CN2488227Y - Signal transmission receiver for multi-person remote controlling system - Google Patents
Signal transmission receiver for multi-person remote controlling system Download PDFInfo
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- CN2488227Y CN2488227Y CN 01226588 CN01226588U CN2488227Y CN 2488227 Y CN2488227 Y CN 2488227Y CN 01226588 CN01226588 CN 01226588 CN 01226588 U CN01226588 U CN 01226588U CN 2488227 Y CN2488227 Y CN 2488227Y
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Abstract
The utility model relates to a signal transmission and receiving device for a multiple people control system. The utility model comprises a keyboard, a controlling circuit, a surge circuit, a plurality of laser LEDs and a plurality of switches; the keyboard is connected with the controlling circuit through a special addressing line; the controlling circuit distinguishes touch status of the keyboard to control the surge circuit to produce infrared ray signal which is corresponding with the electric signal; the controlling circuit controls the surge circuit; the surge circuit transmits the corresponding electric signal to the laser LED; and each switch is connected with the controlling circuit. Therefore the utility model can send different addresses through the different signal sending devices; the utility model can make the signal sending devices be used at the same time; the utility model can distinguish the ID number of each sending device; and the utility model will not produce interference and mixed signal.
Description
The utility model relates to the signal transmitter in a kind of electric communication technique field multiplexing communicator, and the signal that particularly relates to a kind of many people remote control system transmits receiver.This signal transmitter is a kind of similar remote controller, integrated with addressing, specific (ID sign indicating number) mode and control circuit, producing the corresponding signal of telecommunication by the control circuit control oscillation circuit again comes the excitation laser diode to send the signal transmitter of infrared signal, because each reflector all has the address code of before having set (ID CODE), receiving signal when receiver can import via the computer input, behind software decoding, produce different address codes, can recognize the data of each (everyone) reflector to reach computer, comprise answer, the result, achievement etc.It can make the keyboard of each signal transmitter send different particular addresss, and control by the button time and to reduce communication collision probability, and when a plurality of signal transmitters are used at the same time, can reach and tell every reflector identity code, can not produce problems such as confused.
Traditional teaching method is that teacher lectures on the dais mostly, and the student is sitting under the platform and listens to the teacher, and rarer interaction relations between the teachers and students is LIP answer at most.Recently, developed interactive education system in the prior art, the seat that this interactive education system is each student is provided with transmission line, and set a keyboard, the transmission line of each keyboard can be concentrated to be linked to a main frame at last, this main frame then is connected with computer, like this, just can understand the response situation of the student on each seat by computer.
Yet there is following defective in aforementioned existing interactive education system, and it is need be at each seat all online fixedly setting up a keyboard, is example with one 40 people's classroom, and aforesaid structural design will make and spread all over whole classroom as 40 transmission lines such as the cobweb; And each transmission lines and each keyboard all can't move arbitrarily after setting up, and the space utilization in classroom can't be changed; Moreover aforesaid interactive education system only can fixedly set up indoor, and uses in can't imparting knowledge to students out of doors, and it is very inconvenient in the use.
If only keyboard is re-established as the structural form of wireless transmission, though can overcome the problem of stringing, but, tens of wireless transmission keyboards will be at one time, transmission signals simultaneously in the same space, then be easy to cause the phase mutual interference, more other teacher Tan Yaorang can know that each different signal is to have come from that student respectively, therefore, further improved necessity is in addition arranged really.
Main purpose of the present utility model is, solve the existing problem of above-mentioned existing interactive education system, and the signal that a kind of many people remote control system is provided transmits receiver, the keyboard that makes each signal transmitter is to be connected with control circuit in the addressing, specific mode, and make each control circuit can distinguish the state that this keyboard is touched, and and then control oscillation circuit produce the corresponding signal of telecommunication and come the excitation laser diode to send infrared signal, the signal that each signal transmitter is sent can not obscured mutually, disturb, and can reach many people effect of transmission signals simultaneously.
The purpose of this utility model is realized by following technical scheme.Signal according to a kind of many people remote control system that the utility model proposes transmits receiver, comprise keyboard, it is characterized in that it mainly comprises a keyboard, one control circuit, one oscillating circuit, a plurality of laser diodes and a plurality of jumper switch, wherein: this keyboard, be connected with this control circuit with the addressing, specific circuit, the triggering of each singly-bound all produces specific signal and transfers in this control circuit on this keyboard, this control circuit is distinguished the state that this keyboard is touched and controls this oscillating circuit and produce the corresponding signal of telecommunication that this signal of telecommunication excites each laser diode to send infrared signal; This control circuit, its output are connected with the input of oscillating circuit, and this oscillating circuit outputs to laser diode with the corresponding signal of telecommunication; This each jumper switch, it is the specific pin of cross-over connection in control circuit, and is connected with this control circuit, above-mentioned control circuit is according to the setting of this jumper switch, and the form of conversion user hardware enable mode or software activation pattern and Keyboard Control mode.Whereby, can make the keyboard of different signal transmitters send different particular addresss, and when a plurality of signal transmitters are used simultaneously, can not produce problems such as interference.
The purpose of this utility model can also further realize by following technical measures.
The signal of aforesaid many people remote control system transmits receiver, and wherein said control circuit is microprocessor IC.
The signal of aforesaid many people remote control system transmits receiver, and the model of wherein said microprocessor IC is NT6331.
The signal of aforesaid many people remote control system transmits receiver, and wherein said addressing, specific circuit is made up of 16 buttons of keyboard.
The signal of aforesaid many people remote control system transmits receiver, per 4 one group of 16 buttons in the wherein said addressing, specific circuit is connected into together totally four groups, one end of these four groups series connection buttons is connected with 11,12,13,14 pin of the microprocessor IC of described control circuit respectively, and the other end of these four groups series connection buttons is connected with diode D1-D4 respectively.
The signal of aforesaid many people remote control system transmits receiver, wherein said oscillating circuit is made up of crystal oscillator X1 and 2 capacitor C 2, C3, wherein, be connected with this laser diode after the end of this capacitor C 2, C3 is connected, the other end of capacitor C 1, C2 is connected with 8 pin with 7 pin of microprocessor IC respectively with the two ends of crystal oscillator X1.
The signal of aforesaid many people remote control system transmits receiver, and the model of the crystal oscillator X1 of wherein said oscillating circuit is 455KHz.
The signal of aforesaid many people remote control system transmits receiver, and wherein said a plurality of jumper switch are for adopting two jumper switch, and it is connected with 15 pin, 16 pin of microprocessor IC respectively.
The signal of aforesaid many people remote control system transmits receiver, and wherein said addressing, specific circuit and keyboard are connected with microprocessor IC, and wherein the R2 in this circuit is a pull-up resistor, and D1, D2, D3, D4 are isolating diode.
The utility model compared with prior art has tangible advantage and good effect.By above technical scheme as can be known, the signal of many people of the utility model remote control system transmits receiver, this signal transmitter is provided with a keyboard that is connected with control circuit in the addressing, specific mode, make control circuit be distinguished the state that keyboard is touched, and producing the corresponding signal of telecommunication, control oscillation circuit come the excitation laser diode to send infrared signal, make the keyboard of each signal transmitter send different particular addresss, and control by the button time and to reduce communication collision probability, and when a plurality of signal transmitters are used at the same time, can reach and tell every reflector identity code, can not produce problems such as confused.
In sum, the utility model signal transmitter is a kind of device of similar remote controller, it is integrated with addressing, specific (ID sign indicating number) mode and control circuit, producing the corresponding signal of telecommunication by the control circuit control oscillation circuit again comes the excitation laser diode to send the signal transmitter of infrared signal, because each reflector all has the address code of before having set (ID CODE), receiving signal when receiver can import via the computer input, behind software decoding, produce different address codes, can recognize the data of each (everyone) reflector to reach computer, comprise answer, the result, achievement etc.It can effectively solve the existing problem of above-mentioned existing interactive education system, the keyboard that can make each signal transmitter is to be connected with control circuit in the addressing, specific mode, and make each control circuit can distinguish the state that this keyboard is touched, and and then control oscillation circuit produce the corresponding signal of telecommunication and come the excitation laser diode to send infrared signal, the signal that each signal transmitter is sent can not obscured mutually, disturb, and can reach many people effect of transmission signals simultaneously.No matter it structurally or bigger improvement is all arranged on the function, and have than much progress technically, and produced handy and practical effect, and have the enhancement effect really, thereby be suitable for practicality more, really is a new and innovative, progressive, practical new design.
For further understanding technology contents of the present utility model, characteristics and effect, exemplify following preferred embodiment now, and conjunction with figs. is described in detail as follows:
Fig. 1 is the circuit block diagram of circuit structure configuration of the present utility model.
The physical circuit figure of Fig. 2 when to be that the utility model is actual implement.
See also Fig. 1 and shown in Figure 2, the utility model is that a kind of signal of many people remote control system transmits receiver, and this signal transmitter comprises a keyboard 1, two jumper switch 2, a control circuit 3, an oscillating circuit 4 and two laser diodes 5, wherein:
This keyboard 1, be to be connected with control circuit 3 with addressing, specific circuit 11, make the triggering of each singly-bound on the keyboard 1 all produce specific signal and transfer in the control circuit 3, so that this control circuit 3 can be distinguished the state that this keyboard 1 is touched, and then the corresponding signal of telecommunication of control oscillation circuit 4 generations, this signal of telecommunication then excites each laser diode 5 to send infrared signal;
This each jumper switch 2 is cross-over connection specific pins in control circuit 3, so that control circuit 3 can be according to the setting of jumper switch 2, and forms such as conversion user hardware enable mode or software activation pattern and keyboard 1 control mode.
Because this keyboard 1 is to be connected with control circuit 3 with addressing, specific circuit 11, make this control circuit 3 can distinguish the state that keyboard 1 each key is touched, therefore, this control circuit 4 just can be pushed different buttons and control oscillation circuit 4 produces the corresponding signal of telecommunication and comes excitation laser diode 5 to send different infrared signals according to the user, and be singlely to excite signal (ONE SHOTING) (annotate: general infrared signal is when pressing ﹠ hold, the signal major part of sending out is continuous signal, becomes can only send an about 30ms of signal (millisecond) or shorter time by circuit design especially herein at every turn).Other has the key press delays function, avoid the user in the short time running fire, reduce communication collision probability, similarly, each different signal transmitter can be set different codes in control circuit 3, what make each signal transmitter has different identification codes when transmitting infrared signal, do not obscure, disturb so that many people can not produce mutually when using a plurality of signal transmitter simultaneously, and can reach the good effect of many people's while transmission signals.
This control circuit 3 is microprocessor IC, and in the present embodiment, the model of the microprocessor IC of this control circuit 3 is NT6331.
Above-mentioned addressing, specific circuit 11 is made up of 16 buttons of keyboard 1; Connect together totally four groups for per 4 one group of 16 buttons in this addressing, specific circuit 11, one end of four groups of series connection buttons is connected with 11,12,13,14 pin of the microprocessor IC of described control circuit respectively, and the other end of these four groups of series connection keys links to each other with diode D1-D4 respectively;
This oscillating circuit 4 is made up of crystal oscillator X1 and 2 capacitor C 2, C3, and wherein, the end of capacitor C 2, the C3 back that is connected is connected with laser diode 5, and the two ends of the other end of capacitor C 1, C2 and crystal oscillator X1 are connected with 8 pin with 7 of microprocessor IC respectively; In the present embodiment, the model of this crystal oscillator X1 is 455KHz.
These a plurality of jumper switch 2 adopt two jumper switch, and it links to each other with 15,16 pin of this microprocessor IC respectively.
See also addressing, specific circuit 11 shown in Figure 2, above-mentioned and be connected with microprocessor IC with keyboard (containing button 1～No. 16), wherein: resistance R 2 is a pull-up resistor, and D1, D2, D3, D4 are isolating diode.Discerning which button by keyboard 1 scanning imaging system presses, for example make PA0=0, PA1=1, PA2=1 by the program among the microprocessor IC, PA3=1, if there is not button to press, then microprocessor IC from PC0～PC3 mouth read data be 1111, if having button to press on the PA0 alignment, No. 1 key for example, then making the PC0 line is 0, and all the other lines are 1, and promptly can judge key 1 thus is for pressing.By this alignment PA0～PA3, and the ready-made value of alignment PC0～PC3 is called key assignments, and the keyboard handling procedure in the microprocessor can converse the key numbering from the key assignments that is obtained and come.
Now lifting a preferred embodiment applies to many people remote control system with signal transmitter circuit of the present utility model and carries out the application examples of quiz and represent structure of the present utility model and effect thereof.
This many people remote control system has one and includes the main frame of receiving instrument and the signal transmitter of many (deciding according to number of student), wherein, the prior art that this main frame that includes receiving instrument is partly known for the computer realm those of ordinary skill, be existing commercially available product, and be not to be creation emphasis of the present utility model, so repeat no more; This signal transmitter of many, everyone takes a signal transmitter student, and the student number of before the test beginning, controlling oneself by keyboard 1 input, login the identification of test environment as each signal transmitter, teacher can projector present examination question or give an oral account examination question one by one one by one, the student pushes keyboard 1 on the signal transmitter and selects and fill out answer, each signal transmitter just can send a signal to the receiving instrument of main frame according to the data that the student imported, after machine host is handled as calculated, teacher just can know each student's response content in real time, with as reference and correction in the teaching, or can explain repeatedly again, to improve teaching effect at subproblem.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (9)
1, a kind of signal of many people remote control system transmits receiver, comprises keyboard, it is characterized in that it comprises a keyboard, a control circuit, an oscillating circuit, a plurality of laser diode and a plurality of jumper switch, wherein:
This keyboard, be connected with this control circuit with the addressing, specific circuit, the triggering of each singly-bound all produces specific signal and transfers in this control circuit on this keyboard, this control circuit is distinguished the state that this keyboard is touched and controls this oscillating circuit and produce the corresponding signal of telecommunication that this signal of telecommunication excites each laser diode to send infrared signal;
This control circuit, its output is connected with the input of oscillating circuit, and this oscillating circuit outputs to laser diode with the corresponding signal of telecommunication;
This each jumper switch, it is the specific pin of cross-over connection in control circuit, and is connected with this control circuit, above-mentioned control circuit is according to the setting of this jumper switch, and the form of conversion user hardware enable mode or software activation pattern and Keyboard Control mode.
2, the signal of many people remote control system according to claim 1 transmits receiver, it is characterized in that wherein said control circuit is microprocessor IC.
3, the signal of many people remote control system according to claim 2 transmits receiver, and the model that it is characterized in that wherein said microprocessor IC is NT6331.
4, transmit receiver according to the signal of claim 1 or 3 described many people remote control systems, it is characterized in that wherein said addressing, specific circuit is made up of 16 buttons of keyboard.
5, the signal of many people remote control system according to claim 4 transmits receiver, it is characterized in that per 4 group of 16 buttons in the wherein said addressing, specific circuit is connected into together totally four groups, one end of these four groups series connection buttons is connected with 11,12,13,14 pin of the microprocessor IC of described control circuit respectively, and the other end of these four groups series connection buttons is connected with diode D1-D4 respectively.
6, the signal of many people remote control system according to claim 5 transmits receiver, it is characterized in that wherein said oscillating circuit is made up of crystal oscillator X1 and 2 capacitor C 2, C3, wherein, be connected with this laser diode after the end of this capacitor C 2, C3 is connected, the other end of capacitor C 1, C2 is connected with 8 pin with 7 pin of microprocessor IC respectively with the two ends of crystal oscillator X1.
7, the signal of many people remote control system according to claim 6 transmits receiver, and the model that it is characterized in that the crystal oscillator X1 of wherein said oscillating circuit is 455KHz.
8, the signal of many people remote control system according to claim 7 transmits receiver, it is characterized in that wherein said a plurality of jumper switch for adopting two jumper switch, and it is connected with 15 pin, 16 pin of microprocessor IC respectively.
9, the signal of many people remote control system according to claim 8 transmits receiver, it is characterized in that wherein said addressing, specific circuit and keyboard are connected with microprocessor IC, wherein the R2 in this circuit is a pull-up resistor, and D1, D2, D3, D4 are isolating diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01226588 CN2488227Y (en) | 2001-06-08 | 2001-06-08 | Signal transmission receiver for multi-person remote controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01226588 CN2488227Y (en) | 2001-06-08 | 2001-06-08 | Signal transmission receiver for multi-person remote controlling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2488227Y true CN2488227Y (en) | 2002-04-24 |
Family
ID=33642192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01226588 Expired - Fee Related CN2488227Y (en) | 2001-06-08 | 2001-06-08 | Signal transmission receiver for multi-person remote controlling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2488227Y (en) |
-
2001
- 2001-06-08 CN CN 01226588 patent/CN2488227Y/en not_active Expired - Fee Related
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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 |