Solid-State Register Interrupt for AMR Alarm Response
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional utility meters rely on periodic polling for status updates, which is inadequate for immediate notification of critical alarm conditions such as reverse flow or tampering, leading to potential delays in addressing issues like fluid contamination or theft.
Innovation Solution
A solid-state register with a microcontroller that detects alarm conditions and signals a communication device through a 3-wire AMR interface to initiate an immediate read of status information, allowing for near real-time transmission of alarm data when the interface is idle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If periodic polling is used to read usage data and status information, then the system structure is simple, but the response time for alarm conditions is delayed
Solution Approach 1:
The patent applies preliminary action by implementing an interrupt mechanism that proactively signals the communication device when alarm conditions occur, rather than waiting for the next periodic poll. The solid-state register monitors status flags continuously and generates an interrupt signal immediately when critical conditions such as reverse flow or tampering are detected, ensuring rapid response without requiring complex continuous polling structures.
2Reliability
If the solid-state register continuously monitors status flags, then the response to alarm conditions is immediate, but the energy consumption increases
Solution Approach 1:
The patent applies periodic action by having the solid-state register continuously monitor status flags for changes rather than maintaining continuous active communication. The register checks status flags at regular intervals and only initiates communication when a state change is detected, balancing reliable alarm detection with reduced energy consumption compared to continuous active polling or transmission.
3Device complexity
If a 3-wire AMR interface is used for communication, then the device complexity is reduced, but the data transmission capability is limited
Solution Approach 1:
The patent applies the taking out principle by extracting only the essential communication functions needed for alarm notification through the 3-wire AMR interface. Rather than implementing full-duplex bidirectional communication, the system uses the minimal 3-wire interface with unidirectional interrupt signaling for alarm conditions, removing unnecessary communication complexity while maintaining sufficient data transmission capability for critical alarm information.
Data Source
AI summary
Methods, computer-readable storage media, and systems for signaling a communication device through an AMR interface for an immediate read of status information. It is determined whether the AMR interface is in an idle state, and if the interface is idle, the communication device is signaled to initiate retrieval of the status information through a data line of the AMR interface. Once the communication device initiates communication through the AMR interface, the data line is released.