Cable-Free Door Safety Power for Movable Transport Doors
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Solution Overview
Problem
Existing door safety systems in transport means, such as omnibuses and rail vehicles, are susceptible to mechanical damage and interference due to exposed cable harnesses used for supplying electricity and data to safety components, leading to maintenance-intensive systems.
Innovation Solution
A door safety system with a safety component on a movable door element and a supply component on an immovable door frame, utilizing an electrical energy store that autonomously supplies the safety component in the open state, and charges in the closed state, eliminating the need for cable harnesses and enabling wireless energy and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cable harnesses are used to supply electricity and data to safety components on movable door elements, then the safety components can be continuously powered and communicate with the control system, but the cable harnesses are exposed to constant mechanical loading and external influences, making them susceptible to damage and requiring frequent maintenance
Solution Approach 1:
The patent extracts the cable harness from the system by implementing wireless energy and data transmission. The safety component on the movable door element communicates with the control component and receives power wirelessly, eliminating the physical cable harness that was previously necessary for electrical connection and data exchange. This resolves the contradiction by removing the maintenance-prone component while preserving all functional capabilities.
Solution Approach 2:
The patent replaces the mechanical cable harness system with wireless transmission technology. Instead of using physical cables for electrical power and data communication, the system employs wireless energy transmission and wireless data communication between the control component and safety component, substituting a mechanical system with a field-based system that is not subject to mechanical wear and damage.
2Use of energy by moving object
If cable harnesses are laid in the region of hinges or pivot arms to supply power to safety components, then the safety components can be powered during door operation, but the cable harnesses are exposed to mechanical loading and external influences, making them vulnerable to damage
Solution Approach 1:
The patent replaces the mechanical cable harness with wireless energy transmission. The safety component receives electrical energy wirelessly through electromagnetic fields, eliminating the need for physical cable connections that pass through hinges and pivot arms. This substitution removes the vulnerability to mechanical damage and external influences while maintaining continuous power supply capability.
Solution Approach 2:
The patent introduces wireless electromagnetic fields as an intermediary for energy and data transmission. Instead of direct physical contact through cable harnesses, the control component and safety component communicate and exchange power through wireless fields, which can penetrate door structures without being affected by mechanical loading or external damage.
3Quantity of substance
If cable harnesses are used for connecting safety components, then electrical power and data can be transmitted, but the system becomes expensive and maintenance-intensive due to susceptibility to damage and interference
Solution Approach 1:
The patent extracts the cable harness from the system architecture, eliminating the need for extensive wiring infrastructure. By implementing wireless energy transmission and wireless data communication, the system removes the complex network of cables, connectors, and shielding that previously were necessary, thereby reducing material costs, installation complexity, and ongoing maintenance requirements while preserving full electrical and data transmission capabilities.
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 system reduces susceptibility to faults, enhances maintenance efficiency, and increases service life by eliminating cable harnesses and allowing wireless energy and data communication, thereby improving safety and reliability.
Implementation Method 1
the safety component (10) has an electrical energy store (12) which is designed to autonomously supply the safety component (10) with electrical energy in the open state of the door (2)
Implementation Method 2
the safety component (10) and the supply component (11) are designed to electrically charge the electrical energy store (12) of the safety component (10) in the closed state of the door (2)
Data Source
AI summary
A door safety system (3) for a door (2), having a safety component (10) arranged on a movable door element (4, 4a, 4b) of the door (2) and a supply component (11) arranged on a stationary door frame (5) of the door (2) for supplying energy to the safety component (10). The safety component (10) has an electric energy store (12) which is designed to autonomously supply electric energy to the safety component (10) when the door (2) is open, and the safety component (10) and the supply component (11) are designed to electrically charge the electric energy store (12) of the safety component (10) when the door (2) is closed.