CN2624310Y - Multifunctional electronic ferule - Google Patents

Abstract

An electronic teaching rod for controlling the screen information is provided, which has a handheld part and a receiving part that comprise a pointer control module, a modulation module, a strong red light emitter, a storage module, a signal mixer, a pointer control receiving module, an audio receiving module, and an image control interface, etc. The handheld part transfers the pointer control information to the host through a wireless communication mode; the information storage module sends the data to the host through a USB interface; the image module is respectively connected with the handheld part or receiving part for shooting the static pictures or recording the dynamic images. The utility model is able to remote control the host pointer without the directivity without influences to the functions of former mouse, and is in particular able to display the actual matter for teaching on the projection screen through a video mode.

Description

The multifunction electronic teacher's pointer

Affiliated technical field

The utility model relate to a kind of can radio mark, the remote-controlling electronic device of control screen message, especially can carry out in good time electrons transmitted teacher's pointer to file, image.

Background technology

Along with the fast development of information society, computing machine has been widely used in every field, multimedia teaching with directly perceived, easy-to-understand, contain much information and widespread use in education sector, improved quality of instruction, promoted student's learning interest.But in the daily teaching practice, the teacher only is confined on the dais the control of multimedia computer, and existence can not arbitrarily be moved, underaction, and drawback such as the transfer ratio of courseware is more single influences to a certain extent and has restricted effectively carrying out of teaching.At present, known electronic teacher pointer is made up of strong red light device and power supply, the screen message usefulness that in multimedia teaching, can only make marks, and really powerless for the control of screen message.

Summary of the invention

For solving problem such as control inconvenience, transmission underaction in the multimedia teaching process, the utility model provides a kind of control and multifunction electronic teacher's pointer that is transmitted in one of collecting, this multifunction electronic teacher's pointer not only can make the person of giving lessons break away from the restriction at dais but also can carry out in good time demonstration control to image, file, can also make teaching more vivid, be rich in appeal, teaching efficiency increases significantly.

The solution that the utility model is taked is: adopt controlled in wireless and wireless transmission to match, design with way of hardware and software combination.It constitutes hand-held by red torch, pointer control module, memory module, camera part and radio microphone etc. and receives the two large divisions.

Be provided with pointer control module, signal modulation module, memory module, red torch etc. in the portion of the handle.The pointer control signal that the pointer control module is sent is controlled the receiving unit reception and is demodulated digitally encoded signal by pointer at last through modulation of signal modulation module and wireless transmit, transfers to main frame by USB interface, the motion of main control system pointer.The wireless audio signal that wireless microphone sends is received by the audio interface receiving portions and demodulates sound signal, transfers to main frame by the MIC interface.The pointer control module mainly is made up of control signal acquisition cuicuit, control signal coding circuit, and the control module in the portion of the handle is mainly finished the similar functions of 3D mouse, and the multimedia courseware that is moving is controlled page turning by control module.The signal modulation module mainly is made up of signal amplification, modulation, radiating circuit, is mainly used in the wireless transmit of control signal.Information storage module mainly contains interface circuit, storage chip is formed, and multimedia courseware is stored with it, uses in good time.

Two kinds of transmission modes are adopted in the transmission of portion of the handle signal: the pointer control section in the control module adopts the modulation system wireless transmission; Storage area, image partly adopt USB interface and compunication.

Pointer control section in the pointer control module mainly is responsible for the motion of computer pointer, the control signal that spreads out of on universal wheel, the operating key is carried out numerical coding by the coding circuit in the pointer control module, digital data transmission behind the coding is to the signal modulation module, and the modulator in the signal modulation module adopts the FM mode that the digital signal of coding is outwards launched.Storage area adopts the storage chip of 128M to be used for carrying of data such as courseware commonly used, image, and it is independent of portion of the handle inside, links to each other with main frame by USB interface, with image part, the shared USB interface of control section.Image partly is a removable part, and the image part can be carried out the shooting of image with docking of portion of the handle, and portion of the handle provides working power for shooting, and the image of shooting is stored in the storer of portion of the handle.When USB interface linked to each other with main frame, the portion of the handle power supply charged by USB+5V, and charging current is 300mA.Power supply provides simultaneously+and 3V is used for red torch work.

Be provided with pointer control receiver module, image control interface, audio frequency receiver module and host interface etc. in the receiving unit.Pointer control receiver module receives from the wireless signal of portion of the handle and decodes control signal; The image control interface partly connects with image and is used for instant image transmission; The wireless audio signal that wireless microphone sends is received by the audio frequency receiver module and demodulates sound signal, transfers to main frame by the MIC interface; Interface circuit is used for connecting of receiving unit and main frame.

The beneficial effects of the utility model are: adopted the control transmission mode of full Wireless, used more convenient flexible.Adopt the USB serial line interface to support Hot insertion hot swapping, support various operating systems fully.Pointer control does not influence the work of main frame mouse, and can far distance controlled, realizes man-machine separation in the teaching fully, has the software extensions function, can expand the control corresponding function by revising software.Laser instrument uses as electronic teacher pointer fully.The storage of image and the storage of portion of the handle are shared, and have expanded the space of image store.Owing to adopted dynamic shooting, the material object of using in the teaching can be presented in face of the student really.Regular meeting uses public address equipment in the teaching, and the multifunction electronic teacher's pointer fills part and utilized the multimedia function on the active computer to add wireless chest wheat, has well solved on-the-spot public address.The utility model is easy to use, extensively is adapted in the shooting, teaching of storage, the image of data the straighforward operation to multimedia presentation.

Description of drawings:

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is that the utility model portion of the handle system constitutes signal flow graph;

Fig. 2 is that the utility model receiving unit system constitutes signal flow graph;

Fig. 3 is the utility model pointer control module circuit theory diagrams;

Fig. 4 is the utility model signal modulation module circuit theory diagrams;

Fig. 5 is the utility model receiver module circuit theory diagrams;

Embodiment:

Referring to Fig. 1, its portion of the handle is made up of USB1 interface 1, pointer control module 2, signal modulation module 3, red torch 4, memory module 5, power unit 7, image part 6, and external form can be handle shape.Being provided with red torch in portion of the handle is a simple electronic teacher pointer, and memory module is used for the storage of active file, multimedia courseware.Control signal corresponding is at first carried out numerical coding by pointer control module 2, and the digital data transmission behind the coding is to signal modulation module 3, and the mode that adopts frequency modulation in modulation module is with digital signal modulation and emission.Memory module 5 links to each other with main frame by USB1 interface 1, and file, courseware just are stored in here.Image part 6 picture shot data also are stored in the memory module 5.Image part 6 is shared separable, built-up sections of portion of the handle and receiving unit, and it mainly finishes the work of two aspects: be connected with receiving unit on the one hand and record the function that dynamic image is realized video presenter; Be connected with portion of the handle on the other hand and take static images.The digital photograph of taking is stored in the memory module 5 and transfers to main frame by USB1 interface 1.The voltage of power unit 7 is 4.8V, and the operating voltage of portion of the handle is provided.When the USB1 interface linked to each other with main frame, the portion of the handle power supply was by main frame USB interface+5V charging, and charging current is 300mA.

Referring to Fig. 2, its receiving unit of the utility model is made up of signal mixer 8, USB2 interface 9, audio interface 10, pointer control receiver module 11, audio frequency receiver module 12, image control interface 13, and external form can be designed to desk-top conference microphone pattern.Be provided with independently wireless microphone receiver module in receiving unit, it doesn't matter for the circuit of this part and the circuit of other module, effectively prevents signal cross-talk.Image part 6 is connected the back and forms simple and easy video presenter and record dynamic signal of video signal with image control interface 13, the image data signal of recording transfers to main frame through signal mixer 8, USB2 interface 9.Pointer control receiver module 11 receives the wireless frequency modulation signal that sends from signal modulation module 3 in the portion of the handle, the data demodulation circuit demodulation control signal corresponding in receiver module 11.

Concrete pointer is controlled, receiving circuit is as follows:

Referring to Fig. 3, the pointer control module mainly is responsible for the direction of motion of computer pointer and the basic function of finishing mouse, and A181048D is a slice numerical coding chip, and X1 and IC1 internal circuit are formed clock circuit, switching tube Q1, Q2 are by SWL, SWR control, and SWL, SWR are function control switch.Resistance R 4, R6 are Q1, Q2 collector current-limiting resistance, and DHY, DFY, DZY are infrared light-emitting diodes, and HY, FY, ZY are the infrared bidirectional reception diodes, and power supply is imported IC1 operating voltage is provided after C1, C2, C4, D1 filtering.IC1 is clock signal and data-signal respectively.The control signal coding of this circuit is divided into two parts: a part is that HY, ZY, FY receive the infrared signal that is sent by DHY, DFY, DZY, input to the 6. 7. 8. 9. pin of IC1, carry out digital coding through IC1 in-line coding circuit, data-signal behind the coding and clock signal are exported by IC1 pin.The break-make of another part SWL, SWR function control switch control triode Q1, Q2, the 10. of IC1 is controlled by triode Q1, Q2, carries out digital coding by IC1 in-line coding circuit equally, and data-signal behind the coding and clock signal are exported by IC1 pin.The coded signal of output inputs to modulating part.

Referring to Fig. 4, data-signal after the modulation module of portion of the handle is encoded control signal and clock signal are modulated on the stable frequency launches.C15, C6 power filtering capacitor, Q3, Q4 form self-maintained circuit, and X2, X3 provide stable oscillation frequency, and data-signal and clock signal that C19, L1 will form after radiating circuit will be modulated are outwards launched.Adopt the double frequency mode for the modulation of stabilization signal, frequency-selective switch K1 selects the frequency of modulation, and is noiseless when guaranteeing to use.Data-signal FA, FB input is outwards launched by the ring Shape antenna that C19, L1 form after R14, R13 modulate to triode Q1, Q2, Q5.

Referring to Fig. 5 receiving unit.MC3361 is frequency modulation, amplitude modulation receiving chip, X4, X5, C25, C26, L5 and MC3361 1. 2. pin form oscillatory circuit, L3, C24, C22, C23 form receiving circuit, the inner amplification of L3, C24, C22, C23 and MC3361 , detecting circuit are formed receiving circuit, 4. the digitally encoded signal that demodulates exports the EM78P156EP chip to by the of MC3361 and amplifies shaping, inputs to main frame by 10. pin at last.Triode Q6 and light emitting diode LD1 are the signal indicating sections.The X1 crystal oscillator provides EM78P156EP clock frequency, and R1 is the current-limiting resistance of power supply, and it provides operating voltage for the pin of EM78P156EP pin, MC3361CP.

When operating key SWL presses, A181048D encodes the pulse signal of receiving, digital signal behind the coding is by the input modulation circuit of A181048D, modulation circuit is modulated the clock signal and the data-signal of output (frequency of modulation is by X1, X2 decision) respectively, and L outwards launches by ring Shape antenna.The ring Shape antenna L of receiving unit is the FM signal that receives, amplifies after the demodulation by pin outputting data signals by MC3361CP, and 4. pin clock signal, input EM78P156EP amplifies shaping, is transferred to main frame by 10. and finishes corresponding instruction.

Claims (7)

1. the electronic teacher pointer of radio mark control screen message, it comprises portion of the handle and receiving unit, it is characterized in that: portion of the handle is made up of pointer control module, signal modulation module, red torch, memory module, power supply, image etc.; Receiving unit is made up of signal mixer, pointer control receiver module, audio frequency receiver module, image control interface etc.; The pointer control modulation signal that transmitter module sends is received by pointer control receiver module, and is sent to the control of main frame realization to main frame by USB; Image partly is one can take the unit that can record; Memory module can be connected the transmission data by the USB interface on the portion of the handle with main frame; Audio frequency receiver module in the receiving unit receives the wireless microphone signal; Power supply provides 4.8V operating voltage for each module, and charges by USB interface.

2. multifunction electronic teacher's pointer according to claim 1 is characterized in that: image unit be one can with portion of the handle and the shared built-up section of receiving unit, it mainly finishes the work of two aspects: record on the one hand dynamic image; Static images is taken in the aspect in addition.

3. multifunction electronic teacher's pointer according to claim 1 is characterized in that: the data-signal of image can be stored in the memory module of portion of the handle, is connected with main frame by USB interface and transmits data.

4. multifunction electronic teacher's pointer according to claim 1 is characterized in that: be provided with independently wireless microphone receiver module in receiving unit, it doesn't matter for the circuit of this part and the circuit of other module, effectively prevents signal cross-talk.

5. multifunction electronic teacher's pointer according to claim 1 is characterized in that: the image data signal that video presenter is recorded inputs to the main frame USB interface through signal mixer, with the shared USB interface of pointer control signal after the demodulation of pointer control receiver module.

6. multifunction electronic teacher's pointer according to claim 1 is characterized in that: the portion of the handle dispense with outer connecting power, and by USB mouth power source charges.

7. multifunction electronic teacher's pointer according to claim 1 is characterized in that: the double frequency mode is adopted in modulation, and frequency-selective switch is selected the frequency of modulation, and is noiseless when guaranteeing to use; MC3361 is that frequency modulation, amplitude modulation receiving chip adopt the double frequency mode to receive equally in the receiving circuit, and frequency-selective switch comes the selective reception frequency.

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