WO1993018594A1 - Systeme telephonique de controle - Google Patents

Systeme telephonique de controle Download PDF

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Publication number
WO1993018594A1
WO1993018594A1 PCT/FI1993/000092 FI9300092W WO9318594A1 WO 1993018594 A1 WO1993018594 A1 WO 1993018594A1 FI 9300092 W FI9300092 W FI 9300092W WO 9318594 A1 WO9318594 A1 WO 9318594A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
monitoring
code
transmitting
units
Prior art date
Application number
PCT/FI1993/000092
Other languages
English (en)
Inventor
Jorma Romunen
Matti Kangas
Original Assignee
Fonel Oy
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 Fonel Oy filed Critical Fonel Oy
Publication of WO1993018594A1 publication Critical patent/WO1993018594A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • 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
    • G08B25/06—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 power transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0291—Door telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/106—Adaptations for transmission by electrical cable for domestic distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/108—Adaptations for transmission by electrical cable the cable being constituted by a pair of wires
    • 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
    • H04N7/186—Video door telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5441—Wireless systems or telephone

Definitions

  • the invention relates to a monitoring system for buildings and other restricted areas, utilizing the electrical network an comprised of at least one transmitting unit and at least one monitoring unit, whereat there are transmitting elements in each unit for transmission of information, such as speech or other information, over the electrical network to another unit and, correspondingly, receiving and iden ⁇ tification elements to recognize and repeat transmitted information and in one unit, at least, elements to form and transmit the signal of an identifiable answer-back-code to the electrical network and, in the other unit, elements to ident ⁇ ify the answer-back-code and to interconnect the units, where ⁇ at at least the monitoring unit is detachably connectable to the electrical network.
  • a monitoring phone system for staircases especially designed for appartment houses and comprising a central unit and individual units for each appartment and where the signals between the units travel along the electrical network of the building.
  • the unit in each appartment is furnished with an answer-back- code and, accordingly, on pressing a key, an answer-back-code of a certain appartment unit starts off from the central unit to the electrical net, whereat only the appartment unit with the right answer-back-code responds to the signal coming from the central unit and alarms in that special appartment.
  • this construction is quite useful and easy to install.
  • it is easy and simple to make modifications in it.
  • this system is not applicable, as such, a public monitoring and control phone system to different places, as it allows contact only between the individual units and, correspondingly, transmits the door-opening signal from the appartment unit to the central unit.
  • the object of this invention is to introduce a monitoring phone system, by means of which the above described disadvantages can be eliminated and by means of which differ ⁇ ent monitoring, passage control and other control operations can be easily carried out and the system itself is easy to install and modify along with the change of circumstances for monitoring, staircase phone control and other purposes of control.
  • the aim to enable above facilities by means of this inventional monitoring phone system is characterized in that the system comprises a camera equipment connected to a trans ⁇ mitting unit to form and transmit by means of the transmitting unit an electric picture signal along the electrical net and that in at least one monitor unit there are receiving elements to receive the picture information transmitted in electrical form along the electrical net and a display unit to show picture information in the monitoring unit.
  • the actual concept of the invention is that different transmitting and monitoring units are used in a way allowing connection of a camera to each transmitting unit in order to generate a picture signal in electrical form and, correspond ⁇ ingly, the existens of display monitors in the monitoring units, whereat the picture and speech signal of a certain transmitting unit can be transmitted over the standard electrical net in the building to the monitoring unit and seen there the moment the talking contact switches on.
  • several transmitting units and several monitoring units can be utilized to open doors or carry out other functions over whichever transmission unit.
  • several transmitting units can be utilized, whereat one or more monitoring units can be furnished with a control unit, by means of which it is possible to transmit a call signal to certain transmitting units by turns, to one at a time, in the same way as the transmitting unit can send a call signal to the monitoring unit, whereby it is possible, with a single monitoring unit, to look systematically and in the way wanted, at the picture displayed by different transmitting units with ⁇ out anyone at the transmitting unit activating the keys or in any other way transmitting a call signal to the monitoring unit.
  • Fig. 1 is a schematic general view of a monitoring phone system in an appartment house with seven appartments
  • Fig. 2 is a schematic front view of a monitoring unit of a monitoring phone system
  • Fig. 3 is a block diagram of the function principle of a transmitting unit in a monitoring phone system
  • Fig. 4 is a block diagram of the function principle of a monitoring unit in a monitoring phone system
  • Fig. 5 is a guarding and monitoring application of a monitoring phone system.
  • FIG 1 shows schematically a building, for instance an appartment house, with many individual appartments or other rooms.
  • the house has a monitoring phone system as per the invention, furnished with a keyboard 2 at the entrance door l.
  • keyboard 2 either each key contains the information to which room or appartment Al - An the information is to be sent by each respective key, or the keys are numbered for instance according to the number of the staircase or the floor, whereby the selection is made by dialling several keys.
  • Keyboard 2 for instance, is coupled to transmitting unit 5 which is connected to the electrical net 4 of the building by means of a feeble current cable 3.
  • Keyboard 2 can either be an in ⁇ dependent keyboard or it can be firmly coupled to the trans ⁇ mitting unit 5.
  • Activation of a certain key in keyboard 2 generates a signal in transmitting unit 5, whereupon, depending of the coding pattern, at pressing one single key or several keys, the transmitting unit forms a code signal in accordance with the keys activated.
  • Each appartment Al - An seven of which are shown in the figure, has an answer-back- code of its own.
  • the signal code generated by activation the respective key, is transmitted by the transmitting unit 5 to the electrical net 4.
  • the monitoring unit 8 in an appartment is plugged to a contact box in the appartment, whereupon the monitoring unit is ready to function as a part of the monitoring phone system and constantly ready to receive signals from the transmitting unit 5, in accordance with the code key set into it, and independent of in which part of the building, for instance an appartment house, said plugging to the contact box has been made, under reference number 8 a part of the monitoring unit adapter cable to the contact box 7 is shown in the figure.
  • each monitoring unit 8 tests whether said code signal is the same as the code key programmed into it. If that is the case, the monitoring unit 8 gives alarm and if, in the monitoring unit shown in figure 2, the opening key 10 of the line is pressed, talking connection opens up bet ⁇ ween the loudspeaker at the keyboard 2 (fig. 1) and the moni ⁇ toring unit 8.
  • the talking connection functions by the so called hands-free method, i.e. no headphones are needed.
  • the owner of the monitoring unit 8 would like to get into the caller over key ⁇ board 2 through the entrance door l, he presses the monitoring unit key 11 and the monitorig unit 8 will send a door opening signal over the electrical net 4 to the transmitting unit 5, from where the signal is transferred along cabel 12 (fig. 1) to the electric lock in entrance door 1.
  • the talking connect ⁇ ion between monitoring unit 8 and keyboard 2 can be cut off with the switch-off key 13 in the monitoring unit in figure 2.
  • an automatic connection cut-off is coupled to the moni ⁇ toring system, if in the monitoring phone system, after the described connection, no speech or other messages are trans ⁇ mitted at a certain time of adjustable length.
  • FIG. 2 shows light emitting diodes (LEDS) under reference numbers 15, 16, 17, 18 and 19 in the monitoring unit 8.
  • Reference number 14 shows the combination of loudspeaker and microphone (speaker microphone) in the monitoring unit 8.
  • Reference number 20 shows for instance a 4" videophone monitor in an appartment, from which the area around the entrance door (gate) or the person who wants to enter can be seen.
  • the transmitting unit camera 21 starts off, whereby the signal, containing the camera picture in electrical form, is connected to the talking signal and trans-mitted simultaneously with the talking signal to the monitoring unit, which has a picture monitor 20.
  • the user of the monitoring unit can then see who is or who are in the vicinity of the transmitting unit and decide thereupon whether he will or won't open the door.
  • the monitoring unit can also be equipped with an extra key, to generate, at first, picture connection without talking connection, which means that talk ⁇ ing connection can be switched on only after having noted whether the persons near the transmitter unit are people whom one is eager to speak with, in the first place.
  • the central unit and the door unit are illustrated in figure 3 as a unity, i.e. without the multi-pin signal cable between them) .
  • Block 46 is a mains transformer, block 47 the regulators, which there are two of.
  • the coupling unit 25 comprises coupling condensators, a coupling trans ⁇ former and many relays for coupling the central unit to the electrical net in the building, i.e. three mains relays and their three control relays plus one coupling relay.
  • the coupling means of transmitting/receiving is block 39, either for sound transmission or reception. The picture is trans ⁇ mitted when connection has got switched on and till it is switched off.
  • the videphone camera 21 is at the entrance door in the door unit and records the picture of those wanting to enter.
  • Block 30 is a control of a videphone camera 21, comprising the operation voltage supply to the camera, synchronizing pulses and signal processing.
  • Block 37 is a picture carrier generator 95...125 kHz.
  • the picture carrier is modulated by modulator 3 with the signal from the control unit 30 of the videophone camera 21. 3 and 10 can be substituted by a voltage controlled oscillator VCO.
  • the coupling element 32 cuts off or allows picture carrier advancement.
  • Blocks 33 are band-pass filters filtering off the harmonics and letting through the side bands required by the picture carrier and signal transmission.
  • Block 34 is a carrier summing amplifier.
  • the modulat ⁇ ed picture carrier and modulated sound carrier are summed at this stage before they are taken to the band-pass filter 33 and carrier-frequency amplifier 35.
  • the modulated picture carrier and sound carrier are amplified to a capacity suffic ⁇ ient enough for feeding into the electric net over stages 33, 39 and 25.
  • the loudspeaker microphone 51 functions as a microphone upon transmission.
  • the coupling element 52 connects the voice signal during transmission from the loudspeaker microphone 51 further to the band-pass filter 33, which lets the sound side band further to the sound amplifier 40. With the sound ampli ⁇ bomb 40 the week microphone signal is amplified before modul ⁇ ator 42 to be strong enough.
  • the connecting device 41 lets the sound signal in speech situtation to modulator 42.
  • Block 38 is a sound carrier generator 95...125 kHz.
  • modulator 42 the sound carrier is modulated by the talking signal (38, 42 can be substituted by a voltage controlled oscillator).
  • the coupling device 43 lets the modulated sound carrier to the band-pass filter 33 and further to the carrier-frequency amplifier 34.
  • Block 54 is a sound or pulse identifier, detector, by means of which the address bits (pulses) sent by an appartment unit of the resp. staircase can be identified from the carrier at this stage when the connection is started and during manipulation.
  • Block 53 is the sound terminal stage, where the week sound signal is amplified to an extent sufficient for the loudspeaker microphone.
  • the coupling element 52 lets the sound signal to the microphone 51 which has the function of a loudspeaker.
  • the pulse distinction stage 60 distinguishes the pulses and the door opening signal from the sound.
  • the serial/parallel transformer 59 transforms received serial bits to parallel bits.
  • Block 57 is an address code switch, by means of which the address of respective staircase is set.
  • Block 58 is a reference stage, which com ⁇ pares the received bit pattern with the one determined by the address code switch. If they are equal, the connection can be opened.
  • the control logic receives room information from other blocks and controls other stages itself.
  • the outlet relay closes for ab. 10 sec. when the central unit receives a door- opening signal from an appartment unit. Thereby two closing switches of the outlet relay are closed and thereupon, for instance, 24 V 50 Hz switches on to the stairway entrance door lock or the electric counter plate.
  • Keyboard 48 Each appartment has its own key in the door unit at the entrance door. The numbering of keys corres ⁇ ponds to the numbering of the appartments in the staircase.
  • the keyboard logic 49 is in the door unit and the central unit. It generates an address bit pattern on pressing the key and makes the central unit transmit said address bit pattern, modulated in the carrier, to the electric net in the building.
  • the keyboard logic has for instance also an 8 x 8 key matrix.
  • Block 50 is a 3 x 8 phase code switch. Here information is coded, to which electric net phase the said appartment is con ⁇ nected.
  • the appartment unit can transmit or receive sound. Instead of speech, the appartment unit can also transmit a door-opening signal to the central unit, by means of the outlet relay in which the opening of the entrance door can be controlled.
  • the appartment unit can receive, constantly, picture signals and the picture of the one who wants to enter is thus visible uniterruptedly in the appartment unit videophone monitor 20 regardless of if it is being spoken or not. Otherwise, the function is in principle the same as in the central unit.
  • the coupling element 66 comprises coupling con- densators and a coupling transformer for coupling the appartment unit to the electrical net in the building. It does not contain any relays, as does the corresponding block of the central unit.
  • Block 61 is the control of the entrance door lock.
  • Block 62 is a sound carrier amplifier.
  • Block 63 is the videphone monitor control.
  • Block 64 is picture display.
  • the appartment unit is connected to the electric net of the house by contact plug 65.
  • the monitoring unit When connection has got switched on, the monitoring unit (from the appartment unit) sends at pressing the door-opening key a control signal, which in the transmitting unit (central unit) or any other controllable unit makes relay to close or a control operation to function.
  • Figure 5 shows a design, where a monitoring phone system is utilized for passage control in a building.
  • the figure shows a schematic illustration of a building 22 with many doors la -lc. Further, there is a fence 23 around the building with a gate Id. By each door and, accordingly, by the gate, there is a transmitting unit 5a - 5d, each of which is connected to the electric net 4, which is, among other, coupled to an illuminator 24 in the building and within the fence.
  • the whole area and all doors can be controlled with one single monitoring unit 8 in the building, which for instance a person staying in a certain room or moving for some reason on the area can transport along and, upon need, plug it to any outlet in the electrical net or, if staying in one place, keep it connected to the electric net.
  • the user of the monitoring unit 8 can switch on connection and see who is at the door or the gate and open it upon need. Likewise, if working as a guard, the said person can, with suitable intervals, connect the monitoring unit 8 to each transmitting unit 5a - 5d by turns and look what the situation is like on the outside.
  • the monitoring unit 8 is furnished with an extra device similar to the transmitting unit call-code former and, accordingly, each transmission unit is furnished with an extra device similar to the call-code identifier of the moni ⁇ toring unit, whereat the monitoring unit and the transmitting unit can send a call-code signal to one another and, vice versa, both units can answer the call signal.
  • the equipment according to the invention can be used and applied in many different ways, whereat, if suitably con ⁇ nected, the monitoring units can be used as intercoms without any picture connection between them.
  • the transmit ⁇ ting units can, if wanted, be so coupled that talking connect ⁇ ion between two units is possible without picture connection .
  • the transmitting unit can be furnished with a magnet card reader, by means of which the door can be opened with an opening code formed by the numbered keys of the transmitting unit keyboard.
  • the transmitting unit can connect to or build in the transmitting unit an infrared receiver, whereby, on using a code key that transmits infrared radiation coded in a certain manner, the door or gate can be opened through the transmitting unit or other required measures carried out, which do not include any talking connection but are merely controllable by the signals from the transmitting unit and the monitoring unit to operate certain functions, as for instance to swithch on the light, open the garage door, close it etc.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)

Abstract

Système téléphonique de contrôle utilisant un réseau électrique et destiné aux immeubles ou à d'autres enceintes à accès limité. Il comporte une unité émettrice (5) munie d'une caméra (21) et d'une unité de contrôle (8) possédant une unité de visualisation (20). Les unités communiquent entre elles au moyen de signaux envoyés au réseau électrique (4). L'image de la caméra est convertie en signal électrique puis en image visible sur le moniteur de visualisation (20). En outre, les autres informations, par exemple le dialogue entre les unités (5, 8) sont transmises par l'intermédiaire du réseau électrique.
PCT/FI1993/000092 1992-03-13 1993-03-15 Systeme telephonique de controle WO1993018594A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI921098 1992-03-13
FI921098A FI921098A (fi) 1992-03-13 1992-03-13 Oevervakningstelefonsystem

Publications (1)

Publication Number Publication Date
WO1993018594A1 true WO1993018594A1 (fr) 1993-09-16

Family

ID=8534921

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1993/000092 WO1993018594A1 (fr) 1992-03-13 1993-03-15 Systeme telephonique de controle

Country Status (3)

Country Link
CA (1) CA2131905A1 (fr)
FI (1) FI921098A (fr)
WO (1) WO1993018594A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726678A1 (fr) * 1995-02-09 1996-08-14 Bticino S.P.A. Interphone audiovisuel avec possibilité de choisir, de stocker et d'agrandir des parties de champs de vision
WO1996027990A1 (fr) * 1995-03-03 1996-09-12 Miguel Angel Fernandez Minaya Regard electronique pour porte d'acces a un logement et visionnement par television domestique
EP0901268A2 (fr) * 1997-09-04 1999-03-10 Ritto - Werk Loh GmbH & Co. KG Dispositif avec un interphone d'immeuble et une pluralité d'interphones d'appartement interconnecté par un bus à deux fils
CN1045239C (zh) * 1996-03-30 1999-09-22 重庆今诚科技开发有限公司 电力相间载波广播方法
EP1054563A1 (fr) * 1999-05-17 2000-11-22 Kyocera Corporation Vidéophone portable
EP2815948A1 (fr) 2013-02-06 2014-12-24 Comau S.p.A. Chariot pour transporter des conteneurs d'éléments ou de composants dans une installation industrielle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093706A (en) * 1958-02-25 1963-06-11 Electronic Measurement Systems Television system
GB2188219A (en) * 1986-03-20 1987-09-23 Musical Electronics Limited A video distribution system utilising transmission along mains supply wiring
FR2634338A1 (fr) * 1988-07-18 1990-01-19 Milly Lucien Procedes et materiels, a la fois perfectionnes, simplifies et economiques de television dite " par cables "
US4912553A (en) * 1986-03-28 1990-03-27 Pal Theodore L Wideband video system for single power line communications
WO1990004306A1 (fr) * 1988-10-13 1990-04-19 International Media Communications Plc Transmission de signaux

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093706A (en) * 1958-02-25 1963-06-11 Electronic Measurement Systems Television system
GB2188219A (en) * 1986-03-20 1987-09-23 Musical Electronics Limited A video distribution system utilising transmission along mains supply wiring
US4912553A (en) * 1986-03-28 1990-03-27 Pal Theodore L Wideband video system for single power line communications
FR2634338A1 (fr) * 1988-07-18 1990-01-19 Milly Lucien Procedes et materiels, a la fois perfectionnes, simplifies et economiques de television dite " par cables "
WO1990004306A1 (fr) * 1988-10-13 1990-04-19 International Media Communications Plc Transmission de signaux

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726678A1 (fr) * 1995-02-09 1996-08-14 Bticino S.P.A. Interphone audiovisuel avec possibilité de choisir, de stocker et d'agrandir des parties de champs de vision
WO1996027990A1 (fr) * 1995-03-03 1996-09-12 Miguel Angel Fernandez Minaya Regard electronique pour porte d'acces a un logement et visionnement par television domestique
ES2122849A1 (es) * 1995-03-03 1998-12-16 Fernandez Minaya Miguel Angel Mirilla electronica para puerta de acceso a vivienda y visionado en televisor domestico.
CN1045239C (zh) * 1996-03-30 1999-09-22 重庆今诚科技开发有限公司 电力相间载波广播方法
EP0901268A2 (fr) * 1997-09-04 1999-03-10 Ritto - Werk Loh GmbH & Co. KG Dispositif avec un interphone d'immeuble et une pluralité d'interphones d'appartement interconnecté par un bus à deux fils
EP0901268A3 (fr) * 1997-09-04 2009-06-24 Ritto - Werk Loh GmbH & Co. KG Dispositif avec un interphone d'immeuble et une pluralité d'interphones d'appartement interconnecté par un bus à deux fils
EP1054563A1 (fr) * 1999-05-17 2000-11-22 Kyocera Corporation Vidéophone portable
EP2509310A1 (fr) * 1999-05-17 2012-10-10 Kyocera Corporation Unité de vidéophone portable
EP2815948A1 (fr) 2013-02-06 2014-12-24 Comau S.p.A. Chariot pour transporter des conteneurs d'éléments ou de composants dans une installation industrielle

Also Published As

Publication number Publication date
CA2131905A1 (fr) 1993-09-16
FI921098A (fi) 1993-09-14
FI921098A0 (fi) 1992-03-13

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