Mobile Web GIS development Research Papers (original) (raw)

The text presents the results of geotecnologica research conducted at the Graduate Program in the Catholic University of Minas Gerais- PUC-MG, Belo Horizonte - Laboratory of Spatial Information Systems, at the Discipline named "Special... more

The text presents the results of geotecnologica research conducted at the Graduate Program in the Catholic University of Minas Gerais- PUC-MG, Belo Horizonte - Laboratory of Spatial Information Systems, at the Discipline named "Special Topics - Web Geovisualization" using the geolocation service embedded in a cellular application called SOS FaEnge as an instrument to the location of local relevance between the university and the students when a questionnaire and interview was applied aiming the students' knowledge about geotechnology uses in urban practice and best sites for docents. The results indicate that the application has obtained a great relevance to the students as users, because their practice and assignments helped provide a geo-location service to urban structures in the city in a didactic way, contributing to local development.

Have you ever wondered if it is possible to create field documentation using only your mobile phone? Can you imagine that you have just one tool to measure coordinates, take photos, create 3D models, plan your drone path and fill in the... more

Have you ever wondered if it is possible to create field documentation using only your mobile phone? Can you imagine that you have just one tool to measure coordinates, take photos, create 3D models, plan your drone path and fill in the artefact database? Well, it seems that we are on the edge of a technological revolution: in the next few years, we are going to face a breakthrough in the GNSS technologies In April 2018, India successfully launched its eighth satellite (IRNSS-1I), Galileo should have reached its full capability soon. The first GPS 3 satellite will be sent to the orbit. This next generation satellite is thought to introduce a fourth GPS signal (L1C). As David A. Turner – Deputy Director Office of OES/SAT - has pointed out, one of the key topics discussed in the modernization of GPS is to “encourage compatibility and interoperability among global and regional systems”. There is already a response to this in the smartphone industry as well: The BCM4775X is stated to be the first GNSS chip designed for smartphones to provide dual L1 and L5 frequency. Moreover, Android 7 OS has been equipped with tools to measure the carrier phase, which is a major ingredient in differential GPS. This capability is not available in every type of smartphone yet, but it is possible that future non-professional hardware could have better performance in GNSS. We are facing changes in the professional hardware as well, as the current operating system used for most PDAs is being withdrawn from the market and replaced by others. GPS signals are going to change from codeless into a modernized civil-coded transmission, which is not going to be usable by all equipment currently used by archaeologists. A new era of modernized GNSS is approaching. We can face it when it is there in the 2020s or we can start preparing for it now. This is the question behind this session in which we will discuss both technical and methodological problems of field surveys which exists today and might occur tomorrow.