KR20190130404A - Apparatus and method for providing image - Google Patents

Abstract

The image providing apparatus according to an embodiment of the invention, to solve the tasks to be solved thereof, comprises: a communication module receiving camera setting information and image information from each of a plurality of camera modules; and a processor which determines whether the image information is normal based on the camera setting information and specifies an object in which an error occurs among the plurality of camera modules based on the camera setting information and the image information when the image information is abnormal. Therefore, the apparatus for providing an image can specify the object in which an error occurs in a monitoring system and take action thereon.

Description

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 the image received from the camera capturing the surveillance area through the screen, the controller can detect the image visually through the user interface and adjust the rotation direction or zoom ratio of the camera.

The monitoring system may simultaneously monitor a plurality of areas through a plurality of cameras, and may monitor a single area omni-directionally through a camera equipped with a plurality of image sensors.

When an error occurs in providing an image, the surveillance system specifies which of the configurations of the surveillance system including a plurality of cameras or a camera equipped with a plurality of image sensors has caused an error, Action needs to be taken.

KR 10-0551826 B1

An object of the present invention is to provide an image providing apparatus and method for specifying a configuration of an surveillance system in which an error has occurred and taking an action thereto.

According to one or more exemplary embodiments, an image providing apparatus includes a communication module configured to receive 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 determining whether the image is normal, and when the image information is abnormal, specifying a target of an error among the plurality of camera modules based on the camera setting information and the image information.

According to one or more exemplary embodiments, an image providing method includes receiving, by a communication module, camera setting information from each of a plurality of camera modules, and by the communication module, the plurality of cameras. Receiving image information from each of the modules; determining, by the processor, whether the image information is normal based on the camera setting information; and, when the image information is abnormal, by the processor, the camera And specifying an object in which an error has occurred based on the setting information and the image information.

In the present embodiment, determining whether the image information is normal, extracting a frame rate setting value or a bit rate setting value from the camera setting information, a frame rate actual value or a bit rate actual value from the image information. And determining whether the frame rate actual value is the same as the frame rate setting value or whether the bit rate actual value is the same as the bit rate setting value, and the plurality of camera modules. Among the plurality of camera modules, the step of specifying an object in which an error occurs may include selecting a camera module among the plurality of camera modules, wherein the frame rate actual value is different from the frame rate setting value or the bit rate actual value is different from the bit rate setting value. The number of steps to identify as the target of the error The.

In the present embodiment, specifying the target of the error from the plurality of camera modules, the step of checking whether the dynamic frame rate setting or 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, determining that the object having the error does not exist, and the dynamic frame rate setting or the dynamic bit rate setting is determined from the camera setting information. If not activated, it may include specifying a target of the error from among the plurality of camera modules.

In the present embodiment, the determining of whether the image information is normal comprises: receiving system information from the camera module, extracting CPU actual usage from the system information, and CPU actual usage and CPU reference usage Comprising: comparing the step, and specifying the target of the error from the plurality of camera modules, if the actual CPU usage exceeds the CPU reference usage, the CPU of the camera module to specify the target of the error And when the actual CPU usage is less than or equal to the CPU reference usage, specifying the encoder of the camera module or the communication module of the camera module as a target of the error.

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

In addition, even when an error occurs in the operation of any one of the plurality of camera module, by collecting and supplying the video information of the remaining camera module that operates normally, it is possible to provide a surveillance system robust to the error.

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

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

In addition, by providing a monitoring system that automatically detects and recovers from errors, it is possible to enhance monitoring and provide user convenience.

In addition, it is possible to provide user convenience by providing a monitoring system that notifies the user of whether an error occurs and a target of the error.

1 is a diagram illustrating a monitoring system according to an exemplary embodiment.
2 is a diagram for describing a network camera, according to an exemplary embodiment.
3 is a block diagram illustrating a configuration of an image providing apparatus according to an exemplary embodiment.
4 is a flowchart illustrating an image providing method according to an exemplary embodiment.
5 to 7 are flowcharts for describing a method of specifying a target where an error occurs, according to an exemplary embodiment.
8 is a flowchart illustrating an image providing method according to an exemplary embodiment.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof 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. The terms are only used to distinguish one component from another.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the following embodiments, terms such as "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, one or more It is to be understood that it does not exclude in advance the possibility of the presence or addition of other features or numbers, steps, operations, components, components or combinations thereof.

Embodiments of the present invention can be represented by functional block configurations and various processing steps. Such functional blocks may be implemented in various numbers of hardware or / and software configurations that perform particular functions. For example, embodiments of the invention may be implemented directly, such as memory, processing, logic, look-up table, etc., capable of executing various functions by the control of one or more microprocessors or other control devices. Circuit configurations can be employed. Similar to the components of an embodiment of the present invention may be implemented in software programming or software elements, embodiments of the present invention include various algorithms implemented in combinations of data structures, processes, routines or other programming constructs. It may be implemented in a programming or scripting language such as C, C ++, Java, assembler, or the like. The functional aspects may be implemented with an algorithm running on one or more processors. In addition, embodiments of the present invention may employ the prior art for electronic configuration, signal processing, and / or data processing. Terms such as mechanism, element, means, configuration can be used broadly and are not limited to mechanical and physical configurations. The term may include the meaning of a series of routines of software in conjunction with a processor or the like.

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

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

2 is a diagram for describing a network camera CAM according to an exemplary embodiment.

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

Surveillance system 1 according to an embodiment is a user, if the information of the camera module 10 collected from the host device 30 via the network switch 20 is transmitted to the client terminal 50 via the network 40, May provide a configuration for monitoring the information transmitted to the client terminal 50.

The network camera CAM may capture a surveillance area in real time for surveillance or security purposes, and may be provided with one or more.

The network camera CAM may include one or more camera modules 10.

For example, the network camera CAM may include the first camera module 11 to the fourth camera module 14.

The camera module 10 captures a surveillance area to obtain image information about the surveillance area.

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

The network camera CAM including the plurality of camera modules 10 may acquire a plurality of image information about the surveillance area by simultaneously photographing the surveillance area in different directions.

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

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

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

The image information may be still image information or video information.

The camera module 10 may be a battery powered low power camera.

The low power camera maintains its normal sleep mode and periodically checks to see if an event has occurred. The low power camera enters the active mode when an event occurs, and returns to the sleep mode when the event does not occur. As such, the low power camera may reduce power consumption by maintaining the active mode only when an event occurs.

The camera module 10 may be a PTZ camera that is capable of panning and tilting and whose zoom magnification of the lens is adjustable.

The camera module 10 may encode the obtained 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 the image information and the image information address 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 is a location where the first image information is stored, a second image information address is a location where the second image information is stored, a third image information address is a location where the third image information is stored, and a fourth The video information address indicates a location where the fourth video information is stored.

The 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 the image information is stored in the camera module 10, the image information address may point to the camera module 10. In this case, the client terminal 50 may access the camera module 10 in which the image information is stored 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 IP (Internet Protocol) address indicating an access path to one network camera (CAM). Accordingly, the first camera module 11 to the fourth camera module 14 may share one IP address. In other words, the network switch 20 can operate as an IP router. In this case, the client terminal 50 may access a plurality of image information obtained 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 according to the request of the client terminal 50. That is, the network switch 20 may transmit a request of the client terminal 50 only to the camera module 10 indicated by the RTSP address.

The network switch 20 transmits a plurality of image information received from the plurality of camera modules 10 to the host device 30. In this case, the plurality of image information transmitted and received through the network switch 20 may be encoded by the plurality of camera modules 10, respectively.

For example, the network switch 20 may transmit the encoded first image information or the encoded fourth image information received from the first camera module 11 to the fourth camera module 14 to the host device 30. have. 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 image information from the network switch 20, and transmits the plurality of image information combined with the plurality of image information to the client terminal 50 according to a user's request.

For example, the host device 30 decodes the encoded first image information or the encoded fourth image information received from the network switch 20, and decodes the first image information to the decoded fourth image. Scale information, combine the scaled first image information and the scaled fourth image information to generate multiple image information, encode the multiple image information, and transmit the encoded multiple image information to the client terminal 50. .

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

For example, when the host device 30 determines that the operation of the host device 30 is impossible due to an 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 a reboot by itself after transferring the authority for providing the multi-image information to the first camera module 11. After successfully rebooting, the host device 30 may perform a function of providing a path for accessing the network camera CAM together with the network switch 20.

According to the present exemplary embodiment, even when an error occurs in the operation of any one of the camera modules 10, the host device 30 may collect and supply the image information of the remaining camera modules 10 which are normally operated, thereby being robust to errors. Surveillance system 1 may be provided.

In addition, when an error occurs in the operation of the host device 30 itself, the camera module 10 transfers the authority to the camera module 10 to collect and supply the image information, thereby making the surveillance system 1 robust to the error. Can provide.

Network 40 may include a wired network or a wireless network. The wireless network may be 2G (Generation) or 3G cellular communication system, 3rd Generation Partnership Project (3GPP), 4G communication system, Long-Term Evolution (LTE), World Interoperability for Microwave Access (WiMAX), or the like. The client terminal 50 may transmit / 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 processor. The client terminal 50 may be driven in a form included in other hardware devices such as microprocessors or general purpose computer systems. The client terminal 50 may be a personal computer or a mobile terminal.

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

The image providing apparatus 100 may be implemented as one physical device, or a plurality of physical devices may be organically combined.

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

Alternatively, the image providing apparatus 100 may be embedded in the network switch 20, the host device 30, or the client terminal 50, or may be included in the network switch 20, the host device 30, or the client. It may be applied to a device provided separately from the terminal 50.

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

Referring to FIG. 3, the 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 the first to fourth image information.

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

In detail, the communication module 110 may receive a plurality 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 or encoded fourth image information from the network switch 20. In this case, each of the encoded first image information and 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 obtained by one network camera (CAM).

For example, the multi-image information request may be a request for receiving 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 a notification to the client terminal 50 about an object in which an error has occurred, whether an action on the object in which the error has occurred, a object in which the action on the error succeeds, a object in which the action on the error has failed, and the like. have. The communication module 110 may transmit information related to an error to the client terminal 50 in response to a request from the client terminal 50 or periodically.

The processor 120 scales the plurality of image information in response to the multi-image information request, and combines the plurality of scaled image information to generate the multi-image information.

The processor 120 may include a decoder, a scaler, a multiplexer, an encoder, and the like.

The decoder decodes the encoded plurality of image informations, the scaler scales the decoded plurality of image informations, the multiplexer combines the plurality of scaled image informations to generate the multi image information, and the encoder encodes the multi image information. Can be.

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 plurality of image informations so that the sum of the resolutions of the plurality of scaled image informations is suitable for the resolution required by the client terminal 50.

For example, the scaler may scale the decoded plurality of image informations such that the sum of the resolutions of the scaled first image information and the scaled fourth image information is equal to or smaller than the resolution required by the client terminal 50.

The resolution required 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 mega pixels, and the scaled first image information to fourth image information may each have a resolution of 0.5 mega pixels.

The multiplexer may combine the plurality of scaled image information to generate one multi-image information. One piece of multi-image information may refer to image information that can be displayed on one screen.

The encoder can encode multiple image information.

In this case, 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, the encoded multi-image information may have a resolution of 2 mega pixels.

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

According to the present exemplary embodiment, the high performance monitoring system 1 may be provided by processing a plurality of pieces of image information having a high resolution 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 when the image information is abnormal, an object in which an error occurs among the plurality of camera modules 10 based on the camera setting information and the image information. Specifies.

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

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

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

That is, whether the image information is normal may be determined by whether the actual framerate value is equal to the framerate setting value and / or whether the bitrate actual value is the same as the bitrate setting value.

The processor 120 selects a camera module 10 among a plurality of camera modules 10 whose frame rate actual value and / or bit rate actual value is different from the frame rate setting value and / or bitrate setting value. Can be specified.

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.

The dynamic frame rate setting and / or the dynamic bitrate 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 a situation. For example, when an event such as a motion is not detected in the surveillance area, when the transmission / 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 bit rate setting value, the image information may be acquired.

Accordingly, the processor 120 may set the dynamic frame rate setting and / or the dynamic bit rate even if the camera module 10 is different from the frame rate actual value and / or the bit rate actual value from the frame rate setting value and / or the bit rate setting value. If the setting is enabled, it may not be specified as the target of the error.

In contrast, when the dynamic frame rate setting and / or the dynamic bit rate setting is not activated, the processor 120 differs from the frame rate setting value and / or the bit rate setting value different from the frame rate setting value and / or the bit rate setting value. The camera module 10 may be identified as a target of an error.

Meanwhile, when the frame rate actual value and / or bit rate actual 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. The CPU actual usage and / or memory actual usage may be extracted from the system information, and the CPU actual usage and / or memory actual usage may be compared with the CPU reference usage and / or memory usage.

The system information may mean actual state information such as hardware constituting the camera module 10. For example, the system information may include CPU actual usage, memory actual 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 occurs by comparing the 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.

In this case, when the CPU actual usage and / or memory actual usage exceeds the CPU usage and / or memory usage, the processor 120 specifies the CPU and / or memory of the camera module 10 as a target of an error, and the CPU If the actual usage and / or memory actual usage is less than or equal to the CPU-based usage and / or the memory-based usage, the encoder of the camera module 10 or the communication module of the camera module 10 may be specified as an error occurrence target.

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

When an error of the camera module 10 occurs, the processor 120 may reboot the camera module 10 when the configuration of the camera module 10 in which the error occurs is detected. In this way, by providing a monitoring system 1 that automatically detects and recovers from errors, it is possible to enhance monitoring and provide user convenience.

On the other hand, when an error of the camera module 10 occurs, the processor 120 detects a configuration of the camera module 10 in which the error occurs, the camera module 10 in which the error occurs in the client terminal 50 and // Alternatively, information about a configuration of the camera module 10 in which an error occurs may be transmitted. In this way, the user's convenience may be provided by providing the monitoring system 1 that notifies the user of whether an error occurs and a target 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 camera module 10 of the host device 30 to detect an error of the host device 30. It can be detected.

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

For example, the processor 120 may select the first camera module 11 as the master device from the first camera module 11 to the fourth camera module 14 in response to an error of the host device 30. .

In this case, the processor 120 selects the camera module 10 having the highest priority among the plurality of camera modules 10 or the camera module 10 having the least 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 having the least load is the camera module 10 having the least load at the time when an error of the host device 30 is detected, or the load measured for a predetermined period is the most. The enemy may be the camera module 10, but is not limited thereto.

According to the present exemplary embodiment, when an error of the host device 30 is detected, the camera module 10 may process and provide high resolution image data to a user.

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

The memory 130 may store information about an object in which an error has occurred, whether or not an action on the object in which the error has occurred, a object in which the action on the error succeeds, a object in which the action on the error has failed, and the like.

4 is a flowchart illustrating an image providing method 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).

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

If 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 in which an error has occurred based on the camera setting information and the image information (S107).

Hereinafter, with reference to FIGS. 5-7, the method of specifying the target which the error generate | occur | produced by the host apparatus 30 is demonstrated in more detail.

5 through 7 are flowcharts for describing a method of specifying a target, in which an error occurs, 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 the bitrate setting value from the camera setting information.

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

Subsequently, the processor 120 determines whether the frame rate actual value is the same as the frame rate setting value (S305). In this case, the processor 120 may determine whether the bitrate actual value is the same as the bitrate setting value.

If the frame rate actual value is equal to the frame rate setting value, the processor 120 terminates the error detection process. Even if the bitrate actual value is the same as the bitrate setting value, the processor 120 may end the error detection process.

When the frame rate actual value is different from the frame rate setting 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 bitrate actual value is different from the bitrate setting value.

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

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

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

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 object in which an error has occurred (S315). In this case, the processor 120 may specify the communication module of the camera module 10 as a target of an error.

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 frame rate actual 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). In this case, the processor 120 may check whether the dynamic bit rate setting is activated from the camera setting information.

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

When the dynamic frame rate setting is not activated from the camera setting information, the processor 120 may specify a target in which an error occurs 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 target in which an error occurs 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.

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 a transmission bandwidth of the camera module 10 of the host device 30 (S703).

Subsequently, the processor 120 compares the reception bandwidth and the transmission bandwidth (S705).

If the reception bandwidth is the same as the transmission bandwidth (S705), the processor 120 terminates the error detection process.

If 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 at least one configuration of the host device 30 in which an error occurs, based on the system information of the host device 30.

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

In this case, the processor 120 may specify the CPU and / or memory of the host device 30 as a target of an error when the CPU actual usage and / or memory actual usage exceed the CPU usage and / or memory usage. . When the CPU actual usage and / or memory actual usage is less than or equal to the CPU usage and / or the memory usage, the processor 120 may target the encoder of the host device 30 or the communication module 110 of the host device 30 with an error. Can be specified.

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 the host configuration information.

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

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

When an error of the host device 30 is detected, the processor 120 notifies the user through the communication module 110 or moves one camera module 10 from among the plurality of camera modules 10 to the master device. Can select and transfer 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 an image providing method according to an exemplary embodiment.

Referring to FIG. 8, the processor 120 performs booting of 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 object in which an error occurs (S909). At this time, the processor 120 may reboot the network switch 20.

On the other hand, when the camera module 10 does not pass the ping test (S907), the processor 120 specifies the camera module 10 as an object in which an error occurs (S911). In this case, the processor 120 may reboot the camera module 10.

According to the present embodiment, since an error occurs among the devices constituting the monitoring system 1 and a measure for the error can be taken, a more stable monitoring system 1 can be provided.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will understand that the present invention can be embodied in a modified form without departing from the essential characteristics of the present invention.

Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown not in the above description but in the claims, and the invention claimed by the claims and the inventions equivalent to the claims 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 configured to receive camera setting information and image information from each of the plurality of camera modules; And
It is determined whether the image information is normal based on the camera setting information. If the image information is abnormal, the object where an error has occurred is identified among the plurality of camera modules based on the camera setting information and the image information. And an processor. Receiving, by the communication module, camera setting information from each of the plurality of camera modules;
Receiving, by the communication module, image information from each of the plurality of camera modules;
Determining, by a processor, whether the image information is normal based on the camera setting information; And
And specifying, by the processor, a target in which an error occurs based on the camera setting information and the image information when the image information is abnormal. The method according to claim 2,
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 a frame rate actual value or a bit rate actual value from the image information; And
Determining whether the framerate actual value is equal to the framerate setting value or whether the bitrate actual value is equal to the bitrate setting value;
The step of specifying the target of the error among the plurality of camera modules,
Among the plurality of camera modules, the step of specifying the camera module that the frame rate actual value is different from the frame rate setting value or the bit rate actual value is different from the bit rate setting value as the target of the error is provided. Way. The method according to claim 3,
The step of specifying the target of the error among the plurality of camera modules,
Checking whether the dynamic frame rate setting or the dynamic bit rate setting is activated from the camera setting information;
Determining that the object having the error does not exist when the dynamic frame rate setting or the dynamic bit rate setting is activated from the camera setting information; And
And specifying the target of the error 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. The method according to claim 2,
Determining whether the image information is normal,
Receiving system information from the camera module;
Extracting CPU actual usage from the system information; And
And comparing the CPU actual usage with the CPU reference usage.
The step of specifying the target of the error among the plurality of camera modules,
If the actual CPU usage exceeds the CPU standard usage, the CPU of the camera module is specified as the target of the error occurrence. If the actual CPU usage is less than the CPU usage, the encoder of the camera module or the communication module of the camera module. Specifying a target of the error, wherein the image is provided.

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