WO2012073821A1 - 自動ドア用センサ - Google Patents
自動ドア用センサ Download PDFInfo
- Publication number
- WO2012073821A1 WO2012073821A1 PCT/JP2011/077184 JP2011077184W WO2012073821A1 WO 2012073821 A1 WO2012073821 A1 WO 2012073821A1 JP 2011077184 W JP2011077184 W JP 2011077184W WO 2012073821 A1 WO2012073821 A1 WO 2012073821A1
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- Prior art keywords
- door
- area
- detection
- recognized
- center
- Prior art date
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- 238000001514 detection method Methods 0.000 claims abstract description 164
- 230000005484 gravity Effects 0.000 claims description 26
- 230000002123 temporal effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 30
- 241000287107 Passer Species 0.000 description 21
- 238000010586 diagram Methods 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 238000002372 labelling Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
-
- 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
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
-
- 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
- E05F2015/765—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects using optical 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
- E05Y2900/104—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for elevators
-
- 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 an automatic door sensor, and more particularly to a sensor in which a plurality of detection areas are two-dimensionally configured.
- Patent Document 1 an automatic door sensor having a plurality of detection areas in two dimensions is disclosed in Patent Document 1.
- spot light is radiated in a matrix form to the floor surface near the door of the automatic door device by the light projecting means.
- the reflected light from the floor surface of each spot light is received by the light receiving means. It is determined that a person has been detected by blocking any of the spot lights, and the door is opened according to the determination result.
- the detection area of the sensor for automatic doors (the detection range of the sensor aimed at detecting the traveling part of the door panel and the passerby in the immediate vicinity of the door panel when the automatic door panel is opened or closed for a certain period of time) has a depth of Determined so that the width of the door panel is at least 1000 mm from the center in the thickness direction of the door panel, and the end of the width is 150 mm or more outside the outer edge of the effective opening width of the door panel. It has been.
- the door panel Since a relatively wide area is used as the detection area in this way, even if a person who does not intend to pass through the automatic door passes in front of the door panel in parallel with the door panel, the door panel opens or closes inadvertently or the door is open. Or remain.
- the temperature management in the building where the automatic door is installed is performed by the air conditioning equipment, the temperature management may be impaired.
- the quietness in the building may be impaired. That is, when the effective opening width as described above is used, the environmental load is increased.
- the detection area is narrower than the detection area that meets the safety guidelines, and when the door panel is open, the door panel is inadvertently changed to the size of the detection area that meets the safety guidelines.
- Opening can be eliminated.
- the time from when a person is detected until the person reaches the door is shortened, so the door panel has not yet opened even though the person has reached the door panel.
- sexuality gets worse.
- the door panel remains open as long as there is a person passing in front of the door panel in parallel with the door panel.
- a monitoring row having a plurality of monitoring areas spaced in parallel with the door panel is formed by a plurality of optical sensors spaced in a direction away from the door panel.
- a monitoring row having a monitoring area for detecting a person changes in order from the farthest to the door panel among the plurality of monitoring rows, it is determined that the person is approaching the door panel.
- the end of each of these monitoring rows will be outside 150 mm or more from the outer end of the effective opening width. Therefore, a person who passes through the vicinity of the outer end of the monitoring line toward the fixed walls on both sides of the door panel without going to the center of the door panel may erroneously determine that the person is approaching the door panel.
- the present invention provides an automatic door sensor that does not falsely detect that a person or object is approaching the door while meeting the provisions of the above safety guidelines, and as a result, ensures trafficability.
- the objective is to reduce the environmental load.
- the automatic door sensor of one embodiment of the present invention has a detection means.
- This detection means constitutes a plurality of detection spots arranged two-dimensionally on the floor near the door.
- Each detection spot can detect a person or an object independently by infrared rays.
- the detection means can be constituted by, for example, an infrared light projecting means and a light receiving means, or can be constituted only by an infrared light receiving means.
- the detection means can be attached to the door invisible or on the ceiling.
- Each detection spot is configured to have the same or smaller area than the projection of a person or an object on the floor surface. Accordingly, a person or an object is simultaneously detected by a plurality of consecutive detection spots or a single detection spot, which is smaller than the total number of detection spots.
- the detection spot for detecting the person or object changes.
- the recognition means recognizes an area constituted by the detection spots where the person or object is detected among the detection spots.
- a judging means judges the direction in which the recognized area moves.
- the output means outputs a signal for opening the door only when the recognized moving direction of the region is the direction toward the door.
- the automatic door sensor configured in this way does not determine whether a person or an object is present in a monitoring row formed in parallel to the door, but a single or multiple detection that detects a person or an object. Since the area formed by the spot is recognized and the moving direction of the recognized area is judged two-dimensionally, a person or object moving toward the wall near the door can be moved toward the door. The environmental load can be reduced without erroneously determining that the vehicle is moving.
- the determination means may be configured to calculate the movement direction of the recognized area based on the barycentric position of the recognized area. Since the calculation is based on the change in the center of gravity of the recognized area, even if the shape of the recognized area and the number of detection spots that make up the area change over time, the movement direction can be accurately determined. Can be detected.
- the output means passes the opening of the door within a predetermined time based on the center of gravity position of the recognized area and the moving speed calculated based on the temporal change of the center of gravity position. When it can be predicted, it can be configured to output a signal for opening the door. If comprised in this way, since the opening time of a door can be suppressed to the minimum, an environmental load can be reduced further.
- the output means determines that the position of the center of gravity of the recognized area has stopped within the predetermined area immediately adjacent to the door (the position of the center of gravity has not moved substantially for a predetermined time or more in time series).
- a signal for opening the door may be output.
- the output means outputs a signal for opening the door when the position of the center of gravity of the recognized area is in a predetermined area closest to the door (when the position of the center of gravity exists at a certain time, not in time series). It can also be configured to. With this configuration, even if it becomes impossible to detect the direction of movement of a person or object, the person or object trying to pass through the door (stopped within a predetermined area near the door, If it exists, the possibility of that is high) can be ensured.
- the predetermined area may be preset according to the width of the door opening. By configuring in this manner, the predetermined area may be a narrow range while ensuring the passability, and therefore, the environmental load can be reduced without opening and closing the doors unnecessarily.
- the center of gravity position of the recognized area can be determined by shifting the centroid of the recognized area toward the detection means by a predetermined amount. For example, when the detection means is attached to the door, the detection spot detects the shadow of a person or object formed on the opposite side of the detection means because the detection means faces the floor. There is. If the centroid of the area recognized by the recognition means including the detection spots that detect such shadows is determined as the center of gravity of the recognized area, the position of the person or object can be detected accurately. (For example, it is determined that the door is farther than the actual distance), the door opening operation may be delayed, or the door may be opened for a longer time than originally required. Therefore, in order to remove the influence of the shadow, the center of gravity of the region is shifted to the detection means side.
- the position of the center of gravity of the recognized area can be used as the centroid of the recognized area.
- the detection means is provided on the ceiling, it is not affected by the shadow as described above, and therefore the centroid of the recognized area is set as the center of gravity.
- the recognition unit When there are a plurality of recognized regions, the recognition unit recognizes each region independently, the determination unit independently determines a direction in which the plurality of recognized regions move, and the output The means may be configured to output a signal for opening the door when the moving direction of any of the independently recognized areas is a direction toward the door.
- FIG. 1 is a front view of an automatic door to which an automatic door sensor according to an embodiment of the present invention is attached.
- 2 is a front view and a plan view of the automatic door sensor of FIG.
- FIG. 3 is a plan view showing detection spots formed by the automatic door sensor of FIG.
- FIG. 4 is a block diagram of the automatic door sensor of FIG.
- FIG. 5 is a main flowchart showing the operation of the automatic door sensor of FIG.
- FIG. 6 is a flowchart showing a process executed by the area recognition unit 30 shown in FIG. 4 and an explanatory diagram of the process.
- FIG. 7 is a flowchart showing a process executed by the spot determination unit 32 shown in FIG. 4 and an explanatory diagram of the process.
- FIG. 1 is a front view of an automatic door to which an automatic door sensor according to an embodiment of the present invention is attached.
- 2 is a front view and a plan view of the automatic door sensor of FIG.
- FIG. 3 is a plan view showing detection spots formed by
- FIG. 8 is a flowchart showing the process executed by the region position specifying unit 36 shown in FIG. 4 and an explanatory diagram of the process.
- FIG. 9 is a flowchart showing a process executed by another example 1 of the region position specifying means 36 and an explanatory diagram of the process.
- FIG. 10 is a flowchart showing a process executed by another example 2 of the region position specifying unit 36 and an explanatory diagram of the process.
- FIG. 11 is a flowchart showing a process executed by another example 3 of the region position specifying unit 36 and an explanatory diagram of the process.
- FIG. 12 is a flowchart showing processing executed by another example 4 of the region position specifying means 36 and an explanatory diagram of the processing.
- FIG. 13 is a flowchart showing a process executed by another example 5 of the region position specifying means 36 and an explanatory diagram of the process.
- FIG. 14 is a flowchart showing processing executed by another example 6 of the region position specifying means 36 and an explanatory diagram of the processing.
- FIG. 15 is a flowchart showing processing executed by the passer-by identification means 38 shown in FIG.
- FIG. 16 is a flowchart showing processing executed by the passer-by speed calculation means 40 shown in FIG.
- FIG. 17 is a flowchart showing a process executed by the passer-by stop determining unit 42 shown in FIG.
- FIG. 18 is a flowchart showing processing executed by the passer-by movement determination unit 44 shown in FIG.
- the automatic door sensor 2 is attached to the seamless 6 of the automatic door 4 as shown in FIG.
- the door panels 12 and 12 open and close the door opening 10 (see FIG. 3) between the fixed walls 8 and 8 arranged at intervals.
- the door panels 12 and 12 close the door opening 10 by sliding toward the center side of the door opening 10 from the state located on the fixed walls 8 and 8 side, respectively.
- the door opening 10 is opened by moving the door panels 12 and 12 from the center side of the door opening 10 to the fixed walls 8 and 8 side.
- the automatic door sensor 2 includes a detection unit 14, and the detection unit 14 includes a light projecting unit such as a light projecting unit 16 and a light receiving unit such as a light receiving unit 18.
- the light projecting unit 16 a plurality of, for example, two light projectors 16 a and 16 b are provided in the center of the seamless 6 at intervals along the opening / closing direction of the door panels 12 and 12, as shown in FIG. 2.
- These projectors 16a and 16b emit, for example, near infrared rays in a pulse shape having a predetermined cycle.
- the light projector 16a is a circle with a total of 12 light projecting elements (3 in the moving direction of the door panels 12 and 12 and 4 in the height direction of the door panels 12 and 12).
- the floodlight 16b is a circle having a total of 6 light projecting elements (3 in the moving direction of the door panels 12 and 12 and 2 in the height direction of the door panels 12 and 12). Are arranged in a matrix.
- the elements denoted by reference numerals 13 to 15 are provided at positions somewhat lower than those of the light projecting elements denoted by reference numerals 7 to 9 of the light projector 16a.
- the reference numerals 16 to 18 are provided at positions slightly lower than those of the projector elements 16a to which the reference numerals 10 to 12 are assigned.
- a plurality of, for example, two optical elements, for example, divided lenses 20a and 20b, are arranged on the front surfaces of these projectors 16a and 16b in correspondence with the projectors 16a and 16b, respectively.
- These divided lenses 20a and 20b are divided into a plurality of, for example, four areas, and the optical axes of the respective areas form different angles with respect to the door opening width direction (the moving direction of the door panels 12 and 12).
- four detection areas 22a to 22d are formed on the reference surface, for example, the floor surface, by light from a total of 18 light projecting elements of the light projectors 16a and 16b.
- Each of these detection areas 22a to 22d consists of 18 detection spots.
- the circles shown in the detection areas 22a to 22d in FIG. 3 indicate detection spots, and the numbers shown in these areas indicate the light projecting elements that project the spot light in these areas.
- a total of 72 detection spots are formed, 12 in the door opening width direction and 6 in the direction perpendicular to the floor surface. These detection spots are set to be approximately equal to or smaller than the projected area of a person or object that may pass through the detection areas 22a to 22d (hereinafter collectively referred to as “passersby”) on the floor.
- the detection areas 22a to 22d are formed side by side along the door opening width direction, and are orthogonal to the height direction of the door panels 12 and 12 and the door opening width direction.
- two light receivers 18a to 18d of the light receiving unit 18 are provided on both sides of the light projecting unit 16 in the door opening width direction.
- Each of the light receivers 18a to 18d has three light receiving elements arranged in the door opening width direction.
- the symbols A1 to A3 in the circles represent the light receiving elements of the light receiver 18a
- the symbols with the same signs B1 to B3 represent the light receiving elements of the light receiver 18b
- 1 to C3 represent the light receiving elements of the light receiver 18c
- D1 to D3 represent the light receiving elements of the light receiver 18d.
- the total number of light receiving elements is twelve, which is equal to the number of detection spots arranged in the opening width direction.
- Optical elements for condensing light from different positions in the door opening width direction on the same light receiver are disposed on the front surfaces of the light receivers 18a to 18d, respectively.
- cylindrical lens 24a By the action of the cylindrical lens 24a, reflected light from the six detection spots in the frame denoted by reference numeral A1 in FIG. 3 is incident on the light receiving element A1 of the light receiver 18a.
- reflected light from six detection spots in the frame denoted by reference numeral A2 in FIG. 3 is incident on the light receiving element A2 by the action of the cylindrical lens 24a.
- Reflected light from six detection spots in the frame denoted by reference numeral A3 in FIG. 3 is incident on A3 by the action of the cylindrical lens 24a.
- the cylindrical lenses 24b to 24d allow the reflected light of the six detection spots in the frame labeled B1 to D3 in FIG. 3 to be incident on the light receiving elements B1 to D3.
- Each detection spot is arranged at a predetermined density so that an undetected region does not occur.
- the range of the detection area composed of each detection spot is different between when the door is closed and when it is open, as long as it is set to meet the safety guidelines at least when the door is open. It doesn't matter.
- the object detecting means 26 of the detecting unit 14 controls the light projecting unit 16 and the light receiving unit 18 to perform light projecting / receiving on the detection areas 22a to 22d as shown in FIG. 5 (step S2).
- the 18 light projecting elements of the light projectors 16a and 16b repeatedly project one light in order in a time division manner. That is, as shown in FIG. 2, it is repeated that only one light is projected in order from the one denoted by reference numeral 1 to the one denoted by reference numeral 18.
- the light receiving elements A1 to D3 of the light receivers 18a to 18d are also synchronized with the light projection of the 18 light projecting elements of the light projectors 16a and 16b, and the light receiving elements A1, B1, A2, B2, A3, B3, C1, It is repeated that only one light can be received in the order of D1, C2, D2, C3, and D3.
- the light receiving element A1 receives the reflected light of the detection spot indicated by reference numeral 1 of the detection area 22a
- the light receiving element B1 receives the reflected light of the detection spot indicated by reference numeral 2 of the detection area 22a.
- the light receiving element A2 receives the reflected light of the detection spot to which the reference numeral 3 of the detection area 22a is attached.
- the light receiving element B2 receives the reflected light of the detection spot labeled 1 in the detection area 22b
- the light receiving element A3 receives the reflected light of the detection spot labeled 2 in the detection area 22b, and receives the light receiving element B3. Receives the reflected light of the detection spot labeled 3 in the detection area 22b.
- the light receiving element C1 receives the reflected light of the detection spot labeled 1 in the detection area 22c
- the light receiving element D1 receives the reflected light of the detection spot labeled 2 in the detection area 22c
- the light receiving element C2 detects the light.
- the reflected light of the detection spot to which the code 3 of the area 22c is attached is received.
- the light receiving element D2 receives the reflected light of the detection spot labeled 1 in the detection area 22d
- the light receiving element C3 receives the reflected light of the detection spot labeled 2 in the detection area 22d
- the light receiving element D3 detects The reflected light of the detection spot to which the code 3 of the area 22d is attached is received.
- the light receiving element A1 receives the reflected light of the detection spot indicated by reference numeral 4 of the detection area 22a
- the light receiving element B1 receives the reflected light of the detection spot indicated by reference numeral 5 of the detection area 22a.
- the element A2 receives the reflected light of the detection spot to which the reference numeral 6 of the detection area 22a is attached.
- the light receiving element B2 receives the reflected light of the detection spot with the reference numeral 4 of the detection area 22b
- the light receiving element A3 receives the reflected light of the detection spot with the reference numeral 5 of the detection area 22b, and receives the light receiving element B3. Receives the reflected light of the detection spot labeled 6 in the detection area 22b.
- the light receiving element C1 receives the reflected light of the detection spot indicated by reference numeral 4 of the detection area 22c
- the light receiving element D1 receives the reflected light of the detection spot indicated by reference numeral 5 of the detection area 22c
- the light receiving element C2 detects the light.
- the reflected light of the detection spot to which the code 6 of the area 22c is attached is received.
- the light receiving element D2 receives the reflected light of the detection spot indicated by reference numeral 4 in the detection area 22d
- the light receiving element C3 receives the reflected light of the detection spot indicated by reference numeral 5 in the detection area 22d
- the light receiving element D3 detects the light.
- the reflected light of the detection spot to which the reference numeral 6 of the area 22d is attached is received.
- the object detection means 26 performs object detection determination for each detection spot (step S4).
- a passerby exists in the detection areas 22a to 22d
- the light projected to any one of a plurality of detection spots, or a single one is reflected or absorbed by the passerby.
- the amount of light received by the light receiving elements A1 to D3 of the containers 18a to 18d is different from that when there is no passerby.
- This detection information is supplied to the calculation unit 28.
- the calculation unit 28 and the object detection unit 26 can be realized by, for example, a CPU and a storage unit that stores a program executed by the CPU, for example, a memory.
- the region recognition means 30 of the calculation unit 28 specifies the region where the object is detected (step S6). Specifically, as shown in FIG. 6A, labeling is first performed (step S8). In the labeling, as shown in FIG. 5B, among the detection spots determined to have detected a passerby, all connected detection spots (connected detection spots) are labeled with the same label, and different connections are made. Different labels are attached to the detection spots. In FIG. 4B, the area 1, area 2, area 3, and area 4 show four connected detection spots obtained by labeling. Next, a region having a predetermined area or less (the number of detected spots in the region is a predetermined number or less) is deleted (step S10).
- the deletion is performed because there is a high possibility that a region having a predetermined area or less does not detect a passerby. For example, if the predetermined area is set as the area for three detection spots, the region 3 as the area for one detection spot and the region 4 as the area for two detection spots shown in FIG. 2 is recognized as an area where an object is detected.
- the area identification by the area recognition means 30 ends.
- the spot determination means 32 of the calculation unit 28 determines whether there is a passerby or no passerby for each specified area (step S12). Specifically, as shown in FIG. 7B, a plurality of, for example, four detection spots that are closest to the center of the door panels 12 and 12, for example, four detection spots are set in advance as an immediate determination area. A plurality of continuation determination areas are set in advance so as to surround them. Then, as shown in FIG. 9A, it is determined whether at least one of the detection spots in the immediate determination area belongs to the region recognized by the region recognition means 30 (step S14). If the answer to this determination is yes, it is determined that the passerby is located very close to the door panels 12, 12, that is, the passerby is waiting for the door panels 12, 12 to open.
- step S16 It is determined that there is (step S16). If the answer to the determination in step S14 is no, it is determined whether even one detection spot in the continuation determination area belongs to the region recognized by the region recognition means 30 (step S18). If the answer to this determination is no, it is determined that there is no passerby in the continuation determination area and the immediate determination area, and thus this spot determination ends. If the answer to the determination in step S18 is yes, it is determined whether a predetermined time has elapsed since the detection spot in the continuation determination area belongs to the region recognized by the region recognition means 30 (step S20). . If the answer to this determination is yes, it can be determined that there is a passerby who has stopped for a predetermined time or more in the vicinity of the door panel 12, so that it is determined that there is a passerby in step S16, and this spot determination ends.
- step S22 corresponds to the output means.
- the area position specifying means 36 of the calculation unit 28 specifies the position of each area (step S24). Specifically, first, as shown in FIG. 8A, the centroid of each region is calculated (step S26). For example, as shown in FIG. 5B, the centroid of each detection spot constituting the region 1 is calculated. Next, the centroid of a predetermined area near the automatic door sensor 2 in each region is calculated (step S28). For example, assuming that the predetermined area is four detection spots, the centroid positions of the four detection spots close to the automatic door sensor in the region 1 (four detection spots in the region surrounded by the broken line in FIG. 5B) are calculated. Next, as shown in FIG.
- a straight line is drawn to connect the automatic door sensor 2 and a region, for example, the centroid of the region 1, with the position of the automatic door sensor 2 as the center.
- a circle having a radius r between the sensor 2 and the centroid of the predetermined area is drawn, and the intersection of the circle and the straight line is calculated (step S30).
- This intersection position is set as the passer's position (step S32). That is, the position shifted to the automatic door sensor 2 side from the centroid of the region 1 is set as the passer's position, that is, the center of gravity of the region. The same is done for the other regions.
- the area recognized by the area recognition means 30 includes a shadow formed on the opposite side of the automatic door sensor 2. If the centroid of the area calculated including the shadow is set as the passer's position as it is, the passer's position is an error (the passer who is farther from the automatic door sensor 2 than the original passer's position). Error). Therefore, for example, the predetermined area is set at a position close to the automatic door sensor 2 in the area specified by the area position specifying means 36 based on the size normally considered as the size of the passerby. Ask for centroids.
- the direction in which the automatic door sensor 2 is viewed from the predetermined area may be different from the direction in which the automatic door sensor 2 is actually viewed from a passerby.
- the direction in which the automatic door sensor 2 is viewed from the area including the shadow of the passer-by coincides with the direction in which the automatic door sensor 2 is correctly viewed from the passer-by, as is apparent from FIG. Yes. Therefore, by moving the position of the centroid of the predetermined area on a straight line drawn by the automatic door sensor 2 from the area including the shadow of the passerby, the automatic door sensor 2 has the correct directionality. ing.
- the predetermined area is set to four detection spots based on the size normally considered as the size of the passerby, and the centroid of these four detection spots is calculated in the process, thereby improving the position stability by averaging.
- it is not limited to calculating the centroid of the four detection spots.
- FIGS. 9A to 9C show another example 1 of the region position specifying means 36.
- the area position specifying means 36 in this example is applied when the automatic door sensor 2 is attached to the ceiling, and the shadow described with reference to FIG. 8 is not included in the recognized area. Is the case. Therefore, the centroid of the area is calculated as shown in FIG. FIG. 4C shows the center of gravity of the region 1, and in this case, the center of gravity of the region 1 coincides with the centroid of the region 1.
- the calculated centroid position is set as the passer-by position in the area (step S36). As shown in FIG. 5B, when a plurality of areas are recognized, the processes of steps S34 and S36 are performed for all areas.
- FIGS. 10A to 10C show another example 2 of the region position specifying means 36.
- the automatic door sensor 2 is attached to the intangible 6.
- the centroid of a predetermined area near the automatic door sensor 2 in each region is calculated (step S38). If the predetermined area is, for example, four detection spots, the centroid positions of the four detection spots in the region 1 that are close to the automatic door sensor (four detection spots in the region surrounded by the broken line in FIG. 5C) are calculated. .
- This centroid position is set to the passer's position (step S40). Since the predetermined area is determined based on the size of the person as described with reference to FIG.
- FIGS. 11A to 11C show another example 3 of the region position specifying means 36.
- the automatic door sensor 2 is attached to the intangible 6.
- the centroid of the predetermined area close to the automatic door sensor 2 in each region the centroid of the predetermined area close to the door panels 12 and 12 is calculated as shown by a broken line in FIG. ).
- the calculated centroid position is set as the passer-by position in the area (step S44).
- FIG. 12A to 12C show another example 4 of the region position specifying means 36.
- the automatic door sensor 2 is attached to the intangible 6.
- the centroid of each region is calculated as shown in FIG.
- step S48 the centroid of a predetermined area on the side close to the automatic door sensor 2 and including the outside of the area adjacent to the area.
- step S50 a straight line is drawn to connect the automatic door sensor 2 and the area, for example, the centroid of the area 1, and the automatic door sensor 2 is centered on the position of the automatic door sensor 2.
- a circle having a radius R between the sensor 2 and the centroid of the predetermined area is drawn, and the intersection of this circle and the straight line is calculated (step S50). This intersection position is set to the position of the passerby (step S52).
- FIGS. 13A to 13C show another example 5 of the region position specifying means 36.
- the area position specifying means 36 also calculates the centroid of a predetermined area close to the automatic door sensor 2 in each area in the same manner as shown in FIG. 10 (step S54).
- the predetermined area includes a detection spot outside the area adjacent to the area as shown by being surrounded by a broken line in FIG.
- the calculated centroid position of the predetermined area is set as the passer-by position in the area (step S56). In this way, the centroid position of the predetermined area including the detection spots that are included in the predetermined area but not included in the area is calculated.
- FIGS. 14A to 14C show another example 6 of the region position specifying means 36.
- the automatic door sensor 2 is attached to the intangible 6.
- the area position designation means 36 in this example also calculates the centroid of the predetermined area in the area close to the door, similar to that shown in FIG. 11 (step S58).
- the predetermined area includes a detection spot outside the area adjacent to the area on the side close to the door panels 12 and 12 as shown by being surrounded by a broken line in FIG.
- the calculated centroid position is set as the passer-by position in the area (step S60).
- step S62 when the position of the passerby is specified by the area position specifying unit 36, the passer identification unit 36 of the calculation unit 28, as shown in FIG. Association with the position is performed (step S62). Specifically, as shown in FIG. 15, it is determined whether or not a passerby position obtained in the past exists within a predetermined range from the current passerby position (step S64). If the answer to this determination is no, this process is terminated, and step S2 is executed again, although not shown. If the answer to the determination in step S64 is yes, the passer-by position including the one closest to the current passer-by position is associated with the current passer-by position, and this process ends (step S66). This association is performed for each passer-by position when a plurality of passer-by positions are designated.
- the passer speed calculation means 40 of the calculation unit 28 calculates the moving speed and the moving direction of each passer (step S68). Specifically, as shown in FIG. 16, the moving speed and the moving direction are calculated from the past pass position of the same passer as the current passer and the current passer's current position ( Step S70).
- step S72 it is determined by the passer-by stop determining means 42 of the calculation unit 28 whether the passer-by is stopped as shown in FIG. 5 (step S72). . Specifically, as shown in FIG. 17, it is determined whether or not the calculated movement speed of the passer-by position is equal to or less than a predetermined value (step S74). If the answer to this determination is no, it is determined that no passerby has stopped (step S76), and this process ends. If the answer to the determination in step S74 is yes, there may be a passerby who has stopped, so the calculated passer position is a predetermined area within the detection area, for example, a door panel, for a predetermined time or more.
- step S78 It is determined whether or not it remains within the vicinity of 12, 12 (step S78).
- This predetermined area is set according to the width of the door opening 10 and may be set so as to include the continuation determination area and the immediate determination area described above. If the answer to this determination at step S78 is yes, it is determined that there is a passerby (step S80), and this process is terminated. If the answer to the determination in step S78 is no, step S76 is executed and it is determined that there is no passerby.
- step S22 is executed as shown in FIG. A signal indicating that there is a person is output. Therefore, even if the vehicle stops at a predetermined area, for example, a place other than the vicinity of the door panels 12 and 12, the door panels 12 and 12 are not opened, assuming that no passer-by wants to pass through the door opening 10, thereby reducing the environmental load. be able to.
- the passer movement determination means 44 of the calculation unit 28 determines whether there is a moving passerby (step S82). Specifically, as shown in FIG. 18, it is determined from the calculated passer position, speed, and direction whether the passer is predicted to pass through the door opening after a predetermined time (step). S84). If the answer to this determination is yes, it is determined that there is a passerby (step S86), and this process is terminated. If the answer to this determination is no, it is determined that there is no passerby (step S88), and this process ends.
- step S2 is executed again. If it is determined in step S82 that there is no passerby, step S2 is executed again. If it is determined in step S82 that there is a passer-by, step S22 is executed, and a signal indicating that a passer-by exists is output to the automatic door controller 34, and then step S2 is executed again.
- the door panels 12 and 12 are opened only when it is predicted that the door will pass through the door opening after a predetermined time. Therefore, even if there is a passerby moving toward the fixed wall 8, for example, the door panel 12 , 12 are not opened.
- the two door panels 12 and 12 are slid toward the fixed walls 8 and 8 and the center side of the door opening 12, respectively, but only one door panel is provided, and this door panel opens the door opening 10.
- the door opening 10 is closed by sliding from one fixed wall 8 side to the other fixed wall 8 side, and from the closed state, one door panel is moved from the other fixed wall 8 side to the one fixed wall 8 side.
- the door opening 10 may be opened by sliding.
- the light projecting unit 16 and the light receiving unit 18 are configured by the number of light projecting elements and light receiving elements smaller than the number of detection spots. It can also be constituted by a light receiving element.
- the detection unit 14 is configured by the light projecting unit 16 and the light receiving unit 18. However, the detection unit 14 is configured only by the light receiving unit that uses a pyroelectric sensor that receives infrared rays emitted from a human body or the like as a light receiving element. You can also In the above embodiment, the spot determination means 32 is provided, but it may be removed depending on circumstances. In the above embodiment, the case where the door is opened has been described as an example, but it is needless to say that the present invention can also be applied when the door is open. In this case, as long as there are passers-by, the door is kept open, but if there is only a person crossing the front of the door, the door starts to close.
- the detection unit 14 and the calculation unit 28 may be housed in a single housing, or the detection unit 14 and the calculation unit 28 may be housed independently in the housing, and the detection unit 14 and the calculation unit 28. May be configured to exchange various information such as detection commands and detection information on a data bus such as a CAN bus.
- a data bus such as a CAN bus.
- the detection unit 14 can be exposed to the outside, and the calculation unit 28 can be arranged inside the eyes, so that the automatic door sensor 2 is not conspicuous and the influence on the appearance can be minimized.
- a function for outputting the detection result of each detection spot by the object detection means 26 from the detection unit 14 to the automatic door controller as a detection result is added, there is no need to determine the moving direction of the passerby.
- the detection unit 14 can be shared between the case where it is sufficient to detect only the presence of a passer-by and the case where it is necessary to determine the direction of the passer's movement as in the present application, thereby saving the trouble of inventory management and the like. .
- only the detection unit 14 can be installed, and if necessary, a calculation unit 28 can be added at a later date, making it easy to respond to changes in the installation environment such as traffic, and removing the existing automatic door sensor for disposal Since there is no need to do so, the impact on the global environment can be minimized.
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Abstract
Description
Claims (9)
- ドア近傍の床面に二次元に配列された複数の検知スポットを構成し、前記各検知スポットは、人または物体を赤外線によりそれぞれ独立して検知可能である検知手段と、
前記各検知スポットのうち前記人または物体を検知した複数の検知スポットによって構成される領域を、認識する認識手段と、
前記認識された領域が移動する方向を判断する判断手段と、
前記認識された領域の移動方向が、前記ドアに向かう方向であるときのみ、前記ドアを開く信号を出力する出力手段とを、
具備する自動ドア用センサ。 - 請求項1記載の自動ドア用センサにおいて、前記判断手段は、前記認識された領域の移動方向を、前記認識された領域の重心位置を基に算出する自動ドア用センサ。
- 請求項2記載の自動ドア用センサにおいて、前記出力手段は、前記認識された領域の重心位置と、この重心位置の時間変化に基づいて算出された移動速度とに基づいて、前記重心位置が所定時間内に前記ドアの開口を通過することが予測できるとき、前記ドアを開く信号を出力する自動ドア用センサ。
- 請求項2記載の自動ドア用センサにおいて、前記出力手段は、前記認識された領域の重心位置が、前記ドアの直近の所定エリア内で停止しているとき、前記ドアを開く信号を出力する自動ドア用センサ。
- 請求項2記載の自動ドア用センサにおいて、前記出力手段は、前記認識された領域の重心位置が前記ドアの直近の所定エリアにあるとき、前記ドアを開く信号を出力する自動ドア用センサ。
- 請求項4または5記載の自動ドア用センサにおいて、前記所定エリアは、前記ドアの開口の幅に応じて予め設定されている自動ドア用センサ。
- 請求項2乃至6いずれか記載の自動ドア用センサにおいて、前記認識された領域の重心位置は、前記認識された領域の図心を所定量だけ前記検知手段側にオフセットさせたものである自動ドア用センサ。
- 請求項2乃至6いずれか記載の自動ドア用センサにおいて、前記認識された領域の重心位置は、前記認識された領域の図心である自動ドア用センサ。
- 請求項2乃至5記載の自動ドア用センサにおいて、前記認識された領域が複数存在する場合、それぞれの領域を独立して前記認識手段が認識し、前記判断手段が、前記認識された複数の領域が移動する方向を独立して判断し、前記出力手段が、前記独立して認識された領域のいずれかの移動方向が、前記ドアに向かう方向であるとき、前記ドアを開く信号を出力する自動ドア用センサ。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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US13/990,989 US8955253B2 (en) | 2010-12-03 | 2011-11-25 | Sensor for use with automatic door |
JP2012546828A JP5661799B2 (ja) | 2010-12-03 | 2011-11-25 | 自動ドア用センサ |
CA2819574A CA2819574C (en) | 2010-12-03 | 2011-11-25 | Sensor for use with automatic door |
RU2013125718/12A RU2551835C2 (ru) | 2010-12-03 | 2011-11-25 | Датчик для использования с автоматической дверью |
EP11844312.6A EP2647787B1 (en) | 2010-12-03 | 2011-11-25 | Sensor for automatic door |
CN201180058339.1A CN103237948B (zh) | 2010-12-03 | 2011-11-25 | 自动门用传感器 |
KR1020137014081A KR101529804B1 (ko) | 2010-12-03 | 2011-11-25 | 자동 도어용 센서 |
HK14100291.0A HK1187388A1 (en) | 2010-12-03 | 2014-01-10 | Sensor for automatic door |
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JP2010270226 | 2010-12-03 | ||
JP2010-270226 | 2010-12-03 |
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PCT/JP2011/077184 WO2012073821A1 (ja) | 2010-12-03 | 2011-11-25 | 自動ドア用センサ |
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US (1) | US8955253B2 (ja) |
EP (1) | EP2647787B1 (ja) |
JP (1) | JP5661799B2 (ja) |
KR (1) | KR101529804B1 (ja) |
CN (1) | CN103237948B (ja) |
CA (3) | CA2819574C (ja) |
HK (1) | HK1187388A1 (ja) |
RU (1) | RU2551835C2 (ja) |
WO (1) | WO2012073821A1 (ja) |
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- 2011-11-25 RU RU2013125718/12A patent/RU2551835C2/ru not_active IP Right Cessation
- 2011-11-25 JP JP2012546828A patent/JP5661799B2/ja active Active
- 2011-11-25 CN CN201180058339.1A patent/CN103237948B/zh active Active
- 2011-11-25 US US13/990,989 patent/US8955253B2/en active Active
- 2011-11-25 EP EP11844312.6A patent/EP2647787B1/en active Active
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US10196037B2 (en) * | 2012-10-26 | 2019-02-05 | Jaguar Land Rover Limited | Vehicle access system and method |
CN104267618B (zh) * | 2014-07-31 | 2017-06-13 | 广东美的制冷设备有限公司 | 基于红外定位的语音控制方法和系统 |
CN104267618A (zh) * | 2014-07-31 | 2015-01-07 | 广东美的制冷设备有限公司 | 基于红外定位的语音控制方法和系统 |
JP2018123653A (ja) * | 2017-02-03 | 2018-08-09 | ナブテスコ株式会社 | 自動ドアシステムおよび自動ドアシステムの制御方法 |
JP7111538B2 (ja) | 2018-07-18 | 2022-08-02 | ナブテスコ株式会社 | 検知状態記録装置および自動ドア装置 |
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JP7201403B2 (ja) | 2018-11-14 | 2023-01-10 | ナブテスコ株式会社 | 自動ドアシステム、自動ドアセンサ、自動ドア装置および自動ドアシステムの制御方法 |
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CN112160672A (zh) * | 2020-08-18 | 2021-01-01 | 杭州炸裂科技有限公司 | 一种自动门控制系统 |
Also Published As
Publication number | Publication date |
---|---|
CN103237948A (zh) | 2013-08-07 |
US8955253B2 (en) | 2015-02-17 |
CA2819574A1 (en) | 2012-06-07 |
US20130255154A1 (en) | 2013-10-03 |
JP5661799B2 (ja) | 2015-01-28 |
CA2900159C (en) | 2017-06-27 |
EP2647787A4 (en) | 2015-04-08 |
HK1187388A1 (en) | 2014-04-04 |
KR20130086361A (ko) | 2013-08-01 |
RU2551835C2 (ru) | 2015-05-27 |
CA2900162A1 (en) | 2012-06-07 |
CA2900159A1 (en) | 2012-06-07 |
EP2647787B1 (en) | 2020-06-17 |
EP2647787A1 (en) | 2013-10-09 |
KR101529804B1 (ko) | 2015-06-17 |
RU2013125718A (ru) | 2015-01-10 |
CA2900162C (en) | 2016-11-15 |
CA2819574C (en) | 2016-01-19 |
CN103237948B (zh) | 2015-05-27 |
JPWO2012073821A1 (ja) | 2014-05-19 |
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