Self-Propelled Cleaning Robot Emergency Guidance for Fire Evacuation
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Solution Overview
Problem
Existing automatically movable cleaning devices, such as vacuum and mopping robots, are unable to provide effective active assistance to people present in rooms during a fire, as they primarily focus on providing information to emergency services rather than offering direct help to individuals who may be disoriented by smoke.
Innovation Solution
The cleaning device emits acoustic and/or visual signals to guide individuals to emergency exits or safe locations, using a stored room map to determine the safest route and incorporating sensors to detect people's presence and adjust its movement speed, while also simulating human presence to deter burglars and integrating with calendar systems to optimize cleaning schedules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the cleaning device provides information to emergency services, then emergency services receive additional information, but people present in rooms receive little or no active help
Solution Approach 1:
The cleaning device is equipped with multiple functions: it not only communicates with emergency services but also actively assists people in rooms by emitting acoustic signals, providing visual guidance, and offering tactile assistance through a leash mechanism. This multi-functionality resolves the contradiction by enabling the device to serve both emergency services and occupants simultaneously.
Solution Approach 2:
The cleaning device acts as an intermediary between the fire hazard and the occupants. It detects the fire condition, processes the situation, and provides guided assistance to people while separately communicating with emergency services, thus mediating the emergency response and improving assistance to occupants.
2Ease of operation
If the cleaning device emits acoustic and visual signals, then people can orient themselves in smoke-filled rooms, but the device complexity increases
Solution Approach 1:
The orientation assistance system is segmented into distinct components: acoustic signal emission for auditory guidance, visual signal emission for sighted guidance, and a separate leash mechanism for tactile assistance. This segmentation allows each component to be optimized independently while working together to solve the orientation problem.
Solution Approach 2:
The cleaning device autonomously detects fire conditions, determines the appropriate guidance signals to emit, and actively guides occupants to safety without requiring external control. The device self-manages the complexity of coordinating multiple signal types and adapting to different occupancy scenarios.
3Ease of operation
If the cleaning device moves to guide people to emergency exits, then active assistance is provided, but the cleaning tasks are interrupted
Solution Approach 1:
The cleaning device dynamically adjusts its behavior based on detected conditions. During normal operation, it performs cleaning tasks. Upon detecting a fire hazard, it transitions to emergency response mode, emitting guidance signals and guiding occupants to safety. After the emergency is resolved, it returns to cleaning operations. This dynamic state transition resolves the contradiction by making productivity interruption temporary and condition-dependent.
Solution Approach 2:
The cleaning device maintains awareness of its environment and cleaning tasks while in standby mode. When a fire is detected, it has already positioned itself and prepared its guidance systems, allowing it to immediately begin active assistance without significant delay to overall productivity.
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
The solution enables active assistance to people in smoke-filled rooms by guiding them safely to exits, deterring potential burglars through simulated presence, and optimizing cleaning tasks based on presence detection and calendar information, thereby enhancing safety and efficiency.
Implementation Method 1
the cleaning device emits an acoustic and/or visual signal in the event of a fire alarm
Implementation Method 2
the cleaning device emits an acoustic and/or visual signal in the event of a fire alarm
Implementation Method 3
incorporating sensors to detect people's presence and adjust its movement speed
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a method for operating a self-propelled cleaning device (1), in particular a vacuuming and/or wiping robot, the cleaning device (1) traveling in one or more rooms (3, 4) on the basis of a stored room map (2) and, if necessary, carrying out cleaning jobs. The cleaning device (1) furthermore receives information from a fire sensor (5), in particular initiates an emergency call in the event of a fire alarm. In order to devise a method which offers active help to individuals present in the rooms, the cleaning device (1), in the event of a fire alarm, outputs an acoustic and/or optical signal and moves toward an emergency exit (6) or toward a safe location starting from its current location.