Foam Frame Obstacle Climbing Surveillance Robot
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Solution Overview
Problem
Existing remotely-controlled surveillance and reconnaissance robots face challenges with stair climbing due to their heavy weight, which leads to traction issues and a higher risk of flipping over, especially on steep and smooth surfaces.
Innovation Solution
A remotely-controlled surveillance robot with a lightweight energy-absorbing frame made of foam and composite materials, featuring individually driven wheels and a camera system oriented 180 degrees, allowing it to absorb shocks and operate on either side after being tossed, and equipped with an operator control unit for wireless control and data reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the robot uses a heavy tracked or wheeled design for surveillance and reconnaissance, then it has sufficient structural strength and stability, but it experiences traction issues and flipping risk when climbing steep and smooth stairs
Solution Approach 1:
The patent changes the fundamental parameter of robot weight by using foam core construction with hollow chambers, reducing the robot's mass from typical heavy tracked designs to a lightweight configuration. This weight reduction enables the robot to climb steep stairs without slipping or flipping, directly resolving the traction and stability issues while maintaining sufficient structural strength through the foam material properties and chamber design
Solution Approach 2:
The patent employs composite construction combining foam core material with hollow chambers and external structural elements. This composite approach provides both the weight reduction needed for stair climbing and the structural strength required for surveillance operations, creating a robot that overcomes the traditional trade-off between strength and mobility
2Adaptability or versatility
If the robot is designed with complex mechanical extensions for stair climbing, then it can overcome obstacles, but it becomes heavier and more difficult to operate
Solution Approach 1:
The patent extracts the complex mechanical stair-climbing extensions from the robot design, replacing them with a lightweight foam-based structure that climbs stairs through its fundamental design rather than add-on mechanisms. This elimination of complex extensions reduces both weight and operational complexity, making the robot easier to control while maintaining stair-climbing capability
Solution Approach 2:
The foam core structure serves multiple functions simultaneously: it provides structural strength, enables stair climbing through its lightweight properties, absorbs shocks, and allows the robot to operate in various orientations. This multi-functionality eliminates the need for specialized mechanical extensions, simplifying operation while maintaining obstacle-climbing versatility
3Stability of the object's composition
If the robot has a high vertical center of gravity for structural stability, then it maintains upright position, but it flips backwards when climbing steep staircases
Solution Approach 1:
The patent changes the robot's mass distribution parameter by using lightweight foam construction throughout the structure. This fundamental parameter change allows the robot to maintain stability through its overall lightweight design rather than relying on a high center of gravity, preventing backward flipping during stair climbing while still maintaining upright position during normal operation
4Strength
If the robot uses conventional heavy materials for frame construction, then it has durable structure, but it cannot get enough grip on smooth stair surfaces to propel itself
Solution Approach 1:
The patent changes the material parameter from conventional heavy materials to lightweight foam construction. This parameter change fundamentally alters the robot's interaction with stair surfaces, enabling it to maintain traction on smooth surfaces by preventing the slipping and track detachment that occurs with heavy robots, while the foam material itself provides sufficient durability for the application
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 robot effectively climbs stairs with improved traction and stability, withstands mechanical shocks, and can operate upside down, reducing the risk of damage and flipping, while being lighter and more cost-effective to manufacture.
Implementation Method 1
The light-weight frame housing is made of light-weight foam that substantially surrounds, structurally supports and protects the wheel motors, the sensor system and electronic controller from mechanical shock during intended robot operation
Data Source
AI summary
A surveillance system includes a robot and an operator control unit (OCU) for controlling the robot. The robot includes a light-weight frame housing, wheels, motor compartments positioned within the light-weight frame housing, wheel motors positioned within the motor compartments and attached to the wheels, a camera for capturing surveillance images and an electronic controller that is electrically or wirelessly connected to the wheel motors and the camera and that is wirelessly connected to the OCU. The light-weight frame is made of light-weight foam that substantially surrounds, structurally supports and protects the robot wheel motors, camera and electronic controller from mechanical shock during intended use.