Dual Alert Replacement Reminder for Disaster Preparedness Alarms
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Solution Overview
Problem
Users often forget to replace disaster protection devices such as fire alarms after the recommended replacement time, leading to potential failure when needed.
Innovation Solution
A disaster protection device with an auxiliary alert unit that displays a flashing light when the replacement time is reached, followed by a main alert unit that emits a sound when the user interacts with the device, ensuring the replacement is not forgotten.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single alarm sound is emitted when replacement time is reached, then the device structure is simple, but the user may forget to replace the device
Solution Approach 1:
The alert system is segmented into two distinct components: an auxiliary alert unit that emits a first alarm sound when replacement time is reached, and a main alert unit that emits a second alarm sound when the user operates the device. This segmentation ensures that the replacement reminder is reinforced through multiple alert phases, preventing user forgetfulness while maintaining clear functional differentiation between the alert types.
Solution Approach 2:
The system implements feedback by requiring user operation to trigger the main alert unit's second alarm sound. This feedback mechanism ensures the user is actively engaged with the device, and the second alarm sound serves as confirmation that the user has noticed and is responding to the replacement reminder, thereby improving reliability of the reminder function.
2Reliability
If the alarm sound is emitted continuously, then the user is alerted effectively, but energy consumption increases
Solution Approach 1:
The auxiliary alert unit emits the first alarm sound periodically when replacement time is reached, rather than continuously. This periodic action maintains effective user notification while significantly reducing energy consumption compared to continuous emission. The main alert unit's second alarm sound is triggered only on user operation, further optimizing energy usage.
3Reliability
If only one type of alert is used, then the device is simple to operate, but user awareness of replacement need is insufficient
Solution Approach 1:
The alert system is segmented into two distinct components: an auxiliary alert unit that emits a first alarm sound when replacement time is reached, and a main alert unit that emits a second alarm sound when the user operates the device. This segmentation ensures that the replacement reminder is reinforced through multiple alert phases, preventing user forgetfulness while maintaining clear functional differentiation between the alert types.
Solution Approach 2:
Different alert sounds are associated with different operational contexts: the first alarm sound from the auxiliary alert unit is specifically for replacement reminders, while the second alarm sound from the main alert unit is triggered by user operation. This local quality differentiation ensures users understand the specific nature of each alert, improving their awareness of replacement needs without complicating the overall device operation.
Data Source
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AI summary
An object of the present disclosure is to suppress replacement from being forgotten by a user. A disaster protection device (1) is configured to perform alert operation relating to disaster protection. The disaster protection device (1) includes an auxiliary alert unit (XI), an operating unit (3), and a main alert unit (X2). The auxiliary alert unit (X1) is configured to, when the disaster protection device (1) reaches a time for replacement, execute an auxiliary alert relating to the replacement. The operating unit (3) is configured to receive an operation. The main alert unit (X2) is configured to, when the operating unit (3) receives the operation while the auxiliary alert unit (X1) executes the auxiliary alert, execute a main alert relating to the replacement. The auxiliary alert unit (X1) is configured to, when a prescribed condition is satisfied after the main alert is started, execute the auxiliary alert at least one more time.