JP2010103782A - Monitoring camera system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically display, write and record important video images even when a plurality of events occur simultaneously. <P>SOLUTION: The monitoring camera system includes: a plurality of monitoring cameras 1-1 to 1-n; a video recorder 3 for writing and storing video information; a video display device 6 for displaying video images; a memory table wherein event information, level information corresponding to the occurrence degree of the event and weight information for the plurality of monitoring cameras are stored in correspondence for the plurality of events; a calculation means for calculating the priority information of the plurality of monitoring cameras using the reported event information, its level and the information in the memory table; and a control means for executing the control of writing and recording the video information in the video recorder 3 and also the control of displaying the video images at the video display device 6 on the basis of the calculated priority information of the respective monitoring cameras. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a surveillance camera system that performs surveillance by a plurality of surveillance cameras. More specifically, a camera that preferentially displays or writes video is determined based on an event that has occurred and its level. The present invention relates to a surveillance camera system that displays and records various images.

  In a conventional surveillance camera system, an operator determines a video to be written and recorded, and selects a desired camera from a plurality of cameras and displays the video on a display monitor. In this system, in the event of a disaster or the like, an image of the location is displayed later, and the post-disaster image information is also left in the written record.

On the other hand, an event is detected using a sensor and a recorded video is left, and video information is stored immediately after the occurrence of the event (see Patent Document 1). However, if multiple events occur at approximately the same time, select one of the multiple cameras and write and record video information obtained by the camera, or the video Appropriate processing has not been performed as to whether or not the video display based on the information should be displayed on the display device, and the system has not necessarily been able to cope with the occurrence of a disaster or the like.
JP 2005-56191 A

  The present invention has been made in view of the current situation of the surveillance camera system as described above, and its purpose is to automatically perform important video display and write / record control even when a plurality of events occur. It is another object of the present invention to provide a surveillance camera system that can prevent the occurrence of a situation that is not suitable as a surveillance system, such as that a necessary video does not remain or an important video is not displayed.

  The present invention includes a plurality of surveillance cameras for capturing video information to obtain video information, video recording means for writing and recording video information, video display means for displaying video based on video information, For an event, a memory table in which event information, level information corresponding to the degree of occurrence of the event, and weight information for the plurality of monitoring cameras are stored in association with each other, and notification of the event information that has occurred and its level And calculating means for calculating priority information of the plurality of monitoring cameras using the notified event information, the level thereof, and the information in the memory table, and each monitoring camera calculated by the calculation means. Based on the priority information, the video information obtained by the corresponding camera is written and recorded in the video recording means, and the video information obtained by the corresponding camera is recorded. The characterized by comprising a control means for controlling display on the video display means.

  In the present invention, the generated event information notified to the calculation means and its level, the monitoring camera calculated by the calculation means and the priority information thereof are set in the list information according to the occurrence time of the event, Search table creation means for storing as a search table in association with a recording destination address of the corresponding video information in the video recording means, and input means for inputting an instruction to display the information of the search table on the video display means The control means displays the information of the search table on the video display means when an instruction is input by the input means, and receives an instruction for the monitoring camera in the displayed information by the camera. The video information written and recorded in the video recording means is read, and the video based on the video information is displayed on the video display means. Characterized in that it.

  The present invention is characterized in that means for enabling writing recording after a predetermined time before the occurrence of an event is provided in writing and recording video information to the video recording means.

  In the present invention, when the control means performs control to display the video based on the video information on the video display means based on the priority information of each monitoring camera calculated by the calculation means, the control means already has the video display means. Display control by pop-up display or display control by interrupt display is performed on the displayed video.

  In the present invention, for a plurality of events, there is provided a memory table in which event information, level information corresponding to the degree of occurrence of the event, and weight information for the plurality of monitoring cameras are stored in association with each other. The received event information and its level are notified, and the priority information of the plurality of monitoring cameras is calculated using the notified event information, the level and the information in the memory table, and the calculated monitoring information Based on the priority information of the camera, the video information obtained by the corresponding camera is written and recorded in the video recording means, and the video based on the video information obtained by the corresponding camera is controlled to be displayed on the video display means. An image can be left and an important image can be displayed, and appropriate monitoring can be performed.

  In the present invention, the generated event information notified to the calculation means and the level thereof, the monitoring camera calculated by the calculation means and the priority information thereof are set in the list information according to the occurrence time of the event. , Provided with a search table creating means for storing as a search table in association with the storage address of the corresponding video information in the video recording means, and when the instruction input is made, the information of the search table is displayed on the video display means, In response to an instruction to the monitoring camera in the displayed information, the video information obtained by the camera is read and recorded on the video recording means, and the video based on the video information is displayed on the video display means. There is an effect that it is easy to quickly read out and display necessary information from the recorded video information.

  Further, in the present invention, since means for enabling writing and recording after a predetermined time before the occurrence of the event is provided, video information can be left from a predetermined time before the occurrence of the event.

  Also, in the present invention, when performing control to display video based on video information, display control by pop-up display or display control by interrupt display is performed on the video already displayed on the video display means. Necessary images are automatically displayed.

  Hereinafter, a surveillance camera system according to an embodiment of the present invention will be described with reference to the accompanying drawings. In each figure, the same components are denoted by the same reference numerals and redundant description is omitted. In the surveillance camera system according to the embodiment, as shown in FIG. 1, camera devices 1-1 to 1-n that are surveillance cameras are connected to an IP network 2, and a control server 4 and an event output server are connected to the IP network 2. 7 is connected.

  The control server 4 is connected to a video recording device 3, a video display device 6, and an operating device 5. The control server 4, the video recording device 3, the video display device 6, the operation device 5, and the event output server 7 are provided, for example, in one monitoring place.

  The camera apparatuses 1-1 to 1-n capture video images of a monitoring target to obtain video information. The video information is configured to be able to pass through an IP network 2 such as MPEG (Moving Picture Experts Group). 2 is transmitted. The video display device 6 constitutes video display means and is a monitor that displays video based on video information sent from at least one camera device, and can usually display video based on video information sent from a plurality of camera devices. For example, a plurality of units are provided. Further, the video recording device 3 constitutes a video recording means, and is configured to be provided with, for example, a plurality of units so that video information sent from a plurality of camera devices can be written and recorded simultaneously.

  FIG. 2 shows the configuration of the video recording apparatus 3. In this example, the video recording device 3 is composed of a plurality of video recording devices 3-1 to 3 -m, and each has the same configuration for writing and recording video information sent from one camera device. That is, video information is input to the video recording unit 32 via the video delay unit 31, and writing and recording are performed and playback is performed under the control of the recording / reproduction control unit 33 that receives control information given from the control server 4. Is read out, and is output as a video signal in a form in which video can be displayed on the video display device 6 by the video playback unit 34. The video delay unit 31 is means for enabling writing and recording after a predetermined time before the occurrence of an event, and the delay time may be configured to be variable.

  The control server 4 sends turn and zoom instruction information to the camera devices 1-1 to 1-n in accordance with an instruction from the operation device 5, and in addition, in the camera devices 1-1 to 1-n according to an instruction from the operation device 5. The video information transmitted from the video recording device 3 is captured and sent to the video recording device 3 for writing and recording, or the video information is supplied to the video playback unit 34 of the video recording device 3 to display the video on the video display device 6. The video signal is converted into a displayable video signal and sent to the video display device 6 to display the video.

  The event output server 7 is provided with information on the level of events such as earthquakes, rainfall, and wind speed at the installation locations of the camera apparatuses 1-1 to 1-n. In addition, traffic information by a sensor that detects the moving speed of the automobile and accident information from the accident notification device are given. The event output server 7 sends camera device identification information corresponding to the occurred event, its level, and the measured sensor from the IP network 2 to the control server 4. What is shown here is only an example, and it is also possible to use an emergency earthquake bulletin provided by the Japan Meteorological Agency or various weather information.

  The control server 4 is configured as shown in FIG. It is connected to the IP network 2 via the network interface 41 and includes a display video path unit 42, a recording video path unit 43, a memory table 44, an operation unit connection unit 45, and a central control unit 40. The operating device 5 is connected to the operating device connection unit 45 so that it can receive instruction information from the operator.

  Video information obtained by a plurality of camera devices displayed on the video display device 6 under the control of the central control unit 40 is passed through the display video path unit 42, and the central control unit 40 is passed through the recording video path unit 43. Through this control, video information obtained by a plurality of camera devices given to the video recording device 3 for writing and recording is passed.

  The memory table 44 stores event information, level information corresponding to the degree of occurrence of the event, and weight information for the plurality of camera devices in association with each other. Specifically, for example, as shown in FIG. Here, as events, earthquakes, traffic jams, accidents, rainfall / snowfall, and wind speed are shown as examples. Earthquakes are divided into four levels of seismic intensity, rainfall and snowfall are divided into four levels of rainfall and snowfall, and wind speed is divided into three levels of instantaneous wind speed. Correspondingly, weight information is stored. Also, the identification information of each camera and its weight information are stored corresponding to each level or traffic jam and accident event. Here, when the event occurrence location of the information to be provided is given by latitude and longitude, the latitude and longitude of the installation location of the camera device is stored together with the identification information of each camera in the memory table 44. In addition, control information such as turning and zooming is stored corresponding to the corresponding camera device in response to the case where the turning and zooming of the camera device needs to be performed after the occurrence of the event.

  The central control unit 40 is provided with calculation means 51 and control means 52. The calculation means 51 receives notification of the event information that has occurred and its level, and calculates priority information of the plurality of camera devices using the notified event information, its level, and information in the memory table 44. To do. The control unit 52 controls the writing of video information obtained by the corresponding camera to the video recording device 3 which is a video recording unit based on the priority information of the corresponding camera device calculated by the calculating unit 51 and the corresponding camera. The video based on the video information obtained by the above is controlled to be displayed on the video display device 6 as the video display means. This control is the transmission of the video information that passes through the display video path section 42 and the recording video path section 43. This is realized by the control for selecting the element.

  The operation of the surveillance camera system configured as described above will be described with reference to the flowcharts shown in FIGS. The control server 4 monitors the occurrence of an event based on the output of the event output server 7 (S11). When no event occurs, default information preset in the control server 4 or an instruction from the operating device 5 Based on the above, control such as turning and zooming is performed on the corresponding camera device, video information is taken in, written and recorded in the video recording device 3, and video is displayed on the video display device 6 (S12). In this way, control is performed based on information set in advance or based on the operation of a monitor, and video writing / recording and video display are performed.

  If an event occurrence is detected in step S11, it is detected whether camera control is necessary based on information such as the memory table 44 shown in FIG. 4 (S13). In the table of FIG. 4, for example, when an earthquake occurs at a location corresponding to the camera A1, a 30 degree turn to the right is necessary. In this case, in step 14, information for instructing the camera A1 to turn to the right 30 degree. Is transmitted (S14).

  When step S14 is completed or when branching to NO in step S13, the camera priority is calculated from the occurrence event (S15). For example, if an earthquake occurs and the seismic intensity is 5 at the location corresponding to camera A1, the weight of seismic intensity 5 is “9” and the weight of camera A1 is “10”. Thus, the camera priority is “19”. If the seismic intensity is 5 at the same time at the location corresponding to the camera B2, the weight of the seismic intensity 5 is “9” and the weight of the camera B2 is “0”. “9”. As a result, the camera A1 has priority. This calculation is an example, and the weight may be multiplied, or the priority may be controlled by further multiplying an appropriate parameter.

  Following step S15, it is detected whether there is a video display device 6 currently used for display other than the occurrence of an event (S16), and if it is present, display on the corresponding video display device 6 is performed (S17). That is, when there are a plurality of images, a plurality of image display devices 6 are selected in a predetermined order, and images obtained by different cameras are assigned to the selected image display devices 6 and displayed.

  When it is detected in step S16 that all the video display devices 6 are used for displaying the occurrence of an event, the priority of the camera related to the occurrence of a new event and the priority of the camera that captured the displayed video are displayed. Are compared, the camera with the lowest priority is removed based on the priority, and the video obtained by the remaining cameras is displayed (S18). As a result, more important video is displayed and appropriate monitoring is possible. In steps S17 and S18, it is preferable to perform display control by pop-up display or display control by interrupt display for the video already displayed on the video display device 6.

  Next, as shown in FIG. 6, the control server 4 detects whether there is a video recording device 3 currently used for writing / recording other than the occurrence of an event (S21). Write recording is performed (S22). Here, when there are a plurality of video recording apparatuses 3 currently used for writing and recording other than the occurrence of an event, the plurality of video recording apparatuses 3 are selected in a predetermined order, and the selected plurality of video recording apparatuses are selected. Images obtained by different cameras are written and recorded in each of the devices 3.

  In step S21, when it is detected that all the video recording devices 3 are used for writing and recording of the event occurrence, the priority of the camera regarding the new event occurrence and the priority of the camera that has captured the recorded video. The camera with the lowest priority is removed based on the priority, and the video obtained by the remaining cameras is displayed (S23). As a result, a more important video is written and recorded, and the important video remains. Therefore, the recorded video can be played back, and appropriate monitoring can be performed.

  Subsequently, a flag corresponding to the event that occurred this time is set, and a list of events and addresses is created (S24). FIG. 7 shows an example of this list, in which the date and time of occurrence of an event, priority, event contents, rank (such as seismic intensity and rainfall), camera number, and video recording destination address are listed. Of course, when the priority of the event that has occurred at this time is low and video recording is not performed, it is not stored in the list.

  Following step S24, it is detected whether an event that causes the flag to be reset due to the event being settled (S25), and if it occurs, the flag is reset (S26). Further, it is detected whether or not all the flags indicating the occurrence of the event have been reset (S27), and if they are all reset, the process proceeds to steps S11 and S12 to control based on preset information or based on the operation of the monitor. Is done.

  On the other hand, if the set flag remains, a new event occurrence is detected (S28), and steps S25 to S28 are repeated. In this repetition, when occurrence of an event is detected, the process returns to step S12 and continues. As described above, even when a plurality of events occur, important video display and writing / recording control are automatically performed.

  FIG. 8 shows a process in the case of playing back the video written and recorded in the control server 4. The control server 4 monitors whether or not a recording video display request is received from the operation device 5 (S31). When a recording video display request arrives, the list described with reference to FIG. 7 is read and displayed on a predetermined video display device 6 (S32). In this display, as a reproduction display method, a display for selecting either “priority order” or “individual selection” is performed, and it is determined which one has been selected (S33).

  The selection of “priority order” is performed by designating a range in the column of the occurrence date of the event in the list. When the column of September 1, 2008 8:08 to 9:11 in FIG. 7 is selected, These three videos are selected, and the control server 4 sequentially displays them on the predetermined video display device 6 in order of priority (S34). The selection of “individual selection” is performed by selecting only one video, and the control server 4 sends the designated video information to the predetermined video display device 6 and displays the corresponding video (S35).

  Further, the control server 4 monitors whether or not an instruction input is received from the operation device 5 (S36), and if there is an instruction input, analyzes the instruction content (S37). To do. If a list is requested, the process returns to step S32 and continues. Thus, it is possible to reproduce and display the video recorded and recorded in consideration of the priority, and it is possible to select and display from the more important video and to appropriately monitor according to the importance of the event.

The block diagram which shows the structure of the Example of the surveillance camera system which concerns on this invention. The block diagram which shows the structure of the Example of the principal part of the surveillance camera system which concerns on this invention. The block diagram which shows the structure of the Example of the principal part of the surveillance camera system which concerns on this invention. The figure which shows an example of the memory content of the memory table used for operation | movement of the surveillance camera system which concerns on this invention. The flowchart for demonstrating the image | video display and video recording operation | movement of the Example of the surveillance camera system which concerns on this invention. The flowchart for demonstrating the image | video display and video recording operation | movement of the Example of the surveillance camera system which concerns on this invention. The figure which shows an example of the content of the list | wrist produced in the video display and video recording operation | movement of the Example of the surveillance camera system which concerns on this invention. The flowchart for demonstrating the image | video reproduction | regeneration display operation | movement of the Example of the surveillance camera system which concerns on this invention.

Explanation of symbols

1-1 to 1-n Camera device 2 Network 3 Video recording device 4 Control server 5 Controller 6 Video display device 7 Event output server 40 Central control unit 41 Network interface 42 Display video path unit 43 Recording video path unit 44 Memory table 45 Controller connection section 51 Calculation means 52 Control means

Claims (4)

A plurality of surveillance cameras for capturing video information by imaging a monitoring target;
Video recording means for writing and recording video information;
Video display means for displaying video based on video information;
For a plurality of events, a memory table in which event information, level information according to the degree of occurrence of the event, and weight information for the plurality of monitoring cameras are stored in association with each other,
Receiving notification of event information that occurred and its level, calculation means for calculating priority information of the plurality of monitoring cameras using the notified event information, its level, and information of the memory table;
Based on the priority information of each monitoring camera calculated by the calculating means, the video information obtained by the camera is written and recorded in the video recording means, and the video based on the video information obtained by the camera is displayed on the video. A surveillance camera system comprising: control means for performing control to display on the means. The generated event information notified to the calculation means and its level, the monitoring camera calculated by the calculation means and its priority information are set in the list information according to the occurrence time of the event, and the video recording means A search table creation means for storing a search table in association with the recording destination address of the corresponding video information in
Input means for performing an instruction input to display the information of the search table on the video display means,
The control means displays the information of the search table on the video display means when an instruction is inputted by the input means, and receives an instruction for the monitoring camera in the displayed information and obtains the video obtained by the camera. 2. The surveillance camera system according to claim 1, wherein the video information written and recorded in the recording means is read, and video based on the video information is displayed on the video display means. The surveillance camera system according to claim 1 or 2, further comprising means for enabling writing and recording after a predetermined time before the occurrence of an event in writing and recording of video information to the video recording means. The control means is already displayed on the video display means when performing control to display the video based on the video information on the video display means based on the priority information of each monitoring camera calculated by the calculation means. The surveillance camera system according to any one of claims 1 to 3, wherein display control based on a pop-up display for an image or display control based on an interrupt display is performed.

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