KR20120019999A - Chipset for tracking position and method for driving of chipset for tracking position and terminal - Google Patents
Chipset for tracking position and method for driving of chipset for tracking position and terminal Download PDFInfo
- Publication number
- KR20120019999A KR20120019999A KR1020100083684A KR20100083684A KR20120019999A KR 20120019999 A KR20120019999 A KR 20120019999A KR 1020100083684 A KR1020100083684 A KR 1020100083684A KR 20100083684 A KR20100083684 A KR 20100083684A KR 20120019999 A KR20120019999 A KR 20120019999A
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- South Korea
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- terminal
- chipset
- distance
- location tracking
- intersection
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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
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
According to the present invention, there is provided a method for recognizing a distance between a terminal for transmitting a signal and a lost location tracking chipset for receiving a signal transmitted by the terminal, and a radius of a distance between the terminal and the location tracking chipset lost. Creating an imaginary sphere in spatial coordinates, and finding an intersection with the distance traveled by the user; if the intersection is one, the intersection is taken as the actual position of the lost location tracking chipset; If more than one, the terminal selects an intersection at the most recently measured distance of the virtual sphere and the movement path of the user, and the terminal has lost the position tracking chipset to the intersection selected in the previous step The present invention provides a method for driving a location tracking chipset and a terminal including the step of recognizing the actual location.
Description
BACKGROUND OF THE
Conventional location tracking systems have been proposed in various ways. These include: location tracking systems using GPS satellites, progressive source location tracking systems using high-directional antennas, beacon-based location tracking systems that detect the location of vehicles passing through roads by installing many transceivers on the road, PCS or Local tracking method that analyzes the radio wave received at base station such as cellular phone to determine the approximate location, and transmits the signal for calculating the synchronized position at regular intervals from base station of mobile phone and receives the received signal at portable receiver And a location tracking method that calculates its own location using the information of the signal delay and the signal transmission base station.
Since the methods used in the location tracking system are methods for tracking the location of the person carrying the receiver, there are inadequate problems as a countermeasure when an emergency situation occurs.
GPS signal reception method, which is used most frequently, cannot track location in obstacle areas such as indoors, tunnels, dense buildings, and forests, and consumes a lot of power at all times for quick location tracking. There are drawbacks to this.
In addition, if the GPS receiver does not respond in case of an emergency, the utilization of the GPS receiver is very poor. The gradual position tracking method using the high-directional antenna has a receiver equipped with a high-directional antenna to continuously track and approach the radio wave. In this way, there are disadvantages in that the tracking time is very long and the system is expensive.
The location tracking system using beacons requires a lot of cost because the transmission and reception device must be installed at regular intervals on the road, and it is difficult to track the location in the off-road area. The method of calculating the delay time can reduce the obstacles of the location tracking, but there are problems that the price of the mobile phone rises considerably and the additional system installation cost is very high for the use other than the mobile phone. .
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and uses a distance between a location tracking chipset having a sensor capable of receiving a signal sent from a terminal and a terminal to locate a location tracking chipset. To provide a tracking chipset and a location tracking chipset and a terminal driving method.
According to an embodiment of the present invention, there is provided a method for recognizing a distance between a terminal for transmitting a signal and a lost location tracking chipset for receiving a signal transmitted by the terminal. Creating a virtual sphere in spatial coordinates having a radius as a distance, finding an intersection with the distance traveled by the user; if the intersection is one, the intersection is taken as the actual position of the location tracking chipset which is lost, and When there are two or more intersections, the terminal selects an intersection at the most recently measured distance of the virtual sphere and the movement path of the user, and the terminal selects the intersection selected in the previous step of the location tracking chipset. It provides a location tracking chipset and a method of driving the terminal comprising the step of recognizing the lost as the actual location.
According to a modification of the present invention, there is provided a method for recognizing a distance between a terminal for transmitting a signal and a lost location tracking chipset for receiving a signal transmitted by the terminal. Creating a first virtual sphere in spatial coordinates having a radius as a distance, finding an intersection with the distance traveled by the user, and moving a predetermined distance along the path that has been passed in order to find the item lost by the user. Creating a second virtual sphere having a radius of the distance between the terminal at the location and the location tracking chipset, finding an intersection with the distance traveled by the user, and moving the first virtual sphere and the user Obtaining a common intersection point between an intersection point A with a distance and an intersection point B between the second virtual sphere and the distance traveled by the user; It provides a driving method.
According to the present invention, a method for driving a location tracking chipset and a location tracking chipset to find a location tracking chipset using a distance between a location tracking chipset having a sensor capable of receiving a signal transmitted from a device and a terminal is provided. Can provide.
1 is a perspective view on spatial coordinates when one intersection is in accordance with an embodiment of the present invention.
2 is a perspective view on spatial coordinates when two or more intersections according to an embodiment of the present invention.
3 is a perspective view on spatial coordinates according to a variant of the invention.
4 is a flowchart illustrating a driving method according to an embodiment of the present invention.
5 is a flowchart showing a driving method according to a modification of the present invention.
Hereinafter, with reference to the accompanying drawings will be described in detail the operating principle of the preferred embodiment of the present invention.
1 shows that a user having a terminal in a building B, shown as a cuboid in spatial coordinates (x, y, z), may have lost an object (e.g., a wallet with a chipset) with a tracking chipset attached thereto. In this case, the driving method for searching for a location tracking chipset using a distance between the location tracking chipset having a sensor capable of receiving a signal transmitted from the terminal and the terminal will be described.
While the user moved from position (a) to position (p) and then back to the original position (a), the object with the location tracking chipset was lost (e.g., lost at position (p)). ) Is detected at the location (c), the user sends a signal to the location tracking chipset by using the terminal. At this time, the terminal possessed by the user calculates the distance (line segment cp) between the position p of the position tracking chipset and the position c of the terminal, and creates a virtual sphere having the line segment cp as a radius. Then, the intersection E1 between the surface of the virtual sphere and the path | route (a-> p-> c) which the user moved is calculated | required. The intersection E1 thus obtained becomes the location of the object to which the location tracking chipset is attached, and the user can find the missing item by looking at the location of the location tracking chipset displayed on the display of the terminal. Here, the distance (line segment cp) between the position of the lost article, the position p of the position tracking chipset, and the position c of the terminal is easily calculated by the position (x, y, z) of the spatial coordinates. Is displayed on the display.
FIG. 2 shows that a user having a terminal in a building B shown as a cuboid in spatial coordinates (x, y, z) may receive a signal sent from the terminal when the object having the location tracking chipset is lost. Another driving scheme for locating the location tracking chipset using the distance between the location tracking chipset with a sensor and the terminal is described.
The object with the location tracking chipset attached while the user moves from position (a) to position (b), then ascends to position (d), moves to position (p), and then back to the original position (a). If it is recognized (eg, lost at location p) at location c, the user sends a signal to the location tracking chipset using the terminal it has. At this time, the terminal possessed by the user calculates the distance (line segment cp) between the position p of the position tracking chipset and the position c of the terminal, and creates a virtual sphere having the line segment cp as a radius. Thereafter, the intersection point between the surface of the virtual sphere and the path (a → b → d → p → c) that the user has moved is obtained. In such a case, two intersections E1 and E2 occur. At this time, the intersection point E2 at the past time closest to the present (in this case, the time when the user was at the position p) of the time taken during the user's traveled path is the Location, the user can look for the location of the location tracking chipset displayed on the display of the terminal to find the missing item.
You may also consider the case where a user loses an item with a location tracking chipset at the location of E1 and notices that the item is lost at location (c) while moving back to location (p) and back. When the distance between the chipsets is out of a certain range, when the alarm sound is set from the terminal, the driving is performed in the manner described in FIG. 1 without using the driving method as described above.
FIG. 3 shows that a user having a terminal in a building B shown as a cuboid in spatial coordinates (x, y, z) can receive a signal sent from the terminal when the object having the location tracking chipset is lost. A modified driving scheme for locating a location tracking chipset using a distance between the location tracking chipset having a sensor and the terminal will be described.
While the user has moved within the building (a → b → e → f → p), while moving back to the original location (a), the location tracking chipset has lost an object (for example, location (p ) Is recognized at position (d), and moves to position (c), the user sends a signal to the location tracking chipset using the terminal held at each position (c, d). At this time, the user terminal has a distance (line segment dp) between the position (p) of the position tracking chipset and the position (d) of the terminal, and the distance between the position (p) of the position tracking chipset and the position (c) of the terminal. Compute (segment cp) and create an imaginary sphere with radius of line segment (cp) and line segment (dp), respectively. Then, the intersection point between the surface of each virtual sphere and the path | route (a → b → e → f → p) which the user moved is calculated | required, respectively. In this case, the intersection between the virtual sphere having the line segment dp as the radius and the path traveled by the user is three (E1, E3, E5), and the virtual sphere having the radius of the line segment cp and the user Three intersection points E2, E4, and E5 between the traveled paths are generated. Here, the intersection point between the virtual sphere having the radius of the line segment dp and the path traveled by the user and the intersection point between the virtual sphere having the radius of the line segment cp and the path traveled by the user is E5. This intersection E5 becomes the location of the object to which the location tracking chipset is attached, so that the user can find the missing item by looking at the location of the location tracking chipset displayed on the display of the terminal.
4 is a flowchart showing a driving method of the embodiment according to FIGS. 1 and 2 of the present invention.
First, in step S401, when the distance between the terminal and the location tracking chipset is out of a certain range, an alarm sounds in the terminal, so that the user recognizes that the article to which the location tracking chipset is attached is lost. The terminal measures the distance between the location tracking chipset and the terminal, displays the distance on the display of the terminal, and then creates a virtual sphere with the distance as a radius.
Next, in step S402, the terminal finds the number of intersections E between the virtual sphere as described above and the path traveled by the user. If the number of intersections E is one, the process moves to step S403. If the number of intersections E is two or more, the process moves to step S404.
In step S403, the terminal recognizes one intersection E1 between the virtual sphere and the path traveled by the user as the location where the location tracking chipset is lost, and displays the location of the intersection E1 on the display of the terminal. The user finds the missing location tracking chipset.
In the step S404, for example, when two intersections E1 and E2 occur, one of them becomes the lost location of the actual location tracking chipset. Here, the terminal selects the intersection E2 at the most recently measured distance from the virtual sphere and the user's moving path, removes the intersection point E1 at the measured distance earlier, and then moves to step S405. .
In step S405, the terminal recognizes the intersection E2 selected in the previous step as the actual location where the positioning chipset was lost, and displays the location of the selected intersection E2 on the terminal so that the user can find the location tracking chipset that was lost. do.
5 is a flowchart showing a driving method of a modification according to FIG. 3 of the present invention.
First, in step S501, when the distance between the terminal and the location tracking chipset is out of a certain range, an alarm sounds in the terminal, so that the user recognizes that the article to which the location tracking chipset is attached is lost. The terminal measures the distance between the location tracking chipset and the terminal, displays the distance on the display of the terminal, and then creates a virtual sphere with the distance as a radius.
Next, in step S502, the terminal finds the number of intersections E between the virtual sphere as described above and the path traveled by the user. For example, as shown in FIG. 3, when three intersections E are found, each intersection becomes (E1, E3, E5).
In step S503, when the user moves a predetermined distance (for example, about 50 cm) along the path to find the lost article, the virtual distance of the distance between the terminal and the location tracking chipset at the moved position is set as the radius. Will make a sphere.
In the step S504, the number of intersections E between the sphere surface made in the step S503 and the user's movement path is found. 3, when three intersections E are found, each intersection is, for example, when the number of intersections E is three, each intersection is (E2, E4, E5).
In step S505, the terminal selects the intersections E1, E3, and E5 obtained in step S502, and the intersection point E5 of the intersections E2, E4, and E5 obtained in step S504, and the terminal selects this common point. The intersection E5 is recognized as the actual location where the location tracking chipset is lost, and the location of the selected intersection point E5 is displayed on the terminal so that the user finds the location tracking chipset that was lost.
As mentioned above, although a preferred embodiment of a location tracking chipset, a location tracking chipset, and a method of driving a terminal has been described, the present invention is not limited to the above embodiments, and in the technical field to which the present invention pertains from the embodiments of the present invention. It includes all modifications which are easily changed by those skilled in the art and considered equivalent.
B: Building
a, b, c, d, e, p: position
E1, E2, E3, E4, E5: Intersection
Claims (4)
Creating a virtual sphere in spatial coordinates having a radius of the distance between the terminal and the lost location tracking chipset, and obtaining an intersection point with the distance traveled by the user;
If the intersection is one, the intersection is lost to the actual location of the positioning chipset, and if there are two or more intersections, the terminal measures the distance most recently measured among the virtual sphere and the user's moving path. Selecting an intersection in
And the terminal recognizes the intersection selected in the previous step as the actual location where the location tracking chipset is lost.
Wherein the terminal is a smart phone, characterized in that the location tracking chipset and driving method of the terminal.
Creating a first virtual sphere in spatial coordinates having a radius of the distance between the terminal and the lost location tracking chipset, and finding an intersection with the distance traveled by the user;
In order to find the lost item, the user moves a predetermined distance along a path that is passed, and creates a second virtual sphere whose radius is the distance between the terminal and the location tracking chipset at the moved position, and the user moves Finding the intersection with a distance,
Obtaining a common intersection point among the intersection point A between the first virtual sphere and the distance traveled by the user and the intersection point B between the second virtual sphere and the distance traveled by the user; Driving method of the terminal.
Wherein the terminal is a smart phone, characterized in that the location tracking chipset and driving method of the terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100083684A KR20120019999A (en) | 2010-08-27 | 2010-08-27 | Chipset for tracking position and method for driving of chipset for tracking position and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100083684A KR20120019999A (en) | 2010-08-27 | 2010-08-27 | Chipset for tracking position and method for driving of chipset for tracking position and terminal |
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| Publication Number | Publication Date |
|---|---|
| KR20120019999A true KR20120019999A (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020100083684A KR20120019999A (en) | 2010-08-27 | 2010-08-27 | Chipset for tracking position and method for driving of chipset for tracking position and terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101334271B1 (en) * | 2012-03-28 | 2013-12-02 | 주식회사 이에스피 | Mobile communication terminal for preventing loss of personal belongings and loss prevention apparatus for the mobile communication terminal |
-
2010
- 2010-08-27 KR KR1020100083684A patent/KR20120019999A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101334271B1 (en) * | 2012-03-28 | 2013-12-02 | 주식회사 이에스피 | Mobile communication terminal for preventing loss of personal belongings and loss prevention apparatus for the mobile communication terminal |
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