JP5636205B2 - Image recording control apparatus and monitoring system - Google Patents

Description

  The present invention relates to an image recording control apparatus and a monitoring system, and more particularly, to an image recording control apparatus and a monitoring system for acquiring a video image that is optimal for checking a situation when an abnormality occurs in accordance with an abnormality that has occurred.

  Conventionally, an imaging device such as a security camera installed in a security target facility (or area) has always used a recording method, but the amount of data to be recorded is inevitably large, so that data is recorded. The capacity of the hard disk and memory to be used will also increase.

  Therefore, in recent years, when a recording device such as a security camera or a DVR (Digital Video Recorder) is combined, for example, when an abnormality such as interference or intrusion detection in a security camera or the like, a video loss with respect to a photographed image occurs, An image monitoring and recording system capable of recording images before and after the occurrence of an abnormality is disclosed (for example, see Patent Document 1).

  In the technique disclosed in Patent Document 1 described above, a plurality of different specific movement images corresponding to the degree of danger of a person are registered as template images in an image memory, and monitoring is extracted for each captured image. The person in the area is compared with the template image described above, and when it is determined that there is a specific movement, the degree of danger is recognized according to the movement of the person, and the recognition result (degree of danger) is obtained. The recording time is specified accordingly.

JP 2007-124526 A

  However, in the conventional abnormality determination, since the time until it is determined that the specific movement is abnormal differs depending on the type of abnormality, an important video may not be obtained accurately with the conventional recording method. In addition, when using the technique shown in Patent Document 1 described above, it is necessary to generate a template image in advance and register it in the memory, and to compare all captured images. Therefore, since the abnormality must be determined, the processing load on the system increases.

  Also, depending on the type of abnormality, the video before the occurrence of the abnormality is important or the video after the occurrence of the abnormality is important, but since the video before and after the occurrence of the abnormality is acquired for a predetermined period, There was also a video that was meaningless.

  Normally, in security equipment such as houses, hospitals, shops (convenience stores, department stores, etc.), factories, corporate buildings, etc., multiple various detection sensors are installed in the security equipment, but intruders are detected. In this case, since the intrusion route can be estimated by the position and type of the detection sensor, the images (images) taken by multiple cameras are selected from the detection contents of the various sensors, and the intrusion route It is desirable to control so as to record an optimal video for checking the situation.

  The present invention has been made in view of the above-described problems, and provides an image recording control apparatus and a monitoring system for acquiring a video image that is optimal for confirming a situation when an abnormality has occurred according to the abnormality that has occurred. For the purpose.

  In order to solve the above problems, the present invention employs means for solving the problems having the following characteristics.

In the present invention, in an image recording control device for extracting a predetermined image from a plurality of imaging devices based on detection signals obtained from a plurality of sensors installed in the target facility, the sensor receiving the detection signal Based on the identification signal, the position of the sensor accumulated in advance is acquired, and based on the acquired position of the sensor and the position of the plurality of imaging devices, at least one imaging device among the plurality of imaging devices Of the image picked up by the image pick-up device selecting means and the image pick-up device selected by the image pick-up device selecting means, before and at the time of detection by the sensor, from the image or image after the detection according to different extraction conditions and obtaining an image extracting means for extracting, have a transmission means for transmitting the video or image obtained by the obtaining image extracting unit, the acquired image extraction means, said detection signal When the received sensor is a window opening / closing sensor that detects the opening / closing of a window in the target facility, images before detection, at the time of detection, and after detection are extracted, and the sensor that has received the detection signal is the target facility. If the sensor is a door opening / closing sensor that detects the opening / closing of the door, the image after detection is extracted, and if the sensor that has received the detection signal is a space sensor in the target facility, the image after detection is detected. If the sensor that received the detection signal is an emergency call device in the target facility, the number of images before the emergency button of the emergency call device is pressed is extracted. It is characterized by extracting more than the number of images after being pressed . Thereby, according to the abnormality which generate | occur | produced, the optimal image | video for the situation confirmation at the time of abnormality occurrence can be acquired.

In the present invention, when the detection device receives the detection signals from the plurality of sensors, the image pickup device selection unit selects one or a plurality of image pickup devices based on the time or order of receiving the detection signals. Features.

In the present invention, the acquired image extracting unit, when receiving the detection signal from said plurality of sensors, and wherein extracting the image captured from the imaging device corresponding to the combination of the plurality of sensors To do.

  In the present invention, the acquired image extraction unit changes the image size or resolution according to a priority set in advance for each of the plurality of imaging devices, and transmits the image from the transmission unit.

  Further, according to the present invention, in the monitoring system comprising the image recording control device according to any one of claims 1 to 4 and a monitoring center that monitors the inside of the target equipment in which the image recording control device is installed, the image recording The control device transmits an alarm signal to the monitoring center and transmits the video or image obtained by the acquired image extracting means when the video or image is compressed in a compression format preset by the sensor and the imaging device. Compressed and transmitted.

  In addition, what applied the component, expression, or arbitrary combination of the component of this invention to a method, an apparatus, a system, a computer program, a recording medium, a data structure, etc. is also effective as an aspect of this invention.

  According to the present invention, it is possible to acquire an optimal video for checking the situation when an abnormality occurs, according to the abnormality that has occurred.

It is a figure which shows an example of schematic structure of the monitoring system in this embodiment. It is a figure which shows an example of a function structural example of an image recording control apparatus. It is a figure which shows the example of selection of the imaging device in an imaging device selection means. It is a figure for demonstrating the example of an acquired image used as a reference | standard. It is a figure which shows the example (the 1) which extracts a predetermined image from a picked-up image. It is a figure which shows the example (the 2) which extracts a predetermined image from a picked-up image. It is a figure which shows the example (the 3) which extracts a predetermined image from a picked-up image. It is a figure which shows an example of the screen displayed on a monitoring center.

<About the present invention>
The present invention makes it possible to obtain an image that is optimal for checking the situation when an abnormality occurs, in accordance with the abnormality that has occurred. Specifically, in the present invention, the recording time before and after the occurrence of an abnormality can be set independently according to the content (abnormality type) detected by a detecting means such as a sensor. As a result, even when the capacity of a recording device such as an HDD (Hard Disk Drive) or a memory is small, only important video can be selectively acquired, and a signal at the time of occurrence of an abnormality can be associated with the recorded video.

  Hereinafter, embodiments in which an image recording control device and a monitoring system according to the present invention are suitably implemented will be described with reference to the drawings.

<Example of schematic configuration of monitoring system>
FIG. 1 is a diagram illustrating an example of a schematic configuration of a monitoring system according to the present embodiment. A monitoring system 10 shown in FIG. 1 is configured to include an imaging device 11, a video recording device 12, an image recording control device 13, each sensor group 14, a monitoring center 15, and the like. Further, the image recording control device 13 and the monitoring center 15 are connected through a communication network 16 typified by the Internet or the like so that data and control signals can be transmitted and received. In the example of FIG. 1, it is assumed that the imaging device 11, the video recording device 12, the image recording control device 13, and each sensor group 14 are installed in a security target facility.

  The imaging device 11 includes one or a plurality of cameras installed in a predetermined security target facility such as a residence, a hospital, a store (convenience store, department store, etc.), a factory, a corporate building, etc. 11-1 to 11-n). For example, the imaging device 11 mainly shows a fixed type security camera or the like, and always takes images of a predetermined area such as a door or a window periphery.

  The video recording device 12 is configured to include a primary storage unit 21 and a secondary storage unit 22. The primary storage means 21 stores all the videos taken by the imaging device 11 together with the taken time information. Further, the secondary storage means 22 extracts images (including videos) instructed by the image recording control means 13 from all the videos taken by the imaging device 11, and stores them together with the taken time information. . In the present embodiment, the recording process by the secondary accumulating unit 22 is mainly performed when the abnormality is detected by each sensor group 14 among the image recording devices 12-1 to 12-n. Only the video recording device 12 that has received the instruction performs the above-described processing.

  In other words, this image is an image to be transmitted to the monitoring center 15 described later, and by transmitting only an image that is optimal for checking the situation at the time of occurrence of an abnormality, the image is transmitted while preventing unnecessary image transmission. Efficiency can be improved. Therefore, the secondary storage means 22 outputs the stored data to the image recording control device 13 based on a predetermined data amount or cycle, or preset trigger information such as a request signal from the image recording control device 13, After being transmitted from the image recording control device 13 to the monitoring center 15, it is deleted.

  In the monitoring system 10 shown in FIG. 1, the video recording device 12 (primary storage means 21, secondary storage means 22) is provided for each of the imaging devices 11-1 to 11-n (in the example of FIG. 1, Video recording devices 12-1 to 12-n (primary storage means 21-1 to 21-n, secondary storage means 22-1 to 22-n)). However, the present invention is not limited to this. For example, the video recording devices 12-1 to 12-n may be incorporated in the imaging devices 11-1 to 11-n, respectively, and a plurality of imaging devices 11 may be included. The structure which provides the one video recording apparatus 12 with respect to -1 to 11-n may be sufficient.

  Based on the abnormality detection signal from each sensor group 14, the image recording control device 13 displays video from among the plurality of imaging devices 11-1 to 11-n and the corresponding video recording devices 12-1 to 12-n. The imaging device 11 and the video recording device 12 to be acquired are selected, and further, the video that has been captured by the selected imaging device 11 and stored in the primary storage unit 21 of the video recording device 12 is set in advance. A predetermined image (or video) is extracted according to the determined conditions. The predetermined image or video includes, for example, a video for a certain period, an image every predetermined time interval, an image whose image size or resolution is changed, etc., but the present invention is limited to the above contents. It is not something. Specific examples of a method for selecting the imaging device 11 in the image recording control unit 13 based on an abnormality detection signal from each sensor group 14 and a method for extracting a predetermined video (or image) will be described later.

  In addition, the image recording control device 13 outputs an alarm signal indicating that an abnormality or the like has been detected by at least one of the sensor groups 14 to the monitoring center 15 via the communication network 16. In addition, the image recording control device 13 transmits the above-described alarm signal and compresses the video or image extracted from the video recording devices 12-1 to 12-n according to a predetermined extraction condition by a predetermined compression format, The data is output to the monitoring center 15 via the communication network 16.

  Each sensor group 14 is a sensor group provided in the same facility as the security target facility in which the above-described imaging devices 11-1 to 11-n are installed. Specifically, each sensor group 14 includes a window open / close sensor, a door open / close sensor, a space sensor (normal type (omnidirectional type)), a space sensor (spot type), and a space sensor (long distance sensor). Emergency call device. In the present embodiment, each sensor group 14 may be installed one by one corresponding to the imaging devices 11-1 to 11-n, or one sensor may correspond to a plurality of imaging devices 11. In addition, a plurality of sensors may correspond to one imaging device. When at least one of the sensor groups 14 detects an abnormality or the like, the sensor outputs a detection signal to the image recording control device 13 together with sensor identification information given to each sensor group 14.

  The monitoring center 15 acquires a video signal, alarm information, and the like obtained from the image recording control device 13 via the communication network 16, and dispatches guards to the security target facility or performs measures corresponding to an emergency state. .

  Next, a specific functional configuration example of the image recording control apparatus 13 in the present embodiment will be described with reference to the drawings.

<Image Recording Control Device 13: Functional Configuration Example>
FIG. 2 is a diagram illustrating an example of a functional configuration example of the image recording control apparatus. 2 includes an input unit 31, an output unit 32, a storage unit 33, a transmission / reception unit 34, an imaging device selection unit 35, an acquired image extraction unit 36, and a control unit 37. It is comprised so that it may have.

  The input unit 31 receives various instructions such as an imaging device selection instruction, an acquired image extraction instruction, and a transmission / reception instruction from a user or the like. Note that the input unit 31 includes, for example, a keyboard, a pointing device such as a mouse, a voice input device such as a microphone, and the like.

  The output means 32 is executed by each component such as the instruction content input by the input means 31, control data generated based on each instruction content, the transmission / reception means 34, the imaging device selection means 35, the acquired image extraction means 36, and the like. The contents of various kinds of information obtained by the progress or result are displayed and the sound is output. Note that the output unit 32 has a screen display function such as a display, a sound output function such as a speaker, and the like. Further, the output unit 32 has a print / output function for outputting the execution progress and results to a printer or the like, or generating and outputting a file.

  The storage unit 33 can store various information for realizing the above-described embodiment, and reading and writing are performed as necessary. Specifically, the storage unit 33 includes identification information of the imaging device 11, type information (high sensitivity camera, high definition camera, infrared camera, etc.), address information, position information, identification information of the video recording device 12, and each sensor. Each group 14 identification information, type information (window open / close sensor, door open / close sensor, space sensor, etc.), address information and position information, contents of detection signals from each sensor group 14, connected to the monitoring center 15 Address information, information related to the imaging device selected by the imaging device selection means 35, contents of data transmitted to the monitoring center 15, and various data such as video or images extracted by the acquired image extraction means 36 are stored.

  The storage unit 33 also stores information such as transmission / reception information in the transmission / reception unit 34, information controlled by the control unit 37, error information when an error occurs, log information, and a program for realizing the present invention.

  The transmission / reception means 34 receives a predetermined detection signal from each sensor group 14 via a communication network such as a LAN (Local Area Network) or the Internet, and records a monitoring video from the imaging device 11. After extracting a predetermined image or video from 12, the extracted data or the like is acquired. Note that the transmission / reception means 34 may receive the monitoring video directly from the imaging device 11.

  Here, in the present embodiment, the transmission / reception unit 34, when acquiring an image or video signal, generates an abnormality based on the position and type of the sensor that detected the abnormal signal obtained by each sensor group 14, the content of the abnormal signal, and the like. Receive the best image (including video) for checking the situation at the time. In other words, in the present embodiment, the selection conditions of the imaging device obtained from the imaging device selection means 35 and the acquired image extraction means 36, and the extraction conditions such as how to extract images and videos acquired from all captured videos are extracted. Based on various information such as the above, the video recording device 12 temporarily stores the extracted image or the like by the secondary storage means 22 described above, and receives the stored image or the like.

  Further, the transmission / reception means 34 outputs the obtained video and image to the monitoring center 15 via the communication network 16. At this time, the transmission / reception means 34 can output an alarm signal or the like indicating an abnormality corresponding to the type of each sensor group 14 to the monitoring center 15 under the control of the control means 37.

  Moreover, the transmission / reception means 34 can also be used as a communication interface for transmitting to other terminals included in the security target facility of the monitoring system 10 and receiving various data from other terminals.

  The imaging device selection unit 35 acquires the position and type of the sensor, the content of the abnormal signal, and the like from the storage unit 33 based on the detection signal obtained from at least one of the sensor groups 14 and the sensor identification information. The corresponding imaging device is selected from the positional information and the positional information of the imaging device 11, and the identification information and the address information are acquired. Note that the imaging device selection unit 35 may set and store in the storage unit 33 and the like association information relating to which image pickup device 11 the image or the like is to be acquired when which sensor detects. . In that case, when at least one of the sensor groups 14 detects an abnormality, the imaging device selection unit 35 can instantaneously select the target imaging device 11 from the association information with reference to the storage unit 33.

  Further, the imaging device selection unit 35 acquires the content of data to be transmitted to the monitoring center 15 set in advance from the storage unit 33, and selects the imaging device 11 corresponding to the sensor that has received the detection signal based on the acquired setting content. You can also choose. Thereby, it is possible to acquire an image designated by the monitoring center 15 (for example, only an image from an infrared camera or only an image from a high-definition camera having a resolution equal to or higher than a predetermined value).

  The acquired image extraction unit 36 sets the contents such as what kind of video (or image) is extracted from which imaging device for the imaging device 11 selected by the imaging device selection unit 35 described above, and the acquired acquisition set. Extract the target image. That is, the acquired image extraction unit 36 extracts video or images before and after detection by the sensor that has detected an abnormality, among the images captured by the imaging device 11 selected by the imaging device selection unit 35, according to different extraction conditions. Extract by

  The acquired image extraction unit 36 generates a control signal for causing the secondary video storage unit 22 to store a predetermined video when the video or image corresponding to the condition is extracted. The control signal is transmitted by the transmission / reception means 34.

  The acquired image extracting means 36 performs editing processing such as image quality conversion processing and image compression processing on the acquired extracted image in accordance with a preset resolution and compression format at the time of transmission, and the edited image ( (Or video) is transmitted to the monitoring center 15 by the transmission means 34. The specific extraction contents in the acquired image extraction means 36 will be described later.

  The control unit 37 controls the entire functional configuration in the image recording control device 13. Specifically, the control unit 37 performs various controls such as selection and extraction control of a captured image and transmission / reception control based on input information from the user input by the input unit 31.

<Selection Example of Imaging Device 11 in Imaging Device Selection Unit 35>
Next, a selection example of the imaging devices 11-1 to 11-n in the imaging device selection unit 35 in the present embodiment will be described with reference to the drawings. FIG. 3 is a diagram illustrating an example of selecting an imaging device in the imaging device selection unit. Note that the information shown in FIG. 3 is stored in the storage unit 33 and is read as appropriate. It should be noted that these pieces of information can be subjected to update processing such as addition, deletion, and change by the imaging device selection means 35 and the like.

  In the present embodiment, the imaging device (camera) 11 from which the video signal is acquired is selected according to the position (location) of each sensor group 14 that has detected a detection signal such as abnormality, and the sensor type and content. Specifically, as shown in FIG. 3, a sensor number as sensor identification information for identifying each sensor group 14 and a camera number as camera identification information for identifying the imaging devices 11-1 to 11-n Items such as monitoring center transmission conditions in which information to be transmitted to the monitoring center 15 is set are stored in the storage means 33.

  When the transmission / reception means 34 obtains a detection signal (abnormal signal or the like) from a certain sensor, the imaging device selection means 35 obtains the information shown in FIG. 3 from the storage means 33 based on the obtained content, The camera number associated with the sensor number and the transmission condition to the monitoring center 15 are acquired by referring to the sensor number of the sensor that has transmitted the detection signal.

  For example, in the example of FIG. 3, when an abnormal signal from the sensor number “sensor 1” is detected, an image from the imaging device 11 whose camera number is “camera 1” is acquired and transmission condition 1 is satisfied. In accordance with the set conditions, a corresponding image is acquired, subjected to predetermined editing or the like as necessary, and then output to the monitoring center 15. In the present invention, the present invention is not limited to this. For example, an image from a plurality of imaging devices may be acquired in response to a detection signal from the sensor 1. May be changed. Accordingly, it is possible to acquire a video at an appropriate position and to acquire a tracked image.

<Example of Acquired Image in Acquired Image Extraction Unit 37>
Next, an example of an acquired image in the acquired image extraction unit 37 in the present embodiment will be described with reference to the drawings. FIG. 4 is a diagram for explaining an example of an acquired image that serves as a reference. Note that the information shown in FIG. 4 is stored in the storage means 33 described above and is read out as appropriate.

  The acquired image extraction unit 36 is information for determining how to extract a corresponding image or video based on a detection signal such as abnormality acquired from each sensor group 14. By referring to this information, only appropriate images and videos can be acquired, and the abnormal state can be appropriately notified to the monitoring center 15.

  The contents set for extracting the acquisition target image include items such as “sensor type” and “extraction condition” in the example of FIG.

  Here, an example of an acquired image in the acquired image extraction unit 37 will be specifically described with reference to FIG. For example, when a signal from an open / close sensor (window) is received as a detection signal from each sensor group 14, images before and after opening the window are necessary. Extract images. Therefore, specifically, an image from one second before the detected time to the time of detection, an image one second after the detected time, and the like are extracted.

  In addition, when a signal from the open / close sensor (door) is received, an image that can be used to confirm an intruder entering the door by opening the door is necessary, and therefore image transmission after sensor detection is extracted. This is because the intruder is outside the room before the door is opened, and therefore it is assumed that the intruder or the like is not captured by the camera in the video before the door is opened. Therefore, specifically, an image or the like one second after the detected time is extracted. Thereby, the image when the door is opened and the face can be seen can be acquired.

  In places where the intruder's movement route is assumed to go out of the room, images etc. from 1 second before detection to the time of detection can be confirmed so that the intruder can exit by opening the door. Extract it.

  In addition, when a spatial sensor (normal type (omnidirectional)) signal is received, images before and after passing through the sensor range are required. To do. Therefore, specifically, images from 0.5 seconds before the detection to the detection and images after 1, 2, and 3 seconds are extracted.

  In addition, when a signal from a spatial sensor (spot type) is received, for example, when monitoring the vicinity of the entrance / exit of the spot, an image at the time of passing through the sensor range is required, so images before and after sensor detection are extracted. To do. Therefore, specifically, an image from one second before the detected time to the time of detection, an image one second after the detected time, and the like are extracted.

  In addition, when a signal from a spatial sensor (long distance type) is received, for example, when monitoring a corridor or the like as the long distance, images before and after passing through the sensor range are necessary. Extract less images than normal types after detection. Therefore, specifically, an image from 0.5 seconds before the detected time to the time of detection, an image after 1, 2, 3, 4, 5 seconds from the detected time, and the like are extracted.

  In addition, when an emergency call is received from the emergency call device, it is assumed that the caller will make an emergency call while escaping from the emergency or after escaping from the emergency, so the image before pressing the emergency button So that a large number of images before the button is pressed are extracted. Therefore, specifically, an image or the like before 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 seconds is extracted from the time when the button of the emergency call device is pressed.

  In the present invention, the extraction condition is not limited to the above-described content. For example, a combination of detection signals from a plurality of sensors and a video (or image) captured by another corresponding imaging device are used. It can be extracted or appropriately changed depending on the time to acquire the video or image to be acquired.

<Specific example>
Here, the relationship between the extraction conditions corresponding to the sensors will be described using a specific example. 5 to 7 are diagrams showing examples (No. 1 to No. 3) of extracting a predetermined image from a captured image. In the example described later, it is assumed that the above-described functions of the video recording device 12 are built in the imaging device.

  First, in the example (part 1) in which a predetermined image is extracted from the photographed image shown in FIG. Two image pickup apparatuses 11 (window image pickup apparatus 11-1 and door image pickup apparatus 11-2) are provided. Further, the windows 41-1 to 41-4 are provided with window opening / closing sensors 43-1 to 43-4, respectively, and the door 42 is provided with a door opening / closing sensor 44.

  In the example of FIG. 5, the imaging device 11-1 is associated with the window opening / closing sensors 43-1 to 43-4, and the imaging device 11-2 is associated with the door opening / closing sensor 44. It shall be.

  Here, in FIG. 5, for example, when any of the windows 41-1 to 41-4 is opened, any of the corresponding window opening / closing sensors 43-1 to 43-4 is operated. At this time, when the detection signal from the detected window opening / closing sensor 43 is received by the image recording control device 13, the data shown in FIGS. 3 and 4 are read out from the storage means 33, the selection of the imaging device 11 and the acquisition image Perform extraction.

  Specifically, based on the instruction information from the image recording control device 13, from all the images stored in the primary storage means 21 built in the imaging device 11-1, from one second before the detection time and before the detection time. The video up to the time of detection and the image one second after the detected time are extracted and stored in the secondary storage means 22. The accumulated data is output to the image recording control device 13 instantaneously or at a predetermined timing.

  Further, when the door opening / closing sensor 44 detects that the door 42 is opened, the imaging device 11-2 performs the same processing as described above, and based on the instruction information from the image recording control device 13, An image one second after the time detected by the sensor is extracted from all the images stored in the primary storage unit 21 built in the imaging device 11-1 and stored in the secondary storage unit 22. The accumulated data is output to the image recording control device 13 instantaneously or at a predetermined timing. As a result, the image recording control device 13 can extract an acquisition target image (including a video) that is optimal for checking the situation when an abnormality occurs.

  Next, an example (part 2) of extracting a predetermined image from the captured image shown in FIG. 6 will be described. In the example shown in FIG. 6, a space sensor 45 is provided. That is, FIG. 6 shows an example of photographing a person (criminal) who enters from the door 42 and approaches the safe. In such a case, when the space sensor 45 detects a person, a detection signal from the space sensor 45 is transmitted to the image recording control device 13 according to the conditions set by the imaging device selection means 35 and the acquired image extraction means 36. Then, as described above, a predetermined image (or video) is extracted from all videos captured by the imaging device 11-1 and stored in the secondary storage unit 22, and then the image or the like is acquired.

  When the image recording control device 13 receives the detection signal of the space sensor 45, the image recording control device 13 refers to the data shown in FIG. 4 described above, for example, images from 0.5 seconds before the sensor detection to the detection time. The images after 1, 2, 3 seconds are extracted.

  Next, an example (part 3) of extracting a predetermined image from the captured image shown in FIG. 7 will be described. In the example illustrated in FIG. 7, the imaging device 11-2 is provided outside the security target facility 40, and the imaging device 11-3 is also provided in the hallway outside the room. In the example of FIG. 7, when only one of the space sensor 45 or the window opening / closing sensors 43-1 to 43-4 is detected, the same processing as described above is performed, and the imaging device 11-1 captures the image. The acquisition target image is extracted from the obtained image.

  Further, for example, when an abnormality or the like is detected by any of the window open / close sensors 43-1 to 43-4, and then the space sensor 45 detects an abnormality or the like, the intruder first enters from the window, and then the room It can be presumed that it went out into the hallway through the inside. Therefore, in that case, for example, in the imaging device 11-2, in order to confirm the state of the intruder through the windows 41-1 to 41-4, before the detection of the window opening / closing sensors 43-1 to 43-4. Extract a lot of images. Further, in order to confirm the state of moving to the corridor in the imaging device 11-3, a large number of images after detection by the space sensor 45 are extracted. Thereby, it is possible to trace the route where the suspicious person went.

  That is, as shown in the above-described embodiment, when detection is performed by a plurality of sensors, acquisition target images are respectively extracted from the plurality of imaging devices at preset timings based on the detected time and order. be able to. In the present embodiment, acquisition target images corresponding to the respective extraction conditions can be simultaneously extracted from a plurality of imaging devices.

<Other embodiments>
In the above-described embodiment, the video or image captured by the imaging device 11 is acquired and output to the monitoring center 15 according to the extraction condition corresponding to each sensor of each sensor group 14. However, the present invention is not limited to this. For example, a priority order can be set in advance for each sensor, and the resolution of the image can be changed in accordance with the set priority order. As a result, for example, the more important the image, the higher the resolution of the image, and the less important the image, the lower the image resolution or the smaller the image size.

  In the above-described embodiment, the image obtained by the image recording control device 13 is transmitted to the monitoring center 15 via the communication network 16, but the present invention is not limited to this. For example, the transmission destination can be notified by e-mail or the like to a guard's portable terminal or a PC (Personal Computer) of a facility manager provided in the facility to be guarded.

  Furthermore, in the present embodiment, depending on whether the transmission destination is the monitoring center 15, the guard's mobile terminal, or the administrator's PC in the guarded facility, a video or image compression method, The compression rate can also be changed. For example, when sending video or images to the security guard closest to the sensor that detected the abnormality or the mobile terminal of the security guard in charge of the area of the detected sensor, it is more urgent, so For example, the resolution is converted into a resolution that can be displayed on the screen of the mobile terminal without considering the resolution. Furthermore, at the time of transmission of the video or image, it is possible to promptly notify the responsible security officer by increasing the compression rate.

  Note that as a main compression method at the time of main transmission, MPEG or H.264 is used for video. A compression format such as H.264 or MP4 can be used. For an image, a compression format such as JPEG, GIF, or TIFF can be used.

  In addition, the priority order of sensors, the mail address information of the guard's mobile terminal, the IP address information of the administrator's PC, etc. in the other embodiments described above are managed in advance in the storage means 33 of the image recording control device 13. The target data is read as necessary and the above-described processing is performed.

<Screen example>
Next, an example of an image from the image recording control device 13 displayed on the monitoring center 15 will be described with reference to the drawings. FIG. 8 is a diagram illustrating an example of a screen displayed on the monitoring center. In the screen example shown in FIG. 8, the screen monitor 50 is configured to include a front image display area 51, a detection time image display area 52, a rear image display area 53, a security information display area, and a button display area 55. Has been.

  In the previous image display area 51, a video or image before the time (at the time of detection) when any of the sensor groups 14 detects an abnormality is displayed. In addition, the image display area 52 at the time of detection displays a video or an image at the time when the abnormality is detected. Further, in the rear image display area 53, a video or an image after the time when the abnormality is detected is displayed. When there is no image to be displayed in each display area, a message indicating that nothing is displayed or there is nothing to display is displayed.

  In addition, in the security information display area 54, detection date and time information where an abnormality is detected, location information, sensor identification information, and the like are displayed.

  As shown in FIG. 8, the images and images displayed in the previous image display area 51, the detected image display area 52, and the subsequent image display area 53 depend on, for example, the type, position, priority, and the like of the detected sensor. The video or image extracted under the extraction conditions in the acquired image extraction means 36 is displayed. In addition, when displaying a video in each display area, the acquired video can be automatically played back repeatedly or can be played back or stopped by selecting the area.

  Thereby, on the monitoring center 15 side, the suspicious person who is the target person can be quickly grasped from the displayed image.

  Further, in the button display area 55 shown in FIG. 8, a save button, a print button, and a close button are provided as an example. Thus, the obtained video, image, etc. can be saved in a file, the image can be printed, and the screen monitor 50 can be ended by a close button. Note that the screen layout shown in FIG. 8 is merely an example, and other layouts may be used. In the present embodiment, the displayed item, the displayed image size, the resolution, and the like are displayed as a front image, a detection image, and a rear image. The images may be displayed differently.

  In that case, for example, the position and type of the sensor that detected the abnormality, the position information of the associated imaging device, etc. are set in advance as to which of the previous image, the image at the time of detection, and the subsequent image to be enlarged. Then, when the extracted video or image is stored in the storage means 33 of the image recording control device 13 and transmitted from the image recording control device 13 to the monitoring center, image conversion, compression, or the like is performed corresponding to each image. It can be carried out.

  Further, in the present embodiment, the image recording control device 13 may acquire a real-time image after abnormality detection and immediately transmit it to the monitoring center 15, and if it has a face recognition function or the like, it is extracted. It is also possible to perform face recognition processing on a video or image, transmit the recognition result to the monitoring center 15, and display the recognition result or the like on the screen shown in FIG.

  As described above, according to the present invention, it is possible to acquire an optimal video for confirming the situation when an abnormality occurs according to the abnormality that has occurred.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications, within the scope of the gist of the present invention described in the claims, It can be changed.

DESCRIPTION OF SYMBOLS 10 Monitoring system 11 Imaging device 12 Video recording device 13 Image recording control device 14 Each sensor group 15 Monitoring center 16 Communication network 21 Primary storage means 22 Secondary storage means 31 Input means 32 Output means 33 Storage means 34 Transmission / reception means 35 Imaging device selection Means 36 Acquired image extraction means 37 Control means 40 Security target facility 41 Window 42 Door 43 Window open / close sensor 44 Door open / close sensor 45 Spatial sensor 50 Screen monitor 51 Front image display area 52 Detection image display area 53 Rear image display area 54 Security information Area 55 Button display area

Claims (5)

In an image recording control apparatus for extracting a predetermined image from a plurality of imaging devices based on detection signals obtained from a plurality of sensors installed in the target facility,
Based on the identification signal of the sensor that has received the detection signal, the position of the sensor accumulated in advance is acquired, and the plurality of imaging is based on the acquired position of the sensor and the position of the plurality of imaging devices. Imaging device selection means for selecting at least one imaging device of the devices;
Of the images captured by the imaging device selected by the imaging device selection means, before and at the time of detection of the sensor, from the image or image after detection, an acquired image extraction means for extracting according to different extraction conditions;
Have a transmission means for transmitting the video or image obtained by the obtaining image extracting unit,
The acquired image extraction means includes
When the sensor that has received the detection signal is a window opening / closing sensor that detects opening / closing of a window in the target facility, the image before detection, at the time of detection, and after detection is extracted,
When the sensor that has received the detection signal is a door opening / closing sensor that detects opening / closing of the door in the target facility, an image after detection is extracted,
If the sensor that has received the detection signal is a spatial sensor in the target facility, extract the number of images after detection more than the number of images before detection,
When the sensor that has received the detection signal is an emergency notification device in the target facility, the number of images before the emergency button of the emergency notification device is pressed is extracted more than the number of images after being pressed. An image recording control device. The imaging device selection means includes
2. The image recording control according to claim 1, wherein when the detection signals are received from the plurality of sensors , one or a plurality of imaging devices are selected based on time or order of reception of the detection signals. apparatus. The acquired image extraction means includes
3. The image recording control according to claim 1, wherein when the detection signals are received from the plurality of sensors, an image captured from an imaging device corresponding to the combination of the plurality of sensors is extracted. apparatus. The acquired image extraction means includes
4. The image recording according to claim 1, wherein an image size or a resolution is changed according to a priority set in advance for each of the plurality of imaging devices, and the image is transmitted from the transmission unit. 5. Control device. A monitoring system comprising the image recording control device according to any one of claims 1 to 4 and a monitoring center that monitors the inside of the target facility in which the image recording control device is installed.
The image recording control device transmits an alarm signal to the monitoring center and transmits the video or image obtained by the acquired image extraction means in the compression format preset by the sensor and the imaging device. Or the monitoring system characterized by compressing and transmitting an image.

Images