Emergency Reporting Logic Circuit for Vehicle Collision Data Retention
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Solution Overview
Problem
Conventional vehicle accident detecting apparatuses face risks of data loss and delayed reporting due to power changes or disconnections during vehicle collisions, potentially preventing emergency information from being stored and reported to a center.
Innovation Solution
An emergency reporting apparatus with a logic circuit capable of operating at low voltage and high speed, combined with a non-volatile memory, ensures that emergency signals are stored and retained, allowing for immediate and reliable reporting even during power disruptions, using a configuration that includes a CPU, non-volatile memory, logic circuit, and communication apparatus to transmit signals to an information center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If accident data is stored in non-volatile memory, then data retention is improved, but storage speed is insufficient and data may be lost during power changes
Solution Approach 1:
The patent divides the storage system into two segments: a logic circuit with volatile memory for high-speed temporary storage, and a non-volatile memory for reliable long-term storage. This segmentation allows each component to perform its optimal function - the logic circuit captures data immediately at high speed, while the non-volatile memory ensures data retention even during power changes.
Solution Approach 2:
The logic circuit performs preliminary storage of accident data in its volatile memory before the data is transferred to non-volatile memory. This preliminary action ensures that data is captured and retained immediately upon detection, preventing data loss during the transfer process or power changes that may occur afterward.
2Device complexity
If conventional storage methods are used, then system simplicity is maintained, but emergency reporting reliability deteriorates during power disruptions
Solution Approach 1:
The system is segmented into a logic circuit part with volatile memory and a separate non-volatile storage part. This segmentation adds reliability for emergency reporting while maintaining relative system simplicity through clear functional division - the logic circuit handles immediate detection and temporary storage, while the non-volatile memory ensures data persistence.
3Productivity
If data is stored quickly in volatile memory, then storage speed is improved, but data retention during power changes deteriorates
Solution Approach 1:
The logic circuit acts as an intermediary between the accident detection sensor and the non-volatile memory. It temporarily holds the accident data in its volatile memory, ensuring high-speed capture, and then transfers this data to the non-volatile memory for reliable retention. This intermediary role resolves the contradiction by bridging the speed advantage of volatile memory with the retention advantage of non-volatile memory.
Data Source
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AI summary
An emergency reporting apparatus including an emergency signal outputting part that outputs an emergency signal when a vehicle is in an emergency status and a logic circuit part that stores an emergency signal output by the emergency signal outputting part with a logic circuit. Furthermore, an emergency reporting apparatus conducts an emergency report with respect to the outside based on the emergency signal output from the emergency signal outputting part.