EP2256277B9 - Integrated device for obstacle detection and travel indication for a motorised gate or the like - Google Patents
Integrated device for obstacle detection and travel indication for a motorised gate or the like Download PDFInfo
- Publication number
- EP2256277B9 EP2256277B9 EP10161955A EP10161955A EP2256277B9 EP 2256277 B9 EP2256277 B9 EP 2256277B9 EP 10161955 A EP10161955 A EP 10161955A EP 10161955 A EP10161955 A EP 10161955A EP 2256277 B9 EP2256277 B9 EP 2256277B9
- Authority
- EP
- European Patent Office
- Prior art keywords
- receiver
- transmitter
- gate
- indicator light
- flashing
- 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.)
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Links
- 238000001514 detection method Methods 0.000 title claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000004913 activation Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000011664 signaling Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000002547 anomalous effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- 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
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
-
- 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
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
-
- 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
- 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
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
- E05F2015/434—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with cameras or optical sensors
- E05F2015/435—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with cameras or optical sensors by interruption of the beam
- E05F2015/437—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with cameras or optical sensors by interruption of the beam the beam being perpendicular to the wing edge
-
- 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
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F2015/487—Fault detection of safety edges
-
- 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
- E05Y2400/45—Control modes
- E05Y2400/452—Control modes for saving energy, e.g. sleep or wake-up
-
- 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
- E05Y2400/61—Power supply
-
- 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
- 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
- E05Y2400/83—Travel information display
-
- 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
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/40—Mounting location; Visibility of the elements
- E05Y2600/45—Mounting location; Visibility of the elements in or on the fixed frame
-
- 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
- E05Y2800/20—Combinations of elements
- E05Y2800/21—Combinations of elements of identical elements, e.g. of identical compression springs
-
- 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
- E05Y2800/26—Form or shape
- E05Y2800/29—Form or shape forming a unitary piece with another element
-
- 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 finding concerns an integrated device for obstacle detection and travel indication for a motorised gate or the like, with particular reference to sliding and swinging gates, barriers, automatic doors and the like.
- the same standard forces at least one optical device for detecting obstacles to be installed, in many installation conditions.
- the detection of obstacles is carried out by applying an electromagnetic beam in the infrared field, between a transmitting unit and a receiving unit, arranged at opposite sides of the opening, the access of which, is controlled by a barrier or by a gate.
- the receiver When the infrared beam intercepts an object, the receiver sends a signal to the control unit, which is translated into a command to stop or reverse the motion of the motorisation unit.
- many pairs of photocells are applied installed in various positions on the pillars of the access opening of the gate or door, on their inner or outer side and at variable heights according to the use of the gate.
- indicator light devices which, synchronised with the movement of the door, warn the user that the opening or closing has begun, with the purpose of visually warning whoever is in the movement area of the gate.
- indicator light devices consist of yellow-orange semi transparent dome lamps, illuminated with synchronised flashing lights, with variable frequency, in general of the order of one flash per second.
- the light source consists of a common incandescent bulb or in some cases of LED lights, with a supply and control unit for synchronising the flashing, connected to the control station of the gear motor.
- the light source consists of one or more power LEDs, the light beam of which is suitably concentrated and directed by an optical deflector towards the area adjacent to the manoeuvring area of the gate.
- One or more LED lights are used also with a function of diagnosing the anomalous operation of the detecting device, consisting of one or more pairs of infrared photocells. For example, in the case in which the light beam is engaged by an object, the LEDs of the transmitter could be switched on, whereas the LEDs of the receiver could be switched off, this condition being sufficient to identify the condition of the interruption of the light beam by an obstacle.
- the LED indicators In a system with many pairs of photocells, applied to the same access opening, it is possible to identify, through the LED indicators, which pair is engaged by an obstacle, or which pair of photocells has an anomalous or faulty operation condition. For example, if there are disturbances with the signal or if there is a misalignment between the transmitter and the receiver, when the gate receives the manoeuvre command, there is no actuation.
- the asymmetric operation of the LEDs between the receiver and the transmitter which is essential for this invention, allows the installer and the user to immediately identify which pair of photocells is misaligned, or engaged. In a completely analogous manner, it is also possible to ensure diagnosing operations for a possible fault of the photocell.
- the indicator LEDs for example, by varying the indication frequency, can help the installer carry out the correct centring of the pair of photocells during the first installation.
- the access opening 1 is closed by a mobile barrier (or gate 2) actuated by the motor 6, through the rack 8, along the tracks 9 between the mechanical end stops 10.
- the transmitter 3 and receiver 4 elements of the pairs of photocells which, through the infrared signal 5, intercept possible obstacles during the actuation, sending a suitable signal to the control unit of the motor 6, being also supplied by it, are fixed to the side pillars 11 of the access opening and to the columns 7.
- indicator lights are not represented, since they are integrated in the transmitter and receiver elements 3 or 4 of the photocells, the detail of which is illustrated in fig.2.
- Fig.2 represents a three dimensional exploded view of one of the elements 3 or 4.
- the base 21 is fixed to a pillar 11 or to the column 7 with some screws passing through the holes 23 and acts as a support for the printed circuit 18, which rests on the support element 22 and is connected to the control unit of the motor 6 through a cable passing through the hole 23.
- the printed circuit 18, represented in a simplified manner, has a photodiode 19 for the detection function, a terminal box 20 for the connection and a group 15 comprising at least one power LED for the flashing indication function.
- the printed circuit 18 is closed by a lid 14, which has the function of directing the indicator light beam of the LEDs 15 passing in the holes 16 through the deflector 17 and of protecting the photodiode 19 from interferences through the cone 13.
- the device is also closed by an outer lid 3 fixed by screws passing through the holes 12 and 25 on the tabs 24 of the base 21. All of this is closed in a semi-transparent outer half-shell 26, which allows the infrared beam to pass towards the deviator cone and simultaneously makes the indicator LEDs visible.
- the integration of the indicator system with the device for detecting obstacles provides the user and the installer with the possibility of highlighting possible anomalies and faults of the device through the indicator device.
- the activation of the flashing indicator device in the receiver 4 is enabled only if it is during the reception of an infrared signal 5. Therefore, if for some reason the activation of the door were to be carried out with the device for detecting obstacles not active, it would be highlighted to the user by the absence of flashing of the receiver, with however the flashing of the transmitter.
- This logic is particularly useful in the case in which it is wished to connect many pairs of photocells in series, with the purpose of completely checking the manoeuvre area of the door, at different heights so that, in some cases these pairs of detection devices are also applied.
- the graph a) represents the signal 5, obtained by the emission of infrared pulses of the transmitter 3, whereas the graph b) represents the emission of light pulses of the indicator light 15 of the transmitter 3 and of the receiver 4 (indicated respectively with reference numerals 27 and 28).
- the transmitter 3, at the flashing of its indicator light 15, emits a packet of pulses P with a higher frequency (for example five pulse in Is, with a period ⁇ t1 20 ⁇ s), the receiver 4 once identified the packet of pulses, commands the flashing of its indicator light.
- the flashing of the transmitter 3 and of the receiver 4 are synchronised with a frequency of 1/ ⁇ t, the delay between the first and the second flash being practically negligible.
- the sending of the packet P occurs with a periodicity indicated in the figure as ⁇ T (generally of the order of 1 s).
- Each pair of photocells can be associated with a characteristic transmission frequency of the infrared signal, set during installation, by associating, for example, each pair of transmitters 3 and receivers 4 with an address and allowing the receiver 4 to recognise the signal of the transmitter 3 associated with it. In this way, overlapping between the signal of different pairs of photocells, in the case in which installations are carried out on the same detection plane, is avoided.
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Radar Systems Or Details Thereof (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Radio Relay Systems (AREA)
Description
- The present finding concerns an integrated device for obstacle detection and travel indication for a motorised gate or the like, with particular reference to sliding and swinging gates, barriers, automatic doors and the like.
- The application of the recent directives of the European Union for the field of automated doors and gates, in particular the machinery directive and its application standard EN 13241-1, forces the manufacturer of motorised doors to install accessories having the purpose of preventing or reducing the effects of bumping into or squashing people, animals or things present in the manoeuvring radius of the moving member. The same standard forces at least one optical device for detecting obstacles to be installed, in many installation conditions. Typically, the detection of obstacles is carried out by applying an electromagnetic beam in the infrared field, between a transmitting unit and a receiving unit, arranged at opposite sides of the opening, the access of which, is controlled by a barrier or by a gate. When the infrared beam intercepts an object, the receiver sends a signal to the control unit, which is translated into a command to stop or reverse the motion of the motorisation unit. In common use, many pairs of photocells are applied installed in various positions on the pillars of the access opening of the gate or door, on their inner or outer side and at variable heights according to the use of the gate.
- Just as common, even if not explicitly required by the European standards, is the installation of indicator light devices, which, synchronised with the movement of the door, warn the user that the opening or closing has begun, with the purpose of visually warning whoever is in the movement area of the gate. In general, such devices consist of yellow-orange semi transparent dome lamps, illuminated with synchronised flashing lights, with variable frequency, in general of the order of one flash per second. The light source consists of a common incandescent bulb or in some cases of LED lights, with a supply and control unit for synchronising the flashing, connected to the control station of the gear motor.
- The documents
US2008/094229A1 andUS 186168A1 can be cited as belonging to the state of the art. In particularUS2008/094229A1 discloses all the features of the preamble ofclaim 1. - The purpose of the present finding is combining the obstacle detection function with the indicator function, such that the indicator function is also used for diagnosing the anomalous operation of the detecting device. In particular, the light source consists of one or more power LEDs, the light beam of which is suitably concentrated and directed by an optical deflector towards the area adjacent to the manoeuvring area of the gate. One or more LED lights are used also with a function of diagnosing the anomalous operation of the detecting device, consisting of one or more pairs of infrared photocells. For example, in the case in which the light beam is engaged by an object, the LEDs of the transmitter could be switched on, whereas the LEDs of the receiver could be switched off, this condition being sufficient to identify the condition of the interruption of the light beam by an obstacle. In a system with many pairs of photocells, applied to the same access opening, it is possible to identify, through the LED indicators, which pair is engaged by an obstacle, or which pair of photocells has an anomalous or faulty operation condition. For example, if there are disturbances with the signal or if there is a misalignment between the transmitter and the receiver, when the gate receives the manoeuvre command, there is no actuation. The asymmetric operation of the LEDs between the receiver and the transmitter, which is essential for this invention, allows the installer and the user to immediately identify which pair of photocells is misaligned, or engaged. In a completely analogous manner, it is also possible to ensure diagnosing operations for a possible fault of the photocell. The indicator LEDs, for example, by varying the indication frequency, can help the installer carry out the correct centring of the pair of photocells during the first installation.
- The present finding shall now be illustrated and described in detail, with reference to a particular embodiment, given as an example and not for limiting purposes, with the help of the attached drawing tables, in which:
-
fig. 1 (table 1) illustrates a general view of a motorisation system with pairs of photocells arranged in various positions; -
fig. 2 (table II) represents a three dimensional exploded view of one of the two elements of the pair, consisting of the transmitter and the receiver; -
fig.3 (table III) represents a graph of the infrared pulses over time, with synchronised flashing according to the frequency; -
fig. 4 (table IV) represents a graph of the infrared pulses, with synchronisation of the flashing according to the duration of the signal. - As can be seen in
fig. 1 , theaccess opening 1 is closed by a mobile barrier (or gate 2) actuated by the motor 6, through the rack 8, along the tracks 9 between themechanical end stops 10. Thetransmitter 3 and receiver 4 elements of the pairs of photocells which, through the infrared signal 5, intercept possible obstacles during the actuation, sending a suitable signal to the control unit of the motor 6, being also supplied by it, are fixed to theside pillars 11 of the access opening and to thecolumns 7. As can be seen infig. 1 , indicator lights are not represented, since they are integrated in the transmitter andreceiver elements 3 or 4 of the photocells, the detail of which is illustrated infig.2. Fig.2 represents a three dimensional exploded view of one of theelements 3 or 4. Thebase 21 is fixed to apillar 11 or to thecolumn 7 with some screws passing through theholes 23 and acts as a support for the printedcircuit 18, which rests on thesupport element 22 and is connected to the control unit of the motor 6 through a cable passing through thehole 23. The printedcircuit 18, represented in a simplified manner, has aphotodiode 19 for the detection function, aterminal box 20 for the connection and agroup 15 comprising at least one power LED for the flashing indication function. The printedcircuit 18 is closed by alid 14, which has the function of directing the indicator light beam of theLEDs 15 passing in theholes 16 through thedeflector 17 and of protecting thephotodiode 19 from interferences through thecone 13. The device is also closed by anouter lid 3 fixed by screws passing through theholes tabs 24 of thebase 21. All of this is closed in a semi-transparent outer half-shell 26, which allows the infrared beam to pass towards the deviator cone and simultaneously makes the indicator LEDs visible. - The integration of the indicator system with the device for detecting obstacles provides the user and the installer with the possibility of highlighting possible anomalies and faults of the device through the indicator device. For example, the activation of the flashing indicator device in the receiver 4 is enabled only if it is during the reception of an infrared signal 5. Therefore, if for some reason the activation of the door were to be carried out with the device for detecting obstacles not active, it would be highlighted to the user by the absence of flashing of the receiver, with however the flashing of the transmitter. This logic is particularly useful in the case in which it is wished to connect many pairs of photocells in series, with the purpose of completely checking the manoeuvre area of the door, at different heights so that, in some cases these pairs of detection devices are also applied. In this case the failed operation of a pair of photocells should be verified for each pair of devices, connecting them individually to the control unit. In this way, on the other hand, it is possible to visually identify the operation capability of each single pair, without accessing the device and without disconnecting any cable, but by simply verifying the flashing of the single devices.
- Hereafter we shall illustrate the synchronisation method of the
indicator device 15, represented infig. 3 . The graph a) represents the signal 5, obtained by the emission of infrared pulses of thetransmitter 3, whereas the graph b) represents the emission of light pulses of theindicator light 15 of thetransmitter 3 and of the receiver 4 (indicated respectively withreference numerals 27 and 28). Normally the signal 5 is emitted by thetransmitter 3 towards the receiver 4 of the pair of photocells with a fixed frequency (for example, an infrared pulse of the duration of t = 1µs, with a periodicity of Δt0 = 1ms). Thetransmitter 3, at the flashing of itsindicator light 15, emits a packet of pulses P with a higher frequency (for example five pulse in Is, with a period Δt1 = 20µs), the receiver 4 once identified the packet of pulses, commands the flashing of its indicator light. The flashing of thetransmitter 3 and of the receiver 4 are synchronised with a frequency of 1/Δt, the delay between the first and the second flash being practically negligible. - A variant of the previous solution, represented in
fig. 4 , implies the sending of a packet of pulses with a greater duration of the single pulse, keeping the frequency unvaried: for example, a group of pulses is sent, the single duration of which passes from the value of t =10µs , to t'=20µs. The sending of the packet P occurs with a periodicity indicated in the figure as ΔT (generally of the order of 1 s). - Each pair of photocells can be associated with a characteristic transmission frequency of the infrared signal, set during installation, by associating, for example, each pair of
transmitters 3 and receivers 4 with an address and allowing the receiver 4 to recognise the signal of thetransmitter 3 associated with it. In this way, overlapping between the signal of different pairs of photocells, in the case in which installations are carried out on the same detection plane, is avoided. - List of the reference numerals used:
- 1. Access opening.
- 2. Gate or barrier.
- 3. Transmitter.
- 4. Receiver.
- 5. Infrared signal.
- 6. Motor.
- 7. Support columns.
- 8. Rack.
- 9. Track.
- 10. Mechanical end-stop.
- 11. Side pillars.
- 12. Outer half-shell holes for fixing screws.
- 13. Deviator cone.
- 14. Lid.
- 15. LED indicator.
- 16. Holes for LED indicators.
- 17. Deflector.
- 18. Printed circuit.
- 19. Photodiode.
- 20. Terminal box.
- 21. Base.
- 22. Support element.
- 23. Cable hole.
- 24. Fixing tabs.
- 25. Inner half-shell holes for fixing screws.
- 26. Semi-transparent outer half-shell.
- 27. Emission of indicating pulses of the transmitter.
- 28. Emission of indicating pulses of the receiver.
Claims (5)
- Integrated device for obstacle detection and travel indication for a motorized gate or the like, comprising at least one transmitter (3) and one receiver (4) of an infrared signal (5), arranged on the outer sides of the access opening (1) controlled by the gate (2) or the like and signaling to the control unit of the actuator (6) of the gate when said signal is blocked by an obstacle, both said transmitter (3) and receiver (4) comprising a flashing luminous indicator light (15) activated during the opening and closing of the gate for indicating gate travel,
wherein the activation of the indicator light (15) of the receiver (4) is controlled by receiving the infrared signal (5) from the transmitter (3) coupled with said receiver (4), so that in case of gate travel with malfunctioning obstacle detection, the indicator light (15) of the transmitter (3) is activated, whereas the indicator light (15) of the receiver (4) is not activated, thereby indicating said malfunctioning of said obstacle detection. - Device, according to claim 1, characterised in that the light beam (5) emitted by the flashing indicator light (15), is deviated in an outward direction from the access opening by a symmetric optical deflector (17).
- Device, according to claim 1 or 2, characterised in that the operation of the flashing luminous indicator light (15) can be selected with many modes, of which at least one is for indicating the opening and closing manoeuvre of the actuator (6), with a fixed flashing frequency and a variable frequency, according to the alignment of the transmitter (3) and receiver (4) pair of the infrared signal (5).
- Device, according to one or more of the previous claims, characterised in
that the flashing of the indicator light of the receiver (4) is synchronised with that of the transmitter (3), by sending a sequence of infrared pulses, with at least two transmission frequencies. - Device, according to claim 4, characterised in that the synchronisation is carried out by transmitting a sequence of pulses, with at least two different signal durations.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITVI2009A000123A IT1397307B1 (en) | 2009-05-28 | 2009-05-28 | INTEGRATED DEVICE FOR SIGNALING AND DETECTING THE PRESENCE OF OBSTACLES FOR A GATE AND SIMILAR SYSTEM |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2256277A1 EP2256277A1 (en) | 2010-12-01 |
EP2256277B1 EP2256277B1 (en) | 2012-12-05 |
EP2256277B9 true EP2256277B9 (en) | 2013-03-27 |
Family
ID=41450012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10161955A Active EP2256277B9 (en) | 2009-05-28 | 2010-05-05 | Integrated device for obstacle detection and travel indication for a motorised gate or the like |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2256277B9 (en) |
HR (1) | HRP20130179T1 (en) |
IT (1) | IT1397307B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20130065A1 (en) * | 2013-03-12 | 2014-09-13 | Bft S P A | OBSTACLE DETECTION DEVICE FOR A MOTORIZED OR SIMILAR GATE |
US10619397B2 (en) | 2015-09-14 | 2020-04-14 | Rytec Corporation | System and method for safety management in roll-up doors |
US11346141B2 (en) | 2018-12-21 | 2022-05-31 | Rytec Corporation | Safety system and method for overhead roll-up doors |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTV20050055A1 (en) * | 2005-04-22 | 2006-10-23 | Nice Spa | LUMINOUS DEVICE. |
US20080186168A1 (en) * | 2007-02-05 | 2008-08-07 | Findisa S.R.L. | Electronic system for controlling gate or door opening |
-
2009
- 2009-05-28 IT ITVI2009A000123A patent/IT1397307B1/en active
-
2010
- 2010-05-05 EP EP10161955A patent/EP2256277B9/en active Active
-
2013
- 2013-03-01 HR HRP20130179AT patent/HRP20130179T1/en unknown
Also Published As
Publication number | Publication date |
---|---|
HRP20130179T1 (en) | 2013-03-31 |
IT1397307B1 (en) | 2013-01-04 |
ITVI20090123A1 (en) | 2010-11-29 |
EP2256277B1 (en) | 2012-12-05 |
EP2256277A1 (en) | 2010-12-01 |
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