EP1002177B1 - Method for operating a remote control, and remote control - Google Patents

Method for operating a remote control, and remote control Download PDF

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Publication number
EP1002177B1
EP1002177B1 EP98948731A EP98948731A EP1002177B1 EP 1002177 B1 EP1002177 B1 EP 1002177B1 EP 98948731 A EP98948731 A EP 98948731A EP 98948731 A EP98948731 A EP 98948731A EP 1002177 B1 EP1002177 B1 EP 1002177B1
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EP
European Patent Office
Prior art keywords
signal
remote control
base station
signals
contact
Prior art date
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Expired - Lifetime
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EP98948731A
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German (de)
French (fr)
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EP1002177A2 (en
Inventor
Stefan Schmitz
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Robert Bosch GmbH
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Robert Bosch GmbH
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/28—Electric signal transmission systems in which transmission is by pulses using pulse code

Definitions

  • the invention is based on a method as in the German patent application DE 197 43 101 A1 is described. Then a remote control is assigned to an in a motor vehicle arranged base station by the latter sends a search signal, whereupon in the range of the Remote controls located by return signals a contact signal to those characteristic of the remote controls Answer times.
  • a search signal By evaluating the entry times of the contact signal feedback determines the Base station the remote controls present. One of those selects her to do a challenge / response verification with her perform. Because the information about the remote controls present are not in the contact signal, but contained in the time of its return, the contact signal be simple and the entire detection thereby done very quickly. The detection speed is determined only by the number of provided Time window for the individual remote controls. Should a base station, however, a very large number of remote controls assigned, the procedure loses the Advantage of its speed.
  • An electronic identification system is known from US Pat. No. 5,266,925.
  • a Interrogation unit is intended to capture information from an electronic label. Are located however, multiple electronic labels in the query area are intended to communicate only with one of the electronic labels. For this the Query unit an address.
  • the electronic ones in range Labels receive the address and send a response signal when their specific Identification number is greater than the sent address. Answer several electronic labels simultaneously, the interrogator sends an incremented Address until only an electronic label responds.
  • the electronic Labels can send their response signals in time windows that are characteristic of them, which serve as a further distinguishing criterion. It happens within a time window for collisions, the separation procedure described above must be carried out become.
  • the problem is solved by a method with the features of the main claim and trained to carry it out Devices according to the subclaims.
  • the invention Procedure allowed by individual time slots several remote controls are assigned, the assignment of one large number of remote controls to a base station unchanged high allocation recognition speed. The The number of timeslots can thus be small, the allocation recognition speed be held high.
  • several remote controls responding in the same time slot advantageously serves an additional control signal with which the base station causes the remote controls to control Send device codes. Used as recognition information the base station particularly advantageous the intelligibility the returned device codes.
  • the remote controls are random to hand over set contact signals excited, the first uniquely responding remote control is selected. Thereby the remote control is also clearly identified then with just a few steps and accordingly quickly if there are several remote controls assigned to the same time slot are within range of the base station.
  • FIG. 1 shows a block diagram of an assignment arrangement
  • Figure 2 is a flow chart to illustrate your Operation
  • Figure 3 shows the principle of time slot allocation
  • Figure 4 the structure of a search signal.
  • reference numeral 10 denotes a base station, that can be part of a device or an object or is permanently assigned to one.
  • the base station is part of the access control facility Building or a motor vehicle.
  • the reference number 20 denotes an actuating device called remote control in the following, which of the base station 10 is functional Assigned contactlessly via a signal transmission path 30 is.
  • the remote control 20 can be, for example Be a transponder.
  • About active connections, not shown acts the base station 10 on the technical device one whose part or which it is assigned to.
  • the core of the base station 10 is a microprocessor 13, which in particular the output of signals by the base station 10 monitors and initiates and incoming signals evaluates. It is connected via a coding / decoding unit 12 a transceiver 11 for delivery or receipt from contactless via the signal transmission path 30 transmitted signals connected.
  • the coding / decoding unit 12 is used to encrypt / decrypt the between microprocessor 13 and transceiver 11 exchanged signals.
  • the microprocessor 13 is a memory 15 assigned. There is a serial number in it 16, a device code 17, a cryptic key code 31 and a directory 18 with the group numbers and the Device codes assigned to group numbers 27 of the base station 10 assigned remote controls 20.
  • the device code 17 denotes the associated device, i.e.
  • Serial number 16 is characteristic for mutually assigned base stations 10 and Remote controls 20.
  • the ones entered in directory 18 Group numbers 28 differentiate those assigned to a base station 10 Remote controls 20 with the same serial numbers, the respective assigned device code 27 is used in conjunction with the cryptic key code 31 to verify a remote control belonging to the group number 20.
  • Equivalent for separate storage of cryptic key codes 31 and device codes 27 can also be entered directly in directory 18 the links used for the verification are stored his. In the directory 18 are also the device codes 27 no longer approved remote controls 20 filed were lost or stolen.
  • the serial numbers 16 are determined by the manufacturer of the technical device, the base station 10 or the remote controls 20 assigned. When using the arrangement in motor vehicles For example, the determination by the vehicle manufacturer respectively. The latter can also use the cryptic key code 31 determine by means of which the affiliation of a remote control 20 to the base station 10 is verified.
  • the remote control 20 has one on the base station side Transceiver 11 corresponding transceiver 21 to receive from the base stadium 10 emitted signals or to emit contactless transmitted signals to the base station 10.
  • the transceiver 21 is a coding / decoding unit 22 encoded for decryption / encryption Downstream signals.
  • a microprocessor 24 is connected, which in particular the evaluation of the via the transceiver 21 incoming signals, depending on the results Initiates follow-up action, and the output of output signals supervised.
  • One is assigned to the microprocessor 24 Storage unit 25.
  • the serial number 16 is one for the base station 10 and associated Actuators 20 existing overall device characteristic code and identical to that in memory 15 the base station 10 contained serial number.
  • the group number 28 is used to distinguish the same serial number having remote controls 20. It will be in use the overall device set by the user.
  • the device code 27 is made by the manufacturer of the remote control 20 assign and clearly identify them.
  • the cryptic Key code 31 is identical to that in the base station 10 existing key code and is used to verify the Belonging to a base station 10. He is by the Manufacturer of the technical associated with the base station 10 Establishment set.
  • Signal transmission path 30 for contactless transmission transferable signals between the remote control side Transceiver 21 and the base station side Transceiver 11. From the base station side Transceiver 11 reach outgoing signals all those within their reach at the same time Remote controls 20. Infrared signals are expedient as signals or high frequency signals used.
  • a plurality of remote controls 20 can be assigned to a base station 10 his. All assigned remote controls 20 and the Base station 10 itself has 15, 25 in its memories have an identical serial number 16 and use the Verification of an identical cryptic key code 31.
  • the individual remote controls 20 differ by their group numbers. They are usually simple assigned so that a remote control by the group number 28 is clearly identified. Certain group numbers can moreover, simultaneously assigned to several remote controls 20 his. Those with the same group number 28 Remote controls 20 differ in their device code 27th
  • FIG. 2 The mode of operation is described below with reference to FIGS. 2 and 3 the device shown in Figure 1 explained.
  • the process steps in FIG. 2 are each a letter B or F is prefixed, which shows whether the associated process step in the base station 10: B or in the remote control 20: F takes place.
  • the mapping recognition process is - usually - through the actuation of a mechanical, electrical, not shown or electro-optical trigger mechanism by a A user resolved, step 100.
  • the trigger mechanism for Example of operating the door handle.
  • the microprocessor conducts after the released signal has been triggered 13 of the base station 10 the delivery of a search signal through the transceiver 11, step 102.
  • the search signal contains essentially one preferably implemented as a start bit Start frequency 35 and the serial number stored in memory 15 16. It is expediently not encrypted.
  • the search signal is by everyone within the range of the signal transmission path 30 located remote controls 20 over their Transceivers 21 received.
  • Your microprocessors 24 on receipt of a search signal check whether the with the search signal transmitted serial number 16 with the im Memory 25 of the remote control 20 stored as a reference signal serving serial number 16.
  • the transferred Start bit 35 is used to synchronize the microprocessor 24 on the received search signal. Does the Microprocessor 24 a match between received Serial number and serial number present in memory 25 fixed, it directs the output of a response in the form of a contact signal on, step 104.
  • A serves as the contact signal short, simply structured signal, for example the group number the respective remote control 20 in bit-coded Shape. It is useful like the search signal unencrypted.
  • the microprocessor initiates the transmission of the contact signal 24 after the end of a characteristic of the actuating element 20, period determined by the group number the entrance of the search signal. It takes place in a time window with a predetermined length.
  • the transmission is dimensioned that a safe assignment of a contact signal to a Time window for both the remote control 20 and for the Base station 10 is possible.
  • Figure 3 illustrates the response behavior of the remote controls 20 to a search signal in a graphical representation.
  • the abscissa denotes an example in 8 time windows F0, ..., F7 divided time axis t, which corresponds to the input of the Search signals in the remote controls 20 begins.
  • the ordinate gives the group number 28 of the respective remote control 20 on.
  • a base station 10 has eight group numbers 0 to 7 assigned.
  • One remote control each will be present with group numbers 0 or 2 and 3 remote controls with group number 7. They all respond to the search signal by sending out a contact signal according to step 104.
  • the time of sending the Contact signals i.e. the serial number of the associated Time window, the group number of the respective remote control.
  • the remote control sends with group number 2 your contact signal after the waiting time T2 in the time window F2 off, the remote controls with group number 6 their after the waiting time T6 in the time window F6.
  • the Transceiver 11 of the base station 10 go as a result two offset, appearing in windows F2 and F6 Contact signals that immediately indicate which by remote controls identifying their group numbers 20 within the range of the signal transmission path 30 are located.
  • the microprocessor 13 By checking whether and in which time windows F0 to F7 contact signals are received, the microprocessor 13 the remote controls 20 present, step 106.
  • Present Remote controls 20 are by corresponding entries noted in memory 15. Will not be present remote control 20 determined, an abort signal is issued, step 108, with the the recognition attempt is ended.
  • the selected remote control 20 subjects the base station 10 of an assignment correctness check. It is done in the way the well-known Challenge / Response procedure.
  • the base station 10 sends a random number generated for this purpose as a challenge to the remote control 20, step 130.
  • the microprocessor 13 forms the microprocessor 13 according to a predetermined Algorithm from the device code stored in directory 18 28 of the relevant remote control 20, the cryptographic Key code 31 and the random number a target response signal.
  • the challenge signal sent to the remote control 20 is meanwhile by their transmitting / receiving device 21 received and transferred to the microprocessor 24. that directs from the received challenge signal to the same
  • Its microprocessor 13 compares Received the returned response signal with the previously determined Target response signal and enters if there is a match Release signal off, a blocking signal if they do not match. A blocking signal is also issued in particular if the device code 27 contained in the response signal is one, after loss or theft, locked remote control 20 listened.
  • he remote control 20 is a random number Challenge signal, step 134, it also generates from the random number by linking to the cryptic Key code 31 is a target response signal. The same way meanwhile, the remote control 20 moves with the sent one Challenge signal. The resulting encrypted signal sends them back to bass station 10, step 136.
  • the microprocessor 13 compares the received response signal with the previously determined target response signal and outputs a release signal if it matches, if it does not match a lock signal.
  • the device can be interpreted by the microprocessor 13 the transmission of a singulation signal, step 120. It is received by the remote controls 20 and sent to their respective Microprocessors 24 forwarded.
  • the separation signal causes those to send a contact signal in a randomly chosen, not with the group number 28 linked time slots.
  • the microprocessors 24 of the Remote controls 20 cause accordingly after receiving a Separation signals each the random selection of a time window, step 122. For this, link for example the device code 27 present in the memory 25 with one generated by the microprocessor or previously by the Base station 10 sent random number. For that accidentally selected time slot he then prepares the return of the Contact signal.
  • the microprocessor 13 of the base station 10 awaits in the meantime the receipt of the first contact signal, step 124. As soon as he noticed the receipt of the first contact signal has, it does not take any further incoming contact signals more on. At the same time, he causes a control signal to be issued, Step 126, which is the sending of further prepared Contact signals through the remote controls 20 in later Time slots lock. Those prevented from broadcasting Remote controls 20 participate in the subsequent communication no longer part. Then the microprocessor 13 again sending an identification signal, Step 114, to those still involved in the communication Remote controls 20. Those in turn respond by sending them back your device code, step 116, which is the base station side Microprocessor 13 in turn on clear interpretability evaluates.
  • the microprocessor moves 13 with the implementation of the correctness check continue according to step 130. Results from the examination in step 118 no clear interpretability, repeated the microprocessor 13 as long as steps 114 to 126, until the check in step 128 is a clearly identifiable one Device code results.
  • the microprocessor 13 when running through those defined by steps 114 to 126 Loop determines that in response to an identification signal no response contact signal is received, it breaks the association communication ab, step 138, and / or causes others appropriate follow-up.

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  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
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Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Verfahren wie es in der Deutschen Patentanmeldung DE 197 43 101 A1 beschrieben ist. Danach erfolgt die Zuordnung einer Fernbedienung zu einer in einem Kraftfahrzeug angeordneten Basisstation, indem letztere ein Suchsignal absetzt, worauf im Reichweitenbereich des Suchsignales befindliche Fernbedienungen durch Rücksenden eines Kontaktsignales zu für die Fernbedienungen charakteristischen Zeitpunkten antworten. Durch Auswertung der Eingangszeitpunkte der Kontaktsignalrückmeldungen ermittelt die Basisstation die anwesenden Fernbedienungen. Eine davon wählt sie aus, um mit ihr eine Challenge/Response-Verifikation durchzuführen. Weil die Information über die anwesenden Fernbedienungen nicht im Kontaktsignal, sondern im Zeitpunkt seiner Rücksendung enthalten ist, kann das Kontaktsignal einfach aufgebaut sein und die gesamte Erkennung dadurch sehr schnell erfolgen. Bestimmt wird die Erkennungsgeschwindigkeit nur durch die Zahl der zur Verfügung gestellten Zeitfenster für die einzelnen Fernbedienungen. Soll einer Basisstation allerdings eine sehr große Zahl von Fernbedienungen zugeordnet werden, verliert das Verfahren den Vorteil seiner Schnelligkeit.The invention is based on a method as in the German patent application DE 197 43 101 A1 is described. Then a remote control is assigned to an in a motor vehicle arranged base station by the latter sends a search signal, whereupon in the range of the Remote controls located by return signals a contact signal to those characteristic of the remote controls Answer times. By evaluating the entry times of the contact signal feedback determines the Base station the remote controls present. One of those selects her to do a challenge / response verification with her perform. Because the information about the remote controls present are not in the contact signal, but contained in the time of its return, the contact signal be simple and the entire detection thereby done very quickly. The detection speed is determined only by the number of provided Time window for the individual remote controls. Should a base station, however, a very large number of remote controls assigned, the procedure loses the Advantage of its speed.

Aus der US 5 266 925 A ist ein elektronisches Identifikationssystem bekannt. Eine Abfrageeinheit soll Informationen eines elektronischen Etiketts erfassen. Befinden sich jedoch mehrere elektronische Etiketten in dem Abfragebereich, soll eine Kommunikation nur mit einem der elektronischen Etiketten durchgeführt werden. Hierzu sendet die Abfrageeinheit eine Adresse. Die sich in Reichweite befindenden elektronischen Etiketten empfangen die Adresse und senden ein Antwortsignal, wenn ihre spezifische Identifikationsnummer größer ist als die gesendete Adresse. Antworten mehrere elektronische Etiketten gleichzeitig, sendet die Abfrageeinheit eine inkrementierte Adresse so lange, bis nur noch ein elektronisches Etikett antwortet. Die elektronischen Etiketten können ihre Antwortsignale in für sie charakteristischen Zeitfenstern senden, die als weiteres Unterscheidungskriterium dienen. Kommt es innerhalb eines Zeitfensters zu Kollisionen, muss das oben beschriebene Vereinzelungsverfahren durchgeführt werden.An electronic identification system is known from US Pat. No. 5,266,925. A Interrogation unit is intended to capture information from an electronic label. Are located however, multiple electronic labels in the query area are intended to communicate only with one of the electronic labels. For this the Query unit an address. The electronic ones in range Labels receive the address and send a response signal when their specific Identification number is greater than the sent address. Answer several electronic labels simultaneously, the interrogator sends an incremented Address until only an electronic label responds. The electronic Labels can send their response signals in time windows that are characteristic of them, which serve as a further distinguishing criterion. It happens within a time window for collisions, the separation procedure described above must be carried out become.

Es ist Aufgabe der Erfindung, ein Verfahren sowie eine zu seiner Durchführung geeignete Vorrichtung anzugeben, welche die Zuordnung einer großen Zahl von Fernbedienungen zu einer Basisstation gestatten und die Zuordnung dabei schnell durchführen.It is an object of the invention to provide a method and a method specify suitable device for its implementation, which the assignment of a large number of remote controls to one Allow base station and assign quickly carry out.

Die Aufgabe wird gelöst durch ein Verfahren mit den Merkmalen des Hauptanspruchs sowie zu dessen Durchführung ausgebildete Vorrichtungen gemäß den Unteransprüchen. Das erfindungsgemäße Verfahren erlaubt, indem einzelnen Zeitschlitzen mehrere Fernbedienungen zugeordnet sind, die Zuordnung einer großen Zahl von Fernbedienungen zu einer Basisstation bei unverändert hoher Zuordnungserkennungsgeschwindigkeit. Die Zahl der Zeitschlitze kann damit klein, die Zuordnungserkennungsgeschwindigkeit hoch gehalten werden. Zur Unterscheidung mehrerer im gleichen Zeitschlitz anwortender Fernbedienungen dient vorteilhaft ein zusätzliches Steuersignal, mit dem die Basisstation die Fernbedienungen dazu veranlaßt, ihre Gerätecodes auszusenden. Als Erkennungsinformation nutzt die Basisstation besonders vorteilhaft die Verständlichkeit der zurückgesandten Gerätecodes. Zur Auswahl einer bestimmten Fernbedienung werden die Fernbedienungen zur Abgabe zufällig gesetzter Kontaktsignale angeregt, wobei die zuerst eindeutig antwortende Fernbedienung ausgewählt wird. Dadurch erfolgt die eindeutige Erkennung einer Fernbedienung auch dann mit wenigen Schritten und entsprechend schnell, wenn sich mehrere einem gleichen Zeitschlitz zugeordnete Fernbedienungen in der Reichweite der Basisstation befinden. The problem is solved by a method with the features of the main claim and trained to carry it out Devices according to the subclaims. The invention Procedure allowed by individual time slots several remote controls are assigned, the assignment of one large number of remote controls to a base station unchanged high allocation recognition speed. The The number of timeslots can thus be small, the allocation recognition speed be held high. For differentiation several remote controls responding in the same time slot advantageously serves an additional control signal with which the base station causes the remote controls to control Send device codes. Used as recognition information the base station particularly advantageous the intelligibility the returned device codes. To choose a specific one Remote control, the remote controls are random to hand over set contact signals excited, the first uniquely responding remote control is selected. Thereby the remote control is also clearly identified then with just a few steps and accordingly quickly if there are several remote controls assigned to the same time slot are within range of the base station.

Unter Bezugnahme auf die Zeichnung wird ein Ausführungsbeispiel der Erfindung nachfolgend näher erläutert.With reference to the drawing, an embodiment the invention explained in more detail below.

Es zeigen Figur 1 ein Blockdiagramm einer Zuordnungsanordnung, Figur 2 ein Flußdiagramm zur Veranschaulichung ihres Betriebes, Figur 3 das Prinzip der Zeitschlitzzuorndung, Figur 4 den Aufbau eines Suchsignales.FIG. 1 shows a block diagram of an assignment arrangement, Figure 2 is a flow chart to illustrate your Operation, Figure 3 shows the principle of time slot allocation, Figure 4 the structure of a search signal.

Beschreibungdescription

In Figur 1 bezeichnet die Bezugszahl 10 eine Basisstation, die Teil eines Gerätes oder eines Gegenstandes sein kann oder einem solchen fest zugeordnet ist. Beispielsweise kann die Basisstation Teil der Zugangskontrolleinrichtung eines Gebäudes oder eines Kraftfahrzeuges sein. Die Bezugszahl 20 bezeichnet eine im folgenden Fernbedienung genannte Betätigungseinrichtung, welche der Basisstation 10 funktionell über eine Signalübertragungsstrecke 30 berührungslos zugeordnet ist. Die Fernbedienung 20 kann beispielweise ein Transponder sein. Über nicht dargestellte Wirkverbindungen wirkt die Basisstation 10 auf die technische Einrichtung ein, deren Teil oder der sie zugeordnet ist.In Figure 1, reference numeral 10 denotes a base station, that can be part of a device or an object or is permanently assigned to one. For example the base station is part of the access control facility Building or a motor vehicle. The reference number 20 denotes an actuating device called remote control in the following, which of the base station 10 is functional Assigned contactlessly via a signal transmission path 30 is. The remote control 20 can be, for example Be a transponder. About active connections, not shown acts the base station 10 on the technical device one whose part or which it is assigned to.

Den Kern der Basisstation 10 bildet ein Mikroprozessor 13, welcher insbesondere die Ausgabe von Signalen durch die Basisstation 10 überwacht und veranlaßt und eingehende Signale auswertet. Er ist über eine Codier-/Decodiereinheit 12 mit einer Sende-/Empfangseinrichtung 11 zur Abgabe bzw. Entgegennahme von über die Signalübertragungsstrecke 30 berührungslos übertragenen Signalen verbunden. Die Codier/Decodiereinheit 12 dient dabei zur Ver-/Entschlüsselung der zwischen Mikroprozessor 13 und Sende-/Empfangseinrichtung 11 ausgetauschten Signale. Dem Mikroprozessor 13 ist ein Speicher 15 zugeordnet. Darin befinden sich eine Serienummer 16, ein Gerätecode 17, ein kryptischer Schlüsselcode 31 sowie ein Verzeichnis 18 mit den Gruppennummern sowie den den Gruppennummern zugeordneten Gerätcodes 27 der der Basisstation 10 zugeordneten Fernbedienungen 20. Der Gerätecode 17 bezeichnet dabei das zugehörige Gerät, d.h. die Basisstation 10 eindeutig. Er wird vom Hersteller der Basisstation vergeben und ist unveränderbar. Die Seriennummer 16 ist charakteristisch für einander zugeordnete Basisstationen 10 und Fernbedienungen 20. Die im Verzeichnis 18 eingetragenen Gruppennummern 28 unterscheiden die einer Basissation 10 zugeordneten Fernbedienungen 20 mit gleichen Seriennummern, der jeweils zugeordnete Gerätecode 27 dient in Verbindung mit dem kryptischen Schlüsselcode 31 zur Verifizierung einer zu der Gruppennummer gehörigen Fernbedienung 20. Äquivalent zur getrennten Abspeicherung von kryptischem Schlüsselcode 31 und Gerätecodes 27 können im Verzeichnis 18 auch direkt die bei der Verifizierung benuzten Verknüpfungen beider abgelegt sein. Im Verzeichnis 18 sind ferner die Gerätecodes 27 nicht mehr zugelassener Fernbedienungen 20 abgelegt, die etwa verloren oder gestohlen wurden. Die Seriennummern 16 werden vom Hersteller der technischen Einrichtung festgelegt, der die Basisstation 10 bzw. die Fernbedienungen 20 zugeordnet sind. Bei Verwendung der Anordnung in Kraftfahrzeugen etwa kann die Festlegung durch den Fahrzeughersteller erfolgen. Jener kann auch den kryptischen Schlüsselcode 31 festlegen, mittels dessen die Zugehörigkeit einer Fernbedienung 20 zur Basisstation 10 verifiziert wird.The core of the base station 10 is a microprocessor 13, which in particular the output of signals by the base station 10 monitors and initiates and incoming signals evaluates. It is connected via a coding / decoding unit 12 a transceiver 11 for delivery or receipt from contactless via the signal transmission path 30 transmitted signals connected. The coding / decoding unit 12 is used to encrypt / decrypt the between microprocessor 13 and transceiver 11 exchanged signals. The microprocessor 13 is a memory 15 assigned. There is a serial number in it 16, a device code 17, a cryptic key code 31 and a directory 18 with the group numbers and the Device codes assigned to group numbers 27 of the base station 10 assigned remote controls 20. The device code 17 denotes the associated device, i.e. the base station 10 clearly. It is assigned by the manufacturer of the base station and is unchangeable. Serial number 16 is characteristic for mutually assigned base stations 10 and Remote controls 20. The ones entered in directory 18 Group numbers 28 differentiate those assigned to a base station 10 Remote controls 20 with the same serial numbers, the respective assigned device code 27 is used in conjunction with the cryptic key code 31 to verify a remote control belonging to the group number 20. Equivalent for separate storage of cryptic key codes 31 and device codes 27 can also be entered directly in directory 18 the links used for the verification are stored his. In the directory 18 are also the device codes 27 no longer approved remote controls 20 filed were lost or stolen. The serial numbers 16 are determined by the manufacturer of the technical device, the base station 10 or the remote controls 20 assigned. When using the arrangement in motor vehicles For example, the determination by the vehicle manufacturer respectively. The latter can also use the cryptic key code 31 determine by means of which the affiliation of a remote control 20 to the base station 10 is verified.

Die Fernbedienung 20 verfügt über eine zur basisstationsseitigen Sende-/Empfangseinrichtung 11 korrespondierende Sende/Empfangseinrichtung 21 zum Empfang von von der Basisstadion 10 abgegebenen Signalen bzw. zur Abgabe von berührungslos übertragenen Signalen an die Basisstation 10. Analog zur Basisstation ist der Sende-/Empfangseinrichtung 21 eine Codier-/Decodiereinheit 22 zur Ent-/Verschlüsselung codierter Signale nachgeschaltet. Mit der Codier-/Decodiereinheit 22 verbunden ist ein Mikroprozessor 24, welcher insbesondere die Auswertung der über die Sende-/Empfangseinrichtung 21 eingehenden Signale vornimmt, abhängig von den Ergebnissen Folgemaßnahmen einleitet, und die Ausgabe von Ausgangssignalen überwacht. Dem Mikroprozessor 24 zugeordnet ist eine Speichereinheit 25. Sie beinhaltet einen Speicherplatz zur Ablage zur Seriennummer 16, einen Speicherplatz zur Ablage eines Gerätecodes 27, einen Speicherplatz zur Ablage einer Gruppennummer 28 sowie einen Speicherplatz zur Ablage eines kryptischen Schlüsselcodes 31. Die Bedeutung der Speicherinhalte entspricht jeweils der Bedeutung der gleichartigen Speicherinhalte im Speicher 15 der Basisstation 10. Die Seriennummer 16 ist ein für die aus Basisstation 10 und zugehörigen Betätigungselementen 20 bestehende Gesamtvorrichtung charakteristischer Code und identisch mit der im Speicher 15 der Basisstation 10 enthaltenen Seriennummer. Die Gruppennummer 28 dient zur Unterscheidung von dieselbe Seriennummer aufweisenden Fernbedienungen 20. Sie wird bei der Nutzung der Gesamtvorrichtung durch den Anwender festgelegt. Der Gerätecode 27 wird durch den Hersteller der Fernbedienung 20 vergeben und bezeichnet sie eindeutig. Der kryptische Schlüsselcode 31 ist identisch mit dem in der Basisstation 10 vorhandenen Schlüsselcode und dient zur Verifikation der Zugehörigkeit zu einer Basisstation 10. Er wird durch den Hersteller der der Basisstation 10 zugehörigen technischen Einrichtung festgelegt.The remote control 20 has one on the base station side Transceiver 11 corresponding transceiver 21 to receive from the base stadium 10 emitted signals or to emit contactless transmitted signals to the base station 10. Analogous to the base station the transceiver 21 is a coding / decoding unit 22 encoded for decryption / encryption Downstream signals. With the coding / decoding unit 22 a microprocessor 24 is connected, which in particular the evaluation of the via the transceiver 21 incoming signals, depending on the results Initiates follow-up action, and the output of output signals supervised. One is assigned to the microprocessor 24 Storage unit 25. It contains a storage space for Storage for serial number 16, a storage space for storage a device code 27, a storage space for storing a Group number 28 and a storage space for storing a cryptic key codes 31. The meaning of the memory contents corresponds to the meaning of the like Contents of memory in memory 15 of base station 10. The serial number 16 is one for the base station 10 and associated Actuators 20 existing overall device characteristic code and identical to that in memory 15 the base station 10 contained serial number. The group number 28 is used to distinguish the same serial number having remote controls 20. It will be in use the overall device set by the user. The device code 27 is made by the manufacturer of the remote control 20 assign and clearly identify them. The cryptic Key code 31 is identical to that in the base station 10 existing key code and is used to verify the Belonging to a base station 10. He is by the Manufacturer of the technical associated with the base station 10 Establishment set.

Zwischen Basisstation 10 und Fernbedienung 20 besteht eine Signalübertragungsstrecke 30 zur Übertragung berührungslos übertragbarer Signale zwischen der fernbedienungsseitigen Sende-/Empfangseinrichtung 21 und der basisstationsseitigen Sende-/Empfangseinrichtung 11. Von der basisstationsseitigen Sende-/Empfangseinrichtung 11 ausgehende Signale erreichen dabei gleichzeitig alle innerhalb ihrer Reichweite befindlichen Fernbedienungen 20. Als Signale werden zweckmäßig Infrarotsignale oder Hochfrequenzsignale verwendet.There is a between base station 10 and remote control 20 Signal transmission path 30 for contactless transmission transferable signals between the remote control side Transceiver 21 and the base station side Transceiver 11. From the base station side Transceiver 11 reach outgoing signals all those within their reach at the same time Remote controls 20. Infrared signals are expedient as signals or high frequency signals used.

Einer Basisstation 10 können mehrere Fernbedienungen 20 zugeordnet sein. Alle zugeordneten Fernbedienungen 20 und die Basisstation 10 selbst verfügen in ihren Speichern 15, 25 über eine identische Seriennummer 16 und verwenden bei der Verifizierung einen identischen kryptischen Schlüsselcode 31. Die einzelnen Fernbedienungen 20 unterscheiden sich durch ihre Gruppennummern. Sie sind in der Regel einfach vergeben, so daß eine Fernbedienung durch die Gruppennummer 28 eindeutig bezeichnet ist. Bestimmte Gruppennummern können darüberhinaus gleichzeitig mehreren Fernbedienungen 20 zugeordnet sein. Solche mit derselben Gruppennummer 28 versehenen Fernbedienungen 20 unterscheiden sich durch ihren Gerätecode 27.A plurality of remote controls 20 can be assigned to a base station 10 his. All assigned remote controls 20 and the Base station 10 itself has 15, 25 in its memories have an identical serial number 16 and use the Verification of an identical cryptic key code 31. The individual remote controls 20 differ by their group numbers. They are usually simple assigned so that a remote control by the group number 28 is clearly identified. Certain group numbers can moreover, simultaneously assigned to several remote controls 20 his. Those with the same group number 28 Remote controls 20 differ in their device code 27th

Anhand der Figuren 2 und 3 wird nachfolgend die Funktionsweise der in Figur 1 wiedergegebenen Vorrichtung erläutert. Den Ablaufschritten in Figur 2 ist dabei jeweils ein Buchstabe B bzw. F vorangestellt ist, an dem ersichtlich ist, ob der zugehörige Ablaufschritt in der Basisstation 10: B oder in der Fernbedienung 20: F stattfindet.The mode of operation is described below with reference to FIGS. 2 and 3 the device shown in Figure 1 explained. The process steps in FIG. 2 are each a letter B or F is prefixed, which shows whether the associated process step in the base station 10: B or in the remote control 20: F takes place.

Der Zuordnungserkennungsprozeß wird - üblicherweise - durch die Betätigung eines nicht dargestellten mechanischen, elektrischen oder elektrooptischen Auslösemechanismus durch einen Eenutzer augelöst, Schritt 100. Bei Anwendung in Verbindung mit einem Kraftfahrzeug kann der Auslösemechanismus zum Beispiel im Betätigen des Türgriffes bestehen. Aufgrund eines nach dem Auslösen abgegebenen Signales leitet der Mikroprozessor 13 der Basisstation 10 die Abgabe eines Suchsignales durch die Sende-/Empfangseinrichtung 11 ein, Schritt 102. Das Suchsignal beinhaltet, wie in Figur 4 angedeutet, im wesentlichen eine vorzugsweise als Startbit realisierte Startfrequenz 35 sowie die im Speicher 15 abgelegte Seriennummer 16. Zweckmäßig ist es unverschlüsselt. Das Suchsignal wird von allen innerhalb der Reichweite der Signalübertragungsstrecke 30 befindlichen Fernbedienungen 20 über deren Sende-/Empfangseinrichtungen 21 empfangen. Ihre Mikroprozessoren 24 überprüfen bei Erhalt eines Suchsignales, ob die mit dem Suchsignal übertragene Seriennummer 16 mit der im Speicher 25 der Fernbedienung 20 abgelegten, als Referenzsignal dienenden Seriennummer 16, übereinstimmt. Das mitübertragene Startbit 35 dient dabei zur Synchronisation des Mikroprozessors 24 auf das empfangene Suchsignal. Stellt der Mikroprozessor 24 eine Übereinstimmung zwischen empfangener Seriennummer und im Speicher 25 vorhandener Seriennummer fest, leitet er die Ausgabe einer Antwort in Form eines Kontaktsignales ein, Schritt 104. Als Kontaktsignal dient ein kurzes, einfach aufgebautes Signal, beispielsweise die Gruppennummer der jeweiligen Fernbedienung 20 in bit-codierter Form. Es ist zweckmäßig wie das Suchsignal unverschlüsselt. Die Aussendung des kontakt signales veranlaßt der Mikroprozessor 24 nach Ablauf einer für das Betätigungselement 20 charakteristischen, durch die Gruppennummer bestimmten Zeitspanne ab dem Eingang des Suchsignales. Sie erfolgt in einem Zeitfenster mit vorbestimmter Länge. Die Aussendung ist so bemessen, daß ein sicheres Zuordnen eines Kontaktsignales zu einem Zeitfenster sowohl für die Fernbedienung 20 wie für die Basisstation 10 möglich ist.The mapping recognition process is - usually - through the actuation of a mechanical, electrical, not shown or electro-optical trigger mechanism by a A user resolved, step 100. When used in conjunction with a motor vehicle, the trigger mechanism for Example of operating the door handle. Because of a the microprocessor conducts after the released signal has been triggered 13 of the base station 10 the delivery of a search signal through the transceiver 11, step 102. As indicated in FIG. 4, the search signal contains essentially one preferably implemented as a start bit Start frequency 35 and the serial number stored in memory 15 16. It is expediently not encrypted. The search signal is by everyone within the range of the signal transmission path 30 located remote controls 20 over their Transceivers 21 received. Your microprocessors 24 on receipt of a search signal, check whether the with the search signal transmitted serial number 16 with the im Memory 25 of the remote control 20 stored as a reference signal serving serial number 16. The transferred Start bit 35 is used to synchronize the microprocessor 24 on the received search signal. Does the Microprocessor 24 a match between received Serial number and serial number present in memory 25 fixed, it directs the output of a response in the form of a contact signal on, step 104. A serves as the contact signal short, simply structured signal, for example the group number the respective remote control 20 in bit-coded Shape. It is useful like the search signal unencrypted. The microprocessor initiates the transmission of the contact signal 24 after the end of a characteristic of the actuating element 20, period determined by the group number the entrance of the search signal. It takes place in a time window with a predetermined length. The transmission is dimensioned that a safe assignment of a contact signal to a Time window for both the remote control 20 and for the Base station 10 is possible.

Figur 3 veranschaulicht das Antwortverhalten der Fernbedienungen 20 auf ein Suchsignal in graphischer Darstellung. Es bezeichnet die Abszisse eine beispielhaft in 8 Zeitfenster F0, ..., F7 unterteilte Zeitachse t, die mit dem Eingang des Suchsignales in den Fernbedienungen 20 beginnt. Die Ordinate gibt die Gruppennummer 28 der jeweiligen Fernbedienung 20 an. In Figur 3 sind einer Basisstation 10 acht Gruppennummern 0 bis 7 zugeordnet. Anwesend seien je eine Fernbedienung mit den Gruppennummern 0 bzw. 2 sowie 3 Fernbedienungen mit der Gruppennummer 7. Sie antworten alle auf das Suchsignal durch Aussenden eines Kontaktsignales gemäß Schritt 104. Im Beispiel entspreche der Zeitpunkt der Aussendung des Kontaktsignales, d.h. die Ordnungsnummer des zugehörigen Zeitfensters, der Gruppennummer der jeweiligen Fernbedienung. Daher sendet die Fernbedienung mit der Gruppennummer 2 ihr Kontaktsignal nach Ablauf der Wartezeit T2 im Zeitfenster F2 aus, die Fernbedienungen mit der Gruppennummer 6 ihre nach Ablauf der Wartezeit T6 im Zeitfenster F6. An der Sende-/Empfangseinrichtung 11 der Basisstation 10 gehen infolge davon zwei versetzte, in den Fenstern F2 und F6 erscheinende Kontaktsignale ein, die unmittelbar angeben, welche durch ihre Gruppennummern bezeichnenden Fernbedienungen 20 sich innerhalb der Reichweite der Signalübertragungsstrecke 30 befinden.Figure 3 illustrates the response behavior of the remote controls 20 to a search signal in a graphical representation. It the abscissa denotes an example in 8 time windows F0, ..., F7 divided time axis t, which corresponds to the input of the Search signals in the remote controls 20 begins. The ordinate gives the group number 28 of the respective remote control 20 on. In FIG. 3, a base station 10 has eight group numbers 0 to 7 assigned. One remote control each will be present with group numbers 0 or 2 and 3 remote controls with group number 7. They all respond to the search signal by sending out a contact signal according to step 104. In the example, the time of sending the Contact signals, i.e. the serial number of the associated Time window, the group number of the respective remote control. Therefore, the remote control sends with group number 2 your contact signal after the waiting time T2 in the time window F2 off, the remote controls with group number 6 their after the waiting time T6 in the time window F6. At the Transceiver 11 of the base station 10 go as a result two offset, appearing in windows F2 and F6 Contact signals that immediately indicate which by remote controls identifying their group numbers 20 within the range of the signal transmission path 30 are located.

Durch Prüfen, ob und in welchen Zeitfenstern F0 bis F7 Kontaktsignale eingegangen sind, stellt der Mikroprozessor 13 die anwesenden Fernbedienungen 20 fest, Schritt 106. Anwesende Fernbedienungen 20 werden durch entsprechende Einträge im Speicher 15 vermerkt. Wird keine anwesende Fernbedienung 20 ermittelt, ergeht ein Abbruchsignal, Schritt 108, mit dem der Erkennungsversuch beendet wird.By checking whether and in which time windows F0 to F7 contact signals are received, the microprocessor 13 the remote controls 20 present, step 106. Present Remote controls 20 are by corresponding entries noted in memory 15. Will not be present remote control 20 determined, an abort signal is issued, step 108, with the the recognition attempt is ended.

Nach Ermitteln der anwesendenden Fernbedienungen 20 trifft der Mikroprozessor 13 eine Auswahl, mit welcher davon anschließend eine Verifikation der Zuordnung erfolgen soll, Schritt 112. Dabei prüft er zunächst, ob durch nur einmal vergebene Gruppennummern eindeutig bezeichnete Fernbedienungen 20 anwesend sind. Ist das der Fall, wählt er daraus eine für die nachfolgende Verifikationskommunikation. Grundlage für die Auswahl kann dabei beispielsweise eine Rangabstufung der Fernbedienungen 20 sein, aufgrund der den Fernbedienungen etwa unterschiedliche Funktionsumfänge eingeräumt sind:After determining the remote controls present 20 hits the microprocessor 13 makes a selection with which of them subsequently the assignment is to be verified, Step 112. He first checks whether by only once assigned group numbers clearly identified remote controls 20 are present. If so, he chooses one for the subsequent verification communication. basis A ranking can be used for the selection, for example of the remote controls 20 due to the remote controls there are different functions:

Die ausgewählte Fernbedienung 20 unterzieht die Basisstation 10 einer Zuordnungsrichtigkeitsprüfung. Sie erfolgt im Wege des bekannten Challenge/Response-Verfahrens. Die Basisstation 10 sendet hierbei eine zu diesem Zweck erzeugten Zufallszahl als Challenge an die Fernbedienung 20, Schritt 130. Zugleich bildet der Mikroprozessor 13 nach einem vorgegebenen Algorithmus aus dem im Verzeichnis 18 abgelegten Gerätecode 28 der betreffenden Fernbedienung 20, dem kryptographischen Schlüsselcode 31, sowie der Zufallszahl ein Soll-Response-Signal. Das an die Fernbedienung 20 abgesandte Challenge-Signal wird unterdessen von deren Sende-/Empfangseinrichtung 21 empfangen und an den Mikroprozessor 24 übergeben. Jener leitet aus dem empfangenen Challenge-Signal auf dieselbe Weise wie der Mikroprozessor 13 der Basisstation 10 ein Response-Signal ab und sendet es an die Basisstation 10 zurück, Schritt 132. Deren Mikroprozessor 13 vergleicht nach Erhalt das rückgesandte Response-Signal mit dem zuvor ermittelten Soll-Response-Signal und gibt bei Übereinstimmung ein Freigabesignal aus, bei Nichtübereinstimmung ein Sperrsignal. Ein Sperrsignal ergeht dabei insbesondere auch dann, wenn der in dem Response-Signal enthaltene Gerätecode 27 einer, etwa nach Verlust oder Diebstahl, gesperrten Fernbedienung 20 zugehört.The selected remote control 20 subjects the base station 10 of an assignment correctness check. It is done in the way the well-known Challenge / Response procedure. The base station 10 sends a random number generated for this purpose as a challenge to the remote control 20, step 130. At the same time forms the microprocessor 13 according to a predetermined Algorithm from the device code stored in directory 18 28 of the relevant remote control 20, the cryptographic Key code 31 and the random number a target response signal. The challenge signal sent to the remote control 20 is meanwhile by their transmitting / receiving device 21 received and transferred to the microprocessor 24. that directs from the received challenge signal to the same Like the microprocessor 13 of the base station 10 a response signal and sends it back to the base station 10, Step 132. Its microprocessor 13 compares Received the returned response signal with the previously determined Target response signal and enters if there is a match Release signal off, a blocking signal if they do not match. A blocking signal is also issued in particular if the device code 27 contained in the response signal is one, after loss or theft, locked remote control 20 listened.

Ergab die Auswertung der anwesenden Fernbedienungen 20 in Schritt 112, daß nur Fernbedienungen 20 mit mehrfach vergebenen Gruppennummern 28 anwesend sind, bewirkt der Mikroprozessor 13 über die Sende-/Empfangseinrichtung 11 die Ausgabe eines Identifizierungssignales, Schritt 114. Es veranlaßt die Mikroprozessoren 24 der anwesenden Fernbedienungen 20, durch Rücksenden der in den Speichern 25 vorhandenen Gerätecodes 27 zu antworten. Alle anwesenden Fernbedienungen 20 antworten dabei gleichzeitig, Schritt 116. Die auf die Aussendung eines Identifizierungssignales zurückgesandten Gerätecodes prüft der Mikroprozessor 13 der Basisstation 10 sodann daraufhin, ob das insgesamt empfangene Signal der Form nach einem Gerätecode entspricht und mit einem der im Speicher 15 abgelegten Gerätecodes indentifizierbar ist, Schritt 118. Trifft das zu, ist nur - noch - eine einzelne Fernbedienung 20 mit mehrfach vergebener Gruppennummer anwesend. Der Mikroprozessor 13 fährt dann mit der Durchführung einer vereinfachten Verifikationskommunikation fort. Dazu sendet er der Fernbedienung 20 ein aus einer Zufallszahl bestehendes Challenge-Signal, Schritt 134, zugleich erzeugt er aus der Zufallszahl durch Verknüpfung mit dem kryptischen Schlüsselcode 31 ein Soll-Response-Signal. Auf dieselbe Weise verfährt die Fernbedienung 20 währenddessen mit dem zugesandten Challenge-Signal. Das entstandene verschlüsselte Signal sendet sie an die Bassisstation 10 zurück, Schritt 136. Deren Mikroprozessor 13 vergleicht das rückerhaltene Response-Signal mit dem zuvor ermittelten Soll-Response-Signal und gibt bei Übereinstimmung ein Freigabesignal aus, bei Nichtübereinstimmung ein Sperrsignal.Results in the evaluation of the remote controls present 20 in Step 112 that only remote controls 20 with multiple assignments Group numbers 28 are present, causes the microprocessor 13 via the transceiver 11 the output an identification signal, step 114. It causes the microprocessors 24 of the remote controls 20 present, by returning the device codes available in the memories 25 27 to answer. All remote controls present 20 answer at the same time, step 116 Transmission of an identification signal returned device code the microprocessor 13 then checks the base station 10 then whether the total received signal of the form according to a device code and with one of those in memory 15 stored device codes is identifiable, step 118. If that is the case, it is only a single remote control 20 present with multiple group numbers. The microprocessor 13 then continues to perform one simplified verification communication. To do this sends he remote control 20 is a random number Challenge signal, step 134, it also generates from the random number by linking to the cryptic Key code 31 is a target response signal. The same way meanwhile, the remote control 20 moves with the sent one Challenge signal. The resulting encrypted signal sends them back to bass station 10, step 136. The microprocessor 13 compares the received response signal with the previously determined target response signal and outputs a release signal if it matches, if it does not match a lock signal.

Ergibt die Prüfung des insgesamt empfangenen Signales im Schritt 118, daß es nicht als eindeutig identifizierbarer Gerätecode interpretierbar ist, veranlaßt der Mikroprozessor 13 die Aussendung eines Vereinzelungssignales, Schritt 120. Es wird von den Fernbedienungen 20 empfangen und an ihre jeweiligen Mikroprozessoren 24 weitergeleitet. Das Vereinzelungssignal veranlaßt jene zur Absetzung eines Kontaktsignales in einem zufällig gewählten, nicht mit der Gruppennummer 28 verknüpften Zeitfenster. Die Mikroprozessoren 24 der Fernbedienungen 20 veranlassen entsprechend nach Erhalt eines Vereinzelungssignales jeweils die zufallsgesteuerte Auswahl eines Zeitfensters, Schritt 122. Hierfür verknüpfen sie beispielsweise den im Speicher 25 vorhandenen Gerätecode 27 mit einer vom Mikroprozessor erzeugten oder zuvor von der Basisstation 10 zugesandten Zufallszahl. Für das zufällig gewählte Zeitfenster bereitet er sodann die Rücksendung des Kontaktsignales vor.Checks the total received signal in the Step 118 that it is not clearly identifiable The device can be interpreted by the microprocessor 13 the transmission of a singulation signal, step 120. It is received by the remote controls 20 and sent to their respective Microprocessors 24 forwarded. The separation signal causes those to send a contact signal in a randomly chosen, not with the group number 28 linked time slots. The microprocessors 24 of the Remote controls 20 cause accordingly after receiving a Separation signals each the random selection of a time window, step 122. For this, link for example the device code 27 present in the memory 25 with one generated by the microprocessor or previously by the Base station 10 sent random number. For that accidentally selected time slot he then prepares the return of the Contact signal.

Der Mikroprozessor 13 der Basisstation 10 erwartet währenddessen den Eingang des ersten Kontaktsignales, Schritt 124. Sobald er den Eingang des ersten Kontaktsignales festgestellt hat, nimmt er weitere eingehende Kontaktsignale nicht mehr an. Zugleich veranlaßt er die Absetzung eines Steuersignales, Schritt 126, welches die Aussendung weiterer vorbereiteter Kontaktsignale durch die Fernbedienungen 20 in späteren Zeitfenstern sperrt. Die an der Aussendung gehinderten Fernbedienungen 20 nehmen an der nachfolgenden Kommunikation nicht mehr teil. Daraufhin veranlaßt der Mikroprozessor 13 erneut die Aussendung eines Identifizierungssignales, Schritt 114, an die noch an der Kommunikation beteiligten Fernbedienungen 20. Jene antworten wiederum durch Rücksendung ihres Gerätecodes, Schritt 116, welche der basisstationsseitige Mikroprozessor 13 wiederum auf eindeutige Interpretierbarkeit hin auswertet. Stellt er fest, daß das auf die Aussendung des Vereinzelungssignales erhaltene Antwortsignal eindeutig interpretierbar und einem im Speicher 15 abgelegten Gerätecode 17 zuordbar ist, fährt der Mikroprozessor 13 mit der Durchführung der Zuordnungsrichtigkeitsprüfung gemäß Schritt 130 fort. Ergibt sich bei der Prüfung im Schritt 118 keine eindeutige Interpretierbarkeit, wiederholt der Mikroprozessor 13 die Schritte 114 bis 126 so lange, bis die Prüfung im Schritt 128 einen eindeutig indentifizierbaren Gerätecode ergibt. Stellt der Mikroprozessor 13 beim Durchlauf der durch die Schritte 114 bis 126 definierten Schleife fest, daß auf ein Identifizierrungssignal hin kein Anwortkontaktsignal eingeht, bricht er die Zuordnungskommunikation ab, Schritt 138, und/oder veranlaßt weitere geeignete Folgemaßnahmen. The microprocessor 13 of the base station 10 awaits in the meantime the receipt of the first contact signal, step 124. As soon as he noticed the receipt of the first contact signal has, it does not take any further incoming contact signals more on. At the same time, he causes a control signal to be issued, Step 126, which is the sending of further prepared Contact signals through the remote controls 20 in later Time slots lock. Those prevented from broadcasting Remote controls 20 participate in the subsequent communication no longer part. Then the microprocessor 13 again sending an identification signal, Step 114, to those still involved in the communication Remote controls 20. Those in turn respond by sending them back your device code, step 116, which is the base station side Microprocessor 13 in turn on clear interpretability evaluates. Does he find that on the response signal received the transmission of the singulation signal clearly interpretable and one in memory 15 stored device code 17 is assignable, the microprocessor moves 13 with the implementation of the correctness check continue according to step 130. Results from the examination in step 118 no clear interpretability, repeated the microprocessor 13 as long as steps 114 to 126, until the check in step 128 is a clearly identifiable one Device code results. The microprocessor 13 when running through those defined by steps 114 to 126 Loop determines that in response to an identification signal no response contact signal is received, it breaks the association communication ab, step 138, and / or causes others appropriate follow-up.

Unter Beibehaltung des grundlegenden Gedankens, bei einer auf dem Zeitfensterprinzip beruhenden Zuordnung eine Mehrfachbelegung einzelner Zeitfenster zuzulassen und eine Identifizierung einer zu einem mehrfach belegten Zeitfenster gehörenden Fernbedienung durch Auswertung eines gleichzeitig von allen anwesenden Fernbedienungen abgegebenen Signales auf Verständlichkeit hin zu ermöglichen, lassen sich das vorgeschriebene Verfahren beziehungsweise die vorgeschriebene Vorrichtung weiter ausgestalten und abwandeln. Beispielsweise gilt das für die Struktur der Basisstationen der Fernbedienungen oder für die Zahl und Reihenfolge der Verfahrensschritte. Nach Ermitteln der anwesenden Fernbedienungen kann beispielsweise vorgesehen sein, alle als anwesend erkannten zu verifizieren.Maintaining the basic idea, with one multiple allocation based on the time window principle Allow individual time slots and identification one belonging to a multi-occupied time window Remote control by evaluating one at the same time from all remote controls present to make it understandable, prescribed procedure or the prescribed Further design and modify the device. For example this applies to the structure of the base stations of the remote controls or for the number and sequence of process steps. After determining the remote controls present can be provided, for example, all recognized as present to verify.

Claims (11)

  1. Method for assigning a remote control (20) to a base station (10), the base station outputting a search signal, the remote control receiving the search signal, comparing it with a reference signal, and, when there is correspondence, outputting a contact signal after the expiry of a time period starting from the input of the search signal, said time period being characteristic of the remote control (20) and being determined by a group number (28),
    characterized by the further steps:
    an identification signal (114) is output by the base station (10) after a contact signal (106) is received,
    the identification signal is received by the remote control (20),
    a device code (27) which designates the remote control in a uniquely defined way is transmitted back (116) by the remote control (20), remote controls (20) which are provided with the same group number (28) differing in their device code (27).
  2. Base station (10) for carrying out the method according to Claim 1, characterized by a transceiver device (11) which
    is designed to output a search signal and an identification signal, and
    to receive contact signals and device codes (27) from a remote control (20),
    and which also has means (13) for bringing about/evaluating the signals which are to be output/are received via the transceiver device (11).
  3. Base station (10) according to Claim 2, having a transceiver device (11) configured in such a way that when contact signals associated with specific remote controls (20) are input, it outputs an identification signal which causes all the remote controls (20) which receive the identification signal to transmit back device codes (17) which uniquely designate it in a uniquely defined way.
  4. Base station (10) according to Claim 2, having a microprocessor (13) configured in such a way that it checks (118) a device code signal, received from a remote control (20), for the possibility of uniquely defined interpretation.
  5. Base station (10) according to Claim 4, having a transceiver device (11) configured in such a way that it is also designed to output an isolation signal and outputs (120) an isolation signal if a device code signal cannot be interpreted in a uniquely defined fashion.
  6. Base station (10) according to Claim 5, having a transceiver device (11) configured in such a way that when the first contact signal is input, it outputs (126) a blocking instruction in response to an isolation signal, said blocking instruction preventing the emission of subsequent contact signals by other remote controls (20).
  7. Base station (10) according to Claim 2, having a microprocessor (13) configured in such a way that, in order to identify an activation element (20), it evaluates received contact signals, at the time (T2, T6) when they are input, with respect to the emission of a search signal.
  8. Remote control (20) for carrying out the method according to Claim 1, characterized by a transceiver device (21)
    which is designed to receive search and identification signals, and
    to output contact signals and device code signals, the contact signal being output after the expiry of a time period starting from the input of the search signal, said time period being characteristic of the remote control (20) and being determined by a group number (28), and having a transceiver device (11) and which also has
    means (24) for evaluating/bringing about signals which are received/are to be output.
  9. Remote control (20) according to Claim 8, characterized in that when an identification signal is received, it outputs (116) a device code signal.
  10. Remote control (20) according to Claim 8, characterized in that it is also designed to receive isolation signals, and, when an isolation signal is received, it prepares (122) the outputting of a contact signal in a time window which is randomly selected.
  11. Device for assigning a remote control (20) to a base station (10), having
    a base station according to Claim 2 and
    a plurality of remote controls according to Claim 8, which can be identified by means of group numbers (28), characterized in that the device is configured in such a way that at least one group number (28) is simultaneously assigned to a plurality of remote controls (20).
EP98948731A 1997-08-08 1998-08-05 Method for operating a remote control, and remote control Expired - Lifetime EP1002177B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19734341 1997-08-08
DE19734341A DE19734341A1 (en) 1997-08-08 1997-08-08 Remote control and remote control method
PCT/DE1998/002253 WO1999008471A2 (en) 1997-08-08 1998-08-05 Method for operating a remote control, and remote control

Publications (2)

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EP1002177A2 EP1002177A2 (en) 2000-05-24
EP1002177B1 true EP1002177B1 (en) 2004-01-07

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EP98948731A Expired - Lifetime EP1002177B1 (en) 1997-08-08 1998-08-05 Method for operating a remote control, and remote control

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US (1) US6633227B1 (en)
EP (1) EP1002177B1 (en)
JP (1) JP2001513616A (en)
AU (1) AU732966B2 (en)
DE (2) DE19734341A1 (en)
ES (1) ES2214733T3 (en)
WO (1) WO1999008471A2 (en)

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Publication number Publication date
US6633227B1 (en) 2003-10-14
ES2214733T3 (en) 2004-09-16
DE19734341A1 (en) 1999-02-11
AU9529598A (en) 1999-03-01
DE59810558D1 (en) 2004-02-12
AU732966B2 (en) 2001-05-03
WO1999008471A3 (en) 1999-04-29
JP2001513616A (en) 2001-09-04
EP1002177A2 (en) 2000-05-24
WO1999008471A2 (en) 1999-02-18

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