CN2297761Y - Microsquares teaching device - Google Patents
Microsquares teaching device Download PDFInfo
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- CN2297761Y CN2297761Y CN 97208584 CN97208584U CN2297761Y CN 2297761 Y CN2297761 Y CN 2297761Y CN 97208584 CN97208584 CN 97208584 CN 97208584 U CN97208584 U CN 97208584U CN 2297761 Y CN2297761 Y CN 2297761Y
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Abstract
The utility model discloses a teaching apparatus, which is provided with a central control room and a plurality of micro-grid rooms, wherein, the central control room is provided with a central computer and a central division processor; each micro-grid room is provided with a micro-computer and a control extension; the extension is controlled by the central division processor and the micro-grid rooms. The central division processor and the micro-grid rooms are respectively connected with the control and automatic platform of a video record, a lens and microphone; the central computer, computers in the micro-grid rooms, a remote control processor, the central division processor and the connection opening of the control extensions in the micro-grid rooms are connected by the RS-232 network. The utility model has the advantage of high automation. The utility model has many functions, such as double-way visual session, etc.
Description
The utility model relates to a kind of teaching equipment, and is a kind of with microcomputerized control, electronic teaching device with multiple functions such as two-way audiovisual dialogues.
Microteaching is a kind of new teaching pattern that is applicable to normal colleges and schools of carrying out in recent years, and its principle as shown in Figure 1.There is following deficiency in original tutoring system:
(1) narrow, the speed of the range of control of control system is slow, operation is cumbersome, complex circuit, messy failure rate are higher.
(2) instructional function is perfect inadequately, the difficult best joint that forms of Faculty and Students in teaching.The teacher is passive, is difficult for reaching the teaching efficiency of expection;
(3) from management view, owing to technically in the system also exist certain problem, class management, data management is imperfection all, is difficult to realize the data analysis and the processing of higher levels of teaching research and science.
The microteaching device that the purpose of this utility model provides a kind of automaticity height, has multiple functions such as two-way audiovisual dialogue.
Principle of the present utility model is: a Computer Processing center, a plurality of Computer Processing terminals, by the system interface circuit, the external unit of whole electrochemical systems, couple together as video camera, televisor, video recorder etc.,, realize finishing TV dialogue, video recording with simple device by the unified control of computer operating system, realize television broadcasting, regularly, give the correct time, examination and the construction of curriculum, systemic-functions such as data management.
Therefore, the utility model is provided with central control room (CCR) and several little lattice chambers, and central control room (CCR) is provided with centralized computer and center divisional processing machine, and each little lattice chamber is provided with little lattice computer and control extension set; Center divisional processing machine and each little lattice chamber control extension set respectively are connected to TV, video recording control, electric platforms, camera lens control and microphone.
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Fig. 1 is the microteaching pattern diagram;
Fig. 2 is the utility model principle assumption diagram;
Fig. 3 is the utility model Master Control Center structural representation;
Fig. 4 is the structural representation of the little lattice of the utility model chamber;
Fig. 5 is the utility model remote signal output circuit diagram;
Fig. 6 is the utility model cradle head control voltage generating unit parallel circuit figure;
Fig. 7 is the utility model camera lens control voltage generating unit parallel circuit figure;
Fig. 8 is the utility model audio signal processing circuit figure;
Fig. 9 is the utility model vision signal hand-off process circuit diagram;
With reference to Fig. 2～Fig. 4, the utility model comprises central control room (CCR) and little lattice chamber.
With reference to Fig. 2, the utility model is by centralized computer (1), and little lattice chamber computer (2), explanation and remote control processor (3), center divisional processing machine (4), little lattice chamber control extension set (5), TV are formed with video recording (6), electric platform and camera lens (7) and microphone (8); The serial ports of centralized computer (1) is access to the serial ports of little lattice chamber computer (2) and explanation and remote control processor (3) by RS-232 type grid line; Explanation and remote control processor (3) output serial ports are access to the serial ports of center divisional processing machine (4) and little lattice chamber control extension set (5) respectively; The two-way output of center divisional processing machine (4) is access to TV and video recording (6A) and electric platform and camera lens (7A) respectively; The two-way output of little lattice chamber control extension set (5) is access to TV and video recording (6B) and electric platform and camera lens (7B) respectively; Also be provided with microphone (8A, 8B) input at center divisional processing machine (4) and little lattice chamber control extension set (5).
By accompanying drawing 2,3 as can be known, this utility model external hardware device: compositions such as televisor, video recorder modulator, explanation telepilot, center divisional processing machine, little lattice main control extension set add all kinds of softwares: computer network program, single-chip microcomputer treatment technology etc.By further investigation to the microteaching theory, refine, eliminated the various machinery of old-fashioned little case system and touched the equipment of accounting for, make us the action button of dim eyesight small house unrest, complicated numerous on line, use the modern computer technology, the single-chip microcomputer treatment technology connects and forms hardware device.
What time following specify branch:
One, operation control: as can be seen from Figure 1, all operations all carries out on computers, Master Control Center and each little lattice host computer are formed a network, control center can operate all functions of system, and each little lattice chamber has under the situation of control center's mandate, could control the partial function of native system and the equipment of this chamber.All operational orders are by RS-232 (serial ports) output of Master Control Center computer, carry out the explanation of all kinds of orders and produce all kinds of remote signals through explanation and remote control processor (as TV remote, video recorder remote control etc.), back outputting data signals and remote signal, be connected to center divisional processing machine and each little lattice chamber control extension set, each extension set connects according to corresponding signal each equipment is controlled according to the address code of being compiled.
Two, the processing of video-audio signal:
A: vision signal: Master Control Center is equipped with a CCD camera gun, distribution control The Cloud Terrace, two variable lenses, (two variable lenses can be used for the picture and text transmission), two CCD camera guns were equipped with in each little lattice chamber, wherein one the same with Master Control Center, another tennis partner index glass head (claims A in little lattice chamber, the B rifle), little lattice chamber two-path video signal is chosen wherein by the control extension set and one the tunnel is sent to Master Control Center, after all vision signals of delivering to control center are delivered to modulator respectively and are modulated, become the RF signal, the RF signal output of total n+3 road (n is little lattice number) is mixed into power amplification, becomes cable TV signal and transmits distribution.
B: sound signal: Master Control Center adopts microphone, and little lattice chamber adopts electret microphone (this microphone pickup is highly sensitive, can both clearly be picked up at the sound of the indoor unspecified angle of little lattice) to send into corresponding modulator and carry out modulation treatment through the sound signal after amplifying is the same with vision signal.
Three, the operational processes of televisor video recorder.
Televisor, video recorder adopt the infrared light emission diode to carry out remote control, from the above, all vision signals have become the RF signal, so telerecording is reproduced, document image just easily, operate also very simply, remote signal is to be sent to Master Control Center and each little lattice chamber controller by the remote line that passes through that 8098 mcu programmings produce, and discerns processing by controller.
Four, the control and treatment of The Cloud Terrace, camera lens:
The The Cloud Terrace of Master Control Center and each little lattice chamber, the control of camera lens are carried out and are undertaken by each divisional processing device (control extension set), the divisional processing machine is after receiving the data-signal of data line, compare, provide various control voltages to control after the identification, wherein The Cloud Terrace exchanges control voltage, camera lens employing ± 12V DC voltage with 220V.
One, center divisional processing machine and each little lattice chamber control extension set
After data-signal carries out level conversion through level shifting circuit, be sent to the Data Receiving mouth (10 pin) of 8031 single-chip microcomputers, after carrying out various treatment classifications by single-chip microcomputer, by its 1,2,3, the control level of 4 pin output controls lens, 5,6,7, the control level of the control level 16 pin output control remote signal of 8 pin output control The Cloud Terrace (is used for televisor, the video recorder that has recording and reproducing function), 11, the control remote control of 12 pin output is two players of Master Control Center used (this player is used to play teaching material etc.), 15 pin output control A, the conversion of B two-path video signal.
A remote signal output circuit (seeing accompanying drawing 5)
When 8031 (16) came low level, 9012 plate pipe collector was a high level, and the remote signal of coming from remote line makes two infrared light emission triodes send the remote control infrared ray through 945 triodes simultaneously, and made televisor or video recorder action.
The generation of B, cradle head control voltage (seeing accompanying drawing 6)
Comprehensive indoor universal turning bench, adopt existing off-the-shelf hardware (as PEH30), to this device analysis as can be known, this equipment " on; down; a left side; the right side " control of four kinds of mode of motion, be four control lines that provide by it, a common line, control with 220 volts,, see accompanying drawing 6 so only need provide 220 volts electric getting final product respectively to it, the utility model system adopts power drives type ac solid relay (DP2110) to carry out alternating voltage control, it is compared with traditional relay, and long service life is arranged, and does not have mechanical contact, advantages such as reaction velocity is fast have been eliminated the electric arc interference simultaneously.By 8031 5.～8. the control voltage of pin output through secondary anti-phase after, make the Q001 triode saturated solid-state, relay SSR conducting, and make The Cloud Terrace (RL) connect 220 volts reaches the control to The Cloud Terrace.The generation of C, two variable lenses control voltage:
Two variable lenses control voltage is ± 8V～± 16VDC, the employing ± 12VDC of the utility model system controls (seeing accompanying drawing 7), by 8031 1.～4. any pin of pin export a high level through IC
3After the driving; the base stage of Q102 or Q103 (having only one in synchronization Q102 or Q103 base stage is high level) is high level; Q102 or Q103 conducting; (as the Q102 conducting, then Q103 ends), the Q102 current collection is low level very; the Q115 conducting; A point output+12V controls voltage, and the Q103 base stage is that low level is ended, and the Q110 base stage is a high level; Q110 and Q116 are in cut-off state; when the Q102 base stage is a low level, when the Q103 base stage was high level, then Q115 ended; the Q116 conducting; A point output one 12V control voltage, diode D101; D102 makes Q115 for the protection diode; Q116 can only have one to be in conducting state at synchronization.D, audio signal processing circuit (seeing accompanying drawing 8)
External acoustic pickup is (enlargement factor is by R305, R306 decision) after one-level Q301 amplifies, and delivers to IC6LM386 and carries out power amplification, so that grow Distance Transmission.E, vision signal treatment conversion (seeing accompanying drawing 9)
By the system architecture schematic diagram as can be known, there are A, B two-path video signal in each little lattice chamber, but be sent to just one tunnel (the A road) wherein of Master Control Center, simultaneously, from the practice as can be known, to changing mutually of this two-path video signal, adopt general method just can meet the demands, so in the utility model, adopt electric relay to change mutually.The control signal of being come by 8031 (15) pin is added to the base stage of triode Q401, makes its conducting or by pilot relay J1, and reaches the purpose that A, B two-path video signal change mutually.D401 is the 2V voltage stabilizing diode, and main effect is anti-interference, simultaneously, native system adopts dedicated video cable transmission vision signal, and use the W-300 high-frequency modulator, by the requirement of the attenuation characteristic of cable and modulator, as calculated in the general application places of native system to the incoming video signal level, need not to increase the video amplifier, like this, equipment is reduced, system cost descends, failure rate reduces, and has brought benefit.
So far, the utility model has been done detailed description.
Claims (1)
1. microteaching device, it is characterized in that: by centralized computer (1), little lattice chamber computer (2), explanation and remote control processor (3), center divisional processing machine (4), little lattice chamber control extension set (5), TV are formed with video recording (6), electric platform and camera lens (7) and microphone (8); The serial ports of centralized computer (1) is access to the serial ports of little lattice chamber computer (2) and explanation and remote control processor (3) by RS-232 type grid line; Explanation and remote control processor (3) output serial ports are access to the serial ports of center divisional processing machine (4) and little lattice chamber control extension set (5) respectively; The two-way output of center divisional processing machine (4) is access to TV and video recording (6A) and electric platform and camera lens (7A) respectively; The two-way output of little lattice chamber control extension set (5) is access to TV and video recording (6B) and electric platform and camera lens (7B) respectively; Also be provided with microphone (8A, 8B) input at center divisional processing machine (4) and little lattice chamber control extension set (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97208584 CN2297761Y (en) | 1997-01-21 | 1997-01-21 | Microsquares teaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97208584 CN2297761Y (en) | 1997-01-21 | 1997-01-21 | Microsquares teaching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2297761Y true CN2297761Y (en) | 1998-11-18 |
Family
ID=33927989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97208584 Expired - Fee Related CN2297761Y (en) | 1997-01-21 | 1997-01-21 | Microsquares teaching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2297761Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147436A (en) * | 2018-09-19 | 2019-01-04 | 华南师范大学 | A kind of tiny grid teaching system |
-
1997
- 1997-01-21 CN CN 97208584 patent/CN2297761Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147436A (en) * | 2018-09-19 | 2019-01-04 | 华南师范大学 | A kind of tiny grid teaching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |