Dual-Camera Positioning for Contactless Elevator Panel Control
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Solution Overview
Problem
Elevator control panels pose a high risk of disease transmission due to direct contact, necessitating a non-contact control system with high reliability and robustness.
Innovation Solution
A non-contact elevator control system utilizing an image processor and two camera modules positioned at adjacent corners of the control panel to detect and calculate the position of an object, triggering corresponding buttons without physical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If contactless control is implemented using camera modules, then the risk of disease transmission is reduced, but the positioning precision and reliability may be affected by external disturbances
Solution Approach 1:
The patent transitions from single-camera 2D imaging to dual-camera 3D spatial positioning. By arranging camera modules at adjacent corners and using triangulation principles, the system calculates object positions in three-dimensional space, improving measurement precision while maintaining contactless operation
Solution Approach 2:
The system continuously captures images from multiple camera modules and dynamically calculates object positions in real-time. This feedback mechanism allows the system to adjust to external disturbances and maintain accurate positioning without physical contact
2Measurement precision
If multiple camera modules are used for accurate positioning, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The control panel is divided into multiple detection zones, each monitored by specific camera modules positioned at corners. This segmentation allows the system to use only relevant camera pairs for each button detection, reducing computational complexity while maintaining precision
Solution Approach 2:
The patent combines image data from multiple camera modules through centralized processing. The image processor integrates information from different camera pairs to calculate unified object positions, simplifying the overall system architecture despite multiple sensors
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
Enables reliable and contactless operation of elevators, reducing the risk of infection and maintaining system functionality despite potential external disturbances.
Implementation Method 1
an image processor, a first camera module, and a second camera module... the image processor obtains a first imaging position of the object based on a first image taken by the first camera module and a second imaging position of the object based on a second image taken by the second camera module
Data Source
AI summary
A non-contact elevator control system having a control panel with multiple buttons, an image processor, a first and a second camera module, wherein the first and second camera modules are arranged at two adjacent corners of the control panel, is disclosed. When an object enters a detection range, the image processor obtains a first imaging position of the object based on a first image taken by the first camera module and a second imaging position of the object based on a second image taken by the second camera module. The image processor calculates the corresponding position of the object in the control panel according to the first and the second imaging positions, and the relative position information of the first and second imaging positions with respect to the first and second camera modules. The image processor triggers a corresponding button in the control panel based on the position.