Data collecting method and system

The invention provides a data collecting method and device. The data collecting method includes: collecting first and second sensor data respectively through a first and a second sensors while a datacollecting apparatus moves within a target area, and tagging a first and a second timestamp values respectively to the first and the second sensor data; generating map data of the target area and location data at a point of time corresponding to the first timestamp value, based on the first sensor data; generating map information of the target area based on the map data, and generating moving pathinformation on the map based on the location data; and estimating a sensing location at a point of time corresponding to the second timestamp value based on the moving path information, and tagging the sensing location to the second sensor data. 本发明提供一种数据采集方法。该数据采集方法包括：在数据采集设备在目标区域内移动的同时，分别通过第一传感器和第二传感器采集第一传感器数据和第二传感器数据，并且分别将第一时间戳值和第二时间戳值标记到第一传感器数据和第二传感器数据；基于第一传感器数据，生成目标区域的地图数据和与第一时间戳值对应的时间点的位置数据；基于地图数据生成目标区域的地图信息，以及基于位置数