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 andcomfortable, electric hand tool devices, such as hand drills, circular saws orRotary 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 usedoften 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 toolsCentral warehouse using a key and an unlock key, whichshare each other. This solution is only suitable for severalElectrical 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 insertin the tool holder, which can only be accessed using an assigned keycan be removed to block its intended use. moreovercan the electric hand tool device locally with a loop attached to the lock setbe determined. A disadvantage is the necessary availability of the lock insert and theKey at the location and at the time of an appropriate backup of theElectric hand tool and their mechanical wear due to the dirtthe 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. SuchSolution with protruding keys is not for safety reasons on construction sitespossible.
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 unitcan also be operated contactlessly using a key with an infrared transmitter. Also aregenerally 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 usingRadio or infrared transmitters or receivers and transponders known. The Use of transponders in rings and wristwatches for personalIdentification is previously known from WO 09732284 A1. Consider such solutionsbut not the specific requirements for handheld power tools.
Nach der DE 196 31 517 A1 ist die Verwendung von über eine Motorsteuerelektronik drehzahlsteuerbaren 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 electronicscontrollable collector and slip ringless electric motors, especially switchedReluctance motors, in high-performance electrical hand tools as well as air coolingof 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 forthe use lock on electrical hand tool devices designed on construction sites.Another aspect is the adaptation to electric hand tools withEngine 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 deviceControl circuit with an electronic lock containing a secretGeneration of a dependent on an authorization by an assigned keySecurity signal, a transceiver, which with an outside ofHousing transceiver or a transponder discontinuouslycommunicates without contact, and a blocking device to prevent oneappropriate use of the electric hand tool by a notauthorized 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 oneElectric hand tool device, however, makes it unattractive as a whole, because thestolen 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 onemechanical lock, which is in a moving mechanism of the electrical hand tool deviceengages an electrical lock, which in the energy supply of the electric driveintervenes or an electronic lock, which is time-controlled in the engine control electronicsintervenes.
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 switchedReluctance motor necessary, motor control electronics not by simple intervention in theElectric hand tool device can be bridged. In addition, one or moreIntegrate components into the engine electronics so that they are manufacturedas 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 pairsaccording 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 aReceiving unit the advantage of not being dependent on an internal energy source, which in thepractical 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 iswhen used appropriately near the handheld power toolsecure communication is always guaranteed. The key is atthe handling of the electric hand tool automatically in theCommunication area introduced and necessary when the user is absentaway.
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 bodyadjacent bracelet, wrist watch or finger ring as authorizationgiven, which means that there is no excessive safety risk for the user even on the construction siteconsists.
Durch eine Identifikation des Elektrohandwerkzeuggerätes mit dem private-key als Geheimnis, bspw. durch die Gerätenummer, ist im Verlustfall des Schlüssels mit dem publickey 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 asThe key, for example, the device number, is lost if the key is lost with the publickey 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, butnevertheless the usage authorization of one or a group ofAuthorizing 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.
NachFig. 1 weist ein Elektrohandwerkzeuggerät1 eine mikrocontrollergesteuerte Kontrollschaltung2, verbunden mit einem elektronischen Schloss3, welches ein Geheimnis4 beinhaltet, sowie mit einer Sende-Empfangseinheit5, bspw. einer elektromagnetischen Spule, welche mit einem ausserhalb eines Gehäuses6 in einer Armbanduhr befindlichen Transponder7 mit einem Schlüssel8 diskontinuierlich berührungslos, bspw. über eine Distanz von bis zu 1 m, kommuniziert, und ein Sperrmittel9 auf, welches mit dem als geschalteter Reluktanzmotor ausgeführten Elektroantrieb10 über eine Motorelektronik11 verbunden ist, wobei die Motorelektronik11 die mikrocontrollergesteuerte Kontrollschaltung2, das elektronische Schloss3, das Geheimnis4 und das Sperrmittel9 beinhaltet.According toFig. 1, an electric power tool1 is a microprocessor-controlled control circuit2 connected to an electronic lock3, which contains a secret4, as well as with a transmitting-receiving unit5, for example. Of an electromagnetic coil, which with an outside of a housing6 in a wristwatch located transponder7 with a key8 communicates discontinuously without contact, for example over a distance of up to 1 m, and a blocking means9 , which is connected to the electric drive10 designed as a switched reluctance motor via motor electronics11 , the motor electronics11 microcontroller-controlled control circuit2 , the electronic lock3 , the secret4 and the locking means9 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, whichdiscontinuously requests the key via the communication link and atsuccessful authorization use for a finite period of time, advantageous inRange from a few ms to a few hours, and this status over this periodvolatile stores.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10029138ADE10029138A1 (en) | 2000-06-14 | 2000-06-14 | Locking device for prevention of use of hand-tool equipment, includes electronic lock containing a secret code |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10029138ADE10029138A1 (en) | 2000-06-14 | 2000-06-14 | Locking device for prevention of use of hand-tool equipment, includes electronic lock containing a secret code |
| Publication Number | Publication Date |
|---|---|
| DE10029138A1true DE10029138A1 (en) | 2002-01-03 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10029138ACeasedDE10029138A1 (en) | 2000-06-14 | 2000-06-14 | Locking device for prevention of use of hand-tool equipment, includes electronic lock containing a secret code |
| Country | Link |
|---|---|
| DE (1) | DE10029138A1 (en) |
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