Wireless Audio Receiver Power Cycling for Lower Ultra-Wideband Consumption
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Solution Overview
Problem
Existing wireless audio systems using ultra-wideband communication face significant power consumption issues, which affect the stability and efficiency of audio transmission and reception.
Innovation Solution
Implementing a power management system in wireless audio devices that adjusts power levels based on beacon signals and end frame information, allowing devices to operate at reduced power during periods of inactivity or no data transmission, and using dual communication standards to handle complex wireless environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultra-wideband communication is used to receive data continuously, then communication reliability is improved, but power consumption increases significantly
Solution Approach 1:
The receiving device operates in periodic cycles, alternating between active reception mode and low-power sleep mode. The device wakes up to receive beacon signals and data packets at specific intervals, then returns to sleep mode. This periodic operation maintains communication reliability by ensuring the device is active during scheduled transmission windows while dramatically reducing average power consumption during idle periods.
Solution Approach 2:
The receiving device dynamically adjusts its power consumption level based on communication needs. During active reception periods, the device operates at full power to ensure reliable data reception. During idle periods between communications, the device transitions to low-power mode. This dynamic power adjustment resolves the contradiction by matching power consumption to actual communication requirements rather than maintaining constant high power.
2Reliability
If the communication device operates at high power level continuously, then data reception stability is improved, but battery life deteriorates
Solution Approach 1:
The device uses periodic beacon signals to synchronize wake-up cycles. The receiving device wakes up at predetermined intervals to check for incoming data, receives transmissions during these windows, then returns to sleep mode. This periodic operation pattern ensures data reception stability during active periods while extending battery life by minimizing active power consumption over the overall operational duration.
Solution Approach 2:
The device uses beacon signals as feedback to determine when to wake up and activate the receiver. Upon detecting a beacon signal or determining data is available, the device activates to receive data packets. This feedback mechanism ensures the device operates at high power only when necessary for stable data reception, thereby preserving battery life without compromising reception stability when needed.
Data Source
AI summary
A wireless audio transmitting device, a wireless audio receiving device, and a wireless audio system including the same are disclosed. The wireless receiving device of the present disclosure includes a communication device to receive an audio signal from a audio transmitting device through ultra-wireless wideband communication; and a power supply to supply power to the communication device, wherein the communication is configured to operate based on a power of a first level in response to receiving a first beacon signal, and operate based on a power of a second level lower than the first level or turn off, in response to receiving end frame information from the wireless audio transmitting device, after receiving the first beacon signal. Accordingly, power consumption during ultra-wideband communication can be reduced.