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EP0514996A1 - Appareil antiviral pour véhicules - Google Patents

Appareil antiviral pour véhicules Download PDF

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Publication number
EP0514996A1
EP0514996A1 EP92201447A EP92201447A EP0514996A1 EP 0514996 A1 EP0514996 A1 EP 0514996A1 EP 92201447 A EP92201447 A EP 92201447A EP 92201447 A EP92201447 A EP 92201447A EP 0514996 A1 EP0514996 A1 EP 0514996A1
Authority
EP
European Patent Office
Prior art keywords
mobile means
signals
receiving
electronic device
communication network
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Withdrawn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
EP92201447A
Other languages
German (de)
English (en)
Inventor
Lorenzo Petrogalli
Massimo Protti
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0514996A1 publication Critical patent/EP0514996A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
    • G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station

Definitions

  • the present invention relates to an anti-theft apparatus for mobile means.
  • the alarm and signalling devices possibly associated with the locking and/or passive defence devices cited hereinabove, theoretically should secure a good ant-theft protection or, at least, represent a sufficient deterrent, such as to prevent the thief from continuing its work.
  • the purpose of the present invention is of providing an anti-theft apparatus for mobile means, of the type, and for such applications as mentioned hereinabove, which substantially eliminates the drawbacks displayed by the anti-theft devices mentioned in the foregoing.
  • an anti-theft apparatus for mobile means is proposed, which apparatus is constituted by an electronic device suitable for being installed on board of the mobile means to be protected, which electronic device is operatively connectable with force detecting devices of known type and/or movement detecting devices, also of known type, characterized in that said electronic device comprises a signal generator operatively connected with at least one transmitter device, with said signals being coded in such a way that they contain an identification code univocally associated with the mobile means, and that said transmitter device is suitable for transmitting said coded signals generated by said eletronic device, to at least one coordination station capable of processing these received coded signals, so as to univocally identify said mobile means and determine the position of said mobile means.
  • said transmitter device is suitable for transmitting said coded signals to said coordination station through a communication network comprising a plurality of receiving/transmitting stations, said coordination station being capable of determining the position of said mobile means by means of geometrical detection procedures based on the relative time delay with which said signals reach at least two stations belonging to said plurality of receiving/transmitting stations.
  • said coordination station can comprise at least one receiver device suitable for receiving the coded signals re-transmitted by said at least two receiving/transmitting stations, and a data processing unit capable of decoding the coded signals received by said receiver device, so as to univocally identify the mobile means which transmitted said signals, said data processing unit being suitable for performing a program which performs the task of calculating the position of said mobile means by carrying out algebraic calculations, by starting from the positions of said at least two receiving/transmitting stations, and from the relative time delays with which said coded signals transmitted by said transmitter devices installed on board of said mobile means reach said at least two receiving/transmitting stations.
  • the advantages attained by means of the present invention essentially consist in that, in that way, one can know, at each time point, the current position of the mobile means after an activation of an alarm device, or an unauthorized movement of the mobile means.
  • the reference number 10 indicates a mobile means equipped with an electronic device 11 operatively connected with a force detecting device indicated with the reference numeral 12.
  • This force detecting device can be a whatever electrical, mechanical or electronic device of known type, suitable for signalling the movement of the mobile means, the starting up of its engine, or the occurred forcing of a part thereof.
  • the force detecting device 12 enables the electronic device 11, which sends an electrical signal, with signal frequencies comprised within the range of from 10 to 15 MHz, to a dipole aerial 13 provided on the same mobile means 10.
  • the electrical signal emitted by the electronic device 11 is so coded, that with said electrical signal a unique code is associated, which is different for all mobile means, and is suitable for univocally identifying the mobile means 10.
  • the signals irradiated by the dipole aerial 13 are picked up by at least two ground receiving/transmitting stations 14 belonging to a communication network of "Loran" type.
  • the at least two receiving/transmitting stations 14 receive the signal emitted by the mobile means 10 with a relative time delay, due to the difference in distance of said stations from the mobile means 10.
  • the receiving/transmitting stations 14 which received the signal re-transmit it back to a ground coordination station, generally indicated with the reference numeral 15.
  • the coordination station 15 is capable of processing the signal coming from receiving/transmitting transmitting stations 14 and of calculating, by starting from this time delay and from the (known) positions of the receiving/transmitting stations 14, the position of the mobile means 10.
  • the electronic device 11 and the dipole aerial 13 should suitably be adequately concealed inside the interior of the mobile means 10.
  • the electronic device 11 can furthermore be equipped with internal accumulator batteries, not shown in the drawings, which allow the signals to be emitted also in case the electrical system of the mobile means 10 is disconnected.
  • Figure 2 shows in greater detail a functional block diagram in which the connections between the main elements which constitute the coordination station 15, are displayed.
  • a receiver device 16 is connected with a data processing unit generally indicated with the reference numeral 17.
  • the data processing unit 17 essentially comprises a programmable microcomputer 18, which is furthermore connected with further peripherals.
  • peripherals are at least one mass storage unit 19, preferably of magnetic-storage type, an interface device 20, to interface the system with the human operator, preferably a keyboard and/or a pointing device, and at least one display means 21, preferably a graphic CRT (cathodic ray tube) display.
  • the data processing unit 17 performs a program which can physically reside, indifferently, either in an internal ROM, or in the mass storage unit 19, which program enables the data processing unit 17 to perform the following functions:
  • the position of all mobile means in alarm status can be always known, or, at least, the position can be known which the mobile means had before the connection was interrupted.
  • the electronic device 11 is connected with a paraboloid aerial 22.
  • This paraboloid aerial 22 which is installed orientated upwards, irradiates the coded electrical signal generated by the electronic device 11 with better directionality and higher power than dipole aerial.
  • These signals are picked up by at least two receiving/transmitting stations 23 installed on board of satellites in a geo-stationary orbit, which transmit the received signal back to the ground coordination station 15.
  • the transmission frequency of the electrical signal emitted by the electronic device 11 is comprised, in this form of practical embodiment, e.g., within the range of from 10 to 15 GHz.
  • the receiving/transmitting stations 23 which received the signal re-transmit it back to the ground coordination station 15.
  • the coordination station 15 calculates the position of the mobile means 10.
  • the receiver device 16 of the coordination station 15 is preferably equipped with a parabolic receiver aerial, not depicted.
  • the program performed by the data processing unit 17 performs, in this case, absolutely analogous tasks to those as disclosed with reference to the form of practical embodiment of Figure 1.
  • the detection of the position of the mobile means 10 is carried out by processing the data of delay with which the signal reaches the receiving/transmitting stations 23 installed on board of the satellites, with the position of the geo-stationary satellites being known.
  • the electronic device 11 installed aboard the mobile means 10 is capable of sending the coded signal, alternatively to the dipole aerial 13 and to the paraboloid aerial 22.
  • Said coded electrical signal is however sent to both aerials 13 and 22, with transmission frequencies which are very different from each other.
  • the dipole aerial 13 is provided in order to exclusively transmit towards the "Loran" communication network, with transmission frequencies comprised within the range of from 10 to 15 MHz, i.e., typical values for this first communication network.
  • the paraboloid aerial 22 is provided in order to exclusively transmit towards the communication network based on geo-stationary satellites, with transmission frequencies comprised within the range of from 10 to 15 GHz, typical values for this second communication network.
  • the dipole aerial 13 transmits, alternatively and at regular time intervals, signals directed to the ground receiving/transmitting stations 14 and, during the time intervals during which the electronic device 11 does not send signals to dipole aerial 13, the paraboloid aerial 22 transmits signals directed to the receiving/transmitting stations 23 installed aboard the geo-synchronous satellites.
  • the electronic device 11 alternates the sending of the signals to aerials 13 and 22 with an extremely rapid switching pattern, so as to obtain a virtually simultaneous transmission to both the "Loran” mesh communication network, and to the geo-synchronous satellite network.
  • the receiver device 16 of the coordination station 15 is equipped with means, not depicted in the drawing, suitable for receiving both the signals coming from the stations 14 belonging to the mesh communication network of "Loran" type, and the signals coming from the receiving/transmitting stations 23 belonging to said communication network of the type based on geo-synchronous satellites.
  • the management program performed by the data processing unit 17 performs such functions as to make it possible the position of the mobile means 10 to be identified, by processing both the data received from the receiving/transmitting stations 14, and the data received from receiving/transmitting stations 23.
  • a higher reliability is thus achieved in case of failures, of bad reception or in case of emission of purposely false signals, together with a useful redundancy, which considerably decreases the possibility that the signal emitted by the electronic device 11 may not reach the coordination station 15.
  • the position of the mobile means 10 can be determined with a maximal error of approximately 20 metres both in latitude and in longitude.
  • Figure 5 displays a possible form of practical embodiment of the paraboloid aerial 22, in which said aerial is constituted by an emitter 24 installed in the focus of a reflector 25.
  • the emitter 24 irradiates the radio waves towards the reflector 25 which, in its turn, reflects them and concentrates them in the direction of its own axis.
  • the beam emitted by the aerial 22 results to be concentrated in a well precise direction and, although its width decreases, it considerably gains in power.
  • Figure 6 shows an example of a possible positioning of the paraboloid aerial 22 of Figure 5, inside the interior of a bumper 26 of a motor vehicle.
  • FIG 7 shows a fourth form of practical embodiment of the apparatus according to the present invention, in which the common elements shared by this, and the forms of practical embodiment of Figures 1, 3 and 4 are indicated with the same reference numerals.
  • an optical-fibre gyroscope 27 of known type is installed and operatively connected with the electronic device 11.
  • the electronic device 11 is further connected with the dipole aerial 13 and the force detecting device 12.
  • the optical-fibre gyroscope 27 is a sturdy and reliable device and not particularly expensive, suitable for detecting the latitude and longitude of the site in which it is installed.
  • This gyroscope 27 is capable of performing very precise measurements, basing on the change in earth magnetic field as a function of latitude and longitude.
  • the current position of the mobile means 10 will immediately be known on board of the same mobile means.
  • the electronic device 11 is capable of coding the electrical signal in such a way that with said signal, besides the identification code, also the information of current position of the mobile means 10, as received from the optical-fibre gyroscope 27, will be associated.
  • This electrical signal is sent, by the dipole aerial 13, to at least one receiving/transmitting station 14, belonging to the "Loran" type communication network.
  • the coordination station 15 decodes the code received and re-transmitted by the receiving/transmitting station 14 and directly obtains, without performing any geometrical processing, the position of the vehicle which emitted the signal.
  • the stations 14 of the "Loran" communication network are not used in order to perform the geometrical detection of the position of the mobile means 10, but are simply used as repeater stations.
  • the coded signal contains, per se , all the necessary data in order to perform the detection of the position of the mobile means, it is necessary that this signal, in order that it can be suitably used, reaches the coordination station 15.
  • the precision of the measurement of position performed by the optical-fibre gyroscope 27 is very high, with errors of just a few metres both in latitude and longitude.
  • the present invention starts to act exactly where the devices known from the prior art --which are incapable of preventing at all costs the theft of the mobile means, or of obliging the criminals to get away -- fail, whilst, even under such circumstances, the present invention makes it possible the position of the mobile means to be monitored, and said mobile means to be rapidly recovered, without that the thief may suspect anything.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Burglar Alarm Systems (AREA)
EP92201447A 1991-05-20 1992-05-20 Appareil antiviral pour véhicules Withdrawn EP0514996A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI911371 1991-05-20
ITMI911371A IT1248313B (it) 1991-05-20 1991-05-20 Apparecchiatura antifurto per mezzi mobili

Publications (1)

Publication Number Publication Date
EP0514996A1 true EP0514996A1 (fr) 1992-11-25

Family

ID=11359928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92201447A Withdrawn EP0514996A1 (fr) 1991-05-20 1992-05-20 Appareil antiviral pour véhicules

Country Status (2)

Country Link
EP (1) EP0514996A1 (fr)
IT (1) IT1248313B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9312460U1 (de) * 1993-08-19 1994-12-15 Siemens AG, 80333 München Elektronische Anordnung zur Überwachung eines Zustandes eines oder mehrerer Gegenstände, z.B. einer Sache und/oder Person
DE4425530A1 (de) * 1993-08-19 1995-02-23 Siemens Ag Sicherheitssystem, insbesondere für ein Kraftfahrzeug
DE4403990A1 (de) * 1994-02-09 1995-08-10 Panasonic Deutschland Gmbh Verfahren zur Diebstahlsicherung und zum Auffinden von gestohlenen mobilen Audiogeräten und Kraftfahrzeugen und Vorrichtung zur Durchführung des Verfahrens
DE4404580A1 (de) * 1994-02-12 1995-08-17 Vendoret Holding Sa Einrichtung gegen Kraftfahrzeugdiebstähle
CN1035218C (zh) * 1994-12-14 1997-06-18 深圳永华电子专利精品开发有限公司 机动车联网监测方法及系统
WO2005027474A1 (fr) * 2003-09-11 2005-03-24 Ian Cannell Enveloppe de securite

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408882A (en) * 1981-07-02 1983-10-11 The United States Of America As Represented By The Secretary Of The Navy Optical gyroscope with time dependent wavelength
FR2541801A1 (fr) * 1983-02-28 1984-08-31 Aerac Appareil pour la surveillance et le reperage permanents par satellite d'un mobile terrestre ou marin en cas de detresse, de vol, d'agression ou de tentative de vol et/ou d'agression applicable aux camions de marchandises
EP0242099A2 (fr) * 1986-04-09 1987-10-21 Advanced Strategics, Inc. Système de localisation et d'anti-vol

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408882A (en) * 1981-07-02 1983-10-11 The United States Of America As Represented By The Secretary Of The Navy Optical gyroscope with time dependent wavelength
FR2541801A1 (fr) * 1983-02-28 1984-08-31 Aerac Appareil pour la surveillance et le reperage permanents par satellite d'un mobile terrestre ou marin en cas de detresse, de vol, d'agression ou de tentative de vol et/ou d'agression applicable aux camions de marchandises
EP0242099A2 (fr) * 1986-04-09 1987-10-21 Advanced Strategics, Inc. Système de localisation et d'anti-vol

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY. vol. VT-21, no. 3, August 1972, NEW YORK US pages 92 - 101; W.T.WARREN ET AL: 'Vehicle Location System Experiment' *
MACHINE DESIGN. vol. 62, no. 18, 6 September 1990, CLEVELAND US pages 78 - 79; 'STOLEN CARS PHONE HOME' *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9312460U1 (de) * 1993-08-19 1994-12-15 Siemens AG, 80333 München Elektronische Anordnung zur Überwachung eines Zustandes eines oder mehrerer Gegenstände, z.B. einer Sache und/oder Person
DE4425530A1 (de) * 1993-08-19 1995-02-23 Siemens Ag Sicherheitssystem, insbesondere für ein Kraftfahrzeug
DE4403990A1 (de) * 1994-02-09 1995-08-10 Panasonic Deutschland Gmbh Verfahren zur Diebstahlsicherung und zum Auffinden von gestohlenen mobilen Audiogeräten und Kraftfahrzeugen und Vorrichtung zur Durchführung des Verfahrens
DE4404580A1 (de) * 1994-02-12 1995-08-17 Vendoret Holding Sa Einrichtung gegen Kraftfahrzeugdiebstähle
CN1035218C (zh) * 1994-12-14 1997-06-18 深圳永华电子专利精品开发有限公司 机动车联网监测方法及系统
WO2005027474A1 (fr) * 2003-09-11 2005-03-24 Ian Cannell Enveloppe de securite

Also Published As

Publication number Publication date
ITMI911371A1 (it) 1992-11-20
ITMI911371A0 (it) 1991-05-20
IT1248313B (it) 1995-01-05

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