RU2688735C2 - Device and method of controlling real-time video monitoring system in alarm events recording mode - Google Patents

Device and method of controlling real-time video monitoring system in alarm events recording mode Download PDF

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RU2688735C2
RU2688735C2 RU2017131074A RU2017131074A RU2688735C2 RU 2688735 C2 RU2688735 C2 RU 2688735C2 RU 2017131074 A RU2017131074 A RU 2017131074A RU 2017131074 A RU2017131074 A RU 2017131074A RU 2688735 C2 RU2688735 C2 RU 2688735C2
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alarm
events
alarm events
event
operator
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RU2017131074A
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RU2017131074A (en
RU2017131074A3 (en
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Мурат Казиевич Алтуев
Джон Хён О
Гон Нён Ко
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ООО "Ай Ти Ви групп"
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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19639Details of the system layout
    • G08B13/19645Multiple cameras, each having view on one of a plurality of scenes, e.g. multiple cameras for multi-room surveillance or for tracking an object by view hand-over
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19654Details concerning communication with a camera
    • G08B13/19658Telephone systems used to communicate with a camera, e.g. PSTN, GSM, POTS
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19678User interface
    • G08B13/19691Signalling events for better perception by user, e.g. indicating alarms by making display brighter, adding text, creating a sound
    • G08B13/19693Signalling events for better perception by user, e.g. indicating alarms by making display brighter, adding text, creating a sound using multiple video sources viewed on a single or compound screen
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed circuit television systems, i.e. systems in which the signal is not broadcast
    • H04N7/181Closed circuit television systems, i.e. systems in which the signal is not broadcast for receiving images from a plurality of remote sources

Abstract

FIELD: physics.SUBSTANCE: invention relates to video surveillance, specifically to technologies aimed at optimization of process of processing video data on alarm events. Device provides processing of video data by means of a real-time video surveillance system in the mode of recording alarm events and includes the following: recording unit of alarm events, made with possibility to receive alarm events; archive generation unit; a unit for calculating priorities for displaying alarm events; a unit for displaying alarm events and a unit for processing said alarm events. Disclosed also is a corresponding method of processing video data using a video surveillance system.EFFECT: technical result is to expand the range of real-time video surveillance equipment in the alarm events recording mode, as well as to increase the speed of control of the video surveillance system.26 cl, 2 tbl

Description

Technical field

The group of inventions relates to the field of video surveillance, in particular to technologies aimed at optimizing the process of handling alarm events related to images received from at least one video camera.

In digital video surveillance systems, they accumulate an archive of video data that stores a sequence of images represented by video frames, or, more simply, frames. Each frame contains one image and an indication of the time of its registration. This archive is used to analyze events that occurred in the field of view of a stationary video camera. An event means the presence of certain objects, stationary or moving, their location, the trajectory of their movement and other signs of interest to the operator. The object can be a person, an animal, a vehicle, for example, a car, and any objects moving in the field of view of a video camera.

Also, the operator may be interested in alarm events, for example, such as events caused by the operation of video detectors, security sensors, audio detectors, fire equipment and many others.

The invention can find application in various video surveillance systems, video analytics, for example, in security systems, video surveillance systems for the operation of equipment, analytical systems for marketing research, etc.

The level of technology

Optimization of the processing of incoming alarms by operators in real time is necessary, at least, so that operators do not miss alarms, and also that each operator has time to handle as many alarms as possible. In contrast to the case when you need to look for something in the archive, in this case, you know in advance when an alarm event occurred, and also, by which camera and when it happened. Thus, it is necessary to select the desired part of the archive and show it to the operator in the desired order. The main problem is a large number of alarm events, compared with the number of operators.

And also, one of the most important tasks of building video surveillance systems is to reduce the time required to process alarm events of interest.

In the prior art, video analytics and video surveillance technologies are disclosed, in which upon detection of any event, video surveillance systems and video analytics produce specified actions (see application US 2012/0195363 A1, H04N 11/02, publ. 02.08.2012). The disadvantage of these technologies is the inability to control the video surveillance system in the recording mode of alarm events.

The prior art discloses technology analysis and automated verification of video data of interest to the user, including video data, while viewing which the alarm has triggered (see application US 2015/0098613 A1, G08B 13/196, publ. 04/09/2015). The disadvantages of these technologies is the inability to set the rules for displaying one or another video data.

In the prior art, video surveillance systems are disclosed that allow extracting events from video primitives using an event discriminator and also taking a predetermined response, such as an alarm, in response to an event (see application US 2005/0169367 A1, H04N 7/12, publ. 04.08 .2005) Although these technologies allow setting the priority of displaying video data of alarm events, they do not allow displaying video data of alarm events for the operator in real-time mode, depending on the specified display priority.

The objective of the claimed invention is to eliminate at least one of the disadvantages of the prior art.

DISCLOSURE OF INVENTION

The technical result of the claimed group of inventions is the expansion of the arsenal of technical means, in terms of managing the video surveillance system in real time in the recording mode of alarm events, improving the speed of managing the video surveillance system, by implementing control of the video surveillance system in real time.

This technical result is achieved due to the proposed control device of a video surveillance system in real time in the mode of recording alarm events, including:

block recording alarm events, configured to receive alarm events;

an archive generating unit configured to record video data received from at least one video camera and associated with alarm events;

an alarm event display priority calculator, configured to calculate the display priority of each alarm event;

an alarm event display unit configured to display for the operator said video data associated with the alarm events, ordered in descending order of the calculated display priority of each alarm event.

the processing unit mentioned alarm events, configured to notify the operator about the appearance of alarm events and fix the reaction of the operator to these events.

This technical result is also achieved due to the method of controlling the video surveillance system in real time in the recording mode of alarm events, comprising the steps of:

receive alarm events through the alarm recording unit;

recording video data obtained from at least one camera and associated with alarm events by means of an archive generation unit;

calculating priorities for displaying alarm events by means of a block for calculating priorities for displaying alarm events;

displaying for the operator said video data by means of an alarm event display unit, said video data being associated with alarm events and arranged in descending order of the calculated display priority of each alarm event;

notify the operator of the occurrence of alarm events and record the reaction of the operator to the mentioned events by means of an alarm processing unit.

In another private variant of the declared solution, the recording of video data during the formation of the archive occurs in a ring, new video data is recorded in the place of the oldest.

In another particular variant, the display unit for alarm events displays information about the alarm events in a table.

In the private version of the claimed solution, the size of the table is NxM, where N, M are integers.

In another particular embodiment, the display unit is configured to skip some of the table cells in the display.

In another private version, the display unit of alarm events, also made at least with the ability to:

- display of video data from the generated archive associated with alarm events,

- display the time duration of alarm events,

- display the causes of alarm events, where the causes are defined as: an alarm event that is initiated by the operator, an alarm event that is triggered by a video detector, an alarm event that is triggered by an audio detector, an alarm event from at least fire equipment, a thermometer, a refrigeration unit security equipment.

In another particular variant, the mentioned priority of displaying an alarm event depends on the time of occurrence, time duration, causes of occurrence, status of the alarm event, previously received alarm events.

In another private version, the mentioned operator notifications about alarm events can be at least visual, audible, textual.

In another private variant, the alarm processing unit is also configured to assign the operator a status, referred to alarm events, where the alarm event status is defined as: a dangerous event, a non-dangerous event, a false event.

In another particular variant, the selection of the status of video data of alarm events is implemented in the form of buttons with three colors: red is a dangerous event, yellow is a non-dangerous event, green is a false event.

In another particular variant, the mentioned fixation of the operator’s response to alarm events also consists in indicating the reasons for the classification of the alarm event.

In another particular variant, the mentioned fixation of the operator’s response to alarm events also consists in indicating the spatial domain of video data related to the reason for the specified classification of the alarm event.

In another private variant, if the operator does not assign a status to the alarm events mentioned, such events are considered to be missed events.

The implementation of the invention

Below is a description of exemplary variants of the claimed group of inventions. However, the claimed group of inventions is not limited to only these embodiments. It will be obvious to those skilled in the art that other options may fall under the scope of the claimed group of inventions described in the claims.

The group of inventions describes the device and method designed to control the video surveillance system in real time in the recording mode of alarm events.

Such devices can be understood as any electronic computing devices, such as: personal computers, smartphones, laptops, tablets, etc. The claimed methods are also implemented through any electronic computing devices that have the technical capabilities to implement the steps of these methods.

A video surveillance system is any system that has at least one video camera, and the number of such cameras can be arbitrary (hereinafter, one video camera will be indicated as an example of implementation), an archive for recording video data captured by a video camera. , electronic computing devices of the operator and / or user of this system, such as automated workplaces, and any other known in this level of technology can be included in such a system the apparatus.

Video data refers to any data presented in a video format coming from any video cameras that are supported by a video surveillance system (system 1).

Video data can be divided arbitrarily or in a specified way into parts, called video clips or simply fragments. The algorithm for such a separation can be specified in system 1 in any possible way.

When displaying video clips to the operator, they can be presented in a table, which can be square or rectangular. The size of this table can be specified as NxM, where M, N are integers that specify the number of cells in which the draw is displayed. Where under a thumbnail is meant miniatures or fragments of video data, which can be both viewed in real time and stopped at the request of the operator.

System 1 has a number of operating modes, for example, it can function in the mode of recording alarm events or this mode can be disabled. There may be other options for the operation of this system. The system operator can customize these modes as desired. All modes and settings can be changed on the fly, i.e. in real time. That further enhances the user experience with the specified system.

Next, we will consider the technology of control of the video surveillance system in real time in the recording mode of alarm events.

This mode is activated by the operator and programmatically represents the alarm panel, which can be made in the form of an area, which can be made as an area that occupies part or all of the screen. This panel also is intended for displaying video thumbnails, for example, alarm events that have occurred, awaiting processing by the operator.

The advantage of such an alarm panel is that its size, like the size of alarm event thumbnails, is automatically configured. In addition to viewing the raw alarm events, this panel allows you to view an archive with records of alarm events.

The real-time video surveillance system control device (device 1) in the alert event recording mode (alarm mode) consists of the alarm event recording unit (block 1), the archive generation unit (block 2), the priority display unit for displaying video fragments of the alarm events (block 3) , block displaying alarm events (block 4), block processing alarm events (block 5).

When the alarm mode is enabled in system 1, in block 1, which is a capture device, such as a video camera, for example, receive alarm events. Block 2 records video data related to alarm events to the archive.

The recording of video data of alarm events by means of block 2 may take place in a ring, where new data is recorded in place of older ones.

By means of block 2, device 1 generates an archive in which the video data captured by the camera and associated with alarm events are stored. Upon request, the operator can refer to the desired records in this archive. The archive can be stored locally or, for example, remotely or in cloud storage. Block 2 or permanently, or for some event records video data from cameras. In parallel, events occur in the system (for example, the door has opened). The video data of the alarm event is the interval of the video stored in the archive generation unit, which corresponds to the video camera on which the indicated door is visible. This interval can be set, for example, from the moment of opening the door to closing it.

In block 3, system 1 calculates the display priority of alarm events. This priority must be calculated to display for the operator first the more important video data associated with the alarm events, then the less important ones.

Priority is a total priority (Sp), which depends on the following parameters: time of occurrence of an alarm event (ts), time duration of video data (td), causes of video data of alarm events (r), status of an alarm event (q), previously received alarm events (l)

Sp is a regression function, for example, linear regression, which determines the dependence of the total priority on the parameters ts, td, r, q, l.

This function can be calculated as an arithmetic average between local priorities calculated for the values of the parameters ts, td, r, q, l.

Sp may change, for example from the minimum value - 0 to the maximum value - 100.

The local priority for the ts parameter is the function Ts (x), where x is a certain object identifier, for example, a number.

The local priority for the td parameter is the Td (x) function.

The local priority for the parameter r is the function R (x).

The local priority for the parameter q is the function Q (x).

The local priority for the parameter l is the function L (x).

Next, calculate the total priority for each fragment of the alarm event, as the arithmetic average between the four local ones:

Figure 00000001

Let's give an example.

Let the operator in the alarm mode recorded 5 video clips of alarm events.

Figure 00000002

As a result, for this example, the video clips for the operator will be displayed in descending order of total priority, namely, in the following order of fragment numbers: 2, 3, 1, 4, 5.

That is, for example, for the operator, a table is displayed containing a preview of the video data presented in the following form, where the raw cells can remain empty or be skipped:

Figure 00000003

The table size for the alarm window can be customized by the operator.

The operator also has the ability to manually stop the mechanism for filling the table cells.

This arrangement of video fragments when displayed by block 4 of system 1 allows the operator’s attention to be focused on the most important objects and alarm situations.

Block 4 is designed to display video clips of alarm events for the operator in descending order of the calculated total priority of each video snapshot, i.e. higher priority fragments are displayed earlier than lower priority fragments.

In this case, in system 1 there is the possibility of skipping when displaying some of the table cells.

Incoming alarm events populate the free cells of a table or matrix. Filling occurs in order from the cells with the lowest number to the cells with the highest number. The cell number is defined as (<cell vertical position> - 1) * <matrix width> + <horizontal cell position> - 1. As soon as the operator processes the alarm, the corresponding cell is released and remains empty until it reaches a queue when new alarms. When increasing the size of a table, alarms occupy cells with the same numbers.

The display unit 4 is also designed to display video data from the generated archive associated with alarm events, display the time duration of alarm events, display the causes of alarm events, where the causes are defined as: an alarm event that is triggered by the operator, an alarm event that is triggered by a video detector, an alarm event which is triggered by an audio detector, an alarm event emanating from at least the fire equipment, thermometer, refrigeration unit security equipment.

Using block 5, the operator receives notifications about the occurrence of alarm events; these can be, at least, visual, sound, text messages. Further, block 5 also records the operator's reaction to the mentioned events, with the subsequent processing of the mentioned video data of the disturbing events.

Block 5 is also designed to allow the operator to assign the status of alarm events, for example, such as: dangerous, non-dangerous, false event. At the same time, such a choice of status can be implemented on the alarm panel in the form of buttons with three colors: red - a dangerous event, yellow - a dangerous event, green - a false event.

In block 5, the operator’s reaction to alarm events is also recorded, which consists, at least, in indicating the reasons for classifying the alarm event, indicating the spatial video data area related to the reason for the classification of the alarm event.

In this case, if the operator does not assign a status to alarm events, such events are considered to be missed events.

The method of controlling system 1 is implemented by performing the following steps:

Stage 1: Receive alarm events through block 1.

Step 2: Record video data related to received alarm events through block 2 to the archive. Video data can be obtained from any capture device.

Step 3: Calculation of priorities for displaying alarm events, by block 3, which calculates the total priority, as the arithmetic average of the local priorities of the parameters ts, td, g, q, 1.

Step 4: Displaying alarm events through block 4, where video data associated with alarm events is displayed to the operator in descending order of the calculated display priority of each alarm event.

Step 5: Processing the video data of alarm events through block 5, which notifies the operator of the occurrence of alarm events, and also records the operator's response to the events mentioned.

These steps are performed by means of units of system 1, which are software and hardware.

Embodiments of the present group of inventions can be implemented using software, hardware, software logic, or a combination thereof. In an embodiment, the program logic, software, or instruction set is stored on one of various conventional computer-readable media. In the context of this document, “computer readable medium” may be any medium or means that may contain, store, transmit, distribute or transport instructions for use by an instruction execution system, equipment or device such as a computer. A computer-readable medium may include a non-volatile computer-readable storage medium, which may be any medium or medium containing or storing instructions for use by the instruction execution system, equipment or device, such as a computer, or for use in communication therewith.

In one embodiment, a user interface circuit or circuit configured to provide at least some of the control functions described above may be proposed.

If necessary, at least part of the various functions discussed in this specification can be performed in a different order than and / or simultaneously with each other. In addition, if necessary, one or more of the functions described above may be optional or may be combined.

Although the independent claims describe various aspects of the present invention, other aspects of the invention include other combinations of features from the described embodiments and / or dependent claims, along with features of the independent claims, and the combinations mentioned are not necessarily explicitly stated in the claims.

Claims (42)

1. A device for processing video data by means of a real-time video surveillance system in the mode of recording alarm events, including:
block recording alarm events, configured to receive alarm events;
an archive generating unit configured to record video data received from at least one video camera and associated with alarm events;
a unit for calculating priorities for displaying alarm events, configured to calculate the total priority for displaying each alarm event;
an alarm event display unit configured to display for the operator said video data associated with alarm events, ordered in descending order of the calculated total display priority of each alarm event;
the processing unit mentioned alarm events, configured to notify the operator about the appearance of alarm events and fix the reaction of the operator to these events.
2. The device under item 1, characterized in that the recording of video data during the formation of the archive occurs in a ring, the new video data is recorded in the place of the oldest.
3. The device according to claim 1, characterized in that the display unit of alarm events displays information about the alarm events in a table.
4. The device according to claim 3, wherein the size of the table is N × M, where N, M are integers.
5. The device according to claim 4, in which the display unit is configured to skip some of the cells in the table when displaying.
6. The device according to p. 5, characterized in that the block display of alarm events, also made at least with the ability to:
- display of video data from the generated archive associated with alarm events,
- display the time duration of alarm events,
- display the causes of alarm events, where the causes are defined as: an alarm event that is initiated by the operator, an alarm event that is triggered by a video detector, an alarm event that is triggered by an audio detector, an alarm event from at least fire equipment, a thermometer, a refrigeration unit security equipment.
7. The device according to claim 6, characterized in that said priority of displaying an alarm event depends on the time of occurrence, time duration, causes of occurrence, status of the alarm event, previously received alarm events.
8. The device according to claim 1, characterized in that said operator notifications of alarm events can be at least visual, audible, textual.
9. The device according to claim 8, wherein the alarm processing unit is also configured to allow the operator to assign the status to said alarm events, where the status of the alarm event is defined as: a dangerous event, a non-dangerous event, a false event.
10. The device according to claim 9, characterized in that the selection of the status of video data of alarm events is implemented in the form of buttons with three colors: red - a dangerous event, yellow - a non-dangerous event, green - a false event.
11. The device according to p. 10, characterized in that said fixation of the operator’s response to alarm events also consists in indicating the reasons for the classification of the alarm event.
12. The device according to claim 11, characterized in that said fixation of the operator’s response to alarm events also consists in indicating the spatial area of the video data related to the reason for the specified classification of the alarm event.
13. The device according to p. 12, characterized in that if the operator does not assign a status to the said alarm events, such events are considered to be missed events.
14. A method of processing video data by means of a real-time video surveillance system in the mode of recording alarm events, comprising:
receive alarm events through the alarm recording unit;
recording video data obtained from at least one camera and associated with alarm events by means of an archive generation unit;
calculating total priorities for displaying alarm events by means of a priority calculation unit for displaying alarm events;
displaying for the operator said video data by means of an alarm event display unit, said video data being associated with alarm events and ordered in decreasing order of the calculated total display priority of each alarm event;
notify the operator of the occurrence of alarm events and record the reaction of the operator to the mentioned events by means of an alarm processing unit.
15. The method according to p. 14, characterized in that the recording of video data during the formation of the archive occurs in a ring, new video data is recorded in the place of the oldest.
16. The method according to p. 14, characterized in that the display unit of alarm events information about the alarm event displays in a table.
17. The method according to p. 16, characterized in that the size of the table is equal to N × M, where N, M are integers.
18. The method according to p. 17, in which the display unit is configured to skip some of the table cells in the display.
19. The method according to p. 18, characterized in that the display unit of alarm events, also made at least with the possibility:
- display of video data from the generated archive associated with alarm events,
- display the time duration of alarm events,
- display the causes of alarm events, where the causes are defined as: an alarm event that is initiated by the operator, an alarm event that is triggered by a video detector, an alarm event that is triggered by an audio detector, an alarm event from at least fire equipment, a thermometer, a refrigeration unit security equipment.
20. The method according to p. 19, characterized in that the priority of displaying an alarm event depends on the time of occurrence, time duration, causes of occurrence, status of the alarm event, previously received alarm events.
21. The method according to p. 14, characterized in that the said operator notifications about alarm events can be at least visual, sound, text.
22. The method according to p. 21, characterized in that the processing unit of alarm events, is also configured to assign the operator status of the alarm events, where the status of the alarm event is defined as: dangerous event, non-hazardous event, false event.
23. The method according to p. 22, characterized in that the choice of the status of video data of alarm events is implemented in the form of buttons with three colors: red is a dangerous event, yellow is a non-hazardous event, green is a false event.
24. The method according to p. 23, characterized in that said fixation of the operator's response to alarm events also consists in indicating the reasons for the classification of the alarm event.
25. The method according to p. 24, characterized in that the said fixation of the operator's response to alarm events also consists in indicating the spatial area of the video data associated with the cause of the specified classification of the alarm event.
26. The method according to p. 25, characterized in that if the operator does not assign the status to the said alarm events, such events are considered to be missed events.
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