CN113012310A - Classroom management system and method based on face recognition and Bluetooth - Google Patents
Classroom management system and method based on face recognition and Bluetooth Download PDFInfo
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- CN113012310A CN113012310A CN202110174245.6A CN202110174245A CN113012310A CN 113012310 A CN113012310 A CN 113012310A CN 202110174245 A CN202110174245 A CN 202110174245A CN 113012310 A CN113012310 A CN 113012310A
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- 238000007726 management method Methods 0.000 claims description 21
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- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000001502 supplementing effect Effects 0.000 description 7
- 230000003993 interaction Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/10—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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Abstract
The invention discloses a class management system and a method based on face recognition and Bluetooth, which relate to the attendance technology, and the system comprises: the camera is used for identifying the face of an attendance checking object in an attendance checking period; the Bluetooth base station is used for establishing Bluetooth communication; the teacher client is used for broadcasting the identification of the first attendance object through the Bluetooth base station according to the first attendance object identified by the camera in the attendance time period, and marking all the first attendance objects as successful attendance; and the student client is used for detecting whether the identifier of the student client exists in the identifier of the first attendance object broadcasted by the Bluetooth base station in the attendance time period, judging whether the student client is in the check-in range if the identifier of the student client does not exist in the identifier of the first attendance object broadcasted by the Bluetooth base station, and connecting the student client to the Bluetooth base station for check-in when the student client judges that the student client is in the check-in range. This scheme can promote attendance efficiency.
Description
Technical Field
The invention relates to an attendance checking technology, in particular to a class management system and method based on face recognition and Bluetooth.
Background
Along with the popularization of higher education, the number of college students in China is increasing day by day. The number of college classroom people is gradually increased, and the college classroom problems are gradually revealed, such as late arrival of college students, early departure, lack of lessons, mobile phone playing in class, little interaction with teachers in class and the like. The problems of late return, early return and the like cannot be effectively solved by manual roll calling of teachers, and the method is time-consuming and labor-consuming.
For example, in a class attendance method based on bluetooth positioning and living body monitoring, a class attendance system based on bluetooth positioning and personnel position detection is proposed in the prior art, and the class attendance system based on the bluetooth positioning and the personnel position detection is used for attendance by using a human face on the premise that the personnel position is confirmed to be in a preset range. But it needs better network environment to upload data, and in its personnel's end of registering and ibeacon matching process, if the number of people who match is too high simultaneously, can cause the matching delay, leads to the attendance speed too slow.
Disclosure of Invention
To solve at least one of the above-mentioned technical problems, the present invention is directed to: an efficient classroom management system and method based on face recognition and Bluetooth are provided.
In a first aspect, an embodiment of the present invention provides:
a class management system based on face recognition and Bluetooth comprises:
the camera is used for shooting an image of an attendance object in an attendance time period;
the teacher client is used for identifying the first attendance objects from the images shot by the camera, broadcasting the identification of the first attendance objects through the Bluetooth base station and marking all the first attendance objects as successful attendance;
and the student client is used for detecting whether the identifier of the student client exists in the identifier of the first attendance object broadcasted by the Bluetooth base station in the attendance time period, judging whether the student client is in the check-in range if the identifier of the student client does not exist in the identifier of the first attendance object broadcasted by the Bluetooth base station, and connecting the student client to the Bluetooth base station for check-in when the student client judges that the student client is in the check-in range.
In some embodiments, the teacher client is further configured to broadcast sign-off information via the bluetooth base station;
the student client is also used for judging whether the student client is in the sign-off range after receiving sign-off information broadcast by the Bluetooth base station, and recording the success of sign-off if the student client is in the sign-off range; if not, recording sign-off failure.
In some embodiments, the teacher client is further configured to scan the student clients to detect whether any of the student clients are turned off or leave the set range.
In some embodiments, the information broadcast by the bluetooth base station includes a course number, an academic number of the first attendance object, and a physical address of the bluetooth base station.
In some embodiments, the student client is further configured to determine whether the bluetooth base station has an idle channel, establish a connection with the bluetooth base station through a physical address of the bluetooth base station when the bluetooth base station has an idle channel, and disconnect the connection after data transmission is completed.
In some embodiments, the teacher client is further configured to actively connect to the student client through a bluetooth base station to obtain the usage information of the mobile phone where the student client is located.
In some embodiments, the student client is further configured to actively connect with the teacher client through a bluetooth base station, and report usage information of a mobile phone where the student client is located.
In some embodiments, the student client is further configured to determine the usage of the electric quantity and the flow of the mobile phone where the student client is located, and when the usage of the electric quantity or the flow exceeds a threshold, the student client is actively connected to the teacher client through the bluetooth base station, and usage information of the mobile phone where the student client is located is reported.
In some embodiments, the student client connects with the teacher client through the bluetooth base station when the bluetooth base station is idle based on a first input instruction, and sends question information to the teacher client according to the first input instruction;
and the teacher client side sends answer information to the student client side based on the second input instruction.
In a second aspect, an embodiment of the present invention provides:
a classroom management method based on face recognition and Bluetooth comprises the following steps:
the teacher client broadcasts the identification of the first attendance object through the Bluetooth base station according to the first attendance object identified by the camera in the attendance time period, and marks all the first attendance objects as successful attendance;
and the student client detects whether the identifier of the student client exists in the identifier of the first attendance object broadcasted by the Bluetooth base station in the attendance time period, if not, the student client judges whether the student client is in the check-in range, and when the student client judges that the student client is in the check-in range, the student client is connected with the Bluetooth base station to carry out check-in.
The embodiment of the invention has the beneficial effects that: the camera is used for identifying the face of an attendance object in an attendance time period; then, through a teacher client, the teacher client is used for broadcasting the identification of the first attendance object through a Bluetooth base station according to the first attendance object identified by the camera in the attendance time period, and marking all the first attendance objects as successful attendance; when the student client acquires and determines that the user does not successfully sign in through the face, the sign supplementing is implemented, so that group sign in can be carried out through the camera with a large visual range, the missing detection condition of large-range face recognition is made up by using Bluetooth sign supplementing, and the sign-in efficiency is improved.
Drawings
FIG. 1 is a flow chart of a check-in process of a class management system based on face recognition and Bluetooth;
fig. 2 is a flow chart of the mobile phone detection and classroom interaction functions of the classroom management system based on face recognition and bluetooth;
fig. 3 is a sign-off flow chart of the classroom management system based on face recognition and bluetooth.
Detailed Description
The invention is further described with reference to the drawings and the specific examples.
Referring to fig. 1, a classroom management system based on face recognition and bluetooth includes:
the camera is used for shooting an image of an attendance object in an attendance time period;
the Bluetooth base station is used for establishing Bluetooth communication;
the teacher client is used for identifying the first attendance objects from the images shot by the camera, broadcasting the identification of the first attendance objects through the Bluetooth base station and marking all the first attendance objects as successful attendance;
and the student client is used for detecting whether the identifier of the student client exists in the identifier of the first attendance object broadcasted by the Bluetooth base station in the attendance time period, judging whether the student client is in the check-in range if the identifier of the student client does not exist in the identifier of the first attendance object broadcasted by the Bluetooth base station, and connecting the student client to the Bluetooth base station for check-in when the student client judges that the student client is in the check-in range.
It should be understood that the teacher client may be installed in a personal computer, the teacher client may be installed on a mobile device such as a mobile phone or a tablet, and the camera may cooperate with the server to implement a face recognition function. The Bluetooth base station is realized based on Bluetooth technology and can be simultaneously connected with a limited number of Bluetooth terminals. The position of the terminal such as a mobile phone can be judged by detecting the RSSI value of the Bluetooth signal.
The camera is used for identifying the face of an attendance object in an attendance time period; then, through a teacher client, the teacher client is used for broadcasting the identification of the first attendance object through a Bluetooth base station according to the first attendance object identified by the camera in the attendance time period, and marking all the first attendance objects as successful attendance; when the student client acquires and determines that the user does not successfully sign in through the face, the sign supplementing is implemented, so that group sign in can be carried out through the camera with a large visual range, the missing detection condition of large-range face recognition is made up by using Bluetooth sign supplementing, and the sign-in efficiency is improved.
In some embodiments, the student client is further configured to upload check-in failure information when the student client determines that the student client is not within the check-in range, and when the student client determines that the student client is not within the check-in range, the teacher client is connected next time.
According to the embodiment, the attendance information can be improved by uploading the attendance failure information when the teacher client is connected next time.
In some embodiments, the teacher client is further configured to broadcast sign-off information via the bluetooth base station;
the student client is also used for judging whether the student client is in the sign-off range after receiving sign-off information broadcast by the Bluetooth base station, and recording the success of sign-off if the student client is in the sign-off range; if not, recording sign-off failure.
The scheme is based on a Bluetooth mode for sign-off, and the sign-off records can be cached in the terminal and uploaded to the teacher client in due time.
In some embodiments, the teacher client is further configured to scan the student clients to detect whether any of the student clients are turned off or leave the set range.
It can be understood that through the functions, the student can be monitored and checked in real time, and early quit and other conditions can be found in time.
In some embodiments, the information broadcast by the bluetooth base station includes a course number, an academic number of the first attendance object, and a physical address of the bluetooth base station.
In some embodiments, the student client is further configured to determine whether the bluetooth base station has an idle channel, establish a connection with the bluetooth base station through a physical address of the bluetooth base station when the bluetooth base station has an idle channel, and disconnect the connection after data transmission is completed.
It will be appreciated that in the above embodiments, the number of connections can be increased by using a quick-connect and quick-disconnect approach. This can reduce the latency of the terminal connecting to the bluetooth base station.
In some embodiments, the teacher client is further configured to actively connect to the student client through a bluetooth base station to obtain the usage information of the mobile phone where the student client is located.
In some embodiments, the student client is further configured to actively connect with the teacher client through a bluetooth base station, and report usage information of a mobile phone where the student client is located.
In the above embodiment, the usage information of the mobile phone of the student can be acquired by using a mode of actively acquiring by the teacher client or actively reporting by the student client, so as to monitor the activities of the student during the class period.
In some embodiments, the student client is further configured to determine the usage of the electric quantity and the flow of the mobile phone where the student client is located, and when the usage of the electric quantity or the flow exceeds a threshold, the student client is actively connected to the teacher client through the bluetooth base station, and usage information of the mobile phone where the student client is located is reported. In this embodiment, the behavior of the student is detected by detecting the usage of the electric quantity and the flow of the mobile phone of the student, and it can be understood that, by threshold judgment, communication can be generated only when the condition is satisfied, and the usage frequency of bluetooth is reduced.
In some embodiments, the student client connects with the teacher client through the bluetooth base station when the bluetooth base station is idle based on a first input instruction, and sends question information to the teacher client according to the first input instruction;
and the teacher client side sends answer information to the student client side based on the second input instruction.
In this way, students can ask questions to the teacher through the student client, and the teacher can also answer the questions of the students. Similarly, the teacher client may send question information to the student client based on a third input instruction, and the student client may send answer information to the teacher client based on a fourth input instruction. The input instructions referred to herein are operation instructions input by a user through, for example, a touch screen, a keyboard, or a mouse.
Referring to fig. 1, a classroom management method based on face recognition and bluetooth includes the following steps:
the teacher client broadcasts the identification of the first attendance object through the Bluetooth base station according to the first attendance object identified by the camera in the attendance time period, and marks all the first attendance objects as successful attendance;
and the student client detects whether the identifier of the student client exists in the identifier of the first attendance object broadcasted by the Bluetooth base station in the attendance time period, if not, the student client judges whether the student client is in the check-in range, and when the student client judges that the student client is in the check-in range, the student client is connected with the Bluetooth base station to carry out check-in.
Referring to fig. 1, 2 and 3, the system comprises a student client, a teacher client, a bluetooth base station and a camera. The teacher client is fixed in a classroom, connected with the camera and the Bluetooth base station in the classroom through wires and can be externally connected with the projector. The student client requests the student to register in real name, and automatically downloads the curriculum schedule of the student from the educational administration website of the school. The system and the method mainly carry out classroom management through four modules of positioning sign-in, classroom interaction, mobile phone monitoring and positioning sign-off.
In foretell location module of registering, a period of time before and after class is the time of registering, teacher's client's external camera is installed at the classroom gate, carry out face acquisition to the student, transmit the face data to teacher's client through wired mode and carry out face identification attendance, accomplish face identification student and register, teacher's client will register information transmission to bluetooth basic station, bluetooth basic station carries out short periodic broadcast simultaneously, the content of broadcast includes this course serial number, and the student's number and the physical address of bluetooth basic station that register, RSSI value. At the moment, a student enters a classroom and opens a student client, the student client receives and analyzes the message, the broadcast of the course is determined according to the course schedule, and only the broadcast of the Bluetooth base station is received and analyzed within the course time, so that the broadcast interference of the Bluetooth base stations of other classrooms can be avoided; the student client can carry out different operations in different time of this classroom, and in a period before and after class, the student client is signed in and is confirmed and is signed in the operation, and in a period before and after class, the student client is signed in and is moved back the operation, and in a period in the middle of the classroom, the student client carries out classroom interaction and cell-phone monitoring operation. If the student has the own student number in the message received by the student client after entering the classroom, the sign-in is successful, and the student client pops up the information of the sign-in success; if the received message does not have the student number, the face recognition sign-in failure is indicated, at the moment, the student client side can carry out positioning and ranging according to the received RSSI value, if the distance is within a preset classroom range, the student client side is automatically connected with the Bluetooth base station according to the received Bluetooth physical address to complete sign-in, the Bluetooth base station can transmit sign-in information to the teacher client side, meanwhile, the message with the student number added is continuously broadcasted, then the student client side is automatically disconnected from the Bluetooth base station, and meanwhile, the student client side pops out the information of successful sign-in. And if the teacher client does not have the face sign-in success information and the sign-supplementing success information of the student, marking the student as sign-in failure when the class formally starts. If the connection of the Bluetooth base station is busy, namely the base station exceeds the connection quantity, the student client side can always request the connection with the Bluetooth base station until the Bluetooth base station has redundant connection channels. Because most students have signed in through face recognition and only a small number of students are not finished due to occlusion and the like, the number of students who need to carry out Bluetooth signature patching is only a small number of students, and the waiting time of the request connection of the student client is very short. In this check-in process, no network is required at all. The flow is shown in figure 1.
In the classroom interaction module, the student client modifies the Bluetooth name of the device per se into the name and the learning number of the student, the Bluetooth base station scans the peripheral student client, the teacher client filters the student clients of other courses according to the student list of the course, the teacher client can select to quickly establish Bluetooth connection and disconnection with some student clients through the Bluetooth base station in the scanning list, and the teacher client can send a prompt and ask questions to the student clients; when the Bluetooth base station has an idle connection channel, because one Bluetooth base station can only be connected with a plurality of Bluetooth devices at the same time, the student client can be quickly connected with the Bluetooth base station according to the Bluetooth physical address received in the positioning sign-in module, and sends information such as questions and class suggestions to the teacher client. If the student client is connected with the teacher client, the student client can be automatically disconnected from the teacher client after no interactive operation exists for a period of time; similarly, the teacher client can automatically disconnect the connection after no interactive operation exists in a period of time.
In the mobile phone monitoring module, in the course time, the student client can count the electricity usage and the network flow usage of the student mobile phone in real time, if the electricity and the flow of the student mobile phone are used for the non-learning software to exceed a certain amount, the student client can record the electricity and the flow, the student client is actively connected with the teacher client through Bluetooth, the statistical data of the student mobile phone is sent to the teacher client, and the teacher client records the statistics and then automatically disconnects the connection. The teacher client can also actively connect with the student client to obtain the mobile phone use condition statistics of the students. The teacher client compares the student clients in the scanning list with the student list of the course, and detects whether the student clients are lacked in the scanning list to judge whether the students close the student clients or leave the scanning range of the Bluetooth base station.
In the positioning sign-off module, the Bluetooth base station broadcasts the number and the RSSI value of the course within a certain time before and after the course, the student client receives and analyzes the message, determines the number of the course to be the number of the course, prevents the broadcast interference of other classrooms, and carries out positioning distance measurement according to the received RSSI value. If the student leaves the classroom and does not receive the RSSI value or the distance is larger than the range, the student client end records the RSSI value as sign-off failure, and the student client end is automatically connected with the teacher client end when the student goes to the next class and uploads the record to the teacher client end; or the teacher client side does not have the student client side of the student in the scanning list of the teacher client side, namely the student leaves the scanning range of the Bluetooth base station or closes the student client side, the teacher client side regards the situation as sign-off failure, if the student client side of the student exists in the teacher client side, the student client side records whether the sign-off failure record of the student is uploaded during the next class, if not, the student is recorded as sign-off success, and if so, the student is recorded as sign-off failure.
It will be appreciated that the above described embodiment has the following advantages:
(1) the method for signing in by face recognition and Bluetooth positioning and sign supplementing is used, so that the signing efficiency and quality are improved, the positioning and sign supplementing of Bluetooth are intelligent, and the student can complete sign supplementing without subsequent operation as long as the student walks into a classroom to open a student client.
(2) The classroom attendance and interaction of the system are completely completed without a network and can be completed by means of Bluetooth.
(3) The mobile phone monitoring module of the system enables teachers to more fully know the mobile phone use conditions of students.
(4) In the Bluetooth connection between the student client and the teacher client, the student client and the teacher client are in selective and intermittent connection, so that the limitation of the number of connected Bluetooth base stations is broken through, and the connection efficiency is improved.
(5) In the sign-off module, the student client can record sign-off information, and students can automatically complete sign-off only by keeping the student client in an open state without any operation, thereby greatly improving the efficiency of sign-off.
The step numbers in the above method embodiments are set for convenience of illustration only, the order between the steps is not limited at all, and the execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a classroom management system based on face identification and bluetooth which characterized in that includes:
the camera is used for shooting an image of an attendance object in an attendance time period;
the Bluetooth base station is used for establishing Bluetooth communication;
the teacher client is used for identifying the first attendance objects from the images shot by the camera, broadcasting the identification of the first attendance objects through the Bluetooth base station and marking all the first attendance objects as successful attendance;
and the student client is used for detecting whether the identifier of the student client exists in the identifier of the first attendance object broadcasted by the Bluetooth base station in the attendance time period, judging whether the student client is in the check-in range if the identifier of the student client does not exist in the identifier of the first attendance object broadcasted by the Bluetooth base station, and connecting the student client to the Bluetooth base station for check-in when the student client judges that the student client is in the check-in range.
2. The face recognition and bluetooth based classroom management system of claim 1, wherein said student client is further configured to record check-in failure information when said student client determines that said student client is not within a check-in range.
3. The face recognition and bluetooth-based classroom management system according to claim 1, wherein the teacher client is further configured to broadcast sign-off information via the bluetooth base station;
the student client is also used for judging whether the student client is in the sign-off range after receiving sign-off information broadcast by the Bluetooth base station, and recording the success of sign-off if the student client is in the sign-off range; if not, recording sign-off failure.
4. The face recognition and bluetooth based classroom management system according to claim 1, wherein said teacher client is further configured to scan student clients to detect whether a student client is turned off or leaves a set range.
5. The face recognition and bluetooth-based classroom management system according to claim 1, wherein the information broadcast by the bluetooth base station includes a course number, a school number of the first attendance object, and a physical address of the bluetooth base station.
6. The classroom management system based on face recognition and bluetooth as claimed in claim 5, wherein the student client is further configured to determine whether the bluetooth base station has an idle channel, establish a connection with the bluetooth base station through a physical address of the bluetooth base station when the idle channel exists, and disconnect the connection after data transmission is completed.
7. The face recognition and bluetooth-based classroom management system according to claim 1, wherein the teacher client is further configured to actively connect to the student clients through a bluetooth base station to obtain information about the use of the mobile phones in which the student clients are located.
8. The student client is also used for actively connecting the teacher client through a Bluetooth base station and reporting the use information of the mobile phone where the student client is located. The classroom management system based on face recognition and bluetooth as claimed in claim 1, wherein the student client connects to the teacher client through the bluetooth base station when the bluetooth base station is idle based on a first input instruction, and sends question information to the teacher client according to the first input instruction;
and the teacher client side sends answer information to the student client side based on the second input instruction.
9. The classroom management system based on face recognition and bluetooth as claimed in claim 7, wherein the student client is further configured to determine usage of power and traffic of a mobile phone in which the student client is located, and when the power or traffic exceeds a threshold, the student client is actively connected to the teacher client through a bluetooth base station and reports usage information of the mobile phone in which the student client is located.
10. A classroom management method based on face recognition and Bluetooth is characterized by comprising the following steps:
the teacher client broadcasts the identification of the first attendance object through the Bluetooth base station according to the first attendance object identified by the camera in the attendance time period, and marks all the first attendance objects as successful attendance;
and the student client detects whether the identifier of the student client exists in the identifier of the first attendance object broadcasted by the Bluetooth base station in the attendance time period, if not, the student client judges whether the student client is in the check-in range, and when the student client judges that the student client is in the check-in range, the student client is connected with the Bluetooth base station to carry out check-in.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114999016A (en) * | 2022-05-24 | 2022-09-02 | 兰州乐智教育科技有限责任公司 | Sign-in method and device based on Bluetooth beacon, computer equipment and storage medium |
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