Method for setting up an industrial network and network configuration unit

Abstract

In the method for setting up an industrial network of an industrial plant having a base infrastructure with at least one first base radio station, the industrial plant is used to determine a target configuration of the industrial network and the target configuration of the industrial network is created by means of at least one terminal device, which is used as an additional second base radio station(s).

Description

[0001] Description

[0002] Method for setting up an industrial network and network configuration unit

[0003] The invention relates to a method for setting up an industrial network and a network configuration unit.

[0004] It is well known that industrial plants, especially industrial manufacturing plants, are not set up statically but are dynamically reconfigured in order to take into account changing requirements in the process flow and / or material flow.

[0005] A new configuration of industrial plants regularly requires adaptations of the communication infrastructure, ie adaptations in particular of an associated industrial network in the form of a communication network.

[0006] The object of the invention is therefore to provide a method by which an industrial network can be configured dynamically and adapted to the current requirements of the industrial environment. Furthermore, the object of the invention is to provide a network configuration unit by means of which the method according to the invention can be implemented.

[0007] This object of the invention is achieved by a method having the features specified in claim 1 and by a network configuration unit having the features specified in claim 10. Preferred developments of the invention are specified in the associated subclaims, the following description, and the drawing.

[0008] In the method for setting up an industrial network of an industrial plant with a basic infrastructure having at least one first base radio station, the industrial plant is used to determine a target configuration of the industrial network and the target configuration of the industrial network is implemented by means of at least one terminal device which is used as an additional second base radio station(s).

[0009] The method according to the invention enables the structure of the network infrastructure of an industrial network, including its hardware, to be dynamically adapted to the current requirements of the industrial network and the industrial plant. The terminal devices used as additional second base radio stations can be dynamically placed in the industrial plant to change the structure of the network infrastructure as needed during process runtime. According to the invention, a new degree of freedom for the design and operation of an industrial network of an industrial plant is thus introduced and utilized to achieve further optimized operation of the networked network infrastructure and industrial plant.

[0010] In the method according to the invention, an industrial plant that has been modified compared to a previous state is preferably used to determine the target configuration of the industrial network. In this further development, a dynamic response to a reconfiguration of the industrial plant is possible, and the industrial network can be continuously adapted.

[0011] It is understood that an industrial network in the context of the present invention always means an industrial communication network.

[0012] In an advantageous development of the method according to the invention, the at least one first base radio station is designed for communication according to a mobile radio standard and / or 5G standard and / or 6G standard, in particular according to the 3GPP standard. Suitably, in the method according to the invention, the additional second base radio station is designed to switch communication connections between two or more terminal devices. Preferably, in the method according to the invention, the additional second base radio station is designed to switch communication connections between at least one terminal device and a cloud of an edge cloud system.

[0013] In the method according to the invention, in an advantageous further development, the industrial plant is a manufacturing system and / or a maintenance system and / or a logistics system.

[0014] In the method according to the invention, in an advantageous development, the terminal device is configured such that, when assuming the function as a second base radio station, it does not query and / or request any different or additional access credentials and / or authentication information or login information from other terminal devices than the first base radio station. For other terminal devices, in this development of the invention, communication with the second base radio station is therefore no different from communication with the first base radio station of the industrial network.Alternatively or additionally and likewise advantageously, in the method according to the invention the terminal is preferably set up in such a way that when it takes over the function as a second base radio station for communication with further terminals it does not use and / or employ a different or additional communication protocol or no different or additional communication protocols than the first base radio station uses and / or employs.

[0015] Alternatively or additionally, and also particularly preferably, the terminal device in the method according to the invention is configured such that it uses one or more different communication channels for communication with other terminal devices than for communication with the first base radio station. In this development, additional terminal devices for communication with the second base radio station do not have to share the communication channel that the second base radio station uses for communication with the first base radio station, but can use their own undivided and thus unrestricted communication channel.

[0016] The network configuration unit according to the invention is configured to carry out a method for setting up an industrial network of an industrial plant as described above and has a detection unit for detecting the industrial plant and has a configuration determination unit for determining a target configuration of the industrial network depending on the industrial plant and also has a simulation device for modeling the industrial network and is configured to use at least one terminal as an additional second base radio station.

[0017] The network configuration unit according to the invention is preferably configured to establish a first channel between the first base radio station and the second base radio station, and to establish a connection between the second base station and additional terminals via a second channel. In particular, the network configuration unit according to the invention is configured to request the second base station to establish the second channel with the additional terminals.

[0018] The network configuration unit according to the invention enables the structure of the network infrastructure of the industrial network, including the hardware, to be dynamically adapted to the current requirements of the industrial network and the industrial plant using the method according to the invention described above. The terminal devices used as additional second base radio stations can be dynamically placed in the industrial environments in order to change the structure of the network infrastructure as needed during process runtime. According to the invention, a new degree of freedom for the design and operation of an industrial network of an industrial plant is thus introduced and utilized to achieve further optimized operation of the networked network infrastructure and industrial plant.

[0019] In the context of the present invention, the term "use as an additional second base radio station" expediently means that the terminal device can communicate with other terminal devices as an additional second base radio station. Particularly preferably, in the method according to the invention, the second base radio station is configured such that it does not query and / or request any different or additional access credentials and / or authentication information or login information from terminal devices for using the second base radio station than the first base radio station. For other terminal devices, communication with the second base radio station is therefore no different from communication with the first base radio station of the industrial edge cloud system.

[0020] Alternatively or additionally, and also particularly preferably, the terminal device is used and configured as a second base radio station in such a way that it uses one or more different communication channels for communication with other terminal devices than for communication with the first base radio station. In this development, additional terminal devices for communication with the second base radio station do not have to share the communication channel that the second base radio station uses for communication with the first base radio station, but can use their own communication channel undivided and, to that extent, without restriction.

[0021] In the method according to the invention and / or the network configuration unit according to the invention, the terminal device is expediently configured such that, when assuming the function as a second base radio station, it does not query and / or request any different or additional access credentials and / or authentication information or login information from other terminal devices than the first base radio station. For other terminal devices, communication with the second base radio station is therefore no different from communication with the first base radio station of the industrial edge cloud system.

[0022] Alternatively or additionally, and also particularly preferably, the terminal device is configured such that it uses one or more different communication channels for communication with other terminal devices than for communication with the first base radio station. In this development, additional terminal devices for communication with the second base radio station do not have to share the communication channel that the second base radio station uses for communication with the first base radio station, but can use their own communication channel undivided and, to that extent, without restriction.

[0023] The invention is explained in more detail below using an embodiment shown in the drawing.

[0024] In the embodiment shown in Fig. 1, a wireless industrial edge cloud system is operated. This industrial edge cloud system is a manufacturing system in the illustrated embodiment. In other embodiments not specifically shown, the industrial edge cloud system can also be a maintenance system or a logistics system.

[0025] The manufacturing system illustrated in Fig. 1 includes numerous manufacturing devices, such as manufacturing robots, as well as material depots for materials processed by the manufacturing robots. Furthermore, the manufacturing system includes a 5G mobile radio network with a base station BS for the SG mobile radio network, which connects the manufacturing devices of the manufacturing system to the cloud (not explicitly shown). In further embodiments not specifically illustrated, the 5G mobile radio network can be replaced by a 6G mobile radio network or another wireless communication network.

[0026] The production system also includes a number of mobile end devices (iUE), which can be moved actively or passively as modules attached to other production facilities, for example by means of autonomous transport vehicles.

[0027] The mobile terminals iUE are in radio contact with the base station BS or can be connected to the base station BS if necessary.

[0028] These mobile terminals (iUE) are also referred to as infrastructure terminals in the context of this application and can themselves be used and configured as mobile base stations (BS). For this purpose, a mobile terminal (iUE) opens a first channel to the base station (BS) and provides the function of a base station to other terminals in the production system via a further, second channel. For this purpose, other terminals connect to the mobile infrastructure terminal (iUE) via this second channel, while the mobile infrastructure terminal (iUE) does not forward the data exchanged with the other terminals to the cloud itself, but rather transmits it via the first channel to the base station (BS), which in turn provides the connection to the cloud.The mobile infrastructure terminal iUE does not request its own access credentials from the other terminals, but forwards the communication via the first channel directly to the base station, ie the access credentials of the other terminals for access to the base station BS can be used unchanged for access to the mobile infrastructure terminal iUE.

[0029] In further embodiments not specifically shown, which correspond to the embodiment shown in Fig. 1, the mobile infrastructure terminal iUE uses the same communication protocol(s) for communication with other terminals as the base radio station BS.

[0030] In the 5G mobile network shown in Fig. 1, the configuration is not static; rather, it is continuously adapted to the constantly changing conditions of the industrial manufacturing system. For this purpose, the industrial manufacturing system also includes the following network configuration components, which together form a network configuration unit.

[0031] For this purpose, a network planning module (PLAN) is initially available. The network planning module (PLAN) communicates with a digital twin implemented in a simulation module (DT) of the SG mobile network and queries changed requirements and physical topologies resulting from the system dynamics of the industrial manufacturing system, such as the integration of new production material or a rearrangement of production equipment (see black boxes in Figure 1). For example, new production equipment or the integration of new production material can block existing radio connections, requiring replanning of the 5G mobile network during operation. These new requirements are then resolved by the digital twin of the simulation module (DT) using a new architecture for the 5G mobile network, and this new architecture is received back for further configuration.

[0032] In addition, the network configuration units include the following additional components:

[0033] A simulation module (DT) with the aforementioned digital twin of the 5G mobile network receives the aforementioned changed requirements and physical topologies resulting from the system dynamics of the industrial manufacturing system and calculates new solutions. The new requirements are transmitted to the simulation module (DT) by the network planning module (PLAN), and physical constraints, such as those resulting from the relocation of materials and / or production equipment, are not directly specified but are provided by a modeling module (ML), which obtains these physical constraints from a changed work plan and a changed bill of materials by modeling the industrial manufacturing process.The modeling module ML models the industrial manufacturing process, while the simulation module DT determines the resulting consequences for the SG mobile network.

[0034] The digital twin of the DT simulation module also receives current status data from the end devices via a network management module (MAN). Furthermore, the digital twin of the DT simulation module receives process-related information from the ML modeling module.

[0035] The digital twin of the 5G mobile network calculates new solutions for 5G mobile network topologies, including the repositioning of infrastructure end devices that are already being used as additional base stations or the new use of existing infrastructure end devices as additional base stations. The capabilities of infrastructure end devices used as base stations, particularly with regard to their navigation functions, their respective position, and their respective status, are obtained from an end device management component (IUEM). The results of this calculation are transmitted to the network planning module PLAN on the one hand and to the end device management component IUEM for the further or new configuration and management of the infrastructure end devices.

[0036] The end device management component (IUEM) creates the required configuration artifacts based on the information provided by the digital twin of the simulation module (DT). These configuration artifacts are transmitted to the network management module (MAN) for configuration implementation. Furthermore, the end device management component (IUEM) also triggers the placement of the infrastructure end devices to be used as base stations, either through manual deployment by employees or through automated positioning, for example, using autonomous electric vehicles in the case of mobile infrastructure end devices. As already explained, the infrastructure end devices (IUE) are mobile and can be used as base stations to connect other end devices to the 5G wireless network.Infrastructure end devices (iUE) communicate with stationary infrastructure base stations (BS) via a dedicated wireless channel (BE) for all backend communication. Infrastructure end devices can be deployed in various ways. Examples include manually attaching the infrastructure end device (iUE) to a defined position on a passive or active load carrier, or deploying an infrastructure end device (iUE) with its own mobility concept (e.g., based on an AGV platform or a rail system in a warehouse).

[0037] Positioning of the infrastructure end devices (iUE) is achieved by navigating the AGV platforms to which or on which the infrastructure end devices (iUE) are attached, e.g., mounted. Positioning of the infrastructure end devices (iUE) is regularly triggered automatically by the end device management component (IUEM). Positioning is achieved by navigating the infrastructure end device (iUE) to the specified target position. As soon as the target position is reached, the end device management component is notified.

Claims

Patent claims 1. Method for setting up an industrial network in an industrial plant with a basic infrastructure with at least one first base radio station (BS), in which the industrial plant is used to determine a target configuration of the industrial network and in which the target configuration of the industrial network is implemented by means of at least one terminal device (iUE), which is used as an additional second base radio station.

2. Method according to claim 1, in which an industrial plant which has been changed compared to a previous state is used to determine the target configuration of the industrial network.

3. Method according to one of the preceding claims, in which the at least one first base radio station (BS) is designed for communication according to a mobile radio standard and / or 5G standard and / or 6G standard, in particular according to the 3GPP standard.

4. Method according to one of the preceding claims, in which the additional second base radio station (iUE) is designed to switch communication connections between two or more terminals.

5. Method according to one of the preceding claims, in which the additional second base radio station (iUE) is designed to switch communication connections of at least one terminal with a cloud (CLOUD) of the edge cloud system.

6. Method according to one of the preceding claims, wherein the industrial plant is a manufacturing system and / or a maintenance system and / or a logistics system.

7. Method according to one of the preceding claims, in which the terminal device is set up as a second base radio station (iUE) in such a way that, when taking over the function as a second base radio station (iUE), it does not query and / or request any different or additional access credentials and / or authentication information or registration information from further terminal devices than the first base radio station queries and / or requests.

8. Method according to one of the preceding claims, in which the terminal is set up as a second base radio station (iUE) in such a way that, when assuming the function as a second base radio station (iUE), it does not use and / or utilize a different or additional communication protocol or no different or additional communication protocols than the first base radio station uses and / or utilizes for communication with further terminals.

9. Method according to one of the preceding claims, in which the terminal is set up as a second base radio station in such a way that it uses one or more different communication channels for communication with further terminals than for communication with the first base radio station.

10. Network configuration unit, configured to carry out a method for setting up an industrial network in an industrial plant according to one of the preceding claims, which has a detection unit for detecting the industrial plant and which has a configuration determination unit for determining a target configuration of the industrial network depending on the industrial plant and which has a simulation device for modeling the industrial network and which is configured to use at least one terminal (iUE) as an additional second base radio station.

11. Network configuration unit according to the preceding claim, which is arranged to establish a first channel between first base radio station and second base radio station, and which the second base radio station (iUE) is designed to connect to further terminals by means of a second channel.

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