CN109360284A - A kind of Intelligence of Students Work attendance management system and method - Google Patents
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- 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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- 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
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Abstract
It includes image capture module, controller, communication module, power module and attendance management computer that the present invention, which provides a kind of Intelligence of Students Work attendance management system and method, system,；Image capture module, communication module and attendance management computer are connected with controller respectively；Power module is electrically connected with image capture module, memory module, controller and communication module respectively, for providing power supply；Image capture module is transmitted to controller for acquiring image data；Controller is used to control the operation of intelligent Checking on Work Attendance management system；Intelligence of Students Work attendance management system provided by the invention can increase substantially the efficiency of schools attendance recording management work, save human and material resources consumed by attendance in the process and time, simplicity, fastization for realizing attendance work reach attendance data accurately, comprehensively, the target of information Real-Time Sharing；Preferably supervision and oversight student it can turn out for work and learn, evaluation and test teaching and classroom simultaneously.
Description
Technical Field
The invention belongs to the technical field of attendance checking, and particularly relates to an intelligent attendance checking management system and method for students.
Background
Students are the largest group in schools, and the management of the students is very complicated; the daily attendance of students and the final smooth completion of the academic industry are closely linked together; the attendance is carried out to the mode of traditional manual roll call, not only has taken a lot of time of giving lessons, inefficiency, the amount of labour is big, attendance information also can not in time share for other mr, perhaps schools in addition, can not really reflect student's the condition of attendance to student's the data and statistical result of gathering of information of attendance are fairly loaded down with trivial details, report and statistics of giving attendance cause huge difficulty, therefore according to the actual teaching condition, develop a practical student intelligence attendance management system and be imperative.
Based on the technical problems in the student attendance, no relevant solution is provided; there is therefore a pressing need to find effective solutions to the above problems.
Disclosure of Invention
The invention aims to provide an intelligent student attendance management system and method aiming at overcoming the defects in the prior art and solving the problem of low student attendance efficiency in the prior art.
The invention provides an intelligent attendance management system for students, which comprises an image acquisition module, a controller, a communication module, a power supply module and an attendance management computer, wherein the image acquisition module is connected with the controller; the image acquisition module, the communication module and the attendance management computer are respectively connected with the controller; the power supply module is electrically connected with the image acquisition module, the storage module, the controller and the communication module respectively and used for supplying power; the image acquisition module is used for acquiring image data and transmitting the image data to the controller; the controller is used for controlling the operation of the intelligent attendance management system; the communication module is used for informing students in class, checking attendance on the internet and transmitting information in a short message mode; the attendance management computer is used for attendance management.
Further, the device also comprises a storage module; the storage module is connected with the controller; the storage module is used for improving the storage capacity of the attendance management system.
Furthermore, the memory module comprises a flash memory and a second generation double data rate synchronous dynamic random access memory; the flash memory is used for storing relevant information of program codes and algorithms of the system; the second generation double data rate synchronous dynamic random access memory is used for storing program and image information of the system.
Further, the image acquisition module comprises an OV5640 camera, a video decoder and an image preprocessor of the digital signal processor
Furthermore, the device also comprises a processing module; the controller comprises a subsystem; the processing module is in communication connection with the subsystem; the processing module is used for receiving the image data and processing the image data.
Furthermore, the system also comprises an I/O interface; the I/O interface is in communication connection with the controller, and is used for transmitting data and providing a port for debugging of the system.
Furthermore, the image acquisition module also comprises a converter; the converter is used for converting the image data into an analog video signal which is convenient to transmit; the OV5640 camera is used for collecting facial images of students; the video decoder is used for converting the analog video signal into a digital video signal and transmitting the digital video signal to the front end of the image preprocessor of the digital signal processor.
Furthermore, the attendance management computer is in communication connection with the controller through a network; the attendance management computer comprises a system management module, a student information module, an attendance information module and a database; the system management module, the student information module and the attendance information module are respectively in communication connection with the database.
By adopting the technical scheme, the attendance management system can assist schools and teachers in attendance management of students; the difficulty of manual attendance checking is reduced, and the attendance checking efficiency is improved; the intelligent student attendance management system provided by the invention can greatly improve the efficiency of school attendance management work, save manpower, material resources and time consumed in the attendance process, realize the simplification and rapidness of the attendance work, and achieve the aims of accurate and comprehensive attendance data and real-time information sharing; meanwhile, the system can better manage and supervise the attendance and study of students, and evaluate teaching and classroom.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be further explained with reference to the drawings, in which:
FIG. 1 is a schematic structural view of an intelligent attendance management system for students according to the present invention;
FIG. 2 is a circuit diagram of a power module of the present invention;
FIG. 3 is a schematic diagram of the connection between K9F1G08U0B and EMIF according to the present invention;
FIG. 4 is a schematic diagram of the MT47H32M16 and DDR2 according to the invention;
FIG. 5 is a circuit diagram of an image acquisition circuit of the present invention;
FIG. 6 is a block diagram of face detection according to the present invention;
FIG. 7 is a block diagram of face recognition in accordance with the present invention;
FIG. 8 is a flow chart of a face detection algorithm of the present invention;
FIG. 9 is a flow chart of a face recognition algorithm of the present invention;
fig. 10 is a functional block diagram of the attendance management computer of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 10, the present invention provides an intelligent attendance management system for students, which comprises an image acquisition module, a controller, a communication module, a processing module, a power module and an attendance management computer; the image acquisition module, the communication module and the attendance management computer are respectively connected with the controller; the power supply module is electrically connected with the image acquisition module, the storage module, the controller and the communication module respectively and used for supplying power; the image acquisition module is used for acquiring image data and transmitting the image data to the controller; the controller is used for controlling the operation of the intelligent attendance management system; the communication module is completed by a wireless network, so that networking attendance and transmission of related information are facilitated; the attendance management computer is used for attendance management; the controller comprises a subsystem; the processing module is in communication connection with the subsystem; the processing module is implemented by TMS320DM6437 and is configured to receive and process the image data.
Preferably, in combination with the above scheme, as shown in fig. 1 to 10, in this embodiment, the power module includes a power circuit; the intelligent attendance management system for students needs three voltages of 3.3V, 1.8V and 1.2V, wherein the 3.3V voltage supplies power to a GPIO module, an OV5640 camera module, a TVP5146 video decoder and a flash memory module of DM 6437; the voltage of 1.8V supplies power to a second generation double data rate synchronous dynamic random access memory module and a controller module of a memory; the voltage of 1.2V supplies power to the digital signal processing core module; the power supply circuit is realized by adopting a switching power supply regulator TPS 54310; the field effect transistor required by the switch power supply is integrated in the TPS54310, the power supply regulator can obtain stable and adjustable output voltage by needing few external devices, and in order to reduce pollution of a digital power supply to an analog power supply, an inductive filter circuit is designed at the power supply output end of the TPS54310, wherein a 3.3V power supply circuit is shown in fig. 2.
Preferably, in combination with the above solutions, as shown in fig. 1 to 10, since the controller DM6437 cannot store large-capacity data such as program codes and image data of the system internally, it is necessary to increase the memory capacity of the system by externally expanding the memory; in this embodiment, the intelligent student attendance management system further comprises a storage module; the storage module is connected with the controller; the storage module is used for improving the capacity of a memory of the attendance management system; furthermore, the memory module comprises a flash memory and a second generation double data rate synchronous dynamic random access memory; flash memory second generation double data rate synchronous dynamic random access memory; the controller DM6437 has an External Memory Interface (EMIF) capable of being connected to various memories, and selects K9F1G08U0B developed by SAMSUG company as a flash memory to expand the memories, and the connection with the EMIF is as shown in fig. 3; furthermore, the second generation double data rate synchronous dynamic random access memory works under the control of a memory controller DDR2, a newly introduced high-speed memory chip of CRON company is MT47H32M16 which is used as the second generation double data rate synchronous dynamic random access memory to expand the memory, in order to meet the requirement of data communication and ensure the normal operation of the student intelligent attendance system, two pieces of MT47H32M16 are selected and connected with the DDR2 controller as shown in FIG. 4.
Preferably, in combination with the above scheme, as shown in fig. 1 to 10, in this embodiment, the image acquisition module includes an OV5640 camera, a video decoder, and an image and processor of the digital signal processor; specifically, a converter is also included; the converter is used for converting the image data into an analog video signal which is convenient to transmit; the OV5640 camera is used for collecting facial images of students; the video decoder TVP5146 is used to convert the analog video signal into a digital video signal and transmit the digital video signal to the image and processor front end of the digital signal processor, and thus to the DM6437 controller, as shown in fig. 5.
Preferably, in combination with the above solutions, as shown in fig. 1 to 10, in this embodiment, the student intelligent attendance management system further includes an I/O interface; the I/O interface is in communication connection with the controller, is used for transmitting data and provides port convenience for debugging of the system.
Preferably, in combination with the above solutions, as shown in fig. 1 to 10, in this embodiment, the attendance management computer is in communication connection with the controller through a network; the attendance management computer comprises a system management module, a student information module, an attendance information module and a database; the system management module, the student information module and the attendance information module are respectively in communication connection with the database; the software of the student intelligent attendance management system adopts C language and Visual Basic programming to realize the powerful control function of the system; the function of the system is realized specifically as follows:
1. and (3) system login: a login system interface of an administrator; inquiring data from a database through a user name and a password input by an administrator, comparing the data with login information input by the administrator, and jumping to a main interface if the database contains the user name and the password data of the administrator and is consistent; if the password is incorrect, prompting that the password is wrong, simultaneously increasing the counter by 1, and when the password input error exceeds 3 times, terminating the program and automatically exiting the system;
2. main functional interface: when the administrator inputs the correct user name and password, the system jumps to the main function interface, namely the interface of the main function; the main function menu comprises five menu options of system management, student information, attendance information, help and exit; by clicking the menu option, a corresponding functional interface appears, and a series of operations can be performed;
3. student information addition window: the administrator can modify, add and delete the information, account and password of the student; an interface for adding student information;
4. attendance record inquiry interface: after corresponding information is selected in the attendance record query interface, the related information and the state information of students can be clearly seen; the time selection menu is inoperable when a day query, a week query, or a school day query is selected.
Correspondingly, in combination with the above solutions, as shown in fig. 1 to 10, the present invention further provides an intelligent attendance management method for students, comprising the intelligent attendance management system for students of claim 1; further comprising the steps of:
s1: the image acquisition module acquires image data of students and transmits the image data to the controller;
s2: the controller receives the image data to process the image data;
s3: the controller transmits the processed image data to an attendance management computer through a network for processing, and informs students in class in a short message mode;
s4: the controller transmits the attendance information processed by the attendance management computer to a third party through the communication module.
Preferably, in combination with the above scheme, in the step S1, the acquiring, by the image acquisition module, image data of the student includes the following steps:
s11: firstly, acquiring facial images of students through an OV5640 camera;
s12: then, the converter converts the face image into an analog video signal for transmission;
s13: then, the video cable transmits the analog video signal to a video decoder to convert the analog video signal into a digital video signal;
s14: finally, the video decoder transmits the digital video signal to the controller, thereby completing the acquisition of the image information.
Preferably, with the above scheme, in this embodiment, the acquiring of the facial image of the student by the OV5640 camera specifically includes face detection and face recognition; the face detection mainly comprises two parts of face processing and face positioning, and a structural block diagram of the face detection is shown in FIG. 6; the method comprises the following steps of firstly, obtaining a binary image, carrying out interference processing on the binary image, wherein the binary image and the interference processing belong to an image preprocessing part, and positioning eye positioning, image editing, size normalization and equalization processing belong to a human face positioning part; the key of the success of the face recognition is whether the features extracted from the image can sufficiently reflect the target features and attributes, and in order to improve the recognition accuracy of the system, the face features are extracted by applying wavelet transformation; the face recognition algorithm comprises a training part and a recognition part, and a structural block diagram of face recognition is shown in fig. 7.
Preferably, the face detection flowchart specifically includes:
s10: reading image information and comparing skin color;
s20: determining whether the frame is a face frame; if not, returning to the step S10 from the beginning; if yes, entering the next step;
s30: horizontally projecting the face image to determine the horizontal position of the eyes; if not, returning to the step S10; if the detection result is found, entering the next step;
s40: vertically projecting a face image and determining the positions of two eyes; if not, returning to the step S10; if the detection result is found, entering the next step;
s50: confirming whether the distance between the two eyes is proper; if not, returning to the step S10; if appropriate, proceed to the next step;
s60: and editing the face image.
Preferably, the flow chart of the face recognition algorithm specifically includes:
s100: the burning program is switched on and starts to read the image information;
s200: preprocessing an image and extracting a face image characteristic value;
s300: reading an image record in a database;
s400: solving the cosine distance between the extracted characteristic value and the characteristic value in the database;
s500: calculating the maximum value of the cosine distance;
s600: when the cosine distance is smaller than the threshold value, the student is not in the database; when the cosine distance is larger than the threshold value, storing the relevant information; the threshold value is a value set for improving the accuracy of face recognition of students, and the threshold value in the system is 0.87.
The student intelligent attendance management system integrating image acquisition, image processing, face detection and face recognition is designed by comprehensively applying various technologies and adopting a method of combining hardware design and software design.
(1) The digital signal processor TMS320DM6437 of TI company is used as a microprocessor, and the analysis design of a hardware system is carried out around the microprocessor, so that the system has more comprehensive control function capability, advancement and stability, and can conveniently expand more functions;
(2) introducing a method, a principle and an algorithm for face acquisition, detection and recognition, and carrying out face recognition by adopting two-layer wavelet decomposition of Symn series through a large amount of experiments;
(3) the attendance management computer interface is designed by using Visual Basic, so that the setting of an advanced intelligent attendance management system is realized, and the humanization of the system is greatly improved;
(4) from the overall operation condition of the system, the system has the characteristics of friendly interface, convenience in operation, stable performance and the like, and can be popularized to other schools or large enterprises for daily attendance management;
(5) the application of the student intelligent attendance management system has very important significance for improving the attendance rate of students and the classroom teaching quality, and has certain promotion effect on realizing the intellectualization of student management.
By adopting the technical scheme, the attendance management system can assist schools and teachers in attendance management of students; the difficulty of manual attendance checking is reduced, and the attendance checking efficiency is improved; the intelligent student attendance management system provided by the invention can greatly improve the efficiency of school attendance management work, save manpower, material resources and time consumed in the attendance process, realize the simplification and rapidness of the attendance work, and achieve the aims of accurate and comprehensive attendance data and real-time information sharing; meanwhile, the system can better manage and supervise the attendance and study of students, and evaluate teaching and classroom.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (10)
1. An intelligent attendance management system for students is characterized by comprising an image acquisition module, a controller, a communication module, a power supply module and an attendance management computer; the image acquisition module, the communication module and the attendance management computer are respectively connected with the controller; the power supply module is electrically connected with the image acquisition module, the storage module, the controller and the communication module respectively and used for supplying power; the image acquisition module is used for acquiring image data and transmitting the image data to the controller; the controller is used for controlling the operation of the intelligent attendance management system; the communication module is used for informing students in class, checking attendance on the internet and transmitting information in a short message mode; the attendance management computer is used for attendance management.
2. The student intelligent attendance management system of claim 1, further comprising a storage module; the storage module is connected with the controller; the storage module is used for improving the capacity of a memory of the attendance management system.
3. The student intelligent attendance management system of claim 2, wherein the memory module comprises a flash memory and a second generation double data rate synchronous dynamic random access memory; the flash memory is used for storing relevant information of program codes and algorithms of the system; the second generation double data rate synchronous dynamic random access memory is used for storing program and image information of a system.
4. The student intelligent attendance management system of claim 1 wherein the image acquisition module comprises an OV5640 camera, a video decoder and an image preprocessor of a digital signal processor.
5. The student intelligent attendance management system of claim 1, further comprising a processing module; the controller comprises a subsystem; the processing module is in communication connection with the subsystem; the processing module is used for receiving the image data and processing the image data.
6. The student intelligent attendance management system of claim 1, further comprising an I/0 interface; the I/0 interface is in communication connection with the controller and is used for transmitting data and providing an interface for debugging a system.
7. The student intelligent attendance management system of claim 4, wherein the image acquisition module further comprises a converter; the 0V5640 camera is used for collecting facial images of students; the converter is used for converting the image data into an analog video signal convenient for transmission; the video decoder is used for converting the analog video signal into a digital video signal and transmitting the digital video signal to the front end of an image preprocessor of a digital signal processor.
8. The student intelligent attendance management system of claim 1, wherein the attendance management computer is in communicative connection with the controller via a network; the attendance management computer comprises a system management module, a student information module, an attendance information module and a database; the system management module, the student information module and the attendance information module are respectively in communication connection with the database.
9. An intelligent attendance management method for students, which is characterized by comprising the intelligent attendance management system for students as claimed in claim 1; further comprising the steps of:
s1: the image acquisition module acquires image data of students and transmits the image data to the controller;
s2: the controller receives the image data to process the image data;
s3: the controller transmits the processed image data to an attendance management computer through a network for processing, and informs students in class in a short message mode;
s4: the controller transmits the attendance information processed by the attendance management computer to a third party through the communication module.
10. The intelligent attendance management method for students according to claim 9, wherein in the step S1, the step of collecting the image data of the students by the image collection module includes the steps of:
s11: firstly, acquiring facial images of students through a 0V5640 camera;
s12: then, the converter converts the face image into an analog video signal for transmission;
s13: then, the video cable transmits the analog video signal to a video decoder to convert the analog video signal into a digital video signal;
s14: finally, the video decoder transmits the digital video signal to the controller, thereby completing the acquisition of image information;
and the step of S11 further includes face detection and face recognition; wherein,
the face detection comprises the following steps:
s10: reading image information and comparing skin color;
s20: determining whether the frame is a face frame; if not, returning to the step S10 from the beginning; if yes, entering the next step;
s30: horizontally projecting the face image to determine the horizontal position of the eyes; if not, returning to the step S10; if the detection result is found, entering the next step;
s40: vertically projecting a face image and determining the positions of two eyes; if not, returning to the step S10; if the detection result is found, entering the next step;
s50: confirming whether the distance between the two eyes is proper; if not, returning to the step S10; if appropriate, proceed to the next step;
s60: editing a face image;
the face recognition algorithm comprises the following steps:
s100: the burning program is switched on and starts to read the image information;
s200: preprocessing an image and extracting a face image characteristic value;
s300: adjusting image records in a database;
s400: solving the cosine distance between the extracted characteristic value and the characteristic value in the stock;
s500: calculating the maximum value of the cosine distance;
s600: when the cosine distance is smaller than the threshold value, the student is not in the database; when the cosine distance is larger than the threshold value, storing the relevant information; the threshold value is a value set for improving the accuracy of face recognition of students, and the threshold value in the system is 0.87.
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| CN110097283A (en) * | 2019-04-30 | 2019-08-06 | 重庆电子工程职业学院 | Education Administration Information System and method based on recognition of face |
| CN112509163A (en) * | 2019-09-16 | 2021-03-16 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Attendance system based on face recognition and control method thereof |
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