CN112529744A - Method for positioning classroom to realize accurate attendance by utilizing position information of student mobile equipment - Google Patents
Method for positioning classroom to realize accurate attendance by utilizing position information of student mobile equipment Download PDFInfo
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Abstract
The invention relates to an information technology, in particular to a method for positioning a classroom to realize accurate attendance by utilizing position information of student mobile equipment. The method comprises the following steps: (1) and (3) generating a classroom: a teacher logs in a teaching system, the teaching system generates a virtual classroom and generates verification information containing information entering the virtual classroom; (2) inviting the student: the classroom sends verification information containing the information of entering the virtual classroom to the students; (3) students enter a classroom: the students log in the teaching system in a mode of verifying the verification information and enter a virtual classroom; (4) obtaining student position information: the teaching system acquires student position information logged in the teaching system; (5) virtual classroom position calculation: calculating the virtual classroom position of the student position information by adopting a clustering algorithm; (6) checking in attendance: and judging the distance between the student position and the virtual classroom position, and checking the attendance successfully within the set distance. According to the invention, the virtual classroom position is calculated and positioned according to the student positioning clustering, the risk of inaccurate attendance data caused by remote classroom participation of students can be eliminated, and the attendance checking method can efficiently and conveniently help teachers to check attendance.
Description
Technical Field
The invention relates to an information technology, in particular to a method for positioning a classroom to realize accurate attendance by utilizing position information of student mobile equipment.
Background
At present, the informatization technology is rapidly developed, the education concept is gradually mature, the national policy is greatly promoted, and the informatization process in the education field is being developed day by day.
The education informatization deepens into classroom teaching, and a key link is provided, namely an intelligent classroom, and the popular explanation is as follows: in the prior art, the courseware such as ppt, word and the like are generally used for teaching, and the teaching modes are static and single and show teaching contents and the like. The intelligent classroom is much stronger, and as a latest high-tech teaching tool, the intelligent classroom can enhance interactive feedback of the classroom, realize personalized teaching and reduce the burden of teachers and students.
In an interactive classroom, a teacher and students are connected and interacted through informatization equipment, the teacher gives lessons by using a classroom PC, the students are connected through pads, mobile phones and other terminals, and in the scene of advanced education, the students usually use own mobile phones to connect into the classroom.
At present, the intelligent classroom mainly adopts a mode of scanning two-dimensional codes in the classroom of a teacher or inputting dynamic passwords by students to join the classroom, but the problem lies in that:
the two-dimensional code and the dynamic password can be shared by other people, so that students can remotely enter a classroom to avoid the problem of absenteeism, and a solution given by some manufacturers is to shorten the validity period of the two-dimensional code and the dynamic password and refresh the two-dimensional code and the dynamic password frequently, but the solution still has the problems:
and secondly, if the two-dimension code and the dynamic password are refreshed too frequently, the two-dimension code and the dynamic password are inconvenient to join a classroom, and if the two-dimension code and the dynamic password are not refreshed frequently, holes still exist, and students still possibly lack attendance.
In addition, some manufacturers provide another method, for example, attendance is separated from the action of entering a classroom, students in the classroom are required to perform verification through other methods, such as roll call off line, inputting attendance information explained by a teacher in the classroom, and the like, but the problems still exist:
and thirdly, the efficiency is low, the time consumption is long, and the precision is insufficient.
For students to attend class, the class room may be dynamic, and the location of each class is different, which is very common in colleges and universities. By adopting the method, the problem that students are difficult to avoid entering a classroom remotely is solved, and the risk that attendance statistics cannot be effectively carried out is avoided, or the method is not convenient and fast enough.
Disclosure of Invention
The invention aims to provide a method for dynamically positioning a classroom and realizing accurate attendance, and aims to solve the problems that the existing teaching attendance method is difficult to avoid the risk that students remotely enter the classroom and cannot effectively count attendance, or is not convenient and fast enough.
In order to solve the technical problems, the invention adopts the following technical scheme:
the method for positioning the classroom to realize accurate attendance by utilizing the position information of the student mobile equipment comprises the following steps:
(1) and (3) generating a classroom: a teacher logs in a teaching system, the teaching system generates a virtual classroom and generates verification information containing information entering the virtual classroom;
(2) inviting the student: the classroom sends verification information containing the information of entering the virtual classroom to the students;
(3) students enter a classroom: the students log in the teaching system in a mode of verifying the verification information and enter a virtual classroom;
(4) obtaining student position information: the teaching system acquires student position information logged in the teaching system;
(5) virtual classroom position calculation: calculating the virtual classroom position of the student position information by adopting a clustering algorithm;
(6) checking in attendance: and judging the distance between the student position and the virtual classroom position, and checking the attendance successfully within the set distance.
Preferably, in the step of generating a classroom, the verification information is a two-dimensional code or a dynamic password, and in the step of entering the classroom, the student uses a mobile device with a positioning function to scan the two-dimensional code or input the dynamic password by verifying the verification information.
Preferably, in the step of acquiring the student location information, the teaching system acquires the location information of the mobile device logged in the teaching system in a manner that the teaching system acquires the location information of the mobile device logged in the teaching system.
Preferably, in the virtual classroom position calculating step, the student position information adopts a K-medoids clustering algorithm to calculate the virtual classroom position.
Preferably, in the virtual classroom position calculation step, the weights of the position information of a certain number of students logged into the teaching system in the previous calculation are increased.
Preferably, in the virtual classroom position calculation step, a student who logs in the teaching system first is designated as a particle in a cluster, and the position of the particle is not changed until the data amount in the cluster is equal to or less than a predetermined amount.
Compared with the prior art, the invention can at least produce one of the following beneficial effects: according to the invention, the virtual classroom position is calculated and positioned according to the student positioning clustering, the risk of inaccurate attendance data caused by remote classroom participation of students can be eliminated, and the attendance checking method can efficiently and conveniently help teachers to check attendance.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail by referring to the following examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
a method for positioning a classroom to realize accurate attendance by using position information of student mobile equipment comprises the following steps:
(1) and (3) generating a classroom: a teacher logs in a teaching system, the teaching system generates a virtual classroom and generates verification information containing information entering the virtual classroom, and the verification information is a two-dimensional code or a dynamic password or other forms of verification information;
(2) inviting the student: the classroom sends verification information containing the information of entering the virtual classroom to the students;
(3) students enter a classroom: the students log in the teaching system by scanning the two-dimensional code or inputting a dynamic password or other corresponding verification modes by adopting mobile equipment with a positioning function on verification information, and enter a virtual classroom;
(4) obtaining student position information: the teaching system acquires the position information of students logged in the teaching system by acquiring the positioning information of the mobile equipment logged in the teaching system;
(5) virtual classroom position calculation: calculating the virtual classroom position of the student position information by adopting a K-medoids clustering algorithm;
(6) checking in attendance: and judging the distance between the student position and the virtual classroom position, and checking the attendance successfully within the set distance.
Description of the K-medoids Algorithm
In k-means, relative to the target function of k-means, the Euclidean distance in the target function (J) is rewritten into an arbitrary discrete measure function
Wherein
The function represents the difference between the sample point and the current reference point, which is artificially set in advance for the non-real data samples, and thus, the problem is converted to the problem of minimizing the objective function.
Algorithm steps
The algorithm steps are similar to k-means, except that the mean is changed to use the sample as the reference point, and the whole traversal is performed.
The method comprises the following specific steps:
k data samples are randomly selected as a mass point (reference point) Oj (j ═ 1.2.3.. k) from the data samples D.
The remaining sample points are repeatedly assigned to the k cluster classes.
Randomly selecting a non-particle sample Orandom; and calculating reference points of exchange objects Orandom and O1, repeating the operation in the step 2 to generate a new group of cluster classes, calculating an objective function S, exchanging Orandom and O1 if S is less than 0, and keeping the new cluster classes, otherwise, keeping the original central point and the clusters. This step is repeated until the k center points no longer change.
The most preferred embodiment is as follows:
a method for positioning a classroom to realize accurate attendance by using position information of student mobile equipment comprises the following steps:
(1) and (3) generating a classroom: a teacher logs in a teaching system at a real classroom, the teaching system generates a virtual classroom and generates verification information containing information entering the virtual classroom, and the verification information is a two-dimensional code or a dynamic password or other forms of verification information;
(2) inviting the student: the classroom sends the verification information containing the information entering the virtual classroom to students in the real classroom;
(3) students enter a classroom: the students log in the teaching system by scanning the two-dimensional code or inputting a dynamic password or other corresponding verification modes by adopting mobile equipment with a positioning function on verification information, and enter a virtual classroom;
(4) obtaining student position information: the teaching system acquires the position information of students logged in the teaching system by acquiring the positioning information of the mobile equipment logged in the teaching system;
(5) virtual classroom position calculation: calculating the virtual classroom position of the student position information by adopting a K-medoids clustering algorithm;
(6) checking in attendance: and judging the distance between the student position and the virtual classroom position, and checking the attendance successfully within the set distance.
Description of the K-medoids Algorithm
Different from the embodiment 1, since the maximum probability of the first student who joins the virtual classroom is the student who is in the real classroom, the proportion of the position of the first student who joins the virtual classroom in the calculation is increased, specifically: based on the K-medoids algorithm, but different from the ordinary K-medoids algorithm, any point in the cluster is taken as a particle to start calculation, in this embodiment, the first student who joins in the classroom is designated as the particle in the cluster by default, and the position of the particle is not changed until the data volume in the cluster is less than or equal to ten (the number of students who join in the classroom is not more than 10, and the value can be set according to the total number of people), and after the 11 th student joins in, calculation is performed according to the K-medoids algorithm. And changing the sample point into a new particle until the absolute error of a new sample point becomes a particle is smaller than that of the original particle.
Reference throughout this specification to multiple illustrative embodiments means that a particular method described in connection with the embodiments is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, while a method is described in connection with any one embodiment, it is to be understood that it is within the scope of the invention to implement such a method in connection with other embodiments.
Claims (6)
1. The method for positioning the classroom to realize accurate attendance by using the position information of the student mobile equipment is characterized by comprising the following steps of: the method comprises the following steps:
(1) and (3) generating a classroom: a teacher logs in a teaching system, the teaching system generates a virtual classroom and generates verification information containing information entering the virtual classroom;
(2) inviting the student: the classroom sends verification information containing the information of entering the virtual classroom to the students;
(3) students enter a classroom: the students log in the teaching system in a mode of verifying the verification information and enter a virtual classroom;
(4) obtaining student position information: the teaching system acquires student position information logged in the teaching system;
(5) virtual classroom position calculation: calculating the virtual classroom position of the student position information by adopting a clustering algorithm;
(6) checking in attendance: and judging the distance between the student position and the virtual classroom position, and checking the attendance successfully within the set distance.
2. The method for realizing accurate attendance checking by using the student mobile device position information to position the classroom as recited in claim 1, wherein: in the step of generating the classroom, the verification information is a two-dimensional code or a dynamic password, and in the step of entering the classroom, the student scans the two-dimensional code or inputs the dynamic password by adopting a mobile device with a positioning function in a mode of verifying the verification information.
3. The method for realizing accurate attendance checking by using the student mobile device position information to position the classroom as recited in claim 2, wherein: in the step of obtaining the student position information, the teaching system obtains the student position information logged in the teaching system in a mode of obtaining the positioning information of the mobile equipment logged in the teaching system for the teaching system.
4. The method for realizing accurate attendance checking by using the student mobile device position information to position the classroom as recited in claim 1, wherein: in the step of calculating the virtual classroom position, the student position information adopts a K-medoids clustering algorithm to calculate the virtual classroom position.
5. The method for realizing accurate attendance checking by using the student mobile device position information to position the classroom as recited in claim 4, wherein: in the virtual classroom position calculation step, weights of position information of students logged into the teaching system in a specific number are added in the calculation.
6. The method for realizing accurate attendance checking by using the student mobile device position information to position the classroom as recited in claim 4, wherein: in the virtual classroom position calculating step, a student logging in the teaching system firstly is designated as a particle in a cluster, and the position of the particle is not changed until the data volume in the cluster is smaller than or equal to a set volume value.
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| CN109118605A (en) * | 2018-10-25 | 2019-01-01 | 哈尔滨工程大学 | The dedicated course of teaching based on mobile phone positioning is registered device and method |
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2020
- 2020-11-10 CN CN202011247156.1A patent/CN112529744A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102998654A (en) * | 2012-11-23 | 2013-03-27 | 无锡儒安科技有限公司 | Method and device of label phase information and based on passive wireless radio frequency recognition |
| US20150279426A1 (en) * | 2014-03-26 | 2015-10-01 | AltSchool, PBC | Learning Environment Systems and Methods |
| KR20160049730A (en) * | 2014-10-28 | 2016-05-10 | 삼육대학교산학협력단 | Clustering of location-based smart devices attendance recording system |
| CN107578216A (en) * | 2017-09-06 | 2018-01-12 | 华中师范大学 | A kind of classroom is registered system and method |
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