WO2017133985A1

WO2017133985A1 - Anti-theft module for an electric machine tool, and electric machine tool comprising an anti-theft module

Info

Publication number: WO2017133985A1
Application number: PCT/EP2017/051810
Authority: WO
Inventors: Florian Esenwein; Wolfgang Hirschburger; Christoph BUEHLEN
Original assignee: Robert Bosch Gmbh
Priority date: 2016-02-01
Filing date: 2017-01-27
Publication date: 2017-08-10
Also published as: DE102016201454A1; EP3411860B1; EP3411860A1

Abstract

Disclosed is an anti-theft module (10) for an electric machine tool (12), comprising a position identification unit (50) for determining a geographical position of the anti-theft module (10), and at least one first data interface (52) for transmitting data, in particular position-related data, to an external device (54). The anti-theft module (10) of the invention is characterized in that same can be or is mounted on a cable (14) that is permanently connected to the electric machine tool (12). Also disclosed is an electric machine tool (12) comprising a corresponding anti-theft module (10).

Description

Anti-theft module for a power tool and power tool with an anti-theft module

description

The invention relates to an anti-theft module for a power tool and a power tool with an anti-theft module according to the preamble of the independent claims. State of the art

Anti-theft systems for electric and garden tools are becoming increasingly important. This also applies to corded power tools, which sometimes have very high values, especially in the professional field. Therefore, such devices are often stolen from construction sites or construction trailers, which can mean for the respective construction company in addition to the replacement cost and a high administrative effort, for example, to clarify insurance issues. But even in the private sector, the need for corresponding anti-theft systems is increasing.

From DE 10 2010 041 309 AI an anti-theft device for a mobile device, in particular for a mobile implement, with a shutdown unit is known, which is intended to make the device dysfunctional. The anti-theft device has a position location unit for determining current geographic coordinates and is intended to process this coordination. Furthermore, the anti-theft device has an input unit for entering an allowable work area, within which the mobile device can be operated without restrictions. DE 10 2012 112 835 A1 discloses a system having a central license management unit and at least one tool device, which has at least one communication device and one computing unit, wherein the computing unit is provided to at least one function of the tool device from a central license via the communication device. Management unit received depending on usable information. Furthermore, it is known from DE 10 2012 112 835 AI to provide a location determining means for determining a location in the tool device. In this case, the communication device can exchange data directly with a central computer or via a mobile data device, for example a smartphone, with the central computer.

In addition, theft protection systems are known from the prior art, which protect a power tool from unauthorized use or theft by a code can be sent to the power tool for their release by means of a remote control. The power tool is locked by simply pressing the remote control. A disadvantage of this solution is the need to always have to carry the remote control to release.

Other solutions include registering the serial number of an electric hand-held power tool together with a customer number and informing the owner of a theft when the electric hand-held power tool is reappeared. In addition, the electric power tool is blocked when attempting unauthorized startup. Using a company-specific card, the device can be activated and then unlocked via a corresponding unlock key.

Furthermore, systems for tracking the position of an electric hand-held machine tool, so-called tracking systems, are known which exchange data of the electric hand-held power tool with a central server or a cloud in order to enable inventory or timely maintenance.

It is an object of the invention to provide a universal anti-theft module for an existing power tool that is on the one hand easy to retrofit and on the other hand to ensure more reliable over the prior art protection of the power tool.

Advantages of the invention The invention relates to an anti-theft module for a power tool, comprising a position determining unit for determining a geographic position of the anti-theft module and having at least a first data interface for transmitting data, in particular position data, to an external device. According to the invention, it is provided that the anti-theft module can be mounted or mounted on a cable permanently connected to the power tool. In a particularly advantageous manner, the anti-theft module can thus be mounted as a retrofit easily and without additional tools to the cable of an existing power tool. Even new power tools without theft protection devices can be upgraded accordingly. Advantage of the invention is further that when a misplaced or missing device, the exact position can be detected at any time. The present invention is characterized in particular by its simplicity, modularity and reusability. For the user, moreover, there is the advantage of using the same anti-theft module alternately on different power tool machines.

The term "power tool machine" is intended to mean, for one thing, any device for machining workpieces by means of an electrically driven insertion tool, thus making the power tool machine an electric hand tool or a stationary power tool But also garden tools, such as lawn mowers, grass trimmers, branch saws or the like can be subsumed under the term electric power tool but also devices are to be understood as power tools that typically on Examples include construction site spotlights, heaters, blowers, pumps, mixing machines, measuring instruments, construction site radios, etc., but also calbe-bound infrastructures for data transmission, such as WLAN routers, switches, etc. As a "data interface" in particular an interface for wireless or wired, unidirectional or bidirectional transmission of data be understood between the anti-theft module and the external device. This can be used for wired transmission Powerline, USB, Ethernet or other bus systems. Likewise, proprietary bus systems are conceivable. A wireless transmission typically takes place with transmission standards such as WLAN, BT, BTLE, ZigBee, NFC, RFID, GSM, UMTS, LTE or the like. Of course, a proprietary transmission protocol is also conceivable here. Among other things, the data interface can also be used for programming, updating and reading out or possibly resetting the anti-theft module via an external device. The "positioning unit" typically consists of a GPS receiver, but may also include other location services such as Galileo or Glonass, and location within buildings may be based on WLAN, beacons, or existing infrastructure elements such as BT or WLAN equipped smoke detectors or the like Of course, a combination of outdoor and indoor location services is also possible An "external device" describes a device that is not mechanically connected to the power tool. The external device communicates with the data interface via the services already mentioned and has for this purpose itself a corresponding data interface for the wired or wireless transmission of the data provided by the theft protection module. Furthermore, the external device comprises a processor and a working memory in a known manner. For example, a smart phone, a smartwatch, smart glasses, a remote control designed especially for the power tool, as well as a PC, a server or a data cloud can be considered as external devices. The external device can also be another anti-theft module, so that several anti-theft modules can communicate directly with each other. A "cable" is to be understood as meaning either a power cable for the power supply of the power tool or a data cable for unidirectional or bidirectional data transmission with the power tool, whereby the invention is essentially independent of the configuration of the cable.

For processing and forwarding of the position data determined by the position determination unit, the theft protection module has a computing unit connected to the at least one first data interface. Thus, NEN the data are processed in a particularly advantageous manner self-sufficient of the anti-theft module, without the need for a data connection to an external device would already be necessary. A "computing unit" should be understood to mean any form of processor, eg microcontroller, DSP, ASIC or the like for processing routines, programs and / or scripts, independently of the code sequences used and protocols including the necessary memory components, but also correspondingly discrete and hybrid types Since several anti-theft modules can thus communicate with each other, it is possible to connect another network in order to establish communication with a server or a cloud via one or more of the other anti-theft modules in the case of a non-existent mobile network.

In addition, a further data interface for detecting operating data generated by the power tool and / or for influencing an operating state of the power tool is provided. The possibility of locating and initiation of action can thus be advantageously prevented theft of the power tool and in the event of theft, the investigation and tracking be facilitated. Furthermore, the anti-theft module can serve for a firmware or software update of the power tool. If the anti-theft module contains the basic function of a datalogger, device-specific and application-related data can be recorded and stored internally or externally and edited. It should be appreciated that the additional data interface may utilize the same wired or wireless transmission standards and methods as the aforementioned first data interface. Because of the connection to the cable of the power tool, however, in particular wired transmission paths offer themselves here.

Furthermore, a sensor unit for detecting a separation of the anti-theft module of the cable of the power tool and / or for detecting a severance of the cable between the anti-theft module and the power tool is provided. The separation can be recognized, for example, by the fact that when cutting the cable between the anti-theft module and the power tool, usually a brief between the wires of the cable. In this case, a voltage of less than 50 V, preferably less than 12 V and particularly preferably of 3.3 V is applied. Since the wires have no connection to each other, a capacitance can be measured between them. If the cable is cut, the capacity changes, which is detected by the anti-theft module. It is also conceivable that the anti-theft module at regular intervals sends a data sequence through the cable to the power tool, which is acknowledged by the latter. If the acknowledgment signal is missing, a severing of the cable is assumed. Furthermore, additional test leads are conceivable in the cable. In the case of a wireless data transmission between the anti-theft module and the power tool, in case of interruption of the radio link or a significant reduction of the transmission and reception power from a certain attenuation (RSSI) of an unauthorized distance between the power tool and the anti-theft module and thus of a mechanical Separation can be assumed. Actions in case of a detected disconnection may be, for example, that the anti-theft module via the first data interface issues an alarm, so that a security guard is called, a reconnaissance drone is started or the like. Furthermore, the anti-theft module can report the incident via the additional data interface to the power tool, in order to lock it from further use and thus make it useless.

In a further embodiment of the invention, a sensor for detecting a change in state of the anti-theft module and / or the power tool is provided, the initiation of data transmission to the external device and / or the power tool when exceeding or falling below a defined threshold by one of the sensor generated sensor signal causes. In this case, a motion sensor for detecting a movement of the anti-theft module can be used as the sensor, for example. If the anti-theft module is moved, it can thus detect the movement and bring about corresponding actions, such as, for example, the sending of a position specification to a cloud after a resting phase, the awakening of the arithmetic unit or the like. Advantageously, the energy consumption of the anti-theft module can thus be minimized. In addition, current, voltage, Temperature and other environmental sensors for detecting air pressure, humidity or the like conceivable depending on certain modes of the power tool to be enabled or disabled.

Furthermore, it is provided that the anti-theft module has an energy interface connected to the cable, an energy store and / or a power generation unit for supplying the anti-theft module with energy. In particular, the energy storage and the power generation unit have the advantage that the anti-theft module is supplied with power even in the unplugged state of a power cord or extension cable, so that it can fulfill its intended tasks at any time. As energy storage are any kind of batteries, batteries, etc. in question. The energy generating unit could be, for example, a solar cell, a device for recuperation of kinetic energy or the like. In the case of rechargeable batteries, they can be charged via the cable and the energy interface if the power supply is available. For this purpose, in particular the voltage is adjusted if necessary via an energy conversion unit and / or a charging unit for charging the battery. The person skilled in the corresponding charging and energy conversion units are known, so that will not be discussed further here.

Advantageously, the anti-theft module on a display element for display and / or a control element for changing a status or mode of the anti-theft module and / or the power tool on. For example, in connection with the position determination unit, a predefined area can be defined which generates an alarm by means of geofencing when leaving and initiates one of the actions described. The display element and / or the operating element may be parts of a user-machine interface (HMI), in particular a touch screen. But also LED can the different operating conditions of the anti-theft module, eg alarm active, system ready, network available, battery full, coupling with the power tool present or interrupted or the like. In order to be able to make adjustments to the anti-theft module, alternate tive or in addition to the HMI switch elements such as switches, capacitive or inductive sensors, etc. conceivable.

In a particularly advantageous embodiment, the anti-theft module is inseparably connected to an extension cable. The anti-theft module is firmly integrated on the extension cable, for example, by gluing or welding a cable shield to a housing of the anti-theft module and has a preferably secure connection and receiving possibility for a plug of the cable of the power tool that prevents unauthorized removal of the plug. Thus, the anti-theft module itself can serve as a universal supply unit for the power tool.

In a further refinement, the anti-theft module has a modular design, individual modules of the anti-theft module serving for sensing, data transmission, data processing, power supply, operation or status indication and for securing to the cable of the power tool and individually or combined can be used on the anti-theft module. This allows the user an individual use of the anti-theft module depending on its requirements and financial resources. The individual modules of the anti-theft module, for example, plugged and locked and / or fixed to each other. The modularity allows a very simple expansion of the functionality of the anti-theft module. If the theft protection module, for example, to be mounted behind a stationary power tool, no module for operation and / or status display is required. Likewise, it is possible to dispense with a module for supplying energy by means of a power generation unit and a module for sensing movements. If the anti-theft module is connected to a data cable of a power tool, for example, no module for wireless data communication with the power tool is required. If the energy supply of the anti-theft module takes place solely by means of an energy store, then a corresponding energy storage module can be used, while modules for power generation or voltage adjustment are obsolete. An alternative embodiment of the invention provides an additional housing for receiving the anti-theft module and for preventing unauthorized removal of the cable or the plug of the cable of the electric power tool and an extension cable or a plug of the extension cable. Thus, there is the advantage of using the anti-theft module with almost any extension cable, cable drum, etc. and almost any power tool. The additional housing may be connected either separately or with the theft prevention module.

Advantageously, the anti-theft module and / or the additional housing a mechanical security device, in particular a mechanical lock or combination lock, and / or an electromechanical security device, in particular a relay or the like, to protect against unauthorized removal of the anti-theft module of the cable of the power tool on ,

Further advantages of the invention will become apparent from the features specified in the dependent claims and from the drawings and the description below.

embodiments

drawing

The invention is explained below by way of example with reference to FIGS 1 to 8, wherein like reference numerals in the figures indicate the same components with the same operation. Individual components of the embodiments, the expert will combine as needed accordingly.

Show it

1 shows the use of an anti-theft module according to the invention for various types of power tool machines for machining workpieces, 2 shows the use of an anti-theft module according to the invention for different types of power tool machines, which can typically be used on construction sites,

3 shows the use of an anti-theft module according to the invention for transmitting data to various types of external devices, FIG. 4 shows the anti-theft module according to the invention in a first embodiment,

5 shows the anti-theft module according to the invention in a second embodiment in a modular design,

6 shows the anti-theft module according to the invention in a third embodiment with an additional housing with electromechanical safety device, FIG. 7 shows the anti-theft module according to the invention in a fourth embodiment with an additional housing with mechanical safety device and

8 shows the anti-theft module according to the invention in a fifth embodiment with an additional housing with a mechanical securing device.

DESCRIPTION OF THE EXEMPLARY EMBODIMENTS FIG. 1 shows a first exemplary embodiment of the anti-theft module 10 according to the invention. It is mountable or mounted on a cable 14 fixedly connected to a power tool 12. As already mentioned, the electric machine tool 12 can be used, for example, as a percussion drill or a hammer drill 16, an angle grinder 18, an eccentric or orbital sander 20, a jigsaw 22, a demolition hammer 24, a circular saw 26, an angle grinder 28, a vacuum cleaner 30 or benchtop saw 32 may be formed. However, other corded power tool machines 12, such as planers, polishing machines or the like, as well as wired garden tools, such as lawn mowers, grass trimmers, branch saws or the like, are conceivable for the use of the theft protection module 10 according to the invention. The figure 1 is therefore not to be understood as limiting, but only as a possible embodiment. By "wired" is meant that the electric machine tool 12 has a cable 14 fixedly connected to it, which serves for power supply and / or data transmission of the electric machine tool 12 and which can not be separated from the power tool 12 without the use of tools However, it is also possible to equip new electric power tool machines 12, which have already been produced, with the theft protection module 10 by the manufacturer, so that this can be fitted by the user already fully assembled for the user.

FIG. 2 shows further possible uses of the anti-theft module 10 according to the invention for other forms of wired electric machine tools 12 that can be used on construction sites. These include stone saws 34 and 36, a Baustrahler 38, a welder 40, a construction site radio 42, a power distributor 44, a radiant heater 46 or a concrete mixer 48. Again, the list is not absolute, but only by way of example. Thus, other construction sites, not shown, such as infrastructure elements for data communication, switches, power distribution, etc. for use with the anti-theft module 10 according to the invention are conceivable.

According to FIG. 3, the anti-theft module 10 according to the invention has a position determination unit 50 for determining a geographic position of the theft protection module 10 and at least a first data interface 52 for transmitting data to an external device 54. In the example shown, operates the data interface 52 wirelessly. The transmission typically takes place with transmission standards such as WLAN, BT, BTLE, ZigBee, NFC, RFID, GSM, UMTS, LTE or the like. Of course, proprietary transmission protocols are also conceivable. The position determination unit 50 typically consists of a GPS receiver, but may also include other location services, such as Galileo or Glonass. Within buildings, the location can also be based on WLAN, beacons or existing infrastructure elements, such as equipped with BT or WLAN smoke detectors or the like. Of course, a combination of outdoor and indoor location services is possible.

As an external device 54, FIG. 3 shows by way of example a smartwatch 56, a smartphone 58, a data cloud 60 and a PC 62. As an external device 54, other devices that are not mechanically connected to the power tool 12, such as smart glasses, come especially for the power tool machine designed remote control, a server or the like in question. The external device 54 can also be another anti-theft module 10 or a further power tool 12 so that several anti-theft modules 10 communicate directly with one another and can form a network for integrating further anti-theft modules 10, power tools 12 and / or external devices 54. The external devices 54 communicate with the data interface 52 via the services already mentioned and for this purpose has itself a corresponding data interface for the wired or wireless transmission of the data provided by the theft protection module 10. Furthermore, the external devices comprise a processor and a working memory in a known manner. Since the external devices 54 are well known to those skilled in the art, however, they will not be discussed in more detail here.

In connection with the external device 54, an allowable range can be defined, for example by means of an app or a program, within which the power tool 12 can be operated without restrictions. The permitted area is communicated to the theft prevention module 10 via the first data interface 52 and is transmitted by a computing unit 64 in the sense of a is processed so that it can recognize by means of the position determination unit 50, whether the permitted area is left. In this case, the anti-theft module 10 reports leaving the allowed area as an alarm via the first data interface 52 to the external device 54. Alternatively, however, it is also possible that the detection by leaving the allowed area by the external device 54 takes place. In this case, the theft prevention module 10 only regularly sends its position data to the external device 54 without evaluating it itself. Re-entry into the permitted area can be processed in a corresponding manner.

Moreover, the first data interface 52 can be used for programming, for updating as well as for reading out or possibly resetting the theft protection module 10 via the external device 54.

Furthermore, the anti-theft module 10 according to FIG. 3 has at least one further data interface 66, via which it can exchange data unidirectionally or bidirectionally with the power tool 12. The type of data transmission can be wired or wireless and use the transmission standards already described for the first data interface 52. Thus, e.g. Operating data, error codes, etc. transmitted from the power tool 12 to the anti-theft module 10 and processed there by the computing unit 64, evaluated and optionally forwarded via the first data interface 52 to the external device 54. In addition, the anti-theft module 10 can receive and forward updates to the power tool 12. If the basic function of a data logger is contained in the theft protection module 10, device-related and application-related data can be recorded and stored internally or externally and, if necessary, processed.

The at least one further data interface 66 also allows an intervention in the actuator of the power tool 12, provided that it is equipped accordingly. Thus, in conjunction with the above-described geofencing, for example, the maximum power, the maximum speed, and / or the maximum torque of a drive of the power tool 12 may be reduced depending on the distance from the allowable range to the absolute standstill. It is also conceivable to successively restrict the various operating modes of the power tool machine 12.

FIG. 4 shows a further exemplary embodiment of a theft protection module 10 according to the invention, wherein for the sake of clarity, the position determination unit 50, the first data interface 52, the arithmetic unit 64 and the at least one further data interface 66 have been combined to form a common block 68. However, the anti-theft module 10 is now inseparably connected to an extension cable 70 and has a mechanical receptacle 72 for a plug 74 of the cable 14 of the power tool 12. Most preferably, the cable 14 is a power supply cable 76 and the plug 74 a power plug 78, which may vary depending on the national requirement. Instead of a power supply cable 76 with power plug 78 but in principle also a data cable with a corresponding data connector is conceivable.

So that the cable 14 or the plug 74 can no longer be removed from the receiving device 72, the plug 74 is surrounded by two closure housing halves 80. These are introduced into the receiving device 72 and the receiving device 72 then rotated in such a way that in its interior a positive connection to the cable 14 by means not shown undercut elements, pins, scenes or the like is generated. At the same time, this positive locking causes the closure housing halves 80 to latch, so that they can no longer be pulled out of the receiving device 72 and unauthorized separation of the cable 14 from the theft prevention module 10 is avoided. For justified turning back of the closure housing halves 80, the latching is canceled, for example, by means of an actuator (not shown in more detail), a latch element, an electronic closure element or the like. This backup can be solved via the anti-theft module 10 again, for example by means of a control via the external device 54. In addition to protect the exit of the cable 14 of the power tool 12 against kinking or the entry of dirt, etc. in the To prevent theft prevention module 10, diaphragm elements 82 are embedded in the closure housing halves 80, which are in particular made of elastically sealing material, such as rubber, TPE or the like. Since it is not desirable for unauthorized persons to disconnect the theft deterrent module 10 from the cable 14 of the power tool 12, it is necessary to avoid and / or recognize them in order to carry out actions such as, for example, placing an alarm on an external device 54 Alerting a previously deposited guard service or even starting a reconnaissance drone to initiate. Likewise, when the separation is detected, provision may be made for limiting the function of the power tool machine 12 or for completely blocking the operation.

The separation of the anti-theft module 10 from the cable 14 can be detected, for example, by means of a sensor unit 84 in that the cable 14 between the anti-theft module 10 and the power tool 12 has been severed. Since the most common cutting tools have blades made of metal and when cutting the wires of the cable 14 short-circuited between them, a simple and rapid detection is possible such that the sensor unit 84 between the wires a voltage less than 50 V, preferably smaller 12 V and more preferably of 3.3 V applies, which collapses in the event of a short circuit. Also, in this case, an increased current flow between the wires can be determined by means of a shunt of the sensor module 84, not shown in greater detail. In addition, since the wires have no connection to each other, a capacity is measurable between them. If the cable 14 is severed, the sensor unit 84 detects a change in this capacity. It is also conceivable that the anti-theft module 10 sends a message through the cable 14 to the power tool 12 at regular intervals, which must be acknowledged by the power tool 12. In the case of a separation of the cable 14 from the power tool 12 and / or the anti-theft module 10, this acknowledgment signal remains off and the anti-theft module 10 initiates the above-mentioned measures. Also conceivable are additional test wires in the cable 14. Furthermore, in the case of an existing radio connection between the theft protection mode dul 10 and the power tool 12 via the at least one further data section 66 based on the measurable attenuation (RSSI) on the distance between the theft prevention module 10 and the power tool 12 are closed. If the RSSI value falls below a previously defined value

Threshold, this suggests a severance of the cable 14, since the distance must then be greater than predetermined by the maximum length of the cable 14.

4 shows a sensor 86 for detecting a change in state of the anti-theft module 10 and / or the power tool 12, the initiation of data transmission to the external device 54 and / or to the power tool 12 when exceeding or falling below a defined threshold by one of the Sensor 86 generated sensor signal causes. The sensor 86 is in the example shown part of the sensor unit 84, but may also be formed separately from this. As a sensor 86, for example, a motion sensor for detecting a movement of the theft prevention module 10 comes into question. If the theft prevention module 10 is moved, it can thus detect the movement and effect corresponding actions, such as sending a position specification to the cloud 60 after a resting phase, the awakening of the computing unit 66 or the like. In addition, current, voltage, temperature and other environmental sensors for detecting air pressure, humidity or the like are conceivable, depending on certain modes of the power tool 12 are enabled or disabled.

The anti-theft module 10 has an energy interface 88 connected to the cable 14, an energy store 90 and / or an energy generating unit 92 for supplying the anti-theft module 10 with energy. Energy interface 88, energy storage 90 and power generation unit 92 have been summarized in Figure 4 for the sake of clarity in a block 94, but may also be formed separately from each other. In particular, the energy storage 90 and the power generation unit 92 make it possible to provide the theft protection module 10 with power even in the uninstalled state of the cable 14 or of the extension cable 70, so that it can fulfill its intended tasks at any time. As energy storage 90 come any type of batteries, batteries, etc. in question. The power generation unit 92 may be formed as a solar cell, a kinetic energy recuperation device, or the like. In the case of rechargeable batteries, they can be charged via the cable 14 or 70 and the power cut parts 88 when the power supply is available. For this purpose, in particular the voltage is adjusted if necessary via a not shown energy conversion unit and / or a charging unit, not shown, for charging the battery. The person skilled in the corresponding charging and energy conversion units are known, so that will not be discussed further here.

The theft protection module 10 has a display element 96 for display and / or a control element 98 for changing a status or mode of the theft protection module 10 and / or the power tool 12 on. For example, in connection with the position determination unit 50, independently of an external device 54, a predefined area can be defined which generates an alarm by means of geofencing when leaving and initiates one of the actions described above. In the exemplary embodiment shown, the display element 96 and the operating element 98 are parts of a user-machine interface (HMI) 100, in particular a touch screen, but can also be designed separately. In addition, alternatively or additionally, LEDs are conceivable for the different operating states of the anti-theft module 10, e.g. Alarm active, system ready, network available, battery full, coupling with power tool 12 present or interrupted, or the like. In order to be able to make adjustments to the anti-theft module 10, switch elements, such as switches, capacitive or inductive sensors, etc., are conceivable as an alternative or in addition to the HMI, but these will not be discussed in detail here since their operation is known to the person skilled in the art.

FIG. 5 shows a further exemplary embodiment of the inventive theft protection module 10 with a modular construction. In this case, the anti-theft module 10 comprises not only a base module 102, which has at least the position determination unit 50 and the first data section 52, but also further modules, such as a sensing module 104 with the sensing unit 84 or further sensors 86, a data transmission module 106 with the at least one further data interface 66, a power module 108 with the power interface 88, the energy storage 90 and / or the power generation unit 92 and a fuse module 110 for receiving the plug 74 of the cable 14 in the receiving device 72. In addition to these modules, the anti-theft module 10 but also be supplemented by other modules, such as a data processing module with the computing unit 64 or a control or display module with the HMI 100 and / or other display and controls. This allows the user an individual use of the anti-theft module 10 depending on its requirements and options. The individual modules of the anti-theft module 10 are each plugged and locked and secured against unauthorized separation. Also, alternative modules are conceivable which consist of a unitary combination of the mentioned modules 102 to 110.

A further embodiment of the invention according to Figure 6 provides an additional housing 112 for receiving the anti-theft module 10 and to prevent unauthorized removal of the cable 14 and the plug 74 of the cable 14 of the power tool 12 and the extension cable 70 and a plug 114 of the extension cable 70 before. For this purpose, the anti-theft module 10 is simply inserted between the two connectors 74 and 114. This allows the combination of the anti-theft module 10 with almost any extension cable 70, cable drum, etc. and almost any power tool 12. The additional housing 112 is formed separately from the anti-theft module 10 in the example shown, but can also be connected to this. The housing 112 consists of a lower shell 116 and a hinge 118 movably mounted thereon by means of a hinge. If the theft protection module 10 is inserted, the cover 118 is closed and secured against unauthorized opening via an electromechanical safety device 120, for example a relay with a locking bolt fastened thereto. To avoid the ingress of dirt, the housing 112 also has corresponding rubber grommets 122 at its ends, in which the cable 14 of the power tool 12 and the extension cable 70 are sealingly inserted. Finally, FIGS. 7 and 8 also show further exemplary embodiments of the anti-theft module 10 according to the invention, the housing 112 being shown in FIG. 7 as a combination lock 124 and in FIG. 8 as a mechanical lock 126 having a locking cylinder 128 and matching keys 130 for protection against unauthorized removal of the lock Theft prevention module 10 is performed by the cable 14 of the power tool 12 and the extension cable 70.

It should finally be pointed out that the exemplary embodiments shown are limited neither to FIGS. 1 to 8 nor to the form of the theft-proof module 10 or of the housing 112 shown there. In addition, it should explicitly be mentioned that the embodiments shown can be freely combined depending on the requirements of the anti-theft module 10. This applies for example to the use of the housing 112 both in the variant of the anti-theft module 10 with a fixed connection to the cable 14 of the power tool, as well as the variants with fixed connection to the extension cable 70 and as separated from the cable 14 and the extension cable 70 trained part. The same applies to the modular structure of the theft protection module 10th

Claims

claims

An anti-theft module (10) for a power tool (12) comprising a position determining unit (50) for determining a geographic position of the theft deterrent module (10) and at least a first data interface (52) for transmitting data, particularly positional data, to an external device (54), characterized in that the anti-theft module (10) on a fixed to the power tool (12) connected cable (14) is mounted or mounted.

2. Anti-theft module (10) according to claim 1, characterized by a with the at least one first data interface (52) connected computing unit (64) for processing and forwarding of the position determining unit (50) determined position data.

3. Theft protection module (10) according to any one of the preceding claims, characterized by a further data interface (66) for detecting by the power tool (12) generated operating data and / or influencing an operating state of the power tool (12).

4. Anti-theft module (10) according to any one of the preceding claims, characterized by a sensor unit (84) for detecting a separation of the theft protection module (10) of the cable (12) of the power tool and / or for detecting a severing of the cable (14) between the Anti-theft module (10) and the power tool (12).

5. Anti-theft module (10) according to one of the preceding claims, characterized by a sensor (86) for detecting a state change of the theft protection module (10) and / or the power tool (12) and for initiating a data transfer to the external device (54) and / or to the power tool (12) when exceeding or falling below a defined threshold by one of the sensor (86) generated sensor signal.

Anti-theft module (10) according to claim 5, characterized in that the sensor (86) is a movement sensor for detecting a movement of the anti-theft module (10).

Anti-theft module (10) according to one of the preceding claims, characterized by an energy interface (88) connected to the cable (14), an energy store (90) and / or an energy generating unit (92) for supplying the anti-theft module (10) with energy.

Anti-theft module (10) according to one of the preceding claims, characterized by a display element (96) for display and / or a control element (98) for changing a status or mode of the anti-theft module (10) and / or the power tool (12).

Anti-theft module (10) according to claim 8, characterized in that the display element (96) and / or the operating element (98) parts of a user-machine interface (100), in particular a touch screen, are.

Anti-theft module (10) according to one of the preceding claims, characterized in that the anti-theft module (10) is inseparably connected to an extension cable (70).

Anti-theft module (10) according to claim 11, characterized by a mechanical receiving device (72) for a plug (74) of the cable (14) of the power tool (12), which is designed such that it prevents unauthorized removal of the plug (74).

Theft protection module (10) according to one of the preceding claims, characterized by a modular design, wherein individual modules (102, 104, 106, 108, 110) of the theft protection module (10) for sensing, data transmission, data processing, power supply, operation or Status indication and for securing to the cable (14) serve the power tool (12) and can be used individually or in combination with the anti-theft module (10).

13. Anti-theft module (10) according to any one of the preceding claims, characterized by an additional housing (112) for receiving the anti-theft module (10) and for preventing unauthorized removal from the cable (14) of the power tool (12).

14. Anti-theft module (10) according to any one of the preceding claims, characterized in that the anti-theft module (10) and / or the additional housing (112) a mechanical securing device (124, 126), in particular a mechanical lock (126) or a Zah- lenschloss (124), and / or an electromechanical safety device (120), in particular a relay or the like, to protect against unauthorized removal of the anti-theft module (10) of the cable (14) of the power tool (12).

15. Electric machine tool (12) with an anti-theft module (10) according to one of the preceding claims, wherein the cable (14) for power and / or data supply to the power tool (12).