Vehicle Accident Detection and Alert System
An embedded safety device that detects a crash from impact and tilt sensing and sends location alerts with a cancellation window.
Project overview
An accelerometer and gyroscope mounted on the vehicle detect the deceleration and orientation change characteristic of a crash. The device then gives the rider a short window to cancel a false alarm before sending an SMS with GPS coordinates to emergency contacts.
The cancellation window is the design detail that makes this credible — a system that calls for help every time a bike falls over in a parking bay would be switched off within a week.
Problem statement
The interval between a road accident and the first emergency call is decisive for survival, and a rider travelling alone at night may be unable to call at all.
Proposed solution
Detect impact through acceleration magnitude combined with a sustained tilt, confirm across a short window to reject potholes and normal braking, then trigger an alert with location. Allow manual cancellation via a button and a buzzer countdown before the message is sent.
Key features
- Impact detection from acceleration magnitude thresholds
- Tilt confirmation to distinguish a crash from a hard brake
- GPS location capture with a fallback to the last known fix
- SMS alert to multiple emergency contacts with map coordinates
- Buzzer countdown and a cancel button for false alarms
- Event log stored on the device for later review
- Optional cloud upload of trip and incident history
Technology stack
Hardware
Firmware
Cloud (optional)
Testing
System architecture
The flow below is what goes into your architecture diagram and the corresponding chapter of the report.
- Motion sensing runs continuously with an interrupt on high acceleration
- Detection stage evaluates magnitude and orientation over a short confirmation window
- Alert state starts a countdown with an audible warning
- Cancel input aborts the sequence and logs a false positive
- On timeout the GPS fix is read and an SMS is composed with a map link
- The event is written to the local log and uploaded when connectivity permits
Expected output
- Working device that triggers on a simulated impact
- SMS alert containing live coordinates and a map link
- Threshold calibration data from controlled tests
- Incident log with sensor values at trigger time
Suitable branches, difficulty and duration
Documentation, review, demo and viva support
Documentation support
Abstract, problem statement, literature survey guidance, system architecture, ER and UML diagrams, module descriptions, test cases and screenshots — prepared in your department format.
Project review support
Delivery is split across your review calendar so review one has a design and plan, review two has working modules, and the final review has the integrated, tested system.
Demo support
A rehearsed demo path, seeded sample data, a reset script, and a recorded walkthrough kept as a backup in case something fails in the review room.
Viva preparation
A written question bank for this domain, a code walkthrough session, and practice at explaining each module in your own words — because the examiner will ask you.
Customisation options
Colleges reject duplicate topics, so most projects are adjusted before we start. These are the usual directions for this one.
- Add automatic voice call to the primary contact after the SMS
- Add helmet-wear detection as an ignition interlock
- Add rider fatigue detection from riding pattern analysis
- Add a nearest-hospital lookup in the alert message
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Enquire about the Vehicle Accident Detection and Alert System project
Send your branch, college and first review date. You will get confirmation of scope, what the customisation would look like, and a delivery plan mapped to your reviews.