JP2005215996A - Apparatus and method for managing monitor picture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote monitor unit, a monitor system and a remote monitoring management method for performing alarm notification and record control of monitor pictures which enable the detection of a non-monitored site or an abnormality in browse through the management of a browsing state in a monitor terminal which browses monitor pictures from a site to be monitored by means of picture distribution information generated from a session state being set between the site to be monitored and the monitor terminal. <P>SOLUTION: In a monitor picture management unit 400, the browsing state in a monitor terminal 300 in regard to monitor pictures transmitted from a monitor unit 200 is monitored, and whether the browsing state in the monitor terminal 300 is normal or abnormal is decided on the basis of a preset monitoring condition. When it is decided abnormal, a manager is notified of browsing state alarm information. Thus, the manager can take a measure immediately against the monitor unit having the abnormality. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a monitoring system for remotely monitoring a plurality of monitoring devices. In particular, focusing on each monitoring state between a monitoring device and a remote monitor in the field of video monitoring, distribution from the plurality of monitoring devices to the remote monitor. Management of the distribution state of the surveillance video to be performed.

  In recent years, with the increase in crimes, there is an increasing demand for video surveillance systems that install cameras, sensors, storage devices, and the like to prevent crimes. As a conventional remote monitoring system, for example, there is a remote operation monitoring notification system described in Patent Document 1. In this remote operation monitoring notification system, when a monitoring sensor reacts, an alarm is automatically notified to a user terminal.

In addition, the video recording apparatus described in Patent Document 2 allows the abnormal video to be reproduced retroactively when an abnormality occurs while recording the video to be monitored in real time.
Japanese Patent Laid-Open No. 5-128391 Japanese Patent No. 2991980

  However, in the conventional remote operation monitoring notification system and the video recording apparatus, the abnormality of the monitoring target is notified and the abnormal video is recorded and reproduced, but the transmission destination of the monitoring video is not managed collectively. For this reason, it is impossible to discover that there is a camera that is not monitored by the supervisor, that is, a monitoring device that is not monitored, and if an abnormal situation occurs at such a point, the response is delayed. It was.

  For example, if the monitoring device to be monitored has not been monitored due to the absence of a monitoring person, a monitoring mistake, a system failure at the monitoring base, etc., the monitoring device to be monitored is not monitored by anyone of the monitoring personnel The security level is lowered due to no monitoring. In addition, when an abnormality occurs in such an unmonitored state, there is a situation in which the response is delayed because no one is monitoring

  In addition, in a monitoring environment where there are a plurality of supervisors, it is not possible to distinguish whether or not the accumulated surveillance video is a monitored video, so it is necessary to visually check the accumulated surveillance video. In the work, for example, the work for confirming the presence or absence of a suspicious person or a behavior suspicious person, even the video that has already been confirmed by the supervisor is a target of the confirmation work, and there is a problem that the work is inefficient.

  The present invention has been made in view of such a point, and monitoring video management having a function of managing the distribution status of all the monitoring videos distributed to a monitor from a plurality of monitored bases and detecting an abnormality in the distribution status. An object is to provide a device and a monitoring video management method.

  The monitoring video management apparatus of the present invention is a monitoring video management apparatus that manages monitoring video, and is based on a session state set between the monitoring apparatus that captures the monitoring video and the supervisor terminal that browses the monitoring video. A session management unit that generates and manages video distribution information; a browsing state alarm generation unit that determines a browsing state of the supervisor terminal from the video distribution information and generates an alarm indicating the browsing state of the monitoring video; The structure which comprises is taken.

  According to this configuration, the video distribution information is generated and managed from the session state set between the monitored base and the supervisor terminal, the monitoring video browsing state is determined from the video distribution information, and the monitoring video browsing is performed. Since a status alarm is generated, it is possible to detect a non-monitoring base and a browsing status.

  The surveillance video management apparatus according to the present invention is the surveillance video management apparatus according to claim 1, wherein the session management unit includes at least information on opening / closing of the session, a session ID for specifying the session, and the session extension. A configuration in which video distribution information is generated and managed from the user ID of the user of the monitored terminal, the camera ID of the monitoring device that captures the monitoring video distributed by the session, and the browsing environment information of the user take.

  According to this configuration, since the video distribution information is generated and managed based on a plurality of pieces of information related to the session, the reliability of the video distribution information can be improved.

  The monitoring video management device according to the present invention is the monitoring video management device according to claim 1, wherein the browsing status alarm generation unit compares the video distribution information with browsing status management information obtained from the video distribution information. A configuration is adopted in which it is determined whether the browsing state matches a predetermined condition.

  According to this configuration, it is possible to detect the monitored base or the supervisor terminal where the browsing abnormality has occurred, and it is possible to speed up the response to the browsing abnormality.

  The surveillance video management apparatus according to the present invention is the surveillance video management apparatus according to claim 3, wherein the browsing state alarm generation unit includes, for each imaging device ID, the number of browsing users, the list of user IDs, and the browsing status. For each of the user IDs, a browsing state management table for managing a state flag indicating that the condition matches a predetermined condition, a time when it is determined that the condition is not met, and a terminal of the supervisor terminal A browsing environment management table for managing types, and a monitoring condition information table for managing the required number of constantly monitoring personnel, the monitoring level of the monitoring device, and the monitoring function level of the monitoring device terminal for each imaging device ID. The structure which comprises these is taken.

  According to this configuration, in order to determine whether the browsing state of the monitoring video matches a predetermined condition from the browsing state management table, the browsing environment management table, and the monitoring condition information table, the browsing state of the monitoring video Can be reliably detected.

  The surveillance video management apparatus according to the present invention is the surveillance video management apparatus according to claim 1, further comprising a video accumulation unit that accumulates the surveillance video, wherein the browsing state alarm generation unit is associated with the browsing state alarm. The monitoring video is stored in the video storage unit.

  According to this configuration, since the monitoring video is stored in the video storage unit in association with the browsing status alarm, the monitoring video in which the browsing status that does not meet the predetermined condition can be confirmed later.

  The monitoring video management apparatus according to the present invention further comprises a video storage unit for storing the monitoring video, wherein the browsing status alarm generation unit generates an alarm of the browsing status. During this period, the monitoring video is stored in the video storage unit.

  According to this configuration, since the monitoring video is stored in the video storage unit while the browsing alarm is generated, the monitoring video in which the browsing status that does not meet the predetermined condition is confirmed later. Can do.

  The monitoring video management device according to the present invention is the monitoring video management device according to claim 1, wherein when a browsing status alarm is generated by the browsing status alarm generation unit, an alarm transmission unit that sends a proxy monitoring message to another user Is further provided.

  According to this configuration, when a browsing state that does not match a predetermined condition occurs, a proxy monitoring message is sent to another user, so that a monitoring state that does not match a predetermined condition occurs. Other users can monitor the monitoring video of the device.

  The monitoring video management apparatus according to the present invention is the monitoring video management apparatus according to claim 1, wherein the browsing state alarm generation unit increases the sensitivity of the imaging device that captures the monitoring video in which the browsing state alarm is generated. take.

  According to this configuration, in order to increase the sensitivity of the imaging device that captures the monitoring video in which the browsing state that does not match the predetermined condition occurs, the monitoring target in which the browsing state that does not match the predetermined condition has occurred. Can be reliably imaged.

  The surveillance video management method of the present invention is a surveillance video management method in a surveillance video management device that manages surveillance video, and a session that manages video distribution information from the state of a session between the surveillance video from the surveillance device and the supervisor terminal. A management state; and a browsing state alarm generation step of generating an alarm indicating the browsing state of the monitoring video by judging the browsing state of the supervisor terminal from the video distribution information.

  According to this method, the video distribution information is generated and managed from the session state set between the monitored base and the supervisor terminal, the monitoring video browsing state is determined from the video distribution information, and the monitoring video browsing is performed. Since a state alarm is generated, it is possible to detect an unmonitored base or a browsing state that does not meet a predetermined condition.

  The present invention manages a browsing state in a supervisor terminal that browses a monitoring video from a monitoring device using video distribution information generated from a session state set between the monitoring device and the supervisor terminal, In addition, it is possible to detect a browsing state or the like that does not meet a predetermined condition, and execute alarm notification, monitoring video recording control, or the like.

  The gist of the present invention is to manage the distribution status of all the monitoring videos distributed to the monitor from a plurality of monitored bases and detect the distribution status that does not meet the predetermined condition.

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

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a monitoring system according to Embodiment 1 of the present invention.

  A monitoring system 100 shown in FIG. 1 includes a plurality of monitoring devices 200 installed at a plurality of monitored bases, and a plurality of supervisor terminals that allow a browsing user to monitor monitoring images transmitted from the monitoring devices 200 at remote locations. 300 and a monitoring video management device 400 that is connected between the monitoring device 200 and the supervisor terminal 300 via networks N1 and N2 and manages the transmission status and browsing status of the monitoring video.

  The monitoring device 200 includes a plurality of cameras (imaging devices) 201 and 202, a plurality of sensors 203 and 204, and a communication I / F 205.

  The cameras 201 and 202 are configured by a video camera or an electronic still camera, take an image of a monitoring target in accordance with a preset monitoring condition, and transmit the monitoring video to the monitoring video management apparatus 400 via the communication I / F 205 via the network N1. To do.

  The sensors 203 and 204 are composed of a temperature sensor, a sound sensor, a vibration sensor, and the like, detect the temperature, sound, and vibration to be monitored according to preset monitoring conditions, and monitor the sensor information via the network N1. It transmits to the management apparatus 400.

  Further, the sensors 203 and 204 have an alarm notification function for detecting an abnormality of a monitoring target and notifying an alarm, and compare a preset threshold value with a detection signal level. For example, the detection signal level exceeds the threshold value. The sensor alarm signal is transmitted to the surveillance video management apparatus 400 via the network N1.

  The communication I / F 205 is connected to the network N1, packetizes the monitoring video input from the cameras 201 and 202, the sensor information and sensor alarm signals input from the sensors 203 and 204, and the network N1 according to a predetermined communication protocol. To the surveillance video management apparatus 400 via

  Further, the communication I / F 205 receives the monitoring condition information transmitted from the monitoring video management apparatus 400 via the network N1 by a predetermined communication protocol, sets the setting condition corresponding to the camera from the received monitoring condition information, and the sensor. Corresponding setting conditions are extracted, the extracted setting conditions are output to the cameras 201 and 202 and the sensors 203 and 204, and the settings of the imaging functions of the cameras 201 and 202 and the detection functions of the sensors 203 and 204 are changed.

  The monitor terminal 300 reproduces the monitor video and sensor information transmitted from the monitor video management device 400 via the network N2 on a monitor, a speaker, or the like.

  The monitoring video management apparatus 400 includes communication I / Fs 401 and 402, an alarm management unit 403, an alarm transmission unit 404, a session management unit 405, a browsing state alarm generation unit 406, a video input unit 407, a video storage unit 408, and a video output unit 409. Consists of.

  The communication I / F 401 receives the monitoring video, sensor information, and sensor alarm signal transmitted from the monitoring apparatus 200 via the network N1 using a predetermined communication protocol, and receives the received sensor information and sensor alarm signal to the alarm management unit 403. The monitoring video received is output to the video input unit 407.

  The communication I / F 402 receives a browsing request signal transmitted from the supervisor terminal 300 via the network N2 using a predetermined communication protocol, and outputs the received browsing request signal to the session management unit 405.

  Further, the communication I / F 402 packetizes the monitoring video input from the video output unit 409 in accordance with the browsing request signal received earlier, and the supervisor terminal requested to browse through the network N2 by a predetermined communication protocol To 300.

  The communication I / F 402 transmits the alarm notification signal input from the alarm transmission unit 404 to the supervisor terminal 300 via the network N2 using a predetermined communication protocol.

  The alarm management unit 403 manages the operation state of the sensors 203 and 204 and the occurrence of an abnormality of the monitoring target based on the sensor information and sensor alarm signal input from the communication I / F 401. When the sensor alarm signal is input, an alarm notification is performed. A signal is generated and output to the alarm transmission unit 404, and an accumulation start signal is output to the video accumulation unit 408.

  The alarm transmission unit 404 transmits an alarm notification signal from the communication I / F 402 to the supervisor terminal 300 in accordance with the alarm notification signal input from the alarm management unit 403, and the browsing state alarm input from the browsing state alarm generation unit 406. In accordance with the information and the browsing state alarm recovery information, each predetermined process at the time of occurrence of the browsing abnormal alarm and the recovery of the browsing abnormal alarm is performed. The processes at the time of the occurrence of the browsing abnormality alarm and the recovery of the browsing abnormality alarm are, for example, a process of notifying the administrator designated in advance of the browsing abnormality alarm, on / off control of an external device, and the like.

  Based on a video distribution request (a request for browsing live monitoring video and stored video) transmitted from the supervisor terminal 300, the session management unit 405 distributes to which supervisor terminal 300 the video of each camera of the monitoring device 200 is distributed. 2 is managed by the video distribution management table 4051 shown in FIG. 2, and when the video distribution request is received from the supervisor terminal 300, if the video distribution request is new, the session is opened and the video output unit 409 is distributed. In the case of a session that already exists, the video output unit 409 is instructed to distribute video. The session management unit 405 periodically manages all session information based on the session information stored in the video distribution management table 4051. When each session information has not been used for a predetermined time, that is, an existing If the video distribution request from the supervisor terminal 300 for the session is not transmitted for a predetermined time or more, the session is closed.

  In the video distribution management table 4051 in FIG. 2, a unique session ID set when a new session is opened and a session open “SET” / close “DEL” indicating the open / close state of the session are set. Corresponds to a user ID for identifying a monitor of the monitor terminal 300, a camera ID for identifying a camera that delivers a monitoring video from the monitoring device 200 that has a session, and a terminal type indicating the terminal type of the monitor terminal 300 Manage it.

  Further, the session management unit 405 generates the video distribution information shown in FIG. 3 based on the corresponding information in the video distribution management table 4051 when the session is opened and when the session is closed, and the browsing state alarm generation unit 406 generates the video distribution information. Output.

  The video distribution information includes “SET (open state) / DEL (closed state)” indicating the session state, user ID, camera ID, and “pc (personal computer) / pd (portable information) indicating the monitor terminal type. Terminal) ”is set.

  The browsing state alarm generation unit 406 acquires video distribution information from the session management unit 405 as needed, and manages the browsing state of each monitoring video of each camera of each monitoring device 200 based on the acquired video distribution information. The browsing state alarm generation unit 406 manages the browsing state of the monitoring video of each camera using the browsing state management table 4061 shown in FIG. 4 and the browsing environment management table 4062 shown in FIG. Information managed by these two tables is referred to as browsing state management information.

  Upon receiving the video distribution information from the session management unit 405, the browsing state alarm generation unit 406 updates the browsing state management information in the browsing state management table 4061. The monitoring condition of FIG. Compared with the monitoring condition information set in the information table 4063, a browsing abnormality is checked. The browsing state alarm generation unit 406 notifies the alarm transmission unit 404 of the browsing state alarm information and the browsing state alarm recovery information when the browsing abnormality is detected and when the browsing state is normally recovered from the abnormality.

  In the browsing state management table 4061 of FIG. 4, the camera ID of the camera installed in the monitoring device 200, the number of browsing users browsing the monitoring video on the supervisor terminal 300, and the user ID list indicating the user ID of the browsing user The state flag indicating whether the browsing state is normal or abnormal and the abnormal state start time indicating the time when the browsing abnormality occurs are associated and managed.

  In the browsing environment management table 4062 in FIG. 5, each browsing user ID and the monitor terminal type are managed in association with each other.

  In the monitoring condition information table 4063 of FIG. 6, the camera ID, the number of always-observable persons indicating the necessary number of observers who constantly monitor the monitoring video, the monitor-level lower limit indicating the monitor-level lower limit of the monitor, and the monitor The supervisor terminal lower limit indicating the lower limit of the function of the supervisor terminal 300 is managed in association with each other.

  Next, the operation of the session management unit 405 in the monitoring video management apparatus 400 having the above configuration will be described using the flowchart shown in FIG.

  First, in step S101, the session management unit 405 constantly monitors the presence / absence of reception of a browsing request signal transmitted from the monitor terminal 300 via the network N2 by the communication I / F 402.

  When the browsing request signal is received (step S101: YES), the session management unit 405 refers to the stored content of the video distribution management table 4051 in FIG. 2 in step S102, and a session corresponding to the received browsing request signal is found. Determine if it is already open or a new session.

  If the session corresponding to the received browsing request signal has already been opened (step S102: NO), the process returns to step S101, and if the session corresponding to the received browsing request signal is a new session (step S102: YES), step In S103, a session open process is performed with the supervisor terminal 300 that has received the browsing request signal.

  In step S104, since the session management unit 405 has opened a new session, information related to the session (unique session ID, session open “SET”, user ID, camera ID, terminal type) is stored in the video distribution management table 4051. The video distribution information of FIG. 3 is generated and notified to the browsing state alarm generation unit 406 while being stored.

  Next, in step S105, the session management unit 405 outputs a video distribution request signal to the video output unit 409 in order to respond to the received browsing request signal, and the video output unit 409 via the communication I / F 402 and the network N2 The monitoring video is distributed to the supervisor terminal 300 that has requested browsing.

  When the browsing request signal is not received (step S101: NO), the session management unit 405 refers to the stored contents of all sessions in the video distribution management table 4051 in FIG. It is determined whether or not there is a session to be closed. In this case, as a determination criterion, for example, a session that has not been used for a preset specified time is determined as a session to be closed.

  When the session management unit 405 determines that there is no session to be closed among the opened sessions (step S106: NO), the session management unit 405 returns to step S101, and there is a session to be closed among the opened sessions. If it is determined (step S106: YES), in step S107, a session closing process for closing the session is executed.

  In step S108, since the session is closed, the session management unit 405 stores the information “DEL” regarding the session close in the video distribution management table 4051 and generates the video distribution information of FIG. 3 regarding the session close. Notify the browsing state alarm generation unit 406.

  Next, in step S109, the session management unit 405 outputs a video distribution end signal to the video output unit 409 to end the distribution of the monitoring video whose session is closed, and the supervisor terminal 300 whose session is closed by the video output unit 409. Stop distribution of surveillance video to

  Next, the operation of the browsing state alarm generation unit 406 in the monitoring video management apparatus 400 will be described using the flowchart shown in FIG.

  The browsing state alarm generation unit 406 first initializes the stored contents of the browsing state management table 4061 of FIG. 4 in step S201, and then receives the video distribution information notified from the session management unit 405 in step S202.

  Next, in step S203, the browsing state alarm generation unit 406 executes update processing of the browsing state management table 4061 in FIG. 4, browsing state check processing, and state change list generation processing based on the received video distribution information. .

  Details of the update process, the browsing state check process, and the state change list generation process will be described with reference to the flowchart of FIG.

  In step S301, the browsing state alarm generation unit 406 first adds or deletes a user ID to the browsing state management table 4061 of FIG. 4 based on the user ID set in the received video distribution information. .

  In this case, when the session state of the video distribution information is “open: SET”, since a new session has been opened, the user ID is added to the user ID list of the browsing state management table 4061, and the session state of the video distribution information is In the case of “Close: DEL”, the existing session is closed, so the corresponding user ID is deleted from the user ID list of the browsing state management table 4061.

  Next, the browsing state alarm generation unit 406 designates one of the plurality of camera IDs set in the received video distribution information in step S302, and the corresponding camera stored in the browsing state management table 4061 in step S303. The value (normal / abnormal) of the ID status flag is stored in a memory area (not shown) other than the browsing status management table 4061.

  Next, when a user ID is added in step S301 in step S304, the browsing state alarm generation unit 406 increments (adds) the number of browsing users of the corresponding camera ID stored in the browsing state management table 4061. When the user ID is deleted in S301, the number of browsing users of the corresponding camera ID is decremented (subtracted).

  Next, in step S305, the browsing state alarm generation unit 406 stores the browsing state management information of the camera ID being specified stored in the browsing state management table 4061 in FIG. 4 and the monitoring condition information table 4063 in FIG. The monitoring condition information of the corresponding camera ID is compared, and for example, when any of the following conditions is not satisfied, it is determined that there is an abnormality.

  First, the number of browsing users in the browsing state management table is smaller than the number of constantly monitored persons in the monitoring condition information. Second, among the browsing users in the browsing state management table, the highest supervisor level is lower than the supervisor level lower limit of the monitoring condition information. However, the monitoring user's level is acquired from user information stored in association with the user ID.

  Third, among the browsing users in the browsing state management table, the highest supervisor terminal type is lower than the supervisor terminal lower limit. However, it is assumed that the monitoring user terminal type of the browsing user is acquired by referring to both the browsing state management table 4061 in FIG. 4 and the browsing environment management table 4062 in FIG.

  If it is determined that the browsing state of the camera ID designated by this condition comparison is abnormal (step S305: YES), the status flag of the corresponding camera ID in the browsing state management table 4061 is set to “abnormal” (step S306). When it is determined that the browsing state of the designated camera ID is normal (step S305: NO), the state flag of the corresponding camera ID in the browsing state management table 4061 is set to “normal” (step S307).

  Next, in step S308, the browsing state alarm generation unit 406 compares the current state flag set in the browsing state management table 4061 with the state flag stored in another memory area in step S303, and the state is changed. It is determined whether or not there is.

  If there is a state change (step S308: YES), and if the state flag changes from “normal” to “abnormal”, the abnormal state start time is set as the abnormal state of the corresponding camera ID in the browsing state management table 4061 in step S309. If the status changes from “abnormal” to “normal”, the abnormal status start time is acquired from the abnormal status start time column of the corresponding camera ID in the browsing status management table 4061. The current time is stored as the abnormal condition end time.

  Further, in step S309, the browsing state alarm generation unit 406 adds a camera ID, a current browsing state (the number of browsing users, a browsing user ID) together with information indicating a state change of “normal” → “abnormal” in a state change list (not shown). List) or a camera ID, an abnormal state start time, and an abnormal state end time together with information indicating a state change of “abnormal” → “normal”.

  If there is no state change (step S308: NO), the process returns to step S302, the next camera ID is designated, the processes of steps S303 to S309 are executed again, and the camera set in the video distribution information is set. These processes are repeatedly executed until all the IDs are designated.

  Subsequently, returning to step S204 in FIG. 8, the browsing state alarm generation unit 406 determines whether or not a camera ID in which information indicating a state change of “normal” → “abnormal” is registered in the state change list. Determine. If registered (step S204: YES), in step S205, the alarm transmission unit 404 is notified of the browsing state alarm information as a process when an abnormality occurs.

  If not registered (step S204: NO), in step S206, it is determined whether or not a camera ID in which information indicating a state change of “abnormal” → “normal” is registered in the state change list. Determine. If registered (step S206: YES), in step S207, the alarm transmission unit 404 is notified of the browsing state alarm recovery information as a recovery process.

  When the browsing state alarm information indicating the occurrence of abnormality or the browsing state alarm recovery information indicating the recovery is input from the browsing state alarm generation unit 406 in step S207, the alarm transmission unit 404 designates the browsing state alarm information in advance. The process of notifying the registered administrator, on / off control of an external device, and the like are executed.

  If the camera ID in which information indicating the state change of “abnormal” → “normal” is registered is not registered (step S206: NO), the process returns to step S202, and the video distribution information is received from the session management unit 405. Run the check.

  As described above, according to the monitoring system of the present embodiment, the monitoring video management device 400 monitors the session state of the monitoring video transmitted from the monitoring device 200 and the browsing state on the supervisor terminal 300, and sets in advance. Based on the monitored conditions, it is determined whether the viewing state of the monitoring video on the supervisor terminal 300 is normal or abnormal, and when it is determined to be abnormal, the browsing state alarm information is notified to the administrator. Measures can be taken immediately for unmonitored bases and monitoring devices where an abnormality has occurred.

  Accordingly, it is possible to prevent the monitoring level from being lowered in the supervisor terminal 300, and to improve the reliability of the monitoring system.

  In the above embodiment, in the flowchart shown in FIG. 7 as the operation of the session management unit 405, the session closing process is performed by determining the presence of a session that has not been used for a preset specified time from among the opened sessions. However, it is also possible to transmit a message periodically confirming browsing from the monitoring video management device 400 to the supervisor terminal 300 and manage the browsing status based on the response result.

  The processing in this case will be described with reference to the flowchart shown in FIG. In the flowchart of FIG. 10, the same steps as those in the flowchart shown in FIG.

  When the browsing request signal is not received (step S101: NO), the session management unit 405 transmits a confirmation message for confirming the browsing state in each supervisor terminal 300 from the communication I / F 402 via the network N2 in step S401. It transmits to each supervisor terminal 300.

  Next, in step S402, the session management unit 405 determines whether or not a response message transmitted from each supervisor terminal 300 with respect to the transmitted confirmation message has been received. If a response message has been received (step S402: YES), the process returns to step S101.

  If no response message has been received (step S402: NO), the session management unit 405 waits for the reception of the response message in step S403. Confirm.

  If the predetermined time T has not elapsed (step S403: NO), the process returns to step S402 to check whether or not a reply message has been received. If the predetermined time T has elapsed (step S403: YES), step S107 is performed. Move to the session close process.

  Through the above processing, the monitoring video management apparatus 400 can actively check the browsing state with respect to each supervisor terminal 300.

  Next, an operation of starting or stopping monitoring video recording by the monitoring apparatus 200 in response to occurrence or recovery of browsing abnormality will be described with reference to the system configuration diagram shown in FIG.

  In FIG. 11, when a browsing abnormality occurs, the browsing state alarm information generation operation and the browsing abnormality start time / end time management operation in the browsing state alarm generation unit 406 are described in the flowcharts of FIGS. 8 and 9. Street.

  Further, when a browsing abnormality occurs, the browsing state alarm generation unit 406 outputs a monitoring video recording start signal to the video storage unit 408 in order to start recording the monitoring video transmitted from the monitoring device 200 that is the target.

  In addition, the browsing state alarm generation unit 406 outputs a monitoring video recording stop signal to the video storage unit 408 in order to stop the recording of the monitoring video transmitted from the target monitoring device 200 when the browsing abnormality is recovered.

  Then, the video storage unit 408 controls recording of the monitoring video input from the video input unit 407 in accordance with the recording start signal and the recording stop signal input from the browsing state alarm generation unit 406.

  As described above, the monitoring video of the monitoring apparatus 200 in which the browsing abnormality has occurred is accumulated in the monitoring video management apparatus 400, so that when the monitoring terminal 300 recovers from the browsing abnormality, the browsing abnormality has occurred. The accumulated monitoring video can be transmitted again, and the monitoring terminal 300 can prevent the monitoring video from being missed during the browsing abnormality occurrence period.

  In addition, in step S205 of FIG. 8 described above, when the alarm transmission unit 404 is notified of the browsing state alarm information as the abnormality occurrence process, the browsing state alarm generation unit 406 has detected a browsing abnormality from the browsing state management table 4061. It is also possible to acquire user ID lists of all other browsing users who are not present and transmit the user ID lists to the alarm transmission unit 404 as well.

  Based on the user ID list received from the browsing state alarm generation unit 406, the alarm transmission unit 404 transmits the browsing state alarm information to all the supervisor terminals 300 in which the browsing state is normal.

  In this way, when a browsing abnormality occurs, by notifying all normal supervisor terminals 300 of the browsing status alarm information, it is possible to take immediate recovery measures without leaving the browsing abnormality, Reliability can be improved.

  Next, when a browsing abnormality occurs, the settings of the imaging functions of the cameras 201 and 202 and the detection functions of the sensors 203 and 204 of the monitoring device 200 are changed, or the imaging functions of the cameras 201 and 202 and the detection of the sensors 203 and 204 are detected. The operation when the function is activated will be described with reference to the system configuration diagram shown in FIG.

  In FIG. 12, when a browsing abnormality occurs, the browsing state alarm information generation operation and the browsing abnormality start time / end time management operation in the browsing state alarm generation unit 406 are described in the flowcharts of FIGS. Street.

  Further, the browsing state alarm generation unit 406 transmits the camera ID of the monitoring apparatus 200 in which the browsing abnormality has occurred to the alarm management unit 403 when a browsing abnormality has occurred. The alarm management unit 403 recognizes the monitoring device 200 in which the camera is installed based on the camera ID received from the browsing state alarm generation unit 406, and the imaging functions and sensors of the cameras 201 and 202 installed in the monitoring device 200. In order to increase the detection function settings of 203 and 204, or to activate the imaging functions of the cameras 201 and 202 and the detection functions of the sensors 203 and 204, a function change signal or a function activation signal is transmitted to the communication I / F 401. The data is transmitted from the communication I / F 401 to the corresponding monitoring device 200 via the network N1.

  The monitoring device 200 changes the settings of the imaging functions of the cameras 201 and 202 and the detection functions of the sensors 203 and 204 based on the function change signal or the function activation signal received from the monitoring video management device 400 (the imaging image quality is improved or detected). The sensitivity is increased, or the imaging function of the cameras 201 and 202 and the detection function of the sensors 203 and 204 are activated.

  In addition, when a browsing abnormality occurs, the browsing state alarm generation unit 406 transmits the camera ID of the monitoring device 200 in which the browsing abnormality has occurred to the video input unit 407. In response to the camera ID received from the browsing state alarm generation unit 406, the video input unit 407 activates a person recognition processing program or the like for the monitoring video received from the monitoring device 200 in which the browsing abnormality has occurred, and the person The recognition result is output to the video storage unit 408.

  While the browsing abnormality is occurring, the setting of the imaging function of the cameras 201 and 202 and the detection function of the sensors 203 and 204 are changed and monitored, and the monitoring video recognition process is continued.

  For example, specifically, the browsing state alarm generation unit 406 performs the following processing on the alarm management unit 403 when detecting the occurrence of a browsing abnormality.

(1) Activate a sensor for a camera in an abnormal browsing state.
(2) Increasing the detection sensitivity of the sensor for a camera in an abnormal browsing state.
(3) Setting is made so as to enhance the security effect of other equipment (close the door, close the lock, turn on the fluorescent lamp, etc.) existing near the camera in an abnormal browsing state.
(4) Change the image quality setting of the camera in the abnormal browsing state to the high image quality setting.
(5) Change the camera orientation, zoom setting, etc. so as to expand the shooting range of the camera of the monitoring device that is present near the camera in the abnormal browsing state and in the normal browsing state.

  In addition, when the browsing state alarm generation unit 406 detects the occurrence of a browsing abnormality, the browsing state alarm generation unit 406 performs the following processing on the video input unit 407.

(1) The monitoring video of the camera in an abnormal browsing state is subjected to person detection / recognition processing, and the processing result is output to the video storage unit 408 and the video output unit 409.
(2) A person's detection / recognition processing is performed on the monitoring video of a camera in a browsing abnormal state, and face information of a person who has passed through the browsing abnormal section is accumulated.

  As described above, when an abnormality occurs in the browsing state, monitoring is performed by changing the settings of the imaging functions of the cameras 201 and 202 and the detection functions of the sensors 203 and 204, and executing the monitoring video recognition process. It is possible to easily extract the monitoring target in the supervisor terminal 300 when the abnormality is recovered, and to improve the reliability of the monitoring system.

  Next, with respect to the monitoring device 200 in the abnormal browsing state, the monitoring terminal 200 that has transmitted a browsing request signal for changing the browsing state to the normal state is displayed together with the current monitoring video and the stored video at the occurrence of the abnormal state. The operation to be distributed to the person terminal 300 will be described with reference to the system configuration diagram shown in FIG.

  In FIG. 13, when an abnormality occurs in the browsing state, the operation of notifying the video distribution information to the browsing state alarm generation unit 406 by the session management unit 405 shown in (1) in the figure is described in the flowchart of FIG. Street.

  Further, when a browsing abnormality occurs, the browsing state alarm information generation operation and the browsing abnormality start time / end time management operation in the browsing state alarm generation unit 406 are as described in the flowcharts of FIGS. is there.

  Furthermore, as indicated by (2) in the figure, the browsing state alarm generation unit 406 transmits the browsing state alarm recovery information to the session management unit 405 when detecting the presence of the monitoring device 200 recovered from the browsing abnormality. Execute. In this case, the information to be transmitted includes a video distribution addition request, a session ID, a camera ID, a user ID, and a browsing abnormality start time-end time.

  When the session management unit 405 receives the video distribution addition request from the browsing state alarm recovery information transmitted from the browsing state alarm generation unit 406, the session management unit 405 indicates to the video output unit 409 as indicated by (3) in the figure. Along with the browsing request for the current monitoring video of the camera designated by the supervisor terminal 300, the reproduction distribution request for the stored video stored in the video storage unit 408 at the abnormal browsing start / end time as shown in FIG. 11 is transmitted. To do.

  Upon receiving the video distribution addition request and the reproduction distribution request from the session management unit 405, the video output unit 409 transmits the current monitoring video input from the video input unit 407 to the communication I / F 402 and from the video storage unit 408. The stored video stored at the browsing abnormal start time / end time is read and played, the playback video is transmitted to the communication I / F 402, and the supervisor terminal that has requested browsing from the communication I / F 402 via the network N2 The current monitoring video and stored reproduction video are transmitted to 300.

  In this way, when the browsing abnormality is recovered and a browsing request is received from the supervisor terminal 300, the stored reproduction video accumulated during the browsing abnormality occurrence period is distributed together with the current monitoring video, so that the browsing abnormality is recovered. It is possible to avoid a situation where the monitoring terminal 300 misses the accumulated video to be monitored, and the reliability of the monitoring system can be improved.

  Hereinafter, a specific application example of the monitoring system 100 of the first embodiment will be described with reference to FIGS. 14 and 15.

  FIG. 14 is a diagram illustrating the overall configuration of a store monitoring system. In this monitoring system, there is a corporate body consisting of stores A to D such as ATMs, banks, and convenience stores located in the area A, and the monitoring cameras A to D and H to K installed in the stores A to D The monitoring video management device 400 that manages the distribution status of the monitoring video transmitted from the cameras A to D and H to K for each store A to D, and each store A that distributes the monitoring video from the monitoring video management device 400 The monitor terminal 300 having the person in charge of D and the monitor terminal 300 having the area A manager who patrols the representative cameras and the like of the stores A to D are configured.

  In this case, as a monitoring system, each store A to D person in charge browses the monitoring images of the stores A to D that he is in charge of, and the area manager A selects each monitoring image of each store A to D according to the situation. It is assumed that the surveillance video of the cameras A to D and H to K installed in the stores A to D must normally be monitored by one or more people.

  Hereinafter, the management procedure of the monitoring video in this monitoring system will be described.

  First, when each store A to D person in charge starts browsing the monitoring video of each store A to D, the monitoring terminal 300 accesses the monitoring video management device 400 and transmits a browsing request signal. In response to the browsing request signal transmitted from the supervisor terminal 300, the surveillance video management apparatus 400 opens a new session and transmits a preparation completion message to the supervisor terminal 300.

  When the supervisor terminal 300 receives a preparation completion message from the monitoring video management device 400, the monitoring terminal 300 transmits a video acquisition request to the monitoring video management device 400 at regular intervals. Upon receiving a video acquisition request from the supervisor terminal 300, the supervisory video management apparatus 400 delivers the supervisory video to the supervisor terminal 300.

  The monitoring video management device 400 transmits a browsing confirmation message to the supervisor terminal 300 together with the latest monitoring video at regular time intervals. For example, the browsing confirmation message is a request for a click operation or a keyboard input with the mouse in the supervisor terminal 300. When there is an input on the supervisor terminal 300, the input information is monitored video management as a response message to the browsing confirmation message. The device 400 is notified.

  The monitoring video management apparatus 400 monitors whether or not a response message has been received from the supervisor terminal 300 for each session, and closes the session when there is no video acquisition request or response to the browsing confirmation message for a certain period of time.

  The monitoring video management apparatus 400 continues to distribute the monitoring video until the session is closed while repeating the above processing. When the session is opened / closed, the monitoring video management apparatus 400 updates the video distribution management table 4051 for managing the video distribution status of the monitoring video and the browsing status management table 4061 for managing the browsing status, so that the non-monitoring status is obtained. Check for occurrences of monitoring errors.

  Next, specific operations will be described based on the situations (1) to (4) shown in FIG.

  In situation (1), the store C, D person in charge has left the viewing seat of the supervisor terminal 300 and has not returned for a certain period of time (for example, the person in charge has fallen asleep and sees the confirmation message) Etc.).

  In the situation (2), the monitoring video management apparatus 400 closes the session because there is no response from the supervisor terminal 300 of the person in charge of the stores C and D.

  In the situation (3), since the monitoring video management apparatus 400 has closed the session, the video distribution management table 4051 is updated, and the cameras H, I, J and K are detected.

  In the situation (4), the monitoring video management apparatus 400 determines that the non-monitoring state has been detected as a browsing abnormality, and notifies the monitoring abnormality alarm to the monitoring terminals 300 of the stores A to D and the area A manager. To do.

  The corresponding operation of each supervisor terminal 300 in response to the notification of the abnormal browsing alarm will be described with reference to FIG.

  In the response (1) of FIG. 15, upon receiving the notification of the abnormal viewing alarm, the area A manager contacts the office of the store C or D person in charge of the mobile phone or the monitor terminal 300 and browses it. Check the current status of the abnormality.

  Next, in response (2), the monitoring video management device 400 has the monitoring terminals of the person in charge of the store A and the person in charge of the store B who are currently viewing the monitoring video for the cameras H, I, J, and K in the non-monitoring state. Request substitution monitoring to 300.

  When the store A person in charge receives the substitute monitoring request, the shop A person in charge starts the substitute monitoring of the cameras H and I in the store C. To start. And the store A person in charge and the store B person in charge keep store C and D in a non-monitoring state by continuing substitution monitoring until the person in charge of store C and D returns to normal monitoring, and the security level is It can be prevented from lowering.

  Next, in response (3), the monitoring video management apparatus 400 starts recording the monitoring video of the cameras H, I, J, and K that are in the non-monitoring state.

  As described above, in this embodiment, functions of (1) to (3) are managed as a monitoring auxiliary function that manages the browsing state of the store clerk and responds to changes in the browsing state (normal → abnormal, abnormal → normal). By appropriately executing the above, it is possible to quickly detect the occurrence of browsing abnormalities and take action, and to keep the monitoring system safe, such as preventing oversight of suspicious persons during the unmonitored state. it can.

(Embodiment 2)
16 and 17 are diagrams showing a system configuration of the monitoring system 100 according to the second embodiment of the present invention, and have the same configuration as the monitoring system 100 shown in FIG. The description of the configuration is omitted.

  A feature of the present embodiment is that information on who the monitoring video is distributed to is managed, and the information is stored in addition to the monitoring video to be stored, or the stored monitoring video is reproduced / linked. When searching, it is easy to search the accumulated monitoring video according to the designation of the number of browsing users, the browsing users, the browsing state, and the like at the time of monitoring.

  In addition, it manages the information about who the monitor video is distributed to, and records it in addition to the monitor video that accumulates it, or by linking it, it is in the unsupervised state when playing back the accumulated monitor video It is possible to play a video preferentially.

  FIG. 17 is a diagram illustrating a configuration example of storage management information 500 that is stored in the video storage unit 408 and is information for managing the viewing state and the storage state of the monitoring video for each camera of the monitoring apparatus 200.

  In the storage management information 500, for each of the cameras Cam1 and Cam2, the video group ID of the monitoring video, its frame number, the storage time, the storage file name, the browsing state, the number of browsing users, and the browsing user ID are displayed. Manage in association.

  The session management unit 405 in the monitoring video management apparatus 400 updates the video distribution information stored in the video distribution management table 4051 of FIG. 2 according to the browsing state confirmed for each camera, as in the first embodiment. The updated video distribution information is output to the browsing state alarm generation unit 406.

  Similarly to the first embodiment, the browsing state alarm generation unit 406 acquires video distribution information from the session management unit 405 at any time, and browses each monitoring device 200 and each monitor terminal 300 based on the acquired video distribution information. Manage state.

  Also, the browsing state alarm generation unit 406 responds to the browsing information request transmitted from the video storage unit 408, and displays the current browsing state management information (camera ID, number of browsing users, user ID) from the browsing state management table 4061 of FIG. The list and the browsing state “normal / abnormal”) are read out and transmitted to the video storage unit 408.

  The video storage unit 408 transmits a video information request to the browsing state alarm generation unit 406 at regular time intervals when the monitoring video is stored, and acquires the current browsing state management information from the browsing state alarm generation unit 406. Then, the storage management information 500 of FIG. 17 is generated and added to the monitoring video and stored.

  Assume that the supervisor terminal 300 in which a browsing abnormality has occurred is restored and the monitoring video management apparatus 400 receives a browsing request from the supervisor terminal 300.

  In this case, the video storage unit 408 in the monitoring video management apparatus 400 is not monitored by the restored supervisor terminal 300, that is, the stored video whose browsing state is “abnormal” in the storage management information 500 is connected and played back. To do. Further, in this case, the stored management information 500 may be played back by connecting stored videos having a certain number of browsing users or less.

  In addition, the video storage unit 408 executes, for example, the following video playback processing when playing back video that has been in a non-monitoring state at the time of playback of the stored video.

  A frame thinning process (slow), a playback double speed process (fast forward), a process for increasing the utilization when creating a digest video of a monitoring video, and the like are executed. Specifically, these video reproduction processes are executed in the following cases.

  When the number of browsing users is small, the slow reproduction process is performed. When the number of browsing users is large, the fast forward reproduction process is performed.

  When the viewing terminal has the highest performance of a mobile terminal (PDA, mobile phone, etc.), a slow playback process is executed. When a personal computer is used, a fast-forward playback process or a playback process with frame skipping is executed.

  The monitoring video that has been browsed by the browsing user is fast-forwarded and the monitoring video that has not been browsed is played at normal speed.

  When creating a digest video of a surveillance video, the surveillance video with an abnormal browsing state is preferentially used.

  As described above, the storage management information 500 is added to the stored monitoring video, and the playback method of the stored monitoring video can be appropriately selected based on the storage management information 500 at the time of playback. The work efficiency in the reproduction confirmation processing can be improved, and the access efficiency to the accumulated monitoring video can be improved.

  Hereinafter, specific application examples of the monitoring system 100 according to the second embodiment will be described with reference to FIGS. 18 and 19.

  FIG. 18 is a diagram illustrating the overall configuration of the monitoring system. In this monitoring system, a plurality of monitoring cameras (stores B and C are not shown) are installed for each of the stores A to C, and the monitoring video of each store A to C is accumulated in the monitoring video management device 400, and the monitoring video management is performed. A configuration is adopted in which the monitoring video accumulated in the device 400 is distributed to the supervisor terminal 300 or the security company of the general manager.

  In this case, the store managers and general managers of the stores A to C sometimes browse the monitoring video in real time at the office or home, and ask the security company to browse the monitoring video in real time at night. .

  In this monitoring system, the real-time browsing state of the monitoring video for one day stored in the monitoring video management apparatus 400 and the reproduction processing of the stored video corresponding to the real-time browsing state will be described with reference to FIG.

  In this case, the security company will be browsing in real time from 0 am to 8:00 am, the store manager will be browsing in real time from 8 am to 12:00 am, and the time when the monitor is not specified is in the afternoon From 12:00 to 20:00, it is shown that the time zone that the employee browses in real time is from 20:00 to 24:00.

  Assuming that the request of the general manager is to reproduce the accumulated video for one day and confirm the suspicious person, the accumulated video reproduction processing in the monitoring video management device 400 according to the real-time browsing state is, for example, the highest in the figure. It can be executed as shown in the lower part.

  During the time period when the security company browsed in real time, the stored video is played back at 5X speed, the stored video viewed by the store manager in real time is excluded from playback, and during the time period when the supervisor is not specified, the stored video is played back at constant speed. The first half of the time period for employees to browse in real time plays the stored video at double speed, and the second half plays the stored video at 5 times speed.

  As described above, in the present embodiment, since the method of reproducing the surveillance video accumulated according to the real-time browsing state is changed, the surveillance video accumulated efficiently can be confirmed.

  The monitoring video management apparatus and the monitoring video management method according to the present invention provide a session state in which a browsing state in a supervisor terminal that browses a monitoring video from a monitored base is set between the monitored base and the supervisor terminal. Management based on video distribution information generated from the network, and detecting an unmonitored state such as the absence of a non-monitoring base or a monitor to enable execution of alarm notification, monitoring video recording control, and the like.

The figure which shows the system configuration | structure of the monitoring system which concerns on Embodiment 1 of this invention. The figure which shows the structure of the video delivery management table memorize | stored in the session management part of the surveillance video management apparatus concerning Embodiment 1. FIG. The figure which shows the structure of the video delivery information which concerns on Embodiment 1. FIG. The figure which shows the structure of the browsing state management table memorize | stored in the browsing state alarm production | generation part of the monitoring video management apparatus which concerns on Embodiment 1. FIG. The figure which shows the structure of the browsing environment management table memorize | stored in the browsing condition alarm production | generation part of the monitoring video management apparatus concerning Embodiment 1. FIG. The figure which shows the structure of the monitoring condition information table memorize | stored in the browsing condition alarm production | generation part of the monitoring video management apparatus concerning Embodiment 1. FIG. Flowchart for explaining the operation of the session management unit of the surveillance video management apparatus according to the first embodiment Flowchart for explaining the operation of the browsing state alarm generation unit of the surveillance video management apparatus according to Embodiment 1 The flowchart for demonstrating the detail of the update process of the browsing condition alarm production | generation part of the monitoring video management apparatus concerning Embodiment 1, a check process, and a production | generation process Flowchart for explaining the operation of the browsing state alarm generation unit of the surveillance video management apparatus according to Embodiment 1 In the monitoring video management apparatus according to the first embodiment, a system configuration diagram showing an operation when starting or stopping recording of a monitoring video of the monitoring apparatus in response to occurrence or recovery of a browsing abnormality In the monitoring video management device according to the first embodiment, a system configuration diagram illustrating an operation when a browsing abnormality occurs and the setting level of the sensor of the monitoring device is changed or the sensor is activated The system block diagram which shows the operation | movement in the monitoring video management apparatus which concerns on Embodiment 1 when the accumulation | storage video | video at the time of abnormal condition is delivered to a supervisor terminal with the current monitoring video | video. The figure which shows the whole structure of the monitoring system for stores which concerns on Example 1. FIG. The system block diagram which shows the corresponding | compatible operation | movement according to the browsing abnormal alarm notification of each supervisor terminal which concerns on Example 1. FIG. The figure which shows the system configuration | structure of the monitoring system which concerns on Example 2. FIG. The figure which shows the structure of the accumulation | storage management information memorize | stored in the image | video accumulation | storage part of the monitoring image management apparatus which concerns on Example 2. FIG. The figure which shows the whole structure of the monitoring system which concerns on Example 2. FIG. The figure which shows the real-time monitoring condition of the accumulation | storage video of the day in the monitoring system which concerns on Example 2, and the reproduction | regeneration processing of the accumulation | storage video according to the real-time monitoring condition

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Monitoring system 200 Monitoring apparatus 201,202 Camera 203,204 Sensor 300 Supervisor terminal 400 Monitoring video management apparatus 401,402 Communication I / F
403 Alarm management unit 404 Alarm transmission unit 405 Session management unit 406 Browsing state alarm generation unit 407 Video input unit 408 Video storage unit 409 Video output unit 4051 Video distribution management table 4061 Browsing state management table 4062 Browsing environment management table 4063 Monitoring condition information table

Claims (9)

A surveillance video management device for managing surveillance video,
A monitoring device for capturing a monitoring image;
A session management unit that generates and manages video distribution information from the state of a session that is set with a supervisor terminal that views the monitoring video;
From the video distribution information, a browsing state alarm generating unit that determines a browsing state of the supervisor terminal and generates an alarm indicating the browsing state of the monitoring video;
A surveillance video management device comprising:   The session management unit includes at least information on open / close of the session, a session ID that identifies the session, a user ID of a user of a monitor terminal that has established the session, and a monitoring video distributed by the session The monitoring video management apparatus according to claim 1, wherein video distribution information is generated and managed from a camera ID of a monitoring apparatus that captures images and browsing environment information of the user.   The browsing state alarm generation unit compares the video distribution information with browsing state management information obtained from the video distribution information and determines whether the browsing state matches a predetermined condition. The surveillance video management apparatus according to claim 1. The browsing state alarm generation unit
Corresponding to the number of browsing users, a list of user IDs, a status flag indicating that the browsing state matches a predetermined condition, and a time when it is determined that the imaging device ID does not match the condition A browsing state management table to be attached and managed,
A browsing environment management table for managing the terminal type of the supervisor terminal for each user ID,
A monitoring condition information table for managing the required number of constantly monitoring personnel, the monitoring level of the monitoring device, and the monitoring function level of the monitoring device terminal for each imaging device ID;
The surveillance video management apparatus according to claim 3, further comprising: A video storage unit for storing the monitoring video;
The monitoring video management apparatus according to claim 1, wherein the browsing status alarm generation unit stores the monitoring video in the video storage unit in association with the browsing status alarm. A video storage unit for storing the monitoring video;
The monitoring video management apparatus according to claim 1, wherein the browsing status alarm generation unit stores the monitoring video in the video storage unit while the browsing status alarm is generated.   The monitoring video management apparatus according to claim 1, further comprising an alarm transmission unit that sends a proxy monitoring message to another user when a browsing state alarm is generated by the browsing state alarm generation unit.   The monitoring video management device according to claim 1, wherein the browsing status alarm generation unit increases the sensitivity of an imaging device that captures the monitoring video in which the browsing status alarm is generated. A surveillance video management method in a surveillance video management device for managing surveillance video,
Session management step for managing video distribution information from the monitoring video from the monitoring device and the state of the session with the supervisor terminal;
From the video distribution information, a browsing state alarm generation step of generating an alarm indicating the browsing state of the monitoring video by judging the browsing state of the supervisor terminal;
A surveillance video management method comprising:

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