CN109685929A - A kind of classroom attendance checking system based on STM32 - Google Patents
A kind of classroom attendance checking system based on STM32 Download PDFInfo
- Publication number
- CN109685929A CN109685929A CN201910174111.7A CN201910174111A CN109685929A CN 109685929 A CN109685929 A CN 109685929A CN 201910174111 A CN201910174111 A CN 201910174111A CN 109685929 A CN109685929 A CN 109685929A
- Authority
- CN
- China
- Prior art keywords
- classroom
- stm32
- system based
- checking system
- attendance checking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/08—Design features of general application for actuating the drive
- G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
- G06M1/101—Design features of general application for actuating the drive by electric or magnetic means by electro-optical means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/27—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum
- G06M1/272—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using photoelectric means
-
- 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
-
- 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
- G07C9/00—Individual registration on entry or exit
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The present invention is using STM32F103RBT6 type single-chip microcontroller as control core, infrared sensor is as detecting element, the sequencing being blocked by detecting former and later two infrared tubes judges the direction of the disengaging of personnel and completes to teach indoor demographics and show attendance situation by LCD liquid crystal display.This system structure is stablized, and reliable performance is low in cost, and can be practical.The daily management to student is reinforced in the realization of the system, accurately holds student attendance rate at any time；Also the daily management to teacher's education and instruction behavior is strengthened, the normal order in education of school is safeguarded, so that the teaching quality of school be continuously improved.
Description
Technical field
The present invention relates to Human-computer Interactive Design field, automatic field, the fields such as sensor.
Background technique
In recent years, as number of college students constantly increase, to a certain extent to each colleges and universities to classroom demographics side
Face adds biggish pressure, and people must ask also higher and higher to the efficiency attended class.It calls the roll on traditional class, looks into people's attendance and account for
With certain hours of instruction, therefore the problem of guaranteeing the learning efficiency on classmates' class, should not be underestimated.
The present invention is the classroom attendance checking system based on STM32 chip.Compared with existing number system, it is based on STM cake core
Classroom attendance checking system is more advantageous, and system entry not only may be implemented and system outlet is effectively combined, realize single gate
Complete the demographics into and out of both direction；The number detected can also be shown on LCD liquid crystal, teacher only needs
By checking that liquid crystal display can carry out real-time monitoring to the indoor number of religion.The classroom attendance checking system be one have compared with
Low cost and compact, easy to operate, can save the design of gate time, have a vast market space.
Summary of the invention
Hardware circuit design of the invention is divided into 3 modules: core circuit device operating circuit module, infrared detection module, fingerprint identification module
And LCD display module.
The present invention selects infrared tube as detection sensor using STM32F103RBT6 single-chip microcontroller as core processor,
Acquire quantity and the disengaging direction of student.LCD liquid crystal display shows that treated data content.The signal of central control module inputs
End is connected with sensing module, and the signal output end of central control module is connected with display module.
STM32 data acquisition of the invention executes parallel, and the number in classroom can be showed access on LCD liquid crystal display,
Leave the existing number of number and classroom in classroom.Sensor module in system is mainly the infrared sensor that front and back is placed
Composition, is transferred to core processor for the timing for the front and back infrared sensor being blocked, STM32F103RBT6 MCU writes in advance
Program judge that direction personnel pass in and out, the number in classroom increases by 1 and is simultaneously shown on LCD, on the contrary, working as latter sensors elder generation quilt
It blocks, such case is that someone has left classroom, at this point, the number that classroom is left subtracts one.If interrupting is by infrared next time
The respective pins triggering of receiver, it is determined that nobody enters or withdraws from a room, and the pupil load in classroom is to pass through entrance
Number of student the number left is subtracted to calculate.Into, leave in the number and classroom in classroom existing number of student all
Real-time display is on LCD liquid crystal display, so that teacher and classmate can easily understand the quantity in classroom, carries out to personnel amount good
Real-time monitoring.
It is as follows that invention software designs total thinking: passing through the work to the corresponding chip pin of two pairs of infrared receiving tubes first
State is configured, to reach the level state that can detecte infrared receiving tube output pin, then by using external interrupt
Mode is measured in real time the output pin of the two infrared emission reception pipes, once being pulled low, will trigger interruption, and right
The interrupt processing function that single-chip microcontroller should be arrived is calculated, and arrives calculating and the statistical function of final number in the generation that this is interrupted,
The interrupt function all thus located is handled.
The present invention not only saves the time again and realizes the real-time monitoring purpose to classroom number, teacher can more rapidly,
Accurately know number of student, while classmate being facilitated efficiently to find the classroom for having vacant seat, effectively raises teaching effect
Rate.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is overall schematic of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is invention software logic diagram.
1. control circuit devices and LCD display in figure, 2. infrared tube transmitting terminals, 3. infrared tube receiving ends.
Specific embodiment
[embodiment 1]
The invention mainly comprises control circuit device and LCD display 1, infrared tube transmitting terminal 2, infrared tube receiving ends 3.Wherein
Whether infrared tube transmitting terminal 2 and infrared tube receiving end 3, which are blocked by detecting infrared ray, can decide whether that someone enters,
When someone enters classroom, preposition infrared tube transmitting terminal can be blocked prior to postposition infrared tube, infrared so as to pass through
Someone, which enters classroom, to be judged to the reception sequence of pipe receiving end 3, classroom number needs "+1 "；On the contrary, when someone leaves classroom
When, postposition infrared tube transmitting terminal is blocked prior to preposition infrared tube, so as to pass through the reception of infrared tube receiving end 3
Sequence judges that someone leaves classroom, and classroom number needs " -1 ".Control circuit device and LCD display 1 realize the system to number
The display of existing number in meter and classroom understands convenient for teacher and classmate and teaches indoor classmate's number and the vacant situation in seat, solution
The problem of artificial roll-call counting certainly takes a long time.
Claims (3)
1. a kind of classroom attendance checking system based on STM32, which is characterized in that including control circuit and LCD display 1, two groups red
Outside to pipe transmitting terminal 2, two groups of infrared tube receiving ends 3.
2. a kind of classroom attendance checking system based on STM32 according to claim 1, which is characterized in that LCD display and control
Circuit processed combines, and installs independently of infrared light electric switch.
3. a kind of classroom attendance checking system based on STM32 according to claim 1, which is characterized in that using STM32 series
Microprocessor count and display, using 4.3 inches of LCD display display counting results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910174111.7A CN109685929A (en) | 2019-03-08 | 2019-03-08 | A kind of classroom attendance checking system based on STM32 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910174111.7A CN109685929A (en) | 2019-03-08 | 2019-03-08 | A kind of classroom attendance checking system based on STM32 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109685929A true CN109685929A (en) | 2019-04-26 |
Family
ID=66197778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910174111.7A Pending CN109685929A (en) | 2019-03-08 | 2019-03-08 | A kind of classroom attendance checking system based on STM32 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109685929A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110264606A (en) * | 2019-07-19 | 2019-09-20 | 上海应用技术大学 | Tutor auxiliary platform intelligent monitoring device and system |
-
2019
- 2019-03-08 CN CN201910174111.7A patent/CN109685929A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110264606A (en) * | 2019-07-19 | 2019-09-20 | 上海应用技术大学 | Tutor auxiliary platform intelligent monitoring device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190426 |
|
| WD01 | Invention patent application deemed withdrawn after publication |