DE10029138A1 - Locking device for prevention of use of hand-tool equipment, includes electronic lock containing a secret code - Google Patents

Locking device for prevention of use of hand-tool equipment, includes electronic lock containing a secret code

Info

Publication number
DE10029138A1
DE10029138A1 DE10029138A DE10029138A DE10029138A1 DE 10029138 A1 DE10029138 A1 DE 10029138A1 DE 10029138 A DE10029138 A DE 10029138A DE 10029138 A DE10029138 A DE 10029138A DE 10029138 A1 DE10029138 A1 DE 10029138A1
Authority
DE
Germany
Prior art keywords
hand tool
electric hand
tool device
key
electronic lock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE10029138A
Other languages
German (de)
Inventor
Ferdinand Kristen
Hans-Werner Bongers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to DE10029138A priority Critical patent/DE10029138A1/en
Publication of DE10029138A1 publication Critical patent/DE10029138A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1427—Mechanical actuation by lifting or attempted removal of hand-portable articles with transmitter-receiver for distance detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0205—Specific application combined with child monitoring using a transmitter-receiver system
    • G08B21/0213—System disabling if a separation threshold is exceeded
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/08—Reluctance motors
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves

Abstract

A locking device for prevention of use of an electric hand-tool having an electric drive (10) within a housing (6) which contains a micro-controller controlled test circuit (2) connected to an electronic lock (3) which contains a secret code, as well as a first transmit-receive unit (5) and a locking device (9), for prevention of use of the electric hand-tool equipment. A second transmit-receive unit or a transponder (7), joined to a key (8), is provided external of the housing (6) for communicating to the first transmit-receive unit (5).

Description

Die Erfindung betrifft eine Benutzungssperre für, insbesondere leistungsstarke und komfortable, Elektrohandwerkzeuggeräte, wie Handbohrmaschinen, Handkreissägen oder Bohrhämmer.The invention relates to a user lock for, in particular powerful and comfortable, electric hand tool devices, such as hand drills, circular saws or Rotary hammers.

Auf Baustellen, wo hochwertige Elektrohandwerkzeuggeräte Anwendung finden, kommt es häufig vor, dass diese bei Einbruch oder Unachtsamkeit des Nutzers gestohlen werden.It happens on construction sites where high-quality electrical hand tool devices are used often pretends that these are stolen if the user breaks in or is neglected.

Die US 4472952 beschreibt ein Ausleihsystem für Elektrohandwerkzeuggeräte eines Zentrallagers unter Verwendung von einem Schlüssel und einem Entsperrschlüssel, welche sich gegenseitig freigeben. Diese Lösung eignet sich nur für mehrere Elektrohandwerkzeuggeräte eines Zentrallagers.US 4472952 describes a loan system for handheld power tools Central warehouse using a key and an unlock key, which share each other. This solution is only suitable for several Electrical hand tool devices of a central warehouse.

Nach der US 5501555 ist bekannt, ein Elektrohandwerkzeuggerät mit einem Schlosseinsatz in der Werkzeugaufnahme, welche nur über einen zugeordneten Schlüssel aus dieser wieder entfernt werden kann, bezüglich der zweckentsprechenden Benutzung zu blockieren. Zudem kann das Elektrohandwerkzeuggerät mit einer am Schlosselnsatz befestigten Schlinge örtlich festgelegt werden. Nachteilig ist die notwendige Verfügbarkeit des Schlosseinsatzes und des Schlüssels am Ort und zu der Zeit einer zweckentsprechenden Sicherung des Elektrohandwerkzeuggerätes sowie deren mechanischer Verschleiss durch den Schmutz auf der Baustelle.According to US 5501555 it is known an electric hand tool device with a lock insert in the tool holder, which can only be accessed using an assigned key can be removed to block its intended use. moreover can the electric hand tool device locally with a loop attached to the lock set be determined. A disadvantage is the necessary availability of the lock insert and the Key at the location and at the time of an appropriate backup of the Electric hand tool and their mechanical wear due to the dirt the construction site.

Nach der US 4301664 wird ein physischer Schlüssel im Armband aufbewahrt. Eine derartige Lösung mit hervorstehenden Schlüsseln ist aus Sicherheitsgründen auf Baustellen nicht möglich.According to US 4301664, a physical key is kept in the bracelet. Such Solution with protruding keys is not for safety reasons on construction sites possible.

Nach der US 5019812 kann ein allgemeines mechanisches Schloss mit einer Kontrolleinheit auch kontaktlos über einen Schlüssel mit Infrarotsender bedient werden. Zudem sind allgemein vielfältige Lösungen zur kontaktlosen Identifizierung, bspw. nach US 4742470, Blockierung im Diebstahlsfall bspw. nach US 5280267, zur Nutzungsberechtigung bspw. nach US 6005490 sowie zur Lokalisierung bspw. nach US 4918425 durch den Einsatz von Radio- oder Infrarot-Sendern bzw. Empfängern sowie Transpondern bekannt. Die Verwendung von Transpondern in Ringen und Armbanduhren zur personenbezogenen Identifikation ist aus der WO 09732284 A1 vorbekannt. Derartige Lösungen berücksichtigen jedoch nicht die spezifischen Voraussetzungen bei Elektrohandwerkzeuggeräten.According to US 5019812, a general mechanical lock with a control unit can also be operated contactlessly using a key with an infrared transmitter. Also are generally diverse solutions for contactless identification, for example according to US 4742470, Blockage in the event of theft, for example according to US 5280267, for use authorization, for example. according to US 6005490 and for localization, for example according to US 4918425, by using Radio or infrared transmitters or receivers and transponders known. The  Use of transponders in rings and wristwatches for personal Identification is previously known from WO 09732284 A1. Consider such solutions but not the specific requirements for handheld power tools.

Nach der DE 196 31 517 A1 ist die Verwendung von über eine Motorsteuerelektronik drehzahl­ steuerbaren kollektor- und schleifringlosen Elektromotoren, insbesondere geschalteter Reluktanzmotoren, in leistungsstarken Elektrohandwerkzeuggeräten sowie die Luftkühlung der im Gehäuse angeordneten Steuerelektronik vorbekannt.According to DE 196 31 517 A1, the use of speed via an engine control electronics controllable collector and slip ringless electric motors, especially switched Reluctance motors, in high-performance electrical hand tools as well as air cooling of the control electronics arranged in the housing.

Die Aufgabe der Erfindung besteht in der Realisierung einer einfach herzustellenden und für den Einsatz auf Baustellen ausgelegten Benutzungssperre für Elektrohandwerkzeuggeräte. Ein weiterer Aspekt besteht in der Anpassung an Elektrohandwerkzeuggeräte mit Motorsteuerelektronik.The object of the invention is to realize an easy to manufacture and for the use lock on electrical hand tool devices designed on construction sites. Another aspect is the adaptation to electric hand tools with Engine control electronics.

Die Aufgabe wird im wesentlichen durch die Merkmale der unabhängigen Ansprüche gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.The task is essentially solved by the features of the independent claims. Advantageous further developments result from the subclaims.

Im wesentlichen beinhaltet das Elektrohandwerkzeuggerät eine mikrocontrollergesteuerte Kontrollschaltung mit einem ein Geheimnis beinhaltenden elektronischen Schloss zur Generierung eines von einer Autorisierung durch einen zugeordneten Schlüssel abhängigen Sicherheitssignals, einer Sende-Empfangseinheit, welche mit einer ausserhalb des Gehäuses befindlichen Sende-Empfangseinheit oder einem Transponder diskontinuierlich berührungslos kommuniziert, und einem Sperrmittel zur Unterbindung einer zweckentsprechenden Benutzung des Elektrohandwerkzeuggerätes durch einen nicht autorisierten Nutzer.The electric hand tool device essentially contains a microcontroller-controlled device Control circuit with an electronic lock containing a secret Generation of a dependent on an authorization by an assigned key Security signal, a transceiver, which with an outside of Housing transceiver or a transponder discontinuously communicates without contact, and a blocking device to prevent one appropriate use of the electric hand tool by a not authorized users.

Die Benutzungssperre verhindert zwar nicht einen konkreten Diebstahl eines Elektrohandwerkzeuggerätes, macht diesen jedoch in der Gesamtheit unattraktiv, da die gestohlenen Elektrohandwerkzeuggeräte nicht benutzbar sind.The lock does not prevent a specific theft of one Electric hand tool device, however, makes it unattractive as a whole, because the stolen electrical hand tool devices cannot be used.

Das über das Sicherheitssignal betätigte Sperrmittel ist entweder eine elektrisch betätigte mechanische Sperre, welche in eine bewegte Mechanik des Elektrohandwerkzeuggerätes eingreift, eine elektrische Sperre, welche in die Energieversorgung des Elektroantriebs eingreift oder eine elektronische Sperre, welche zeitgesteuert in die Motorsteuerelektronik eingreift. The locking means actuated via the security signal is either an electrically actuated one mechanical lock, which is in a moving mechanism of the electrical hand tool device engages an electrical lock, which in the energy supply of the electric drive intervenes or an electronic lock, which is time-controlled in the engine control electronics intervenes.  

Im letzten Fall ist vorteilhaft, dass eine derartige, zur Steuerung eines geschalteten Reluktanzmotors notwendige, Motorsteuerelektronik nicht durch einfache Eingriffe in das Elektrohandwerkzeuggerät überbrückbar ist. Zudem lassen sich einzelne oder mehrere Komponenten in die Motorelektronik integrieren, so dass diese hinsichtlich der Herstellung als einzelne Bauteile entfallen.In the latter case, it is advantageous that such a device is used to control a switched Reluctance motor necessary, motor control electronics not by simple intervention in the Electric hand tool device can be bridged. In addition, one or more Integrate components into the engine electronics so that they are manufactured as individual components.

Die Kommunikation kann vorteilhaft über Radiowellen, Infrarot oder über Ultraschall erfolgen. Als Schlüssel-Schloss-Paar werden vorteilhaft bestimmte konkrete Frequenzen, Frequenzfolgen oder binäre Daten benutzt, bspw. asymmetrische Schlüsselpaare entsprechend der public-key Autorisierung.Communication can advantageously take place via radio waves, infrared or ultrasound. Certain specific frequencies are advantageously used as a key and lock pair, Frequency sequences or binary data are used, for example asymmetrical key pairs according to the public-key authorization.

Ein Transponder als kommunizierender Teil des Schlüssels bietet gegenüber einer Sende- Empfangseinheit den Vorteil, nicht von einer internen Energiequelle abhängig zu sein, die im praktischen Einsatz auf einer Baustelle oft nicht vorrätig ist.A transponder as a communicating part of the key offers a Receiving unit the advantage of not being dependent on an internal energy source, which in the practical use on a construction site is often not in stock.

Bei einer vorteilhaften fixierten Anordnung des Transponders im Handbereich, welche sich bei der zweckentsprechenden Benutzung notwendig nahe des Elektrohandwerkzeuggerätes befindet, ist stets eine sichere Kommunikation gewährleistet. Der Schlüssel wird somit bei der Handhabung des Elektrohandwerkzeuggerätes automatisch in den Kommunikationsbereich eingeführt und bei Abwesenheit des Nutzers notwendig mit diesem entfernt.With an advantageous fixed arrangement of the transponder in the hand area, which is when used appropriately near the handheld power tool secure communication is always guaranteed. The key is at the handling of the electric hand tool automatically in the Communication area introduced and necessary when the user is absent away.

Durch die kleine Bauform ist die Integration des Transponders in ein stets eng am Körper anliegendes Armband, eine Armbanduhr oder einen Fingerring als Autorisierungsmittel gegeben, wodurch auch auf der Baustelle kein überhöhtes Sicherheitsrisiko für den Nutzer besteht.Due to the small design, the transponder is always integrated into the body adjacent bracelet, wrist watch or finger ring as authorization given, which means that there is no excessive safety risk for the user even on the construction site consists.

Durch eine Identifikation des Elektrohandwerkzeuggerätes mit dem private-key als Geheimnis, bspw. durch die Gerätenummer, ist im Verlustfall des Schlüssels mit dem public­ key durch die Hinterlegung der zur Autorisierung nötigen Information, bspw. des privat-key, bei einer sicheren Hinterlegungsstelle ein Ersatzschlüssel berechenbar und herstellbar. Zudem besteht die Möglichkeit, jedem Nutzer einer Nutzergruppe verschiedene, aber dennoch die Benutzungsberechtigung von einem oder einer Gruppe von Elektrohandwerkzeuggeräten autorisierende, Schlüssel zuzuweisen.By identifying the handheld power tool with the private key as The key, for example, the device number, is lost if the key is lost with the public key by storing the information required for authorization, e.g. the private key, a spare key can be calculated and manufactured at a secure depository. In addition, there is the possibility to give each user of a user group different, but nevertheless the usage authorization of one or a group of Authorizing electric hand tool devices to assign keys.

Die Erfindung wird bezüglich eines vorteilhaften Ausführungsbeispiels näher erläutert mit:The invention is explained in more detail with respect to an advantageous exemplary embodiment with:

Fig. 1 als Elektrohandwerkzeuggerät mit Benutzungssperre. Fig. 1 as an electric hand tool device with use lock.

Nach Fig. 1 weist ein Elektrohandwerkzeuggerät 1 eine mikrocontrollergesteuerte Kontrollschaltung 2, verbunden mit einem elektronischen Schloss 3, welches ein Geheimnis 4 beinhaltet, sowie mit einer Sende-Empfangseinheit 5, bspw. einer elektromagnetischen Spule, welche mit einem ausserhalb eines Gehäuses 6 in einer Armbanduhr befindlichen Transponder 7 mit einem Schlüssel 8 diskontinuierlich berührungslos, bspw. über eine Distanz von bis zu 1 m, kommuniziert, und ein Sperrmittel 9 auf, welches mit dem als geschalteter Reluktanzmotor ausgeführten Elektroantrieb 10 über eine Motorelektronik 11 verbunden ist, wobei die Motorelektronik 11 die mikrocontrollergesteuerte Kontrollschaltung 2, das elektronische Schloss 3, das Geheimnis 4 und das Sperrmittel 9 beinhaltet.According to Fig. 1, an electric power tool 1 is a microprocessor-controlled control circuit 2 connected to an electronic lock 3, which contains a secret 4, as well as with a transmitting-receiving unit 5, for example. Of an electromagnetic coil, which with an outside of a housing 6 in a wristwatch located transponder 7 with a key 8 communicates discontinuously without contact, for example over a distance of up to 1 m, and a blocking means 9 , which is connected to the electric drive 10 designed as a switched reluctance motor via motor electronics 11 , the motor electronics 11 microcontroller-controlled control circuit 2 , the electronic lock 3 , the secret 4 and the locking means 9 includes.

Das Sperrmittel ist vorteilhaft eine Programmroutine der Motorelektronik, welches diskontinuierlich den Schlüssel über die Kommunikationsverbindung abfragt und bei erfolgreicher Autorisierung die Benutzung für einen endlichen Zeitabschnitt, vorteilhaft im Bereich von einigen ms bis zu einigen h, freigibt und diesen Status über diesen Zeitabschnitt flüchtig speichert.The locking means is advantageously a program routine of the engine electronics, which discontinuously requests the key via the communication link and at successful authorization use for a finite period of time, advantageous in Range from a few ms to a few hours, and this status over this period volatile stores.

Claims (5)

1. Elektrohandwerkzeuggerät mit einem Elektroantrieb (10) innerhalb eines Gehäuses (6) und einer Benutzungssperre, dadurch gekennzeichnet, dass das Elektrohandwerkzeuggerät (1) innerhalb des Gehäuses (6) eine mikrocontrollergesteuerte Kontrollschaltung (2), verbunden mit einem elektronischen Schloss (3), welches ein Geheimnis (4) beinhaltet, sowie mit einer ersten Sende-Empfangseinheit (5), und einem Sperrmittel (9) zur Unterbindung der zweckentsprechenden Benutzung des Elektrohandwerkzeuggerätes (1) aufweist und dass ausserhalb des Gehäuses (6) eine zweite Sende-Empfangseinheit oder ein Transponder (7), welcher mit einem Schlüssel (8) verbunden ist, der ersten Sende- Empfangseinheit (5) kommunizierbar zugeordnet ist.1. Electric hand tool device with an electric drive ( 10 ) within a housing ( 6 ) and a use lock, characterized in that the electric hand tool device ( 1 ) within the housing ( 6 ) has a microcontroller-controlled control circuit ( 2 ), connected to an electronic lock ( 3 ), which contains a secret ( 4 ), as well as with a first transceiver unit ( 5 ) and a blocking means ( 9 ) for preventing the appropriate use of the electric hand tool device ( 1 ) and that outside the housing ( 6 ) a second transceiver unit or a transponder ( 7 ), which is connected to a key ( 8 ), is communicatively assigned to the first transceiver unit ( 5 ). 2. Elektrohandwerkzeuggerät nach Anspruch 1, dadurch gekennzeichnet, dass das Elektrohandwerkzeuggerät (1) mit einem als geschalteten Reluktanzmotor ausgeführten Elektroantrieb (10) über eine Motorelektronik (11) verbunden ist, wobei die Motorelektronik (11) zumindest die mikrocontrollergesteuerte Kontrollschaltung (2) oder das elektronische Schloss (3) oder das Geheimnis (4) oder das Sperrmittel (9) beinhaltet.2. Electric hand tool device according to claim 1, characterized in that the electric hand tool device ( 1 ) is connected to an electric drive ( 10 ) designed as a switched reluctance motor via motor electronics ( 11 ), the motor electronics ( 11 ) at least the microcontroller-controlled control circuit ( 2 ) or that electronic lock ( 3 ) or the secret ( 4 ) or the locking means ( 9 ). 3. Elektrohandwerkzeuggerät nach Anspruch 1 oder nach Anspruch 2, dadurch gekennzeichnet, dass das Geheimnis (4) und der Schlüssel (8) asymmetrische, digitale Schlüsselpaare darstellen.3. Electric hand tool device according to claim 1 or claim 2, characterized in that the secret ( 4 ) and the key ( 8 ) represent asymmetrical, digital key pairs. 4. Elektrohandwerkzeuggerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Sperrmittel (9) eine Programmroutine der Motorelektronik (11) ist.4. Electric hand tool device according to one of the preceding claims, characterized in that the locking means ( 9 ) is a program routine of the motor electronics ( 11 ). 5. Elektrohandwerkzeuggerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Transponder (7) in ein im Bereich der Hand fixierbares Autorisierungsmittel integriert ist.5. Electric hand tool device according to one of the preceding claims, characterized in that the transponder ( 7 ) is integrated in an authorization means which can be fixed in the region of the hand.
DE10029138A 2000-06-14 2000-06-14 Locking device for prevention of use of hand-tool equipment, includes electronic lock containing a secret code Ceased DE10029138A1 (en)

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