Smart Ladder Safety Mesh Deployment for Fall Protection
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Solution Overview
Problem
Conventional ladders pose a risk of life-threatening accidents due to their unstable nature, necessitating a smart safety system that can predict and perform safety functions based on user behavior to prevent injuries.
Innovation Solution
A smart ladder system equipped with a safety net or trampoline that activates and deploys based on user height, extending like a folding hand fan to form a secured circular net mesh configuration, and folds back when the user descends, providing protection and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional ladder is used, then the structure is simple and economical, but the safety protection is insufficient and life-threatening accidents can occur
Solution Approach 1:
The safety system is segmented into independent functional modules: sensor units distributed at different heights, a control unit, and a net deployment mechanism. This modular segmentation allows the complex safety function to be achieved through coordinated simple components, improving reliability without overwhelming complexity.
Solution Approach 2:
The safety net is pre-positioned in a retracted state along the ladder structure, ready for immediate deployment. Sensors are pre-installed at critical heights to detect user position before dangerous situations occur, enabling preventive safety action rather than reactive response.
2Object-affected harmful factors
If a safety net system is added to the ladder, then user protection is improved, but the device complexity increases
Solution Approach 1:
The safety net mechanism is merged with the ladder structure itself, using the ladder's existing framework to support and guide the net deployment. This integration ensures the net is always properly positioned and eliminates the need for separate mounting structures, reducing overall system complexity.
Solution Approach 2:
The safety net transitions from a static component to a dynamic element that automatically deploys and retracts based on real-time sensor detection of user position. This dynamic behavior provides protection only when needed, reducing complexity by eliminating continuous mechanical support structures.
3Area of stationary object
If the mesh unit is extended outwardly to form a secured circular net mesh configuration, then the protection coverage is improved, but the space requirement increases
Solution Approach 1:
The mesh unit is designed to nest within the ladder structure when retracted, with the net material wound or folded along the ladder's length. This nesting arrangement minimizes the volume occupied by the safety mechanism during storage while allowing full deployment coverage when activated.
Solution Approach 2:
The mesh unit transitions from a one-dimensional linear storage configuration along the ladder to a two-dimensional or three-dimensional circular net configuration during deployment. This dimensional transformation allows large protection coverage area to be achieved from a compact storage volume.
Data Source
AI summary
A method for self-rescuing a user climbing a smart ladder is provided. The method includes activating, by a processor, a mesh unit based on a detection of the user's step above a certain height from a pedalboard of the smart ladder. The mesh unit is installed along at least one side of the smart ladder. The mesh unit is extended outwardly like a folding hand fan to form a secured circular net mesh configuration along the sides of the smart ladder. Further, the method includes suspending, by the processor, the mesh unit, based on a detection of the user's step at the pedalboard. Furthermore, the method includes folding, by the processor, the mesh unit back along at least one side of the smart ladder.