WO2004030991A1 - Dispositif de production et de distribution de signaux de dispositifs multimedia dans des vehicules - Google Patents

Dispositif de production et de distribution de signaux de dispositifs multimedia dans des vehicules Download PDF

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Publication number
WO2004030991A1
WO2004030991A1 PCT/DE2003/002461 DE0302461W WO2004030991A1 WO 2004030991 A1 WO2004030991 A1 WO 2004030991A1 DE 0302461 W DE0302461 W DE 0302461W WO 2004030991 A1 WO2004030991 A1 WO 2004030991A1
Authority
WO
WIPO (PCT)
Prior art keywords
video
multimedia
display
signal distributor
signals
Prior art date
Application number
PCT/DE2003/002461
Other languages
German (de)
English (en)
Inventor
Matthias Karl
Original Assignee
Robert Bosch Gmbh
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 DE10307748A external-priority patent/DE10307748A1/de
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP03797949A priority Critical patent/EP1545934A1/fr
Publication of WO2004030991A1 publication Critical patent/WO2004030991A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof

Definitions

  • the invention relates to a device for distributing signals from multimedia devices to output devices and to a method for operating multimedia devices in motor vehicles.
  • the invention is based on the object of designing a device and a method of the type mentioned at the outset in such a way that an increased range of information which is provided by information sources and to the user with little effort Output units such as advertisements and sound outputs are transmitted without restriction of the transmission performance.
  • this object is achieved by a device with the features of claim 1, a method with the features of claim 13 and a vehicle equipped with the device.
  • the aim is to find a suitable place for the arrangement of devices and cables on the one hand and to minimize the installation space and the vehicle weight, but on the other hand to maintain maximum comfort.
  • the video signals from multimedia sources consisting of large amounts of data are optionally transmitted to existing multimedia sinks without loss of transmission, the transmission effort, in addition to the relatively inexpensive video / audio signal distributor, being essentially dependent on the number of multimedia sources used in each case and lower is determined.
  • the signals are then forwarded to one or more output devices such as a central display, an instrument cluster and / or a rear seat unit.
  • Instrument clusters are output devices that primarily serve to inform the driver, while the central display is an output unit that also serves to inform the passenger.
  • the rear seat unit serves the information of the people in the rear seats.
  • the multimedia device is preferably an audio source, in particular a radio, a telephone, a CD, cassette, MD player or a hands-free system of a mobile radio device and / or a video source, in particular a
  • TV receiver TV receiver, a game console, a DVD drive, a video player, a navigation system or a multimedia element for providing basic vehicle functions.
  • the result of information transmission is that the multimedia devices installed in a vehicle are quickly overtaken.
  • the vehicle computer and the Multimedia devices are therefore preferably arranged separately, as a result of which an independent exchange of the multimedia devices, a multimedia basic element and the vehicle computer can be replaced independently of other devices.
  • a multimedia basic element preferably remains installed over the entire life of the vehicle and only the vehicle computer and the other multimedia devices such as DVD players, navigation systems or the like are adapted to the state of the art.
  • the multimedia basic element is connected to at least one output device, preferably the central display, so that the basic vehicle functions such as air conditioning, heating, radio, emergency call, remote diagnosis or gateway functions to vehicle bus systems are retained if the vehicle computer fails.
  • the multimedia basic element preferably also contains the operating elements for the multimedia devices;
  • the central display can also be set using the multimedia basic element.
  • At least one communication unit in particular a telephone or a radio, is preferably connected to the multimedia basic element in order to be able to make quick contact in an emergency, even if the vehicle computer fails.
  • a radio is advantageously integrated into the multimedia basic element. Since a radio is now part of the standard equipment of every vehicle, integrating the radio into the multimedia basic element has the advantage that the operating elements of the multimedia basic element can also be used.
  • the video / audio signal distributor is preferably connected to the instrument cluster, the central display and / or the rear seat units by coaxial lines.
  • the coaxial lines transmit the information such.
  • Video signals for display In addition to the video information, control information about changing the video source is transmitted to the display in or next to the display line.
  • the display changes the image in the display on the basis of the control information about the change of the video source in such a way that the change of the video source is perceived as pleasant for the viewer of the display.
  • a pleasant change is e.g. B. a short-term decrease in contrast or brightness.
  • the tax information about the Changing the video source is not in the display line, but e.g. B. transmitted as an information package on a separately laid bus such as CAN or MOST.
  • the control information about the change in the video source in the display line is encoded as a change in an otherwise unchanged current or voltage level.
  • different video formats PC-VGA, TV-625 lines
  • the information of the transmitted video formats is transmitted in a manner similar to the control information about the change of the video source in or next to the display line for display.
  • (Standard) images as they are e.g. B. used for user interfaces can come to the displays in a different way than the video signal and there, for. B. in cross-fade techniques, applied to the video image.
  • the multimedia devices are preferably arranged between a driver's seat and a passenger's seat in the center console of the motor vehicle.
  • This has the advantage that long bus systems or long individual lines can be dispensed with.
  • the video / audio signal distributor is further preferably equipped with a large number of interfaces, in particular a USB, PCMCIA, RS232, VGA, game console and / or Bluetooth interface.
  • the interfaces make it possible to connect additional external multimedia devices to the video / audio signal distributor, which can then be displayed, e.g. of the rear seat units can be used.
  • a vehicle computer and a multiplicity of multimedia devices are connected to a video / audio signal distributor, the signals transmitted in the video / audio signal distributor to at least one output device, for example a combination instrument, and at least one central display and / or at least one rear seat unit are forwarded.
  • the selection of which output device is to be controlled is made by the vehicle computer, which is either preprogrammed or can be programmed accordingly using the control buttons, for example of the multimedia basic element
  • An advantage of the video / audio signal distributor and the distribution method is that video / audio signals can be displayed or output without bandwidth problems. Coding or format conversion, as with a digital bus, can be dispensed with.
  • the multimedia devices are advantageously operated by a vehicle computer which is operated via the multimedia basic element.
  • the individual modules are interconnected by display lines. These display lines are designed as coaxial cables, which prevents electromagnetic interference.
  • the multimedia basic element preferably manages the basic functions of on-board electronics of a vehicle, in particular heating, air conditioning, radio, emergency call, remote diagnosis or gateway functions to the vehicle bus.
  • a change of a video source is carried out by means of a transition. Since a brief change in contrast and brightness is perceived as pleasant, a change in the signal source is accompanied by darkening a screen of the instrument cluster, the central display and / or the rear seat unit.
  • FIG. 1 to 3 block diagrams of the device.
  • FIG. 1 shows an overview of the device 1.
  • the video / audio signal distributor 2 is connected to the vehicle computer 3 and to various multimedia devices 4.
  • the vehicle computer 3 and the video / audio signal distributor 2 consist of separate assemblies, which makes it possible to easily replace the multimedia devices 4 which are to be adapted to technical developments during the lifetime of the vehicle.
  • a combination instrument 5, a central display 6 and two rear seat units 7 are connected to the video / audio signal distributor 2.
  • the multimedia devices 4 are connected to a multimedia basic element 8, which is also coupled to the vehicle computer 3 and to which a communication unit 9 is connected.
  • a radio 10 and the operating elements 11 are integrated in the multimedia basic element 8, with which the multimedia devices 4, the vehicle computer 3 and further functions, in particular basic vehicle functions, can be controlled.
  • the video / audio signal distributor 2 can be equipped with further interfaces 12. These interfaces 12 also enable the connection of external devices, such as portable computers, PDAs and or other electronic devices.
  • a line is understood to mean a connection with exactly one signal potential.
  • a cable combines several lines that are insulated from each other. Signals of a display cable belong together logically if they all affect the same display and do not belong together if they affect neighboring displays.
  • the device 1 of the present invention makes it possible to control various multimedia devices 4, such as television receivers, DVD drives or navigation systems, by means of a central operating element 11 on the multimedia basic element 8.
  • the signals emanating from these multimedia devices 4 are sent to the video / audio signal distributor 2, which then supplies the corresponding output devices, such as the central display 6, the instrument cluster 5 and / or the rear seat unit 7, with the video and / or audio signal.
  • This division makes it possible to install and share the same basic equipment in all multimedia devices 4 only once in a vehicle.
  • the video / audio signal distributor 2 also makes it possible to dispense with bus systems.
  • the communication unit 9 is connected directly to the multimedia basic element 8, so that there is a possibility of communication in an emergency.
  • the rear seat units 7 can be equipped with headphones.
  • Control information 14 is generated, for example, via control elements; Control elements are located on each output device or are logically assigned to those for radio remote controls via which it is possible to switch between the individual sources, for example between different DVD players, television, audio, PC1 etc.
  • the control elements 11 are thus preferred for the central display 6 intended.
  • a signal change can also be carried out on the rear seat units 7 or on the interfaces via the operating elements 11 or an operating unit which acts on the vehicle computer 3.
  • the alternative route 15 for the transmission of control information 14 leads to the output devices 5, 6, 7, 12, wherein the control information 14 can alternatively also be routed to the distribution box 2 via the line 20.
  • Information 16 about the video format used and possibly about the audio format used can be distributed via an alternative route 17 for the transmission of the information 16 or the display lines 13, the alternative route 19 for the transmission of still images and the alternative route 15 for the transmission of control information 14 and the alternative route 17 for the transmission of
  • Information 16 can be physically identical.
  • the alternative way 17 to Transmission of the information 16 about the video format used and possibly audio format leads to the output devices 5, 6, 7 and 12.
  • Still images can come from any source 3, 4, 8, 9, 10 or can already be stored in the output devices 5, 6, 7, 12 and depending on the control information 14 about the source change or the information 16 about the video format used and, if appropriate Audio format can be switched for display.
  • a vehicle computer 3 and communication units 9 operate bidirectionally and can therefore be referred to as both a multimedia sink and a multimedia source.
  • FIG. 2 shows a block diagram with a video signal distributor 2, which is connected to rear seat units 7 via display lines 13.
  • Control information 14 about the change of source can be fed into the display line 13, and this control information 14 can also be transmitted to the rear seat units 7 via an alternative route 15.
  • Alternative routes 17 for the transmission of information 16 about the video and audio format used can also be provided, as can an alternative route 19 for the transmission of still images.
  • control information 14 about the change of the video source is transmitted to the display 5, 6, 7, 12.
  • the display 5, 6, 7, 12 will change the image in the display 5, 6, 7, 12 based on the control information 14 about the change of the video source such that the change of the video source for the
  • Such a pleasant change is e.g. B. a brief decrease in contrast or brightness.
  • Figure 3 shows a spatially distributed video distribution box, which consists of separate physical units 2a, 2b.
  • the units 2a, 2b can be attached to the respective rear seats or in the vicinity of the cardan tunnel.
  • the advantage is the use of simple mechanical and electromechanical switches and the possibility of retrofitting together with the display unit. Therefore, the costs are optimally used.
  • the various switches in FIG. 3 indicate that the respective channels are unlocked from one another so that the display unit 7 can be completely replaced.
  • the device 1 is designed in such a way that the audio signals of the multimedia sources 3, 4, 8, 9, 10, 12 by means of the video signal distributor, which then becomes a video / audio signal distributor, in the same way as the video signals via the Display lines 13 are forwarded to the output units 5, 6, 7, 12. Due to the separation into a display line 13 and a line 20, different data streams are transmitted in an adapted manner, since a video source generates approximately 15 Mbit / s, which is more than one hundred times an audio source with less than 0.15 Mbit / s. Therefore, all audio signals are easily merged on a bus line 20 with still images and control information, and the video signals can be carried separately from the audio and control signals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un dispositif (1) permettant de produire et de distribuer des signaux de dispositifs multimédia (4, 8) à une pluralité d'unités de sortie (5, 6, 7) dans une automobile, ainsi qu'un procédé d'exploitation de dispositifs multimédia dans des automobiles. L'invention vise à mettre au point un dispositif et un procédé du type mentionné précédemment, de complexité technique réduite et qui n'altère pas la capacité de transmission. A cet effet, il est prévu, selon l'invention, que les dispositifs multimédia (4, 8) et les unités de sortie (5, 6, 7) soient interconnectés par l'intermédiaire d'un répartiteur de signaux vidéo (2), qui transmet les signaux aux unités de sortie (5, 6, 7) sélectionnées ou sélectionnables et est piloté de préférence par un ordinateur de bord (3).
PCT/DE2003/002461 2002-09-27 2003-07-22 Dispositif de production et de distribution de signaux de dispositifs multimedia dans des vehicules WO2004030991A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03797949A EP1545934A1 (fr) 2002-09-27 2003-07-22 Dispositif de production et de distribution de signaux de dispositifs multimedia dans des vehicules

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10245332.2 2002-09-27
DE10245332 2002-09-27
DE10307748.0 2003-02-24
DE10307748A DE10307748A1 (de) 2002-09-27 2003-02-24 Einrichtung zum Bereitstellen und Verteilen von Signalen von Multimediageräten in Fahrzeugen

Publications (1)

Publication Number Publication Date
WO2004030991A1 true WO2004030991A1 (fr) 2004-04-15

Family

ID=32070695

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/002461 WO2004030991A1 (fr) 2002-09-27 2003-07-22 Dispositif de production et de distribution de signaux de dispositifs multimedia dans des vehicules

Country Status (2)

Country Link
EP (1) EP1545934A1 (fr)
WO (1) WO2004030991A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939631A1 (de) * 1999-08-20 2001-02-22 Nokia Mobile Phones Ltd Multimediaeinheit
DE19963155A1 (de) * 1999-12-24 2001-06-28 Mannesmann Vdo Ag Audio- und/oder Videosystem, insbesondere für Kraftfahrzeuge oder Heimanwendungen
EP1155915A2 (fr) * 2000-05-18 2001-11-21 BECKER GmbH Equipement électronique à boítier ou support et support ou boítier pour ses modules

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939631A1 (de) * 1999-08-20 2001-02-22 Nokia Mobile Phones Ltd Multimediaeinheit
DE19963155A1 (de) * 1999-12-24 2001-06-28 Mannesmann Vdo Ag Audio- und/oder Videosystem, insbesondere für Kraftfahrzeuge oder Heimanwendungen
EP1155915A2 (fr) * 2000-05-18 2001-11-21 BECKER GmbH Equipement électronique à boítier ou support et support ou boítier pour ses modules

Also Published As

Publication number Publication date
EP1545934A1 (fr) 2005-06-29

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