scholarly journals The Design of the Vehicle Tracker tools using Raspberry

2020 ◽  
Vol 30 (1) ◽  
Author(s):  
Mohammad Hamdani
Keyword(s):  
Tolerance Limit ◽  
Delay Testing ◽  
The Internet ◽  
Information Channel ◽  
Gps Receiver ◽  
Digital Map ◽  
Time Coordinate ◽  
Digital Maps ◽  
Map Testing ◽  
Coordinate Data

In this paper, it is explained about the design of the Vehicle Tracker tool which is useful in tracking the location of movable assets, by utilizing a GPS receiver USB receiver with a built in antenna, to get coordinates, a Raspberry as a controller and a cellular modem as a media information channel connected to the internet. The controller combines these coordinate information with digital maps obtained from Google Map servers on the internet. When the client accesses the Vehicle Tracker unit via the internet, the controller (Raspberry) provides 'real time' coordinate data along with a digital map. Testing is done by comparing it with GPS Standards with results that are still within the tolerance limit required by GPS International. Latency / delay testing to find out how long the information is sent from the device to the client results in latency / delay under 1 second.   Keywords : Vehicle Tracker, GPS, latency, delay, Raspberry

scholarly journals MEMBANGUN PROFIL RESIKO PADA PEMBUATAN PETA DIGITAL MENGGUNAKAN FRAMEWORK NIST

2018 ◽  
Vol 1 (1) ◽  
pp. 28-38
Author(s):  
Koes Wiyatmoko ◽  
Yudi Prayudi
Keyword(s):  
Risk Management ◽  
Global Positioning System ◽  
High Accuracy ◽  
Positioning System ◽  
Digital Map ◽  
Digital Maps ◽  
Global Positioning ◽  
The Government ◽  
Managing Risk ◽  
Coordinate Data

GPS (Global Positioning System) is the main device that record location based on coordinate . The purpose of location recording is making digital maps and the output are printed-maps. Digital maps and printed-maps that have been authorized by the government will become reference for every activities like terminating the location objects or borderline. The Accuracy and authenticity of coordinate data from GPS is essential for high-accuracy maps, but digital maps are also vulnerable from editing, duplication, or deleted for a particular purpose. Because of that, supervisory management in the manufacturing process is needed to help facilitate in building a digital map-making profile. The reference in managing risk management to build the profile is NIST Framework.

Leven met water

2019 ◽  
Vol 4 (4) ◽  
pp. 265-268
Author(s):  
MICHEL LASCARIS
Keyword(s):  
The Netherlands ◽  
Cultural Heritage ◽  
Climate Adaptation ◽  
Adaptation Strategies ◽  
Digital Map ◽  
Digital Maps ◽  
Pumping Stations ◽  
New Challenges ◽  
New Research ◽  
Over Time

Living with water. The Dijkenkaart of the Netherlands De Cultural Heritage Agency made an interesting digital map (in GIS) of all the dikes in the Netherlands. This was possible by using existing digital maps, but new research was necessary to make this general overview. There was discussion about the dating of dikes, because dikes can be of medieval origin, but were adjusted over time. Besides dikes, researchers find GIS and historical information on poldermills, kolks, reclamations and pumping stations. That is why this map is called ‘Living with water’, because this information can help addressing new challenges in climate adaptation strategies dealing with water. Everyone can take a look, or download the map in GIS, on www.cultureelerfgoed.nl/onderwerpen/bronnen-en-kaarten/overzicht/levenmet-water-kaart.

The Use of Location-Based Augmented Reality as Information Media in The Digital Map Application of Jakabaring Sport City

2021 ◽  
Vol 9 (2) ◽  
pp. 103-118
Author(s):  
Siska Arifiani ◽  
Miranda Manurung ◽  
Raden Venantius Hari Ginardi
Keyword(s):  
Augmented Reality ◽  
Tourism Industry ◽  
Location Based Service ◽  
Current Version ◽  
Digital Map ◽  
Digital Maps ◽  
Location Data ◽  
Search Feature ◽  
Integrate Technology ◽  
Information Media

Jakabaring Sport City (JSC) is an integrated sports facility complex and a public tourist spot in Palembang. Due to its extensive area and numerous facilities, visitors need a map with distinct markers for the landmark to make it easier when walking around. Recent technology advancements and its expanding role in various fields invites the question on how to integrate technology in the tourism industry. This journal aims to create an android-based digital map application with augmented reality (AR) as a guiding medium that will display directions towards the Jakabaring exit gate. This app is built using Maps SDK for Android to build the digital maps, Navigation SDK for Android to run navigation, and Maps for Unity to display AR objects that will show the directions towards the exit. The development focuses on a location-based service using GPS to track the user's whereabouts and provide real-time location data around the user. This application has a location search feature, a guiding direction (route and navigation) to a designed location, and an AR camera feature to display where the JSC exit gate is located. Every feature is working well and able to help users while visiting JSC. However, this application could still be improved in the AR feature because on its current version, it is only able to display directions to the JSC exit gate when users are within a radius of one kilometer or less to the exit.

scholarly journals Mental health information online: what we have learned from social media metrics in BuzzFeed’s Mental Health Week

2018 ◽  
Vol 40 (4) ◽  
pp. 326-336 ◽  
Author(s):  
Thais Martini ◽  
Leticia S. Czepielewski ◽  
Daniel Prates Baldez ◽  
Emma Gliddon ◽  
Christian Kieling ◽  
...  
Keyword(s):  
Mental Health ◽  
Social Media ◽  
Mental Health Treatment ◽  
The Internet ◽  
Accurate Information ◽  
Information Channel ◽  
Audience Engagement ◽  
Mental Health Information ◽  
Personal Experiences ◽  
Social Media Platforms

Abstract Introduction The Internet has seen rapid growth in the number of websites focusing on mental health content. Considering the increased need for access to accurate information about mental health treatment, it is important to understand the promotion of this information online. Objective To analyze BuzzFeed’s Mental Health Week (BFMHW) interactions on its own website and in related social media platforms (Facebook, Twitter and YouTube) using metrics of information delivery in mental health topics. Methods We extracted social media metrics from the 20 posts with the highest number of BuzzFeed interactions on the BFMHW website and from 41 videos available on the BFMHW playlist created by the BuzzFeed Video profile on YouTube. We analyzed the format and content used in BuzzFeed’s publishing methods as well as the following social media metrics: exposure (presence online, views and time online), influence (likes) and engagement (comments, shares, replies and BuzzFeed interactions). Results Analysis of the variables revealed that audience engagement is associated with the number of medias in which the content is published: views on YouTube and shares on Facebook (0.71, p<0.001), total interactions on Facebook (0.66, p<0.001) and BuzzFeed number of total interactions (0.56, p<0.001). Conclusions Our results suggest that videos on YouTube may be an important information channel, including activity and engagement on other medias such as Facebook. Information may be more effective in reaching the audience if it is delivered in more than one media and includes personal experiences, some humor in content and detailed information about treatment.

Navigation Support using Minimal Information as a Supplement to a Digital Map

2015 ◽  
Vol 7 (1) ◽  
pp. 61-79
Author(s):  
Björn J E Johansson ◽  
Charlotte Stenius
Keyword(s):  
Sufficient Information ◽  
Gps Receiver ◽  
Digital Map ◽  
Distance Information ◽  
Foot Placement ◽  
Head Mounted Display ◽  
Navigation Support ◽  
Small Head ◽  
And Performance ◽  
Minimal Information

By presenting continuously updated heading and distance information on a small head-mounted display, as a supplement to a GPS-receiver, the authors examined if workload could be reduced and performance increased when navigating in a demanding situation. The purpose was to present as limited, but sufficient, information as possible to facilitate navigation. The technique was tested on ground troops, but could also be used by rescue services and police in situations that require navigation in unknown environments. The main findings were that the workload was reduced in two aspects (during navigation and handling personal equipment) but increased in another (looking for foot placement). When using the head mounted display, it was found that participants stopped fewer times to look at the GPS-receiver if they had continuous updated heading and distance information. This suggests that a supplement with minimal information on a head mounted display could be useful when navigating with a GPS-receiver in an unknown environment.

scholarly journals A Survey of Key Technologies for Constructing Network Covert Channel

2020 ◽  
Vol 2020 ◽  
pp. 1-20
Author(s):  
Jing Tian ◽  
Gang Xiong ◽  
Zhen Li ◽  
Gaopeng Gou
Keyword(s):  
Communication Technology ◽  
Network Architecture ◽  
The Internet ◽  
Covert Channel ◽  
Free Access ◽  
Transmission Network ◽  
Information Channel ◽  
Covert Channels ◽  
Key Technologies ◽  
Network Covert Channel

In order to protect user privacy or guarantee free access to the Internet, the network covert channel has become a hot research topic. It refers to an information channel in which the messages are covertly transmitted under the network environment. In recent years, many new construction schemes of network covert channels are proposed. But at the same time, network covert channel has also received the attention of censors, leading to many attacks. The network covert channel refers to an information channel in which the messages are covertly transmitted under the network environment. Many users exploit the network covert channel to protect privacy or guarantee free access to the Internet. Previous construction schemes of the network covert channel are based on information steganography, which can be divided into CTCs and CSCs. In recent years, there are some covert channels constructed by changing the transmission network architecture. On the other side, some research work promises that the characteristics of emerging network may better fit the construction of the network covert channel. In addition, the covert channel can also be constructed by changing the transmission network architecture. The proxy and anonymity communication technology implement this construction scheme. In this paper, we divide the key technologies for constructing network covert channels into two aspects: communication content level (based on information steganography) and transmission network level (based on proxy and anonymity communication technology). We give an comprehensively summary about covert channels at each level. We also introduce work for the three new types of network covert channels (covert channels based on streaming media, covert channels based on blockchain, and covert channels based on IPv6). In addition, we present the attacks against the network covert channel, including elimination, limitation, and detection. Finally, the challenge and future research trend in this field are discussed.

scholarly journals An Evaluation Model of Level of Detail Consistency of Geographical Features on Digital Maps

2020 ◽  
Vol 9 (6) ◽  
pp. 410
Author(s):  
Pengcheng Liu ◽  
Jia Xiao
Keyword(s):  
Measurement Method ◽  
Evaluation Model ◽  
Level Of Detail ◽  
Digital Map ◽  
Digital Maps ◽  
Average Value ◽  
Contour Lines ◽  
Geographic Feature ◽  
Bottom Quartile ◽  
Heterogeneous Features

This paper proposes a method to evaluate the level of detail (LoD) of geographic features on digital maps and assess their LoD consistency. First, the contour of the geometry of the geographic feature is sketched and the hierarchy of its graphical units is constructed. Using the quartile measurement method of statistical analysis, outliers of graphical units are eliminated and the average value of the graphical units below the bottom quartile is used as the statistical LoD parameter for a given data sample. By comparing the LoDs of homogeneous and heterogeneous features, we analyze the differences between the nominal scale and actual scale to evaluate the LoD consistency of features on a digital map. The validation of this method is demonstrated by experiments conducted on contour lines at a 1:5K scale and artificial building polygon data at scales of 1:2K and 1:5K. The results show that our proposed method can extract the scale of features on maps and evaluate their LoD consistency.

scholarly journals Practical Constraint K-Segment Principal Curve Algorithms for Generating Railway GPS Digital Map

2013 ◽  
Vol 2013 ◽  
pp. 1-11
Author(s):  
Dewang Chen ◽  
Long Chen
Keyword(s):  
Data Storage ◽  
Expert Knowledge ◽  
Low Cost ◽  
Large Data ◽  
Gps Data ◽  
Small Data ◽  
Data Sets ◽  
Digital Map ◽  
Digital Maps ◽  
Practical Algorithms

In order to obtain a decent trade-off between the low-cost, low-accuracy Global Positioning System (GPS) receivers and the requirements of high-precision digital maps for modern railways, using the concept of constraint K-segment principal curves (CKPCS) and the expert knowledge on railways, we propose three practical CKPCS generation algorithms with reduced computational complexity, and thereafter more suitable for engineering applications. The three algorithms are named ALLopt, MPMopt, and DCopt, in which ALLopt exploits global optimization and MPMopt and DCopt apply local optimization with different initial solutions. We compare the three practical algorithms according to their performance on average projection error, stability, and the fitness for simple and complex simulated trajectories with noise data. It is found that ALLopt only works well for simple curves and small data sets. The other two algorithms can work better for complex curves and large data sets. Moreover, MPMopt runs faster than DCopt, but DCopt can work better for some curves with cross points. The three algorithms are also applied in generating GPS digital maps for two railway GPS data sets measured in Qinghai-Tibet Railway (QTR). Similar results like the ones in synthetic data are obtained. Because the trajectory of a railway is relatively simple and straight, we conclude that MPMopt works best according to the comprehensive considerations on the speed of computation and the quality of generated CKPCS. MPMopt can be used to obtain some key points to represent a large amount of GPS data. Hence, it can greatly reduce the data storage requirements and increase the positioning speed for real-time digital map applications.

Design and Realization of Electronic Map Based on MapX

2011 ◽  
Vol 52-54 ◽  
pp. 1113-1117 ◽  
Author(s):  
Jia Fu Liu ◽  
Yu Hua Liang ◽  
Jing Li
Keyword(s):  
Popular Science ◽  
Digital Map ◽  
Electronic Map ◽  
Digital Maps ◽  
Development Tool ◽  
Program Language ◽  
Key Technologies ◽  
Design And Production

According to the characteristics of design and production for digital maps, a methodology for developing popular science tour digital map is proposed in respect with the reality of popular science tour resources in Northeast. A popular science tour digital map in Northeast was made with the MapX controls, which is a popular GIS development tool designed from the VB program language. Several key technologies for the design and production of the electrical map were discussed. The development of popular science tour digital map in Northeast has practical values for tourism developments.

scholarly journals Judančių objektų stebėjimas realiuoju laiku naudojant „Google Earth“

2008 ◽  
Vol 42 (43) ◽  
pp. 114-120
Author(s):  
Viktoras Paliulionis
Keyword(s):  
Moving Objects ◽  
Tracking System ◽  
Google Earth ◽  
Mobile Internet ◽  
Moving Object ◽  
Markup Language ◽  
Gps Receiver ◽  
Digital Maps ◽  
Desktop Application ◽  
Gis Software

Straipsnyje nagrinėjama galimybė realiuoju laiku vizualizuoti judančius objektus naudojant „Google Earth“ programą ir jos KML kalbą. Straipsnyje aprašytas judančių objektų stebėjimo sistemos „Akis-GE“ prototipas ir jo architektūra. Šioje sistemoje judančio objekto buvimo vieta nustatoma naudojant GPS imtuvą ir perduodama į „Akis-GE“ serverį mobiliuoju internetu. Programa „Google Earth“ periodiškai kreipiasi į serverį, kuris dinamiškai sugeneruoja KML failą, aprašantį stebimo objektopadėties pokytį. „Google Earth“ pasikeitusią objekto padėtį iš karto pavaizduoja žemėlapyje. Be to, prototipas turi galimybę animuoti tam tikro laikotarpio kelionės duomenis. Tokiai sistemai realizuoti nereikalinga brangiai kainuojanti GIS programinė įranga.Real-time visualisation of moving objects using „Google Earth“Viktoras Paliulionis SummaryThis paper discusses issues of the real-time visualisation of moving objects by means of Google Earth software and Keyhole Markup Language (KML). Moving object tracking system “Akis-GE” is described, and the architecture of its prototype presented. In the proposed system, the location of a moving object is determined using a GPS receiver, and then the location is transferred to an “Akis-GE” server via mobile Internet. Google Earth client periodically requests updated positions from the server and displays them on the map. The system can be implemented without the use of expensive GIS software and digital maps, as Google Earth desktop application with maps is free and worldwide accessible.

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