CN102184241B - System for counting and inquiring classroom state and method for counting classroom state - Google Patents
System for counting and inquiring classroom state and method for counting classroom state Download PDFInfo
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- CN102184241B CN102184241B CN201110126158XA CN201110126158A CN102184241B CN 102184241 B CN102184241 B CN 102184241B CN 201110126158X A CN201110126158X A CN 201110126158XA CN 201110126158 A CN201110126158 A CN 201110126158A CN 102184241 B CN102184241 B CN 102184241B
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Abstract
The invention provides a system for counting and inquiring a classroom state and a method for counting the classroom state. The system comprises a plurality of classroom state counting terminals and a central processing unit which are interconnected with one another according to a network, wherein each of the classroom state counting terminals is fixed on a wall with a blackboard in a classroom and comprises a camera, an image acquisition card, a holder, a holder controller and a main control computer; the central processing unit is used for acquiring classroom state information sent by the classroom state counting terminals and providing inquiring service for a client. By the system for counting and inquiring the classroom state and the method for counting the classroom state, students can know about information such as a classroom occupation situation, a classroom seat unoccupied rate and the like in real time through a webpage browser, so that the students can conveniently select a self-studying place effectively and an educational administration department can manage the classrooms conveniently; therefore, the humanized and intelligent management level of schools can be increased; moreover, the system is interconnected with control systems such as a teaching building light control system and the like so as to provide information of student presence and student distribution in the classrooms for the light control system and provide data support for energy-saving work development of the teaching building.
Description
Technical field
The invention belongs to school's technical field of auxiliary facilities, particularly relate to a kind of classroom statistic inquiry system and statistical method thereof.
Background technology
The place that college student is reviewed one's lessons is generally library or classroom.Because the space of room for individual study is comparatively limited in the library, so the classroom is still the main place that the student reviews one's lessons.The classroom resource of current each colleges and universities is generally nervous relatively, so students often receives the puzzlement that is difficult to find this problem of room for individual study.Mainly show: because the number of student of reviewing one's lessons evening is more, and the student generally hopes to find empty class and classroom fewer in number, thereby generally all can in teaching building, seek a period of time; Class period by day, the student does not generally know the empty class in which classroom, therefore often shuttles back and forth blindly and seeks room for individual study in floor gap; In addition, also possibly there is preceding half section nothing class in some classroom and there is the situation of class the second half section, causes needs of students often to change the place of reviewing one's lessons.
A classroom statistic inquiry system if can be arranged; Can understand classroom number and course arrangement information in the teaching building in real time through web browser; Can make things convenient for the student to carry out the selection of room for individual study on the one hand; Also can be managerial personnel on the other hand the student is provided more detailed study situation, this is significant for the improvement of the enthusiasm that improves student's study, promotion style of study undoubtedly.
Jiangsu University of Science and Technology had designed a kind of distributed passenger number statistical system capable based on embedded system in 2006.This system is made up of some come in and go out demographics devices and concentrated statistic devices, and the demographics of wherein coming in and going out device is installed on each gateway, and be built-in with IMAQ, based on discrepancy behavior identification and the discrepancy demographics and the wireless transmission program of image.It is indoor that concentrated statistic device is installed on centralized control, is built-in with that data gather, early warning and wireless receiving program.The detected discrepancy number of each demographics device of coming in and going out will send concentrated statistic device to wireless mode, gather calculating by concentrated statistic device then, thereby obtain the personnel amount of whole statistical regions.This device can be used for the number of being held in the closed place is carried out real-time statistics.
Northcentral University had designed a kind of bus passenger number automatic statistics meter based on image in 2007.It comprises IMAQ, processing module, and is built-in with image processing algorithm, adopts high-speed dsp and FPGA design, and system's fast operation can be accomplished real-time number identification, and its hardware configuration is simple, stable performance, and Installation and Debugging are convenient.
Firs Technology Co., Ltd. had designed a kind of bus passenger number statistical system capable by video analysis in 2009, was used to solve the technical matters that number on all buses is accurately monitored at the public traffic management center in real time.It has arranged the Video Controller with central processing unit above any bus door internal channel; And through image acquisition device collection video image; After A/D converter is handled, deliver to video demographics module and carry out real-time operation, by means of network interface and supporting communications protocol object information is sent to the computing machine at public traffic management center then.
Ma Junwei in 2009 etc. have designed the device of a kind of automatic statistics classroom number.This device mainly comprises campus card induction zone, LCDs and loudspeaker.The mode that this device utilizes human body emission receiving sensor and campus card to swipe the card counts on the class number.
The Jiang Rui purple had been designed a kind of intelligent power saving and demographics equipment in 2009.Its mainly by single-chip microcomputer, judge executive circuit, infrared modules such as injection device, digital demonstrations formed, utilize and infrared injection device carried out intelligent power saving and demographics, have the effect of the energy-conservation and demographics of intellectuality simultaneously.
Colleges and universities such as Beijing Normal University in 2010 and Ludong University have tried the room for individual study searching platform of WEB version out, click the mouse slightly through this platform students and just can find empty class classroom.
In sum; Domestic existing how tame unit or individual research have gone out towards the passenger number statistical system capable in PE (bus, classroom); But generally only be confined to arrange video camera, infrared to sensors such as injection device, campus card inductors at the place, gateway; Owing to handle based on historical data, so there is the cumulative errors problem.In addition, domestic a plurality of colleges and universities have also begun to try the room for individual study searching platform out, but Query Information generally only comprises static informations such as classroom row levies, the classroom takies, but do not contain the real-time number information in classroom.And up to the present through video camera whole classroom scene is detected, distribute and status informations such as number with the personnel that count, and this information is not also seen relevant report through the system of internet issue.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of students of being convenient to effectively to select to review one's lessons the classroom statistic inquiry system and the statistical method thereof of place and educational administration's division management.
In order to achieve the above object, classroom provided by the invention statistic inquiry system comprises interconnected statistic terminal, a plurality of classroom and center processing unit Network Based; Wherein statistic terminal in classroom is fixed on the wall at blackboard place in each classroom; It obtains classroom number and distributed intelligence based on IMAQ and analysis means; And this information sent to center processing unit, comprise video camera, image pick-up card, The Cloud Terrace, cradle head control device and main control computer; Described video camera links to each other with main control computer through image pick-up card; It is used for gathering in real time the scene information in the classroom; And send this simulating signal to image pick-up card; Image pick-up card carries out analog to digital conversion with above-mentioned analog picture signal again, and the signal after will changing sends main control computer to, so that the successive image Treatment Analysis; The Cloud Terrace joins through cradle head control device and main control computer; Main control computer carries out the rotation of level and vertical both direction according to the movement locus of appointment through cradle head control device control The Cloud Terrace when carrying video camera; To enlarge the observation scope of video camera; Make all seat positions in the classroom can both get into the visual field of video camera, for statistic provides safeguard; The data image signal that simultaneously image pick-up card is sent carries out image pre-service, moving target identification and profile and extracts operation, thereby obtains the classroom status information, then this information is sent to center processing unit, for the succeeding state inquiry provides the data support; Center processing unit is responsible for collecting the classroom status information that send at statistic terminal, classroom, and inquiry service is provided for each client.
Described main control computer is an embedded computer.
Classroom provided by the invention statistic method comprises the following step that carries out in order:
1) the initialized S1 stage of systematic parameter; In this stage, system will carry out initialization operation to scanning route, picture size and the background template information of video camera;
2) the The Cloud Terrace rotation is so that the S2 stage in camera-scanning classroom; In this stage, The Cloud Terrace will be according to the route motion of setting under the control of main control computer, and scene image in the classroom will gathered and store to simultaneous camera;
3) the S3 stage of synthetic classroom overall scenario image; Because The Cloud Terrace video camera when a certain position generally can not cover zone, whole classroom, so in this stage, main control computer is with above-mentioned steps 2) in image stored synthesize, to obtain the overall scenario image;
4) the S4 stage of seating area statistics feature extraction; In this stage, the overall scenario image that main control computer will obtain in step 3) carries out the normalization of denoising and light to be handled, and utilizes classroom template image and profile information to determine the people zone;
5) block S5 stage of judgement; Receive the restriction of video camera shooting angle, a people possibly occupy two seats in its visual field, promptly has occlusion issue; Block the erroneous judgement that causes for minimizing; In this stage, main control computer will judge that carrying out secondary in the zone that the people is arranged judges preliminary, to reduce the probability of erroneous judgement;
6) the S6 stage of mobile demographics; For the target that moves in the classroom, main control computer will adopt dynamic identifying method to count the number of motion, with the accuracy of Guarantee Status data;
7) count that the classroom personnel distribute and the S7 stage of total number of persons; In this stage, main control computer is based on step 5) and 6) the result and draw personnel's in the classroom distribution and total number of persons information.
Classroom provided by the invention statistic inquiry system and statistical method thereof can make the student understand the classroom in real time through web browser and take information such as situation and seat, classroom idleness; Thereby make things convenient for students'effective to select to review one's lessons the management of place and department of educational administration, can improve campus hommization, intelligent management level thus.In addition, native system also can be interconnected with teaching building light dispatch control system, has or not student and student's distributed intelligence for lamp light control system provides the classroom, for carrying out of teaching building energy conservation provides the data support.In addition; This system extends to personnel's statistics of public places such as meeting room, auditorium; And can count personnel's in the current room concrete distributing position,, also some are provided logarithmic data for movable sponsor for the administrator administers meeting-place facilitates; Supply the professional to analyze use, so have bigger market potential and application prospects.
Description of drawings
Fig. 1 is that classroom provided by the invention statistic inquiry system constitutes synoptic diagram.
Fig. 2 is a software system structure synoptic diagram in the statistic inquiry system of classroom provided by the invention.
Fig. 3 is a classroom provided by the invention statistic method flow diagram.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment classroom provided by the invention statistic inquiry system and statistical method thereof are elaborated.
As shown in Figure 1, classroom provided by the invention statistic inquiry system comprises interconnected statistic terminal, a plurality of classroom 1 Network Based and center processing unit 2; Wherein classroom statistic terminal 1 is fixed on the wall at blackboard place in each classroom; It obtains classroom number and distributed intelligence based on IMAQ and analysis means; And this information sent to center processing unit 2, comprise video camera 3, image pick-up card 4, The Cloud Terrace 5, cradle head control device 6 and main control computer 7; Described video camera 3 links to each other with main control computer 7 through image pick-up card 4; It is used for gathering in real time the scene information in the classroom; And send this simulating signal to image pick-up card 4; Image pick-up card 4 carries out analog to digital conversion with above-mentioned analog picture signal again, and the signal after will changing sends main control computer 7 to, so that the successive image Treatment Analysis; The Cloud Terrace 5 joins through cradle head control device 6 and main control computer 7; Main control computer 7 carries out the rotation of level and vertical both direction according to the movement locus of appointment through cradle head control device 6 control The Cloud Terraces 5 when carrying video camera 3; To enlarge the observation scope of video camera 3; Make all seat positions in the classroom can both get into the visual field of video camera 3, for statistic provides safeguard; The data image signal that simultaneously image pick-up card 4 is sent carries out image pre-service, moving target identification and profile and extracts operation, thereby obtains the classroom status information, then this information is sent to center processing unit 2, for the succeeding state inquiry provides the data support; Center processing unit 2 is responsible for collecting the classroom status informations that send at statistic terminals, classroom 1, and inquiry service is provided for each client.
Described main control computer 7 is an embedded computer.
As shown in Figure 2, software is divided into application layer software and bottom software in the statistic inquiry system of classroom provided by the invention.The direct user oriented of application layer software wherein; Be based on the classroom state publications module of WEB webpage; It is deployed in the server of center processing unit 2; The user can and send query requests based on this module of WEB browser login, and like the opening status in classroom or classroom empty-seat rate etc., this module then feeds back to the user through the access system data storehouse with the data that retrieve.Bottom software mainly comprises classroom state real-time statistics module and system database two parts; The former is deployed in the statistic terminal, classroom 1; It judges through the digital picture recognition technology whether each seat has the people in the current classroom, counting the classroom total number of persons, and then obtains classroom seat occupancy rate and personnel's distribution situation; Whenever handle a two field picture, just information such as number in database of triggering system renewal and distribution.System database is deployed in the server in the center processing unit 2, is depositing status informations such as each room schedule and real-time number in it, is the tie of contact classroom state real-time statistics module and classroom state publications module.
As shown in Figure 3, classroom provided by the invention statistic method comprises the following step that carries out in order:
1) the initialized S1 stage of systematic parameter; In this stage, system will carry out initialization operation to scanning route, picture size and the background template information of video camera 3;
2) the The Cloud Terrace rotation is so that the S2 stage in camera-scanning classroom; In this stage, The Cloud Terrace 5 will be according to the route motion of setting under the control of main control computer 7, and scene image in the classroom will gathered and store to simultaneous camera 3;
3) the S3 stage of synthetic classroom overall scenario image; Because The Cloud Terrace 5 video camera 3 when a certain position generally can not cover zone, whole classroom, so in this stage, main control computer 7 is with above-mentioned steps 2) in image stored synthesize, to obtain the overall scenario image;
4) the S4 stage of seating area statistics feature extraction; In this stage, the overall scenario image that main control computer 7 will obtain in step 3) carries out the normalization of denoising and light to be handled, and utilizes classroom template image and profile information to determine the people zone;
5) block S5 stage of judgement; Receive the restriction of video camera 3 shooting angle, a people possibly occupy two seats in its visual field, promptly has occlusion issue; Block the erroneous judgement that causes for minimizing; In this stage, main control computer 7 will judge that carrying out secondary in the zone that the people is arranged judges preliminary, to reduce the probability of erroneous judgement;
6) the S6 stage of mobile demographics; For the target that moves in the classroom, main control computer 7 will adopt dynamic identifying method to count the number of motion, with the accuracy of Guarantee Status data;
7) count that the classroom personnel distribute and the S7 stage of total number of persons; In this stage, main control computer 7 is based on step 5) and 6) the result and draw personnel's in the classroom distribution and total number of persons information.
Claims (3)
1. classroom statistic inquiry system, it is characterized in that: described classroom statistic inquiry system comprises interconnected statistic terminal, a plurality of classroom (1) Network Based and center processing unit (2); Wherein classroom statistic terminal (1) is fixed on the wall at blackboard place in each classroom; It draws classroom number and distributed intelligence based on IMAQ and analysis means; And this information sent to center processing unit (2), statistic terminal, classroom (1) comprises video camera (3), image pick-up card (4), The Cloud Terrace (5), cradle head control device (6) and main control computer (7); Described video camera (3) links to each other with main control computer (7) through image pick-up card (4); It is used for gathering in real time the scene information in the classroom; And send the simulating signal of the scene information of gathering to image pick-up card (4); Image pick-up card (4) carries out analog to digital conversion with above-mentioned simulating signal again, and the signal after will changing sends main control computer (7) to, so that the successive image Treatment Analysis; The Cloud Terrace (5) joins through cradle head control device (6) and main control computer (7); Main control computer (7) carries out the rotation of level and vertical both direction according to the movement locus of appointment through cradle head control device (6) control The Cloud Terrace (5) when carrying video camera (3); To enlarge the observation scope of video camera (3); Make all seat positions in the classroom can both get into the visual field of video camera (3), for statistic provides safeguard; The image that simultaneously image pick-up card (4) is sent synthesizes, to obtain the overall scenario image; The overall scenario image that obtains is carried out the normalization of denoising and light and handle, utilize classroom template image and profile information to determine the people zone; Judge that preliminary carrying out secondary in the zone that the people is arranged judges, to reduce the probability of erroneous judgement; The employing dynamic identifying method counts the number of motion, with the accuracy of Guarantee Status data; Judge the classroom status information that draws number and distributed intelligence in the classroom with the result of demographics based on secondary, then this information is sent to center processing unit (2), inquiring about for succeeding state provides the data support; Center processing unit (2) be responsible for to be collected classroom number and the distributed intelligence that send at statistic terminal, classroom (1), through the issue of WEB webpage, and inquiry service is provided for each client with classroom number and distribution information.
2. classroom according to claim 1 statistic inquiry system is characterized in that: described main control computer (7) is an embedded computer.
3. the statistical method of a classroom as claimed in claim 1 statistic inquiry system, it is characterized in that: the statistical method of described classroom statistic inquiry system comprises the following step that carries out in order:
1) the initialized S1 stage of systematic parameter: in this stage, system will carry out initialization operation to scanning route, picture size and the background template information of video camera (3);
2) the The Cloud Terrace rotation is so that the S2 stage in camera-scanning classroom: in this stage; The Cloud Terrace under the control of main control computer (7) (5) will be according to the route motion of setting; Simultaneous camera (3) is gathered the scene information in the classroom in real time; And sending the simulating signal of the scene information of gathering to image pick-up card (4), image pick-up card (4) carries out analog to digital conversion with above-mentioned simulating signal again, and the signal after will changing sends main control computer (7) to;
3) the S3 stage of synthetic classroom overall scenario image: in this stage, main control computer (7) is with above-mentioned steps 2) in the image that transmits of image pick-up card (4) synthesize, to obtain the overall scenario image;
4) the S4 stage of seating area statistics feature extraction: in this stage, the overall scenario image that main control computer (7) will obtain in step 3) carries out the normalization of denoising and light to be handled, and utilizes classroom template image and profile information to determine the people zone;
5) block S5 stage of judgement: in this stage, main control computer (7) will judge that carrying out secondary in the zone that the people is arranged judges preliminary, to reduce the probability of erroneous judgement;
6) move S6 stage of demographics: for the target that moves in the classroom, main control computer (7) will adopt dynamic identifying method to count the number of motion, with the accuracy of Guarantee Status data;
7) count that the classroom personnel distribute and the S7 stage of total number of persons: in this stage; Main control computer (7) is based on step 5) and 6) the result and draw personnel's in the classroom distribution and total number of persons information; The classroom status information of number and distributed intelligence in the classroom that center processing unit (2) is responsible for sending at collection statistic terminal, classroom (1); The classroom status information is issued through the WEB webpage, for each client provides inquiry service.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110126158XA CN102184241B (en) | 2011-05-16 | 2011-05-16 | System for counting and inquiring classroom state and method for counting classroom state |
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| CN201110126158XA CN102184241B (en) | 2011-05-16 | 2011-05-16 | System for counting and inquiring classroom state and method for counting classroom state |
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| CN102184241B true CN102184241B (en) | 2012-11-07 |
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| CN104899556A (en) * | 2015-05-14 | 2015-09-09 | 中国农业大学 | System for counting persons in classroom based on image recognition |
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| CN105426859A (en) * | 2015-12-01 | 2016-03-23 | 东华大学 | Intelligent monitoring and statistics system for use condition of school playground |
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