CN203167154U

CN203167154U - Multifunctional transmission apparatus applied to multimedia teaching

Info

Publication number: CN203167154U
Application number: CN 201320216808
Authority: CN
Inventors: 李立
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-25
Filing date: 2013-04-25
Publication date: 2013-08-28
Anticipated expiration: 2023-04-25

Abstract

A multifunctional transmission apparatus applied to multimedia teaching comprises a wireless display processing module, a wired display processing module, an audio processing module and a power supply module. The wireless display processing module is composed of an antenna system and a signal processing chipset. The antenna system is responsible for receiving wireless data signals transmitted by mobile equipment and transmitting the received wireless data signals to the signal processing chipset. The signal processing chipset receives the wireless data signals and then uniformly decodes the wireless data signals to obtain a decoded data flow. The decoded data flow is transmitted to the wired display processing module. The wired display processing module is composed of a display processing chip and an interface circuit. The display processing chip receives the decoded data flow and then performs recoding. An obtained display signal is transmitted to an HDMI interface and a VGA interface of the multifunctional transmission apparatus to be output.

Description

A kind of multi-functional transmitting device that is applied to multimedia teaching

Technical field

The utility model relates to a kind of multi-functional transmitting device, is a kind of transmitting device that is applied to multimedia teaching specifically.

Background technology

At present the multimedia teaching facility that uses in teaching process of school is generally computer and adds the traditional approach that projecting apparatus is used, and the notebook that carries by the existing desktop computer in classroom or teacher is connected to data wire and carries out teaching demonstration in the projection.In the practical operation, because desktop computer or notebook interface often carry out plug and cause interface to connect fault easily, or show problem such as jitter, thereby influenced quality of instruction, the more important thing is the demonstration of operating of smart mobile phone that present this traditional connected mode does not support that present stage is popular or panel computer, thereby limited the scope of application, hindered the update of equipment.

The utility model content

The utility model is to overcome the weak point that prior art exists, a kind of multi-functional transmitting device that is applied to multimedia teaching is provided, can effectively solve existing multimedia teaching facility and not support the problem of multiple mobile device demonstration, can not only support original wired connection mode, can also provide wireless connect technology for the mobile device of different platform, the realization classroom instruction is demonstrated, thereby has enlarged the scope of application of multimedia equipment, has reduced the failure rate of equipment interface.

The utility model is that the technical solution problem adopts following technical scheme to be:

A kind of design feature that is applied to the multi-functional transmitting device of multimedia teaching of the utility model is: the composition of described multi-functional transmitting device comprises wireless demonstration processing module, wired demonstration processing module, audio processing modules and supply module;

Described wireless demonstration processing module is made up of antenna system and signal processing chip; Described antenna system is responsible for receiving the wireless data signal that mobile device sends, and the wireless data signal that receives passed to described signal processing chip, described signal processing chip is accepted to unify behind the described wireless data signal decoding and is handled and obtain decoded data stream; And described decoded data stream passed to wired demonstration processing module;

Described wired demonstration processing module is made up of demonstration process chip and interface circuit, described demonstration process chip is accepted to encode behind the described decoded data stream again, and the demonstration signal of acquisition passes to HDMI interface and the VGA interface of described multi-functional transmitting device and exports.

Described wired demonstration processing module is carried out signal conversion processes by HDMI interface signal or the VGA interface signal that described interface circuit obtains the External Access Equipment input, and the switching signal of acquisition passes to described demonstration process chip; After described demonstration process chip was accepted described switching signal and carried out Unified coding, the HDMI interface and the VGA interface that offer described multi-functional transmission dress were exported;

Described audio processing modules is used for that the audio signal of External Access Equipment input is carried out filtering and amplifies, and the demonstration signal of the amplifying signal of acquisition and described demonstration process chip is exported synchronously;

Described supply module is used to described multi-functional transmitting device that system power supply is provided.

A kind of design feature that is applied to the multi-functional transmitting device of multimedia teaching of the utility model also is:

Described signal processing chip adopts the BCM4329 chip, and described demonstration process chip adopts the TF680 chip.

Described BCM4329 chip with the annexation of described antenna system is: the WIFI aerial signal incoming end of described antenna system is connected with the WL-TX pin with the WL-RX pin of described BCM4329 chip respectively with transmitting terminal, and the Bluetooth antenna signal incoming end of described antenna system is connected with the BT-TX pin with the BT-RX pin of described BCM4329 chip respectively with transmitting terminal.

The annexation of described BCM4329 chip and described TF680 chip is: the DAT0 pin of described BCM4329 chip to DAT3 pin is linked in sequence at the D0 of described TF680 chip pin to the D3 pin, is used for transmitting described decoded data stream; The VDD pin of described BCM4329 chip links to each other with the GND pin with the VCC pin of described TF680 chip respectively with the VSS1 pin, is used to described TF680 chip power supply; The CMD of described BCM4329 chip and CLK pin insert CMD and the CLK pin of described TF680 chip respectively.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

The utility model is that various teaching equipments provide line access mode and these two kinds of input modes of wireless access way, can effectively solve the single access way of traditional electrical brain, support the number of different types mobile device, especially present stage main flow smart mobile phone and panel computer, can directly apply to the demonstration of multimedia teaching by the utility model, enlarge the scope of application.

Description of drawings

Fig. 1 is the utility model system configuration schematic diagram;

Fig. 2 is the annexation figure of the utility model BCM4329 chip and antenna system;

Fig. 3 is the annexation figure of the utility model BCM4329 chip and TF680 chip.

Embodiment

In concrete the enforcement, as shown in Figure 1, a kind of composition that is applied to the multi-functional transmitting device of multimedia teaching comprises wireless demonstration processing module, wired demonstration processing module, audio processing modules and supply module;

Wireless demonstration processing module is made up of antenna system and signal processing chip; Antenna system is responsible for receiving the wireless data signal that mobile device sends, and the wireless data signal that receives passed to signal processing chip, signal processing chip is accepted the different wireless transmission algorithm that carries according to different mobile devices behind the wireless data signal, comprise airplay and the WIDI of INTEL and the up-to-date Miracast technology alliance algorithm of supporting apple, and unify decoding and handle the acquisition decoded data stream; And decoded data stream passed to wired demonstration processing module; This device supports the WIFI signal of 2.5G and 5.0GHZ to handle simultaneously, can satisfy the signal transmission of multiple WIFI equipment in the future, avoids signal to disturb, and improves data transmission efficiency.

Referring to Fig. 2, signal processing chip adopts the BCM4329 chip of Botong company, the annexation of BCM4329 chip and antenna system is: antenna system comprises WIFI antenna and Bluetooth antenna, the WIFI aerial signal incoming end of antenna system is connected with the WL-TX pin with the WL-RX pin of BCM4329 chip respectively through the SWITCH conversion with transmitting terminal, and the Bluetooth antenna signal incoming end of antenna system is connected with the BT-TX pin with the BT-RX pin of BCM4329 chip respectively through the BT-SWITCH conversion with transmitting terminal.The VCC termination direct current supply of BCM4329 chip, the CLOCK pin connects signal source of clock.

Wired demonstration processing module is made up of demonstration process chip and interface circuit, the demonstration process chip is accepted to encode behind the decoded data stream again, the demonstration signal that obtains passes to HDMI interface and the VGA interface of multi-functional transmitting device and exports, the signal of output is used for carrying out the demonstration of outside demonstration equipment, the HDMI that this device provides and VGA interface can satisfy the input needs of all projecting apparatus in the market or HDTV (High-Definition Television), and the user can freely select according to the situation of equipment of itself.

As shown in Figure 3, show that process chip adopts the TF680 chip of Tai Fa scientific ﹠ technical corporation.The annexation of BCM4329 chip and TF680 chip is: the DAT0 pin of BCM4329 chip to DAT3 pin is linked in sequence at the D0 of TF680 chip pin to the D3 pin, is used for transmitting decoded data stream; The VDD pin of BCM4329 chip links to each other with the GND pin with the VCC pin of TF680 chip respectively with the VSS1 pin, is used to the TF680 chip power supply; The CMD of BCM4329 chip and CLK pin insert CMD and the CLK pin of TF680 chip respectively, are used for clock synchronously and the control command transmission.

Wired demonstration processing module is carried out signal conversion processes by HDMI interface signal or the VGA interface signal that interface circuit obtains the External Access Equipment input, and the switching signal of acquisition passes to the demonstration process chip; After showing that process chip is accepted switching signal and carried out Unified coding, the HDMI interface and the VGA interface that offer multi-functional transmitting device are exported;

Audio processing modules is used for that the audio signal of External Access Equipment input is carried out filtering and amplifies, and the demonstration signal of the amplifying signal of acquisition and demonstration process chip is exported synchronously.

Supply module is used to multi-functional transmitting device that system power supply is provided.

Claims

1. a multi-functional transmitting device that is applied to multimedia teaching is characterized in that the composition of described multi-functional transmitting device comprises wireless demonstration processing module, wired demonstration processing module, audio processing modules and supply module;

Described wired demonstration processing module is made up of demonstration process chip and interface circuit, described demonstration process chip is accepted to encode behind the described decoded data stream again, and the demonstration signal of acquisition passes to HDMI interface and the VGA interface of described multi-functional transmitting device and exports;

2. the multi-functional transmitting device that is applied to multimedia teaching according to claim 1 is characterized in that described signal processing chip adopts the BCM4329 chip, and described demonstration process chip adopts the TF680 chip.

3. the multi-functional transmitting device that is applied to multimedia teaching according to claim 2, it is characterized in that described BCM4329 chip with the annexation of described antenna system is: the WIFI aerial signal incoming end of described antenna system is connected with the WL-TX pin with the WL-RX pin of described BCM4329 chip respectively with transmitting terminal, and the Bluetooth antenna signal incoming end of described antenna system is connected with the BT-TX pin with the BT-RX pin of described BCM4329 chip respectively with transmitting terminal.

4. the multi-functional transmitting device that is applied to multimedia teaching according to claim 2, the annexation that it is characterized in that described BCM4329 chip and described TF680 chip is: the DAT0 pin of described BCM4329 chip to DAT3 pin is linked in sequence at the D0 of described TF680 chip pin to the D3 pin, is used for transmitting described decoded data stream; The VDD pin of described BCM4329 chip links to each other with the GND pin with the VCC pin of described TF680 chip respectively with the VSS1 pin, is used to described TF680 chip power supply; The CMD of described BCM4329 chip and CLK pin insert CMD and the CLK pin of described TF680 chip respectively.