Swinging Door Leaf Sensors With Wireless Power Transfer
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Solution Overview
Problem
Conventional revolving door sensors require complex installations and high energy consumption, often involving drilling and cable transitions, which compromise structural integrity and are inefficient.
Innovation Solution
A device with a drive unit, sensor unit, and energy transmission system that allows wireless communication and energy transfer, eliminating the need for wiring and ensuring reliable operation without drilling, using inductive or contact-based energy transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optical sensors are mounted on the door leaf with wiring, then the monitoring field is always within the danger zone, but complex installation and cable penetrations are required
Solution Approach 1:
The patent replaces mechanical wiring connections with wireless communication technology. The sensor device transmits signals wirelessly to the control unit, eliminating the need for cable penetrations through the door leaf while maintaining reliable monitoring functionality.
Solution Approach 2:
The patent introduces a wireless communication intermediary between the sensor device and control unit. This intermediary enables signal transmission without physical cable connections, resolving the contradiction between reliable monitoring and installation complexity.
2Ease of operation
If cable transitions are used for energy transfer, then sensors can operate with battery power, but structural integrity of the door is compromised
Solution Approach 1:
The patent replaces mechanical cable transitions with wireless energy transfer technology. The control unit transmits energy wirelessly to the sensor device, enabling battery operation without compromising door structural integrity through cable penetrations.
3Device complexity
If wireless communication is implemented, then installation is simplified and structural integrity is maintained, but energy transfer to moving sensor requires solution
Solution Approach 1:
The patent implements periodic energy transfer where the control unit transmits energy to the sensor device at regular intervals or when needed. This periodic energy transfer enables the sensor to maintain operation during door movement without requiring continuous physical cable connections.
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
Simplifies installation, reduces mechanical wear, and maintains structural integrity by eliminating visible cables, enhancing reliability and flexibility in component placement.
Implementation Method 1
energy transfer occurs inductively and the energy transfer unit and the energy conversion element each have a coil
Data Source
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AI summary
The invention relates to a device for opening and/or closing a leaf of a revolving door, comprising a drive unit (12) comprising a first control unit (41) with a first communication element (42), at least a first sensor device (30) arranged on one side of the leaf (24), and a second control unit (51) associated with the first sensor device (30) with a second communication element (52) configured to transmit sensor signals to the first communication element (42).The device is characterized in that an energy transfer unit (44) is provided in a fixed position relative to the drive unit (12), an energy conversion element (54) and an energy storage element (56) are provided, which are associated with the first sensor device (30), wherein in at least one predetermined position of the wing (24) the energy conversion element (54) interacts with the energy transfer unit (44) to transfer energy and charge the energy storage element (56), and the first and second communication elements (42, 52) are configured to transmit the sensor signals wirelessly. The invention also relates to a method for operating a door wing of a revolving door, as well as a first assembly and a second assembly.