Demonstration system, mobile terminal and wireless internet access card

Abstract

The invention discloses a demonstration system, a mobile terminal and a wireless internet access card and relates to the wireless communication technology. In the embodiment of the invention, various instructions are converted into control signals corresponding to peripherals such as a keyboard, a mouse and the like on the mobile terminal to be sent by an added first wireless communication module, and a second wireless communication module is correspondingly added in the wireless internet access card of a PC machine connected with a USB to receive the control signals sent by the mobile terminal and transmit the control signals to the PC machine through the USB, so that a speaker can use the mobile terminal to remotely control the PC machine by bluetooth communication during a speech to control to play a demonstration file and to operate the demonstration file during the speech conveniently.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a demonstration system applying wireless communication technology, a mobile terminal and a wireless network card. Background technique [0002] With the maturity of 3G technology, the data carrying capacity of the wireless network is getting stronger and stronger. Wireless Internet access has become a trend, and wireless network cards used for wireless Internet access have also entered people's lives. [0003] Document presentation is a very important link in teaching and conferences. Electronic document presentation based on PC (Personal Computer, personal computer) has become the mainstream way of document presentation, and currently the auxiliary equipment for document presentation is mainly keyboard, mouse and wireless microphone. During the speech, the speech document is projected on the screen through the PC and the projector connected to the PC. In order to achieve a ...

AI Technical Summary

Problems solved by technology

During the speech, the speech document is projected on the screen through the PC and the projector connected to the PC. In order to achieve a better speech effect, the speaker needs to leave the PC and go to the screen to give a speech, but this has caused a lot of inconvenience to the speaker. : First of all, the speaker cannot operate the PC in front of the screen to control the playback of electronic documents. If another person is set up to operate in front of the PC, there may be a situation of incoordination, which also affects the speech effect; second, the speaker is on the screen. When giving a speech, the content of the speech may not be fully remembered, so that the speaker needs to see the speech while speaking, but it is not easy for the speaker to see all the content on the screen directly in front of the screen; thirdly, the speaker sometimes needs to Write on the blackboard or mark in the presentation document. Both the traditional blackboard writing and the writing on the PC blackboard limit the range of activities of the speaker, which affects the interactivity of the speech.

[0004] At present, there are some systems for remotely controlling the playback of presentation files, which usually include a remote control device and a signal conversion device. The user sends a signal to the signal transmission device through the remote control device, and the signal transmission device sends the received signal to the PC. Usually only one kind of operation can be performed with this system, such as page turning operation, but not more complex operations, and the user needs to use a special signal transmission device to send the received signaling to the PC to realize remote control

[0005] The inventors of the present application have found that the control module of the wireless network card has relatively strong processing speed and control capability, but when the wireless network card is not used to access the Internet, the control module in the network card is in an idle state, wasting the processing resources in the wireless network card , and users need additional signal transmission equipment when they need to demonstrate documents, which is very inconvenient

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