Multi-Source Wake-Up Circuit for Low-Cost Signal Identification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wake-up circuits for vehicle-mounted T-BOX systems are costly due to the large number of comparators required for single wake-up sources and fail to detect multiple wake-up sources effectively.
Innovation Solution
A wake-up circuit design that connects multiple wake-up sources to a single main control module, utilizing a wake-up module to detect and forward signals, and a main control module to receive and identify signals from multiple sources, reducing costs and enabling detection of multiple wake-up sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple comparators are used for single wake-up source detection, then detection accuracy is improved, but circuit cost increases
Solution Approach 1:
The patent merges multiple wake-up source detections into a single main control module by using a wake-up module that can identify and process signals from multiple sources (button, voice, touch) through unified comparison circuits, thereby reducing the total number of comparators needed while maintaining detection accuracy
Solution Approach 2:
The wake-up module is designed with multi-functionality to handle various wake-up sources (button pressing, voice commands, touch input) using the same comparison circuitry, allowing one set of comparators to serve multiple detection purposes instead of requiring separate comparators for each source
2Reliability
If multiple comparators are used for each wake-up source, then detection capability is improved, but the circuit cannot handle multiple wake-up sources simultaneously
Solution Approach 1:
The wake-up module implements multi-functionality by designing a unified detection mechanism that can identify and differentiate between multiple wake-up sources (button, voice, touch) using the same comparison circuits, enabling the system to handle various wake-up scenarios without requiring separate dedicated comparators for each source
Solution Approach 2:
The wake-up module acts as an intermediary between multiple wake-up sources and the main control module, receiving and identifying signals from different sources (button pressing, voice commands, touch input) before forwarding them to the main control module for further processing
3Measurement precision
If multiple wake-up sources are connected to separate control modules, then signal identification accuracy is improved, but system cost increases
Solution Approach 1:
The patent merges multiple wake-up source connections into a single main control module by implementing a wake-up module that can identify and differentiate between various wake-up sources through unified comparison circuits, thereby reducing the total number of control modules needed while maintaining signal identification accuracy
Solution Approach 2:
The wake-up module serves as an intermediary that receives signals from multiple wake-up sources, identifies the specific source through comparison operations, and forwards the identified signal to the main control module, eliminating the need for separate control modules for each wake-up source
Data Source
AI summary
A wake-up circuit, a wake-up method and a non-transitory computer-readable storage medium are disclosed. The wake-up circuit includes a wake-up module (11) and a main control module (12). The wake-up module (11) is connected to a wake-up source and is configured to detect a wake-up signal sent by the wake-up source, and to forward the wake-up signal to the main control module (12), one or more wake-up sources being provided. The main control module (12) is connected to the wake-up module (11) and is configured to receive the forwarded wake-up signal, one main control modules (12) being provided.