Elevator User Detection for Adaptive Electrical Consumer Control
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Solution Overview
Problem
Existing building electrical systems lack efficient and adaptive methods for switching electrical consumers based on user identity and location, leading to potential disruptions and security vulnerabilities.
Innovation Solution
A method utilizing a network node that receives control signals via a radio network to switch electrical consumers, including cameras and lighting units, based on user identification and door sensor inputs, with image recognition for security monitoring and alarm generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If building power network is used for both power supply and communication, then functionality is increased, but communication reliability deteriorates due to impedance behavior changes
Solution Approach 1:
The system separates communication and power functions by using two distinct networks: the building power network for power supply and a radio network for communication. This segmentation eliminates the interference between power and communication signals while maintaining the versatility of using existing power outlets for device connectivity.
Solution Approach 2:
A network node acts as an intermediary device that bridges the power network and radio network. It receives power from the building power network and communicates via radio signals, translating between the two domains and enabling reliable communication without direct electrical connection for data transmission.
2Device complexity
If manual switches are used for electrical consumers, then system complexity is reduced, but adaptability to user identity and location deteriorates
Solution Approach 1:
The system enables automatic switching of electrical consumers based on user identification and location without requiring manual intervention. Sensors detect user presence and identity, the control algorithm determines the appropriate action, and switches are activated automatically, allowing the system to serve itself in making switching decisions.
Solution Approach 2:
The system performs preliminary identification of users and assessment of their location and needs before switching electrical consumers. By detecting user identity in advance and predicting their requirements based on location, the system prepares and executes switching actions proactively rather than reactively.
3Reliability
If security monitoring is enhanced with image recognition, then safety monitoring is improved, but device complexity increases
Solution Approach 1:
The camera system serves multiple functions: it monitors security, records images for analysis, and can trigger alarm signals. By making the camera multi-functional, the system enhances safety monitoring capabilities without adding separate dedicated devices for each function, thereby managing complexity while improving reliability.
Solution Approach 2:
The system implements feedback loops where images captured by cameras are analyzed, and based on the analysis results, alarm signals are generated or switching actions are taken. This feedback mechanism enables automated security response, improving safety monitoring while using existing system components to manage complexity.
Data Source
AI summary
A method is provided for switching at least one electrical consumer (1, 1′ 1″) in a building comprising an elevator system. The switched electrical consumer (1″) is, for example, a camera. The camera is activated if when using the elevator system the user does not actuate a building door within an ascertained route time, i.e. the user does not arrive at his/her destination. It is possible using an image recorded by the camera to establish whether the user is possibly in a dangerous situation.