40results about How to "Intelligent positioning" patented technology

The invention discloses an intelligent ball picking, serving and cleaning device with a photovoltaic power. The intelligent ball picking, serving and cleaning device with the photovoltaic power comprises a trolley, wherein a control module, a photovoltaic tracing device, a storage cabin, a mechanical arm, a camera module and a ball serving device are mounted on the trolley; the control module is connected with the photovoltaic tracing device for controlling the strongest light intensity of the photovoltaic tracing device; the control module is connected with the mechanical arm for controlling the mechanical arm to place the picked garbage and balls in the storage cabin; the control module is connected with the camera module for controlling the camera module to automatically classify and identify the scanned balls and garbage; the control module is connected with the ball serving device for controlling the serving device to serve different balls. The intelligent ball picking, serving and cleaning device with the photovoltaic power is capable of picking the garbage and balls at playgrounds and other fields and also capable of classifying the balls and serving tennis balls, baseballs, golf balls and other balls for a sportsman in training.

The embodiment of the invention discloses a method for implanting an advertisement into a video and computer equipment, and the method comprises the steps that the computer equipment determines a target image, the target image is an image containing a first plane advertisement in M frames of images of the target video, and M is a positive integer; the computer equipment determines a target area, wherein the target area is an area where the first plane advertisement is located in the target image; the computer equipment inserts a second plane advertisement to be implanted into the target area to replace the first plane advertisement; and the computer equipment carries out style conversion on the target image in which the second plane advertisement is implanted, wherein the style of the second plane advertisement in the converted target image is consistent with the style of the image pixel points outside the area where the second plane advertisement is located in the target image. By implementing the embodiment of the invention, the computer equipment can realize advertisement positioning, advertisement implantation and style conversion of the implanted advertisement in a full-automatic manner, so that the visual experience of the implanted advertisement is improved.

The invention provides an automatic guided dual-lidar control method and system and a positioning method. The method comprises the steps that two sets of distance data of two lidars arranged on an automatic guided vehicle are acquired respectively; two lidars include a first lidar and a second lidar, and two sets of distance data include a first set of distance data and a second set of distance data; based on at least one set of distance data in two sets of distance data of two lidars, whether the first lidar is in a radar dead zone is determined; and the operation mode or signal processing mode of at least one lidar in two lidars is controlled according to the status of the blind zone in which the first lidar is located. According to the invention, in the navigation process of the automatic guided vehicle, enough information are collected by two lidars; the operation mode and / or signal processing method of two lidars is controlled to reduce the time of blindness of the AGV; the autonomous navigation accuracy and intelligence of the AGV are improved; and the work efficiency is improved.

The invention discloses a NandFlash bad block management method and belongs to the field of memories. The method comprises the following steps of: performing initial bad block scanning, looking for a substitutive block for the scanned bad block, generating corresponding record and writing the record in a bad block substitution region, creating a bitmap list after the initial bad block scanning, performing bitmap marking on the record in the bad block substitution region, judging whether the block related in the operation request is bad block according to the mark in the bitmap when receiving a block operation request, if so, looking for the substitutive block of the bad block and operating the substitutive block, if not, operating the current block, adding or amending the record in the bad block record if the bad block appears during the operation process, and adding the mark of the new bad block in the bitmap list. The NandFlash bad block management method has the beneficial effects of supporting high capacity NandFlash chips under the condition of occupying small internal memory and improving the access speed of the NandFlash chips.

The invention relates to on-line detection of a combination surface hole group of an engine cylinder. In order to meet automatic, quick and high-precision positioning requirements for a detection line of the engine cylinder, the invention adopts the technical scheme that an on-line detection vision positioning method for the combination surface hole group of the engine cylinder is implemented by a double-matrix charge coupled device (CCD) positioning camera, an image acquisition card, a calibration target, an optical reflecting mirror, a reflecting mirror adjustment device, a light emitting diode (LED) lighting system and a data processing computer and comprises the following steps of: coarsely positioning the engine cylinder; lighting positioning holes of the engine cylinder by using a high-brightness LED lighting device; acquiring the image information of two positioning pin holes of the engine cylinder by using the double-matrix CCD positioning camera and the optical reflecting mirror together; acquiring the image information of a characteristic hole of the calibration target and the positioning pin holes of the engine cylinder which is measured by using the image acquisition card and the computer; and extracting the center of each positioning pin hole by using an image processing technology. The method is mainly applicable to on-line detection of the engine cylinder.

The invention provides an electricity stealing analysis method, device and server, which relate to the field of power analysis. The electricity stealing analysis method is applicable to the server forcarrying out electricity stealing analysis on a user accessed to a special transformer. The method comprises steps: According to a current value, a voltage difference, a three-phase current unbalancerate, a power change parameter, a meter acquisition and AC acquisition comparison value, an electric quantity ratio discrete coefficient and a line loss rate, an electricity stealing suspicion coefficient is obtained by weighting calculation; and when the electricity stealing suspicion coefficient is higher than a preset parameter threshold, the user is judged to have electricity stealing suspicion. According to the electricity stealing analysis method, the device and the server provided in the invention, according to the monitored electricity consumption operation data of the user, the electricity stealing suspicion coefficient of each user is calculated automatically, and when the electricity stealing suspicion coefficient is higher than the preset parameter threshold, the user is judged to have electricity stealing suspicion, and an inspector can perform on-site investigation to detect whether a suspicious user has an electricity stealing behavior.

The invention discloses a blockchain distributed real-time fire-fighting monitoring alarm system based on a 5G and Internet of Things mode. The invention, which relates to the technical field of fire-fighting monitoring., Bby constructing the a monitoring layer, the a data communication layer, the a data processing layer and the a data application layer, data acquisition, data calculation, data processing and data transmission of various distributed fire-fighting equipment are realized; remote, online and real-time acquisition and application of fire-fighting data can be realized, so that a user can realize application, management, traceability and monitoring of fire-fighting equipment data without going to the site personally, and online monitoring of fire-fighting data information of each plant area is realized. Monitoring management of the distributed monitoring equipment is realized by adopting a 5G network technology, an Internet of Things technology and a block chain technology;,organic fusion of various data information is realized by adopting a distributed fusion technology, and the dispersed data information is fused. By applying the blockchain technology, the data monitoring strength is improved by utilizing the properties of decentralization, data tamper resistance and traceability of the blockchain technology.

The present invention discloses a smart home wireless power supply system and method. The system comprises: a plurality of wireless power supply devices, each wireless power supply device is at leastconnected with adjacent wireless power supply devices overlapped with a power supply coverage range. Each wireless power supply device comprises: one radio-frequency transmission module configured togenerate and send microwave signals, wherein each radio-frequency transmission module comprises one radio-frequency signal generation device and one radio-frequency antenna module; one communication module configured to receive charging request signals from each wireless charging receiving terminal and position signals of each wireless charging receiving terminal; one control unit configured to determine whether the wireless charging receiving terminals are located in the power supply coverage range overlapped with the adjacent wireless power supply devices or not based on the position signalsand the distribution information of the wireless power supply devices in a wireless power supply node network and determine whether the wireless power supply devices charge the wireless charging receiving terminals or not when the wireless charging receiving terminals are located in the overlapped power supply coverage range. The smart home wireless power supply system and method are wide in coverage range, achieve intelligent charging and positioning track and improve the efficiency of wireless charging.

The present invention discloses a fusion positioning method based on a radio over fiber technology, and a fusion positioning system based on the radio over fiber technology. The fusion positioning system based on the radio over fiber technology is composed of a fusion positioning device 01 based on a radio over fiber communication technology, a plurality of client devices 02 supporting a fusion positioning identification function, and a plurality of relay devices 03 supporting the fusion positioning identification function. The fusion positioning device 01 receives a fusion positioning service request, measures, or obtains the fusion positioning service information of the fusion positioning service objects via the relay devices 03, wherein the types of the objects comprise a single fusion positioning service object 04, a fusion positioning service group 05, and fusion positioning service users 06, decides a positioning service method, and provides the fusion positioning service by the method. According to the present invention, the fusion processing of various positioning information can be realized while not being limited by software; an optimal positioning method can be analyzed and decided intelligently; the complexity of a device is simplified, so that the structure of the device is miniature; real-time update services are provided; the intelligent positioning service by taking the people, the objects, or the people and objects as the centers is realized better.

The invention discloses a road test judgment method based on a technology combining Beidou positioning with digital modeling. The method includes the processes of establishment of a test site model and a test vehicle model, Beidou positioning, conversion of vehicle conditions in the test site model, and judgment of test grades according to the geometrical relationship between the test vehicle model and the test site model. By the adoption of the road test judgment method based on the technology combining Beidou positioning with digital modeling, positions and relative directions of vehicles can be intelligently located, the vehicle position conditions can be accurately stimulated with the combination of the models, and accuracy of road test judgment is improved. In addition, a Beidou positioning system can be more easily accepted by domestic special users, such as troops.

The invention discloses a method for storing and locating selected content on a web page. According to the method, a root node of a main body of the web page is used as a reference node, the offset of the initial position and the end position of the content selected by a user is worked out, and the web page url, the reference node, the selected content, the offset of the initial position of the selected content and the offset of the end position of the selected content are used as locating information to be stored in a server; when the selected content needs to reappear, the locating information is obtained from the server, and the selected content is located in a new web page according to the locating information; when locating fails, locating can be conducted again according to the total number of times of appearance of the selected content in the web page and the sequence of the appearance times. The method for storing and locating selected content on the web page is high in adaptability and the method is accurate and stable no matter whether the method is applied to a computer or a mobile terminal.

A switching method and a portable electronic device (100) for solving the problem in the prior art that a pedestrian and a vehicle cannot be accurately recognized, thereby effectively improving the accuracy of recognition. The method is applied to a portable electronic device (100) comprising a barometer and a sound sensor, and comprises: acquiring barometric pressure data collected by the barometer and sound intensity data collected by the sound sensor within a pre-set duration (302), wherein the barometric pressure data comprises n groups of collection moments and barometric pressure values, the sound intensity data comprises n groups of collection moments and sound intensity values, the barometer and the sound sensor synchronously perform collection, and n is an integer greater than 1; and when it is determined that the barometric pressure data and the sound intensity data satisfy a pre-set condition, switching a first location algorithm to a second location algorithm or switching a first location technique to a second location technique (304).

The invention relates to a multi-axis and multi-station independent automatic screw locking machine which comprises a worktable, an assembling line arranged at the front end of the top of the worktable, first machining mechanisms arranged behind the assembling line, and second machining mechanisms arranged on the left sides of the first machining mechanisms. A first guide mechanism is arranged on the part, at the front end of each first machining mechanism, of the assembling line, a first positioning mechanism is arranged on the left side of each first guide mechanism, the number of the positioning mechanisms is three or more, and a limiting mechanism is arranged between every two first positioning mechanisms. According to the multi-axis and multi-station independent automatic screw locking machine, three-dimensional spatial machining of four or more faces at any angle can be carried out on multiple workpieces by each machining device, products produced on each assembling line working for eight hours each day can reach 3200 or more, and four or more workers can be saved for each assembling line; flexibly design is also adopted for the multi-axis and multi-station independent automatic screw locking machine which is suitable for carrying out automatic screw tapping on multiple varieties, the debugging time for changing varieties is equal to or shorter than one minute, and the demand for industrial automation development can be met.

The invention discloses an electric transplanter which comprises a walking assembly, and a planting assembly is fixedly mounted on the walking assembly; and a walking mechanism is an electric trolleybody. A lifting base plate is controlled by a first motor to slide downwards along a clamping block under the action of a vertical adjusting block, so that a seedling planting component is driven to move downwards as a whole, at the moment, punching blocks fixed to the bottoms of the row of transverse plates where the lowest position is located move downwards by a specified distance, whether the punching blocks encounter barriers or not is sensed through a sensor, and when the punching blocks encounter the barriers, it is judged that the punching blocks contact the ground; after contact with the ground, the first motor automatically controls the lifting base plate to descend by a specified distance, and at the moment, planting pits are dug in the land by the punching blocks; after the lifting base plate descends to a specified distance, the lifting base plate is driven by the first motor to reset and returns to the initial position; and a second motor is driven to drive a sliding baseto move to the maximum stroke on a first base in the advancing direction of an electric trolley, and at the moment, a seedling discharging pipe is located over the planting pit.

The invention discloses an intelligent garbage classification system and method. The system comprises a plurality of garbage classification barrels (110), and comprises a garbage classification throwing unit (10), intelligent can locks (20), a network interaction unit (30), a server (40), and an application terminal (50), wherein the garbage classification throwing unit (10) is connected with theintelligent can locks (20) and the application terminal (50), and the network interaction unit (30) is mutually connected with the intelligent can locks (20) and the server (40). Compared with the prior art, intelligently selected unlocking can be implemented, a garbage can corresponding to the type of garbage needing to be thrown is unlocked, and the garbage can be thrown correctly; an administrator unlocks in a unified manner and enables the garbage can to recover the state of a common garbage can, garbage collection and equipment maintenance and management are facilitated, intelligent positioning is implemented, the throwing locations, types and number of the garbage classification cans are accurately known, and position changes of the garbage classification cans are monitored in real time.

The invention belongs to the technical field of optical cables, and relates to a high-flame-retardant optical cable for subway tunnels. The high-flame-retardant optical cable for the subway tunnels includes a cable core, and an inner flame-retardant layer, a composite steel wire armor layer and a composite flame-retardant sheath layer which cover the cable core from the inside to the outside. Theoptical fiber, the flame-retardant water-blocking fiber paste, a flame-retardant loose tube, a central reinforcing member and the flame-retardant water-blocking cable paste form the cable core havingflame-retardant and water-blocking properties. In the invention, the multi-layer flame-retardant structure design of the cable core, the inner flame-retardant layer and the composite flame-retardant sheath layer makes the cable burn in the fire without generating toxic gases and smoke, normal communication transmission can be ensured in the event of fire, real-time monitoring of temperature is realized, fire hazards are reduced, and life and property and safety can be ensured; and the combination of the composite steel wire armor layer and the composite flame-retardant sheath layer forms a multi-channel defense against rat and ant bites, enhances the shielding performance and the tensile performance of the optical cable, and prevents the armor layer from " lantern " during the armoring process. The invention is suitable for data transmission in the fields of modern rail transit and the like.

The invention discloses a sharing collection message display method and a system based on group chat. The method comprises the following steps: when receiving an instruction from a user to open a client with the function of sharing collection based on group chat, the client is started; when the user opens the function of sharing collection based on group chat, the client is started; when the useropens the function of sharing collection based on group chat. According to the user's group chat session instruction, opening a group chat session associated with the user; displaying information about favorites under a specified category based on the category selected by the user on the favorites page of the group chat session. Through the method of the invention, after the sharing collection based on the group chat is completed, the message content can be intelligently and accurately located based on the designated classification selected in the collection page of the user, thereby improvingthe consulting efficiency of the message content and improving the user's use experience.

A novel intelligent positioning system of the invention includes a fixing system, a solar cell adsorption mechanism which is arranged corresponding to the fixing system on a system installation platform, and a horizontal translation mechanism and a vertical translation mechanism which are correspondingly arranged on an installation substrate and matched with the solar cell adsorption mechanism inuse. The fixing system includes a positioning photographing camera, and a background control module which is connected with the positioning photographing camera and matched with the horizontal translation mechanism and the vertical translation mechanism in use. A solar cell can be positioned intelligently. The positioning efficiency is high. The quality is stable. The maintenance is convenient. The operation is simple.

The invention discloses a novel intelligent plastic manufacturing and production device. The novel intelligent plastic manufacturing and production device comprises a carrying plate. A bottom plate isarranged in the middle of the upper surface of the carrying plate, a round table is fixedly arranged on the top of the bottom plate, a supporting rod is fixedly arranged in the middle of the lower surface of the bottom plate, a gear b is fixedly arranged in the middle of the supporting rod, a rotary rod is arranged on the left side of the gear b, the rotary rod penetrates through the carrying plate, and the rotary rod and the supporting rod are rotationally connected with the lower surface and the upper surface of the carrying plate through two sets of bearings correspondingly. Gears a and the gear b are mounted, a pedal is pressed with a foot, a sliding block of the pedal is driven to move in a guide rail left and right, the sliding block drives a rack to move, the rack drives the two sets of gears a of the rotary rod to rotate, the gears a drive the gear b of the supporting rod to rotate, a plastic drum workpiece on the round table on the top of the bottom plate rotates, the mannerthat currently, the plastic drum is rotated with one hand and paint is brushed or sprayed with the other hand is replaced, double-hand simultaneous painting work is achieved, the painting working efficiency is improved, and the novel intelligent plastic manufacturing and production device is suitable for being widely used and popularized.

The invention discloses a deep-drilling downhole pushing positioning centering system and method. The deep-drilling downhole pushing positioning centering system comprises an upper pushing positioning centering device and a lower pushing positioning centering device which are arranged at the upper end and the lower end of downhole detection equipment correspondingly along the central axis of the downhole detection equipment in the vertical direction, and composition units of the upper pushing positioning centering device and the lower pushing positioning centering device are reversely configured; and within the downhole 3000 meters, reverse thrust is provided through driving units arranged on the upper pushing positioning centering device and the lower pushing positioning centering device through remote control of a control system, thus pushing positioning centering structures arranged on the upper pushing positioning centering device and the lower pushing positioning centering device are unfolded in the single-synchronous radial direction to form supporting points, the downhole detection equipment is fixed and centered in a borehole, and automatic pushing, accurate positioning and intelligent centering operation are achieved. In the sampling stage, the upper pushing positioning centering device and the lower pushing positioning centering device reversely output torque and offset each other, and the situation that the posture of the downhole detection equipment is stable in the sampling process is ensured; and the structure is simple, the deep-drilling downhole pushing positioning centering system is made of a metal material, the intelligent degree is high, the deep-drilling downhole pushing positioning centering system can be reused, the production cost is reduced, and the rock and soil mechanical parameter measuring efficiency is improved.

The invention relates to an intelligent single-phase grounding fault detection device for a 10 kV line, which comprises a shell and a detection device arranged in the shell, wherein the detection device comprises a data interaction unit, a power supply module, a comprehensive data processing module and a control system which are electrically connected; the data interaction unit is arranged on theshell and comprises an adjusting device, an operation indicating lamp, a power supply indicating lamp and a plug interface; the comprehensive data processing module comprises a data preprocessing unit, an analog-to-digital conversion unit and a level conversion unit; the control system comprises a current characteristic analysis unit and a fault judgment unit; and through the coordination of eachmodule unit of the control system, the current change characteristics are periodically analyzed, the judgment and analysis results are directly displayed on a power distribution terminal, and meanwhile, the signals of the judgment results are transmitted to a master station server and displayed in a background monitoring system. The intelligent single-phase earth fault detection device for a 10 kVline has the characteristics of rapidly positioning the fault section, improving the emergency repair speed of the single-phase grounding fault, improving the power supply reliability and the like.

The invention relates to the technical field of medical equipment, and discloses a heart color Doppler ultrasound probe capable of avoiding excessive pressing and achieving intelligent positioning. The heart color Doppler ultrasound probe comprises a rack, wherein a probe roller is rotatably connected to the interior of the rack, a pressing plate is slidably connected to the upper end close to theprobe roller, of the rack, and a sliding rod is fixedly connected to the upper end of the pressing plate; and a reset spring is fixedly connected to the upper end of the sliding rod, movable blocks are slidably connected to the interior of the sliding rod, metal strips are fixedly connected to the side surface close to the movable blocks, of the rack, an air duct is formed in the rack, and air pumps are fixedly connected to the interior of the air duct. The sliding rod is pressed by the probe roller to move upwards, so that the movable blocks and the metal strips are connected with each other, the movable blocks are connected with an internal circuit, the metal strips are connected with a buzzer, the buzzer can work, and therefore, the effects of giving a prompt when a doctor presses excessively and preventing the patient from being injured due to misoperation of a doctor when the doctor checks a focus are achieved.

The invention provides a face turning detection method based on deep learning, and the method comprises the following steps: 1, training a deep learning target detection model, and detecting a bounding box; 2, creating a background image; 3, calculating and drawing a central point of the bounding box; 4, carrying out linear detection on the background image; 5, filtering and extracting straight lines, and judging the range that the straight lines cannot intersect and the slope; 6, calculating the center points of the remaining bounding boxes; step 7, fitting the center point into a straight line; 8, dividing the bounding box to a straight line; step 9, dividing the bounding box into rows, and dividing the straight lines into columns; step 10, acquiring the posture of the head of the student; 11, calculating an included angle between a yaw angle of the student head and a straight line corresponding to the bounding box, and judging whether the student turns the face or not; and 12, drawing the straight lines, the bounding boxes, the rows, the columns and the included angles on the image. According to the invention, row and column information of students and face turning can be automatically positioned, and classroom learning listening conditions can be digitally embodied.

The invention relates to on-line detection of a combination surface hole group of an engine cylinder. In order to meet automatic, quick and high-precision positioning requirements for a detection line of the engine cylinder, the invention adopts the technical scheme that an on-line detection vision positioning method for the combination surface hole group of the engine cylinder is implemented by a double-matrix charge coupled device (CCD) positioning camera, an image acquisition card, a calibration target, an optical reflecting mirror, a reflecting mirror adjustment device, a light emitting diode (LED) lighting system and a data processing computer and comprises the following steps of: coarsely positioning the engine cylinder; lighting positioning holes of the engine cylinder by using a high-brightness LED lighting device; acquiring the image information of two positioning pin holes of the engine cylinder by using the double-matrix CCD positioning camera and the optical reflecting mirror together; acquiring the image information of a characteristic hole of the calibration target and the positioning pin holes of the engine cylinder which is measured by using the image acquisition card and the computer; and extracting the center of each positioning pin hole by using an image processing technology. The method is mainly applicable to on-line detection of the engine cylinder.

The invention discloses a detection method for intelligently locating a lettering region, belonging to the field of electrics. The detection method specifically comprises the steps of: obtaining and storing the images of the lettering region of a device to be detected; processing the images according to image processing parameters; identifying closed image regions meeting the estimated parameters of the lettering region in the processed images; judging whether letters are obtained by identifying, if so, judging whether the letters obtained by identifying are same as serial numbers stored in the device to be detected, if so, prompting that the internal number and the external number of the device to be detected are the same, otherwise, prompting that the internal number and the external number of the device to be detected are different; and if the letters are not obtained by identifying, judging whether the unidentified closed image regions meeting the estimated parameters of the lettering region exist, if so, continuing to identify, otherwise, detecting the marks of the image processing parameters, adjusting the image processing parameters to reprocess and re-identify the images when the marks are not set, and prompting that the internal number and the external number of the device to be detected are different when the marks are set. The detection method has the beneficial effect that the detection efficiency and the adaptability to light environments are improved.

The invention discloses a building maintenance work order analysis method, device, storage medium and client. The method includes: acquiring a building maintenance work order set and a BIM model of a building involved in the building maintenance work order set; determining the The structural information of each building maintenance work order in the building maintenance work order set, and the original corpus of the building maintenance work order set; and determine the keyword library according to the BIM model; according to the structured information, the original The corpus and the keyword library perform semantic word segmentation processing and analysis processing to realize the automatic classification of the building maintenance work order collection. The solution of the present invention can solve the problem of poor accuracy of statistical analysis using structured information such as the location, time, and repairer of the maintenance work order, and achieve the effect of improving accuracy.

The present invention provides a production cycle analysis method and a production cycle analysis system capable of quickly locating a problem point causing an extension of a production cycle. The production cycle analysis system includes: a work performance information collection unit that collects work performance information for all processes related to each product, the work performance information including a work start time and a work end time of the processes; a process work time calculation unit that calculates a process work time, which is the time difference between the work start time and the work end time of the process, on the basis of the work performance information for each process for each product; a process standard operation time acquisition unit that acquires a corresponding process standard operation time for each process of the product; and a process delay time calculation unit that calculates, for each process of each product, a delay time of the process operation time of the process with respect to the corresponding process standard operation time as a process delay time of the process.

A novel intelligent positioning system of the invention includes a fixing system, a solar cell adsorption mechanism which is arranged corresponding to the fixing system on a system installation platform, and a horizontal translation mechanism and a vertical translation mechanism which are correspondingly arranged on an installation substrate and matched with the solar cell adsorption mechanism inuse. The fixing system includes a positioning photographing camera, and a background control module which is connected with the positioning photographing camera and matched with the horizontal translation mechanism and the vertical translation mechanism in use. A solar cell can be positioned intelligently. The positioning efficiency is high. The quality is stable. The maintenance is convenient. The operation is simple.

This paper discloses a switching method and a portable electronic device, which are used to solve the inability to accurately identify pedestrians and vehicles in the prior art, and effectively improve the accuracy of identification. The method is applied to a portable electronic device including a barometer and a sound sensor, and includes: acquiring air pressure data collected by the barometer and sound intensity data collected by the sound sensor within a preset time period, wherein the air pressure data includes n groups of collection times and air pressure value, the sound intensity data includes n groups of collection times and sound intensity values, the barometer and the sound sensor are collected synchronously, n is an integer greater than 1; it is determined that the air pressure data and the sound intensity data meet the preset conditions, Switch the first positioning algorithm to the second positioning algorithm or switch the first positioning technology to the second positioning technology.