Development and demonstration of a bi-directional bone conduction transducer for voice communication

**简介**Mobilus Labs（原名Noto Technologies LTD）是一家致力于开发利用双向骨传导原理的新一代免提语音通信系统的公司。该技术使佩戴个人防护装备（护耳器、安全头盔、呼吸器）的用户能够与人和设备进行正常对话。美孚鲁斯的主导产品是一种模块化夹式通信模块，可改装到标准安全头盔的后部，使用户能够访问基于语音的系统（通信、语音控制），无论周围环境如何。这一令人向往的概念是一款能够提高建筑/工业领域工作人员的安全性和生产力的产品。**创新**这一概念本质上是新颖的，而各方已将骨传导集成到消费产品中。美孚鲁斯在为 PPE 领域开发具有双向语音通信功能的工业专用设备方面是独一无二的。此外，该公司还开发了广泛的知识产权和技术知识，以确保在极端噪声存在的情况下所需和不需要的声信号的适当质量和区分。**项目动机**美孚鲁斯利用投资者和创新英国基金开发了美孚鲁斯解决方案的高级原型（项目#9045，项目结束：2019 年 11 月），该硬件单元现在是本应用范围之外商业开发的焦点。然而，目前所使用的市售换能器组件的性能限制了更大解决方案的真正潜力。企业需要研究、设计和开发自己的双向骨传导换能器，以扩大商业增长并满足用户期望，其中包括：* 免提全双工语音通信（相对于一键通接口）* 与行业标准 PPE 的免耳兼容性* 对 100dB 以上的环境噪声的抵抗力 * 对高水平电磁干扰的抵抗力 * 声功率效率使设备一次充电可持续 14 小时的工作时间。这样做的动机该项目旨在使公司能够开展技术研发计划，以开发这种新型双向骨传导传感器，充分利用 Mobilus 耳放和免提工业通信平台的优势。这项研发将使企业能够在领先的行业参与者和一组专家分包商的支持下进行关键的应用研究和测试，这些分包商拥有开发和验证美孚系统所需的专业知识和设施。

**Introduction**Mobilus Labs (formerly named Noto Technologies LTD) is a company dedicated to developing a new generation of hands-free voice communications systems that exploit the principle of bi-directional bone conduction. This technology enables users, wearing personal protective equipment (ear defenders, safety helmets, respirators), to hold normal conversations with people and devices. Mobilus' lead product is a modular clip-on communication module that retrofits to the rear of a standard safety helmet and enables the user to access voice based systems (communication, voice control) regardless of their surroundings. The aspirational concept is a product that enhances the safety and productivity of people working in the construction/industrial sector.**Innovation**This concept is intrinsically novel, while parties have integrated bone conduction into consumer products Mobilus is unique in developing an industrially focused device for the PPE sector with two-way voice comms. Furthermore, the business has developed extensive IP and knowhow in the technologies required to ensure the appropriate quality and differentiation of wanted and unwanted acoustic signals in the presence of extreme noise.**Project motivation**Mobilus has developed an advanced prototype of the Mobilus solution using investor and Innovate UK funds (project \#9045, project-end: November 2019), this hardware unit is now the focus of commercial exploitation outside the remit of this application. However, the performance of the commercially available transducer components being used is currently limiting the true potential of the larger solution. The business needs to research, design, and develop their own bi-directional bone conduction transducer in order expand commercial growth and meet user expectations which include:* Hands free full-duplex voice communication (versus Push-to-Talk interfaces)* Ear-free compatibility with industry standard PPE* Resilience to environmental noise above 100dB* Resilience to high levels of Electromagnetic interference* Acoustic power efficiency to enable a device to last for a full 14 hour shift on a single charge.The motivation for this project is to enable the company to conduct a programme of technical research and development to develop this novel bi-directional bone conduction transducer that fully exploits the benefit of the Mobilus ear and hands free industrial communication platform. This R&D will enable the business to conduct crucial applied research and testing, supported by leading industrial actors and a set of expert subcontractors with vital access to expertise and facilities needed to develop and validate the Mobilus system.