PoE Smart Speaker With Internal Heating for Sealed Installations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing smart speakers require separate electrical connections for power and data, limiting their installation flexibility and efficiency, especially in environments where Ethernet-based power delivery is feasible.
Innovation Solution
A smart speaker design that utilizes a power over Ethernet (PoE) system to receive both power and audio data through an Ethernet cable, incorporating a specialized power supply subsystem to manage and convert Ethernet power for a microprocessor and digital audio amplifier, and includes heater resistors to maintain optimal operating temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate electrical connections are used for power and data, then reliable power supply is ensured, but installation flexibility and efficiency are limited
Solution Approach 1:
The patent combines power delivery and data transmission into a single Ethernet cable using Power over Ethernet (PoE) technology. The Ethernet cable simultaneously carries both electrical power and audio data signals, eliminating the need for separate electrical connections and reducing installation complexity while improving flexibility
2Adaptability or versatility
If PoE power delivery is used, then installation flexibility is improved, but power management complexity increases
Solution Approach 1:
The smart speaker includes an integrated power management subsystem that automatically detects and manages PoE power delivery without requiring external power management infrastructure. The device self-regulates power reception, conversion, and distribution internally, eliminating the need for complex external power management systems
3Reliability
If heater resistors are added to maintain temperature, then operational reliability in harsh environments is improved, but energy consumption increases
Solution Approach 1:
The heater resistors are controlled to operate periodically rather than continuously, activating only when temperature sensors detect that the internal temperature has dropped below the optimal operating range. This periodic heating maintains reliability in harsh environments while minimizing unnecessary energy consumption during normal operating conditions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables flexible installation without electrical receptacles, supports high-resolution audio playback, and maintains operational temperature in harsh environments, while maximizing energy efficiency and sound quality.
Implementation Method 1
at least one heater resistor in the housing powered by the power supply subsystem. The at least one heater resistor is controlled by the microprocessor subsystem to automatically heat the interior of the housing when temperature inside the housing falls below a given temperature
Data Source
AI summary
A networked speaker device includes a sealed housing and an Ethernet port in the housing for receiving power and audio data from a network router via an Ethernet cable. A power supply subsystem in the housing manages the power received at the Ethernet port. A microprocessor subsystem, powered by the power supply subsystem, receives and processes the audio data to generate output audio signals. A digital audio amplifier, powered by the power supply subsystem, amplifies the output audio signals to drive a speaker driver to render an audio output. The device also includes at least one heater resistor in the housing powered by the power supply subsystem. The at least one heater resistor is controlled by the microprocessor subsystem to automatically heat the interior of the housing when temperature inside the housing falls below a given temperature.