KR102525182B1 - Apparatus and method for providing image - Google Patents

Abstract

An image providing apparatus according to an embodiment for solving the problem to be solved by the present invention is a communication module for receiving camera setting information and image information from each of a plurality of camera modules, and the image information based on the camera setting information and a processor that determines whether or not the image information is normal and, when the image information is abnormal, specifies a subject in which an error has occurred among the plurality of camera modules based on the camera setting information and the image information.

Description

Image providing apparatus and method {Apparatus and method for providing image}

The present invention relates to an apparatus and method for providing an image of a network camera including a plurality of camera modules.

When the surveillance system provides an image received from a camera capturing a surveillance area through a screen, the controller can adjust the rotation direction or zoom magnification of the camera after detecting the image with the user's eyes through the user interface.

The monitoring system can simultaneously monitor a plurality of areas through a plurality of cameras, and can monitor one area in all directions through a camera equipped with a plurality of image sensors.

When an error occurs in providing an image, the monitoring system specifies which configuration of the monitoring system including a plurality of cameras or a camera equipped with a plurality of image sensors has an error, and identifies the configuration where the error occurred. need to take action on

KR 10-0551826 B1

An object to be solved by the present invention is to provide an image providing apparatus and method for specifying the configuration of a monitoring system in which an error has occurred and taking measures therefor.

An image providing apparatus according to an embodiment for solving the problem to be solved by the present invention is a communication module for receiving camera setting information and image information from each of a plurality of camera modules, and the image information based on the camera setting information and a processor that determines whether or not the image information is normal and, when the image information is abnormal, specifies a subject in which an error has occurred among the plurality of camera modules based on the camera setting information and the image information.

An image providing method according to an embodiment for solving the problem to be solved by the present invention includes receiving camera setting information from each of a plurality of camera modules by a communication module, the plurality of cameras by the communication module. Receiving image information from each module, determining, by a processor, whether the image information is normal based on the camera setting information, and determining, by the processor, if the image information is abnormal, the camera and specifying an object in which an error has occurred based on setting information and the image information.

In this embodiment, the step of determining whether the image information is normal includes extracting a frame rate setting value or a bit rate setting value from the camera setting information, and an actual frame rate value or an actual bit rate value from the image information. Extracting a, and determining whether the actual frame rate value is the same as the frame rate setting value or the actual bit rate value is the same as the bit rate setting value, and the plurality of camera modules The step of specifying a subject in which an error has occurred among the plurality of camera modules may include a camera module whose frame rate actual value is different from the frame rate setting value or whose bit rate actual value is different from the bit rate setting value among the plurality of camera modules. It may be a step of specifying a target in which an error has occurred.

In the present embodiment, the step of specifying a subject in which an error has occurred among the plurality of camera modules includes determining whether a dynamic frame rate setting or a dynamic bit rate setting is activated from the camera setting information, the camera setting information If the dynamic frame rate setting or the dynamic bit rate setting is activated from, determining that the object in which the error occurred does not exist, and the dynamic frame rate setting or the dynamic bit rate setting from the camera setting information If it is not activated, it may include specifying a subject in which the error occurred among the plurality of camera modules.

In this embodiment, the step of determining whether the image information is normal includes receiving system information from the camera module, extracting the actual CPU usage amount from the system information, and the actual CPU usage amount and the CPU reference usage amount. In the step of specifying a subject in which an error has occurred among the plurality of camera modules, if the actual usage amount of the CPU exceeds the reference usage amount of the CPU, the CPU of the camera module is specified as the subject in which the error has occurred. and specifying an encoder of the camera module or a communication module of the camera module as a target in which the error occurred when the actual CPU usage amount is less than or equal to the CPU reference usage amount.

According to embodiments of the present invention, it is possible to specify the configuration of a monitoring system in which an error has occurred and to take measures against it.

In addition, even when an error occurs in the operation of any one of the plurality of camera modules, it is possible to provide an error-resistant monitoring system by collecting and supplying image information of the remaining camera modules operating normally.

According to embodiments of the present invention, a high-performance monitoring system can be provided by processing a plurality of high-resolution image information through a host device provided separately from a camera module.

In addition, when an error occurs in the operation of the host device, an error-resistant monitoring system can be provided by transferring the collection and supply authority for image information to the camera module.

In addition, by providing a monitoring system that automatically detects and restores an error, monitoring can be strengthened and user convenience can be provided.

In addition, user convenience can be provided by providing a monitoring system that notifies the user of whether or not an error has occurred and the subject of the error.

1 is a diagram for explaining a monitoring system according to an exemplary embodiment.
2 is a diagram for explaining a network camera according to an exemplary embodiment.
3 is a block diagram showing the configuration of an image providing device according to an exemplary embodiment.
4 is a flowchart illustrating a method of providing an image according to an exemplary embodiment.
5 to 7 are flowcharts for describing a method of specifying a target in which an error has occurred, according to an exemplary embodiment.
8 is a flowchart illustrating a method of providing an image according to an exemplary embodiment.

Since the present invention can apply various transformations and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, it should be understood that this is not intended to limit the present invention to specific embodiments, and includes all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

In the following embodiments, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. Terms are only used to distinguish one component from another.

Terms used in the following examples are only used to describe specific examples, and are not intended to limit the present invention. Expressions in the singular number include plural expressions unless the context clearly dictates otherwise. In the following embodiments, the terms "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more It should be understood that the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Embodiments of the invention may be presented as functional block structures and various processing steps. These functional blocks may be implemented with any number of hardware or/and software components that perform specific functions. For example, embodiments of the present invention may be directed to memory, processing, logic, look-up tables, etc., which may perform various functions by means of the control of one or more microprocessors or other control devices. Circuit configurations may be employed. Similar to the components of an embodiment of the invention may be implemented as software programming or software elements, an embodiment of the invention may include various algorithms implemented as data structures, processes, routines, or combinations of other programming constructs. , C, C++, Java (Java), can be implemented in a programming or scripting language such as assembler (assembler). Functional aspects may be implemented in an algorithm running on one or more processors. In addition, embodiments of the present invention may employ conventional techniques for electronic environment setting, signal processing, and/or data processing. Terms such as mechanism, element, means, and configuration may be used broadly and are not limited to mechanical and physical configurations. The term may include a meaning of a series of software routines in association with a processor or the like.

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

1 is a diagram for explaining a monitoring system 1 according to an embodiment.

2 is a diagram for explaining a network camera (CAM) according to an exemplary embodiment.

1 and 2, the monitoring system 1 according to an embodiment includes a camera module 10, a network switch 20, a host device 30, a network 40, and a client terminal 50. include

In the monitoring system 1 according to an embodiment, when the information of the camera module 10 collected by the host device 30 through the network switch 20 is transmitted to the client terminal 50 through the network 40, the user may provide a configuration capable of monitoring information transmitted to the client terminal 50.

A network camera (CAM) may capture a surveillance area in real time for the purpose of surveillance or security, and may be provided with one or more.

A network camera (CAM) may include one or more camera modules 10 .

For example, a network camera (CAM) may include a first camera module 11 to a fourth camera module 14 .

The camera module 10 acquires image information about the monitoring area by capturing the monitoring area.

Hereinafter, first image information is image information obtained by the first camera module 11, second image information is image information obtained by the second camera module 12, and third image information is third image information. The image information acquired by the camera module 13 and the fourth image information refer to image information acquired by the fourth camera module 14 .

A network camera (CAM) including a plurality of camera modules 10 may acquire a plurality of image information about the surveillance area by simultaneously capturing the surveillance area in different directions.

For example, a network camera (CAM) including the first camera module 11 to the fourth camera module 14 may simultaneously acquire first image information to fourth image information.

The camera module 10 may acquire image information through an image sensor such as a charge-coupled device (CCD) sensor or a complementary metal-oxide-semiconductor (CMOS) sensor.

The image information may be real-time image information or recorded image information.

Meanwhile, the image information may be still image information or moving image information.

The camera module 10 may be a low power camera driven by a battery.

The low-power camera normally maintains a sleep mode and periodically wakes up to check whether an event has occurred. The low-power camera switches to an active mode when an event occurs and returns to a sleep mode when an event does not occur. In this way, the low-power camera can reduce power consumption by maintaining an active mode only when an event occurs.

The camera module 10 may be a PTZ camera capable of panning and tilting and having an adjustable zoom magnification of a lens.

The camera module 10 may encode acquired image information and transmit the encoded image information to the host device 30 through the network switch 20 . In this case, the image information may be single image information or multiple image information.

The single image information may include, for example, image information obtained by one of the first camera module 11 to the fourth camera module 14 .

The multi-image information may include, for example, image information obtained by at least two of the first camera module 11 to the fourth camera module 14 .

The camera module 10 may store image information and image information addresses corresponding to the image information. The image information address may be information indicating a location where image information is stored.

Hereinafter, a first image information address indicates a location where the first image information is stored, a second image information address indicates a location where the second image information is stored, a third image information address indicates a location where the third image information is stored, and a fourth image information address indicates a location where the third image information is stored. The image information address indicates a location where the fourth image information is stored.

A plurality of image information addresses may be different from each other. For example, the first image information address to the fourth image information address may be different from each other.

The video information address may be a Real Time Streaming Protocol (RTSP) address. When image information is stored in the camera module 10, the image information address may point to the camera module 10. At this time, the client terminal 50 can access the camera module 10 storing image information based on the RTSP address.

The network switch 20 provides a path to access the network camera (CAM).

The network switch 20 may provide one Internet Protocol (IP) address indicating an access path for one network camera (CAM). Accordingly, the first camera module 11 to the fourth camera module 14 may share one IP address. That is, the network switch 20 can operate as an IP sharer. At this time, the client terminal 50 can access a plurality of pieces of image information acquired by the plurality of camera modules 10 using one IP address.

Meanwhile, the network switch 20 may access the camera module 10 based on the RTSP address requested by the client terminal 50 . That is, the network switch 20 may transmit the request of the client terminal 50 only to the camera module 10 indicated by the RTSP address.

The network switch 20 transmits the plurality of image information received from the plurality of camera modules 10 to the host device 30 . At this time, the plurality of image information transmitted and received through the network switch 20 may be in a state of being encoded by the plurality of camera modules 10 .

For example, the network switch 20 may transmit encoded first image information to encoded fourth image information received from the first camera module 11 to the fourth camera module 14 to the host device 30. there is. In this case, the encoded first image information to fourth image information may be separated from each other without being combined.

The host device 30 receives a plurality of pieces of image information from the network switch 20 and transmits multi-image information in which the pieces of image information are combined to the client terminal 50 according to a user's request.

For example, the host device 30 decodes the encoded first image information to the encoded fourth image information received from the network switch 20, and decodes the first image information to the decoded fourth image information. The information may be scaled, the scaled first image information to the scaled fourth image information may be combined to generate multi-image information, the multi-image information may be encoded, and the encoded multi-image information may be transmitted to the client terminal 50. .

When an operation error of the host device 30 is detected, the host device 30 selects one camera module 10 from among a plurality of camera modules 10 as a master device, and operates the host device 30 in the master device. Set the authority to perform

For example, when it is determined that the operation of the host device 30 is impossible due to overload or an external attack, the host device 30 selects the first camera module 11 as a master device, and the first camera module 11 ), the authority to provide multi-image information can be transferred.

Meanwhile, the host device 30 may perform rebooting by itself after transferring the authority for providing multi-image information to the first camera module 11 . After successful rebooting, the host device 30 may perform a function of providing a path to access the network camera (CAM) together with the network switch 20 .

According to the present embodiment, even when an error occurs in the operation of any one camera module 10, the host device 30 collects and supplies image information of the remaining camera modules 10 that operate normally, so that the host device 30 is robust against errors. A monitoring system 1 can be provided.

In addition, when an error occurs in the operation of the host device 30 itself, the authority is transferred to the camera module 10 so that the camera module 10 collects and supplies image information, thereby making the monitoring system 1 robust against errors. can provide

Network 40 may include a wired network or a wireless network. The wireless network may be a 2G (Generation) or 3G cellular communication system, a 3rd Generation Partnership Project (3GPP), a 4G communication system, Long-Term Evolution (LTE), World Interoperability for Microwave Access (WiMAX), and the like. The client terminal 50 may transmit and receive data with the host device 30 through the network 40 .

The client terminal 50 may display or store image information transmitted from the host device 30 . The client terminal 50 may receive a user input and transmit it to the host device 30 .

The client terminal 50 may include at least one or more processors. The client terminal 50 may be driven in a form included in another hardware device such as a microprocessor or a general-purpose computer system. The client terminal 50 may be a personal computer or a mobile terminal.

3 is a block diagram showing the configuration of an image providing apparatus 100 according to an embodiment.

The image providing device 100 according to an embodiment may be implemented as a single physical device or may be implemented by organically combining a plurality of physical devices.

To this end, some of the components included in the image providing device 100 according to an embodiment may be implemented or installed in one physical device, and the remaining parts may be implemented or installed in another physical device. In this case, one physical device may be implemented as a part of the network switch 20 and/or the host device 30, and another physical device may be implemented as a part of the client terminal 50.

Alternatively, the video providing device 100 according to an embodiment may be embedded in the network switch 20, the host device 30, or the client terminal 50, or may be embedded in the network switch 20, the host device 30, or the client. It may also be applied to a device provided separately from the terminal 50 .

Hereinafter, the configuration of the video providing device 100 included in the host device 30 will be described in detail. This may also be applied to the video providing device 100 provided in the network switch 20 or the client terminal 50.

Referring to FIG. 3 , an image providing apparatus 100 according to an embodiment includes a communication module 110, a processor 120, and a memory 130.

The communication module 110 receives camera setting information and image information from each of the plurality of camera modules 10 .

The camera setting information may include predetermined setting values related to photographing of the camera module 10 . For example, the camera setting information may include a frame rate setting value, a bit rate setting value, and the like.

The communication module 110 receives image information from each of the plurality of camera modules 10 .

For example, the communication module 110 may receive at least one of first to fourth image information.

The communication module 110 may receive a multi-image information request transmitted from the client terminal 50 and transmit a multi-image information response to the client terminal 50 .

Specifically, the communication module 110 may receive a plurality of pieces of image information encoded by the plurality of camera modules 10 from the network switch 20 .

For example, the communication module 110 may receive encoded first image information to encoded fourth image information from the network switch 20 . In this case, each of the encoded first image information to the encoded fourth image information may have a resolution of 2 megapixels.

The multi-image information request may be a request to simultaneously receive a plurality of image information acquired by one network camera (CAM).

For example, the multi-image information request may be a request to receive the first image information to the fourth image information of the first camera module 11 to the fourth camera module 14 on one screen.

The communication module 110 may transmit to the client terminal 50 a notification about a target where an error occurred, whether an action on the target where an error occurred, a target where the action on the error was successful, a target where the action on the error failed, and the like. there is. The communication module 110 may transmit error-related information to the client terminal 50 in response to a request from the client terminal 50 or periodically.

The processor 120 scales a plurality of pieces of image information in response to a request for multiple image information, and combines the scaled pieces of image information to generate multiple image information.

The processor 120 may include decoders, scalers, multiplexers, encoders, and the like.

A decoder decodes a plurality of encoded image information, a scaler scales a plurality of decoded image information, a multiplexer combines a plurality of scaled image information to generate multiple image information, and an encoder encodes the multiple image information. can

For example, the decoder may decode the encoded first image information to the encoded fourth image information, and the scaler may scale the decoded first image information to the decoded fourth image information.

In this case, the scaler may scale the decoded pieces of image information so that the sum of the resolutions of the scaled pieces of image information is suitable for the resolution required by the client terminal 50 .

For example, the scaler may scale the decoded pieces of image information so that the sum of the resolutions of the scaled first image information to the scaled fourth image information is equal to or less than the resolution required by the client terminal 50 .

The resolution requested by the client terminal 50 may be the highest resolution that can be displayed by the client terminal 50 or may be a resolution set by a user input, but is not limited thereto.

For example, the resolution required by the client terminal 50 may be 2 megapixels, and the scaled first to fourth image information may each have a resolution of 0.5 megapixels.

The multiplexer may generate one multi-image information by combining a plurality of scaled pieces of image information. One multi-image information may refer to image information that can be displayed on one screen.

An encoder may encode multiple image information.

At this time, the resolution of the encoded multi-image information may satisfy the resolution required by the client terminal 50 . That is, the resolution of the encoded multi-image information may be less than or equal to the resolution required by the client terminal 50 .

For example, encoded multi-image information may have a resolution of 2 megapixels.

The processor 120 may include the multi-image information encoded by the encoder in the multi-image information response.

According to the present embodiment, a high-performance monitoring system 1 can be provided by processing a plurality of high-resolution image information through the host device 30 provided separately from the camera module 10 .

The processor 120 determines whether the image information is normal based on the camera setting information, and if the image information is abnormal, the target where an error has occurred among the plurality of camera modules 10 based on the camera setting information and the image information. to specify

The processor 120 may determine whether the image information is normal by comparing camera setting information and image information.

For example, the processor 120 may extract a frame rate setting value and/or a bit rate setting value from camera setting information, and may extract an actual frame rate value and/or an actual bit rate value from image information.

The camera module 10 generates image information based on a frame rate setting value and a bit rate setting value. Therefore, the actual frame rate value and the actual bit rate value of the normal image information are the same as the frame rate setting value and the bit rate setting value.

That is, whether the image information is normal can be determined based on whether the actual frame rate value is equal to the frame rate setting value and/or whether the actual bit rate value is equal to the bit rate setting value.

The processor 120 selects the camera module 10 whose frame rate actual value and/or bit rate actual value is different from the frame rate setting value and/or bit rate setting value among the plurality of camera modules 10, the target where the error has occurred. can be specified as

Meanwhile, the processor 120 may determine whether the image information is normal based on the dynamic frame rate setting and/or the dynamic bit rate setting.

Dynamic frame rate setting and/or dynamic bit rate setting may refer to a setting in which a frame rate setting value and/or a bit rate setting value of image information is changed according to circumstances. For example, when an event such as motion is not detected in a surveillance area, when transmission and reception bandwidth between the camera module 10 and the network switch 20 and/or the host device 30 is insufficient, the camera module 10 After reducing the frame rate setting value and/or the bit rate setting value, image information may be obtained.

Accordingly, the processor 120 may set the dynamic frame rate and/or set the dynamic bit rate even if the camera module 10 has an actual frame rate value and/or an actual bit rate value that is different from the frame rate setting value and/or bit rate setting value. If the setting is activated, the object where the error occurred may not be specified.

On the other hand, if the dynamic frame rate setting and/or the dynamic bit rate setting is not activated, the processor 120 determines that the actual frame rate value and/or the actual bit rate value are different from the frame rate setting value and/or the bit rate setting value. The camera module 10 may be specified as a target in which an error has occurred.

Meanwhile, when the actual frame rate value and/or the actual bit rate value of the camera module 10 is different from the frame rate setting value and/or bit rate setting value, the processor 120 receives system information from the camera module 10. , extract actual CPU usage and/or actual memory usage from system information, and compare actual CPU usage and/or actual memory usage with CPU reference usage and/or memory reference usage.

System information may refer to actual state information such as hardware constituting the camera module 10 . For example, the system information may include actual CPU usage, actual memory usage, and the like.

In this case, the processor 120 may detect one or more components of the camera module 10 in which an error has occurred by comparing system information received from the camera module 10 with reference information.

The reference information may mean normal state information such as hardware constituting the camera module 10 . For example, the reference information may include CPU reference usage, memory reference usage, and the like.

At this time, the processor 120 specifies the CPU and/or memory of the camera module 10 as a target where an error occurs when the actual CPU usage and/or the actual memory usage exceeds the CPU reference usage and/or memory reference usage, and the CPU If the actual usage amount and/or the actual usage amount of memory is less than or equal to the CPU reference usage amount and/or the memory reference usage amount, the encoder of the camera module 10 or the communication module of the camera module 10 may be specified as a target in which the error occurred.

That is, the processor 120 may determine whether an error occurs in the camera module 10 based on camera setting information, and detects the configuration of the camera module 10 in which an error occurs based on system information of the camera module 10. can do.

The processor 120 may reboot the camera module 10 when an error occurs in the camera module 10 or when a configuration of the camera module 10 in which the error occurs is detected. Through this, by providing the monitoring system 1 that automatically detects and restores an error, monitoring can be strengthened and user convenience can be provided.

On the other hand, when an error occurs in the camera module 10, the processor 120 detects the configuration of the camera module 10 in which the error occurred, and the camera module 10 in which the error occurred in the client terminal 50 and/or Alternatively, information on the configuration of the camera module 10 in which an error has occurred may be transmitted. Through this, it is possible to provide user convenience by providing the monitoring system 1 that notifies the user of whether an error has occurred and the subject of the error.

Meanwhile, the processor 120 compares the reception bandwidth from the camera module 10 of the host device 30 with the transmission bandwidth of the host device 30 to the camera module 10 to detect an error of the host device 30. can detect

When an error of the host device 30 is detected, the processor 120 may select one camera module 10 from among a plurality of camera modules 10 as a master device. The master device may perform the function of the video providing device 100 .

For example, the processor 120 may select the first camera module 11 as the master device among the first to fourth camera modules 11 to 4 in response to an error of the host device 30 . .

At this time, the processor 120 selects a camera module 10 having a predetermined highest priority among the plurality of camera modules 10 or a camera module 10 having the smallest load among the plurality of camera modules 10 as the master device. can do.

Among the plurality of camera modules 10, the camera module 10 with the smallest load is the camera module 10 with the smallest load at the time when the error of the host device 30 is detected, or the camera module 10 with the smallest load measured for a predetermined period. The camera module 10 may be small, but is not limited thereto.

According to the present embodiment, when an error of the host device 30 is detected, high-resolution image data may be processed by the camera module 10 and provided to the user.

The memory 130 may store camera setting information, image information, system information, reference information, and the like received from the camera module 10 .

The memory 130 may store information about a target in which an error occurred, whether or not a measure was taken for the target in which an error occurred, a target in which a measure for an error was successful, and a target in which a measure for an error failed.

4 is a flowchart illustrating a method of providing an image according to an exemplary embodiment.

Referring to FIG. 4 , the communication module 110 receives camera setting information from the camera module 10 (S101).

The communication module 110 receives image information from the camera module 10 (S103).

Next, the processor 120 determines whether the image information is normal based on the camera setting information.

When the image information is normal (S105), the processor 120 ends the error detection process.

If the image information is abnormal (S105), the processor 120 specifies a target where an error has occurred based on the camera setting information and the image information (S107).

Hereinafter, with reference to FIGS. 5 to 7 , a method of specifying a subject in which an error has occurred by the host device 30 will be described in more detail.

5 to 7 are flowcharts for describing a method of specifying a target in which an error has occurred, according to an exemplary embodiment.

Referring to FIG. 5 , the processor 120 extracts a frame rate setting value from camera setting information (S301). In this case, the processor 120 may extract a bit rate setting value from camera setting information.

The processor 120 extracts an actual frame rate value from image information (S303). In this case, the processor 120 may extract an actual bit rate value from camera setting information.

Subsequently, the processor 120 determines whether the actual frame rate value is the same as the frame rate setting value (S305). At this time, the processor 120 may determine whether the actual bit rate value is the same as the bit rate setting value.

When the frame rate actual value is equal to the frame rate setting value, the processor 120 terminates the error detection process. Even when the actual bitrate value is equal to the set bitrate value, the processor 120 may end the error detection process.

When the actual frame rate value is different from the set frame rate value, the processor 120 receives system information from the camera module 10 (S307). The processor 120 may receive system information from the camera module 10 even when the actual bit rate value is different from the set bit rate value.

Subsequently, the processor 120 extracts the actual CPU usage amount from the system information (S309). At this time, the processor 120 may extract the actual memory usage amount from the system information.

Subsequently, the processor 120 compares the actual CPU usage amount with the CPU reference usage amount (S311). In this case, the processor 120 may compare the actual memory usage with the reference memory usage.

When the actual amount of CPU usage exceeds the reference amount of CPU, the processor 120 specifies the CPU of the camera module 10 as an error target (S313). If the actual amount of memory used exceeds the reference amount of memory, the processor 120 may specify the memory of the camera module 10 as a target in which an error has occurred.

When the actual CPU usage is less than or equal to the CPU reference usage, the processor 120 specifies the encoder of the camera module 10 as an error target (S315). At this time, the processor 120 may specify the communication module of the camera module 10 as a target in which the error occurred.

The operation of FIG. 5 may be performed in response to a request from the client terminal 50 or periodically, but is not limited thereto.

Referring to FIG. 6 , when the actual frame rate value is different from the frame rate setting value, the processor 120 checks whether the dynamic frame rate setting is activated from the camera setting information (S503). At this time, the processor 120 may check whether the dynamic bit rate setting is activated based on the camera setting information.

When the dynamic frame rate setting is activated from the camera setting information, the processor 120 may determine that the object in which the error occurred does not exist, and may end the error detection process. Even when the dynamic bit rate setting is activated from the camera setting information, the processor 120 may determine that the object in which the error occurred does not exist, and may end the error detection process.

When the dynamic frame rate setting is not activated from the camera setting information, the processor 120 may specify a subject in which an error has occurred among the plurality of camera modules 10 . Even when the dynamic bit rate setting is not activated from the camera setting information, the processor 120 may specify a subject in which an error has occurred among the plurality of camera modules 10 .

The operation of FIG. 6 may be performed between operations S305 and S307 of FIG. 5 or may be performed separately from the operation of FIG. 5 .

The operation of FIG. 6 may be performed in response to a request from the client terminal 50 or periodically, but is not limited thereto.

Referring to FIG. 7 , the processor 120 detects a reception bandwidth from the camera module 10 of the host device 30 (S701).

The processor 120 detects the transmission bandwidth of the camera module 10 of the host device 30 (S703).

Next, the processor 120 compares the reception bandwidth with the transmission bandwidth (S705).

When the reception bandwidth is equal to the transmission bandwidth (S705), the processor 120 ends the error detection process.

When the reception bandwidth is different from the transmission bandwidth (S705), the processor 120 detects an error of the host device 30 (S707).

In this case, the processor 120 may detect one or more components of the host device 30 in which an error has occurred based on system information of the host device 30 .

For example, the processor 120 may detect actual CPU usage and/or actual memory usage of the host device 30 and compare the actual CPU usage and/or the actual memory usage with the CPU reference usage and/or memory reference usage. there is.

At this time, the processor 120 may specify the CPU and/or memory of the host device 30 as a target in which an error occurs when the actual CPU usage and/or the actual memory usage exceeds the CPU reference usage and/or memory reference usage. . When the actual CPU usage amount and/or the actual memory usage amount is less than the CPU reference usage amount and/or the memory reference usage usage, the processor 120 selects the encoder of the host device 30 or the communication module 110 of the host device 30 as the target where the error occurred. can be specified as

Meanwhile, when the reception bandwidth is different from the transmission bandwidth, the processor 120 may check whether the dynamic frame rate setting and/or the dynamic bit rate setting are activated from host setting information.

When the dynamic frame rate setting and/or the dynamic bit rate setting is activated from the host configuration information, the processor 120 may determine that the object in which the error occurred does not exist and may terminate the error detection process.

When the dynamic frame rate setting and/or the dynamic bit rate setting are not activated from the host configuration information, the processor 120 may specify the host device 30 as a target in which an error occurred.

When an error of the host device 30 is detected, the processor 120 notifies the user through the communication module 110 or selects one camera module 10 from among a plurality of camera modules 10 as a master device. selection and transfer of authority.

The operation of FIG. 7 may be performed in response to a request from the client terminal 50 or periodically, but is not limited thereto.

8 is a flowchart illustrating a method of providing an image according to an exemplary embodiment.

Referring to FIG. 8 , the processor 120 boots at least one of the camera module 10, the network switch 20, and the host device 30 (S901).

Subsequently, when the communication module 110 of the host device 30 does not receive an image from the camera module 10 (S903), the processor 120 performs a ping test on the camera module 10 (S905). .

When the camera module 10 passes the ping test (S907), the processor 120 specifies the network switch 20 as an error occurrence target (S909). At this time, the processor 120 may reboot the network switch 20 .

On the other hand, if the camera module 10 does not pass the ping test (S907), the processor 120 specifies the camera module 10 as an error-occurring target (S911). At this time, the processor 120 may reboot the camera module 10 .

According to the present embodiment, since an error-occurring device among devices constituting the monitoring system 1 can be detected and measures for the error can be taken, a more stable monitoring system 1 can be provided.

So far, the present invention has been mainly looked at with respect to preferred embodiments. Those skilled in the art to which the present invention belongs will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention.

Therefore, the disclosed embodiments should be considered from a descriptive point of view rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the foregoing description, and the inventions claimed by the claims and inventions equivalent to the claimed inventions should be construed as being included in the present invention.

10: camera module
11: first camera module
12: second camera module
13: third camera module
14: fourth camera module
20: network switch
30: host device
40: network
50: client terminal

Claims (5)

a communication module receiving camera setting information and image information from each of the plurality of camera modules; and
It is determined whether or not the image information is normal based on the camera setting information, and if the image information is abnormal, a subject in which an error has occurred among the plurality of camera modules is specified based on the camera setting information and the image information. Including; a processor that
The processor extracts a frame rate setting value or a bit rate setting value from the camera setting information, extracts an actual frame rate value or an actual bit rate value from the image information, and the actual frame rate value is the same as the frame rate setting value. It is determined whether or not the actual bit rate value is the same as the bit rate setting value, and the actual frame rate value is different from the frame rate setting value or the actual bit rate value is different from the bit rate setting value. Specifying the camera module as the subject of the error,
The processor checks whether the dynamic frame rate setting or the dynamic bit rate setting is activated from the camera setting information, and if the dynamic frame rate setting or the dynamic bit rate setting is activated, the object where the error occurred does not exist. and determining that the error occurs among the plurality of camera modules when the dynamic frame rate setting or the dynamic bit rate setting is not activated from the camera setting information. Receiving, by a communication module, camera setting information from each of a plurality of camera modules;
receiving image information from each of the plurality of camera modules by the communication module;
determining, by a processor, whether the image information is normal based on the camera setting information; and
When the image information is abnormal, specifying, by the processor, an object in which an error has occurred based on the camera setting information and the image information;
The step of determining whether the image information is normal,
extracting a frame rate setting value or a bit rate setting value from the camera setting information;
extracting an actual frame rate value or an actual bit rate value from the image information; and
Determining whether the actual frame rate value is equal to the frame rate setting value or whether the actual bit rate value is equal to the bit rate setting value; Including,
The step of specifying a target in which an error has occurred among the plurality of camera modules,
Specifying a camera module whose actual frame rate value is different from the frame rate setting value or whose bit rate actual value is different from the bit rate setting value among the plurality of camera modules as a target where the error has occurred,
The step of specifying a target in which an error has occurred among the plurality of camera modules,
checking whether a dynamic frame rate setting or a dynamic bit rate setting is activated from the camera setting information;
determining that the object in which the error occurred does not exist when the dynamic frame rate setting or the dynamic bit rate setting is activated from the camera setting information; and
If the dynamic frame rate setting or the dynamic bit rate setting is not activated from the camera setting information, specifying a target in which the error has occurred among the plurality of camera modules; including, image providing method. The method of claim 2,
Wherein the plurality of camera modules share one Internet Protocol (IP) address. The method of claim 2,
The plurality of camera modules simultaneously photograph the surveillance area in different directions. The method of claim 2,
The step of determining whether the image information is normal,
Receiving system information from the camera module;
extracting actual CPU usage from the system information; and
Comparing the actual CPU usage and the CPU reference usage;
The step of specifying a target in which an error has occurred among the plurality of camera modules,
If the actual CPU usage exceeds the CPU reference usage, the CPU of the camera module is specified as the target where the error occurred, and if the CPU actual usage is less than or equal to the CPU reference usage, the encoder of the camera module or the communication module of the camera module A step of specifying as a target in which the error occurred, an image providing method.

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