Ambulatory Medical Device Telemetry Receiver Power Management
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Solution Overview
Problem
Ambulatory medical devices (AMDs) face challenges in efficiently managing telemetry power modes, leading to suboptimal communication and potential battery life issues.
Innovation Solution
The implementation of a control circuit in AMDs that dynamically switches between active and inactive telemetry power modes based on the detection of communication signals and timeout timers, allowing for customizable telemetry power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver is maintained in active mode continuously, then communication signal detection capability is improved, but power consumption increases and battery life decreases
Solution Approach 1:
The receiver alternates between active and inactive modes using timeout timers that expire after predetermined durations. When no communication signal is detected during the active mode, the receiver transitions to inactive mode and remains there until a timeout timer expires or a signal is detected, creating a periodic on-off pattern that reduces power consumption while maintaining detection capability.
Solution Approach 2:
The receiver's operational state is dynamically adjusted based on detected communication signals and timeout timer status. The system transitions from static continuous operation to dynamic state changes, allowing the receiver to adapt its power consumption level according to actual communication needs and environmental conditions.
2Use of energy by moving object
If the receiver is set to inactive mode to save power, then power consumption decreases and battery life extends, but communication signal detection capability deteriorates
Solution Approach 1:
The system performs preliminary actions by setting timeout timers before transitioning the receiver to inactive mode. These timers are configured to expire after predetermined durations, ensuring that the receiver will automatically return to active mode if no communication signal is detected, thereby maintaining detection capability while saving power during inactive periods.
Solution Approach 2:
The system uses feedback from communication signal detection to control receiver mode transitions. When a communication signal is detected during active mode, the timeout timer is reset or extended, providing feedback that maintains the receiver in active mode. This feedback mechanism ensures reliable detection while optimizing power consumption based on actual communication conditions.
3Reliability
If timeout timer duration is extended to improve signal detection reliability, then communication reliability is improved, but time efficiency decreases and battery life is reduced
Solution Approach 1:
The timeout timer duration is configured as a可调 parameter that can be optimized for different communication scenarios. By adjusting the timeout duration parameter, the system balances between maintaining reliable signal detection (longer timeout) and conserving battery life (shorter timeout), allowing parameter optimization based on specific application requirements.
4Adaptability or versatility
If the receiver remains in active mode to ensure continuous communication, then communication availability is improved, but power consumption increases and battery life decreases
Solution Approach 1:
The receiver implements periodic active and inactive cycles using timeout timers, ensuring continuous communication availability through systematic wake-up intervals while significantly reducing overall power consumption compared to continuous operation. This periodic pattern maintains adaptability for communication while extending battery life.
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
This solution enhances the efficiency of telemetry communication in AMDs by optimizing power usage, extending battery life, and enabling more precise customization of device settings according to individual patient needs.
Implementation Method 1
a coil antenna configured to receive a communication signal using mutual inductance
Data Source
AI summary
Systems and methods are disclosed to an ambulatory medical device comprising a coil antenna, a transceiver circuit, and a control circuit. The transceiver circuit includes a receiver to detect a communication signal received by the coil antenna. The control circuit includes a timeout timer and is configured to set the receiver to an active mode, set the receiver to an inactive mode when the timeout timer expires after a first timeout duration and the communication signal is not detected by the receiver, maintain the receiver in the active mode when the communication signal is detected by the receiver before the timeout timer expires, decode a command in the communication signal to set the timeout timer to a second timeout duration, and set the receiver to the inactive mode when the timeout timer expires after the second timeout duration and the communication signal is not detected.