Communication architecture for a token of a handheld device

Abstract

The invention relates to a token (100) for plugging into a rechargeable battery block (142) of a handheld device (102). The token (100) has a communication device (118) for providing a communication functionality when the token (100) is plugged into a token receiving area (152) of the rechargeable battery block (142) in a removable manner, wherein the communication device (118) is designed to be supplied with electric energy from the rechargeable battery block (142) after being plugged in and to wirelessly transmit an initial communication message (200) for establishing a communication connection to one or more communication partner devices while being supplied with the electric energy. A housing body (101) of the token (100) has electric contacts (156) solely for establishing an energy supply connection between the token (100) and the rechargeable battery block (142).

Description

[0001] Communication architecture for tokens of a craftsman device

[0002] The invention relates to a token for insertion into a battery block of a power tool, an arrangement and a method.

[0003] Conventional handheld devices are controlled directly by the user. For example, a drill is controlled by inserting a suitable drill bit into the device and then pressing a button on the drill. If a user without specialized knowledge performs a delicate task using such a handheld device, incorrect operation, undesirable results, and a risk to operational safety can occur.

[0004] DE 10258900 A1 discloses a cordless screwdriver for tightening screw components, comprising a screwdriver motor that is supplied with electrical voltage by a self-contained power supply arranged on the cordless screwdriver, at least three measuring devices provided for monitoring screwing parameters during the screwing-in process, namely a torque sensor with which the tightening torque generated by the screwdriver motor can be measured, a rotation angle sensor with which, starting from a predetermined measuring position, the current screwing-in angle can be measured, and a current sensor with which the drive current of the screwdriver motor can be measured. Furthermore, monitoring electronics are provided which shuts off the screwdriver motor when the tightening torque, the screwing-in angle, and the drive current are each within a predetermined, assigned target parameter window.

[0005] Conventional handheld devices reach their limits, particularly when it comes to difficult or unusual processing tasks using a handheld device.

[0006] It is an object of the present invention to enable operation of a handheld device in a simple, secure, and error-robust manner. This object is achieved by the subject matter having the features according to the independent patent claims. Further embodiments are shown in the dependent claims.

[0007] According to one embodiment of the present invention, a token is provided for insertion into a battery pack of a power tool, wherein the token has a communication device for providing a communication functionality when the token is removably inserted into a token receptacle of the battery pack, wherein the communication device is designed to be supplied with electrical energy from the battery pack after insertion (for example, triggered by the insertion) and, upon supply with the electrical energy, to wirelessly send an initial communication message for establishing a communication connection to one or more communication partner devices. Preferably, a housing body of the token has electrical contacts exclusively for forming a power supply connection between the token and the battery pack.

[0008] According to a further embodiment of the present invention, an arrangement is provided which comprises a battery pack for a power tool and a token having the features described above, wherein the token is removably inserted or insertable into a token receptacle of the battery pack, so that:

[0009] - triggered by plugging in, a communication functionality for the battery pack and / or the tradesman's device can be provided via the communication device of the token, and

[0010] - after plugging in (for example triggered by plugging in), the communication device is supplied with electrical energy from the battery block and, when supplied with electrical energy, wirelessly sends an initial communication message to establish a communication connection to one or more communication partner devices.According to a further embodiment of the invention, a method is provided which comprises removably inserting a token into a token receptacle of a battery pack of a tradesman's device, and triggered by inserting the token into the token receptacle of the battery pack, providing a communication functionality for the battery pack and / or the tradesman's device by means of a communication device of the token, and after inserting (for example triggered by inserting) the token into the token receptacle of the battery pack, supplying the communication device with electrical energy from the battery pack, and when supplied with the electrical energy, wirelessly sending an initial communication message by the communication device to establish a communication connection to one or more communication partner devices.Preferably, a housing body of the token has electrical contacts exclusively for forming a power supply connection between the token and the battery block.

[0011] In the context of the present application, a "token" can be understood in particular as an identification tag that can establish a functional link between the token and a battery pack and / or a tradesman's tool. Such an identification tag can be used in a coupled system that can comprise the token, a tradesman's tool mechanically linked to it, and optionally one or more devices or nodes. In particular, a token can be a hardware component for providing a communication functionality. It is also possible for a token to be used to identify and / or authenticate a user to whom the token can be assigned. A token can be an electronic token and, for example, provide a processor-related control, monitoring, and / or communication function.

[0012] In the context of the present application, a "battery pack" can be understood in particular as an electrical energy supply device that can supply a power tool coupled to the battery pack (for example, an electrical hand-held device such as a drill) and / or a token coupled to the battery pack with electrical energy. For this purpose, a battery pack can have one battery cell or a plurality of battery cells. The battery pack can preferably be rechargeable, i.e., for example, it can be recharged after being discharged by connecting it to a power grid.

[0013] In the context of the present application, a "crafts tool" can be understood in particular as a device used by a craftsperson or another user during a craft activity. This can in particular be an electrical handheld device (such as a cordless screwdriver), a tool (for example, a hammer, pliers, a file, a screwdriver, or a drill) or a tool set with multiple tools or tool elements (for example, a drill bit box with drill bits or a bit box with bits), a storage system (for example, a tool case), a consumable (for example, a bolt anchor or a box of screws), and / or a vehicle (for example, a motor vehicle in which a craftsperson can transport their equipment to a job site, a forklift truck, or a tool cart) and / or other craft equipment (for example, a ladder).A power tool can also be a battery pack or an adapter between a battery pack and a processing device (e.g., a drill module of a drill). For example, a token can be inserted into such a battery pack or adapter.

[0014] In the context of the present application, a "handheld device" can be understood in particular as a portable device that can be manually operated and carried by a user and with which a craft task can be performed, for example, the processing of a substrate. The handheld device can advantageously be an electric handheld device that can be operated by means of an electrically generated drive force. Such an electric handheld device can be controlled by means of electrical control signals - in particular provided directly or indirectly by means of a token. In particular, by means of a handheld device and by applying a drive force in the form of a longitudinal force and / or a torque, a hole can be drilled in a substrate and / or a drive 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.For example, the handheld device can be designed to drive a processing device, and thus a drill and / or a fastener, in rotation. Examples of electric or motor-driven handheld devices include a cordless screwdriver, a cordless drill driver, a rotary screwdriver, an impulse screwdriver, a ratchet screwdriver, a drill, an impact wrench (in particular a cordless impact wrench), and a hammer drill.

[0015] In the context of the present application, a "communication device" can be understood in particular as a device of the token that enables communication, in particular wireless communication, of the token with a communication partner device. The communication partner device can be, for example, a battery pack coupled to the token, a tradesman's device coupled to the token directly or via a battery pack, or another device coupled (for example, via a communication network) in a communicative manner (for example, a user terminal with an app installed on it).Such a communication device can, for example, include at least one communication antenna (in particular a transmitting and / or receiving antenna) and an associated processor resource of a processor, which enable, for example, wireless communication according to a communication protocol of the communication network with one or more other nodes of such a communication network. Alternatively, the communication functionality can also be provided by means of the token independently of a communication network through direct communication with a communication partner device. In this way, the token can communicate unidirectionally or bidirectionally with one or more other nodes, for example to download and / or upload information.For example, a download of information from a communicatively coupled node to the token can include a download of a processing control sequence for a processing task to be performed by a user using a tradesman's device that is mechanically coupled to the token. For example, an upload of information from the token to a communicatively coupled node can include an upload of tracking data that enables tracking of the operation of the token and / or a tradesman's device coupled to it for documentation and / or quality control purposes. Operating data that documents the completion of a processing task by a handheld device coupled to the token can also be uploaded from the token to a communicatively coupled node. An upload or download can provide associated communication functionality.In particular, the communication device can be embodied as a single connectivity module. However, the functionality of the communication device, in particular the provision of a wireless connection or communication, can alternatively be realized by several interacting components. For example, discrete components in the form of a microcontroller, a radio transmitter, and an antenna can be combined into a communication device using one or more circuits.

[0016] In the context of the present application, a "token receptacle" can be understood in particular as a defined, delimited receiving space in a battery block, which is shaped and dimensioned to receive an associated token and is functionally configured to interact with a received token. On the one hand, the token receptacle can be shaped and dimensioned such that a token can be received therein in a form-fitting and friction-locking manner. On the other hand, the token receptacle can be functionally configured such that, when a token is received in the token receptacle as intended, an electrical connection, a data exchange connection and / or a power supply connection is readily formed between the token and the battery block.

[0017] In the context of the present application, an "initial communication message for establishing a communication connection" can be understood in particular as a communication message sent wirelessly by a token inserted into a battery pack and supplied with electrical energy by the battery pack, which is generated and sent before an established communication connection with a communication partner device exists for the purpose of establishing such a connection. Since, when an initial communication message is sent, no established communication connection with a specific communication partner device yet exists and the token may not yet have knowledge of a communication partner device capable of communicating with the token before the communication connection is established, the initial communication message can be unspecific with regard to a possible recipient.For example, the initial communication message can be addressed to all potential communication partner devices located in a network or within a communication distance of the token. The initial communication message can contain information indicative of the token's intention to establish a communication connection. The initial communication message can contain information indicative of a communication protocol usable for communication, an identity of the token, and / or information indicative of a functionality of the token and / or a battery pack coupled to it and / or a tradesman's device coupled to it.

[0018] In the context of the present application, a "communication partner device" can be understood in particular as a device with (preferably wireless) communication functionality that can be configured (for example, programmatically) to communicate with a token. In particular, such a communication partner device can be designed to communicate according to a communication protocol that the token also supports. Examples of a communication partner device are a user terminal (for example, a mobile device, a tablet, a laptop, or a desktop computer), a control device (for example, a server computer or a master node in a communication network), another token, and / or a craftsman's device (in particular, an electrical handheld device) with its own communication functionality or with communication functionality provided by a token.

[0019] According to one embodiment of the present invention, a token is created that can be configured for insertion into a battery pack of a power tool (for example, an electric drill). Such a token can advantageously have a communication device for providing a - preferably wireless - communication functionality, i.e., it can be coupled to a communication partner device in a communicative manner. For this purpose, a user can removably or reversibly insert the token into a token receptacle of a battery pack. Such a battery pack can, for example, be connected to a power tool in order to supply the latter with electrical energy. Advantageously, by inserting the token into the battery pack, energy supply to the token via the battery pack can be initiated.Furthermore, the now energized communication device of the token can be designed to wirelessly send an initial communication message to one or more communication partner devices, for example triggered by the insertion of the token into the battery pack, to establish a communication connection. This makes it intuitive and easy for a user to equip or retrofit the tradesman's tool with communication functionality simply by plugging it into the battery pack. A user only needs to plug the token into an associated battery pack; everything else can then happen automatically. The token can automatically send an initial communication message to establish a communication connection, in particular triggered by the plugging process, and thereby initiate the establishment of a communication connection with a communication partner device.

[0020] Additional exemplary embodiments of the token, the arrangement and the method are described below.

[0021] According to an exemplary embodiment, the communication device can be configured to wirelessly transmit a localization communication message for localizing the token, the battery pack, and / or the tradesman's device, in particular to one or more communication partner devices. For example, for IoT Level 0 applications or for a use case of localization based on an advertisement communication message, the token can function as a BLE beacon.

[0022] According to an exemplary embodiment, the communication device can be configured to wirelessly transmit initial communication messages regularly (e.g., based on a schedule, on an event, or user-defined), in particular at predetermined (further, in particular, at fixed) time intervals, when supplied with electrical energy. For example, caused by network problems, temporary absorption of electromagnetic waves due to shielding effects, data collisions, or data transmission during periods prohibited for data transmission, it may happen that an initial communication message sent by a token is not properly received by any communication partner device, or that a response communication message sent by a communication partner device in response to a received initial communication message cannot be properly received by the token.To establish a communication connection quickly, reliably, and yet energy-efficiently, despite such phenomena, the token can emit several initial communication messages at intervals. This eliminates the need for energy-intensive (quasi-)continuous emission of electromagnetic energy, yet ensures that the probability of successfully establishing a communication connection can be significantly increased.

[0023] According to an exemplary embodiment, the time intervals between two consecutive initial communication messages can range from 1 second to 10 seconds. By repeatedly sending initial communication messages at these time intervals, the energy consumption of a battery-operated token can be kept within reasonable limits, while also ensuring the rapid establishment of a communication connection after inserting a token into a battery pack.

[0024] According to an exemplary embodiment, the token can be configured to enter a power-saving mode during periods between the transmission of initial communication messages. In a power-saving mode, energy consumption can be reduced compared to a transmission mode. In this way, the battery-operated token or the associated battery-operated tradesman's device can be operated in an energy-saving manner, thus achieving a long service interval between successive battery charging processes. In a power-saving mode, the token can either deactivate some of the energy-consuming processes running on it or even temporarily stop all energy-consuming processes. According to an exemplary embodiment, the communication device can be configured to wirelessly transmit an identifier for identifying the token, the battery pack, and / or the tradesman's device as part of the initial communication message.With an initial communication message, the token can also inform a potentially communicative partner device of the token's identity. This ensures that the partner device can correctly address the token in subsequent communication. It is also possible to add information to the initial communication message that identifies not, or not only, the token itself, but also a connected tradesman device. Then, the tradesman device itself can also be addressed from the partner device.

[0025] According to an exemplary embodiment, the communication device can be configured to wirelessly transmit, as part of the initial communication message, information indicative of a charge level and / or runtime of the battery pack and / or the tradesman's tool. For example, the information can be transmitted regarding the remaining energy charge (e.g., in percent) of the battery pack coupled to the token. A user who, for example, wishes to inspect available battery packs or tradesman's tools associated with them from a communication partner device configured as a user terminal can then select a suitable battery pack or associated tradesman's tool for a planned processing task based on the charge level of the battery packs.The runtime already completed by the battery pack or power tool since the last charge, or the predicted remaining runtime of the battery pack or power tool until the next charge, can also be relevant information for a user to select a power tool or power tool suitable for a specific task. Therefore, such information can advantageously be included in an initial communication message.

[0026] According to an exemplary embodiment, the token can be configured to wake up from a power-saving mode upon receipt of a response communication message from a communicatively coupled communication partner device and / or to send a payload communication message to the communication partner device. Such a response communication message can, in particular, be a message from a communication partner device confirming and / or completing the communication connection to be established. With this message, the communication partner device can inform the token that it is available for communication and / or can contain information used to establish the communication connection. The response communication message can also already contain payload data, for example, control data for controlling the tradesman's device coupled to the token via the associated battery pack from the communication partner device.

[0027] According to an exemplary embodiment, the token can have at least one sensor for capturing sensor data. This can preferably contain information indicative of the running time of the battery pack and / or the power tool. Particularly advantageously, the at least one sensor can have a vibration sensor and / or a Hall sensor. Using a vibration sensor, a vibration of a power tool designed as a compressed air device can be determined, which in turn enables its running time to be determined. Using a Hall sensor, which can measure a magnetic field or a current, it is possible to determine the running time for electrical devices in which a measurable current flow occurs during active operation.

[0028] According to an exemplary embodiment, the communication device may include a processor that controls the communication functionality. For example, such a processor may be a Bluetooth chip and / or an Internet of Things chip. More generally, the token's at least one processor may be selected from a group consisting of a Bluetooth processor, a Narrowband Internet of Things (IoT) processor, an LTE (Long Term Evolution) processor, a 5G processor, and an NFC (Near Field Communication) processor. Alternatively or additionally, the processor may operate according to another existing or future communication protocol.

[0029] According to an exemplary embodiment, the processor controlling the communication functionality can be configured as the token's data center, which executes all of the token's computing operations. In other words, a processor used as a communication chip can also execute all of the token's other computing operations in addition to providing communication functionality (e.g., for Bluetooth). Thus, said processor can be the token's sole processor. This leads to a compact configuration. Alternatively, multiple processors can be provided on the token.

[0030] According to an exemplary embodiment, the token can have a status indicator for displaying the current status of the token. For example, the status indicator can be embodied as a light-emitting diode (LED), LED array, or liquid crystal display. Such a status indicator can show the user at a glance the current status of the token.

[0031] According to an exemplary embodiment, the communication device can be configured to wirelessly transmit information indicative of the current status of the token to a communication partner device. This also makes it possible to transmit status information from the token to the communication partner device. If this device is configured, for example, as a user terminal, the status of the token or an associated battery pack and / or tradesman's tool can be displayed there. This also makes it possible for a user to monitor the respective status of multiple tokens on a shared communication partner device.

[0032] According to an exemplary embodiment, the token can be configured to operate in one of a group of states consisting of a power-saving mode, a wake-up mode, a data reception mode, and a data transmission mode. A power-saving mode can be set, for example, before establishing a communication connection between the token and a communication partner device, during periods in which the token does not transmit any initial communication messages. A wake-up mode can correspond to an intermediate state between a deactivated state or power-saving mode on the one hand and an activated state, for example, a data reception mode or a data transmission mode.In a data reception mode, a communication antenna (e.g., a receiving antenna) of the token can be set to receive electromagnetic waves to receive a communication message from a communication partner device (preferably without simultaneously transmitting, thereby avoiding collisions). In a data transmission mode, a communication antenna (e.g., a transmitting antenna) of the token can be set to transmit electromagnetic waves to send a communication message to a communication partner device (preferably without simultaneously receiving, thereby avoiding collisions). Alternatively or additionally, a different status of a token is also possible, for example, a combined transmission and reception mode.

[0033] According to an exemplary embodiment, the token can be configured to change its status upon receipt of a status change command received from a communicatively coupled communication partner device, from a coupled battery pack, and / or from a coupled tradesman device. For example, a communicatively coupled communication partner device can transmit a response communication message to a token to control the token, a battery pack coupled thereto, and / or a tradesman device coupled thereto such that it changes to a status specified by the communication partner device. The token can change its status accordingly upon receipt of a status change command.

[0034] According to an exemplary embodiment, the token can be configured to communicate with a coupled battery pack and / or with a coupled tradesman device in a wired manner using a wired communication protocol and to communicate wirelessly with a communication partner device using a wireless communication protocol.

[0035] According to an exemplary embodiment, the token can be configured to communicate with a coupled battery pack and / or with a coupled tradesman's device via a universal bus connection. The universal bus connection can preferably be a Universal Asynchronous Receiver Transmitter (UART) bus connection. A UART bus connection can be implemented using an electronic UART circuit (e.g., in the form of at least one processor or a part thereof), which can be contained, for example, in a respective one of the communicable components (in particular, token, battery pack, and tradesman's device) and which can provide a (in particular, serial) interface for data transmission.For example, with a UART bus connection, data can be transmitted between different components as a serial digital data stream with a fixed frame, which can include at least one start bit, several (in particular, five to nine) data bits, an optional check bit for detecting any transmission errors, and at least one stop bit. A receiver component can determine a clock pulse of a transmitter component from a clock pulse of the data line and synchronize itself accordingly using the start and stop bits. A UART bus connection has proven to be a particularly error-robust and fast communication interface for the requirements of flexibly combinable modular components of a tradesman's tool with a battery pack and token.

[0036] According to an exemplary embodiment, the housing body of the token can have the electrical contacts for forming the power supply connection between the token and the battery pack on a front side that is inaccessible from the outside when the token is inserted into the battery pack, in particular only on said front side. Thus, the electrical contacts can be provided on a front surface of the inserted token inside the battery pack and can thereby be connected to mating contacts of the battery pack by forming the plug connection between the token and the battery pack. A user can thus be advantageously protected from live contacts by positioning them inside the battery pack. At the same time, the external contacts are protected from environmental influences, such as moisture.

[0037] According to an exemplary embodiment, a communication antenna of the communication device can be arranged adjacent to a front side that is accessible from the outside when the token is inserted into the battery pack. The communication antenna can be designed as a transmitting and / or receiving antenna and can emit and / or receive electromagnetic radiation (in particular high-frequency radiation) during operation. To be able to perform this task in a particularly error-robust manner, it can be advantageous to provide the at least one communication antenna on the outside when the token is mounted on the battery pack. The at least one communication antenna is then protected from unwanted shielding from electromagnetic communication radiation.

[0038] According to an exemplary embodiment, the communication antenna can be arranged within the outer 20% and / or within the outer 2 cm of a length of a housing body of the token when the token is inserted into the battery pack. The length of the housing body refers to the length of the token along its insertion direction into the token receptacle of the battery pack. For example, the length of the token can be 1 cm to 10 cm, preferably 2 cm to 6 cm. To ensure a low-interference and thus high-performance wireless connection with a communication partner device, the communication antenna is preferably arranged in the outer 20% or the outer 2 cm of the token length.

[0039] According to an exemplary embodiment, a communication antenna of the communication device, on the one hand, and the electrical contacts for forming the power supply connection between the token and the battery pack, on the other hand, can be arranged in longitudinally opposite halves of the housing body. In this way, the transmission of electromagnetic waves involving the communication antenna can be spatially separated from the transmission of wired electrical signals or electrical energy, which suppresses unwanted interactions.

[0040] According to an exemplary embodiment, the token can be configured to communicate with at least one communicatively coupled communication partner device via the communication device. This token can be selected from a group consisting of another token, a portable user terminal with an app stored thereon (which can be configured to communicate with a token), a central control device (for example, for the central management or control of tradesman's equipment), and a reordering device for reordering consumables for operating a tradesman's equipment. According to one embodiment, multiple tokens can communicate with each other.

[0041] According to an exemplary embodiment, the token can have at least one communication antenna, in particular selected from a group consisting of a GPS (Global Positioning System) antenna, a BLE (Bluetooth Low Energy) antenna, an ultra-wideband (UWB) antenna, a Bluetooth antenna, a WLAN (Wireless Local Area Network) antenna, and a narrowband Internet of Things (IoT) antenna. Such a communication antenna enables wireless communication of the token via a corresponding communication protocol, which enables further refined control of a tradesman's device mechanically coupled to the token using data transmitted according to the communication protocol.

[0042] According to an exemplary embodiment, the arrangement can comprise a communication partner device with a receiving device for receiving the initial communication message, and a transmitting device for transmitting a response communication message to the token upon receipt of the initial communication message. For example, the receiving device can be a receiving antenna, and the transmitting device can be a transmitting antenna. However, the receiving antenna and transmitting antenna can also be configured as a common transmit / receive antenna. The transmitting device and / or receiving device can additionally include signal processing electronics and / or software, with which signals to be transmitted or received can be processed. The transmitting device and / or the receiving device can be configured for wireless communication with the token according to a communication protocol, which the token can also be configured to support.

[0043] According to an exemplary embodiment, the communication partner device can have a display device for displaying tokens and / or associated battery packs and / or associated tradesman tools—which are communicatively coupled to the communication partner device as a result of received initial communication messages. A user operating or using the communication partner device can identify the communicatively coupled tokens and / or battery packs and / or tradesman tools on the display device (e.g., a liquid crystal display). Additional information can also be displayed to the user there, for example, the remaining electrical charge of the battery packs and / or the remaining operating time of the tradesman tools until the next charging cycle.It is also possible to display processing tasks that have already been executed, are currently being executed, and / or are pending future execution on the communication partner device's display. Using this information, a user can centrally monitor and / or control a pool of tokens, battery packs, and / or tradesman tools.

[0044] According to an exemplary embodiment, the communication partner device can be a user terminal with communication software installed thereon. For example, the communication partner device can be a mobile device (e.g., a smartphone) with an app installed thereon. The app can be configured to monitor and / or control one or more wirelessly communicable tokens, battery packs, and / or tradesman devices via the mobile device. For example, a user can install a control app on a smartphone that equips the smartphone with functionality for communicating with tokens of tradesman devices. The user can then monitor or control a pool of tradesman devices from their smartphone.

[0045] Thus, in more general terms, the communication partner device can be configured to control a token that is communicatively coupled as a result of receiving an initial communication message, and / or an associated battery pack and / or an associated tradesman's device. Alternatively or additionally, the communication partner device can be configured to receive operating data from a token that is communicatively coupled as a result of receiving an initial communication message, and / or an associated battery pack and / or an associated tradesman's device. For example, a tradesman's device can transmit information as operating data to a communicatively coupled communication partner device regarding when, where, by whom, which processing task is being performed, and which parameters prevailed during this process.

[0046] According to an exemplary embodiment, the arrangement can comprise the tradesman's device (in particular designed as an electrical handheld device) that is coupled or can be coupled to the battery pack in order to supply the tradesman's device with electrical energy during operation via the battery pack and / or to provide the tradesman's device with the communication functionality during operation via the communication device of the token. It is particularly advantageous to provide the token receptacle in the battery pack and to electromechanically couple the battery pack to the tradesman's device. In this way, an existing tradesman's device can also be retrofitted with communication functionality by simply combining the tradesman's device with a battery pack that has a token receptacle for receiving a token with a communication device. A complete redesign or redesign of the tradesman's device is then advantageously unnecessary.

[0047] According to an exemplary embodiment, the token and the battery pack can be designed such that the battery pack supplies the token with electrical energy when the token is inserted into the token receptacle of the battery pack. The token's energy supply can thus also be formed by a guided, positive-locking, and friction-locking insertion of the token into the token receptacle. In this way, it is possible to design the token without its own energy supply device and thus in a simple and compact manner. The battery pack can also be used to supply energy to the token, which also benefits from the token's communication functionality. Exemplary embodiments of the present invention are described in detail below with reference to the following figures.

[0048] Figure 1 shows an arrangement with tradesman devices and tokens according to an exemplary embodiment of the invention, which are coupled in a communication network with additional communicable nodes.

[0049] Figure 2 shows an arrangement with tradesman tools, battery blocks and tokens according to an exemplary embodiment of the invention, which are coupled to communication partner devices in a communicable manner.

[0050] Figure 3 shows an arrangement with a tradesman's device, a battery block and a token according to an exemplary embodiment of the invention, which are coupled to each other and to a communication partner device in a communicable manner.

[0051] Figure 4 shows a three-dimensional arrangement of a token and a battery block into which the token is inserted, according to an exemplary embodiment of the invention.

[0052] Figure 5 shows a top view of an electronic circuit board of a token according to an exemplary embodiment of the invention.

[0053] Figure 6 shows a three-dimensional arrangement of a token and a battery block into which the token is inserted, according to an exemplary embodiment of the invention.

[0054] Figure 7 shows part of the electronic board of the token according to Figure 5.

[0055] The same or similar components in different figures are provided with the same reference numerals.

[0056] Before exemplary embodiments of the invention are described with reference to the figures, some general aspects of exemplary embodiments of the invention will be explained. According to one exemplary embodiment of the invention, a battery pack and a tradesman's tool can be connected to one another. A token is removably inserted into a token receptacle of the battery pack. Triggered by the insertion, a communication functionality for the battery pack and / or the tradesman's tool can then advantageously be provided by means of a communication device of the token. Thus, in a simple and error-robust manner, for example, a tradesman's tool that does not itself have such a communication functionality can be equipped or retrofitted with a communication functionality.Furthermore, after insertion (preferably triggered by the insertion process), the token's communication device can be supplied with electrical energy from the battery pack. Once such an electrical energy supply to the token is established, the token can wirelessly send an initial communication message to establish a communication connection to one or more potential communication partner devices in the token's vicinity using electrical energy from the battery pack. The initiative to form a communicable coupling between the token and the communication partner device can therefore come from the token, which can accordingly generate and send an initial communication message. The process of inserting the token into the battery pack can be interpreted as a trigger for initiating the communicable coupling, and the communicable coupling can be formed accordingly.The token handled by the user can take the initiative to establish the communication connection quickly, easily, and as needed. Thus, all the user needs to do is insert the token into a token slot in the battery pack. All further processes for establishing a communication connection between the token and the connected tradesman's tool can then occur automatically and without the need for further user activity. If the token is inserted into the battery pack and supplied with electrical voltage from the battery pack, the token sends an initial communication message (which can be referred to, for example, as an advertisement communication message) in order to be discovered by a communication partner device (for example, an app on a mobile device or similar).After the communication partner device receives the initial communication message, it can send a response communication message to the token to complete the establishment of the communication connection. Subsequently, data can be exchanged between the communication partner device and the token. A user can terminate a communication connection between the token and the communication partner device simply by removing the token from the battery pack.

[0057] With the said initial communication message, the token can also transmit the charge level of the associated battery block and / or an identifier that is assigned to a tradesman's device (e.g., an electrical handheld device) coupled to the battery block.

[0058] An app or other software component of a communication partner device can display all tradesman devices in the area upon receipt of an initial communication message.

[0059] It is possible to send the initial communication message regularly (e.g., every few seconds). This allows a communication connection to be established between the token and the communication partner device even if one or more initial communication messages were not transmitted correctly.

[0060] Communication with the handset, including the battery pack and token, can then be established via a mobile device or similar device running the app. The token can provide the necessary communication functionality. In particular, the tradesman's device can then be operated or controlled via the mobile device or similar device, and data from the tradesman's device can be read out. The token can advantageously be equipped with at least one sensor that can record the running time of the associated handset. This can be, for example, a Hall sensor (for example, in an electrical device) or a vibration sensor (for example, in a compressed air device), or a coil. In particular, the sensor for recording the running time of the associated handset can be a coil with an operational amplifier.Such sensor information can be sent along with the initial communication message to provide the mobile device or similar with information about the battery life or remaining charge level.

[0061] The token can be equipped with at least one communication module, for example, a Bluetooth chip and / or an Internet of Things chip. Such a chip can also be used as the token's data center, in particular as its sole data center.

[0062] The token can be equipped with its own control element to indicate its status. It is also possible for the token to communicate its current status via a communication message to indicate it elsewhere (e.g., on the mobile device or similar). For example, the status can be "power saving mode," "wake up," "receive data," or "send data." The token can receive and execute a command to change the status from the battery pack, from a mobile device or similar, or from the tradesman's device.

[0063] For example, the token may be in a power saving mode by default and may wake up from it periodically to send the initial communication message.

[0064] Furthermore, the token can wake up and respond when a signal is received.

[0065] The token can be provided individually and inserted into a battery pack. This advantageously eliminates the need for the battery pack or the tradesman's device to comply with a radio directive.

[0066] It is also advantageous that the token can be designed to be interchangeable between different battery packs, tradesman tools, and other devices with a token interface (e.g., a tool case). This allows the token to be operated either in a battery pack or in a tracker housing. For example, the token can be designed as a BLE token and / or an NB IOT token.

[0067] As soon as the token is supplied with electrical voltage after being inserted into a battery block, it can be triggered to send an initial communication message (which can also be referred to as an advertisement communication message) in order to be found by a communication partner device (in particular an app on a user terminal).

[0068] A token according to one embodiment of the invention can be equipped with three sensors in particular: A temperature sensor can be used to determine an ambient temperature and transmit it to a communication partner device (in particular, an app). A vibration sensor enables the determination of the running time of pneumatic devices. A Hall sensor can be used to determine the running time of electrical or battery-powered devices.

[0069] Optionally, at least one additional component can be implemented on the token, for example an LED and / or a button.

[0070] Figure 1 shows an arrangement of tradesman devices 102 and tokens 100 according to an exemplary embodiment of the invention, which are coupled in a communication network 120.

[0071] In short, each of the tokens 100 is used for insertion into a respective battery pack 142 of a selected one of the tradesman tools 102. Each token 100 can be selectively inserted into each battery pack 142. Each token 100 comprises a communication device 118 for providing wireless communication functionality to the selected battery pack 142 or a tradesman tool 102 selectively coupled thereto when the token 100 has been removably inserted by a user into a token receptacle 152 of the selected battery pack 142. Furthermore, the token 100 has an outer housing body 101, made of plastic, for example, in and / or in which the individual components of the token 100 are arranged. The housing body 101 is designed for positive and frictional insertion into the token receptacle 152.Here, lateral guide rails 105 of the housing body 101, which in the illustrated embodiment are formed by guide grooves 107, function on at least two of the four longitudinal sides of the housing body 101 for guided insertion into the battery pack 142. By inserting the token 100 into a respective token receptacle 152 of a selected battery pack 142, which in turn is connected to a selected tradesman's tool 102, an arrangement comprising token 100, battery pack 142, and tradesman's tool 102 is obtained, in which the battery pack 142 supplies the tradesman's tool 102 and the token 100 with energy. The token 100 provides wireless communication functionality to the battery pack 142 and / or the tradesman's tool 102 by means of its communication device 108.The tradesman's device 102, in turn, is configured to perform a functional task, for example, drilling a hole in a wall if the tradesman's device 102 is embodied as an electric drill. Advantageously, simply inserting the token 100 into the token receptacle 152 provides wireless communication functionality for the battery pack 142 and / or the tradesman's device 102 via the communication device 118 of the token 100, so that even tradesman's devices 102 without their own wireless communication functionality can be easily equipped or retrofitted with such functionality.At the same time, simply plugging in creates a reversible but reliable positive and frictional connection between the battery pack 142 and the housing body 101 of the token 100, by guiding the lateral guide rails 105 on the opposite longitudinal sides of the housing body 101 along a positive counterstructure (not shown in Figure 1, see reference numeral 127 in Figure 4) in the battery pack 142. An energy-transmitting and / or data-transmitting electromechanical connection can thus be formed between the battery pack 142 and the power tool 102 by plugging the battery pack 142 into the power tool 102 in a positive and frictional manner, thereby electrically conductively coupling electrical contacts 141, 143 of the battery pack 142 and the power tool 102.The energy-transmitting and / or data-transmitting connection between token 100 and battery block 142 can be released again by simply pulling out the token 100.

[0072] Advantageously, the communication device 118 of the token 100 is configured such that the communication device 118 is supplied with electrical energy from the battery pack 142 after insertion (for example, triggered or initiated by inserting the token 100 into the token receptacle 152). Through this supply of electrical energy and thus triggered or initiated by its insertion into the token receptacle 152, the token 100 sends, via its communication device 118, a wireless initial communication message (see reference numeral 200 in Figure 2) to establish a wireless communication connection to the communication partner devices located in the vicinity of the token 100 (see reference numerals 122, 124, 126 in Figure 1).If a communication partner device 122, 124, 126 receives an initial communication message from a token 100 and supports a wireless communication protocol used by the token 100 and is available for communication (which can be verified by the respective communication partner device 122, 124, 126 before communicating with the token 100), the respective communication partner device 122, 124, 126 can send a wireless response communication message (see reference numeral 202 in Figure 2) back to the token 100. After receiving the response communication message, a wireless communication connection can thus be established between the token 100 and the communication partner device 122, 124, 126, the modalities of which can be coordinated using the initial communication message and the response communication message.This means that one or more further communication messages (in particular, user data communication messages, see reference numerals 204, 216 in Figure 2) can subsequently be transmitted - unidirectionally or bidirectionally - between token 100 and the communication partner device 122, 124, 126, which is now coupled to it in a communicative manner. For example, this allows the token 100 and its associated tradesman device 102 to be controlled by means of the communication partner device 122, 124, 126 during the execution of a processing task. Alternatively or additionally, when a processing task is executed by the tradesman device 102, corresponding operating data (for example, for tracking or documentation purposes) can be transmitted from the token 100 to the communication partner device 122, 124, 126.

[0073] The functionality of the arrangement shown in Figure 1 is described in more detail below:

[0074] The illustrated arrangement comprises a plurality of tokens 100, which may, for example, all be shaped and dimensioned in the same way. Only two such tokens 100 are shown in Figure 1 (one in detail and the other schematically), but a much larger number of tokens 100 in an arrangement is possible (for example, at least ten, in particular at least one hundred).

[0075] Furthermore, a plurality of tradesman tools 102 are provided in the arrangement. In Figure 1, only two such tradesman tools 102 are shown, however, a much larger number of tradesman tools 102 is possible in an arrangement (for example, at least ten, in particular at least one hundred). Some or all of the tradesman tools 102 can be coupled to a battery pack 142. Such a battery pack 142 can have a specifically shaped and dimensioned mechanical token receptacle 152, here designed as an insertion or receiving opening, which is designed for mechanical coupling to a respective mechanical coupling device 110 of any of the tokens 100 selected by the user. The mechanical coupling device 110 is provided as an outer part of the housing body 101 of the respective token 100.Between each mechanical coupling device 110 of each token 100 and each mechanical token holder 152 of each battery block 142, a positive and frictional connection can be formed by plugging them together, for example realized by interacting guide rails.

[0076] When a mechanical connection is established between a token 100 and a selected battery pack 142 by inserting the mechanical coupling device 110 of the token 100 into the token receptacle 152 of the selected battery pack 142, an operative or communication connection is simultaneously established between the token 100, the battery pack 142, and / or a connected tradesman's tool 102. More specifically, in the illustrated embodiment, an electrical connection is established between one or more electrical contacts 156 on an outer side of each token 100 and one or more electrical mating contacts 136 on an inner side of each token receptacle 152 of each battery pack 142.The formation of a positive and frictional connection between a respective token 100 and a respective token receptacle 152 of a battery block 142 thus leads to the formation of an electrical contact and thus an electrically conductive connection between the token 100 and this battery block 142. This electrical connection also forms an electrical communication connection between the token 100 and the battery block 142, which in particular enables the transmission of electrical signals (for example control signals). As an alternative to this contact-based electrical coupling, a wireless or contactless communication connection can be established between a token 100 on the one hand and a battery block 142 or battery block connected to it.a connected tradesman's device 102 by inserting the token 100 into the token receptacle 152 to bring a transponder (for example an RFID tag, not shown) of the token 100 into a readability distance of a transponder reader (for example an RFID reader, not shown) of the battery block 142 (not shown).

[0077] Advantageously, a token 100, when brought into communication with the battery pack 142 and / or the tradesman's device 102 by insertion into the token receptacle 152 of a battery pack 142, can be configured to control this battery pack 142 and / or this tradesman's device 102. Alternatively or additionally, such a token 100 can also provide only a communication functionality to the battery pack 142 coupled thereto.

[0078] By selectively coupling each token 100 with each mechanical token receptacle 152 of a selected battery block 142, a flexibly combinable, modular system for communication operation, control and / or management of tradesman devices 102 in a complex environment is created.

[0079] In Figure 1, the power tools 102 are only partially and only schematically shown. For example, power tools 102 can be designed as electric or motor-driven handheld devices, for example as electric drills, electric cordless screwdrivers, etc. Power tools 102 designed as electric or motor-driven handheld devices can, for example, have a functional device 134 that performs the actual function of the respective handheld device and can be driven by an electric or motor drive. In a power tool 102 designed as a drill, the functional device 134 can, for example, be a drill chuck (in particular with a drill bit). In a power tool 102 designed as a cordless screwdriver, the functional device 134 can, for example, be a bit holder (in particular with a bit). Furthermore, a handheld device can be coupled to a battery pack 142, for example a removable and rechargeable battery pack.Such a battery pack 142 can supply the functional device 134 with electrical drive energy during operation. Furthermore, the battery pack 142 can also supply a respective token 100 with electrical energy when the token is received in the token receptacle 152 of the battery pack 142. A handset can also have a control device 137 and / or a battery pack 142 can have a control device 138, which can be configured to control the handset or the battery pack 142 and / or to interact with a processor 106 of a coupled token 100.

[0080] A part or each of the described tradesman's tools 102 can be temporarily or permanently equipped with a token 100 inserted into an associated battery block 142.

[0081] Advantageously, the tradesman devices 102 are configured for coupling—via an associated battery pack 142—with the tokens 100 in such a way that the use of a tradesman device 102 coupled to a token 100 by a user can be permitted, configured, and / or prohibited based on a personalized authorization profile. More specifically, a user of a token 100 can be assigned a user profile that can contain information regarding the user's ability and authorization to use certain tradesman devices 102, but can also define usage restrictions and / or usage prohibitions with regard to certain tradesman devices 102.Such a user profile can be stored in a storage device 128 of a token 100, in a storage device 140 of a battery pack 142, in a storage device 139 of a tradesman's device 102 and / or in a database 132 of a node (in the illustrated embodiment a central control device 124, alternatively another node) that is communicatively coupled to the token 100 via a communication network 120.

[0082] The structure of the token 100, which is shown in detail in Figure 1, is described in more detail below by way of example. Said token 100 serves, for example, for user-related control of a selectable one of the tradesman's devices 102 of the arrangement and has a processor 106 for this purpose. For example, the processor 106 can be embedded inside the token 100 and thus protected. The processor 106 can be designed, for example, as a microprocessor. It is possible to design the processor 106 as part of a processor unit, as an entire processor unit, or as a plurality of interacting processor units. The processor 106 of the token 100 serves for the control-technical interaction with different tradesman's devices 102 of the arrangement and, in particular, interacts functionally with a selected tradesman's device 102 and / or with an associated battery pack 142, into whose token receptacle 152 the token 100 is inserted.

[0083] Furthermore, the token 100 contains an optional cryptography unit 108 that supports cryptographic communication of the token 100. More specifically, the cryptography unit 108 can be used to encrypt communication between the token 100 and a communication partner device in the communication network 120.

[0084] As already mentioned, the token 100 has the mechanical coupling device 110, which is designed for preferably positive mechanical coupling with a token receptacle 152 of a battery pack 142. The mechanical coupling device 110 of the token 100 is defined by its outer shape, which is designed inversely to the inner shape of a token receptacle 152 of a respective battery pack 142.

[0085] The token 100 can advantageously be configured to control the operation of said battery pack 142 and / or a tool 102 coupled thereto by means of the processor 106 (and optionally the cryptography unit 108 using cryptographic communication) upon mechanical coupling of the mechanical coupling device 110 to a token receptacle 152 of a selected battery pack 142. More specifically, the processor 106 of the token 100 can control the tool 102 and, in particular, its functional device 134 such that the desired processing task is performed by the tool 102 as intended. For example, the processor 106 of the token 100 can specify the torque applied by a drill bit of a tool 102 configured as a drill to a substrate in which a borehole is to be drilled.Alternatively or additionally, it is also possible for the control of the tradesman's device 102 to be carried out by means of its processor 137 and / or by means of the processor 138 of the battery pack 142. The token 100 can also provide the battery pack 142 and / or the tradesman's device 102 with only one communication functionality via its communication device 118.

[0086] The token 100 can advantageously be configured for user-specific control of the tradesman's device 102, in particular based on a personalized authorization profile of the user. For this purpose, the token 100 can be provided with an identification device 170 configured to identify a user of the token 100. The identification device 170 is formed by a sensor 112, embodied, for example, as a fingerprint sensor, and the part of the processor 106 that identifies the user from sensor data determined by the sensor 112, for example, by a pattern comparison with reference data. More precisely, the sensor 112 is embodied, for example, as a fingerprint sensor, onto which a user places a finger for identification.

[0087] The aforementioned storage device 128 of the token 100 can, for example, store information indicative of a personalized authorization profile of the user with respect to the tradesman device 102 or granting access thereto. However, it is also possible for the authorization profile of one or more users to be stored in an entity located remotely with respect to the token 100, for example, in a central database 132 of a central control device 124, to which the token 100 can be communicatively coupled via the communication network 120.

[0088] During operation, the token 100 can be supplied with electrical energy by a battery pack 142 of a power tool 102 when the token 100 is received in the token receptacle 152. The token 100 can then be independent of its own power supply device.

[0089] Figure 1 further shows that the token 100 can have a communication antenna 114, for example, a Bluetooth antenna or a WLAN antenna. It is also possible and advantageous for reasons of diversity if the token 100 has multiple communication antennas 114, which support, for example, different communication protocols. For example, a communication antenna 114 can be realized in the form of a planar coil, which is preferably arranged in a surface region of the token 100. A communication antenna 114 can be designed as a transmit / receive antenna, i.e., with transmit functionality and receive functionality. It is also possible to provide a transmit antenna and a separate receive antenna, or only one of these communication antennas.

[0090] In particular, the token 100 shown in Figure 1 has the aforementioned communication device 118, which can be formed by the interaction of the communication antenna 114 with a corresponding part of the processor 106 and optionally with the cryptography unit 108. The communication device 118 serves to communicate the token 100 with one or more communication nodes via the communication network 120. This can be, for example, the public internet, an intranet, or a mobile network.

[0091] For example, the token 100 can communicate via the communication network 120—or directly—with another token 100 of the arrangement. Alternatively or additionally, it is possible to establish a communicative connection between the token 100 and an app or other software stored on a portable user terminal 122 via the communication network 120. In the illustrated embodiment, the user terminal 122 is a mobile radio device with a user interface with which a user can control and / or monitor the communicatively coupled token 100 and / or a tradesman's device 102 coupled thereto via a battery pack 142. Using the user terminal 122, a user can also control and / or monitor the arrangement from a remote position. For example, a token 100 can connect to the user terminal 122, which is embodied here as a mobile radio device, via an app.By means of the user terminal 122, data can be downloaded to the token 100, for example, a user profile of a user of the user terminal 122. Furthermore, it is possible for the token 100 to access resources of the user terminal 122 during operation, for example, a processor contained therein and / or a camera of the user terminal 122.

[0092] Alternatively or additionally, it is possible to establish a communicable link between the token 100 and a central control device 124 (for example, for controlling multiple tradesman devices 102) via the communication network 120. The central control device 124 can be equipped with access rights to a database 132, from which data records can be transmitted to the token 100. Such data records can be, for example, a user profile requested by the token 100, an operating data record for executing a processing task with a tradesman device 102 coupled to the token 100 via a battery pack 142, etc.Thus, the token 100 can be configured to download a data set, in particular a data set defining an operating sequence of the tradesman's device 102 and / or a data set defining a user profile of a user of the token 100, from the central control device 124 or another communicatively coupled node of the communication network 120 by means of the communication device 118. Furthermore, it is possible to transmit data from the token 100 to the control device 124 for storage in the database 132 through the communicative coupling between the token 100 and the central control device 124. Such data can be, for example, tracking data that allows tracking of a tradesman's device 102 coupled to a respective token 100.Thus, the token 100 can be configured to upload a data set, in particular a data set containing operating results and / or operating parameters of an operation of the tradesman's device 102, to the control device 124 or another communicatively coupled node of the communication network 120 by means of the communication device 118.

[0093] Finally, it is possible for the token 100 to be coupled via the communication network 120 to a reordering device 126 for reordering consumables for operating a tradesman's device 102.

[0094] During operation, for user-related control of a tradesman's device 102 using a token 100, a user of the token 100 can first be identified using the sensor 112 designed as a fingerprint sensor. Subsequently, the mechanical coupling device 110 of the token 100 can be mechanically coupled to the mechanical connecting device 152 of the selected battery pack 142 on a tradesman's device 102. Before or after the mechanical coupling, a personalized authorization profile of the user of the token 100 can be located, for example, in one of the storage devices 128, 132, 139, 140. After the mechanical coupling has been completed, the tradesman's device 102 can be controlled using the processor 106. In this case, use of the tradesman's device 102 by the user can advantageously be permitted, prohibited, and / or discontinued based on the personalized authorization profile.Figure 2 shows an arrangement with tradesman tools 102, battery packs 142, and tokens 100 according to an exemplary embodiment of the invention, which are communicatively coupled to communication partner devices 122, 124, 126. The following description focuses on the establishment and use of a wireless communication connection between a token 100 in a battery pack 142 on a tradesman tool 102, on the one hand, and the communication partner device 122, on the other. For example, the communication partner device 122 can be a mobile device with an app installed on it, which enables monitoring of tradesman tools 102 in the surrounding area.

[0095] According to Figure 2, the battery pack 142 is electromechanically connected to the tradesman's device 102 and provides electrical operating energy for operating the tradesman's device 102. Figure 2 further shows that the token 100 has been removably inserted into a token receptacle 152 of the battery pack 142. Triggered by this insertion, a communication functionality for the battery pack 142 and the tradesman's device 102 is provided by the communication device 118 of the token 100. This clearly provides the battery pack 142 and the tradesman's device 102 with wireless communication functionality, even if the battery pack 142 or the tradesman's device 102 itself does not have such intrinsic communication functionality. Furthermore, after inserting or even triggered by simply inserting the token 100 into the token receptacle 152 of the battery block 142, the communication device 118 is advantageously supplied with electrical energy by the battery block 142.Through this supply of electrical energy, the communication device 118 is activated to generate and wirelessly transmit an initial communication message 200 for establishing a communication connection with at least one of the communication partner devices 122, 124, 126 shown and arranged in the vicinity of the token 100. The communication partner device 122 is equipped with a receiving device 192 for wirelessly receiving the initial communication message 200. Furthermore, the communication partner device 122 has a transmitting device 194 for wirelessly transmitting a response communication message 202 to the token 100 upon receipt of the initial communication message 200. The receiving device 192 can be designed as a receiving antenna, which can interact with a processor 198 of the communication partner device 122 for receiving and processing the initial communication message 200.The transmitting device 194 can be configured as a transmitting antenna that can interact with the processor 198 (or with another processor) of the communication partner device 122 to generate and transmit the response communication message 202. The transmitting antenna and the receiving antenna can also be configured as a common transmitting and receiving antenna.

[0096] Furthermore, the communication partner device 122 comprises a display device 196, such as a liquid crystal display or a monitor, for displaying tokens 100, associated battery packs 142, and / or associated tradesman devices 102 that are communicatively coupled to the communication partner device 122 as a result of received initial communication messages 200. For example, the communication partner device 122 can display all tradesman devices 102 in the vicinity on the display device 196 in order to be able to monitor, control, and / or select them for a processing task by a user.

[0097] Furthermore, the communication partner device 122 includes an input unit 199 that allows a user to enter commands, data, and / or selection information into the communication partner device 122. For example, the input unit 199 can comprise a touchscreen, a keyboard, and / or other control elements. For example, a user can use the input unit 199 to control, select, and / or monitor a respective one of the tradesman devices 102.

[0098] After the communication partner device 122 has received and evaluated an initial communication message 200 from a token 100, the communication partner device 122 can send a response communication message 202 back to the token 100. The contents of the initial communication message 200 and the response communication message 202 can be configured such that, after these two communication messages 200, 202 have been exchanged, a wireless communication connection is established between the token 100 and the communication partner device 122 according to an agreed communication protocol. Subsequently, the token 100 can specifically transmit a payload communication message 204 to the now communicatively coupled communication partner device 122, and / or the communication partner device 122 can transmit a payload communication message 206 to the token 100.For example, the payload communication message 206 can include control data for controlling a tradesman device 102 associated with the token 100 by means of the communication partner device 122. Thus, the communication partner device 122 can be configured to control the token 100, which is communicatively coupled as a result of receiving the initial communication message 200, or an associated tradesman device 102. For example, the payload communication message 204 can include operating data of the tradesman device 102 during the execution of a processing task for user-side monitoring on the communication partner device 122. Consequently, the communication partner device 122 can be configured to receive operating data from a token 100, which is communicatively coupled as a result of receiving the initial communication message 200, or an associated tradesman device 102.

[0099] It is also possible that the communication device 118 at

[0100] Supplying the electrical energy of the battery pack 142 repeatedly (for example periodically) transmits several initial communication messages 200 wirelessly at predetermined time intervals of, for example, a few seconds. This allows a communication connection to a communication partner device 122 to be reliably established even under difficult transmission and reception conditions, yet with acceptable energy consumption. To further reduce energy consumption, the token 100 can be configured to enter a power-saving mode in periods between the transmission of initial communication messages 200. Advantageously, the token 100 can be configured to wake up from a power-saving mode upon receipt of the response communication message 202 from the communicatively coupled communication partner device 122 and to transmit the payload communication message 204 to the communication partner device. Both extend the battery life.

[0101] Preferably, the communication device 118 can be configured to wirelessly transmit, as part of the initial communication message 200, an identifier for identifying the token 100, the battery pack 142 connected thereto, and / or the tradesman's device 102 connected thereto. The display device 196 of the communication partner device 122 can then indicate with which token 100, battery pack 142, and / or tradesman's device 102 a communication connection is being established or has been established. Furthermore, it is possible for the communication device 118 to be configured to wirelessly transmit, as part of the initial communication message 200, information indicative of a charge level and / or operating time of the battery pack 142 and / or the tradesman's device 102.A running time of the tradesman's device 102 and thus of the battery pack 142 can be determined by means of at least one sensor 112 (for example a vibration sensor and / or Hall sensor and / or a coil, in particular with an operational amplifier) ​​of the token 100.

[0102] As already described with reference to Figure 1, the communication device 118 of the token 100 can have a processor 106 that controls or adjusts the communication functionality. For example, depending on the communication protocol used, the processor 106 can be a Bluetooth chip, an Internet of Things chip, etc. For example, the processor 106 controlling the communication functionality can be configured as the data center of the token 100, which executes all computing operations of the token 100. In this case, a single processor 106 may be sufficient for the token 100, which can thus be manufactured compactly and easily.

[0103] Figure 1 also shows that the token 100 can have a status display device 190 (embodied, for example, as an LED or LED array) for displaying a current status of the token 100. The status display device 190 can preferably be arranged on the token 100 such that it is externally visible to a user when the token 100 is inserted into the battery pack 142. The token 100 can be configured to operate selectively in a power-saving mode, a wake-up mode, a data reception mode, or a data transmission mode. The status can be set by the processor 106. Furthermore, the communication device 118 can be configured to wirelessly transmit the current status of the token 100 to the communication partner device 122. The current status of a respective token 100 can be displayed on the display device 196 on the communication partner device 122.Furthermore, the token 100 can be configured to change its status from a current status to a different, modified status upon receipt of a status change command. Such a status change command can be received from the communicatively coupled communication partner device 122. The status change command can be transmitted, for example, in the form of a payload communication message 206.

[0104] Figure 3 shows an arrangement with a power tool 102 (for example, an electric drill), a battery pack 142 (for supplying the electric drill with electrical energy), and a token 100 (particularly insertable into the battery pack 142) according to an exemplary embodiment of the invention. The interconnected components 102, 142, 100 can be communicatively coupled to a communication partner device (see reference numeral 122). As shown, the communication partner device 122 can be, for example, a smartphone, a laptop, or a tablet.

[0105] Communication between the communication partner device 122 and the interconnected arrangement of token 100, battery pack 142, and tradesman device 102 can, for example, take place wirelessly using a Bluetooth communication protocol or a narrowband Internet of Things communication protocol. In the arrangement of token 100, battery pack 142, and tradesman device 102, the token 100 forms the wireless communication interface with the communication partner device 122.

[0106] Communication within the interconnected arrangement of token 100, battery pack 142, and tradesman's device 102 can be realized, for example, by means of at least one universal bus connection, preferably a Universal Asynchronous Receiver Transmitter (UART) bus connection. The latter communication can be wired. In particular, a first UART bus connection (see UART1 in Figure 2) can be established between tradesman's device 102 and battery pack 142, and a second UART bus connection (see UART2 in Figure 2) can be established between battery pack 142 and token 100. For this purpose, a transmit interface TX and a receive interface RX are provided on the token 100, the battery pack 142, and the tradesman's device 102.

[0107] Figure 4 shows a three-dimensional arrangement of a token 100 and a battery pack 142 into which the token 100 is inserted, according to an exemplary embodiment of the invention. The interior of the token 100, not shown in Figure 4, in particular its communication device 118, can be configured, for example, as shown in Figures 1 to 3, and Figures 5 to 7.

[0108] Figure 4 shows, in particular, the interior of the battery pack 142, which is mechanically protected and electrically insulated from the outside by a battery housing 180 (made of plastic, for example). A plurality of battery cells 181 (rechargeable battery cells, for example) are provided inside the battery housing 180, which are used to supply electrical energy. A token receptacle 152 of the battery pack 142 for reversibly receiving the token 100 is accessible to a user from the outside, as it is exposed to the outside of the battery housing 180. According to Figure 4, the token receptacle 152 of the battery pack 142 is designed as a receiving slot in the battery housing 180. Furthermore, an electronic circuit board 129 of the battery pack 142 is shown, which can be designed, for example, as a printed circuit board (PCB).Surface-mounted components can be mounted on the electronic board 129, in particular a semiconductor chip forming the processor 106 (not shown in Figure 4).

[0109] Figure 4 shows the token 100 in an operating state in which it has been removably inserted into the token receptacle 152 of the battery pack 142. This insertion can provide communication functionality for the battery pack 142 and / or the tradesman's device 102 by means of the communication device 118 of the token 100. In other words, by forming the electromechanical plug connection between the token 100 and the battery pack 142, the communication device 118 can enable the battery pack 142 or the tradesman's device 102 to carry out wireless communication with communication partner devices, in particular to exchange data unidirectionally or bidirectionally. This also allows a battery pack 142 or a tradesman's device 102 that is not capable of wireless communication itself to be equipped or retrofitted with wireless communication functionality.

[0110] At the same time, by inserting the token 100 into the token receptacle 152, a positive and frictional connection is formed between the battery block 142 and a housing body 101 of the token 100. This is achieved by lateral guide rails 105 on two opposite longitudinal sides of the housing body 101 being guided along a positive-locking counterstructure 127 in the battery block 142, which is formed by edges of the electronics circuit board 129. More precisely, the battery block 142 is equipped with an electronics circuit board 129 configured in such a way that a recess is formed in the latter which is adapted to the shape and dimensions of the guide rails 105 of the token 100. The token 100 is namely inserted orInserted into the recess of the electronics board 129, it can be received in the recess of the electronics board 129 in such a way that the electronics board 129, as a counterstructure 127, can be brought into positive and frictional engagement with the guide rails 105 on the opposite longitudinal sides of the housing body 101. Clearly, the edges of the electronics board 129 that delimit the recess form the counterstructure 127. This has advantages: Because the electronics board 129 is configured not only for the surface mounting of electronic components of the battery block 142, but also synergistically for forming a positive and frictional receptacle for the token 100, the structure of the battery block 142 can be kept simple and compact.Furthermore, the use of the electronic board 129 for the direct electromechanical reception of the token 100 results in short paths for electrical currents between the token 100 and the battery block 142 and thus in low-interference signal transmission and low-loss energy transmission.

[0111] As described above, the token 100 has a communication device 118 arranged inside the housing body 101 for providing a communication functionality for the battery pack 142 and / or the connected power tool 102 (not shown in Figure 4) when the token 100 is removably inserted into the token receptacle 152 of the battery pack 142. At the same time, the housing body 101 serves for positive and frictional insertion into the token receptacle 152, wherein the lateral guide rails 105 on opposite longitudinal sides of the housing body 101 are designed for guided insertion into the battery pack 142.

[0112] Figure 4 further shows that the housing body 101 has a removal aid 117 for manually removing the token 100 from the battery pack 142 on an end face 113 accessible from the outside when the token 100 is inserted into the battery pack 142, as shown in Figure 4. This removal aid 117 is formed as a removal filament, for example, designed as a removal wire, that can be pulled out of the battery pack 142 by a user. The removal filament can be designed as an arcuate element whose free ends are attached to the housing body 101. A grippable central portion of the arcuate element protrudes opposite a removal groove 119 in the otherwise flat end face or end side 113 and therefore allows a user to manually grasp and pull out the removal filament together with the housing body 101, whereby the entire token 100 can be pulled out of the token receptacle 152 of the battery block 142.By pulling out the token 100, the electrical coupling, the energy supply coupling and the data exchange coupling between the token 100 on the one hand and the battery block 142 and / or the tradesman's device 102 on the other hand can be deactivated with one hand.

[0113] Figure 4 shows that the housing body 101 is essentially cuboid-shaped, regardless of the structural features described.

[0114] Figure 5 shows a top view of an electronic circuit board 184 of a token 100 according to an exemplary embodiment of the invention. For example, the token 100 shown in Figure 5 can have a length of 42 mm and a width of 24.5 mm. Figure 6 shows a three-dimensional arrangement of a token 100 and a battery pack 142 into which the token 100 is inserted, according to an exemplary embodiment of the invention.

[0115] Referring first to Figure 5, a token electronics board 184 is shown, which may be embodied, for example, as a printed circuit board. A number of electronic components are mounted on the token electronics board 184. These include, in particular, a semiconductor chip that forms the processor 106. Together with the processor 106 or a part thereof, a communications antenna 114 forms the wireless communications device 118. A sensor block 186 comprises one or more sensors 112, as described above. A connector block 188 provides the contacts 156 by means of which an electrical connection of the token 100 to the battery block 142 is established.

[0116] The communication antenna 114 is embodied, for example, as a Bluetooth or BLE antenna. Furthermore, the processor 106 is, for example, a BLE or Bluetooth processor. Multiple or different processors or antennas are also possible, depending on the implemented communication technology.

[0117] Referring again to Figure 5, the communication antenna 114 of the communication device 118 is arranged adjacent to the end face 113, which is accessible from the outside when the token 100 is inserted into the battery pack 142. This is also shown accordingly in Figure 6. More precisely, the communication antenna 114 can be arranged within the outer 20% of the length of the housing body 101 when the token 100 is inserted into the battery pack 142. Furthermore, according to Figures 5 and 6, the communication antenna 114 of the communication device 118, on the one hand, and the electrical contacts 156 or the connector block 188 for forming an electrical coupling between the token 100 and the battery pack 142, on the other hand, are arranged in halves 190, 192 of the housing body 101 that are opposite one another in the longitudinal direction. The halves 190, 192 extend from a center line 194 to the left and to the right, respectively, see Figure 5.This geometry is very advantageous with regard to electrical operational reliability and the quality of wireless communication: On the one hand, it ensures that the contacts 156 of the token 100 are located deep inside the battery pack 142 when the latter is electrically coupled to the battery pack 152. An outer side of the arrangement comprising the token 100 and battery pack 142 is therefore reliably electrically insulated during operation. At the same time, in the described configuration, the communications antenna 114 is located on the outer side of the arrangement comprising the token 100 and battery pack 142. This is advantageous with regard to the emission and reception of electromagnetic radiation for communication purposes by the communications antenna 114, since the electronic components of the token 100 and battery pack 142 then do not shield or attenuate corresponding electromagnetic waves, or do so only to a minimal extent.Also, an interaction between signals at the contacts 156 and electromagnetic radiation of the communication antenna 114 is advantageously suppressed by the clear spatial separation.

[0118] After forming a plug connection between token 100 and battery block 142, the battery block 142 also supplies the token 100 with electrical energy, so that a separate electrical energy supply device for the token 100 can be dispensed with.

[0119] Figure 7 shows a portion of the electronic board 184 of the token 100 according to Figure 5.

[0120] Figure 7 shows a supply voltage connection Vcc, a transmit interface TX, a receive interface RX, and a ground potential connection GND. Communication between the token 100, the battery pack 142, and the tradesman's device 102 can be carried out via UART or using a proprietary protocol. For example, the battery pack 142 can provide a voltage of 18 V, which can be reduced to a lower voltage of, for example, 3.3 V via a DC / DC converter to supply the token 100. Instead of being supplied with electrical energy by the battery cells 181 of the battery pack 142, a token 100 according to any embodiment of the invention can also be supplied with electrical energy by a button cell (for example, to provide a voltage in a range of 2 V to 3 V).

[0121] In general, a higher voltage (e.g., 18 V) can be provided to the power tool 102 by the battery pack 142 than to the token 100 (e.g., 3.3 V), even though both are supplied with electrical energy by the same battery cells 181. This can be accomplished by a DC-DC converter or a voltage divider in the battery pack 142 and / or in the token 100.

[0122] Disclosed is a token 100 for insertion into a battery pack 142 of a power tool 102, wherein the token 100 comprises: a communication device 118 for providing a communication functionality when the token 100 is removably inserted into a token receptacle 152 of the battery pack 142; wherein the communication device 118 is configured to be supplied with electrical energy from the battery pack 142 after insertion and, upon supply of the electrical energy, to wirelessly transmit an initial communication message 200 to establish a communication connection to one or more communication partner devices.

[0123] Also disclosed is a method comprising: removably inserting a token 100 into a token receptacle 152 of a battery pack 142 of a tradesman's device 102, wherein a housing body 101 of the token 100 has electrical contacts 156 exclusively for forming a power supply connection between the token 100 and the battery pack 142; triggered by the insertion of the token 100 into the token receptacle 152 of the battery pack 142, providing a communication functionality for the battery pack 142 and / or the tradesman's device 102 by means of a communication device 118 of the token 100; after inserting the token 100 into the token receptacle 152 of the battery pack 142, supplying the communication device 118 with electrical energy from the battery pack 142;and, upon supply of electrical energy, wirelessly transmitting an initial communication message 200 by the communication device 118 to establish a communication connection to one or more communication partner devices. It should also be noted that "comprising" does not exclude 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 can also be used in combination with other features or steps of other embodiments described above. Reference symbols in the claims are not to be considered as limitations.

Claims

Patent claims 1. A token (100) for insertion into a battery pack (142) of a power tool (102), the token (100) comprising: a communication device (118) for providing a communication functionality when the token (100) is removably inserted into a token receptacle (152) of the battery pack (142); the communication device (118) being designed to be supplied with electrical energy from the battery pack (142) after insertion and, when supplied with the electrical energy, to wirelessly send an initial communication message (200) for establishing a communication connection to one or more communication partner devices; a housing body (101) of the token (100) comprising electrical contacts (156) exclusively for forming a power supply connection between the token (100) and the battery pack (142).

2. Token (100) according to claim 1, wherein the communication device (118) is designed to transmit initial communication messages (200) wirelessly on a regular basis, in particular at predetermined time intervals, when supplied with electrical energy.

3. Token (100) according to claim 2, wherein time intervals between two consecutive initial communication messages (200) are in a range of 1 second to 10 seconds.

4. Token (100) according to claim 2 or 3, wherein the token (100) is configured to enter a power saving mode in periods between the sending of initial communication messages (200).

5. Token (100) according to one of claims 1 to 4, wherein the communication device (118) is designed to wirelessly transmit an identifier for identifying the token (100), the battery pack (142) and / or the tradesman's device (102) as part of the initial communication message (200).

6. Token (100) according to one of claims 1 to 5, wherein the communication device (118) is designed to wirelessly transmit, as part of the initial communication message (200), information indicative of a charge state of the battery pack (142) and / or of a running time of the battery pack (142) and / or of the tradesman's device (102).

7. Token (100) according to one of claims 1 to 6, wherein the token (100) is designed to wake up from a power-saving mode upon receipt of a response communication message (202) from a communicatively coupled communication partner device and / or to send a payload communication message (204) to the communication partner device.

8. Token (100) according to one of claims 1 to 7, comprising at least one sensor (112) for detecting sensor data containing information indicative of a running time of the battery pack (142) and / or the tradesman's device (102).

9. Token (100) according to claim 8, wherein the at least one sensor (112) comprises a vibration sensor and / or a Hall sensor and / or a coil with an operational amplifier for detecting said sensor data.

10. Token (100) according to one of claims 1 to 9, wherein the Communication device (118) has a processor (106) that controls the communication functionality.

11. Token (100) according to claim 10, wherein the processor (106) is a Bluetooth chip and / or an Internet of Things chip.

12. Token (100) according to claim 10 or 11, wherein the processor (106) controlling the communication functionality is designed as a data center of the token (100) which executes all computing operations of the token (100).

13. Token (100) according to one of claims 1 to 12, comprising a status display device (190) for displaying a current status of the token (100).

14. Token (100) according to one of claims 1 to 13, wherein the communication device (118) is designed to wirelessly send information indicative of a current status of the token (100) to a communication partner device.

15. Token (100) according to one of claims 1 to 14, wherein the token (100) is configured to operate in one state from a group consisting of a power saving mode, a wake-up mode, a data receiving mode and a data transmitting mode.

16. Token (100) according to one of claims 1 to 15, wherein the token (100) is designed to change its status upon receipt of a status change command received from a communicatively coupled communication partner device, from a coupled battery pack (142) and / or from a coupled tradesman device (102).

17. Token (100) according to one of claims 1 to 16, wherein the token (100) is designed to communicate with a coupled battery pack (142) and / or with a coupled tradesman's device (102) by means of a universal bus connection.

18. Token (100) according to claim 17, wherein the universal bus connection is a Universal Asynchronous Receiver Transmitter bus connection.

19. Token (100) according to one of claims 1 to 18, wherein the housing body (101) of the token (100) has, on an end face (115) which is inaccessible from the outside when the token (100) is inserted into the battery block (142), in particular only on said end face (115), the electrical contacts (156) for forming the power supply connection between the token (100) and the battery block (142).

20. Token (100) according to one of claims 1 to 19, wherein a communication antenna (114) of the communication device (118) is arranged adjacent to an end face (113) of a housing body (101) of the token (100), which end face is accessible from the outside when the token (100) is inserted into the battery block (142).

21. Token (100) according to claim 20, wherein the communication antenna (114) is arranged within the outer 20% and / or within the outer 2 cm of a length of the housing body (101) of the token (100) when the token (100) is plugged into the battery pack (142).

22. Token (100) according to one of claims 1 to 21, wherein a communication antenna (114) of the communication device (118) on the one hand and the electrical contacts (156) for forming the power supply connection between the token (100) and the battery block (142) on the other hand are arranged in longitudinally opposite halves (190, 192) of a housing body (101) of the token (100).

23. Token (100) according to one of claims 1 to 22, comprising at least one of the following features: wherein the communication device (118) is designed to wirelessly transmit a localization communication message for localizing the token (100), the battery pack (142) and / or the tradesman's device (102).wherein the token (100) is configured to communicate by means of the communication device (118) with at least one communicatively coupled communication partner device, which is selected from a group consisting of another token (100), a portable user terminal (122) with an app installed thereon, a central control device (124), and a reordering device (126) for reordering consumables for operating a tradesman's device (102); wherein the token (100) has at least one communication antenna (114), in particular selected from a group consisting of a GPS antenna, a BLE antenna, an ultra-wideband antenna, a Bluetooth antenna, a WLAN antenna, and a narrowband Internet of Things antenna.

24. An arrangement comprising: a battery pack (142) for a tradesman's device (102); a token (100) according to one of claims 1 to 23; wherein the token (100) is removably inserted or insertable into a token receptacle (152) of the battery pack (142), so that: triggered by the insertion, a communication functionality for the battery pack (142) and / or the tradesman's device (102) can be provided by means of the communication device (118) of the token (100); and the communication device (118) is supplied with electrical energy after plugging in the battery block (142) and, when supplied with the electrical energy, wirelessly sends an initial communication message (200) to one or more communication partner devices to establish a communication connection.

25. Arrangement according to claim 24, comprising a communication partner device with: a receiving device (192) for receiving the initial communication message (200); and a transmitting device (194) for transmitting a response communication message (202) to the token (100) upon receipt of the initial communication message (200).

26. Arrangement according to claim 25, wherein the communication partner device has a display device (196) for displaying tokens (100) and / or associated battery blocks (142) and / or associated tradesman devices (102) that are communicatively coupled to the communication partner device as a result of received initial communication messages (200).

27. Arrangement according to claim 25 or 26, wherein the communication partner device is a user terminal with communication software installed thereon, in particular a mobile radio device with an app installed thereon.

28. Arrangement according to one of claims 25 to 27, wherein the communication partner device is designed to receive a communicatively coupled token as a result of receiving an initial communication message (200) (100) and / or an associated battery pack (142) and / or an associated tradesman's device (102).

29. Arrangement according to one of claims 25 to 28, wherein the communication partner device is designed to receive operating data from a token (100) which is communicatively coupled as a result of receiving an initial communication message (200) and / or an associated battery block (142) and / or an associated tradesman device (102).

30. Arrangement according to one of claims 24 to 29, comprising the tradesman's device (102) which is or can be coupled to the battery pack (142) in order to supply the tradesman's device (102) with electrical energy during operation by means of the battery pack (142) and / or to provide the tradesman's device (102) with the communication functionality during operation by means of the communication device (118) of the token (100).

31. A method comprising: removably inserting a token (100) into a token receptacle (152) of a battery pack (142) of a tradesman's device (102), wherein a housing body (101) of the token (100) has electrical contacts (156) exclusively for forming a power supply connection between the token (100) and the battery pack (142); triggered by inserting the token (100) into the token receptacle (152) of the battery pack (142), providing a communication functionality for the battery pack (142) and / or the tradesman's device (102) by means of a communication device (118) of the token (100); after inserting the token (100) into the token receptacle (152) of the battery pack (142), supplying the communication device (118) with electrical energy from the battery pack (142); and when supplied with electrical energy, wireless transmission of an initial communication message (200) by the communication device (118) to establish a communication connection to one or more communication partner devices.

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