WO1993023799A1 - Systeme de commande de portillons - Google Patents

Systeme de commande de portillons Download PDF

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Publication number
WO1993023799A1
WO1993023799A1 PCT/SE1993/000433 SE9300433W WO9323799A1 WO 1993023799 A1 WO1993023799 A1 WO 1993023799A1 SE 9300433 W SE9300433 W SE 9300433W WO 9323799 A1 WO9323799 A1 WO 9323799A1
Authority
WO
WIPO (PCT)
Prior art keywords
gate
transmitter
entrance
sonar
passageway
Prior art date
Application number
PCT/SE1993/000433
Other languages
English (en)
Inventor
Einar Edland
Roland Wängelin
Original Assignee
Metallteknik Met-O-Matic Ab
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 Metallteknik Met-O-Matic Ab filed Critical Metallteknik Met-O-Matic Ab
Publication of WO1993023799A1 publication Critical patent/WO1993023799A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/04—Systems determining presence of a target
    • 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
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/10—Movable barriers with registering means
    • 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
    • E05F2015/763—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects using acoustical sensors
    • 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

Definitions

  • the present invention relates to a system for controlling gated entrances, preferably gated entrances which permit access to retail stores or other localities open to the public.
  • the entrance control system includes an entrance passageway which is defined by posts on which rotatable or pivotal gates are mounted, and a sensor which detects the presence of people and objects in the vicinity of the passageway and sends signals to a control arrangement which functions to control opening and closing of the gate.
  • entrance systems which include openable and closable gates are used at the entrances to retail stores. These entrance systems function to control the flow of customers into the store, by forcing the customers to pass through a defined passageway. The entrance system also functions to prevent customers from exiting through the passageway without passing a pay desk, either consciously or by mistake. The entrance system is thus constructed to permit one-way passage into the store, while preventing customers leaving the store through the entrance passage.
  • the openable and closable gates may be constructed to keep the passageway closed when in a normal closing position, and to be openable, either manually or automatically, to allow people to enter the store, while latching the gates in the opposite, exit direction.
  • the gates may be constructed to remain open in a normal gate position, and to close automatically should a person attempt to exit the store through the entrance passageway. Opening and closing of the gates is thus controlled by control equipment which detects locally the presence of customers and also objects, in certain cases.
  • IR detectors infrared detectors
  • One drawback with this system is that it is only able to detect changes that lie in a specific frequency range, i.e. temperature differences which lie within the measuring range of the sensor.
  • a person who moves within this measuring range will be detected, a stationary person or object at room temperature, for instance a shopping trolley, cart, etc., will not be detected.
  • the system can thus be readily “fooled", by standing still in the measuring range for a given period of time, or by pushing an object in the wrong direction out through the system. Difficulties have also been encountered in operating the system with solar lighting, for instance.
  • the object of the present invention is to solve the aforesaid problems by providing an entrance system which is proof against disturbances and which cannot be "fooled", is of simple construction and includes only a small number of expensive units and is therefore inexpensive.
  • Another object of the invention is to provide an entrance system which will satisfy all security requirements placed on systems of this kind.
  • FIG. l illustrates a first embodiment of an in ⁇ ventive entrance system, as seen from outside the entrance;
  • Figure 2 illustrates the entrance system of Figure 1 as seen from inside the entrance
  • FIG. 3 is a principle diagram of a sonar unit, in accordance with the invention.
  • FIG. 4 is a block diagram which illustrates the sonar unit of Figure 3;
  • - Figure 5 is a flowsheet which describes the control system according to one embodiment of the invention
  • - Figure 6 is a block diagram which illustrates the gate system according to one embodiment of the invention.
  • Figures l and 2 illustrate an inventive store entrance system, comprising an entrance opening 2 whose width is sufficient to enable shopping trolleys, children's carriages (prams) and the like to easily pass through.
  • Placed on each side of the entrance opening are double gateposts 4 which support pivotal gates 6.
  • the gates 6 are normally swung-out across the width of the opening, so as to prevent passage through the gates 6 until the gates are activated.
  • One or more sensing devices are mounted at a suitable location in or in the vicinity of the entrance passageway 2, such as to detect the presence of persons and objects in the areas in front of and behind the gates.
  • a first sensing device 8 is mounted in a front gatepost 4, while a second sensing device 9 is mounted in a rear gatepost 4.
  • the sensing devices are positioned so as to be face generally towards the permitted movement direction of arrow A or in the same direction as arrow A.
  • the .inventive sensing device is comprised of a sonar (sound navigation and ranging) , which is constructed to function as both a transmitter and a receiver of ultrasonic signals.
  • the sonar transmits signals or pulses at a frequency within the ultrasonic frequency range, these signals being reflected and transmitted back to the sonar when impinging on an object.
  • One characteristic feature of sonar signals is that the transmitted signal spreads and diverges in the form of a lobe.
  • the signals are transmitted in the form of ultrasonic pulses that have a duration of preferably about 250 ⁇ s and with high energy content, i.e. the pulse or signal has a voltage of about 120-350 V analogously.
  • the receiver in the sonar is selective, i.e.
  • the sonar transmits sonic pulses and when the pulses impinge on an object, an echo is transmitted back to the sonar and captured in the sonar receiver.
  • the sonar is tuned to sense the echo within a given measuring range in the entrance passageway and sorts-out echoes from objects that lie outside this range. According to the invention, the sonar is permitted to receive several sequential echoes from the object before sensing takes place, so as to exclude false echoes.
  • the direction in which the object/person moves is determined by repeated echoes which change in time.
  • Movement of an object is determined by comparing the time of reflected signals at intervals of about 5-100 ms. When the echo time shortens between these intervals, it signifies that the object is moving towards the sensing arrangement, whereas lengthened echo times signify that the object is moving away from said arrangement.
  • the pulse captured in the sonar is processed in an electronic unit, in which the pulse is amplified, among other things, and then delivered to a microprocessor.
  • the microprocessor incorporates those working areas, so- called windows, within which the sensing devices are intended to operate or to detect the echoes, and the signals delivered by the sonar are processed in the microprocessor.
  • a detection signal is produced when a sonar receives an object echo that lies within its working range.
  • Object echoes that lie outside the defined window are sorted-out by the microprocessor and no detection signal is produced in response to these echoes.
  • the microprocessor processes the signals delivered by sensing devices which detect the presence of objects, persons, movements and directions within the measuring area.
  • the microprocessor samples signals to a micro ⁇ program, which processes the signals and delivers signals to a further microprocessor which controls opening and closing of the gates and optionally other functions, such as alarm functions and the like.
  • the embodiment illustrated in Figure 1 thus includes a sensing device 8 which is mounted in a front gatepost 4, as seen in the direction of the arrow A in Figure l, and which faces in the permitted direction of movement and senses the area externally of the gate.
  • a second sensing device 9 is fitted in a rear gatepost 4 and also faces the permitted direction of movement, but senses the area inwardly of the gate.
  • the entrance system according to the embodiment illus ⁇ trated in Figures 1 and 2 operates in the following manner.
  • the inner sonar will detect the presence of an object in its measuring area, which results in the gate being closed and the system producing a "wrong way" alarm.
  • An external alarm such as an acoustic alarm signal or a light signal, is also coupled to this function. In this operational state of the system other people are prevented from entering the store in the external measuring area.
  • the system is such that the sonar which first receives a signal is superordinate to other sonars.
  • the gate is opened automatically but has the safety function of never closing onto a person, for instance a child, or an object located behind and inwardly of the gate.
  • Figures 3-5 illustrate a second preferred embodiment of the invention in which the entrance system includes a gated entrance which when in its normal position maintains the entrance opening free for passage of people and/or objects into the store.
  • the gate is normally open and is closed only when people, or objects, attempt to exit from the store through the "wrong" passageway. In order to achieve this, it is necessary to detect the presence of people and/or objects within a defined area inwardly of the open gate.
  • the presence of people and/or objects is detected with the aid of a sonar system of the kind described in the aforegoing, which enables the area inwardly of the gate to be sensed effectively and also enables the direction in which objects and/or people move within this area to be detected.
  • the sonar signals are spread and diverge in the form of lobes, such as to generate a defined sensing area. The extent of this area will depend on the maximum spread of the acoustic signal by the microphone, this spread reaching, for instance, +/- 8° with an attenuation of -3 dB.
  • the area inwardly of the gate to be sensed mostly has a size which requires not only one but several microphones in order to function fully satisfactorily. This solution is both expensive and impractical.
  • a sonar unit which includes a system having only one sonar which is mounted on a motor-driven shaft and stepped forwards incrementally. This increases the "viewing angle" of the system and the sonar is able to scan the whole of the contemplated area.
  • This motor- driven sonar control provides the advantage of needing only one sonar to cover the Whole of the scanning area, while achieving a high degree of flexibility with regard to the need to adapt the measuring area to suit different store solutions.
  • FIG. 3 illustrates an inventive sonar unit which can be mounted on a post or a wall.
  • the unit includes a microprocessor 12 which includes drive stages for the sonar motor 14.
  • the motor 14 functions to step forwards a shaft 16 which carries the sonar microphone.
  • the unit also includes a drive stage 26 for the sonar microphone, an amplifier 30 and a mixer 28, which are conveniently mounted on a separate circuit board 20.
  • the block schematic illustrated in Figure 4 shows how the sonar unit of Figure 3 operates.
  • the microprocessor 22 delivers signals to the drive stage of the sonar motor 24, which steps the motor forwards through one increment.
  • the microprocessor 22 then sends a signal to the drive stage of the microphone 26, which transmits ultrasonic pulses of a duration of about 250 ⁇ s and with a high energy content. For instance, the voltage in the pulse or signal may reach 250 V.
  • the signal then passes to the adjustable mixer 28, which is set so that the signal will be transferred to the microphone 18.
  • the mixer 28 is adjusted to receive any echo that may be captured by the microphone 18, in the form of a weak acoustic impact.
  • the received signal is greatly amplified in an amplifier 30 while the identification of the signal is checked by checking that the signal has the same frequency as the transmitted signal. Signals which lie within other frequency bands are sorted-out.
  • the amplifier output signal is delivered to the microprocessor, which receives and registers information that an echo has been detected.
  • the sonar thus transmits one or more ultrasonic pulses and awaits echoes from objects located within the measuring area.
  • the microphone is rotated by the stepping motor to the next measuring angle and a new sensing or scanning operation is carried out.
  • the software program controls rotation of the microphone by the stepping motor so as to rotate the microphone through, for instance, 15° between each sensing or scanning position.
  • the software program also controls the number of distinct sensing or scanning positions, so that the whole of the measuring area is sensed/scanned by one single sonar unit.
  • the flexibility of the system is enhanced by incorporating in the preset measuring area described above, and within which the sonar identifies the echoes, a self-learning function which renders the measuring area adjustable. This is particularly beneficial, since it enables the system to be adapted to restructuring and other modifications to the store/gate system, since such structural changes will normally render the preprogrammed measuring area irrelevant and in need of change.
  • the sonar unit has been provided with a self-learning function which enables the system to examine and record the relevant measuring area with the aid of an initiation routine which is carried out in conjunction with installation of the system; see in particular Figure 5.
  • the desired measuring area is screened-off with the aid of stationary objects placed in line with the outer limits of said area.
  • the sonar After having manually initiated the self- learning function, for instance through a keyboard, (see Figure 5) , the sonar begins to measure the measuring area concerned.
  • the sonar transmits an ultrasonic pulse and awaits, detects and registers the echo that is reflected from an object positioned on the outer limit of said area.
  • the motor moves the sonar to the next measuring point and the detecting and registering procedure is repeated. When the entire measuring area has been measured in this way, the sonar is ready to operate in a normal way.
  • the sonar microphone restricts the outer measuring area to about 15-20 m. Since it is essential to maintain the sound propagation time at a favourable low level, the maximum measuring range of the sonar is preferably restricted with the aid of the software program to a distance suitable for gate application, for instance a distance of three meters. Thus, in the self- earning procedure the sonar will assume initially that the measuring area is three meters in all measuring directions. If the sonar does not receive any echoes within the three meter distance when following the self- learning procedure described above, all maximum distances are set to three meters. The sonar transmits one or more ultrasonic pulses and awaits echoes from an object within the maximum measuring range.
  • the computer memory is preferably of the EEprom type, in which stored data can be written-over an unlimited number of times. This type of memory will also retain data if the supply of electric current to the computer fails.
  • Figure 5 illustrates a program description in the form of a flowsheet which describes the control of the sonar unit and the gates.
  • One or more preselected programs are chosen when initiating the system, for instance a self- learning program, a maximum measuring range program and/or a program which determines the number of acoustic pulses that are transmitted at each measuring point.
  • sensing arrangement which will indicate to the system that a person or an object approaches the gate opening from outside the locality.
  • This arrangement may comprise forwardly facing sonars, as in the case of Figures 1 and 2, a single photocell or some other suitable sensing unit.
  • Figure 6 illustrates a system construction in which a simple photocell is used to sense the area outside the gate opening.
  • the gate motor and therewith the position of the gate are controlled by the sonar unit according to Figures 3 and 4 together with the photocell.
  • the arrangement, or system also includes limit switches which detect the outer limits of the gate, and an external alarm, such as an acoustic and/or light alarm, connected to the gate unit.
  • a start button for manual adjustment of the opening and closing movements of the gate may be installed, for instance, at a reception desk.
  • a pulse is initiated which starts a timer in the gate control unit.
  • the "wrong way"-signal from the sonar is blocked while the timer is active. This enables people to pass through the area sensed by the sonar and through the entrance system without an alarm being triggered. Should a person remain in the measuring area after the timer has been switched-off, or if some other person has entered the measuring area, the gate is closed and the alarm is triggered, this alarm being a light and/or acoustic alarm.
  • the gate is reopened, after the person has left the measuring area.
  • the system will sense that the photocell is blocked after a predetermined time period has lapsed. The gate is then closed and held closed until the photocell is no longer blocked.
  • This problem has been solved in accordance with a preferred embodiment of the invention by giving an individual identity to each pulse transmitted by the sonar. This is achieved by mixing each individual ultrasonic pulse with a binary code, so that the ultrasonic pulse leaving the microphone will have an overlaid binary information code.
  • This overlaid infor ⁇ mation and identification code can be achieved with the aid of a frequency modulated ultrasonic carrier wave (FMUB) , an amplitude modulated ultrasonic carrier wave (AMUB) or a pulse width modulated ultrasonic carrier wave (PWMUB) .
  • FMUB frequency modulated ultrasonic carrier wave
  • AMUB amplitude modulated ultrasonic carrier wave
  • PWMUB pulse width modulated ultrasonic carrier wave
  • the sensing devices can be mounted in a number of different places in the vicinity of the entrance passageway, such as on wall sections and other proximal units. It is preferred, however, to mount the devices on posts, since this enables the whole of the sensing and control equipment to be incorporated in the post, which simplifies the laying of cables and increases security.
  • a number of supplementary functions can also be included in the inventive system, such as counting the number of people entering through the passageway, etc.
  • the system may also be supplemented with different acoustic and light alarms, for instance with a recorded message which informs a customer that he/she is going the wrong way.
  • the gates may also be provided with panic catches in both directions, which cause the gates to yield and open when subjected to a given pressure.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

L'invention se rapporte à un système de commande de portillons d'entrée dans des magasins en particulier ou dans d'autres lieux ouverts au public. Le système d'entrée comprend un passage d'entrée défini par des piliers sur lesquels des portillons sont montés rotatifs. Un moyen de détection sert à détecter la présence de personnes et d'objets à proximité du passage et à émettre des signaux à un moyen de commande servant à commander l'ouverture et la fermeture du portillon. Le moyen de détection comprend au moins un sonar (8, 9) monté dans le passage (2), ou à proximité de ce dernier, et comportant un émetteur/récepteur servant à émettre des impulsions ultrasonores et à recevoir des impulsions ultrasonores réfléchies par des objets et des personnes se trouvant à l'intérieur de la zone de détection déterminée.
PCT/SE1993/000433 1992-05-15 1993-05-17 Systeme de commande de portillons WO1993023799A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9201556-9 1992-05-15
SE9201556A SE9201556D0 (sv) 1992-05-15 1992-05-15 Entresystem med oeppningsbara spaerranordningar foer butikslokaler

Publications (1)

Publication Number Publication Date
WO1993023799A1 true WO1993023799A1 (fr) 1993-11-25

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PCT/SE1993/000433 WO1993023799A1 (fr) 1992-05-15 1993-05-17 Systeme de commande de portillons

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SE (1) SE9201556D0 (fr)
WO (1) WO1993023799A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997024503A1 (fr) * 1995-12-28 1997-07-10 Wanzl Gmbh & Co. Entwicklungs-Kg Systeme d'admission de personnes
US6185867B1 (en) 1999-03-26 2001-02-13 Mcguire John Dennis Entrance control device for sequential displacement of a plurality of barriers
GB2402168A (en) * 2003-05-30 2004-12-01 Leigh Smith Automatic Infant Safety Gate/Barrier
WO2011083352A1 (fr) * 2010-01-06 2011-07-14 Stephen Kucer Système de contrôle d'entrée
US8453382B2 (en) 2007-10-03 2013-06-04 Stephen Kucer Entrance control system
CN103620147A (zh) * 2011-06-09 2014-03-05 泰雷兹公司 用于监管通向限制区域的通道的系统以及用于控制该系统的方法
CN103824367A (zh) * 2014-02-28 2014-05-28 重庆多创电子技术有限公司 智能超声波门禁感应器

Citations (8)

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Publication number Priority date Publication date Assignee Title
GB1604182A (en) * 1974-06-26 1981-12-02 Neidell N S Velocity determination and range and velocity determination
US4403311A (en) * 1980-03-21 1983-09-06 Thomson-Csf Acoustic imaging system
JPS599574A (ja) * 1982-07-07 1984-01-18 Tdk Corp 超音波物体検知装置
DE3432292A1 (de) * 1984-09-01 1986-03-13 Egon 5352 Zülpich Gelhard Ultraschall-alarmsystem mit einer us-sender-empfaengeranordnung
US4628496A (en) * 1984-07-27 1986-12-09 Von Duprin, Inc. Ultrasonic sensing and monitoring systems
DE3805439A1 (de) * 1988-02-22 1989-09-07 Dotronic Mikroprozessortechnik Verfahren zur ueberwachung eines raumes gegen unbefugten eintritt mittels ultraschall
DE4102068A1 (de) * 1990-03-26 1991-10-02 Samsung Electronics Co Ltd Auf einer plattform angeordnetes schwenkbares ultraschall-nachweissystem
US5097454A (en) * 1989-10-11 1992-03-17 Milan Schwarz Security door with improved sensor for detecting unauthorized passage

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GB1604182A (en) * 1974-06-26 1981-12-02 Neidell N S Velocity determination and range and velocity determination
US4403311A (en) * 1980-03-21 1983-09-06 Thomson-Csf Acoustic imaging system
JPS599574A (ja) * 1982-07-07 1984-01-18 Tdk Corp 超音波物体検知装置
US4628496A (en) * 1984-07-27 1986-12-09 Von Duprin, Inc. Ultrasonic sensing and monitoring systems
DE3432292A1 (de) * 1984-09-01 1986-03-13 Egon 5352 Zülpich Gelhard Ultraschall-alarmsystem mit einer us-sender-empfaengeranordnung
DE3805439A1 (de) * 1988-02-22 1989-09-07 Dotronic Mikroprozessortechnik Verfahren zur ueberwachung eines raumes gegen unbefugten eintritt mittels ultraschall
US5097454A (en) * 1989-10-11 1992-03-17 Milan Schwarz Security door with improved sensor for detecting unauthorized passage
DE4102068A1 (de) * 1990-03-26 1991-10-02 Samsung Electronics Co Ltd Auf einer plattform angeordnetes schwenkbares ultraschall-nachweissystem

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Title
PATENT ABSTRACTS OF JAPAN, Vol. 8, No. 97, P-272; & JP,A,59 009 574 (TDK K.K.), 18 January 1984. *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997024503A1 (fr) * 1995-12-28 1997-07-10 Wanzl Gmbh & Co. Entwicklungs-Kg Systeme d'admission de personnes
US6185867B1 (en) 1999-03-26 2001-02-13 Mcguire John Dennis Entrance control device for sequential displacement of a plurality of barriers
GB2402168A (en) * 2003-05-30 2004-12-01 Leigh Smith Automatic Infant Safety Gate/Barrier
GB2402168B (en) * 2003-05-30 2005-04-06 Leigh Smith Automatic infant safety gate/barrier
US8453382B2 (en) 2007-10-03 2013-06-04 Stephen Kucer Entrance control system
WO2011083352A1 (fr) * 2010-01-06 2011-07-14 Stephen Kucer Système de contrôle d'entrée
CN103620147A (zh) * 2011-06-09 2014-03-05 泰雷兹公司 用于监管通向限制区域的通道的系统以及用于控制该系统的方法
CN103620147B (zh) * 2011-06-09 2016-03-02 泰雷兹公司 用于监管通向限制区域的通道的系统以及用于控制该系统的方法
CN103824367A (zh) * 2014-02-28 2014-05-28 重庆多创电子技术有限公司 智能超声波门禁感应器

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