EP0156752A1 - Steuerungs- und Überwachungssystem für Notausgänge - Google Patents

Steuerungs- und Überwachungssystem für Notausgänge Download PDF

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Publication number
EP0156752A1
EP0156752A1 EP19850460005 EP85460005A EP0156752A1 EP 0156752 A1 EP0156752 A1 EP 0156752A1 EP 19850460005 EP19850460005 EP 19850460005 EP 85460005 A EP85460005 A EP 85460005A EP 0156752 A1 EP0156752 A1 EP 0156752A1
Authority
EP
European Patent Office
Prior art keywords
exit
circuit
time delay
guard
guard station
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.)
Granted
Application number
EP19850460005
Other languages
English (en)
French (fr)
Other versions
EP0156752B1 (de
Inventor
Alain Raymond Verslycken
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.)
Constructions Electroniques de la Ferte Sous Jouarre Sa
Original Assignee
Constructions Electroniques de la Ferte Sous Jouarre Sa
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 FR8403448A external-priority patent/FR2560917B3/fr
Priority claimed from FR8412459A external-priority patent/FR2568927B1/fr
Application filed by Constructions Electroniques de la Ferte Sous Jouarre Sa filed Critical Constructions Electroniques de la Ferte Sous Jouarre Sa
Priority to AT85460005T priority Critical patent/ATE37623T1/de
Publication of EP0156752A1 publication Critical patent/EP0156752A1/de
Application granted granted Critical
Publication of EP0156752B1 publication Critical patent/EP0156752B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E05B65/108—Electronically controlled emergency exits
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • 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
    • G08B25/016—Personal emergency signalling and security systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0908—Emergency operating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/5155—Door
    • Y10T70/5159—Emergency exit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/60—Systems
    • Y10T70/625—Operation and control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7006—Predetermined time interval controlled
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7006—Predetermined time interval controlled
    • Y10T70/7011—Positively initiated delay interval
    • Y10T70/7023—Repeating interval

Definitions

  • the present invention relates to methods and devices for unlocking emergency exits. It also relates to a system for monitoring and controlling exits. emergency services installed in an establishment.
  • the emergency exits which are fitted out in establishments open to the public and which are intended for the rapid evacuation of the public in the event of an accident, such as a fire, are provided with instant opening devices which must unlock under the pressure of people who may be in a panic.
  • instant opening devices which must unlock under the pressure of people who may be in a panic.
  • the user comes to condemn these exits, rendering them unusable.
  • the opening of one of the emergency exits triggers an alarm which alerts the guarding station; this device somewhat limits their fraudulent use, but it is not entirely effective.
  • the subject of the present invention is a method allowing, in an establishment comprising at least one guard station, to control the emergency exits each provided with an unlocking member, without prohibiting their use in the event of panic or incident. It also relates to an unlocking device implementing the method.
  • the actuation of the unlocking member to open an emergency exit commands the sending of information to the guard station and the launching of a first timer during which the guard can, during a second time delay, condemn the opening of the exit considered, the opening of the exit being authorized, either at the end of the first time delay, or, in the event of intervention by the guardian, at the end of the second time delay .
  • the actuation of the unlocking member to open an emergency exit also commands a visual indication concerning the issue considered.
  • a third time delay is started, at the end of which an authorization to lock the door will be sent to the guard station.
  • a device implementing this method and comprising an electromechanical lock blocking the unlocking member, a sensor sensitive to an action on said unlocking member, a control line connecting each outlet to be checked at the station. guard and, at the guard station, an electronic central processing unit comprising a sensor monitoring circuit and a security circuit which releases the unlocking device when a fault occurs.
  • At least some exits may be far from the guard station and, in this case, a guard does not have time to go to the exit which has just made a call to check whether the door should be opened.
  • video surveillance devices are therefore provided which include a display device such as a screen for each monitored exit.
  • a display device such as a screen for each monitored exit.
  • these systems have drawbacks.
  • _the_ time during which the goalkeeper can intervene is very short, 8 seconds for example.
  • the screen keeper's search for the outcome that has just made a call can take a few seconds.
  • the solution requiring a display device associated with each door is costly.
  • the present invention relates to an exit control device whose cost price is low and which makes it possible to very quickly control the area surrounding an exit having sent an opening call.
  • a system in which the exits being out of sight of the guard station are each provided with a surveillance camera, in which a single display device is connected to the different cameras by a video selection unit transmitting the image supplied by one of the cameras to a video monitor and in which, upon reception of a call signal supplied by a sensor associated with an exit, the intervention of the guardian is subject to the selection by said sensor of the image supplied by the camera monitoring said issue.
  • the caretaker only has to look at one display device, such as a video monitor screen, and can immediately see what is going on, which has sent an opening call. So he can, during the short exit blocking delay, for example 8 seconds, see what is happening at this exit and decide whether to intervene, for example by triggering the second delay.
  • the short exit blocking delay for example 8 seconds
  • the exit control device further comprises a video processing module which deletes certain image areas and replaces them with messages without overlapping.
  • the messages which can relate to several exits, are permanently displayed on the display screen while the image of the door having sent a call and selected by the guardian only appears on the screen after this selection.
  • the central processing unit comprises, among these peripherals, a keyboard provided for each issue to be controlled with a selection key and indicators for signaling the state of the issue considered, as well as control keys provided of lights.
  • a keyboard provided for each issue to be controlled with a selection key and indicators for signaling the state of the issue considered, as well as control keys provided of lights.
  • An action on an exit is obtained by first pressing the selection button for this exit, then the appropriate command key.
  • the invention applies in particular to the monitoring of emergency exits each of which is provided with an unlocking member which, for example, is consti-killed by a bar called "panic" bar, a push on this bar unlocking, in principle, the issue and allowing its opening.
  • this unlocking member upon actuation of this unlocking member, actuation which constitutes a request to open the issue considered, information is sent to a guard station and this opening request triggers the launch of '' a short time delay during which the issue remains locked.
  • the guardian present at the guard station can intervene by condemning the opening of the exit considered and launching a second delay of greater duration.
  • This second time delay is provided, for example, to allow the goalkeeper to go to the outcome considered or to have a picture of it, to realize what is happening there.
  • the emergency exit is unlocked either at the end of the first aforementioned delay if there was no intervention by the guard, or at the end of the second delay if the caretaker intervened.
  • a third timeout of relatively long duration compared to the first timeout, is started at the same time as the outcome considered is unlocked.
  • an indication preferably audible and visual, is sent to the guard station to indicate an authorization to rearm the unlocking.
  • the guard can then, from the guard station, order the rearming of the locking member and the issue is then relocked when it returns to the closed position. If the goalkeeper does not intervene, the issue considered remains unlocked.
  • the actuation of the unlocking member triggers in the zone of the exit considered, at the same time as the launching of the first time delay, a signaling indicating to the public that the exit will be unlocked very quickly.
  • the opening request detection triggers a first time delay To, a signal to the public and an indication to the guardian.
  • the first time delay To is short-lived. It simply needs to be long enough to allow the guard to check for an incident requiring the opening of the emergency exit.
  • the time delay To can for example be of the order of 8 seconds.
  • the second time delay Tc can be longer since it is only started if the guard has checked that there is no immediate danger.
  • the time delay Tc must be chosen so that the goalkeeper has the material time to go to the exit in question to check what is happening there.
  • the third time delay Tf can be relatively shorter since it only triggers the authorization to rearm by the guard. It can for example be equal to 1 minute.
  • the invention allows the control, by a guarding device, of the use of emergency exits, while allowing rapid evacuation in the event of danger since the first time delay To during which the exit remains locked is very short duration.
  • the invention also relates to a device for implementing the method which has just been described.
  • This device is applicable to emergency exits provided with an unlocking member such as a panic bar whose action can be condemned by an electrically controlled lock, such as an electromechanical lock.
  • rectangle 1 designates the part of the device which is installed on each exit to be monitored, while rectangle 2 designates the part of the device which is installed at the guard station.
  • an electromagnetic lock 3 is provided, a sensor 4 which detects any action on the unlocking member, not shown, and a connection and signaling box 9.
  • the box 9 of part 1 is connected, by a command and control line 5, at the central part 2 which essentially comprises an electronic sub-assembly 6 and a central command and signaling unit 7 with, for example, a control console and visual and sound indicators.
  • a power supply 8 supplies the necessary electrical energy.
  • the connection and signaling box 9 is connected to the lock 3 and to the sensor 4.
  • Several parts 1 are normally connected by lines 5 to the central part 2.
  • the sub-assembly 6 serves as an interface between the central unit 7 and lines 5.
  • FIG. 3 shows, in more detail, the device of FIG. 2.
  • the lock 3 is shown diagrammatically by a relay 13 and the sensor 4 by the contacts 11 and 12.
  • the components 11, 12 and 13 are connected to the connection box 9 by means of a connection device 14.
  • a visual signaling member is provided in the form of an indicator 15.
  • the command and control line 5 has five conductors 51 to 55. It can consist of any electrical installation cable comprising at least five conductors.
  • the two conductors 51 and 53 are connected to two inputs of a detection circuit 16, the conductor 52 is connected to the output of an output relay 20 which makes it possible to supply the unlocking relay 13 , the conductor 54 is connected to earth to close the circuit of the relay 13, and the conductor 55 is connected to the output of a flashing relay 24.
  • the conductor 55 is connected to the conductor 54 by an indicator 15.
  • the lock or relay 13 is obviously positive security, that is to say that it opposes the unlocking of the issue as long as it is supplied.
  • the detection circuit 16 comprises, on the one hand, a safety circuit which detects the appearance of any defect in part 1 and which then controls the unlocking of the issue considered, and, on the other hand, means for detecting calls constituted by the actions exerted on the unlocking member. It can therefore deliver two signals, namely a "DEFECT" signal at its output 161 and a "CALL" signal at its output 162.
  • the outputs 161 and 162 are connected to the inputs of an OR gate 163 whose output is connected to the input of a delay circuit 17 known as the "watch dog" circuit.
  • the output 162 is connected to the input of a time base 18 which has three outputs 181, 182 and 183 providing the three timers To, Tc and Tf.
  • a double switch 19a, 19b represents a control member actuated by the guardian.
  • the outputs 181 and 182 are respectively connected to the fixed contacts of the contact 19b, the movable contact of which is connected, on the one hand, to a control input of the circuit 20 and, on the other hand, to a control input of the circuit 24.
  • the movable contact of the switch 19a is connected to ground, one of its fixed contacts being connected to a terminal 171 and the other to a terminal 172 of the watchdog 17. Passing from the state of rest to the working state, the switch 19b interrupts the time delay To and activates the time delay Tc, while the switch 19a cancels the action of the "watchdog" circuit 17.
  • the output 183 of the time base 18 is connected to an input of a reset circuit 21.
  • An output of the circuit 21 is connected to an input 221 of an audible indication member 22.
  • the time base 18 acts on the circuit of reset 21 which acts on the audible indicator 22, which indicates that it is possible to reset.
  • the sound indicator 22 has a clock input 222 connected to the time base 18 which delivers pulses to it at the audible frequency or at a subharmonic frequency thereof.
  • An output 184 of the time base 18 is also connected to an input of the circuit 24 to fix the flashing frequency of the latter, an output of which is connected to an indicator 25.
  • An output of the circuit 24 is also connected to an input of the circuit 22.
  • An output of circuit 17 is connected to an electronic safety switch 26 which has three outputs: one connected to an indicator light 27, the other to an activation input of circuit 20 and the last to a supply circuit 31 Indicator 27 indicates the presence of a fault.
  • An output of circuit 20 is connected to a device 28 for displaying the state of the lock, the device 28 having two outputs, one of which is connected to an indicator 29 and the other to an indicator 30, the indicators 29 and 30 indicating, respectively, that the lock is open or closed.
  • An output PF of circuit 28 is connected to an input of circuit 17 and to an input of time base 18.
  • the power supply 31 has its input connected to the circuit 8, FIG. 2, and distributes the voltages necessary for the operation of the various circuits of part 2.
  • An output of the power supply 31 is connected to the reset input of the time base 18.
  • the time base 18 also distributes the clock signals necessary for the different circuits.
  • Fig. 4 shows an embodiment of the connection and signaling box 9 and of the connector 14, connected to the contacts 11 and 12 and to the relay 13.
  • the connector 14 contains a connector part proper extending the wires 51 to 54, three resistors R1 , R2 and R3 and a diode Dl.
  • the first resistor R1 is mounted in series with the wire 51 connected to the working contact of 12.
  • Each of the two resistors R2 and R3 is mounted in parallel between the movable contact and the working contact of the switches 11 and 12, respectively.
  • Diode D1 has its cathode connected to wire 54 and its anode connected to wire 52. The rest contact of 12 is isolated while that of 11 is connected to wire 53.
  • Fig. 5 is the diagram of an embodiment of the detection circuit 16, associated with the circuits of part 1 which determine its operation.
  • the detection device 16 comprises a constant current generator 33 which supplies the wire 51 with constant current, and four operational amplifiers C1 to C4 mounted as comparators.
  • the non-inverting inputs of the comparators C1 to C4 are respectively connected to the intermediate terminals of a voltage divider with resistors mounted between the +15 V source and the ground.
  • the inverting inputs of the comparators C1 to C4 are connected to the common point of two resistors R4 and R5, the other terminal of R4 being connected to the output of 33 and the other terminal of R5 to ground.
  • the generator 33 delivers in a loop comprising the resistors R1, R2 and R3, of which R2 and R3 are shunted when the switches 11 and 12 close.
  • the current supplied by the generator 33 is constant, for example 20 mA
  • the closing of the switches 11 and 12 causes a significant drop in the impedance of the loop and as a result of its voltage.
  • This voltage is halved by means of the two resistors R4 and R5 and applied to the four comparators C1, C2, C3 and C4.
  • the threshold of comparator C3 is adjusted so that its output signal goes from state “1" (idle) to state “0" (active), which provides a call signal when 11 and 12 go from the rest state to the working state, shunting the resistors R2 and R3.
  • the wire 53 is connected by a conventional resistance circuit to the base of a transistor Q whose emitter is grounded and the collector connected to an input of an NI gate 37 whose output is connected at output 162.
  • the output of comparator C3 is connected to the other input of gate 37. The closing of 11 causes conduction of transistor Q and a second call signal is collected on the latter's collector.
  • Comparators C1, C2 and C4 have thresholds set to each detect a fault.
  • the threshold of comparator C4 is such that, in the event of a short-circuit in the loop, that is to say when the voltage applied to the comparator is very close to zero, the signal supplied by this comparator goes from the state " 0 "(normal) in state” 1 "(default).
  • the threshold of comparator C2 is adjusted so that in the event of a fault on only one of the two switches, that is to say a lower variation in impedance than in the event of the closure of the two switches, the signal of this comparator C2 goes from "0" to "1".
  • the threshold of comparator C1 is adjusted so that in the event of open loop due to a line break (the line impedance is very high), the output signal of this comparator C1 goes from "1" (normal) to "0" (default).
  • Three logic operators NI 34 and 35 and inverters 36, 38, 39 are used to provide a fault signal.
  • Fig. 6 shows an embodiment of the "watchdog” 17 and the safety switch 26.
  • the outputs 161 and 162 of 16 are connected to two inputs of a NI 40 door with three inputs which constitutes, with a second door NI 41 a memory switch.
  • This flip-flop 40-41 is reset to "0" by a signal Pf which is supplied when the issue is unlocked.
  • Circuit 17 essentially defines two highly reliable timers, the accuracy of which is not critical.
  • a first time delay is of a duration greater than the time delay To and a second time delay is greater than the time delay Tc, their values being for example 10 seconds and approximately 3.3 minutes.
  • These two timers are selected by the switch 19a which provides a choice of the 10-second timer on its upper output or the 3.3-minute timer on its lower output. Normally, these timers do not come to an end since they are respectively greater than the timers To and Tc, and the memory is reset to zero when the issue is unlocked, that is to say at the end of l either of the timers To and Tc.
  • the circuit 17 therefore only intervenes in the event of a fault and it then supplies, via one of the comparators 42 and 43, a signal to the safety switch 26 whose input is constituted by a comparator 44.
  • the appearance of a signal on one of the comparators 42 and, 43 and, consequently, at the input of the comparator 44 causes the operation of a high reliability relay 45, for example a flexible blade relay .
  • Relay 45 is activated when an internal fault occurs in the safety switch 26.
  • this safety switch uses two channels in a "cross-redundancy" arrangement. This assembly is based on the assumption that a monolithic integrated circuit which undergoes a serious fault will see all its operators simultaneously in fault either by presenting outputs in short-circuit, or outputs with high impedance.
  • connection and signaling unit 9 may include a loop in series in the relay circuit 13 and forming part of an accident detection device such as a fire detector, so that in the event of a fire the unlocking of the emergency exits is obtained immediately without intervention on the unlocking member and without intervention of the guardian.
  • this box 9 comprising relays for securely transmitting any call or any fault originating from one of the two leaves.
  • the device which has just been described comprises, for each outlet to be monitored, a connection and signaling box which contains an electromechanical device for blocking the unlocking member and the sensor, as well as possibly devices for visual and / or audible signaling.
  • a connection and signaling box which contains an electromechanical device for blocking the unlocking member and the sensor, as well as possibly devices for visual and / or audible signaling.
  • Each of the connection and signaling boxes is connected by a suitable cable to a central processing unit which comprises an industrial type microprocessor, that is to say a microprocessor particularly suited to the process, and an interface for 'issue 6 which advantageously controls several issues, for example four, of the video selection members associated with a certain number of cameras, eight in the example of embodiment, a video processing module which makes it possible to share the screen of the images and messages and a control panel consisting of a keyboard, with indicators.
  • each exit being out of sight of the guard station is provided with a surveillance camera which is connected to a single video monitor of the electronic assembly, via video selection bodies.
  • the control and signaling box supplies a lighting projector such as a mirror lamp when the issue in question has been selected by the operator on the control panel.
  • Fig. 7 shows the block diagram of a connection and signaling box intended to be installed at an exit which is out of sight of the guard station.
  • the electromagnetic lock 3 of FIG. 4 which is connected by wires 51 ′ to 54 ′ to a connection and signaling circuit 46 which replaces the circuit 9 in FIG. 1.
  • the wires 51 'to 54' are extended to the central processing unit by the wires 51 to 54.
  • the circuit 46 also includes a portion of coaxial cable 47 extending the output cable from a video camera 48 to the guard station.
  • Two mains supply wires 49, 50 are used to power the camera, as well as a lighting projector 56.
  • a sound announcer or buzzer 60 is also mounted, in the circuit 46, between a wire 61 and the ground.
  • An indicator 62 is mounted in parallel on the buzzer 60. The buzzer 60 and the indicator 62 are intended to warn people, who have requested the opening of the exit, that it will be delayed for a short time.
  • the circuit 46 may optionally include a loop connected in series with the electromagnet 13 and connected to a fire detection device so as to automatically control the opening of the exits in the event of a fire.
  • a central logic processing unit 7 comprising a microprocessor 63.
  • the microprocessor 63 is, for example, a circuit sold by the company INTEL under the reference 8031, which is particularly suitable for industrial tasks.
  • the microprocessor 63 is notably connected to two buses 64 and 65, the bus 64 serving as the address bus transmitting the most significant bits and the bus 65 serving either as the address bus transmitting the least significant bits, or the bus data.
  • a read-only memory 66 constituting the external program memory is connected to the bus 65.
  • the microprocessor 63 also has a serial input 67 and a serial output 68 intended for a data processing connection.
  • the data is sent or received via buffer circuits 69 or 70, respectively, these buffer circuits serving as adapters between TTL logic circuits and closed type logic circuits.
  • Fig. 9 shows an output interface circuit associated with the microprocessor 63. More particularly, the circuits of FIG. 9 are intended to be mounted on a printed circuit board and to serve four exits.
  • An input circuit 71 is provided for each issue to be processed, which receives the signals from circuit 46, FIG. 7, correspondent.
  • a multiplexing and detection circuit 72 performs the cyclical exploration of the four input circuits 71.
  • Fig. 10 shows the diagram of the address decoding circuit 74 connected to the bus 75.
  • the decoding circuit comprises two half-decoders 76 and 77 respectively supplying the address of the card on which the interfaces of FIG. 9 and the address of one of four channels for the writing of control signals in a circuit 73.
  • Circuit 77 has its activation input E connected by an inverter 79 to wire A9 of bus 75 and inputs A and B connected to wires A2 and A3 of 75.
  • One of the four outputs QO to Q3 of 77, according to l the address of the card is connected, on the one hand, to the input of an inverter 80 and, on the other hand, to an input of an NI gate 81.
  • the output of the inverter 80 is connected to the activation input E of the half-decoder 78.
  • the inputs A and B of 78 are respectively connected to the wires AO and Al of 75.
  • Each of its outputs QO to Q3 is connected to an input of an AND gate 82.
  • each output QO to Q3 is associated with a circuit 73 .
  • the other input of door 81 is connected to the read control wire RD while the second doors of doors 82 are connected to the write control wire WR.
  • the outputs of the doors 82 are respectively connected to the write control inputs of the circuits 73.
  • the output of the inverter 80 is connected by the wire 83 to the circuit 72 while the output of the door 81 is connected by the wire 84 to the same circuit 72.
  • Fig. 11 is the diagram of the multiplexing and detection circuit 72, FIG. 9.
  • the wires 51 and 160 of each input circuit 71 are respectively connected to the inputs VDO to VD3, on the one hand, and APDO to APD3, on the other hand, of an analog multiplexer 85.
  • the multiplexer 85 includes an X output extending the inputs 51 and a Y output extending the inputs 160.
  • the X wire is connected to the inverting input of a comparator 86 and to the non-inverting inputs of three comparators 87 to 89.
  • the non-input inverters of comparator 86 and the inverting inputs of comparators 87 to 89 are respectively connected to different terminals of a voltage divider.
  • Comparators 86 to 89 are fast comparators.
  • the register 90 constitutes an interface with the data input bus 91.
  • Fig. 12 is the diagram of a control circuit 73. It includes a memory or latch 92, the data input of which is connected to the data output bus 93.
  • the memory 92 has four outputs Q0, Q1, Q2 and Q3.
  • the outputs QO and Q1 are connected to the inputs of an AND gate 94 whose output is connected to the base of the power transistor TR1 whose emitter is grounded and the collector is connected to a terminal of a relay KAL whose the other terminal is connected to a 24 V source.
  • the output Q2 is also connected to the base of a power transistor TR2 whose collector circuit includes a relay KVR.
  • the output Q3 is connected to the base of a power transistor TR3 whose collector circuit includes a relay KCL.
  • the KAL relay has two working contacts KALI and KAL2, one connected to a voltage source TS, the other to ground.
  • the Ralis KVR has two working contacts KVR1 and KVR2, one connected to the working contact of KALI and the other to ground.
  • the KCL relay has a KCL1 working contact connected to the KAL1 working contact.
  • the working contact of KVR1 is connected to wire 52 and the working contact of KCL1 is connected to wire 55.
  • the working contact of KAL2 is connected to a voltage source of + 15V by a resistor of 10 kilohms; it is also connected to the SAL status output.
  • the working contact of KVR2 is connected to the source of + 15V by a resistance of 10 kilohms; it is also connected to an SVR status output.
  • the KVR2 break contact is connected to the control panel.
  • each transistor TR1 to TR3 includes two resistors in series with their common point connected to ground by a capacitor, for example of 10 microfarads. These capacitors serve as an analog timer of the "watchdog" type.
  • the isolated terminal of the capacitor associated with transistor TR1 is connected to the inverting input of a comparator 95, the non-inverting input of which is connected to a voltage divider polarizing it at 12 V.
  • the output of 95 is connected to memory reset input 92.
  • the QO output indicates that the memory is in service
  • the Q1 output that it is not out of service
  • the output Q2 actuates the relay KVR which is used to keep the latch 13 closed.
  • the output Q3 activates the KCL relay of the indicator 15, Fig. 3.
  • Fig. 13 illustrates the microprocessor control console. It has a classic keyboard with keys for selecting the issue number. In the example described, there are twenty exits.
  • the keys 96 include an indicator 97 capable of flashing. Each key 96 also has three associated indicators 98.1, 98.2 and 98.3 respectively corresponding to three possible states of an exit, ie "open", “closed”, or "under the intervention of a guard or vigil". The role of the function keys 99 to 103 will be described below. Note that an action on the status of an exit is executed by selecting an exit and pressing a command key. Finally, an on-off switch 104 is provided.
  • Fig. 14 shows the circuit for encoding the keys of the console.
  • the door identity keys are grouped by four to form five groups. In each group, the keys of the same rank are respectively linked together to anti-rebound circuits 105 each consisting of an RC filter and a trigger. The other terminals of the first group are connected to ground and those of the other groups individually connected to the base of a switching transistor 106 whose collector is connected to a logic assembly 107. The outputs of the four circuits 105 are encoded by a logic assembly 108 which also delivers a "valid" signal. The outputs of the assemblies 107 and 108 are connected to the inputs DO to D5 of a buffer memory 109 whose outputs are connected to the bus 91.
  • the terminals of the function keys are also connected, on the one hand, together to the base of a transistor 110 and, on the other hand, individually to a logic unit 111.
  • the collector of transistor 110 and the three outputs of the all 111 are connected to the inputs D5, D0, Dl and D2 of a buffer memory 112 whose outputs are connected to the bus 91.
  • the outputs of 108 and 111 are also combined to be connected to the interrupt wire 113 of the microprocessor. Note that the "valid" signal makes it possible to distinguish the exit number keys from the function keys.
  • Fig. 15 shows the control diagram of the console lights which has been described above. It can be seen that the door status indicators corresponding to its opening or closing state are supplied directly by a relay included in the interconnection and signaling box; buffer amplifiers 114 allow the complementary operation of the 2 "open” and “closed” indicators to be obtained for each outlet.
  • the LEDs included in the issue number keys and the LEDs signaling the VIGIL state are integral with an addressable locking circuit 115.
  • Each circuit 115 can turn on or off one of eight LEDs, each time it is addressed.
  • the other indicators can be in any state of on or off; eight successive addressing sequences are therefore necessary to obtain the desired signaling state of the eight LEDs controlled by this circuit 115.
  • the indicators incorporated in the function keys are also connected to an addressable blocking circuit 116.
  • a single display device for monitoring all the exits and the central processing unit is completed by a screen video processing module which makes it possible to remove certain image areas from the screen and replace them with message lines without overlapping the image and messages.
  • a screen video processing module which makes it possible to remove certain image areas from the screen and replace them with message lines without overlapping the image and messages.
  • the messages are written on the above lines in their order of arrival, that is to say that the message concerning the last event occurred is written in the first position on the reserved lines.
  • Fig. 17 indicates the installation of the video surveillance device.
  • the cameras 121 are grouped by eight and connected to a video selection member 122 which transmits the video signal from the selected camera to a video processing module 58 which controls the monitor 52.
  • Fig. 18 gives the diagram of the video selection device which makes it possible to select the image supplied by a camera from among eight.
  • This member essentially consists of an explorer with eight relays 124, each relay comprising two working contacts, one ensuring the selection of a camera, the other controlling the lighting projector associated with the camera.
  • the eight relays 124 are controlled via an addressable locking circuit 125.
  • Fig. 19 shows the block diagram of the video processing module. This module has two essential parts: an image switching circuit with messages and a message processing circuit.
  • the module 123 comprises, for the insertion of the messages, a synchronization separator 126 which delivers the "sync H" and “sync V” signals from the composite signal supplied by a camera.
  • the "sync V" signal at the end of the frame is used to reset the counters of the module 123 to zero. It is sent to a clock 127 stabilized by a phase locked loop.
  • the "sync H” signals are sent to the clock input of a line counter 128 whose output is connected to a decoder 129 whose output is connected to the control input of a video switch 130, which has its signal input which receives the composite signal.
  • Switch 130 can be a broadband analog gate.
  • the module 123 also includes a memory 131 associated with logic circuits to allow reading or writing in ASCII code.
  • a signal for inhibiting the display of messages is generated by a logic circuit 132 whose output controls a video mixer amplifier 133 whose output is connected to an input video of the switch 130.
  • the reading of the memory 131 is controlled by an address counter 134 which is reset to zero by the signal "sync V". This gives perfect synchronism with the camera providing the images. This synchronism is also obtained thanks to the slaving of the clock 127.
  • the input of 134 is connected to the output of an NI gate whose inputs are connected to the outputs of 129 and 127.
  • the characters are generated by an appropriate read-only memory 136.
  • the video processing module 123 also includes three-stage buffer circuits 137 to 139 which constitute interfaces between logic assemblies of different technologies.
  • the exit control system which has just been described has a limited capacity, since it comprises five interface cards with the exits, that is to say that it can manage twenty exits and two video selection bodies. . Thus, among the twenty exits there are four which are monitored directly from the guard station.
  • Fig. 20 illustrates such an assembly.
  • output control devices 140.1 to 140.n each comprising a microprocessor 63, output interface cards of FIG. 9, a video selection device 122 and a video processing module 123.
  • the various microprocessors 63 are connected by an asynchronous serial link connected to the input 67 and output 68, FIG. 8.
  • the various video selection devices are connected to the video monitors 144 of the master system 141.
  • a printer 145 is also provided.
  • the master system 141 can also include graphics peripherals and a voice system module for communicating messages.
  • a visual and possibly auditory signal occurs at the exit concerned, which indicates to this person that there is a wait at the opening and that his call is recorded.
  • an audible alarm alerts the guard, a message appears on the video screen in the video lines in the form "CALL FOR CALLS".
  • the key for the corresponding issue number flashes as well as the VISU and VIGIL function keys.
  • a new audible alarm occurs at the guard station and the new message is "DOOR XX REAR-MER", the key of the corresponding door number flashes, the key of REARM function flashes.
  • the guardian must then command the rearming of the door, that is to say that he successively presses the key of the exit considered, then the REARM function key.
  • the message on the screen becomes "DOOR XX CLOSED” and the keys of the issue number considered and the REARM function key no longer flash; in addition, the status indicator changes from "OPEN" to "CLOSED".
  • the second possibility is that the goalkeeper intervenes in this case, during the first delay of 8 seconds, he must be visually aware directly or on the monitor of what is happening at the end concerned. If the door is out of direct view of the security guard station, the security guard presses the VISU function key, the indicator light for this key changes to fixed lighting, the auditory alarm ceases, the message on the video screen becomes "PORTE XX CAMERA" and the image provided by the concerned camera appears on zone 120 of the video screen.
  • the supervisor has two possibilities. It may not intervene further and allow the normal cycle to run, that is to say after the first time delay, the issue is unlocked. However, the goalkeeper can also press the key of the issue number concerned. The message "PORTE VIGIL XX" appears on the screen in the bottom lines. At the end considered, the visual and audible alarms continue, but change rhythm to become slow. Furthermore, if the exit is equipped with a projector, it has been switched on. All this indicates to the person who requested the opening that we are taking care of him. A third, even longer, delay is then launched, for example 3 minutes, at the end of which the issue is unlocked and the reset call is immediately sent to the guard.
  • the invention allows the guard to intervene very quickly and to be aware of what happens after a call has been requested, since there is only one screen left. monitor. As soon as a call is made, the guard can press the corresponding exit number key and request the VISU, and he immediately obtains the picture of what is happening at this exit. This procedure is quick and can be carried out without problem within the short delay of 8 seconds.
  • the invention makes it possible to produce a device with a low cost price.
  • a master system which can moreover carry out conventional guarding functions such as parking lot surveillance.
  • a micro-contact can be provided in the door rebate which is only closed when the door is correctly and completely closed. This avoids situations where the door is not closed properly due to an object remained across it.
  • the microswitch can be in the fault loop.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
EP19850460005 1984-03-06 1985-03-05 Steuerungs- und Überwachungssystem für Notausgänge Expired EP0156752B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85460005T ATE37623T1 (de) 1984-03-06 1985-03-05 Steuerungs- und ueberwachungssystem fuer notausgaenge.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8403448A FR2560917B3 (fr) 1984-03-06 1984-03-06 Procede et dispositif de controle d'issue de secours
FR8403448 1984-03-06
FR8412459A FR2568927B1 (fr) 1984-08-07 1984-08-07 Dispositif de controle d'issues de secours, avec surveillance par video
FR8412459 1984-08-07

Publications (2)

Publication Number Publication Date
EP0156752A1 true EP0156752A1 (de) 1985-10-02
EP0156752B1 EP0156752B1 (de) 1988-09-28

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EP19850460005 Expired EP0156752B1 (de) 1984-03-06 1985-03-05 Steuerungs- und Überwachungssystem für Notausgänge

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US (1) US4652862A (de)
EP (1) EP0156752B1 (de)
CA (1) CA1231419A (de)
DE (1) DE3565331D1 (de)
ES (1) ES8608089A1 (de)

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WO1995027271A1 (en) * 1994-03-30 1995-10-12 Alarmagate Pty. Ltd. Security apparatus

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EP0237457A1 (de) * 1986-02-19 1987-09-16 Constructions Electroniques de la Ferté sous Jouarre, S.A. System zur Kontrolle und Überwachung der Ausgänge
WO1995027271A1 (en) * 1994-03-30 1995-10-12 Alarmagate Pty. Ltd. Security apparatus

Also Published As

Publication number Publication date
DE3565331D1 (en) 1988-11-03
EP0156752B1 (de) 1988-09-28
ES541006A0 (es) 1986-06-01
CA1231419A (en) 1988-01-12
US4652862A (en) 1987-03-24
ES8608089A1 (es) 1986-06-01

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