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The methods for a large space cleaning task are usually using human-operated cleaning vehicle or brooms, even in the period of mid-night. In addition to hiring a large amount of people (usually senior), the over-work issue during mid-night period is another concern to the cleaning company. Therefore, an omni-directional mechanism/robot suitable for mid-night cleaning period in a large space is proposed;...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.