CN201780701U - Platform type integrative multimedia equipment - Google Patents

Abstract

The utility model relates to platform type movable multimedia equipment for working or teaching. The platform type integrative multimedia equipment comprises a platform box body, a projection machine and a control device, wherein the projection machine and the control device are arranged in the platform box body, and a liquid crystal display, toughened glass, an object stand and an air breaker are arranged on the platform box body; and the control device comprises a sound box, a main frame, a central control system and an electrical system. The utility model integrates the display, the projection machine, a computer, the sound box, a control system, a power amplifier and a platform as a whole, serves as a multimedia classroom, can replace the conventional platform, has all concepts required for developing the multimedia teaching, can improve the reliability, reduce the installation workload and the maintenance cost, is dustproof and pickproof, and is convenient and fast to use.

Description

Podium integrated multimedia equipment

technical field

The utility model relates to a desktop mobile multimedia device for office or teaching.

Background technique

Electronic podiums are widely used in teaching. The mode usually used in the existing electronic podium is "electric screen + projector + computer + power amplifier + speaker + control system + physical booth" mode. The electric curtain is hoisted on the ceiling, it is very troublesome to change the light bulb, and the dustproof ability is poor; the audio system is installed at the left and right corners of the classroom, and audio cables need to be connected, so the dustproof ability is poor, especially the installation position of the speaker is often the hidden line of the classroom, and it is very difficult during construction. It is easy to cut off the hidden line; the power amplifier generally adopts a commercial power amplifier, which comes with a large number of useless functions, resulting in waste; the physical booth is configured separately, which is bulky and inconvenient to use. The central control system is generally developed by a third party, and the use of the above-mentioned equipment will introduce many failure points.

In the multimedia classroom established in this way, there is a project integration relationship between the equipment, and the degree of integration is low. It is very inconvenient to control each equipment separately during use, and it also brings a lot of trouble to the school for maintenance. Difficult when other classrooms or meeting rooms want to use the same multimedia equipment.

Contents of the invention

The purpose of the utility model is to avoid the deficiencies of the prior art and provide a podium-style integrated multimedia device, thereby effectively solving the problems in the prior art.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the podium-type integrated multimedia equipment includes a podium box, a projector and a control device, and its feature is that the projector and the control device are arranged on the podium Inside the box, there are also liquid crystal displays, tempered glass, physical booths and air switches on the podium box. The control devices include speakers, hosts, central control systems and electrical systems.

The electrical system includes a computer main board, a single-chip microcomputer, an audio processor, a power amplifier main board, an image processor, a peripheral interface, a power supply, buttons and indicator lights.

Described tempered glass, physical booth and liquid crystal display are arranged on the top of the podium box, speakers are installed on both sides of the box, air switches are installed at the bottom of the box, and projectors and central control systems are installed in the middle of the box.

The computer main board of described electrical system adopts X86 series main board, is respectively connected with single-chip microcomputer, audio processor and whiteboard; It is connected with the indicator light; the audio processor adopts TDA8425 integrated circuit chip, which is connected with the main board of the power amplifier; the main board of the power amplifier adopts the TDA8210 analog power amplifier board, which is connected with the speaker; Touch the button switch, the indicator light adopts LED light-emitting diode; the power supply is connected with the computer main board and the single-chip microcomputer, and the 220V alternating current is rectified to provide power to the computer main board and the single-chip microcomputer. The sound box is a thin shockproof sound box.

The beneficial effects of the utility model are: the podium-type integrated multimedia equipment integrates a display, a projector, a computer, a speaker, a control system, a power amplifier, and a podium, and can be used as a multimedia classroom, and can also replace traditional podium equipment , has all the concepts required for multimedia teaching, can improve reliability, reduce installation workload, reduce maintenance costs, prevent dust and theft, and is a convenient and quick-to-use podium-style integrated multimedia device. The entire equipment is divided into 6 units of operation, display, processing, audio, video display, and control. The 6 units are integrated into a metal podium, and the control unit is responsible for controlling all equipment. The podium is not only an installation platform and a protection platform for other equipment, but also a video booth and an operation platform for teachers during lectures; the processing unit built in the podium provides an external interface through which traditional multimedia classroom equipment can be connected to the utility model In this way, the scope of use of the equipment is expanded, the existing investment is protected, and users are provided with more choices. Its electronic devices are integrated in the podium, which is dust-proof and anti-theft. Comes with a variety of expansion interfaces, which can be connected to laptops, wireless microphones, wireless mouse keyboards, cameras and other equipment, making it more convenient and quick to use; the equipment comes with casters, easy to adjust, can be pushed between classrooms, and is also suitable for different specifications classroom.

Description of drawings

Fig. 1 is the main view structure schematic diagram of the utility model;

Fig. 2 is the left view structural representation of the utility model;

Fig. 3 is the right view structural representation of the utility model;

Fig. 4 is the functional block diagram of electric part circuit of the present utility model;

Fig. 5 is the working flowchart of the electric part single-chip microcomputer of the present utility model.

As shown in the figure: 1. Host; 2. Central control system; 3. Tempered glass; 4. Physical booth; 5. 6. Projector; Podium box; 7. LCD display; 8. Speaker; 9. air switch.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figures 1 and 2, the podium-type integrated multimedia equipment includes a podium box 6, a projector 5 and a control device, and the projector 5 and the control device are arranged in the podium box 6, and the podium box The body is also provided with a liquid crystal display 7, tempered glass 3, a physical exhibition stand 4, a sound box 8 and an air switch 9, and the control device includes a host computer 1, a central control system 2 and an electrical system.

The electrical system includes a computer main board, a single-chip microcomputer, an audio processor, a power amplifier main board, an image processor, a peripheral interface, a power supply, buttons and indicator lights.

Described tempered glass, physical booth and liquid crystal display are arranged on the top of the podium box, speakers are installed on both sides of the box, air switches are installed at the bottom of the box, and projectors and central control systems are installed in the middle of the box.

The computer main board of described electrical system adopts X86 series main board, is respectively connected with single-chip microcomputer, audio processor and whiteboard; It is connected with the indicator light; the audio processor adopts TDA8425 integrated circuit chip, which is connected with the main board of the power amplifier; the main board of the power amplifier adopts the TDA8210 analog power amplifier board, which is connected with the speaker; Touch the button switch, the indicator light adopts LED light-emitting diode; the power supply is connected with the computer main board and the single-chip microcomputer, and the 220V alternating current is rectified to provide power to the computer main board and the single-chip microcomputer. The sound box is a thin shockproof sound box.

The working principle of the podium-style integrated multimedia device is as follows: it uses a high-performance single-chip microcomputer to control the startup and shutdown of the built-in computer, the processing and switching of video and audio signals, and the startup and shutdown of the projector. A high-performance integrated multi-media equipment.

When the device is powered on, 220V AC supplies power to the entire system through the power module, and the power indicator light on the key board is lit. Lightly touch the power on/off button on the key board to give the MCU a power-on signal (tap again for the power-off signal). When the audio channel is turned on, the mute indicator light is turned on, and at the same time, the single-chip microcomputer sends an opening command to the projector through the serial port, the projector is turned on, and the default video signal of the projector is provided by the computer. Touch the power on/off key on the key board again, when the single chip microcomputer detects the signal of this key again, it will immediately send a shutdown signal to the computer motherboard, and at the same time, the serial port will control the projector to shut down, and the key board will finally return to the display state before power on.

When the volume needs to be adjusted, touch the volume up or down button, and the MCU detects the volume control signal and then controls the audio processor to adjust the volume through the analog I2C interface; After receiving the signal, control the switching of audio and video to the notebook mode at the same time; when the external physical booth is connected, you can also lightly touch the signal selection button to switch from the single-chip microcomputer to the physical booth mode. Tap the restart button when it needs to be restarted, tap the mute button when it needs to turn off the sound, and press it again to open the sound channel.

All audio signals are input to the audio processor circuit for control and processing after passing through the selection switch circuit, and then input to the power amplifier circuit for processing after passing through the mute control circuit, and then output to the sound box. All audio signals are output to the projector and liquid crystal display after being selected by the single-chip microcomputer control.

The control of each part of the utility model and the processing of data are realized by special software for the computer motherboard, because the software is not in the scope of protection of the utility model, no explanation is given here.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. say desk-top integrated multimedia equipment for one kind, comprise dais casing, projector and control device, it is characterized in that: described projector and control device are arranged in the casing of dais, also be provided with LCD, tempered glass, real object exhibition booth and air switch on the casing of dais, control device includes audio amplifier, main frame, central control system and electrical system.

2. according to claim 1ly say desk-top integrated multimedia equipment, it is characterized in that being: described electrical system comprises computer main board, single-chip microcomputer, audio process, power amplifier mainboard, image processor, Peripheral Interface, power supply, button and pilot lamp.

3. according to claim 1ly say desk-top integrated multimedia equipment, it is characterized in that being: described tempered glass, real object exhibition booth and LCD are arranged on casing top, dais, audio amplifier is installed in the both sides of casing, air switch is installed in lower box, and projector and central control system are installed in the casing middle part.

4. according to claim 2ly say desk-top integrated multimedia equipment, it is characterized in that being: the computer main board of described electrical system adopts X86 series mainboard, is connected with single-chip microcomputer, audio process and blank respectively; Single-chip microcomputer is connected with computer main board, audio process, power amplifier mainboard, image processor, Peripheral Interface, button and pilot lamp respectively; Audio process adopts the TDA8425 integrated circuit (IC) chip, is connected with power amplifier mainboard; Power amplifier mainboard adopts TDA8210 analog amplifier plate, is connected with audio amplifier; Image processor adopts the FSAV433 integrated circuit (IC) chip, and Peripheral Interface adopts the RS232 interface, and button adopts and touches keyswitch, and pilot lamp adopts the LED light emitting diode; Power supply is connected with single-chip microcomputer with computer main board, provides power supply to computer main board and single-chip microcomputer with the 220V alternating current after rectification.

5. describedly say desk-top integrated multimedia equipment according to claim 1 or 3, it is characterized in that being: described audio amplifier is the shockproof audio amplifier of thin type.

Images