EP0190228A1 - Systemes de portillions - Google Patents

Systemes de portillions

Info

Publication number
EP0190228A1
EP0190228A1 EP85903792A EP85903792A EP0190228A1 EP 0190228 A1 EP0190228 A1 EP 0190228A1 EP 85903792 A EP85903792 A EP 85903792A EP 85903792 A EP85903792 A EP 85903792A EP 0190228 A1 EP0190228 A1 EP 0190228A1
Authority
EP
European Patent Office
Prior art keywords
zone
barrier
gate
persons
exit
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Withdrawn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
EP85903792A
Other languages
German (de)
English (en)
Inventor
Noel Carroll
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0190228A1 publication Critical patent/EP0190228A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B11/00—Means for allowing passage through fences, barriers or the like, e.g. stiles
    • E06B11/08—Turnstiles; Gates for control of entry or exit of persons, e.g. in supermarkets
    • E06B11/085—Turnstiles; Gates for control of entry or exit of persons, e.g. in supermarkets non-rotary or with a limited angle of rotation, e.g. 90°
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/614—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
    • E05F15/74—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects using photoelectric cells
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/224—Stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E05Y2201/236—Actuation thereof by automatically acting means using force or torque
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/30—Electronic control of motors
    • E05Y2400/3013—Electronic control of motors during manual wing operation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/32—Position control, detection or monitoring
    • E05Y2400/322—Position control, detection or monitoring by using absolute position sensors
    • E05Y2400/324—Switches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/32—Position control, detection or monitoring
    • E05Y2400/35—Position control, detection or monitoring related to specific positions
    • E05Y2400/354—End positions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/50—Fault detection
    • E05Y2400/502—Fault detection of components
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/80—User interfaces
    • E05Y2400/81—Feedback to user, e.g. tactile
    • E05Y2400/812—Acoustic
    • E05Y2400/814—Sound emitters, e.g. loudspeakers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/80—User interfaces
    • E05Y2400/81—Feedback to user, e.g. tactile
    • E05Y2400/812—Acoustic
    • E05Y2400/814—Sound emitters, e.g. loudspeakers
    • E05Y2400/816—Voice
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/80—User interfaces
    • E05Y2400/81—Feedback to user, e.g. tactile
    • E05Y2400/818—Visual
    • E05Y2400/822—Light emitters, e.g. light emitting diodes [LED]
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/40—Application of doors, windows, wings or fittings thereof for gates

Definitions

  • the present invention relates to gate systems for controlling entry or exit of persons into or from a zone, for example a supermarket.
  • a system for controlling entry or exit of persons to or from a zone comprising a power-operated barrier pivotal between a closed and open position, means for locking the barrier in its closed position, and meaHS for locking the barrier in its open position until a person has passed the barrier.
  • Figure 1 is a schematic plan view of a gate system in accordance with a preferred embodiment of the inven ⁇ tion;
  • Figure 2 is an end view of the gate system
  • Figures 3 and 4 are sections showing a gate operating mechanism
  • Figures 5 and 6 are, perspectively, a section and a plan of a locking arm of the operating mechanism
  • Figures 7 and 8 are views of two alternative forms of detector useful in the invention; and Figure 9 is an end view of a modified gate system.
  • a gate system com ⁇ prises two parallel barriers 2, 4, preferably formed by rails, defining an entryway into a zone, for example a shopping zone of a supermarket, the barriers 2, 4 being spaced by a distance sufficient to permit passage of a conventional shopping trolley. Movement through the entryway is subject to the control of a gate 6 which automatically opens and closes.
  • the operating mechanism for the gate is housed in a vertical column 8 mounted adjacent one of the barriers, the operating mechanism being actuated to open the gate 6 in response to detec ⁇ tion of the presence of a person or shopping trolley at the entrance 10 to the entryway by means of a 12 or other detector arrangement at the entrance.
  • a similar detector arrangement 14 is associated with the exit side 16 in order to detect the presence of a person attempting to enter the entryway from the exit side, and to actuate an alarm.
  • the gate operating mechanism which is housed within the column 8 is shown in Figures 3 to 6.and comprises an electric motor 20 mounted with its axis vertical and connected via a flexible coupling 22 to the input of a gear box 24.
  • the output of the gear box 24 is connected to the driving side of a coupling device 26; the driving side being linked by a lost-motion connection to the driven side of the coupling device.
  • the coupling device 26 which will be described in detail hereinafter, is associated with a locking device which locks the gate in its open and closed positions to prevent the gate from being pushed manually.
  • the driven side of the coupling device 26 is connected to the driving side of a spring- loaded clutch 28, the driven side of the clutch 28 being connected to a vertical drive shaft 30 which forms an integral part of the gate 6.
  • the vertical drive shaft 30 carries control cams 32 which operate switches 34 to control the operation of the driving motor 20 and the alarm.
  • the coupling device 26 comprises driving and driven plates 40, 42 respectively.
  • the driving plate 40 includes a driving pin 44 received within an arcuate slot 46 in the driven plate 42 whereby the driving plate 40 is able to move through a limited angular extent relative to the driven plate 42 whereafter the driving pin 44 entrains the driven plate 42 for movement with the driving plate.
  • the peripheral edge of the driving plate 40 is shaped to define a cam 48 which controls the operation of two locking arms 50, one arm serving to lock the driven plate 42, and thus the gate 6, in the closed position, and the other of which serves to lock the driven plate, and thus the gate, in the open posi- tion, only one of the two arms 50 being shown in the drawings, although both arms are identical.
  • Each arm 50 is pivotally mounted on a respective bracket 52 attached to the column 8, the end of the arm being movable substantially radially towards and away from the peri- pheral edge of the driven plate 42.
  • the end of the arm co-operates with a locking lug 54 projecting from the periphery of the driven plate 42 so as to act as an abutment for the locking lug when the gate is in its open or closed position whereby to prevent manual movement of the gate from its open to its closed posi- tion or vice versa unless the gate is pushed with sufficient force to disengage the clutch 28.
  • Each arm 50 carries a follower roller 56 which engages the cam 48 defined on the peripheral edge of the driving plate 40.
  • the appropriate locking arm 50 engages one of the two locking lugs 54 on the periphery of the driven plate 42, thereby locking the gate 6 against manual opening.
  • the driving motor 20 is actuated in the opening direction.
  • the initial movement of the driving plate 40 consequent upon actuation of the motor 20 results. in movement of the driving pin 44 along the slot 46 in the driven plate 42.
  • the second locking arm 50 engages the second of the two locking lugs 54 on the driven plate 42, to lock the driven plate 42, and thus the gate 6 against rotation in the reverse direction.
  • the open position of the gate 6 is defined by engagement of a stop lug 60 carried by a driving plate 62 of the clutch 28 with a fixed stop 64 carried by the column 8 of the mechanism.
  • the driving motor 20 remains actuated in the opening direc ⁇ tion in order to maintain the stop lug 60 firmly against the fixed stop 64 to thereby prevent oscillation of the gate.
  • the timer effects reversal of the current to the motor 20 in order to drive the motor 20 in the closing direction.
  • the initial movement of the motor results in movement of the driving plate 40 relative to the driven plate 42 until the driving pin 44 reaches the opposite end of the arcuate slot 46 and entrains the driven plate for movement.
  • the cam 48 of the driving plate 40 effects, via the follower roller 56 of the second locking arm 50, release of the second locking arm from the locking lug 54 thereby permitting the subsequent rotation of the driving plate and of the gate.
  • the alarm is automat- ically reset so that the alarm will operate if the gate 6 is held open by a person standing at the exit side 16 of the entryway.
  • the stop lug 60 on the clutch driving plate 62 engages a second fixed stop 66 carried by the column 8, and the switches 34 are operated by the cams 32 on the driving shaft 30 in order to de-energise the motor.
  • the first locking arm 50 latches behind the stop lug 54 on the driven plate 42 in order to prevent subsequent manual opening of the gate.
  • the clutch 28 comprises driving and driven plates
  • Resetting of the clutch is effected by returning the gate to its closed position whereon the roller 70 will, under the bias of the compression spring 72, snap back into engagement within the groove in the clutch driven plate 68.
  • a magnetically actuated clutching device 126 which is effective, when actuated, to move a plate 128, coaxially arranged with the output shaft from the gear box 24, into engagement with the underside of the plate 124 to frictionally lock that plate in position.
  • the previously described coupling device 26 is not required since, due to the frictional nature of the interlocking between the plate 124 and plate 128 when the gate is locked, it is possible to nevertheless move the barrier 6 against resistance provided by that frictional coupling (and by the inertia of the motor 20 through the gear box 24) so that the plates 124, 128 rotationally slide one over the other.
  • control of the gate is effected under influence of suitable detectors as aforedescribed and by use of micro switches establishing the open and closed positions of the gate. While in the described arrangements, detector means is used to detect passage of a person coming towards the gate in the wrong direction, for sounding and alarm, it is also possible to arrange that such alarm is, alternatively or additionally, actuated under the condition of actual movement of the gate 6 from its closed position to an open position.
  • the gate 6 may simply be arranged to pivot through 180°, such as to have a central closed position at which it extends transversely across the zone through which passage is to be controlled and to two different open positions at which the barrier is respectively rotated 90° in one direction from the closed position, to lie against one side of the zone, and 90° in the other direction from the closed position to lie, relatively oppositely directed, again along the side of the zone.
  • the gate would be arranged to be opened in one direction away from its closed position to one of the open positions, such as by rotation in a clock-wise direction as viewed in plan.
  • the direction of opening is arranged to have a component of movement in the intended allowed direction of passage through the zone, since this is easiest for persons so wishing to traverse through the zone.
  • persons intending to pass through the zone in a reverse direction being the direction in which passage is to be discouraged, will more naturally tend to move the gate in the direction opposite to the normal opening direction, such as anti-clock-wise in the just mentioned example given, to position the gate at its other open position.
  • the alarm may be arranged to be actuated upon detection of movement of the gate to the last mentioned open position. This may simply be effected by use of a cam operated micro switch, suitably positioned.
  • FIG. 7 shows a form of detector device 70 which has been found particularly satisfactory.
  • Device 70 comprises a generator 80 of low power microwave radiation of signal frequency f Q , two detectors 82, 84 for receipt of reflected microwave radiation such as from the person 86 shown approaching the device 70, a comparator 88 and an actuating device 90 such as a relay.
  • the generator 80 may be constructed in usual fashion for microwave radiation devices.
  • One such device is, for example, described in my Inter- national Patent Application No. PCT/AU84/00089.
  • the generated radiation is directed outwardly from the location at which detection is to be effected, such as away from the entryway at the entrance 10 or the exit side 16 thereof.
  • the receivers 82, 84 are each generally constructed in conventional fashion such as described in the aforementioned International Patent Application No.
  • the receivers 82, 84 are, by mechanical design or by insertion of elec ⁇ trical filters, designed to be responsive principally to frequencies displaced from the frequency f- by prede ⁇ termined amounts, f Q - f , and f Q + f respectively where f is a pre-selected frequency displacement.
  • the outputs from the receivers 82, 84 will thus differ in accordance with whether a person 86 is as shown approaching the device 70 or moving away therefrom.
  • the frequency of reflected radiation will be increased by an amount proportional to the velocity of approach and, in the event the person is moving away from the device 70 the frequency will be decreased by an amount proportional to the velocity of recession.
  • the receiver 82 which is responsive to a lower frequency f Q - f , will in the case where the person is approaching the detector 84 provide a relatively low output compared with the detector for increased frequency, since the sensitivity of that lower frequency responsive receiver 82 will be less, with respect to the reflected signal, than will be the sensitivity of the receiver 84 responsive to higher fre ⁇ quency signal.
  • the receiver 82 responsive to lower frequency signals will, for the same reasons, provide a greater output than that of the receiver 84 responsive to higher frequency signals.
  • the comparator 88 is effective to compare the outputs from the two receivers 82, 84 and provide an output only in the event that a desired one of the two signals from receivers 82, 84 is greatest, for actuating device 90 for, for example, operating the motor 20 only in the instance that a person 86 is approaching the entry way at the entrance 10 or for, for example, operating an alarm and/or locking the entryway on approach of a person to the entryway at the exit side 16. In the latter case it is particularly important that the detector be not responsive to persons traversing through the entryway in the normal direction and the ability of the device 70 to discriminate such movement from movement towards the entryway is thus of great importance.
  • Figure 8 shows an alternative arrangement in which the generator 80 is of the same form as described in relation to Figure 7.
  • a single receiver 87 generally like the receiver 82 or 84 is employed, but being non-frequency selective so as to simply provide at its output an electrical signal, the magnitude and frequency of which correspond to the magnitude and frequency of the incoming reflected signal at the receiver 87.
  • two filters 94, 96 are provided, connected to.the output of receiver 87 and tuned to the respective frequencies f ⁇ - f and f fl + f to provide that the output from one filter will be greater than the other in accordance with whether or not the person is approaching or moving away from the device 70.
  • a comparator 88 like the comparator 88 in Figure 7 is employed to compare the outputs of the filters 94, 96 and operate the device 90 in the same way as previously described.
  • the two receivers themselves comprise detectors for signals of different frequencies.
  • two such detectors are formed by the receiver 87 and the filters 94, 96.
  • the arrangement of Figure 7 can however be further modified to enable it to function even where the receivers 82, 84 are not frequency selective, by positioning the receivers to be displaced along the line of propagation of the reflected signal.
  • the receivers will generate oscillatory electrical signals of frequency equal to the frequency of the reflected signal but of phase displacement proportionate to the spacing of the receivers.
  • the phase relationship between the receiver outputs will vary and this variation can be detected to detect the direction of movement.
  • the invention provides in this aspect an improved detector device comprising means for generating an oscillatory signal transmittable through air, detector means responsive to reflected said signal from an object, for detecting presence of said object, the detector means including means responsive to the frequency of the reflected signal for determining whether the object is moving towards or away from the detector.
  • the detector means comprises two detectors responsive to frequencies respectively above and below the frequency of the oscillatory signal as generated and means for comparing the outputs of such receivers.
  • the detectors may comprise receivers which each receive reflected said oscillatory signal and generate outputs which are representative of the pre ⁇ sence of signals above and below the said frequency respectively or may comprise filters coupled to a single receiver which receives the reflected oscillatory signal.
  • the ' described detector device uses low power microwave energy, other oscillatory signals transmittable through air may be used, such as ultra- sonic sound signals.
  • the invention has been described as preferably including means for warning of any attempt by a person to pass through the entryway in the wrong direction. That is to say, as mentioned, by using photocells or the described detectors such as shown in figures 7 and 8, an alarm is raised if a person approaches the entryway at the exit " side 16.
  • the alarm which is operated may comprise for example flashing lights or a buzzer or electrically operated bell.
  • the alarm mechanism which is so operated includes means for generating an audio signal reproducing a human voice conveying a message to the effect that the person approaching the entryway at the exit side is so proceeding to pass in the wrong direction and, for example, requesting that the person not so pass through the entryway.
  • the releyant voice signal may be generated by operating a pre-recorded tape in a tape play back machine or, more preferably from a programmable artificial device such as suitably programmed read only memory device.
  • a programmable artificial device such as suitably programmed read only memory device.
  • a voice signal providing suitable information to such approaching persons. For example a welcoming message may be provided or information may be given as to particular services or goods being offered for sale at a store with which the entryway is associated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Burglar Alarm Systems (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

Système de portillon comprenant deux barrières parallèles (2), (4) définissant l'entrée d'une zone. Un portillon (6) pivote sur un axe vertical d'un côté de la zone et est mobile entre une position fermée dans laquelle il s'étend à travers la zone et une position ouverte dans laquelle il s'étend dans le sens de la zone à proximité d'une barrière (2). Le portillon (6) est entraîné par un moteur (20) via un raccord flexible (22), une boîte d'engrenages démultiplicateurs (24) et un organe de couplage (26) et un embrayage sollicité par un ressort (28). Lorsque le portillon (6) est en position fermée, il est verrouillé dans cette position en verrouillant l'organe de couplage (26). Le portillon peut, toutefois, être amené en position ouverte, et ceci malgré le verrouillage, en lui appliquant une force produisant une pression suffisante pour libérer l'embrayage à ressort (28). L'approche d'une personne du système de portillon, dans le sens prévu et permis de passage, à l'entrée (10), est détecté grâce à une cellule photoélectrique (12) provoquant l'ouverture du portillon pendant une période prédéterminée et ensuite le retour du portillon dans la position fermée. L'approche d'une personne du côté sortie (16) est détectée par un agencement de détecteur (14) déclenchant une alarme lors de la détection d'une telle approche.
EP85903792A 1984-07-30 1985-07-30 Systemes de portillions Withdrawn EP0190228A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AU628184 1984-07-30
AU6281/84 1984-07-30
AU700684 1984-09-07
AU7006/84 1984-09-07
AU815984 1984-11-16
AU8159/84 1984-11-16

Publications (1)

Publication Number Publication Date
EP0190228A1 true EP0190228A1 (fr) 1986-08-13

Family

ID=27151652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85903792A Withdrawn EP0190228A1 (fr) 1984-07-30 1985-07-30 Systemes de portillions

Country Status (2)

Country Link
EP (1) EP0190228A1 (fr)
WO (1) WO1986000953A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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US10407965B2 (en) 2016-12-22 2019-09-10 Universal City Studios Llc Cam locking shotgun gate

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KR100723919B1 (ko) * 2006-02-16 2007-08-10 성균관대학교산학협력단 이온각인 중합체를 이용한 중금속이온의 선택적 분리
US10407965B2 (en) 2016-12-22 2019-09-10 Universal City Studios Llc Cam locking shotgun gate

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