CN112714294B

CN112714294B - Alarm preview method, device and computer readable storage medium

Info

Publication number: CN112714294B
Application number: CN202011592439.XA
Authority: CN
Inventors: 邵尤榜; 余佳民
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-10-21
Anticipated expiration: 2040-12-29
Also published as: CN112714294A

Abstract

The embodiment of the application discloses an alarm preview method, an alarm preview device and a computer readable storage medium, and belongs to the technical field of security and protection. In the embodiment of the application, when an alarm is generated at one monitoring point, namely a new alarm is generated, if the alarm information corresponding to the video previewed by one preview window is the same as the new alarm information, the new alarm is represented as a repeatedly generated alarm, and the video of the monitoring point generating the alarm is previewed. Under the condition, the video of the monitoring point is continuously displayed in the preview window without opening a preview window, so that the unnecessary opening of the preview window can be reduced, the resource waste of the preview window is reduced, and the alarm preview can be reasonably carried out.

Description

Alarm preview method, device and computer readable storage medium

Technical Field

The embodiment of the application relates to the technical field of security and protection, in particular to an alarm preview method and device and a computer readable storage medium.

Background

In the technical field of security protection, alarms for abnormality of corresponding monitoring points are given out through alarms deployed at a plurality of monitoring points, such as smoke alarms, combustible gas alarms and anti-theft alarms. In addition, each monitoring point is also provided with a camera for collecting videos of the corresponding monitoring point and sending the collected videos to the preview device, for example, sending the videos of the monitoring points generating alarms to the preview device. The preview device is used for displaying the video of the monitoring points generating the alarm, namely the preview device is used for carrying out alarm preview on the plurality of monitoring points. And the security protection personnel timely take measures to deal with the abnormity by watching the video displayed on the preview equipment. How to reasonably preview the alarm is a current problem needing attention.

Disclosure of Invention

The embodiment of the application provides an alarm preview method, an alarm preview device and a computer readable storage medium, which can reasonably perform alarm preview. The technical scheme is as follows:

in one aspect, an alarm preview method is provided, where the method includes:

acquiring first alarm information corresponding to the first monitoring point;

if one or more opened preview windows exist, acquiring alarm information corresponding to videos displayed in the one or more opened preview windows to obtain one or more second alarm information;

if it is detected that second alarm information identical to the first alarm information exists in the one or more pieces of second alarm information, continuously displaying the video of the first monitoring point in a first preview window, wherein the first preview window is an opened preview window corresponding to the second alarm information identical to the first alarm information.

Optionally, before the video of the first monitoring point is continuously displayed in the first preview window, the video of the first monitoring point is already displayed in the first preview window, and the continuously displayed video and the already displayed video are videos acquired by the same data acquisition device;

the first alarm information comprises a first alarm generation source and a first alarm type, the first alarm generation source refers to information of first data acquisition equipment and/or a first alarm, the first data acquisition equipment is used for acquiring videos of the first monitoring point, the first alarm is used for alarming the first monitoring point, and the first alarm information is the same as the first alarm generation source and the first alarm type;

or, the first alarm information includes the first alarm generation source, and the first alarm information is the same as the first alarm generation source.

Optionally, after the video of the first monitoring point continues to be displayed in the first preview window, the method further includes:

updating the preview ending time of the first preview window according to the first preview duration and the moment when the first alarm information is acquired;

the first preview time length is a set fixed time length, or the first preview time length is a preview time length corresponding to a first alarm type and/or a first alarm generating source included in the first alarm information, and one alarm type and/or one first alarm generating source corresponds to one preview time length.

Optionally, after updating the preview end time of the first preview window according to the time when the first alarm information is acquired, the method further includes:

closing the first preview window when the preview end time of the first preview window is reached; or,

and closing the first preview window when a preview finishing instruction is received before the preview finishing time of the first preview window is reached.

displaying alarm prompt information corresponding to the first preview window, wherein the alarm prompt information corresponding to the first preview window at least comprises alarm frequency information;

the alarm frequency information comprises a first alarm frequency, and the first alarm frequency indicates the frequency of corresponding alarm accumulation after the first preview window is opened for the last time; and/or the presence of a gas in the gas,

the alarm frequency information comprises one or more second alarm frequencies, any one of the one or more second alarm frequencies corresponds to one alarm generating source, and the any one second alarm frequency indicates the frequency of accumulated alarms of the corresponding alarm generating source after the first preview window is opened for the last time; and/or the presence of a gas in the gas,

the alarm frequency information comprises one or more third alarm frequencies, any one of the one or more third alarm frequencies corresponds to one alarm generating source and one alarm type, and any one of the third alarm frequencies indicates that the corresponding alarm generating source accumulatively generates the alarm frequency of the corresponding alarm type after the first preview window is opened for the last time; and/or the presence of a gas in the gas,

the alarm frequency information comprises one or more fourth alarm frequencies, any one of the one or more fourth alarm frequencies corresponds to one alarm type, and any one of the fourth alarm frequencies indicates the cumulative alarm frequency of the corresponding alarm type generated after the first preview window is opened for the last time.

Optionally, if there are one or more opened preview windows, acquiring alarm information corresponding to a video displayed in the one or more opened preview windows, and after obtaining one or more second alarm information, further including:

and if it is detected that second alarm information which is the same as the first alarm information does not exist in the one or more pieces of second alarm information, a second preview window is opened, and the video of the first monitoring point is displayed in the second preview window.

Optionally, after the opening of the second preview window, the method further includes:

and setting the preview ending time of the second preview window according to the moment of acquiring the first alarm information, and/or displaying the alarm prompt information corresponding to the second preview window.

In another aspect, an alert preview apparatus is provided, the apparatus including:

the first acquisition module is used for acquiring first alarm information corresponding to the first monitoring point;

the second acquisition module is used for acquiring alarm information corresponding to videos displayed in one or more opened preview windows if one or more opened preview windows exist, and acquiring one or more second alarm information;

and the first display module is used for continuously displaying the video of the first monitoring point in a first preview window if the one or more pieces of second alarm information are detected to have second alarm information which is the same as the first alarm information, wherein the first preview window is an opened preview window corresponding to the second alarm information which is the same as the first alarm information.

In another aspect, a computer device is provided, which includes a processor and a memory, the memory is used for storing computer programs, and the processor is used for executing the programs stored in the memory to realize the steps of the alarm preview method. Optionally, the computer device is also referred to as an electronic device.

In another aspect, a computer-readable storage medium is provided, in which a computer program is stored, which, when being executed by a processor, implements the steps of the above-mentioned alarm preview method.

In another aspect, a computer program product is provided containing instructions which, when run on a computer, cause the computer to perform the steps of the above-described alert preview method.

The technical scheme provided by the embodiment of the application can at least bring the following beneficial effects:

in the embodiment of the application, when an alarm is generated at one monitoring point, namely a new alarm is generated, if the alarm information corresponding to the video previewed by one preview window is the same as the alarm information of the new alarm, the new alarm is represented as a repeatedly generated alarm, and the video of the monitoring point generating the alarm is previewed. Under the condition, the video of the monitoring point is continuously displayed in the preview window without opening a preview window, so that the unnecessary opening of the preview window can be reduced, the resource waste of the preview window is reduced, and the alarm preview can be reasonably carried out.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a system architecture diagram according to an alarm preview method provided in an embodiment of the present application;

FIG. 2 is a flowchart of an alarm preview method according to an embodiment of the present disclosure;

FIG. 3 is a flow chart of another method for previewing an alarm according to an embodiment of the present disclosure;

FIG. 4 is a diagram of a preview effect of a repeat alarm not merging provided by an embodiment of the present application;

FIG. 5 is a diagram of a preview effect of a combination of repeat alarms provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an alarm preview device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be further described in detail with reference to the accompanying drawings.

The alarm preview method provided by the embodiment of the application is applied to various security and protection scenes, such as a smoke prevention and control scene, a combustible gas alarm prevention and control scene, an anti-theft alarm scene and the like.

For example, in a smoke alarm prevention and control scenario, smoke alarms are deployed at multiple monitoring points to alarm for an abnormality occurring at the corresponding monitoring points, for example, when a smoke alarm detects that the smoke concentration exceeds a threshold, the smoke alarm starts to alarm. In addition, each monitoring point is also provided with one or more data acquisition devices, such as a camera, a camera and the like, and the data acquisition devices are used for acquiring videos of the corresponding monitoring points and sending the acquired videos to the preview device. In some scenarios, each alarm is linked to one or more data acquisition devices deployed at the monitoring point. For example, when a monitoring point generates a smoke alarm, the smoke alarm sends alarm information corresponding to the monitoring point to the preview device, in addition, the smoke alarm triggers the data acquisition device deployed at the monitoring point to start, and after the data acquisition device is started, the smoke alarm acquires a video of the monitoring point and sends the acquired video to the preview device. After receiving the alarm information and the video corresponding to the monitoring point, the preview device displays the video of the monitoring point according to the alarm preview method provided by the embodiment of the application, so that security personnel can preview the video of the smoke site and take corresponding measures to respond to abnormal smoke alarm in time.

For another example, in an anti-theft alarm scenario, an anti-theft alarm and a data acquisition device are deployed at a plurality of monitoring points, and the anti-theft alarm is used for alarming when detecting that a corresponding monitoring point is abnormal, and sending alarm information to a preview device. The anti-theft alarm is also used for triggering the data acquisition equipment to be started when the alarm is generated, and the data acquisition equipment is used for being started when the trigger of the anti-theft alarm is received so as to acquire videos of corresponding monitoring points and send the acquired videos to the preview equipment. Or the data acquisition equipment is always in a working state, and transmits the acquired video to the preview equipment in real time. After receiving the alarm information and the video corresponding to the monitoring point, the preview device displays the video of the monitoring point according to the alarm preview method provided by the embodiment of the application, so that security personnel can preview the abnormal site video and take corresponding measures to deal with the abnormality in time.

For another example, in another anti-theft alarm scenario, an anti-theft alarm and a data acquisition device are deployed at multiple monitoring points, and the data acquisition device is used for acquiring videos of corresponding monitoring points in real time and sending the videos to a preview device and a video analysis device. The video analysis equipment intelligently detects the received video, and when detecting that the video is abnormal, the video analysis equipment automatically alarms or triggers an alarm deployed by a corresponding monitoring point to alarm and sends alarm information to the preview equipment. After the preview device receives the alarm information, the video of the monitoring point is displayed according to the alarm preview method provided by the embodiment of the application. In such a scenario, if the data acquisition device has an intelligent analysis function, the data acquisition device itself may be used as a video analysis device.

In some scenarios, at least one alarm is deployed at one monitoring point, and in the case where a plurality of alarms are deployed at one monitoring point, the plurality of alarms may be of different kinds. Each alarm arranged at the monitoring point is linked with at least one data acquisition device, the data acquisition devices linked with the alarms can be different or can exist the same, and the number of the data acquisition devices linked with the alarms can be the same or different. Illustratively, alarm 1 is a smoke alarm, alarm 2 is an anti-theft alarm, alarm 1 links cameras a, b, c and d, and alarm 2 links cameras a, b and e. When the alarm 1 generates an alarm, the video displayed on the preview device comprises the videos collected by the cameras a, b, c and d, and when the alarm 2 generates an alarm, the video displayed on the preset device comprises the videos collected by the cameras a, b and e. When both alarm 1 and alarm 2 generate alarms, the video displayed on the preview device includes video captured by cameras a, b, c, d, and e.

The above examples are only examples in some application scenarios shown in the embodiments of the present application, and for how to deploy an alarm and a data acquisition device, how to detect an abnormality, how to trigger an alarm of the alarm, whether the data acquisition device is always on, how to obtain alarm information by a preview device, and the like, corresponding methods are different in different application scenarios, which is not limited in the embodiments of the present application. In addition, besides being applied to security scenes, the invention concept of the alarm preview method provided by the embodiment of the application can also be applied in an expanded way for other scenes needing to preview videos. It should be noted that any monitoring point mentioned in the embodiments of the present application is equivalent to any monitoring point, or may also be any monitoring area.

Next, a system architecture related to the alarm preview method provided in the embodiment of the present application is explained.

Fig. 1 is a system architecture diagram according to an alarm preview method provided in an embodiment of the present application. Referring to fig. 1, the system architecture includes a plurality of alarms 101, a plurality of data collection devices 102, and a preview device 103. Each alarm 101 of the plurality of alarms 101 is deployed at one of a plurality of monitoring points and each data collection device 102 of the plurality of data collection devices 102 is deployed at one of the plurality of monitoring points. Optionally, each alarm 101 in the plurality of alarms 101 is connected with the data acquisition device 102 disposed at the monitoring point in a wired or wireless manner for communication, each alarm 101 is connected with the preview device 103 in a wired or wireless manner for communication, and each data acquisition device 102 in the plurality of data acquisition devices 102 is connected with the preview device 103 in a wired or wireless manner for communication.

It should be noted that, in some scenarios, at least one alarm 102 is deployed at one monitoring point, and one alarm 101 is connected to at least one data acquisition device 102, that is, one alarm 101 is connected to at least one data acquisition device 102. Under the condition that one alarm 101 is connected with more than one data acquisition device 102, the video acquisition of different angles of the monitoring point is realized through the more than one data acquisition device 102 connected with the alarm 101. Different alarms 101 are linked with different data acquisition devices 102, or the data acquisition devices 102 linked with different alarms 101 are the same, which is not limited in the embodiment of the present application.

The plurality of alarms 101 are configured to generate an alarm when detecting that a corresponding monitoring point is abnormal, and send alarm information corresponding to the monitoring point to the preview device 103. Optionally, the plurality of alarms 101 are further configured to trigger the data acquisition device 102 deployed at the corresponding monitoring point to turn on when an alarm occurs, so as to acquire a video of the corresponding monitoring point.

Each data acquisition device 102 of the plurality of data acquisition devices 102 is configured to acquire a video of a corresponding monitoring point, and send the acquired video to the preview device 103. Optionally, each data acquisition device 102 is turned on when receiving a trigger of an alarm deployed at the monitoring point, and acquires a video of the corresponding monitoring point. Or, each data acquisition device 102 is always in an operating state, that is, a video of a corresponding monitoring point is acquired in real time, and the acquired video is sent to the preview device in real time.

The preview device 103 is configured to display a video of a monitoring point generating an alarm in a preview window according to the alarm preview method provided in the embodiment of the present application when acquiring alarm information corresponding to the monitoring point generating the alarm.

Optionally, under the condition that the data acquisition device 102 is always in the working state and transmits the acquired video to the preview device 103 in real time, the preview device 103 detects the received video of each monitoring point, when it is detected that the video of one monitoring point is abnormal, it is determined that the monitoring point corresponds to an alarm and determines an alarm message corresponding to the monitoring point, and the preview device 103 transmits an alarm signal to the alarm 101 deployed at the monitoring point to trigger the alarm 101 to alarm.

Or, the data acquisition device 102 detects the acquired video, determines to generate an alarm when detecting that the acquired video is abnormal, determines alarm information, sends the alarm information to the preview device 103, and sends an alarm signal to the alarm 101 deployed at the monitoring point to trigger the alarm 101 to alarm.

Alternatively, the system architecture further comprises a video analysis device, each data acquisition device 102 of the plurality of data acquisition devices 102 further communicates with a wired or wireless connection with the video analysis device, and the video analysis device communicates with the preview device 103 via a wired or wireless connection. The data acquisition device 102 is further configured to send a video acquired in real time to a video analysis device, the video analysis device detects the received video, when it is detected that a video of a monitoring point in the video is abnormal, determines that the monitoring point corresponds to generate an alarm, determines an alarm message corresponding to the monitoring point, and sends the alarm message to the preview device 103. In addition, the data acquisition device 102, the video analysis device or the preview device 103 sends an alarm signal to the alarm 101 deployed at the monitoring point to trigger the alarm 101 to alarm.

The system architecture may not include an alarm, if the data acquisition device 102 has a specific intelligent analysis function, the data acquisition device 102 detects the acquired video, and when it is detected that the acquired video is abnormal, it is determined that an alarm is generated, and an alarm message is determined, and the alarm message is sent to the preview device 103; if the video analysis device performs intelligent analysis, the data acquisition device 102 sends the acquired video to the video analysis device, and the video analysis device determines to generate an alarm and determines alarm information when detecting that the acquired video is abnormal, and sends the alarm information to the preview device 103.

As can be seen from the above description, there are many ways for the preview device 103 to acquire the alarm information, and this is not limited in this embodiment of the present application. In addition, how to detect the abnormality, how to trigger the alarm to alarm, whether the data acquisition equipment is always started to work, and the embodiment of the application also does not limit the operation.

In this embodiment of the present application, each alarm 101 in the multiple alarms 101 and the data acquisition device 102 connected to the corresponding alarm 101 serve as one channel of an alarm, that is, in this embodiment of the present application, a multichannel alarm monitoring system is formed by using the multichannel alarm monitoring, and the preview device 103, the alarms 101 disposed at the multiple monitoring points, and the data acquisition device 102, and optionally, the system shown in fig. 1 is referred to as a multichannel alarm monitoring system.

In the embodiment of the present application, the plurality of alarm devices 101 are the same or different, each alarm device 101 is any one of a smoke alarm device, a combustible gas alarm device, an anti-theft alarm device, and the like, and each alarm device 101 can generate one or more types of alarms. The plurality of data acquisition devices 102 are the same or different, and each data acquisition device 102 is any device having a video acquisition function, such as various types of devices including a surveillance camera, a mobile phone, a computer, a camera, and the like. The preview device 103 is any electronic device having a multi-window video playing function, such as a computer, a monitor, a mobile phone, a projection device, and the like, and the preview device 103 may be a single device or may be composed of a plurality of devices having a display function, which is not limited in this embodiment of the present application. The video analysis device is any device with a video analysis function, such as a mobile phone, a personal computer, and the like, and also includes a server, a server cluster formed by a plurality of servers, or a cloud computing service center.

The following explains the method for previewing an alarm provided in the embodiment of the present application in detail.

Fig. 2 is a flowchart of an alarm preview method according to an embodiment of the present application, which is described by taking an example of the application of the method to a preview device. Referring to fig. 2, the method includes the following steps.

Step 201: and acquiring first alarm information corresponding to the first monitoring point.

In the embodiment of the application, the alarms are deployed at the multiple monitoring points for alarming, the data acquisition devices are deployed at the multiple monitoring points for acquiring videos of the monitoring points generating the alarm, the preview device is used for acquiring alarm information corresponding to the monitoring points generating the alarm, and the videos of the monitoring points generating the alarm are displayed in the preview window.

In the embodiment of the present application, an alarm is generated corresponding to the first monitoring point, and the preview device obtains the first alarm information corresponding to the first monitoring point.

It can be known from the foregoing that, preview equipment acquires alarm information in many ways, for example, an alarm deployed at a first monitoring point is a first alarm, and after the first monitoring point is abnormal and triggers the first alarm to alarm, the first alarm sends first alarm information corresponding to the first monitoring point to preview equipment.

For another example, a data acquisition device deployed at a first monitoring point is a first data acquisition device, the first data acquisition device is always in a working state, the first data acquisition device acquires a video of the first monitoring point and sends the video to a preview device in real time, the preview device detects the video of the first monitoring point, and when the video of the first monitoring point is detected to be abnormal, first alarm information corresponding to the first monitoring point is determined.

If the first data acquisition equipment is always in a working state, the first data acquisition equipment detects the acquired video of the first monitoring point in real time, determines first alarm information corresponding to the first monitoring point when the video of the first monitoring point is detected to be abnormal, and sends the first alarm information to the preview equipment.

Or the first data acquisition device is always in a working state, the first data acquisition device sends the acquired video of the first monitoring point to the video analysis device, the video analysis device detects the video of the first monitoring point, when the video of the first monitoring point is detected to be abnormal, first alarm information corresponding to the first monitoring point is determined, and the first alarm information is sent to the preview device.

In a scenario where the first alarm device detects an abnormality and an alarm is generated, that is, in a scenario where an abnormality is generated at the first monitoring point and an alarm of the first alarm device is triggered, the sensor in the first alarm device detects the abnormality, for example, the sensor in the smoke alarm device, the infrared sensor in the burglar alarm device, and the like. In a scene that an alarm is given by detecting a video to determine that an abnormality occurs, there are many methods for detecting whether the abnormality exists in the video, for example, video analysis and image analysis based on a deep learning technique, and the embodiments of the present application do not limit this.

Optionally, the first alarm information includes a first alarm generation source and a first alarm type, where the first alarm generation source refers to information of a first data acquisition device and/or a first alarm, the first data acquisition device is configured to acquire a video of a first monitoring point, and the first alarm is configured to alarm the first monitoring point. That is, the alarm information in the embodiment of the present application includes an alarm generation source and an alarm type, and the same-source and same-type alarm information is regarded as the same alarm information. The same source and the same type mean that the data acquisition equipment is the same and the alarm type is the same, or the alarm is the same and the alarm type is the same, or the data acquisition equipment is the same, the alarm is the same and the alarm type is the same.

Alternatively, in the case where only one alarm and one data acquisition device are deployed at one monitoring point, the alarm, and the data acquisition device may be considered to correspond to one another. In this case, the alarm generation source may be understood as the alarm itself, may also be understood as the data acquisition device linked with the alarm, may also be understood as the monitoring point, may also be understood as the channel to which the alarm belongs, and the essence is the same. In this case, the information of the first data acquisition device includes one or more of a device identifier of the first data acquisition device, a location identifier of the first monitoring point, and a channel identifier of a channel to which the first data acquisition device belongs. Similarly, the information of the first alarm may also include one or more of an equipment identifier of the first alarm, a location identifier of the first monitoring point, and a channel identifier of a channel to which the first data acquisition equipment belongs.

Optionally, when one monitoring point allows deployment of more than one alarm, each alarm is linked with more than one data acquisition device, and the data acquisition devices linked with the alarms are allowed to be the same, the monitoring point, the alarm and the data acquisition device are not in one-to-one correspondence, in this case, the information of the first data acquisition device may refer to a device identifier of the first data acquisition device, the information of the first alarm refers to a device identifier of the first alarm, and the alarm occurrence source may be understood as the alarm itself or the data acquisition device itself. For example, in some scenarios, detection of an anomaly by an alarm may generate an alarm, and the source of the alarm may be considered an alarm, and in other scenarios, detection of a video anomaly by a data capture device or other device may trigger the alarm to generate an alarm, and the source of the alarm may be considered a data capture device.

Optionally, the first alarm type is represented by a type identifier, such as type 1, type 2, type 3, etc., or type a, type B, type C, etc. Illustratively, the finding of suspicious persons is represented by type 1 or type a, the finding of a fire point is represented by type 2 or type B, and the occurrence of a vehicle collision is represented by type 3 or type C. It should be noted that, in different monitoring scenarios, the set alarm types are different, and this is not limited in the embodiment of the present application.

Optionally, the first alarm information includes a first alarm generation source, and the same as the first alarm information refers to the same as the first alarm generation source, that is, the same alarm information is considered as the same alarm information as long as the same source of alarm information. The homology refers to the same data acquisition equipment, or the same alarm, or the same data acquisition equipment and the same alarm.

In the embodiment of the application, when the preview device acquires the first alarm information corresponding to the first monitoring point, the preview device further acquires a video of the first monitoring point for subsequent display in a preview window. For example, after the first alarm sends the first alarm information to the preview device, the first alarm further triggers at least one first data acquisition device deployed by the first monitoring point to be started to acquire a video, and the at least one first data acquisition device sends the video acquired by the first monitoring point to the preview device. After receiving the first alarm information, the preview device displays the video of the monitoring point in the corresponding preview window according to the method provided by the embodiment of the application. For another example, when the preview device receives the video of the first monitoring point sent by the first data acquisition device in real time, assuming that the preview device does not display the video of the first monitoring point in the preview window before receiving the first alarm information, that is, the first monitoring point does not generate an alarm in a short time, the preview device stores the video received the first monitoring point, and after receiving the first alarm information, reads the video of the first monitoring point and displays the video in the preview window.

The implementation of the preview device displaying the video of the first monitoring point in the corresponding preview window will be described in detail in step 202 and step 203.

Step 202: and if one or more opened preview windows exist, acquiring alarm information corresponding to the video displayed in the one or more opened preview windows to obtain one or more second alarm information.

In the embodiment of the application, the preview device firstly detects whether the preview device has an opened preview window, and if one or more opened preview windows exist, the preview device acquires alarm information corresponding to videos displayed in the one or more opened preview windows to obtain one or more second alarm information.

Illustratively, a preview window list is stored in the preview device, and the preview window list is used for storing the corresponding relationship between the window identifier of the opened preview window and the alarm information. If the preview window list is empty, the preview device determines that one or more opened preview windows do not exist, if the preview window list is not empty, the preview device determines that one or more opened preview windows exist, the preview window corresponding to the window identifier stored in the preview window list is the one or more opened preview windows, and the preview device acquires alarm information corresponding to the one or more opened preview windows from the corresponding relation stored in the preview window list to obtain one or more second alarm information.

Or the preview device is configured with the number of preview windows and the corresponding number of preview windows, the preview device stores the corresponding relationship among the window identifier, the opening state and the alarm information of each preview window, the opening state is 0 to indicate that the corresponding preview window is not opened, and the opening state is 1 to indicate that the corresponding preview window is opened. If the configured opening states of all the preview windows are all 0, the preview device determines that no opened preview window exists, if the configured opening states of the preview windows are not all 0, the preview device determines that one or more opened preview windows exist, the preview window with the opening state of 1 is the one or more opened preview windows, and the preview device acquires alarm information corresponding to the one or more opened preview windows from the stored corresponding relation among the window identification, the opening states and the alarm information to obtain one or more second alarm information.

Step 203: if it is detected that second alarm information identical to the first alarm information exists in the one or more second alarm information, continuously displaying the video of the first monitoring point in a first preview window, wherein the first preview window is a started preview window corresponding to the second alarm information identical to the first alarm information.

In the embodiment of the application, after one or more pieces of second alarm information are obtained, the preview device detects whether second alarm information identical to the first alarm information exists in the one or more pieces of second alarm information. If it is detected that second alarm information identical to the first alarm information exists in the one or more pieces of second alarm information, the preview device continues to display the video of the first monitoring point in a first preview window, and the first preview window is a started preview window corresponding to the second alarm information identical to the first alarm information.

That is, if the video of the first monitoring point is being displayed in the first preview window when the first alarm information is acquired, and the alarm information corresponding to the video displayed in the first preview window is the same as the first alarm information, the preview device continues to display the video of the first monitoring point in the first preview window, that is, the combined preview is performed.

In the embodiment of the application, before the video of the first monitoring point is continuously displayed in the first preview window, the first preview window displays the video of the first monitoring point, and the continuously displayed video and the displayed video are videos acquired by the same data acquisition equipment. That is, videos collected by the same data collection device are merged and previewed.

It should be noted that, in the case that the first alarm is linked with one first data acquisition device, the video of the first monitoring point is acquired by one first data acquisition device and displayed through one preview window, and continuing to display the video of the first monitoring point in the first preview window means to continue to display the video acquired by the first data acquisition device in one first preview window, that is, to merge and preview the video acquired by one data acquisition device each time. Optionally, in a case that the first alarm is linked with a plurality of first data acquisition devices, the video of the first monitoring point is acquired by the plurality of first data acquisition devices and displayed by the plurality of preview windows, and continuing to display the video of the first monitoring point in the first preview window means continuing to display the videos which are already previewed in one or more first preview windows respectively, that is, the videos acquired by one or more data acquisition devices may be combined and previewed each time.

In the embodiment of the application, the first alarm information is regarded as the generated new alarm information, after a new alarm is generated, if a first preview window for previewing videos of the same alarm information exists, the video of the first monitoring point is continuously displayed on the first preview window, namely, the video of the first monitoring point is continuously displayed on the first preview window in a linkage manner without opening a new preview window, so that unnecessary opening of the preview window can be reduced, and the resource waste of the preview window is reduced.

It can be known from the foregoing that the alarm information is the same, which means that the alarm information is of the same source and the same type, or the alarm information is of the same source. The same source and the same type mean that the data acquisition equipment is the same and the alarm type is the same, or the alarm is the same and the alarm type is the same, or the data acquisition equipment is the same, the alarm is the same and the alarm type is the same. The homologous means that the data acquisition devices are the same, or the alarms are the same, or the data acquisition devices are the same and the alarms are the same.

Exemplarily, assuming that the alarm information is the same, the same type of the alarm information refers to the same data acquisition device and the same alarm type, and after a new alarm is generated, if a preview window for previewing the same data acquisition device and the same alarm type of an alarm video exists, the previewing window for previewing the video corresponding to the new alarm does not occupy the new preview window for previewing the linked monitoring point, but the video acquired by the data acquisition device is continuously displayed on the first preview window. That is, as long as the data acquisition devices in alarm linkage are the same and the alarm types are the same, no matter which alarm generates the alarm, the video of the monitoring point corresponding to the alarm is displayed in the same preview window so as to prompt security personnel that the monitoring point is generating the alarm of the type.

In an example 1, it is assumed that the alarm types of alarms generated by an alarm 1 and an alarm 2 are the same, the alarm 1 is linked with data acquisition devices a, b and c, the alarm 2 is linked with the data acquisition devices a, b and d, when the alarm 1 generates an alarm, videos acquired by the data acquisition devices a, b and d linked with the alarm 2 are displayed in 3 preview windows by preview devices, then the preview devices display the continuously corresponding videos in the preview windows displaying the data acquisition devices a and b, and the preview devices start a new preview window to display the videos acquired by the data acquisition devices c.

Example 2, when the data acquisition device a generates an a alarm (for example, it is detected that the same kind of abnormal condition occurs in a video picture), the preview device displays the video acquired by the data acquisition device a in a preview window, and the video is also started when the data acquisition device a generates the a alarm, the video acquired by the data acquisition device a is continuously displayed in the preview window.

Assuming that the alarm information is the same, namely the alarm information is the same, the same alarm type is the same, and the same alarm type is the same, after a new alarm is generated, if a preview window for previewing the alarm video corresponding to the same alarm and having the same alarm type exists, the new alarm does not occupy the new preview window for linkage monitoring point preview, namely, the new preview window is not opened to display the video of the first monitoring point, but the video of the first monitoring point is continuously displayed on the first preview window. That is, as long as the same alarm type of the alarm generated by the same alarm device is used, the video of the monitoring point corresponding to the alarm is displayed in the same preview window.

Example 3, the alarm 1 is linked with the data acquisition devices a, b, and c, when the alarm 1 generates a first type of alarm, and after the preview device acquires alarm information corresponding to the alarm, if videos acquired by the data acquisition devices a, b, and c linked with the alarm 1 have been previewed in 3 preview windows, respectively, and the alarms corresponding to the videos displayed in the 3 preview windows are also the first type of alarm generated by the alarm 1 (for example, the alarm reports an alarm again before the displayed preview window is closed), it is sufficient to continue to display the videos acquired by the data acquisition devices a, b, and c in the 3 preview windows, respectively.

If the same alarm information is assumed to be the same, the same alarm type refers to the same data acquisition equipment, the same alarm and the same alarm type, and after a new alarm is generated, if the same alarm, the same data acquisition equipment and the same type of alarm are previewed, the new alarm does not occupy a new preview window, but continues to display the video of the first monitoring point in the first preview window. That is, as long as the alarms of the alarm are the same, the data acquisition devices are the same, and the alarm types are the same, the videos of the monitoring points corresponding to the alarms are displayed in the same preview window.

Assuming that the alarm information is the same, the same is the same data acquisition equipment, and after a new alarm is generated, as long as a preview window previews the video of the same data acquisition equipment, the video of the monitoring point acquired by the data acquisition equipment is continuously displayed in the preview window without occupying a new preview window. That is, as long as the data acquisition equipment of the alarm is the same, no matter which alarm generates which type of alarm, the preview can be continued without occupying a new window.

Example 4, assuming that the alarm types of the alarms generated by the alarm 1 and the alarm 2 are different, the alarm 1 is linked with the data acquisition devices a, b, and c, and the alarm 2 is linked with the data acquisition devices a, b, and d. When the alarm 1 gives an alarm, the preview equipment displays videos acquired by the data acquisition equipment a, b and d linked with the alarm 2 in 3 preview windows, and because the data acquisition equipment a and b linked with the alarm 1 are the same as the data acquisition equipment a and b linked with the alarm 2, the windows a and b can continue to display, and the preview equipment starts 1 new preview window to display the videos acquired by the data acquisition equipment c. Optionally, the preview device displays the corresponding alert type in each preview window.

If the alarm information is the same, namely the alarm information is the same, and the same source refers to the same alarm, after a new alarm is generated, as long as a preview window previews the video corresponding to the same alarm, the preview is continued. That is, no matter what type of alarm the alarm newly generates, it is enough to continue previewing the video collected by the data collection device linked with the alarm without occupying a new window.

If the alarm information is the same, the same source refers to the same data acquisition equipment and the same alarm, and after a new alarm is generated, as long as a preview window previews the video of the same alarm and the same data acquisition equipment, the video acquired by the data acquisition equipment is continuously previewed. That is, no matter what type of alarm is newly generated by the alarm, as long as the corresponding data acquisition devices are the same, the video acquired by the data acquisition device linked with the alarm can be continuously previewed without occupying a new window.

Optionally, in the case of the homologous alarm merge preview, if the alarm type of the new alarm is different from the alarm type of the video being previewed in the first preview window, after the video of the first monitoring point is continuously displayed in the first preview window, the preview device further displays the alarm type of the new alarm in the first preview window, that is, displays the first alarm type. That is, as long as the data acquisition devices in alarm linkage are the same, videos corresponding to the monitoring points are displayed in the same preview window, and each alarm type corresponding to the monitoring points is displayed in the preview window, so as to prompt security personnel that one or more different types of alarms occur at the monitoring points.

Example 4, assuming that alarm types of alarms generated by the alarm 1 and the alarm 2 are different, the alarm 1 is linked with the data acquisition devices a, b, and c, and the alarm 2 is linked with the data acquisition devices a, b, and d, after the alarm information corresponding to the alarm 1 is obtained, if videos acquired by the data acquisition devices a, b, and d linked with the alarm 2 have been previewed in 3 preview windows, the videos acquired by the data acquisition devices a and b are continuously displayed in the preview windows of the data acquisition devices a and b, and the preview device starts a new preview window to display the video acquired by the data acquisition device c. Optionally, the preview device displays the corresponding alert type in each preview window.

Optionally, after the video of the first monitoring point continues to be displayed in the first preview window, the preview device may further update the preview end time corresponding to the first preview window according to the time when the first alarm information is acquired. For example, the preview device updates the preview end time of the first preview window according to the first preview duration and the time when the first alarm information is acquired. The first preview time length is a set fixed time length, or the first preview time length is a preview time length corresponding to a first alarm type and/or a first alarm generating source included in the first alarm information, and one alarm type and/or one alarm generating source corresponds to one preview time length.

Illustratively, the preview device updates the preview end time corresponding to the first preview window to a time corresponding to a fixed time length from a first time, where the first time is a time when the first alarm information is acquired, that is, the first time is added with a fixed time length to obtain the corresponding preview end time. Illustratively, the first time is 8 am 00, and the fixed time duration is 10 minutes, then the current update preview end time is 8.

Optionally, each alarm type corresponds to one alarm duration, and the preview device updates the preview end time corresponding to the first preview window according to the first time and the preview duration corresponding to the first alarm type. Illustratively, the preview device determines a corresponding alarm duration according to the first alarm type, and updates a time corresponding to the alarm duration after the first time to a preview end time corresponding to the first preview window. Optionally, the higher the alarm importance level corresponding to the alarm type is, the longer the preview duration corresponding to the alarm type is set.

Optionally, each alarm generation source corresponds to one alarm duration, and the preview device updates the preview end time corresponding to the first preview window according to the first time and the preview duration corresponding to the first alarm generation source. Illustratively, the preview device determines a corresponding alarm duration according to the first alarm occurrence source, and updates a time corresponding to the alarm duration after the first time to a preview end time corresponding to the first preview window. Optionally, the higher the alarm importance level corresponding to the alarm generation source is, the longer the preview duration corresponding to the alarm type is set.

Optionally, each alarm type and alarm generation source are used as a group, each group corresponds to one alarm duration, and the preview device updates the preview end time corresponding to the first preview window according to the first time and the preview duration corresponding to the group. Illustratively, the preview device determines a corresponding alarm duration according to the alarm type and the alarm occurrence source, and updates a time corresponding to the alarm duration after the first time to a preview end time corresponding to the first preview window. Optionally, the higher the alarm importance level corresponding to the alarm type and the alarm generation source is, the longer the preview duration corresponding to the alarm type is set.

Optionally, the first preview window is closed when a preview end time of the first preview window is reached. Or before the preview ending time corresponding to the first preview window, if the preview device receives an ending preview instruction about the first preview window, the preview device closes the first preview window and ends the preview of the first monitoring point. For example, if an alarm corresponding to the first preview window is processed (for example, a security protection person clicks a "processed alarm" button to indicate that the alarm is processed, and a preview ending instruction is triggered), the preview device closes the first preview window, or the security protection person operates the preview device to close the first preview window.

As can be seen from the above, after a new alert is generated, the preview device displays a video of the new alert in a preview window, such as the first preview window, and the preview device updates the preview end time corresponding to the first preview window to be associated with the new alert.

Optionally, after the video of the first monitoring point continues to be displayed in the first preview window, the preview device further displays alarm prompt information corresponding to the first preview window, where the alarm prompt information corresponding to the first preview window includes at least alarm frequency information.

The first alarm frequency indicates the frequency of corresponding alarm accumulation after the first preview window is opened for the last time; and/or the presence of a gas in the gas,

the alarm frequency information comprises one or more second alarm frequencies, any one of the one or more second alarm frequencies corresponds to one alarm generating source, and any one of the second alarm frequencies indicates the frequency of accumulated alarms of the corresponding alarm generating source after a preview window is opened for the last time; and/or the presence of a gas in the gas,

the alarm frequency information comprises one or more third alarm frequencies, any one of the one or more third alarm frequencies corresponds to one alarm generation source and one alarm type, and any one of the one or more third alarm frequencies indicates that the corresponding alarm generation source accumulatively generates the alarm frequency of the corresponding alarm type after the first preview window is opened for the last time; and/or the presence of a gas in the gas,

the alarm frequency information comprises one or more fourth alarm frequencies, any one of the one or more fourth alarm frequencies corresponds to one alarm type, and any one of the fourth alarm frequencies indicates that the alarm frequencies of the corresponding alarm types are generated in an accumulated mode after the first preview window is opened last time.

Optionally, the preview device displays corresponding alarm prompt information in the first preview window, for example, the preview device displays corresponding alarm prompt information in each preview window. Or, the preview device displays the alarm prompt information in an area outside the preview window on the self screen, for example, displays the alarm prompt information of each preview window at the side in the screen.

Taking the example of displaying the corresponding alarm prompt information in the first preview window, the alarm previews are combined and divided into a plurality of manners, so that the corresponding alarm prompt information also has a plurality of display manners, and the display manners can be used alone or in combination, which is not limited in the embodiment of the present application.

In the first display mode of the alarm prompt information, a first alarm frequency is displayed in a first preview window, and the first alarm frequency indicates the frequency of corresponding alarm accumulation after the first preview window is opened for the last time, namely no matter which source and which type of alarm are combined, the alarm frequency is updated accumulatively every time the source and the type of alarm are combined. Optionally, in this manner, detailed information of the corresponding alarm occurrence source and alarm type may also be displayed.

In a second display mode of the alarm prompt information, one or more second alarm times are displayed in a first preview window, each second alarm time corresponds to one alarm generation source, and each second alarm time indicates the cumulative alarm times of the corresponding alarm generation source after the first preview window is opened last time. That is, for the first preview window of the previewing video, the alarm times of different alarm generating sources are respectively displayed to prompt security personnel of the accumulated alarm times of each alarm generating source. Optionally, in this manner, detailed information of the alarm occurrence source and the alarm type corresponding to each second alarm count may also be displayed.

And in a third display mode of the alarm prompt information, one or more third alarm times are displayed in the first preview window, each third alarm time corresponds to one alarm generating source and one alarm type, and each third alarm time indicates that the alarm times of the corresponding alarm types are generated by accumulating the corresponding alarm generating sources after the first preview window is opened for the last time. That is, for the first preview window in which the video is being previewed, the alarm times of different alarm generation sources and different alarm types are respectively displayed to prompt security personnel to accumulate the times of generating each type of alarm for each alarm generation source. Optionally, in this way, detailed information of the alarm occurrence source and the alarm type corresponding to each third alarm number may also be displayed.

And in a fourth display mode of the alarm prompt information, one or more fourth alarm times are displayed in the first preview window, each fourth alarm time corresponds to one alarm type, and each fourth alarm time indicates that the alarm times of the corresponding alarm types are accumulated after the first preview window is opened for the last time. That is, for the first preview window in which the video is being previewed, the alarm times of different alarm types are respectively displayed to prompt security personnel of the number of times of accumulated generation of each type of alarm. Optionally, in this manner, detailed information of the alarm generation source and the alarm type corresponding to each fourth number of alarms may also be displayed.

Therefore, when the first alarm information is obtained, if the video of the first monitoring point is continuously displayed in the first preview window, it is considered that one preview combination is generated, and the preview device updates the alarm prompt information corresponding to the first preview window and displays the alarm prompt information corresponding to the first preview window. The alarm prompt information at least comprises alarm frequency information, and in some embodiments, the alarm prompt information further comprises alarm source information and/or alarm type information. The alarm frequency information is displayed for prompting the first monitoring point to repeatedly generate the same alarm continuously for multiple times. In other embodiments, the alarm prompt information may also include one or more of alarm times information, alarm source information, and alarm type information.

For example, after a monitoring point generates an alarm for the first time, a preview window is opened on a preview device to preview a video of the monitoring point associated with the alarm, that is, the video of the monitoring point is displayed, and each alarm triggers a preview linkage under the condition that the alarm is continuously and repeatedly generated. And before the preview window does not finish the preview, namely before the preview finish time of the preview window is not reached, continuously generating continuous repeated alarm, still linking the alarm in the preview window, displaying the video of the corresponding monitoring point, and updating and displaying the alarm times when the alarm is repeated once.

Taking the foregoing example 4 as an example, assuming that a first number of alarms are displayed, the preview device continues to update the number of alarms displayed in the preview windows of the data capture devices a and b plus 1 after the preview device continues to display the videos captured by the data capture devices a and b in the preview windows.

In the embodiment of the application, if it is not detected that the one or more pieces of second alarm information have the same alarm information as the first alarm information, the preview device opens a second preview window, and displays the video of the first monitoring point in the second preview window. That is, after the first alarm information is acquired, if an opened preview window exists, but there is no preview window corresponding to the video being previewed and identical to the first alarm information in the currently opened preview window, the preview device opens the second preview window to display the video of the first monitoring point.

Optionally, in the application embodiment, when the first alarm information is acquired, if there is no opened preview window, the preview device opens a second preview window, and displays a video of the first monitoring point in the second preview window. That is, if a preview window is not currently opened in the preview device when a new alarm is generated, the preview device directly opens the second preview window to display the video of the monitoring point corresponding to the new alarm.

Optionally, after the preview device displays the video of the first monitoring point in the second preview window, the preview device may further set a preview end time of the second preview window according to the time when the first alarm information is obtained, that is, regarding the alarm corresponding to the first alarm information as a new alarm, and setting the preview end time of the second preview window to be associated with the new alarm.

Optionally, the preview device can also display the alarm prompt information corresponding to the second preview window. For the related description of the alarm prompt information corresponding to the second preview window, reference may be made to the foregoing related description, which is not described herein again. It is assumed that the alarm prompt information corresponding to the second preview window is displayed in the second preview window, and the alarm prompt information corresponding to the second preview window includes a second alarm frequency, where the second alarm frequency is an initial value of the alarm frequency, for example, the initial value of the alarm frequency is 1. That is, in the case where a preview window is newly opened to display an alarm, an initial value of the number of alarms is displayed in the preview window to indicate that the alarm has occurred for the first time recently.

In the above embodiments, for example, the alarm information corresponding to the first monitoring point is obtained, and the video of the first monitoring point is displayed, the alarm preview method provided in the embodiment of the present application is introduced, and for other monitoring points except the first monitoring point in the plurality of monitoring points, the video of the monitoring point generating the alarm is displayed according to the same method as the first monitoring point, which is not described herein again.

Next, the method for previewing an alarm provided in the embodiment of the present application will be explained with reference to fig. 3. Fig. 3 is a flowchart of another method for previewing an alarm according to an embodiment of the present disclosure. Referring to fig. 3, the method includes the following steps.

1. A new alarm is generated.

2. And judging whether the new alarm has the same type of homologous alarm (or whether the new alarm has the same type of homologous alarm) according to the alarm information and previewing the new alarm. If no alarms of the same type (or source) are being previewed, steps 3 and 4 continue. If there are alarms from the same source (or source) that are previewing, steps 5 and 6 continue.

3. And opening a preview window to link the monitoring point corresponding to the new alarm for previewing, and setting and displaying the alarm frequency to be 1.

4. The preview end time of the newly opened preview window is set to be associated with the new alert.

5. And continuously displaying the video of the monitoring point corresponding to the new alarm in a preview window for previewing the alarms of the same source and the same type (or the same source), and updating the alarm times displayed in the preview window.

6. The preview end time of the preview window is set in association with the new alert.

Referring to fig. 4 and 5, in the case that the same alarm (assumed to be the same alarm generating source and the same alarm type) is generated in 8 consecutive repetitions, fig. 4 is a preview effect diagram of a repeat alarm non-merger provided by an embodiment of the present application, and fig. 5 is a preview effect diagram of a repeat alarm merger provided by an embodiment of the present application.

In fig. 4, the preview device starts 8 preview windows linked with the same monitoring point for previewing, and the alarm generation source is Camera 1 (Camera 1, C1) and the alarm type is type 1 are all displayed in the 8 preview windows. The 8 preview windows preview the same-source and same-type alarms, so that resource waste can be caused, and under the condition that the resources of the preview windows are limited, if other monitoring points generate alarms or other types of alarms are generated, the resources of the preview windows are insufficient, more different alarms cannot be displayed, security personnel cannot preview on-site videos of some alarms, appropriate countermeasures cannot be taken in time, and certain influence is caused on security and protection capacity.

In fig. 5, the preview device only opens one preview window to link with the corresponding monitoring point for previewing, resources of the preview window are reasonably utilized, the preview window can display more different alarms under the condition that the resources of the preview window are limited, security personnel can take measures in time to deal with more alarms, and the security capability is effectively improved. In addition, the alarm frequency is displayed to be 8 so as to prompt that the alarm is continuously and repeatedly generated and measures need to be taken in time.

All the optional technical solutions can be combined arbitrarily to form an optional embodiment of the present application, which is not described in detail herein.

In summary, in the embodiment of the present application, when an alarm is generated at one monitoring point, that is, when a new alarm is generated, if there is an alarm information corresponding to a video being previewed in a preview window that is the same as the alarm information of the new alarm, it indicates that the new alarm is a repeatedly generated alarm, and the video of the monitoring point generating the alarm is previewed. Under the condition, the video of the monitoring point is continuously displayed in the preview window without opening a preview window, so that the unnecessary opening of the preview window can be reduced, the resource waste of the preview window is reduced, and the alarm preview can be reasonably carried out.

Fig. 6 is a schematic structural diagram of an alarm preview device 600 according to an embodiment of the present application. The alarm preview apparatus 600 may be implemented by software, hardware or a combination of the two as part or all of a computer device, and optionally, the computer device is a preview device in the above embodiments. Referring to fig. 6, the apparatus 600 includes: a first obtaining module 601, a second obtaining module 602 and a first display module 603.

A first obtaining module 601, configured to obtain first alarm information corresponding to a first monitoring point;

a second obtaining module 602, configured to, if one or more opened preview windows exist, obtain alarm information corresponding to a video displayed in the one or more opened preview windows, to obtain one or more second alarm information;

the first display module 603 is configured to, if it is detected that second alarm information that is the same as the first alarm information exists in the one or more pieces of second alarm information, continue to display the video of the first monitoring point in a first preview window, where the first preview window is a started preview window corresponding to the second alarm information that is the same as the first alarm information.

the first alarm information comprises a first alarm generation source and a first alarm type, the first alarm generation source refers to information of first data acquisition equipment and/or a first alarm, the first data acquisition equipment is used for acquiring videos of a first monitoring point, the first alarm is used for alarming the first monitoring point, and the first alarm information is the same as the first alarm generation source and the first alarm type;

or the first alarm information comprises a first alarm generation source, and the first alarm information is the same as the first alarm generation source;

optionally, the apparatus 600 further comprises:

the first updating module is used for updating the preview ending time of the first preview window according to the first preview duration and the moment when the first alarm information is acquired;

the first preview time length is a set fixed time length, or the first preview time length is a preview time length corresponding to a first alarm type included in the first alarm information, and one alarm type corresponds to one preview time length;

optionally, the apparatus 600 further comprises:

the first closing module is used for closing the first preview window when the preview ending time of the first preview window is reached; or,

the second closing module is used for closing the first preview window after receiving the preview finishing instruction before the preview finishing time of the first preview window is reached;

optionally, the apparatus 600 further comprises:

the second display module is used for displaying the alarm prompt information corresponding to the first preview window, and the alarm prompt information corresponding to the first preview window at least comprises alarm frequency information;

the alarm frequency information comprises a first alarm frequency which indicates the frequency of corresponding alarm accumulation after the first preview window is opened for the last time; and/or the presence of a gas in the gas,

the alarm frequency information comprises one or more second alarm frequencies, any one of the one or more second alarm frequencies corresponds to one alarm generating source, and any one of the one or more second alarm frequencies indicates the frequency of accumulated alarms of the corresponding alarm generating source after the first preview window is opened for the last time; and/or the presence of a gas in the gas,

the alarm frequency information comprises one or more fourth alarm frequencies, any one of the one or more fourth alarm frequencies corresponds to one alarm type, and any one of the fourth alarm frequencies indicates that the alarm frequencies of the corresponding alarm type are generated in an accumulated manner after the first preview window is opened for the last time;

optionally, the apparatus 600 further comprises:

the third display module is used for opening a second preview window and displaying the video of the first monitoring point in the second preview window if one or more pieces of second alarm information are detected to be absent, wherein the second alarm information is the same as the first alarm information;

optionally, the apparatus 600 further comprises:

the setting module is used for setting the preview ending time of the second preview window according to the moment of acquiring the first alarm information; and/or the presence of a gas in the gas,

and the fourth display module is used for displaying the alarm prompt information corresponding to the second preview window.

In the embodiment of the application, when an alarm is generated at one monitoring point, namely a new alarm is generated, if the alarm information corresponding to the video previewed by one preview window is the same as the alarm information of the new alarm, the new alarm is represented as a repeatedly generated alarm, and the video of the monitoring point generating the alarm is previewed. Under the condition, the video of the monitoring point is continuously displayed in the preview window without opening a preview window, so that unnecessary opening of the preview window can be reduced, resource waste of the preview window is reduced, and alarm preview can be reasonably performed.

It should be noted that: in the embodiment, when the alarm preview device previews an alarm, only the division of each function module is illustrated, and in practical application, the function distribution may be completed by different function modules according to needs, that is, the internal structure of the device is divided into different function modules to complete all or part of the functions described above. In addition, the alarm preview device and the alarm preview method provided by the above embodiments belong to the same concept, and the specific implementation process thereof is described in detail in the method embodiments, and is not described herein again.

Fig. 7 shows a block diagram of a terminal 700 according to an exemplary embodiment of the present application. The terminal 700 may be: a smartphone, a tablet computer, a laptop computer, or a desktop computer. Terminal 700 may also be referred to by other names such as computer device, user equipment, portable terminal, laptop terminal, desktop terminal, and so on. Optionally, in this embodiment of the present application, the terminal 700 is a preview device in the foregoing embodiment.

In general, the terminal 700 includes: a processor 701 and a memory 702.

The processor 701 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 701 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 701 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 701 may be integrated with a GPU (Graphics Processing Unit) that is responsible for rendering and drawing content that the display screen needs to display. In some embodiments, the processor 701 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

Memory 702 may include one or more computer-readable storage media, which may be non-transitory. Memory 702 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 702 is used to store at least one instruction for execution by processor 701 to implement the alert preview method provided by method embodiments herein.

In some embodiments, the terminal 700 may further optionally include: a peripheral interface 703 and at least one peripheral. The processor 701, the memory 702, and the peripheral interface 703 may be connected by buses or signal lines. Various peripheral devices may be connected to peripheral interface 703 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of a radio frequency circuit 704, a display screen 705, a camera assembly 706, an audio circuit 707, a positioning component 708, and a power source 709.

The peripheral interface 703 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 701 and the memory 702. In some embodiments, the processor 701, memory 702, and peripheral interface 703 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 701, the memory 702, and the peripheral interface 703 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.

The Radio Frequency circuit 704 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 704 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 704 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 704 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 704 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the radio frequency circuit 704 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.

The display screen 705 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 705 is a touch display screen, the display screen 705 also has the ability to capture touch signals on or above the surface of the display screen 705. The touch signal may be input to the processor 701 as a control signal for processing. At this point, the display screen 705 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display 705 may be one, providing the front panel of the terminal 700; in other embodiments, the display 705 can be at least two, respectively disposed on different surfaces of the terminal 700 or in a folded design; in other embodiments, the display 705 may be a flexible display disposed on a curved surface or a folded surface of the terminal 700. Even more, the display 705 may be arranged in a non-rectangular irregular pattern, i.e. a shaped screen. The Display 705 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), or the like. In the embodiment of the present application, the display screen 705 is used to display a video of the monitoring point that generated the alarm.

The camera assembly 706 is used to capture images or video. Optionally, the camera assembly 706 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and VR (Virtual Reality) shooting functions or other fusion shooting functions. In some embodiments, the camera assembly 706 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.

The audio circuitry 707 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 701 for processing or inputting the electric signals to the radio frequency circuit 704 to realize voice communication. For the purpose of stereo sound collection or noise reduction, a plurality of microphones may be provided at different portions of the terminal 700. The microphone may also be an array microphone or an omni-directional pick-up microphone. The speaker is used to convert electrical signals from the processor 701 or the radio frequency circuit 704 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, the audio circuitry 707 may also include a headphone jack.

The positioning component 708 is used to locate the current geographic Location of the terminal 700 for navigation or LBS (Location Based Service). The Positioning component 708 can be a Positioning component based on the GPS (Global Positioning System) in the united states, the beidou System in china, the graves System in russia, or the galileo System in the european union.

Power supply 709 is provided to supply power to various components of terminal 700. The power source 709 may be alternating current, direct current, disposable batteries, or rechargeable batteries. When power supply 709 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.

In some embodiments, terminal 700 also includes one or more sensors 710. The one or more sensors 710 include, but are not limited to: acceleration sensor 711, gyro sensor 712, pressure sensor 713, fingerprint sensor 714, optical sensor 715, and proximity sensor 716.

The acceleration sensor 711 can detect the magnitude of acceleration in three coordinate axes of a coordinate system established with the terminal 700. For example, the acceleration sensor 711 may be used to detect components of the gravitational acceleration in three coordinate axes. The processor 701 may control the display screen 705 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 711. The acceleration sensor 711 may also be used for acquisition of motion data of a game or a user.

The gyro sensor 712 may detect a body direction and a rotation angle of the terminal 700, and the gyro sensor 712 may cooperate with the acceleration sensor 711 to acquire a 3D motion of the terminal 700 by the user. From the data collected by the gyro sensor 712, the processor 701 may implement the following functions: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization while shooting, game control, and inertial navigation.

Pressure sensors 713 may be disposed on a side frame of terminal 700 and/or underneath display 705. When the pressure sensor 713 is disposed on a side frame of the terminal 700, a user's grip signal on the terminal 700 may be detected, and the processor 701 performs right-left hand recognition or shortcut operation according to the grip signal collected by the pressure sensor 713. When the pressure sensor 713 is disposed at a lower layer of the display screen 705, the processor 701 controls the operability control on the UI interface according to the pressure operation of the user on the display screen 705. The operability control comprises at least one of a button control, a scroll bar control, an icon control, and a menu control.

The fingerprint sensor 714 is used for collecting a fingerprint of a user, and the processor 701 identifies the identity of the user according to the fingerprint collected by the fingerprint sensor 714, or the fingerprint sensor 714 identifies the identity of the user according to the collected fingerprint. When the user identity is identified as a trusted identity, the processor 701 authorizes the user to perform relevant sensitive operations, including unlocking a screen, viewing encrypted information, downloading software, paying, changing settings, and the like. The fingerprint sensor 714 may be disposed on the front, back, or side of the terminal 700. When a physical button or a vendor Logo is provided on the terminal 700, the fingerprint sensor 714 may be integrated with the physical button or the vendor Logo.

The optical sensor 715 is used to collect the ambient light intensity. In one embodiment, processor 701 may control the display brightness of display screen 705 based on the ambient light intensity collected by optical sensor 715. Specifically, when the ambient light intensity is high, the display brightness of the display screen 705 is increased; when the ambient light intensity is low, the display brightness of the display screen 705 is adjusted down. In another embodiment, processor 701 may also dynamically adjust the shooting parameters of camera assembly 706 based on the ambient light intensity collected by optical sensor 715.

A proximity sensor 716, also referred to as a distance sensor, is typically disposed on a front panel of the terminal 700. The proximity sensor 716 is used to collect the distance between the user and the front surface of the terminal 700. In one embodiment, when the proximity sensor 716 detects that the distance between the user and the front surface of the terminal 700 gradually decreases, the processor 701 controls the display 705 to switch from the bright screen state to the dark screen state; when the proximity sensor 716 detects that the distance between the user and the front surface of the terminal 700 is gradually increased, the processor 701 controls the display 705 to switch from the breath-screen state to the bright-screen state.

Those skilled in the art will appreciate that the configuration shown in fig. 7 is not limiting to terminal 700 and may include more or fewer components than shown, or may combine certain components, or employ a different arrangement of components.

In some embodiments, a computer readable storage medium is also provided, in which a computer program is stored, which when executed by a processor implements the steps of the alarm preview method in the above embodiments. For example, the computer readable storage medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

It is noted that the computer-readable storage medium referred to in the embodiments of the present application may be a non-volatile storage medium, in other words, a non-transitory storage medium.

It should be understood that all or part of the steps to implement the above embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The computer instructions may be stored in the computer-readable storage medium described above.

That is, in some embodiments, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the steps of the above-described alert preview method.

It is to be understood that reference herein to "at least one" means one or more and "a plurality" means two or more. In the description of the embodiments of the present application, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," and the like do not denote any order or importance, but rather the terms "first," "second," and the like do not denote any order or importance.

The above-mentioned embodiments are provided by way of example and should not be construed as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An alarm preview method, which is applied to a preview device, and comprises the following steps:

acquiring first alarm information corresponding to the first monitoring point;

if it is detected that second alarm information identical to the first alarm information exists in the one or more pieces of second alarm information, continuously displaying the video of the first monitoring point in a first preview window, wherein the first preview window is an opened preview window corresponding to the second alarm information identical to the first alarm information;

the first alarm information comprises a first alarm generation source and a first alarm type, the first alarm generation source refers to first data acquisition equipment and/or a first alarm, the first data acquisition equipment is used for acquiring videos of the first monitoring point, the first alarm is used for alarming the first monitoring point, and the first alarm information is the same as the first alarm generation source and the first alarm type; or,

the first alarm information comprises a first alarm generation source, and the first alarm information is the same as the first alarm generation source;

after the video of the first monitoring point is continuously displayed in the first preview window, the method further comprises the following steps:

the first preview time length is a set fixed time length, or the first preview time length is a preview time length corresponding to a first alarm type and/or a first alarm generating source included in the first alarm information, and one alarm type and/or one alarm generating source corresponds to one preview time length.

2. The method of claim 1, wherein the first preview window is displaying the video of the first monitoring point before the video of the first monitoring point continues to be displayed in the first preview window, and wherein the continuing to display and the video that is being displayed are videos captured by the same data capture device.

3. The method according to claim 1, wherein after updating the preview end time of the first preview window according to the time at which the first alert information is acquired, the method further includes:

4. The method of claim 1 or 2, wherein after continuing to display the video of the first monitoring point in the first preview window, further comprising:

the alarm frequency information comprises one or more third alarm frequencies, any one of the one or more third alarm frequencies corresponds to one alarm generating source and one alarm type, and any one of the third alarm frequencies indicates that the corresponding alarm generating source accumulatively generates the alarm frequency of the corresponding alarm type after the first preview window is opened for the last time; and/or the presence of a gas in the atmosphere,

5. The method according to claim 1 or 2, wherein if there are one or more opened preview windows, acquiring alarm information corresponding to videos displayed in the one or more opened preview windows, and after obtaining one or more second alarm information, further comprising:

6. The method of claim 5, wherein after opening the second preview window, further comprising:

and setting the preview ending time of the second preview window according to the moment of acquiring the first alarm information, and/or displaying alarm prompt information corresponding to the second preview window.

7. An alarm preview device, wherein the device is applied to a preview device, and the device comprises:

a first display module, configured to continue to display a video of the first monitoring point in a first preview window if it is detected that there is second alarm information that is the same as the first alarm information in the one or more pieces of second alarm information, where the first preview window is a started preview window corresponding to the second alarm information that is the same as the first alarm information;

the first alarm information comprises a first alarm generation source and a first alarm type, the first alarm generation source refers to a first data acquisition device and/or a first alarm, the first data acquisition device is used for acquiring videos of the first monitoring point, the first alarm is used for alarming the first monitoring point, and the first alarm information is the same as the first alarm generation source and the first alarm type; or,

the device further comprises:

the first updating module is used for updating the preview ending time of the first preview window according to the first preview duration and the time when the first alarm information is acquired;

8. The apparatus of claim 7, wherein before the video of the first monitoring point is continuously displayed in the first preview window, the first preview window already displays the video of the first monitoring point, and the continuously displayed video and the already displayed video are videos captured by the same data capture device;

the device further comprises:

the second closing module is used for closing the first preview window after receiving a preview finishing instruction before the preview finishing time of the first preview window is reached;

the device further comprises:

the alarm frequency information comprises a first alarm frequency, and the first alarm frequency indicates the frequency of corresponding alarm accumulation after the first preview window is opened for the last time; and/or the presence of a gas in the atmosphere,

the alarm frequency information comprises one or more second alarm frequencies, any one of the one or more second alarm frequencies corresponds to one alarm generation source, and the any one second alarm frequency indicates the number of times of accumulated alarms of the corresponding alarm generation source after the first preview window is opened for the last time; and/or the presence of a gas in the gas,

the alarm frequency information comprises one or more fourth alarm frequencies, any one of the one or more fourth alarm frequencies corresponds to one alarm type, and the any one fourth alarm frequency indicates the alarm frequency of the corresponding alarm type generated by accumulating after the first preview window is opened for the last time;

the device further comprises:

a third display module, configured to open a second preview window if it is detected that there is no second alarm information that is the same as the first alarm information in the one or more second alarm information, and display a video of the first monitoring point in the second preview window;

the device further comprises:

9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.