CN114690225A - Identification method for moving object bypassing target - Google Patents
Identification method for moving object bypassing target Download PDFInfo
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- CN114690225A CN114690225A CN202210277954.1A CN202210277954A CN114690225A CN 114690225 A CN114690225 A CN 114690225A CN 202210277954 A CN202210277954 A CN 202210277954A CN 114690225 A CN114690225 A CN 114690225A
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- 238000007405 data analysis Methods 0.000 claims abstract description 29
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- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OQZCSNDVOWYALR-UHFFFAOYSA-N flurochloridone Chemical compound FC(F)(F)C1=CC=CC(N2C(C(Cl)C(CCl)C2)=O)=C1 OQZCSNDVOWYALR-UHFFFAOYSA-N 0.000 description 1
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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
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Abstract
The invention discloses a method for identifying a moving object bypassing a target, which comprises a starting point, an end point and at least one target point, wherein the target point is provided with a GPS positioning device, the method also comprises a server and a data analysis system, the server is used for receiving and storing positioning information sent by the GPS positioning device, the data analysis system is provided with an auxiliary line at the position of the target point, the auxiliary line passes through the target point, and the data analysis system identifies the condition that the moving object passes through the auxiliary line. The method for identifying the moving object bypassing the target can accurately identify the situation that the moving object such as a sailing boat and the like bypasses the target.
Description
Technical Field
The invention relates to the technical field of water sports data analysis, in particular to a method for identifying a moving object bypassing a target.
Background
In order to increase the difficulty of sailing competition and improve the ornamental value, a target point such as a barrier, a marker and the like is usually arranged in the course of the sailing ship, the sailing ship needs to go around the target point and then continue the sailing route when the sailing ship is on the sailing route, and the sailing ship generally turns around or turns around the target after passing through one side of the target.
Sailboat competitions are usually carried out on the sea, the position of a sailboat and the position of a target point both need to be positioned through GPS positioning equipment of the sailboat, the sailboat can send the position information of the sailboat to a server in real time when sailing, the position information of the sailboat is unchanged once the target point is set, the server receives the position information of the sailboat and stores the position information, whether the sailboat bypasses the target point or not is identified through a data analysis system, and a racer is scored according to the situation that the sailboat bypasses the target point.
Referring to fig. 1, in the conventional data analysis system, a method for identifying a moving object such as a sailboat bypassing a target point is to set an identification area bypassing the target around the target point, and after the sailboat enters the identification area and leaves the identification area, the data analysis system identifies the sailboat bypassing the target point, and the existing scoring rule of the data analysis system is as follows: the earlier the sailing boat leaves the identification area, the higher its score. Since different sailing boats enter different positions of the identification area, the sailing boat entering the identification area later is probably to leave the identification area earlier than the sailing boat entering the identification area first, so that the scoring is not accurate, and a more accurate identification method is needed for identifying the condition that a moving object such as the sailing boat bypasses a target point.
Disclosure of Invention
The invention aims to provide a method for identifying a moving object bypassing a target, which can accurately identify the situation that the moving object such as a sailing boat and the like bypasses the target.
The technical scheme adopted by the identification method for the moving object bypassing the target is that the identification method comprises a starting point, an end point and at least one target point, wherein the target point is provided with a GPS positioning device, and further comprises a server and a data analysis system, wherein the server is used for receiving and storing positioning information sent by the GPS positioning device.
Preferably, along the direction from the starting point to the end point of the moving object, an included angle is formed between the target point and two adjacent front and rear points, and the auxiliary line and an angle bisector of the included angle are on the same straight line.
Preferably, when the starting point, the target point and the end point are on the same straight line, the included angle is 180 degrees, and the auxiliary line is perpendicular to a connecting line of the starting point and the end point.
Preferably, when the starting point, the target point and the end point are on the same straight line and the starting point and the end point are on the same point, the included angle is 360 degrees, and the auxiliary line is on the same straight line with a connecting line of the starting point and the target point.
Preferably, the number of the target points is two, the starting point and the end point are respectively symmetrically located at two sides of a connecting line of the two target points, and the auxiliary line and the connecting line of the two target points are on the same straight line.
As a preferred scheme, the data analysis system is provided with a correction area by taking a target point as a circle center, the radius of the correction area is R, the positioning error of the GPS positioning device is X meters, the frequency of the GPS positioning device sending positioning information is Z pieces/second, and when the speed of the moving object is Y meters/second, the algorithm of R is as follows: r =
。
Preferably, the number of the target points is two, the starting point and the end point are the same point, the two target points and the starting point are not on the same straight line, a connecting line between the starting point and a midpoint of the two target points is a reference line, a foot from a trajectory of the moving object to the reference line in the correction area is a connecting point, a distance from the starting point to the connecting point is a movement distance, and when the movement distance is the maximum, the corresponding moving object passes through the auxiliary line.
The number of the target points is two, the starting point and the end point are symmetrically positioned on two sides of a connecting line of the two target points respectively, and the motion trail of the motion object is intersected with a reverse extension line of the connecting line of the two targets in the correction area.
The identification method for the moving object bypassing the target disclosed by the invention has the beneficial effects that: after GPS positioning equipment of a target point sends positioning information of the target point to a server, a data analysis system is provided with an auxiliary line passing through the target point at the position of the target point, when a moving object such as a sailing boat moves, the GPS positioning equipment carried by the data analysis system sends the positioning information of the moving object to the server in real time, the data analysis system identifies the positioning information of the moving object such as the sailing boat and generates a moving track of the moving object, when the moving track of the moving object passes through the auxiliary line, the data analysis system identifies that the moving object bypasses the target and records the time of the moving object passing through the auxiliary line, and the time of different moving objects passing through the auxiliary line is evaluated: the earlier the auxiliary line is crossed, the higher its score. The method of replacing the surface by the line is adopted, the problem that the time interval between entering the identification area and leaving the identification area is long due to the large area of the identification area is solved, and therefore the accuracy of identifying the situation that moving objects such as sailing ships bypass the target is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a conventional recognition method of a moving object bypassing a target according to the present invention.
Fig. 2 is a schematic diagram of a first embodiment of the identification method for a moving object bypassing a target according to the present invention. Fig. 3 is a schematic diagram of a second embodiment of the identification method for a moving object bypassing a target according to the present invention.
Fig. 4 is a schematic diagram of a third embodiment of the identification method for a moving object bypassing a target according to the present invention.
Fig. 5 is a schematic diagram of a third embodiment of the identification method for a moving object bypassing a target according to the present invention.
Fig. 6 is a schematic diagram of a fourth embodiment of the identification method for a moving object bypassing a target according to the present invention.
Fig. 7 is a schematic diagram of the error and correction area of the GPS positioning device of the identification method of the moving object bypassing the target of the present invention.
Fig. 8 is a diagram illustrating a fifth embodiment of the method for identifying a moving object bypassing a target according to the present invention.
Fig. 9 is a diagram illustrating a sixth embodiment of the method for identifying a moving object bypassing a target according to the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the embodiments and drawings of the specification:
referring to fig. 2, a moving object bypasses a target and is sent from a starting point, bypasses the target point 01 via the right side of the target point 01, and arrives at an end point, an included angle is formed between the starting point, the target point 1 and the end point, an auxiliary line 02 is made along an angular bisector of the included angle in the direction in which the moving object bypasses the target point 01, when the moving object moves, a GPS positioning device carried by the moving object sends positioning information of the moving object to a server in real time, after a data analysis system identifies the positioning information of the moving object such as a sailing boat, a moving track 03 of the moving object is generated, when the moving track 03 of the moving object passes through the auxiliary line 02, the data analysis system identifies that the moving object bypasses the target point 01, and the time when the moving object passes through the auxiliary line 02 is recorded. By rating the time different moving objects cross the auxiliary line 02: the earlier the auxiliary line 02 is crossed, the higher its score. The method of replacing the surface by the line is adopted, the problem that the time interval between entering the identification area and leaving the identification area is long due to the large area of the identification area is solved, and therefore the accuracy of identifying the condition that the moving object bypasses the target point 01 is improved.
Referring to fig. 3, when the starting point, the target point 04, the target point 05 and the end point are on the same straight line, an included angle formed by the starting point, the target point 04 and the target point 05 is 180 degrees, an included angle formed by the target point 04, the target point 05 and the end point is 180 degrees, and the auxiliary line 06 and the auxiliary line 07 are both perpendicular to a connecting line of the starting point and the end point. When the movement locus 08 of the moving object passes through the auxiliary line 06, the data analysis system recognizes that the moving object bypasses the target point 04, and when the movement locus 08 of the moving object passes through the auxiliary line 07, the data analysis system recognizes that the moving object bypasses the target point 05.
Referring to fig. 4 and 5, when the starting point, the target point 09, and the ending point are on the same straight line and the starting point and the ending point are at the same point, the included angle formed by the starting point, the target point 09, and the ending point is 360 degrees, and the auxiliary line 10 is on the same straight line with the connecting line of the starting point and the target point. When the movement trajectory 11 of the moving object passes through the auxiliary line 10, the data analysis system recognizes that the moving object bypasses the target point 09.
Referring to fig. 6, when the number of the target points 12 is two, and the starting point and the ending point are symmetrically located at two sides of the connection line of the two target points 12, the auxiliary line 13 is on the same straight line with the connection line of the two target points 12. When the movement trajectory 14 of the moving object passes through the auxiliary line 13 from between the two target points 12, the data analysis system recognizes that the moving object bypasses the target point 12.
Referring to fig. 7, because there is an error in the positioning sent by the GPS positioning device, this error may cause that although the moving object bypasses the target point 16 according to the movement track 15, the moving object identified by the data analysis system bypasses the target point 16 according to the movement track 17 according to the positioning information sent by the GPS positioning device, so that the deviation may cause the identification to be incorrect, and now the error of the GPS positioning device needs to be corrected. The positioning error of the GPS positioning equipment is X meters, and the errors of the GPS positioning equipment of the moving object and the GPS positioning equipment of the target point are added to be 2X meters; the speed of the moving object is Y meters per second, the frequency of positioning information sent by the GPS positioning equipment is Z pieces per second, the distance between two adjacent positioning points on the moving track of the moving object is Y/Z meters, the radius of a correction area taking the target point 16 as the center of a circle is R meters, and according to the pythagorean theorem, the R algorithm is as follows: r =
A circular correction area 18 is set with R as a radius and the target point 16 as a center. Whenever a moving object passes through the correction area 18 and passes through the auxiliary line, the data analysis system recognizes that the moving object bypasses the target point, thereby improving the recognition efficiency of the data analysis system.
For example: assuming that the error of the GPS positioning equipment is 1 meter, the speed of the moving object is 6 meters/second, and the frequency of the equipment for acquiring the position information is 2 strips/second, then R =
=5 m, the volume of the target point is usually small, neglecting, if the target point is large and needs to be considered, then R =5+0.5=5.5 m, assuming the radius of the target point is 0.5 m.
Referring to fig. 8, the number of the target points 19 is two, the starting point and the end point are the same point, the two target points 19 are not on the same straight line with the starting point, the connecting line from the starting point to the midpoint between the two target points 19 is the reference line 20, the foot from the trajectory of the moving object to the reference line 20 in the correction area 18 is the connecting point 21, the distance from the starting point to the connecting point 21 is the movement distance 22, and when the movement distance 22 is the maximum, it is regarded that the movement trajectory of the moving object passes through the auxiliary line at this time, that is, the data analysis system recognizes that the moving object passes through and bypasses the target points 19 between the two target points 19.
Referring to fig. 9, the number of the target points 23 is two, the start point and the end point are symmetrically located at two sides of the connecting line of the two target points 23, respectively, when the motion trajectory 24 of the moving object intersects with the reverse extension line of the connecting line of the two target points 23 in the correction area 18, the moving object is still considered to pass between the two target points 23, and the auxiliary line of the target point 23 coincides with the connecting line of the two target points 23, so that the moving object bypasses the auxiliary line.
In conclusion, by arranging the auxiliary lines at the target points and adopting the method of replacing the lines, the problem that the time interval between entering the identification area and leaving the identification area is long due to the large area of the identification area is solved, and the accuracy of identifying the situation that moving objects such as sailing ships bypass the target is improved. Meanwhile, a correction area is arranged around the target point, so that the error of the GPS positioning equipment is reduced, and the identification efficiency of the data analysis system is improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. A recognition method for a moving object bypassing a target comprises a starting point, a destination point and at least one target point, wherein the target point is provided with a GPS positioning device, the recognition method further comprises a server and a data analysis system, the server is used for receiving and storing positioning information sent by the GPS positioning device, the recognition method is characterized in that the data analysis system is provided with an auxiliary line at the position of the target point, the auxiliary line passes through the target point, and the data analysis system recognizes the condition that the moving object passes through the auxiliary line.
2. The method for identifying the moving object bypassing the object according to claim 1, wherein an angle is formed between the object point and two adjacent front and rear points along a direction from the start point to the end point of the moving object, and the auxiliary line is on the same straight line with an angular bisector of the angle.
3. The method for identifying the moving object bypassing a target according to claim 2, wherein when the start point, the target point and the end point are on the same straight line, the included angle is 180 degrees, and the auxiliary line is perpendicular to a connecting line of the start point and the end point.
4. The method for identifying a moving object bypassing a target according to claim 2, wherein when the start point, the target point and the end point are on the same straight line and the start point and the end point are on the same point, the included angle is 360 degrees, and the auxiliary line is on the same straight line as the connecting line of the start point and the target point.
5. The method of claim 2, wherein the number of the target points is two, the start point and the end point are symmetrically located at two sides of a connecting line of the two target points, and the auxiliary line is on the same straight line with the connecting line of the two target points.
6. The method for identifying the moving object bypassing the target according to any one of claims 1 to 5, wherein the data analysis system is provided with a correction area by taking a target point as a center, the radius of the correction area is R, the positioning error of the GPS positioning device is X meters, the frequency of sending the positioning information by the GPS positioning device is Z pieces/second, and when the speed of the moving object is Y meters/second, the algorithm of R is as follows: r =
。
7. The method for identifying the moving object bypassing the target according to claim 6, wherein the number of the target points is two, the starting point and the end point are the same point, the two target points are not on the same straight line with the starting point, a connecting line between the starting point and a midpoint between the two target points is a reference line, a foot from a trajectory of the moving object to the reference line in the correction area is a connecting point, a distance from the starting point to the connecting point is a movement distance, and when the movement distance is the maximum, the corresponding moving object passes through the auxiliary line.
8. The method according to claim 6, wherein the number of the target points is two, the start point and the end point are symmetrically located at two sides of a connecting line of the two target points, respectively, and the motion trajectory of the moving object intersects with a reverse extension line of the connecting line of the two targets in the correction area.
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| CN202210277954.1A CN114690225A (en) | 2022-03-21 | 2022-03-21 | Identification method for moving object bypassing target |
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|---|---|---|---|---|
| US20050162977A1 (en) * | 2004-01-26 | 2005-07-28 | Michael Henry Reifer | Buoy-to-sailboat distance indicator system |
| AT505353A1 (en) * | 2007-05-29 | 2008-12-15 | Roland Stelzer | METHOD OF NAVIGATING AND MANUFACTURING A WIND VEHICLE DRIVEN WIND VEHICLE |
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