Robotic Cleaner Docking Station With Bagged Debris Transfer
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Solution Overview
Problem
Robotic vacuum cleaners require frequent user intervention to empty the dust cup, reducing the convenience of autonomous cleaning due to limited debris storage capacity.
Innovation Solution
A docking station with a suction motor and filter system that collects debris from the robotic vacuum's dust cup, forms a closed bag when full, and deposits it into a collection bin, allowing for multiple cleaning cycles before debris disposal is needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the dust cup size is increased to reduce emptying frequency, then the robotic vacuum cleaner's mobility and maneuverability deteriorate due to increased weight and size
Solution Approach 1:
The debris storage system is segmented into two parts: a small dust cup on the robotic vacuum cleaner for immediate collection, and a larger collection bin at the docking station for long-term storage. This segmentation allows the mobile robot to remain lightweight while the stationary base provides extended capacity.
Solution Approach 2:
The docking station acts as an intermediary between the robotic vacuum cleaner and the user. It automatically receives the vacuum cleaner, transfers debris from the dust cup to the collection bin, and manages bag replacement, eliminating the need for users to frequently empty the dust cup.
2Loss of time
If the dust cup size is increased to reduce emptying frequency, then the cleaning path and area of the robotic vacuum cleaner are reduced due to size constraints
Solution Approach 1:
The storage capacity is segmented between the mobile robot's dust cup and the stationary base's collection bin. This allows the robot to maintain a compact form factor that enables thorough cleaning of hard-to-reach areas while the base station provides extended capacity for reduced emptying frequency.
Solution Approach 2:
The system transitions from a single mobile storage unit to a distributed storage system across two dimensions: the dust cup on the moving robot and the collection bin at the stationary base. This dimensional distribution resolves the conflict between mobility and storage capacity.
3Ease of operation
If automatic debris evacuation is implemented, then the device complexity increases due to additional components like suction motors and filter systems
Solution Approach 1:
The robotic vacuum cleaner autonomously navigates to the docking station, docks automatically, and the docking station automatically evacuates debris from the dust cup to the collection bin. This self-service capability eliminates manual intervention while managing the complexity through automation.
Solution Approach 2:
The manual mechanical action of emptying the dust cup is replaced by an automated pneumatic system (suction motor) that transfers debris through air flow. This substitution reduces operational complexity by eliminating manual dust cup emptying.
4Loss of time
If a larger collection bin is used to store more debris, then the loss of substance increases due to potential contamination and mixing of debris from multiple cleaning cycles
Solution Approach 1:
The system uses disposable or replaceable bags within the collection bin. Each bag can be sealed and replaced when full, preventing cross-contamination between different cleaning cycles. This allows the collection bin to maintain large capacity while ensuring debris isolation through individual bagging.
Solution Approach 2:
Flexible bags made of thin film material are used to line the collection bin. These bags create separate enclosed spaces for debris from different cleaning cycles, preventing mixing and contamination while maximizing the use of the collection bin's volume.
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 docking station significantly reduces the frequency of user intervention for debris disposal by storing collected debris in a larger capacity, maintaining cleanliness through bagged storage.
Implementation Method 1
a suction motor configured to suction debris from a dust cup of the robotic vacuum cleaner
Implementation Method 2
a filter system including a filter medium to collect debris suctioned from the dust cup
Data Source
Figure 1
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AI summary
A docking station for a robotic vacuum cleaner may include a suction motor, a collection bin, and a filter system fluidly coupled to the suction motor. The suction motor may be configured to suction debris from a dust cup of the robotic vacuum cleaner. The filter system may include a filter medium to collect debris suctioned from the dust cup, a compactor configured to urge a first portion of the filter medium towards a second portion of the filter medium such that a closed bag can be formed, and a conveyor configured to urge the closed bag into the collection bin.