The Internet of Things (IoT) is the next evolution of the internet after the mobile internet. While BLE (or next generation of communication technologies such as Lora/NB-IoT) and GPS are well-suited technology to build up IoT applications and systems, integrated indoor and outdoor GIS systems are critical to realize the potential of IoT. This will impact the operation of society in a large scale paving the next wave of innovations and economic activities.
A major challenge of GIS systems is scalability during large scale deployment. The software would need to accommodate tremendous amount of networking traffic triggered by millions of devices and mobile users. Message queue technology is used to address the scalability issue of the cloud for massive loading. In addition, it could also be used to increase the network bandwidth efficiency for IoT data.
In order for GIS systems to be useful in the IoT context, this system consolidate both indoor and outdoor information in a seamless presentation. These information come from various different sources; outdoor information come from GPS or A-GPS, and indoor information usually come from BLE, Wi-Fi, and magnetic measurements. Also, the system has an interface to big data analytic platforms such as Hadoop.
The system is capable to manage multi-site geo-locations, massive users and IoT devices, and also real time proximity and IoT sensors data. The associated security and access right control of the system have also been developed.
Finally, trials will be deployed in Kowloon East to demonstrate the developed technologies. Know-how and technology in the area of scalable indoor and outdoor GIS will also be transferred to related government departments.