KR20160025224A - Device And System For Elevator Abnormal Operation Detection - Google Patents

Device And System For Elevator Abnormal Operation Detection Download PDF

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Publication number
KR20160025224A
KR20160025224A KR1020140112159A KR20140112159A KR20160025224A KR 20160025224 A KR20160025224 A KR 20160025224A KR 1020140112159 A KR1020140112159 A KR 1020140112159A KR 20140112159 A KR20140112159 A KR 20140112159A KR 20160025224 A KR20160025224 A KR 20160025224A
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South Korea
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elevator
acceleration
unit
abnormal operation
control unit
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KR1020140112159A
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Korean (ko)
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신현대
전창현
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신현대
전창현
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Priority to KR1020140112159A priority Critical patent/KR20160025224A/en
Publication of KR20160025224A publication Critical patent/KR20160025224A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions

Abstract

Disclosed is a device for detecting an abnormal operation of an elevator, which includes a memory unit and an elevator abnormal operation determination control unit. In the device for detecting the abnormal operation of the elevator according to the present invention, the elevator abnormal operation determination control unit computes an elevator reference acceleration profile depending on the time related to an elevator operation from a departure floor to a destination floor, receives elevator acceleration in real time from an acceleration sensor, and determines that an event occurs if the elevator acceleration is beyond a predetermined range with respect to the elevator reference acceleration profile. The elevator abnormal operation determination control unit receives a real-time video photographed by a camera which is installed in the ceiling of the elevator to photograph a video of an elevator car, and compares the photographed video with a situational reference video stored in the memory unit so as to determine a behavior pattern of an elevator passenger. If it is determined that the event occurs and the behavior pattern of the elevator passenger is a behavior pattern of giving a shock to the elevator, the elevator abnormal operation determination control unit determines that the elevator is in a normal operation. The device for detecting the abnormal operation of the elevator according to the present invention can detect the elevator abnormal operation more accurately, and can perform more sophisticated determination by an accumulation of experience.

Description

Technical Field [0001] The present invention relates to a device and a system for detecting abnormal driving of an elevator,

The present invention relates to an elevator abnormality detecting apparatus and system, and more particularly, to an elevator abnormality detecting apparatus and system capable of more accurately detecting an elevator abnormality and capable of performing more sophisticated judgment by accumulation of experience .

An elevator is installed for quick and easy movement between layers of a high-rise building. Various safeguards are provided to safely operate these elevators, and periodic safety checks are carried out. Nevertheless, large and small safety accidents have occurred and are making the elevator users uneasy.

Patent Registration No. 10-1264520 (registered on Mar. 05, 2008) discloses an elevator management apparatus and method. In this patent, the degree of shaking of the elevator car from the vibration is calculated to judge whether or not the elevator operates normally. This patent also describes a method of calculating the acceleration of an elevator car, calculating the speed of the elevator car from the acceleration, detecting whether the elevator is operating normally or not, And determines whether or not an abnormality has occurred in the braking device by calculating the braking force of the braking device according to the deceleration.

According to the above-described conventional technique, it is possible to grasp whether the elevator is in normal operation, and thus the elevator can be safely managed. However, since the shaking of the elevator exceeding the predetermined value can not all be attributed to the abnormal operation of the elevator, there is a problem that the accuracy of the judgment by the conventional technique is low.

SUMMARY OF THE INVENTION It is, therefore, an object of the present invention to provide an elevator abnormality detecting apparatus and system capable of detecting elevator abnormal operation more accurately and performing more sophisticated judgment by accumulation of experience.

According to another aspect of the present invention, there is provided an abnormality detection apparatus for an elevator according to the present invention includes a memory unit and an elevator abnormality determination control unit.

The elevator abnormality operation determination control unit receives the information on the elevator operation from the elevator operation control unit and calculates an elevator reference acceleration profile according to the time from the starting floor to the target floor for the elevator operation and also detects the elevator acceleration from the acceleration sensor in real time An elevator acceleration determining unit for determining that an event has occurred when the elevator acceleration exceeds a predetermined range with respect to the elevator-specific acceleration profile; An elevator passenger behavior control unit installed on a ceiling of the elevator and receiving an image photographed from a camera for photographing an image of an elevator car and comparing the photographed image with a reference image of a situation stored in the memory unit to determine a behavior pattern of an elevator passenger A pattern determination unit; If the elevator acceleration determination unit determines that the elevator acceleration exceeds the predetermined range with respect to the elevator-specific acceleration profile, that is, when it is determined that the event occurs, the elevator-occupant behavior pattern judged by the elevator- An elevator abnormality driving judging unit for judging that the elevator is normally operated in the case of a behavior pattern; And a control unit that stores the elevation acceleration received in real time from the acceleration sensor and the photographed image received in real time from the camera into the memory unit as a data set according to time, and when the elevator acceleration determination unit determines that an event has occurred, The elevator acceleration and the data set relating to the photographed image are compared with a time interval that is a predetermined time interval before and after the time when the acceleration deviates from the elevation reference acceleration profile (hereinafter, referred to as " event generation time & And a data storage processor for storing the data in the memory.

When the elevator abnormal operation determination unit determines that the elevator has abnormally operated, the elevator abnormal operation determination control unit reports the abnormal operation of the elevator to the display device or reports the elevator abnormal operation reporting unit to the outside by wire or wireless communication .

Wherein the elevator abnormal operation determination unit counts the number of times that the abnormal operation of the elevator has occurred and stores the counted number in the memory unit and the elevator abnormal operation reporting unit issues an alarm when the number of abnormal operation occurrences of the elevator reaches a predetermined reference number desirable.

It is preferable that the elevator abnormal operation reporting unit notify that an abnormal operation of the elevator has not occurred but also the occurrence of the event.

Wherein the memory unit stores an elevator-specific acceleration profile for combinations of selected arbitrary starting layers and object layers in all layers of the elevator, and the elevator-acceleration determining unit determines the elevation- And may be to calculate the elevator reference acceleration profile by selecting an elevator reference acceleration profile consistent with information about elevator operation.

The behavior pattern determination unit of the elevator passenger behavior pattern divides the image captured by the camera into equally spaced cells to form a virtual matrix, calculates optical flows in the matrix cells, The motion descriptor is classified and cumulatively classified according to the position and the direction, and the motion descriptor is compared with the representative motion descriptors stored in advance in the memory unit to select the most similar representative motion descriptor, The controller may determine that the selected representative motion descriptor is an action pattern that gives an impact to the elevator of the elevator passenger, and may determine that the elevator is normally operating.

The elevator abnormality determination control unit further includes an elevator speed determination unit. The elevator speed determination unit receives information on the elevator operation from the elevator operation control unit and notifies the elevator operation information Wherein the controller determines whether the elevator speed is out of a predetermined range with respect to the elevator reference speed profile by calculating a speed profile and calculating an elevator speed in real time and the elevator abnormality operation determination portion determines that the elevator speed is lower than the elevator reference speed profile It is preferable that the elevator judges that the elevator is operating abnormally.

The elevator door opening / closing determination unit may further include an elevator door opening / closing determination unit operable to determine an opening / closing state of the elevator door recognized from the image photographed by the camera, and an elevator door opening / When the elevator door opening / closing determination unit determines that the opening / closing state of the elevator door and the opening / closing request of the elevator door do not coincide with each other, the elevator abnormal operation determination unit determines whether the elevator door open / It is preferable to determine that the vehicle is operating abnormally.

The present invention also provides an elevator unsteady running detection system. The elevator abnormal driving detection system according to the present invention includes an elevator operation control unit, an acceleration sensor, a camera, and the above-mentioned elevator abnormal driving detection device.

According to the elevator abnormality detecting apparatus and system of the present invention, it is possible to more accurately detect an abnormal operation of an elevator and to make more sophisticated judgment by accumulating experience.

Brief Description of the Drawings Fig. 1 is a schematic diagram of an elevator abnormal driving detection system according to the present invention.
FIG. 2 is a schematic diagram of an elevator abnormal driving detection system according to the present invention.
FIG. 3 is a diagram illustrating a specific configuration of an elevator abnormal driving determination control unit that constitutes the elevator abnormal driving detection apparatus of the present invention.
4 is a diagram showing an example of an elevator reference acceleration profile and an elevator reference velocity profile.
5 is a diagram showing an example of an actual elevator acceleration profile and an elevator speed profile.
6 is a view for explaining the normal operation and the abnormal operation of the elevator.
FIG. 7 and FIG. 8 are flowcharts of a procedure for determining an abnormal operation of an elevator by an elevator acceleration in the present invention.
9 is a flowchart illustrating a procedure for determining abnormal operation of an elevator by an elevator speed in the present invention.
10 is a flowchart illustrating a procedure for determining an abnormal operation of an elevator by opening and closing an elevator door in the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1, the elevator abnormal driving detection system 10 of the present invention includes an elevator operation control unit 100, an acceleration sensor 200, a camera 300, a user input unit 400, an elevator abnormal operation determination control unit 500, a memory unit 600, a communication unit 700, and a screen display unit 800. The elevator abnormal driving detection apparatus according to the present invention can include the elevator abnormal driving determination control unit 500 and the memory unit 600 and can also include the user input unit 400, the communication unit 700, and the screen display unit 800 And the like.

FIG. 2 is a schematic view of an elevator abnormal driving detection system of the present invention. The elevator abnormal driving detection apparatus of the present invention is typically installed in an elevator, and the camera 300 is installed on a ceiling of an elevator. In FIG. 2, the acceleration sensor 200 is not shown. The acceleration sensor 200 may be integrally formed in the elevator abnormal driving detection device of the present invention, or may be installed separately in an appropriate place in the elevator. It is a matter of course that the acceleration sensor 200 and the camera 300 should be electrically connected to the elevator abnormal driving determination control unit 500.

The elevator operation control unit 100 is installed in the elevator control panel. The elevator control panel is typically installed on the roof of the building and connected to the elevator via a traveling line. The travel line not only provides a connection for up and down movement of the elevator, but also provides an electrical connection between the elevator control panel and the elevator.

The acceleration sensor 200 measures the instantaneous acceleration of the elevator and transmits the instantaneous acceleration to the elevator abnormal operation decision controller 500 in real time. The camera 300 is installed on the ceiling of the elevator and photographs the inside of the elevator, And transmits the image to the elevator unsteady driving determination control unit 500 in real time. The user input unit 400 is for inputting a user request to the elevator abnormality determination control unit 500 when the user needs it, and may be a conventional input unit. The communication unit 700 may be formed as a wired or wireless communication unit as a means for transmitting a report on the abnormal operation of the elevator to the outside. The screen display unit 800 may be provided to display a report on the abnormal operation of the elevator on the screen or to display the state of the elevator on the screen.

The specific configuration of the elevator abnormal-operation judging controller 500 is shown in Fig. The configuration of the elevator abnormality operation determination control unit 500 shown in FIG. 3 is divided into functional units rather than physical units. Accordingly, such functional units may be performed by a control unit having a single physical configuration, or may be performed cooperatively by control units having two or more physical configurations.

Specifically, the elevator unstable operation determination control unit 500 includes an elevator acceleration determination unit 510, an elevator passenger behavior pattern determination unit 520, an elevator speed determination unit 530, an elevator door open / close determination unit 540, A data storage unit 560, and an elevator abnormal operation reporting unit 570. The data storage unit 560 and the data storage unit 560 are the same as those shown in FIG.

4 is a diagram showing an example of an elevator reference acceleration profile and an elevator reference velocity profile. In this specification, the elevator reference speed profile means a graph of a change in speed over time in a situation where the elevator starts from a certain floor (departure floor) to a certain floor (destination floor), and the elevator reference acceleration profile Means a graph of the change in acceleration over time in such a situation. The ideal elevator starts at a constant rate after starting at a constant rate and then stops at a constant rate when it arrives. Accordingly, the acceleration of the elevator is increased near the starting floor and then decreased to 0, then decreased to be negative value near the target floor, then increased again, and becomes 0 when the elevator stops. The elevator reference acceleration profile and the elevator reference velocity profile are represented by smooth curves and straight lines, as shown in FIG. Thus, the elevator reference acceleration profile and the elevator reference velocity profile are ideal acceleration profiles and velocity profiles of the elevator.

5 is a diagram showing an example of an actual elevator acceleration profile and an elevator speed profile. The elevator can not be operated in accordance with the elevator reference acceleration profile and the elevator reference speed profile as shown in FIG. 4 due to internal and external factors even though the elevator actually runs as programmed. However, the elevator can not be operated in a somewhat irregular manner . However, such irregular operation will remain within a predetermined range with respect to the elevator-based acceleration profile and the elevator-reference velocity profile if there is no defect in the elevator or no external impact.

6 is a view for explaining the normal operation and the abnormal operation of the elevator. If the actual acceleration and the actual speed of the elevator are within a range having a constant width centering on the elevator reference acceleration profile and the elevator reference speed profile, it can be estimated that the elevator is operating normally. On the other hand, if the elevator base acceleration profile and the elevator base speed profile are deviated from a range having a constant width, the elevator can be evaluated to be operating abnormally. FIG. 6 shows an example in which the elevator travels at a speed far exceeding the set speed (abnormal high speed section) and an example in which the elevator travels at a speed much lower than the set speed (abnormal low speed section) Is shown as an example.

Therefore, it is reasonable to determine that the elevator is operating abnormally when the speed and acceleration of the elevator exceed the reference range. Accordingly, the elevator abnormal driving determination control unit 500 of the elevator abnormal driving detection apparatus of the present invention determines whether the elevator acceleration and the speed are out of a predetermined reference range.

7 and 8, a procedure for determining an abnormal operation of an elevator by an elevator acceleration will be described with reference to FIGS.

The elevator acceleration determination unit 510 receives information on elevator operation from the elevator operation control unit 100 (hereinafter, referred to as 'elevator operation information') (step S100). The information thus received is stored in the memory unit 600 by the data storage processing unit 560. Herein, the elevator driving information is information input by the elevator user, and includes information on the starting floor and the arriving floor, information on the floor where the elevator is currently stopped or passing, and the elevator operation control unit 100 determines the current speed of the elevator The present speed of the elevator, the set running speed of the elevator, the acceleration time to the running speed, or the deceleration time until the vehicle stops at the running speed. The information on the inter-floor distance of the building may be received from the elevator operation control unit 100 or may be stored in the memory unit 600 separately.

The elevator acceleration determining unit 510 calculates the elevator-specific acceleration profile using the elevator driving information (step S110). The elevator reference acceleration profile thus calculated may be stored in the memory unit 600 by the data storage processor 560.

Meanwhile, instead of directly calculating the elevator-specific acceleration profile directly from the elevator operation information, the elevator-acceleration determining unit 510 determines whether the elevator-specific acceleration profile corresponding to the elevator-operation information among the elevator-specific acceleration profiles stored in the memory unit 600 The program may be configured to select a profile. In this case, the memory unit 600 needs to store an elevator reference acceleration profile for combinations in which an arbitrary starting layer and a target layer are selected and configured in all the layers operated by the elevator. For example, 20 C 2 x 2 = 380 elevator-based acceleration profiles should be stored for a building having 20 floors including ground and underground, and the elevator acceleration determining unit 510 determines the elevator-based acceleration profile from the elevator- The target floor is identified and the elevator-specific acceleration profile corresponding to the target floor is selected in the memory unit 600. [

The elevator acceleration determining unit 510 also receives the elevator acceleration from the acceleration sensor 200 in real time (step S130). The acceleration information thus received is stored in the memory unit 600 by the data storage processor 560.

The elevator acceleration determining unit 510 determines whether the acceleration of the elevator is out of a predetermined range with respect to the elevator-based acceleration profile (step S140), and determines that an event has occurred (step S150). On the other hand, if the acceleration of the elevator does not deviate from the predetermined range with respect to the elevator-based acceleration profile, the process returns to step S100 and the procedure is continued. At this time, if the elevator operation information is received and the elevator reference acceleration profile is calculated, these steps are omitted.

Meanwhile, in addition to the operation of the elevator acceleration determining unit 510, the elevator passenger behavior pattern determining unit 520 receives the photographed image from the camera 300 installed in the ceiling of the elevator and photographs the image of the elevator car in real time (Step S120). The photographed image thus received is stored in the memory unit 600 by the data storage processing unit 560.

The acceleration information and the image information stored in the memory unit 600 by the data storage processor 560 are stored as acceleration and image information with respect to time and the acceleration information and the image information are stored separately or independently But is stored as associated information. That is, information about the same time axis. In other words, it is stored as a data set having a format such as (acceleration, shot image, time).

If it is determined that the event is generated by the elevator acceleration determination unit 510, the elevator passenger behavior pattern determination unit 520 selects a reference image corresponding to the photographed image (step S160). Here, the reference image is selected from context-specific reference images for recognizing the passenger behavior stored in the memory unit 600. The context-based reference image for recognizing the passenger behavior referred to in this specification means that the passenger is divided into an impact behavior pattern and a non-impact behavior pattern sufficiently influencing the acceleration of the elevator. The elevator passenger behavior pattern determination unit 520 compares the photographed image with the reference images stored in the memory unit 600, and selects the reference image having the highest similarity.

Techniques for evaluating similarity by comparing images of human body parts, particularly images of faces, are generally known, and techniques for evaluating similarity by comparing not only one image but also a plurality of consecutive images are also generally known . Patent Registration No. 10-1407952 (Registered on Apr. 10, 2014) divides classified reference images into crime patterns and non-criminal patterns in order to recognize the behavior of the passengers in the elevator, stores them in the memory unit, And judges whether or not a crime has occurred in the elevator by comparing the behavior of the elevator crane with the reference images. Specifically, this patented invention provides a camera on a ceiling of an elevator to obtain an image of an elevator car, divides the image into equally spaced cells to form a virtual matrix, calculates the optical flow in each matrix cell, The motion descriptors are classified and accumulated according to their positions and directions to generate motion descriptors. The motion descriptors are compared with context-specific representative motion descriptors stored in the memory unit to determine whether a dangerous situation has occurred.

In the present invention, a process of selecting a reference image corresponding to a photographed image may be applied as described above. That is, the elevator passenger behavior pattern determination unit 520 determines the behavior pattern of the elevator passenger by dividing the image photographed by the camera 300 into equally spaced cells to form a virtual matrix, and calculates the optical flow in each matrix cell The motion descriptors are classified and accumulated according to their positions and directions, and the motion descriptors are compared with the representative motion descriptors stored in advance in the memory unit 600 to select the most similar representative motion descriptors . In the present invention, another known behavior recognition method may be applied to the process of selecting a reference image corresponding to a photographed image.

Next, the elevator abnormal driving determination unit 550 determines whether the selected reference image is an impact behavior pattern that sufficiently affects the acceleration of the elevator (Step S170), and in such a case, Since the occurrence is due to the impact behavior of the passenger, it is determined that the elevator is operating normally (step S180). However, since such a determination may be erroneous, the data storage processor 560 may set an example for a time range separated by a predetermined time interval around the event occurrence time, In step S190, a data set relating to the elevator acceleration and the photographed image is stored in the memory for a time period of 5 seconds, that is, 10 seconds as a whole, around the event occurrence time. At this time, the data set to be stored is classified by the passenger impact train and stored. As a result, the administrator can review such data later, and correct the fact that an event caused by a fault of the elevator itself is erroneously determined as an event caused by an impact of the occupant, thereby further elaborating the device.

On the other hand, if the elevator unstable operation determination unit 550 determines that the selected reference image is not an impact behavior pattern that sufficiently affects the acceleration of the elevator, the above-mentioned event occurrence may result from a defect in the elevator itself , It is determined that the elevator is operating abnormally (step S200). Then, the data storage processor 560 stores the event occurrence time in the range of the predetermined time interval before and after the event occurrence time, for example, in the range of 5 seconds before and after the event occurrence time, The data sets relating to the acceleration and the shot image are stored in the memory unit (step S210). At this time, the data set to be stored is classified as the abnormal driving of the elevator. The elevator abnormal operation reporting unit 570 reports to the outside through the screen display unit 800 or the communication unit 700 that the elevator is operating abnormally.

When the method of the present invention is applied in the process of selecting the reference image corresponding to the photographed image in the present invention, the elevator abnormal driving determination unit 550 determines that the selected representative motion descriptor And determines that the elevator is normally operating.

The elevator abnormal driving determination unit 550 determines the abnormal driving of the elevator and stores the number of abnormal driving occurrences in the elevator in the memory unit 600. That is, +1 is added to a variable relating to the number of times of occurrence of an abnormal operation in the elevator set in the memory unit 600. Thereafter, the elevator abnormal operation judging unit 550 judges whether the number of times of occurrence of such an elevator abnormal operation has reached the reference number (step 230), and if so, issues an alarm (step S240). Here, the alarm can be displayed on the screen display unit 800 or transmitted outside to report an abnormal operation of the elevator. The number of times of reference may be set appropriately according to the type and state of the elevator, and may be more finely set as the experience of using the system of the present invention accumulates.

Thereafter, the elevator abnormal driving determination unit 550 determines whether or not a termination command has been input from the user (step S250), and if so, terminates the program according to the present invention, and if not, returns to step S100 and continues the procedure.

Next, with reference to FIG. 9, a process for determining whether or not the elevator is abnormal due to the elevator speed will be described.

The elevator speed determination unit 530 receives elevator operation information from the elevator operation control unit 100 (step S100). The information thus received is stored in the memory unit 600 by the data storage processing unit 560. Reception of the elevator operation information is as described above.

The elevator speed determination unit 530 calculates the elevator reference speed profile using such elevator driving information (step S300). The elevator reference speed profile thus calculated may be stored in the memory unit 600 by the data storage processor 560. [

Instead of directly calculating the elevator reference speed profile directly from the elevator operation information, the elevator speed determining unit 530 may calculate the elevator reference speeds corresponding to the elevator operation information among the elevator reference speed profiles stored in the memory unit 600 The program may be configured to select a profile. In this case, the elevator reference velocity profile for combinations in which an arbitrary starting layer and a target layer are selected and configured in all layers of the elevator are stored in the memory unit 600. For example, 20 C 2 x 2 = 380 elevator reference speed profiles should be stored for a 20-story building including ground and underground, and the elevator speed determination unit 530 determines the elevator speed from the elevator operation information, The target layer is identified and the elevator reference velocity profile matching therewith is selected in the memory unit 600. [

The elevator speed determination unit 530 also calculates the elevator speed in real time using the elevator driving information (step S310). The calculated speed information is stored in the memory unit 600 by the data storage processor 560. [ Since the elevator speed calculated by the elevator speed determination unit 530 is calculated from the elevator running information, it is difficult to calculate the instantaneous speed if the elevator instantaneous speed is not included in the elevator running information, and is calculated as the inter-layer mean speed. Since the elevator operation information includes information for stopping or passing through a certain floor and the inter-floor distance is included in the elevator operation information or stored separately in the memory unit 600, the time passing through each floor is measured, The average speed can be calculated.

The elevator unstable operation determining unit 550 determines whether the speed of the elevator is out of a predetermined range with respect to the elevator reference speed profile (step S320), and determines that the elevator is operating abnormally in such a case (step S330) . On the other hand, when the speed of the elevator does not deviate from the predetermined range with respect to the elevator reference speed profile, the process returns to step S100 and the procedure is continued. At this time, if the elevator operation information is received and the elevator reference speed profile is calculated, these steps are omitted.

Next, the data storage processor 560 sets a time range of 5 seconds each, for example, about 10 seconds as a whole, for a time range separated by a predetermined time interval before and after the time when the speed of the elevator is out of the elevator reference speed profile The actual elevator speed profile is stored in the memory unit for a while (step S340). At this time, the stored actual elevator speed profile is classified as an elevator unstable operation and stored.

Next, the elevator abnormal operation reporting unit 570 reports to the outside through the screen display unit 800 or the communication unit 700 that the elevator has operated abnormally (step S350)

Then, the elevator abnormal driving determination unit 550 determines whether or not a termination command has been input from the user (step S360), and if so, terminates the program according to the present invention, and if not, returns to step S100 and continues the procedure.

9, the elevator abnormal operation determination unit 550 may determine the abnormal operation of the elevator and may store the number of abnormal operation of the elevator in the memory unit 600, as described above. That is, +1 can be counted for a variable relating to the number of times of occurrence of an abnormal operation in the elevator set in the memory unit 600. [ Then, the elevator abnormal-operation judging unit 550 judges whether or not the number of occurrences of the abnormal-operation of the elevator has reached the reference number, and if so, can issue an alarm.

Next, with reference to FIG. 10, a process for determining whether or not the elevator is abnormal due to opening and closing of the elevator door will be described.

The elevator door opening / closing determiner 540 receives elevator operation information from the elevator operation control unit 100 (step S100). The information thus received is stored in the memory unit 600 by the data storage processing unit 560. Reception of the elevator operation information is as described above.

The elevator door opening / closing determiner 540 analyzes the elevator door opening / closing request using the elevator operating information (step S400). The elevator door opening / closing request thus analyzed can be stored in the memory unit 600 by the data storage processing unit 560. [

The elevator door opening / closing determiner 540 also receives the photographed image from the camera (step S120), and the data storage processor 560 stores it in the memory unit 600. FIG. This process is substantially the same as described above.

Then, the elevator door opening / closing determiner 540 determines the door opening / closing state from the photographed image (step S410). The door opening / closing state judged from the photographed image can be classified as full opening, full closing and partial opening.

The elevator abnormal operation judging unit 550 judges whether the actual opening / closing state of the elevator door matches the door opening / closing request requested by the passenger (Step S420). In this case, since there is no abnormality in the elevator operation, Continue with the procedure. At this time, if the elevator operation information has already been received and the elevator door opening / closing request is analyzed, these steps are omitted.

On the other hand, if the actual opening / closing state of the elevator door does not match the door opening / closing request requested by the passenger, the elevator abnormal operation judging unit 550 judges that the elevator is operating abnormally (step S420). As mentioned above, the door opening / closing state judged from the photographed image can be classified as full opening, full closing and partial opening. Since the partial opening state is not a request by the passenger in the elevator, It is judged that it does not coincide with the door opening / closing request unconditionally.

Thereafter, the data storage processor 560 classifies the door opening / closing state and door opening / closing request data into the elevator unstable operation and stores it in the memory unit 600 (step S440).

Next, the elevator abnormal operation reporting unit 570 reports to the outside through the screen display unit 800 or the communication unit 700 that the elevator has operated abnormally (step S450).

Then, the elevator abnormality determination unit 550 determines whether or not a termination command has been input from the user (step S460), and if so, terminates the program according to the present invention, and if not, returns to step S100 and continues the procedure.

Although not illustrated in FIG. 10, as described above, the elevator abnormal operation determination unit 550 may determine the abnormal operation of the elevator and may store the number of abnormal operations of the elevator in the memory unit 600. FIG. That is, +1 can be counted for a variable relating to the number of times of occurrence of an abnormal operation in the elevator set in the memory unit 600. [ Then, the elevator abnormal-operation judging unit 550 judges whether or not the number of occurrences of the abnormal-operation of the elevator has reached the reference number, and if so, can issue an alarm.

10: elevator abnormal operation detection system 100: elevator operation control unit
200: acceleration sensor 300: camera
400: user input part
500: elevator abnormal operation determination control unit 600: memory unit
700: communication unit 800:

Claims (9)

A memory unit, and an elevator abnormal driving determination control unit,
The elevator abnormality operation determination control unit receives the information on the elevator operation from the elevator operation control unit and calculates an elevator reference acceleration profile according to the time from the starting floor to the target floor for the elevator operation and also detects the elevator acceleration from the acceleration sensor in real time An elevator acceleration determining unit for determining that an event has occurred when the elevator acceleration exceeds a predetermined range with respect to the elevator-specific acceleration profile;
An elevator passenger behavior control unit installed on a ceiling of the elevator and receiving an image photographed from a camera for photographing an image of an elevator car and comparing the photographed image with a reference image of a situation stored in the memory unit to determine a behavior pattern of an elevator passenger A pattern determination unit;
When the elevator acceleration determination unit determines that the elevator acceleration is out of the predetermined range with respect to the elevator base acceleration profile, that is, when it is determined that the event occurs, the elevator vehicle occupant behavior pattern determined by the elevator vehicle behavior pattern determination unit impacts the elevator An elevator abnormality driving judging unit for judging that the elevator is normally operated in the case of a behavior pattern; And
Wherein the control unit stores the elevator acceleration received in real time from the acceleration sensor and the photographed image received in real time from the camera in the memory unit as a data set according to the time and when the elevator acceleration determining unit determines that the event has occurred, (Hereinafter referred to as " event occurrence time ") deviating from the elevator-reference acceleration profile by a predetermined time interval before and after the data set for the elevator- And a data storage processor for storing the data in the storage unit. The method according to claim 1,
When the elevator abnormal operation determination unit determines that the elevator has abnormally operated, the elevator abnormal operation determination control unit reports an abnormal operation of the elevator to the display device or reports the elevator abnormal operation reporting unit to the outside by wire or wireless communication And an elevator abnormality detecting unit for detecting an elevator abnormality. 4. The method according to any one of claims 1 to 3,
Wherein the elevator abnormal operation determination unit counts the number of times that the abnormal operation of the elevator has occurred and stores the counted number in the memory unit and the elevator abnormal operation reporting unit issues an alarm when the number of abnormal operation occurrences of the elevator reaches a predetermined reference number Characterized by an elevator unsteady operating sensor. The method of claim 3,
Wherein the elevator abnormal operation reporting unit reports an abnormal operation of the elevator but does not report the occurrence of the event. The method according to claim 1,
Wherein the memory unit stores an elevator-specific acceleration profile for combinations of selected arbitrary starting layers and object layers in all layers of the elevator, and the elevator-acceleration determining unit determines the elevation- Wherein the controller calculates the elevator reference acceleration profile by selecting an elevator reference acceleration profile that matches the information on the elevator operation. The method according to claim 1,
The behavior pattern determination unit of the elevator passenger behavior pattern divides the image captured by the camera into equally spaced cells to form a virtual matrix, calculates optical flows in the matrix cells, The motion descriptor is classified and accumulated in accordance with the position and direction, and the motion descriptor is compared with the context-specific representative motion descriptors stored in advance in the memory unit to select the most similar representative motion descriptor,
Wherein the elevator abnormal driving determination unit determines that the selected representative motion descriptor is a behavior pattern that gives an impact to the elevator of the elevator passenger and determines that the elevator is normally operating. 7. The method according to any one of claims 1 to 6,
The elevator abnormality determination control unit further includes an elevator speed determination unit. The elevator speed determination unit receives information on the elevator operation from the elevator operation control unit and notifies the elevator operation information Wherein the controller determines whether the elevator speed is out of a predetermined range with respect to the elevator reference speed profile by calculating a speed profile and calculating an elevator speed in real time and the elevator abnormality operation determination portion determines that the elevator speed is lower than the elevator reference speed profile Wherein the control unit determines that the elevator is operating abnormally when it is out of a predetermined range with respect to the elevator. 8. The method according to any one of claims 1 to 7,
The elevator door opening / closing determination unit may further include an elevator door opening / closing determination unit operable to determine an opening / closing state of the elevator door recognized from the image photographed by the camera, and an elevator door opening / When the elevator door opening / closing determination unit determines that the opening / closing state of the elevator door and the opening / closing request of the elevator door do not coincide with each other, the elevator abnormal operation determination unit determines whether the elevator door open / Is judged to be operating abnormally. ≪ RTI ID = 0.0 > 8. < / RTI > An elevator operation control unit, an acceleration sensor, a camera, and an elevator abnormal driving detection device according to any one of claims 1 to 8.
KR1020140112159A 2014-08-27 2014-08-27 Device And System For Elevator Abnormal Operation Detection KR20160025224A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170249728A1 (en) * 2014-11-19 2017-08-31 Fujitsu Limited Abnormality detection device, abnormality detection method and non-transitory computer-readable recording medium
KR101874639B1 (en) * 2016-09-09 2018-07-04 이노뎁 주식회사 CCTV camera device for elevators using motion sensor
CN114212637A (en) * 2021-12-15 2022-03-22 北京建筑机械化研究院有限公司 Method and system for detecting running stability of elevator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170249728A1 (en) * 2014-11-19 2017-08-31 Fujitsu Limited Abnormality detection device, abnormality detection method and non-transitory computer-readable recording medium
US10467745B2 (en) * 2014-11-19 2019-11-05 Fujitsu Limited Abnormality detection device, abnormality detection method and non-transitory computer-readable recording medium
KR101874639B1 (en) * 2016-09-09 2018-07-04 이노뎁 주식회사 CCTV camera device for elevators using motion sensor
CN114212637A (en) * 2021-12-15 2022-03-22 北京建筑机械化研究院有限公司 Method and system for detecting running stability of elevator

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