CN2655341Y - Network computer with switching circuit - Google Patents
Network computer with switching circuit Download PDFInfo
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- CN2655341Y CN2655341Y CN 200320102959 CN200320102959U CN2655341Y CN 2655341 Y CN2655341 Y CN 2655341Y CN 200320102959 CN200320102959 CN 200320102959 CN 200320102959 U CN200320102959 U CN 200320102959U CN 2655341 Y CN2655341 Y CN 2655341Y
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- commutation circuit
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- keyboard
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Abstract
A net computer with a shifting circuit is a special used net computer for education which can treat the multi-media timely. The utility model adds a special used transmission wire on the common used net computer, comprising a shifting circuit which shifts between a special used transmission wire or a net wire, a common used net computer main board, an outset (a screen, an ear microphone, a keyboard and a mouse) for controlling information of a video, an acoustic frequency, the keyboard, the mouse and the control and the like. The utility model can make the common used net computer with limited ability when operating the multi-media treating ability have the timely multi-media treating ability, more particularly suitable for the education field application with a plurality of multi-media data.
Description
Technical field
The utility model relates to a kind of network computer (NC:Net Computer), specifically relates to a kind of network computer that is specifically designed to the energy high efficiency of transmission real-time multimedia information of education sector.
Background technology
At present, known network computer (NC) is made up of mainboard, cabinet, keyboard, mouse, display, cancelled the parts such as floppy drive, CD-ROM drive and hard disk of conventional personal computer (PC), the characteristics of its structural system have determined it to have low price, easy performance is easy to safeguard, upgrades.Need simultaneously the support of network because of its CPU processing power finite sum, make its application be subjected to a certain degree restriction, especially in transmission with when handling a large amount of multimedia real time datas, the bandwidth of network and the processing power of network computer can not be satisfied the demand.In education sector, a lot of coursewares all contain the big multimedia image information of data volume, as MPG1, MPG2, FLASH etc., so general network computer is used for education sector tangible technological deficiency are just arranged.
The utility model content
A kind of network computer with commutation circuit that the utility model provides at above-mentioned defective has just solved the deficiency of universal network computing machine satisfactoryly, and the advantage that the low-cost and easy-to of network computer is safeguarded can play one's part to the full in fields such as education.
The technical solution of the utility model is:
A kind of network computer with commutation circuit, this network computer includes mainboard, and this network computer also includes commutation circuit, and this commutation circuit links to each other with described mainboard, wherein:
This commutation circuit includes microcontroller and some groups of signal damping commutation circuits, this signal damping commutation circuit is made up of signal buffer that is linked in sequence and signal switching circuit, this microcontroller links to each other with signal switching circuit, this signal switching circuit links to each other with local peripheral hardware, and this signal buffer links to each other with the far-end peripheral hardware.
A kind of network computer with commutation circuit, this commutation circuit also includes the communication module of microcontroller, and described microcontroller carries out communication by this communication module and far-end computer.
A kind of network computer with commutation circuit, the communication module of described microcontroller are the special-purpose communication module of described microcontroller inside.
A kind of network computer with commutation circuit, described signal damping commutation circuit comprise a kind of in following several circuit or several:
Vision signal buffering commutation circuit, it is made up of vision signal buffering (amplification) device and the vision signal commutation circuit that are linked in sequence, and this vision signal commutation circuit links to each other with local display, and this signal buffer links to each other with the distal displayed device;
Mouse signal buffering commutation circuit, it is made up of mouse signal impact damper that is linked in sequence and mouse signal commutation circuit, and this mouse signal commutation circuit links to each other with local mouse, and this mouse signal impact damper links to each other with the far-end mouse;
Keyboard signal buffering commutation circuit, it is made up of keyboard signal impact damper that is linked in sequence and keyboard signal commutation circuit, and this keyboard signal commutation circuit links to each other with local keyboard, and this keyboard signal impact damper links to each other with remote keyboard;
The audio signal buffer commutation circuit, it is made up of the audio signal buffer that is linked in sequence (amplification) device and sound signal commutation circuit, and this sound signal commutation circuit links to each other with local stereo set, and this audio signal buffer device links to each other with the far-end stereo set.
A kind of network computer with commutation circuit, described signal switching circuit are MOS analog switch or low-voltage midget relay.
Advantage of the present utility model is, has strengthened the ability of transmitting and handle a large amount of multimedia real time datas, as MPG1, MPG2, FLASH etc., has increased the availability of network computer in education sector; And have low price, be easy to safeguard, upgrading is easy to performance.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the system architecture synoptic diagram that the utility model embodiment uses;
Fig. 3 is the theory diagram of commutation circuit among the utility model embodiment;
Fig. 4 is a communication control circuit schematic diagram among the utility model embodiment;
Fig. 5 is the utility model embodiment sound intermediate frequency signal amplification circuit schematic diagram;
Fig. 6 is a vision signal amplifying circuit schematic diagram among the utility model embodiment;
Fig. 7 is a commutation circuit schematic diagram among the utility model embodiment.
[figure number explanation]
1, display 2, dedicated transmission
3, commutation circuit 4, mouse
5, keyboard 6, netting twine
7, local stereo set
8, the interconnection between commutation circuit and the network computer,
9, universal network computer motherboard 10, teacher computer
11,1# student's machine 12,2# student's machine
13,3# student's machine 14, N# student's machine
15, communication and control circuit 16, vision signal buffering (amplification) device,
17, vision signal commutation circuit 18, mouse signal impact damper,
19, mouse signal commutation circuit 20, keyboard signal impact damper,
21, keyboard signal commutation circuit 22, audio frequency amplify (buffering) device
23, sound signal commutation circuit 24, the order wire that links to each other with dedicated transmission
25, the control line of control of video commutation circuit switching state
26, the control line of control audio commutation circuit switching state
27, the control line of supervisory keyboard commutation circuit switching state
28, the control line of mouse beacon commutation circuit switching state
29, the communication module of microcontroller 30, microcontroller
31, input signal 32, output signal
33, control signal
Embodiment
For the clear structure of the present utility model of your auditor is formed and the overall operation mode, cooperate graphic being described as follows now:
As Fig. 1, shown in Figure 3, the utility model embodiment is a kind of network computer with commutation circuit (3), its computing machine includes universal network computer motherboard (9), commutation circuit (3), and this commutation circuit (3) links to each other with described network computer mainboard (9), wherein:
Commutation circuit (3) includes microcontroller (29) and four groups of signal damping commutation circuits, that is:
Vision signal buffering commutation circuit, it is made up of vision signal buffering (amplification) device (16) and the vision signal commutation circuit (17) that are linked in sequence, this vision signal commutation circuit (17) links to each other with local display (1), and display (1) interface of this signal damping (amplification) device (16) and far-end links to each other.This vision signal buffering (amplification) device (16) is taked the generic video signal amplifier, and as LT1259 etc., its typical principle as shown in Figure 6; And vision signal commutation circuit (17) and following mouse signal commutation circuit (19), keyboard signal commutation circuit (21), sound signal commutation circuit (23) can adopt MOS analog switch such as 74LS4053 or low-voltage midget relay, make it can under the effect of microcontroller (29), control the Kai Heguan of current demand signal buffering commutation circuit, its typical schematic diagram as shown in Figure 7, can the input signal (31) of the level of the output control signal (33) of microcontroller (29) height may command signal switching circuit output signal (32).
Mouse signal buffering commutation circuit, it is made up of mouse signal impact damper (18) that is linked in sequence and mouse signal commutation circuit (19), this mouse signal commutation circuit (19) links to each other with local mouse (4), and this mouse signal impact damper (18) links to each other with the far-end mouse; This mouse signal impact damper (18) and following keyboard signal impact damper (20) adopt with door or or door as 74F125 etc., its mouse signal commutation circuit (19) is with aforementioned.
Keyboard signal buffering commutation circuit, it is made up of keyboard signal impact damper (20) that is linked in sequence and keyboard signal commutation circuit (21), this keyboard signal commutation circuit (21) links to each other with local keyboard (5), and this keyboard signal impact damper (20) links to each other with remote keyboard.For the buffering of the keyboard (5) and the mouse (4) of transmission of digital signals, all be adopt with door or or door as 74F125 etc.; Its keyboard signal commutation circuit (21) is with aforementioned.
The audio signal buffer commutation circuit, it is made up of the audio signal buffer that is linked in sequence (amplification) device (22) and sound signal commutation circuit (23), this sound signal commutation circuit (23) links to each other with local stereo set (7), and this audio signal buffer device (22) links to each other with the far-end stereo set.For the amplifier of transmitting audio signal, can take universal audio signal amplifier such as LM386, LM5532, TED2025 etc., its typical principle is as shown in Figure 5; Its sound signal commutation circuit (23) is with aforementioned.
This commutation circuit (3) also includes the communication module (30) of microcontroller (29), and microcontroller (29) carries out communication by this communication module (30) and far-end computer.This microcontroller (29) can be 8,16 or 32 8-digit microcontrollers.The communication module of microcontroller (29) can be the inner special-purpose communication module of described microcontroller (29), also can be the functional module with communication function with software simulation.The course of work is: the communication module (30) of microcontroller (29) by microcontroller takes out control signal (33) and with its decoding from the order wire (24) that links to each other with dedicated transmission, according to the order request of control signal (33), respectively four groups of control lines (25), (26), (27), (28) are set to high level or low level.Its typical theory diagram as shown in Figure 4.
Described present embodiment is carried out networking, and as shown in Figure 2, the course of work and exemplary functions that this kind has the network computer of commutation circuit (3) are described below:
1, the teacher is to student's broadcast capability
The teacher uses teacher computer (10) that command signal is added on the logical line (2) of dedicated transmissions, by communication and control circuit (15) (it includes the communication module (30) of microprocessor (29) and microprocessor), make vision signal commutation circuit (17), the video and audio signal that sound signal commutation circuit (23) is switched oneself outputs on the dedicated transmission (2), simultaneously, student's machine (11,12,13,14) vision signal commutation circuit (17), the video and audio signal that sound signal commutation circuit (23) is switched the teacher that dedicated transmission (2) is upward transmitted is directly switch on student's the display (1) and local stereo set (7), finishes the broadcast capability of teacher to the student.
2, the teacher is to student's monitoring function
The teacher uses teacher computer (10) that command signal is added on the dedicated transmission (2), by communication and control circuit (15), student's end receives orders the back by communication and control circuit (15) control of video signal switching circuit (17), sound signal commutation circuit (23) is switched, the video and audio signal of this machine is added on the dedicated transmission (2), teacher's end is then under the control of communication and control circuit (15), by vision signal commutation circuit (17), the video and audio signal that sound signal commutation circuit (23) is switched the student on the dedicated transmission (2) switches on the display (1) and local stereo set (7) of oneself, thereby can realize the monitoring of teacher to the student.
3, the interactive operation of keyboard and mouse (control the other side's keyboard and mouse)
The teacher uses teacher computer (10) that command signal is added on the dedicated transmission (2), switch on the dedicated transmission (2) by (19), (21) by communication and control circuit (15) mouse (4) and keyboard (5) signal oneself, simultaneously the communication of student's end and control circuit (15) mouse beacon signal switching circuit (19), keyboard signal commutation circuit (21) keyboard (5) mouse (4) signal that dedicated transmission (2) is gone up the teacher switches on student's the mainboard (9) of universal network computing machine, finishes teacher's Long-distance Control student's main frame.Vice versa.
Can realize the mutual of Faculty and Students as mentioned above, and this be not variant alternately because of the in progress content of teacher or student's main frame.As, the teacher can not be directly switch to the DVD substance film that own main frame is play in all students or some students' the display (1) and local stereo set (7) by dedicated transmission channel and commutation circuit (3) with changing, makes the student can see the content that the teacher plays in real time; The teacher also can maybe directly switch to the picture and the sound of all students' main frame some students on teacher's oneself the display by dedicated transmission channel and commutation circuit (3) in turn, make the teacher can see in real time the student situation; Certainly under the effect of transmission channel that newly adds and commutation circuit (3), also certain student's picture and sound can be switched on all this machines of student; Can allow the teacher control student's mouse (4) and keyboard (5) or allow the student control teacher's mouse (4) and keyboard (5).
Claims (5)
1, a kind of network computer with commutation circuit, this network computer includes mainboard, it is characterized in that, and this network computer also includes commutation circuit, and this commutation circuit links to each other with described mainboard, wherein:
This commutation circuit includes microcontroller and some groups of signal damping commutation circuits, this signal damping commutation circuit is made up of signal buffer that is linked in sequence and signal switching circuit, this microcontroller links to each other with signal switching circuit, this signal switching circuit links to each other with local peripheral hardware, and this signal buffer links to each other with the far-end peripheral hardware.
2, a kind of network computer with commutation circuit as claimed in claim 1 is characterized in that this commutation circuit also includes the communication module of microcontroller, and described microcontroller carries out communication by this communication module and far-end computer.
3, a kind of network computer with commutation circuit as claimed in claim 2 is characterized in that, the communication module of described microcontroller is the special-purpose communication module of described microcontroller inside.
4, a kind of network computer with commutation circuit as claimed in claim 1 is characterized in that, described signal damping commutation circuit comprises a kind of in following several circuit or several:
Vision signal buffering commutation circuit, it is made up of vision signal buffer amplifier that is linked in sequence and vision signal commutation circuit, and this vision signal commutation circuit links to each other with local display, and this signal buffer links to each other with the distal displayed device;
Mouse signal buffering commutation circuit, it is made up of mouse signal impact damper that is linked in sequence and mouse signal commutation circuit, and this mouse signal commutation circuit links to each other with local mouse, and this mouse signal impact damper links to each other with the far-end mouse;
Keyboard signal buffering commutation circuit, it is made up of keyboard signal impact damper that is linked in sequence and keyboard signal commutation circuit, and this keyboard signal commutation circuit links to each other with local keyboard, and this keyboard signal impact damper links to each other with remote keyboard;
The audio signal buffer commutation circuit, it is made up of audio signal buffer amplifier that is linked in sequence and sound signal commutation circuit, and this sound signal commutation circuit links to each other with local stereo set, and this audio signal buffer device links to each other with the far-end stereo set.
5, a kind of network computer with commutation circuit as claimed in claim 1 is characterized in that, described signal switching circuit is MOS analog switch or low-voltage midget relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320102959 CN2655341Y (en) | 2003-11-11 | 2003-11-11 | Network computer with switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320102959 CN2655341Y (en) | 2003-11-11 | 2003-11-11 | Network computer with switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2655341Y true CN2655341Y (en) | 2004-11-10 |
Family
ID=34340334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320102959 Expired - Lifetime CN2655341Y (en) | 2003-11-11 | 2003-11-11 | Network computer with switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2655341Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765838B (en) * | 2007-07-25 | 2012-12-19 | 惠普开发有限公司 | Systems and methods for improving performance of a routable structure |
-
2003
- 2003-11-11 CN CN 200320102959 patent/CN2655341Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765838B (en) * | 2007-07-25 | 2012-12-19 | 惠普开发有限公司 | Systems and methods for improving performance of a routable structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YU HAIDONG Free format text: FORMER OWNER: YU CHUN Effective date: 20061117 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20061117 Address after: 100101 Beijing city Chaoyang District Anxiang No. 4 South Lane Building 4 No. 101 Patentee after: Yu Haidong Address before: 277700 No. 70, 6 Cultural Road, Cangshan County, Shandong Province Patentee before: Yu Chun |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131111 Granted publication date: 20041110 |