On-Vehicle Emergency Notification Device Power Management
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Solution Overview
Problem
Conventional on-vehicle emergency notification devices consume auxiliary battery power due to dark current during transportation when switched from the main battery, as the connection with the main battery is cut during factory-to-dealer transfer.
Innovation Solution
The device is configured to prohibit switching to the auxiliary battery during the factory mode, allowing registration of vehicle information, and only permits switching when shifted to market mode or upon receiving a receipt signal from the information center, thus preventing unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connection with the main battery is cut during transportation from factory to dealer, then the device can be transported safely, but the auxiliary battery is consumed due to dark current
Solution Approach 1:
The patent implements dynamic switching between factory mode and market mode based on the operational state. In factory mode, the system prohibits switching to auxiliary battery to prevent dark current consumption during transportation. In market mode, the system allows automatic switching when main battery voltage drops. This dynamic mode change resolves the contradiction by adapting the power supply behavior to the specific operational context.
Solution Approach 2:
The patent changes the parameter of battery switching permission based on the operational mode. By introducing a mode parameter (factory mode vs. market mode), the system controls whether auxiliary battery switching is permitted. This parameter change allows the system to maintain safe transportation conditions while preventing unnecessary power consumption during non-emergency periods.
2Reliability
If the device allows automatic switching to auxiliary battery when main battery voltage drops, then power supply reliability is improved during emergencies, but unnecessary switching occurs during transportation causing power waste
Solution Approach 1:
The system dynamically adjusts the switching behavior based on the operational mode. In factory mode, switching is prohibited regardless of main battery voltage. In market mode, switching is enabled when voltage drops below a threshold. This dynamic control ensures power supply reliability during emergencies while preventing energy loss during transportation.
Solution Approach 2:
The patent applies preliminary anti-action by prohibiting auxiliary battery switching in factory mode before transportation begins. This pre-emptive measure prevents the harmful effect of dark current consumption during transportation. Once the vehicle reaches the dealer and the mode is changed to market mode, the switching permission is restored for emergency situations.
3Adaptability or versatility
If the device is in factory mode allowing registration of vehicle information, then configurability is improved, but the auxiliary battery switching cannot be controlled to prevent power consumption
Solution Approach 1:
The patent couples the factory mode (which enables information registration) with a prohibition on auxiliary battery switching. This dynamic configuration allows the system to be adaptable during setup while simultaneously preventing power consumption during transportation. The mode parameter serves dual purposes: enabling configurability and controlling power supply behavior.
Data Source
AI summary
The present invention relates to an on-vehicle emergency notification device The notification device is configured to allow a vehicle body number and an emergency notification phone number to be registered therein in the form of a set, so as to enable the notification to the emergency call center, wherein the notification device is configured such that: during execution of a factory mode for performing the registration of the vehicle body number and the emergency notification phone number, rewriting of the vehicle body number is permitted; after the registration of the vehicle body number and the emergency notification phone number is completed and then the factory mode is shifted to a market mode, the rewriting of the vehicle body number is prohibited; and, when it is in the factory mode, the switching to an auxiliary battery is prohibited.