WO2000011872A1 - Procede de transmission pour les teleconferences, de surveillance de batiments, d'installations et analogues, et moyens auxiliaires pour la mise en oeuvre de ce procede - Google Patents

Procede de transmission pour les teleconferences, de surveillance de batiments, d'installations et analogues, et moyens auxiliaires pour la mise en oeuvre de ce procede Download PDF

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Publication number
WO2000011872A1
WO2000011872A1 PCT/DE1999/002552 DE9902552W WO0011872A1 WO 2000011872 A1 WO2000011872 A1 WO 2000011872A1 DE 9902552 W DE9902552 W DE 9902552W WO 0011872 A1 WO0011872 A1 WO 0011872A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmitter
sound
transmitted
signals
computer
Prior art date
Application number
PCT/DE1999/002552
Other languages
German (de)
English (en)
Inventor
Lothar Strolo
Original Assignee
Lothar Strolo
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 Lothar Strolo filed Critical Lothar Strolo
Priority to AU64643/99A priority Critical patent/AU6464399A/en
Priority to DE19981653T priority patent/DE19981653D2/de
Publication of WO2000011872A1 publication Critical patent/WO2000011872A1/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
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • H04N7/185—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source from a mobile camera, e.g. for remote control

Definitions

  • the invention relates to a method for the transmission of conferences, for monitoring buildings and systems, for quality control, for monitoring production processes and the like, and aids for carrying out the method.
  • Telephone lines are transmitted.
  • video cameras are also used, via which the current events can be monitored by a monitor in a central office and / or stored on video tapes by means of video recorders.
  • claim 1 is based on the fact that in a method for the transmission of conferences, for the monitoring of buildings and systems, for quality control, for monitoring production processes and the like Image and / or sound pattern is converted into electrical signals by a recording device, the electrical signals are transmitted to a transmitter in a wired manner, are transmitted wirelessly to a receiver by the transmitter and are transmitted to a computer in a wired manner converted into electrical signals by the receiver for further processing .
  • a given situation is stimulated in a proven manner by suitable cameras, in particular video cameras and corresponding microphones, which are part of the recording devices.
  • Image and sound patterns can be converted into a common signal, for example by a video camera with an integrated microphone, which signal is then transmitted to a transmitter by cable.
  • This electrical signal is then implemented by the transmitter and transmitted wirelessly to a receiver.
  • the wireless transmission means that the recording device, combined with the transmitter, can be used very mobile. For example, it is possible for an operator to carry the receiving device and transmitter, which are then, for example, battery-operated.
  • Cable to differentiate it from the term wireless is used. These are not necessarily to be understood as separate cables, but can also represent conductor tracks of a circuit board such cables, for example, if corresponding components are combined, here e.g. the computer would be designed with an integrated receiver.
  • a computer for example also a personal computer, is suitable, after being equipped with appropriate programs, for further processing the electrical signals corresponding to the image and / or sound pattern for almost any purpose. It is initially thought that the electrical signals for data transfer via data lines are digitized accordingly and made capable of being recorded.
  • such further processed signals can be stored very compressed in suitable mass storage devices, for example on hard disks, streamers or the like.
  • it can also be considered to merely store signals corresponding to a change in image and / or sound patterns. That is, as long as an image and / or sound pattern remains unchanged, this pattern is saved once and only when there is a change, for example also with an overlay Time, saved. If the picture and / or sound pattern then remains constant, the recording is ended and only started again when the change is made again.
  • Corresponding routines are comparatively easy to program, since the working frequency of modern computers is regularly much higher than, for example, the clock frequency of production devices.
  • a particularly preferred method is by a sound card assigned to the computer for the generation of
  • Sound signals characterized, further by a second transmitter assigned to the receiver, to which the generated sound signals are transmitted in a wired manner, by a second receiver assigned to the transmitter, to which the sound signals are transmitted wirelessly by the second transmitter, and by a reaction device that transmits the sound signals from the second transmitter are transmitted by cable.
  • a reaction device that transmits the sound signals from the second transmitter are transmitted by cable.
  • the transmitter and the assigned second receiver or the receiver and the assigned second transmitter can be designed in such a way that they use common assemblies. As a result, only one audio or sound signal can be sent or received.
  • the recording device can also consist of a video camera with an integrated microphone, it is preferred that the image and sound pattern be converted and transmitted separately into a video signal and an audio signal.
  • This has the advantage that the signal-to-noise ratio is comparatively large can be held.
  • the bandwidth can also be kept low, in particular in the case of wireless transmission.
  • this measure has the great advantage that the audio signal can carry control signals, for example for the recording device. With suitable servos it is then possible, for example, to pivot, zoom or the like of a permanently installed video camera, which can be particularly useful in monitoring tasks.
  • a preferred variant provides that the recording device has a speech-hearing device for sound recording and sound reproduction, which is operated in particular in a duplex mode.
  • remote monitoring of a production is then possible, for example, in which an operator, equipped with a camera and the speech-hearing device, monitors a production process.
  • a far-away observer for example a manager or engineer, can receive the information sent from the computer over a data network with his own computer and make it visible or audible again.
  • he is able to give instructions to the operator via the speech-hearing device, or the operator is also able to acoustically inform the observer of special features.
  • the acoustic correspondence is expediently carried out in duplex mode, which allows simultaneous speaking and listening.
  • the computer can be combined with the transmission / reception devices assigned to it to form a unit. There is therefore an extremely flexible device for carrying out the method according to the invention
  • a computer In addition to the data transfer or the storage of data, a computer is preferably designed such that it compares the further processed video and / or audio signal as an actual pattern with stored, predefinable patterns.
  • the computer can be the computer sending the data or it can also be the remote computer receiving the data.
  • Such stored patterns can characterize a multiplicity of situations which the computer then recognizes and to which it can react in each case with a predetermined routine. In particular, he can react with an alarm signal if the actual pattern does not match a predefined, stored pattern.
  • a predetermined routine In particular, he can react with an alarm signal if the actual pattern does not match a predefined, stored pattern.
  • Monitoring or the like can be specifically provided so that the computer reacts to changes in the further processed video and / or audio signal, for example by an alarm signal or else according to another programming.
  • the computer compares the signals or signals with stored error patterns in the event of a deviation of the further processed video and / or audio signal from a target pattern, and that if the actual pattern matches the error pattern reacts with a program routine corresponding to the error pattern. Typical errors, for example in a production process, can thus be counteracted automatically.
  • wireless transmission can take place in a very interference-free manner in an infrared band.
  • a radio transmission is expedient over greater distances, with frequencies less than or equal to 2.3 GHz.
  • the upper limit of the frequency band is generally approved for the operation of radio systems.
  • lower frequencies are more expedient, particularly in industrial companies, since they are more reliable.
  • Recording device for image and / or sound for converting a predetermined picture and / or sound pattern into electrical signals is provided and further a transmitter to which the electrical signals are transmitted by the recording device via cable, a receiver to which the electrical signals are transmitted wirelessly by the transmitter and a computer to which the electrical signals from the receiver are transmitted via cable for further processing.
  • a particularly preferred embodiment of the device according to the invention has a sound card assigned to the computer for generating sound signals, further a second transmitter assigned to the receiver, to which the generated sound signals are transmitted by cable, and a second receiver assigned to the transmitter, to which the sound signals are transmitted wirelessly by the second transmitter, and ultimately a reaction device to which the sound signals are transmitted by the second transmitter via cable.
  • the reaction device is, for example, a sound reproduction device, for example a loudspeaker, headphones or the like, an acoustic two-way connection can be established without restriction between, for example, a far-away observer and an operator, for example a video camera, for converting image signals.
  • the reaction device can include, for example, servos, which by suitable Tone signals the control signals are controlled according to the desires of the observer.
  • This can also be adjusting means for the video camera or the video camera itself, which, for example, adjusts the focal length, image brightness or the like in a manner controlled by such audio signals.
  • the device In practice, it has proven to be expedient for the device to be designed at least in two channels for separate conversion and transmission of image and audio signals. If the transmission of sound signals to a reaction device is ultimately intended, the device is to be designed in three channels. Also preferred is the possibility of still transmitting a second video signal and / or audio signal from the recording device.
  • the receiving device is mobile.
  • the recording device, reaction device and transmitter with if necessary.
  • second receiver operated independently of the network. Batteries or come regularly for the energy supply
  • the recording device has a video camera and a specially designed combined speech-hearing device.
  • a speech-hearing device for example in the form of headphones and a microphone attached to these headphones on a snake neck or in the form of a larynx microphone, allows simple communication between the observer and, for example, the person operating the camera, who then has both hands available for this operation .
  • Peripheral devices transmitters, receivers, accumulators, antennas and the like are expediently accommodated in a belt or backpack.
  • the transmission means and / or the computer is protected against electromagnetic influences.
  • EMC electronic devices can be damaged by, in particular, short-wave radiation. This is excluded by appropriate shielding of the devices, for example by metallic housings or the like.
  • the recording device consists here, for example, of a video camera 1 and a microphone 2, which is arranged on a headphone 4 by means of a gooseneck 3 or the like. Both the video signal from the video camera 1 and the audio signal from the microphone 2 are transmitted to a transmitter 7 via cables 5, 6. Another input 8 for the conversion and transmission of video signals is not assigned here.
  • the number of transmission channels which is limited to three here, can be further increased, for example, for the implementation and transmission, for example, of data that can be called up from a computer.
  • the video camera 1 and the microphone 2 are converted and transmitted wirelessly from the transmitter 7 to a receiver 9, which takes place in an infrared band or preferably by means of radio waves, frequencies below or equal to 2.3 GHz being preferred.
  • the receiver 9 converts the wireless signals again and supplies electrical signals to a computer 10 for further processing.
  • the video input VIN2 of a video card 11 of the computer 10 is connected to an output VOUT of the receiver 9 via a cable 12.
  • the audio signal is applied from an output LO of the receiver 9 via a cable 13 to an audio input LI of the video card 11.
  • the computer is able to process these input signals in almost any manner, for example in such a way that they can be fed into the ISDN network of DeutscheInstitut via a suitable network card 14 via a suitable, conventional connection. According to the design of such a network card 14
  • Feeding into other networks, with other protocols etc. is also possible.
  • a far-away observer is thus enabled to use a further computer, in particular also a personal computer, to determine the predetermined image and / or sound patterns which are generated by the
  • Video camera 1 and / or the microphone 2 are recorded without significant loss of time to receive and track.
  • the computer 10 is further provided with a sound card 15 which is capable of generating sound signals according to a digital code.
  • a digital code can also come from a network and can thus give a far-away observer, for example, acoustic instructions, which can then also be called up again in acoustic form via the computer 10.
  • the sound signal is transmitted via a cable 19 to a reaction device, here a loudspeaker 20 of the headphone 4.
  • a reaction device here a loudspeaker 20 of the headphone 4.
  • the reaction device with servos or the like and sound signals as control signals
  • Control device for the video camera 1 can also be operated, for example.
  • the second transmitter 17 or the second receiver 18 is designed independently of the receiver 9 or the transmitter 7, unrestricted duplex operation is possible, i.e. can be spoken or heard on the audio channels at the same time, indicated by the double arrow 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)

Abstract

Pour que l'on obtienne un procédé de transmission pour les téléconférences, de contrôle de qualité et analogue qui puisse être mis en oeuvre de la façon la plus polyvalente possible et en particulier de façon mobile, un modèle prédéterminé d'image et/ou de son est transformé, par un dispositif receveur (1, 2), en signaux électriques, les signaux électriques sont transmis à un émetteur (7) par câble, transmis sans fil, sous leur forme transformée, de l'émetteur (7) à un récepteur (9) et transmis, de nouveau sous la forme de signaux électriques, par câble, du récepteur (9) à un ordinateur, pour y subir un traitement. L'invention concerne également des moyens auxiliaires permettant la mise en oeuvre du procédé, en particulier un dispositif de transmission.
PCT/DE1999/002552 1998-08-21 1999-08-17 Procede de transmission pour les teleconferences, de surveillance de batiments, d'installations et analogues, et moyens auxiliaires pour la mise en oeuvre de ce procede WO2000011872A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU64643/99A AU6464399A (en) 1998-08-21 1999-08-17 Method for transmitting conferences, the surveillance of buildings, facilities and the like and means for implementing said method
DE19981653T DE19981653D2 (de) 1998-08-21 1999-08-17 Verfahren für die Übertragung von Konferenzen, für die Überwachung von Gebäuden und Anlagen und dergleichen, sowie Hilfsmittel zur Durchführung des Verfahrens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838049 1998-08-21
DE19838049.6 1998-08-21

Publications (1)

Publication Number Publication Date
WO2000011872A1 true WO2000011872A1 (fr) 2000-03-02

Family

ID=7878309

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/002552 WO2000011872A1 (fr) 1998-08-21 1999-08-17 Procede de transmission pour les teleconferences, de surveillance de batiments, d'installations et analogues, et moyens auxiliaires pour la mise en oeuvre de ce procede

Country Status (3)

Country Link
AU (1) AU6464399A (fr)
DE (1) DE19981653D2 (fr)
WO (1) WO2000011872A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9406178U1 (de) * 1994-04-14 1994-06-09 Nord Systemtechnik Kanalinspektionsvorrichtung
US5406324A (en) * 1992-10-30 1995-04-11 Roth; Alexander Surveillance system for transmitting images via a radio transmitter
WO1997041686A1 (fr) * 1996-05-01 1997-11-06 Tvx, Inc. Systeme de securite pour plate-forme mobile se deplaçant sur le sol
WO1998053612A1 (fr) * 1997-05-23 1998-11-26 G.A. Braun, Inc. Procede et appareil permettant de surveiller des equipements et d'employer des conseillers au moyen de communications longue distance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406324A (en) * 1992-10-30 1995-04-11 Roth; Alexander Surveillance system for transmitting images via a radio transmitter
DE9406178U1 (de) * 1994-04-14 1994-06-09 Nord Systemtechnik Kanalinspektionsvorrichtung
WO1997041686A1 (fr) * 1996-05-01 1997-11-06 Tvx, Inc. Systeme de securite pour plate-forme mobile se deplaçant sur le sol
WO1998053612A1 (fr) * 1997-05-23 1998-11-26 G.A. Braun, Inc. Procede et appareil permettant de surveiller des equipements et d'employer des conseillers au moyen de communications longue distance

Also Published As

Publication number Publication date
AU6464399A (en) 2000-03-14
DE19981653D2 (de) 2001-07-12

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