Abstract: System (100) comprising several edge computing devices (ECD), each one comprising a sensor (S), a memory (M), a Central Processing Unit, CPU and a digital communication interface (IF) allowing digital communication digitally across a network (NW). The invention is characterised in that each device is arranged with a respective interpreting software function, arranged to interpret computer code, received via said interface and stored in said memory, according to a query language having a predetermined syntax; in that said syntax is arranged to define queries the results of which are streams of data; in that each device is arranged to produce a result to at least one query and to communicate said result via said interface, in that said syntax allows said query to be defined in terms of a calculation to be performed based on a measured value from said sensor, and in that the device in question is arranged to perform, as a part of said interpretation, said calculation. The invention also relates to a method.

Abstract: A system includes several edge computing devices. Each edge computing device includes a a sensor, a memory, a central processing unit (CPU), and a digital communication interface, for communication across a network. Each edge computing device has a respective interpreting software function, arranged to execute on the CPU and to interpret computer code, received via the digital communication interface and stored in the memory, according to a query language having a predetermined syntax. The syntax defines queries the results of which are streams of data. A first software function poses a first query to a second edge computing device. A second software function generates and communicates, in response thereto, a second stream of data. The first software function preprocesses the second stream so that it adheres to a predefined global data ontology, and performs a first calculation using the second stream.