JP2008154228A - Monitoring video recording controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring video recording controller which efficiently detects an event that occurs in an area to be monitored, and stores photographed data while considering a degree of importance in a state retrieval is facilitated later. <P>SOLUTION: A monitoring video recording controller comprises: a setting information recording section 203b which records, as setting information, information indicative of a condition for sorting an event that occurs in the monitored area, for each class and importance degree information constituted of a degree of importance for each of sensors 40-1 to 40-m and weighting information of a degree of importance for each class of the event; and a CPU 206 which calculates a degree of importance while sorting the event for each class on the basis of sensor signals and the setting information when it is detected on the basis of the sensor signals acquired from the sensors 40-1 to 40-m that the event occurs in the monitored area, generates management information containing the sorting information of the event and the degree of importance, associates the generated management information with video data when the event occurs, and records data contained in the management information preferentially from the highest degree of importance. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a surveillance video recording control apparatus for recording surveillance video taken by a plurality of surveillance cameras.

  In recent years, surveillance cameras have been installed in office buildings, factories, stores, etc., and by monitoring and recording images taken with these surveillance cameras, crimes can be prevented and the criminal being identified when a crime occurs There is a monitoring system to use. In this monitoring system, as the resolution of the surveillance camera increases, the volume of video to be recorded becomes enormous, and a large-capacity recording medium is still required even if each image is compressed and encoded by JPEG or the like. .

  As a technique for controlling the recording capacity of an image taken by a surveillance camera, there is one described in Patent Document 1. In the technique of this patent document 1, video data captured by a monitoring camera is continuously recorded while being overwritten on a recording medium of a limited capacity, and if an abnormal situation occurs, overwriting of the video data of the corresponding part is prohibited. Thus, automatic recording is performed by controlling the recording capacity of the video data recorded on the recording medium.

By controlling the recording on the recording medium in this way, it is not necessary to increase the capacity of the recording medium, and video data when an abnormal situation occurs can be stored without being erased.
JP 2005-56191 A

  However, in the technique described in Patent Document 1, since it is configured to prohibit overwriting based on an alarm signal generated when an abnormal state is detected by a sensor, the corresponding video data is stored. Even if there is a false detection, there is a problem that unnecessary video data may be actually saved.

  For example, the above monitoring system is often used in combination with a patrol guard regularly performed during non-working hours such as office buildings, factories or stores at night or on holidays. However, there is a problem that the image sensor is saved and the storage capacity is consumed despite the fact that the sensor reacts with respect to the image data.

  In addition, if it is set to stop the detection process of the patrol time sensor in order to prevent the erroneous detection described above, the video data when the crime occurs during the patrol time will not be saved. was there.

  Furthermore, when multiple abnormal conditions occur continuously and the capacity of the recording medium is exceeded, the stored video data is overwritten regardless of the importance level, or video data related to a new abnormal condition is saved. In some cases, video data with high importance may not be saved. This problem was likely to occur, especially when this automatic monitoring was performed over a long period of time.

  Furthermore, when there are a plurality of pieces of video data stored when an abnormal state occurs, there is a problem that the processing for retrieving the video data during reproduction becomes complicated.

  Therefore, the present invention has been made in view of the above problems, and efficiently detects an event that has occurred in an area to be monitored, and saves photographing data in consideration of the importance level in a state that can be easily searched later. An object is to provide a video recording control apparatus.

  In order to achieve the above object, a surveillance video recording control device (20) of the present invention is based on a sensor signal received from any one of a plurality of sensors (40-1 to 40-m) installed in a surveillance area. A plurality of monitoring cameras (10-1) provided in the monitoring area corresponding to the plurality of sensors (40-1 to 40-m) when it is detected that a predetermined event has occurred in the monitoring area. 10-n) for controlling processing for associating and recording information relating to the event to the video data supplied from the information, information indicating a condition for classifying the event generated in the monitoring area by type, Importance information including weighting information of importance of each of the plurality of sensors (40-1 to 40-m) and importance for each event type is recorded in advance as setting information. When it is detected that an event has occurred in the monitoring area based on the setting information recording unit (203b) and the sensor signal, the setting information is recorded on the basis of the sensor signal and the setting information recorded in the setting information recording unit (203b). The event is classified by type, and an analysis unit (206) that calculates the importance of the event from the importance information, the event classification information by the analysis unit (206), and the importance of the event, The management information generating unit (206) that generates management information of the event including the management information generated by the management information generating unit (206) and the management information generated by the management information generating unit (206). And a recording control unit (206) that performs control so that recording is performed preferentially from those having a high degree of importance.

  Moreover, the monitoring video recording control apparatus (20) of another form is the said monitoring area based on the sensor signal received from one of the some sensors (40-1 to 40-m) installed in the monitoring area. When it is detected that a predetermined event has occurred, a plurality of monitoring cameras (10-1 to 10-n) provided in the monitoring area corresponding to the plurality of sensors (40-1 to 40-m). ) For controlling the processing for associating and recording information relating to the event to the video data supplied from the information, information indicating a condition for classifying the event generated in the monitoring area for each type, and the plurality of sensors ( 40-1 to 40-m) importance information including weighting information of each importance, importance for each event type, and the video data set for each event type. A setting information recording unit (203b) that pre-records information on the recording destination of the data as setting information, and detecting that an event has occurred in the monitoring area based on the sensor signal, the sensor signal and the setting information recording Based on the setting information recorded in the section (203b), the event is classified for each type, the importance for each event is calculated from the importance information, and the recording destination information of the video data is acquired Management information for generating the event management information, including the analysis unit (206), the event classification information by the analysis unit (206), the importance of the event, and the recording destination information of the video data The importance included in the management information generated by the generation information (206) and the management information generated by the management information generation section (206) is the video data when the event occurs. Preferentially from casting, characterized in that it comprises a recording controller configured to record (206) in accordance with the recording destination information of the video data.

  In addition, the setting information recording unit (203b) of the monitoring video recording control device (20) has an authority to update the management information set for each event type as the setting information to be recorded. Management information recording unit (203c) that further includes holder information and records management information generated by the management information generation unit (206), and one management information recorded in the management information recording unit (203c) A management information update unit (206) that updates the management information according to the update instruction when an update instruction to update the importance of the management information is acquired from an update authority holder of the management information recorded in the setting information You may do it.

  Also, these monitoring video recording control devices (20) obtain the importance information for each type included in the setting information in the setting information recording unit (203b) according to the number of times the event has occurred. A setting information update unit (206) for updating the importance may be further provided.

  According to the monitoring video recording control apparatus of the present invention, it is possible to efficiently detect an event that has occurred in an area to be monitored, and to preferentially save from highly important photographing data in a state that can be easily searched later. be able to.

<< First Embodiment >>
<Configuration of Monitoring System According to First Embodiment>
A configuration of the monitoring system 1 using the monitoring video processing apparatus 20 to which the monitoring video recording control apparatus according to the first embodiment of the present invention is applied will be described with reference to FIG.

  The monitoring system 1 according to this embodiment includes n (n is an integer of 2 or more) monitoring cameras 10-1 to 10-n, a monitoring video processing device 20, a monitoring monitor 30, and m (m is 2). (Integer of the above) (abnormality detection sensors) 40-1 to 40-m.

  The monitoring cameras 10-1 to 10-n are video cameras that are installed in each monitoring area in the equipment to be monitored, shoot each monitoring area, and output an analog video signal. The signal is transmitted to the monitoring video processing device 20.

  The monitoring video processing apparatus 20 includes an input signal processing unit 201, a compression processing unit 202, a recording unit 203, an input unit 204, a time information management unit 205, a CPU (Central Processing Unit) 206, and an expansion processing unit 207. And an output signal processing unit 208.

  The input signal processing unit 201 receives analog video signals transmitted from the monitoring cameras 10-1 to 10-n, performs A / D conversion, and outputs monitoring video data. The compression processing unit 202 compresses the monitoring video data A / D converted by the input signal processing unit 201 using a compression method such as the JPEG method, and generates encoded data.

  The recording unit 203 includes a monitoring video recording unit 203a, a setting information recording unit 203b, and a management information recording unit 203c.

  The monitoring video recording unit 203 a records the encoded data compressed by the compression processing unit 202 in a predetermined area under the control of the CPU 206.

  When the setting information recording unit 203b detects that an event has occurred based on signals transmitted from the sensors 40-1 to 40-m, information for classifying the detected event, for example, an event Information generated by regular patrol information to determine that it was not a malfunction but a regular patrol, or a person (employee, security guard, etc.) who was allowed to enter the monitored facility entered the room And the importance level information including the weight identification information of the importance level of each sensor 40-1 to 40-m and the importance level of each event type. To do.

  The management information recording unit 203c corresponds to information related to events detected in the past, for example, identification information of a sensor that has transmitted the sensor signal in which the occurrence of the event is detected, event occurrence time information, and event classification. The management information including the identification information of the setting information and the importance level of the event is recorded.

  The input unit 204 operates the monitoring video processing apparatus 20 such as setting information to be recorded in the setting information recording unit 203b and an instruction to reproduce the encoded data recorded in the monitoring video recording unit 203a of the recording unit 203 by a user operation. Enter the instruction to be executed. The time information management unit 205 measures the current time using a clock function.

  The CPU 206 (analysis unit) detects the occurrence of an event such as opening / closing of a door or entry of a person into a facility based on a sensor signal transmitted from the sensors 40-1 to 40-m, and the event has occurred. When this is detected, this event is based on the setting information recorded in the setting information recording unit 203b, the current time measured by the time information management unit 205, and the sensor identification information acquired from the sensor signal. Are classified for each type, and the importance of this event is calculated from the importance information included in the setting information.

  When the CPU 206 (management information generation unit) classifies the event and calculates the importance, the CPU 206 generates management information for each event including the setting information and the importance of the event corresponding to the classification of the event. Control is performed to record in the information recording unit 203c.

  Further, the CPU 206 (recording control unit) associates the generated management information with the encoded data acquired from the compression processing unit 202 as additional information and compares it with the management information associated with the already recorded encoded data. The recording area in the monitoring video recording unit 203a is determined preferentially from the encoded data having high importance, and control is performed so as to record.

  In addition, the CPU 206 (setting information update unit) updates the importance level information for each type included in the setting information in the setting information recording unit 203b according to the number of times that the event has occurred.

  Furthermore, when the CPU 206 acquires an instruction signal for reproducing the encoded data from the input unit 204 by a user operation, the CPU 206 acquires the corresponding encoded data recorded in the monitoring video recording unit 203a and sends it to the expansion processing unit 207. Send it out.

  The decompression processing unit 207 decompresses the encoded data acquired from the CPU 206 into video data and sends the video data to the output signal processing unit 208. The output signal processing unit 208 converts the video data acquired from the decompression processing unit 207 into a method that matches the input format of the monitor 30 to be output, for example, the NTSC signal method.

  The monitoring monitor 30 displays the video data acquired from the output signal processing unit 208.

  The sensors 40-1 to 40-m are sensors that detect opening and closing of doors, sensors that acquire identification information of occupants acquired from ID tags etc. possessed by the occupants, and monitor the detected or acquired information. The data is transmitted to the CPU 206 of the video processing device 20.

<Operation of Monitoring System According to First Embodiment>
Next, the operation of the monitoring video processing apparatus 20 when recording videos taken by the monitoring cameras 10-1 to 10-n in the monitoring system 1 according to the present embodiment will be described with reference to the flowchart of FIG.

  In the present embodiment, it is assumed that a plurality of setting information as shown in FIG. 3 is recorded in the setting information recording unit 203b in advance. The setting information determines whether or not the detected event is due to an abnormality when the occurrence of the event is detected based on a signal transmitted from any of the sensors 40-1 to 40-m. In FIG. 3, “setting information ID” which is information for identifying setting information, “type” which is information indicating the classification of setting information, and “sensor ID” which is identification information of the corresponding sensor in FIG. ”,“ Sensor importance ”, which is information indicating the importance of each sensor in 10 stages,“ Scheduled time ”, which is information indicating time information to be classified, and identification of the camera corresponding to the sensor “Camera ID” that is information and “importance addition coefficient” (initial value = 1) that is a coefficient for weighting the sensor importance for each setting information are recorded.

  “Setting information (1)” in the figure is setting information for monitoring a person entering the monitored facility, and is received by the sensor 40-1 installed at the gate (1) at the entrance of this facility. Among the identification IDs transmitted from a card or the like possessed by a person passing through the gate (1), an identification ID that permits entry is set. Here, it is assumed that the identification IDs “abc123” and “def456” are set as identification IDs that permit entry into the room.

  In this setting information (1), the rank indicating the importance of the sensor 40-1 is set to “10”, which is the highest level. In this setting information (1), a camera that monitors the vicinity of the gate (1). As shown in FIG.

  In addition, the setting information (2) is setting information for identifying the periodic visit, and the entrance / exit information acquired by the sensor 40-2 that detects the opening / closing of the door (1) is due to the regular visit. A time range for determining whether or not is set. Here, it is assumed that the entry / exit information of the door (1) at the time “12:00 to 12:05” is set as information for determining that it is based on regular patrol.

  In this setting information (2), the rank indicating the importance of the sensor 40-2 is set to “5”. In this setting information (2), a monitoring camera is used as a camera for monitoring the vicinity of the door (1). 10-2 is set.

  Further, the setting information (3) is also setting information for identifying that it is a regular tour, and a sensor 40-3 for detecting the opening / closing of the door (2) and a sensor 40-4 for detecting the opening / closing of the door (3). A time range for determining whether or not the person's entry information acquired by the sensor 40-5, which is a temperature sensor installed in the vicinity of the door (3), is based on regular patrol is set. Here, the entrance / exit information at the time “23:00 to 23:05” at the sensor 40-3, the entrance / exit information at the time “23:05 to 23:10” at the sensor 40-4, and the time “at the sensor 40-5” It is assumed that the person entry information of “23:00 to 23:15” is set as information for determining that the person is due to regular patrol.

  Also, the importance level of the sensor 40-3 monitored by the setting information (3) is set to “1” which is the lowest level, the importance level of the sensor 40-4 is set to “3”, and the importance level of the sensor 40-5 is set. In this setting information (3), the monitoring camera 10-3 is set as a camera for monitoring the vicinity of the door (2), and the monitoring camera 10 is set as a camera for monitoring the vicinity of the door (3). -4 is set.

  In addition, “regulation” is provided as a setting information ID associated with encoded data not corresponding to these setting information (1) to (3).

  In a state where the setting information is recorded in this way, first, when the video signal of the video in the monitoring area captured by the monitoring cameras 10-1 to 10-n is transmitted to the monitoring video processing device 20, the input signal processing unit 201 and A / D converted into video data.

  Then, the video data from the plurality of A / D-converted surveillance cameras are divided and mapped on a frame memory for one screen by a known technique, or a plurality of time-series multiplexing processes are performed. Processing is performed in the input signal processing unit 201 so that the video captured by the monitoring camera is displayed on one screen (S1).

  The video data subjected to these processes in the input signal processing unit 201 is compressed by the compression processing unit 202 by a compression method such as the JPEG method, and encoded data is generated (S2).

  When encoded data is generated by the compression processing unit 202, the current time is acquired from the time information management unit 205 under the control of the CPU 206, and each monitoring camera in which the current time and shooting are performed on the generated encoded data The identification information is added and recorded in the area where the video data when the event in the monitoring video recording unit 203a of the recording unit 203 is not detected is recorded. When recording, the old data is recorded by sequentially overwriting (S3). The encoded data recorded at this time is divided as a predetermined time or data size and recorded as sequentially generated file data.

  In this way, while the encoded data of the video continuously captured by the monitoring cameras 10-1 to 10-n is recorded in the monitoring video recording unit 203a, the CPU 206 transmits from the sensors 40-1 to 40-m. A sensor signal is acquired, and it is monitored whether or not an event such as opening / closing of a door or entry of a person into a facility is detected based on the sensor signal (S4).

  When occurrence of an event is detected in the CPU 206 (“YES” in S4), management information and encoded data are recorded based on the event importance calculated from the setting information (S5).

  Refer to the flowchart of FIG. 4 for the recording control process based on the importance executed by the CPU 206 when the occurrence of an event is detected based on the sensor signal acquired from any of the sensors 40-1 to 40-m. I will explain.

  When the CPU 206 detects the occurrence of an event based on the sensor signal (S11), the current time (including the year, month, day) measured by the time information management unit 205 is acquired as the event occurrence time information. A sensor ID for identifying the source sensor from the sensor signal and event information (opening / closing of the door, entry of a person, etc.) are acquired (S12). Here, it is assumed that the acquired event occurrence time information is “2007.03.04 12:03”, the sensor ID is “door (1)”, and the event content is “door open / close”.

  When such information is acquired, it is compared with the setting information of FIG. 3 recorded in the setting information recording unit 203b, and it is determined whether there is setting information corresponding to the generated event (S13).

  As a result of the determination, the setting information ID “setting information (2)” in FIG. 3 (scheduled time “12:00 to 12:05”, sensor ID “door (1)”, event type “periodic patrol (1)” ")" Is the setting information corresponding to the event that has occurred ("YES" in S13), and it is determined that the event is not an abnormality (S14).

  Next, it is determined whether or not the management information related to the setting information ID “setting information (2)” is in the management information recording unit 203c (S15). Here, it is determined that there is no management information related to the setting information ID “setting information (2)” in the management information recording unit 203c (“NO” in S15). The setting information ID “setting information (2)” and the sensor ID “ From “door (1)”, event occurrence time information “2007.03.04 12:03”, and the importance of the event (value obtained by multiplying “sensor importance” by “importance additional coefficient”) “5” “Management information (1)” is generated and recorded in the management information recording unit 203c as shown in FIG. 5A (S16).

  Next, it is determined whether or not the monitoring video recording unit 203a of the recording unit 203 has a remaining capacity capable of recording file data including encoded data of the event that has occurred (S17). Here, it is determined that there is a remaining capacity in which file data including encoded data of the event that has occurred can be recorded (“YES” in S17), and this file data is recorded in the monitoring video recording unit 203a (S18). Here, the “management information (1)” generated in step S16 is added to the file data to be recorded.

  As described above, when the occurrence of an event is newly detected in the state where the “management information (1)” and the encoded data corresponding thereto are recorded (S11), the event is performed in step S12 as in the case described above. The occurrence time information “2007.03.18 12:05”, the sensor ID “door (1)”, and the event information “door open / close” are acquired, and this time the setting information ID “setting information (2)” is also obtained. It is assumed that the event is determined to be applicable (S13, S14).

  Here, since the management information related to the setting information ID “setting information (2)” is recorded in the management information recording unit 203c by the process of step S16 at the previous recording (“YES” in S15), a new “management” is recorded. “Information (2)” is generated and recorded, and “Importance addition coefficient” of “Setting information (2)” in the setting information and “Importance” in the management information are updated (S19).

  Here, an example of a state in which “management information (2)” is added to the management information and “importance” is updated is shown in FIG. In the example after FIG. 5B, in order to simplify the explanation and to make it easy to understand how the importance changes depending on the number of events, the original important number is simply the inverse of the number obtained by adding the number of events. It is assumed that the importance is obtained by multiplying the degree. The “importance degree addition coefficient” of the setting information is updated to the reciprocal of the number obtained by adding the number of times determined to be an event to the initial value “1”. By updating the setting information related to events that occur periodically as described above, the importance of the event decreases as the number of times the corresponding event occurrence is detected increases.

  Here, the “importance degree addition coefficient” of “setting information (2)” is the reciprocal number of “2” in which “1” is added to the initial value “1” by determining that the event corresponds to the event. It is updated to “1/2 = 0.5”.

  In this way, when the “importance addition coefficient” of the setting information is updated, the “importance” of “management information (1)” and “management information (2)” in the management information is updated accordingly. . Here, “sensor importance level: 5” of “door (1)” is multiplied by the updated “importance level additional coefficient: 0.5”, and the recorded “management information (1)” and “management information ( 2) "is updated from" 5 "to" 2.5 ".

  Next, again, it is determined that the monitoring video recording unit 203a has a remaining capacity in which file data including encoded data of the event that has occurred can be recorded (“YES” in S17), and “management information (2)” is stored. The added file data is recorded.

  When the occurrence of an event is newly detected in the state where “management information (1)”, “management information (2)”, and encoded data corresponding to these are recorded in this manner (S11), the above-described event occurs. As in the case, event occurrence time information, sensor ID, and event content information are acquired (S12).

  Here, it is assumed that the acquired event occurrence time information is “2007.03.24 23:07”, the sensor ID is “door (3)”, and the event content is “door opening / closing”. It is assumed that the event corresponds to the sensor ID “door (3)” of the ID “setting information (3)” (S13, S14).

  Then, it is determined that the management information related to the setting information ID “setting information (3)” is not in the management information recording unit 203c (“NO” in S15), the setting information ID “setting information (3)”, the sensor The ID “door (3)”, event occurrence time information “2007.03.24 23:07”, and the importance level of the event (“sensor importance level” multiplied by “importance level additional coefficient”) “3” “Management information (3)” is generated and recorded in the management information recording unit 203c as shown in FIG. 5C (S16).

  Here, at the initial value, the importance of the sensor itself is higher for “Door (1)” than for “Door (3)”, but it is applicable by updating the “Importance Addition Factor” and “Importance” described above. “Management Information (1)” and “Management Information (2)” with “Severity: 2.5” for “Setting Information (2)” where the event was detected multiple times It is lower than “importance: 3” of “management information (3)” and reversed.

  Next, again, it is determined that the monitoring video recording unit 203a has a remaining capacity in which file data including encoded data of the event that has occurred can be recorded (“YES” in S17), and “management information (3)” is stored. The added file data is recorded.

  When the occurrence of an event is newly detected in a state where the “management information (1)” to “management information (3)” and the encoded data corresponding thereto are recorded in this way (S11), Similarly, the occurrence time information, the sensor ID, and the event internal information are acquired (S12).

  Here, it is assumed that the acquired event occurrence time information is “2007.03.25 12:02”, the sensor ID is “door (1)”, and the event content is “door opening / closing”. It is assumed that the event corresponds to the ID “setting information (2)” (S13, S14).

  Here, since management information relating to the setting information ID “setting information (2)” is recorded in the management information recording unit 203c (“YES” in S15), new “management information (4)” is generated and recorded. In addition, “Management Information (1)”, “Management Information (1)” and “Management Information” related to “Setting Information (2)” in Management Information and “Importance Factor Coefficient” in “Setting Information (2)” The “importance” of “management information (2)” and “management information (4)” is updated (S19).

  Here, an example of a state in which “management information (4)” is added to the management information and the importance is updated is shown in FIG. “Importance factor addition coefficient” of “Setting information (2)” of the setting information is added to “1” which is the initial value and “2” which is the number of times detected by the current determination that the event corresponds to the event. It is updated to “1 / 3≈0.33” which is the reciprocal of “3”.

  When the “importance addition coefficient” of the setting information is updated in this manner, the updated “importance addition coefficient: 0.33” is updated to “sensor importance: 5” of “door (1)”. And the importance of “management information (1)”, “management information (2)”, and “management information (4)” is updated from “2.5” to “1.7”.

  Next, it is determined whether the monitoring video recording unit 203a of the recording unit 203 has a remaining capacity capable of recording the encoded data including the generated event (S17).

  Here, it is determined that there is no recordable remaining capacity of the encoded data including the event that has occurred (“NO” in S17), and the importance level is generated in the recorded data “management information (4)” this time. It is determined whether or not there is management information having a value equal to or lower than the importance “1.7” (S20).

  Here, there are “management information (1)” and “management information (2)”, which are management information having the same importance level as “1.7” in “management information (4)”. The file data corresponding to `` Management information (1) '' that is the data with the old event occurrence time is selected as the data to be overwritten, and the file data including the encoded data of the event that occurred this time is added to this file data. It is recorded together with “management information (4)” (S21).

  When the file data corresponding to “management information (1)” is deleted by overwriting, the information of “management information (1)” in the management information is also deleted.

  When the information of “Management information (1)” in the management information is deleted, the number of detections of the event corresponding to “Setting information (2)” is changed from “3” to “2”. "Importance degree additional coefficient" is updated from "0.33" to "0.5", and accordingly, "management information (2)" which is management information corresponding to "setting information (2)" in the management information And “importance” of “management information (4)” is updated from “1.7” to “2.5” (S22).

  When the occurrence of an event is newly detected in a state where “management information (1)” to “management information (4)” and encoded data corresponding thereto are recorded in this way (S11), Similarly, the occurrence time information, sensor ID, and event content information are acquired (S12).

  Here, it is assumed that the acquired event occurrence time information is “2007.03.26 23:08”, the sensor ID is “door (3)”, and the event content is “door opening / closing”. It is determined that the event corresponds to the “door (3)” of the ID “setting information (3)” (S13, S14).

  Here, since management information related to the setting information ID “setting information (3)” is recorded in the management information recording unit 203c (“YES” in S15), new “management information (5)” is generated and recorded. In addition, “Management Information (3)”, “Management Information (3)”, and “Management Information (3)” are included in the management information. The “importance” of “management information (5)” is updated (S19).

  Here, an example of a state in which “management information (5)” is added to the management information and the importance is updated is shown in FIG. The “importance degree addition coefficient” of the “setting information (3)” of the setting information is “2” obtained by adding “1” to the initial value “1” as a result of the current determination that the event is applicable. The reciprocal number is updated to “1/2 = 0.5”.

  When the “importance addition coefficient” of the setting information is updated in this way, the “importance addition coefficient: 0.5” updated to “sensor importance: 3” of “door (3)” is updated accordingly. And the importance of “management information (3)” and “management information (5)” is updated from “3” to “1.5”.

  Next, it is determined whether the monitoring video recording unit 203a of the recording unit 203 has a remaining capacity capable of recording the encoded data including the generated event (S17).

  Here, it is determined that there is no recordable remaining capacity for the encoded data including the event that has occurred (“NO” in S17), and the importance level is generated in the recorded data “management information (5)” this time. It is determined whether or not there is management information having a value equal to or less than “1.5” (S20).

  Here, there is “Management Information (3)”, which is management information with the same importance level as “Management Information (5)”, and the occurrence time is higher than “Management Information (5)”. The file data corresponding to the old management information (3) is selected as the data to be overwritten, and the file data including the encoded data of the event that has occurred this time is added to the management information (5 ) "Is recorded (S21).

  When the file data corresponding to “management information (3)” is deleted by overwriting, the information of “management information (3)” in the management information is also deleted.

  When the information of “Management information (3)” in the management information is deleted, the number of detections of the event corresponding to “Setting information (3)” is changed from “2” to “1”. “Importance factor addition coefficient” is updated from “0.5” to “1”, and accordingly, “Management information (5)” “Management information (5)” corresponding to “Setting information (3)” in the management information is updated. The “importance” is updated from “1.5” to “3” (S22).

  When occurrence of an event is newly detected in a state where “management information (1)” to “management information (5)” and encoded data corresponding to these are recorded in this way (S11), Similarly, the occurrence time information, the sensor ID, and the event internal information are acquired (S12).

  Here, it is assumed that the acquired event occurrence time information is “2007.03.27 22:05”, the sensor ID is “door (1)”, and the event content is “door open / closed”. It is assumed that the event does not correspond to any of the set information (“NO” in S13).

  Here, since the event does not correspond to the setting information, the corresponding sensor ID “door (1)”, event occurrence time information “2007.03.27 22:05”, and the importance (sensor importance) of the event “ "Management information (6)" consisting of "5" is generated and recorded in the management information recording unit 203c as shown in FIG. 5F (S16).

  Since “Management Information (6)” does not correspond to the setting information, it is judged that the degree of abnormality is high, and the encoded data corresponding to this “Management Information (5)” is preferentially overwritten in a state of prohibiting overwriting regardless of the importance. To be recorded.

  Next, it is determined whether the monitoring video recording unit 203a of the recording unit 203 has a remaining capacity capable of recording the encoded data including the generated event (S17).

  Here, it is determined that there is no recordable remaining capacity of the encoded data including the event that has occurred (“NO” in S17), and the importance level is generated in the recorded data “management information (4)” this time. It is determined whether or not there is management information having a value equal to or lower than the importance “5” (S20).

  Here, “Management information (2)” and “Management information (4)” have the lowest importance level of “2.5”, and among these, “Management information (2)” has the older event occurrence time information. Therefore, the file data corresponding to “Management Information (2)” is selected as the data to be overwritten, and the file data including the encoded data of the event that has occurred this time is the “Management Information (6)”. It is recorded together (S21).

  When the file data corresponding to “management information (2)” is deleted by overwriting, the information of “management information (2)” in the management information is also deleted.

  When the information of “Management information (2)” in the management information is deleted, the number of detections of the event corresponding to “Setting information (2)” is changed from “2” to “1”, and “ "Importance factor addition coefficient" is updated from "0.5" to "1". Accordingly, "Management information (4)" "Management information (4)" is the management information corresponding to "Setting information (2)" in the management information. The “importance” is updated from “2.5” to “5” (S22).

  If it is determined in step S20 that the recorded data includes only management information with a higher importance level than the management information created this time, the management information created this time and the management information The file data including the encoded data to be recorded is not recorded and a recording stop process is performed (S23).

  When the recording of the file information including the management information created this time and the encoded data of this management information is stopped, the management information created this time is deleted, and the information in the management information recording unit 203c is updated accordingly. Is done.

  Above, description of operation | movement when recording the image | video image | photographed with the monitoring cameras 10-1 to 10-n in the monitoring system 1 by this embodiment is complete | finished.

  Next, processing when the video recorded in the monitoring video recording unit 203a of the recording unit 203 by the above-described processing is reproduced by the operation of the input unit 204 by the user will be described.

  The monitoring video processing device 20 records the monitoring video as described above and monitors whether or not a reproduction instruction is input from the user.

  When the video data to be reproduced is selected by the user from the monitoring video recording unit 203a of the recording unit 203, the sensor ID, event occurrence time information, event content information, etc. associated with the recorded encoded data are referred to. A reproduction instruction is input.

  When a reproduction instruction is input from the input unit 204, the CPU 206 acquires a reproduction instruction signal based on the reproduction instruction, and reads out file data including encoded data of the corresponding monitoring video from the monitoring video recording unit 203a.

  The read file data is decompressed by the decompression processing unit 207 to generate decoded video data, and the output signal processing unit 208 outputs, for example, the NTSC signal system according to the input format of the monitoring monitor 30. Is converted to

  At this time, the additional signal added to the monitoring video file data read out under the control of the CPU 206 is multiplexed with the monitoring video data as character data, and a process for superimposing is performed. It may be sent to.

  The video data output from the output signal processing unit 208 is sent to the monitoring monitor 30 and displayed.

  According to the monitoring system 1 of the present embodiment described above, it is possible to efficiently determine whether or not the detected event is due to an abnormality by using preset setting information, and when the event occurs The video data to be recorded includes identification information of the sensor that sent the signal that the event has been detected, event occurrence time information, event content information, etc. Further, recording is performed according to the importance level set for each of the sensors 40-1 to 40-m and the importance level that changes based on the number of times that the event is detected for each setting information. It is possible to preferentially record video data related to highly important events while effectively utilizing the capacity of the medium.

  Further, when the recorded video data is reproduced in order to confirm the contents of the event that has occurred, efficient confirmation can be performed by using the above-mentioned importance.

  In the present embodiment, the case has been described where importance is set for each piece of management information. However, it is detected that the management information is grouped according to the contents of the setting information and corresponds to the grouped management information. Depending on the number of times and the importance of the sensor itself, the importance of the grouped management information may be set. In this case, it is possible to simplify the management of setting information and management information by grouping recorded data, for example by dividing folders, and handling the data with the newest recording date in the same folder with higher importance. Is preferred.

  In addition, when an event that does not correspond to the setting information occurs, the corresponding sensor importance is handled as it is as the importance of the management information, so that the importance is higher than the event corresponding to the setting information and managed appropriately. Is possible.

  In addition, items regarding the frequency with which overwriting can be performed are set in advance in each setting information, and recording may be performed efficiently according to this.

  For example, the frequency of overwriting of periodic video data is set to one week, and compared with the content of the item of the previous time recorded in the management information when the importance level is judged, By sequentially overwriting the latest video data of the patrol guard in the area where the video data of the patrol is stored, the video data of the latest patrol guard for a predetermined period can be saved with a limited storage capacity.

  Further, in the present embodiment, in the normal case where an event does not occur, the case where overwriting recording is performed without creating management information has been described, but in the normal case, items related to events such as sensor information and importance By creating management information that does not exist and performing the same processing as when an event occurs, the processing of the entire apparatus may be simplified.

  In addition, when a valid value is not set for the above-mentioned importance, the importance is uniformly treated as the lowest rank, and the priority of overwriting is set with other items such as the time of occurrence, thereby ensuring consistency of the entire process. You may make it keep.

  Furthermore, it is also preferable for the recorded file data in the normal state to change the importance level by the administrator by changing only the management information portion in the file data.

<< Second Embodiment >>
The monitoring system according to the second embodiment of the present invention records information of a recording area in the management information when the encoded data is recorded in the monitoring video recording unit 203a of the recording unit 203 under the control of the CPU 206 of the monitoring video processing device 20. As a result, the management information is managed in a lump without being multiplexed to individual encoded data, and the efficiency in determining the importance level or searching for the encoded data to be reproduced is increased.

<Configuration of Monitoring System According to Second Embodiment>
Since the configuration of the monitoring video processing apparatus 20 according to the present embodiment is the same as that of the first embodiment, detailed description of the processing units having the same functions is omitted. The functions different from the first embodiment are as follows.

  When the CPU 206 (analysis unit, management information generation unit) detects that an event has occurred, the CPU 206 classifies the event for each type and calculates the importance of the event from the importance information included in the setting information. Generates recording area information of file data including encoded data including this event based on the type and importance of this event, and the corresponding setting information, event importance, and the file corresponding to the classification of this event Management information composed of data recording area information is generated and recorded in the management information recording unit 203c.

  Further, the CPU 206 (recording control unit) controls the file data to be recorded in the monitoring video recording unit 203a according to the generated recording area information.

  The monitoring video recording unit 203a of the recording unit 203 is an area for recording encoded data in a normal state where no event occurs, an area for recording encoded data when an event not corresponding to the setting information occurs, and a setting It has recording areas classified into areas for recording the encoded data for each type when an event corresponding to the information occurs.

<Operation of Monitoring System According to Second Embodiment>
Next, the operation of the monitoring system 1 according to the present embodiment will be described.

  In the present embodiment, in addition to the information shown in FIG. 3, as the setting information, a “recording area ID” that designates a folder for recording file data including encoded data in the monitoring video recording unit 203 a for each setting information ID. It is recorded.

  An example of the setting information in this embodiment is shown in FIG. In FIG. 6, the recording area ID for the setting information (1) is set in the folder of “identification ID (1)”, and the recording area ID for the setting information (2) is set in the folder of “periodic patrol (1)”. The recording area ID for the setting information (3) is set in the “regular tour (2)” folder, and the recording area ID for “normative” that does not correspond to any setting information is set in the “emergency area” folder. Yes.

  In the state where the setting information is recorded in this way, the main operation in the case of recording the video imaged by the monitoring cameras 10-1 to 10-n in the present embodiment is the flowchart of FIG. 2 described in the first embodiment. Since this is the same except for the encoded data recording process in step S3, detailed description of the same part is omitted.

  In step S3, when encoded data is generated in a normal state where no occurrence of an event is detected, an area for recording file data including encoded data in the normal state in the monitoring video recording unit 203a is stored in the CPU 206. The file data selected by the control is recorded in this area. The encoded data in the normal state is managed with a setting that has low importance and can be overwritten, and the file data is recorded by repeatedly overwriting an area of a certain capacity.

  Further, the recording control process based on the importance level executed by the CPU 206 when the occurrence of an event is detected has been described in the first embodiment except for the processes in steps S16 and S19 in the flowchart of FIG. Since it is the same as the processing, detailed description is omitted.

  When the management information is generated in steps S16 and S19 in FIG. 4, the CPU 206 determines whether there is corresponding setting information, or if there is corresponding setting information, the type of the setting information. Based on the information, a recording area in the monitoring video recording unit 203a is selected and added to the management information and recorded. The recording area of the monitoring video recording unit 203a includes an area for recording file data including encoded data when an event not corresponding to the setting information occurs, and encoded data when an event corresponding to the setting information occurs. The file data is selected from the recording areas classified into areas for recording by type.

  An example of the recorded management information is shown in FIG. In addition to the management information shown in FIG. 5, the management information shown in FIG. 7 includes a “recording area ID” that is information on a recording destination folder area provided for each setting information, and a file identified in this folder area. “File ID” which is data name information is recorded.

  Here, the file data including the encoded data corresponding to “setting information (2)” is stored in the folder “periodic patrol (1)” with the file data names “periodic (1-1)”, “periodic (1-2) ) ”..., and the file data including the encoded data corresponding to“ setting information (3) ”is stored in the folder“ periodic patrol (2) ”with the file data name“ periodic (2-1) ”, “Period (2-2)” is recorded.

  In addition, the management information that has already been deleted is recorded so that the accuracy in determining the importance is set high.

  Further, the processing after step S17 by the CPU 206 is executed for the selected recording area.

  According to the present embodiment described above, since the management information includes information on the recording area of the file data including the encoded data, when reproducing the video data recorded in the monitoring video recording unit 203a, the user In this case, it is possible to specify and reproduce the importance of the recorded encoded data and a desired video only by referring to the management information.

  In the present embodiment, description has been made with the configuration having as an item the information “recording area ID” of the folder area to be recorded for each event type, but the “recording area ID” is not used and the “file ID” is used. ""

<< Third Embodiment >>
The monitoring system according to the third embodiment of the present invention enables management information recorded in the recording unit 203 of the monitoring video processing device 20 to be changed by an update authority holder.

<Configuration of Monitoring System According to Third Embodiment>
Since the configuration of the monitoring video processing apparatus 20 according to the present embodiment is the same as that of the second embodiment, detailed description of the processing units having the same functions is omitted. The functions different from those of the second embodiment are as follows.

  The CPU 206 (management information update unit) determines whether an event has occurred, whether there is corresponding setting information when the event has occurred, and if there is setting information, what type of this setting information is. Information for identifying the management information update authority holder set accordingly is recorded in the management information recording unit 203c as information in the management information.

  Further, when recording file data including encoded data in the monitoring video recording unit 203a, the CPU 206 deletes the corresponding management information and file data when an instruction to cancel the recording process is acquired from the update authority holder.

  In addition, when the encoded data is reproduced, the CPU 206 updates the corresponding management information in accordance with the instruction when it receives an instruction to update the management information from the update authority holder.

<Operation of Monitoring System According to Third Embodiment>
Next, the operation of the monitoring system 1 according to the present embodiment will be described.

  In the present embodiment, it is assumed that the monitoring system 1 is large-scale, and patrol and monitoring are performed simultaneously by a plurality of monitoring personnel.

  In this embodiment, whether or not to perform an automatic update confirmation request for automatically confirming whether the management information has been updated when the recorded encoded data is reproduced, in addition to the information shown in FIG. 6, as the setting information Information indicating whether or not, and information for identifying a management information update authority holder set for each type of setting information are recorded.

  With the setting information recorded as described above, an operation in the case of recording the video shot by the monitoring cameras 10-1 to 10-n in the present embodiment will be described with reference to the flowchart of FIG.

  In FIG. 9, the processes in steps S31 to S34 are the same as the processes in steps S1 to S4 in FIG.

  The recording control process (S35) based on the importance executed by the CPU 206 when the occurrence of an event is detected is the first embodiment except for the processes in steps S16 and S19 in the flowchart of FIG. The detailed processing is omitted because it is the same as the processing described in.

  When the management information is generated in step S16 and step S19 in FIG. 4, if there is corresponding setting information, or if there is corresponding setting information, the “update authority holder” information of this setting information is acquired by the CPU 206. Are added to the corresponding management information and recorded.

  An example of the recorded management information is shown in FIG. In the management information shown in FIG. 10, in addition to the management information shown in FIG. 7, information of “update authority holder” acquired from the setting information is recorded.

  Here, the update authority holder of “Management information (1)”, “Management information (2)”, and “Management information (4)” corresponding to “Setting information (2)” is “Monitoring person”. The update authority holder of "Management information (3)", "Management information (5)" corresponding to the setting information "(3)", and "Management information (6)" that does not correspond to any setting information Is recorded.

  Returning to FIG. 9, after the file data including the management information and the encoded data is recorded based on the importance level in step S <b> 35, the management information is determined by determining that the importance level of the event is low by any monitor. When a change instruction is input, the CPU 206 obtains a signal based on the management information change instruction (“YES” in S36), and determines whether or not the input person of the management information change instruction is a management information update authority holder. In order to confirm, a screen for inputting identification information such as a password or identification ID is displayed.

  When identification information is input by the monitor, the management information is referred to, and it is determined whether or not this monitor is a management information update authority holder (S37).

  When it is determined that the user has the update authority for the management information (“YES” in S37), the management information is updated as normal state information, and the file data including the encoded data that can be overwritten can be overwritten. Is changed to the lowest rank (S38).

  FIG. 11 shows an example when the content of one management information is changed by a management information update authority holder. In FIG. 11, the importance of the management information (6) is deleted by the update authority holder.

  In this case, to simplify the process, the recording area ID and file ID are not updated, but only the importance level is changed so that the recording area is preferentially used for overwriting when the next event occurs. To do.

  In this recording control process, the same process can be performed even if the execution order of the step S36 for detecting the recording release instruction signal and the step S37 for analyzing the authority for the management information change signal are switched.

  On the other hand, when monitoring is not performed at a plurality of locations at the same time, or when it is not possible to confirm the situation on the spot when an event occurs and a management information change instruction is not detected (“NO” in S36), later Management information is not updated because the status at the time of the event occurrence is confirmed.

  Further, when a record release instruction is detected (“YES” in S36), if the input person of the management information change instruction is not an update authority holder who has the authority to update the management information (“NO” in S37), Management information is not updated.

  In this way, when a similar alarm signal is generated the next time by performing high-precision importance determination by another monitor during recording, it is used for efficient use of the recording area and playback. The search efficiency can be further increased.

  Above, description of operation | movement when recording the image | video image | photographed with the monitoring cameras 10-1 to 10-n in the monitoring system 1 by this embodiment is complete | finished.

  Next, processing when the video data recorded in the monitoring video recording unit 203a of the recording unit 203 is reproduced by the above-described processing by the operation of the input unit 204 by the user will be described with reference to the flowchart of FIG. .

  The monitoring video processing device 20 simultaneously monitors the playback instruction from the user while recording the monitoring video (S41).

  When video data to be reproduced is selected from the monitoring video recording unit 203a, management information stored in the management information recording unit 203c is referred to and a reproduction instruction is input.

  When a playback instruction is input from the input unit 204 (“YES” in S42), the playback instruction is acquired by the CPU 206, and the encoded data of the corresponding monitoring video is read from the monitoring video recording unit 203a under the control of the CPU 206 ( S43).

  The read encoded data is decompressed by the decompression processing unit 207 and decoded into the monitoring video data, and for example, NTSC signal system or the like according to the input format of the monitoring monitor 30 output by the output signal processing unit 208. Conversion is performed (S44).

  At this time, of the management information recorded in the management information recording unit 203c, information related to the encoded data of the monitoring video read in step S44 is read out under the control of the CPU 206 and converted into character data. It is sent to the output signal processing unit 208 (S45).

  From the output signal processing unit 208, the monitoring video data and the character data of the additional information are transmitted and displayed on the monitoring monitor 30 in a superimposed state.

  When the reproduction processing of the encoded data designated by the user is completed, the CPU 206 refers to the setting information and determines whether the setting is to automatically confirm to the user whether or not the management information has been updated (S46).

  If the content of the setting information is a setting for automatically confirming whether or not the management information has been updated ("YES" in S46), the user is asked whether or not to update the importance of the management information. For this purpose is displayed on the monitor 30 for monitoring.

  When the user gives an instruction to update the importance of the management information (“YES” in S47), the user who has performed the instruction operation inputs authentication information such as a password or an identification ID, and the management information It is determined whether or not the user has the authority to update the management information by referring to the management information including the update authority holder of the management information stored in the recording unit 203c (S48).

  If it is determined that the user has the authority to update the management information (“YES” in S48), the management information is updated, and is referred to when the management information is generated next time due to the occurrence of a similar event ( S49).

  Note that the same processing can be performed even if the execution order of steps S46 and S47 for determining whether or not there is an instruction to update management information and the step S48 for analyzing the authority of the user are switched.

  On the other hand, when the content of the setting information is a setting that does not automatically check the update of the management information (“NO” in S46), or when the user does not give an instruction to update the importance of the management information, (“NO” in S47) If the user authority is not sufficient to update the management information (“YES” in S48), the management information is not updated.

  In the present embodiment, the process of automatically confirming the update of the management information at the end of the reproduction process has been described. However, the update of the management information can be performed at an arbitrary timing according to a user instruction.

  According to the present embodiment described above, since the importance management information is updated by a preset update authority holder, photographing data with higher importance is preferentially stored with higher accuracy.

  In the present embodiment, the management information has been described in the form of being transmitted and recorded in the management information recording unit 203c as management information in which the analysis result in the CPU 206 and the information of the recording area to be actually recorded are integrated. The management information may be multiplexed with the encoded data of the video signal and recorded in the monitoring video recording unit 203a.

  The setting information in the first to third embodiments may be set for a single item, or may be set by associating a plurality of items. The setting information related to the operation may be separated and managed as a separate item.

  In addition, each item of the setting information can set and change the importance by the user, and can weight the importance according to the priority order set by the user.

  In the first to third embodiments, the recording unit is built in the monitoring video processing apparatus. However, the recording unit may be provided in an external recording apparatus.

  In the first to third embodiments, the recording unit is configured as one. However, the present invention is not limited to this. The recording unit is provided in each of two or more recording media, and the first recording medium is provided. May be configured such that video data to be overwritten is recorded, and video data having high importance other than overwriting is transferred to the second and subsequent recording media.

  Alternatively, management information and setting information are recorded on the first recording medium using a small capacity and high speed medium, and monitoring video data is recorded on the second and subsequent recording media using a large capacity medium. You may comprise so that it may do.

  In the first to third embodiments, a sensor installed outside the monitoring video processing device is used to detect the occurrence of an event in the monitoring area. However, the present invention is not limited to this. Detection may be performed by detecting movement in the monitored video data.

  In the first to third embodiments, the surveillance camera is a video camera that outputs an analog video signal, and the video signal of the captured surveillance video is transmitted to the surveillance video processing device. Without being limited thereto, the monitoring video data may be transmitted to the monitoring video processing device by configuring each of the plurality of monitoring cameras with a digital camera connected to the monitoring video processing device via a network. When configuring the network in this way, it is preferable to convert it into encoded data such as JPEG data in the surveillance camera and supply it to the surveillance video processing apparatus.

  Furthermore, in the case of the above-described monitoring system via the network, the recording release instruction and the instruction for updating the importance of the management information in the third embodiment are performed from an external device of the monitoring video processing apparatus existing on the network. May be.

It is a block diagram which shows the structure of the monitoring system 1 using the monitoring video processing apparatus 20 which is 1st Embodiment-3rd Embodiment of the monitoring video recording control apparatus which concerns on this invention. It is a flowchart which shows operation | movement when the video data is input by the monitoring video processing apparatus 20 which is 1st Embodiment and 2nd Embodiment of the monitoring video recording control apparatus based on this invention. It is a table | surface which shows an example of the setting information recorded in the monitoring video processing apparatus 20 which is 1st Embodiment of the monitoring video recording control apparatus which concerns on this invention. It is a flowchart which shows operation | movement of CPU206 when video data is recorded by the monitoring video processing apparatus 20 which is 1st Embodiment and 2nd Embodiment of the monitoring video recording control apparatus based on this invention. (A)-(F) is a table | surface which shows an example of the management information recorded in the monitoring video processing apparatus 20 which is 1st Embodiment of the monitoring video recording control apparatus which concerns on this invention. It is a table | surface which shows an example of the setting information recorded in the monitoring video processing apparatus 20 which is 2nd Embodiment of the monitoring video recording control apparatus which concerns on this invention. It is a table | surface which shows an example of the management information recorded in the monitoring video processing apparatus 20 which is 2nd Embodiment of the monitoring video recording control apparatus which concerns on this invention. It is a table | surface which shows an example of the setting information recorded in the monitoring video processing apparatus 20 which is 3rd Embodiment of the monitoring video recording control apparatus which concerns on this invention. It is a flowchart which shows operation | movement when video data is input by the monitoring video processing apparatus 20 which is 3rd Embodiment of the monitoring video recording control apparatus which concerns on this invention. It is a table | surface which shows an example of the management information recorded in the monitoring video processing apparatus 20 which is 2nd Embodiment of the monitoring video recording control apparatus which concerns on this invention. It is a table | surface which shows an example of the management information updated in the monitoring video processing apparatus 20 which is 2nd Embodiment of the monitoring video recording control apparatus which concerns on this invention. It is a flowchart which shows operation | movement of CPU206 when video data is reproduced | regenerated by the monitoring video processing apparatus 20 which is 1st Embodiment and 2nd Embodiment of the monitoring video recording control apparatus based on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Surveillance system 10-1 to 10-n ... Surveillance camera 20 ... Surveillance video processing device 30 ... Monitoring monitor 40-1 to 40-m ... Sensor 201 ... Input signal processing part 202 ... Compression processing part 203 ... Recording part 203a ... Monitoring video recording unit 203b ... Setting information recording unit 203c ... Management information recording unit 204 ... Input unit 205 ... Time information management unit 206 ... CPU
207 ... Decompression processing unit 208 ... Output signal processing unit

Claims (4)

When it is detected that a predetermined event has occurred in the monitoring area based on a sensor signal received from any one of the plurality of sensors installed in the monitoring area, the monitoring area corresponds to the plurality of sensors. In the monitoring video recording control apparatus for controlling the processing for associating and recording the information on the event to the video data supplied from the plurality of monitoring cameras provided in
Information indicating conditions for classifying events generated in the monitoring area for each type, and importance information including importance levels for each of the plurality of sensors and importance levels for each event type A setting information recording unit that records in advance as
When it is detected that an event has occurred in the monitoring area based on the sensor signal, the event is classified by type based on the sensor signal and setting information recorded in the setting information recording unit, and An analysis unit for calculating the importance of the event from the importance information;
A management information generating unit that generates management information of the event including classification information of the event and importance of the event by the analysis unit;
A recording control unit that associates the management information generated by the management information generation unit with the video data when the event occurs, and controls to record preferentially from the highest importance included in the management information; ,
A surveillance video recording control apparatus comprising: When it is detected that a predetermined event has occurred in the monitoring area based on a sensor signal received from any one of the plurality of sensors installed in the monitoring area, the monitoring area corresponds to the plurality of sensors. In the monitoring video recording control apparatus for controlling the processing for associating and recording the information on the event to the video data supplied from the plurality of monitoring cameras provided in
Information indicating conditions for classifying events generated in the monitoring area for each type, importance level information including importance levels of each of the plurality of sensors, and importance level weighting information for each event type, and the event A setting information recording unit for recording in advance as setting information information on the recording destination of the video data set for each type of
When it is detected that an event has occurred in the monitoring area based on the sensor signal, the event is classified by type based on the sensor signal and the setting information recorded in the setting information recording unit. Calculating the degree of importance for each event from the degree information, and obtaining the recording destination information of the video data;
A management information generating unit that generates management information of the event including classification information of the event by the analysis unit, importance of the event, and information of a recording destination of the video data;
The video data when the event occurs is controlled so as to be recorded in accordance with the information of the recording destination of the video data with priority from the highest importance included in the management information generated by the management information generation unit. A recording control unit;
A surveillance video recording control apparatus comprising: The setting information recording unit further includes update authority holder information having authority to update the management information set for each event type as the setting information to be recorded,
A management information recording unit for recording the management information generated by the management information generating unit;
When an update instruction for updating the importance of one piece of management information recorded in the management information recording unit is acquired from an update authority holder of the management information recorded in the setting information, the management information is updated according to the update instruction. A management information update unit to be updated;
The surveillance video recording control apparatus according to claim 1, further comprising: The apparatus further comprises a setting information updating unit for updating the importance level information of each type included in the setting information in the setting information recording unit according to the number of times the event has occurred. Item 4. The surveillance video recording control apparatus according to any one of Items 1 to 3.

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