JP4935014B2 - Elevator crime prevention driving apparatus and crime prevention driving setting changing method - Google Patents

Description

  This invention detects the occurrence of a passenger rampage from the camera image of an elevator car security camera device, and causes the elevator to perform a specific operation suitable for the rampage of the passenger, and also maintains the threshold of the rampage etc. The present invention relates to an elevator crime prevention driving device and a crime prevention operation setting changing method that can be changed by a terminal device.

Conventionally, methods for preventing crimes in elevator cars include stop operation at each floor, a security alarm device, and security operation. Each floor stop operation forcibly stops each floor in response to a car call (If you enter the car from the first floor and register a car call on the 10th floor, it will also stop on the 2nd to 9th floors where no call is registered. ) To shorten the time in which the cage is closed. This operation is mainly controlled by time and is often selected only at night. In addition, for security alarm operation, there is a push button for the security alarm device in the car, and if the user feels danger and presses the push button, the car call will be stopped at each floor and the car will be closed. prevent. A third party is notified by ringing a dedicated buzzer installed at the hall at the same time as stopping on each floor. Stopping operation at each floor and ringing of the buzzer are canceled by a third party operation. Also, in the crime prevention operation, there is a push button for crime prevention operation at the reference floor, and when the push button is pressed, a car call that does not respond to the hall call can be registered to prevent passengers from entering from other floors.
In addition, as a prior art, there is known an elevator crime prevention operation device that detects the occurrence of an abnormality in the car due to the car call registration state, the load fluctuation in the car, and controls the operation such as stopping the nearest floor and sounding the announcement. (For example, refer to Patent Document 1).

JP 2000-351547 A

  However, since the conventional methods for preventing crimes require special operations and involve special driving, there is no room for performing such operations in an emergency, and the user may not know the operations. In addition, there is a problem in that service efficiency is reduced due to constant special operation.

  The present invention has been made to solve the above-described problems, and quantifies the degree of rampage by analyzing the camera image of the elevator car security camera device, and performs a plurality of elevator operation operations based on the quantification result. Thus, there is provided an elevator crime prevention driving device and a crime prevention driving setting changing method in which the operation and the threshold value leading to the operation can be changed by the portable maintenance terminal device.

In the crime prevention driving apparatus for an elevator according to the present invention, the camera installed in the elevator car and photographing the passenger in the car, and analyzing the recorded image photographed by the camera, the passenger's rampage level is quantified and the rampage is detected. And an external recording device including an image processing board to be detected. The image processing board includes door opening / closing determination means for determining the open / closed state of the car door, and two images taken by the camera at different shooting times. Calculates the optical flow, which is an apparent velocity distribution that represents the direction and magnitude of the movement of each point in the image, and the movement direction of each point in the optical flow image, variance value or standard deviation of the movement magnitude a motion calculating means for calculating a variation amount of the orientation or magnitude of the motion of the passenger in at least one of the orientation or size of the passenger movement from the passenger movement direction or large And determining violent determining means for violent passenger by comparing the difference between the variation amount and violent determination threshold passengers, the average value of the variation amount of the orientation or magnitude of the motion of the passenger is classified into open or closed state of the door and The image processing board is a passenger having a correction means for correcting a variation amount of a passenger's movement or magnitude used in a rampage determination means or a passenger rampage determination threshold based on a statistical model composed of a database of variance values. When a rampage is detected, a communication device is notified of the detection result to determine the strength of the rampage, and when the image processing board detects a passenger rampage, the degree of the strength of the passenger rampage from the communication device When the elevator control panel and the image processing board that are required to drive the elevator in response to the detection of the passenger's rampage, the communication device issues a notification according to the degree of the passenger's rampage degree. A maintenance company monitoring center that is set whether or not, a portable maintenance terminal device that is connected to an elevator control panel, a maintenance company monitoring center, and an image processing board via a communication device, and has a function that can set and change the threshold of the degree of rampage It is equipped with.

The mobile maintenance terminal device, maintenance terminal communication circuit and incorporates a data display and analysis capabilities, the ability to further setting and changing the presence or absence of whether to alarm upon detection of violent degree to maintenance company monitoring center It is what you have.

Further, in the elevator crime prevention operation setting changing method according to the present invention, a camera installed in the elevator car for photographing passengers in the car, and a recorded image photographed by the camera are analyzed to quantify the degree of passenger violence. And an external recording device including an image processing board for detecting a rampage, the image processing board being different from a door open / close determining means for determining an open / closed state of a car door and a shooting time taken by a camera for a predetermined time 2 The optical flow, which is the apparent velocity distribution that represents the direction and magnitude of the movement of each point in the image, is calculated from the images, and the movement direction and the magnitude of the movement of each point in the optical flow image are calculated. a motion calculating means for calculating a variation amount of the orientation or magnitude of the motion of the passenger in at least one of the orientation or size of the passenger of the motion from the value or the standard deviation, the passenger of the dynamic Orientation or amount of dispersion size and the violent determining means for determining to a violent passengers compared with violent determination threshold passengers, orientation or size of the variation amount of movement of the passenger is classified into open or closed state of the door A correction means for correcting a variation amount of a passenger's movement direction or magnitude or a passenger's rampage determination threshold value used in the rampage determination means based on a statistical model composed of a database of average values and variance values of When the processing board detects passenger rampage, the communication device is notified of the detection result to judge the strength of the rampage, and when the image processing board detects passenger rampage, the communication apparatus detects the passenger rampage degree. When the elevator control panel that requires elevator ramping according to the strength level and the image processing board detects the rampage of the passenger, the communication device will increase the level of passenger rampage. The maintenance company monitoring center, which is set to determine whether or not to issue the alarm at the same time, and the function that can be connected to the elevator control panel, the maintenance company monitoring center, and the image processing board via the communication device, and can set and change the threshold of the rampage A portable maintenance terminal device that is carried at each site and connected to an elevator at the site, and arbitrarily sets / changes the threshold of the degree of rampage of each elevator at each site. It is.

The mobile maintenance terminal device, maintenance terminal communication circuit and incorporates a data display and analysis capabilities, further the existence of whether to alarm to the maintenance company monitoring center on detection of violent degree arbitrarily in each site Set and change.

According to this invention, the camera for photographing passengers in the car, and an external recording device including an image processing board for detecting the rampage by quantifying the degree of rampage by analyzing the recorded image, the image processing board, Door opening / closing determination means for determining the open / closed state of the car door, and apparent speed distribution representing the direction and size of movement of each point in the image from two images taken by the camera at different shooting times. Is calculated from the direction of movement of each point in the optical flow image, the variance of the magnitude of the movement or the standard deviation , and at least one of the direction and magnitude of the passenger movement. a motion calculating means for calculating a variation amount of the orientation or size, and rage determining means for determining violent passenger by comparing the violent determination threshold variation amount and passenger orientation or size of the occupant of the motion Movement of passengers used in violent determining means based from the database the mean value and the variance of the direction or magnitude of the variation amount of the motion of passengers that are classified by the opening and closing state of the door on a statistical model comprised orientation or size of the A correction device that corrects a variation amount or a passenger rampage determination threshold, and when the image processing board detects a passenger rampage, a communication device that notifies the detection result and determines the strength of the rampage, When the image processing board detects a passenger rampage, the communication device detects an elevator ramp that requires elevator ramping according to the level of passenger rampage, and the image processing board detects the passenger rampage. A maintenance company monitoring center that determines whether or not to issue a warning according to the degree of passenger rampage from the communication device, and the elevator control panel, maintenance meeting via the communication device The mobile maintenance terminal device is connected to the monitoring center and the image processing board and has a function of setting and changing the threshold value of the rampage level. Therefore, the threshold value of the rampage level can be easily set and changed by the mobile maintenance terminal device. it can.

Embodiment 1 FIG.
FIG. 1 is a system configuration diagram showing an elevator crime prevention driving apparatus according to Embodiment 1 of the present invention, FIG. 2 is a flowchart showing an operation flow of the elevator crime prevention driving apparatus according to Embodiment 1 of the present invention, and FIG. FIG. 4 is a block diagram showing a ramp detection device used in the crime prevention driving apparatus of the elevator according to Embodiment 1 of the present invention, and FIG. 5 is an operation of the ramp detection device. It is a flowchart which shows.

  In FIG. 1, reference numeral 1 denotes an elevator car, 2 is a security camera installed in the car 1 and photographs passengers in the car, and 3 includes an image processing board 4 connected to the security camera 2. This is an external recording device that monitors the vehicle, and detects the rampage by quantifying the passenger rampage level by analyzing the recorded image taken by the security camera 2. A communication device 5 is connected to the image processing board 4 of the external recording device 3. When the external recording device 3 quantifies the passenger's rampage and detects the rampage, it is transmitted to the communication device 5 as a detection result of the rampage, and the communication device 5 determines the strength of the rampage and determines the level of the rampage. That is, a command is issued to perform the rampage detection operation on the elevator side. There are three levels of violence: large, medium, and small. When the level of violence is small, only warnings by announcements (such as buzzer sounds or “abnormal movements detected”) are given, and criminals are warned. If the level of violence is medium, in addition to warnings by announcements (such as a buzzer sounding or “abnormal movement detected”), stop while driving and warn offenders And release the closed room early. When the intensity of the rampage is large, the same operation as when the push button for the security alarm device is pressed is performed automatically. Further, the communication device 5 determines the strength of the rampage and performs a ramp detection detection process to the maintenance company monitoring center 7. Reference numeral 8 denotes a portable maintenance terminal device that can be carried by a maintenance worker. This portable maintenance terminal device 8 has a built-in maintenance terminal communication circuit, data display / analysis function, etc., and via the communication device 5, an elevator control panel 6, a maintenance company monitoring center 7, an external recording device 3, and image processing. A function that is connected to the circuit board 4 and the like, and can freely set and change the threshold value of the rampage, a function that sets or changes whether or not the maintenance company monitoring center 7 is notified when the rampage is detected, and the report destination It has a function to set and change the designation. The crime prevention driving device of the present invention has a function of learning a threshold value of a rampage level, a function that becomes an appropriate value for each site, and a function that switches a security camera image being recorded on the external recording device 3 to a high density when a rampage is detected. Have.

Next, the operation flow of the elevator crime prevention operation apparatus will be described with reference to FIG.
In FIG. 2, an image is input to the image processing board 4 of the external recording device 3 from the security camera 2 in the elevator car 1 in step S1, and image processing by the image processing board 4 is performed in step S2. In step S3, the degree of rampage is quantified by the image processing substrate 3 to detect rampage. When the rampage is detected, the detection result of the rampage degree is transmitted to the communication device 5 in step S4, and high density recording is requested to the external recording device in step S5. Next, in steps S6 to S8, the strength of the rampage degree is determined in three stages of large, medium, and small. If the intensity of the rampage is large, an announcement request is sent to the elevator in step S9, an rampage driving request is sent to the elevator in step S10, an alarm is set in step S11, and an alert is issued to the maintenance company monitoring center 7 in step S12. Do. If the level of rampage is medium, an announcement request is sent to the elevator in step S13, a rampage operation is requested to the elevator in step S14, the alarm is set in step S15, and the maintenance company monitoring center 7 is issued in step S16. Give information. If the intensity of the rampage is small, an announcement request is sent to the elevator in step S17, a notification is set in step S18, and a notification is sent to the maintenance company monitoring center 7 in step S19.

Next, the operation flow on the elevator side will be described with reference to FIG.
In FIG. 3, when there is a rampage operation request to the elevator in step S21, it is determined in step S22 whether the rampage operation of the elevator is possible. If the rampage is possible, it is determined in step S23 whether the rampage is requested. If a large runaway is requested in step S23, a security alarm device operation command is automatically output in step S24. If it is requested in step S23 that the rampage is being performed, it is determined whether or not the car is traveling in step S25. If the car is traveling, a nearest floor stop command is output in step S26.

An apparatus for quantifying the degree of rampage in the image processing substrate 4 in the external recording apparatus 3 and detecting the rampage is configured, for example, as shown in FIG.
That is, an image captured by the security camera 2 is output to the motion calculation unit 31. The motion calculation unit 31 calculates the direction and magnitude of movement of each point in the image from two images taken by the security camera 2 with different shooting times for a predetermined time, and the passenger is calculated from the direction and magnitude of the movement of each point. It is a movement calculation means which calculates the variation amount of the movement of at least one passenger among the direction or magnitude of the movement. The two images having different shooting times for a predetermined time are the two images before and after consecutive shooting. For example, when a video camera is used to capture an image using the NTSC system, the image is captured every 1/30 seconds. In this case, the two images that are different for a predetermined time can be two consecutive images, but by thinning out the middle image or changing the shooting interval, it can be set every 1/10 seconds, Or every second. In addition, the motion calculation unit 31 includes a storage area and can appropriately store the received image. The variation amount of the passenger motion calculated by the motion calculation unit 31 is output to the correction unit 32. The inside of the car 1 is a closed space, and the door open / close determining unit 33 is a door open / close determining unit that determines the open / closed state of the door that communicates with the inside and outside of the car 1 in the closed space. The door open / close determining unit 33 determines the door open / closed state from the image taken by the security camera 2 and outputs the result to the motion calculating unit 31 and the correcting unit 32. The motion calculation unit 31 calculates the amount of variation in passenger movement, excluding passenger entry / exit data into the car 1. The correction unit 32 is based on a statistical model composed of a database of average values and variance values of passenger movements classified for each door open / closed state, and the passenger movement fluctuations used by the rampage determination means or the passenger movements. It is a correction means for correcting the rampage determination threshold. The correction unit 32 corrects the amount of variation in passenger movement using the statistical model stored in the statistical model database 34 and outputs the result to the rampage determination unit 35. The rampage determination unit 35 is rampage determination means for comparing the amount of variation in passenger movement with the passenger rampage determination threshold value to determine passenger rampage. The rampage determination unit 35 performs threshold processing on the corrected variation in the movement of the passenger to determine whether the passenger is rampant. About the content of the database which comprises a statistical model, the average value and dispersion value of the variation amount of the movement of the passenger classified for every kind of closed space may be sufficient. The types of closed space include a case where the wall is glazed, a window is attached to the wall, the color of the wall is different, and the pattern is different. Moreover, about the content of the database, the database of the average value and dispersion | variation value of the variation amount of the movement of the passenger classified for every angle of the security camera 2 may be sufficient. Based on the statistical model configured from such a database, the correction unit 32 corrects the variation amount of the passenger movement or the passenger rampage determination threshold value and outputs the corrected value to the ramp determination unit 35.

FIG. 5 is a flowchart showing the operation of the apparatus for detecting a rampage. In step S31, an image is taken by the security camera 2, and the image is input. In step S32, the door open / close determining unit 33 determines the door open / closed state. Next, in step S33, the motion calculation unit 31 calculates an optical flow from two images whose shooting times are different by a predetermined time. This optical flow is an apparent velocity distribution representing the direction and magnitude of movement at each point of the image. In this way, paying attention to the amount of variation in passenger movement that correlates with rampage movement, it is determined that there is rampage when the variation is large. Can be detected. Subsequently, in step S34, the motion calculation unit 31 calculates the amount of variation in passenger movement from the optical flow. The amount of variation in the movement of the passenger is, for example, variation in the direction of movement of the passenger or variation in the size of the movement of the passenger, and the direction of movement obtained at each point of the image, the variance value of the size of movement, or the standard Calculated as deviation. In step S35, the correction unit 32 corrects the amount of variation in passenger movement using the statistical model stored in the statistical model database 34, and reduces the dependence on the installation conditions and environment of the security camera 2 to a value. Correct it. A statistical model is prepared in advance for each monitoring area (inside the car) and each door open / closed state. For example, after the installation of the security camera 2, the amount of variation in passenger movement is calculated on a trial basis with respect to normal passenger movement, and the temporal average value M and variance value σ are stored as a statistical model. When the variation amount of the passenger movement calculated in step S34 is V, a correction value V ′ is calculated from equation (1) in step S35.
V ′ = (VM) ÷ σ (1)
Finally, in step S <b> 36, the rampage determination unit 35 performs threshold processing on the correction value V ′ to determine whether the passenger is rampant. Here, it is determined that there is a rampage when the correction value V ′ is equal to or greater than the threshold value. The above steps S31 to S36 are repeatedly executed at predetermined time intervals.

BRIEF DESCRIPTION OF THE DRAWINGS It is a system block diagram which shows the crime prevention operation apparatus of the elevator in Embodiment 1 of this invention. It is a flowchart which shows the operation | movement flow of the crime prevention driving apparatus of the elevator in Embodiment 1 of this invention. It is a flowchart which shows the operation | movement flow by the side of the elevator in Embodiment 1 of this invention. It is a block diagram which shows the rampage detection apparatus used for the crime prevention operation apparatus of the elevator in Embodiment 1 of this invention. It is a flowchart which shows operation | movement of a rampage detection apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator car 2 Security camera 3 External recording device 4 Image processing board 5 Communication device 6 Elevator control panel 7 Maintenance company monitoring center 8 Portable maintenance terminal device 31 Motion calculation unit 32 Correction unit
33 Door open / close judgment part 34 Statistical model database 35 Rampage judgment part

Claims (4)

A camera installed in an elevator car for photographing passengers in the car, and an external recording device including an image processing board for detecting a rampage by quantifying a passenger rampage by analyzing a recorded image captured by the camera; The image processing board includes a door open / close determining means for determining an open / closed state of a car door, and a direction of movement of each point in the image from two images taken by the camera at different shooting times. And an optical flow which is an apparent velocity distribution representing the magnitude, and the direction or magnitude of the movement of the passenger from the direction of movement of each point in the image of the optical flow , the variance value or standard deviation of the magnitude of movement. at least one motion calculating means for calculating a variation amount of the orientation or size of the occupant of the motion, the variation amount of the orientation or size of the occupant movement and violent determination threshold passengers of Doo and determining violent determining means for violent passenger by comparing the statistical model and a database of the mean and variance value of the variation amount of the orientation or magnitude of the motion of the passenger is classified into open or closed state of the door And a correction means for correcting the variation amount of the direction or size of the passenger movement used in the rampage determination means or the passenger rampage determination threshold,
When the image processing board detects a passenger rampage, a communication device is notified of the detection result to determine the strength of the rampage,
When the image processing board detects passenger rampage, an elevator control panel is required to drive the rampage of the elevator according to the degree of passenger rampage intensity from the communication device,
When the image processing board detects a passenger rampage, a maintenance company monitoring center that is set whether or not to report according to the degree of the strength of the passenger rampage from the communication device,
A portable maintenance terminal device connected to the elevator control panel, the maintenance company monitoring center, and the image processing board via the communication device, and having a function of setting and changing the threshold value of the rampage;
A crime prevention operation apparatus for an elevator characterized by comprising:   The portable maintenance terminal device has a maintenance terminal communication circuit and a data display / analysis function, and further has a function for setting / changing whether or not to issue a notification to the maintenance company monitoring center when detecting the degree of rampage. The elevator crime prevention operation device according to claim 1, wherein the elevator crime prevention operation device is provided. A camera installed in an elevator car for photographing passengers in the car, and an external recording device including an image processing board for detecting a rampage by quantifying a passenger rampage by analyzing a recorded image captured by the camera; The image processing board includes a door open / close determining means for determining an open / closed state of a car door, and a direction of movement of each point in the image from two images taken by the camera at different shooting times. And an optical flow which is an apparent velocity distribution representing the magnitude, and the direction or magnitude of the movement of the passenger from the direction of movement of each point in the image of the optical flow , the variance value or standard deviation of the magnitude of movement. at least one motion calculating means for calculating a variation amount of the orientation or size of the occupant of the motion, the variation amount of the orientation or size of the occupant movement and violent determination threshold passengers of Doo and determining violent determining means for violent passenger by comparing the statistical model and a database of the mean and variance value of the variation amount of the orientation or magnitude of the motion of the passenger is classified into open or closed state of the door And a correction means for correcting the variation amount of the direction or size of the passenger movement used in the rampage determination means or the passenger rampage determination threshold,
When the image processing board detects a passenger rampage, a communication device is notified of the detection result to determine the strength of the rampage,
When the image processing board detects passenger rampage, an elevator control panel is required to drive the rampage of the elevator according to the degree of passenger rampage intensity from the communication device,
When the image processing board detects a passenger rampage, a maintenance company monitoring center that is set whether or not to report according to the degree of the strength of the passenger rampage from the communication device,
A portable maintenance terminal device connected to the elevator control panel, a maintenance company monitoring center, and an image processing board via the communication device, and having a function capable of setting and changing the threshold of the violence degree;
The portable maintenance terminal device is carried at each site and connected to the elevator at that site, and the threshold for the degree of rampage of each elevator is arbitrarily set and changed at each site. Modification method.   The portable maintenance terminal device has a built-in maintenance terminal communication circuit and data display / analysis function. Furthermore, whether or not to issue a notification to the maintenance company monitoring center at the detection of the level of rampage is arbitrarily set and changed at each site. The elevator crime prevention operation setting changing method according to claim 3.

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