CN104808801A - Novel wireless demonstrator - Google Patents

Abstract

The invention discloses a novel wireless demonstrator, which includes a handheld terminal and a computer receiving end plugged into a computer. The handheld terminal includes a housing, a power supply circuit arranged in the housing, a processor, and the processor. A connected audio signal processor, a 2.4G wireless transmitter connected to the processor and a control input device connected to the processor, and a The connected sound input device, the computer receiving end includes a microcontroller, a 2.4G wireless receiver connected with the microcontroller and a USB bus interface connected with the microcontroller. The present invention has a simple structure and is convenient to use. It can realize wireless audio transmission during use, and can solve the disadvantage that the speaker cannot leave the podium. It can allow the speaker on the podium to simultaneously complete the recording of PPT and sound, which is convenient to use and has complete functions. , Good stability, strong applicability and good practicability.

Description

New Wireless Presenter

technical field

The invention belongs to the technical field of information communication products, and in particular relates to a novel wireless demonstrator.

Background technique

The wireless presentation device is a combination of wireless technology and computer USB technology to control the computer to turn pages, which is functionally equivalent to a computer remote control. Products usually contain a transmitter and a receiver. The receiver is similar to a U disk, when plugged into the USB port of the computer, the computer will automatically install the corresponding driver. At this time, press the button on the transmitter to realize wireless control of the computer.

As the teaching of multimedia technology becomes more and more popular, the status of wireless demonstrator (laser pointer) is becoming more and more important. It has become an indispensable special tool for teachers to teach and make reports. It can liberate teachers from the computer , In every corner of the classroom, you can turn the pages of the courseware. At the same time, the laser pointer also has the pointer function, and the laser can be used to point on the large screen.

The wireless laser pointer can completely liberate you from the side of the computer, and the user does not have to stay by the side of the computer all the time. When you need to make notes on the key content during e-learning, presentations and reports, you only need to press lightly, and the red laser point can be mapped on the screen of the document content you need to emphasize; When explaining the key content for the first time, it is hard to "point the finger" to the audience or go to the projection screen to "intimate contact" with them; at the same time, you can turn the electronic document to the page you want to give a speech by simply clicking the relevant function button ;No matter where you are in the classroom, the corner of the lecture hall, or the back of the meeting room for live interaction with the audience, just one touch, and the picture you want will automatically appear on the screen.

At present, the main function of the wireless presenter on the market is the third-generation wireless presenter that can remotely control the computer to turn the PPT page, full screen and other operating functions. Although the current products bring a lot of convenience to the speaker, the presenter not only needs to demonstrate the document, but also needs to explain it. In order for the audience to hear clearly, the presenter needs to raise his voice. The traditional solution is to connect the microphone to the microphone interface of the computer, the presenter speaks into the microphone, and sends out a loud sound through the computer and speakers, which makes it impossible for the speaker to leave the podium and the effect of the speech is limited. Or presenters bring their own portable loudspeaker, which increases their mobility. But it brings a burden to the demo personnel, and the sound effect is relatively poor.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a new wireless demonstrator with simple structure, convenient use and complete functions.

The technical solution to realize the object of the present invention is: a new type of wireless demonstrator, including a handheld terminal and a computer receiving end plugged into a computer, the handheld terminal includes a housing and a power supply circuit, a processor, a an audio signal processor connected to the processor, a 2.4G wireless transmitter connected to the processor and a control input device connected to the processor; The sound input device connected with the audio signal processor, the receiving end of the computer includes a microcontroller, a 2.4G wireless receiver connected with the microcontroller and a USB bus interface connected with the microcontroller.

The handheld terminal also includes a laser port arranged at the front end of the housing, and a laser generator connected to the power supply circuit is also provided in the housing.

The control input device is a control input button, and the control input button includes a voice on/off button, a playback stop button, a laser pointer on button, a page up button, a page down button, and a volume adjustment button, and the voice on/off button The off button and the stop playing button are arranged on the top of the control input button, the stop playing button, the laser pointer on button, the page turning button and the page turning button are arranged at the middle part of the control input button, and the volume The adjustment button is arranged at the lower part of the control input button.

The sound input device is a head-mounted or lavalier microphone.

The receiving end of the computer is a USB receiver.

The power supply circuit includes a charger with a main chip model of TP4054 and a DC converter with a main chip model of NCP1402 connected to the charger with a core number of TP4054.

The main chip model of the audio signal processor is TLV320AIC23 chip.

The main chip models of the processor and microcontroller are both STM32F405RGT chips, and the main chip models of the 2.4G wireless transmitter and 2.4G wireless receiver are 24L01 chips.

The present invention has positive effects: the present invention has a simple structure and is convenient to use, and it can realize audio wireless transmission during use, thereby solving the disadvantage that the lecturer cannot leave the podium, and it can allow the lecturer on the podium to complete PPT and PPT synchronously. Sound recording is easy to use and has complete functions, good stability in use, strong applicability, and good practicability.

Description of drawings

In order to make the content of the present invention more easily understood, the present invention will be described in further detail below according to specific embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is a block diagram of the present invention;

Fig. 2 is the specific circuit diagram of power supply circuit in Fig. 1;

Fig. 3 is the concrete circuit diagram of audio signal processor in Fig. 1;

Fig. 4 is the concrete circuit diagram of processor in Fig. 1;

Fig. 5 is the concrete circuit diagram of 2.4G wireless transmitter or 2.4G wireless receiver in Fig. 1;

Fig. 6 is the concrete circuit diagram of laser generator in Fig. 1;

FIG. 7 is a specific circuit diagram of the microprocessor in FIG. 1 .

Detailed ways

(Example 1)

Fig. 1 to Fig. 7 has shown a kind of embodiment of the present invention, and wherein Fig. 1 is the structural block diagram of the present invention; Fig. 2 is the concrete circuit diagram of the power supply circuit in Fig. 1; Fig. 3 is the concrete audio signal processor in Fig. 1 Circuit diagram; Fig. 4 is the concrete circuit diagram of processor in Fig. 1; Fig. 5 is the concrete circuit diagram of 2.4G wireless transmitter or 2.4G wireless receiver in Fig. 1; Fig. 6 is the concrete circuit diagram of laser generator in Fig. 1; Fig. 7 It is the concrete circuit diagram of the microprocessor in Fig. 1.

As shown in Figures 1 to 7, a new type of wireless demonstrator includes a handheld terminal 1 and a computer receiving terminal 2 plugged into a computer. The handheld terminal 1 includes a housing 11 and a power supply circuit arranged in the housing 11 12. A processor 13, an audio signal processor 14 connected to the processor 13, a 2.4G wireless transmitter 15 connected to the processor 13, and a control input device 16 connected to the processor 13 , the housing 11 is provided with a sound input device 17 connected to the audio signal processor 14, the computer receiver 2 includes a microcontroller 21, a 2.4G connected to the microcontroller 21 A wireless receiver 22 and a USB bus interface 23 connected with the microcontroller 21 .

The handheld terminal 1 also includes a laser port 18 arranged at the front end of the housing 11 , and a laser generator 19 connected to the power supply circuit 12 is also provided in the housing 11 .

The control input device is a control input button, and the control input button includes a voice on/off button, a playback stop button, a laser pointer on button, a page up button, a page down button, and a volume adjustment button, and the voice on/off button The off button and the stop playing button are arranged on the top of the control input button, the stop playing button, the laser pointer on button, the page turning button and the page turning button are arranged at the middle part of the control input button, and the volume The adjustment button is arranged at the lower part of the control input button.

The sound input device is a head-mounted or lavalier microphone.

The receiving end of the computer is a USB receiver.

The power supply circuit includes a charger with a main chip model of TP4054 and a DC converter with a main chip model of NCP1402 connected to the charger with a core number of TP4054.

The main chip model of the audio signal processor is TLV320AIC23 chip.

The main chip models of the processor and microcontroller are both STM32F405RGT chips, and the main chip models of the 2.4G wireless transmitter and 2.4G wireless receiver are 24L01 chips.

The present invention has a simple structure and is convenient to use. It can realize wireless audio transmission during use, thereby solving the disadvantage that the speaker cannot leave the podium, and it can allow the speaker on the podium to complete the recording of PPT and sound synchronously, which is convenient to use and Complete functions, good use stability, strong applicability and good practicability.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or changes derived from the essential spirit of the present invention still belong to the protection scope of the present invention.

Claims (8)

1. a novel radio demonstration device, comprise handheld terminal and the connecting computer receiving end with computer grafting, it is characterized in that: described handheld terminal comprises housing and is arranged on the feed circuit in described housing, processor, the audio signal processor be connected with described processor, the 2.4G wireless launcher be connected with described processor and the control inputs device be connected with described processor, be provided with the Speech input device be connected with described audio signal processor on the housing, described connecting computer receiving end comprises microcontroller, the 2.4G wireless receiver be connected with described microcontroller and the usb bus interface be connected with described microcontroller.

2. novel radio demonstration device according to claim 1, is characterized in that: described handheld terminal also comprises the laser port being arranged on housing forward end, is also provided with the laser generator be connected with described feed circuit in described housing.

3. novel radio demonstration device according to claim 2, it is characterized in that: described control inputs device is control inputs button, described control inputs button comprises voice on/off button, stop broadcast button, laser pen is released the button, upper page-turning button, lower page-turning button, volume knob, described voice on/off button, broadcast button is stopped to be arranged on the top of described control inputs button, described, stop broadcast button, laser pen is released the button, upper page-turning button, lower page-turning button is arranged on the middle part of described control inputs button, described volume knob is arranged on the bottom of described control inputs button.

4. novel radio demonstration device according to claim 3, is characterized in that: described Speech input device is wear-type or clip-on microphone.

5. novel radio demonstration device according to claim 4, is characterized in that: described connecting computer receiving end is USB receiver.

6. novel radio demonstration device according to claim 5, is characterized in that: it be TP4054 core charger and the master chip model that is connected with TP4054 core charger is NCP1402 DC converter that described feed circuit comprise master chip model.

7. novel radio demonstration device according to claim 6, is characterized in that: the master chip model of described audio signal processor is TLV320AIC23 chip.

8. novel radio demonstration device according to claim 7, is characterized in that: the master chip model of processor and microcontroller is STM32F405RGT chip, and the master chip model of described 2.4G wireless launcher and 2.4G wireless receiver is 24L01 chip.