Following a consultation process with end users and project partners to identify gaps and needs for the projection of public spaces, we refined and validated the main functionalities, requirements and use-cases of S4AllCities, and established KPIs and functional and non-functional requirements for the project. This resulted in 79 User Requirements, 23 Use Cases, 11 KPIs, 233 functional requirements and 27 non-functional requirements and the system’s architecture.
The released hardware and software components are summarized below:
• A combined hardware and software approach (p-PUF lock) for access control to restricted areas, a cyberattack detection module, and visual analytics attack module.
• Novel sensors, including: the Fiber Bragg sensing platform, the next generation smart building SB112 system, a low-cost edge oriented and resource constrained image-based processing hardware platform, an airborne sensing platform, a community policing crowd sensing platform, and a portable near infrared spectrometer for sensing chemical precursors to explosives. Further, data from legacy sensors available were integrated.
• The distributed edge computing internet-of-things (DECIoT) platform, aggregated and pre-processed raw data from the sensors into events. Additional services for sensing the network status were implemented that enabled communication of first responders through a mission critical push-to-talk application even in congested networks, and also adapted the data collection and transmission rates appropriately.
• The malicious actions intelligent detection system (MAIDS), combined advanced simulation models with situational awareness through video analytics, supplied to a fusion engine that combined the events with native knowledge for differentiating usual from unusual behavior.
• The augmented context management system (ACMS), responsible for generating alerts and early warnings from the events, evaluated in real time the risk status of infrastructure and public spaces, and generated recommended actions for first responders. All events, alerts, simulations and data were presented in a Common Operational Picture, which allowed security operators to visualize all information.
Following the established plan for component integration, the project achieved its objectives of deployment and demonstration in three pilot cities. The scenarios showcasing the various deployed solutions were developed and refined with the active participation of the end users and the technical partners.
In addition to the technical actions, S4AllCities recruited and engaged its extended Project Advisory Group, developed a security management framework, and concluded a societal impact assessment.
The project disseminated its work through 3 Journal publications, 8 Conference publications, 1 book chapter, 4 whitepapers, 1 open dataset and 2 lectures. Continuous communication of project activities was achieved through our social media channels and the periodic publishing of newsletters.