Reader with replaceable energy / communication module

Abstract

Reader module, including: a housing structure (28) comprising a top section (30) and a handle section (32), wherein a cavity (34) is formed in the handle section (32) which extends in the handle section (32) towards the upper end of the handle section (32), wherein an opening is formed at a bottom of the handle section (32) which opens into the cavity; a reader connector (40) located at the upper end of the cavity (34), near the upper end of the handle section (32); and a removable power / communication module (14a, 14b) designed to be inserted into the cavity (34) through the opening at the lower end of the handle section (32), the removable power / communication module (14a, 14b) comprising the following: a power / communication module connector (58) for detachable connection to the reader connector (40); a power supply (64) connected to the power / communication module connector (58) for supplying power to the reader module (12) via the reader connector (40); a communication component for communicating with an external computer device (20); an interface controller (62) connected between the power / communication module connector (58) and the communication component, which is programmed to translate data between the communication component and the reader module (12); and a module support structure (46) attachable to the housing structure (28), designed as an end cap corresponding to the opening on the bottom of the cavity of the handle section (32), and configured to support the power / communication module connector (58), the power supply (64), the communication component and the interface control (62), such that the module support structure (46) and the components supported by it are removable from the reader module (12) as a single assembly.

Description

CROSS-REFERENCE TO RELATED REGISTRATIONS

[0001] The present application claims priority over US patent application 12 / 572,316, filed on October 2, 2009, which is hereby incorporated by reference. DECLARATION REGARDING RESEARCH OR DEVELOPMENT FINANCED BY FEDERAL FUNDS

[0002] Not applicable. BACKGROUND OF THE INVENTION 1. Field of Invention

[0003] The present invention relates to handheld image-based ID code readers and in particular to an arrangement comprising a single imaging module that can be used with one of several different power / communication modules, so that the imaging module can be used in each of several different applications. 2. Description of the related technology

[0004] Images captured for code reading, also known as Direct Part Marking (DPM) or label marking, contain one or more 1D symbols (e.g., a barcode) or 2D symbols (e.g., a DataMatrix code) embedded in an object. The code reading process involves repeatedly placing an object marked with either 1D or 2D codes into the field of view of an image capture sensor (e.g., CMOS camera, CCD, etc.), illuminating the codes, and capturing images—that is, image data containing the codes. Each code contains a set of predefined patterns from which a connected data processor, such as a computer, can derive useful information about the object (e.g., serial number, type, model, price, etc.).

[0005] The handheld ID code reader can communicate with a server or remote processor over a network to exchange code reading results, images, and reader settings and status information. This communication can be facilitated by several different interfaces. For example, interface options include a wired connection, which consists of a cable and a power source, or a wireless interface, which uses RF for data transmission and energy storage devices (e.g., rechargeable batteries) as its power source. A wired interface can be used if a reader is intended for general use in a single area, while a wireless interface can be used if the reader is to be used in many different and geographically dispersed locations.

[0006] In addition to requiring either a wireless or wired interface, different systems often require different communication protocols and reader interfaces. For example, some systems may require a reader to communicate via RS232, Bluetooth, USB, PS / 2, Ethernet, or RS485, among others. If a reader has an RS232 interface, it cannot be used with a system that communicates via any of the other interface types (e.g., USB, Ethernet, etc.). Therefore, if a new system is installed in a facility that communicates via USB or another interface type, the RS232 reader cannot be used with the new system. Similarly, if a reader is configured to communicate via a wired connection and Ethernet, and a facility upgrades its communication system to wireless Bluetooth, the reader cannot be used with the new system.

[0007] From European Patent EP 0 656 600 A2, an information processing system is known that includes a portable terminal and a data transmission adapter for transferring data between a host computer and the portable terminal. US Patent 6 115 678 A describes a universal interface system that includes a data acquisition device with a barcode scanner. The data signals acquired by the data acquisition device are transmitted by the interface system to a host device via a host interface cable.

[0008] Document US 2007 / 0108291A1 describes a portable terminal with an upper and a lower housing. The lower housing contains a cavity in which a push button is located.

[0009] A portable, battery-powered data entry terminal is known from publication US 5 410 141 A.

[0010] From the publication DE 20 2005 019 744 U1, a portable data reading device for contactless reading and transmission of data from data carriers such as RFID tags or barcodes is known, comprising a handle in which batteries and / or a mains connection are arranged, a processor component in which an evaluation unit for read data and a transmitter unit for wireless data transmission are arranged, and a read head with at least one contactless data reading unit.

[0011] One solution to the aforementioned problem is to provide a reader equipped to communicate via all possible interface types. While this solution would provide a versatile reader, it has several drawbacks. First, there are ergonomic considerations: a large number of interfaces means the reader must have a connector with a large number of contacts. A multi-interface connector can only be practically mounted on the bottom of a reader handle. Multiple contacts also mean an increase in the size of the connector and the handle size / diameter. Ergonomic constraints limit the handle size. Additionally, more interface contacts would require more wires within a connecting cable, increasing cable weight and reducing flexibility, thus making it more difficult to move the reader.Furthermore, for most practical applications, only a single interface is required.

[0012] Regarding energy requirements, the intention of a wireless reader with RF communication is for it to operate without any cables. This requires a battery to power the device. Due to the comparatively higher energy consumption of an image-based ID reader, the operating time is limited by the battery capacity. Therefore, a rechargeable battery is necessary. A typical interface for tethered ID readers is RS232, which enables serial data exchange. RS232 cannot power the device itself, and some form of external power supply (e.g., a wall adapter) is required to power the reader. In contrast, other interfaces such as PS / 2, USB, and Ethernet (Power over Ethernet (PoE)) are capable of providing sufficient power to a connected reader.Some protocols, especially USB and PoE, have complex power management requirements, such as inrush current limits, power sequencing (controlled power supply ramp-up or ramp-down), energy classification, and sleep mode. An extremely complex interface architecture would be needed to support all possible currently used communication protocols.

[0013] Regarding the electronics for each interface type, different interface types communicate using varying signal levels and have different requirements in terms of signal speed and quality. Multiplexing different interface signals to a limited number of connector pins would require significant technical effort and is practically impractical in terms of cost and size. Additionally, electronic components could be damaged if a fault occurs and a multiplexer is set to the wrong connection type. Furthermore, all contacts with external connections must be protected against electrostatic discharge (ESD). Due to the different signal levels and high speed requirements associated with various interface types, a one-size-fits-all protection circuit is by no means optimal for all interface types. BRIEF DESCRIPTION OF DIFFERENT VIEWS OF THE DRAWINGS Fig. Figure 1 shows a perspective view of a connected reading device according to an embodiment of the present invention; Fig. Figure 2 shows a perspective view of the reading device. Fig. 1 with a reader module with a dash-two-dot line and a power / communication module with a solid line; Fig. Figure 3 shows a perspective view of the reading device. Fig. 1, in which the power / communication module was disconnected; Fig. Figure 4 shows a circuit diagram illustrating the components that make up the energy / communication module of Fig. 3 form, shows; Fig. 5 is similar to Fig. 1, but shows a wireless power / communication module in a holder; Fig. 6 is a view that corresponds to the view of Fig. 2 is similar, but the wireless power / communication module of Fig. 5 shows; Fig. 7 is a view that corresponds to the view of Fig. 3 is similar, but the wireless power / communication module of Fig. 5 shows; Fig. 8 is a view that corresponds to the view of Fig. 4 is similar, but shows components in an exemplary wireless power / communication module; and Fig. Figure 9 is a partial perspective view of the module from Fig. 7, which shows a clip connector that connects a battery to a circuit board; and Fig. 10 is a partial perspective view of the module from Fig. Figure 7 shows a battery end cap and adjacent holder contacts. DETAILED DESCRIPTION OF THE INVENTION

[0014] Now, with reference to the drawings, in which the same reference numerals correspond to similar elements in the different views, a reader kit 10a, 10b is shown, comprising a single reader module 12 and several different power / communication modules 14a, 14b (only two power / communication modules are shown). As can be seen, module 14a is a tethered module comprising a cable 18 for receiving power and for the two-way communication of data between the reader module 12 and an external computer 20. Module 14b comprises an antenna 22 (see Fig. 8) and a rechargeable battery 24, so that the arrangement can be used wirelessly and untethered when the module 14b is attached to the reader module 12.

[0015] The general support and housing structures for both the tethered and wireless modules are similar, which is why this structure is only mentioned once in connection with the one in Fig. 2 and Fig. The attached embodiment shown in section 3 is described.

[0016] Especially with regard to Fig. 2 The reader module 12 comprises a housing structure 28, which includes a top section 30 and a handle section 32. The top section 30 contains an imaging assembly (not shown) with an image sensor, lenses, illumination devices, a processor, memory, etc. The handle section 32 has a cavity 34 with an opening (at the bottom of the handle section) that leads into the cavity 34. A reader connector 40 is located at the top of the cavity 34 and has a receiving channel (not shown) for receiving a power / communication module connector 58 (see Fig.3 or Fig. 7) forms when a module 14a or 14b is inserted into the cavity 34.

[0017] Still referring to Fig. 2 and Fig. 3 Module 14a comprises a module support structure 46 in the form of an end cap, corresponding to the opening at the bottom of the handle cavity 32. Although not shown here, it is provided that some type of mechanical fastening mechanism (e.g., one or more screws, a press fit, tabs and associated receiving holes, etc.) is provided for fastening the structure 46 to the end of the cavity, as shown in Fig. 1 and Fig. 2 is shown. Connected modules

[0018] With reference to Fig.Figure 3, the exemplary connected module 14a, comprises a printed circuit board 50, a board cover 52, a cable connector 54, a cable lock 56, and a module connector 58. Although not shown here, the circuits are mounted on the board 50. Also with reference to Fig. The circuits comprise a non-volatile memory 60, an interface controller 62, a protective termination circuit / filter 68, a cable connector 70, a power supply 64, and an energy management unit 66. The cable connector 68 provides a mechanical fit feature that ensures only a compatible cable (e.g., USB, Ethernet, etc.) can be plugged into module 14a. Alternatively, an "electrical fit" is possible, but this is more complex than a mechanical fit.

[0019] A protection circuit 68 safeguards the reader electronics against overcurrent, overvoltage, electrostatic discharge (ESD), and reverse polarity. Electromagnetic emissions (EMI) are attenuated by the filter 68, and signal integrity is ensured by proper line termination. The interface controller 62 contains the physical layer of the interface module 14a, which provides data translation and signal integrity between reader data signals and cable interface signals. The non-volatile memory contains a communication module ID (communication module identifier) ​​and may also contain interface setup information such as the MAC address. The power supply 64 is optimized for voltages corresponding to one of several different types of power / communication modules.In this regard, see Table 1 below, which mentions specific operating parameters for various types of connected power / communication modules considered in this disclosure. It is understood that other connected communication protocols are present there and that any existing or future protocol could be used with this disclosure. Table 1 Communication interface used for energy RS232 Serial communication Wall adapter, desktop power supply type: +5...+12 VDC USB HID (HID) USB serial (CDC) etc... Powered by USB host or USB hub + 5 VDC PS2 Keyboard emulation, keyboard switch Powered by host + 5 VDC Ethernet Various Ethernet protocols POE (Power OverEthernet) type. +48VDC RS485 PROFIBUSMODBUS etc. Industrial type. +5 V, +24 VDC CAN CANopenDeviceNet Industrial type. +5 V, +24 VDC

[0020] Some connected power / communication modules require specific power management functions. For example, a USB module has a limited inrush current and low power consumption during idle operation. Another example is the need to support a detection process for a PoE (Power over Internet) module. The power management unit 66 controls the power supply 64 in a manner suitable for use with an associated type of power / communication module (e.g., 14a, 14b, etc.).

[0021] Again with reference to Fig. 3. Module 14a can be any of the module types shown in Table 1 or other types. In any case, the module connector 58 and the carrier 46 will be similar, while the cable connector 70, memory 60, interface control 62, circuit 68, power supply 64, and management unit 66 will be different and will depend on which type of module is used.

[0022] It is understood that by exchanging one module for another, the communication protocol, cable connector and power management can be modified to adapt to any connected communication type. Wireless modules

[0023] Now with reference to Fig. 5 to 10, several components of module 14b are similar to the components described above, including the reader module 12, which forms the cavity 32 and carries the reader connector 40 at the top of the cavity 32, cover 52, and connector 44. In this case, with reference to Fig. 8, the printed circuit board 80, several components similar to those described above, including the non-volatile memory 60, interface control 62, protection circuit and filter 68, power management unit 66, and power supply 64. Additional circuitry in the wireless embodiment of Fig.8 also include an RF chip module 90, holder contacts 9 and battery cap sensor 94. Additionally, with regard to Fig. 6 to 8 the module 14b a battery 24, a battery charger 96 (alternatively, the charger can also be part of the holder interface 110) and an antenna 22. Also with reference to Fig. 9 positive and negative clips 100 (only one shown) are mounted on the circuit board 50 and accommodated in channels (e.g. 102) formed in opposite sides of the battery 24 for contacting the positive and negative battery terminals and for assisting in holding the battery in an installed position.

[0024] Again with reference to Fig. 8. The RF chip / module 90 can be a WiFi module, a Bluetooth module, or another RF technology that enables wireless communication with an external computer device (e.g., 20 in). Fig.1) enables. The antenna 22 is optimized for the communication protocol associated with the RF chip / module. The non-volatile memory 60 contains a communication module ID and can also store interface setup information such as a MAC address, Bluetooth ID, and speed settings for RF communication, and a holder interface 110 (see Fig. 5) included.

[0025] The serial interface control pin 62 is a non-RF interface (e.g., RS232, USB, I2C, SPI) that allows communication when a reader, including module 14b, is inserted into a holder such that contacts 92 make contact with the holder contacts (not shown). This allows holder communication to be supported as opposed to wireless communication by at least some kit components. Contacts 92 (see also Fig.10) can be used for both power (e.g., to charge battery 24) and data transmission when module 14a is installed in holder 110. The protection circuit / filter 68 protects the communication module and the base station from electrostatic discharge (ESD) and overcurrent / overvoltage. The filters 68 reduce electromagnetic emissions (EMI).

[0026] With reference to Fig. 10 The module 14b includes a support structure 46 which includes a battery cap 120 that can be removed to change the battery 24 without removing the module 14b from the reader module 12 (see again Fig. 6) to disconnect. The battery cap 112 is monitored next to a sensor (see 94 in Fig.8), which sends a signal to the reader module 12 when the battery cap is removed, allowing the reader to save internal operating data before the battery is finally removed. The battery charger 96 is connected to the battery 24 and charges the battery 24 when the reader is placed in a holder 110 as shown in Fig. 5 is used.

[0027] The power management unit 66 includes logic for a device on / off function and supports sleep modes to conserve battery power. Sleep modes can vary for different RF technologies. For example, some wireless modules can be put into sleep mode, while others always require power to maintain an RF link. The power supply 64 is optimized for battery operating conditions.

[0028] Wireless embodiments may include a WiFi module, a Bluetooth module, a wireless USB module, a ZigBee module and a non-RF wireless module (for example, where information is stored in non-volatile memory and transferred via holder contacts when a reader is inserted into the base station holder 110).

[0029] It is understood that the reader module 12 is essentially identical regardless of whether the tethered module 14a or wireless module 14b is attached to it, and that for use with a single reader module, one of the modules, tethered or wireless, can be exchanged for one of the other modules, tethered or wireless. Thus, an advantage of the system according to the invention is that only one version of the ID reader is required and that the power and communication interface for the reader can be easily replaced by the reader user. Additionally, each tethered reader type has only a single cable comprising the power and communication cables. Furthermore, the system can be used with different module types that employ future interface standards. Moreover, the described system optimizes the power supply and incorporates protection circuits optimized for specific protocols.Additionally, interface setup information can be stored on the module memory, allowing a reader to be switched from one power / communication module to another without losing communication parameters. Furthermore, sales representatives only need a single reader with a set of physically small connection modules to demonstrate all interface options. Software developers and test engineers can also perform their work with just one reader and one set of power / communication modules. Defective power / communication modules can be easily repaired by replacing one module with another of the same type. The interchangeable design also simplifies component inventory management. Instead of stocking multiple reader types, the modular concept allows for the storage of a kit containing a single type of reader module and several different types of power / communication modules.

[0030] The above description focused primarily on a preferred embodiment of the invention. Although some attention was paid to various alternatives within the scope of protection of the invention, it is assumed that the person skilled in the art will likely be able to implement additional alternatives that are now apparent from the disclosure of embodiments of the invention. Therefore, the scope of protection of the invention should be determined from the following claims and not limited to the disclosure above.

[0031] For the scope of protection of the present invention, see the following claims:

Claims

[1] Reader module, comprising: a housing structure (28) comprising a top section (30) and a handle section (32), wherein a cavity (34) is formed in the handle section (32) which extends in the handle section (32) towards the upper end of the handle section (32), wherein an opening is formed at a bottom of the handle section (32) which opens into the cavity; a reader connector (40) located at the upper end of the cavity (34), near the upper end of the handle section (32); and a removable power / communication module (14a, 14b) designed to be inserted into the cavity (34) through the opening at the lower end of the handle section (32), the removable power / communication module (14a, 14b) comprising the following: a power / communication module connector (58) for detachable connection to the reader connector (40); a power supply (64) connected to the power / communication module connector (58) for supplying power to the reader module (12) via the reader connector (40); a communication component for communicating with an external computer device (20); an interface controller (62) connected between the power / communication module connector (58) and the communication component, which is programmed to translate data between the communication component and the reader module (12); and a module support structure (46) attachable to the housing structure (28), designed as an end cap corresponding to the opening on the bottom of the cavity of the handle section (32), and configured to support the power / communication module connector (58), the power supply (64), the communication component and the interface control (62), such that the module support structure (46) and the components supported by it are removable from the reader module (12) as a single assembly. [2] Reader module according to claim 1, wherein the detachable power / communication module (14a, 14b) further comprises a non-volatile memory (60) which is connected to the power / communication module connector (58) and is supported by the module support structure (46), wherein the memory (60) comprises a communication module ID and interface setup information. [3] Reader module according to claim 2, wherein the interface setup information includes a MAC address, a Bluetooth ID, configuration settings for RF communication and / or speed settings for holder interface communication. [4] Reader module according to claim 1, wherein the removable energy / communication module (14a, 14b) further comprises a protective termination circuit (68) connected between the interface control (62) and the communication component, wherein the termination circuit is supported by the module support structure (46). [5] Reader module according to claim 4, wherein the detachable energy / communication module (14a, 14b) further comprises a filter (68) connected between the interface control (62) and the communication component for damping electromagnetic emissions. [6] Reader module according to claim 4, wherein the protective termination circuit (68) is also connected between the power supply (64) and the communication component. [7] Reader module according to claim 1, wherein the communication component comprises a cable connector (70). [8] Reader module according to claim 1, wherein the communication component comprises holder contacts (9). [9] Reader module according to claim 1, wherein the detachable power / communication module (14a, 14b) further comprises an RF module and an antenna, wherein the RF module connects the antenna (22) to the power / communication module connector (58). [10] Reader module according to claim 8, wherein the detachable power / communication module (14a, 14b) further comprises a battery connected to the power supply (64). [11] Reader module according to claim 9, wherein the power supply (64) comprises a rechargeable battery. [12] Reader module according to claim 11, wherein the removable power / communication module (14a, 14b) further comprises a battery cap and a cap sensor (94), wherein the cap sensor (94) indicates whether the battery cap is open. [13] Reader module according to claim 1, wherein the module support structure (46) is attached to the housing structure (28) and the components supported by the module support structure (46) are received in the cavity (34). [14] Kit comprising a detachable power / communication module (14a, 14b) which includes the following: a power / communication module connector (58) for detachable connection to the reader connector (40); a power supply (64) connected to the power / communication module connector (58) for supplying power to the reader module (12) via the reader connector (40); a communication component for communicating with an external computer device (20); an interface controller (62) connected between the power / communication module connector (58) and the communication component, which is programmed to translate data between the communication component and the reader module (12); and a module support structure (46) attachable to the housing structure (28), designed as an end cap corresponding to the opening at the bottom of the cavity of the handle section (32), and configured to support the power / communication module connector (58), the power supply (64), the communication component and the interface control (62), such that the module support structure (46) and the components supported by it are removable from the reader module (12) as a single assembly; wherein the detachable power / communication module (14a, 14b) is a first detachable module that communicates via a first communication protocol and the communication component is a first communication component (14a), wherein the kit (10a, 10b) comprises at least one second detachable module that communicates via a second communication protocol and that comprises a second communication component (14b), wherein the second detachable module is interchangeable with the first detachable module, so that the reader module (12) can communicate via the first communication protocol or the second communication protocol. [15] Kit according to claim 14, wherein the first communication component (14a) comprises a cable connector and the second communication component (14b) comprises an antenna (22) for wireless communication. [16] Kit according to claim 14, further comprising several different detachable modules, each detachable module comprising a unique communication component and communicating via a different communication protocol. [17] Kit comprising the reader module (12) according to claim 1, wherein the kit further comprises a reader and a cable (18). [18] Kit according to claim 17, further comprising at least one power supply (64). [19] Energy / communication kit comprising: a housing structure (28) comprising a top section (30) and a handle section (32), the handle section (32) having a cavity (34) extending in the handle section (32) towards the upper end of the handle section (32), with an opening being formed at a bottom of the handle section (32) which opens into the cavity; a reader connector (40) located at the upper end of the cavity (34), near the upper end of the handle section (32); and a removable energy / communication module (14a, 14b) designed to be inserted into the cavity (34) through the opening at the lower end of the handle section (32), a first detachable energy / communication module (14a, 14b) and a second detachable power / communication module (14a, 14b), wherein the first detachable energy / communication module (14a, 14b) is designed to be inserted into the cavity (34) and comprises the following: a first power / communication module connector (58) for detachable connection with the reader connector (40); a first power supply (64) connected to the power / communication module connector (58) for supplying power to a reader module via the reader connector (40), a first communication component (14a) for communicating with an external computer device, wherein the first communication component (14a) communicates using a first communication protocol; one between the first power / communication module connector (58) and the first interface controller (62) connected to the first communication component, which is programmed to translate data between the first communication component and the reader module (12); and a first module support structure (46) attachable to the housing structure (28), configured to support the first power / communication module connector (58), the first power supply (64), the first communication component (14a) and the first interface control (62), such that the first module support structure (46) and the components supported by it are removable from the reader module (12) as a single assembly; wherein the second detachable energy / communication module (14a, 14b) is designed to be inserted into the cavity (34) and comprises the following: a second power / communication module connector (58) for detachable connection to the reader connector (40); a second power supply (64) connected to the second power / communication module connector (58) for supplying power to the reader module (12) via the reader connector (40), a second communication component (14b) for communicating with an external computer device, wherein the second communication component (14b) communicates via a second communication protocol that differs from the first communication protocol; and a second interface controller (62) connected between the second energy / communication module connector (58) and the second communication component, which is programmed to translate data between the second communication component and the reader module (12); and a second module support structure (46) attachable to the housing structure (28), designed as an end cap corresponding to the opening at the bottom of the cavity of the handle section (32), and configured to support the second power / communication module connector (58), the second power supply (64), the second communication component (14b), and the second interface control (62), such that the second module support structure (46) and the components supported by it are removable from the reader module (12) as a single assembly; wherein the first energy / communication module (14a, 14b) and the second energy / communication module (14a, 14b) can each be attached to the reader to enable exchange via the first communication protocol and the second communication protocol, respectively. [20] Kit according to claim 19, wherein the first and second communication protocols are RS232, RS485, USB, PS2, Ethernet or CAN, respectively. [21] Kit according to claim 19, wherein the first and second communication protocols are WiFi, Bluetooth, wireless USB, ZigBee or non-RF wireless, respectively. [22] Power / communication kit for use with a reader module (12) according to any one of claims 1 to 13, wherein the code reader module (12) comprises a reader connector (40) and a reader housing, wherein the power / communication kit comprises: a housing structure (28) comprising a top section (30) and a handle section (32), wherein the handle section (32) forms a cavity (34) extending in the handle section (32) towards the upper end of the handle section (32), wherein an opening is formed at a bottom of the handle section (32) which opens into the cavity; a reader connector (40) located at the upper end of the cavity (34), near the upper end of the handle section (32); several different energy / communication modules (14a, 14b), each energy / communication module (14a, 14b) communicating via a different communication protocol and each comprising an energy source and a communication component suitable for communicating via an associated communication protocol, each of the energy / communication modules (14a, 14b) being configured to be inserted into the cavity (34) through the opening at the lower end of the handle section (32), so that each of the energy / communication modules (14a, 14b) can be exchanged with each other of the energy / communication modules (14a, 14b), so that a reader can be used with different communication systems. [23] Wireless kit using the reader module (12) according to claim 1 and comprising: a first wireless communication module comprising a battery (24), wherein the first wireless communication module is detachably mountable from the reader module (12), wherein the first wireless communication module is operable in such a way that it can be exchanged with a second wireless communication module without losing communication parameters; and a holder interface (100), wherein the holder interface (100) accommodates the first wireless communication module and provides power for charging the battery (24). [24] Kit according to claim 23, further comprising interface cables for connecting the holder interface (100) to a computer.

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