JP5208853B2 - Elevator safety device and safety control method - Google Patents

Description

  The present invention relates to an elevator safety device and safety control method for avoiding danger at an entrance / exit where a door is installed, and in particular, an elevator safety device and safety control for avoiding an accident caused by a string-like foreign object such as a pet lead being caught. It is about the method.

  A sensing bar called a safety shoe is provided at the door end of the elevator in order to prevent passengers and passenger baggage from being caught in the door when the elevator closes the door. When the safety shoe is pushed in the door opening direction when the passenger or the like touches the front end surface of the door, the closing of the door is stopped and the door is reopened to prevent the passenger from being caught.

  By the way, it is difficult to detect a thin string-like foreign object such as a pet lead with the above-described safety shoe. For this reason, the inventor installs a camera and illumination at the upper part of the doorway that opens and closes the door, reflects the illumination light to the reflection part provided on the door front end surface and the sill surface, and detects that the light is blocked by foreign matter By doing so, a safety device for detecting foreign matter was proposed (Japanese Patent Application No. 2008-284501).

  Further, for example, in Patent Document 1, a light emitting device that emits light in a linear manner is provided in a portion of an entrance / exit frame that opens and closes a door, a camera is provided in a portion of the other opposite frame, and the light of the light emitting device is blocked by foreign matter. There has been proposed a safety device that detects a foreign object by detecting the occurrence of the problem with a camera.

JP 2004-338846 A

  However, in the safety device using the illumination and the camera described above, it is necessary to provide a light reflecting member or a linear light emitting device on the sill surface in order to detect the string-like foreign material on the sill surface. Since the light reflecting member and the light emitting device on the sill surface repeatedly come into contact with the shoe soles of passengers getting on and off the elevator, the surface becomes dirty or damaged over time.

  Moreover, the surface of the light reflecting member and the light emitting device provided on the entrance / exit frame portion and the front end surface of the door may become dirty or damaged over time due to contact of the passenger's hand or luggage. For this reason, it is necessary to periodically replace the light reflecting member and the light emitting device, and there is a problem in that maintenance is troublesome.

  Moreover, in the safety device using the illumination and the camera described above, since the light reflecting member and the linear light emitting device are provided on the door front end surface, the sill surface, or the entrance / exit frame surface, there is a problem that the uniformity of the entrance / exit design is impaired. is there. In an elevator, in order to create a sense of luxury and unity with the interior of a building, the entrance / exit frame, the door, the door front end surface, and the like are often made of the same decorative plate. If this is divided by a light reflecting member or a linear light emitting device, the design is impaired.

  Furthermore, in the safety device using the illumination and the camera described above, the foreign object is detected before the door is closed, and when there is a foreign object, the door is not closed and the apparatus waits until the foreign object is removed. During this time, even if the passenger cannot tell that the door cannot be closed due to foreign objects, an announcement in the car or a warning sound will be given to the passengers. There is a problem that cannot be resolved.

  An object of the present invention is to provide an elevator safety device that can detect small-diameter string-like foreign matters and tape-like foreign matters, requires less labor for maintenance, and does not impair design.

  Another object of the present invention is to provide an elevator safety device that allows a passenger to quickly deal with when a string-like foreign object is detected.

  In one aspect of the present invention, an elevator safety device for detecting foreign matter at an entrance of an elevator is attached to a car side or a landing side below a door sill, emits light across the entrance width of the entrance, and the car side door. A light emitting device that projects upward through a gap between the sill of the doorway and the sill of the landing side door, a camera that is installed at the top of the entrance and that covers the sill surface across the entrance width, and the camera Is extracted from the image captured by the light emitting device, and image processing means is provided for detecting the presence of a foreign substance in response to changes such as segmentation and / or partial omission of the brightened region. It is characterized by that.

  In a preferred embodiment of the present invention, the light emitting device is provided in the lower part of the car side sill, and the light of the light emitting device is reflected by the light reflecting member provided in the lower part of the landing side sill to reach the camera.

  Further, in a preferred embodiment of the present invention, the light emitting devices arranged in a straight line across the entrance width of the entrance and exit are divided into a plurality of parts and are respectively independent, and when a foreign object is detected by the image processing means, The light emitting device includes control means for emitting light only at a portion corresponding to the position where the foreign object is detected.

  In another desirable embodiment of the present invention, a second light emitting device that is arranged in a straight line in the vertical direction between the car side door and the landing side door and emits light toward the door opening end is provided. The camera is characterized in that an image including a door front end surface is captured.

  At this time, in a state where the door is opened, it is arranged so as to be positioned at the lower portion of the sill on the extension line extending downward from the second light emitting device, and emits light toward the lower end of the door front end surface or the vicinity of the end of the sill. It is desirable to include a third light emitting device.

  According to a preferred embodiment of the present invention, light from a light emitting device provided below a door sill is captured by a camera, an area brightened by light from the light emitting device is extracted by an image processing means, and a bright area is divided. And / or foreign matter at the entrance / exit including small-diameter strings and tape-like strings can be detected with changes such as missing parts, etc., so that the light emitting device does not directly touch the soles of passengers and the surface is stained or scratched. Thus, the maintenance work for replacing the light emitting device can be reduced.

  Further, since the light emitting device cannot be directly seen, the design of the entrance / exit is not impaired.

  According to the embodiment of the present invention in which the light emitting device is provided in the lower part of the car side sill and the light of the light emitting device is reflected by the light reflecting member provided in the lower part of the landing side sill, the light reaches the camera. Since it is provided on the side, it is not necessary to provide a light emitting device on the landing side of all floors where the elevator stops, which is economical and can reduce maintenance work.

  Further, according to the embodiment of the present invention including the control unit that emits light only at the portion corresponding to the position where the foreign object is detected when the foreign object is detected by the image processing unit, the place where the foreign object exists is detected by the light of the light emitting device. By indicating with, it is possible to make the passenger aware of the presence of foreign matter and remove the foreign matter, so that the obstacle can be quickly resolved.

  Also, the light emitting device is provided with a second and / or third light emitting device between and / or below the car side door and the landing side door so that the camera captures an image including the front end surface of the door. According to a preferred embodiment of the present invention, by detecting the foreign matter that blocks these lights with a camera, not only the foreign matter on the sill surface but also the foreign matter near the door front end surface can be detected.

  In addition, according to a preferred embodiment of the present invention, since the light emitting device cannot be directly seen by the user, the design of the entrance / exit is not impaired.

The schematic block diagram which shows the safety device of the elevator by Example 1 of this invention. The side view which saw through the positional relationship of the light-emitting device by Example 1 of this invention, and a camera. The front view which saw through the attachment position of the light-emitting device by Example 1 of this invention. The side view which saw through the positional relationship at the time of providing the light-emitting device in the sill lower part of the landing side door by the modification of Example 1 of this invention. FIG. 3 is a top view showing an image captured by the camera according to Embodiment 1 of the present invention. The top view which shows the state which extracted the area | region brightened with the light of the light-emitting device by Example 1 of this invention. The schematic block diagram which shows the safety device of the elevator by Example 2 of this invention. The side view which saw through the positional relationship of the light-emitting device by Example 2 of this invention. The top view which saw through the positional relationship of the light-emitting device provided between the car side door and the landing side door by Example 2 of this invention. FIG. 6 is a top view showing an image captured by a camera according to Embodiment 2 of the present invention. The top view which shows the state which extracted the area | region brightened with the light of the light-emitting device by Example 2 of this invention. The processing flowchart of the control apparatus of the elevator which can apply this invention. The processing flowchart of the door control apparatus by one Example of this invention. The top view which shows the alerting light emission state at the time of the foreign material detection by one Example of this invention. The processing flowchart of the foreign material detection control means by one Example of this invention.

  Hereinafter, an elevator safety device according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram illustrating an elevator safety device according to a first embodiment of the present invention.

  As shown in FIG. 1, a double-opening type elevator door to which the safety device of the present embodiment is applied includes a door 1 disposed at a doorway of a car, a sill 2 guiding a lower portion of the door 1, and a door 1. A door wheel 3 attached to the upper portion and a door rail 4 on which the door wheel 3 travels are provided. Further, the door control device 5 that controls the motor that opens and closes the door 1, the detection of sensor signals of various safety devices related to the door opening and closing, and the state of the elevator hall call button and the destination floor button in the car An elevator control device 6 that controls operation is provided.

  And as a safety device, the light emitting device 8 provided between the sill of the car side door and the sill of the landing side door, the camera 10 provided at the center upper part of the entrance and exit, and an image captured by the camera 10 are foreign matter. An image processing unit 11 that performs detection processing, and a foreign object detection control unit 12 that performs control such as lighting and extinguishing of the light-emitting device 8, capturing of an image, start of image processing, and the like are provided.

  Here, the door control device 5, the elevator control device 6, the image processing means 11, and the foreign object detection control means 12 may be implemented as programs on independent microprocessors or on the same microprocessor. It may be implemented as a program.

  The camera 10 may be installed on either the car side or the landing side. However, if the camera 10 is provided on the car side as in the present embodiment, it is efficient because the entire floor can be covered with one set. .

  Here, the detail of the installation position of the light-emitting device 8 is demonstrated based on FIG. 2, FIG.

  FIG. 2 is a side view illustrating the positional relationship between the light emitting device and the camera according to the first embodiment of the present invention, and FIG. 3 is a front view illustrating the mounting position of the light emitting device according to the first embodiment of the present invention.

  2 and 3, 1 is a car side door, 2 is a car side door threshold, 13 is a landing side door, and 14 is a landing side door threshold. Reference numeral 15 denotes a safety shoe provided on the car side door. The light-emitting devices 8 are arranged across the width of the entrance / exit between the car-side door sill and the landing-side door sill. In the example of FIG. 2, the light-emitting device 8 is attached to the lower part of the car-side door via the attachment member 16. It has been. The camera 10 is installed behind the decorative plate 17 in the car at the top of the door. The light from the light emitting device 8 reaches the camera 10 via the light reflecting member 9 installed on the side of the sill 14 of the landing door or on the surface of the fisher plate 18 installed therebelow. When the apron 19 is provided in the lower part of the sill of the car side door, an opening 20 is provided so that light from the light emitting device can be transmitted.

  The light emitting device 8 is installed in a straight line so as to cover the entire width of the opening of the entrance / exit as shown in FIG. The light emitting device 8 is divided into a plurality of blocks (light emitting device units) as shown in 8a to 8d in the figure, and each can emit light independently.

  The light reflecting member 9 may be a member that totally reflects light such as a mirror surface, or may be a member having a white surface that diffusely reflects light. Alternatively, the light emitting device 8 may be an ultraviolet light emitting device and the light reflecting member 9 may be a member having a fluorescent material, and the light emitting device 8 may be made to emit light by emitting the fluorescent material by ultraviolet irradiation.

  FIG. 4 is a side view transparently showing the positional relationship when the light emitting device is provided in the lower part of the sill of the landing side door according to a modification of the first embodiment of the present invention. In FIG. 4, the same reference numerals as those in FIG.

  In this example, the light emitting device 8 is installed behind the fisher plate 18 so that light can be transmitted through the opening 21 provided in the fisher plate 18. In this case, the light reflecting member 9 in FIG. 2 is not necessary because the light is emitted from the light emitting device 8 so that the light can reach the camera 10 directly. Further, the light emitting device 8 may be provided at the position of the light reflecting member 9 in FIG. 2 as a thin surface light emitting device.

  Next, a foreign object detection method by the image processing means 11 will be described with reference to FIGS.

  The image processing unit 11 detects a foreign object by processing an image captured from the camera 10. FIG. 5 is an example of an image captured by the camera 10. The image shows the passenger 50 in the car, the pet strap (pet lead) 51 held by the passenger, and the gap 52 (the gap between the car and the landing) between the car door threshold and the landing door threshold. ing. A passenger's pet (not shown) is outside the car, and the string 51 is straddling the inside and outside of the doorway.

  If the door 1 is closed in this state and the car starts to move, there is a danger that the passengers and pets may be injured by the string 51 being pulled. Therefore, it is necessary to detect the string 51 straddling the doorway and prohibit the door closing.

  Under normal lighting conditions, as shown in FIG. 5, it is not always possible to ensure a sufficient brightness difference between the string 51 and the background car floor or sill surface, and the string 51 and the background are reliably separated. Is difficult. In addition, if there is strong disturbance light such as sunlight from the outside, it may be erroneously recognized as a foreign object.

  For this reason, in this embodiment, as shown in FIG. 6, a gap portion 62 between the car-side sill and the landing-side sill is illuminated by the light emitting device 8. Thereby, the brightened portion 62 is extracted on the screen, and by detecting that the brightened portion is divided by the foreign matter 61 such as the string, the brightness of the string 61 and the surrounding illumination conditions are not affected. The string 61 is detected.

  Various methods are conceivable as a method for extracting a portion brightened by light from the light emitting device. For example, if the image in FIG. 6 is binarized using a threshold value based on the brightness of the brightened gap portion 62, the gap portion is a bright region 62 and the other portions are dark regions as shown in FIG. 63 is binarized.

  As another method, an image in a state where the light emitting device 8 does not emit light and an image in a state where the light emitting device 8 emits light are captured, and a portion where the difference in brightness between the two images is a predetermined value or more is extracted. Since the brightness of the gap portion 62 brightened by causing the light emitting device 8 to emit light becomes brighter than the state where the light emitting device 8 does not emit light, the area of the brightened gap portion can be extracted.

  When the region of the gap portion 62 extracted in this way is divided by a foreign substance, or when a part is missing, the image processing unit 11 determines that there is a foreign substance such as a string. Taking the resolution of the camera into consideration, foreign matter detection by such a method can detect even small-diameter string-like foreign matters or tape-like cord-like foreign matters. Further, not only the string-like foreign matter but also a passenger or a passenger's baggage can be detected as a foreign matter when the gap portion 62 is blocked.

  The above Example 1 is summarized as follows.

  First, it is premised on an elevator safety device that detects foreign matter at an elevator doorway in which an upper part is guided by a door rail 4 and a lower part is guided by a sill 2 and the car-side door 1 and the landing-side door 13 are opened and closed.

  Here, it is attached to the car side or the landing side below the door sill, emits light over the entrance width, and passes through the gap between the sill 2 of the car side door 1 and the sill 14 of the landing side door 13. A light emitting device 8 that projects upward is disposed. In addition, the camera 10 installed at the upper part of the entrance and exiting the entrance and exit, and the region 62 brightened by the light emitting device is extracted from the image captured by the camera, and the sill surface is viewed. The image processing means 11 is provided for detecting the presence of the foreign matter 61 in response to the division of the brightened region (FIG. 6) and / or partial omission.

  FIG. 7 is a schematic configuration diagram showing an elevator safety device according to Embodiment 2 of the present invention.

  As shown in FIG. 7, the double-open elevator door to which the safety device of the present embodiment is applied has the same structure and control device as those in FIG. Here, the difference from FIG. 1 is that as a safety device, in addition to the light emitting device 8 provided between the sill of the car side door and the sill of the landing side door, it is provided between the car side door and the landing side door. The second light emitting device 7a and a third light emitting device 7b provided on the car side below the car door when fully opened are provided in order to emit light without gaps between the car side and the landing side. As shown in FIG. 7, the light emitting device 7 b is disposed so as to be located at the lower part of the sill on the extension line of the light emitting device 7 a when the door is open. The light emitting devices 7a, 7b, and 8 cause the car-side and landing-side gaps to emit light without interruption.

  FIG. 8 is a side view of the positional relationship of the light emitting devices 7a and 7b according to the second embodiment of the present invention, seen from the landing side with the landing side door 13 removed, and FIG. 9 shows the car side door and the landing side door. It is an image figure which shows a mode that the positional relationship of the light-emitting device 7a provided in the middle was seen from the door upper part.

  The details of the light emitting device 7a provided between the car side door and the landing side door and the light emitting device 7b provided below the car door will be described with reference to these drawings.

  The light-emitting device 7a is installed between the car-side door 1 and the landing-side door 13, and in this example, the light-emitting device 7a is attached at a position that does not interfere with the safety shoe 15 on the back side of the car-side door 1 and its support mechanism. The light from the light emitting device 7a reaches the camera 10 (not shown) through the light reflecting member 22 installed on the back side of the hall door 13. The light emitting devices 7a are arranged in a straight line in parallel to the front end surface of the door, that is, perpendicularly to the height from the floor surface to the range where the camera 10 can be viewed.

  As a modification, when the light emitting device 7a is installed on the back surface of the landing side door 13, it is installed at the position of the illustrated light reflecting member 22, and the light reflecting member becomes unnecessary. As a configuration example of the light reflecting member 22, as in the case of the light reflecting member 9 (FIG. 2), one having a specular reflection surface, one having a white surface, one having a phosphor, and the like are conceivable.

  In addition, the light emitting device 7b is provided so that the gap between the car side and the landing side of the door and the sill emits light without breaks. The light emitting device 7b is provided at the lower position of the sill on the extended line of the second light emitting devices 7a arranged in a straight line when the door is open. The direction of the light of the light emitting device 7b is such that it reaches the camera 10 via the light reflecting member 22 provided on the back of the landing side door so that the light between the light emitting devices 7a and 8 is not interrupted. It has been adjusted. The light emitting devices 7a, 7b, and 8 emit light without interruption of the gap between the car side and the landing side.

  In the above description, the case where the light emitting devices 7a, 7b and 8 are attached to the car side and the case where the light emitting devices 7a, 7b and 8 are attached to the landing side has been described. , Installation work and maintenance takes time. Therefore, it is desirable that the light emitting devices 7a, 7b and 8 are attached to the car side.

  10 and 11 are examples of images for showing the foreign object detection operation according to the second embodiment corresponding to FIGS. 5 and 6, respectively.

  In Example 1, light was emitted only on the threshold among the entrances and exits between the platform and the car. For this reason, when a pet lead exists outside the light emitting unit 62 in FIG. 6 when viewed from the camera, it is highly likely that it is difficult to detect the presence of the pet lead.

  On the other hand, according to the second embodiment, the light emitting devices 7a, 7b, and 8 continuously emit light not only to the clearance of the door sill but also to the clearance of the front end surface of the door as shown in FIG. Let Therefore, not only the gap between the sills, but also the pet lead 61 in a state of floating along the front end surface of the door as shown in FIG. The part 61 can be deleted, and the string 61 can be detected regardless of the brightness of the string 61 and the surrounding illumination conditions by detecting this division and / or partial loss.

  By detecting the foreign matter by such a method, it is possible to detect a string-like foreign matter or tape-like foreign matter wherever a small-diameter cord-like foreign matter is in contact with the front end surface of the door.

  Next, the movement of the entire apparatus according to the embodiment of the present invention including the operation of the elevator will be described with reference to FIGS. 12, 13 and 15.

  As shown in FIG. 12, when the elevator car arrives at the destination floor, the elevator control device 6 issues a command to open the door 1 to the door control device 5 (S1, S2). When a predetermined time elapses or the door close button in the car is pressed, a command to close the door is issued to the door control device 5 (S3, S4). And if it confirms that the door 1 closed normally, a movement will be started to the next destination floor (S5, S6).

  As shown in FIG. 13, for example, when the door control device 5 receives a command to close the door 1 from the elevator control device 6, the door control device 5 issues a foreign matter detection start command to the foreign matter detection control means 12 (S10, S11). If the result of foreign object detection is “existing foreign object”, a message or warning sound that prompts the passenger to remove the foreign object is broadcast (S12, S13). At the same time, the light emitting device corresponding to the position where the foreign object is detected is caused to emit light (S14). Then, the foreign object detection process is repeated until “no foreign object” is reached, and during that time, the message, warning sound, or flashing of the light emitting device is continued. When “no foreign matter” is reached, the door 1 starts to close (S12, S15).

  FIG. 14 is a top view showing a warning light emission state at the time of foreign object detection according to an embodiment of the present invention, and shows an example of a state in which the light emitting device 8c only in the vicinity 45 of the foreign object detection unit emits light after the foreign object detection. ing. In this example, since the foreign matter is included in the light emission range 45 of the light emitting device 8c, only the light emitting device 8c is lit. At this time, the light emitting device may be continuously turned on or blinked. Thus, by indicating the presence of a foreign object with light to the passenger, it is possible to make the passenger aware of the presence of the foreign object more reliably than simply broadcasting a message or warning sound, and it is possible to quickly remove the foreign object. . In addition, the presence of foreign objects can be surely recognized even for passengers who are impaired in hearing, and this can be a kind safety device for passengers.

  In the processing flow of FIG. 13, the foreign object detection is performed not only before closing the door 1 but also from the start of closing the door 1 to immediately before the door 1 is fully closed, and the door 1 is opened when the foreign object is detected. It is also good. Thereby, before a passenger collides with the door 1, the door 1 can be reversed and the door 1 can be controlled more safely than a safety shoe.

  As shown in FIG. 15, when the foreign object detection control means 12 receives a foreign object detection start command from the door control device 5 (S20), the light emitting devices 7a, 7b and 8 are turned on (S21). (S22), and the light emitting devices 7a, 7b, and 8 are turned off (S23). When extracting a bright area from the difference between the image when the light emitting device is not turned on and the image when the light emitting device is turned on, the image is captured before the light emitting device is turned on in S21. Then, the image processing unit 11 performs the image processing described with reference to FIGS. 5 and 6 and FIGS. 10 and 11 on the captured image, thereby determining the presence or absence of a foreign object (S24). It sends to the door control device 5 (S25). The light emitting devices 7a, 7b, and 8 may be constantly lit, but power can be saved by lighting only when capturing an image. Further, by illuminating the issuing devices 7a, 7b, and 8 instantaneously only when an image is captured, the influence on the design of the elevator can be minimized and the aesthetic appearance can be maintained.

  According to this embodiment, by providing the light emitting device below the door sill or inside the door front end surface, the light emitting device does not directly touch the passenger's shoe sole, luggage, or hand, and the surface. The occurrence of dirt and scratches can be reduced, and the detection sensitivity can be maintained over a long period of time. For this reason, it is possible to reduce the trouble of maintenance for replacing the light emitting device.

  Further, when the light emitting device is not directly visible from the outside, the design of the entrance / exit is not impaired.

  Further, when the place where the foreign matter exists is indicated by the light of the light emitting device, the presence of the foreign matter can be noticed by the passenger and the foreign matter can be removed, so that the obstacle can be quickly resolved.

  In the above-described embodiment, the double door type elevator in which the two doors 1 open to the left and right from the center of the entrance / exit is described as an example. However, the present invention can also be applied to a single door type elevator in which the door opens from one side. Needless to say. In this case, on the side without the door, a light emitting device may be provided between the car side portion and the landing side portion of the door frame portion with which the door front end surface abuts.

  In addition, the image processing means and the foreign object detection control means can be configured as a program on a microprocessor different from the door control device and the elevator control device, and can be configured as a device that integrates the illumination and the camera. In this case, the present invention can be easily applied to an existing elevator. In that case, what is necessary is just to add the processing function shown to step S11, S12, S13, and S14 of FIG. 13 to the door control apparatus of the existing elevator.

  In addition, the camera 10 is set to have a relatively wide field of view so that the camera 10 can also see the inside of the car, so that the camera 10 can be used not only as a foreign object detection but also as a surveillance camera in the car. Can also be used.

  When the inspection operation is performed at night or early morning when there is no elevator user, foreign matter detection is performed with the door open, and if a foreign matter is detected at the same position every time, Dirt or camera failure or dirt is expected. In this case, the door safety device can be quickly dealt with by notifying the maintenance company that there is a failure.

  DESCRIPTION OF SYMBOLS 1 ... Car side door, 2 ... Sill, 5 ... Door control apparatus, 6 ... Elevator control apparatus, 7a, 7b, 8 (8a-8d) ... Light-emitting device, 9 ... Light reflection member, 10 ... Camera, 11 ... Image processing Means, 12 ... Foreign matter detection control means, 13 ... Landing side door, 45 ... Warning light emitting part, 50 ... Passenger, 51, 61 ... String, 62, 64 ... Area brightened by the light emitting device.

Claims (4)

In the elevator safety device that detects foreign matter at the entrance of the elevator where the upper part is guided by the door rail and the lower part is guided by the sill, and the car side door and the landing side door are opened and closed,
A light emitting device that is attached to the car side or the landing side below the door sill, emits light over the entrance width, and projects upward through a gap between the car door sill and the door sill. ,
The area brightened by the light-emitting device was extracted from the camera installed in the upper part of the entrance and exited from the camera with the sill face across the width of the entrance and the image captured by the camera. Comprising image processing means for detecting the presence of foreign matter in response to a change in the area;
The light emitting device includes a plurality of light emitting unit units arranged in a straight line across the width of the entrance and exit, and when a foreign object is detected, a part of the light emitting unit disposed near the position where the foreign object is detected An elevator safety device comprising control means for causing only the light emitting section to emit light .   A second light-emitting device that is arranged in a straight line between the car-side door and the landing-side door and that emits light toward the front end surface of the door is provided, and the camera has the front end surface in the field of view. The elevator safety device according to claim 1, wherein the safety device is arranged. In a state where the door is opened, the third light emission is arranged so as to be positioned at the lower portion of the sill on the extension line extending downward from the second light emitting device and emits light toward the lower end of the door front end surface or the vicinity of the end of the sill. The elevator safety device according to claim 2 , further comprising a device. In the elevator safety control method that detects the foreign matter at the elevator doorway where the upper part is guided by the door rail and the lower part is guided by the sill, the car side door and the landing side door are interlocked and opened and closed,
From the light emitting device attached to the car side or the landing side below the door sill and including a plurality of light emitting unit units arranged in a straight line , the sill of the car side door extends across the entrance width of the entrance and exit. Flooding upward through the gap between the sills of the landing side doors,
Capturing image information from a camera that is installed at the top of the entrance and that has the sill surface in the field of view across the entrance width ;
Extracting a region brightened by the light-emitting device based on the image information, detecting the presence of a foreign object in response to segmentation of the brightened area and / or partial omission , and when a foreign object is detected , safety control method features and to Rue elevators that foreign matter having a step of emitting only the light emitting portion of the part which is arranged in the vicinity of the detected positions.

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