Tourism and conference broadcasting audio guide based on digital RF frequency-modulation technology
A technology of explainer and audio codec, which is applied in the field of conference broadcast explainer and tourism, can solve the problems of incomprehensible host content, noisy human voice, etc., increase processing noise reduction and sound quality effects, increase control ability, avoid The effect of sending and receiving lost packets
Inactive Publication Date: 2015-11-11
王国运
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[0003] With the development of electronic application technology, more and more technologies are applied to every field of life; digital RF FM travel radio interpreter brings better user experience to tourism and conferences and reduces noise pollution caused by public places. Let tourism practitioners bid farewell to leading the team without tearing and roaring, and inform the tour group of the itinerary in a soft voice; large meetings and press conferences are noisy, and the participants cannot understand the content of the host, so that the participants can clearly understand content
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[0018] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0019] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0020] like figure 1 As shown, a kind of tourism and conference broadcast explainer based on digital RF frequency modulation technology of the present invention includes an ARM core board, and the ARM core board includes a 12C bus / 12S bus, serial peripheral interface, general programmable IO interface and analog-to-digital conversion module / digital-to-analog conversion module;
[0021] The input and output terminals of the ARM core board are...
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The invention discloses a tourism and conference broadcasting audio guide based on the digital RF frequency-modulation technology. The tourism and conference broadcasting audio guide comprises an ARM core board. The ARM core board comprises a 12C bus / 12S bus, a serial peripheral interface, a universal programmable IO interface and an analog-digital conversion module / digital-analog conversion module. The input and output end of the ARM core board is connected with an audio encoder / decoder of the type of WM8988. One output end of the audio encoder / decoder is connected with an EAR voice output module. The other output end of the audio encoder / decoder is connected with a voice gain amplifying module. The MCU multi-line processor is used in cooperation with an AUDIO CODEC in the use process, and therefore the control capacity is improved, the development process is simplified, space cost is better saved, and the better denoising and tone quality processing effects of the AUDIO CODEC are added; an MCU is connected with RF, and therefore data transmission and verification can be better processed, data packets are prevented from being lost during transceiving, and the distance problem is better solved.
Description
technical field [0001] The invention relates to a tour and conference broadcast explainer based on digital RF frequency modulation technology. Background technique [0002] With the rapid development of my country's logistics industry today, radio frequency technology, with its unique advantages, overcomes the shortcomings of barcode recognition that requires optical visibility, short recognition distance, and unchangeable information, and has become a dazzling bright spot in the field of automatic logistics identification. The radio frequency identification system usually consists of two parts: electronic tags and readers. The electronic tag is the real data carrier of the radio frequency identification system, which is placed on the items that need to be identified. With the continuous development of radio frequency technology, there are a wide variety of products. For example, Texas Instruments, Motorola, Phillips and other world-renowned manufacturers all produce RFID p...
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IPC IPC(8): G09F27/00H04H20/48
Inventor 王国运
Owner 王国运