CN202067412U - Suspension type multimedia teaching device - Google Patents

Abstract

The utility model discloses a hanging multimedia teaching device, which comprises a box body, on which a hanging nose is arranged, a power amplifying unit, a wireless voice receiving unit connected with the power amplifying unit and operation buttons are arranged in the box body, and the box body The body is provided with an audio input interface unit and a speaker interface connected to the power amplification unit; it is characterized in that the box is also provided with a computer control host, and the box is provided with a USB interface and an RJ45 interface connected with the computer control host. The computer control host is connected with the power amplification unit; the box body is provided with a central controller connected with the computer control host, and the box body is provided with a projector interface connected with the central controller, a physical display platform interface, and an electronic whiteboard. An interface, a screen interface and an operation module for wired communication with the computer control host. The utility model has the advantages of compact structure and convenient use. When the teacher is in class, he only needs to insert the self-contained U disk into the computer control host to directly run the self-contained teaching courseware.

Description

Hanging multimedia teaching device

Technical Field The utility model belongs to the technical field of multimedia teaching, and relates to a hanging multimedia teaching device.

Background Art The multimedia teaching system in the prior art is generally integrated and installed in the teaching place with desktop computers (or laptop computers), projectors, central controllers, physical display stands, wireless microphones, power amplifiers, speakers, screens and various wires. Inside, realize multimedia teaching. However, the existing multimedia teaching system has the disadvantages of relatively high equipment cost, complex structure and relatively low integration level, and the installation locations of each device are relatively scattered, generally installed in several different locations, resulting in operational differences. inconvenient.

SUMMARY OF THE INVENTION The purpose of this utility model is to solve the technical problem of inconvenient operation in the prior art, and provide a hanging multimedia teaching device, which has a built-in computer control host, and a multimedia teaching system can be formed by connecting a projector and a speaker , Teachers only need to insert their own U disk into the computer control host during class, and then they can directly run their own teaching courseware.

In order to achieve the above object, the utility model suspension multimedia teaching device comprises a box, the box is provided with a hanging nose, the box is provided with a power amplification unit and a wireless voice receiving unit connected with the power amplification unit and an operation button, The box body is provided with an audio input interface unit and a speaker interface connected to the power amplification unit; the main point is that the box body is also provided with a computer control host, and the box body is provided with a USB interface and an RJ45 interface connected with the computer control host , the computer control host is connected with the power amplification unit; the box is provided with a central controller connected with the computer control host, and the box is provided with a projector interface connected to the central controller, a physical display platform interface, an electronic A whiteboard interface, a screen interface and an operation module for wired communication with the computer control host.

The operation module is an operation button for wired communication with the computer control host.

The utility model integrates the computer control host into the existing voice amplification system. When the teacher needs to use various files to accompany the lecture, he only needs to plug the mobile disk into the USB interface, and then use the operation button to select the file. The control host will read the corresponding file to play, and amplify the audio through the power amplifier unit, and amplify and output the VGA signal through the central controller, which greatly improves the convenience; and it is compact in structure, easy to install and easy to use.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawing is a schematic diagram of the circuit structure principle of the utility model.

In the figure: 1. Cabinet 2. Audio input interface unit 3. Hanging nose 4. Wireless voice receiving unit 5. Power amplification unit 6. 7. Speaker interface 8. Central controller 9. Projector interface 10. Physical display platform interface 11. Electronic whiteboard interface 12. Screen interface 13. Operation button 14. Operation button 15. Computer control host 16. RJ45 interface 17. USB interface

DETAILED DESCRIPTION Referring to the accompanying drawings, the utility model includes a box body 1, the box body 1 is provided with a hanging nose 3, and the box body 1 is provided with a power amplification unit 5 and a wireless voice receiving unit 4 connected with the power amplification unit 5 and Operation button 14, the audio input interface unit 2 connected with the power amplifier unit 5 and the speaker interface 6, 7 are provided on the cabinet 1; a computer control host 15 is also provided in the cabinet 1, and a computer control The host computer 15 is connected with the USB interface 17 and the RJ45 interface 16, and the computer-controlled host computer 15 is connected with the power amplification unit 5; The projector interface 9 connected with the central controller 8, the object display platform interface 10, the electronic whiteboard interface 11, the screen interface 12 and the operation button 13 for wired communication with the computer control host 15; the operation buttons 13, 14 are arranged on the box body 1 On; the central controller 8 can control the automatic opening and closing of the projector and the computer, and simultaneously control the automatic raising and lowering of the screen.

After plugging in the power supply and starting the machine, the computer control host 15 of the present utility model can be initialized first, and then the main interface is displayed on the screen, and the required files can be selected for operation by the operation buttons 14 and 13. When teachers need to use various files for teaching, they only need to plug the mobile disk into the USB interface, and then use the operation button to select the file, and the computer control host 15 will read the corresponding file and play it. The VGA signal is controlled by the computer. The host 15 or the input terminal of the interface 10 of the external physical display stand reads and outputs to the central controller 8, which is controlled by the operation button 13 to realize the selection of the computer or the physical display stand VGA signal output to the projector, and then projected to the screen by the projector superior.

And such as the voice signal of wireless microphone output, the signal from computer (comprising the file signal that computer controls host computer self storage and from the signal of USB interface and RJ45 interface), object display stand, electronic whiteboard etc. can be amplified and outputted to by the utility model speakers and projected onto the screen.

Claims (2)

1. A suspension type multimedia teaching device, it comprises a box, the box is provided with a hanging nose, the box is provided with a power amplifying unit and a wireless voice receiving unit connected with the power amplifying unit and an operation button, the box is provided with There is an audio input interface unit and a speaker interface connected to the power amplification unit; it is characterized in that the box is also equipped with a computer control host, and the box is provided with a USB interface and an RJ45 interface connected to the computer control host, and the computer control host Connected with the power amplification unit; the box is provided with a central controller connected with the computer control host, and the box is provided with a projector interface connected to the central controller, a physical display platform interface, an electronic whiteboard interface, and a screen An interface and an operation module for wired communication with the computer control host. 2. The suspended multimedia teaching device according to claim 1, characterized in that the operation module is an operation button for wired communication with the computer control host.

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