CN110068851B - Method and system for safely acquiring position of mobile terminal - Google Patents
Method and system for safely acquiring position of mobile terminal Download PDFInfo
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- CN110068851B CN110068851B CN201910238154.7A CN201910238154A CN110068851B CN 110068851 B CN110068851 B CN 110068851B CN 201910238154 A CN201910238154 A CN 201910238154A CN 110068851 B CN110068851 B CN 110068851B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/86—Combinations of sonar systems with lidar systems; Combinations of sonar systems with systems not using wave reflection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
Abstract
The invention discloses a method and a system for safely acquiring the position of a mobile terminal, which comprises the following steps: the method comprises the following steps: acquiring the position of the mobile terminal through a GPS positioning system and setting the position of the mobile terminal as P in the latest planar map; step two: marking the position of the mobile terminal as P0, sending out ultrasonic waves to six different directions in a P0-bit circle by an ultrasonic wave generator arranged in the mobile terminal, feeding back the ultrasonic waves after the ultrasonic waves touch an object, and recording the propagation time of the ultrasonic waves in the air; according to the invention, through the arrangement of the positioning module and the data analysis module, the surrounding environment of the mobile terminal is analyzed by using ultrasonic waves, and the distance between the mobile terminal and an object in each direction is judged, so that the specific position of the mobile terminal in the environment is judged, the mobile terminal is positioned more accurately, the phenomenon of inaccurate positioning is prevented, the time is saved, and people can grasp the position of the mobile terminal conveniently.
Description
Technical Field
The invention relates to the technical field of mobile terminal position acquisition, in particular to a method and a system for safely acquiring the position of a mobile terminal.
Background
The mobile terminal or called mobile communication terminal refers to a computer device which can be used in mobile, and broadly includes a mobile phone, a notebook, a tablet computer, a POS machine, and even a vehicle-mounted computer. But most often refer to cell phones or smart phones and tablets with multiple application functions. With the development of networks and technologies towards increasingly broader bands, the mobile communications industry will move towards a true mobile information age. On the other hand, with the rapid development of integrated circuit technology, the processing power of the mobile terminal has already possessed strong processing power, and the mobile terminal is changing from a simple conversation tool to an integrated information processing platform. This also adds more development space to mobile terminals.
In recent years, with the rapid development of mobile communication, mobile terminals are widely popularized, basically, each person has one mobile terminal, leakage of some information during information transmission can occur to the mobile terminal in the early period, and with the improvement of science and technology, information can be encrypted during information transmission, so that the potential safety hazard of information is solved, but the positioning of the position information of the mobile terminal is not solved, the positioning of the mobile terminal of people is often erratic, the jumping degree is extremely high, and the people can not touch the south, east and north and west in some unfamiliar roads, so that a method and a system for safely acquiring the position of the mobile terminal are provided.
Disclosure of Invention
The invention aims to provide a method and a system for safely acquiring the position of a mobile terminal.
The invention aims to solve the technical problems that the existing positioning system does not solve the positioning of the position information of the mobile terminal, sometimes people often have the problems that the self mobile terminal is unstable in positioning, the jumping degree is extremely high, and people can not touch the south, the west and the north when on some strange roads;
the purpose of the invention can be realized by the following technical scheme: a method for safely acquiring the position of a mobile terminal comprises the following steps:
the method comprises the following steps: acquiring the position of the mobile terminal through a GPS positioning system and setting the position of the mobile terminal in a latest plane map as P;
step two: marking the position of the mobile terminal as P0, sending out ultrasonic waves to six different directions in a P0-bit circle by an ultrasonic wave generator arranged in the mobile terminal, feeding back the ultrasonic waves after the ultrasonic waves touch an object, and recording the propagation time of the ultrasonic waves in the air;
step three: calculating the distances from the objects in six directions to the mobile terminal according to the propagation time of the ultrasonic waves in the air and the propagation speed of the ultrasonic waves in the air;
step four: setting extension lines of corresponding phase positions according to the distances between objects in six directions of the mobile terminal and the mobile terminal, marking a point P in the plane map in the step one at a corresponding position in a street view map, setting the corresponding extension lines according to the ultrasonic wave transmitting direction of the point P0 by taking the point P as an original point, checking whether one end of the extension line, far away from the point P, is just contacted with the objects, if the end is just contacted, determining that the positioning is accurate, and if one extension line is not just contacted with the objects, determining that the positioning is inaccurate;
step five: and when the positioning is determined to be inaccurate, replacing the point P with the point P0 and sending the point P to the intelligent device.
A system for safely acquiring the position of a mobile terminal comprises a data receiving module, an identification unit, a database, a sound wave positioning module, a controller, a data analysis module, a replacement unit and intelligent equipment;
the data receiving module is used for receiving GPS positioning information of the mobile terminal, the data receiving module is used for receiving the GPS positioning information of the mobile terminal and transmitting the GPS positioning information to the identification unit, the latest plane map information and street view map information are stored in the database, the database transmits the plane map information to the identification unit, the identification unit receives the plane map information transmitted by the database and the GPS positioning information of the mobile terminal transmitted by the data receiving module and identifies the GPS positioning information of the mobile terminal, and the specific identification process is as follows:
the method comprises the following steps: the identification unit automatically identifies the plane map information transmitted by the database and the GPS positioning information of the mobile terminal transmitted by the data receiving module;
step two: marking the positioning point as a point P according to the positioning point acquired by the GPS positioning information of the mobile terminal end transmitted by the data receiving module;
step three: marking a positioning point acquired by GPS positioning information of a mobile terminal at a corresponding position in a planar map transmitted by a database;
the identification unit transmits the plane map information marked with the positioning points to the controller, the controller receives the calibration information transmitted by the identification unit and sends a calling command to the database, and the database receives the calling command transmitted by the controller, calls street view map information related to the point P and transmits the street view map information to the data analysis module;
the positioning module is a module with an ultrasonic detection function, the positioning module is used for detecting the position of the mobile terminal, the positioning module is installed on the mobile terminal, the position of the mobile terminal is set to be a point P0, the positioning module generates ultrasonic waves in six different directions by taking a point P0 as a circle center, the ultrasonic waves generate return waves after encountering an object, the positioning module receives the return waves and records data information of each ultrasonic wave, the data information comprises the propagation speed of the ultrasonic waves in the air, round-trip time information of the ultrasonic waves and the transmission direction information of the ultrasonic waves, the positioning module transmits the data information to the controller, the controller receives the data information transmitted by the positioning module and transmits the data information to the data analysis module, and the data analysis module receives the data information transmitted by the controller, the positioning information output by the identification unit and street view map information transmitted by the database and integrates the data information transmitted by the controller The position of the mobile terminal is judged by the positioning information of the book obtained by the identification unit and the street view map information transmitted by the database, and whether the positioning point is accurate or not is judged;
the data analysis module transmits the judgment result to a replacement unit, the replacement unit is used for replacing an inaccurate positioning point P, and when the data analysis module judges that the positioning of the point P is inaccurate, the replacement unit replaces the GPS positioning point P with an ultrasonic positioning point P0 of the mobile terminal;
the replacement unit transmits the replaced anchor point P0 to the smart device.
Preferably, the data analysis module receives the data information transmitted by the controller, the positioning information of the book output by the identification unit, and the street view map information transmitted by the database, and integrates the data information transmitted by the controller, the positioning information of the book output by the identification unit, and the street view map information transmitted by the database to judge the position of the mobile terminal, and the specific judgment process is as follows:
the method comprises the following steps: the data analysis module automatically extracts ultrasonic information transmitted to different directions by the positioning module, and marks the ultrasonic information in six directions as Ci, i is 1.. 6;
step two: the data analysis module automatically extracts ultrasonic round-trip time information in the data information, the ultrasonic round-trip time information is marked as Ti, i is 1.. 6, and Ti and Ci correspond to each other one by one;
step three: the data analysis module automatically extracts the propagation speed of the ultrasonic waves in the data information in the air, and marks the propagation speed of the ultrasonic waves in the air as Vi, i-1.. 6;
step four: calculating the distance L between the object in the direction and the positioning point according to the propagation speed Vi of the ultrasonic wave in the air and the round-trip time information Ti of the ultrasonic wave, wherein the distance L is Ti Vi/2;
step five: marking a point P marked on the plane map by the identification module into a street view map transmitted by the database;
step six: set up the extension line that calculates the length around the P point according to the direction information of ultrasonic wave transmission, look over whether the one end that every extension line kept away from the P point touches peripheral article and judge the position of P point:
s1: when the ends of the six extension lines far away from the point P are all contacted with an object, the positioning point P is judged to be positioned accurately;
s2: and when one end of the six extension lines far away from the point P is not contacted with the object, the positioning point P is judged to be inaccurate in positioning.
Preferably, the data receiving unit is communicatively coupled to the identification unit, the identification unit is communicatively coupled to the controller, the positioning module is communicatively coupled to the controller, the controller is communicatively coupled to the database, the data analysis module is communicatively coupled to the controller, the database is communicatively coupled to the data analysis module, the data analysis module is communicatively coupled to the replacement unit, the replacement unit is communicatively coupled to the controller, the smart device is communicatively coupled to the replacement unit, and the identification unit is communicatively coupled to the database.
The invention has the beneficial effects that:
(1) the data receiving module receives GPS positioning information of the mobile terminal and transmits the GPS positioning information to the identification unit, the latest plane map information and street view map information are stored in the database, the database transmits the plane map information to the identification unit, the identification unit receives the plane map information transmitted by the database and the GPS positioning information of the mobile terminal transmitted by the data receiving module and identifies the GPS positioning information of the mobile terminal, and the position of the mobile terminal is preliminarily judged through the setting of the GPS positioning and identification unit, so that the following detailed judgment on the position of the mobile terminal is facilitated, the time is saved, and the working efficiency is improved;
(2) the identification unit transmits the plane map information marked with the positioning points to the controller, the controller receives the calibration information transmitted by the identification unit and sends a calling command to the database, the database receives the calling command transmitted by the controller and calls street view map information related to the point P and transmits the street view map information to the data analysis module, the positioning module is a module with an ultrasonic detection function, the positioning module is used for detecting the position of the mobile terminal, the positioning module is installed on the mobile terminal and sets the position of the mobile terminal to be the point P0, the positioning module generates ultrasonic waves in six different directions by taking the point P0 as a circle center, the ultrasonic waves generate a return wave after contacting an object, the positioning module receives the return wave and records data information of each ultrasonic wave, and the data information comprises the propagation speed of the ultrasonic waves in the air, the round-trip time information of the ultrasonic waves and the transmitting direction information of the ultrasonic waves, the positioning module transmits data information to the controller, the controller receives the data information transmitted by the positioning module and transmits the data information to the data analysis module, the data analysis module receives the data information transmitted by the controller, the positioning information of the book output by the identification unit and the street view map information transmitted by the database and integrates the data information transmitted by the controller, the positioning information of the book output by the identification unit and the street view map information transmitted by the database to judge the position of the mobile terminal, through the arrangement of the positioning module and the data analysis module, the surrounding environment of the mobile terminal is analyzed by using ultrasonic waves, the distance between the mobile terminal and an object in each direction is judged, therefore, the specific position of the mobile terminal in the environment is judged, the mobile terminal is more accurately positioned, the phenomenon of inaccurate positioning is prevented, the time is saved, and people can conveniently master the position of the mobile terminal;
(3) the data analysis module transmits the judgment result to the replacement unit, the replacement unit is used for replacing an inaccurate positioning point P, when the data analysis module judges that the positioning of the P is inaccurate, the replacement unit replaces the GPS positioning point P with the ultrasonic positioning point P0 of the mobile terminal, the inaccurate positioning is replaced and corrected through the setting of the replacement unit and then is transmitted to the intelligent equipment, the positioning is more accurate, and the working efficiency is improved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a system block diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention is a method for securely obtaining a location of a mobile terminal, including the following steps:
the method comprises the following steps: acquiring the position of the mobile terminal through a GPS positioning system and setting the position of the mobile terminal in a latest plane map as P;
step two: marking the position of the mobile terminal as P0, sending out ultrasonic waves to six different directions in a P0-bit circle by an ultrasonic wave generator arranged in the mobile terminal, feeding back the ultrasonic waves after the ultrasonic waves touch an object, and recording the propagation time of the ultrasonic waves in the air;
step three: calculating the distances from the objects in six directions to the mobile terminal according to the propagation time of the ultrasonic waves in the air and the propagation speed of the ultrasonic waves in the air;
step four: setting extension lines of corresponding phase positions according to the distances between objects in six directions of the mobile terminal and the mobile terminal, marking a point P in the plane map in the step one at a corresponding position in a street view map, setting the corresponding extension lines according to the ultrasonic wave transmitting direction of the point P0 by taking the point P as an original point, checking whether one end of the extension line, far away from the point P, is just contacted with the objects, if the end is just contacted, determining that the positioning is accurate, and if one extension line is not just contacted with the objects, determining that the positioning is inaccurate;
step five: and when the positioning is determined to be inaccurate, replacing the point P with the point P0 and sending the point P to the intelligent device.
A system for safely acquiring the position of a mobile terminal comprises a data receiving module, an identification unit, a database, a sound wave positioning module, a controller, a data analysis module, a replacement unit and intelligent equipment;
the data receiving module is used for receiving GPS positioning information of the mobile terminal, the data receiving module is used for receiving the GPS positioning information of the mobile terminal and transmitting the GPS positioning information to the identification unit, the latest plane map information and street view map information are stored in the database, the database transmits the plane map information to the identification unit, the identification unit receives the plane map information transmitted by the database and the GPS positioning information of the mobile terminal transmitted by the data receiving module and identifies the GPS positioning information of the mobile terminal, and the specific identification process is as follows:
the method comprises the following steps: the identification unit automatically identifies the plane map information transmitted by the database and the GPS positioning information of the mobile terminal transmitted by the data receiving module;
step two: marking the positioning point as a point P according to the positioning point acquired by the GPS positioning information of the mobile terminal end transmitted by the data receiving module;
step three: marking a positioning point acquired by GPS positioning information of a mobile terminal at a corresponding position in a planar map transmitted by a database;
the identification unit transmits the plane map information marked with the positioning points to the controller, the controller receives the calibration information transmitted by the identification unit and sends a calling command to the database, and the database receives the calling command transmitted by the controller and calls street view map information related to the P point and transmits the street view map information to the data analysis module;
the positioning module is a module with an ultrasonic detection function, the positioning module is used for detecting the position of the mobile terminal, the positioning module is installed on the mobile terminal, the position of the mobile terminal is set to be a point P0, the positioning module generates ultrasonic waves in six different directions by taking a point P0 as a circle center, the ultrasonic waves generate return waves after encountering an object, the positioning module receives the return waves and records data information of each ultrasonic wave, the data information comprises the propagation speed of the ultrasonic waves in the air, round-trip time information of the ultrasonic waves and the transmission direction information of the ultrasonic waves, the positioning module transmits the data information to the controller, the controller receives the data information transmitted by the positioning module and transmits the data information to the data analysis module, and the data analysis module receives the data information transmitted by the controller, the positioning information output by the identification unit and street view map information transmitted by the database and integrates the data information transmitted by the controller The position of the mobile terminal is judged by the positioning information of the book output by the identification unit and street view map information transmitted by the database, and whether the positioning point is accurate or not is judged;
the data analysis module transmits the judgment result to a replacement unit, the replacement unit is used for replacing an inaccurate positioning point P, and when the data analysis module judges that the positioning of the point P is inaccurate, the replacement unit replaces the GPS positioning point P with an ultrasonic positioning point P0 of the mobile terminal;
the replacement unit transmits the replaced anchor point P0 to the smart device.
The data analysis module receives the data information transmitted by the controller, the positioning information of the book output from the identification unit and the street view map information transmitted by the database, and integrates the data information transmitted by the controller, the positioning information of the book output from the identification unit and the street view map information transmitted by the database to judge the position of the mobile terminal, and the specific judging process is as follows:
the method comprises the following steps: the data analysis module automatically extracts ultrasonic information transmitted to different directions by the positioning module, and marks the ultrasonic information in six directions as Ci, i is 1.. 6;
step two: the data analysis module automatically extracts ultrasonic round-trip time information in the data information, the ultrasonic round-trip time information is marked as Ti, i is 1.. 6, and Ti and Ci correspond to each other one by one;
step three: the data analysis module automatically extracts the propagation velocity of the ultrasonic waves in the data information in the air, and marks the propagation velocity of the ultrasonic waves in the air as Vi, i is 1.. 6;
step four: calculating the distance L between the object in the direction and the positioning point according to the propagation speed Vi of the ultrasonic wave in the air and the round-trip time information Ti of the ultrasonic wave, wherein the distance L is Ti Vi/2;
step five: marking a point P marked on the plane map by the identification module into a street view map transmitted by the database;
step six: set up the extension line of calculating the length around P point according to the direction information of ultrasonic wave transmission, look over whether one end that every extension line kept away from P point touches peripheral article and judge the position of P point:
s1: when the ends of the six extension lines far away from the point P are all contacted with an object, the positioning point P is judged to be accurately positioned;
s2: and when one end of the six extension lines far away from the point P is not contacted with the object, the positioning point P is judged to be inaccurate in positioning.
The data receiving unit is in communication connection with the identification unit, the identification unit is in communication connection with the controller, the positioning module is in communication connection with the controller, the controller is in communication connection with the database, the data analysis module is in communication connection with the controller, the database is in communication connection with the data analysis module, the data analysis module is in communication connection with the replacement unit, the replacement unit is in communication connection with the controller, the intelligent device is in communication connection with the replacement unit, and the identification unit is in communication connection with the database.
When the invention works, the data receiving module receives GPS positioning information of a mobile terminal and transmits the GPS positioning information to the identification unit, the latest plane map information and street view map information are stored in the database, the database transmits the plane map information to the identification unit, the identification unit receives the plane map information transmitted by the database and the GPS positioning information of the mobile terminal transmitted by the data receiving module and identifies the GPS positioning information of the mobile terminal, the identification unit transmits the plane map information marked with a positioning point to the controller, the controller receives calibration information transmitted by the identification unit and sends a calling command to the database, the database receives the calling command transmitted by the controller and calls street view map information related to a point P and transmits the street view map information to the data analysis module, the positioning module is a module with an ultrasonic detection function and is used for detecting the position of the mobile terminal, the positioning module is arranged on the mobile terminal, the position of the mobile terminal is set to be a point P0, the positioning module generates ultrasonic waves in six different directions by taking a point P0 as a circle center, the ultrasonic waves generate a return wave after contacting an object, the positioning module receives the return wave and records data information of each ultrasonic wave, the data information comprises the propagation speed of the ultrasonic waves in the air, the round-trip time information of the ultrasonic waves and the transmitting direction information of the ultrasonic waves, the positioning module transmits the data information to the controller, the controller receives the data information transmitted by the positioning module and transmits the data information to the data analysis module, the data analysis module receives the data information transmitted by the controller, the positioning information of a book output by the identification unit and the street view map information transmitted by the database and integrates the data information transmitted by the controller, the positioning information of the book output by the identification unit and the street view map information transmitted by the database to judge the position of the mobile terminal, and the data analysis module transmits the judgment result to a replacement unit, the replacement unit is used for replacing the inaccurate positioning point P, and when the data analysis module judges that the positioning of the point P is inaccurate, the replacement unit replaces the GPS positioning point P with the ultrasonic positioning point P0 of the mobile terminal.
The GPS positioning information of the mobile terminal is received by the data receiving module and transmitted to the identification unit, the latest plane map information and street view map information are stored in the database, the database transmits the plane map information to the identification unit, the identification unit receives the plane map information transmitted by the database and the GPS positioning information of the mobile terminal transmitted by the data receiving module and identifies the GPS positioning information of the mobile terminal, and the position of the mobile terminal is preliminarily judged by the arrangement of the GPS positioning and identification units, so that the position of the mobile terminal is conveniently judged in detail in the following way, the time is saved, and the working efficiency is improved;
meanwhile, the identification unit transmits the plane map information marked with the positioning points to the controller, the controller receives the calibration information transmitted by the identification unit and sends a calling command to the database, the database receives the calling command transmitted by the controller and calls street view map information related to the point P and transmits the street view map information to the data analysis module, the positioning module is a module with an ultrasonic detection function, the positioning module is used for detecting the position of the mobile terminal, the positioning module is installed on the mobile terminal and sets the position of the mobile terminal to be the point P0, the positioning module generates ultrasonic waves in six different directions by taking the point P0 as a circle center, the ultrasonic waves generate a return wave after contacting an object, the positioning module receives the return wave and records data information of each ultrasonic wave, and the data information comprises the propagation speed of the ultrasonic waves in the air, the round-trip time information of the ultrasonic waves and the transmitting direction information of the ultrasonic waves, the positioning module transmits data information to the controller, the controller receives the data information transmitted by the positioning module and transmits the data information to the data analysis module, the data analysis module receives the data information transmitted by the controller, the positioning information of the book output by the identification unit and the street view map information transmitted by the database and integrates the data information transmitted by the controller, the positioning information of the book output by the identification unit and the street view map information transmitted by the database to judge the position of the mobile terminal, through the arrangement of the positioning module and the data analysis module, the surrounding environment of the mobile terminal is analyzed by using ultrasonic waves, the distance between the mobile terminal and an object in each direction is judged, therefore, the specific position of the mobile terminal in the environment is judged, the mobile terminal is more accurately positioned, the phenomenon of inaccurate positioning is prevented, the time is saved, and people can conveniently master the position of the mobile terminal;
meanwhile, the data analysis module transmits the judgment result to the replacement unit, the replacement unit is used for replacing an inaccurate positioning point P, when the data analysis module judges that the positioning of the P is inaccurate, the replacement unit replaces the GPS positioning point P with an ultrasonic positioning point P0 of the mobile terminal, the inaccurate positioning is replaced and corrected through the setting of the replacement unit and then is transmitted to the intelligent equipment, the positioning is more accurate, and the working efficiency is improved.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (4)
1. A method for safely acquiring the position of a mobile terminal is characterized by comprising the following steps:
the method comprises the following steps: acquiring the position of the mobile terminal through a GPS positioning system and marking the position of the mobile terminal as P in the latest plane map;
step two: the position of the mobile terminal is marked as P0 through a positioning module arranged on the mobile terminal, the mobile terminal sends out ultrasonic waves to six different directions in a P0 bit circle shape through an ultrasonic wave generator arranged inside, the ultrasonic waves can feed back after contacting an object, and the propagation time of the ultrasonic waves in the air is recorded;
step three: calculating the distances from the objects in six directions to the mobile terminal according to the propagation time of the ultrasonic waves in the air and the propagation speed of the ultrasonic waves in the air;
step four: setting extension lines of corresponding phase positions according to the distances between objects in six directions of the mobile terminal and the mobile terminal, marking a point P in the plane map in the step one at a corresponding position in a street view map, setting the corresponding extension lines according to the ultrasonic wave transmitting direction of the point P0 by taking the point P as an original point, checking whether one end of the extension line, far away from the point P, is just contacted with the objects, if the end is just contacted, determining that the positioning is accurate, and if one extension line is not just contacted with the objects, determining that the positioning is inaccurate;
step five: and when the positioning is determined to be inaccurate, replacing the point P with the point P0 and sending the point P to the intelligent device.
2. A system for safely acquiring the position of a mobile terminal is characterized by comprising a data receiving module, an identification unit, a database, a positioning module, a controller, a data analysis module, a replacement unit and intelligent equipment;
the data receiving module is used for receiving GPS positioning information of the mobile terminal, the data receiving module is used for receiving the GPS positioning information of the mobile terminal and transmitting the GPS positioning information to the identification unit, the latest plane map information and street view map information are stored in the database, the database transmits the plane map information to the identification unit, the identification unit receives the plane map information transmitted by the database and the GPS positioning information of the mobile terminal transmitted by the data receiving module and identifies the GPS positioning information of the mobile terminal, and the specific identification process is as follows:
the method comprises the following steps: the identification unit automatically identifies the plane map information transmitted by the database and the GPS positioning information of the mobile terminal transmitted by the data receiving module;
step two: marking the positioning point as a point P according to the positioning point acquired by the GPS positioning information of the mobile terminal end transmitted by the data receiving module;
step three: marking a positioning point acquired by GPS positioning information of a mobile terminal at a corresponding position in a planar map transmitted by a database;
the identification unit transmits the plane map information marked with the positioning points to the controller, the controller receives the calibration information transmitted by the identification unit and sends a calling command to the database, and the database receives the calling command transmitted by the controller and calls street view map information related to the P point and transmits the street view map information to the data analysis module;
the positioning module is a module with an ultrasonic detection function, the positioning module is used for detecting the position of the mobile terminal, the positioning module is installed on the mobile terminal, the position of the mobile terminal is set to be a point P0, the positioning module generates ultrasonic waves in six different directions by taking a point P0 as a circle center, the ultrasonic waves generate a return wave after encountering an object, the positioning module receives the return wave and records data information of each ultrasonic wave, the data information comprises the propagation speed of the ultrasonic waves in the air, round-trip time information of the ultrasonic waves and the transmitting direction information of the ultrasonic waves, the positioning module transmits the data information to the controller, the controller receives the data information transmitted by the positioning module and transmits the data information to the data analysis module, and the data analysis module receives the data information transmitted by the controller, the positioning information output by the identification unit and street view map information transmitted by the database and integrates the data information transmitted by the controller The positioning information output by the identification unit and street view map information transmitted by the database judge the position of the mobile terminal and judge whether the positioning point is accurate or not;
the data analysis module transmits the judgment result to a replacement unit, the replacement unit is used for replacing an inaccurate positioning point P, and when the data analysis module judges that the positioning of the point P is inaccurate, the replacement unit replaces the GPS positioning point P with an ultrasonic positioning point P0 of the mobile terminal;
the replacement unit transmits the replaced anchor point P0 to the smart device.
3. The system according to claim 2, wherein the data analysis module receives the data information transmitted by the controller, the positioning information of the book output from the identification unit, and the street view map information transmitted by the database, and integrates the data information transmitted by the controller, the positioning information of the book output from the identification unit, and the street view map information transmitted by the database to determine the position of the mobile terminal, and the specific determination process is as follows:
the method comprises the following steps: the data analysis module automatically extracts ultrasonic information transmitted to different directions by the positioning module, and marks the ultrasonic information in the six directions as Ci, i =1.. 6;
step two: the data analysis module automatically extracts ultrasonic round-trip time information in the data information, the ultrasonic round-trip time information is marked as Ti, i =1.. 6, and Ti and Ci correspond to each other one by one;
step three: the data analysis module automatically extracts the propagation speed of the ultrasonic waves in the data information in the air, and marks the propagation speed of the ultrasonic waves in the air as Vi, i =1.. 6;
step four: calculating the distance L = Ti Vi/2 from the object in the direction to the positioning point according to the propagation speed Vi of the ultrasonic wave in the air and the round-trip time information Ti of the ultrasonic wave;
step five: marking a point P calibrated on the plane map by the identification module into a street view map transmitted by the database;
step six: set up the extension line of calculating the length around P point according to the direction information of ultrasonic wave transmission, look over whether one end that every extension line kept away from P point touches peripheral article and judge the position of P point:
s1: when the ends of the six extension lines far away from the point P are all contacted with an object, the positioning point P is judged to be accurately positioned;
s2: and when one end of the six extension lines far away from the point P is not contacted with the object, the positioning point P is judged to be inaccurate in positioning.
4. The system of claim 2, wherein the data receiving module is communicatively coupled to an identification unit, the identification unit is communicatively coupled to a controller, the positioning module is communicatively coupled to a controller, the controller is communicatively coupled to a database, the data analysis module is communicatively coupled to a controller, the database is communicatively coupled to a data analysis module, the data analysis module is communicatively coupled to a replacement unit, the replacement unit is communicatively coupled to a controller, the smart device is communicatively coupled to a replacement unit, and the identification unit is communicatively coupled to a database.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238154.7A CN110068851B (en) | 2019-03-27 | 2019-03-27 | Method and system for safely acquiring position of mobile terminal |
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| WO2021062670A1 (en) * | 2019-09-30 | 2021-04-08 | 上海飞来信息科技有限公司 | Method for positioning unmanned aerial vehicle, terminal device, and unmanned aerial vehicle |
| WO2021077306A1 (en) * | 2019-10-22 | 2021-04-29 | 深圳市大疆创新科技有限公司 | Return control method of unmanned aerial vehicle, user terminal, and unmanned aerial vehicle |
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