Vehicle Accident Alerting Device with Rescue Confirmation Feedback
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Solution Overview
Problem
In rugged mountain terrain, vehicle accident victims face delayed rescue due to lack of cellular service and difficulty in locating the accident site, especially at night or in bad weather, leading to potential missed alerts and unnecessary rescue requests.
Innovation Solution
An automatic alerting device equipped with a state detection section using a wheel speed sensor and lateral G sensor to determine if a vehicle is involved in an accident, triggering a sounding and light-emitting alert system to notify nearby individuals and send a rescue signal, with a rescue determination section to stop alerts once the vehicle is rescued.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If automatic alerting is activated upon accident detection, then rescue request is sent timely, but unnecessary rescue requests may be made when rescuer is already nearby
Solution Approach 1:
The system continuously monitors wheel speed and lateral G-acceleration data to detect changes in vehicle state. When an accident is detected, the alerting section activates and continues monitoring until rescue is confirmed (indicated by restoration of normal vehicle state or cessation of alert signals), creating a feedback loop that prevents both premature deactivation and unnecessary prolonged alerts
Solution Approach 2:
The system establishes predetermined thresholds for wheel speed and lateral G-acceleration that indicate accident conditions. By pre-defining these criteria, the system can automatically distinguish between normal riding variations and actual accidents, reducing false alarms while ensuring timely detection of genuine incidents
2Reliability
If rescue requests are sent to professional rescue services, then expert help is provided, but rescue time is extremely long in rugged mountain terrain
Solution Approach 1:
The alerting system segments the rescue notification into multiple channels: local alerting (siren and light for immediate nearby rescuers) and remote alerting (message to professional rescue services). This segmentation allows simultaneous activation of both professional and amateur rescue resources, addressing both rescue quality and response time requirements
3Object-affected harmful factors
If alert signals are emitted continuously, then visibility and audibility are maximized, but energy consumption increases
Solution Approach 1:
The alerting section emits sound and light signals in periodic intervals rather than continuously. The control section activates the sounding and light-emitting components for predetermined time periods, then pauses, repeating this cycle until rescue is detected. This periodic operation maintains effective alerting while significantly reducing energy consumption compared to continuous emission
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures timely notification of nearby individuals and rescue services, reducing the risk of missed alerts and unnecessary rescue requests by accurately detecting accidents and confirming rescue completion.
Implementation Method 1
a wheel speed sensor that detects a wheel speed of the vehicle
Implementation Method 2
a lateral G sensor that detects lateral G of the vehicle
Implementation Method 3
a sounding section that generates sound to the outside of the vehicle
Implementation Method 4
a light emitting section that emits light to the outside of the vehicle
Data Source
Figure 1
Figure 2
AI summary
An automatic alerting device and an automatic alerting method are provided, the automatic alerting device and the automatic alerting method capable of alerting a person near a site of a vehicle accident to occurrence of the accident when a vehicle is involved in the accident. The automatic alerting device according to the invention has: a state detection section 20 that detects a state of the vehicle; an accident determination section 31 that determines whether the vehicle is involved in the accident on the basis of the state of the vehicle detected by the state detection section 20; an alerting section 40 that alerts the outside of the vehicle; and a control section 32 that controls the alerting section 40. The alerting section 40 has: an alarm 42 that generates sound to the outside of the vehicle; and a hazard-warning lamp 43 that emits light to the outside of the vehicle. The control section 32 makes the alarm 42 generate the sound and makes the hazard-warning lamp 43 emit the light when the accident determination section 31 determines that the vehicle is involved in the accident.