Presence Sensor Modulation for Wireless Building Data Transmission
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Solution Overview
Problem
Existing building technology systems face challenges in cost-effective and flexible data transmission between devices, particularly in lighting technology, due to the need for additional modules and infrastructure with wired and wireless methods, which can be inefficient and increase electromagnetic interference.
Innovation Solution
A building technology device equipped with a presence detection sensor that modulates and demodulates radio signals to transmit data between adjacent devices, utilizing the existing presence detection sensor for both presence detection and data transmission, eliminating the need for additional transmitter and receiver units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired transmission methods are used to network building technology devices, then reliable data transmission is achieved, but device complexity and installation costs increase due to required cables and infrastructure
Solution Approach 1:
The patent replaces wired mechanical connection systems (cables, connectors, physical infrastructure) with a wireless electromagnetic field-based communication system. The presence sensor uses electromagnetic signals to transmit data between building technology devices without requiring physical cable connections, thereby eliminating the complexity of wired infrastructure while maintaining reliable data transmission capability.
2Adaptability or versatility
If radio-based transmission methods are used to enable flexible wireless communication, then spatial flexibility is improved, but device complexity increases due to additional transmit/receive modules and antennas
Solution Approach 1:
The patent makes the presence sensor perform multiple functions: it simultaneously detects presence and transmits data wirelessly. By integrating the communication functionality into the existing presence sensor, the system eliminates the need for separate dedicated transmit/receive modules and antennas, thereby reducing device complexity while maintaining spatial flexibility.
Solution Approach 2:
The patent combines the presence detection function and data transmission function into a single integrated sensor unit. The presence sensor serves dual purposes as both a detection device and a communication device, merging previously separate functions into one component to reduce overall system complexity.
3Adaptability or versatility
If additional radio transmit/receive modules are installed in building technology devices, then wireless communication capability is achieved, but harmful electromagnetic radiation increases within the building
Solution Approach 1:
The patent enables the presence sensor to perform self-communication using its own internal signal generation capabilities. The sensor transmits data wirelessly through its integrated transmitter without requiring external radio modules, thereby achieving wireless communication capability while minimizing additional electromagnetic radiation sources.
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
This solution enables cost-effective and flexible data transmission between building technology devices, allowing for intelligent control and synchronization of lighting systems while avoiding the need for additional hardware, thus improving spatial flexibility and reducing electromagnetic interference.
Implementation Method 1
a signal generator (2) for generating a first radio signal (3) and having a modulation input (2.1) for supplying a modulation signal, wherein the signal generator (2) is configured to output the first radio signal (3) as a signal modulated with the modulation signal
Implementation Method 2
at least one antenna
Implementation Method 3
a receiver for receiving a second radio signal
Data Source
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AI summary
The invention relates to a building technology device, in particular a lighting device such as a luminaire, which includes a presence detection sensor. The presence detection sensor comprises a signal generator for generating a first radio signal, at least one antenna, a receiver for receiving a second radio signal, and an evaluator for generating presence information by evaluating the second radio signal. The device is characterized in that the signal generator includes a modulation input for supplying a modulation signal, and the signal generator is further configured to output the first radio signal as a signal modulated by the modulation signal. It is particularly preferred that the receiver of the presence detection sensor is designed to output an information-carrying signal generated from the second radio signal at an output interface.The invention further comprises a corresponding system for information transmission from at least one first building technology device to at least one second building technology device by means of the presence detection sensor of the first device and the presence detection sensor of the second device, as well as a corresponding transmission method.