CN202771176U - Time prompter used in class by teacher - Google Patents
Time prompter used in class by teacher Download PDFInfo
- Publication number
- CN202771176U CN202771176U CN 201220088993 CN201220088993U CN202771176U CN 202771176 U CN202771176 U CN 202771176U CN 201220088993 CN201220088993 CN 201220088993 CN 201220088993 U CN201220088993 U CN 201220088993U CN 202771176 U CN202771176 U CN 202771176U
- Authority
- CN
- China
- Prior art keywords
- pin
- indicator
- teacher
- central processor
- capacitor
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Audible And Visible Signals (AREA)
Abstract
The utility model provides a time prompter used in the class by a teacher. The time prompter used in the class by the teacher includes a central processor IC, a crystal oscillator TX and an indicator LED, an indicator LED1, an indicator LED2 and indicator LED3. The crystal oscillator TX is arranged between a second pin and a third pin of the central processor IC and the second pin and the third pin are in ground connection through a capacitor C1 and a capacitor C2 respectively. The time prompter used in the class by the teacher is characterized in that a switch S, a power source DC, a loudspeaker BUZZER and a serial port communication interface COM are added. The central processor IC adopts an advanced micro-power-consumption chip. A first pin and a fourth pin of the central processor IC are connected together and then in ground connection through a capacitor C0. And the first pin and the four pin are connected with a positive electrode of a power source DC through the switch S and connected with a power source indicator LED through a resistor R0. A fifth pin, a sixth pin and a seventh pin of the central processor IC are connected to the indictor LED1, the indicator LED2 and the indicator LED3 through a resistor R1, a resistor R2 and a resistor R3 respectively. The fifth pin of the central processor IC is connected to the loudspeaker BUZZER while the sixth pin, the seventh pin and the eighth pin are connected to the communication interface COM.
Description
Technical field:
The utility model provides a kind of classroom time prompting device, belongs to electronic information technical field.
Background technology:
At present, the teacher in the process of giving lessons mainly with wrist-watch or mobile phone as taking the time and the instrument of progress, owing to there not being time prompting initiatively or loaded down with trivial details because arranging as subsidiary function, just forgotten the time after usually entering the state of giving lessons, will occur the phenomenon of being forbidden, prolonging a class or finishing hurriedly to give lessons is held in the time distribution of a class, namely affect teaching quality, also caused teaching process not finish by teaching programme.
Summary of the invention:
What the novel purpose of this use provided a kind of special use can overcome the classroom time prompting device that defects, active warning teacher are held the time schedule of teaching, guaranteed teaching quality.
The novel purpose of this use is achieved in that
Comprise central processing unit IC, crystal oscillator TX and indicator LED, LED1, LED2, LED3,2 pin of central processing unit IC wherein, be provided with crystal oscillator TX between 3 pin, its 2 pin, 3 pin are respectively through capacitor C 1, C2 ground connection, it is characterized in that: set up switch S, power supply DC, loudspeaker BUZZER and serial communication interface COM, wherein central processing unit IC has adopted advanced little power consumption chip, its 1 pin, 4 pin join by capacitor C 0 ground connection, meet power supply DC through switch S anodal, connect the power supply indication LED through resistance R 0, its 5 pin, 6 pin, 7 pin pass through respectively resistance R 1, R2, R3 receives indicator LED1, LED2 and LED3, its 5 pin is received loudspeaker BUZZER, its 6 pin, 7 pin, 8 pin have been received communication interface COM.
Described classroom time prompting device, light emitting diode is adopted in indicator LED, LED1～3, its anodal corresponding 1 pin, 5 pin, 6 pin, 7 pin that meet central processing unit IC through resistance R 0, R1～3, its minus earth.
Its principle of work is: set the bright hours of instruction that represent of indicator LED1, the bright brief summary time that represents to give lessons of pilot lamp LED2, pilot lamp LED3 is bright to represent that reading or student question, teacher answer questions the time.During use, press switch S, pilot lamp LED1 is bright, and the prompting teacher is hours of instruction now; After a period of time, loudspeaker BUZZER " drips " and cries, and pilot lamp LED2 begins bright, and pilot lamp LED1 extinguishes, and reminds teacher to enter the brief summary time of giving lessons; Again after a period of time, loudspeaker BUZZER continuously " dripping " cries two, pilot lamp LED3 begins bright, pilot lamp LED2 extinguishes, and is that reading or student question, teacher answer questions the time below the prompting teacher, behind the full class, loudspeaker BUZZER continuously " dripping " cries three, pilot lamp LED3 extinguishes, and expression should be finished class, and this moment, indicator circuit entered the dormancy electricity-saving state.
The utility model compared with prior art has following advantage:
1, little power consumption is exempted to arrange, and singly-bound work is simple to operate, easy to use.
2, can time in classroom be divided into teacher's instruction, summary, used by students during reading or put question to three parts according to the on class situation of university, middle school, primary school, and initiatively give acousto-optic hint, to remind teacher to hold the instructional blocks of time progress, finish according to quantity teaching task on time, reach the purpose of as strict as possible govern-education.
3, set up communication interface COM the transmission of data, the adjustment of can upgrading at any time.
Description of drawings:
Fig. 1 is the circuit diagram that the utility model is implemented
Fig. 2 is the utility model fundamental diagram
Embodiment:
1, housing
A whole set of circuit is arranged in the housing, green indicating lamp LED1 wherein, yellow indicator lamp LED2, red led LED3 is arranged on the housing, be used to refer to respectively hours of instruction, give lessons brief summary time and reading or enquirement, the teacher answers questions the time, switch S also is arranged on the housing, enclosure interior central processing unit IC adopts advanced little power consumption chip, its 1 pin, 4 pin join by capacitor C 0 ground connection, meet power supply DC through switch S anodal, its 2 pin, 3 pin correspondences are through capacitor C 1, capacitor C 2 ground connection, be connected to crystal TX between the bipod, its 5 pin, 6 pin, 7 pin connect indicator LED1～3 through the resistance R 1～3 of correspondence, the 5th pin also is connected to loudspeaker BUZZER, its 6 pin, 7 pin, 8 pin are connected communication interface COM.
2, the programming of circuit control program software can be by communication interface COM upgrading in central processing unit IC.
3, subsidiary function adopts the mode of building blocks to make multiple acting indicator with other equipment combination.
Claims (1)
1. classroom time prompting device, comprise central processing unit IC, crystal oscillator TX and indicator LED, LED1, LED2, LED3,2 pin of central processing unit IC wherein, be provided with crystal oscillator TX between 3 pin, its 2 pin, 3 pin are respectively through capacitor C 1, C2 ground connection, it is characterized in that: set up switch S, power supply DC, loudspeaker BUZZER and serial communication interface COM, wherein central processing unit IC has adopted advanced little power consumption chip, its 1 pin, 4 pin join by capacitor C 0 ground connection, meet power supply DC through switch S anodal, connect the power supply indication LED through resistance R 0, its 5 pin, 6 pin, 7 pin pass through respectively resistance R 1, R2, R3 receives indicator LED1, LED2 and LED3, its 5 pin is received loudspeaker BUZZER, its 6 pin, 7 pin, 8 pin have been received communication interface COM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220088993 CN202771176U (en) | 2012-03-12 | 2012-03-12 | Time prompter used in class by teacher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220088993 CN202771176U (en) | 2012-03-12 | 2012-03-12 | Time prompter used in class by teacher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202771176U true CN202771176U (en) | 2013-03-06 |
Family
ID=47777739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220088993 Expired - Fee Related CN202771176U (en) | 2012-03-12 | 2012-03-12 | Time prompter used in class by teacher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202771176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223797A (en) * | 2015-11-07 | 2016-01-06 | 朱克颖 | A kind of Special electric secondary clock of applicable teachers' instruction timing |
-
2012
- 2012-03-12 CN CN 201220088993 patent/CN202771176U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223797A (en) * | 2015-11-07 | 2016-01-06 | 朱克颖 | A kind of Special electric secondary clock of applicable teachers' instruction timing |
| CN105223797B (en) * | 2015-11-07 | 2017-12-05 | 朱克颖 | A kind of Special electric secondary clock of suitable teachers' instruction timing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105590128A (en) | Intelligent card / intelligent hand ring for campus intelligent management evaluation | |
| CN103093672A (en) | Portable electronic technology experimental box | |
| CN204348190U (en) | There is the Analogical Electronics experimental box of multiple choices | |
| CN104424836A (en) | Electronic technology experimental box for classroom teaching | |
| CN205158757U (en) | Visual PLC of portable touch -sensitive screen learns by oneself experimental box | |
| CN202771176U (en) | Time prompter used in class by teacher | |
| CN201732258U (en) | Task supervising and urging countdown timer | |
| CN203844510U (en) | Electronic hourglass | |
| CN106023690A (en) | Learning aid system | |
| CN106157716A (en) | For the Intelligence of Students card that classroom instruction is interactive | |
| CN103646585A (en) | Embedded single-chip microcomputer application technology project training system | |
| CN107481600A (en) | A kind of intelligent scoring experimental box based on level sensor | |
| CN203908672U (en) | Multifunctional sound-measuring device for teachers | |
| CN203070563U (en) | Wartime map displaying teaching aid | |
| CN213338344U (en) | Classroom teaching auxiliary supervising and examining system | |
| CN204614034U (en) | A kind of Evaluation System for Teaching Quality | |
| CN203982646U (en) | Teaching integration Electronic Training platform | |
| CN203085033U (en) | Conductivity measuring device | |
| CN207097389U (en) | Multifunctional student card | |
| CN206210256U (en) | SCM Based demonstration | |
| CN204666337U (en) | A kind of novel optical fiber polishing device | |
| CN108564496B (en) | Student course management system | |
| CN204632156U (en) | For the Intelligence of Students card of classroom instruction interaction | |
| CN204499859U (en) | Intelligent education dais | |
| CN203825661U (en) | Classroom management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20140312 |