Emergency Light Radar Signaling for Escape Route Guidance
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Solution Overview
Problem
Existing emergency lighting systems lack the ability to effectively mark escape routes and detect the presence of potentially helpless individuals during emergencies, while also facilitating bidirectional communication between devices for enhanced guidance and information exchange.
Innovation Solution
An emergency light equipped with a radar transmitter that incorporates initial information into a transmission signal to mark escape routes and detect people, using modulated continuous-wave radar to differentiate between paths, and enable bidirectional communication with a mobile device through frequency-modulated signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If emergency lighting systems use traditional detection methods, then they can detect person presence, but they cannot effectively mark escape routes or enable bidirectional communication
Solution Approach 1:
The radar transmission signal is designed to serve multiple functions simultaneously: it detects person presence through echo analysis, marks escape routes by incorporating route identification information, and enables bidirectional communication by carrying data in both directions. This multi-functional approach resolves the contradiction by making a single system capable of performing detection, route marking, and communication tasks that were previously separate functions.
Solution Approach 2:
The patent combines route marking information and communication data into the radar transmission signal itself. The initial radar signal contains encoded information about escape routes, and the echo signals carry detection data back to the system. By merging these functions into a single signal transmission mechanism, the system achieves route marking and bidirectional communication capabilities without adding separate dedicated systems.
2Measurement precision
If radar signals are used for person detection, then detection accuracy improves, but the system cannot incorporate route marking information
Solution Approach 1:
The patent merges route marking information with the radar transmission signal by encoding route identification data into the initial radar signal. This allows the same signal that provides precise person detection through its radar characteristics to simultaneously carry route information, eliminating the need to choose between detection accuracy and information transmission.
Solution Approach 2:
The radar transmission signal is designed as a multi-functional carrier that performs both precise person detection and route information transmission. By making the signal itself capable of carrying multiple types of information (detection data and route marking data), the system resolves the contradiction between maintaining detection precision and incorporating additional route information.
3Loss of information
If unidirectional communication is implemented from emergency light to mobile device, then route information can be transmitted, but bidirectional communication for enhanced guidance cannot be achieved
Solution Approach 1:
The system implements feedback by enabling the mobile device to transmit information back to the emergency lighting system through the radar communication channel. The mobile device can send data such as person identification, location feedback, or status information, which is received and processed by the emergency light system. This feedback mechanism enables bidirectional communication for enhanced guidance while using the existing radar signal infrastructure.
Solution Approach 2:
The radar communication channel is designed to handle bidirectional communication by serving as a universal data transmission medium in both directions. The same signal path used for transmitting route information from the emergency light to the mobile device is also used for receiving feedback information from the mobile device, simplifying the communication architecture while enabling enhanced interactive guidance.
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
Effectively marks escape routes and detects the presence of individuals, providing dynamic route adjustments and bidirectional communication, enhancing safety and guidance during emergencies.
Implementation Method 1
a first device (1) for detecting persons and for transmitting first information... a first transmitter (11) for sending a first transmission signal and a first receiver (12) for receiving an echo of the first transmission signal
Implementation Method 2
The first transmitter (11) is suitable and configured to introduce initial information, in particular for marking an escape or rescue route... The first transmitter (11) is a radar transmitter... modulated continuous-wave radar
Data Source
Figure 1
Figure 2a~2d
Figure 3a~3d
AI summary
The invention relates to a first device (1) for detecting persons and transmitting first information, wherein the first device (1) comprises a first transmitter (11) for sending a first transmission signal and a first receiver (12) for receiving an echo of the first transmission signal and for generating an electrical signal corresponding to the echo from the received echo, and wherein the first receiver (12) comprises an evaluation means (123) for evaluating the electrical signal corresponding to the echo, wherein the evaluation means (123) is suitable and configured to generate information indicating the detection of persons, and wherein the first transmitter (11) is suitable and configured to introduce first information into the first transmission signal for the purpose of communication.