EP0149569A2 - Überwachungssystem das unter mehreren Beobachtungsquellen umschaltet - Google Patents

Überwachungssystem das unter mehreren Beobachtungsquellen umschaltet Download PDF

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Publication number
EP0149569A2
EP0149569A2 EP85400007A EP85400007A EP0149569A2 EP 0149569 A2 EP0149569 A2 EP 0149569A2 EP 85400007 A EP85400007 A EP 85400007A EP 85400007 A EP85400007 A EP 85400007A EP 0149569 A2 EP0149569 A2 EP 0149569A2
Authority
EP
European Patent Office
Prior art keywords
switching
observation
surveillance system
priority
sources
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Withdrawn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
EP85400007A
Other languages
English (en)
French (fr)
Other versions
EP0149569A3 (de
Inventor
Edouard Blomme
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.)
Nouvelle Jules Verger Et Delporte Departement Blomme Automation Ste
Original Assignee
Nouvelle Jules Verger Et Delporte Departement Blomme Automation Ste
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 Nouvelle Jules Verger Et Delporte Departement Blomme Automation Ste filed Critical Nouvelle Jules Verger Et Delporte Departement Blomme Automation Ste
Publication of EP0149569A2 publication Critical patent/EP0149569A2/de
Publication of EP0149569A3 publication Critical patent/EP0149569A3/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras

Definitions

  • the present invention relates to surveillance systems that are installed in premises or other places, to detect the presence of intruders or observe break-ins, or more simply to keep track of individuals who have passed through.
  • these systems it is more particularly interested in those which comprise a plurality of observation cameras, intended to be judiciously distributed and positioned, and means for controlling a cyclic scanning of the different cameras. Its main aim is to avoid the loss of time caused by systematic cyclical and periodic scanning of the cameras and to increase the number and quality of the information collected.
  • the invention proposes a monitoring system of the type comprising a unit for managing information signals from a plurality of observation sources scanned in turn or in parallel, which is characterized in that it comprises a programmable switching unit, for determining an order of scanning of the observation sources, and means for controlling by priority the scanning of a particular observation source, in particular on detection of a corresponding event.
  • observation sources are mainly constituted by cameras or video recorders, sources of video signals which are explored and exploited individually under the control of the management unit.
  • this should not be seen as a limitation of the system of the invention.
  • this system can be used with all kinds of signal processing modes and event detection modes to be considered for each observation source.
  • We can for example provide visualizations or recordings on peripherals, the start-up of signals and remote controls, the operation on computer, for some, and for others, intrusion detectors, alarm sensors, or any electrical circuit in a loop which opens or closes when the event to be detected occurs, in particular an alarm.
  • the monitoring device essentially comprises a switching unit 1, comprising two self-switching matrices 2 and 3, and a management unit, the main body of which is a microprocessor 4, to which is associated a programmable read only memory (PROM) 5, which can be separated or integrated.
  • a switching unit 1 comprising two self-switching matrices 2 and 3
  • a management unit the main body of which is a microprocessor 4, to which is associated a programmable read only memory (PROM) 5, which can be separated or integrated.
  • PROM programmable read only memory
  • an input-output interface 6 has also been represented, through which the information coming in series from different alarm loops to be scanned, in order to be managed by the microprocessor, and control signals produced by the latter , to control for example the starting and stopping of a video recorder.
  • Each alarm loop includes a video camera which films a scene in the area it observes and the video recorder makes it possible to record, in series, for later viewing, the scenes observed by the cameras scanned successively.
  • the alarm loops were not shown individually. They are constituted in a conventional manner, each with an alarm detector on an electric loop circuit which opens or closes when the alarm detector is actuated and thus transmits alarm information to the microprocessor. Each loop is associated with a code which characterizes the alarm detector and which can also characterize a camera, according to a pre-established correspondence between alarm loops and cameras.
  • the switching unit is formed from self-switching matrices, which can be, for example, in the particular case described, matrices 2 and 3 of FIG. 1, of the type known under the trade designation MT 8804 from the American manufacturer Mittel .
  • the use of two conjugate matrices makes it possible to obtain eight information inputs El to E8 and eight outputs S1 to S8. Switching between the input channels and the output channels takes place automatically under the effect of serial control signals from the computer.
  • the succession of control orders is itself carried out according to three different diagrams which are selected by a priority order received by the microprocessor.
  • the inputs E1 to E8 of the switching unit admit to the matrices, by means of individual adjustable adaptation circuits 7, the various video signals coming from the surveillance devices, that is to say here, from eight cameras.
  • the signals obtained after switching on seven of the outputs, S1 to S7, can be sent to a control monitor or a video recorder displaying the state of all the switches, and possibly the corresponding images.
  • One of these outputs can also be used to view or record the scene captured by a priority camera selected by switching.
  • the eighth output is connected to the microprocessor 4 via a circuit 8 for shaping and synchronization.
  • FIG. 2 shows other elements incorporated in the management unit of the device.
  • an overlay device 9 which makes it possible to introduce, under the control of the microprocessor, into the output signals of the switching unit, indications which are superimposed on the images displayed. It is thus possible, for example, to embed the time at which an alarm occurs and a reference number of the camera then selected, in the corresponding video image.
  • a keyboard 11 allows manual input of information or commands. It can be used to modify the reference time for the insertion of the time indication. It can also be used to program the mie oprocessor of the cyclic switching command by relying on the parameters which are normally imposed by memory 5. It is used above all to modify the switching control diagram by manually introducing a priority command which determines the signal routing, based on a selection made by the user.
  • an auxiliary switch 12 receiving its control commands from the microprocessor 4, makes it possible to act on the cameras or the alarms of each loop, by selecting the one which is controlled according to the selection made by the switching unit.
  • Figure 3 will be understood by itself, it being specified that it illustrates how the device uses the orders of priority that it receives in the selection of the scanning patterns of the different cameras.
  • priority in switching is given first by a loop on which an alarm occurs, otherwise by the cyclic order imposed by the programmable memory, and otherwise by the command given manually on the keyboard. From the selection thus made, then depend the control orders transmitted to the switching unit, as well as those which control the overlay and the outputs of the auxiliary switch.
  • the start-up monitoring signal commands the resetting of the memories of the switching matrices (FIG. 4).
  • the corresponding reference code is memorized, with command to erase the memory of the switching matrices, and the synchronization of the video images is ensured (vertical synchronization).
  • the switching control signal is transmitted to a serial / parallel converter which transmits the logic states necessary for the operation of the switching.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Alarm Systems (AREA)
  • Burglar Alarm Systems (AREA)
EP85400007A 1984-01-17 1985-01-04 Überwachungssystem das unter mehreren Beobachtungsquellen umschaltet Withdrawn EP0149569A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8400645 1984-01-17
FR8400645A FR2558286B1 (fr) 1984-01-17 1984-01-17 Systeme de surveillance a commutation entre plusieurs sources d'observation

Publications (2)

Publication Number Publication Date
EP0149569A2 true EP0149569A2 (de) 1985-07-24
EP0149569A3 EP0149569A3 (de) 1985-08-21

Family

ID=9300184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400007A Withdrawn EP0149569A3 (de) 1984-01-17 1985-01-04 Überwachungssystem das unter mehreren Beobachtungsquellen umschaltet

Country Status (2)

Country Link
EP (1) EP0149569A3 (de)
FR (1) FR2558286B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996003005A1 (en) * 1994-07-15 1996-02-01 Isec Intelligent Security Ab A device at tv surveillance
WO2011109935A1 (en) * 2010-03-09 2011-09-15 Global Advanced Vision Ltd A surveillance system and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037250A (en) * 1974-08-22 1977-07-19 Mcgahan Everett G Video switcher
EP0028933A2 (de) * 1979-11-09 1981-05-20 Ascotts Ltd. Überwachungssystem
US4337482A (en) * 1979-10-17 1982-06-29 Coutta John M Surveillance system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037250A (en) * 1974-08-22 1977-07-19 Mcgahan Everett G Video switcher
US4337482A (en) * 1979-10-17 1982-06-29 Coutta John M Surveillance system
EP0028933A2 (de) * 1979-11-09 1981-05-20 Ascotts Ltd. Überwachungssystem

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FUNKSCHAU, no. 11, mai 1982, pages 53-56, Munich, DE; G. WILHELM et al.: "Videotechnik in Sicherheitsanlagen" *
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, vol. NS-29, no. 1, février 1982, pages 874-877, New York, US; J.L. SCHOENEMAN: "A microprocessor CCTV controller for safeguards applications" *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996003005A1 (en) * 1994-07-15 1996-02-01 Isec Intelligent Security Ab A device at tv surveillance
WO2011109935A1 (en) * 2010-03-09 2011-09-15 Global Advanced Vision Ltd A surveillance system and method

Also Published As

Publication number Publication date
EP0149569A3 (de) 1985-08-21
FR2558286A1 (fr) 1985-07-19
FR2558286B1 (fr) 1986-05-23

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Inventor name: BLOMME, EDOUARD