Method for communicating in a communication system having power tools, communication system, and power tool
Patent Information
- Application Number
- EP2022839850
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-02-16
- Filing Date
- 2022-12-27
- Publication Date
- 2024-12-25
AI Technical Summary
Existing communication systems for power tools lack efficient and secure data processing and control mechanisms, particularly in localized settings like factory or construction sites, where real-time data evaluation and secure communication are crucial without relying on cloud-based solutions.
A communication system where power tools act as edge nodes connected via wireless connections to a network unit, which processes data cognitively, controls tools locally, and securely communicates with both end devices and a cloud server, using asymmetric cryptography and preset time intervals for data exchange, enabling efficient and secure data storage and processing at the operating site.
This configuration allows for quick, secure, and localized data processing and tool optimization, reducing latency and bandwidth requirements, while ensuring secure communication and minimizing data transmission to the cloud, thus enhancing operational efficiency and security.
Smart Images
Figure 1.1
Abstract
Description
[0001] Description
[0002] Methods for communication in a with electrical tools
[0003] State of the art
[0004] A method for communication in a communication system with power tools, each of which forms an edge node in the communication system, with a network unit, in particular a network unit designed as a gateway, which is arranged in particular at the operating location of the power tools and which is directly connected to the power tools by means of a wireless connection, in particular a WLAN / WiFi connection, a Bluetooth Low Energy connection and / or a LoRaWAN connection, and with at least one terminal device, in particular a computer, a smartphone and / or a charger, which are provided as a user interface for the network unit, has already been proposed.
[0005] Disclosure of the invention
[0006] The invention is based on a method for communication in a communication system with power tools, each of which forms an edge node in the communication system, with a network unit, in particular a network unit designed as a gateway, which is arranged in particular at the operating location of the power tools and which is connected directly to the power tools by means of a wireless connection, in particular a WLAN / WiFi connection, a Bluetooth Low Energy connection and / or a LoRaWAN connection, and with at least one terminal device, in particular a computer, a smartphone and / or a charger, which are provided as a user interface for the network unit.
[0007] It is proposed that in at least one method step for cognitive data processing, data of the power tools are collected and processed by the network unit and in at least one further method step, the power tools are controlled or regulated by the network unit by means of a local closed control or regulating circuit.
[0008] The communication system is preferably intended to create secure communication, in particular secure data exchange, between the participants in the communication system in order to be able to store and process the data from the power tools. “Intended” should be understood in particular to mean specially programmed, designed and / or equipped. The fact that an object is intended for a specific function should be understood in particular to mean that the object fulfills and / or performs this specific function in at least one application and / or operating state. The operating location is formed in particular by a spatially limited area which forms a current location of use for the power tools. The operating location is preferably embodied as a factory site, a company site, a construction site and / or a company location. All power tools of the communication system are preferably located at the same operating location.The network unit is preferably located at the same operating location as the power tools. The power tools are preferably designed as handheld power tools, sensors, fire alarms, cameras, actuating elements, or other electrical devices located at the operating location that enable data exchange with the network unit. Each power tool at the operating location preferably forms an edge node. In this context, an "edge node" is understood to mean, in particular, a participant, in particular a node device, in the communication system, which is connected, in particular, wirelessly to the network unit and is configured to send at least one parameter, in particular a process parameter, influencing parameter, and / or environmental parameter, to the network unit.
[0009] Preferably, the power tools and thus the edge nodes are each directly connected to the network unit, particularly via data transmission. In particular, the power tools have at least one computing unit, at least one memory unit, and at least one communication unit. "Configured" is understood to mean, in particular, being specially programmed, specially designed, and / or specially equipped. The fact that an object is configured for a specific function is understood to mean, in particular, that the object fulfills and / or executes this specific function in at least one application and / or operating state.
[0010] The network unit is preferably provided to record, evaluate, filter, and secure the data from the power tools. The network unit is preferably provided to control or regulate the power tools depending on the recorded data. It is conceivable that the wireless connection between the network unit and the power tools is designed as a Bluetooth, Zigbee, Z-Wave, 6L0WPAN, NFC, WiFi Direct, GSM, LTE, NB-loT, LTE-M, Z-Wave Long Range, Thread, HomeKit, DotDot, and / or a Sidewalk connection. The network unit is particularly designed as a fog unit, a LAN switch, a router, and / or the like in the communication system. The network unit is preferably provided to evaluate the data from the power tools in real time at the operating site, in particular without the need for a particularly time-consuming cloud communication.The network unit preferably has a computing unit for processing the data from the power tools. In one method step, the network unit preferably creates a device map, in particular a three-dimensional map, of the power tools located at the operating location using the data from the power tools. The device map preferably includes all of the power tools located at the operating location. In one method step, the device map is preferably created by the network unit using a signal strength of respective power tool signals from the power tools. In one method step, the network unit carries out theft monitoring. During the theft monitoring, it is preferably at least determined whether one of the power tools leaves its operating location and / or an assigned workstation at the operating location.Preferably, in one method step, the network unit performs a tool diagnosis on the power tools. In this context, a "tool diagnosis" is understood to mean, in particular, a check of the power tools; in particular, fault-free operation and the battery status of the power tools are checked. The end devices are preferably designed as measuring devices, portable end devices, environmental sensors, or the like. In one method step, the end devices preferably access the power tool data via the network unit. In one method step, the end devices access the power tool data directly via the power tools.
[0011] In this context, "cognitive data processing" is understood to mean, in particular, autonomous and intelligent data processing that simulates human thought processes and is intended for learning, reasoning, and / or human-computer interaction. In particular, cognitive data processing consists of recognizing information, processing information, and recording states and behaviors. Preferably, the network unit is configured such that, by means of cognitive data processing, it can derive a conclusion for controlling or regulating the power tools based on at least the recorded data from the power tools.In this context, a "local control and / or regulation loop" is understood to mean, in particular, a control and / or regulation process that is carried out, in particular, at the operating location and is carried out without any communication outside of the network and power tool communication. Preferably, during the process step of controlling or regulating the power tools, a control or regulation signal is transmitted wirelessly from the network unit to the power tools.
[0012] The inventive design of the method for communication in a communication system with power tools advantageously enables efficient data storage and data analysis of power tools at an operating location. Secure communication between the power tools and the network unit can advantageously be provided. Data processing of the power tools can advantageously be carried out quickly and locally at the operating location. In particular, fast and secure data processing can be enabled, regardless of location and, in particular, independent of an internet connection. Optimization of the power tools depending on the conditions at the operating location can advantageously be achieved flexibly.Furthermore, it is proposed that in at least one method step, communication, in particular data exchange, takes place between the network unit and a server unit, in particular a server unit designed as a cloud server, which is arranged in particular outside the operating location of the power tools, wherein the server unit is connected to the network unit in particular by means of an internet connection, in particular a LAN and / or an LTE connection. The server unit is preferably connected to a server unit and a network unit by means of an LPWAN, a Sigfox, a LoRa, an NB-loT and / or a similar connection that appears appropriate to a person skilled in the art for communication and data exchange between a server unit and a network unit. The server unit, in particular the cloud server, is preferably formed from network devices. The network devices are designed in particular as firewalls, storage arrays, backup devices, servers or the like.The fact that the server unit is arranged outside the operating site should be understood in particular to mean that the physical network devices are arranged outside the operating site. Preferably, the network unit is designed as a communication interface between the power tools and the server unit. The network unit is preferably set up to make the data of the power tools located at the operating site available to the server unit, the power tools and / or the end devices. Preferably, the server unit, in particular the cloud server, stores data transmitted from the network unit to the server unit in one method step. In one method step, the server unit preferably makes the stored data available to a user. Preferably, the data is made available to a user via an internet connection.The design of the method advantageously minimizes data flows between the power tools and the server unit. Advantageously, only relevant data can be stored in the server unit.
[0013] It is further proposed that the cognitive data processing be carried out exclusively by the network unit. Preferably, the cognitive data processing is carried out by the network unit without any interaction from the server unit. Preferably, in one method step, the evaluated data from the cognitive data processing is sent to the server unit. By designing the method, data streams between the power tools and the server unit can be advantageously kept low. The network unit can be used to provide closed-loop or closed-loop control of the power tools with an advantageously higher bandwidth. The latency between the power tools and the network unit can advantageously be kept low.Advantageously, the optimization of the power tools to changing conditions, in particular the power tools, their requirements and / or the operating location, can be carried out free of interaction with the server unit.
[0014] It is further proposed that, in at least one method step, the network unit, in particular the gateway, utilizes the computing power of the power tools for data processing. Preferably, the network unit comprises at least one computing unit compatible with the power tools, in particular one similarly configured, a memory unit, and a communication unit. The configuration of the method can advantageously increase the computing power of the network unit.
[0015] It is further proposed that, in at least one method step, the communication, in particular the data exchange, takes place in the communication system between the network unit and the server unit, in particular at preset time intervals. The time interval is preferably a time interval between two scheduled communications between the network unit and the server unit. Preferably, in one method step, the communication between the network unit and the server unit takes place at a time interval of a maximum of 24 hours, preferably a maximum of 12 hours, particularly preferably a maximum of 6 hours, and especially particularly preferably a maximum of 3 hours. However, the time interval could also have a different time interval deemed appropriate by a person skilled in the art.Preferably, in one method step, during communication between the network unit and the server unit, filtered power tool data from the network unit is transmitted to the server unit. The design of the method ensures that important power tool data is secured in the server unit. At the same time, a permanently high data rate load can be avoided. Furthermore, it is proposed that, in at least one method step, the communication, in particular the data exchange, in the communication system be encrypted using asymmetric cryptography, in particular a public key infrastructure.“Asymmetric cryptography” is to be understood in particular as an encryption method for data to be communicated between two identities, in particular between the power tools / the terminal device and the network unit, between the network unit and the server unit, between two power tools / two terminal devices and / or between the power tools and the server unit, wherein each identity has different information for encryption and / or decryption of the data.A "public key infrastructure" should be understood in particular as an encryption method based on asymmetric cryptography, wherein at least one private key and at least one public key exist for an identity configured as the recipient of data, and wherein the public key is configured to encrypt data and the private key is configured to decrypt the data encrypted with the public key. Preferably, authentication and / or data transmission of the power tools is / are carried out by / to the server unit or the network unit via a connection of the power tools to the server unit via the network unit or by a connection of the power tools to the network unit. However, it is also conceivable for authentication and / or data transmission of the power tools to be carried out directly by / to the server unit.It is also conceivable for authentication and / or data transmission to take place directly between the power tools and / or to the power tools themselves. The server unit is preferably designed as the primary decentralized certification authority of the communication system. The network unit is preferably designed as a local certification authority. In this context, a “certification authority” should be understood to mean, in particular, a security tool for authenticating the participants of a communication system. The design of the method can enable advantageously secure communication between a plurality of power tools and / or between power tools and the network unit / server unit. The design can enable advantageously high levels of confidentiality for a data packet. The assignment of power tools in the communication system can be advantageously simple and precise.
[0016] It is further proposed that, in at least one method step, the communication, in particular the exchange of encrypted data, takes place wirelessly and directly between the power tools. Preferably, the communication between the power tools takes place wirelessly, in particular via a WLAN / WiFi connection, a Bluetooth Low Energy connection, and / or LoRaWAN. The design of the method can advantageously provide direct data exchange between power tools.
[0017] Furthermore, it is proposed that, in at least one method step, in addition to the communication between the power tools and the network unit, the communication, in particular the exchange of encrypted data, takes place wirelessly and directly between the power tools and the server unit. By designing the method, advantageously secure communication between the power tool and the server unit can be achieved. Advantageously high functionality of the machine tool can be achieved, in particular because secure networking of the power tool with the server unit, in particular the Internet, can be enabled.
[0018] Furthermore, a communication system for carrying out a method according to the invention is proposed, comprising power tools, each of which forms an edge node in the communication system, a network unit, in particular a network unit designed as a gateway, which is arranged in particular at the operating location of the power tools and which is directly connected to the power tools by means of a wireless connection, in particular a WLAN / WiFi connection, a Bluetooth Low Energy connection and / or a LoRaWAN connection, and at least one terminal device, in particular a computer, a smartphone and / or a charger, which are provided as a user interface for the network unit. The network unit preferably has at least one memory unit, a computing unit and a communication unit. The memory unit of the network unit is preferably provided to store the data of the power tools.The computing unit of the network unit is preferably provided to enable cognitive data processing. The end devices are preferably provided to read and / or process the data of the power tools from the network unit. The communication system preferably has at least one server unit, in particular a cloud server. The server unit is preferably configured such that it provides the end devices with access to read and / or process data. The power tools in the communication system are preferably configured such that they provide the end devices with access to read and / or process data. The communication system, in particular the power tools, is preferably configured such that the power tools can be regulated or controlled directly by the end device.The inventive design of the communication system advantageously enables efficient data storage and data analysis of power tools at an operating location. Secure communication between the power tools and the network unit can advantageously be provided. Data processing of the power tools can advantageously be performed quickly and locally at the operating location. Optimization of the power tools depending on the conditions at the operating location can advantageously be achieved in a flexible manner.
[0019] Furthermore, a power tool of a communication system according to the invention is proposed, which forms an edge node in the communication system, with at least one storage unit, a computing unit and a communication unit which is provided for the transmission, in particular wirelessly, of data to at least one network unit, wherein the communication unit is configured such that the power tool can be controlled or regulated by means of the network unit, depending on cognitive data processing. The storage unit of the power tools is preferably provided for storing data of the power tools. The computing unit of the power tools is preferably provided for processing the data of the power tools. The network unit is preferably provided for secure communication with the network unit, the server unit and / or the terminal devices.The inventive design of the power tool allows for advantageously high functionality, particularly since the power tool can be connected to the network unit and / or the server unit via a secure connection. Advantageously precise monitoring of the power tool can be enabled, particularly when used with other power tools at a shared operating location.
[0020] It is further proposed that the computing unit be configured such that the network unit can access the computing power of the computing unit to perform cognitive data processing. This design of the power tool allows for advantageously efficient data processing.
[0021] The method according to the invention, the communication system according to the invention, and / or the power tool according to the invention should not be limited to the application and embodiment described above. In particular, the method according to the invention, the communication system according to the invention, and / or the power tool according to the invention can have a number of individual elements, components, units, and method steps that differs from the number stated herein to fulfill a functionality described herein. Furthermore, in the value ranges specified in this disclosure, values within the stated limits are also to be considered disclosed and can be used arbitrarily.
[0022] drawing
[0023] Further advantages will become apparent from the following description of the drawings. The drawings illustrate an exemplary embodiment of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also expediently consider the features individually and combine them into useful further combinations.
[0024] Shown are: Fig. 1 a method according to the invention and a communication system according to the invention in a schematic representation, Fig. 2 a part of the communication system according to the invention in a schematic representation, with four power tools which communicate according to the method according to the invention,
[0025] Fig. 3 shows a further part of the communication system according to the invention in a schematic representation, with two network units which communicate according to the method according to the invention and
[0026] Fig. 4 shows a further part of the communication system according to the invention with a server unit and two power tools which communicate with each other according to the method according to the invention, in a schematic representation.
[0027] Description of the embodiment
[0028] Figure 1 shows a method for communication in a communication system 10 with power tools 12. The power tools 12 each form an edge node in the communication system 10. The communication system 10 has a network unit 14, in particular a network unit 14 designed as a gateway. The network unit 14 is arranged at the operating location of the power tools 12. The network unit 14 is wirelessly connected to the power tools 12. The network unit 14 is directly connected to the power tools 12 by means of a WLAN / WiFi connection, a Bluetooth Low Energy connection and / or a LoRaWAN connection. The network unit 14 is connected to at least one terminal device 18, which is provided as a user interface for the network unit 14. The terminal device 18 can be formed, for example, by a computer, a smartphone and / or a charger.In one method step, data from the power tools 12 is collected and processed by the network unit 14 for cognitive data processing. In a further method step, the power tools 12 are controlled or regulated by the network unit 14 using the data by means of a local closed control or regulating circuit. In a method step, the data from the power tools 12 is recorded, evaluated, filtered, and saved by the network unit 14. The communication system 10 shown in Figure 1 has four power tools 12, each of which forms the edge node in the communication system 10. The communication system 10 has the network unit 14, in particular the network unit 14 designed as a gateway. The communication system 10 has three end devices 18. The end devices 18 are designed in particular as a computer, a smartphone, and / or a tablet. The communication system 10 has two local servers 26.The local server 26 is formed in particular by a local data storage unit, in particular a file server. The local server 26 is in particular integrated into a local network of the operating site. The local servers 26 are arranged at the operating site of the power tools 12. The network unit 14 and a server unit 16 of the communication system 10 are configured such that the local servers 26 can access their data. The network unit 14 has a secure data storage unit. The secure data storage unit has two security classes for the stored data. A first of the two security classes is provided for a first part of the data storage unit, which has a normal security level. The first part of the data storage unit contains impersonal data of the participants of the communication system 10.A second of the two security classes is provided for a second part of the data storage, which has a higher security level. The second part of the data storage contains personal data of the participants of the communication system 10.
[0029] In one method step, communication, in particular a data exchange, takes place between the network unit 14 and the server unit 16, in particular a server unit 16 designed as a cloud server. The server unit 16 is arranged outside the operating location of the power tools 12. The server unit 16 is connected to the network unit 14 by means of an internet connection, in particular a LAN and / or an LTE connection. The server unit 16 is designed as a cloud server made up of network devices. The network devices are designed, among other things, as firewalls, storage arrays, backup devices, servers, or the like. The network unit 14 is designed as a communication interface between the server unit 16 and the power tools 12. In one method step, the server unit 16, in particular the cloud server, stores data transmitted from the network unit 14 to the server unit 16.In one method step, the server unit 16 makes the stored data available to a user. The data is made available to a user via an internet connection in one method step.
[0030] The server unit 16 has a secure data storage unit. The secure data storage unit has two security classes for the stored data. A first of the two security classes is provided for a first part of the data storage unit, which has a normal security level. The first part of the data storage unit contains impersonal data of the subscribers of the communication system 10. A second of the two security classes is provided for a second part of the data storage unit, which has an increased security level. The second part of the data storage unit contains personal data of the subscribers of the communication system 10.
[0031] Cognitive data processing is performed exclusively by the network unit 14. The cognitive data processing of the network unit 14 runs independently of any interaction with the server unit 16. For example, in one method step, an increased dust concentration in the air at the operating site is detected by a power tool 12 designed as a dust measuring device. In a further method step, the sensor signal is evaluated by the network unit 14 using data processing. In a further method step, the network unit 14 communicates as a result of the data processing with a power tool 12 designed as a dust extraction unit. In a further method step, the dust extraction unit is switched on, controlled, or regulated by the network unit 14 using communication.In one method step, the evaluated data from the data processing is sent from the network unit 14 to the server unit 16. In one method step, the network unit 14, in particular the gateway, uses the computing power of the power tools 12 for data processing. In one method step, the communication, in particular the data exchange, takes place in the communication system 10 between the network unit 14 and the server unit 16, in particular at preset time intervals. The time intervals can be set by a user via the server unit 16. In one method step, the communication, in particular the data exchange, is encrypted in the communication system 10 using asymmetric cryptography, in particular a public key infrastructure.In one method step, authentication and / or data transmission of the power tools 12 takes place by / to the server unit 16 or the network unit 14 via a connection of the power tools 12 to the server unit 16 via the network unit 14 or with a connection of the power tools 12 to the network unit 14. However, it is also conceivable that in one method step, authentication and / or data transmission of the power tools 12 takes place directly by / to the server unit 16. It is further conceivable that in one method step, authentication and / or data transmission takes place directly by / to the power tools 12 between each other. The server unit 16 is designed as the primary decentralized certification authority of the communication system 10. The network unit 14 is designed as a local certification authority.Both the network unit 14 and the server unit 16 have an additional security memory in which certification data of the participants of the communication system 10 are stored.
[0032] The power tool 12 is configured as the edge node in the communication system 10. The power tools 12 shown in Figure 1 are configured as handheld power tools. However, the power tools 12 could also be configured as smartphones, sensors, fire alarms, actuators, cameras, or the like. The power tool 12 has a memory unit 20, a computing unit 22, and a communication unit 24. The communication unit 24 is provided for transmitting data, in particular wirelessly, to at least the network unit 14. The communication unit 24 is configured such that the power tool 12 can be controlled or regulated by the network unit 14, depending on the cognitive data processing. The computing unit 22 is configured such that the network unit 14 can access the computing power of the computing unit 22 to perform the cognitive data processing (Figure 1).The network unit 14 has computing units, storage units and communication units that are compatible with the power tools 12, in particular of similar design.
[0033] In one method step, communication, in particular the exchange of encrypted data, takes place wirelessly and directly between the power tools 12 (Fig. 2). In one method step, communication between the power tools 12 takes place wirelessly. In one method step, communication between the power tools 12 takes place via the WLAN / WiFi connection, the Bluetooth Low Energy connection, and / or LoRaWAN.
[0034] The communication system 10 in Figure 3 has two network units 14. In one method step, communication takes place wirelessly and directly between the two network units 14. In one method step, the two network units 14 exchange data from the power tools 12 located in the communication system 10. In one method step, the data exchange between the two network units 14 is encrypted using asymmetric cryptography.
[0035] In one method step, in addition to the communication between the power tools 12 and the network unit 14, communication, in particular the exchange of encrypted data, takes place wirelessly and directly between the power tools 12 and the server unit 16 (Fig. 4). In one method step, the data from the power tools 12 is transmitted directly to the server unit 16 and stored in the server unit 16. In one method step, the data stored in the server unit 16 is read by a user using the terminal devices 18. In one method step, the user is verified upon access by the user on the server unit 16. In one method step, the data exchange is encrypted using asymmetric cryptography upon access by the user on the server unit 16.
Claims
Claims 1. A method for communication in a communication system (10) with power tools (12), each of which forms an edge node in the communication system (10), with a network unit (14), in particular a network unit (14) configured as a gateway, which is arranged in particular at the operating location of the power tools (12) and which is directly connected to the power tools (12) by means of a wireless connection, in particular a WLAN / WiFi connection, a Bluetooth Low Energy connection and / or a LoRaWAN connection, and with at least one terminal device (18), in particular a computer, a smartphone and / or a charger, which are provided as a user interface for the network unit (14), characterized in thatthat in at least one process step for cognitive data processing, data from the power tools (12) are collected and processed by the network unit (14), and in at least one further process step, the power tools (12) are controlled or regulated by the network unit (14) by means of a local closed control or regulation loop.
2. Method according to claim 1, characterized in that in at least one method step communication, in particular data exchange, takes place between the network unit (14) and a server unit (16), in particular a server unit (16) designed as a cloud server, which is in particular arranged outside the operating location of the power tools (12), wherein the server unit (16) is in particular connected to the network unit (14) by means of an internet connection, in particular a LAN and / or an LTE connection.
3. Method according to claim 2, characterized in that the cognitive data processing is carried out exclusively by the network unit (14). A method according to any one of the preceding claims, characterized in that in at least one method step the network unit (14), in particular the gateway, uses computing power of the power tools (12) for data processing. A method according to any one of claims 2 to 4, characterized in that in at least one method step the communication, in particular the data exchange, takes place in the communication system (10) between the network unit (14) and the server unit (16), in particular at preset time intervals. A method according to any one of the preceding claims, characterized in that in at least one method step the communication, in particular the data exchange, in the communication system (10) is encrypted by means of asymmetric cryptography, in particular a public key infrastructure.A method according to any one of the preceding claims, characterized in that in at least one method step, communication, in particular the exchange of encrypted data, takes place wirelessly and directly between the power tools (12). A method according to any one of claims 2 to 7, characterized in that in at least one method step, in addition to communication between the power tools (12) and the network unit (14), communication, in particular the exchange of encrypted data, takes place wirelessly and directly between the power tools (12) and the server unit (16). A communication system (10) for carrying out the method according to any one of claims 1 to 8, comprising power tools (12), each of which forms an edge node in the communication system (10), and a network unit (14), in particular a network unit (14) configured as a gateway, which is located, in particular, at the operating location of the power tools (12). The power tool (12) is arranged and is directly connected to the power tools (12) via a WLAN / WiFi connection, a Bluetooth Low Energy connection, and / or a LoRaWAN connection, and to at least one terminal device (18), in particular a computer, a smartphone, and / or a charger, which serves as a user interface for the network unit (14). The power tool (12) of a communication system (10) according to claim 9, which forms an edge node in the communication system (10), comprises at least one storage unit (20), a processing unit (22), and a communication unit (24), which is provided for transmitting data, in particular wirelessly, to at least one network unit (14), characterized in that the communication unit (24) is configured such that the power tool (12) can be controlled or regulated by means of the network unit (14) depending on cognitive data processing.Power tool (12) according to claim 10, characterized in that the computing unit (22) is configured such that the network unit (14) can access computing power of the computing unit (22) to perform cognitive data processing.