CN1181686C - Network image recording system - Google Patents

Abstract

The invention relates to a network image recording system, which comprises at least one image server, at least one network storage device and a monitoring device. The image server is used for controlling at least one camera to take a picture to obtain image data, and sending the image data to a Network Storage device, such as a Network Attached Storage (NAS), through a link Network. The network storage device receives and stores the image data through a link network, and can perform backup to ensure the integrity of the data. The monitoring device is connected to the image server and the network storage device through a link network and is used for monitoring the image data sent by the image server. In addition, the monitoring device can be used as a monitoring interface only, or can control the image data stored in the network storage device to be sent to the monitoring device.

Description

Network Video Recording System

technical field

The invention relates to an image recording system for network monitoring with photography and video recording functions, in particular to a network image recording system using a network storage device for network recording and monitoring functions.

Background technique

Due to the increasingly advanced technology, safety management has changed from manual patrol management to machine video management. For example, in places such as buildings or vaults, cameras and other equipment are installed to record video through network transmission, which can avoid the trouble and inconvenience of manual patrolling.

The practice of the known network monitoring system is generally as shown in FIG. 1 , using a monitoring computer 110 as the main control terminal of the system, and connecting to each camera server (CameraServer) 120 through the network. The function of each camera server 120 is to receive the image signals captured by the cameras 130 and convert them into digital images. In this way, users (such as building managers, or monitoring and security personnel of bank vaults) can use the computer 110 to connect to each camera server 120 through the network, and monitor remote multi-point camera image signals accordingly.

However, the above known network monitoring systems have the following disadvantages. First of all, the general current camera server 120 itself mainly performs the function of image conversion, and is relatively insufficient in the video recording function; It does not have a hard disk itself, and the image data that can be stored is very limited. In other words, the known network monitoring system usually only performs the stand-alone operation of the video recording function on the camera server 120 itself, instead of processing through the network. In this way, for the user, once a situation occurs, and the camera server 120 cannot be rushed to the scene in real time to issue an order, real-time network video data viewing cannot be performed, and the user must wait for the camera server 120 to transmit data separately. In terms of timeliness Can't wait.

In view of the above problems, if you want to implement the network video recording function for the known network monitoring system, there are generally two ways. One is to pre-set the status conditions of network video recording, such as the movement of objects in a specific range on the screen; Or the form of clip animation, send to monitoring end computer 110 with network transmission modes such as File Transfer Protocol (File Transfer Protocol, FTP) or electronic mail (E-mail) by connecting network. However, due to the limitation of the file size in the way of FTP or E-mail, it is not suitable for a large amount of video data generated by long-term continuous video recording.

In another way, a dedicated application can be executed on the monitoring computer 110 , and the camera server 120 can be controlled by the application to continuously transmit video data back to the monitoring computer 110 for storage. However, in such an approach, the monitoring terminal computer 110 itself performs the work of monitoring and video data storage at the same time, not only the amount of data processing is large, but also the storage device of the computer 110, such as a hard disk, must have a very large capacity, and often needs to be expanded or additionally backed up data, increasing the processing capacity of the computer 110. In addition, since the computer 110 is used as the main control terminal for video data storage, if a problem occurs in the monitoring computer 110, not only the user will lose the monitoring function of each camera server 120, but also the video data storage function will be interrupted accordingly. , resulting in lower reliability of the entire network monitoring system.

Contents of the invention

One object of the present invention is to propose a network image recording system for the problems caused by the video recording function in the above-mentioned known network monitoring system. The traditional camera server is replaced by an image server, and the image server performs the function of controlling network storage, directly The video data is continuously stored in the network storage device.

The purpose of the present invention is achieved like this:

The invention discloses a network image recording system, comprising: at least one image server, used to control at least one camera to take pictures to obtain an image data, and actively send the image data through a link network for storage; at least one network storage device, Connecting to an image server through the link network for receiving and real-time storing continuous image data actively transmitted from at least one image server through the link network, so as to continuously store the continuous video information captured by the above-mentioned camera; And a monitoring device, which is respectively connected to the image server and the network storage device through the link network, and is used for monitoring the image data sent by the image server. In addition, the monitoring device can only be used as a monitoring interface, or can control the network storage device to send the stored image data to the monitoring device.

In the network image recording system of the present invention, the network storage device can be a network disk drive (Network Attached Storage, NAS), and can generate and store backup image data corresponding to the image data.

In addition, the network image recording system of the present invention can be used in various forms of linked networks such as local area network or wide area network.

Description of drawings

FIG. 1 shows a schematic diagram of a known network camera system architecture.

FIG. 2 is a schematic diagram of the architecture of the network video recording system of the present invention.

Detailed ways

2, the network video recording system of the present invention is different from the known technology in that the present invention uses a video server (Video Server) 20 to replace the known photography server, and the present invention uses a network storage device 40.

In FIG. 2, the present invention has a monitoring device 10, such as a computer or a terminal, as the monitoring terminal of the system, which is connected to each image server 20 through a link network (such as a local area network). The function of each image server 20 is to control at least one video camera 30 to take pictures, and obtain the shot continuous image data VD, and send it to the network storage device 40 through the link network; the network storage device 40 can be a network disk drive (Network Attached Storage, NAS), its function is to receive and store the image data VD sent by the image server 20 through the connection network. In addition, generally speaking, the monitoring device 10 is only used as a monitoring interface, but when necessary, the monitoring device 10 can also control the network storage device 40, and send the image data stored in the network storage device 40 to the monitoring device 10 to perform Necessary monitoring.

In the present invention, since the image server 20 directly sends the obtained continuous image data VD to the network storage device 40 through the link network, it is not necessary to install a specific application program on the monitoring device 10 as a monitoring terminal for video data storage. Or use FTP or E-mail to transmit image data for a short time, and then the network video function can be achieved.

In addition, since the network storage device 40 is used to store the image data VD, the network storage device 40, such as a network disk drive, can easily generate and store the backup image data of the image data VD, such as mirror image data, increasing the storage capacity of the image data. Storage security.

Since the network storage device 40 is not attached to the monitoring device 10 or the image server 20, but is an independent component connected to the network, the network storage device 40 has high expandability, and multiple network storage devices 40 can be combined arbitrarily when necessary. , so that when the capacity of one of the network storage devices 40 is insufficient for the image server 20, or when a problem occurs in one of the network storage devices 40, it can be transferred to another network storage device 40 to provide longer Time continuous recording improves the continuous usability and reliability of the network video recording system of the present invention.

Since the network storage device 40 and the monitoring device 10 are independent of each other, and the monitoring device 10 is mainly only used as a monitoring interface, if a problem occurs in the monitoring device 10, it will not affect the operation of the network storage device 40; The control terminal is in the image server 20, so the workload of the monitoring device 10 other than monitoring can be greatly reduced. The user can repair the monitoring device 10 as soon as possible when there is a problem with the monitoring device 10, or even add a new monitoring device to the network video recording system of the present invention to simultaneously perform monitoring operations on each image server 20, so as to avoid There is no risk of problems at the monitoring end, and at the same time, there is no need to worry that the network video recording operation of the video data VD will be affected, ensuring the reliability of the network video recording system of the present invention.

Since some network storage devices, such as the above-mentioned network disk drive (NAS), can provide some security functions, such as protection functions such as security access control (Access Control) or distributed access functions such as disk arrays, it can be more secure. The video data is not easy to be accessed or modified by outsiders improperly, and the video data can be accessed more quickly, safely and stably through the network. Therefore, the present invention can improve the security by using the implementation forms of these network storage devices.

Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any ordinary skilled person can still make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of protection of the invention shall prevail as defined by the appended claims.

Claims (6)

1. A network video recording system, comprising: At least one image server, used to control at least one camera to take pictures to obtain an image data, and actively send the image data through a link network for storage; At least one network storage device is connected to the at least one image server through the above-mentioned link network, and is used to receive and store in real time the continuous image data actively transmitted from the above-mentioned at least one image server through the above-mentioned link network, so as to continuously store the above-mentioned Continuous video information captured by the camera; and A monitoring device is respectively connected to the at least one image server and the at least one network storage device through the link network, and is used for monitoring the image data sent by the at least one image server. 2. The network video recording system according to claim 1, wherein the monitoring device controls the at least one network storage device to send the stored image data to the monitoring device. 3. The network video recording system according to claim 1, wherein the network storage device is a network disk drive. 4. The network image recording system according to claim 1, wherein the network storage device generates and stores backup image data corresponding to the image data. 5. The network video recording system according to claim 1, wherein the link network is a local area network. 6. The network video recording system according to claim 1, wherein the link network is a wide area network.

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