Electronic Label Power Boosting for Low-Battery Update Reliability
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Solution Overview
Problem
Electronic shelf labels face issues with power supply failures during updates due to insufficient battery power, and frequent updates strain the battery life, making it difficult to maintain proper display of product information over five years as intended.
Innovation Solution
Incorporating a booster circuit and control unit in the electronic label to monitor power supply voltage and remaining power, boosting the voltage when it falls below a threshold, and sending alarms for low power conditions, along with a feedback mechanism to track usage status and calculate expected remaining power for timely replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the update frequency of electronic price labels increases to meet widespread use scenarios, then the product information display timeliness is improved, but the battery service life deteriorates
Solution Approach 1:
The system performs preliminary actions by monitoring battery voltage and remaining power before critical depletion occurs. The control unit continuously checks power status and proactively manages update operations to prevent battery exhaustion, allowing the system to maintain high update frequencies without compromising the five-year service life goal.
Solution Approach 2:
The patent implements feedback mechanisms where the control unit monitors battery voltage and remaining power in real-time, then adjusts update frequency and timing accordingly. This closed-loop control ensures that increased update demands do not exceed the battery's power capacity, resolving the contradiction between productivity and duration.
2Use of energy by moving object
If the battery power is insufficient during the updating process, then the power consumption is reduced, but the update reliability deteriorates
Solution Approach 1:
Before executing an update operation, the control unit performs preliminary checks of battery voltage and remaining power. Only when sufficient power is available does the system proceed with updates, ensuring update reliability while maintaining efficient power consumption by avoiding unnecessary update attempts.
Solution Approach 2:
The system takes preliminary anti-action by preventing update operations when battery power is insufficient. The control unit anticipates potential power failures and blocks update execution before they occur, thereby maintaining both low power consumption and high update reliability.
3Stability of the object's composition
If a booster circuit is added to boost power supply voltage, then the power supply stability is improved, but the device complexity increases
Solution Approach 1:
The booster circuit acts as an intermediary component between the battery and the electronic paper display system. It mediates power supply instability by converting low battery voltage into sufficient operating voltage, thereby improving power supply stability while adding minimal complexity through a dedicated voltage boosting module.
Solution Approach 2:
The booster circuit changes the voltage parameter of the power supply, transforming insufficient battery voltage into adequate operating voltage. This parameter transformation improves power supply stability without requiring fundamental redesign of the entire power system, thus limiting the increase in device complexity.
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 ensures the electronic label functions properly at lower power levels, prolongs battery life, and provides a feedback mechanism to prevent update failures, improving power utilization efficiency and maintaining accurate product information display.
Implementation Method 1
the first power supply unit includes a first booster circuit, and the first control unit is configured to turn on the first booster circuit to boost the power supply voltage
Data Source
AI summary
An electronic label is provided, including: a first power supply unit, which is configured to supply power to the electronic label; a first control unit, which is configured to monitor at least one of a power supply voltage and a remaining power of the first power supply unit. The first power supply unit includes a first booster circuit, and is configured to turn on the first booster circuit to boost the power supply voltage when at least one of the following conditions is met: the power supply voltage is lower than a first preset voltage threshold; and, the remaining power is lower than a first preset power threshold. The invention also provides a method for monitoring an electronic label, an electronic label monitoring device, and an electronic label system.