Pneumatic Dummy Object for Child Presence Detection Testing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current dummy objects for testing child presence detection systems in vehicles are complex, contain unnecessary electrical components, and are not suitable for simulating the breathing movements of children, making it difficult to adequately test these systems, especially when the child is asleep and only chest and abdominal movements caused by breathing are detectable.
Innovation Solution
A dummy object with elastic reset elements, such as expanders or springs, and a pneumatic system using inflatable balloons to simulate breathing movements, minimizing electrical components and allowing for flexible operation and adjustment of breathing parameters, while avoiding metallic components that could interfere with radar sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex dummy objects with actuators are used to simulate breathing movements, then the ability to test CPD systems is improved, but the device complexity and number of electrical components increase
Solution Approach 1:
The patent extracts and removes electrical components and actuators from the dummy object, replacing them with a simple pneumatic system using inflatable balloons that can be controlled externally without electronic interference
Solution Approach 2:
The patent uses a pneumatic system with inflatable balloons to simulate breathing movements, avoiding electrical actuators and reducing device complexity while maintaining testing reliability
2Reliability
If electrical components are installed in the dummy object to enable breathing simulation, then the breathing movement simulation is improved, but interference with radar sensors occurs
Solution Approach 1:
The patent removes electrical components from the dummy object to eliminate interference with radar sensors, using only pneumatic elements for breathing simulation
Solution Approach 2:
The patent uses a pneumatic system as an intermediary to achieve breathing simulation without direct electrical components that would interfere with sensor readings
3Strength
If metallic components are used in the dummy object, then the structural integrity is improved, but the radar signature is falsified
Solution Approach 1:
The patent changes the material composition parameters of the dummy object, avoiding metallic components to maintain an accurate radar signature while using alternative materials for structural integrity
4Device complexity
If simple dummy objects are used to avoid complexity, then the device complexity is reduced, but the breathing movement simulation capability is lost
Solution Approach 1:
The patent introduces a pneumatic system with inflatable balloons that provides breathing simulation capability while maintaining overall system simplicity and avoiding complex electrical actuators
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 solution allows for a simpler, flexible, and effective simulation of breathing movements in children, enabling accurate testing of child presence detection systems without interfering with sensor readings, and can be easily adjusted for different sizes and breathing modes.
Implementation Method 1
at least one elastic reset element (10), which is arranged to return the upper body part (6) from a deflected position (9) to a basic position (8)
Implementation Method 2
The actuator (7) comprises at least one inflatable balloon (16), which is connected to the supply system via a compressed air hose (16)
Data Source
AI summary
The invention relates to a dummy object for functional testing of child presence detection (CPD) systems, including a torso having a chest region, an abdominal region, and a back region, further including an upper body part movable relative to the torso for imitating a breathing movement. The upper body part forms at least a part of a chest-abdomen contour of the dummy object to be detected by the CPD system, and includes an actuator that is arranged to deflect the upper body part from a basic position into a deflected position. The dummy object includes at least one elastic reset element that is arranged to return the upper body part from the deflected position to the basic position.