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WO1998031901A1 - Procede et dispositif de transmission d'instructions de telecommande et de donnees de mesure respectivement a un ou plusieurs actionneurs ou dispositif de surveillance monte dans une automobile - Google Patents

Procede et dispositif de transmission d'instructions de telecommande et de donnees de mesure respectivement a un ou plusieurs actionneurs ou dispositif de surveillance monte dans une automobile Download PDF

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Publication number
WO1998031901A1
WO1998031901A1 PCT/EP1998/000219 EP9800219W WO9831901A1 WO 1998031901 A1 WO1998031901 A1 WO 1998031901A1 EP 9800219 W EP9800219 W EP 9800219W WO 9831901 A1 WO9831901 A1 WO 9831901A1
Authority
WO
WIPO (PCT)
Prior art keywords
signals
automobile
radio
measurement data
remote control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP1998/000219
Other languages
German (de)
English (en)
Inventor
Norbert Normann
Gunter Lothar Schulze
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.)
Doduco Solutions GmbH
Original Assignee
Doduco GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19720123A external-priority patent/DE19720123C2/de
Application filed by Doduco GmbH and Co filed Critical Doduco GmbH and Co
Publication of WO1998031901A1 publication Critical patent/WO1998031901A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/2081—Means to switch the anti-theft system on or off combined with personal settings of other vehicle devices, e.g. mirrors, seats, steering wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves

Definitions

  • the invention relates to a method and a device for transmitting telecontrol commands to one or more actuators in an automobile and measurement data to one or more monitoring devices in the same automobile.
  • the remote control device has a transmitter that transmits a remote control signal with an identifier to a receiver provided in the automobile with an antenna, both of which are tuned to the frequency of the transmitted remote control signal.
  • the signal is demodulated, decoded and transmitted to an actuator, which is an electrical switching device that switches on the heating.
  • Each of these known systems has its own transmitter, its own receiver with receiving antenna, its own demodulators and decoders, its own evaluation circuit and its own actuators or monitoring devices.
  • the present invention has for its object to reduce the outlay on equipment for such telemetry and telecontrol systems in automobiles.
  • the expenditure on equipment and, with it, the system costs are reduced by the fact that a common RF receiver, a common demodulator, a common decoder and one or more common receiving antennas are used for receiving radio signals with telecontrol commands and radio signals with measurement data, so that on the reception side, the expenditure on equipment is minimized.
  • radio transmission is limited to a specific frequency band, in particular 433 MHz or 315 MHz, in which the telecontrol and telemetry systems known in automobiles mainly work.
  • Whether one or more receiving antennas are required according to the invention depends on the nature of the telecontrol commands and measurement data to be transmitted.
  • Known radio keys and remote controls for heating in automobiles work with only one antenna each.
  • Known tire pressure monitoring systems have a separate antenna for each wheel in its vicinity. If, according to the invention, a tire pressure monitoring system, for example monitoring four wheels, is combined with a radio key for the central locking and with a remote control for additional heating in the automobile, then according to the invention one saves two receiving antennas, two HF receivers, two demodulators, two decoders and the line connections between them that are otherwise required. Further advantages lie in the lower assembly and cabling effort, in the smaller space requirement and in a reduction of the susceptibility to failure associated with the reduction of the components.
  • Another advantage of the invention is that individual systems can now benefit from options that were previously not available to them for separate receivers on the receiving side for cost reasons.
  • previous radio key receivers and receivers for heating controls are only equipped with a central receiving antenna for cost reasons.
  • This has the disadvantage that the reception sensitivity depends very much on the direction from which the radio signal is coming, so that a reliable long-distance effect at certain distances is not possible from every direction.
  • the telecontrol systems are combined with a tire pressure monitoring system which assigns a separate antenna to each wheel, then all of these antennas also receive the telecontrol signals, which significantly improves the all-round reception sensitivity.
  • This results in a further advantage that the transmission power of the radio key or the remote control for heating in the automobile can be reduced, so that a battery change is no longer necessary for their operation.
  • a decoder is preferably used to carry out the invention, in which protocols of types of digital signals with different formats and structures are preferably stored as software.
  • Such a decoder is referred to below as a multi-protocol decoder. It can receive and recognize signals with different formats by comparing the format and structure of each received signal with the stored protocols, selecting the appropriate protocol based on the comparison and decoding the signal on the basis thereof. In this way, signals from different origins can be evaluated even if they differ in their format and in their logical structure.
  • An advantageous development of the invention is that a common remote control device with only one transmitter and with only one antenna is provided for different telecontrol systems in the automobile, with which, for example, the central locking system and an additional heater in the automobile can be operated.
  • FIG. 1 shows a simplified block diagram of a combined telemetry and telecontrol system for an automobile with a tire pressure monitoring device, with a radio key and with an additional heater that can be controlled by radio, and
  • Figure 2 shows in detail a block diagram of the receiving part of the telemetry and telecontrol system.
  • FIG. 1 schematically shows the chassis 1 of an automobile with four wheels 2, on each of which wheel electronics 3, 4, 5, 6 are attached.
  • the wheels 2 have pneumatic tires with valves, in which the wheel electronics 3 to 6 are accommodated.
  • Each wheel electronics has a pressure sensor which responds to the air pressure in the tire, an evaluation circuit which pre-evaluates the pressure measurement signal, a transmitter and a transmission antenna via which radio signals are transmitted which contain the current pressure measurement value and an individual identifier for the wheel electronics 3 to 6 concerned.
  • a reception antenna 11, 12, 13 and 14 is located in the vicinity of each wheel, expediently in the wheel arch of the chassis. All four reception antennas 11-14 are connected to a central reception and evaluation device 19 by means of lines 15, 16, 17 and 18 connected.
  • the automobile is also equipped with an additional heater 26 and with a central locking system 28.
  • the additional heater 26 can be switched on and off by radio using a remote control device 7.
  • the Central locking system can be operated by means of a radio key 8.
  • a radio key 8 For this purpose, there is a battery-operated transmitter with an antenna 9 in the remote control device 7 and a battery-operated transmitter with an antenna 10 in the radio key 8.
  • the remote control device 7 and the radio key 8 transmit radio signals which contain remote control commands and an individual identifier. These signals, like the signals emitted by the wheel electronics 3 to 6, are received by the receiving antennas 11 to 14, the level of the received signal generally being highest on the closest antenna.
  • the received signals are fed via lines 15 to 18 to the central receiving and evaluating device 19, which contains a four-channel receiver 20, a demodulator 21 and a multi-protocol decoder 22.
  • the signals which contain the identifiers and the telecontrol commands or the measured values, preferably binary coded, are amplified in the receiver 20, in the demodulator 21, which can be an FM or AM demodulator depending on the type of transmission, demodulated and in the decoder
  • the decoded identifiers being compared with previously stored identifiers. If the comparison shows that a signal has an identifier which does not match any of the stored identifiers, then the signal is rejected or stored under its identifier for further evaluation. (After changing a wheel, for example, the signal coming from the changed wheel could have a new identifier that the decoder has not previously known, but can save as a new identifier if it always appears instead of another identifier).
  • the central receiving and evaluating device 19 has three outputs, to which the received signals are selectively distributed according to their coding after passing through the decoder 22:
  • the signals originating from the wheel electronics 3 to 6 are sent to a first output, an evaluation circuit
  • a display unit for example an alphanumeric LCD display or a number of light-emitting diodes as signal lamps.
  • the signals coming from the remote control device 7 are fed via a second output to a first actuator 25, which is an electrical switching device which switches the additional heater 26 on and off.
  • the signals coming from the radio key are fed via a third output to a second actuator 27, by means of which the central locking system 28 is actuated to open or close the automobile.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Selective Calling Equipment (AREA)

Abstract

L'invention concerne un procédé de transmission d'instructions de télécommande à un ou plusieurs actionneurs (25, 27) montés dans une automobile (1) ou de données de mesure à un ou plusieurs dispositifs de surveillance (23, 24) montés dans ladite automobile (1), comprenant les étapes suivantes: émission par un ou plusieurs émetteurs (7, 8) de signaux radio HF contenant des instructions de télécommande et un élément d'identification caractérisant l'origine de chaque instruction de télécommande; émission par un ou plusieurs émetteurs (3 à 6) de signaux radio HF contenant les données de mesure et un élément d'identification caractérisant l'origine de chaque donnée de mesure; réception par une ou plusieurs antennes (11-14) montées sur l'automobile (1) de tous les signaux radio; transmission par câble des signaux reçus par radio à un récepteur HF (20) commun; séparation, en fonction de leurs éléments d'identification, des signaux transmis au récepteur (20); transmission des signaux séparés aux actionneurs (25, 27) et dispositif de surveillance (23, 24) auxquels sont affectés les éléments d'identification, de façon présélectionnée, cela conformément à l'affectation sélectionnée.
PCT/EP1998/000219 1997-01-17 1998-01-16 Procede et dispositif de transmission d'instructions de telecommande et de donnees de mesure respectivement a un ou plusieurs actionneurs ou dispositif de surveillance monte dans une automobile Ceased WO1998031901A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19701452.6 1997-01-17
DE19701452 1997-01-17
DE19720123A DE19720123C2 (de) 1997-01-17 1997-05-14 Verfahren und Einrichtung zum Übertragen von Fernwirkbefehlen und von Meßdaten an einen oder mehrere Aktuatoren bzw. Überwachungsgeräte in einem Automobil
DE19720123.7 1997-05-14

Publications (1)

Publication Number Publication Date
WO1998031901A1 true WO1998031901A1 (fr) 1998-07-23

Family

ID=26033172

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/000219 Ceased WO1998031901A1 (fr) 1997-01-17 1998-01-16 Procede et dispositif de transmission d'instructions de telecommande et de donnees de mesure respectivement a un ou plusieurs actionneurs ou dispositif de surveillance monte dans une automobile

Country Status (1)

Country Link
WO (1) WO1998031901A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7222046B2 (en) 2004-04-19 2007-05-22 Siemens Aktiengesellschaft Device and method for ascertaining the wheel position of wheels on a wheeled vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940964A (en) * 1989-12-04 1990-07-10 Victor Dao Vehicle control and theft deterrent with remote transmitter
EP0667597A2 (fr) * 1994-02-14 1995-08-16 Texas Instruments Deutschland Gmbh Système de communication intégré pour véhicules

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940964A (en) * 1989-12-04 1990-07-10 Victor Dao Vehicle control and theft deterrent with remote transmitter
EP0667597A2 (fr) * 1994-02-14 1995-08-16 Texas Instruments Deutschland Gmbh Système de communication intégré pour véhicules

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7222046B2 (en) 2004-04-19 2007-05-22 Siemens Aktiengesellschaft Device and method for ascertaining the wheel position of wheels on a wheeled vehicle

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