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WO2018105059A1 - Dispositif de surveillance d'ascenseur - Google Patents

Dispositif de surveillance d'ascenseur Download PDF

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Publication number
WO2018105059A1
WO2018105059A1 PCT/JP2016/086394 JP2016086394W WO2018105059A1 WO 2018105059 A1 WO2018105059 A1 WO 2018105059A1 JP 2016086394 W JP2016086394 W JP 2016086394W WO 2018105059 A1 WO2018105059 A1 WO 2018105059A1
Authority
WO
WIPO (PCT)
Prior art keywords
elevator
video data
storage unit
video
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/086394
Other languages
English (en)
Japanese (ja)
Inventor
丸山　清泰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2018555382A priority Critical patent/JP6604616B2/ja
Priority to PCT/JP2016/086394 priority patent/WO2018105059A1/fr
Priority to CN201680090773.0A priority patent/CN110035967B/zh
Publication of WO2018105059A1 publication Critical patent/WO2018105059A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • 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

Definitions

  • the present invention relates to an elevator monitoring apparatus that records video taken by a monitoring camera installed in an elevator car.
  • surveillance cameras and surveillance recorders have been installed in various public facilities such as buildings, stations, and elevators due to the heightened awareness of crime prevention.
  • a surveillance camera is installed in the elevator car for the purpose of crime prevention in a confined space.
  • the video taken by the surveillance camera is monitored at the surveillance center and temporarily displayed on a monitor installed in the elevator car, or recorded on a monitoring device installed in the elevator car, machine room, etc. It is generally done.
  • the above monitoring device encodes video captured by the surveillance camera using still image compression technology, video compression technology, etc., such as hard disk, SSD (Solid State Drive), etc. It is comprised so that it may memorize
  • the present invention has been made in consideration of the above-mentioned problems, and continuously reproduces video recorded in a storage device while reducing the storage capacity of the storage device that records video captured by a surveillance camera. It is an object of the present invention to obtain an elevator monitoring device that can be used.
  • the elevator monitoring apparatus receives a video stream from a volatile storage unit, a nonvolatile storage unit, and a monitoring camera installed in the elevator car, and uses the time when the video stream is received as time information in the video stream.
  • An input control unit that adds and stores the video stream in the volatile storage unit, generates a video data by decoding the video stream stored in the volatile storage unit, and displays the time information added to the video stream as the video data.
  • the time information added to the video data by generating the reduced video data by reducing the capacity of the video data stored in the volatile storage unit Is added to the reduced video data to store the reduced video data in the volatile storage unit, and the reduced video data stored in the volatile storage unit.
  • the time information added to the reduced video data is added to the reduced video stream, and the reduced video stream is stored in the volatile storage unit; Is received, and according to the elevator information, one of the video stream and the reduced video stream stored in the volatile storage unit is selected as the video recording information, and the selected video recording information is recorded in the nonvolatile storage unit.
  • a control unit Is encoded to generate a reduced video stream, the time information added to the reduced video data is added to the reduced video stream, and the reduced video stream is stored in the volatile storage unit; Is received, and according to the elevator information, one of the video stream and the reduced video stream stored in the volatile storage unit is selected as the video recording information, and the selected video recording information is recorded in the nonvolatile storage unit.
  • an elevator monitoring apparatus that can continuously reproduce video recorded in a storage device while reducing the storage capacity of the storage device that records video captured by the monitoring camera. it can.
  • FIG. 5 is a diagram illustrating an example of reference video data stored in a reference video storage unit in FIG. 4. It is a figure which shows an example of the video data preserve
  • FIG. 1 is a block diagram showing a configuration of an elevator monitoring system according to Embodiment 1 of the present invention.
  • the elevator monitoring system includes an elevator monitoring device 1 (hereinafter abbreviated as monitoring device 1), a network 2, a monitoring camera 3, and an elevator control device 4.
  • the monitoring device 1 is connected via a network 2 so as to be communicable with a monitoring camera 3 installed in the elevator car.
  • a monitoring camera 3 for example, a network camera is used.
  • the monitoring camera 3 monitors passengers in the elevator car as monitoring targets.
  • the surveillance camera 3 encodes the captured video according to a moving image compression standard such as MPEG-4 / AVC (also referred to as H.264) to generate a video stream.
  • the monitoring camera 3 transmits the generated video stream to the monitoring device 1 via the network 2.
  • the elevator control device 4 controls the operation of the elevator and grasps the operation status of the elevator.
  • the elevator control device 4 is communicably connected to the monitoring device 1 and transmits elevator information indicating the status of the elevator to the monitoring device 1.
  • the elevator information includes driving information indicating the driving status of the elevator, door opening / closing information indicating the opening / closing status of the elevator door, and boarding information indicating the presence or absence of passengers in the elevator car. Examples of a method for determining the presence or absence of a passenger include a method for determining the presence or absence of a passenger in an elevator car based on a measurement result with a scale installed in the elevator.
  • the monitoring device 1 and the elevator control device 4 sequentially update, for example, a microcomputer that executes arithmetic processing, a ROM (Read Only Memory) that stores data such as program data and fixed value data, and the stored data. This is realized by a rewritten RAM (Random Access Memory).
  • a microcomputer that executes arithmetic processing
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the monitoring apparatus 1 includes an input control unit 11, a volatile storage unit 12, a decoding unit 13, an image processing unit 14, an encoding unit 15, a control unit 16, a nonvolatile storage unit 17, a nonvolatile temporary storage unit 18, and a copy control unit 19. Is provided.
  • the input control unit 11 receives a video stream transmitted from the monitoring camera 3 via the network 2.
  • the input control unit 11 adds the time when the video stream was received to the received video stream as time information, and stores the video stream with the time information added in the volatile storage unit 12.
  • a volatile memory is used as the volatile storage unit 12.
  • the input control unit 11 receives a reference frame called an I picture (Intra Picture) in a unit of video included in a video stream, for example, a GOP (Group Of Picture) unit. Is added to the I picture as time information.
  • I picture Intra Picture
  • GOP Group Of Picture
  • the input control unit 11 receives the video stream from the monitoring camera 3 installed in the elevator car, adds the time at which the video stream is received as time information to the video stream, and adds the video stream to the volatile storage unit. 12 to save.
  • the decoding unit 13 reads and decodes the video stream stored in the volatile storage unit 12, generates the decoded video stream as video data, and stores the video data in the volatile storage unit 12.
  • the decoding unit 13 operates as a decoder corresponding to the moving image compression standard applied to the surveillance camera 3. That is, H. When H.264 is applied, the decoding unit 13 performs H.264. It operates as a decoder corresponding to H.264.
  • the decoding unit 13 When decoding the video stream to generate video data, the decoding unit 13 adds the time information added to the video stream to the video data, and the video data with the time information added to the volatile storage unit 12. save.
  • the decoding unit 13 when decoding the video stream, the decoding unit 13 in addition to the I picture included in the GOP unit, other frames included in the GOP unit, that is, a P picture (Predictive Picture) and a B picture (Bidirectionally) Predictive Picture)) is used to decode all frames included in the GOP unit.
  • a P picture Predictive Picture
  • B picture Bidirectionally
  • the frame rate is determined when the surveillance camera 3 generates a video stream, and information on the frame rate (for example, 15 frames per second, 30 frames per second, etc.) is included in the video stream.
  • the decoding unit 13 designates the time of each frame from the time information added to the I picture of the video stream and the frame rate information of the video stream, and adds the time information to each frame.
  • the decoding unit 13 decodes the video stream stored in the volatile storage unit 12 to generate video data, adds the time information added to the video stream to the video data, and volatilizes the video data. Stored in the sex storage unit 12.
  • the image processing unit 14 reduces the capacity of the video data, generates the video data with the reduced capacity as reduced video data, and stores the reduced video data in the volatile storage unit 12. Specifically, the image processing unit 14 reduces the resolution of the video data stored in the volatile storage unit 12, generates video data with the reduced resolution as reduced video data, and volatilizes the reduced video data.
  • the resolution reduction unit 141 When the resolution reduction unit 141 reduces the resolution of the video data to generate reduced video data, the resolution reduction unit 141 adds the time information added to the video data to the reduced video data, and the reduced video data to which the time information is added. Stored in the volatile storage unit 12.
  • the image processing unit 14 reduces the capacity of the video data stored in the volatile storage unit 12 to generate reduced video data, and adds the time information added to the video data to the reduced video data.
  • the reduced video data is stored in the volatile storage unit 12.
  • the image processing unit 14 reduces the resolution of the video data stored in the volatile storage unit 12 and generates video data with the reduced resolution as reduced video data.
  • the encoding unit 15 converts the reduced video data stored in the volatile storage unit 12 to H.264.
  • the video data is encoded according to a video compression standard such as H.264, the encoded reduced video data is generated as a reduced video stream, and the reduced video stream is stored in the volatile storage unit 12.
  • the encoding unit 15 operates as an encoder to which the same standard as the moving image compression standard applied to the surveillance camera 3 is applied.
  • the encoding unit 15 When encoding the reduced video data to generate a reduced video stream, the encoding unit 15 adds the time information added to the reduced video data to the reduced video stream, and volatilizes the reduced video stream to which the time information is added. Stored in the sex storage unit 12.
  • the encoding unit 15 adds time information to the I picture in a unit of videos included in the reduced video stream, for example, in units of GOPs.
  • the encoding unit 15 encodes the reduced video data stored in the volatile storage unit 12 to generate a reduced video stream, and adds the time information added to the reduced video data to the reduced video stream. Save the reduced video stream in the volatile storage.
  • the control unit 16 receives the elevator information transmitted from the elevator control device 4, and selects one of the video stream and the reduced video stream stored in the volatile storage unit 12 as video recording information according to the elevator information.
  • the selected video recording information is recorded in the nonvolatile storage unit 17.
  • a hard disk drive is used as the nonvolatile storage unit 17.
  • the control unit 16 records the video stream transmitted from the surveillance camera 3 in the nonvolatile storage unit 17 as it is according to the elevator information, and once decodes the video stream while retaining the time information. After that, the operation of recording the reduced video stream, which has been subjected to the image processing for reducing and re-encoding the data capacity, in the nonvolatile storage unit 17 is switched. In addition, when the video recording information is switched between the video stream and the reduced video stream and recorded in the nonvolatile storage unit 17, the control unit 16 performs control so that the time information of the video recording information before and after switching is continuous.
  • the nonvolatile temporary storage unit 18 stores copy range information.
  • the start time for starting the video reproduction and the end time for ending the video reproduction are nonvolatile as the copy range information.
  • the copy control unit 19 corresponds to the video recording information recorded in the nonvolatile storage unit 17 in accordance with the start time and end time included in the copy range information stored in the connected nonvolatile temporary storage unit 18.
  • the video recording information is extracted, and the extracted video recording information is stored in the nonvolatile temporary storage unit 18.
  • the copy control unit 19 since the copy control unit 19 stores the video recording information in the nonvolatile temporary storage unit 18 in accordance with the copy range information, the user can store the video recording information recorded in the nonvolatile storage unit 17 with a personal computer. Can be played.
  • the video stream transmitted from the monitoring camera 3 is input to the input control unit 11 of the monitoring device 1 via the network 2.
  • the input control unit 11 adds time information to the video stream received from the monitoring camera 3 and stores the video stream to which the time information is added in the volatile storage unit 12. The time information is added to the I picture of the video stream.
  • the decoding unit 13 reads and decodes the video stream stored in the volatile storage unit 12, generates the decoded video stream as video data, and stores the video data in the volatile storage unit 12.
  • the decoding unit 13 adds time information to each frame of video data to be generated from time information added to the I picture of the video stream and frame rate information of the video stream.
  • the resolution reduction unit 141 of the image processing unit 14 reduces the resolution of the video data stored in the volatile storage unit 12, generates video data with the reduced resolution as reduced video data, and reduces the reduced video. Data is stored in the volatile storage unit 12.
  • the resolution reduction unit 141 adds the time information added to each frame of the video data so as to be inherited by the reduced video data.
  • the encoding unit 15 converts the reduced video data stored in the volatile storage unit 12 to H.264.
  • the video data is encoded according to a video compression standard such as H.264, the encoded reduced video data is generated as a reduced video stream, and the reduced video stream is stored in the volatile storage unit 12.
  • control unit 16 selects one of the video stream and the reduced video stream stored in the volatile storage unit 12 as video recording information in accordance with the elevator information received from the elevator control device 4, and selects the selected video recording. Information is recorded in the nonvolatile storage unit 17.
  • FIG. 2 is an explanatory diagram illustrating an operation performed by the control unit 16 of FIG. 1 in response to the received elevator information.
  • the types of driving information, door opening / closing information, and boarding information included in the elevator information transmitted from the elevator control device 4 are associated with the types of video recording information that the control unit 16 records in the nonvolatile storage unit 17. It is shown in the figure.
  • control unit 16 determines that the elevator is stopped and the door is open, it is stored in the volatile storage unit 12 regardless of the presence or absence of passengers in the elevator car.
  • the selected video recording information is selected as video recording information, and the selected video recording information is recorded in the nonvolatile storage unit 17.
  • control unit 16 is configured to select a video stream as video recording information when it is determined from the elevator information that such a situation has occurred.
  • the control unit 16 determines that the elevator is running and the door is open, the control unit 16 saves the volatile storage unit 12 regardless of the presence or absence of passengers in the elevator car.
  • the recorded video stream is recorded in the nonvolatile storage unit 17 as video recording information.
  • the control unit 16 is configured to select a video stream as video recording information when it is determined from the elevator information that such a situation has occurred.
  • control unit 16 selects a video stream having a high video resolution as the video recording information.
  • the control unit 16 determines that the elevator is stopped, the door is closed, and there are passengers in the elevator car, the video stream stored in the volatile storage unit 12 is displayed as a video. This is selected as recording information, and the selected video recording information is recorded in the nonvolatile storage unit 17.
  • the control unit 16 is configured to select a video stream as video recording information when it is determined from the elevator information that such a situation has occurred.
  • the control unit 16 displays a video stream with a high video resolution. Select as recording information.
  • the control unit 16 determines that the elevator is running, the door is closed, and there are passengers in the elevator car, the reduced image stored in the volatile storage unit 12.
  • the stream is selected as video recording information, and the selected video recording information is recorded in the nonvolatile storage unit 17.
  • the control unit 16 is configured to select a reduced video stream as video recording information when it is determined from the elevator information that such a situation has occurred.
  • the control unit 16 determines from the elevator information that the elevator is running, the elevator door is closed, and there are passengers in the elevator car, the reduced video image has low resolution.
  • a stream is selected as video recording information.
  • the control unit 16 determines that the elevator is stopped, the door is closed, and there are no passengers in the elevator car, the video stream stored in the volatile storage unit 12 and the reduction are reduced.
  • One of the video streams is selected as video recording information, and the operation of recording the selected video recording information in the nonvolatile storage unit 17 is stopped.
  • control unit 16 is configured to stop the operation of recording the video recording information in the nonvolatile storage unit 17 when it is determined from the elevator information that such a situation has occurred.
  • the control unit 16 determines that the elevator is running, the door is closed, and there are no passengers in the elevator car, the video stream stored in the volatile storage unit 12 And the reduced video stream are selected as video recording information, and the operation of recording the selected video recording information in the nonvolatile storage unit 17 is stopped.
  • control unit 16 is configured to stop the operation of recording the video recording information in the nonvolatile storage unit 17 when it is determined from the elevator information that such a situation has occurred.
  • control unit 16 records the video recording information in the nonvolatile storage unit when it is determined from the elevator information that the elevator door is closed and there are no passengers in the elevator car. To stop.
  • control unit 16 receives the elevator information indicating the status of the elevator from the elevator control device 4, and according to the elevator information, either the video stream or the reduced video stream stored in the volatile storage unit 12. Is selected as video recording information, and the selected video recording information is recorded in the nonvolatile storage unit 17.
  • FIG. 3 is a time chart showing an operation example of the control unit 16 of FIG.
  • FIG. 3 the time at which the elevator information transmitted from the elevator control device 4 is received, the changes over time of the driving information, door opening / closing information, and boarding information included in the elevator information, and the control unit 16 performs the video stream and the reduced video.
  • a time-dependent change in the operation of recording any one of the streams as video recording information in the nonvolatile storage unit 17 is illustrated.
  • the driving information is information indicating that the elevator is stopped in the period from 12:00 to 12:00:17 and in the period after 12:00:30.
  • the driving information is information indicating that the elevator is traveling during the period from 12:00:17 to 12:00:30.
  • the door opening / closing information indicates that the elevator door is closed during the period from 12:00 to 12:00:05, the period from 12:00:15 to 12:00:32, and the period after 12:00:45. This is information indicating this.
  • the door opening / closing information is information indicating that the door of the elevator is open in the period from 12:00:05 to 12:00:15 and in the period from 12:00:32 to 12:00:45.
  • the boarding information is information indicating that there is no passenger in the elevator car during the period from 12:00 to 12:00:08 and after 12:00:40.
  • the boarding information is information indicating that passengers are present in the elevator car during the period from 12:00:08 to 12:00:40.
  • the control unit 16 determines that the elevator is stopped and the door is closed based on the elevator information received from the elevator control device 4. Judge that there are no passengers in the car. In this case, the control unit 16 stops the operation of recording the video recording information in the nonvolatile storage unit 17.
  • the elevator control device 4 opens the door at 12:00:05.
  • the control unit 16 determines from the elevator information received from the elevator control device 4 that the elevator is stopped, the door is open, and there are no passengers in the elevator car. to decide. In this case, the control unit 16 selects a video stream stored in the volatile storage unit 12 as video recording information.
  • the control unit 16 determines from the elevator information received from the elevator control device 4 that the elevator is stopped, the door is open, and there are passengers in the elevator car. to decide. In this case, the control unit 16 selects a video stream stored in the volatile storage unit 12 as video recording information.
  • the elevator control device 4 closes the door at 12:00:15.
  • the control unit 16 determines from the elevator information received from the elevator controller 4 that the elevator is stopped, the door is closed, and there are passengers in the elevator car. to decide. In this case, the control unit 16 selects a video stream stored in the volatile storage unit 12 as video recording information.
  • the elevator control device 4 starts running the elevator at 12:00:17.
  • the control unit 16 determines from the elevator information received from the elevator control device 4 that the elevator is running, the door is closed, and the passenger is in the elevator car. Judge that In this case, the control unit 16 selects a reduced video stream stored in the volatile storage unit 12 as video recording information.
  • the control unit 16 switches the video recording information from the video stream to the reduced video stream and records it in the nonvolatile storage unit 17.
  • the control unit 16 causes time information of the video stream before switching and the reduced video stream after switching to be continuous. Therefore, since the time information of the video recording information before and after the switching is continuous, the video recording information can be reproduced continuously.
  • the elevator controller 4 stops the elevator.
  • the control unit 16 determines from the elevator information received from the elevator control device 4 that the elevator is stopped, the door is closed, and there are passengers in the elevator car. to decide. In this case, the control unit 16 selects a video stream stored in the volatile storage unit 12 as video recording information.
  • the control unit 16 switches the video recording information from the reduced video stream to the video stream and records it in the nonvolatile storage unit 17.
  • the control unit 16 makes the time information of the reduced video stream before switching and the video stream after switching continuous. Therefore, since the time information of the video recording information before and after the switching is continuous, the video recording information can be reproduced continuously.
  • the elevator control device 4 opens the door at 12:00:32.
  • the control unit 16 determines from the elevator information received from the elevator control device 4 that the elevator is stopped, the door is open, and there are passengers in the elevator car. to decide. In this case, the control unit 16 selects a video stream stored in the volatile storage unit 12 as video recording information.
  • the control unit 16 determines from the elevator information received from the elevator control device 4 that the elevator is stopped, the door is open, and there are no passengers in the elevator car. to decide. In this case, the control unit 16 selects a video stream stored in the volatile storage unit 12 as video recording information.
  • the elevator control device 4 closes the door at 12:00:45. After 12:00:45, there are no passengers in the elevator car and the door is closed. Therefore, the control unit 16 operates as follows in order to suppress unnecessary recording of the video recording information in the nonvolatile storage unit 17.
  • control unit 16 selects a video stream stored in the volatile storage unit 12 as video recording information. After 12:00:46, the control unit 16 stops the operation of recording the video recording information in the nonvolatile storage unit 17.
  • one of the video stream and the reduced video stream stored in the volatile storage unit is selected as the video recording information, and the selected video is selected.
  • the recording information is configured to be recorded in the nonvolatile storage unit.
  • a video stream having a high video resolution can be recorded in the nonvolatile storage unit.
  • a reduced video stream with a low video resolution is recorded in the nonvolatile storage unit.
  • the reduced video stream is generated by taking over time information from the original video stream. Therefore, when the video recording information is recorded by switching from the video stream to the reduced video stream, and when the video recording information is recorded by switching from the reduced video stream to the video stream, the time information of the video recording information before and after the switching is continuous. ing. As a result, since the time information of the video record information is continuous, the video record information can be reproduced continuously.
  • FIG. 1 In the second embodiment of the present invention, a monitoring apparatus 1 configured to generate reduced video data by a method different from the first embodiment with respect to the configuration of the first embodiment will be described. In the second embodiment, description of points that are the same as those of the first embodiment will be omitted, and points different from the first embodiment will be mainly described.
  • the image processing unit 14 reduces the resolution of the video data stored in the volatile storage unit 12 and generates the video data with the reduced resolution as the reduced video data. It is configured.
  • the image processing unit 14 is configured as follows. That is, the image processing unit 14 detects a different portion from the video data by comparing the reference video data prepared in advance with the video data stored in the volatile storage unit 12. In addition, the image processing unit 14 extracts a region including the detected different part as an extraction region from the video data. Further, the image processing unit 14 generates video data obtained by cutting out only the extraction region from the entire region of the video data stored in the volatile storage unit 12 as reduced video data.
  • FIG. 4 is a block diagram showing the configuration of the elevator monitoring system according to Embodiment 2 of the present invention.
  • the monitoring device 1 includes an input control unit 11, a volatile storage unit 12, a decoding unit 13, an image processing unit 14, an encoding unit 15, a control unit 16, a non-volatile storage unit 17, a non-volatile temporary storage unit 18, and A copy control unit 19 is provided.
  • the image processing unit 14 includes a reference video storage unit 142, a motion detection unit 143, and an extraction unit 144.
  • the reference video storage unit 142 stores reference video data prepared in advance.
  • the reference video data prepared in advance is data to be compared for detecting a different portion from the video data stored in the volatile storage unit 12.
  • FIG. 5 is a diagram illustrating an example of reference video data stored in the reference video storage unit 142 of FIG.
  • an image captured by the monitoring camera 3 in the elevator car when the elevator door is closed and no person is in the vehicle is stored in the reference image storage unit 142 in advance as reference image data. ing.
  • the motion detection unit 143 compares the video data stored in the volatile storage unit 12 with the reference video data stored in the reference video storage unit 142 to detect a difference from the video data.
  • FIG. 6 is a diagram illustrating an example of video data stored in the volatile storage unit 12 of FIG. As shown in FIG. 6, an image captured by the monitoring camera 3 when a person is in the elevator car is stored in the volatile storage unit 12 as image data.
  • the motion detection unit 143 detects two passengers from the video data as different portions.
  • the extraction unit 144 extracts, from the video data stored in the volatile storage unit 12, an area including a different portion detected by the motion detection unit 143 as an extraction area. Subsequently, the extraction unit 144 generates, as reduced video data, video data (hereinafter referred to as extracted video data) obtained by cutting out only the extraction region from the entire region of the video data stored in the volatile storage unit 12. The reduced video data is stored in the volatile storage unit 12.
  • FIG. 7 is a diagram illustrating an extraction region extracted by the extraction unit 144 of FIG.
  • the extraction area extracted by the extraction unit 144 is illustrated as an area surrounded by a broken line (hereinafter referred to as a broken line area).
  • the extraction unit 144 extracts a region including two passengers corresponding to the difference detected by the motion detection unit 143, that is, a dashed line region as an extraction region. Specifically, the extraction unit 144 obtains upper, lower, left, and right coordinate values of the region including the difference detected by the motion detection unit 143, and extracts a region obtained by adding a predetermined constant to the coordinate value. Extract as a region. Further, the extraction unit 144 extracts the extraction region so as to be the same as the aspect ratio of the original video data stored in the volatile storage unit 12.
  • the encoding unit 15 converts the reduced video data stored in the volatile storage unit 12 by the extraction unit 144 to H.264.
  • a reduced video stream is generated by encoding with a moving picture compression standard such as H.264, and the reduced video stream is stored in the volatile storage unit 12.
  • the extraction area is extracted from the video data, and the video Extracted video data obtained by cutting out only the extraction area from the entire data area is generated as reduced video data.
  • Embodiment 3 In the third embodiment of the present invention, in contrast to the configuration of the second embodiment, when a different portion is detected from the video data in an area other than the extraction area, the video stream is preferentially nonvolatile as video recording information
  • the monitoring device 1 configured to record in the storage unit 17 will be described.
  • description of points that are the same as in the first and second embodiments will be omitted, and the description will focus on points that are different from the first and second embodiments.
  • the motion detection unit 143 detects a different portion from the video data stored in the volatile storage unit 12 other than the extraction region extracted by the extraction unit 144.
  • the control unit 16 performs the same operation as in the first embodiment. That is, the control unit 16 selects either the video stream or the reduced video stream stored in the volatile storage unit 12 as the video recording information according to the elevator information received from the elevator control device 4.
  • the control unit 16 when the motion detection unit 143 detects a different part from the video data stored in the volatile storage unit 12 other than the extraction region extracted by the extraction unit 144, The control unit 16 performs the following operation. That is, the control unit 16 preferentially selects the video stream stored in the volatile storage unit 12 as video recording information regardless of the elevator information received from the elevator control device 4.
  • the motion detection unit 143 is outside the extraction region. If a different part is detected, a video stream is selected as video recording information instead of a reduced video stream.
  • control unit 16 saves the video stream several seconds before the time when the different part is detected in the nonvolatile storage unit 17. It may be configured.
  • the elevator information is included in the configuration of the second embodiment. Regardless, the video stream stored in the volatile storage unit is preferentially selected as video recording information.
  • Embodiment 4 FIG.
  • a monitoring apparatus 1 configured to generate reduced video data including a series of zoom-up video data indicating a zoom-in change process will be described.
  • description of points that are the same as in the first to third embodiments will be omitted, and differences from the first to third embodiments will be mainly described.
  • the extraction unit 144 is configured to extract the extraction area from the video data and generate the extracted video data obtained by cutting out only the extraction area from the entire area of the video data as reduced video data. Has been.
  • the extracting unit 144 changes the zoom-up when the extracted area is gradually zoomed up with respect to the entire area of the video data with respect to the reduced video data.
  • the apparatus is configured to generate reduced video data including a series of zoom-up video data indicating the process.
  • FIG. 8 is a diagram illustrating an example of a series of zoom-up video data included in the reduced video data generated by the extraction unit 144 according to Embodiment 4 of the present invention.
  • the broken line area shown in FIG. 8 is shown for explaining the area to be enlarged, and the broken line area is not displayed in the actual data.
  • the extraction unit 144 performs zoom-up changes when the extraction region, that is, the broken-line region is gradually zoomed up with respect to the entire region of the video data stored in the volatile storage unit 12.
  • Reduced video data including a series of zoom-up video data indicating the process is generated.
  • a series of zoom-up video data is obtained by gradually zooming up the extraction area so that the resolution is the same for all areas of the video data (a) and the video data (a), for example.
  • the video data (b) and (c) whose area has been enlarged and the video data (d) obtained by cutting out only the extracted area from the entire area of the video data (a) are configured.
  • the extraction unit 144 performs a series of zoom-up operations that indicate the zoom-up change process when the extraction region is gradually zoomed up with respect to the entire area of the video data stored in the volatile storage unit 12. Reduced video data including video data is generated.
  • the extraction unit 144 further includes a series of zoom-back video data indicating a process of zoom back change when the extraction region is gradually zoomed back with respect to the entire region of the extracted video data.
  • the reduced video data included may be generated.
  • a series of zoom-back video data is obtained by gradually zooming back the extraction area so that the resolution is the same for all areas of the video data (d) and the video data (d).
  • the reduced video data (c) and (b) and the video data (a) are included.
  • FIG. 9 is a time chart showing an operation example of the control unit 16 according to Embodiment 4 of the present invention.
  • the changes over time of the driving information, door opening / closing information, and boarding information are the same as in FIG.
  • the control unit 16 determines that the elevator is running, the door is closed, and there are passengers in the elevator car from the elevator information received from the elevator control device 4. Judge. In this case, the control unit 16 records the reduced video stream in the nonvolatile storage unit 17 so as to include a series of zoom-up video data.
  • the control unit 16 determines from the elevator information received from the elevator control device 4 that the elevator is stopped, the door is closed, and there are passengers in the elevator car.
  • the reduced video stream is first recorded in the nonvolatile storage unit 17 so as to include a series of zoom-back video data, and then the video stream is recorded in the nonvolatile storage unit 17.
  • control unit 16 preferentially stores the video stream in a non-volatile manner. It may be configured to record in the sex storage unit 17.
  • the fourth embodiment when the extraction area is gradually zoomed up with respect to the entire area of the video data stored in the volatile storage unit, compared to the configuration of the second embodiment.
  • the zoomed-in video data including a series of zoomed-up video data showing the zoom-up change process is generated.
  • Embodiments 1 to 4 have been individually described, the configuration examples disclosed in Embodiments 1 to 4 can be arbitrarily combined.
  • Elevator monitoring device 1 Elevator monitoring device, 2 network, 3 monitoring camera, 4 elevator control device, 11 input control unit, 12 volatile storage unit, 13 decoding unit, 14 image processing unit, 15 encoding unit, 16 control unit, 17 non-volatile storage Unit, 18 nonvolatile temporary storage unit, 19 copy control unit, 141 resolution reduction unit, 142 reference video storage unit, 143 motion detection unit, 144 extraction unit.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

Dispositif de surveillance d'ascenseur relié en communication à : une caméra de surveillance qui est installée dans une cabine d'ascenseur, et qui transmet un flux vidéo ; et un dispositif de commande d'ascenseur qui commande le fonctionnement de l'ascenseur, et qui transmet des informations d'ascenseur indiquant l'état de l'ascenseur. Le dispositif de surveillance d'ascenseur sélectionne, en tant qu'informations d'enregistrement vidéo, conformément à des informations d'ascenseur reçues en provenance du dispositif de commande d'ascenseur, un flux vidéo ou un flux vidéo réduit stocké dans une unité de stockage volatil, et enregistre les informations d'enregistrement vidéo sélectionnées dans une unité de stockage non volatil.
PCT/JP2016/086394 2016-12-07 2016-12-07 Dispositif de surveillance d'ascenseur Ceased WO2018105059A1 (fr)

Priority Applications (3)

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JP2018555382A JP6604616B2 (ja) 2016-12-07 2016-12-07 エレベータ用監視装置
PCT/JP2016/086394 WO2018105059A1 (fr) 2016-12-07 2016-12-07 Dispositif de surveillance d'ascenseur
CN201680090773.0A CN110035967B (zh) 2016-12-07 2016-12-07 电梯用监视装置

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PCT/JP2016/086394 WO2018105059A1 (fr) 2016-12-07 2016-12-07 Dispositif de surveillance d'ascenseur

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WO2020095424A1 (fr) * 2018-11-09 2020-05-14 三菱電機株式会社 Dispositif de sortie vidéo d'ascenseur et appareil du type ascenseur
WO2021199403A1 (fr) * 2020-04-02 2021-10-07 三菱電機株式会社 Dispositif de traitement de données d'image d'ascenseur et procédé de traitement de données d'image d'ascenseur

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CN117185067A (zh) * 2023-08-21 2023-12-08 东南电梯股份有限公司 一种核电站电梯影像处理装置

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WO2021199403A1 (fr) * 2020-04-02 2021-10-07 三菱電機株式会社 Dispositif de traitement de données d'image d'ascenseur et procédé de traitement de données d'image d'ascenseur
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