Design And Implementation Of Bluetooth Hearing Aid Receiver Components

Bluetooth technology is an open global specification for wireless communications which is established by Bluetooth Special Interest Group. It can replace cable and transport data and voice in short range wirelessly. Bluetooth technology is widely used in various fields, and it is widely used in various portable electronic products to transport data and voice wirelessly.This paper designs a new bluetooth hearing aid for Hearing disorders. It introduces bluetooth technology briefly. It analysises and researches the layer of bluetooth protocol stack and bluetooth application profile. Based on the research of audio related bluetooth protocol used profile, it puts forward the specific solution of receiving component of Bluetooth hearing aid.This paper expounds the design of the hardware part and software part of receiving component of Bluetooth hearing aid in detail. The core of Hardware platform using CSR BlueCore5-Multimedia solution, and in the paper we introduces the design of bluetooth core module circuit and peripheral hardware selection. Bluetooth core module circuit include clocking circuit, RF circuit, audio interface circuit FLASH memory circuit, power supply circuit, reset circuit, LED and key circuits, etc. Peripheral hardware selection includes the selection and design of speakers, battery and antenna. In the design of software platform, we use the CSR Bluelab SDKs. In the paper, we introduce the CSR Bluelab SDKs briefly. And we introduce the working principle of bluetooth protocol stack, program flowchart and code design of receiving components of bluetooth hearing aid in detail. In the final test, the receiving component of Bluetooth hearing aid can receive and play audio data and achieve a good voice.Overall, through the software and hardware design of receiving component of Bluetooth hearing aid, we accumulated experience and achievement of bluetooth technology hardware and software design, and we lay a foundation for the extension, perfection and commercialization of Bluetooth hearing aid system. Through a more perfect testing and structure design, the system can achieve better actual effect, and become the final product.