Global Robotic Vacuum Cleaner Market By Type (Below 150 Usd, 150 Usd To 300 Usd, 300 Usd To 500 Usd, And Above 500 Usd), By Application (Household, Commercial, And Others), By Region and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028