JP4431010B2 - Video data storage method and video data storage system - Google Patents

Description

  The present invention relates to a monitoring system that transmits, receives, and records video captured by an imaging device such as a monitoring camera on a network, and more particularly to a video monitoring method and video monitoring system for storing video that is desired to be stored for a long period of time. .

Conventionally, video surveillance systems have been installed in facilities such as hotels, buildings, convenience stores, financial institutions, dams, and roads for the purpose of crime prevention and accident prevention.
This is because the location to be monitored is imaged with an imaging device such as a camera, the video is transmitted to a monitoring center such as a management office or a security room, and the video transmitted by the supervisor is monitored on a monitor screen. If necessary, warning or warning is performed, or video data is recorded and stored. Video data refers to video, audio, and information accompanying the video (for example, shooting location, shooting date and time, photographer, information on copyright and portrait rights, conditions such as price, etc.).

In recent years, in the field of such a video surveillance system, a network-type video surveillance system that performs monitoring by digitizing a video acquired by an imaging device and transmitting the video via an IP (Internet Protocol) network represented by the Internet. It is spreading.
Currently, network-type video surveillance systems, which are mainstream, deliver live video (raw video) from a video transmission device connected to an imaging device such as a monitoring camera to a video reception device via a network. The system is adapted to a monitoring mode in which a resident supervisor always watches this video and responds according to the situation when a problem occurs.
On the other hand, in the field of video monitoring, in addition to the live type monitoring mainly for live video monitoring as described above, there is also a monitoring mode in which monitoring video is stored and the recorded video is viewed retroactively when a problem occurs. There is a customer need for such record-type monitoring, mainly in stores and stores.

In the network-type video surveillance system, there is a video storage / delivery server that can meet such needs for recording-type surveillance.
An example of the configuration of a network type video surveillance system including this video storage / delivery server will be described with reference to FIG. FIG. 2 is a diagram showing a configuration of a conventional network type video surveillance system.
101 is a network medium, 102 is a video generation device, 103 is a video transmission device, 104 is a video reception device, 105 is a video display device, 106 is a video storage / delivery server, and 107 is a recording medium.

In FIG. 2, the network medium 101 is, for example, a network cable or a wireless LAN.
(Local Area Network), a public line, etc., which plays a role of transmitting transmitted data, and includes network devices such as routers and hubs.
The video transmitting device 103, the video receiving device 104, and the storage / delivery server 106 are connected to the network medium 101 so that they can communicate with each other.
The video generation device 102 is a video generation device having an image sensor such as a camera, for example, and generates light by converting light into electricity.

The video transmission device 103 is, for example, an encoder device that incorporates an interface for receiving video data from the video generation device 102, an image codec, and a network interface. To the network medium 101. For example, if the input video from the video generation device 102 is an analog video, it is digitally converted, and compression processing is performed depending on the transmission band of the network medium 101.
The video generation device 102 and the video transmission device 103 may be combined as one device.

The video receiving device 104 is a decoder device having a built-in interface for outputting video to at least one of a network interface, an image codec, and a video display device 105, for example, and receives video data transmitted via the network medium 101. It is received and converted into a form that can be displayed by the video display device 105 and output to the video display device 105. For example, when the video display device 105 is a television monitor, analog conversion is performed. If the received video data is a compressed video, decompression processing is performed using an image codec.
The video display device 105 displays the supplied video. The video display device 105 is a video display device having projection elements such as a television monitor, a CRT (Cathode-Ray Tube) of a computer, and a liquid crystal monitor, and displays an image by changing electricity to light.

The video receiving device 104 and the video display device 105 may be combined as one device. For example, a form incorporated in a television monitor, a form of a computer connected to a CRT, or a form of a portable terminal such as a mobile phone provided with a display device.
In addition, the video receiving device 104 also includes an operation interface for instructing the storage / delivery server 106 to perform reproduction such as reproduction and fast forward. This interface may be, for example, a GUI (Graphical User Interface) on a computer screen or a control panel terminal connected to the video receiver 104.

The storage / delivery server 106 is, for example, a PC (Personal Computer) having a built-in network interface or an interface to a recording medium, and receives and connects video data transmitted from the video transmission device 102 via the network medium 101. In response to the role of recording the video data in the recorded recording medium 107 and the video distribution request from the video receiving device 104, the requested video data is taken out from the recording medium 107 and transferred to the video receiving device 104 via the network medium 101. Deliver the requested video.
The accumulation / delivery server 106 stores reproduction software. The video receiving device 104 can download the reproduction software and reproduce the video data distributed from the storage / delivery server 106.

The recording medium 107 is a medium for recording video data such as a hard disk or a disk array, for example. Or an interface using an IP network such as SAN (Storage Aea Network) or NAS (Network Attached Storage).

In FIG. 2, the video generation device 102, the video transmission device 103, the video reception device 104, and the video display device 105 are only described one by one. It is also possible to connect a plurality.

The storage / distribution server simultaneously receives and records a plurality of different videos transmitted from the plurality of video transmission devices 102, and in parallel, records a plurality of different arbitrary videos to the plurality of video reception devices 104 in parallel. It is possible to distribute video data simultaneously. A unit that handles a series of videos transmitted from one video transmission device is hereinafter referred to as a channel.

The physical capacity of the recording medium 107 connected to the storage / delivery server 106 is limited. Normally, if recording is continued, there will be a difference in the number of days depending on the size and recording frequency of the recorded video, and eventually the recording medium 107 will be full. And each time you change the recording medium 107,
Alternatively, recording must be stopped to either erase the storage medium 107 and reuse it.
Such a stop is a fatal problem if the system is constantly monitoring and recording (24 hours, 365 days), or if it stops and hits a time zone that requires monitoring or recording. .

In order to overcome this problem, the store / distribution server 106
A so-called circular recording method is adopted in which a virtual recording medium is constructed by software on the recording medium 107, and when it becomes full, the video is automatically overwritten on the old video, and the so-called circular recording method is adopted. Regardless of the physical capacity of 107, non-stop operation is realized.
In addition, the storage / delivery server 106 is a live video in which a recording target disappears in an instant, and is therefore designed to have high performance and high reliability so that there is no omission of recording. Therefore, the recording medium 107 also often has an array configuration so as to have high performance and high reliability. Here, the array configuration refers to redundancy, for example, RAID (Redundant Array Inexpensive
Disks) Refers to other recording medium configurations.
In addition, there exists patent document 1 in the application regarding this case, for example.
JP 2004-112167 A

The above-described circulation recording method in the prior art realizes non-stop operation. On the other hand, however, there is a need for recording-type monitoring systems that not only record but also want to store recorded video for a long period of time. The conventional circulating recording method overwrites the old video with the new video, that is, the recorded old video is erased, so it is difficult to satisfy the above-mentioned needs for storing the recorded video for a long time. . Also, increasing the physical capacity of the recording medium leads to high costs. In addition, since the recording medium has an array configuration for the above-described reason, the storage is not sufficiently easy in terms of physical dimensions such as size and weight.
The object of the present invention is to provide a low-cost and storable product that meets the needs of long-term storage in a system centered on the storage and distribution server as described above, while taking advantage of the non-disruptive operation of the storage and distribution server by the circular recording method. It is to provide a high system and system.
Another object of the present invention is not limited to the recording of the monitoring video, and the necessary unspecified video receiving device for any video data sent from the unspecified video transmitting device side every moment or irregularly. It is an object of the present invention to provide a video data editing, recording, and reproducing method that can be easily edited and recorded on a removable removable recording medium (removable medium).

  To achieve the above object, a video data storage method according to the present invention includes a step of acquiring video data from an imaging unit, a step of recording video data in a first recording device, and a recording in the first recording device. A step of searching the searched video data according to a predetermined search condition, a step of displaying the searched video data as a list of information associated with the searched video data, and selecting and selecting the predetermined video data from the list Reading the recorded video data from the first recording device and recording it on the second recording device.

Preferably, in the video data storage method of the present invention, the video data includes at least one of information from the sensor or time information when the video data is acquired, and the information associated with the searched video data is the sensor. Or at least one of time information when the video data is acquired.
Preferably, in the video data storage method of the present invention, the imaging unit includes a plurality of imaging units, and the video data acquired from each of the plurality of imaging units identifies each of the plurality of imaging units.
An ID (identifier: identifier or identifier) is added, and the information associated with the searched video data further includes an ID.
Preferably, in the video data storing method of the present invention, the step of displaying the searched video data as a list further includes a step of designating an in point and an out point for selecting desired video data. .
Preferably, in the video data storage method of the present invention, the step of recording the selected video data on the second recording device further includes reproduction when reproducing the video data recorded together with the video data to be recorded. Including a step of recording software.
Preferably, in the video data storage method of the present invention, the second recording device is constituted by a removable storage medium.

  The video data storage system of the present invention is combined with a plurality of imaging units that output video data, a transmission unit that sends video data from the plurality of imaging units to a transmission line, and a plurality of imaging units. A first recording device for recording video data from the recording unit, a search processing unit for searching video data recorded in the first recording device according to a predetermined search condition, and video data searched for the searched video data A display unit that displays as a list of information associated with the video data, and a predetermined video data is selected from the list, and the selected video data is read from the first recording device and recorded by the second recording device. It is a preservation system.

Preferably, the video data storage system of the present invention further includes a sensor, wherein the video data includes information from the sensor, and the search information includes information from the sensor.
Preferably, in the video data storage system of the present invention, the video data is further added with time information when the video data is acquired, and the information associated with the searched video data includes the time information.
Preferably, in the video data storage system according to the present invention, the video data acquired from each of the plurality of imaging units is added with an ID identifying each of the plurality of imaging units, and is associated with the searched video data. The information further includes an ID.

As described above, according to the present invention, among videos recorded on the storage / delivery server, videos that are desired to be stored for a long time can be re-recorded by the long-term storage recording device.
That is, the storage / delivery server maintains a non-stop operation that does not allow a recording omission to live video, and facilitates long-term storage of a recording medium with a long-term storage recording device.
Further, according to the present invention, it is possible to record as many videos as necessary, and it is possible to realize saving of recording media, that is, cost reduction. Furthermore, by making removable media usable, it has been easy to save.

In addition, according to the present invention, the cost can be reduced by making it possible to use a removable medium that is generally slow in recording speed but cheap in unit price.
In addition, according to the present invention, by displaying a list of stored long-term storage video together with related information such as remarks, even if the video content is forgotten when viewed after long-term storage, smooth content It is possible to grasp.
In addition, according to the present invention, if the playback software is combined with the video to be played back and stored on the removable media, the playback software can be a similar playback device that can read the removable media even if it is not a dedicated playback device. I was able to play it.
In addition, according to the present invention, it is possible to view a long-term storage video over a long period of time without being affected by changes such as version upgrades of playback software.

The present invention separately provides a storage / delivery server and a device for recording on a recording medium for long-term storage (hereinafter referred to as a long-term storage recording device), which are connected via a network, This is a two-stage system in which a video to be stored for a long time is stored in the form of re-recording with a long-term storage recording device.
That is, the video data storage system of the present invention provides the recording of the conventional cyclic recording method as a positioning of the primary recording apparatus with the highest priority on non-stop operation that does not allow recording omission for live video, The long-term storage recording apparatus is a system that is positioned as a secondary recording apparatus with the emphasis on ease of storage of recording media.

In addition, the long-term storage recording apparatus in the video data storage system of the present invention is a system that can selectively store an arbitrary video on the storage / delivery server by taking advantage of the characteristics of the two-stage system.
In addition, the long-term storage recording apparatus in the video data storage system of the present invention uses a medium (hereinafter referred to as a removable medium) to which the recording medium of the long-term storage recording apparatus is detachable in order to realize the ease of storage of the recording medium.
Further, as long as recording is performed on a removable medium, a dedicated playback device is not always located near the recording medium. By combining the playback software with the video data to be played and storing it on the removable media, playback of the video data stored on the removable media (hereinafter referred to as long-term storage video) can be performed without using a dedicated playback device. Any similar device that can read the removable media can be played.
Furthermore, the video data storage method and video data storage system according to the present invention can store the playback software on the removable medium in combination with the video to be played back, without being affected by the upgrade of the playback software, and the like. It is possible to view long-term stored video over

Furthermore, the video data storage system of the present invention stores a network, a video transmission device that transmits the video data via the network, and the video data transmitted from the video transmission device via the network, Video storage / delivery server for distributing via a network, video receiver for communicating with the video storage / distribution server and the network and receiving video data from the video storage / delivery server, and video receiver coupled to the video receiver And an external recording device for storing the video data from the recording medium on the recording medium, and the video receiving device stores reproduction software for reproducing the video data together with the video data on the recording medium.
Embodiments of the present invention will be described below.

One embodiment of the present invention will be described below.
FIG. 1 is a block diagram showing the configuration of an embodiment of the video storage system of the present invention. Components having the same functions as those described in the prior art of FIG. Reference numeral 108 denotes a long-term storage recording device, 109 removable media, and 110 a video display device.
The video transmission device 103, the video reception device 104, the storage / delivery server 106, and the long-term storage recording device 108 are connected to the network medium 101 so that they can communicate with each other.

The video transmission device 103 may be connected to the sensor 112, and detection information from the sensor 112 may be added to the output signal and output to the network medium 101. When an infrared sensor is used as the sensor 112, when an object passes through the sensing area, a signal is output from the sensor 112. For example, video data 3 seconds before the output signal is converted into sensor information (sensor number, Etc.) and sent to the network medium 101, and the transmission stops 3 seconds after no longer being detected.
In the case where a motion sensor is used as the sensor 112, a signal is output from the sensor 112 when the passage or entry of an object is detected. Etc.) and sent to the network medium 101, and the transmission stops 3 seconds after no longer being detected.
When a sound sensor is used as the sensor 112, when an abnormal sound is detected in the sensing area, a signal is output from the sensor 112 and the same operation is performed. The same applies when other sensors are used.
The video transmission device 103 further adds information specifying the imaging device 102 that acquired the video data and acquisition time information to the sensor information. This time information includes year, month, day, hour, minute, second, and frame number.
In FIG. 1, the video reproduction device 102, the video transmission device 103, the video reception device 104, and the video display device 105 are shown for only one channel. The Further, the recording medium 107 of the storage / delivery server 106 has a storage capacity capable of storing video data for 30 channels for at least one week, for example.

The long-term storage recording device 108 is, for example, a network interface, an image codec, and an interface that outputs video data to the video display device 110, and is a device that has a built-in recording interface to the removable medium 109. The video data transmitted via the network is received, stored in the removable medium 109 as necessary, and converted into a form that can be displayed by the video display device 110 as necessary. Depending on the device, the video display device 110 can not only display video data but also output audio, for example.

The long-term storage recording device 108 and the video display device 110 may be combined as one device. For example, a form incorporated in a television monitor or a form of a computer connected to a CRT may be used.
The long-term storage recording device 108 also includes an operation interface for instructing the storage / distribution server 106 for reproduction such as reproduction and fast forward, and an operation interface for instructing the removable media 109 to store an image. This interface is for example a computer screen
A GUI or a control panel terminal connected to the long-term storage recording device 108 may be used.

Removable media 109 is, for example, a combination of optical media and drives such as DVD-RAM, MO and CD-RW, a hard disk mounted in a removable case, and a hard disk with a removable interface such as USB and IEEE1394. A medium having a role of storing video data.
The removable media 109 is a long-term storage recording device 108, a dedicated interface such as SCSI, ATA, FC, etc., an interface using an IP network such as SAN or NAS, and an interface that can be attached and detached even when power is supplied such as USB or IEEE1394. Etc.

  FIG. 3 is a block diagram showing an internal device configuration of the long-term storage device 108. 301 is a CPU (Central Processing Unit), 302 is a memory, 303 is a network interface, 304 video output interface, 305 is an image codec, 306 is a recording interface, and 307 is a bus. The CPU 301, the memory 302, the network interface 303, the video output interface 304, the image codec 305, and the recording interface 306 are connected to the bus 307, and the memory 302, the network interface 303, the video output interface 304, the image codec 305, and The recording interface 306 is controlled by a signal from the CPU 301.

Next, an embodiment of the video storage method of the present invention will be described with reference to the screen examples of FIG. 1 and FIGS.
As a precondition for video storage according to the present invention, in FIG. 1, it is assumed that the storage / delivery server 106 receives video data transmitted from the video transmission device 103 at any time and records it on the recording medium 107. . In addition, the monitor operates the playback instruction interface of the video receiving device 104 as necessary to take out video data at an arbitrary time from the storage / delivery server 106 and display it on the video display device 105 for monitoring. It is assumed that monitoring is performed as usual.

The main processing flow of one embodiment of the video storage method of the present invention is that the storage / delivery server 106 is obtained by performing the following procedure (operation) on the instruction interface of the long-term storage recording device 108.
Is stored in the removable media 109 at an arbitrary time.
The large processing flow is roughly divided into four stages from the viewpoint of the operation procedure. In the first stage, in order to view the video data recorded in the storage / delivery server 106, a playback operation is performed.
The second step is to select the video data to be stored in the removable media 109 for the video data that can be viewed by the playback operation, and to register the recording location (hereinafter referred to as the storage section). Performs an editing operation such as unregistering or modifying the registered contents on the registered storage section, and the fourth step is an operation to actually store the video data corresponding to the registered storage section on the removable media 109. Is to do.

These four stages can transition to other stages as appropriate. For example, not only the transition from the first stage to the second stage, the third stage, and the fourth stage, but also the return from the third stage to the second stage, after the completion of the fourth stage, It is also possible to return to the second stage and repeat the fourth stage.
The video storage according to the present invention transitions to the initial screen by starting video storage software stored in the memory 302 on the long-term storage recording device 108 in advance or by opening a file associated with the video storage software.

First, the first step, that is, the reproduction operation for viewing the video data recorded in the storage / delivery server 106 will be described.
FIG. 4 shows the video display device 110 when the long-term storage recording device 108 and the video display device 110 are implemented in the form of a computer connected to a CRT, and the instruction interface of the long-term storage recording device 108 is implemented by a GUI. It is a figure explaining reproduction | regeneration operation in an example of the screen displayed on.
FIG. 4 also corresponds to an initial screen when video is stored.
The screen is composed of five areas: a video display area 401, a playback operation area 402, a storage section registration area 403, a storage section list display / operation area 404, and a storage execution instruction area 405.

The video display area 401 is an area for displaying video data extracted from the storage / delivery server 106. The reproduction operation area 402 is an area where buttons for issuing a reproduction instruction to the storage / delivery server 106 are arranged. The storage section registration area 403 is an area in which buttons for registering storage sections are arranged. The storage section list display / operation area 404 is an area for displaying a list of registered storage sections by the button operation of the storage section designation area 403. In addition, buttons for performing editing operations such as changing the order, deleting registration, and correcting registered contents are also arranged on the list of saved sections.
The save execution instruction area 405 is an area in which buttons for instructing to actually record video data corresponding to the list of save sections displayed in the save designation list display / operation area 404 are recorded on the removable medium 109.

FIG. 5 is an enlarged view of the reproduction operation area 402. 501 is the top video jump button, 502 is the frame rewind button, 503 is the rewind button, 504 is the reverse play button, 505 is the stop button, 506 is the forward play button, 507 is the frame forward button, 508 is the fast forward button, and 509 is the end Video jump button, 510 for live video switching button, 511 for fast forward / rewind speed selection selection button, 512 for channel selection button, 513 for year selection button, 514 for month selection button, 515 for day selection button, 516 for hour selection , 517 is a minute selection button, and 518 is a date / time search button.

The top video jump button 501 is a button for giving an instruction to take out the oldest video data from the video data recorded in the storage / delivery server and then set it to a stop state. The frame return button 502 is a button for giving an instruction to take out the video data one frame older than the video data currently displayed in the playback display area 401 and then stop. The rewind button 503 is a button for giving an instruction to continue extracting video at an arbitrary playback speed in the old time direction for the video data currently displayed in the playback display area 401. The reverse playback button 504 is a button for giving an instruction to continue extracting video data in real time in the old time direction for the video data currently displayed in the playback display area 401. The stop button 505 is a button for giving an instruction to stop the video extraction for the video currently displayed in the playback display area 401.

  The forward playback button 506 is a button for giving an instruction to continue extracting video data in real time in a new time direction for the video data currently displayed in the playback display area 401. The fast forward button 507 is a button for giving an instruction to continue extracting video data at an arbitrary playback speed in the new time direction for the video data currently displayed in the playback display area 401. The frame advance button 508 is a button for giving an instruction to take out new video data for one frame from the video data currently displayed in the reproduction display area 401 and then stop. The tail video jump button 509 is a button for giving an instruction to take out the newest video data from the video data recorded in the storage / delivery server and then stop. The live video switching button 510 is a button for giving an instruction to continue taking out the newest video data among the video data recorded in the storage / delivery server. The fast forward / rewind speed designation selection button 511 is a selection button for giving a playback speed when the rewind button 503 and the fast forward button 507 are operated. A channel selection button 512 is a selection button for giving an instruction to switch to channel video data to be viewed.

A year selection button 513, a month selection button 514, a day selection button 515, an hour selection button 516, and a minute selection button 517 are selection buttons for giving a date and time designation for performing a search by a date and time search button described later. The date / time search button 518 is a button for searching for and retrieving video data corresponding to the date / time given by the buttons 513 to 517 and then giving an instruction to enter a stop state.

By operating these buttons 501 to 518, various reproduction instructions are given, and the resulting video data is displayed in the video display area 401. A sequence (procedure) of this series of processes will be described.
When the buttons 501 to 518 are operated, the operation content is detected by the CPU 301. The CPU 301 calculates a video request according to the detected operation content from the previous received video information stored in the memory 302 and the operation content by calculation, and via the network interface 303 and the network medium 101, The data is transmitted to the accumulation / delivery server 106.

The storage / delivery server 106 receives the video request and transmits the video data conforming to the request to the long-term storage recording device 108 via the network medium 101. Long-term storage recorder 108
Receives the video data via the network interface 303 and stores it in the memory 302. The video data stored in the memory 302 is read out and sent to the image codec 405. The image codec 405 decodes and converts the video data into a form that can be displayed by the video display device 110 and stores it again in the memory 302. Again, the video data stored in the memory 302 is output to the video display device 110 via the video output interface 304 and displayed in the video display area of FIG. By repeating this series of processing sequences, video data is reproduced (moved image display).

Next, an operation for selecting video data to be stored in the removable media 109 in the second stage and registering the storage section in a state where the video data is being reproduced by the above-described operation and processing sequence will be described.
As in FIG. 4, FIG. 6 shows a case where the long-term storage recording device 108 and the video display device 110 are implemented in the form of a computer connected to a CRT, and the instruction interface of the long-term storage recording device 108 is implemented by a GUI. It is an example of a screen displayed on the video display device 110, and is a diagram for explaining a storage section registration operation.

As in FIG. 4, the screen is composed of five areas: a video display area 401, a playback operation area 402, a storage section registration area 403, a storage section list display / operation area 404, and a storage execution instruction area 405.
FIG. 7 is an enlarged view of the storage section registration area 403 according to an embodiment of the present invention. 701
Is the In point designation time year display field, 702 is the In point designation time month display field, 703 is the In point designation time date display field, 704 is the In point designation time display field, 705 is the In point designation time display field, 706 Is an In point designation time / second display field, 707 is an In point designation button, and 708 is an In point jump button. The in point is a word indicating the head of the storage section (the end point that is older in time). 709 is the Out point specified time and year display field, 710 is the Out point specified time and month display field, 711 is the Out point specified time and date display field, 712 is the Out point specified time display field, 713 is the Out point specified time display field, 714 is an out point designation time / second display field, 715 is an out point designation button, and 716 is an out point jump button. The out point is a word indicating the end of the storage interval (the end point that is newer in time). 717 is a recording rate selection button, 718 is a remarks input field, 719 is a registration button, and 720 is an operation return button.

In FIG. 7, In point designation time year display field 701, In point designation time month display field 702, In point designation time date display field 703, In point designation time display field 704, In point designation time minute display field 705
The In point designation time / second display column 706 is a column in which the time information of the video data designated by the In point is displayed when the In point designation button 707 is pressed.
The in-point designation button 707 is a button for giving an instruction to the video data currently displayed in the reproduction display area 401 to set the video as the start of the storage section, that is, the in-point.
The in-point jump button 708 is a button for giving an instruction to take out the video data designated as the in-point from the storage / delivery server 106 and then stop. This button is used to display the playback display area 401 once you have specified the IN point, but want to fine-tune the IN point again.
It is used for the purpose of instantly returning the video data displayed on the screen to the in-point video.

Out point specified time year display field 709, Out point specified time month display field 710, Out point specified time day display field 711, Out point specified time display field 712, Out point specified time minute display field 713, Out point specified time second A display field 714 is a field in which time information of a video with an out point designated is displayed when the out point designation button 715 is pressed.
The out point designation button 715 is a button for giving an instruction to the video data currently displayed in the reproduction display area 401 to set the video data as the end of the storage section, that is, the out point.

The out point jump button 716 is a button for taking out the video data designated as the out point from the storage / delivery server 106 and then giving an instruction to enter a stop state. This button is used for instantaneously returning the video data displayed in the reproduction display area 401 to the out-point video when the out-point is once designated but it is desired to finely adjust the out-point again.
The designation by the in-point designation button 707 and the out-point designation button 715 is effective regardless of whether the video data is being reproduced or stopped. Therefore, it is possible to specify the storage section while viewing the video data being reproduced.

The recording rate selection button 717 is a selection button for designating a recording time interval to be saved in the removable medium 109 for the saving section designated by the above operation. Options include "automatic" items in addition to numerical items such as 30 fps (frame per second) and 10 fps. The “automatic” item means that recording is performed by automatically following the recording time interval of the video data recorded in the storage / delivery server 106.
The remarks input field 718 is a character input field for adding remarks to the storage section designated by the above operation.
The registration button 719 is a button for giving an instruction to register the storage section designated by the above-described operation. When this button is pressed, registration is performed and information related to the storage section is displayed in the storage section list display / operation area 404 as shown in FIG.
The operation return button 720 is a button for giving an instruction to restore the operation in the storage section registration area 403.

By operating these buttons 707, 709, 715 to 720, it is possible to register a storage section while viewing video data. A sequence of this series of processing will be described.
When the buttons 707, 709, 715 to 720 are operated, the operation content is detected by the CPU 301. The CPU 301 performs various processes according to the detected operation content. For example, when the In point designation button 707 is pressed, the CPU 301 retrieves the time information related to the video currently displayed in the playback display area 401 from the memory 302 and uses the obtained time information to determine the In point designation time. The contents to be displayed in the display fields 710 to 706 are obtained and written in the memory 302. The display content written in the memory 302 is output to the video display device 110 via the video output interface 304 and displayed.
The same process is performed when the out point designation button 715 is pressed.

  For example, when the in-point jump button 708 is pressed, the CPU 301 takes out the contents displayed in the in-point designation time display fields 710 to 706 from the memory 302 and makes a request for obtaining video data corresponding to the time. The data is transmitted to the storage / delivery server 106 via the network interface 303 and the network medium 101. The storage / delivery server 106 receives the video request and transmits the video conforming to the request to the long-term storage recording device 108 via the network medium 101. The long-term storage recording device 108 receives the video via the network interface 303 and stores it on the memory 302. The video stored in the memory 302 is sent to the image codec 405, decoded and converted into a form that can be displayed on the video display device 110 on the image codec 405, and stored again in the memory 302. Again, the video data stored in the memory 302 is output to the video display device 110 via the video output interface 304 and displayed in the video display area of FIG. The same process is performed when the out point jump button 716 is pressed.

When the recording rate selection button 717 is selected, the CPU 301 writes the selected contents in the memory 302. The selection content written in the memory 302 is output to the video display device 110 via the video output interface 304 and displayed.
When the character input operation is performed in the remark input field 718, the CPU 301 writes the input content in the memory 302. The input content written in the memory 302 is the video output interface.
The image is output to the video display device 110 via 304 and displayed.

When the register button 719 is pressed, the CPU selects the contents displayed in the IN point specified time display fields 710 to 706, the contents displayed in the OUT point specified time display fields 719 to 714, and the recording rate selection button 717. At least one of the input contents and the contents input in the remarks input field 718 is taken out from the memory 302 and separately written in the memory 302 as a set of storage section information. The storage section information written here is output to the video display device 110 via the video output interface 304 and displayed in the storage section list display / operation area 404.

Next, a description will be given of an editing operation such as a third-stage deregistration and registration content correction in a state where the storage section registration is performed by the above-described operation and processing sequence.
As in FIG. 4 and FIG. 6, the long-term storage recording device 108 and the video display device 110 are implemented in the form of a computer connected to a CRT, and the instruction interface of the long-term storage recording device 108 is implemented by a GUI, as in FIG. FIG. 10 is a diagram illustrating an example of a registered storage section editing operation that is an example of a screen displayed on the video display device 110 in the case of being performed.
The screen is the same as in FIGS. 4 and 6, that is, video display area 401, playback operation area 402, storage section registration area 403, storage section list display / operation area 404, and storage execution instruction area 405.
It consists of two areas.

FIG. 9 is an enlarged view of the saved section list display / operation area 404.
FIG. 8 and FIG. 9 are screen examples when three storage sections, that is, the second stage operation is repeated three times.
901 to 903 are storage area selection buttons, 904 to 906 are storage area representative image display fields, 907 to 909 are storage area information display fields, 910 is an expected total display field, 911 is an up movement button, 912 is a down movement button, 913 Is a save section reset button, 914 is a save section delete button, and 915 is a save section all delete button.

The save section selection buttons 901 to 903 are buttons for selecting and specifying a save section to be an editing operation target when various operation buttons 911 to 914 described later are operated. In FIG. 9, the top storage section is designated as an editing operation target. This designation can be selected from a single or a plurality of combinations of input device keys. Further, the operation on the button in the selected state is deselected.
The storage section representative image display columns 904 to 906 are columns for displaying representative images in each registered storage section. The representative image means an image that visually represents the content most visually in the video of the storage section. FIG. 9 shows an example in which the video at the beginning of the storage section (the end point with the older time) is used as a representative image.

Storage section information display fields 907 to 909 are fields for displaying various information in each registered storage section. Examples of information to be displayed include storage section numbers, time information of IN / OUT points, character information input as remarks, channel numbers, recording time intervals, and the like. FIG. 9 shows an example in which the storage section number, the time information of the in / out points, and the character information input as remarks are displayed.

The expected total display column 910 displays as a guide how much the size will be when all the registered storage sections are stored in the removable media 109. This field is usually displayed in the same color as the other fields and button display, for example, black characters, etc., but if the calculated size exceeds the free size of the removable media 109, it will be higher than usual. It is displayed in a conspicuous color, for example, red letters.

The up movement button 911 is a button for giving an instruction to move the display of the selected storage section up by one. When this button 911 is pressed, the selected storage section or sections are replaced with the next unselected storage section. If there is a section corresponding to the top of one of the selected saved sections, nothing will happen even if this button 911 is pressed.

The down movement button 912 is a button for giving an instruction to move the display of the selected storage section down by one. When this button 912 is pressed, the selected storage section or sections are replaced with the next unselected storage section. If at least one of the selected saved sections has a corresponding section at the bottom, nothing happens when this button 912 is pressed.
For example, in FIG. 9, when the down movement button 912 is pressed, the save section selection button 901 and
902, storage section representative image display fields 904 and 905, and storage section information display fields 907 and 908 are switched. However, the storage section numbers displayed in the storage section information display fields 907 and 908 are displayed by reassigning 908 to 1 and 907 to 2.

The save section reset button 913 displays the in-point / out-point time information of the selected save section, the character information input as remarks, and the recording time interval in the in-point specified time display fields 701 to 706 in the save section registration area 403. Out point designation time display fields 709 to 714, recording rate selection buttons 717, and remarks input fields 718 are buttons for giving instructions to be displayed. Retention area reset button 913 is used when the storage area is temporarily registered in the second stage, but the expected total exceeds the available size of removable media 109, and it is necessary to adjust the in / out points. Used when you want to add information to. For example, when the reset button is pressed in FIG. 9, “2002” is displayed in the display field 701, “9” is displayed in the display field 702, “1” is displayed in the display field 703, “13” is displayed in the display field 704, "00" in column 705, "00" in display column 706, "2002" in display column 709, "9" in display column 710, "1" in display column 711, "1" in display column 712 “13”, “15” in the display field 713, “30” in the display field 714, “Automatic” in the display field 717, “PM near parking 10:00” in the display field 718.
The save section reset button 913 is valid only when there is a single selected save section, and when a plurality of save sections are selected, it is considered invalid and nothing happens.

The save section delete button 914 is a button for giving an instruction to delete the selected save section from registration, that is, delete it. In FIG. 9, when the save section delete button 914 is pressed, the registration is deleted and the save section selection button 901, the save section representative image display field 904, and the save section information display field 907 are hidden and displayed below it. The saved section is moved up one position and displayed. At this time, the storage section numbers displayed in the storage section information display fields 908 and 909 are reassigned, so that the display field 908 becomes number 1 and the display field 909 becomes number 2.

The save section all delete button 915 is a button for giving an instruction to delete all registered save sections from the registration, that is, delete them regardless of selection / non-selection. When this button is pressed, the storage section selection buttons 901 to 903, the storage section representative image display fields 904 to 906, and the storage section information display fields 907 to 908 are all hidden, and the storage section list display / Return to operation area 404.
When the resetting is performed in the storage section registration area 403 that can be reset by the storage section reset button 913, the registration is performed again by pressing the registration button 719 again.

FIG. 10 shows an example of a screen when the registration button 719 is pressed again. 1001 is an overwrite inquiry window, 1002 is an overwrite permission button, and 1003 is an overwrite cancel button.
The overwrite inquiry window 1001 is a window that is displayed when the registration button 719 is pressed during resetting. The overwrite permission button 1002 is a button for giving an instruction to overwrite the saved section in which the reset content is registered. The overwrite cancel button 1003 is a button for giving an instruction to cancel overwriting of the reset contents to the registered storage section.

When the overwrite permission button 1002 is pressed, the reset contents are reflected in the form of being overwritten on the target storage section information. When the overwrite cancel button 1003 is pressed , this registration button is regarded as invalid, nothing is stored in the storage section information, and the overwrite inquiry window 1001 is closed.

By operating these buttons 901 to 903 and 911 to 915, an editing operation is performed on the registered storage section. A sequence of this series of processing will be described.
When the buttons 901 to 903 and 911 to 915 are operated, the operation content is detected by the CPU 301. The CPU 301 performs various processes according to the operation content. For example, when the storage section selection button 901 is selected and operated, the CPU 301 determines that the storage section with the storage section number 1 is selected, and information indicating that the storage section with the storage section number 1 is selected in the memory 302. Write (selection). The selection content written in the memory is output to the video display device 110 via the video output interface 304 and displayed as a black circle display indicating the selection. The same processing is performed when the save section selection buttons 902 and 903 are selected and operated.

When the up movement button 911 is pressed, the CPU 301 retrieves the currently selected storage section number from the memory 302, and checks whether No. 1 is included in the extracted storage section number. If it is included, nothing is done and the process is terminated. If it is not included, the storage section number between the storage section having the number and the storage section having the number one smaller than that number in order from the smallest number among the extracted storage section numbers. And is written to the memory 302 again. Repeat for all the saved section numbers that have been retrieved. At the stage where everything is done, the display for all registered saved sections is displayed via the video output interface 304.
Output to video display device 110 and redisplay.
Similar processing is performed when the down movement button 912 is pressed.

When the save section reset button 913 is pressed, the CPU 301 retrieves the information of the currently selected save section number from the memory 302 and confirms that the selected save section is singular. If there are more than one, nothing is done and the process is terminated. If the number is single, the in-point / out-point time information corresponding to the extracted storage section number, the character information input as remarks, and the recording time interval are extracted from the memory 302. The extracted contents are written again in the memory 302 as display contents information for the IN point specified time display fields 701 to 706, the OUT point specified time display fields 709 to 714, the recording rate selection button 717, and the remark input field 718. The display content written in the memory 302 is output to the video display device 110 via the video output interface 304 and displayed.

When the save section deletion button 914 is pressed, the CPU 301 takes out information on the currently selected save section number from the memory 302. Of the retrieved storage section numbers, the in-point / out-point time information of the storage section corresponding to that number, the character information input as remarks, the recording time interval, etc. are erased from the memory 302 in order from the smallest number. Further, the number itself is deleted from the memory 302.
Repeat for all the saved section numbers that have been retrieved. At the end of all, the storage section numbers of all the remaining registered storage sections are renumbered in order from the smallest value, and the display for all registered storage sections is displayed on the video display device 110 via the video output interface 304. Output and redisplay.

When the save section all deletion button 915 is pressed, the CPU 301 takes out information of all registered save section numbers from the memory 302. Of the retrieved storage section numbers, the in-point / out-point time information of the storage section corresponding to that number, the character information input as remarks, the recording time interval, etc. are erased from the memory 302 in order from the smallest number. At the stage where all the processes are completed, a screen without registration is output to the video display device 110 via the video output interface 304 and displayed again.

Next, an operation for actually storing the video corresponding to the registered storage section in the fourth stage in the removable medium 109 in a state where the storage section is registered by the above-described operation and processing sequence will be described.

11, FIG. 11, FIG. 6 and FIG. 8, the long-term storage recording device 108 and the video display device 110 are mounted in the form of a computer connected to a CRT, and the instruction interface of the long-term storage recording device 108 is a GUI. FIG. 6 is a diagram for explaining a save execution operation as an example of a screen displayed on the video display device 110 when implemented in FIG.
The screen is composed of five areas 401 to 405 as in FIG. 4, FIG. 6, and FIG.

FIG. 12 is an enlarged view of the save execution instruction area 405. 1201 is a storage location display field, 1202 is a storage location reference button, 1203 is a remaining capacity display field, 1204 is a storage button, and 1205 is a storage speed selection button.
The storage destination display column 1201 is a column in which the storage destination of the video extracted from the storage / delivery server 106 designated by the storage destination reference button 1202, that is, the folder name in the removable medium is displayed.
The save destination reference button 1202 is a button for designating a folder name in the above-described removable medium. When the save destination reference button 1202 is pressed, a list of folders is displayed, and an instruction is given by selecting from the list.
The remaining capacity display column 1203 is a column in which the free size of the removable medium 109 designated by the save destination reference button 1202 is displayed. The display of the empty size is obtained and displayed when the storage destination is designated by the storage destination reference button 1202.
A save button 1204 is a button for giving an instruction to execute saving to the removable medium 109. When the save button 1204 is pressed, the video corresponding to the registered save interval, that is, the save interval displayed in the save interval list display / operation area 404, is taken out from the storage / delivery server 106 and stored in the removable media 109 in the order of the save interval number. Saved.

The storage speed selection button 1205 is a selection button for giving a processing speed designation in the above-described storage. Options include “normal”, “2 × speed”, “3 × speed”, “highest speed”, etc. “Normal” means “1 × speed”, that is, 30 fps to extract and save video. “Double speed” means that video is extracted and stored at 60 fps, and “3 times speed” is 90 fps. “Highest speed” means that video is extracted and stored at the fastest speed that the system allows.
In this example, there are four types of options, but there may be “n-times speed” (where n is an integer of 4 or more) such as “4-times speed”.

By operating these buttons 1202, 1204, and 1205, a save execution operation can be performed. The sequence of this series of processing will be described next.
When the buttons 1202, 1204, and 1205 are operated, the operation content is detected by the CPU 301. The CPU 301 performs various processes according to the operation content. For example, when the save destination reference button 1202 is pressed, the CPU 301 retrieves information on a list of folders existing in the device from the memory 302, and outputs the list to the video display device 110 via the video output interface 304. indicate. In response to the display, when a folder existing in the removable media to be saved is selected from the list, the CPU 301 writes the information of the folder name into the memory 302, and further, the free space of the removable media 109 including the folder is empty. The size is obtained by inquiring the removable medium 109 via the recording interface 306 and the obtained information is written in the memory 302. The folder name and free space information written in the memory 302 are output to the video display device 110 via the video output interface 304, and are displayed in the storage destination display field 1201 and the remaining capacity display field 1203, respectively.

When the save speed selection button 1205 is selected, the CPU 301 writes information on the selection contents in the memory 302. The written contents are output to the video display device 110 via the video output interface 304 and displayed.
When the save execution button 1204 is pressed, the CPU 301 first confirms whether the playback software is stored in the designated removable media folder. If it is not stored, the playback software prepared in advance in the memory 302 of the long-term storage recording device 108 is taken out and written into the corresponding folder of the removable medium 109 via the recording interface 306. Here, the reproduction software is a set of files necessary for reproduction in addition to the execution program.

The CPU 301 downloads the reproduction software stored in the storage / delivery server 106 and stores it in the memory 302, and reproduces the video data distributed from the storage / distribution server 106.
In this way, the removable medium 109 stores the reproduction software. Therefore, the removable medium 109 can be played back by any video playback device. In other words, the video playback device can play back the video data stored in the removable medium storing the video data so that the video data stored in the playback software can be played back. Reproduction software is suitable for network transmission and storage when a data file is compressed and used with a reduced capacity. Data file compression methods include, for example, the well-known LZH method, ZIP method, and CAB method.

When the playback software is stored in the removable media 109 folder, the CPU 301
Extracts from the memory 302 all the information on the registered storage sections, that is, all the information on the storage sections displayed in the storage section list display / operation area 404.
The CPU 301 calculates a video request to the storage / distribution server 106 using the in-point / out-point time information, the channel number, and the recording time interval from the retrieved storage section information, and the network interface 303, the network medium 101 Storage and delivery server 106
Send to.

The storage / delivery server 106 receives the video request and transmits the video conforming to the request to the long-term storage recording device 108 via the network medium 101. The long-term storage recording device 108 receives the video data via the network interface 303 and stores it in the memory 302. The video stored in the memory 302 is stored in the removable medium 109 via the recording interface 306.
By repeating this series of processing sequences one frame at a time in the ascending order of the storage section number between storage sections, from the IN point to the OUT point within the storage section, all the registered storage section videos are stored. .

Further, the progress status during the saving process is calculated as the ratio (percentage) of the current saving completion frame to the all saving scheduled frames, and the result information is always stored in the memory.
Advances while writing to 302. The contents of the progress status written in the memory 302 are output to the video display device 110 via the video output interface 304 and displayed in the form shown in FIG.

FIG. 13 shows an example of a screen in the middle of executing the saving process when the save execution button 1204 is pressed. 1301 is a progress status display window, 1302 is a progress status display field, 1303
Is a progress bar display field, 1304 is a remaining time prediction display field, and 1305 is a save cancel button.
The progress display window 1301 is displayed when the save execution button 1204 is pressed.
The progress status character display column 1302 is a column for displaying the progress status of the storage process in characters. The number of the storage section currently being processed and the time information of the in / out points of the storage section are displayed.
The progress bar display column 1303 is a column for displaying the progress of the saving process as a percentage bar. The ratio of the currently saved frames to all the saved frames is displayed as a bar.
The remaining time prediction display field 1304 is a field for displaying the estimated time required for the remaining storage process. The prediction of the remaining storage processing time is obtained by calculation from the processing completion rate and the processing time actually required from the start of processing to the present.
The save cancel button 1305 is a button for giving an instruction to cancel the save process. Save button
If 1305 is pressed, the saving process is stopped, and the saving process is terminated in such a manner that the video saved up to that point is validated.

FIG. 25 is a flowchart showing the content of processing for registering storage section information for realizing the above method.
Step 2501 is a step of determining whether or not to perform a reproduction operation by pressing the buttons 501 to 518 in the video operation area and the buttons 708 and 716 in the storage section designation area. If any of the above buttons is pressed, the process proceeds to step 2502, where the reproduction process corresponding to the pressed button is performed, and the display is updated in the video display area 401.

Step 2503 is a step for determining whether or not the in-point designation button 707 has been pressed. In step 2504, the video data displayed in the video display area 401 is designated as the IN point. Step 2505 displays the time information of the video data designated as the IN point at the corresponding location in the storage section registration area 403.
Step 2506 is a step for determining whether or not the out point designation button 715 is pressed. If it is pressed, the process proceeds to Step 2507. In step 2507, the video data displayed in the video display area 401 is designated as the out point. In step 2508, the time information of the video data designated as the out point is displayed in the corresponding section of the storage section registration area 403.

Step 2509 is a step for determining whether or not the registration button 719 is pressed. Step 2510 is a step of determining whether or not the In point is specified. If it is specified, the process proceeds to Step 2511. Step 2511 is a step of determining whether or not an out point is designated. If it is designated, the process proceeds to step 2512. In step 2512, the specified information is registered as storage section information. In step 2513, the registered saved section information is updated to the saved section list display / operation area 404. Step 2514 is a step for initializing each column of the storage section registration area. Step 2515 is a step for determining whether or not the undo button 720 has been pressed. In step 2516, the date and time information of the storage section information registered in step 2512 is displayed again in the storage section registration area.

FIG. 26 is a flowchart showing the content of processing for editing storage section information for realizing the above method.
Step 2601 is a step of determining whether or not the up button 911 is pressed. If it is pressed, the process proceeds to Step 2602. Step 2602 is a step for determining whether or not the storage section selection button is pressed. If it is pressed, the process proceeds to Step 2603. Step 2603 is a step for determining whether or not there are a plurality of storage sections. If there are a plurality of storage sections, the process proceeds to step 2604. Step 2604 is a step of determining whether or not the storage section selected by the storage section selection button is the first storage section. Step 2605 is a step of replacing the information of the selected storage section with the non-selected section one level above. Step 2624 is a step of updating the display of the saved section list display / operation area 404 based on the information replaced in Step 2605.

Step 2606 is a step for determining whether or not the down button 911 has been pressed. Step 2607 is a step of determining whether or not the storage section selection button is pressed. If it is pressed, the process proceeds to Step 2608. Step 2608 is a step of determining whether or not there are a plurality of storage sections. If there are a plurality of storage sections, the process proceeds to Step 2609. Step 2609 is a step for determining whether the storage section selected by the storage section selection button is the last storage section. Step 2610 is a step of exchanging information with the selected storage section and the non-selected section one level below. In this step, the display of the saved section list display / operation area 404 is updated based on the information replaced in step 2610.

Step 2611 is a step for determining whether or not the save section reset button 913 is pressed. Step 2612 is a step for determining whether or not the save section selection button is pressed. If it is pressed, the process proceeds to Step 2613. Step 2613 is a step of displaying the information of the storage section selected by the storage section selection button in the storage section registration area 403. Step 2614 is a step for determining whether or not the registration button 719 has been pressed after editing the storage section. Step 2615 is a step of determining whether or not the overwrite cancel button in the overwrite inquiry window 1001 is pressed. If it is pressed, the resetting of the saving section becomes invalid. If not, the process proceeds to step 2615. Step 2615 is a step for determining whether or not the overwrite permission button 1002 in the overwrite inquiry window 1001 is pressed. Step 2617 is a step of overwriting the information of the saved storage section with the information of the storage section selected by the storage section selection button. Step 2623 is a step of calculating the size when all the registered storage sections are stored on the medium. Step 2624 is a step of updating the display of the saved section list display / operation area 404 based on the information overwritten in Step 2617.

Step 2618 is a step in which it is determined whether or not the save section delete button 914 has been pressed. Step 2619 is a step of determining whether or not the storage section selection button is pressed. If it is pressed, the process proceeds to Step 2620. Step 2620 is a step of deleting the storage section information selected by the storage section selection button. Step 2623 is a step of calculating the size when all the registered storage sections are stored on the medium. Step 2624 is a step of updating the display of the saved section list display / operation area 404 based on the information deleted in step 2620.

Step 2621 is a step for determining whether or not the save section all deletion button 915 is pressed. Step 2622 is a step of deleting all storage section information. Step 2623 is a step of calculating the size when all the registered storage sections are stored on the medium. Step 2624 is a step of updating the display of the saved section list display / operation area 404 based on the information deleted in step 2622.

FIG. 27 is a flowchart showing the content of processing for storing video corresponding to a storage section for realizing the above method in a medium.
Step 2701 is a step for determining whether or not the save destination reference button 1202 has been pressed. Step 2702 is a step of displaying a list of folders in the storage medium. In step 2703, it is determined whether one folder has been selected from the list display. If selected, the process proceeds to step 2704. In step 2704, the folder name of the folder selected in step 2703 is displayed in the save destination display field 1201. It is a step. Step 2705 is a step of calculating the remaining disk capacity of the selected folder. In step 2706, the remaining capacity calculated in step 2705 is displayed in the remaining capacity display field 1203.

  Step 2707 is a step for determining whether or not the save button 1204 has been pressed. Step 2708 is a step of determining whether or not one or more storage sections exist. If there are, the process proceeds to step 2709. Step 2709 is a step of determining whether or not the reproduction software exists in the folder to be stored. If there is no reproduction software, the process proceeds to step 2710 to download the reproduction software to the folder to be stored. Step 2711 is a step of storing video data in the storage section. Step 2712 is a step for judging whether or not the medium to be stored is full. If it is not full, the process proceeds to step 2713. If it is full, the storage is stopped and the storage process is ended. Step 2713 is a step of updating the display of the progress display window. Step 2714 is a step for determining whether or not the save stop button 1305 of the progress status display window 1301 is pressed. If the button is pressed, the save is stopped and the saving process is terminated. If not, the process proceeds to step 2715. Step 2715 is a step for determining whether or not all the video data in the saving section has been saved. If not, the process returns to step 2711 to continue saving the video data, and if saved, the saving process ends.

Next, as another embodiment of the video storage method of the present invention, the order in which video storage / playback software is executed from the long-term storage recording device 108 in the video storage system of FIG. 1 will be described.
As a pre-operation of software execution, a file (hereinafter referred to as a startup file) in which the video storage / playback software in the long-term storage recording device 108 is described in advance is prepared in the storage / delivery server 106 in advance. The startup file also describes the storage location of the original video storage / playback software in the storage / delivery server 106.
First, the storage / delivery server 106 is transmitted from the long-term storage recording device 108 via the network medium 101.
Open the startup file. According to the contents described in the opened startup file, whether the video storage / playback software is stored in the long-term storage recording device 108 is automatically searched from the storage / delivery server 106 via the network medium 101 in the long-term storage recording device 108 Is done. If the video storage / playback software is not stored in the long-term storage recording device 108 as a result of the search, the long-term storage recording device 108 automatically stores the long-term storage via the network medium 101 from the storage / delivery server 106 according to the description of the storage location of the original software. The original software is downloaded to the storage / recording device 108, and is expanded and installed, whereby the original software is stored in the long-term storage / recording device 108. Then, according to the contents described in the startup file, the storage / delivery server
The video storage / playback software stored in the long-term storage recording device 108 is automatically started from 106 via the network medium 101.
If you want to save the video from the video storage / playback software screen of the long-term storage recording device 108 to removable media (press the save button 1204), is the video storage / playback software stored in the specified removable media first? If it is not stored, the video storage / playback software stored in the long-term storage recording device 108 is copied into the corresponding folder of the removable medium.
The above is the description of the video storage and playback software execution method in the video storage system of FIG.

Next, a reproduction method for the stored video recorded by the above-described method of the present invention will be described.
FIG. 14 is a block diagram showing an embodiment of a system configuration for reproducing stored video according to the present invention. 1401 is a network medium, 1402 is a Web server, 1403 is a removable medium, 1404 is a network-type storage video playback device, 1405 is a video display device, 1406 is a stand-alone storage video playback device, 1407 is a video display device, and 1408 is a removable media is there.

The network medium 1401 is, for example, a network cable, a wireless LAN, or a public line, and has a function of transmitting transmitted data. This also includes network devices such as routers and hubs.
The network medium 1401 may be shared with the network medium 101 of FIG. 1, may be connected to each other, or may be separated and separated.

The web server 1402 and the network-type stored video reproduction device 1404 are connected to the network medium 1401 so that they can communicate with each other.
The Web server 1402 is, for example, a PC with a built-in network interface or an interface to a recording medium. Data stored as Web content in the Web server 1402 is sent via the network medium 101 in response to a request from outside the server. And deliver.

Removable media 1403 and 1408 are the same as the removable media 109 shown in FIG. 1 and store video by a video storage system.
The connection between the Web server 1402 and the removable media 1403 is the same as in FIG.

  The network-type stored video playback device 1404 is a decoder device that includes, for example, a network interface, an image codec, and an interface for outputting video to the video display device 1405. The network-type stored video playback device 1404 receives the video transmitted through the network medium 1401 and displays the video. The device 1405 converts it into a displayable form and outputs it. For example, when the video display device 1405 is a television monitor, analog conversion is performed. If the received video is a compressed video, the decompression process is performed using an image codec.

The video display devices 1405 and 1407 are the same as the video display device 105 of FIG.
Stand-alone storage video playback device 1406 includes, for example, an image codec and a video display device.
Decoder with built-in interface for outputting video to 1407 and recording interface to removable media 1408. Video is read from removable media 1408 via the recording interface, converted to a format that can be displayed by video display device 1407, and output. . For example, when the video display device 1407 is a television monitor, analog conversion is performed. If the received video data is a compressed video, decompression processing is performed using an image codec. The stand-alone storage video playback device 1406 is “stand-alone” because it does not use the network medium 1401 for video playback, but it is not used even if it has a built-in network interface and is connected to the network medium 1401. It does n’t matter.

  Both the network type stored video reproduction apparatus 1404 and the stand-alone type stored video reproduction apparatus 1406 may be combined with the video display apparatus 1405 as one apparatus. For example, there are a form incorporated in a television monitor, a form of a computer connected with a CRT, or a form of a portable terminal such as a mobile phone provided with a display device.

  In addition, both the network-type stored video playback device 1404 and the stand-alone type stored video playback device 1406 also incorporate an operation interface for issuing playback instructions such as playback and fast-forward. This interface may be, for example, a GUI on a computer screen or a control panel terminal connected to the apparatus.

  The connection between the stand-alone type stored video reproduction apparatus 1406 and the removable medium 1408 is also the same as in the case of FIG.

FIG. 15 is a block diagram showing an internal device configuration of the network-type stored video reproduction apparatus 1404. 1501 is CPU, 1502 is memory, 1503 is network interface, 1504
Is a video output interface, 1505 is an image codec, and 1506 is a bus.
The CPU 1501, the memory 1502, the network interface 1503, the video output interface 1504, and the image codec 1505 are connected to the bus 1506, and the CPU 1501, the memory 1502, the network interface 1503, the video output interface 1504, and the image codec 1505 are It is controlled via bus 1506 by the signal from 1501.

  FIG. 16 is a diagram showing an internal device configuration of the stand-alone type stored video reproduction apparatus 1406. 1601 is a CPU, 1602 is a memory, 1603 is a video output interface, 1604 is an image codec, 1605 is a recording interface, and 1606 is a bus. The CPU 1601, the memory 1602, the video output interface 1603, the image codec 1604, and the recording interface 1605 are connected to the bus 1606, and the CPU 1601, the memory 1602, the video output interface 1603, the image codec 1604, and the recording interface 1605 are It is controlled by the signal from CPU 1601.

Next, an embodiment of the stored video reproduction method of the present invention will be described using the screen examples of FIGS. 14 and 17 to 22.
Both playback is realized by superimposing playback software on a web browser. The stand-alone type transitions to the initial screen by opening a startup file (described later) stored in the removable media 1408 with a Web browser (refer to local file) when saving video. For the network type, set the Web server so that the folder included in the removable media 1403 is an externally disclosed folder, and then the URL (Uniformed Resource Locator) for the startup file in that folder via the Web server via the Web server Transitions to the initial screen by referring to it.

  Both the network and stand-alone types differ only in the system configuration and the initial operations leading to the initial screen, and the subsequent operations are exactly the same so that the user can operate without being aware of the differences between the network and stand-alone types. It has become.

FIG. 17 is an example of a screen displayed on the video display devices 1405 and 1407, and is an example of an initial screen for storing video playback.
The screen is composed of three areas: 1701 is a playback video display area, 1702 is a playback operation area, and 1703 is a video list display area.
The playback video display area 1701 is an area for displaying video stored in the removable media 1403 or 1408.
The playback operation area 1702 is an area where buttons for issuing playback instructions are arranged.
The video list display area 1703 is an area that displays a list of videos stored on the removable medium.

FIG. 18 is an enlarged view of the reproduction operation area 1702 according to the embodiment of the present invention. 1801
Is the top video jump button, 1802 is the frame rewind button, 1803 is the rewind button, 1804 is the reverse play button, 1805 is the stop button, 1806 is the forward play button, 1807 is the frame forward button, 1808 is the fast forward button, and 1809 is the end video Jump button, 1810 for fast forward / rewind speed selection selection button, 1811 for year selection button, 1812 for month selection button, 1813 for day selection button, 1814 for hour selection button, 1815 for minute selection button, 1816 for date search button Yes, the functions of these buttons are the same as in FIG. 5. In the case of FIG. 5, the channel video on the storage / delivery server is the target of playback operation, whereas in FIG. 18, the storage on the removable medium is performed. Video is subject to playback operations.

FIG. 19 is an enlarged view of the video list display area 1703 according to an embodiment of the present invention. FIG. 19 shows an example in which seven videos are stored on a removable medium, and four of them are displayed on one screen. The remaining three videos are displayed by scrolling.
1901 to 1904 are video selection buttons, 1905 to 1908 are representative image display fields, 1909 to 1912 are various information display fields, and 1913 is a mode switching button.

Video selection buttons 1901 to 1904 are buttons for giving an instruction to select a video to be reproduced. By pressing these buttons, the video to be played is determined, and playback is possible by operating the buttons arranged in the playback operation area 1702.
In this example, the selection by pressing the video selection buttons 1901 to 1904 is only a single selection, but a plurality of selections are possible by providing a plurality of reproduction video display areas.

The representative image display columns 1905 to 1908 are columns in which representative images of each video are displayed. Various information display fields 1909 to 1912 are fields for displaying related information of each video, that is, channel numbers and remarks specified at the time of saving, in / out time, and the like.
In this way, the video list display area 1703 allows the removable media 1403 and 1408 to be displayed.
You can see at a glance what kind of images are stored inside.

  The mode switching button 1913 is a button for giving a unit switching instruction for a video to be reproduced. In FIG. 17, the video is displayed / processed in units of the in / out points designated at the time of saving, that is, the video of the saved section. By pressing this mode switching button 1913, Display / processing is performed in units of video (hereinafter referred to as storage execution video) data for each storage execution at the time of storage. You can switch between the two modes by pressing this button again.

In FIG. 19, when one of the video selection buttons, for example, button 1903 is pressed, the screen is switched as shown in FIG. In the playback video display area 1701, the top video of the selected video is displayed and is in a stopped state (selected state). In this state, the buttons arranged in the playback operation area 1702 are operated to perform playback.
In FIG. 19, when playback, for example, forward playback, is performed, playback starts from the In point of the storage section video of the button 1903 to the Out point.

  When another video selection button is pressed during various playbacks or in a selected state, the process is stopped during playback and the playback target is switched to another video. In the playback video display area 1701, the first video of the newly selected video is displayed and is in a stopped state (selected state).

  In FIG. 17 or FIG. 20, when the mode switch button 1913 is pressed, the screen is switched as shown in FIG. FIG. 21 shows an initial screen when the playback mode is switched to the save execution video mode. Similarly to FIG. 17, the playback video display area 1701, the playback operation area 1702, and the video list display area 1703 are composed of three areas.

FIG. 22 is an enlarged view of the video list display area 1703 of FIG. FIG. 22 shows an example of the present invention, in which two storage execution videos are stored and displayed on a removable medium. 2201 and 2202 are video selection buttons, 2203 and 2204 are representative image display fields, and 2205 and 2206.
Are various information display columns, and 2207 to 2213 are representative images.
The video selection buttons 2201 and 2202 are buttons for giving an instruction to select video data to be reproduced, as in FIG. Pressing one of the video selection buttons 2201 and 2202 determines the video to be played back, and playback is possible by operating the button group arranged in the playback operation area 1702. In this example, video selection buttons 2201 and 2202
The selection by is only a single selection, but a plurality of selections are possible by providing a plurality of reproduction video display areas.

The representative image display fields 2203 and 2204 are fields in which representative images of each video data are displayed. Unlike the storage section video mode of FIG. 19, a plurality of representative images 2207 to 2213 are displayed.
A plurality of these representative images are obtained by displaying each representative image of the storage section video included in each video. That is, FIG. 19 shows a total of two storage execution videos, one storage execution video composed of four storage section videos having representative images 2207 to 2210 and one storage execution video composed of three storage section videos having representative images 2211 to 2213. This indicates that the save execution video is saved on a removable medium.
Various information display columns 2204 and 2205 are columns in which related information of each video, that is, remarks specified at the time of saving, are displayed.

In FIG. 21, a video selection button, for example. When the button 2201 is pressed, the screen is switched as shown in FIG. In the playback video display area 1701, the top video of the selected video is displayed and is in a stopped state (selected state). In this state, playback is performed by operating the buttons arranged in the playback operation area 1702.
In FIG. 22, when playback, for example, forward playback, is performed, playback starts from the IN point of the storage section video data having the representative image 2207, the out point of the video data, and the storage section video data having the representative image 2208. The processing is performed in the order of the IN point to the OUT point, the IN point to the OUT point of the storage interval video data having the representative image 2209, and the IN point to the OUT point of the storage interval video data having the representative image 2210.

When another video selection button is pressed during various playbacks or in a selected state, the process is stopped during playback and the playback target is switched to another video. Playback video display area
In 1701, the first video of the newly selected video is displayed and is in a stopped state (selected state).

Regarding the above-described video selection and video playback operations, a series of processing sequences will be described with reference to FIGS. 15 (16) and 23.
FIG. 23 shows an example of the data description structure in the startup file opened by URL reference or local file reference by the Web browser at the time of startup. 2301 is a startup file, 2302 is a playback software information description, 2303 to 2305 are storage section video information descriptions, 2306
, 2307 is a storage execution video information description, 2308 is a stream file name description, and 2309 is an order description.

As described above, the playback process of the startup file 2301 starts by referring to this file with a URL or a local file using a Web browser. The startup file 2301 is stored in the removable medium together with the storage of the video data when executing the video storage.
The playback software information description 2302 describes information related to software that plays back video stored on the removable medium. With this description, the playback software is started up by the Web browser, and the playback process described later is performed. This playback software may be, for example, a program written in a language that does not depend on the model (for example, an object-oriented language), or may operate in most Web browser environments even if it depends on the model. It may be another plug-in type program written in a language.

Storage section video information descriptions 2303 to 2305 describe information in which videos stored in the removable medium are grouped in units of storage section videos. FIG. 19 shows the display based on this information. In this example, only the minimum necessary information is illustrated, but various other information related to the section video information is also described here.
The stored execution video information descriptions 2306 and 2307 describe information in which videos stored on the removable medium are grouped in units of stored execution video. FIG. 22 shows the display based on this information. However, since the storage execution video includes the storage section video, it is redundant to describe information such as the in point and the out point here as well. Therefore, as in the order description 2309, only the order of the saved section video is described as the reference information. Regarding remarks, since there is remark information specific to the stored execution video, a description is provided separately.

  In FIG. 23, all file names whose descriptions end with “˜file” are prefixed with “. ¥ (dot and circle mark)”. This describes all file names relative to the startup file. This is a device to make it possible to play back video stored on a single removable medium, whether it is a network type or a stand-alone type. Regardless, it is also a device for enabling playback.

  The stream file name description 2308 describes reference information to the stream file. A stream file is a file that describes the playback order and storage position of frame data for all frames included in the storage section video data. An example of the data description structure in the file is shown in FIG. A stream file 2401 is assumed to be “. \ Stream2.xml” described in the stream file name description 2308 in this example. 2402 to 2408 are frame information descriptions.

  Frame information descriptions 2402 to 2408 describe information of each frame, and describe the order of numbers by the number and the storage location of the frame data of the frames by the name of the video file. In this example, the file name reference description format is used. However, when a plurality of frames are in one file, a description format of file name + byte offset value is also possible.

  The startup file 2301 and the stream file 2401 are illustrated as separate files in this embodiment, but may be provided in a combined form. In the present embodiment, the text file format is exemplified, but storage in a binary file format is also possible.

In FIG. 17, when the video selection button is pressed, the CPU 1501 or the CPU 1601 detects that the button has been pressed and the pressed object. For example, when the video selection button 1903 is pressed, the CPU 1501 or CPU 1601 detects that the pressed button is the video selection button 1903, and stores information about the storage section video of the video selection button 1903 from the memory 1502 or 1602. Take out. This information is the content described in the save section video information description 2305 of the startup file 2301.

The contents of the description of the startup file 2301 are read by the Web browser when the startup file is first referred to as a URL or local file. In the case of a URL, the file is extracted from the removable medium 1403 connected to the web server 1402 via the network interface 1503. Separately stored in the memory 1503 prepared area.

First, the CPU 1501 or CPU 1601 writes the number information in the extracted information into the memory 1502 or 1602 as the currently selected storage section video. The selection number information written in the memory 1502 or 1602 is output to and displayed on the video display devices 1405 and 1407 via the video output interface 1504 or 1603 as a black circle display indicating the selection.

Next, the CPU 1501 or 1601 reads the stream file name information in the extracted information and extracts the described stream file. When the startup file is a URL reference for the first time, the extraction is performed by the playback software started from the removable medium 1403 connected to the Web server 1402 via the network interface 1503. Further, when a local file is referred to, it is executed by the activated playback software from the removable medium 1408 via the recording interface 1605.
CPU 1501 or 1601 has a description with frame number 0 from the file contents.
That is, the description about the first frame is read, and the video file described in the description is read from the removable medium 1403 connected to the web server 1402 via the network interface 1503 or the removable medium 1408 via the recording interface 1605. Read from and stored in memory 1502 or 1602. The video stored in the memory 1502 or 1602 is sent to the image codec 1505 or 1604. The image codec 1505 or 1604 decodes and converts it into a form that can be displayed on the video display device 1405 or 1407, and is stored again in the memory 1502. The The video data stored again in the memory 1502 is output to the video display devices 1405 and 1407 via the video output interface 1504 and displayed in the playback video display area 1701 in FIG.

In FIG. 20, when the buttons 1801 to 1816 arranged in the reproduction operation area 1702 are operated, the operation content is detected by the CPU 1501 or 1601. Depending on the detected operation content, the CPU 1501 or 1601 calculates the frame number of the video data to be read next from the frame number and operation content that was previously displayed and stored in the memory 1502 or 1602, and calculates them. A frame description having a frame number is detected from the stream file, and the video file described in the detected description is read from the removable media 1403 connected to the web server 1402 via the network interface 1503 or recorded. Read from removable media 1408 via interface 1605 and store in memory 1502 or 1602.
The subsequent processing until one frame is displayed is the same as when the above-described video selection button is pressed, and reproduction (moving image display) is performed by repeating this series of processing sequences.
Video selection and video playback operations for the stored execution video are realized by substantially the same processing sequence.
The above is the description of the stored video playback method in the present invention.

As described above, according to the above-described embodiment, the storage / delivery server and the long-term storage recording device are separately provided, connected to each other via a network, and the video that is to be stored for a long time among the videos recorded on the storage / distribution server. By adopting a two-stage configuration in which re-recording is performed in the form of re-recording with a long-term storage recording device, it is possible to provide a system that compensates for each weakness and takes advantage of the advantages.
That is, the storage / delivery server maintains a non-stop operation that does not allow recording omission to live video, and the long-term storage recording device facilitates long-term storage of the recording medium.
The long-term storage recording device can record as many videos as necessary by providing a method that can selectively store any video on the storage and distribution server, and a method that makes it easy to grasp the stored content visually. Thus, saving of the recording medium, that is, cost reduction was realized.

In addition, the long-term storage recording device has realized the ease of storage by providing a system that can use removable media.
In addition, the long-term storage recording apparatus has realized cost reduction by providing a method that can use a removable medium whose recording speed is generally slow but the medium unit price is low.
The long-term storage recording device has realized the ease of storage by providing a method that can use removable media.
In addition, the stored video playback device provides a method to display a list of stored long-term stored video together with related information such as remarks, so that the content of the video can be forgotten when viewed after long-term storage. Smooth content grasp is possible.

In addition, by providing a method for storing playback software on a removable medium in combination with video to be played back, even if it is not a dedicated playback device, it can be played back by a similar playback device that can read the removable media. I did it.
Furthermore, by providing the above method, it has become possible to view long-term stored video over a long period of time without being affected by the upgrade of the playback software.

The block diagram which shows the structure of one Example of the image | video storage system of this invention. The figure which shows the structure of the conventional network type | mold video surveillance system. The block diagram which shows the internal apparatus structure of the long-term storage apparatus of this invention. The figure which shows one Example of the screen displayed on the video display apparatus of this invention. The figure which shows one Example of the screen which expanded and displayed the reproduction | regeneration operation area of this invention. The figure which shows one Example of the screen displayed on the video display apparatus of this invention. The figure which shows one Example of the screen which expanded and displayed the preservation | save area registration area of this invention. The figure which shows one Example of the screen displayed on the video display apparatus of this invention. The figure which shows one Example of the screen which expanded and displayed the preservation | save area list display / operation area of this invention. The figure which shows one Example of the screen displayed on the video display apparatus of this invention. The figure which shows one Example of the screen displayed on the video display apparatus of this invention. The figure which shows one Example of the screen which expanded and displayed the preservation | save execution instruction | indication area of this invention. The figure which shows one Example of the screen displayed on the video display apparatus of this invention. The block diagram which shows one Example of the system configuration | structure which performs the preservation | save image reproduction of this invention. The block diagram which shows the internal apparatus structure of the network type | mold preservation | save video reproduction | regeneration apparatus of one Example of this invention. The block diagram which shows the internal apparatus structure of the stand-alone type | mold preservation | save video reproduction | regeneration apparatus of one Example of this invention. The figure which shows one Example of the screen displayed on the video display apparatus of this invention. The figure which shows one Example of the screen which expanded and displayed the reproduction | regeneration operation area of this invention. The figure which shows one Example of the screen which expandedly displayed the video list display area of FIG. The figure which shows one Example of the screen displayed on the video display apparatus of this invention. The figure which shows one Example of the screen displayed on the video display apparatus of this invention. The figure which shows one Example of the screen which expanded and displayed the image | video list display area of this invention. The figure which shows one Example of the data description structure in the starting file of this invention. The figure which shows one Example of the data description structure in the stream file of this invention. The flowchart which showed one Example of the content of the process which registers the preservation | save area information of this invention. The flowchart which showed one Example of the content of the process which edits the preservation | save area information of this invention. The flowchart which showed one Example of the content of the process which preserve | saves the image | video applicable to the preservation | save area of this invention.

Explanation of symbols

101: Network medium, 102: Video generation device, 103: Video transmission device, 104: Video reception device, 105: Video display device, 106: Video storage / delivery server, 107: Recording medium, 108: Long-term storage recording device, 109: Removable media, 110: Video display device, 301: CPU,
302: Memory, 303: Network interface, 304: Video output interface, 305: Image codec, 306: Recording interface, 307: Bus, 401: Video display area, 402: Playback operation area, 403: Storage section registration area, 404 : Save section list display / operation area, 405: Save execution instruction area, 501: First video jump button, 502: Frame rewind button, 503: Rewind button, 504: Reverse play button, 505: Stop button, 506: Forward play Button, 507: frame advance button, 508: fast forward button, 509: tail video jump button, 510: live video switching button, 511: fast forward / rewind speed designation selection button, 512: channel selection button, 513: year selection button, 514: Month selection button, 515: Day selection button, 516: Hour selection button, 517: Minute selection button, 518: Date search button, 701 In point designation time year display field, 702: In point designation time month display field, 703: In point designation time date display field, 704: In point designation time display field, 705: In point designation time display field, 706: In point designation time second display field, 707: In point designation button, 708: In point jump button, 709: Out point designation time year display field, 710: Out point designation time month display field, 711: Out point designation time and date display 712: Out point specified time display field, 713: Out point specified time minute display field, 714: Out point specified time second display field, 715: Out point specified button, 716: Out point jump button, 717: Recording rate Selection button, 718: Remark input field, 719: Registration button, 720: Operation return button, 901 to 903: Storage section selection button, 904 to 906: Storage section representative image display section, 907 to 909: Storage section information display section, 910: Expected total display column, 911: Up button, 91 2: Down button, 913: Save section reset button, 914: Save section delete button, 915: Save section all delete button, 1001: Overwrite inquiry window, 1002: Overwrite enable button, 1003: Overwrite stop button, 1201: Save Destination display field, 1202: Save destination reference button, 1203: Remaining capacity display field, 1204: Save button, 1205: Save speed selection button, 1301: Progress status display window, 1302: Progress status character display field, 1303: Progress bar Display column, 1304: Remaining time prediction display column, 1305: Save stop button, 1401: Network media, 1402: Web server, 1403: Removable media, 1404: Network-type stored video playback device, 1405: Video display device, 1406: Stand-alone Type storage video playback device, 1407: Video display device, 1408: Removable media, 1501: CPU, 1502: Memory, 1503: Network interface 1504: Video output interface, 1505: Image codec, 1506: Bus, 1601: CPU, 1602: Memory, 1603: Video output interface, 1604: Image codec, 1605: Recording interface, 1606: Bus, 1701: Playback video display Area, 1702: Playback operation area, 1703: Video list display area, 1801: First video jump button, 1802: Frame backward button, 1803: Rewind button, 1804: Reverse playback button, 1805: Stop button, 1806: Forward playback button , 1807: Frame advance button, 1808: Fast forward button, 1809: Trailing video jump button, 1810: Fast forward / rewind speed designation selection button, 1811: Year selection button, 1812: Month selection button, 1813: Day selection button, 1814: Time selection button, 1815: Minute selection button, 1816: Date / time search button, 1901-1904: Video selection button, 1905-1908: Representative image display field, 1909- 1912: Various information display column, 1913: Mode switching button, 2201, 2202: Video selection button, 2203, 2204: Representative image display column, 2205, 2206: Various information display column, 2207-2213: Representative image, 2301: Startup file 2302: Playback software information description, 2303 to 2305: Storage section video information description, 2306, 2307: Storage execution video information description, 2308: Stream file name description, 2309: Order description, 2401: Stream file, 2402 to 2408: Frame Information description.

Claims (2)

In the video data storage method for searching video data recorded in the first recording device and recording the video data in the removable medium by the second recording device via the transmission line, the video storage stored in the second recording device By launching the software, the display unit displays a playback operation area screen for displaying search information, a save section list display operation area screen for selecting video data to be recorded on the removable media, and the selection To display a screen of a storage execution instruction area for instructing storage of the selected video data, and to reproduce the video data stored in the second recording device together with the video data associated with the selected search information Is a method for saving video data recorded on the removable medium, the storage section display operation area On the surface, characterized in that the image data selected by the user to display the expected size of the image data when it is recorded on the removable medium, displays the empty size of the removable medium to the storage execution instruction area How to save video data. A first recording device that records video data, a transmission path, a display unit, and the first recording device via the transmission path are coupled to the playback operation area, a storage section list display operation area, and a storage Displaying an execution instruction area on the display unit, storing video storage software for recording video data on the removable medium and playback software for reproducing video data, and starting the video storage software, the display unit Display the search information, select search information of the video data corresponding to the user's instruction from the displayed search information, and read the video data associated with the selected search information from the first recording device And a second recording device for recording the reproduction software together with the video data associated with the search information on a removable medium ,
The second recording device displays an expected size amount of the video data when the video data selected by the user is recorded on the removable medium in the storage section list display operation area, and the storage execution instruction area displays the above-mentioned size in the storage execution instruction area. A video data storage system that displays the amount of available removable media .