JP2007108846A - Data output device and data output method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data output device and a data output method for carrying out copying work with simple operation even when copying only the data in a specified range without needing to provide a large-sized and complicated user interface. <P>SOLUTION: The data output device 100 is constituted to output data stored beforehand in a predetermined data storage part 120, to an external data recording medium 200 capable of reading and writing data. In this case, a data output control part 150 is provided for checking whether specified information showing at least the range of data to be output exists on the external data recording medium 200, taking out data in the corresponding range out of data stored in the data storage part 120 when the specified information exists, and outputting the data to the external data recording medium 200. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a data output device that outputs data such as images stored in advance in a predetermined data storage unit to an external data recording medium capable of reading and writing data.

  For example, when a device such as an ATM (automated teller machine) is installed in various financial institutions, there is a possibility that various troubles may occur. Therefore, surveillance cameras are often installed in the same place. However, it is a difficult task for humans to constantly monitor the video of the surveillance camera in real time. Therefore, in the event that some kind of trouble actually occurs, the captured images are stored as digital data in a recording device such as a hard disk so that past images captured by the surveillance camera can be referred to as necessary. Things have been done.

  Therefore, in the event that some trouble occurs at the ATM and surveillance camera installation location, the manager of the financial institution or the manager of the management company goes from the company to the site (location of the surveillance camera) and installs it on the recording device. A part or all of the stored data is copied to a predetermined data recording medium (for example, various disks and cards) and taken back to the company.

  As techniques relating to such data copying, for example, techniques disclosed in Patent Document 1 and Patent Document 2 are known. Patent Document 1 discloses a technique for automatically generating a new card by copying the contents of an old card. Patent Document 2 discloses a technique in which a USB memory is adopted as an external data recording medium, and a copying program is automatically started only by connecting the USB memory to a computer.

JP 11-328322 A JP 2004-318487 A

  For example, when trying to copy and collect image data shot and recorded by a surveillance camera as described above in order to investigate the cause of a trouble that has occurred, it is usually from a huge amount of accumulated data. It is only necessary to extract and collect only a part of the data actually required. When collecting all the data, the administrator needs to carry a large capacity external data recording medium, and it takes a long time to copy.

  However, in order to take out and copy only a part of the data actually required from the accumulated data, an input operation for selecting the corresponding data is required. In order to enable such an input operation, a user interface is required, and it is necessary to add a display device for displaying various information, a keyboard for receiving input operations, and the like to the image recording apparatus.

  However, when a display device or a keyboard is added, there is a problem that the image recording device becomes large. In addition, there is a problem that an administrator has to secure a space necessary for operating the keyboard. On the other hand, there are many cases where a small user interface is difficult to understand an operation method and an operation procedure, and it is difficult to operate unless a skilled administrator, and there is a problem that it takes a long time to copy.

  The present invention has been made in view of the above circumstances, eliminates the need to provide a large and complicated user interface, and copies only a specified range of data with a simple operation. It is an object of the present invention to provide a data output device and a data output method capable of performing work.

  A first aspect of the present invention is a data output device for outputting data stored in advance in a predetermined data storage unit to an external data recording medium capable of reading and writing data, the external data recording A designation information detection unit that detects whether or not designation information representing at least a range of data to be output exists on the medium; and, if the designation information exists, of the data accumulated in the data accumulation unit A data output device is provided that includes a data reading unit that reads data within a corresponding range and a data output unit that outputs the read data to the external data recording medium.

  With this configuration, if the specified information is written in advance on the external data recording medium that is the copy destination, the range of data to be output is automatically recognized according to the contents of the specified information, the corresponding data is extracted, and the external data It can be output to a recording medium. Accordingly, the input operation to be performed by the user who performs the copying operation is very simple, and it is not necessary to provide a special user interface.

  According to a second aspect of the present invention, in the data output device according to the first aspect, the data reading unit stores the time or data when the data to be output is generated according to the information included in the designation information. The range of data to be output is specified by searching the specified time.

  With this configuration, for example, when there are a large number of data that are generated and stored in time series, such as image data periodically captured by a monitoring camera, the shooting time or recording time of each data By referring to this information, the necessary copy range can be easily specified.

  Thirdly, in the data output device according to the second aspect, when the designation information is not detected by the designation information detection unit, the data reading unit stores the data accumulated in the data accumulation unit. Among these, the data is read in order in the arrangement order from the newest data to the oldest data.

  With this configuration, copying can be executed even when the range of data to be output for copying is not specified by the specification information. In addition, since the data is output in order from the most recent data to the oldest data, even if the storage capacity of the external data recording medium is relatively small, the data actually required is missing. The possibility of doing is low.

  Fourthly, the present invention provides the data output device according to any one of the first to third aspects, wherein the security information represents a specific user or a specific device to which an access authority is given in advance as a data output destination. A security information holding unit that holds the information, the designated information detection unit refers to the security information holding unit, and checks whether information matching the security information exists in the external data recording medium, Only when they coincide with each other, the data output is permitted to be read by the data reading unit.

  With this configuration, for example, by assigning a specific ID or password as security information, data other than an external data recording medium holding designated information created by an administrator who knows the security information Is prohibited, so that information leakage to outsiders can be prevented. Further, since the security information is stored in advance in the external data recording medium, it is not necessary for the user to input security information when copying data from the data output device to the external data recording medium.

  Fifthly, the present invention provides the data output device according to any one of the first to fourth aspects, wherein the data output unit outputs at least the corresponding data output for each designation item included in the designation information. Log information indicating success or failure is output to the external data recording medium.

  With this configuration, by referring to the log information stored in the external data recording medium, the administrator can confirm whether or not the data output operation for copying has been performed correctly. Therefore, it is not necessary to provide a data output device with a user interface for displaying the operation status of the device.

  Sixthly, the present invention provides a data output method for outputting data stored in advance in a predetermined data storage unit to an external data recording medium capable of reading and writing data, wherein the external data recording A step of detecting whether or not at least designation information indicating a range of data to be output exists on the medium, and when the designation information exists, the data corresponds to the data accumulated in the data accumulation unit A data output method including a step of reading data within a range and a step of outputting the read data to the external data recording medium is provided.

  With this method, if the specified information is written in advance on the external data recording medium that is the copy destination, the range of data to be output is automatically recognized according to the contents of the specified information, the corresponding data is taken out and the external data is extracted. It can be output to a recording medium. Accordingly, the input operation to be performed by the user who performs the copying operation is very simple, and it is not necessary to provide a special user interface.

  Seventhly, the present invention provides a data output program for executing the steps described in the sixth aspect.

  With this program, if the specified information is written in advance on the external data recording medium that is the copy destination, the range of data to be output is automatically recognized according to the contents of the specified information, the corresponding data is extracted, and the external data It can be output to a recording medium. Accordingly, the input operation to be performed by the user who performs the copying operation is very simple, and it is not necessary to provide a special user interface.

  According to the present invention, there is no need to provide a large and complicated user interface, and even when copying only a specified range of data, a data output device capable of performing a copying operation with a simple operation, and A data output method can be provided.

  A data output apparatus and a data output method according to an embodiment of the present invention will be described below with reference to FIGS.

  FIG. 1 is a block diagram showing a configuration of a monitoring device including a data output device according to an embodiment of the present invention.

  In the present embodiment, it is assumed that a monitoring device as an example of a data output device is applied to a monitoring system that monitors video using the monitoring camera 50. A plurality of monitoring cameras 50 (1), 50 (2), and 50 (3) are connected in parallel to the input of the monitoring apparatus 100 shown in FIG. The monitoring device 100 periodically captures images taken by each monitoring camera 50 and stores them as image data.

  The monitoring device 100 is often installed at a specific location, for example, in a financial institution company. Therefore, if a person in charge such as a specialized management company that manages the monitoring apparatus 100 determines that the image data stored in the monitoring apparatus 100 may be useful when some trouble occurs, the monitoring apparatus It is necessary to take a part or all of the image data stored in the monitoring apparatus 100, copy it, and take it back for analysis.

  In order to copy the image data and take it home, the person in charge uses an external storage medium 200 that is detachable from the monitoring apparatus 100. As the hardware of the external storage medium 200, various media can be used as long as the data can be read and written and the stored data can be held for a long time. For example, an SD card incorporating a semiconductor memory, a memory stick, a writable DVD disk, or the like can be used as hardware of the external storage medium 200.

  However, when image data is to be copied in the same manner as a general apparatus, a user interface that is easy to understand for the operator, that is, a display and a keyboard, is provided to specify the range of data to be copied. Therefore, it is inevitable that the monitoring apparatus 100 becomes large and requires a large installation space. There is also a possibility that the operator will make a mistake in the operation.

  Therefore, in the present embodiment, a copy list 210 describing a copy target range and the like is written in advance on the external storage medium 200 to be used. In the actual copying operation, the monitoring device 100 can proceed the copying operation almost automatically by referring to the contents of the copy list 210, so that it is not necessary to provide a special user interface. Details will be described later.

  As shown in FIG. 1, the monitoring apparatus 100 includes a monitoring control unit 110, an image database 120, a management table 130, a time management unit 140, an output control unit 150, a copy button 160, and a medium connection interface 170. And a copy status display unit 180. The monitoring control unit 110 operates as an example of a designated information detection unit, a data reading unit, a data output unit, and a security information holding unit.

  A plurality of monitoring cameras 50 (1), 50 (2), and 50 (3) are connected in parallel to the input of the monitoring control unit 110. The monitoring control unit 110 controls each monitoring camera 50 and repeats shooting at a constant cycle, and outputs and stores image data obtained by shooting to the image database 120. When the image data is stored in the image database 120, management information including the camera number that identifies each surveillance camera 50 that captured each image data, the date and time when the image was captured, and the storage area or address to be stored is managed. It is written and managed in the table 130.

  The period at which the monitoring control unit 110 captures image data and writes it in the image database 120 may be set to a period of 1 second per image, for example. The time management unit 140 manages current date and time information in the same manner as a general clock. Therefore, the monitoring control unit 110 can grasp the shooting date and time of each image data and the shooting cycle by using the information output from the time management unit 140. When various sensors are mounted on each monitoring camera 50, control is performed so as to automatically switch the shooting interval, zoom, posture, etc. of each monitoring camera 50 according to the detection state of the sensor. Also good. In this case, it is desirable to register information related to the detection state (alarm) of the sensor, zoom, posture, and the like in the management table 130 in association with the corresponding image data.

  The medium connection interface 170 is an adapter corresponding to the hardware of the external storage medium 200 to be used, and is hardware that realizes reading and writing of data with respect to the external storage medium 200 under the control of the output control unit 150.

  The output control unit 150 is hardware mainly composed of, for example, a microprocessor, and implements a copy control operation as shown in FIG. 2 according to an algorithm of a program incorporated in advance. That is, image data stored in the image database 120 is output to the external storage medium 200 and copied. Further, the output control unit 150 can provide security information indicating a specific user or a specific device to which an access authority is given in advance as a data output destination, for example, a worker who performs a copy operation in advance or a specific external storage medium 200 itself. The password assigned to is maintained and managed internally. The copy button 160 is provided for an operator to give a copy operation start instruction.

  The copy status display unit 180 is hardware that expresses the status of the output control unit 150, copying in progress, copy failure, and incorrect description in the copy list by light emission, voice, character display, and the like. The state of light emission is distinguished by a combination of color and blinking cycle. The voice informs the operator of the completion of copying by the sound type.

  A specific example of the contents of the copy list 210 written in advance on the external storage medium 200 will be described with reference to FIG. FIG. 3 is a schematic diagram showing a specific example of a copy list handled by the monitoring apparatus shown in FIG. As shown in FIG. 3, the copy list 210 is configured as a text information file.

  In the example illustrated in FIG. 3, the character string “P12345” is described in the first line of the copy list 210. “P” at the beginning of a line indicates that this line includes a password (or ID for identification). That is, “12345” is the password in the copy list 210.

  In addition, a character string “L 1 2005/08/20 11:30:30 005” is described in the second line of the copy list 210. “L” at the beginning of the line indicates that information specifying the range to be copied in the time range is included. “1”, which is separated by a space and follows “L”, indicates that an image of the monitoring camera 50 (1) connected to the first channel is selected. Furthermore, “2005/08/20 11:30: 00 005” separated by a space and following “1” was shot within the range of 5 minutes from 11:30 pm on August 20, 2005. This means selecting image data.

  Similarly, the character string “L 2 2005/08/20 11: 30: 0 005 A” on the third line of the copy list 210 is 2005 of the surveillance camera 50 (2) connected to the second channel. This means that the image data is selected within the range of 5 minutes from 11:30 on 00 August 20th. Furthermore, “A” at the end of the third line means that only image data shot under an alarm condition is selected as a selection target with a parameter for narrowing down the target by the recording condition.

  A character string “N 1 2005/08/20 25:30:30 005” is described in the fourth line of the copy list 210. “N” at the beginning of the line indicates that information specifying the copy target range by the number of images is included. “1”, which is separated by a space and follows “N”, indicates that an image of the monitoring camera 50 connected to the first channel is selected. Furthermore, “2005/08/20 25:30: 00 005”, which is separated by a space and followed by “1”, is five pieces of image data taken from 25:30:30 on August 20, 2005. Means to choose.

  Further, “?” In the character string “L? 2005/09/01 11:40:00 010” on the fifth line of the copy list indicates that the cameras connected to all the channels are to be copied. In this case, it means that image data for 10 minutes is selected from 11:40:00 on September 1, 2005 for all connected cameras.

  Similarly, “????” in the character string “L 1 2005/09/02 12:00:00 ???” on the 11th line of the copy list is not limited to the end time and can be copied to the external storage medium 200. Indicates that the range is to be copied. In this case, it means selecting as much image data as can be copied to the external storage medium 200 from 12:00:00 on September 2, 2005 in the video of the monitoring camera 50 connected to the first channel. Yes.

  In addition, since the copy list has a simple program function, it also has a function of saving the trouble of describing the list in large quantities. The 6th to 10th lines of the copy list are program parts. “M10S” on the sixth line indicates the beginning of the program, and “M10E” on the tenth line indicates the end of the program started on the sixth line “M10S”.

  “X = 0” in the sixth line “M10S (x = 0)” represents an algebra used only in this program, and the initial value of x is set to 0. The seventh line “x = x + 1” indicates that a value obtained by adding 1 to the value of the algebra x is used as the new value of x. In the eighth line “L 1 2005/08 / x 12:00: 00 001”, the copy list is executed with the value obtained by substituting the previous algebra for x. The ninth line “IF (x <3, M10S, M10E)” represents jumping to the M10S line when x is smaller than 3, and jumping to the M10E line otherwise. Result By executing the 6th to 10th lines, among the surveillance cameras 50 (1) connected to the first channel, 12:00 every day from August 1, 2005 to August 3, 2005 This means that the image data is selected within a range from 00 minutes 00 seconds to 1 minute.

  Next, the contents of the copy control operation shown in FIG. 2 will be described in order. FIG. 2 is a flowchart showing a copy control operation of the monitoring apparatus shown in FIG.

  In step S <b> 11, the output control unit 150 confirms the state of the copy button 160. When the copy button 160 is pressed by an operator or the like, the process proceeds from step S11 to step S12.

  In step S <b> 12, the output control unit 150 confirms whether or not the predetermined external storage medium 200 is attached to the medium connection interface 170. When a predetermined external storage medium 200 is connected to the medium connection interface 170 in a state where data can be read and written, the process proceeds from step S12 to step S13.

  In step S <b> 13, the output control unit 150 searches the information in the copy list 210 on the external storage medium 200 connected to the medium connection interface 170 to check whether the copy list 210 exists. If the copy list 210 exists, the process proceeds from step S13 to step S14.

  In step S14, the output control unit 150 searches for and reads information related to the description of the password in the copy list 210 on the external storage medium 200, and verifies whether or not it matches the password held by the output control unit 150 itself. . If a legitimate password is found in the copy list 210, the process proceeds from step S14 to step S15.

  In step S15, the output control unit 150 refers to the contents of the range designation for each line on the copy list 210. When the range designation is found, the process proceeds from step S15 to step S16, and when there is no range designation, the process proceeds from step S15 to step S18.

  In step S <b> 16, the output control unit 150 reads image data within the range specified in the copy list 210 from the image database 120 while referring to the management table 130, and outputs it to the external storage medium 200 via the medium connection interface 170. To do. As a result, copy data 220 is created on the external storage medium 200.

  For example, when the copy list 210 having the contents as shown in FIG. 3 exists on the external storage medium 200, “L 1 2005/08/20 11:30:30 005”, which is the contents of the second line of the copy list 210. ”Of the image of the surveillance camera 50 (1) connected to the first channel was captured within 5 minutes from 11:30 pm on August 20, 2005 The image data is selectively extracted from the image database 120, and the image data at the new time is extracted in order from the image data with the oldest shooting time, and is sequentially output to the external storage medium 200.

  In step S17, if the character string specifying the operation in step S16 is the last line on the copy list 210, the process proceeds to step S22 after step S17, and the remaining character string exists in the next line. In this case, the process returns from step S17 to step S16 and the same processing is repeated.

  In step S22, the reproduction program is copied to the external storage medium 200 in order to reproduce the image to be copied.

  In step S18, since the range of the image to be copied is not designated, processing different from that in step S16 is performed. That is, the image data stored in the image database 120 are arranged in order from the image data with the latest shooting time to the image data with the oldest shooting time, and are output to the external storage medium 200 in order from the new image data.

  However, since the storage capacity of the external storage medium 200 is often relatively small, all image data on the image database 120 cannot be copied. Therefore, in step S19, monitoring is performed until the size of the remaining storage area that can be stored in the external storage medium 200 becomes equal to or smaller than a predetermined value, and the operation in step S18 is repeated. When the size of the remaining storage area that can be stored in the external storage medium 200 becomes equal to or smaller than the predetermined size, the process proceeds from step S19 to the next step S20.

  In step S <b> 20, the output control unit 150 takes out a dedicated image reproduction program prepared in advance in its own storage device and outputs it to the external storage medium 200. This image playback program has a playback function that can reverse the order of playback images when a number of still images are played back in order. A general image reproduction program operates to reproduce images in order from the smallest number assigned when the image is stored to the larger number. However, when step S18 is executed, the images are copied in order from the newest image to the oldest image, so that the numbers assigned to the images are opposite to the normal numbers. Therefore, when the copy image processed in step S18 is reproduced by a general image reproduction program, the time axis is reversed and reproduced. In order to correct and reproduce this in the normal order, a special reverse reproduction program is copied to the external storage medium 200 in step S20.

  In step S <b> 21, the output control unit 150 creates log information regarding the current copy operation, and outputs the log information to the external storage medium 200. As a result, log information 230 is created on the external storage medium 200.

  In step S23, it is confirmed whether or not a result of NG has occurred during the copy execution. If it has occurred, the process proceeds to step S24. If it has not occurred, the process proceeds to step S25.

  In step S24, the copy status display unit 180 informs the operator of the status of the occurrence of copy NG on the occurrence of NG and the end of copy.

  In step S 25, the copy status display unit 180 informs the operator of the status of occurrence of copy NG in the absence of occurrence of NG and the end of copying.

  In step S26, when the operator removes the external storage medium, all the operations are completed and the initial state is restored.

  A specific example of the log information 230 is shown in FIG. FIG. 4 is a schematic diagram showing a specific example of log information handled by the monitoring apparatus shown in FIG. The log information 230 illustrated in FIG. 4 represents a result of the copy control performed by the monitoring control unit 110 according to the copy list 210 illustrated in FIG.

  Referring to FIG. 4, a character string “OK P 12345” is described in the first line of the log information 230. The first “OK” on the first line indicates that the subsequent password designation “P 12345”, that is, the description on the first line in the copy list 210 is correct.

  Further, the second line of the log information 230 shown in FIG. 4 describes a character string “OK L 1 2005/08/20 11:30:30 005”. The first “OK” on the second line is a copy range designation “L 1 2005/08/20 11:30: 00 005” that follows, that is, there is no problem with the description on the second line in the copy list 210. Indicates that it was processed correctly.

  In addition, a character string “NG L 1 2005/08/20 25:30:30 005” is described in the fourth line of the log information 230 illustrated in FIG. 4. The first “NG” on the fifth line has a problem in the description of the time of the fifth line in the copy list 210, that is, the copy range designation “L 1 2005/08/20 25:30:30 005” that follows. This indicates that this line was not processed correctly.

  In addition, about a structure and operation | movement of the monitoring apparatus 100 shown in FIGS. 1-4, you may change and add a function as shown below, for example.

  (1) A buzzer that generates a warning sound or a warning display lamp may be connected to the monitoring device 100 in order to inform the operator of the operating state of the monitoring device 100. For example, when there is a problem in the description content on the copy list 210 and the output control unit 150 identifies “NG”, a warning sound is generated to notify the operator that the copy operation has failed. It is desirable to display a warning.

  (2) Instead of pressing the copy button 160, the output control unit 150 may automatically start the copy operation upon detecting that the external storage medium 200 is attached to the medium connection interface 170.

  (3) When there are a plurality of surveillance cameras 50 and the channel number for designating a specific camera is not included in the copy list 210, the number is processed as a wild card, What is necessary is just to select the image data of the surveillance camera as a copy target.

  (4) Specific specifications for the case where the output control unit 150 processes the description content of the copy list 210 may be defined as, for example, (4-1) to (4-21) shown below. .

(4-1) Lines that do not have any of P, L, or N at the beginning of the line are processed as NG (not specified).
(4-2) “P” other than the first line is processed as NG.
(4-3) One half-width space is basic between P / L / N and the next parameter (a plurality of spaces may be present).
(4-4) The password is processed only as a 5-digit number, otherwise it is processed as NG.
(4-5) If the password is 6 digits or more, or if anything is described after the 5th digit, it is processed as a password NG.

(4-6) When the copy operation is executed for the monitoring apparatus 100 in which the password setting is not valid, and there is a line P, the line P is treated as NG and the script execution is stopped.
(4-7) If a copy operation is executed without a P line for the monitoring apparatus 100 for which the password setting is valid, the script is canceled assuming that the P line is NG, and the log information is displayed. Add one line of “NG P”.
(4-8) If the password verification fails for the monitoring device 100 in which the password is valid at the line P, the script is canceled with the line P as NG, and the log information includes “NG P "Is added (no password is described).
(4-9) The year / month / day / hour / minute / second delimiter is any one of “/”, “:”, and “half-width space” (there may be multiple half-width spaces).
(4-10) The year, month, day, hour, minute, and second are basically two digits. When the number of digits is exceeded (up to 4 digits), processing is performed assuming that the numerical value of the corresponding digit is not 0, and when it is not 0, processing is performed as NG. When the digit is over (4 digits or more), it is processed as NG. When the digit is short (1 digit), it is processed as a 1-digit number. If the digit is short (does not exist), it is processed as NG.

(4-11) The time and number of sheets are basically 3 digits. Digit over and short processing is the same as for “Year / Month / Day / Time / Minute / Second”.
(4-12) The channel number is basically one digit. Digit over and short processing is the same as for “Year / Month / Day / Time / Minute / Second”.
(4-13) Only when the time is specified (the head of the line is L), the addition of “A” is allowed after the number specification.
(4-14) Before “A”, one half-width space is basic (a plurality of spaces are allowed).
(4-15) After “A”, only the line feed code is OK, and the others are processed as NG.

(4-16) Lines without “A” are processed with only a line feed code after the second and NG otherwise.
(4-17) No reading is performed from the 22nd line, and OK / NG determination is not performed. Only the contents corresponding to the 21st line of the copy list remain in the log information. When there is no “P”, reading is not performed from the 21st line.
(4-18) Only [CR (carriage return)] is accepted as a line feed code.
(4-19) The maximum number of characters in each line is 50 single-byte characters.
(4-20) Uppercase letters and lowercase letters are not distinguished, only single-byte characters are allowed, and double-byte characters are processed as NG.

(4-21) Ignore lines with only line feed codes.
(4-22) For the row with “A”, only the designated image data for which an alarm (abnormality detection state) is generated by the sensor of the corresponding monitoring camera is selected and the external storage medium is selected. Output to 200.

  According to the embodiment of the present invention, if the designation information is written in advance on the external data recording medium that is the copy destination, the data output control unit determines the range of data to be output according to the contents of the designation information. It can be automatically recognized, the corresponding data can be taken out and output to the external data recording medium. Accordingly, the input operation to be performed by the user who performs the copying operation is very simple, and it is not necessary to provide a special user interface.

  For example, when handling image data from surveillance cameras, the location (or person in charge) that determines the range of data to be copied is often different from the location (or worker) where the data is actually copied. By pre-writing the range of data to be copied in the external data recording medium as specified information, the on-site copying operation becomes extremely simple.

  In the above description, the monitoring device has been described as an example of the data output device. However, even when various data stored in devices other than the monitoring device are copied in a similar environment, The same effect can be expected by applying the data output device of this embodiment.

  The data communication apparatus and data communication method of the present invention eliminates the need for providing a large and complicated user interface, and can perform a copying operation with a simple operation even when copying only a specified range of data. It has a possible effect and is useful for outputting image data of a monitoring system.

The block diagram which shows the structure of the monitoring apparatus containing the data output device which concerns on embodiment of this invention 1 is a flowchart showing a copy control operation of the monitoring apparatus shown in FIG. Schematic diagram showing a specific example of a copy list handled by the monitoring apparatus shown in FIG. Schematic diagram showing a specific example of log information handled by the monitoring apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 50 Surveillance camera 100 Monitoring apparatus 110 Monitoring control part 120 Image database 130 Management table 140 Time management part 150 Output control part 160 Copy button 170 Medium connection interface 180 Copy status display part 200 External storage medium 210 Copy list 220 Copy data 230 Log information

Claims (7)

A data output device that outputs data stored in advance in a predetermined data storage unit to an external data recording medium capable of reading and writing data,
A designation information detection unit for detecting whether or not designation information representing at least a range of data to be output exists in the external data recording medium;
A data reading unit that reads data within a corresponding range from the data stored in the data storage unit when the designation information exists;
A data output device comprising: a data output unit that outputs the read data to the external data recording medium. The data output device according to claim 1, wherein
The data output device, wherein the data reading unit specifies a range of data to be output by searching for a time at which data to be output is generated or a time at which data is accumulated according to information included in the designation information. The data output device according to claim 2, wherein
When the designation information is not detected by the designation information detection unit, the data reading unit sequentially selects the data in the arrangement order from the latest data to the old data among the data accumulated in the data accumulation unit. Data output device for reading out. The data output device according to any one of claims 1 to 3,
A security information holding unit for holding security information representing a specific user or a specific device to which an access right is given in advance as a data output destination;
The specified information detection unit refers to the security information holding unit, checks whether or not information matching the security information exists in the external data recording medium, and outputs a data output only when they match The data output device which permits data reading by. A data output device according to any one of claims 1 to 4,
The data output device, wherein the data output unit outputs log information indicating whether or not at least the corresponding data output has been successful to the external data recording medium for each specified item included in the specified information. A data output method for outputting data stored in advance in a predetermined data storage unit to an external data recording medium capable of reading and writing data,
Detecting whether or not there is at least designation information indicating a range of data to be output in the external data recording medium;
When the specified information is present, reading data within a corresponding range from the data stored in the data storage unit; and
Outputting the read data to the external data recording medium.   The data output program which performs each step of Claim 6.

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