CN113281763B - Double-laser-based long jump distance measurement method - Google Patents
Double-laser-based long jump distance measurement method Download PDFInfo
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- CN113281763B CN113281763B CN202110377019.8A CN202110377019A CN113281763B CN 113281763 B CN113281763 B CN 113281763B CN 202110377019 A CN202110377019 A CN 202110377019A CN 113281763 B CN113281763 B CN 113281763B
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- 238000000691 measurement method Methods 0.000 title claims description 8
- 238000012360 testing method Methods 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims description 10
- 238000012795 verification Methods 0.000 claims description 3
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
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Classifications
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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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The application provides a long jump distance measuring method based on double lasers, which comprises the following steps: verifying the examinee information, and stopping the examination if the examinee information does not pass the examination; if the test is passed, performing the test; measuring the long jump distance of the examinee through a laser ranging plate and a laser range finder to obtain a test distance; obtaining the test distance of limited times of the examinee, taking out the furthest test score set as the examinee, and reporting the generated information and the test time; the laser range finder is moved to a position to be tested, so that the test distance can be obtained; the distance data collected by the device is more accurate.
Description
Technical Field
The application relates to the technical field of computers, in particular to a long jump distance measuring method based on double lasers.
Background
Standing long jump is one of the items that must be tested annually from junior middle school to university graduation for < national student physical health standard >. Standing long jump test mode: and the jump is required to be stopped after the jump wire is started, the line is not allowed to be stepped on, the test is performed three times, and the best one time of the result is recorded as the final result. In the traditional test, more than two testers are required to repeatedly measure through a tape, then read and record, the working efficiency is low, the repeated measurement workload is large, the testers are easy to fatigue, and subjective factors of the testers influence the test result.
Existing comparison document CN201720416447; the name is: standing long jump range finder based on double laser range finding heads: the method mainly uses a tripod to be placed on a foothold for measurement, because the foothold is on a sand pit and possibly uneven, the leveling cannot be ensured, the two emitted lasers are not on the same horizontal plane, and the angle value is large in error through manual rotation, so that the calculated distance is in error. The accuracy of the data obtained by the method is not high.
Disclosure of Invention
The application aims to solve the technical problem of providing a long jump distance measuring method based on double lasers, and the acquired distance data is more accurate.
The implementation mode of the application is as follows: a long jump distance measurement method based on double lasers comprises the following steps: the laser range finder comprises an MCU, a first laser range finding module and a second laser range finding module, wherein the MCU is respectively connected with the first laser range finding module and the second laser range finding module; the method specifically comprises the following steps:
step 1, verifying examinee information, and stopping examination if the examinee information does not pass the examination; if the test is passed, performing the test;
step 2, measuring the long jump distance of the examinee through a laser ranging plate and a laser range finder to obtain a test distance; obtaining the test distance of limited times of the examinee, taking out the furthest test score set as the examinee, and reporting the generated information and the test time;
the operation steps of the laser distance measuring plate and the laser distance measuring instrument are as follows:
step a, adjusting a laser range finder to a horizontal state;
b, placing a laser ranging plate at a first position in front of a laser ranging instrument, obtaining the distance FB from a first laser ranging module at the first position to the laser testing plate, obtaining the distance GC from a second laser ranging module to the laser testing plate, and obtaining the distance BC, wherein the first laser ranging module and the second laser testing module form a vertex A;
step c, obtaining AF and AG values; and solving an angle value of the FAG; further obtaining the value of AB and AC;
step d, according to the value, the distance AH from the point A to the point BC can be obtained;
and e, moving the laser range finder to a position to be tested, and obtaining the test distance.
Further, the laser range finder further comprises a wireless communication module, the wireless communication module is connected to the MCU, and the operation step further comprises the step f of uploading the obtained test distance through the wireless communication module of the laser range finder.
Further, the laser range finder further comprises a touch LCD display module, wherein the touch LCD display module is connected to the MCU; and displaying the test distance through the touch LCD display module.
Further, the laser range finder further comprises an angle tester; the step a is further specifically as follows: and adjusting the laser range finder to be in a horizontal state through the angle tester.
Further, the step b is further specifically:
placing a laser ranging plate at a first position in front of a laser ranging instrument, acquiring the distance FB from a first laser ranging module at the first position to a laser testing plate, acquiring the distance GC from a second laser ranging module to the laser testing plate, and acquiring the distance BC, wherein the first laser ranging module and the second laser testing module form a vertex A;
and moving the laser ranging plate to a second position in parallel, acquiring the distance FD from the first laser ranging module to the laser testing plate at the second position, and acquiring the distance GE from the second laser ranging module to the laser testing plate at the second position to acquire the distance DE.
Further, the step c is further specifically:
calculating according to the similar triangles, and obtaining AF and AG values; the angle value of the angle FAG is obtained according to the cosine theorem; further, the AB and AC values were obtained.
Further, the step 1 is further specifically: the method comprises the steps of playing a name of an examinee by voice, prompting the examinee to brush a quasi-examination certificate, acquiring a quasi-examination certificate number of the examinee, verifying, and stopping examination if the quasi-examination certificate number does not pass the verification; if the examination is passed, prompting the examinee to the appointed area to take the examination.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
the long jump distance measuring method based on the double lasers provided by the embodiment of the application has the advantages that the acquired distance data is more accurate, the equipment cannot be in an inclined state and is influenced by laser inaccuracy, the equipment is low in price, the carrying is convenient, the testing speed is high, and the method can be rapidly applied to an examination site.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
The application will be further described with reference to examples of embodiments with reference to the accompanying drawings.
FIG. 1 is a flow chart of a method in accordance with a first embodiment;
FIG. 2 is a flowchart showing the steps of operation in the first embodiment;
FIG. 3 is a schematic view of the apparatus of the present application;
FIG. 4 is a schematic diagram of a laser tester according to the present application;
FIG. 5 is a first position diagram of the present application;
FIG. 6 is a second position diagram of the present application;
FIG. 7 is a flow chart of the method of the present application;
FIG. 8 is a flow chart of a second method of the present application.
Detailed Description
The technical scheme in the embodiment of the application has the following overall thought:
the application is mainly applied to standing long jump, three-level jump and the like, and the field is not a particularly flat environment.
The method comprises the steps of obtaining effective data through a MESH sensor, calculating the horizontal state of laser ranging equipment, adjusting the equipment to enable the equipment to be in the horizontal state, enabling a first laser ranging module and a second laser ranging module to form an acute angle state, placing a laser ranging plate at a ranging end point, obtaining data of the first laser ranging module and data of the second laser ranging module through double laser ranging, and calculating the vertical distance of the equipment through a mathematical algorithm.
And the achievement data is sent to the intelligent terminal or the background server through the wireless transmitting module, so that automatic recording of the achievement data is realized. The method is convenient to test and measure, simple to operate and low in cost. The method can be completed by a single person, and the operations of measuring, recording and uploading data and the like are performed.
And the wireless transmitting module is used for transmitting the score data to the intelligent terminal or the background server side, so that the score data can be automatically input.
As shown in fig. 3, the present application employs: the system comprises a laser ranging plate, a laser range finder and a wireless intelligent terminal.
As shown in fig. 4, a laser rangefinder: the device comprises a first laser ranging module, a second laser ranging module, an angle tester, an MCU control module, a touch LCD display module, a power management module and a wireless communication module.
The angle tester is used for collecting angle data information, displaying the angle data information on an LCD screen through an LCD display module, and adjusting equipment to enable the equipment to be in a horizontal state.
The laser rangefinder needs to be self-calibrated before use, as shown in fig. 5 and 6, to confirm the laser starting points F, G and the apex a formed by the laser ranging, to confirm the angle FAG, which is generally an acute angle, and the larger the angle, the larger the laser ranging plate is required.
Firstly, selecting to enter a calibration mode on a touch LCD display module, adjusting the distance meter equipment to enable the equipment to be in a horizontal state, and step 1: performing laser test, placing a laser ranging baffle in front of a laser range finder, acquiring a laser distance FB by a first laser ranging module, acquiring a laser distance GC by a second laser ranging module, displaying on an LCD screen, manually measuring BC, inputting a measured value of BC on the LCD screen,
the following steps are selected: placing a laser ranging baffle, wherein the first position and the first position are parallel, measuring FD and GE by a laser range finder, displaying on an LCD screen, manually measuring the length of DE, inputting the length to the LCD screen, and clicking the next step for calculation.
AF, AG, and < FAG, calculated from similar triangles,
1.AF＝((DE*FB)-(FD*BC))/(BC-DE)，
2.AG＝((DE*GC)-(GE*BC))/(BC-DE)，
knowing the length AB, AC, BC of three sides of a triangle, the angle of the angle BAC can be found, the position of the vertex a can be determined, and the vertex position of the rangefinder can be confirmed, according to the cosine theorem c=a+b+b-2 abcos. And displaying the calculation result on a screen, clicking a save button to save the result into the range finder.
As shown in fig. 6, in the normal measurement mode, a calibration distance is set on the lcd screen, the calibration distance is a distance HK from a starting point to a ranging baffle, the distance meter measures the acquired data information in real time, and displays the data information, when the distance of a certain point needs to be measured, the position a of the vertex of the distance meter (the position a is a landing point after long jump) needs to be placed at the ranging point, so that the device is kept in a horizontal state, the ranging device acquires effective data FB, GC, F and G are laser head transmitting points, the lengths of AB and AC are obtained through calculation,
AB＝AF+FB；
AC＝AG+GC；
the method comprises the steps of calculating BC=SQRT (AB+AC-2 AB AC COS (BAC)) according to a mathematical formula, calculating according to a triangular area formula, and displaying S=AB+AC SIN (BAC)/2, S=BC+AH/2 to obtain the horizontal and vertical distance between the vertex of AH=AB+AC SIN (BAC)/BC and the distance between the vertex of AH and a ranging board, wherein the vertical distance is calculated by subtracting the calibration distance from the horizontal and vertical distance, and the required test distance is displayed on an LCD screen. Clicking the uploading score on the screen, uploading the measured result data to the intelligent terminal through the wireless transmitting module by the distance meter, and storing the score and the data information of the examinee by the intelligent terminal. And the real-time test and the real-time uploading result are realized.
As shown in fig. 7, the intelligent terminal searches the background database for the basic information of the student currently under examination, step 1: and (3) voice playing the examinee information, prompting the examinee to prepare an examination, brushing a quasi-examination card by the examinee, comparing with a background database through the quasi-examination card number, and repeating the step (1) when the number of times of error matching of the examinee information reaches the maximum number of times of the system by voice prompting the examinee information errors, importing next examinee information data by the system, and repeating the step (1). After the comparison information passes, the display interface of the intelligent terminal displays basic information, class, school number, name and the like of the examinee. The voice prompts the examinee to examine in the appointed area.
Step 2, as shown in fig. 8, the intelligent terminal prepares to receive the examination results of the examinee for three times, receives the voice broadcasting results of the results, judges whether the results are more than three times, and if not, continues to obtain the examination results in step 2. The method is that three achievements are obtained, the best achievements among the three achievements are extracted, the examination information is reported, and examination time is reached to a background server.
Example 1
As shown in fig. 1 and 2, the present embodiment provides a long jump distance measuring method based on dual lasers, including: the laser range finder comprises an MCU, a wireless communication module, an angle tester, a first laser range finding module and a second laser range finding module, wherein the MCU is respectively connected with the wireless communication module, the angle tester, the first laser range finding module and the second laser range finding module; the method specifically comprises the following steps:
step 1, playing the name of an examinee by voice, prompting the examinee to brush a quasi-examination certificate, acquiring the quasi-examination certificate number of the examinee, verifying, and stopping examination if the quasi-examination certificate number does not pass the verification; if the examination is passed, prompting the examinee to a designated area for examination;
step 2, measuring the long jump distance of the examinee through a laser ranging plate and a laser range finder to obtain a test distance; obtaining the test distance of limited times of the examinee, taking out the furthest test score set as the examinee, and reporting the generated information and the test time;
the operation steps of the laser distance measuring plate and the laser distance measuring instrument are as follows:
step a, adjusting the laser range finder to be in a horizontal state through the angle tester;
b, placing a laser ranging plate at a first position in front of a laser ranging instrument, obtaining the distance FB from a first laser ranging module at the first position to the laser testing plate, obtaining the distance GC from a second laser ranging module to the laser testing plate, and obtaining the distance BC, wherein the first laser ranging module and the second laser testing module form a vertex A;
moving the laser ranging plate to a second position in parallel, acquiring the distance FD from the first laser ranging module to the laser testing plate at the second position, and acquiring the distance GE from the second laser ranging module to the laser testing plate at the second position to acquire the distance DE;
step c, calculating according to the similar triangles, and obtaining AF and AG values; the angle value of the angle FAG is obtained according to the cosine theorem; further obtaining the value of AB and AC;
step d, according to the value, the distance AH from the point A to the point BC can be obtained;
step e, the laser range finder is moved to a position to be tested, so that a test distance can be obtained; when the initial position and the final position (baffle position) are parallel, under the fixed condition, KH is the total length which is the calibrated distance, KA=KH-AH, and KA is the actual distance obtained by testing;
and f, uploading the obtained test distance through a wireless communication module of the laser range finder. The distance to be tested can be obtained through a laser range finder and a similar triangle.
In a preferred aspect, the laser rangefinder further includes a touch LCD display module connected to the MCU; and displaying the test distance through the touch LCD display module.
While specific embodiments of the application have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the application, and that equivalent modifications and variations of the application in light of the spirit of the application will be covered by the claims of the present application.
Claims (5)
1. A long jump distance measurement method based on double lasers is characterized in that: comprising the following steps: the laser range finder comprises an MCU, a first laser range finding module and a second laser range finding module, wherein the MCU is respectively connected with the first laser range finding module and the second laser range finding module; the method specifically comprises the following steps:
step 1, verifying examinee information, and stopping examination if the examinee information does not pass the examination; if the test is passed, performing the test;
step 2, measuring the long jump distance of the examinee through a laser ranging plate and a laser range finder to obtain a test distance; obtaining the test distance of limited times of the examinee, taking out the furthest test score set as the examinee, and reporting the generated information and the test time;
the operation steps of the laser distance measuring plate and the laser distance measuring instrument are as follows:
step a, adjusting a laser range finder to a horizontal state;
b, placing a laser ranging plate at a first position in front of a laser ranging instrument, wherein the laser starting points are F and G, obtaining the distance FB from a first laser ranging module at the first position to the laser testing plate, the distance GC from a second laser ranging module to the laser testing plate, and obtaining the distance BC, wherein the first laser ranging module and the second laser testing module form a vertex A;
moving the laser ranging plate to a second position in parallel, acquiring the distance FD from the first laser ranging module to the laser testing plate at the second position, and acquiring the distance GE from the second laser ranging module to the laser testing plate at the second position to acquire the distance DE;
step c, obtaining AF and AG values; and solving an angle value of the FAG; further obtaining the value of AB and AC;
AF=((DE*FB)-(FD*BC))/(BC-DE)；
AG=((DE*GC)-(GE*BC))/(BC-DE)；
knowing the length AB, AC, BC of three sides of the triangle, according to the cosine theorem c=a+b+b-2 abcos, finding the angle of ++bac, i.e. the angle value of ++fag;
step d, according to the value, the distance AH from the point A to the point BC can be obtained;
and e, moving the laser range finder to a position to be tested, and obtaining the test distance.
2. The double-laser-based long jump distance measurement method according to claim 1, wherein: the laser range finder further comprises a wireless communication module, the wireless communication module is connected to the MCU, and the operation step further comprises the step f of uploading the obtained test distance through the wireless communication module of the laser range finder.
3. The double-laser-based long jump distance measurement method according to claim 1, wherein: the laser range finder further comprises a touch LCD display module, and the touch LCD display module is connected to the MCU; and displaying the test distance through the touch LCD display module.
4. The double-laser-based long jump distance measurement method according to claim 1, wherein: the laser range finder also comprises an angle tester; the step a is further specifically as follows: and adjusting the laser range finder to be in a horizontal state through the angle tester.
5. The double-laser-based long jump distance measurement method according to claim 1, wherein: the step 1 is further specifically: the method comprises the steps of playing a name of an examinee by voice, prompting the examinee to brush a quasi-examination certificate, acquiring a quasi-examination certificate number of the examinee, verifying, and stopping examination if the quasi-examination certificate number does not pass the verification; if the examination is passed, prompting the examinee to the appointed area to take the examination.
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Effective date of registration: 20231220 Address after: 350000 3rd floor, building 16, G area, Fuzhou Software Park, 89 software Avenue, Gulou District, Fuzhou City, Fujian Province Patentee after: Henghongda (Fujian) Sports Technology Co.,Ltd. Address before: 350000 4th floor, building 16, G area, Fuzhou Software Park, 89 software Avenue, Gulou District, Fuzhou City, Fujian Province Patentee before: HENGONDA TECHNOLOGY Co.,Ltd. |