JP6290537B2 - Video surveillance system for surveillance camera video recording apparatus and method for confirming health of surveillance camera video recording apparatus in video surveillance system - Google Patents

Description

  The present invention relates to a health check apparatus and a health check method for a camera video recording apparatus in a video monitoring system that records a video shot by a monitoring camera on a monitoring camera video recording apparatus, for example, a DVR (Digital Video Recorder).

  As background art in this technical field, there is JP 2011-259034 A (Patent Document 1). This publication discloses a network camera anomaly detection system that captures still images and moving images with a camera and stores the captured images in a hard disk drive HDD.

JP 2011-259034 A

  Patent Document 1 describes a video monitoring system that records video monitored and photographed by a camera on a recording medium. However, Patent Document 1 does not describe checking the recording state and the validity of the recording data.

  In a general video monitoring system, for example, connection confirmation with a DVR and operation confirmation by acquiring operation information inside the DVR are only performed, and the recording state and the validity of the recorded data are not confirmed.

  That is, in a conventional surveillance camera video recording device such as a DVR in a video surveillance system, as shown in FIG. 7, connection diagnosis (connection confirmation) and monitoring by a Ping (Packet InterNet Group) command from the monitoring device 150 or the like. Most of the operation information inside the DVRs 130 and 140 connected to the cameras 110 and 120 is acquired, and the health check for whether the recording is performed correctly has not been performed. As described above, if the network connection confirmation with the DVR by Ping is normal and the operation information such as the DVR operation log can be acquired, the method in which it is considered to be healthy is that even if the recording of the DVR is actually stopped, There has been a problem in that it is erroneously determined to be normal even if a failure or a connection failure between the DVRs from the camera occurs.

  Therefore, the present invention can confirm the recording state (health) of a monitoring camera video storage device such as a DVR, and can prevent a recording omission or abnormal recording from being performed. Provide a health confirmation method.

  In order to solve the above-mentioned problem, the present invention accesses a surveillance camera video recording device and confirms the health of the surveillance camera video recording device based on the consistency of the recording state with information acquired from the recording device. Have means.

  For example, the monitoring device is (1) current date and time of the monitoring camera video recording device, (2) recording settings for each camera channel (recording schedule, presence or absence of event recording such as motion detection, etc.), (3) latest recording data And (4) means for executing the following functions based on the data size per unit time of the latest recorded data. That is, whether or not the recording state is the recording data size is confirmed by (1) and (2), and the difference between the current date and time and the latest recording date and time is within the allowable range by (1) and (3). According to (2) and (4) above, whether the recording data size is not too large or too small compared to the standard value (abnormal recording due to out-of-focus, camera failure, or obstructive action). Each means for determining and analyzing (determination) and checking the health.

The present invention is a video surveillance system comprising a monitoring device connected to a surveillance camera video recording device for recording video of a surveillance camera.
The monitoring device
Means for acquiring date and time information as a reference from the time distribution device, and correcting the current date and time of the monitoring device itself;
Means for connecting to the monitoring camera video recording device with a connection confirmation command, and acquiring information of the monitoring camera and a recording setting for each of the monitoring cameras;
Means for obtaining the current time of the surveillance camera video recording device;
Means for obtaining the latest recording date and time for each surveillance camera;
Means for determining whether a date and time difference between the current time of the monitoring camera video recording device and the latest recording date and time is within an allowable range;
Means for determining that the recording by the monitoring camera video recording device is in a normal state when the date and time difference is in an allowable range, and obtaining a latest recording data size for each monitoring camera;
Recording data size at the time of recording quality of the unit time, image size, compared to the record data size of the normal based on the setting of the frame rate, means for determining whether the allowable range,
When the recording data size is in an allowable range, it is determined that the shooting data by the monitoring camera is normal, and a means for setting a next confirmation date and time,
When the date difference is not within the allowable range, it is determined that the recording by the monitoring camera video recording device is in an abnormal state, and when the recording data size is not within the allowable range, the shooting data by the monitoring camera is determined. And a means for notifying the monitoring device of the monitoring device.

In addition, the present invention is a method for confirming the health of a monitoring camera video recording device with a control unit of the monitoring device in a video monitoring system provided with a monitoring device connected to a monitoring camera video recording device that records video of the monitoring camera. And
The control unit of the monitoring device is
Obtaining reference date and time information from the time distribution device, and correcting the current date and time of the monitoring device itself;
Connecting to the monitoring camera video recording device with a connection confirmation command, obtaining the monitoring camera information and the recording setting for each monitoring camera;
Obtaining a current time of the surveillance camera video recording device;
Obtaining the latest recording date and time for each surveillance camera;
Determining whether a date and time difference between the current time of the monitoring camera video recording device and the latest recording date and time is within an allowable range; and
Determining that the recording by the monitoring camera video recording device is in a normal state when the date and time difference is in an allowable range, and obtaining the latest recording data size for each of the monitoring cameras;
Recording data size at the time of recording quality of the unit time, image size, compared to the record data size of the normal based on the setting of the frame rate, determining whether the allowable range,
If the recording data size is within an allowable range, determining that the shooting data by the monitoring camera is normal and setting a next confirmation date;
When the date difference is not within the allowable range, it is determined that the recording of the monitoring camera video recording apparatus is in an abnormal state, and when the recording data size is not within the allowable range, the shooting data by the monitoring camera is abnormal. And the step of notifying the supervisor side.

  According to the present invention, it is possible to detect an abnormal function of the surveillance camera video storage device at an early stage.

For example, the recording state can be confirmed, and omission of recording or abnormal recording can be prevented.
Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a figure which shows schematic structure of the health confirmation system at the time of applying the surveillance camera video recording apparatus of this invention to an operation monitoring system. It is a block diagram which shows the DVR healthyness confirmation function structure of the monitoring apparatus of this invention. It is a figure which shows an example of a DVR video recording setting table. It is a figure which shows an example of an allowable value setting table. It is a process flowchart explaining the process of a DVR healthyness confirmation apparatus. It is a configuration image diagram for explaining a DVR health check method when a conventional surveillance camera video recording device is applied to an operation monitoring system.

  Hereinafter, embodiments will be described with reference to the drawings. This embodiment has a plurality of surveillance cameras, a plurality of surveillance camera video recording devices, and a surveillance device, and is applied to a video surveillance system that monitors the DVD operating state when a DVR is used as the surveillance camera video recording device. Is.

  FIG. 1 is a configuration diagram of a video monitoring system that monitors the operating state of the surveillance camera video recording device (DVR) of the present embodiment.

  The video monitoring system 100 includes a plurality of monitoring camera groups 110 and 120, a plurality of camera video recording devices 130 and 140, a monitoring device 150, and a warning indicator lamp 160.

  The plurality of camera video recording devices 130 and 140 are made of DVR, for example. Each DVR records videos taken by a plurality of surveillance cameras 110 and 120, respectively.

The monitoring device 150 is connected to the camera video recording devices 130 and 140 via the network 170 and has a function of monitoring the recording state of the recording device. Since this monitoring function is well known, detailed description thereof is omitted.
The monitoring device 150 acquires the internal information, that is, the recording date / time information, the recording information, the data size, and the like from the camera video storage devices (DVR) 130 and 140, and uses the information and the like to monitor the monitoring camera video recording device 130. , 140 health check function.

  According to the monitoring apparatus 150 having such a health check function, for example, by acquiring date / time information and recording information in the DVR, it is possible to check whether the network connection is normal or abnormal without using Ping. Also, by acquiring date / time information inside the DVR, it is possible to check the deviation from the current time. By acquiring recording information, it is confirmed whether recording is ongoing at the time of information acquisition. Is possible. Also, information on the recording data size is acquired. (Generally, if the camera is faulty or poorly connected, it becomes a dark image, the recording data size becomes extremely small, or the ratio of noise to the video increases. Therefore, it is possible to confirm whether or not the camera is out of order or defective in connection with the camera.

  FIG. 2 is a block diagram illustrating a functional configuration of an apparatus (hereinafter referred to as a health module) that realizes a function of confirming the health of the monitoring camera video recording apparatus in the monitoring apparatus 150.

  In the figure, a monitoring device 150 includes hardware such as a PC and a server, and monitoring software. In addition to a function of monitoring a monitoring object based on images taken by the monitoring cameras 110 and 120, a monitoring camera video recording is performed. A function for confirming the health of the devices (DVR) 130 and 140, that is, a health confirmation module 151 is provided.

  The health check module 151 for checking the health is (1) current date and time of the surveillance camera video recording device (DVR), (2) recording setting for each camera channel (recording schedule, presence / absence of event recording such as motion detection, etc.) ), (3) the date and time of the latest recorded data, and (4) means for executing the following functions based on the data size per unit of the latest recorded data.

  That is, the health check module 151 is configured to acquire the current date and time and camera channel information of the monitoring camera video recording devices (DVR) 130 and 140, recording settings for each camera channel (presence of event recording such as recording schedule and motion detection). Etc.), means for obtaining the date and time of the latest recording data of the DVR, means for obtaining the data size per unit time of the latest recording data for each camera channel, and the current date and time of the monitoring device (1) By comparing the date and time, means for determining the time lag of the surveillance camera video recording devices (DVR) 130 and 140, the recording setting for each camera channel in (2) and the date and time of the latest recorded data in (3) To determine whether the difference between the current date and time and the latest recording date is within the allowable range (determining whether recording has stopped). Depending on the recording setting for each camera channel in (2) and the data size per unit of the latest recording data in (4), the recording data size is not too large or too small compared to the standard value. Means for judging (out-of-focus, camera failure, abnormal recording judgment due to obstructive action).

  The health check module 151 having these means is configured by a server, for example. The server includes an input / output device 1511, a date and time management device 1512, an arithmetic device 1513, a storage device 1514, and the like.

  The input / output device 1511 includes a communication unit 15111, a notification unit 15112, and a date / time information acquisition unit 15113.

  The communication unit 15111 communicates with the DVRs 130 and 140 via the network 170 and receives the above-described DVR internal information.

  The date and time information acquisition unit 15113 acquires the current date and time of the monitoring camera video recording devices (DVR) 130 and 140 via the network 170.

  The reporting unit 15112 reports the operating state to the warning indicator lamp 160. For example, when an analysis result described later exceeds an allowable value described later, the warning indicator lamp 160 is notified. At this time, an abnormality type indicating what the abnormality is is added and reported. For example, in the case of a recording abnormality, a red light is turned on and a buzzer is sounded.

  The date and time management device 1512 includes a task scheduler 15121, a current date and time holding unit 15122, and a current date and time correction unit 15123.

  The task scheduler 15121 activates the arithmetic device 1514 of the monitoring device 150 and instructs execution of processing for health check.

  The current date and time correction unit 15122 corrects the current date and time of the monitoring device 150 based on the date and time information as a reference from the time distribution device 180 acquired by the date and time information acquisition unit 15113 and holds accurate date and time information in the current date and time holding unit 15123. To do.

  The task scheduler 15121 refers to the date / time information in the current date / time holding unit 15122 and, when the specified date / time is reached, instructs the arithmetic device 1513 to execute the DVR health check process.

  The arithmetic device 1513 includes a DVR information acquisition unit 15131, a DVR information analysis unit 15132, an analysis result writing unit 15133, and a control unit 15134.

  The DVR information acquisition unit 15131 acquires the DVR information received by the communication unit 15111, tabulates the acquisition information, and sets it as a DVR recording setting table T1 (see FIG. 3). The DVR recording setting table T1 will be described later.

That is, information indicating the current recording setting is acquired from the DVR, and (1) whether or not the camera is installed is set to “connection presence / absence”, and (2) whether or not the timer recording is performed is “timer recording and timer recording time zone”. (3) If “alarm recording” is performed, “4)“ standard data size ”is calculated in“ alarm recording ”based on the recording quality, frame rate, and image size, and is written and stored in the DVR recording setting table T1. .
If timer recording and alarm recording are performed on the same camera channel, both can be set.

  The DVR information analysis unit 15132 receives the above-described DVR information and analyzes the health of the surveillance camera video recording devices (DVR) 130 and 140.

  The analysis result writing unit 15133 writes and stores the result analyzed by the DVR analysis unit 15132 in the analysis result recording unit 15142 of the storage device 1514.

  The control unit 15134 controls each unit. The control process will be described later.

  The storage device (storage means) 1514 includes a DB or a memory that stores each of the acquisition information described above, and includes an acquisition information recording unit 15141, an analysis result recording unit 15142, and an allowable value holding unit 15143.

  The acquisition information recording unit 15141 stores the DVR acquisition information received by the communication unit 15111 and acquired by the DVR information acquisition unit 15131 in the DVR recording setting table T1.

  When the DVR analysis unit 15132 analyzes the tolerance value holding unit 15143, the tolerance value holding unit 15143 stores the tolerance value setting table T2 (see FIG. 4) including the tolerance values (setting values) of the determination items for health check. The allowable value setting table T2 will be described later.

  When the warning indicator lamp 160 is connected to the monitoring device 150 and receives a report from the monitoring device, for example, the warning indicator lamp 160 turns on an indicator lamp that reports that an abnormality has occurred, or sounds a buzzer.

  FIG. 3 is a diagram illustrating an example of the DVR recording setting table T1 of the acquired information storage unit 15141.

  In the figure, the DVR recording setting table T1 includes a “camera channel” 311, “camera name” 312, “connection presence / absence” 313, “timer recording” 314, “timer recording time zone” 315, “alarm recording” 316, “ Each column includes information fields such as “latest recording date and time” 317 and “standard data size” 318.

  In “connection presence / absence” 313, “timer recording” 314, and “alarm recording” 316, the acquisition results are represented by, for example, “o” and “x”. For example, “camera channel; 1, camera name; entrance, connection presence / absence; ○, timer recording; ○, timer recording time zone; 9:00 to 16:00, alarm recording; ×, latest recording date and time; / 11/09, 13:35:49, standard data size; 20 kB ”.

  FIG. 4 is a diagram illustrating an example of an allowable value setting table of the allowable value holding unit 15143. In the drawing, the allowable value setting table T2 includes information fields of “item number” 411, “item” 412, and “setting value” 413.

  For example, in “item number 1”, “item” is “DVR connection retry count” and “setting value” is “3 times”. In “item number 2”, “item” is “DVR connection retry interval”, and “setting value” is “30 seconds”. In “item number 3”, “item” is “health check interval”, and “setting value” is “6 hours”. In “item number 4”, “item” is “DVR time (time information inside DVR)”, and “setting value” is “time difference from monitoring device time ± 60 seconds”. In “item 5”, “item” is “timer recording”, and “setting value” is “time difference ± 60 seconds from latest recording date / time”. In “item 6”, “item” is “alarm (motion, external contact) recording)”, and “setting value” is “day difference ± 7 days from latest recording date”. As for “item number 7”, “item” is “recording data size” and “setting value” is “standard data size ± 5 kB”.

FIG. 5 is a flowchart for explaining the processing of the DVR health check module.
In the figure, when monitoring of the recording state of the monitoring camera video recording devices (DVR) 130 and 140 by the monitoring device 150 is started in step S600, first, in step S601, the current date and time of the monitoring device 150 is referred to. In step S602, it is determined whether or not the designated date and time for executing the process has been reached. If it is not the designated date and time (No), the process waits for 1 second in step S603 and proceeds to step S601 again.

  In step S602, it is determined whether or not the designated date and time for execution of the process has been reached. Date and time information is acquired, and in step S605, the current date and time of the monitoring device 150 is corrected.

  Next, in step S606, connection to the surveillance camera video recording devices (DVR) 130 and 140 is performed via the network 170. At this time, if the network 170 or the surveillance camera video recording devices (DVR) 130 and 140 are busy or a failure has occurred and the connection has failed (No), in step S608, Waiting for the retry interval specified by item number 1 “DVR connection retry interval” in the allowable value setting table T1, and adding 1 to the number of retries in step S609.

  In step S610, if the number of retries exceeds the number of retries specified in item number 2 “DVR connection retry number” in the allowable value setting table T1, a connection error is recorded in step S611, and then step S627 described later is performed. In step S628, the process proceeds to step S625, which will be described later.

  If the connection with the surveillance camera video recording device (DVR) 130, 140 is successful in step S607 (Yes), the current camera ch connection is established from the surveillance camera video recording device (DVR) 130, 140 in step S612. Get information. This camera ch connection information is information indicating to which ch a surveillance camera is connected among n channels connectable to the surveillance camera video recording devices (DVR) 130, 140, and the maximum number is n. It is.

  Based on the camera channel connection information acquired in step S612, in step S613, the recording setting for each camera channel is acquired and written in the DVR recording setting table T1.

  Subsequently, in step S614, the current date and time of the monitoring camera video recording devices (DVR) 130 and 140 are acquired, and in step S615, it is determined whether the difference from the current time of the monitoring device 150 is within an allowable range.

  If the result of determination in step S614 is not within the allowable range (No), it is recorded in the storage device 1514 as occurrence of a time lag in step S616, and a notification to that effect is given in step S627.

  If it is within the allowable range (Yes), the latest recording date and time is acquired for each camera channel in step S617 according to the recording setting table T1, and the latest recording date and time and current time for each camera channel are acquired in step S618. It is determined whether the difference between the two is acceptable.

  If the determination result in step S618 is not within the allowable range (No), in step S619, the recording abnormality of the DVR is recorded in the storage device 1514, and a notification to that effect is given in step S627.

  If it is within the allowable range (Yes), it is recorded in the storage device 1514 as normal recording in step S620.

  Next, in step S621, the latest recorded data size is acquired for each camera channel according to the recording setting table T1, and in step S622, it is determined whether the data size of the unit time for each camera channel is within an allowable range.

  If the determination result in step S622 is not within the allowable range (No), it is recorded in step S623 as imaging data abnormality or camera abnormality in the storage device 1514, and a notification to that effect is made in step S627.

  If it is within the allowable range (Yes), in step S624, it is recorded in the storage device 1514 as normal shooting data and normal camera.

  Thereafter, in step S625, the next confirmation date is set, and the process returns to step S600 via step S626.

According to the embodiment described above, it is effective in a video monitoring system in a system in which a large number of DVRs and the like are connected.
It is possible to check whether or not the internal functions of all apparatuses / devices that operate with the firmware and hold the internal information are operating normally.

In addition, this invention is not limited to the Example mentioned above, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.
Each of the above-described configurations, functions, means, and the like may be realized by hardware by designing a part or all of them, for example, by an integrated circuit. In addition, each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by a processor (control unit). Information such as programs, tables, and files for realizing each function can be stored in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.
Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

100 video surveillance systems 110, 120 multiple surveillance camera groups 130, 140 multiple camera video storage devices (DVR)
150 Monitoring Device 151 Health Checking Device for Monitoring Camera Video Recording Device (Health Checking Module)
160 Warning indicator 170 Network 180 Time distribution device (time server)

Claims (2)

In a video surveillance system comprising a surveillance device connected to a surveillance camera video recording device for recording surveillance camera video,
The monitoring device
Means for acquiring date and time information as a reference from the time distribution device, and correcting the current date and time of the monitoring device itself;
Means for connecting to the monitoring camera video recording device with a connection confirmation command, and acquiring information of the monitoring camera and a recording setting for each of the monitoring cameras;
Means for obtaining the current time of the surveillance camera video recording device;
Means for obtaining the latest recording date and time for each surveillance camera;
Means for determining whether a date and time difference between the current time of the monitoring camera video recording device and the latest recording date and time is within an allowable range;
Means for determining that the recording by the monitoring camera video recording device is in a normal state when the date and time difference is in an allowable range, and obtaining a latest recording data size for each monitoring camera;
Recording data size at the time of recording quality of the unit time, image size, compared to the record data size of the normal based on the setting of the frame rate, means for determining whether the allowable range,
When the recording data size is in an allowable range, it is determined that the shooting data by the monitoring camera is normal, and a means for setting a next confirmation date and time,
When the date difference is not within the allowable range, it is determined that the recording by the monitoring camera video recording device is in an abnormal state, and when the recording data size is not within the allowable range, the shooting data by the monitoring camera is determined. A monitoring camera video recording apparatus video monitoring system, comprising: means for determining that the camera is abnormal and notifying a monitoring person of the monitoring apparatus. A method for confirming the health of a surveillance camera video recording device with a control unit of the surveillance device in a video surveillance system comprising a surveillance device connected to a surveillance camera video recording device for recording video of the surveillance camera,
The control unit of the monitoring device is
Obtaining reference date and time information from the time distribution device, and correcting the current date and time of the monitoring device itself;
Connecting to the monitoring camera video recording device with a connection confirmation command, obtaining the monitoring camera information and the recording setting for each monitoring camera;
Obtaining a current time of the surveillance camera video recording device;
Obtaining the latest recording date and time for each surveillance camera;
Determining whether a date and time difference between the current time of the monitoring camera video recording device and the latest recording date and time is within an allowable range; and
Determining that the recording by the monitoring camera video recording device is in a normal state when the date and time difference is in an allowable range, and obtaining the latest recording data size for each of the monitoring cameras;
Recording data size at the time of recording quality of the unit time, image size, compared to the record data size of the normal based on the setting of the frame rate, determining whether the allowable range,
If the recording data size is within an allowable range, determining that the shooting data by the monitoring camera is normal and setting a next confirmation date;
When the date difference is not within the allowable range, it is determined that the recording of the monitoring camera video recording apparatus is in an abnormal state, and when the recording data size is not within the allowable range, the shooting data by the monitoring camera is abnormal. A method for confirming the health of the surveillance camera video recording apparatus, comprising the steps of:

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