EP0660286A1 - System zur Erkennung und Verwaltung von Kodes zum Zugriff auf mehrerer Diensten - Google Patents

System zur Erkennung und Verwaltung von Kodes zum Zugriff auf mehrerer Diensten Download PDF

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Publication number
EP0660286A1
EP0660286A1 EP94119988A EP94119988A EP0660286A1 EP 0660286 A1 EP0660286 A1 EP 0660286A1 EP 94119988 A EP94119988 A EP 94119988A EP 94119988 A EP94119988 A EP 94119988A EP 0660286 A1 EP0660286 A1 EP 0660286A1
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EP
European Patent Office
Prior art keywords
code
unit
receiving unit
multimode
signal
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.)
Withdrawn
Application number
EP94119988A
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English (en)
French (fr)
Inventor
Livio Carniato
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.)
PRASTEL Srl
Original Assignee
PRASTEL Srl
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Filing date
Publication date
Application filed by PRASTEL Srl filed Critical PRASTEL Srl
Publication of EP0660286A1 publication Critical patent/EP0660286A1/de
Withdrawn legal-status Critical Current

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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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link

Definitions

  • the present invention relates to a system for recognizing and managing codes for accessing multiple services.
  • the systems currently used to access a service include a transmitter which transmits a coded signal and is operatively associated with a receiver that is provided with a logic controller which activates the service if the received signal corresponds to the signal set on said receiver.
  • This method has limitations, especially as regards the possibility of controlling access to different services or to hierarchically differing services within the same installation.
  • a technical aim of the present invention is therefore to provide a system that obviates the above mentioned drawbacks and therefore allows to recognize and manage codes for accessing multiple services.
  • an object of the present invention is to provide a system in which the clearance codes of the logic unit assigned to service control can be programmed by acting on the transmission medium used in the recognition process, by operating from a remote station which is capable of interfacing with the receiver, and also by acting only on the logic unit, which is interfaced with a computer equipped with dedicated software.
  • a system for recognizing and managing codes for accessing multiple services which is characterized in that it comprises at least one transmitting unit and at least one receiving unit, said transmitting unit being adapted to generate a code and to send a signal, coded according to said code, by means of multimode transmission media, said receiving unit being adapted to receive said coded signal transmitted by said multimode media and to reconstruct the sequence of logic levels that constitute the code for access to one or more services, a control and decoding section being associated with said receiving unit and being adapted to process said logic level sequence, extract therefrom the specific code of the transmitting unit from which it originates, and send it to a storage logic unit in which the clearance code of the service is stored, a service control unit being connected to said control and decoding section.
  • the system comprises a plurality of transmitting units 1, each comprising a code generator 2, the output signal of which is sent to a transmitter 3.
  • the code generator 2 consists of a generator that produces a sequence of pulses of known length, with a duty cycle that can vary according to the logic level to be represented. Each transmitting unit 1 is characterized by a different code.
  • the reference numeral 4 designates a carrier generator, the output signal of which, together with the signal at the output of the code generator 2, is sent to a modulator 5 of the ON-OFF type, i.e. capable of producing a modulation which consists in the presence or absence of carrier at the output.
  • the signal at the output of the modulator 5 is sent to the transmitter 3, which is of the multimode type, that is to say, capable of processing the signal of the modulator so as to be able to send it by radio to a receiving unit 6, or adapted to process the signal that originates from the code generator 2 to transmit it to the receiving unit 6 by optical means, by means of a proximity effect, or by means of a capacitive effect.
  • the transmitter 3 which is of the multimode type, that is to say, capable of processing the signal of the modulator so as to be able to send it by radio to a receiving unit 6, or adapted to process the signal that originates from the code generator 2 to transmit it to the receiving unit 6 by optical means, by means of a proximity effect, or by means of a capacitive effect.
  • the transmitter can include an antenna, if the code is communicated by radio transmission by means of a modulated signal or by means of a proximity effect; a LED, if communication occurs optically; or an appropriately sized conductor, if communication occurs by using the capacitive effect.
  • the receiving unit 6 comprises a multimode receiver 7, which comprises an antenna for receiving the modulated signal transmitted by radio or by proximity effect, or it comprises a photodiode if communication occurs optically, or an appropriately sized conductor if communication occurs by means of the capacitive effect.
  • a multimode receiver 7 which comprises an antenna for receiving the modulated signal transmitted by radio or by proximity effect, or it comprises a photodiode if communication occurs optically, or an appropriately sized conductor if communication occurs by means of the capacitive effect.
  • the signal at the output of the receiver is transmitted to a comparator circuit 8.
  • a section 9 that filters the high-frequency component of the carrier.
  • the comparator 8 Starting from the received and optionally filtered signal, the comparator 8 reconstructs the sequence of logic levels that constitute the code. This sequence is transmitted to a control and decoding section 10 that processes it and extracts from it the specific code of the transmitting unit from which it originates.
  • a storage logic unit 11 is furthermore installed in each receiving unit 6 and is managed by the decoding section 10, programming by request the codes cleared to use the system.
  • the decoding section 10 drives, on the basis of the decoded information, one or more users by means of respective control units 12.
  • Said control units 12 consist of relay-equipped boards which are driven by the control and decoding section to close the contacts according to different functions depending on the selected configuration (standard, bistable, or time-controlled contact).
  • the logic units 11 contain the information required for the operation of the control logic of the receiving unit 6 and store the set of the codes that provide clearance for use of the system.
  • the receiving unit 6 is capable of controlling the programming and management of the logic unit 11 by switching from the "code recognition" mode to the "code programming" mode.
  • the procedure for programming a code to be included in the list of cleared codes uses the same transmission medium used during recognition.
  • Codes can be set directly by using transmitting units 1 and receiving units 6.
  • Management of the logic units 11 at a higher level uses programming units 13; the logic units can be connected to said programming units after being removed from the receiving unit 6.
  • the receiving unit can also be connected to a remote programming unit 15 by means of an interfacing device 14 which consists for example of a serial port that uses the RS-232 standard. In normal operating conditions, the receiving unit 6 is preset to operate in the "code recognition" mode.
  • the receiver 6 can be switched not only to the "code recognition” mode but also to the "code programming” mode (see figure 3) to receive and store the received codes in the logic unit 11.
  • a preliminary check is performed to determine whether the logic unit is write-protected. If this check yields a negative result 20, the validity of the code is checked. This can be done for example by checking whether the sequence of logic levels meets or fails the necessary timing requirements. If this check fails, the procedure is deactivated by request 21 or when a timeout period ends if a valid code 22 has not been entered in the meantime. If the validity requirements of the code are met 23, i.e. if a "valid code" is recognized, the logic controller 11 checks whether the code is already present among the cleared ones and if so 24 performs no further operations and prepares itself to receive other codes.
  • the receiving unit 6 is also capable of fully deleting the logic unit if it is not protected.
  • the proposed system in fact allows to couple a single code generator to different remote transmission media so as to allow a user provided with a single transmitter to access services whose receivers entail the use of different kinds of sensor.
  • Each receiver is provided with a control and storage unit that allows to manage a large number of different codes (not just one as occurs in conventional dip-switch systems).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Selective Calling Equipment (AREA)
EP94119988A 1993-12-22 1994-12-16 System zur Erkennung und Verwaltung von Kodes zum Zugriff auf mehrerer Diensten Withdrawn EP0660286A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT93BO000517A IT1264756B1 (it) 1993-12-22 1993-12-22 Sistema per il riconoscimento e la gestione di codici di accesso a piu' utenze
ITBO930517 1993-12-22

Publications (1)

Publication Number Publication Date
EP0660286A1 true EP0660286A1 (de) 1995-06-28

Family

ID=11339372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119988A Withdrawn EP0660286A1 (de) 1993-12-22 1994-12-16 System zur Erkennung und Verwaltung von Kodes zum Zugriff auf mehrerer Diensten

Country Status (2)

Country Link
EP (1) EP0660286A1 (de)
IT (1) IT1264756B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867848A1 (de) 1997-03-24 1998-09-30 Somfy Steuerungsvorrichtung für einen ferngesteuerten Aktuator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904993A (en) * 1986-05-16 1990-02-27 Alps Electric Co., Ltd. Remote control apparatus with selectable RF and optical signal transmission
US5148159A (en) * 1989-04-26 1992-09-15 Stanley Electronics Remote control system with teach/learn setting of identification code
DE4214821A1 (de) * 1991-05-08 1992-11-12 Caterpillar Mitsubishi Ltd Fernsteuerung
FR2685505A1 (fr) * 1991-12-19 1993-06-25 Texton Procede de programmation d'un agencement de telecommande d'un dispositif actionneur et agencement pour la mise en óoeuvre de ce procede.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904993A (en) * 1986-05-16 1990-02-27 Alps Electric Co., Ltd. Remote control apparatus with selectable RF and optical signal transmission
US5148159A (en) * 1989-04-26 1992-09-15 Stanley Electronics Remote control system with teach/learn setting of identification code
DE4214821A1 (de) * 1991-05-08 1992-11-12 Caterpillar Mitsubishi Ltd Fernsteuerung
FR2685505A1 (fr) * 1991-12-19 1993-06-25 Texton Procede de programmation d'un agencement de telecommande d'un dispositif actionneur et agencement pour la mise en óoeuvre de ce procede.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867848A1 (de) 1997-03-24 1998-09-30 Somfy Steuerungsvorrichtung für einen ferngesteuerten Aktuator

Also Published As

Publication number Publication date
IT1264756B1 (it) 1996-10-04
ITBO930517A1 (it) 1995-06-22
ITBO930517A0 (it) 1993-12-22

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