JP2003021686A - Method for setting detection area for automatic door, and sensor for automatic door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily set a detection area. SOLUTION: A wide area 10 including doors 4a and 4b to open/close an opening 5 is set as collection of a plurality of small detection areas 12 disposed in a matrix. A plurality of small detection areas 12 are designated in the wide area 10 to set an effective detection area as the maximum range for a detection area to detect passers-by, and within the effective detection area, the small detection areas 12 to detect moving routes of the doors 4a and 4b which are moving are nullified to set the detection area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of setting a detection area for opening and closing an automatic door and a sensor for an automatic door in which such a detection area can be set.

[0002]

2. Description of the Related Art In an automatic door, in order to open and close the door, it is necessary to detect that a passerby approaches the door, for example. For this detection, a sensor for detecting a passerby may be provided. As this sensor, for example, JP-A-1
As disclosed in Japanese Laid-Open Patent Publication No. 1-166979, there is one in which a large number of small detection areas are formed in a matrix. According to this publication, in a sliding door type automatic door, all of a large number of small detection areas are not used for detecting a passerby, but have a width corresponding to the width of an opening to which the door is attached and have a predetermined depth. The area with is used as a detection area for detecting a passerby. In order to set this detection area, identification bodies are arranged at positions corresponding to the four corners of this detection area, and the inside of the small detection areas that recognize these identification bodies is set as the detection area.

[0003]

In this sensor, a large number of identification bodies must be used for setting the detection area,
The setting work is troublesome. In addition, the identification body must be arranged so as not to include the movement path of the door, and the arrangement work must be careful. There are various types of automatic doors other than the sliding door type. If the door does not move linearly, such as a circular door, folding door or glide door, and revolving door, the identification body must be arranged along the movement path of the non-linear door, and a large number of identifications are required. It requires a body and is difficult to adjust.

An object of the present invention is to provide a detection area setting method and a sensor for an automatic door which can easily set the detection area.

[0005]

In a detection area setting method for an automatic door according to one aspect of the present invention, a wide area is set by a set of a plurality of small detection areas arranged in a matrix. A door that opens and closes the opening formed in the fixed portion is included in the wide area. This wide area can be set by arranging a sensor forming a plurality of small detection areas in the vicinity of the opening. Each small detection area can be formed by each detection element whose sensor corresponds to each small detection area. For example, as the detection element, a pair of light projecting element and light receiving element can be used for one small detection area, or one pyroelectric sensor can be used for one small detection area. . Alternatively,
C with one small detection area as one or more pixels
Image sensors such as CD, C-MOS or artificial retina can also be used. In the wide area, the plurality of small detection areas are designated to set an effective detection area which is the maximum detection area for detecting a passerby. The small detection area can be specified, for example, by transmitting a signal from the position of the small detection area to be specified to the sensor, or to the position of the small detection area to be specified. It can also be performed by arranging an identifier. When an image sensor such as a CCD is used, it is desirable to use a light emitting body as an identification body. In the valid detection area, the detection area is set by invalidating the small detection area for detecting the moving path of the moving door.
For example, when the door is moved, the output signal of the detection element corresponding to the small detection area where the door has passed in the effective detection area changes before and after passing, so this output signal corresponds to the changed detection element. Yes The small detection area is invalid. As the door, various kinds of doors such as sliding doors, circular doors, folding doors, glide doors, revolving doors, and the like that perform linear movement and non-linear movement can be used.

According to this detection area setting method, the person who sets the detection area only sets the effective detection area that represents the maximum detection area, and then only moves the door.
The detection area is set automatically. Therefore, the work of setting the detection area is simplified.

In the automatic door detection area setting method according to another aspect of the present invention, a wide area is set as in the above aspect. Next, of the wide area, the small detection area for detecting the movement route of the door is invalidated. The plurality of small detection areas are designated in the remaining wide area, and a detection area for detecting a passerby is set in a region defined by the designated plurality of small detection areas. Also in this mode, various modifications described in the above modes are possible.

Also in this aspect, the person who sets the detection area can set the detection area only by designating some small detection areas after moving the door, and the setting work is easy.

In still another aspect of the present invention, the effective detection area is set by a set of a plurality of small detection areas arranged in a matrix. The effective detection area is the maximum detection area for detecting a passerby, and includes a door inside which opens and closes an opening formed in the fixed portion. For example, it is possible to provide a sensor having a plurality of detection elements so as to form a small detection area and to set all the small detection areas of this sensor as effective detection areas. Among the valid detection areas, the small detection area for detecting the movement route of the door is invalidated and the detection area is set.

In this aspect, the detection area can be set by moving the door after setting the effective detection area, which facilitates the setting work.

An automatic door sensor according to another aspect of the present invention includes a detection element that forms an assembly of a plurality of small detection areas arranged in a matrix within a range including a door that opens and closes an opening. There is. This detection element is provided corresponding to each small detection area. For example, a pair of light emitting element and light receiving element is used for one small detection area, or one pair is provided for one small detection area. A pyroelectric sensor can be used. Alternatively, one small detection area can be configured by one or a plurality of pixels and an image sensor such as CCD, C-MOS, artificial retina can be used. further,
Area setting means is provided. The area setting means sets a detection area for detecting a passerby, and the detection area is within an area defined by a plurality of designated small detection areas in the aggregate and a movement path of the door. The small detection area for detecting is invalid. Examples of the area setting means include, for example, an effective detection area setting means that defines the maximum area of the detection area in a set of small detection areas, and a small detection area in the effective detection area that exists on the movement path of the door And a revocation means for revoking what is done. Alternatively, in the aggregate of small detection areas, the invalidation means for invalidating the small detection areas existing on the movement path of the door and the desired one of the small detection areas which are not invalidated in the aggregate are detected. Area setting means for setting an area can be included. Alternatively, it may be provided with an invalidating means for invalidating the small detection areas existing on the movement path of the door among the small detection area aggregates.

In the sensor thus constructed, the detection area can be set by the area setting means,
In addition, in the area setting, the small detection area in which the door movement route is detected is invalid, so that it is not necessary to individually invalidate the small detection area through which the door movement route passes, and the setting work can be easily performed.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Sensor 8 according to one embodiment of the present invention
Is attached to an automatic door as shown in FIGS. 1 and 2, for example. This automatic door is, for example, a double-sliding sliding door type, and has a fixed eyeless 2. A rectangular opening 5 through which a passerby passes is formed between the seamless space 2 and the floor surface 3. The doors 4a and 4b close the opening 5, and when a passerby approaches the opening 5, the doors 4a and 4b linearly slide in the left-right opposite directions to open the opening 5. It is to be noted that reference numerals 6a and 6b in FIG. 1 denote fixed portions, such as walls, in which the openings 5 are formed.

A sensor 8 is provided on one side surface of the seamless 2, which is located above the center of the opening 5, for example, on the outdoor side. As shown in FIGS. 1 and 2, the sensor 8 forms a wide area 10 extending from the surface on which the sensor 8 is provided (outdoor side) to the surface (indoor side) on the opposite side beyond the opening 5. There is.
The wide area 10 is formed by a plurality of small detection areas 12 arranged in a matrix. Each small detection area 10 has a substantially conical shape extending from the floor surface 3 to the sensor 8. When an object exists in any of these small detection areas 10, the sensor 8 generates an object detection signal.

As shown in FIGS. 3A and 3B, the sensor 8 includes a light projecting section 14 and a light receiving section 16 which are arranged in a line. The light projecting unit 14 includes, as a plurality of detecting elements, a plurality of light projecting elements 18 arranged in a matrix, for example, an infrared light emitting diode. Further, the light receiving unit 16 has a light receiving element 20 as a plurality of detection elements, and a photodiode as an example. Each light receiving element 20
Are arranged in a matrix so as to correspond to the respective light projecting elements 18. The light projecting element 18 projects a light beam, for example, an infrared ray toward the floor surface 3 via a diffusing means, for example, a convex lens 22. When there is no object, these infrared rays are reflected by the floor surface 3 and converged by a converging means such as the convex lens 2
The light is received by the corresponding light receiving element 20 of the light receiving unit 16 via 4. In this way, each small detection area 12 is formed by the light projecting element 18 and the light receiving element 20 corresponding to each other. When an object exists in each small detection area 12,
The amount of light received by the light receiving element 20 corresponding to the small detection area 12 changes. This makes it possible to determine whether or not an object exists in the small detection area 12.

As shown in FIG. 4, the light projecting section 14 and the light receiving section 16 are controlled by a control section 28 via a light projecting and receiving circuit 26. The control unit 28 includes a CPU 28a and a ROM 28b.
And a RAM 28c, and a light projecting / receiving circuit 26 and an output circuit 32 according to a program stored in the ROM 28b.
To control. The light projecting / receiving circuit 26 causes each light projecting element 18 of the light projecting unit 14 to emit light in accordance with an instruction from the control unit 28.
The light receiving signal from each light receiving element 20 is supplied to the control unit 28. The control unit 28 processes the light receiving signal from the light receiving element 20 supplied from the light projecting and receiving circuit 26, and when it determines that an object exists, outputs an object detection signal to a door controller (not shown) via the output circuit 32. To supply.

Each small detection area 12 of the wide area 10 is
For example, 192 pieces are formed, and as shown in FIG. 5A, for example, 16 rows are arranged in the opening direction (the direction in which the doors 4a and 4b slide). Further, for example, 12 rows are arranged in the passing direction (direction perpendicular to the sliding direction of the doors 4a and 4b). Of the 12 small detection areas 12 in the traffic direction, the wall 6a,
6b, doors 4a, 4b, a row of small detection areas 1 on the opening 5
2 are arranged, and further, two rows of small detection areas are arranged on the indoor side beyond the one row of small detection areas 12. That is, the wide area 10 includes the opening 5 inside 1
It has a row of small detection areas and a predetermined depth in the passage direction, for example, two rows of small detection areas 12.

Actually, the small detection area 12 in the detection area used for detecting the presence / absence of an object is shown by hatching in FIG. 5 (c). Note that the small detection area 12 indicated by a white circle is controlled by the control unit 28 so that the corresponding light projecting element does not project light, or even if light is projected, the control unit 28 outputs a light reception signal corresponding thereto. Depending on whether it is controlled not to process in
Although the received light signal is processed at 8, it is invalidated by not outputting it.

The detection area is set, for example, as follows. When the doors 4a and 4b are opened with the sensor 8 attached to the outdoor side surface of the blind 2, as shown by hatching in FIG.
Small detection area 1 where a and 4b and walls 6a and 6b exist
The light receiving elements 20 corresponding to the small detection areas 12 other than 2 are
Each receives the reflected light from the floor surface.

In this state, for example, an effective detection area defining a maximum area as a detection area is set as shown in FIG. 5 (b). This setting is performed using the remote control transmitter 34 shown in FIG. 4, for example. This remote control transmitter 34 is capable of transmitting an infrared ray having a light amount different from the reflected light from the floor surface 3, and a person holding the remote control transmitter 34 can detect the sensor 8 from a specific small detection area 12 When the infrared light is projected toward the, the infrared light is received by the light receiving element 20 in the sensor 8 corresponding to the specific small detection area 12 due to the straightness of the infrared light.

The effective detection area has a width corresponding to a row between the outer sides of the openings 5 and is located one outside each of the both ends of the opening 5. The effective detection area is located in the sixth column from the outdoor side walls 6a and 6b and the wide area on the indoor side. Assuming a rectangular shape with a depth between the end of 10 and
Of the four corners of this effective detection area, the small detection areas 12 corresponding to the two corners on the outside of the room, that is, the rows that are one outside each of the ends of the opening 5, respectively, and the walls 6a, 6b to 6b.
From the small detection area 12 (indicated by a filled triangle in FIG. 5B) in the row, the sensor 8
Infrared is sent to. As a result, the control unit 28
Is a small detection area 12 shown by hatching in FIG.
The area surrounded by the thin line is recognized as the effective detection area.

Since the remaining two corners of the effective detection area are located at the indoor end of the wide area 10, it is not necessary to specify the depth to the indoor side, and the width is the same as that of the transmitter 34. Since it is known by the operation of, it is not necessary to specify the remaining two corners of the effective detection area. Of course, it is also possible to specify all four corners. Further, without using the remote transmitter 34, it is possible to set the effective detection area by arranging the identifiers at two or four corners of the above-mentioned effective detection area.

Then, after confirming that there is no passerby in the wide area 10, the doors 4a and 4b are closed,
Door 4 of each small detection area 12 in the effective detection area
The door 4 is placed in the small detection area 12 on the movement path of a and 4b.
a and 4b are present. These received light amounts are different from those when the floor surface 3 is detected. Similarly, the small detection area 12 in the effective detection area on the indoor side of the doors 4a and 4b also detects the doors 4a and 4b, and the received light amount differs from that when the floor surface 3 is detected. Become. Therefore, the control unit 28 invalidates the small detection areas in which the amount of received light is changed by the above-described method, and the remaining small detection areas are detected as indicated by crossing lines in FIG. 5C. And In this way, the control unit 28 functions as an area setting unit including the valid detection area setting unit and the invalidation unit. The doors 4a and 4b are not detected in any of the small detection areas 12 in this detection area.

Of the small detection areas in the effective detection area, the control unit 28 invalidates the small detection area 12 in which the light receiving amount of the corresponding light receiving element 20 is changed by the movement of the doors 4a and 4b, so that the detection area Since the edges on the side of the doors 4a and 4b are automatically set, it is not necessary to operate the remote transmitter 34 on the moving route of the doors 4a and 4b or to arrange the identifying body on the moving route. The setting work can be done easily.

Although the doors 4a and 4b are moved from the open state to the closed state in the above example, the doors 4a and 4b can be moved from the closed state to the open state. Furthermore, although the effective detection area was set and the doors 4a and 4b were moved after that, the edges of the detection areas on the doors 4a and 4b side were demarcated by moving the doors 4a and 4b conversely, and after that, One row outside from both sides of the doors 4a and 4b, and the small detection area 1 in the sixth column from the doors 4a and 4b to the outdoor side.
The detection area can also be set by operating the remote transmitter 34 or arranging the identification body in 2.

There are three rows of invalidated small detection areas on the indoor side along the opening 5. These are, for example, passersby standing in the vicinity of the opening 5 when the opening 5 is opened. Can be used as a safety sensor to detect

The second embodiment is shown in FIGS. 6 (a) to 6 (d).
Shown in. In this embodiment, the automatic door is a round door. This circular door has arcuate wall bodies 106a and 106b, and an opening 105 is formed in a part thereof.
Arc-shaped doors 104a and 104b are arranged so as to open and close 5. The doors 104a and 104b are the wall body 106.
Since it moves along a and 106b, it makes a non-linear motion.

The sensor (not shown) used has the same structure as the sensor 8 of the first embodiment, and forms a wide area consisting of a plurality of small detection areas 112 arranged in a matrix. .

As shown in FIG. 6A, the sensor is arranged so that at least the opening 105 is included in this wide area. In this arrangement state, FIG.
When the doors 104a and 104b are closed as shown in (a), the corresponding light receiving element receives the reflected light from the floor surface in the small detection area 112 shaded with diagonal lines. The small detection areas are the doors 104a, 1 as shown by the dotted lines.
The light receiving element receives the reflected light from 04b and the walls 106a and 106b. Other configurations are similar to those of the first embodiment, and detailed description thereof will be omitted.

In this state, in order to set a rectangular effective detection area in which one edge overlaps with one edge of the wide area as shown in FIG. 6B, among the effective detection areas, Small detection area 112 corresponding to two corners of the other edge that does not overlap one edge of the wide area
Is designated by a remote transmitter or an identifier not shown. As a result, the control unit in the sensor sets a portion (a portion surrounded by a thin line) other than the small detection area 112 indicated by a white circle as the effective detection area as shown in FIG. 6B. In this effective detection area, like the small detection area 112 indicated by hatching, the light receiving element receives the reflected light from the floor and the doors 104a and 104b are closed. In some cases, as indicated by the dotted line, the light receiving element receives the reflected light from the doors 104a and 104b and the walls 106a and 106b.

In this state, after confirming that no passerby exists in the wide area, the doors 104a, 104a
When b is opened as shown in FIG. 6C, the small detection area in the effective detection area and the movement paths of the doors 104a and 104b and the small detection areas on the outer side (the upper side in FIG. 6C). The light receiving element 112 receives the light reflected from the floor surface, and the light receiving amount is different from that before the doors 104a and 104b are opened. Also, the wall 10
The small detection areas 112 on the inner surfaces of 6a and 106b are
The door 104 was used to receive the light reflected from the floor until now.
doors 104a, 10 due to the movement of a and 104b.
The reflected light from 4b is received, and the door 104a,
The amount of received light is different from that before the opening of 104b. Therefore, of the small detection areas within the effective detection area,
The area where the amount of received light does not change, which is indicated by the crossing line in FIG. 6D, does not detect the doors 104a and 104b, and is used as a detection area for detecting a passerby. .

Also in this embodiment, if the work of designating the small detection area for defining the effective detection area and the work of moving the doors 104a and 104b are performed, the detection area can be set automatically. It is possible and the setting work is easy. In this embodiment, the door is moved from the closed state to the opened state, but the door may be moved from the opened state to the closed state. Further, the detection area can be set by moving the doors 104a and 104b and then designating the small detection area.

The third embodiment is shown in FIGS. 7 (a) to 7 (c).
Shown in. In this embodiment, the automatic door is a folding door type. This folding door has walls 206a and 206b, an opening 205 is formed in a part thereof, and a pair of doors 204a and 204b are arranged so as to open and close the opening 205. The doors 204a and 204b make a non-linear movement as shown in FIG. 7 (c).

The sensor (not shown) used has the same structure as the sensor 8 of the first embodiment, and forms a wide area composed of a plurality of small detection areas 212 arranged in a matrix. . The other structure is the same as that of the first embodiment.

As shown in FIG. 7A, the sensor is arranged so that at least the opening 205 is included in this wide area. In this arrangement, the door 204
When a and 204b are closed, the corresponding light receiving element receives the reflected light from the floor surface in the small detection area 212 shaded with diagonal lines, and the remaining small detection areas are shown in dotted lines. As described above, the light receiving element receives the reflected light from the doors 204a and 204b.

In this state, in order to set a rectangular effective detection area, as shown by the thin lines in FIG. 7B, the doors 204a and 204b of the effective detection areas are set.
Small detection area 21 corresponding to the two corners of the edge opposite to
2 is designated by a remote transmitter or an identifier not shown. The four corners of the effective detection area may be designated by the remote transmitter or the identification body. As a result, the control unit in the sensor sets a portion other than the small detection area 212 indicated by a white circle as the effective detection area as shown in FIG. 7B. In this effective detection area, like the small detection area 212 indicated by hatching, the light receiving element receives the reflected light from the floor surface and the doors 204a and 204b are closed. The door 2 as shown by the dotted line
In some cases, the light receiving element receives the reflected light of 04a and 204b.

In this state, after confirming that no passerby exists in the wide area, the doors 204a, 204a
When b is opened as shown in FIG. 7C, the light receiving element of the small detection area 212 in the movement path of the doors 204a and 204b among the small detection areas in the effective detection area shows the reflected light from the floor surface. Door 20 that receives light or moves
The reflected light from 4a and 204b is received, and the amount of received light is different from that before the doors 204a and 204b are opened. Therefore, in the small detection area in the effective detection area, the area where the amount of received light has not changed is shown in FIG.
This is used as a detection area for detecting a passerby because it is an area marked with a cross line and does not detect the doors 204a and 204b.

Also in this embodiment, if the work of designating the small detection area for defining the effective detection area and the work of moving the doors 204a and 204b are performed, the detection area can be set automatically. It is possible and the setting work is easy. Note that, also in this embodiment, the door 204a,
It is also possible to move 204b from the open state to the closed state. Further, the detection area may be set by operating the remote transmitter or the like after moving the doors 204a and 204b.

The fourth embodiment is shown in FIGS. 8 (a) to 8 (c).
Shown in. In this embodiment, the automatic door is a so-called glide door, which is a combination of the elements of the movement of the swing door and the sliding door. This door has walls 306a and 306b,
An opening 305 is formed in a part thereof, and a pair of doors 304a and 304b are arranged so as to open and close the opening 305. The doors 304a and 304b make a non-linear movement as shown in FIG. 8 (c).

The sensor (not shown) used has the same structure as the sensor 8 of the first embodiment and forms a wide area consisting of a plurality of small detection areas 312 arranged in a matrix. . The other structure is the same as that of the first embodiment.

As shown in FIG. 8A, the sensor is arranged so that at least the opening 305 is included in this wide area. In this arrangement, the door 304
When a and 304b are closed, the corresponding light receiving element receives the reflected light from the floor surface in the small detection area 312 hatched, and the light receiving elements in the remaining small detection areas 312 are , The reflected light from the doors 304a and 304b and the wall bodies 306a and 306b is received.

In this state, in order to set a rectangular effective detection area as shown by the thin line in FIG. 8B, the doors 304a and 304b of this effective detection area are set.
Small detection areas 312 corresponding to the two corners of the edge on the opposite side are designated by a remote transmitter or an identifier not shown. Alternatively, the four corners of the effective detection area may be designated by a remote transmitter or an identifier. As a result, the control unit in the sensor sets a portion other than the small detection area 312 indicated by a white circle as the effective detection area as shown in FIG. 8B. In this effective detection area, like the small detection area 312 shown by hatching, the light receiving element receives the reflected light from the floor surface, and the doors 304a, 3b.
There is a case where the light receiving element receives the reflected light from the doors 304a and 304b as indicated by the dotted line by closing 04b and 04b.

In this state, after confirming that no passerby exists in the wide area, the doors 304a, 304
When b is opened as shown in FIG. 8C, the light receiving element of the small detection area 312 in the movement path of the doors 304a and 304b among the small detection areas in the effective detection area is reflected by the floor surface. Door 30 that receives light or moves
The reflected light from 4a and 304b is received, and the amount of received light is different from that before the doors 304a and 304b are opened. Therefore, in the small detection area in the effective detection area, the area where the amount of received light has not changed is shown in FIG.
This is used as a detection area for detecting a pedestrian because it is an area with a crossing line and does not detect the doors 304a and 304b.

Also in this embodiment, if the work of designating the small detection area for defining the effective detection area and the work of moving the doors 304a and 304b are performed, the detection area can be set automatically. It is possible and the setting work is easy. The doors 304a and 304b can be moved from the open state to the closed state. Further, the doors 304a, 30
After moving 4b, the detection area may be set by operating the remote transmitter or arranging the identification body.

In each of the above embodiments, the sensor is provided only on one surface side of the automatic door, but it may be provided on both surfaces respectively. Further, in each of the above-described embodiments, the present invention is applied to the sliding door, the circular door, the folding door, and the glide door, but the present invention can be applied to other doors, for example, revolving doors. In the above-described embodiment, the present invention is applied to the setting of the detection area for opening and closing the door. However, for example, the detection area for detecting a pedestrian standing near the opening when the door is open. The present invention can be implemented in the setting of.

Further, in each of the above-mentioned embodiments, the effective detection area is set in a part of the aggregate of the small detection areas formed by the sensor. It is also possible to use all the small detection areas to be used as effective detection areas and invalidate the effective detection areas on the door movement route to form the detection areas. In this case, it is not necessary to set the effective detection area by using the remote transmitter or the identification body, and the detection area is automatically set only by moving the door.

[0047]

As described above, according to the present invention, the detection area can be easily set only by moving the door and performing a very simple setting operation.

[Brief description of drawings]

FIG. 1 is a front view of an automatic door in which a sensor according to a first embodiment of the present invention is implemented.

FIG. 2 is a side view of the automatic door of FIG.

3A and 3B are a bottom view and a front view of a detection element of a sensor used in the automatic door of FIG.

FIG. 4 is a block diagram of the sensor of FIG.

5 is a diagram showing a process of setting a detection area in the automatic door of FIG.

FIG. 6 is a diagram showing a process of setting a detection area in an automatic door using the sensor according to the second embodiment of the present invention.

FIG. 7 is a diagram showing a process of setting a detection area in an automatic door using the sensor according to the third embodiment of the present invention.

FIG. 8 is a diagram showing a process of setting a detection area in an automatic door using the sensor according to the fourth embodiment of the present invention.

[Explanation of symbols]

4a 4b door 8 sensors 12 small detection areas 14 Projector 16 Light receiving part 18 Projector element 20 Light receiving element 28 Control unit (area setting means)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kenji Nishigaki             5-7-20 Motomachi-dori, Chuo-ku, Kobe-shi, Hyogo Asahi             Within Optical Electric Co., Ltd. F-term (reference) 2E052 AA02 BA06 EA05 EA15 EB01                       EC03 GA06 GB02 GC01 KA12                       KA13 KA15                 5J084 AA01 AB07 AC07 AD03 BA07                       BA20 BA36 BA40 BB01 DA01                       DA07 EA07

Claims (4)

[Claims] 1. A wide area including a door for opening and closing an opening formed in a fixed portion is set by a set of a plurality of small detection areas arranged in a matrix, and the plurality of small areas are set in the wide area. Specify the detection area, set the effective detection area which is the maximum area of the detection area to detect passersby, and invalidate the small detection area that detects the moving route of the moving door in the effective detection area. A method for setting an automatic door detection area for setting the detection area. 2. A wide area including a door for opening and closing an opening formed in a fixed portion is set by a set of a plurality of small detection areas arranged in a matrix, and the door is included in the wide area. The small detection area for detecting the movement route of is invalidated, a plurality of the small detection areas are designated in the remaining wide area, and a passerby is detected in an area defined by the designated small detection areas. How to set the detection area How to set the detection area for automatic doors. 3. An effective detection, which is a maximum area of a detection area for detecting a pedestrian, including a door that opens and closes an opening formed in a fixed portion by a set of a plurality of small detection areas arranged in a matrix. An automatic door detection area setting method in which an area is set, and the small detection area for detecting the movement route of the door moving in the valid detection area is invalidated to set the detection area. 4. A detection element forming an aggregate of a plurality of small detection areas arranged in a matrix in a range including a door that opens and closes an opening, and a plurality of designated small detections in the aggregate. An automatic door sensor having an area setting means for setting a detection area for detecting a passerby in a region defined by the area and for which the small detection area for detecting the movement route of the door is invalid .