GB/T 40021-2021Cyber-physical systems—Terminology (English PDF)

2.1 Physical entity

Things that exist objectively, have certain attributes that can be distinguished, and can be perceived but do not depend on perception to exist.

Note: Rewrite GB/T 33745-2017, definition 2.1.3.

2.2 Cyber object

Digital description and modeling of the form, function, mechanism, and operating status of physical entities.

2.3 Physical space

The space containing physical entities such as people, equipment, materials, process/methods, and environment in the entire manufacturing process.

2.4 Cyberspace

The space for information creation, storage, modification, exchange and utilization through electromagnetic spectrum, electronic systems, network facilities, etc.

Note 1. The electromagnetic spectrum is mainly used for remote control and information carrying, electronic systems are mainly used for calculation, and network facilities are mainly used for interconnection.

Note 2. The connotation of information space is equivalent to cyberspace.

2.5 Sensing

The process of obtaining various data such as physical entity form, state and physical space environment through sensing equipment.

Note: Rewrite GB/T 33745-2017, definition 2.1.8.

2.6 Analysis

The process of transforming perception data into cognitive information.

2.7 Decision

In order to achieve a certain goal, based on accumulated experience, analyzed information, etc., under certain conditions, the choices made in different schemes Choose the result.

Note: Rewrite GB/T 25485-2010, definition 3.17.

2.8 Execute

The process of transforming decisions generated in the information space into commands that can be executed by physical entities and realizing them.