JP2007031105A - Passenger abnormality sensing device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a passenger abnormality sensing device for an elevator capable of preventing passenger(s) from being confined by sensing the height of passengers. <P>SOLUTION: The passenger abnormality sensing device of the elevator is equipped with a stereo image processing means 8 to make a stereo image processing on the basis of image data given by two cameras 7 and 7A to photograph inside an elevator car, a moving body sensing means 9 to sense a moving body in the car using the image data prepared by the stereo image processing means 8, a height measuring means 10 to measure the height of the moving body in the car using the image data prepared by the stereo image processing means 8, a moving body height sensing means 11 to sense the height of the moving body top in the car on the basis of the sensing results of the moving body sensing means 9 and the height measuring means, a height comparing means 12 to compare the sensing results of the moving body height sensing means with the prescribed height stored previously, and a failure sensing means 13 to work when the height comparing means 12 senses the condition that inside the car is only with moving bodies not filling the prescribed height, transmit a command to order that the car should not travel to other floors and that the door opened condition should be continued. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a passenger abnormality detection device for an elevator which detects the passenger height and prevents the car from being trapped.

  In general, an elevator is provided with an operation panel provided with a destination floor button for registering a destination floor and a door opening button for opening a car door provided at the entrance of the car. If you want to move the car, press the destination floor button by the elevator passenger, and if you want to open the car door at the entrance of the car and get off the car, press the door open button It is.

  However, after the passenger gets in the car, the destination floor button cannot be pressed, or the passenger who gets in the car does not know the operation of the destination floor button. If it is not pushed, the car door provided at the entrance of the car is automatically closed after a predetermined time has elapsed. As a result, the car remains in a non-directional state in which the destination floor is not designated and remains on the floor where the passenger has entered the car, that is, the car is confined. Such a locked-up state of the car is when the passenger falls into the car because of illness or the like, when only an infant who cannot reach the control panel gets into the car, or is placed on the control panel. This is likely to occur when animal pets such as dogs that cannot be operated such as the destination floor button are entering the car.

Therefore, as an elevator that eliminates the above-mentioned car confinement state, a means that is installed in the car and shoots the video in the car, and a means that receives the video and processes the image to recognize the presence or absence of a passenger Means for detecting whether the destination floor button has been pressed, means for measuring the elapsed time from when the car door provided at the entrance of the car is closed until the destination floor button is pressed, Comparing means for comparing the stored predetermined time, and means for recognizing that the passenger is in the car after a predetermined time by comparison by the comparing means, and the predetermined time has passed in the car However, when there is a passenger, there has been proposed one in which the car is moved to the reference floor and the car door provided at the entrance of the car is automatically opened (see, for example, Patent Document 1).
JP 2003-104635 A (paragraph numbers 0010 to 0011 and paragraph numbers 0034 to 0035, FIG. 2 and FIG. 6)

However, in the elevator described in Japanese Patent Application Laid-Open No. 2003-104635 and the like, when a passenger enters the car, the car door provided at the entrance of the car is closed and the destination door button is closed after the car door is closed. When the car is not pushed for more than a specified time, the car is locked up for the first time by moving the car to the standard floor and opening the car door on the standard floor. .

  Therefore, (1) For example, when an infant whose hand cannot reach the operation panel in the car gets into the car alone while the parent keeps an eye on the car, when a predetermined time elapses, Because the car door automatically closes and the car moves to the reference floor, there is a risk that the infant will be separated from the parent and will be in a distant place. (2) I got in the car alone. If a passenger falls down due to illness and is unable to operate the control panel in the car, the car door automatically closes and the car moves to the reference floor after a predetermined time. Until the car door opens on the standard floor, passengers who have fallen in the car will not be noticeable, so there has been a problem that the treatment of passengers will be delayed and the disease will be worsened.

  The present invention has been made in the state of the prior art described above. The purpose of the present invention is to keep the car locked even if a passenger who cannot operate the destination floor button is in the car. An object of the present invention is to provide an elevator passenger abnormality detection device capable of preventing the occurrence.

  In order to achieve the above object, the present invention performs stereo image processing by synchronizing two cameras capable of photographing the inside of the elevator car from the ceiling of the elevator car and image data output from these two cameras. Stereo image processing means, moving object detection means for detecting the presence of a moving object in the car by the image data created by the stereo image processing means, and in the car by the image data created by the stereo image processing means Height measurement means for measuring the height of the moving body of the vehicle, and moving body height detection for detecting the top height of the moving body in the car by combining the detection result of the moving body detection means and the measurement result of the height measurement means The height comparison means for comparing the detection result of the moving body height detection means with a predetermined height, and the result of comparison by the height comparison means. An abnormality detecting means for judging that there is an abnormality in the passenger of the car when detecting a state in which only a moving body less than the predetermined height is present in the passenger is detected by the abnormality detecting means. Sometimes, the abnormality detection means transmits a command to continue the door open state without causing the car to travel to another floor to the elevator control means.

  Further, the present invention is characterized in that the predetermined height is stored in the height comparing means, and the predetermined height can be changed.

  According to the present invention, when the height of a passenger who has entered the car is a predetermined height at which the passenger cannot operate the destination floor button, the car door is opened on the floor on which the passenger has entered. In this state, the car is not kept in a waiting state and the car is not locked up, so that a person who passes through the floor on which the passenger boarded notices an infant or sick person in the car and takes appropriate measures. Therefore, an elevator passenger abnormality detection device that enables safer elevator operation is obtained.

  Hereinafter, an elevator passenger abnormality detection device according to an embodiment of the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 1, an elevator 1 according to an embodiment of the present invention includes a car 2 that lifts and lowers passengers, and an elevator controller 4 that controls the operation of the car 2 and the opening and closing of the car door 3. An operation panel 5 provided in the car 2 and provided with a destination registration button 5A for a passenger to register a destination floor, and an open button 5B and a close button 5C for urging the car door 3 to open and close as necessary, The passenger abnormality detection device 6 that detects an abnormality of a passenger on the passenger car 2 is provided at least.

  As shown in FIG. 1, the passenger abnormality detection device 6 is output from two cameras 7 and 7A capable of photographing the inside of the car 2 from the ceiling of the car 2 of the elevator 1, and the two cameras 7 and 7A. Stereo image processing means 8 for performing stereo image processing by synchronizing image data to be detected, and moving object detection for detecting the presence of a moving object H such as a passenger in the car 2 by the image data generated by the stereo image processing means 8 A height measuring means 10 for measuring the height of the moving object H in the car 2 from the image data generated by the means 9 and the stereo image processing means 8; a detection result of the moving object detecting means 9; The moving body height detection means 11 for detecting the top height of the moving body H in the car 2 in combination with the measurement result, and the detection result of the moving body height detection means 11 and a predetermined predetermined height are compared. Passengers of the car 2 when it is detected that there is only a moving body H less than the predetermined height in the car 2 as a result of comparison by the height comparing means 12 and the height comparing means 12 An abnormality detection means 13 for determining an abnormality is provided at least. Here, the moving body H is a passenger who gets into the car, and includes not only adults but also children such as infants and animal pets such as dogs.

  The two cameras 7 and 7A always take an image of the inside of the car 2 and transmit the image data to the stereo image processing means 8. The stereo image processing means 8 captures two image data from the cameras 7 and 7A at the same time, and stores the two image data in a built-in memory in a synchronized state. The moving object detecting means 9 compares the two image data stored in the stereo image processing means 8 with the image data captured one cycle before, and the moving object H in the car 2 is determined as one lump from the amount of change. The detected position is stored in a built-in memory as detection result data.

  The height measuring means 10 measures the distance from the cameras 7 and 7A at each point in the image, that is, the height of the moving object H, based on the two image data stored in the stereo image processing means 8, and uses it. Measurement result data is stored in a built-in memory. The distance D from the focal point of the cameras 7 and 7A to the actual target point P as shown in FIG. 2 can be calculated by (B × f) / Z. Here, B is the distance between the camera 7 and the camera 7A, f is the focal length of the camera 7 and the camera 7A, and Z is the target point P projected on the images obtained from the cameras 7 and 7A. The amount of deviation is shown respectively. Therefore, by calculating the distance D for all moving objects existing in the car 2 from the two image data stored in the stereo image processing means 8 by the height measuring means 10, the heights of all moving objects H are calculated. Can be measured.

  The moving body height detection unit 11 combines the detection result data (moving body position data) stored in the moving body detection unit 9 and the measurement result data (height data of the moving body H) stored in the height measurement unit 10. Thus, height information is added to each point of the moving object H (lumps) on the image, and image data in a state where the highest point in the moving object H (lumps) is extracted as the top height is created, The height of the top of the moving body H in the car 2 is detected from the image data. FIG. 3 shows a real image G1 obtained by image data based on the images taken by the cameras 7 and 7A, for example, in a state where one infant stands in the car 2. 4 recognizes one infant standing in the car 2 of FIG. 3 as a moving body H, and displays that the height of the top is 600 mm in the recognized portion. An image G2 is shown. Here, the top height refers to the height of the highest part of the moving body H. For example, when the infant who is the moving body H extends its hand up, it refers to the height of the tip of the hand.

  The height comparison unit 12 stores a predetermined height that is stored in a built-in memory, compares the predetermined height with the top height detected by the moving body height detection unit 11, and compares the comparison result. The data is transmitted to the abnormality detection means 13. The predetermined height stored in the height comparison means 12 can be changed by sending a command from a monitoring center (not shown) to the passenger abnormality detection device 6 via the communication means. When there are a plurality of moving bodies H, the height comparison means 12 compares a predetermined height with the top height for each of the plurality of moving bodies H, and transmits the comparison results to the abnormality detection means 13. Here, the predetermined height refers to a reference height for determining that a passenger who has entered the car cannot operate the destination registration button 5A.

  If the comparison result from the height comparison means 12 indicates that the top heights of all moving bodies H (lumps) do not satisfy the predetermined height, the abnormality detection means 13 Only the moving body H less than the predetermined height exists in the car 2, and it is determined that “the passenger is abnormal in the car 2”, and the elevator controller 4 causes the car to travel to another floor. The continuation command for continuing the door open state is transmitted without the transmission.

  When the elevator control means 4 receives the continuation command from the abnormality detection means 13, even after the car door 3 provided at the entrance / exit of the car 2 is in the process of closing, the elevator door 3 is once closed. Even so, the car door 3 is controlled to be in an open state so that the car does not travel to another floor. The elevator control means 4 sends a continuation command from the abnormality detection means 13 to the elevator control means 4 when the “passenger abnormality in the car 2” is canceled by lowering the sick or infant from within the car 2. The car door 3 is closed and controlled to return to normal operation.

  In the elevator 1 configured as described above, when a passenger presses a hall-side call button (not shown) and calls the car 2, the car 2 arrives on the floor where the pressed hall-side call button is located, and then the car 2 Since the car door 3 provided at the doorway opens, the passenger can get into the car 2. At this time, if the height of the passenger who has entered the car 2 satisfies a predetermined height, the passenger abnormality detection device 6 does not cause the elevator 2 to travel to the other floor without moving the car 2 to another floor. A continuation command to continue the open state is not sent.

  Thereafter, the passenger who has entered the car 2 registers the destination floor by pressing the destination registration button 5A of the floor that he / she wants to go to. When the destination floor is registered, if the other destination registration button 5A or the like is not pushed by the passenger, the car door 3 is automatically closed after a predetermined time, and the car 2 runs on the registered destination floor. When the car 2 arrives at the destination floor by the traveling, the car door 3 is automatically opened to keep the open state for a predetermined time, and the passengers from the car 2 during the open state The car 2 and the car door 3 are controlled by the elevator control means 4 so that they can get off. In addition, when a passenger gets off from the car 2 and a predetermined time elapses, the car door 3 is automatically closed, and after that, no other destination floor is registered and a call on the landing side of another floor (not shown) is made. If the button is not pressed, the elevator car 4 and the car door 3 are controlled by the elevator control means 4 so that the car 2 stays on the floor where the passenger has descended.

  Next, when all the heights of the passengers who entered the car 2 do not satisfy the predetermined height, the passenger abnormality detecting device 6 does not cause the elevator control means 4 to travel the car 2 to another floor. Since the continuation command for continuing the door open state is transmitted to the car 2, the car 2 stays in the door open state on the floor where the passenger has entered the car 2.

  Therefore, when an animal pet such as a tall infant or dog that cannot press the destination registration button 5A has entered the car or a passenger who has entered the car 2 falls into the car 2 due to illness. When the passenger's height is lowered, the car door 3 is not closed and the car 2 does not travel to the other floor, and the car is entered on the floor where the car 2 is entered. Because 2 stays in the door open state, the infant or animal pet or the sick person who is falling is in the car 2, and the infant or animal pet or the sick person who is falling is in the floor Because it is immediately confirmed by other passengers and passers-by (including guardians of infants and animal pets), appropriate care can be taken promptly for sick people, and guardians Infants and animals Notice to the class, to parents is not to be confused, and have never infants and animal pets, resulting in stray from the parents to move to another floor. Further, the passenger abnormality detection device 6 having the above configuration changes the predetermined height stored in the height comparison means 12 to an optimal predetermined height in response to the change in the layout of the operation panel 5 in the car 2. It is easy to use because it can.

It is a block diagram of the passenger abnormality detection apparatus of the elevator which concerns on one Embodiment of this invention. It is principle explanatory drawing of the height measurement means of the passenger abnormality detection apparatus of the elevator which concerns on one Embodiment of this invention. It is a figure which shows the real image of the state where one infant stands in the passenger car obtained by the passenger abnormality detection apparatus of the elevator which concerns on one Embodiment of this invention. It is a figure which shows the moving body height detection image formed by recognizing the real image of FIG. 3 as a moving body, and displaying the top height in the recognized part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator 2 Car 3 Car door 4 Elevator control means 5 Operation panel 5A Destination registration button 5B Open button 5C Close button 6 Passenger abnormality detection device 7, 7A Camera 8 Stereo image processing means 9 Moving object detection means 10 Height measurement means 11 Moving object Height detection means 12 Height comparison means 13 Abnormality detection means

Claims (2)

  Two cameras capable of photographing the inside of the elevator car from the ceiling of the elevator car, stereo image processing means for synchronizing stereo image data output from these two cameras, and this stereo image processing means A moving object detecting means for detecting the presence of a moving object in the car based on the created image data, and a height measuring means for measuring the height of the moving object in the car using the image data created by the stereo image processing means. And a detection result of the moving object height detection means, and a detection result of the moving object height detection means, which detects the top height of the moving object in the car by combining the detection result of the moving object detection means and the measurement result of the height measurement means. And a height comparison means for comparing the predetermined height with a predetermined height, and as a result of comparison by the height comparison means, the moving body is less than the predetermined height in the car. And an abnormality detecting means for judging that the passenger of the passenger car is abnormal when detecting the presence of the vehicle, and when the abnormality detecting means determines that the passenger is abnormal, the abnormality detecting means sends the abnormality to the elevator control means. On the other hand, an elevator passenger abnormality detection device characterized by transmitting a command to continue the door open state without causing the car to travel to another floor. The elevator passenger abnormality detecting device according to claim 1, wherein the height comparing means stores a predetermined height, and the predetermined height can be changed.

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