Electronic device
JP2026019575APending Publication Date: 2026-02-05TOPPAN HOLDINGS INC
Patent Information
- Application Number
- JP2024121243
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2026-02-05
AI Technical Summary
Technical Problem
Existing autonomous sensors powered by secondary batteries face challenges in balancing power consumption with stored power, leading to potential battery depletion and operational failure.
Method used
An electronic device equipped with a solar cell, secondary battery, charging circuit, voltage monitoring circuit, and switching control unit dynamically adjusts sensor operation modes between normal and low-consumption modes based on battery voltage and illuminance levels to optimize power usage.
Benefits of technology
The device effectively manages power consumption and storage to prevent battery depletion, ensuring continuous sensor operation while reducing power usage during low power conditions.
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Smart Images
Figure 2026019575000001_ABST
Abstract
To provide an electronic apparatus capable of operating a sensor in consideration of balance between power consumption and storage power.SOLUTION: The electronic device includes a solar cell, a secondary battery, a charging circuit, a sensor unit, a voltage monitoring circuit, and a switching control unit. The secondary battery stores the power generated by the solar cell. The charging circuit charges the secondary battery. The sensor unit includes at least one sensor that operates based on electric power stored in the secondary battery. The voltage monitoring circuit detects an output voltage of the solar cell. The switching control unit switches an operation mode of at least one sensor of the sensor unit between a normal mode in which the sensing interval is set to a first interval and a low consumption mode in which the sensing interval is set to a second interval longer than the first interval based on the output voltage of the secondary battery detected by the voltage monitoring circuit.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
Desktop radio sensor device
JP2022067290A