රියැදුරන් රහිත වාහන නිසා මැනුම් හා සිතියම්කරණයට වැඩි ඉඩක්
Emerging mapping surveyors boost China's unmanned driving sector
Mapping surveyor, an emerging occupation, is giving a leg up by making high-precision maps for China's unmanned vehicles.
Nowadays, driverless delivery vehicles and taxis are becoming an increasingly common sight across the country and their operation relies heavily on high-precision map navigation.
In Hefei, capital of east China's Anhui Province, unmanned delivery vehicles are used to cut the workload of the couriers. The vehicles are able to run on the roads as well as those driven by the people.
"If it encounters the traffic light, it will automatically recognize it and stop at the red light and passes at a green one. If there are pedestrians on the zebra crossing, it will also stop to avoid them in time. Such intellectualization relies on our map collection and data conversion," said Gao Tianlai, mapping surveyor of an unmanned vehicles company in Hefei.
He said producing maps for driverless cars is a complete technical system, including more than ten links such as collecting information, making maps and inspecting them to form a high-precision map for the vehicle-mounted sensing system to achieve safe operation of the unmanned vehicles.
Among them, collecting information for the map is the most basic and the most critical, with strict requirements.
"The navigation maps we usually use for driving are accurate to the lane level or the meter level and can meet the drives' needs. But our high-precision map needs to be accurate to the centimeter level, containing rich elements such as flower beds on the road, lane marks, railings and signs. All these will be scanned and shown on the high-precision map. Our deviation must be within five centimeters," said Gao.
Gao uses laser radar to measure distance and satellite signal receiving antenna for precise positioning.
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