Notification Device Mode Switching for Power and Safety
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Solution Overview
Problem
Existing notification devices face challenges in balancing power consumption with the need to transmit necessary reminder notifications and position information to external devices.
Innovation Solution
A notification device with a control unit that switches between two modes: a first mode where position information is transmitted in a short cycle and reminder notifications are sent when conditions are met, and a second mode where position information is transmitted in a longer cycle and reminder notifications are turned off, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If position information is transmitted in a short cycle and reminder notifications are sent frequently, then user safety monitoring is improved, but power consumption increases
Solution Approach 1:
The notification device dynamically switches between first mode (frequent transmission with reminder notifications) and second mode (infrequent transmission without reminder notifications) based on operational conditions. This dynamic adaptation allows the device to maintain reliable safety monitoring when needed while reducing power consumption during periods when continuous monitoring is less critical.
Solution Approach 2:
The device implements periodic position information transmission with different cycles for different modes. In the first mode, position information is transmitted in a first cycle with frequent reminder notifications. In the second mode, position information is transmitted in a second cycle that is longer than the first cycle, and reminder notification emission is turned off. This periodic action with variable periods resolves the contradiction between monitoring reliability and power consumption.
2Reliability
If the notification device operates in high-power mode continuously, then notification reliability is improved, but battery life decreases
Solution Approach 1:
The control unit dynamically adjusts the operational mode based on whether a call operation is detected. When call operations are detected, the device switches to the first mode with frequent position transmission and active reminder notifications to ensure notification reliability. When no call operations are detected, the device switches to the second mode with extended transmission cycles and disabled reminder notifications, thereby preserving battery life.
Solution Approach 2:
The device changes operational parameters (transmission cycle duration and reminder notification emission status) based on detected call operations. This parameter adjustment allows the device to maintain high notification reliability during periods of detected call activity while extending battery life during periods of normal operation without detected calls.
3Use of energy by moving object
If position information transmission cycle is extended, then power consumption is reduced, but position tracking accuracy decreases
Solution Approach 1:
The device dynamically adjusts the position information transmission cycle based on operational context. During normal operation without detected call operations, the device uses the second mode with longer transmission cycles to reduce power consumption. When call operations are detected, the device switches to the first mode with shorter transmission cycles to maintain position tracking accuracy for safety monitoring.
Solution Approach 2:
The device uses feedback from call operation detection to adjust transmission cycle duration. The detection of call operations serves as feedback that triggers a switch from the energy-saving second mode (longer cycles) to the accuracy-oriented first mode (shorter cycles), ensuring that position tracking precision is maintained when safety monitoring is most critical.
Data Source
AI summary
A notification device carried by a user includes a control unit capable of switching between the first mode and the second mode. The first mode is a mode in which the position information indicating the position of the notification device is transmitted to the predetermined external device in the first cycle, and the reminding notification is transmitted when the transmission condition of the reminding notification that prompts the user to perform the safety action is satisfied. The second mode is a mode in which position data is transmitted to a predetermined external device in a second cycle longer than the first cycle, and transmission of a reminder notification is made OFF.