Evaluate beginning, middle, and end effectiveness of iRobot cleaning pad.
Date Run:
06/14/2015
Experiment Procedure:
iRobot unit: Apply soil to 4’ X 4’ clean vinyl floor, spreading 1g of soil onto even numbered tiles with a swab and odd tiles by dripping 1g of soil onto them (16g per floor). Allow the floor to dry for 24h. Attach a cleaning pad to the Braava unit and completely fill with water. Then place the Braava unit onto the floor. Turn on the Braava unit, and begin the cleaning cycle. At intervals of 10 seconds, take a picture of the floor. Once the cycle is complete, empty any water still in the Braava unit and dispose of the pad.
Pictures are taken periodically to compare effectiveness of cleaning pad over time. This will allow beginning, middle, and end cleaning to be visually evaluated.
To evaluate total soil removal, a visual observation will be made. This observation will be an estimation of the % soil removed from each tile by comparing before and after pictures of the floor. In addition to this rating, observers will also be asked to rate the overall cleanliness of the floor from 1-5 (1 being no soil remaining).
Tile numbers
4
5
6
7
3
14
15
8
2
13
16
9
1
12
11
10
^^^
Braava unit starts here.
Trial Results:
The floor was soiled and cleaned once.
Found that the Braava unit stopped its cleaning cycle after ~9 minutes.
All observers agreed that the floor was not fully cleaned, all rating it 3 or greater.
The Braava unit removed more soil if it first sprayed water onto it.
Percent removal Trial 1
(Ex: 95% means that 5% of the tile was covered in contaminant.)
Observer 1 – rating: 3
99%
80%
100%
95%
100%
100%
90%
95%
100%
95%
100%
100%
90%
100%
70%
90%
Observer 3 – rating: 3.5
100%
85%
98%
94%
99%
100%
90%
100%
94%
97%
98%
99%
92%
99%
88%
90%
Observer 2 – rating: 3
95%
85%
97%
95%
100%
100%
90%
98%
100%
95%
100%
98%
90%
99%
85%
90%
Success Rating:
A cleanliness study, addressing only various analytical techniques.
Conclusion:
Pad seemed clean consistently across entire floor.
Manual wipe tests will be conducted with paper towels and water in order to provide a comparison to the Braava unit. The time it takes to clean the floor will be recorded. Once cleaned, the floor will be evaluated with the same visual method mentioned earlier in this report.
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