Coexisting Signal Processing for Rapid User Input Response
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Solution Overview
Problem
Hazard detection systems mounted high on walls or ceilings pose challenges as users need to access a ladder or chair to silence alarms, leading to inconvenient and unsafe scenarios, and existing solutions fail to manage coexistence of signals on multiple communication networks sharing the same RF medium for rapid interaction.
Innovation Solution
A system that prioritizes network communications using wake packets with active and idle portions, allowing a second communication circuit to interact with a personal device during idle periods, enabling rapid response and minimizing collisions with primary network communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system prioritizes first network communications for a fixed period of time, then the reliability of primary network communications is improved, but the responsiveness to user input on the second network is delayed
Solution Approach 1:
The wake packet transmission period is segmented into an active portion for first network communications and an idle portion for second network communications. This temporal segmentation allows both networks to operate without interference while ensuring the primary network receives priority access during its designated time slot.
Solution Approach 2:
The system uses periodic wake packets with repeating active and idle portions to manage network access. This periodic structure ensures that the primary network consistently receives priority access while the secondary network gets regular opportunities to communicate, balancing reliability and responsiveness.
2Device complexity
If multiple communication circuits share the same RF medium, then the device complexity is reduced, but signal collisions and interference increase
Solution Approach 1:
The RF medium access is segmented into distinct time portions: active portions for first network communications and idle portions for second network communications. This time-division approach allows multiple circuits to share the same frequency without causing signal collisions, maintaining low device complexity while eliminating interference.
Solution Approach 2:
The communication circuits dynamically switch between different network modes based on the current time portion. During active portions, the first network circuit is enabled; during idle portions, the second network circuit is enabled. This dynamic switching allows efficient sharing of the RF medium without collisions.
3Ease of operation
If the system uses a single communication network, then the ease of operation is improved, but the adaptability to handle multiple communication priorities is reduced
Solution Approach 1:
The system uses a single RF medium that serves multiple functions: it carries both first network communications (for cloud connectivity and software updates) and second network communications (for local user interaction). This multi-functional approach maintains operational simplicity while providing the adaptability to handle different communication priorities through temporal multiplexing.
Data Source
AI summary
Systems and methods for enabling a system to rapidly respond to wireless instructions being transmitted by a personal device over one of several communications networks that share a common RF medium are provided. During operation of the system, certain network communications may take priority over other network communications. Rapid response communications enable a user to communicate with the system, using the personal device, in a manner that does not collide or interfere with higher priority network communications.