1-3-1
A Mobile Mapping System Based on GPS, GIS and Multi-sensor
Deren Li
LIESMARS, Wuhan Technical University of Surveying and Mapping, China
Si-Dong Zhong Sai-xian He Han Zheng
Department of Optical Instrument, Wuhan Technical University of Surveying and Mapping,
Luoyu Road 39,430070 Wuhan, Hubei,P.R.China
E-mail: dli@dns.WTUSM.edu.cn
Keywords: Mobile mapping, 3S Integration, Multi-sensors
ABSTRACT
Many various types of land vehicle based mobile mapping system are comprehensively analyzed. A new mobile
mapping system-WUMMS is introduced in this paper. The system consists of two parts, one is hardware, including
computer, display panel and a variety of sensors. The other is software, including of navigation, image measurement
and environment data collection software. The principle of system and the functions of the system such as data
acquisition, data procession, storage and data management are described in this paper. It opens up a path for 3S
integration and lays a foundation for further research work.
1 INTRODUCTION
The fast creation, integration and real-time acquisition
of geo-spatial data for GIS database is a bottleneck
restricting GIS development. The “soul” of GIS-spatial
analysis is based on high accuracy, high quality and high
temporal resolution spatial database. Therefore, the
method for GIS spatial and attribute data acquisition
with low cost, high efficiency, high accuracy, and high
quality is very important. Traditionally, data collection
is a laborious process, requiring manual entry of
coordinates digitizing of data, manual field recordings,
photogrammetric survey, and other techniques
appropriate to the data. The cumbersome, tedious, and
time-consuming nature of these methods has resulted in
increased costs and lengthened time for implementation
of GIS system. For example, in photogrammetric
surveys, aerial photographs may not provide sufficient
detailed information regarding complex object features
because of the photo scale and perspective projection
geometry. In terrestrial surveying with total station,
object features can be measured very accurately, but the
operation is time consuming and sometimes render a
project impossible. However, a mobile mapping system
based on CCD, GPS and GIS is capable of solving the
above problems. The advantages of mobile mapping
system should include:
• Increased coverage capability , rapid turnaround
time and thus improved efficiency of the fields data
acquisition;
• Integration of various sensors, so that high quality
spatial and attribute data can be acquired efficiently;
• Simplified geometry for object measurements
supported by direct control data from navigation sensor
or GIS; and
• Flexible data processing scheme with original data
stored as archive data and specific objects measured at
any time.
Image sequences obtained from Mobile Mapping
System provide an opportunity for automatic object
recognition and GIS database updating,
Mobile mapping system (MMS) can be defined as a
moving platform upon which multiple sensors
measurement systems have been integrated to provide
near-continuous position of the platform path in space
and simultaneous collection of geo-spatial data in object
space. Since the late 80’s, it has been investigated and
developed. In many countries, it was inspired by the
availability of GPS technology for civilian uses. Now
there are many various types of land vehicle based
mobile mapping system in the world. An overview of
them was given by Tao, 1998, see Table 1.
From Table 1, we can see: varieties of sensors are
integrated in a mobile mapping system. These sensors
can be classified into two categories (navigation sensors
and mapping sensors) based on their functions.
Navigation sensors include GPS, INS DR, gyroscopes,
barometers, etc; mapping sensors include video or
digital cameras, laser range finders, Laser scanners etc.
