Sensor Broadcast Mode for Unpaired Hub Alert Reliability
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Solution Overview
Problem
Sensor networks face challenges in ensuring correct pairing between sensors and hub systems, leading to potential miscommunication during urgent environmental conditions, especially in cost-constrained and battery-powered devices with limited functionality, where power consumption and design constraints restrict advanced communication capabilities.
Innovation Solution
Implementing a broadcast mode communication network that allows sensors to send critical messages to any available device on the network, even if pairing information is incorrect, using existing multicast mechanisms or modified networking standards, enabling one-to-many message transmission to ensure alerts are raised regardless of pairing status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional paired communication mode is used between sensors and hub, then network security and data integrity are improved, but communication reliability during pairing failures or hub unavailability deteriorates
Solution Approach 1:
The patent introduces a intermediary broadcast communication mechanism that acts as a fallback when the primary paired communication path fails. Sensors can broadcast alerts to any available device on the network when the designated hub is unreachable, ensuring critical information is not lost due to pairing failures or hub unavailability.
Solution Approach 2:
The communication mode dynamically switches between paired mode (for normal operation) and broadcast mode (for failure scenarios). The system adapts its communication strategy based on the availability and responsiveness of the paired hub, transitioning to alternative communication paths when needed.
2Reliability
If sensors are equipped with advanced communication capabilities, then communication flexibility and alert reliability are improved, but power consumption increases
Solution Approach 1:
The sensor employs periodic communication only when necessary (upon detecting critical events) rather than continuous communication. The low-power wireless transmitter activates selectively to send broadcast alerts when events occur, maintaining reliability while minimizing energy consumption during normal operation.
Solution Approach 2:
The patent uses a simple, low-cost, low-power wireless transmitter designed for minimal functionality - only to send broadcast alerts when needed. This simplified communication component consumes significantly less power than advanced continuous communication systems while providing sufficient reliability for critical event notification.
3Reliability
If pairing verification is strictly enforced, then network security is improved, but communication speed and alert response time deteriorate
Solution Approach 1:
The sensor performs pairing verification in advance during normal operation to establish secure communication channels. When a critical event occurs, the pre-verified pairing information allows for immediate broadcast transmission without time-consuming verification delays, thus maintaining both security and speed.
Solution Approach 2:
The system dynamically adjusts its verification approach - using pre-established pairing for normal operations and switching to trust-based broadcast mode for critical events. This dynamic behavior ensures security is maintained during setup while enabling rapid response during emergencies.
Data Source
AI summary
Methods are described for raising an alarm from an sensor device that is not paired with a sensor network using a broadcast mode. Embodiments at a sensor device include determining that data from a sensor of a sensor device indicates an alarm state, determining that the sensor device is not paired with a hub; and sending a broadcast message to a network. Embodiments at a hub for a sensor network include receiving an alarm message from a sensor device in a broadcast mode wherein the sensor device is not paired the hub; forwarding the alarm message to an alert service; receiving confirmation of the authenticity of alarm message; and generate an alert.