Radio Module Energy Management via Periodic Power Cycling

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Solution Overview

Problem

Battery-operated peripherals in anti-intrusion, home automation, and temperature management systems face frequent battery replacements due to significant energy consumption by radio modules for communication, disrupting residents and reducing battery longevity.

Innovation Solution

A method and system that optimize energy consumption by spacing out radio module activations and maintaining power supply only during necessary data packet receptions, using a repeated binary preamble sequence to enhance detection and synchronization, thereby reducing unnecessary energy use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the radio module is activated frequently to ensure communication reliability, then the communication reliability is improved, but the energy consumption increases and battery lifespan decreases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The radio module operates in periodic cycles, alternating between active reception states and low-power sleep states. The device wakes up at predetermined intervals to check for messages, then returns to sleep mode, creating a periodic activation pattern that balances communication reliability with energy conservation.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The device performs preliminary actions by checking for messages at scheduled intervals before fully activating the radio module. This preliminary check allows the system to determine whether full activation is necessary, preventing unnecessary energy consumption while maintaining communication reliability.

Inventive Principle:

Principle #10Preliminary action

2Loss of time

If the radio module wakes up frequently to check for messages, then the message reception timeliness is improved, but the power consumption increases

Engineering Contradiction:

Improvemessage reception timelinessVSAvoidpower consumption

Core Design Contradiction:

Loss of timeVSUse of energy by stationary object

Solution Approach 1:

The radio module implements periodic wake-up cycles where it activates at predetermined intervals to check for messages, then returns to sleep mode. This periodic action ensures timely message reception while minimizing power consumption by keeping the module dormant between check-ins.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts its activation pattern based on communication needs. The radio module transitions between active and sleep states based on whether messages are detected, creating a dynamic power management strategy that responds to actual communication requirements rather than using fixed frequent wake-ups.

Inventive Principle:

Principle #15Dynamics

3Speed

If the power supply to the radio module is maintained continuously, then the communication responsiveness is improved, but the battery lifespan decreases

Engineering Contradiction:

Improvecommunication responsivenessVSAvoidbattery lifespan

Core Design Contradiction:

SpeedVSDuration of action of stationary object

Solution Approach 1:

Power supply to the radio module is maintained periodically rather than continuously. The module wakes up at predetermined intervals to check for messages and returns to sleep mode, creating a periodic power supply pattern that extends battery lifespan while maintaining adequate communication responsiveness.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The radio module autonomously manages its own power supply by implementing wake-up cycles and sleep modes without external intervention. The device self-regulates its activation based on predetermined intervals and message detection, extending battery life while maintaining communication functionality.

Inventive Principle:

Principle #25Self-service

Data Source

PatentEP3692748B1Method for managing energy consumed by a radio module

Publication Date: 2023.04.12 DELTA DORE SA

Figure 1~2
Figure 3a
Figure 3b

AI summary

The invention relates to a method and a system for managing energy consumed by a radio module included in a peripheral device, the peripheral device being intended to be connected to a centralised device and to receive data frames from the centralised device, the data frames being formed by a preamble and at least one data packet. The peripheral device: - detects (E300) when the peripheral device is set to a mode called connection mode; - supplies (E303) the reception line of the radio module with electrical energy with a periodicity that is equal to a first duration during a second predetermined duration; - maintains (E304) the electrical power supply of the radio module if a detection of part of the preamble is realised and interrupts (E308) the electrical power supply of the reception line with a periodicity equal to a multiple that is greater than or equal to two times the first duration; - interrupts (E301) the electrical power supply of the radio module if a non-detection of part of the preamble is not realised during the second predetermined duration with a periodicity equal to the first duration.