Autonomous Indoor and Outdoor Navigation Solution for Lands Department Indoor Positioning | GeoSys Hong Kong | 吉奧系統 | 吉奥系统

Autonomous Indoor and Outdoor Navigation Solution for Lands Department Indoor Positioning

 

The Deputy Director Of Lands Department of HKSARG and The Chairman of RICS HK, Sr. Cheung Wai Pun, Ben, is reporting that they are using our Autonomous Indoor Navigation system based on IMU technology for Indoor surveying and mapping purpose.

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The Assistant Director of Lands Department, Paul Ng, is reporting the use of IMU navigation systems for indoor mapping and navigation.

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It is a basic need for humans to find their way through natural and built environments.

Nowadays, this problem is relatively easily to be solved in a natural environment with GPS; however, it can be very difficult or even impossible to do so in urban areas, especially in Hong Kong. This is the case when the satellite navigation does not work or when the map can’t be synchronised easily with the environment, as e g in shopping malls, airports, undergrounds or hospitals.

At Geosys, we bring autonomous indoor and outdoor 3D positioning and navigation solution with the help of AIONAV to ensure our clients to know where they are even in a place that without satellite navigation.

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Technology

AIONAV Systems are technologically based on so called MEMS sensors (Micro Electro Mechanical Systems). Composed of gyroscopes, accelerometers, a magnetometer and ideally a barometer, such MEMS sensors are specifically called Inertial Measurement Units (IMU).

As far as the method is concerned AIONAV systems function according to the so called dead reckoning method: with each accomplished movement the measured distance and direction are calculated (double integration) and added to the last known position.

In order to preserve system accuracy as long as possible (taking into account the technically given inaccuracy), so called ZUPTs (Zero Velocity Updates) are used. AIONAV has developed and patented their own specific algorithms for the recognition and the calculation of such “standstills”.

technical sheet

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Autonomous Indoor and Outdoor Navigation Solution for Lands Department Indoor Positioning

  The Deputy Director Of Lands Department of HKSARG and The Chairman of RICS HK, Sr. Cheung Wai