Distributed Microphone Smart Home Application for AMP IoT Devices
Explore the application of distributed microphones in smart homes for AMP IoT devices, focusing on enabling natural language interaction beyond wake-word models. The presentation discusses the use case, features, and benefits of utilizing distributed microphones to enhance smart home experiences.
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July 2023 doc.: IEEE 802.11-23/1192r0 Distributed Microphone Smart Home Application for AMP IoT devices Date: 2023-07-10 Authors: Name Patricia Bower Affiliations Address HaiLa Technologies Inc Phone email pbower@haila.io 6833 Ave de L p e, Montr al, QC, Canada, H3N 2C7 6833 Ave de L p e, Montr al, QC, Canada, H3N 2C7 vytas@haila.io Vytas Kezys HaiLa Technologies Inc Submission Slide 1 Patricia Bower/Vytas Kezys , HaiLa Technologies Inc.
July 2023 doc.: IEEE 802.11-23/1192r0 Abstract The purpose of this presentation is to outline distributed microphones for smart homes as a key use case driving specific requirements for AMP IoT devices in future. Use cases in smart manufacturing may also drive similar requirements Submission Slide 2 Patricia Bower/Vytas Kezys , HaiLa Technologies Inc.
July 2023 doc.: IEEE 802.11-23/1192r0 AMP SG focus review: Use case summary (802.11-23/1005r0) Use Case 3: Smart Home Asset management, environment monitoring, and home security In addition to the above, it is expected that smart homes with home hub/gateway devices will support distributed microphones in future to support continuous natural language interaction and to move beyond wake-word model Patricia Bower/Vytas Kezys, HaiLa Technologies Inc Submission Slide 3
July 2023 doc.: IEEE 802.11-23/1192r0 Smart Home: Distributed microphone Microphone (AMP device) Home hub (AMP-supporting STA) Second floor AMP-supporting AP/STA (potential joint transmission) First floor Submission Slide 4 Patricia Bower/Vytas Kezys, HaiLa Technologies Inc
July 2023 doc.: IEEE 802.11-23/1192r0 Distributed microphone use case (1/2) Description Smart home hub STAs will migrate towards use of distributed microphones to enable hub/gateway voice-activation from anywhere in the home AMP use case classification is Sensor Expected to be a high-volume AMP device application Features Extremely low power, ambient microphone (= AMP IoT device) Voice detection at AMP microphone Supporting compressed voice data (very low bit rate) Processing at home hub/gateway and beyond Bursty data Leverages fixed AMP-supporting STA infrastructure (e.g., smart light bulbs) May allow for locating user acoustically for context Can allow for noise cancellation Submission Slide 5 Patricia Bower/Vytas Kezys, HaiLa Technologies Inc
July 2023 doc.: IEEE 802.11-23/1192r0 Distributed microphone use case (2/2) Requirements Product-life battery or battery-free (energy harvesting) Density of distribution: up to 1/m2 Infrastructure: fixed AMP-supporting STAs Type 1 AMP STA Latency: <100ms Payload: 4kbps (cumulative higher over longer voice detection cycles, e.g., 100msec) Bursts of high duty cycle of transmit for longer periods of voice Submission Slide 6 Patricia Bower/Vytas Kezys, HaiLa Technologies Inc
July 2023 doc.: IEEE 802.11-23/1192r0 Addressing distributed microphone AMP device constraints Problem statement The smart home distributed microphone use case places additional constraints on AMP device specifications namely a combination of high data rates (burst), high transmit duty cycle, and extreme longevity AMP device enabling technologies Comparative battery life modelling of both active transmit and passive backscatter of 1Mbps DSSS uplink against different sensor update intervals was performed At sensor sampling rate of >3/sec, passive backscatter uplink is shown to support both high duty cycle and significantly extended battery life AMP device battery life modelling relative to sensor sample interval: Backscatter vs Active Transmit Submission Slide 7 Patricia Bower/Vytas Kezys, HaiLa Technologies Inc
July 2023 doc.: IEEE 802.11-23/1192r0 Summary Future Smart Home application for distributed microphone requires both extreme longevity (low power) and high duty cycle AMP device This application may drive a requirement for energy harvested power source in the AMP IoT devices Propose to include these requirements as part of (or a subset of) UC3 Smart Home Use cases that would be part of UC1 Smart Manufacturing may also have similar constraints for combined high data rate, high duty cycle, and extreme longevity Submission Slide 8 Patricia Bower/Vytas Kezys, HaiLa Technologies Inc.
July 2023 doc.: IEEE 802.11-23/1192r0 References 1. IEEE 802.11-23/1005r0, Discussion on Requirements for AMP Use Cases Submission Slide 9 Patricia Bower/Vytas Kezys, HaiLa Technologies Inc
