849results about How to "Realize automatic positioning" patented technology

The invention discloses a PSD (Position Sensitive Detector)-based industrial robot self-calibration device, wherein two PSDs are arranged on two plates of a V-shaped clamp respectively; the V-shaped clamp is placed in an achievable range of a robot; when the robot is at different positions, a projection light spot and a reflection light spot of a laser beam emitted by a laser which is fixedly arranged at the tail end of the robot are positioned at positions of central points of the two PSDs respectively; and self-calibration of zero offset of the robot and self-calibration of a spatial posture are performed through two virtual constraint lines. The self-calibration device has a simple structure and is easy to mount and operate and high in positioning accuracy, and the self-calibration of the spatial posture and the zero offset of the robot can be simultaneously realized; and the invention also provides a PSD-based industrial robot self-calibration method.

The embodiment of the invention provides a network fault diagnosis method and device. Automatic locating of network faults can be realized without manual intervention; furthermore, fault root causes can be determined; and thus, automatic fault diagnosis is realized. The method comprises the steps of: acquiring log, alarm, configuration and KPI data of network elements, network management equipment and monitoring equipment, and detecting an abnormal network element and abnormal information according to the acquired data; according to the abnormal information and the pre-stored corresponding relationship, determining a first fault event; according to the first fault event and a pre-stored fault rule library, determining a first fault rule; and, acquiring the real-time data of the abnormal network element, confirming the suspected fault event in the first fault event and a second fault event, performing logic calculation according to the suspected fault event and second fault event confirmation result and the fault rule, and determining root causes causing faults of a network system. The network fault diagnosis method and device provided by the invention are applied to the technical field of computers.

The invention provides a full-automatic multifunctional cap screwing machine. A power transmission device, a cap screwing assembly, a bottle supply device, a bottle guide device, a bottle feeding star wheel device, a bottle stopping device, a bottle discharge star wheel device, a cap supply device, a bottle output device, a lifting adjusting device and a removing mechanism are included and are arranged on a rack, and the cap screwing assembly comprises a main shaft, a hollow shaft sleeve, an upper shaft sleeve, a first lead screw, a bearing pedestal, a bottle supporting plate, a bottle driving plate, a bottom flower plate, a middle flower plate, a top flower plate, a supporting plate, a lifting portion, a cap grabbing and screwing portion, a transmission portion, a pipe clamping portion, a main gear, a cam, a lower fixing ring, a middle fixing ring and a stand column. PLC electrical control is adopted in the full-automatic multifunctional cap screwing machine, and cap supply, cap grabbing and cap screwing are completed at one step. Bottle caps are automatically located, the screwing force of the bottle caps is adjustable, and the full-automatic multifunctional cap screwing machine has the advantages of being high in automation degree, wide in product application range and the like.

The invention discloses automatic adhesive-dispensing pressure-maintaining equipment. The automatic adhesive-dispensing pressure-maintaining equipment comprises an equipment machine table, a rotary workbench, as well as a first loading mechanism, a second loading mechanism, an adhesive-dispensing mechanism, a CCD detection mechanism, a pressure-maintaining mechanism, a first carrying robot and a second carrying robot which are sequentially and circumferentially arranged at the periphery of the rotary workbench, wherein the rotary workbench comprises a small rotary disc installed on the equipment machine table and a large rotary disc arranged at the periphery of the small rotary disc in a sleeved manner; a plurality of rotary disc jigs are arranged on the large rotary disc along the same circumference in a manner of uniform distribution; the adhesive-dispensing mechanism is configured to comprise a three-axis displacement device, a base, a needle barrel and an adhesive-dispensing needlehead; the adhesive-dispensing needle head is arranged on the three-axis displacement device through the base; the three-axis displacement device is used for driving the adhesive-dispensing needle head to move in X-axis direction, Y-axis direction and Z-axis direction; the needle barrel is arranged on the three-axis displacement device through the base; and the needle head of the adhesive-dispensing needle head is enabled to carry out adhesive-dispensing operation on a first material part to be treated. The automatic adhesive-dispensing pressure-maintaining equipment is high in adhesive-dispensing speed and efficiency, and stable in quality.

The invention provides a fault diagnosis method, a fault diagnosis device and a server. The fault diagnosis method comprises the following steps: establishing topology of a network system; obtaining alarm information in a network system; associating the alarm information with nodes in the topology, and determining a fault link; and determining a fault root node in the fault link according to a preset fault probability calculation rule. According to the method, the fault link is determined by associating the alarm information with the topology of the network system, so that the service influence range and degree caused by the alarm can be quickly obtained, the fault root node is determined in the fault link according to the preset rule, the automatic positioning and accurate positioning ofthe fault are realized, and the fault processing efficiency is improved.

The invention discloses a solar cell assembly frame and angle assembling device and a process thereof, and relates to a solar cell assembly device. The invention provides the solar cell assembly frame and angle assembling device with good comprehensive use performance, scientific and reasonable structure, simple process and high automation degree. The device comprises a rack; the center of the rack is provided with a lifting mechanism; the sides of the lifting mechanism are provided with locking and adjusting mechanisms respectively, fixed on the rack and connected with movable supports; the movable supports are provided with frame assembling cross beams for connecting an upper guide plate and a lower guide plate respectively, the lower guide plate fixes an angle assembling bottom plate of an angle assembling cylinder and is connected with the frame assembling cross beam, and the angle assembling bottom plate fixed on the inner round angle of the rack is provided with an angle assembling mechanism; the upper guide plate of the frame assembling cross beam is provided with a transmission mechanism consisting of a motor, a telescopic pipe and a driving wheel set, and the two corresponding sides of the transmission mechanism are provided with positioning guardrails; and the transmission mechanism is connected with a frame closing mechanism.

The invention discloses an anchor rod jacking mechanism which comprises a fixing mechanism, a supporting mechanism, a sliding block and a drill box mechanism. The fixing mechanism comprises a base, a stand plate and a connecting seat. Protrusions for fixing guide blocks are arranged on the stand plate. The supporting mechanism and the sliding block are in sliding connection with the opposite side faces of the stand plate through the guide blocks respectively. One end of the supporting mechanism and one end of the slide block are connected with base through telescopic oil cylinders. The drill box mechanism comprises a bottom frame and two independent drill box sliding seats. The bottom frame is connected with the base, and the drill box sliding seats can horizontally move along the bottom frame. When the drill box sliding seats move to the sliding block, the drill box sliding seats can be connected with the other guide rail face of the sliding block and slide along the sliding block. The invention further discloses an anchor rod jacking drilling carriage with a drilling machine. The anchor rod jacking drilling carriage comprises a four-wall anchor rod jacking drilling carriage body and a six-arm anchor rod jacking drilling carriage body. The drilling machine in the anchor rod jacking drilling carriage can work at the same time. Fast supporting operation on a top plate can be achieved, the structure is compact, and multiple functions are achieved. The anchor rod jacking mechanism and the anchor rod jacking drilling carriage operate in cooperation with heading equipment to complete the supporting and transferring function synchronously, operating personnel are greatly reduced, the labor intensity is lowered, and the supporting efficiency and safety are improved.

The invention discloses a control method for quickly and accurately positioning a steel coil dolly. The method comprises the following steps of: computing position setting values of a moving direction and a lifting direction of the steel coil dolly according to known equipment parameters and relevant parameters detected by a position sensor, designing a running speed slope curve of the steel coil dolly according to the position setting values and the production actual requirement, defining the proportional relation between the position and the speed, building a position closed-loop control system, eliminating the influence of the inertia of the steel coil dolly on the positioning precision by an inertia compensation method, guaranteeing the rapidity of a positioning process by a method for setting minimum speed, and finally carrying out PLC (programmable logic controller) programming design. The control method is high in control precision, quick in positioning process, smooth in speed change, and convenient for engineering application and equipment maintenance.

The invention discloses a welding seam tracking control device and method based on a cross laser device. The welding seam tracking control device is characterized by comprising a four-freedom-degree robot, a visual sensor and an integrated control cabinet; the four-freedom-degree robot comprises a working platform, a moving module, a Y-axis stepping motor, a bracket and a welding gun; the Y-axis stepping motor is fixed to a Z-axis slide table of a Z-axial moving module body, and a rotary shaft of the Y-axis stepping motor is parallel to the moving direction of a Y-axial moving module body; the bracket is used for fixing the visual sensor and the welding gun; the visual sensor comprises a camera and the cross laser device; and cross laser rays emitted by the cross laser device are irradiated on a to-be-welded workpiece and shot by the camera. The welding seam tracking control method is used for conducting vision measurement on fillet welding seams, three-dimensional position information of the welding seams, the inclined angle of the plane of the welded workpiece and the directions of the welding seams can be obtained accurately, and the welding gun can conduct high-precision self-adapting tracking control over the welding seams.

The invention discloses a pump cap screwing machine, which comprises a rack, a power transmission device, a cap screwing assembly, a bottle body supply device, a first bottle guide device, a second bottle guide device, a bottle feed star wheel device, a bottle stopping device, a bottle discharge star wheel device, a cap supply device, a rotating air path distribution device and a bottle output device, wherein the first bottle guide device is arranged at the tail of a screw rod and is matched with the bottle feed star wheel device, and a bottle feed inlet is formed between the first bottle guide device and the bottle feed star wheel device; the bottle feed star wheel device comprises a bottle feed turntable and a bottle feed rotating shaft which is movably connected with the power transmission device, the bottle feed turntable is provided with bottle feed clamping mounts and the bottle feed turntable is sheathed on the bottle feed rotating shaft; the second bottle guide device is matched with the bottle discharge star wheel device, a bottle discharge outlet is formed between the second bottle guide device and the bottle discharge star wheel device and the bottle stopping device is connected with the bottle discharge outlet. The pump cap screwing machine has the advantages that the structure is simple, the production efficiency is high, the processes of cap conveying, cap grabbing and cap screwing can be finished in one step, the effect of multiple products on one production line can be realized and the cap screwing effect is good.

The invention discloses management method and system of farming information collection and safe production of fruit-and-vegetable agricultural products, belonging to the technical field of whole-process tracking and tracing of the fruit-and-vegetable agricultural products. By taking GAP (Good Agriculture Practices) as a reference, and non-pollution, green and organic standards as basis and using a PDA (Personal Digital Assistant) and an intelligent mobile phone as carriers, a production operation prompt model of the fruit-and-vegetable agricultural products is constructed, the managing method of the farming information collection and safe production is provided and comprises the steps of downloading of basic information, collection of production information, uploading of production information, management of production information, decision of production process, feedback of decision information and evaluation of production process, and a handheld farming information collection system based on a portable terminal and the managing system of the safe production based on a B / S (browser-server) framework are developed. The comprehensive management combining safe production file record of agricultural products, control of production process and early-warning of production operation has great significance on scientific decision program, quality safety level improvement of the agricultural products and whole-process tracing of the agricultural products.

The invention discloses a spherical bulb production line which comprises a conveyor belt. The conveyor belt is provided with a lamp holder one-side locating device, a gluing device and a press-fit screwing device. The lamp holder one-side locating device comprises a lamp holder locating mechanism, a supporting beam, a first air cylinder, a second air cylinder, a third air cylinder, a first pneumatic finger and a second pneumatic finger. The lamp holder locating mechanism comprises a drive motor, a rotary table and a locating groove used for containing a lamp holder. The inner bottom surface of the locating groove is provided with two ejector pins used for locating the lamp holder, wherein the two ejector pins are arranged in a protruding and extending mode. The lamp holder is provided with a locating hole. The rotary table is in rolling contact with the upper edge of the outer side of the lamp holder. The first air cylinder is fixed to the supporting beam, and the second air cylinder and the third air cylinder are fixed to the output end of the first air cylinder. The first pneumatic finger and the second pneumatic finger are fixed to the output end of the second air cylinder and the output end of the third air cylinder respectively. The spherical bulb production line can be used for automatic assembly of a spherical bulb, thereby lowering labor intensity and production cost and improving production efficiency and product quality.

The invention discloses a human body motion capture and posture analysis system and a method for carrying out foreground detection and automatic extraction of joint points through the human body motion capture and posture analysis system. According to the human body motion capture and posture analysis system, a human body motion image is captured through a camera, the human body foreground and the human body joint points are extracted from the human body motion image, and then human body motions are analyzed through a tracking and recognition algorithm. Due to the fact that a human body target in a video is extracted through an algorithm combining a background difference method and a frame difference method, the defect that background noise interference easily exists in the process of foreground detection based on the background difference method is overcome; due to the fact that the method with combination of a plurality of algorithms is adopted, automatic initialization of the human body joint points is achieved, and the defects that optical marks or manual marking is needed by a traditional joint point extraction method, and an existing automatic extraction method is large in calculated amount and poor in accuracy are overcome. The human body motion capture and posture analysis system is low in complexity and high in accuracy, and the intelligence and the efficiency of the human body motion capture and posture analysis system are improved.

The embodiment of the invention discloses a speech recognition method and system to solve the positioning inconvenience of the manually positioning by mentioned users. The speech recognition method comprises performing speech recognition for the speech signal input by users to obtain a speech recognition result and a speech clip corresponding to each character of the speech recognition result, receiving the error correction information input by the users to generate a corresponding error correction character string, obtaining at least one speech clip corresponding to the error correction character string as a candidate speech clip for the respective statistics of the likelihood of the each candidate speech clip on the error correction string model, determining the character string of the speech recognition result in the first optimal decoding path corresponding to the candidate speech clip as candidate character string according to the speech clip corresponding to each character string in the speech recognition result, calculating the error correction confidence coefficient of the candidate character string corresponding to the candidate speech clip according to the likelihood of the candidate speech clip and determining the error character string according to the error correction confidence coefficient, and replacing the error character string with the error correction character string.

The invention provides a method for automatically adjusting the crystal orientation through a double-inclination sample stage of a transmission electron microscopy. The method comprises the following steps: calibrating the double-inclination sample stage; recording a single-crystal electronic diffraction pattern of a positive zone axis, and a camera constant, and recording five readings X1, Y1, Z1, A1 and B1 of the double-inclination sample stage; calibrating the diffraction pattern by utilizing the known lattice type and parameters of a to-be-detected sample; determining a reference coordinate system through the projection positions of two rotating shafts of the double-inclination sample stage to obtain double-inclination stage readings X2, Y2, Z2, A2 and B2 needed by assigned orientation; and inputting the calculated X2, Y2, Z2, A2 and B2 values by a user through a control panel of the transmission electron microscopy, thus being capable of realizing the automatic tilting and translation process. The calculation process is easily programmed and realized, the dependence degree of an operator is reduced, the testing efficiency can be greatly improved, and the sample damage caused by long-time high-energy electronic beam radiation can also be avoided.

The invention relates to the technical field of network security management. The invention discloses a firewall policy control method and device, electronic equipment and a storage medium, which are used for controlling a firewall policy in a network, improving firewall policy issuing efficiency, reducing an error rate of firewall policy configuration, preventing the network from being attacked and improving protection capability. The method comprises the steps of obtaining a to-be-configured module calling relationship which comprises a calling relationship between a first service module anda second service module; based on the network structure description data of the network, screening out a target firewall which needs to be passed during communication between a first server where thefirst service module is located and a second server where the second service module is located, wherein the network structure description data is used for describing a communication connection relationship between each firewall in the network and at least two servers; and generating a corresponding firewall policy configuration script based on the policy configuration grammar of the target firewall and the module call relationship, and issuing the firewall policy configuration script to the target firewall.

The invention discloses a method for automatically identifying and positioning coordinates of an image point of an artificial mark in a camera calibration control field, which comprises the following steps of 1, arranging a control mark and a color coded mark; 2, setting initialization parameters; 3, adopting a camera to be calibrated to carry out image shooting on the control mark and the color coded mark which are arranged in the camera calibration three-dimensional control field and transmitting a shot image to a data processor; 4, extracting and identifying the color coded mark by adopting the data processing; 5, carrying out automatic positioning on coordinates of an image point of the control mark by adopting the data processor; and 6, carrying out high-accuracy measurement on the coordinates of the image point of the control mark by adopting the data processor. The method has simple steps, is reasonably designed and is convenient to implement; automatic positioning on the control mark can be implemented; extracting efficiency of the control mark is greatly improved; and moreover, the method can achieve higher measurement accuracy and has strong practicality and high popularization and application values.

The invention discloses a side bolt drilling machine which comprises a fixing mechanism, a supporting mechanism, a sliding rack, a drilling box mechanism and a cartridge conveying box. The fixing mechanism comprises a base, a vertical plate and a connecting seat. Protrusions for fixing guide blocks are arranged on the vertical plate. The supporting mechanism and the sliding rack are in sliding connection with the opposite side faces of the vertical plate respectively through the guide blocks, and one end of the supporting mechanism and one end of the sliding rack are connected with the base through a telescopic oil cylinder. The drilling box mechanism comprises a bottom rack and two independent drilling box sliding seats. The bottom rack is fixedly connected with the base, the drilling box sliding seats can horizontally move along the bottom rack, and when the drilling box sliding seats move to the sliding rack, the drilling box sliding seats can be connected with the other guide rail face of the sliding rack and slide along the sliding rack. The cartridge conveying box is used for completing the automatic cartridge feeding procedure of the drilling machine. The invention further discloses a side bolt drilling carriage with the drilling machine. By means of automatic cartridge feeding and automatic anchor bolt mounting, mechanization and automation of anchor bolt supporting work are achieved, the construction needs of a plurality of rows of side bolts can be met, and the side bolt drilling carriage works in cooperation with heading equipment to synchronously complete side bolt supporting and transferring functions.

The invention discloses a method for fine segmentation of the eye ground optic disc based on SLIC super-pixel segmentation. The steps are as follows: super-pixel segmentation, vascular segmentation based on morphological processing and R-G double-channel color threshold segmentation are carried out on an input eye ground image, and after expansion of a connected region obtained from color threshold segmentation, a corresponding Toeplitz matrix template is selected according to the pixel coordinates of the connected region to filter an eye ground vascular image to obtain the center position ofthe optic disc; and then, a candidate area of the optic disc is extracted and the internal blood vessels are removed, threshold segmentation is carried out on the candidate area of the optic disc through a binarization method, the ROI (Region of Interest) of the optic disc ellipse is determined by using an ellipse fitting method based on least squares, super pixels with a certain overlapping areaare retained according to the SLIC super-pixel segmentation result, and thus, fine segmentation of the optic disc is completed. Through the method, automatic positioning and fine segmentation of the optic disc are realized, better contour information of the optic disc can be retained, less time is consumed, other follow-up processing of the eye ground image is facilitated, and assistant diagnosiscan be provided for ophthalmologists.

The invention belongs to the field of sensors, and discloses an automatic vibrating gyroscope trimming method. The automatic vibrating gyroscope trimming method comprises the following steps: (1), automatically measuring the intrinsic frequencies of a harmonic vibrator of a vibrating gyroscope in two working modes, and calculating ta frequency cracking value according to the intrinsic frequencies;(2), if the frequency cracking value does not meet an accuracy requirement, comparing the two intrinsic frequencies to automatically determine a trimming mode and a corresponding trimming method; (3), controlling the gyroscope to move to an expected machining position by automatically positioning the relevant physical position of the gyroscope and the physical position of a trimming mechanism ofmachining equipment; (4), automatically planning a machining technology according to a relationship between the required removed mass and machining technological parameters, automatically trimming thegyroscope according to the planned machining technology, and returning to the step (1) after completion of trimming. By the method, the degree of automation is high and the trimming accuracy and thetrimming efficiency are improved.

The present invention relates to a method for locating single-phase ground fault of a low current grounding system power distribution network, including determining a total length L[total] and a total impedance Z[total] between two lines of M and N, and injecting signals when occurring a fault, when a P point between the M and N positions occurring a single-phase ground fault, systems of the two positions inject signals at the M and N position, and measures the amplitude of a return current signal as well as a phase difference between the return current signal and the injection voltage signal, after a line selection device has selected the fault phase; calculating a loop total impedance Z[M] grounded through the P point from the M and N ends, the modulo of the Z[N], and a phase angle Phi[M] of the Z[M] and the Z[N], according to |Z| = |U| / |I|, the measured injection voltage, the amplitude of the return current signal and the phase difference, a distance from the fault point P to the M position is further calculated through the following formula. By the method of the invention, it is easy to detect when the signal amplitude is strong, the attrition in the power distribution network is low, the algorithm is high, and the accuracy is high.

The invention discloses an inserting cutting type variable diameter banana shaft removing and combing cutter self-adaptive to the diameter of a banana spike rod. The cutter comprises hard combing blades, soft combing blades, universal ball bearings and a rack, wherein one side of each soft combing blade extends to form a cutter arm, and a limiting frame is arranged on each hard combing blade; the number of the hard combing blades and the number of the soft combing blades are plural, the body of one hard combing blade and the body of one soft combing blade are stacked to be combined into a combing blade set, a plurality of the hard combing blades and a plurality of the soft combing blades are combined into a plurality of combing blade sets arranged in the rack, the cutter arm of one combing blade set stretches into the limiting frame of the adjacent combing blade set, and the multiple combing blade sets are combined to form a circumferential cutting edge capable of wrapping the banana spike rod; each combing blade set is provided with one universal ball bearing, and a deformation structure is connected between each combing blade set and the rack. The cutter has the advantages of being light and small in overall structure, convenient to move, safe and labor-saving to operate, and suitable for mechanical banana combing.

The invention discloses an active contour model-based automatic positioning and segmentation method of a spinal CT image, and relates to the field of medical image processing. The method provides themethod of automatic positioning and segmentation on the CT image for the sensitivity problem which is of segmentation methods of spinal CT images and on initial positions and contours. n groups of spinal CT images are obtained by scanning of clinical CT instruments, and the CT slices are manually segmented by experts and are used as training samples; a random forest algorithm is used for positioning vertebral centers to determine the vertebral centers; initial contours of segmentation are placed at central positions determined by the random forest algorithm, and fuzzy contour segmentation is adopted to obtain vertebrae in the CT slice images by segmentation; and a trained model combination is output to obtain a complete vertebral CT image segmentation model. According to the spinal CT segmentation model provided by the invention, a vertebral center and an initial contour position of segmentation can be automatically positioned, a vertebra can be automatically obtained by segmentation,and segmentation steps and processes of the spinal CT image can be simplified.

The invention provides an intelligent electric acupuncture apparatus. The electric acupuncture apparatus comprises an acupuncture point positioning and monitoring module, a main control module, a treatment scheme generation module, a treatment mode adjusting module, an electric pulse stimulation signal generation module, a display module, and a power module. The electric acupuncture apparatus can achieve the automatic positioning of the position of an acupuncture point, thereby enabling a user to be able to carry out electric acupuncture treatment more conveniently. Meanwhile, the electric acupuncture apparatus can intelligently adjust the treatment mode in a treatment process according to a treatment effect, thereby improving the intelligentization of the electric acupuncture apparatus.

The invention provides a device and a method for assisting users in determining cell grid position in an appointed region of an electronic form, which can flexibly determine positions of cell grids in the appointed region of the electronic form at simple operation to meet the requirement of users. The device for determining the positions of cell grids in the appointed region in the electronic form comprises a computer input equipment, a display equipment and a host computer, which are connected with each other, as well as a positioning module for receiving the user's input and determining the current positioning position, a drawing module for drawing a positioning mark in the electronic form, and an electronic form page information module, in which screen coordinate information of the form's window region and logic coordinate information of each cell grid, row and column are stored.

The invention discloses a method for automatically positioning a main transmission shaft of a finishing mill. In the method, the control speed of a main motor is calculated by using a zero position pulse of an encoder of the main motor as a positioning pulse through the difference between an actual rotation position and a target rotation position of the encoder, so that the main motor is controlled in a deceleration manner to automatically position the main shaft; therefore, the main shaft can be automatically and accurately positioned, and the improvement on roller exchange operation efficiency of the finishing mill is facilitated.

In the present invention, the equipment consists of optical fiber measuring head, X, Y and Z axis linear displacement and Z axis angular servo positioner, carrying table, lighter, camera, image collecting card, spectral detection system and computer processing system, also set contact pressure sensor, temperature sensor and pressure and temperature signal processing and collecting unit. The method includes the steps of: image pick-up, matching and positioning of body's surface texture characteristic; displacement in X-Y plane and Z axis rotation positioning based on image matching; positioning in Z axis direction based on measurement elements and body's surface texture; and image collection and monitoring the motion state of the measured parts.

Embodiments of the invention provide a file positioning method and device and an electronic device. The method comprises the following steps: obtaining a preset operation instruction of a target application identifier in an application display interface, wherein the application display interface is an interface used for displaying the application identifiers of a plurality of locally installed application programs, and the application identifiers of the application programs are extracted from detected corresponding installation packages; determining a target package name of a target installation package corresponding to the target application identifier; determining a target catalog path corresponding to the target package name based on a preset database, wherein a corresponding relation of the package name and the catalog path is recorded in the preset database, the catalog path is an access path corresponding to a catalog in a file management catalog, and the catalog in the file management catalog is a file catalog corresponding to corresponding application program; and skipping to the target catalog path to display the target file catalog corresponding to the target catalog path. By adopting the file positioning method provided by the scheme, the file positioning speed can be accelerated.