Autonomous street sweeper relies on Unicore precision

July 16, 2019  - By
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The sweeper Woxiaobai has been in service for a year. (Photo: Unicore)

The sweeper Woxiaobai has been in service for a year. (Photo: Unicore)

Fall is a beautiful time of year. But when the leaves drop, it means a lot of sweeping for most of us. Not so for the 200 campuses and parks in China using IdriverPlus’ WO series of unmanned sweepers.

High-precision GNSS positioning plays an important role in making the autonomous units possible, providing real-time high-precision position, speed and time information.

The sweeper in Beijing’s Haidian Park. (Photo: Unicore)

The sweeper in Beijing’s Haidian Park. (Photo: Unicore)

Unicore’s high-precision GNSS technology and their products’ high reliability have enabled IdriverPlus’ unmanned sweepers and logistics vehicles — China’s first mass-produced products in intelligent driving. In January, IdriverPlus received the green light to test self-driving cars in Beijing.

Diagram: Unicore

Diagram: Unicore

Sweepers and logistics vehicles are not only used in open-sky areas, but also in complex environments shadowed by buildings or trees or experience multipath. These areas include school campuses, factory and science parks, and community squares.

Complex environments result in different GNSS availability, reliability and convergence. In autonomous driving, the inputs the vehicle receives from GNSS and other sensors must be accurate and reliable.

A customer removes her express package from the Wobida logistics vehicle. (Photo: Unicore)

A customer removes her express package from the Wobida logistics vehicle. (Photo: Unicore)

The UM482 module used by the IdriverPlus is characterized by dual antennas, compact dimensions, high performance and low cost, providing anti-jamming performance.

Integrated with on-board MEMS and Unicore’s U-Fusion combination technology, the UM482 can effectively solve the disruption of positioning results caused by the loss of satellite signal, and further optimize the continuity and reliability of positioning and heading outputs in complex environments such as city canyons, buildings and tunnels.


See also Age of acceptance: Retirement communities embrace driverless shuttles.

About the Author:


Tracy Cozzens has served as managing editor of GPS World magazine since 2006, and also is editor of GPS World’s sister website, Geospatial Solutions. She has worked in government, for non-profits, and in corporate communications, editing a variety of publications for audiences ranging from federal government contractors to teachers.

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