Hand-held device with components communicable by means of universal bus connection with equal rights

Abstract

Handheld device (100) for manual operation by a user, wherein the handheld device (100) comprises a processing and drive unit (102) designed for processing a substrate (104) by means of a drive force, and at least one further component (152) that is electromechanically connectable or coupled to the processing and drive unit (102), wherein the processing and drive unit (102) and the at least one further component (152) are designed for equal communication with each other by means of a universal bus connection (150).

Description

[0001] The invention relates to a handheld device, an arrangement and a method for controlling a handheld device designed for manual operation by a user.

[0002] Conventional handheld tools are directly controlled by the user. For example, a drill is controlled by the user inserting a suitable drill bit and then pressing a button on the drill. If a user without specialized knowledge performs a delicate task using such a handheld tool, it can lead to incorrect operation, an undesirable result, and a risk to operational safety.

[0003] DE 10258900 A1 discloses a handheld device according to the preamble of claim 1 and discloses a cordless screwdriver for tightening screw components, comprising a screwdriver motor supplied with electrical voltage by a self-contained power supply arranged on the cordless screwdriver, at least three measuring devices provided for monitoring screw parameters during the screwing process, namely a torque sensor with which the tightening torque generated by the screwdriver motor can be measured, a rotation angle sensor with which the current screwing angle can be measured from a predetermined measuring position; and a current sensor with which the drive current of the screwdriver motor can be measured. Furthermore, monitoring electronics are provided which switch off the screwdriver motor if the tightening torque, the screwing angle, and the drive current are each within a predetermined, associated target parameter window.

[0004] Especially when performing difficult or unusual processing tasks using a handheld device, conventional handheld devices reach their limits.

[0005] It is an object of the present invention to enable the operation of a handheld device in a simple, safe, flexible and fault-resistant manner.

[0006] This problem is solved by the articles with the features according to the independent claims. Further embodiments are shown in the dependent claims.

[0007] According to an embodiment of the present invention, a handheld device for manual operation by a user is provided, wherein the handheld device comprises a processing and drive unit designed for processing a substrate by means of a drive force (in particular a drive torque and / or a longitudinal force), and at least one further component (in particular a token and / or a detection and / or control adapter) that can be electromechanically coupled or coupled to the processing and drive unit, wherein the processing and drive unit and the at least one further component are designed for equal communication with each other by means of a (in particular wired) universal bus connection.

[0008] According to a further embodiment of the present invention, an arrangement is provided which has a handheld device with the features described above and at least one communication partner device which is designed to communicate with at least one of the processing and drive unit and the at least one further component by means of a communication connection different from the (in particular wired) universal bus connection (in particular wireless).

[0009] According to a further embodiment of the invention, a method for controlling a handheld device designed for manual operation by a user, with the features described above, is provided, wherein the method involves processing a substrate using a drive force by means of a processing and drive unit of the handheld device, providing drive energy to power the processing and drive unit (for example, by means of a power supply unit of the handheld device or by connecting the handheld device to a power grid), electromechanically coupling at least one further component of the handheld device with the processing and drive unit (and / or optionally the optional power supply unit), and equivalent communication between the processing and drive unit and the at least one further component (and / or, if present,the optional power supply unit) are interconnected via a universal bus connection.

[0010] Within the scope of this application, a "handheld device" can be understood to mean, in particular, a portable device that can be manually operated and carried by a user and with which the processing of a substrate is made possible. Specifically, a handheld device can be used to drill a hole in the substrate by applying a driving force in the form of a longitudinal force and / or a torque, and / or a driving force in the form of a longitudinal force and / or a torque can be applied to a fastening element to be inserted into a substrate. The driving force can, in particular, be a rotary or rotational driving force, optionally superimposed with a translational driving force. In other words, the handheld device can be designed to drive a machining and drive unit, and thus a drill bit and / or a fastening element, in a rotary manner.Alternatively, the driving force can also be purely translational. A handheld device's driving force can be pneumatic, hydraulic, or electric, generated, for example, by a pneumatic system, a hydraulic system, or an electric motor. Examples of handheld devices include a cordless screwdriver, a cordless drill / driver, a rotary screwdriver, an impact driver, a ratchet screwdriver, a drill, an impact wrench (especially a cordless impact wrench), a hammer drill, and an orbital sander. A handheld device can also be a hairdryer, a vacuum cleaner, or a mortar pump.

[0011] Within the scope of this application, the term "machining and drive device" can be understood to mean, in particular, a mechanism or assembly that enables the machining of a substrate, especially the insertion of a fastener or the removal of material or the creation of a borehole. Specifically, the machining and drive device may include a bit housed in a chuck for actuating a drive in the head of a fastener for inserting (with or without pre-drilling) the fastener into the substrate using a handheld device. It is also possible that the machining and drive device includes a drill bit housed in a chuck for drilling a borehole in a substrate.Furthermore, the machining and drive unit can include a drive unit, such as a (particularly electric, hydraulic, or pneumatic) motor, which provides drive energy (particularly torque) for performing the machining task during operation. The machining and drive unit can be housed in and / or on a common base or main housing of the handheld device.

[0012] Within the scope of this application, the term "substrate" can be understood to mean, in particular, a wall, and furthermore, in particular a vertical wall, a ceiling, a floor, or a fixture (for example, a piece of furniture). Materials for such an anchoring base include, in particular, wood or wood-based materials, but also concrete and masonry materials, metal, or plastic components. Furthermore, such a substrate can also be any composite material made up of several different material components. The substrate may contain cavities or may be solid (i.e., free of cavities).

[0013] Within the scope of this application, the term "additional component" can be understood to mean, in particular, an additional hardware block or functional block that can interact modularly with at least the processing and drive unit and / or the power supply unit to jointly provide a handheld device function. For example, such an additional component could be a token, a detection and / or control adapter, an additional power supply unit, an additional processing and drive unit, etc.

[0014] Within the scope of this application, the term "electromechanical coupling" can be understood to mean, in particular, the formation of a mechanical connection between the individual components or modules (especially processing and drive units, power supply units, tokens, detection and / or control adapters, additional power supply units, additional processing and drive units, etc.) of the handheld device, which simultaneously leads to the formation of an electrical coupling between said components or modules of the handheld device. Thus, for example, a positive-locking coupling of the components or modules can also enable the transmission of an electrical control signal and / or the transfer of electrical drive energy from an electrical contact of one component to an electrical contact of the other mechanically coupled component.

[0015] Within the scope of this application, the term "equal communication via a universal bus connection" can be understood to mean, in particular, a communication architecture between the components or modules of the handheld device in which the communicating components or modules are on the same priority level with regard to the transmission of control signals or other data and / or power transfer. In such equal communication, there is no mutual hierarchy between the components or modules, but rather an equal ranking with regard to the processing and transmission of control signals or other data and / or power transfer. According to embodiments of the invention, a universal bus connection is used for equal communication between the components or modules, i.e., the same communication system is used for all components or modules.A bus can be described as a system for data transmission between multiple components via a shared transmission path. If data transmission is taking place between two components, the other components can refrain from data transmission at the same time to avoid a collision. Depending on the specific implementation, the bus connection can be serial or parallel. In a serial bus connection, data and / or power transmission operations can be carried out sequentially over a single transmission line. In a parallel bus connection, multiple parallel transmission lines can be provided, over which data and / or power transmission operations can also be carried out simultaneously.

[0016] Within the scope of this application, the term "communication partner device" can be understood to mean, in particular, a device with communication resources that can be coupled to one or more components or modules of the handheld device in a way that enables communication. This communication can preferably be wireless, but can alternatively also be wired. For example, a communication partner device can communicate exclusively with one or more tokens of a handheld device, but not with other components (for example, a processing and control unit, a power supply unit, etc.).

[0017] According to an exemplary embodiment of the invention, a handheld device is provided, which is constructed from several components or modules, each comprising at least one processing and drive unit for processing a substrate and at least one other component. Such a handheld device is modular and can be flexibly assembled from the individual components according to the needs of a user or application, particularly by means of an electromechanical coupling. Since a universal bus connection with equal priority of the components regarding their data transmission rights is implemented between said components, particularly fast data transmission (for example, of control signals for operating the handheld device) between the components is enabled.

[0018] In an arrangement consisting of such a handheld device and a communication partner device coupled with at least some of the handheld device's components, communication with the communication partner device can be handled via a different (preferably wireless) communication link than the equivalent universal bus connection. This makes it possible to allow at least one component of the handheld device to communicate with a communication partner device outside the handheld device itself, for example, to enable control of the handheld device by a user from a remote location and / or to transmit information (such as a datasheet or data concerning the processing of a task by the handheld device) via the additional communication link. Using a separate communication link for this purpose increases the flexibility and application possibilities of the arrangement.A basic idea behind exemplary embodiments of the invention can be visualized as follows: different machine components of a handheld device can communicate with each other via an equal bus. This significantly simplifies the communication architecture. Advantageously, such a universal bus system can be used to enable communication between all communicative components of a handheld device.

[0019] Further exemplary embodiments of the handheld device, the arrangement and the method are described below.

[0020] According to an exemplary embodiment, the handheld device can have a power supply unit (for example, at least one battery block) which is designed to provide (in particular, electrical) drive energy to power the processing and drive unit, wherein the at least one further component is electromechanically coupled or connected to the power supply unit, and wherein the processing and drive unit, the power supply unit and the at least one further component are designed to communicate with each other on an equal basis by means of the universal bus connection.Within the scope of this application, the term "power supply unit" can be understood to mean, in particular, a hardware component for providing energy, especially electrical energy, for operating at least one component of the handheld device, in particular for operating the processing and drive unit. For example, the power supply unit can be a battery pack or a rechargeable battery pack. Advantageously, each of the processing and drive unit, the power supply unit, and the at least one other component can be communicatively coupled to at least one other processing and drive unit, power supply unit, and at least one other component via the universal bus connection.

[0021] However, it should be noted that the handheld device can also be designed without a modular power supply unit (such as a battery pack). For example, the handheld device can be powered by a connecting cable with a plug for insertion into a wall socket to connect to a power grid. For example, a handheld device such as a hairdryer can be powered in this way. Thus, handheld devices according to exemplary embodiments of the invention can be operated either wired (i.e., for example, using a power cable and a wall socket) or wirelessly (for example, using a battery pack or other power supply unit).

[0022] According to an exemplary embodiment, the universal bus connection can be a Universal Asynchronous Receiver Transmitter (UART) bus connection. A UART bus connection can be implemented by means of an electronic UART circuit (for example, in the form of at least one processor or part thereof), which can be contained, for example, in one of the respective communicable components (in particular, processing and drive unit, power supply unit, other component(s)) of the handheld device and which can provide an interface (in particular, serial) for data transmission.For example, in a UART bus connection, data can be transmitted between different components as a serial digital data stream with a fixed frame. This frame can include at least one start bit, several (especially five to nine) data bits, an optional parity bit for detecting transmission errors, and at least one stop bit. A receiver component can determine a clock signal from a transmitting component based on the data line clock and synchronize itself accordingly using the start and stop bits. A UART bus connection has proven to be a particularly robust and fast communication interface for the requirements of flexibly combinable modular components in a handheld device.

[0023] Alternatively, the universal, equal bus connection between the components of the handheld device can also be implemented differently, for example by a fieldbus such as a CAN (Controller Area Network) bus, which can use several equal controlling components according to a multi-master principle.

[0024] According to an exemplary embodiment, the universal bus connection can provide peer-to-peer communication between the machining and drive unit, the power supply unit, and at least one other component. Peer-to-peer communication within the handheld device can be understood, in particular, as communication among equals, in which all components (machining and drive unit, power supply unit, and at least one other component) have equal rights to communicate with each other with regard to their authorization profiles and can both receive and provide services. Within the handheld device, however, the individual components can be divided into different groups depending on their qualifications, to which specific properties are assigned.

[0025] According to an exemplary embodiment, the machining and drive unit, the power supply unit and at least one other component can be designed to communicate with each other on an equal basis using the universal bus connection, with the provision that in the event of an exceptional situation being detected (especially in the case of a collision and / or bandwidth shortage), communication between the machining and drive unit and the power supply unit is prioritized.While the principle of equal communication between the components of the handheld device is maintained in the described embodiment, in a specific exceptional case it may be advantageous to prioritize communication between the processing and drive unit and the power supply unit over other communication paths within the handheld device (for example, between a token and the power supply unit or between a detection unit and a control unit). This can mean that a desired data and / or power transfer between the processing and drive unit and the power supply unit is executed with priority (in particular, first), even if, for example, another data and / or power transfer between other components of the handheld device is to be carried out simultaneously or overlapping with it.One scenario in which such prioritization is exceptionally implemented is when the bus connection has limited bandwidth, meaning the universal bus's transmission capacity is insufficient to handle multiple data and / or power transfers simultaneously. In this case, the data and / or power transfer between the processing and drive unit and the power supply unit can be performed first, followed by the competing data and / or power transfer. Another scenario in which such prioritization is exceptionally implemented is when one data and / or power transfer interferes with another.If such a malfunction is anticipated during simultaneous data and / or energy transmission between the processing and drive unit and the power supply unit on the one hand, and another pair of components of the handheld device on the other, or if such a malfunction is detected (e.g., by sensors), the data and / or energy transmission is initially performed between the processing and drive unit and the power supply unit. The described prioritization of communication between the processing and drive unit and the power supply unit advantageously maintains a basic function of the handheld device (e.g., motorized drilling with a drill) and, in exceptional cases, reverts to secondary functions of the handheld device (e.g., targeted control of the drilling to achieve a target configuration using a detection unit and a control unit).

[0026] According to an exemplary embodiment, the machining and drive unit, the power supply unit, and at least one other component can be configured for simultaneous or sequential communication with each other via the universal bus connection. In simultaneous communication, multiple data and / or power transfer operations can be executed concurrently via the universal bus connection, for example, in a parallel bus connection. This allows for a particularly high transmission capacity. In sequential communication, the data and / or power transfer operations are executed one after the other, thereby reducing the risk of collisions or faulty data and / or power transfer operations.

[0027] According to an exemplary embodiment, the at least one further component can include a detection unit configured to detect data indicative of force transmission during processing of the substrate by means of the processing and drive unit. Alternatively, and preferably additionally, the at least one further component can include a control unit configured to control the processing of the substrate according to a target specification. In particular, the control unit can perform said control based on detection data detected by the detection unit. For this purpose, the control unit can be communicatively coupled to the detection unit.According to one such embodiment, a handheld device for processing a substrate is provided, which sensorially detects a force transmission characteristic (for example, a transmitted torque) and, based on this characteristic, adjusts the substrate processing as necessary to perform the processing according to a target specification and to fully or partially compensate for any deviations from the target specification. In this way, using detection and control resources, it can be ensured that even a less experienced user, or a user performing a delicate substrate processing task, can execute the task reliably, precisely, and user-friendly.Such a hand tool can, for example, measure a force-related parameter (such as torque) at its tip using the detection unit, preferably directly at the point of force transmission. The result of this measurement can then be used to determine any deviations from a desired target value and to adjust the control of the hand tool so that any discrepancies between the sensor-characterized actual process and a target process defined by the target value during the execution of a surface preparation task can be fully or partially compensated for or corrected.It is particularly advantageous to design the components used for detection-based control of a surface preparation task to fulfill a target specification—namely, a detection unit and a control unit—as a module or modules that can be easily retrofitted into a conventional handheld device lacking such functionality. For example, such a handheld device can be used to prepare a surface with or without the retrofit kit. This makes it possible to retrofit existing handheld devices with a combined detection and control architecture, or to provide corresponding detection and control modules for multiple handheld devices and attach them to a specific device as needed to expand its functionality.With such a modular architecture, it is possible to adapt a standard handheld device so that actual force transmission parameters can be detected and the handheld device can be controlled in accordance with the detected force transmission parameters to achieve a target specification.

[0028] According to an exemplary embodiment, the detection unit can be attached to or mounted on the processing and drive unit, in particular as a removable detection adapter. Thus, the detection unit can be designed as a separate module that can be optionally attached to the handheld device, and especially to its processing and drive unit. This configuration facilitates the retrofitting of a conventional handheld device with a detection unit. Attaching the detection unit to the processing and drive unit is particularly advantageous because it enables the detection of at least one parameter indicative of power transmission.

[0029] According to an exemplary embodiment, the control unit can be attached to or mounted on the power supply unit, in particular as a detachable control adapter. Thus, the control unit can be designed as a separate module that can be optionally attached to the handheld device, and especially to its power supply unit. This configuration facilitates the retrofitting of a conventional handheld device with a control unit. Attaching the control unit to the power supply unit is particularly advantageous because controlling the energy supply has a sensitive influence on the processing of the substrate. In particular, the control unit can adjust the degree of energy supplied by the power supply unit to the processing and drive unit.

[0030] According to an exemplary embodiment, the detection unit and the control unit can form a physically connected adapter that can be handled separately from the rest of the handheld device, in particular comprising a connecting body that mechanically connects the detection unit and the control unit outside the rest of the handheld device. For example, the connecting body can be a rigid strut that can be manually held by a user to mount the common detection-control module to the handheld device. When mounted on the handheld device, the strut can be arranged at an angle when the processing and drive unit is attached to the surface for horizontal processing of a vertical substrate.

[0031] According to the invention, the at least one further component comprises at least one token configured in this way, wherein the token, when mechanically coupled with at least one of the processing and drive units, the power supply unit, and another of the at least one further component, controls at least a part of the handheld device. Alternatively or additionally, the token can transmit data, in particular parameter values, between components (for example, from a module to the handheld device). For example, the handheld device can access this data during a subsequent or next operation. Within the scope of the present application, a "token" can be understood in particular as an identification mark that can establish a functional coupling between the token and a component (for example, processing and drive unit, power supply unit, detection unit, or control unit) of the handheld device.Such an identification tag can be used, in particular, in a coupled arrangement that may include the token, a mechanically coupled component of the handset, and optionally one or more communication partner devices. Specifically, a token can be a hardware component for identifying and / or authenticating a user to whom the token may be assigned. A token can be an electronic token and, for example, provide a processor-related control, monitoring, and / or communication function. According to the described embodiment, a universally applicable token can be provided for selectively controlling one or more components of the handset, whereby mechanical coupling of the token to a specific component establishes communication between the token and said component via the universal bus connection, thus enabling control.Thus, a user can assign the token to the component to be controlled simply by performing the intuitive process of mechanically coupling the token to a selected component of the handheld device (for example, by inserting the token into a receiving slot of the component). No further user activity is required to assign and control the token and component. Reliable control is enabled after the mechanical coupling is established through preferably encrypted and therefore secure communication between the token and the mechanically coupled component of the handheld device. Operational reliability can be further increased by requiring a specific mechanical connection between the token and the component to establish a control coupling.An owner of a (preferably user-specific) token can thus precisely define which component of the handheld device is to be controlled by the token. Using a token according to an exemplary embodiment of the invention, it is also possible to retrofit a handheld device or a component thereof to provide internet connectivity.

[0032] According to an exemplary embodiment, the token can be designed as a plug-in element for insertion into a receiving opening, in particular designed as an electromechanical interface, of at least one of the processing and drive unit, the power supply unit, and at least one of the at least one other component. The process of inserting the plug-in token into the receiving opening of a selected component of the handheld device then intuitively triggers the formation of a controllable connection between the token and the component. For example, the geometry of the plug-in token can be the inverse of the geometry of the receiving opening in the component. A connection between the token and the component can then be formed according to a lock-and-key principle to establish a communicative coupling via the universal bus connection.By inserting a token into a receiving opening of a component of the handset, the token can be protected from environmental influences during operation of the handset.

[0033] According to an exemplary embodiment, the token can have a processor designed for control-related interaction with the machining and drive unit, the power supply unit and optionally the other of the at least one further component, and a mechanical coupling device designed for mechanical coupling with the machining and drive unit, the power supply unit and optionally the other of the at least one further component, wherein the token is designed, when the mechanical coupling device is mechanically coupled with a respective machining and drive unit, the power supply unit and optionally the other of the at least one further component, to control the respective machining and drive unit, the power supply unit or optionally the other of the at least one further component by means of the processor.The token can be configured, on the one hand, to communicate via the universal bus connection with another component of the handheld device (in particular, with the processing and drive unit, the power supply unit, a detection unit, and / or a control unit), and on the other hand, to communicate via a separate communication link (which may preferably be wireless) with one or more other communication partner devices. In this way, by inserting a token into a component of the handheld device, this component can be connected to an additional communication network (for example, the public internet) via the token. This allows a handheld device or a component thereof to be made internet-enabled. This, in turn, allows documents (for example, an operating manual) to be downloaded from the additional communication network to a component of the handheld device using the token.Alternatively or additionally, the described communicative coupling of a component of the handheld device with the token allows documents to be uploaded from the component to a communication partner device via the additional communication network, for example, data documenting the execution of a processing task by the handheld device.

[0034] According to an exemplary embodiment, the processing and drive unit can be configured for bidirectional communication with the power supply unit via the universal bus connection, the power supply unit can be configured for bidirectional communication with another component configured as a token via the universal bus connection, and the token can be configured for communication with a communication partner device via a wireless communication connection different from the universal bus connection. Such an embodiment is described in Figure 2 depicted.

[0035] According to another exemplary embodiment, the processing and drive unit can be configured for bidirectional communication with a further component designed as a detection and / or control adapter via the universal bus connection, the detection and / or control adapter can be configured for bidirectional communication with the power supply unit via the universal bus connection, each of the processing and drive unit, the detection and / or control adapter and the power supply unit can be configured for bidirectional communication with a respective token of the at least one further component via the universal bus connection, and each of the tokens can be configured for communication with a communication partner device according to a wireless communication connection different from the universal bus connection. Figure 3 shows a corresponding embodiment.

[0036] According to yet another exemplary embodiment, the machining and drive unit can be configured for bidirectional communication with a further component designed as a detection and / or control adapter via the universal bus connection; the machining and drive unit can be configured for bidirectional communication with the power supply unit via the universal bus connection; the machining and drive unit can be configured for bidirectional communication with a further component designed as a further power supply unit via the universal bus connection; the detection and / or control adapter can be configured via the machining and drive unit for bidirectional communication with the power supply unit and with the further power supply unit via the universal bus connection.Each of the processing and drive units, the detection and / or control adapter, the power supply unit, and the additional power supply unit can be configured for bidirectional communication with a respective additional component configured as a token via the universal bus connection, and each of the tokens can be configured for communication with a communication partner device according to a wireless communication connection different from the universal bus connection. Such a configuration is; in , Figure 4 to see.

[0037] According to an exemplary embodiment, the at least one communication partner device can be selected from a group consisting of a computer (for example, a central control computer for controlling several handheld devices or a reordering device for automatically reordering consumables (e.g., screws) consumed by the handheld device) and a portable user device (in particular, a tablet or a mobile phone). Such a computer could, for example, be a central control computer of an organization that controls many decentralized handheld devices or, more generally, many devices in a tradesperson's equipment.It is also possible for such a computer to act as a reordering device, automatically reordering consumables (such as screws or dowels) needed for the handheld device when the communication network indicates that the remaining stock of consumables has fallen below a predetermined level. A communication partner device, particularly one designed as a portable user terminal, also allows the handheld device to be controlled by a user from a remote location, for example, via a smartphone.

[0038] According to an exemplary embodiment, the at least one communication partner device and the handset can be communicatively coupled via the internet, an intranet, or a mobile network. A corresponding communication device of the communication partner device and a communicative component (for example, a token) of the handset can include, for example, a transmitting and / or receiving antenna and an associated processor resource, enabling, for example, wireless communication within such a communication network. In this way, a token of the handset can communicate unidirectionally or bidirectionally with one or more other communication partner devices, beyond controlling a mechanically coupled component of the handset, for example, to download and / or upload information.For example, downloading information from a paired communication partner device to the token can include downloading a user profile or the workflow for a processing task to be executed by a user with a handheld device to which the token is paired. Similarly, uploading information from the token to a paired communication partner device can include uploading tracking data that allows for the monitoring of the token's operation and / or its associated handheld device for documentation and / or quality control purposes. Operational data documenting the processing of a task by a handheld device associated with the token can also be uploaded from the token to a paired communication partner device.

[0039] According to an exemplary embodiment, the communication link, which differs from the universal bus connection, can be a wireless communication link. This enables wireless operation of the handset while simultaneously allowing it to connect to a communication network. Alternatively, the communication link, which differs from the universal bus connection, can be wired.

[0040] According to an exemplary embodiment, the communication link can be a GPS (Global Positioning System) communication link, a BLE (Bluetooth Low Energy) communication link, an ultra-wideband (UWB) communication link, a Bluetooth communication link, a WLAN (Wireless Local Area Network) communication link, a narrowband Internet of Things (IoT) communication link, a 5G communication link, an LTE (Long Term Evolution) communication link, a COTM (Communications On The Move) communication link, a SigFox communication link, and / or a LoRa communication link. A Bluetooth and an IoT communication link are preferred.Such a communication link enables wireless communication of the token via a communication network, which allows for more refined control of a handheld device mechanically coupled to the token using data transmitted via the communication network.

[0041] According to an exemplary embodiment, the handheld device is equipped with the processing and drive unit, and a token is attached to the handheld device as at least one additional component (in particular, inserted into a slot). The token can, for example, be equipped with its own battery and, using the stored operating energy, can download a data set from a communication partner device via the communication network connected to the handheld device (for example, downloading a data sheet with operating parameters for setting a screw from the internet). This data set can then be stored locally on the handheld device, for example, on a storage device of the token or another component. The handheld device can then be connected to a power supply unit (for example, a battery pack).In particular, the machining and drive unit can perform a machining task using energy from the power supply unit and the downloaded data set.

[0042] Exemplary embodiments of the present invention are described in detail below with reference to the following figures. Figure 1 shows an arrangement with a multi-component handheld device and a communication partner device coupled to it in a communicative manner according to an exemplary embodiment of the invention. Figure 2 shows an arrangement with a multi-component handheld device and a communication partner device coupled to it in a communicative manner according to another exemplary embodiment of the invention. Figure 3shows an arrangement with a multi-component handheld device and a communication partner device coupled to it in a communicative manner according to yet another exemplary embodiment of the invention. Figure 4 shows an arrangement with a multi-component handheld device and a communication partner device coupled to it in a communicative manner according to a further exemplary embodiment of the invention. Figure 5 shows a handheld device according to an exemplary embodiment of the invention. Figure 6 shows an arrangement with a handheld device and a token which, according to an exemplary embodiment of the invention, is coupled to a communication partner device in a communication network.

[0043] Identical or similar components in different figures are provided with the same reference numerals.

[0044] Before exemplary embodiments of the invention are described with reference to the figures, some general aspects of embodiments of the invention should be explained:

[0045] Conventional handheld power tools, such as drills, random orbital sanders, etc., can be powered by a battery. For this purpose, the base of the handheld tool and the battery are connected via an electromechanical interface. The battery can not only supply power to the base, but also transmit additional information. This additional information can include, for example, the battery's charge level, the maximum available power, etc. This allows for the detection and appropriate control of faults in the battery and / or the base. For example, if the battery overheats, the maximum operating current can be reduced to a limited maximum current for a specific period, such as only 80% of the maximum power for 15 minutes.

[0046] According to an exemplary embodiment of the invention, a handheld device is created in which a plurality of modular components of the handheld device are interconnected via a bus connection, enabling communication between them as a universal component. The communication between the components equivalent within this communication framework (for example, processing and drive units, power supply units, detection and / or control adapters, tokens, etc.) ensures particularly reliable operation of the overall assembly and enables rapid signal and / or energy transmission. Advantageously, according to an exemplary embodiment of the invention, the direction of communication can be unlimited and thus unrestricted. With multiple components of the handheld device, controlling the communication is therefore quick and easy.For faster signal and / or energy communication between multiple components of a handheld device, equal communication between the components is advantageous according to exemplary embodiments of the invention. Multiple participants can communicate, particularly preferably, via UART.

[0047] Figure 1 shows an arrangement 162 with a multi-component handheld device 100 and a communication partner device 158 coupled to it in a communicative manner according to an exemplary embodiment of the invention.

[0048] More precisely, the arrangement 162 comprises a handheld device 100, designed, for example, as a drill, and a communication partner device 158 (for example, a central computer or a mobile communication device) wirelessly coupled to it via a communication network 180 (for example, the public internet). In the illustrated embodiment, the communication partner device 158 can communicate with a token 156 of the handheld device 100 via a wireless communication link 160. Individual components or modules of the modular handheld device 100, on the other hand, can communicate with each other via a universal bus connection 150. The wired universal bus connection 150 for communication between the components of the handheld device 100 differs from the wireless communication link 160 via the communication network 180.

[0049] The handheld device 100 comprises, as components or modules, a processing and drive unit 102, a power supply unit 110, and further components 152. In the illustrated embodiment, the further components 152 are designed as a token 156, a detection unit 106, a control unit 108, and an additional power supply unit 111. The described components can be combined modularly, for example, by plugging them together to form an electromechanical connection, thereby creating, for example, a positive connection and an electrical communication link for signal and / or power transmission between the components.

[0050] The hand-held device 100 is designed for manual operation by a user and features the aforementioned processing and drive unit 102, which is used for processing a substrate (for example, a concrete wall, see reference numeral 104 in Figure 5) by means of a drive force and for providing the mechanical drive force (or drive torque) used for this purpose by means of a drive motor. In an embodiment of the hand device 100 as a drilling machine, the processing and drive unit 102 for processing the substrate 104 can have a chuck for receiving a drill bit and an electric motor drive for rotating the chuck and a drill bit held therein for processing the substrate 104.

[0051] Furthermore, the handheld device has 100 [units / capacities] according to Figure 1Two separate power supply units 110, 111 are provided, which are designed to supply electrical drive energy for powering a drive motor of the processing and drive unit 102. The two power supply units 110, 111 are each designed as a battery pack and can be used together or individually (i.e., independently of each other) to supply electrical drive energy to the handheld device 100. Alternatively, only a single power supply unit 110 can be provided.

[0052] The detection unit 106, provided as a further component 152, serves to detect indicative detection data for force transmission during the machining of the substrate 104 by means of the machining and drive unit 102. The modular detection unit 106 can, in particular, be attached to the machining and drive unit 102 and thus be designed as a removable detection adapter.

[0053] An additional control unit 108, which can be coupled to the detection unit 106 for communication purposes, can be configured to control the processing of the substrate 104 according to a target specification, based on the detection data. Preferably, the control unit 108 is attached to the power supply unit 110 or to the power supply unit 111 and can preferably be designed as a detachable control adapter.

[0054] When components 102, 106, 108, 110, 111 are electromechanically coupled, each electrically conductive contact element 186 of a respective component 102, 106, 108, 110, 111 can be electrically coupled to another electrically conductive contact element 186 of a coupled component 102, 106, 108, 110, 111. Such a connection also establishes a contact-based communication coupling between two respective components 102, 106, 108, 110, 111.

[0055] Furthermore, the token 156 is shown as an additional component 152, and several tokens 156 can be provided on a handheld device 100. The token 156 serves for mechanical coupling with a selectable component 102, 106, 108, 110, or 111 and, upon establishment of such a coupling, can control the selected and assigned component 102, 110, 111, 106, or 108. More precisely, the token 156 can be designed as a plug-in element for insertion into a receiving opening 159 of the respective component 102, 106, 108, 110, or 111, which is configured as an electromechanical interface. Inserting the token 156 into the selected component 102, 106, 108, 110, or 111 also establishes a contact-based communication coupling.For this purpose, the token 156 can have an electrically conductive contact element 182 which is electrically coupled to a corresponding electrically conductive contact element 184 of the respective component 102, 106, 108, 110, 111 by being inserted into a respective component 102, 106, 108, 110, 111.

[0056] Advantageously, the components 102, 106, 108, 110, 111, and 156 of the handheld device 100 can be configured for equal communication with each other via a universal bus connection 150, preferably a Universal Asynchronous Receiver Transmitter (UART) bus connection, although another equivalent universal bus connection can also be implemented. To provide this communication capability, each of the components 102, 106, 108, 110, 111, and 156 is equipped with a corresponding communication unit 188 (for example, a processor with memory resources). This universal bus connection 150 can advantageously enable peer-to-peer communication between the components 102, 106, 108, 110, 111, and 156.In principle, every data and / or power transfer between any pair of components 102, 106, 108, 110, 111, and 156 within the universal bus connection 150 is treated as equivalent, so no prioritization is applied. For example, data and / or power transfer operations between any pair of components 102, 106, 108, 110, 111, and 156 can be processed according to the "first come, first served" principle, i.e., in the order of the intended data and / or power transfer operations. This can be advantageous, for example, in the case of a serial universal bus connection 150. In the case of a parallel universal bus connection 150, data and / or power transfer operations between multiple pairs of components 102, 106, 108, 110, 111, and 156 can also be processed at least partially simultaneously.The design of the contact-based communication between the components 102, 106, 108, 110, 111 and 156 of the handheld device 100 by means of an equal universal bus connection 150 allows flexible communication between communicating pairs of components 102, 106, 108, 110, 111 and 156 and ensures fast transmission of data packets and / or control signals and / or fast energy transfer.

[0057] According to a specific embodiment, in a very specific scenario, the otherwise maintained principle of the equal universal bus connection 150 can be modified such that, in the event of a collision and / or bandwidth shortage, communication between the processing and drive unit 102 on the one hand and the power supply unit 110 on the other hand is prioritized. If the data transmission capacity available via the universal bus connection 150 is insufficient for the intended amount of data and / or electrical energy to be transmitted between components 102, 106, 108, 110, 111, and 156, or if different data and / or energy transmission processes interfere with each other, a data and / or energy transmission process can first take place between the processing and drive unit 102 on the one hand and the power supply unit 110 on the other.This ensures that even in critical operating conditions a basic function of the handheld device 100 - namely the execution of a processing task and the provision of the electrical energy required for this purpose - remains guaranteed.

[0058] As already mentioned, in addition to its communication capability via the universal bus connection 150 with the other components 102, 106, 108, 110, 111 of the handheld device 100, the token 156 can communicate with the communication partner device 158 via another wireless communication connection 160. To provide this communication capability, the token 156 can be equipped with an additional communication unit 190 (for example, a processor with memory resources). This communication connection 160 can be, for example, a Bluetooth communication connection or a Narrowband Internet of Things (NB-IoT) communication connection. Data can be transmitted unidirectionally or bidirectionally between the handheld device 100 and the communication partner device 158 via the communication connection 160.This data could, for example, be a datasheet or a tax data record that the handheld device 100 downloads from the internet. Furthermore, this data could, for example, be documentation data for recording a processing task performed using the handheld device 100, which is uploaded from the handheld device 100 to the communication partner device 158 for documentation purposes. Since the token 156 handles the communication with the communication partner device 158 via the wireless communication link 160, it is advantageously unnecessary to equip the components 102, 106, 108, 110, 111 of the handheld device 100 with corresponding wireless communication capabilities, without having to forgo wireless communication with the communication partner device 158.By equipping a token 156 with a personalized authorization profile, authorization control for communication via the communication link 160 can also be implemented by inserting a token 156 into a corresponding component 102, 106, 108, 110, 111.

[0059] In a preferred embodiment, communication via UART is implemented at all positions shown in the figures with reference numeral 150. Alternatively, communication between a handheld device 100 and a battery (or other power supply unit 110) can be implemented via UART, and communication between a module and a battery (or other power supply unit 110) can be implemented via an I²C (Inter-Integrated Circuit) data bus.

[0060] Figure 2Figure 162 shows an arrangement 162 with a multi-component handheld device 100 (here designed as a battery-powered handheld device) and a communication partner device 158 coupled to it in a communicative manner according to another exemplary embodiment of the invention.

[0061] In architecture according to Figure 2 The processing and drive unit 102 is configured for bidirectional communication with the power supply unit 110 via the universal bus connection 150. Furthermore, the power supply unit 110 (configured as a battery) is configured for bidirectional communication with another component 152, configured as an IoT token 156, via the universal bus connection 150. The token 156 also serves to communicate with a communication partner device 158 via a wireless communication connection 160, which is different from the universal bus connection 150.

[0062] Figure 2Figure 1 shows an embodiment of a modular architecture for a handheld device 100 with bus connectivity as a universal component. The IoT token 156 can be inserted into the power supply unit 110, which is designed as a battery. Bidirectional (i.e., transmit and receive) UART communication with peer-to-peer functionality is established between the components 102, 110, and 156 of the handheld device 100 via the universal bus connection 150, enabling a multi-client architecture. The transmit and receive communication between the components 102, 110, and 156 is described in Figure 1. Figure 2 The token 156 is represented by two antiparallel arrows. Bluetooth communication is enabled between the token 156 and several communication partner devices 158 (in the illustrated embodiment, a computer, a tablet, and a smartphone) via the communication link 160 (see double arrow). Corresponding antiparallel and double arrows are also shown according to... Figure 3 and Figure 4depicted.

[0063] Thus, according to Figure 2 A uniform communication interface in the form of the universal bus connection 150 is provided between the processing and drive unit 102 (i.e., a functional block of the battery-powered hand tool), the power supply unit 110, and the IoT token 156. The processing and drive unit 102 communicates with the power supply unit 110 (sending and receiving), the power supply unit 110 communicates with the IoT token 156, and the IoT token 156 communicates via radio (e.g., Bluetooth) with communication partner devices 158 (in particular, end devices such as computers, tablets, smartphones, and other smart devices).

[0064] According to one embodiment, the generally equal communication between components via UART is not entirely equal in one exceptional case. Communication between the power supply unit 110 and the processing and drive unit 102 has priority. Other processes, such as downloading datasheets from the internet using token 156, run in the background.

[0065] Figure 3 Figure 162 shows an arrangement 162 with a multi-component handheld device 100 and a communication partner device 158 coupled to it in a communicative manner according to yet another exemplary embodiment of the invention.

[0066] According to Figure 3The processing and drive unit 102 is designed for bidirectional communication with a further component 152, configured as a detection and / or control adapter 154, via the universal bus connection 150. Such a detection and / or control adapter 154 is in Figure 5further described. Furthermore, the detection and / or control adapter 154 is configured for bidirectional communication with the power supply unit 110 via the universal bus connection 150. In addition, the processing and drive unit 102, the detection and / or control adapter 154, and the power supply unit 110 are configured for bidirectional communication with a respective assigned token 156 via the universal bus connection 150. Each token 156 is also configured for communication with a communication partner device 158 via a wireless communication connection 160 that differs from the universal bus connection 150.

[0067] In contrast to the embodiment according to Figure 2 is according to Figure 3Additionally, the detection and / or control adapter 154 (illustratively described as an adapter between the battery and the machine) is provided, which enables the functionality of a detection unit 106 and / or a control unit 108 described herein. Furthermore, according to Figure 3 unlike Figure 2 Two additional tokens 158 are provided, one of which can be inserted into the processing and drive unit 102 and the other into the detection and / or control adapter 154.

[0068] Thus, according to Figure 3 In the form of the universal bus connection 150, a uniform communication interface is provided between handheld machine, adapter, battery and token, which enables data transmission in both sending and receiving directions (see the respective two antiparallel arrows).

[0069] Figure 4Figure 162 shows an arrangement 162 with a multi-component handheld device 100 and a communication partner device 158 coupled to it in a communicative manner according to a further exemplary embodiment of the invention.

[0070] According to the architecture of Figure 4The processing and drive unit 102 is configured for bidirectional communication with a further component 152, configured as a detection and / or control adapter 154, via the universal bus connection 150. Furthermore, the processing and drive unit 102 is configured for bidirectional communication with the power supply unit 110 via the universal bus connection 150. Additionally, the processing and drive unit 102 is configured for bidirectional communication with a further component 152, configured as a further power supply unit 111, via the universal bus connection 150. The detection and / or control adapter 154 is configured via the processing and drive unit 102 for bidirectional communication with the power supply unit 110 and with the further power supply unit 111 via the universal bus connection 150.The processing and drive unit 102, the detection and / or control adapter 154, the power supply unit 110, and the additional power supply unit 111 are each configured for bidirectional communication with a respective additional component 152, configured as a token 156, via the universal bus connection 150. Each of these tokens 156 is also configured for communication with a communication partner device 158 via a wireless communication connection 160, which differs from the universal bus connection 150.

[0071] According to Figure 4Two batteries are therefore provided. The universal bus connection 150 enables a standardized communication interface between a handheld device, an adapter, two batteries, and multiple IoT tokens. The handheld device communicates with the adapter and with the two batteries. Sequential and / or parallel communication is possible. The adapter communicates with the two batteries via the handheld device. Furthermore, the handheld device communicates with an IoT token. The adapter also communicates with an IoT token. Each of the batteries also communicates with an IoT token. One or more of the IoT tokens communicate wirelessly (e.g., via Bluetooth) with end devices (computers, tablets, smartphones, and other smart devices).

[0072] Figure 5 Figure 100 shows a handheld device according to an exemplary embodiment of the invention. According to Figure 5The detection unit 106 and the control unit 108 are configured as an adapter 154 that is physically connected to each other and can be handled separately from the rest of the handheld device 100, and which has a connecting body 116 outside the rest of the handheld device 100 that mechanically connects the detection unit 106 and the control unit 108.

[0073] Figure 5 Figure 1 shows a handheld device 100, designed, for example, as a cordless impact wrench, according to an exemplary embodiment of the invention. With an impact wrench, the tightening and loosening of fasteners 112 (for example, screws) can be carried out by pulsed rotary movements. Figure 5The illustrated cordless impact wrench is used to insert a fastening element 112, designed as a screw, into a pre-drilled hole 140 (or alternatively without pre-drilling) in a substrate 104, for example a masonry wall. To simplify and improve this substrate preparation task, the handheld device 100 can be specially designed, as described in more detail below.

[0074] The illustrated handheld device 100 is designed for manual operation by a user. The user can hold the handheld device 100 by a handle 142 and press an actuation button 144 on the handle 142 to activate it. A housing 146 of the handheld device 100 encloses a main body of the handheld device 100, which contains functional components (for example, an electric drive motor) of the processing and drive unit 102 of the handheld device 100. In particular, the processing and drive unit 102 has a chuck at a substrate-side end for processing the substrate 104, into which a suitable tool element can be inserted for screwing the fastening element 112 into the substrate 104, depending on the substrate processing task to be performed.Such a tool element can, for example, be a bit with a drive (in particular a Phillips head bit) for engaging a drive (in particular a Phillips head) in a head of the fastening element 112. Such a tool element attached to the machining and drive unit 102 can be set into rotation by means of the machining and drive unit 102, which can be transmitted to the fastening element 112, thereby setting it into the substrate 104. In this way, a force transmission in the form of torque and / or impacts can be transferred from the hand tool 100 to the fastening element 112 by means of the machining and drive unit 102, thereby inserting the fastening element 112 into the substrate 104 and securing it there.

[0075] In the illustrated embodiment, a power supply unit 110, designed as a removable and rechargeable battery module, serves to provide electrical drive energy for powering the processing and drive unit 102. For recharging after depletion, the power supply unit 110, designed as a battery module, can be temporarily removed from the handle 142 on the main body and recharged, for example, by means of a charging unit connected to a power grid.

[0076] If a suitable tool element (in particular a suitable bit) is clamped in the machining and drive unit 102, the output of the tool element engages the drive of the fastening element 112. If the user then presses the actuating button 144, electrical drive energy is transferred from the power supply unit 110 to the drive motor of the machining and drive unit 102, thereby inserting the fastening element 112 into the pre-drilled hole 140 in the substrate 104.

[0077] For example, a detection unit 106 can be attached to the machining and drive unit 102 for retrofitting or customizing the modular handheld device 100. This detection unit 106 is designed to detect indicative detection data for force transmission during machining of the substrate 104 using the machining and drive unit 102. More precisely, the detection unit 106 has one or more sensors, for example, a torque sensor for detecting a transmitted torque, a longitudinal force sensor for detecting a transmitted longitudinal force or impact force, etc. By detecting a transmitted torque and / or a transmitted longitudinal force or impact force, the force transmission from the handheld device 100 to the fastening element 112 and the substrate 104 can be sensorially detected.

[0078] Furthermore, a control unit 108 can be inserted, for example, between the main body, which is bounded by the device housing 146, and the detachable power supply unit 110. The control unit 108 can be coupled to the detection unit 106 for communication purposes, for example via an electrical connecting line 118 in a connecting body 116 of the adapter 154, which may be designed, for example, as struts. As in Figure 5As shown, the detection unit 106 and the control unit 108 are mechanically and communicatively connected by the connecting body 116 outside the rest of the handheld device 100. Advantageously, the connecting body 116 can provide both a communication link and a mechanical connection between the detection unit 106 and the control unit 108. Detection data, characterized by the force transmission during processing of the substrate 104, can be transmitted to the control unit 108 via the communication device 119. The control unit 108 can have a processor that can process the detection data in order to control or regulate the processing of the substrate 104 based on this data. In particular, the control unit 108 can compare the actual processing of the substrate 104 with a target value.The target specification can indicate how the substrate 104 should ideally be processed using the handheld device 100. If the control unit 108 detects discrepancies between the actual processing and the target specification, it can adjust the control of the functional components of the handheld device 100 (in particular the processing and drive unit 102) to ensure compliance with, or at least a better approximation of, the target specification during further processing of the substrate 104. For this purpose, one or more operating parameters of the handheld device 100 can be set, changed, or adjusted. For example, the transmitted torque, the number and / or intensity of applied blows, etc., can be adjusted accordingly by the control unit 108.In particular, the control unit 108 can, for this purpose, control the power supply unit 110 in a suitable manner to provide electrical energy to the drive motor in the device housing 146, or limit the electrical energy accordingly to meet the target specification. Advantageously, the control unit 108 is adapted at its opposite ends to the geometry of the power supply unit 110 and the device housing 146, respectively, so that the control unit 108 can be positively fitted between the processing and drive unit 102 and the power supply unit 110 and can directly control the components of the handheld device 100 described above.

[0079] Advantageously, the handheld device 100 is designed to be selectively operable with or without the detection unit 106 and / or with or without the control unit 108, so that the handheld device 100 is also operational without the detection unit 106 and / or control unit 108.

[0080] Advantageously, the detection unit 106 can be configured to detect the indicative detection data for force transmission during machining of the substrate 104 by means of the machining and drive unit 102 at the beginning of a machining task. Thus, when the user begins to rotate the fastening element 112, which engages with the tool element on the machining and drive unit 102, by actuating the operating button 144 and thereby inserting it into the pre-drilled hole 140 in the substrate 104, the detection of torque and / or axial force can begin. The corresponding detection data are transmitted from the detection unit 106 to the control unit 108 via the connecting line 118.In the illustrated embodiment, the control unit 108 is configured to adjust the further processing of the substrate 104 based on the detection data detected at the start of the machining task, so that the machining task is carried out in accordance with a target specification. For example, if the control unit 108 determines that the actually transmitted sensor-detected torque is too high or too low compared to a target torque defined in the target specification, the control unit 108 can influence the power supply unit 110 and thus also the drive motor in the device housing 146, so that an actual torque of a suitable magnitude corresponding to the target torque is subsequently exerted by the machining and drive unit 102 on the fastening element 112.

[0081] Figure 5also shows that the handheld device 100 (for example, the device housing 146) has a receiving opening 159 for inserting a Figure 5 Token 156, which is not shown, may be intended for this purpose. Token 156 may have functionality as described in Figures 1 to 4 or Figure 6 is described.

[0082] Figure 6 shows an arrangement 162 with a handheld device 100 and a token 156, which, according to an exemplary embodiment of the invention, is coupled in a communication network 180 with one or more communication partner devices 158.

[0083] The token 156 has a processor 166, which is used for control-related interaction with a processing and drive unit 102 and a power supply unit 110 (and optionally at least one further component 152, for example a detection unit 106 and / or a control unit 108, not shown in Figure 6) of the handheld device 100. Furthermore, the token 156 has an electromechanical coupling device 170, which is designed for electromechanical coupling with the processing and drive unit 102 (comprising, among other things, a drive motor 199) and the power supply unit 110 (and optionally with at least one further component 152). This mechanical coupling can be accomplished, for example, by means of a receiving opening 159 of the respective component 102, 110, 152. In addition, the token 156 can be configured, when the electromechanical coupling device 170 is mechanically coupled with a respective processing and drive unit 102 or the power supply unit 110 (or 152), to allow for the connection of the processing and drive unit 102 or the power supply unit 110 (or 152).optionally, the processor 166 can be used to control the respective processing and drive unit 102 or the power supply unit 110 (or the optional at least one further component 152).

[0084] When an electromechanical connection is formed between the token 156 and the handheld device 100 by inserting the electromechanical coupling device 170 of the token 156 into the receiving opening 159 of the handheld device 100, a communication link is simultaneously established between the token 156 and other components of the handheld device 100. More precisely, in the illustrated embodiment, an electrical connection is formed between one or more electrical contact elements 182 on an outer surface of the token 156 and one or more electrical contact elements 184 on an inner surface of the receiving opening 159 of the handheld device 100. The formation of a positive fit between the token 156 and the receiving opening 159 in the handheld device 100 thus results in the formation of an electrical contact and therefore an electrically conductive connection between the token 156 and the other components of the handheld device 100.This electrical connection also forms an electrical communication link between the token 156 and the other components of the handheld device 100, which in particular enables the transmission of electrical signals (for example, control signals) and / or electrical energy.

[0085] Advantageously, a token 156, once inserted into the receiving opening 159 of the handset 100 and thus connected to the other components of the handset 100, can be configured to control the handset 100 or a component 102, 110, 152. Operation of the handset 100 in a state without coupling to the token 156 may be prevented. In other words, the use of the handset 100 can only be enabled after successful coupling of the token 156 within the handset.

[0086] The handheld device 100 can have a control unit 138 which can be configured to control the handheld device 100 (for example, if a handheld device 100 is not coupled with a token 156) and / or to interact with a processor 166 of a coupled token 156.

[0087] Advantageously, the handheld device 100 can be configured for pairing with the tokens 156 in such a way that the use of a handheld device 100 paired with a token 156 by a user can be authorized, configured, and / or prevented based on a personalized authorization profile. More precisely, a user of a token 156 can be assigned a user profile that may contain information regarding that user's ability and authorization to use specific handheld devices 100, but may also define usage restrictions and / or prohibitions for specific handheld devices 100.Such a user profile can be stored in a storage device 128 of a token 156, in a storage device 141 of the handheld device 100 and / or in a database 132 of a communication partner device 158 (in the illustrated embodiment a central control unit) that is coupled with the token 156 via the communication network 180.

[0088] The structure of Token 156, which is in Figure 6as detailed below. The aforementioned token 156, for example, serves for user-specific control of a selectable handheld device 100 and, for this purpose, includes the processor 166. The processor 166 can, for example, be embedded inside the token 156 and thus protected. The processor 166 can, for example, be designed as a microprocessor. It is possible to design the processor 166 as part of a processor unit, as a complete processor unit, or as a plurality of interacting processor units. The processor 166 of the token 156 serves for control-related interaction with the handheld device 100 or one of its components 102, 110, 152.

[0089] Furthermore, the token 156 contains a cryptographic unit 168, which supports cryptographic communication of the token 156. More precisely, the cryptographic unit 168 enables encrypted communication between the token 156 and a communication partner device 158 in the communication network 180. For example, such encrypted communication, supported by the cryptographic unit 168, can take place between the token 156 on the one hand and a central control unit, a user terminal, and / or a reordering device as the communication partner device 158 on the other. Encrypted communication increases data security when communicating via the communication network 180.Optionally, it is also possible to carry out encrypted communication between the token 156 and the handheld device 100 mechanically coupled to it using the cryptographic unit 168, for example when transmitting control signals from the token 156 to the handheld device 100.

[0090] As already mentioned, the token 156 has the electromechanical coupling device 170, which is designed for preferably positive-locking mechanical coupling with the receiving opening 159 of the handheld device 100 or one of its components 102, 110, 152. The electromechanical coupling device 170 of the token 156 is defined by its external shape, which is the inverse of the internal shape of the receiving opening 159.

[0091] Advantageously, the token 156 can be configured to control the operation of the handheld device 100 by means of the processor 166 (and optionally the cryptographic unit 168 using cryptographic communication) when the electromechanical coupling device 170 is mechanically coupled to a receiving opening 159 of the handheld device 100. More precisely, the processor 166 of the token 156 can control the handheld device 100 so that the desired processing task is carried out as intended. For example, the processor 166 of the token 156 can specify the torque applied by a drill bit of a handheld device 100 configured as a drill to a substrate 104 in which a borehole is to be drilled.

[0092] Advantageously, the token 156 can be configured for user-specific control of the handheld device 100, particularly based on a personalized authorization profile of the user. For this purpose, the token 156 can be equipped with an identification device 172, which is configured to identify a user of the token 156. The identification device 172 is formed by a sensor 174, configured, for example, as a fingerprint sensor, and the part of the processor 166 that identifies the user from sensor data acquired by means of the sensor 174, for example, by pattern matching with reference data. More precisely, the sensor 174 is configured, for example, as a fingerprint sensor, onto which a user places a finger for identification. Advantageously, the sensor 174 can therefore be located in a surface area of ​​the token 156.The sensor 174 can then determine whether the data it captures indicates that the user is authorized, and if so, which user it is. This determination can be made by comparing the sensor-captured data with sensor reference data (for example, a fingerprint of an authorized user stored in a database).

[0093] Processor 166 can be configured to control the operation of the handset 100 paired with token 156 in accordance with the user authorization profile of the token 156 user. Specifically, processor 166 can be configured to only allow the operation of the handset paired with token 156 if prior user identification via token 156 has resulted in the identification of a user who is authorized to operate the handset 100. Advantageously, processor 166 of token 156 can be configured to allow, configure, and / or prevent the user's use of the handset 100 upon pairing, based on the personalized authorization profile.

[0094] The token 156 can, for example, be designed as a plug-in element for insertion into the receiving opening 159. Each token 156 can, for example, be designed as a circular disc with a diameter ranging from 2 cm to 4 cm, making it easy for a user to handle and space-saving to insert into a handheld device 100. Furthermore, the electromechanical coupling device 170 of the token 156 is designed to allow the token 156 to be detachably coupled to the handheld device 100. Thus, a user can use a token 156 (assigned to them, for example) successively in combination with different handheld devices 100, whereby the selection of an addressed handheld device 100 can be achieved simply by mechanically inserting the electromechanical coupling device 170 of the token 156 into a corresponding receiving opening 159 of a target handheld device 100 or a target component 102, 110, 152.

[0095] As already mentioned, the Token 156 can have one or more sensors 174, including the user identification sensor described above. Alternatively or additionally, the Token 156 can be equipped with, for example, a gyroscope, a location sensor, and / or a temperature sensor. A gyroscope can detect, for instance, if a handheld device 100 containing the Token 156 falls and is consequently subjected to a shock. In this case, the handheld device 100 can be switched off as a precaution to prevent user injury and damage. A location sensor (for example, a GPS sensor) of the Token 156 allows the current position of the Token 156 and the handheld device 100 to be determined. The use of a handheld device 100 can be restricted (for example, in a user profile) to a specific area (such as a particular construction site), for example, to prevent misuse.If a location sensor detects that a handheld device 100, along with token 156, is located in an unauthorized area, the processor 166 of token 156 can switch off or deactivate the handheld device 100 to prevent misuse. A temperature sensor on token 156 can detect the ambient temperature. If a processing task (for example, setting a chemical anchor) is only permitted under certain temperature conditions, operation of the handheld device 100 can be prevented for safety reasons if a temperature condition is not met based on the detected temperature sensor data.

[0096] Optionally, the token 156 has a power supply unit 176, for example, a replaceable battery or a rechargeable battery. In this case, the token 156 can be operated autonomously. Alternatively or additionally, the token 156 can be powered by the power supply unit 110 of the handheld device 100 when the token 156 is inserted into the receiving opening 159.

[0097] Figure 6 The figure further shows that the token 156 can have a communication antenna 178, for example, a WLAN antenna. It is also possible, and advantageous for reasons of diversity, if the token 156 has several communication antennas 178 that, for example, support different communication protocols. For example, a communication antenna 178 can be implemented in the form of a planar coil, preferably arranged in a surface area of ​​the token 156.

[0098] The in Figure 6The depicted token 156 has a communication device 119, which can be formed by the interaction of the communication antenna 178 with a corresponding part of the processor 166 and optionally with the cryptographic unit 168. The communication device 119 serves to enable the token 156 to communicate with one or more communication partner devices 158 via the communication network 180. This network can be, for example, the public internet, an intranet, or a mobile network.

[0099] For example, it is possible to establish a communicative connection between the token 156 and an app or other software stored on a portable user device of the communication partner devices 158 via the communication network 180. In the illustrated embodiment, the user device is a mobile device with a user interface with which a user can control and / or monitor the communicatively connected token 156 and / or a connected handset 100. Using the user device, a user can also control and / or monitor the handset 100 from a remote location. For example, a token 156 can connect to the user device, which is configured here as a mobile device, via an app. Data, such as a user profile of a user of the user device, can be downloaded to the token 156 using the user device.Furthermore, it is possible that the token 156 accesses resources of the user device during operation, for example, a processor contained therein and / or a camera of the user device.

[0100] Alternatively or additionally, it is possible to establish a communicative link between the token 156 and a central control unit as a communication partner device 158 via the communication network 180. The central control unit can be equipped with access rights to a database 132 from which data records can be transmitted to the token 156. Such data records could, for example, be a user profile requested by the token 156, an operational data record for executing a processing task with a handheld device 100 mechanically coupled to the token 156, etc.Thus, the token 156 can be configured to download a data set, in particular a data set defining an operating sequence of the handheld device 100 and / or a data set defining a user profile of a user of the token 156, by means of the communication device 119 from the central control device or another communicatively coupled node of the communication network 180.

[0101] Furthermore, it is possible to transmit data from the token 156 to the central control unit for storage in database 132 via the communicative coupling between the token 156 and the central control unit. Such data could, for example, be tracking data that allows the tracking of a handheld device 100 coupled to a respective token 156. Thus, the token 156 can be configured to upload a data record, in particular a data record containing operating results and / or operating parameters of the handheld device 100, to the control unit or another communicatively coupled communication partner device 158 via the communication device 119.

[0102] It should also be noted that "having" does not exclude any other elements or steps, and "a" or "an" does not exclude a plurality. Furthermore, it should be noted that features or steps described with reference to one of the above embodiments may also be used in combination with other features or steps of other embodiments described above. Reference numerals in the claims are not to be considered as limitations.

Claims

1. A hand-held device (100) for manual actuation by a user, wherein the hand-held device (100) comprises: a processing and drive device (102), which is configured for processing a substrate (104) by means of a driving force; and at least one further component (152), which is electromechanically couplable or coupled to the processing and drive device (102), characterized in that the at least one further component (152) comprises at least one token (156) configured in such a way that the token (156), when mechanically coupled to at least one of the processing and drive device (102), a power supply device (110) and another of the at least one further component (152), controls at least a part of the hand-held device (100), and / or transmits data, in particular parameter values, between components (102, 110, 152), wherein in particular the token (156) is configured as a plug-in element for insertion into a receiving opening (159), in particular configured as an electromechanical interface, of at least one of the processing and drive device (102), the power supply device (110) and the other of the at least one further component (152); wherein the processing and drive device (102) comprises a communication unit (188) for providing a communication capability; and the processing and drive device (102) and the at least one further component (152) are configured for communicating with one another on an equal basis by means of a universal bus connection (150).

2. The hand-held device (100) according to claim 1, comprising the power supply device (110), for example at least one rechargeable battery block, which is configured for providing driving power for driving the processing and drive device (102); wherein the at least one further component (152) is electromechanically couplable or coupled to the power supply device (110); and wherein the processing and drive device (102), the power supply device (110) and the at least one further component (152) are configured for communicating with one another on an equal basis by means of the universal bus connection (150).

3. The hand-held device (100) according to claim 1 or 2, comprising at least one of the following features: wherein the universal bus connection (150) is a Universal Asynchronous Receiver Transmitter bus connection; wherein the universal bus connection (150) provides a peer-to-peer communication between the processing and drive device (102), the power supply device (110) and the at least one further component (152); wherein the processing and drive device (102), the power supply device (110) and the at least one further component (152) are configured for communicating with one another on an equal basis by means of the universal bus connection (150) with the proviso that a communication between the processing and drive device (102) and the power supply device (110) is prioritized in the event of a collision and / or in the event of a bandwidth shortage; wherein the processing and drive device (102), the power supply device (110) and the at least one further component (152) are configured for communicating with one another simultaneously or sequentially by means of the universal bus connection (150).

4. The hand-held device (100) according to any one of claims 1 to 3, wherein the at least one further component (152) comprises: a detection unit (106), which is configured for detecting detection data indicative of a force transmission when processing the substrate (104) by means of the processing and drive device (102); and / or a control unit (108), which is configured for controlling the processing of the substrate (104) in accordance with a setpoint specification, in particular based on detection data detected by means of a detection unit (106).

5. The hand-held device (100) according to claim 4, comprising at least one of the following features: wherein the detection unit (106) can be attached or is attached to the processing and drive device (102), in particular is configured as a removable detection adapter; wherein the control unit (108) can be attached or is attached to the power supply device (110), in particular is configured as a removable control adapter; wherein the detection unit (106) and the control unit (108) form a physically connected adapter (154) which can be handled separately from the rest of the hand-held device (100), in particular comprising a connecting body (116) which mechanically connects the detection unit (106) and the control unit (108) outside the rest of the hand-held device (100).

6. The hand-held device (100) according to any one of the preceding claims, wherein the token (156) comprises: a processor (166), which is configured for control-related interaction with the processing and drive device (102), the power supply device (110) and optionally the other of the at least one further component (152); and a mechanical coupling device (170), which is configured for mechanical coupling to the processing and drive device (102), the power supply device (110) and optionally the other of the at least one further component (152); wherein the token (156) is configured, when mechanically coupling the mechanical coupling device (170) to a respective one of the processing and drive device (102), the power supply device (110) and optionally the other of the at least one further component (152), to control the respective one of the processing and drive device (102), the power supply device (110) or the optional other of the at least one further component (152) by means of the processor (166).

7. The hand-held device (100) according to any one of the preceding claims, wherein the token (156) is configured for communicating with a communication partner device (158) by means of an, in particular wireless, communication connection (160) different from the universal bus connection (150).

8. The hand-held device (100) according to any one of claims 2 to 7, wherein: the processing and drive device (102) is configured for bidirectionally communicating with the power supply device (110) by means of the universal bus connection (150); the power supply device (110) is configured for bidirectionally communicating with a further component (152) configured as a token (156) by means of the universal bus connection (150); and the token (156) is configured for communicating with a communication partner device (158) by means of a wireless communication connection (160) different from the universal bus connection (150).

9. The hand-held device (100) according to any one of claims 2 to 7, wherein: the processing and drive device (102) is configured for bidirectionally communicating with a further component (152) configured as a detection and / or control adapter (154) by means of the universal bus connection (150); the detection and / or control adapter (154) is configured for bidirectionally communicating with the power supply device (110) by means of the universal bus connection (150); each of the processing and drive device (102), the detection and / or control adapter (154) and the power supply device (110) is configured for bidirectionally communicating with a respective token (156) of the at least one further component (152) by means of the universal bus connection (150); and each of the tokens (156) is configured for communicating with a communication partner device (158) by means of a wireless communication connection (160) different from the universal bus connection (150).

10. The hand-held device (100) according to any one of claims 2 to 7, wherein: the processing and drive device (102) is configured for bidirectionally communicating with a further component (152) configured as a detection and / or control adapter (154) by means of the universal bus connection (150); the processing and drive device (102) is configured for bidirectionally communicating with the power supply device (110) by means of the universal bus connection (150); the processing and drive device (102) is configured for bidirectionally communicating with a further component (152) configured as a further power supply device (111) by means of the universal bus connection (150); the detection and / or control adapter (154) is configured for bidirectionally communicating with the power supply device (110) and with the further power supply device (111) by means of the universal bus connection (150) by means of the processing and drive device (102); each of the processing and drive device (102), the detection and / or control adapter (154), the power supply device (110) and the further power supply device (111) is configured for bidirectionally communicating with a respective further component (152) configured as a token (156) by means of the universal bus connection (150); and each of the tokens (156) is configured for communicating with a communication partner device (158) by means of a wireless communication connection (160) different from the universal bus connection (150).

11. The hand-held device (100) according to any one of claims 1 to 10, configured as at least one from a group consisting of a drilling machine, a cordless screwdriver, a cordless drill screwdriver, a rotary screwdriver, a pulse screwdriver, a ratchet screwdriver, an impact screwdriver, in particular a cordless impact screwdriver, a hammer drill, and an eccentric grinder.

12. An arrangement (162), comprising: a hand-held device (100) according to any one of claims 1 to 11; and at least one communication partner device (158), which is configured for communicating with at least one of the processing and drive device (102) and the at least one further component (152) by means of a communication connection (160) different from the universal bus connection (150).

13. The arrangement (162) according to claim 12, comprising at least one of the following features: wherein the at least one communication partner device (158) is configured for communicating with a power supply device (110), which is configured for providing driving power for driving the processing and drive device (102), by means of the communication connection (160) different from the universal bus connection (150); wherein the at least one communication partner device (158) is selected from a group consisting of a computer, in particular a central control computer or a post-order device, and a portable user terminal, in particular a tablet or a mobile radio device; wherein the at least one communication partner device (158) and the hand-held device (100) are communicably coupled or couplable by means of a communication network (180), in particular the Internet, an intranet or a mobile radio network; wherein the communication connection (160) different from the universal bus connection (150) is a wireless communication connection; wherein the communication connection (160) is a Bluetooth communication connection, a GPS communication connection, a BLE communication connection, an ultra-wideband communication connection, a WLAN communication connection, a Narrowband Internet of Things communication connection, a 5G communication connection, an LTE communication connection, a COTM communication connection, a SigFox communication connection and / or a LoRa communication connection.

14. A method for controlling a hand-held device (100) configured for manual actuation by a user according to any one of claims 1 to 11, wherein the method comprises: processing a substrate (104) using a driving force by means of a processing and drive device (102), which comprises a communication unit (188) for providing a communication capability; providing driving power for driving the processing and drive device (102); electromechanically coupling at least one further component (152) to the processing and drive device (102); and communicating with one another on an equal basis between the processing and drive device (102) and the at least one further component (152) by means of a universal bus connection (150).

Images