Design and Implementation of Mobile Digital Campus System
Xiangling Ning, He Jiang, Haowen Song,Yuncheng Zhu and Jian Li
School of Information, Qilu University of Technology, Jinan, China
Keywords: Baidu Map, Campus System, Positioning Technology, IFLY.
Abstract: The mobile digital campus system as a tool to access the campus network resources, and its design and
implementation meet everyone's basic needs, which greatly enhance the information level of school. This
Paper describes a comprehensive Android handhold digital campus system which is based on Baidu map.
The IFLY intelligent voice technology and the functions about Baidu map have been combined with the
system. This system implement voice dialogue and voice navigation of the mobile terminal device. The
operation of the system is very human and it makes the users have an intelligent experience felling.
1 INTRODUCTION
As information technology and wireless network
technology becomes more and more mature, the
domestic and foreign universities are carrying on the
different levels of the construction of campus
information. The digital campus is the inevitable
trend of development in the modern distance
education and network (Shengwu Duan and Sijun
Jia, 2014).”Digital Campus” is a kind of virtual
education environment (ZhangMin, 2014). In view
of the specific situation of Qilu university of
technology, we developed this set of integrated
Android mobile digital campus system which is
based on Baidu maps. The software system includes
voice dialogue, information query, bar code
scanning, books information query, campus
navigation and so on.
The mobile digital campus system relying on
mobile communications and WLAN network (Xiao
Hu, Changhong Liu and Waixi Liu, 2012).
Depending on the portable mobile terminal
equipment, the mobile digital campus system
applying all kinds of information resources and
services for effective integration and display (Zhang
H, Feng B and Zhang L, 2012). In this way, it can
realize all kinds of campus information sharing and
provide great convenience for school teachers and
students to receive the information resources (Zeng
M and Ge, 2014). The system uses the method of
data integration and it will be scattered in each
information island in the effective information
resources integrated into a system. In this way, we
can easily access to the campus network resources.
There is no doubt that this system improves the
school's information level and achieves the real
mobile campus digital.
2 THE DESIGN OF MOBILE
DIGITAL CAMPUS SYSTEM
In terms of speech recognition, using China's largest
intelligent speech technology provider IFLY
intelligent speech technology. It is taken into
consideration and detailed, and it is practical as well
as strong stability, conforming to the direction of the
development of technology today. Applications on
the map, it uses with the upgrade Baidu map which
possess the function of Baidu mobile phones voice
navigation. In this way, users don't need to
download the navigation data packets and it provides
a powerful support for the navigation functions of
this system.
2.1 Principles of System Design
The principles of integrity and openness: this system
design fully consider the relationship between the
various units of the school, the overall design and
planning of the system. This system pays more
attention to the organic integration of various
information resources and makes it have certain
openness. The principle makes us grasp the
relationships between information sharing and
466
466
Zhu Y., Li J., Ning X., Jiang H. and Song H.
Design and Implementation of Mobile Digital Campus System.
DOI: 10.5220/0006028704660470
In Proceedings of the Information Science and Management Engineering III (ISME 2015), pages 466-470
ISBN: 978-989-758-163-2
Copyright
c
 2015 by SCITEPRESS – Science and Technology Publications, Lda. All rights reserved

information security.
The Principles of scalability and maintainability:
This system has forward-looking in the design, and
it fully takes into account the feasibility of the
system upgrade, expansion and maintenance. We
have considered this system may involve the
characteristics of the users and business more
multifarious. We all hope to offer convenience for
everyone. This system fully considers how to
improve the response speed of the business process
as well as the speed and accuracy of statistical
summary.
2.2 The Design of System Module
The mobile digital campus system is based on
Android platform and it can be divided into five
functional modules in general as shown in figure1.
The Campus Navigation: We use Baidu map and the
intelligent voice robot with dispatch voice into the
system. The system adopt an appropriate technology
to plan out the optimal path between two points.
Under the condition of the network, when we say the
name of the building, it will be immediately locate
to the destination. If the digital campus system can’t
find the destination, it will have a feedback
information.
Voice Dialogue: We use the IFLY’s voice
technology to carry on the simple chat dialogue. In
this way, it can realize pronunciation fuzzy
matching, pronunciation localization, pronunciation
navigation, dialogue quiz and so on.
Information Inquiry: This system makes use of the
Chinese word segmentation technology to query the
campus information. The default homepage web
connection is Qilu University of technology.
Combined with the current existing campus
resources, we can check the school information.
Bar Code Scanning: Designing bar code scanner and
by scanning the books on the back of the bar code,
the system automatically connected to the campus
library database and query information related to
books borrowing.
Electronic Data Query: This module includes online
video class, electronic schoolbag and study BBS.
Students could carry on the effective review and
study exchanges, answering all kinds of questions
according to own actual situation.
MobileDigitalCampusSystem
Campusnavigation
Voicedialogue
Informationinquiry
Barcodescannin
g
Electronicdataquery
Figure 1: Software overall module.
2.3 The Design of System Interface
This system adopts the visualization of the graphical
user interface (Qi W U and Lin J and Yang J T,
2014
).The graphical interface instead of the ordinary
user interface. The interface is intuitive and
transparent to the users and it is very easy to use for
the ordinary users. The main body of the system
includes three parts: The campus satellite map,
covered with some pictures of the building points
and the commonly used function buttons of the
system. The construction methods of the main
interface of the system:
The satellite photos in the campus satellite map
are taken from the Baidu map. It is convenient for
school teachers and students to search the campus
information. The users can directly click on the
button to see the clear picture of buildings and get
the related information. The users will have a perfect
experience just the same as using the Baidu
panorama map.
The virtual campus’s background is the Baidu
campus satellite map. The information of the
campus teaching building, the office building, the
laboratory building, the library, gym, canteen,
dormitory and the shop are skilfully embedded in the
map. In order to enhance the convenience of query
information in the virtual campus, all the
information can be indexed by the tags. The user can
experience a strong interaction when completing a
variety of operations via the keyboard, touch screen
or voice navigation system.
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The system user interface realizes the
communication between the users and the terminal
equipment, and it is the most direct layers between
the software and the human users interaction.
Designing a good human interface can not only
allow users to meet their own information needs, but
also brings pleasant feeling to the users. When
enjoying the warm service, the users not only bring
some economic benefits to the software developers,
but also it is conducive to the promotion of software
products.
3 THE IMPLEMENTATION OF
KEY TECHNOLOGIES IN
MOBILE DIGITAL CAMPUS
Voice as an interactive tool, it can bring a new mode
of interaction for geographic information. Based on
the campus Baidu map, the system calls IFLY
intelligent voice interface. It smoothly realizes the
combination between voice technology and Baidu
map. Baidu map has the open interface based on the
Android platform and it is open and free. It can
reflect the actual location and get the favor of the
software practitioners. The operation object of GIS
is spatial data. Dot, plant, line and body which has a
three elements in geographical entities. The most
fundamental characteristics of the spatial data in
each data is coded in accordance with the unified
geographic coordinates, and realizing the description
of the localization, the qualitative and the
quantitative. Geographic information system (GIS)
has become a very mature technology.
3.1 The Implementation of IFLY Voice
Technology
Speech recognition is a technology to solve machine
understanding the human language. Speech
recognition technology is an intelligent technology
which transforming the pronunciation signal into the
corresponding text or the order through the process
of recognition and understanding. As the main
direction of the intelligent computer research and the
key technology of human machine speech
communication. Speech recognition technology has
got the extensive attention by the scientific
community
. Speech recognition is essentially a
process of pattern recognition.
The reference
patterns of unknown speech pattern and the know
speech are compared one by one
and the pattern of
the unknown speech is compared with the
reference pattern of the known speech. The best
matching reference pattern is used as the
recognition result.
Pattern matching method is the most commonly
used method for speech recognition. The method
generally needs four steps to complete, namely,
feature extraction, model training, pattern
recognition and judgment. In the training phase, the
users only need to say every word in the vocabulary
list, and store the feature vector in the template
library used as template. In the recognition phase,
the feature vector of the input speech is compared
with each template in the template library, and the
highest similarity template will be output as the
recognition results.
The system firstly integrates the IFLY voice of
intelligent speech technology and encapsulates a
unified voice recognition interface for the entire
application package. When programming, you just
simply calls the underlying unified interface to
enable voice recognition capabilities, and specific
logic and processes are encapsulated in the bottom.
By importing the function of speech recognition,
speech recognition ,speech synthesize and semantic
comprehension, this system has completed the
integration between the fly smart voice and mobile
digital campus system, and this system realized the
voice conversation, which prepared for the following
voice navigation feature.
3.2 The Implementation of Precise
Positioning Technology
Mobile GIS is a system which based on the mobile
Internet and relying on mobile intelligent terminal
and combining GPS positioning or base station
positioning. The intelligent terminal all carries the
GPS localization hardware system, so the moving
GIS is welcomed increasingly in recent years (
Cheng
G and Liang X L, 2014). With the rapid development
of mobile GIS, there are many open interfaces of
GIS system. Baidu map API are a set of application
program interfaces which compiled by the
JavaScript language. We can build a content-rich
and interactive mobile digital campus system. The
system adopts the Baidu satellite maps to overlook
the campus. It can make the software surface more
intuitive and clear. Through the user's terminal
interface of this system to realize the operation of
click, double-click, click, zoom, rotating changing
perspective on the map .
Satellite maps accurately should be called
satellite remote-sensing images. The satellite map is
the real geography landscape and it can be used to
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detect the information of the ground. The system
calls the API of the Baidu map and the codes are as
follows:
bMap.setMapType(BaiduMap.MAP_TYPE_SATEL
LITE);// Satellite maps
The Baidu map SDK supports positioned layer, map
marking, mulch line planning results and so on (Fan
Z and Li L, 2014). We called the content stacking or
covering on the map as the mulch and the codes are
as follows:
createMarker("library",GeoFactory.GEO_L
IBRARY,GeoFactory.LIBRARY_NORTHEAST,Geo
Factory.LIBRARY_SOUTHWEST,ImageFactory.
JIDIANLOU_IMAGR;
GPS positioning provides the accurate location
information to the users. After processing the
received signals, the GPS hardware module will
transmit the positional information to the mobile
termination equipment. After receiving the
processed information, the mobile termination
equipment will apply it into the program and the
localization function will be completed. The Baidu
map can use GPS, WIFI, base stations, IP hybrid
positioning mode. In the software development, this
system directly locates the latitude and longitude of
the library, and it can jump directly to the core area
of the school after opening the system. The codes
are as follows:
// Longitude and latitude about the
library of the Qilu university of
technology
public static LatLng GEO_CENTER =
new LatLng(36.563758, 116.818105);
// Locating to the latitude and
longitude which assigns
bMap = mapView.getMap();
bMap.setMapStatus(MapStatusUpdateFac
tory.newLatLng(GeoFactory.GEO_CENTER));
bMap.setMapStatus(MapStatusUpdateFac
tory.newMapStatus(newMapStatus.Builder(
).zoom(19).build()));
4 CONCLUSION
The mobile digital campus based on the digital
campus platform, and it uses the data from the
existing campus to accomplish a smart mobile
digital campus system. As long as using a smart
phone or other smart mobile terminal equipment, the
users can get their information resources through the
mobile Internet whenever and wherever. The mobile
digital campus fully meets the needs of the campus
users (
Cao Y, Chen L, Wang J L, 2014). The interaction
between the users and the mobile digital campus
intelligent platform has set up a direct
communication bridge for students and schools and
it has enhanced the felling between the students and
the schools. The information is not limited by the
fixed areas or places (Ma L, Zhou Y, Liao K, 2014).
Mobile campus integrated platform can greatly
improve the efficiency of interaction, and fully
utilize the debris time of school teachers and
students to realize the sharing of the mobile campus
resources.
This system combines the mobile technology and
education information construction organically,
through the mobile Internet access to a variety of
teaching and educational administration data, the
teachers and students get great convenience. The
implementation of the mobile digital campus system
has greatly improved the level of the school's
information and enhanced the students' autonomous
learning ability. This system has a wide applications
prospect.
ACKNOWLEDGEMENTS
The research work was supported by the National
University Students Innovation and entrepreneurship
training program (No. 201410431042) and
Shandong Province Nature Science Foundation (No.
ZR2012FM032).
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