates to an inner box moulding device and method for producing an inner box provided with a liner. The inner box moulding device comprises a lifting assembly and a mold assembly, wherein the mold assembly comprises a moving mold mounted on the lifting assembly, a fixed mold opposite to the moving mold, and an auxiliary mold and an auxiliary mold driving structure which are arranged around the fixed mold; the lifting assembly drives the moving mold to be compacted with an end face, which is opposite to the moving mold, of the fixed mold, and the auxiliary mold driving structure pushes the auxiliary mold to be compacted with the side faces of the moving mold and the fixed mold. The inner box moulding device and method provided by the invention can be used for manufacturing square inner boxes which are provided with liners and are in different shapes and sizes. The inner box moulding device and method not only can improve the degree of automation in a production process, but also can improve the production efficiency and yield and reduce the production cost.

The invention provides a power distribution network fault point positioning method and system and electronic equipment, and relates to the field of power distribution network fault diagnosis; the method comprises the steps of a segmenting step: segmenting a power transmission line into a plurality of sections, obtaining the length, unit impedance and system impedance of each section, and calculating the tail-end short-circuit current of each section; a judgment step: according to the pre-determined tail-end short-circuit current and the actual fault current of each section of the set point circuit, judging the section where the fault point is located; and a positioning step: according to the line impedance, unit impedance and the actual fault current of the section where the fault point islocated, calculating the specific position of the fault point in the section where the fault point is located. According to the method, the system and the electronic equipment, the automation degreeof fault diagnosis of the power distribution network is improved, and the problem that fault points are difficult to locate when a complex power distribution network breaks down is solved.

The invention relates to the technical field of distribution automation fault research and judgment, and discloses a fault research and judgment method based on an edge calculation FTU and a fault indicator, which comprises the following steps: acquiring recording data of a plurality of cycles before a fault recording starting moment and a plurality of cycles after the fault recording starting moment, and calculating fault waveform samples collected by the FTU based on the edge calculation; a first half-wave waveform research and judgment criterion is used as a main criterion of internal and external faults, a sample waveform correlation criterion is used for checking and rechecking internal and external recording samples of a first half-wave waveform research and judgment criterion conclusion, and the first half-wave waveform research and judgment criterion is used as an auxiliary criterion of first half-wave waveform research and judgment, comprehensive research and judgment are carried out, and a position node where a single-phase earth fault occurs is determined. Compared with the prior art, the method has the advantages that the accuracy of fault detection in different single-phase earth fault environments can be improved to the greatest extent by utilizing mutual complementation and mutual verification of two research and judgment criteria.

The invention discloses a method and device for monitoring the abnormality around a dam based on an unmanned aerial vehicle, belonging to the technical field of image processing. The device comprisesUAV unattended front-end equipment, a remote control center, a communication network, a data processing module, an algorithm module and a processing center. At first, that unmanned aerial vehicle (UAV) fly with the high-definition camera device, and the images of the designated position are collect and sorted; Each kind of image data is divided into training set and test set, and the training setis pretreated, and then the multi-scale fusion of convolution neural network is carried out to obtain the classification results. For the final classification results of each test set, the feature points of abnormal position are marked, and the training set and test set are divided again. Training the classification model of the training set image of the marked feature points; The test set is inputted into the classification model, and each feature point in each image is located in the abnormal situation. The invention improves the classification accuracy and the positioning accuracy, and solves the problem that the manual patrol inspection method is time-consuming and labor-consuming.

The embodiment of the invention discloses an equipment position information recording method and device. The equipment position information recording method is applied to first electronic equipment and is adopted to record the position of second electronic equipment, wherein the first electronic equipment can move relative to the second electronic equipment. The method includes the steps that the distance between the first electronic equipment and the second electronic equipment is detected, and information of a first position where the first electronic equipment is located currently is acquired when it is determined that the distance between the first electronic equipment and the second electronic equipment reaches a first preset threshold value; the first position is recorded as an approximate placing position of the second electronic equipment.

The invention discloses a vehicle-mounted positioner and a mining locomotive comprising the vehicle-mounted positioner and belongs to the field of positioning of mining locomotives. The vehicle-mounted positioner comprises a shell body, a circuit board and a battery; the circuit board and the battery are arranged in the shell body; the battery is connected with the circuit board and supplies power to the circuit board; the circuit board is provided with an ultra-wideband module; the ultra-wideband module is connected with an antenna; antistatic paint is coated on the shell body; the antenna is packaged in an antenna shell through waterproof glue. The vehicle-mounted positioner has high positioning precision, wide signal coverage range, wide transmission bandwidth and good expandability; safety and good waterproof effect of the locomotive under a coal mine are guaranteed.

The invention provides a device for sewing creases of elastic trouser waists and an elastic trouser waist sewing method and aims at solving the problem that the cost for sewing the creases of the elastic trouser waists is high and the accuracy is low in the prior art. The device for sewing the creases of the elastic trouser waists comprises a sewing machine and a stretching device which are installed on a face plate, wherein the stretching device comprises a positioning mechanism fixed to the face plate and an adjusting mechanism for tensioning the elastic trouser waists. The positioning mechanism comprises a guide rail, the adjusting mechanism comprises a length adjusting member for adjusting the tension of each trouser waist and a position adjusting member for adjusting the positions of the trouser waists, and the length adjusting member and the position adjusting member are respectively and correspondingly installed at the two ends of the guide rail. The device has the advantages that the single-row guide rail is adopted, the problem that the positioning for installation is difficult due to a split guide rail in the prior art is avoided, the whole sewing device adapts to all sizes of trouser waists and is convenient to adjust, improvement can be performed on the basis of an existing lockstitch sewing machine, and the cost is greatly saved.

Embodiments of the invention disclose an information management method and apparatus for an ERP system. The information management method and apparatus are used for solving the problem of difficulty in positioning a script file of an ERP system in the prior art to improve the management efficiency. The method provided by the embodiment of the invention comprises: traversing control files in a control system and analyzing the control files to obtain an executive sequence of script files in the control files; according to the executive sequence, analyzing the script files in the control files to generate corresponding structural description information and relevant file information; and combining the script files with the corresponding structural description information and relevant file information to obtain analyzed information, and storing the analyzed information into a database.

The invention relates to the technical field of tunnel construction, in particular to a water stop clamping tool, a tunnel longitudinal water stop structure and a construction method. The water stop clamping tool comprisesa fixing part for mounting on a tunnel side wall template, and a connecting part connected with the fixing part and extending to be above a concrete pouring area; the connectingpart is provided with a mounting structure for connecting with a metal-plate-shaped water stop, and the relative position between the water stop and the connecting part can be adjusted, so that the water stop corresponds to a construction joint after the water stop is connected with the connecting part. The water stop clamping tool is arranged on an inverted arch trestle template, water stop partsare fixed by the connecting part, and the effective adjustment is carried out through the connecting part, thereby solving the problem of difficulty in positioning; and the water stop parts are changed to solve the problems of severe distortion and inconvenience in splicing of the existing water stop parts and achieve the purposes of accurate positioning, straightness and no distortion, and convenient connection of the water stop parts, and the construction quality and the construction safety of the tunnel waterproof construction are ensured.

The invention discloses an unmanned aerial vehicle inspection target positioning method for a fixed-axis photovoltaic scene. According to the method, the minimum photovoltaic unit in the visible lightimage is subjected to detection, positioning, tracking, logic number mapping and other processing, and on the basis of dual-light image registration, the function of defect target positioning in unmanned aerial vehicle fixed-axis photovoltaic scene inspection is achieved. According to the invention, the problem of positioning to the minimum unit is solved, the requirements on the positioning precision of the unmanned aerial vehicle and the holder in the image acquisition process are reduced, and the operability of photovoltaic inspection of the unmanned aerial vehicle and the timeliness of positioning defective plates by workers are improved.

The invention discloses a mounting structure for a light incidence end face of an automobile light guide bar, and belongs to the technical field of automobile accessories. The mounting structure comprises a lamp shell which is provided with a through hole, a light source module is arranged on one side of the through hole, and the light guide bar is arranged on the other side of the through hole; a fixing device used for clamping the end face of the light guide bar is arranged on the inner side wall of the through hole, and clamping points used for clamping the fixing device are arranged on the side of the light guide bar of the through hole. The fixing device comprises a fixing portion and a clamping portion, wherein the fixing portion is clamped on the inner side wall of the through hole, and the clamping portion extends to the inner side from the fixing portion and is clamped with the end face of the light guide bar. The mounting structure is simple and convenient to mount; the problem of a power line when the light guide bar and the light source module are mounted together is solved through the fixing device, the problem that the end face of the light guide bar is hard to position when the light guide bar and a lamp shell subassembly are mounted is solved, and the production efficiency and the product stability are improved.

The invention discloses a novel lifesaving and position indicating lamp with a positioning communication function and a control method of the novel lifesaving and position indicating lamp. The novel lifesaving and position indicating lamp comprises a non-conductive shell, a compass positioning chip, a compass communication chip, a microprocessor and a luminous body, which are arranged in the shell, a rechargeable battery pack which is used for supplying power to the microprocessor, the luminous body and the compass positioning module, a battery which is used for supplying power to the compass communication module, a memory, a three-axis acceleration sensor, a power button which is arranged on the shell, a display, a state indicator lamp, a falling-into-water switch, an RF (radio frequency) antenna which is connected with the compass communication chip and a luminous body switch which is electrically connected with the luminous body, wherein the microprocessor is electrically connected with the compass positioning chip, the compass communication chip, the state indicator lamp, the power button, the memory, the display, the three-axis acceleration sensor and the luminous body respectively. The novel lifesaving position indicating lamp has the characteristics that smooth linkage between long lifesaving distance and short lifesaving distance is realized; the lifesaving efficiency is improved; the survival rate of a person falling into water is improved, and the problem of difficulty in positioning of the person falling into the water is solved.

The invention discloses a real-time gesture recognition method and system based on machine vision. A gesture recognition thought of four steps of human body joint point recognition, hand positioning,hand joint point recognition and gesture recognition based on human body joint point recognition, hand joint point recognition based on hand positioning and gesture recognition based on hand joint point recognition is provided. A neural network structure is designed according to task characteristics of human body joint recognition, hand joint recognition and gesture recognition, and meanwhile, ina link of realizing gesture recognition through hand joint point recognition, a gesture training data generation mode is designed and gesture recognition is realized through transfer learning. Finally, through lightweight design of the network and design of a data transmission structure of the system, the system can achieve real-time gesture and hand joint recognition.

A polyhedron ball-and-stick model comprises a plurality of geometric model polyhedrons representing atoms and cylindrical connecting rods with different lengths representing connecting keys and being connected with the atoms in a space-filling model, wherein the geometric model polyhedrons comprise regular polyhedrons formed by congruent regular polygons, semi-regular polyhedrons formed by two or more than two regular polygons and polyhedrons formed by other polygons, the center position of each surface of each polyhedron is provided with a circular hole groove having the same diameter and the same depth, and the diameter of each circular hole groove is identical with the diameter of the end portion of each cylindrical connecting rod to allow the end portions of the connecting rods can be inserted into the circular hole grooves on each surface of the polyhedrons. The problem is solved that the spherical circular hole groove is difficult to locate in a traditional ball-and-stick model, and the polyhedron ball-and-stick model can be more rapidly and accurately assemble a desired space-filling model.