Ultrasonic Escape System for Sinking Cars
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Solution Overview
Problem
Existing escape systems for sinking cars face delays in transmitting distress signals due to the buoyancy effect and hydraulic pressure differences, which can lead to missed rescue opportunities.
Innovation Solution
An ultrasonic signal transmission unit is mounted on the car to emit and detect ultrasonic waves, utilizing the increased speed of waves in water to quickly generate and transmit a car sinking signal, facilitating rapid rescue efforts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a water gauge and airbag system are used to detect water level and inflate airbags, then the car sinking can be detected and airbags can be inflated, but the signal transmission is delayed due to buoyancy effect and spring tension, causing missed rescue opportunities
Solution Approach 1:
The patent replaces the mechanical water gauge and spring-based airbag system with an ultrasonic detection system. The ultrasonic sensor detects water proximity by measuring ultrasonic wave reflection, eliminating the mechanical buoyancy effect and spring tension delays. This substitution of mechanical detection with acoustic wave-based detection enables immediate signal transmission when water contact is detected, resolving the time delay contradiction.
Solution Approach 2:
The patent changes the detection parameter from mechanical water level measurement to ultrasonic wave speed measurement. By monitoring changes in ultrasonic wave propagation characteristics (speed, reflection) when water is present, the system achieves faster and more reliable detection without being affected by buoyancy forces or spring tension, thereby reducing signal transmission time while maintaining rescue reliability.
2Reliability
If automatic windows and seat belts are used in the escape system, then passenger safety is improved, but the system complexity increases
Solution Approach 1:
The patent integrates multiple safety functions (window control, seat belt release, airbag deployment) into a single ultrasonic detection system. The same ultrasonic sensor and control unit that detect water proximity also trigger all escape mechanisms, eliminating the need for separate detection systems for each function. This multi-functionality approach maintains high passenger safety while reducing overall system complexity compared to having independent systems for each safety feature.
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
The ultrasonic component effectively accelerates signal transmission by detecting changes in ultrasonic wave speed as it penetrates water, enabling timely activation of emergency responses and reducing casualties.
Implementation Method 1
the change in the speed of the ultrasonic wave can be detected effectively
Implementation Method 2
an ultrasonic wave penetrates a medium, the ultrasonic wave will be accelerated by the increase in the Stiffness of that medium
Data Source
AI summary
An escape system for a sinking car and an ultrasonic component thereof are disclosed. The ultrasonic component includes a housing and an ultrasonic module. The escape system for a sinking car includes an ultrasonic component and a motherboard. An ultrasonic signal transmission unit of the escape system for a sinking car and an ultrasonic component thereof is installed on a car to emit an ultrasonic wave. After the car fell into water, by the characteristic that when an ultrasonic wave passes through a medium, the change in the speed of the ultrasonic wave can be detected effectively because the ultrasonic wave is accelerated due to the increase in the Stiffness of that medium (such as liquid), the car sinking signal can be received and transmitted quickly, thereby actually taking the opportunities of rescue to reduce casualties.