In a smart city development, a city is expected to be able to provide information that is not only available, but also easily accessible and has an element of intelligence. Furthermore, smart city can provide a more decent life, good quality education or maybe also job opportunities, a clean and decent environment, and so on.
GIS can be found everywhere. Basically, GIS is a tool that can integrate various kinds of spatial data for further analysis until obtained results that can be used as a basis for decision making.
The first we can find GIS in the application traffic , by utilizing vehicle location information, for example public transportation such as buses or trains, we can create a location service system with various features for example to inform customers of bus schedules, notifications when there are delays on the road , or if possible we can arrange a bus that is moving to adjust its speed so that it can get to the bus stop with the appropriate estimated time, so that the customer will not miss the bus.
The second is an emergency application, this will be very useful for dealing with natural or non-natural disasters. By providing a heatmap visualization, which is the result of overlaying a variety of other spatial data, we can find out which areas are the most vulnerable areas of the disaster marked in red or safest, marked in green. Can also do disaster mitigation planning by providing a visual exercise application.
The last thing is social governance, for the government, urban planning is not a simple thing, it requires various kinds of knowledge that are collaborated with each other, with the presence of GIS, we can utilize spatial data from various sources, analyze in 2D and 3D, until finally getting conclusions that can be applied in urban planning.
SuperMap Streaming Technology
To do so, SuperMap technology already equipped with streaming data technology that mainly adopts the Streaming data processing extension module (Streaming Service) of SuperMap iServer to realize the reception, storage, processing and output of Streaming data with spatial information. At the same time, UI of stream processing model is provided to lower the threshold of service management. And Users can use SuperMap iClient, SuperMap iDesktop, SuperMap iDesktopX, SuperMap iPortal, SuperMap iMobile to realize streaming data visualization.
In addition, SuperMap supports storing streaming data in SuperMap iServer DataStore (Elasticsearch cluster), analyzing and mining historical data through SuperMap iServer's distributed analysis service. Using the SuperMap iPortal, users can manage streaming data’s resources and services uniformly, and finally realize the streaming data visualization on PC, Web and mobile.
Through the fusion with Spark Streaming framework, SuperMap streaming data technology has formed an integrated technical scheme including data access, data analysis, data storage, data output and visualization.
Streaming Output and Dashboard
As the streaming data is successfully collected, stored, and analyzed, the next step is to display and visualize the result. The below pictures show the monitoring dashboard created by using SuperMap iPortal. We choose Bali, Indonesia as the study area but please be informed that the data used are dummy data, so it didn’t show real information.
On the same page, we can display various information either as a statistical chart or spatial visualization (map). We can choose either display the map as point distribution, heat map, aggregation grid map, range map, and many more depending on the type of information to serve.
