CN2777663Y - Multipurpose remote-controlled multimedia teacher pointer - Google Patents
Multipurpose remote-controlled multimedia teacher pointer Download PDFInfo
- Publication number
- CN2777663Y CN2777663Y CN 200420052939 CN200420052939U CN2777663Y CN 2777663 Y CN2777663 Y CN 2777663Y CN 200420052939 CN200420052939 CN 200420052939 CN 200420052939 U CN200420052939 U CN 200420052939U CN 2777663 Y CN2777663 Y CN 2777663Y
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- China
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- remote control
- multimedia
- infrared receiving
- infrared
- remote
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- Expired - Fee Related
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- Input From Keyboards Or The Like (AREA)
Abstract
The utility model discloses a multifunctional remote control multimedia ferule used for controlling multimedia teaching devices, which belongs to the technical field of multimedia teaching devices and provides a multifunctional remote control multimedia ferule capable of being operated at a long distance in a contactless mode. The utility model is characterized in that a remote control emitting device composed of a key-controlled microprocessor and an infrared emitter is composed of an infrared receiving device which is composed of an infrared receiving head and an interface circuit and connected with a teaching multimedia computer. The utility model has the advantages that the service life of batteries can be prolonged by the low power consumption, and the cost is low; an EM78P153 series single-chip computer is adopted, and because the single-chip computer is provided with an internal RC oscillating circuit, a plurality of peripherals can be saved by the internal upper pull function; the infrared receiving unit does not need to be decoded, decoding can be directly carried out by a superior computer program, and thus, the structure becomes particularly simple; the multifunctional remote control multimedia ferule used for controlling multimedia teaching devices can be used for and matched with various multimedia teaching devices.
Description
Technical field
The utility model discloses a kind of remote control multimedia teacher's pointers of using that are used to control multimedia teaching facility more, belong to the multimedia teaching facility technical field.
Background technology
Before the utility model was made, in process was given lessons in existing multimedia teaching, the teacher will constantly pass through keyboard or mouse operation and control teaching courseware, therefore can not leave keyboard or mouse.This gives to give lessons and brings a lot of inconveniences.On the one hand, teacher can not fully show the body language of oneself, makes classroom gas under-activity more; On the other hand, in case teacher has forgotten to change in time courseware content, cause sound to draw asynchronous and the influence effect of teaching.In addition, be subjected to the influence of environment more serious by keyboard or mouse operation and control teaching courseware, particularly old teacher controls and can feel painstaking under the darker situation of light.
Summary of the invention
At above shortcoming, the technical problems to be solved in the utility model provides the remote control multimedia teacher's pointers of using that a kind of noncontact is at a distance controlled more.
Technical characterictic of the present utility model is to have adopted the remote-controlled launcher of being made up of keying microprocessor and infrared transmitter, the receiving trap configuration information telechirics of being made up of with interface circuit infrared receiving terminal that is connected with the teaching multimedia computer has solved the problem that the remote noncontact of teaching multimedia computer is controlled.
Below introduce structure of the present utility model in detail, a kind of many with remote control multimedia teacher's pointer, it is characterized in that the remote-controlled launcher be made up of keying microprocessor and infrared transmitter, the infrared receiving device of being made up of with interface circuit infrared receiving terminal that is connected with the teaching multimedia computer constitutes.Remote-controlled launcher attaches the keying laser head, convenient teaching indication.
During use, infrared receiving device is connected with the teaching multimedia computer, teacher's hand-held remote control emitter is pressed keyboard towards infrared receiving device, just can control the teaching multimedia computer.Also can be by the light laser head, when teacher's pointer indication teaching.
The utility model has the advantages that: 1) low-power consumption.Because microcontroller is in sleep state (1UA) at ordinary times, makes the life-span of battery to prolong greatly.2) cost is low.Microcontroller adopts the EM78P153S series monolithic of Taiwan Yi Long company.Because this single-chip microcomputer has on inner RC oscillatory circuit, the inside and draws function.Can save a lot of peripherals.Saved cost.3) simple in structure.Infrared receiving unit does not need decoding, and decoding is directly undertaken by host computer procedure.Infrared receiving device only needs signal code is delivered to serial ports, does not need decoding chip.It is simple unusually to be that structure becomes.Can be widely used in supporting use in the various multimedia teaching facilities.
Description of drawings
Figure of description 1 is the block diagram of remote-controlled launcher, Figure of description 2 is block diagram of infrared receiving device, Figure of description 3 is circuit diagrams (not comprising keying laser head part) of remote-controlled launcher, and Figure of description 4 is circuit diagrams of infrared receiving device.Among the figure: 1 keyboard, 2 microcontrollers, 3 amplifiers, 4 infrared emission heads, 5 laser heads, 6 infrared receiving terminals, 7 interface circuits.
Embodiment
Embodiment of the present utility model is referring to accompanying drawing, a kind of many with remote control multimedia teacher's pointer, it is characterized in that the remote-controlled launcher formed by keying microprocessor and infrared transmitter, form with interface circuit by infrared receiving terminal be connected with the teaching multimedia computer infraredly constitute by receiving apparatus.
Remote-controlled launcher is connected and composed successively by keyboard (1), microcontroller (2) chip, amplifier (3), infrared emission head (4).Microcontroller chip (U1) adopts the EM78P153S series monolithic of Taiwan Yi Long company; Amplifier (3) adopts transistor to form amplifier circuit; Infrared transmitting tube (D1) connects transistor (Q1) collector and constitutes amplifier load.
The keying laser head connects button and supplying cell constitutes control loop.
Infrared receiving device by infrared receiving terminal (6) connect current supply circuit and data transmission loop be connected with nine kinds of needles D type interface form.Infrared receiving terminal adopts commercially available finished product series, and current supply circuit adopts 5V voltage stabilizing output network.
During present embodiment work, microcontroller is in sleep state at ordinary times, and when a button was pressed, microcontroller just produced pulse train, and this pulse just excites infrared emission head emission infrared signal through after amplifying.This infrared signal is just sent into the RS232 serial ports after receiving through infrared receiving terminal.Subsidiary host computer procedure just takes out signal code from serial ports, then decoding.And then call intrinsic function, reach the purpose of control computer.
Because different buttons can produce different pulses after pressing.Thereby can produce different actions.Behind the electrification reset, controller is in sleep state.Press (for example p60) as a key, chip is waken up and enters interrupt handling routine.Then produce the pulse of various combination at the p5 mouth, because the difference of delay time, can produce multi-form 1,0 combination.And then call different functions and obtain different actions.
Subsidiary laser head mainly is for the ease of the teaching indication.This function does not need microprocessor controls.Directly, control the laser head switch by its power supply of controlled by keyboard.Laser head has finished product market to buy.
Claims (6)
1, a kind of many with remote control multimedia teacher's pointer, it is characterized in that the remote-controlled launcher formed by keying microprocessor and infrared transmitter, the infrared receiving device of being made up of with interface circuit infrared receiving terminal that is connected with the teaching multimedia computer constitutes.
2, according to claim 1 many with remote control multimedia teacher's pointer, it is characterized in that remote-controlled launcher is subsidiary has a keying laser head.
3, according to claim 1 many with remote control multimedia teacher's pointer, it is characterized in that remote-controlled launcher is connected and composed successively by keyboard (1), microcontroller (2) chip, amplifier (3), infrared emission head (4).
4, according to claim 1 many with remote control multimedia teacher's pointer, it is characterized in that infrared receiving device connects current supply circuit and the data transmission loop institute that is connected with nine kinds of needles D type interface by infrared receiving terminal (6) and forms.
5, according to claim 1, the 2 described remote control multimedia teacher's pointers of using, it is characterized in that the keying laser head connects button and supplying cell constitutes control loop more.
6, according to claim 1, the 3 described remote control multimedia teacher's pointers of using, it is characterized in that microcontroller chip (U1) adopts the EM78P153 series monolithic more; Amplifier (3) adopts transistor to form amplifier circuit; Infrared transmitting tube (D1) connects transistor (Q1) collector and constitutes amplifier load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420052939 CN2777663Y (en) | 2004-08-17 | 2004-08-17 | Multipurpose remote-controlled multimedia teacher pointer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420052939 CN2777663Y (en) | 2004-08-17 | 2004-08-17 | Multipurpose remote-controlled multimedia teacher pointer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2777663Y true CN2777663Y (en) | 2006-05-03 |
Family
ID=36745043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420052939 Expired - Fee Related CN2777663Y (en) | 2004-08-17 | 2004-08-17 | Multipurpose remote-controlled multimedia teacher pointer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2777663Y (en) |
-
2004
- 2004-08-17 CN CN 200420052939 patent/CN2777663Y/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 |