JP2018163479A - Data recording system, recording control device, and program - Google Patents

Abstract

A data recording system, a recording control apparatus, and a program capable of maintaining a total recording time of data are provided.
A recording control device connected to a distribution system for transmitting data at a specified data amount per unit time and a recording device for recording data transmitted by the distribution system includes: The total recordable time is acquired, and based on the acquired total recordable time information, a process for controlling the data amount per unit time transmitted by the distribution system is executed.
[Selection] Figure 1

Description

  The present invention relates to a data recording system, a recording control device, and a program.

  As an example of an apparatus for recording data, Patent Document 1 discloses that a program is recorded in a cache area of a cache hard disk drive immediately after recording is started, and a program is in a standby state while the program is recorded in the cache area. Disclosed is a technology for switching to an active state by energizing one of the hard disk drives.

  In the technique of Patent Document 1, when a hard disk drive is activated and becomes active, data is transferred from the cache area of the cache hard disk drive to the storage area of the hard disk drive that has been activated. When the transfer is completed, the energization of the cache hard disk drive is stopped, and the cache hard disk drive is changed from the active state to the standby state.

JP 2009-110104 A

  With the technique disclosed in Patent Document 1, it is possible to record continuously received data without missing, but it has not been considered to maintain the total data recording time for the hard disk provided in the apparatus.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a data recording system, a recording control apparatus, and a program capable of maintaining the total recording time of data.

  The present invention that solves the problems of the above-described conventional example is a data recording system, a distribution system for transmitting data in a data amount designated per unit time, and a recording apparatus for recording the data transmitted by the distribution system And a recording control device connected to the distribution system and the recording device, wherein the recording control device acquires information on a total recordable time of data of the recording device, and information on the acquired total recordable time Means for executing a process for controlling the amount of data per unit time transmitted by the distribution system when a predetermined condition is satisfied. Thereby, the total recording time of data is maintained.

  Another aspect of the present invention that solves the problems of the conventional example described above is a data recording apparatus connected to a distribution system that transmits data in a specified amount of data per unit time. Recording means for recording data, means for acquiring information on the total recordable time of data in the recording means, and the distribution system sends out when the acquired information on the total recordable time satisfies a predetermined condition Means for executing a process for controlling the amount of data per unit time. Since it did in this way, the total recording time of data is maintained.

  Another aspect of the present invention is a recording control apparatus, which is connected to a distribution system that transmits data in a specified amount of data per unit time and a recording apparatus that records the data transmitted by the distribution system. Means for acquiring the total recordable time of the data of the recording device and means for executing a process for controlling the data amount per unit time transmitted by the distribution system based on the acquired information of the total recordable time And so on. According to this recording control apparatus, the total recording time of data is maintained.

  Here, the distribution system includes a camera, and sends out image data captured by the camera for each amount of data specified per unit time, and the designation unit sends the data to the distribution system per unit time. A process for controlling the amount of data to be transmitted may be executed. Thereby, the total recording time of the image data imaged with the camera is maintained.

  Further, here, the designating means includes (1) setting of an image data encoding method, (2) setting of an imaging period, and (3) the distribution system including a plurality of cameras. In this case, a process for controlling the amount of data to be transmitted per unit time by performing a setting including at least one of setting of a camera that captures a part of the plurality of images and (4) setting of the number of frames. May be executed. Thereby, the total recording time of the image data imaged with the camera is maintained by control according to a standard specification.

  Further, the distribution system includes a plurality of data generation sources, the recording control apparatus further includes means for setting a priority order for each of the data generation sources, and the designation means is configured to set the priority order set. With reference to the information, the process of controlling the data amount per unit time transmitted by the distribution system may be executed using the information of the priority order. In this way, the total data recording time can be maintained while performing control according to the priority order of each data generation source.

  Further, the information processing apparatus further comprises means for accepting information on a data amount designation method per unit time from the outside, wherein the designation means controls the data amount per unit time transmitted by the distribution system according to the accepted designation method. May be executed.

  Furthermore, a program according to another aspect of the present invention includes a data recording device connected to a distribution system that transmits data in a data amount designated per unit time, and a recording unit that records the data transmitted by the distribution system. A means for acquiring information on the total recordable time of the data of the recording means, and a data amount per unit time transmitted by the distribution system when the acquired information on the total recordable time satisfies a predetermined condition. It is supposed to function as a means for executing a process to be controlled.

  According to the present invention, the total recording time of data can be maintained.

It is a block diagram showing the example of a structure of the data recording system which concerns on embodiment of this invention. It is a functional block diagram showing the example of the control part of the recording control apparatus which concerns on embodiment of this invention. It is explanatory drawing showing the example of the content of the data table set to the recording control apparatus which concerns on embodiment of this invention. It is a flowchart showing the operation example of the data recording system which concerns on embodiment of this invention. It is explanatory drawing showing the example of the information of the priority set to the recording control apparatus which concerns on embodiment of this invention.

  Embodiments of the present invention will be described with reference to the drawings. A data recording system 1 according to an embodiment of the present invention includes a distribution system 10, a recording device 11, and a recording control device 12, as illustrated in FIG. The distribution system 10 and the recording control device 12 are connected to each other via communication means such as a network.

  The distribution system 10 includes a plurality of data generation sources 101 and a data distribution control device 102. Here, the data generation source 101 sends the generated data to the data distribution control device 102. The data generation source 101 is, for example, a camera, which continuously captures images to obtain data and continuously outputs the data to the data distribution control device 102. In the present embodiment, the data generation source 101 adjusts the content of data distributed per unit time to change the data amount per unit time. A detailed operation example of the data generation source 101 will be described later.

  The data distribution control device 102 distributes the data received from each data generation source 101 to the recording control device 12 via communication means such as a network. In the example of the present embodiment, the data distribution control device 102 outputs an instruction input from the recording control device 12 via a communication unit such as a network to the data generation source 101.

  The recording apparatus 11 is a disk system including, for example, a plurality of hard disk drives (HDD), and is connected to the recording control apparatus 12. The recording device 11 stores data input from the recording control device 12 in the HDD. In the example of the present embodiment, the recording apparatus 11 uses any one (for example, j-th) HDD among the plural (N) HDDs as a recording target drive, and performs recording control on the recording target drive. Data input from the device 12 is stored.

  Further, when the storage capacity (free capacity) of the recording target drive falls below a predetermined threshold, the recording apparatus 11 sets the next HDD (j + 1, j = 1 if j> N). As the recording target drive, data input from the recording control device 12 is stored in the recording target drive. That is, in this example, when N = 4, data is recorded as the first HDD, the second HDD,..., The fourth HDD, and the storage capacity (empty) of the fourth (Nth) HDD. When (capacity) falls below a predetermined threshold value, the process returns to the first HDD and data recording continues. Accordingly, in this case, data can be recorded by the total sum T of the maximum storage capacities of the N HDDs. Therefore, when the data amount per unit time (for example, 1 hour) is d, the recording apparatus 11 can record data for T / d time. This T / d time is called the total recordable time of the recording apparatus 11. The recording device 11 reads and outputs data stored in the HDD according to an instruction input from a personal computer (not shown).

  As shown in FIG. 1, the recording control device 12 includes a control unit 21, a storage unit 22, a communication unit 23, and an interface unit 24. Here, the control unit 21 is a program control device such as a CPU, and operates according to a program stored in the storage unit 22. In the present embodiment, the control unit 21 acquires information on the total recordable time of the recording device 11, and when the acquired information on the total recordable time satisfies a predetermined condition, the control unit 21 notifies the distribution system 10. Thus, the data amount per unit time transmitted by the distribution system 10 is instructed. The operation of the control unit 21 will be described in detail later.

  The storage unit 22 includes a disk device and a memory device, and holds a program executed by the control unit 21. This program may be stored in a computer-readable non-transitory recording medium such as a DVD-ROM, or provided via a network and stored in the storage unit 22. In the present embodiment, the storage unit 22 also operates as a work memory for the control unit 21.

  The communication unit 23 is a network interface or the like, and outputs data distributed by the distribution system 10 to the control unit 21. Further, the communication unit 23 exchanges information related to the designation of the data amount per unit time and data to be recorded with the distribution system 10.

  The interface unit 24 is an interface such as a USB and is connected to the recording apparatus 11. The interface unit 24 outputs an instruction output from the control unit 21 and data to be recorded to the recording device 11.

[Data generation source operation]
Here, an operation example of the data generation source 101 will be described. In the example of this embodiment, the data generation source 101 is a camera and obtains image data by photographing. On the other hand, the data generation source 101 accepts an input of a setting instruction for the encoding method of image data and a setting instruction for the number of frames from the recording control apparatus 12 which is a distribution destination via the data distribution control apparatus 102. The data generation source 101 sets the encoding method and the number of frames of image data to be distributed in accordance with the input setting instruction. The data generation source 101 captures image data with the set number of frames, and encodes the image data with the set encoding method and distributes the image data to the data distribution control apparatus 102. An example of a camera as the data generation source 101 that performs such control is widely known as an Onvif (registered trademark) compatible device or the like, and a detailed description thereof will be omitted here.

[Operation of recording controller]
Next, an operation example of the control unit 21 of the recording control device 12 will be described. In the present embodiment, as shown in FIG. 2, the control unit 21 functionally includes a receiving unit 31, a recording processing unit 32, a total recordable time information acquisition unit 33, and a designation processing unit 34. It is comprised including.

  The receiving unit 31 receives data distributed by the data distribution control device 102 of the distribution system 10 and outputs the data to the recording processing unit 32. In addition, the receiving unit 31 calculates a data amount (may be an average value) per unit time of the received data. The recording processing unit 32 causes the recording device 11 to record the data received by the receiving unit 31.

  The total recordable time information acquisition unit 33 divides the total storage capacity (maximum storage capacity) of the recording device 11 by the data amount per unit time calculated by the receiving unit 31 and acquires information on the total recordable time. For example, when the maximum storage capacity of the storage device 11 is B bytes and the receiving unit 31 calculates that the data amount per unit time is A byte data amount per hour, this total recordable time information The acquisition unit 33 calculates that recording is possible for C = B / A time. Since the amount of data received per unit time calculated by the receiving unit 31 changes depending on the designation of the designation processing unit 34 described later, this calculation is repeatedly performed at predetermined timings.

  The designation processing unit 34, when the recordable time calculated by the total recordable time information acquisition unit 33 is less than a predetermined target total recording time, the amount of data per unit time sent by the distribution system Is specified. Specifically, the designation processing unit 34 can record only the predetermined total recording time when the recordable time calculated by the total recordable time information acquiring unit 33 is less than the predetermined total recording time. A data amount A ′ per unit time is obtained. The value A ′ obtained here is calculated by A ′ = B / D, where D is the total recording time as the target value.

  The designation processing unit 34 obtains an encoding method and the number of frames that are equal to or less than the data amount A ′ per unit time. Specifically, in the example of the present embodiment, when recording data of an image taken by a camera, estimation per unit time is performed for each combination Mi (i = 1, 2,...) Of the encoding method and the number of frames. A data table in which the data amount Ai is associated is stored in the storage unit 22 (FIG. 3). In this data table, for example, for the combination M1 of the encoding scheme CD1 and the number of frames of 24 frames / second, the data amount per unit time is A1, and for the combination M2 of the encoding scheme CD1 and the number of frames of 18 frames / second per unit time .., And the combination Mk of the encoding scheme CD2 and the number of frames of 24 frames / second is determined such that the data amount per unit time is Ak. The amount of data per unit time associated with each combination is experimentally determined as an average value.

  The designation processing unit 34 corresponds to the data amount per unit time that is less than the data amount A ′ per unit time that can be recorded for the total recording time that is a predetermined target value and that is closest to this value A ′. The combination of the encoding method and the number of frames is found by referring to the data table, the data is encoded by the encoding method, and the number of frames to be photographed is set to the number of frames related to the found combination. The distribution control apparatus 102 is instructed.

  This instruction is transmitted by the data distribution control device 102 to each camera that is the data generation source 101, and the image data encoded by the encoding method specified by the camera is captured and transmitted by the specified number of frames. To come.

  Further, according to this operation, when the maximum storage capacity decreases, for example, when the HDD in the recording device 11 fails, not only the recording control device 12 controls to reduce the data amount per unit time but also the recording. When the maximum storage capacity of the data is increased by replacing one failed HDD among the HDDs in the apparatus 11 and the total recordable time is increased, the recording control apparatus 12 notifies the distribution system 10. Thus, control is performed so as to increase the amount of data per unit time. This is because the recording control device 12 performs an operation for obtaining an encoding method and the number of frames that are equal to or less than the data amount A ′ per unit time and closest to the data amount A ′.

[basic action]
The data recording system 1 of the present embodiment basically has the above configuration and operates as follows. As illustrated in FIG. 4, the distribution system 10 captures image data captured by a camera that is a data generation source with a predetermined number of frames per predetermined time (for example, 1 second) and encoded by a predetermined encoding method. Distribute (S1).

  The recording control device 12 accepts the distributed data and records the data on the recording device 11 (S2). Further, the recording control device 12 acquires information on the total recordable time of the recording device 11 (S3). Then, the recording control device 12 checks whether or not the information on the total recordable time acquired in the process S3 satisfies a predetermined condition (S4). Specifically, it is checked here whether or not the total recordable time represented by the information acquired in step S3 is less than the total recording time that is the target value. As an example, if one of the HDDs in the recording device 11 fails and the maximum data storage capacity decreases, the total recordable time acquired in step S3 decreases. Therefore, when it is determined in process S4 that the total recordable time is less than the total recording time that is the target value (S4: Yes), the recording control device 12 determines the data amount per unit time for the distribution system 10. A process to be controlled is executed (S5).

  In the process S4, when the information of the total recordable time acquired in the process S3 does not satisfy the predetermined condition (S4: No), that is, in this example, the total record represented by the information acquired in the process S3. If the possible time does not fall below the total recording time, which is the target value, the next data delivery is waited without executing the process for controlling the data amount per unit time.

  For example, the recording control device 12 designates the encoding method and the number of frames to the distribution system 10 as a process for controlling the data amount per unit time in the process S5. Upon receiving this designation, the distribution system 10 then causes the camera that is the data generation source to shoot at the designated number of frames per predetermined time (for example, 1 second), and the designated encoding method. The image data encoded by the method is distributed.

[Control by data source]
In the description so far, the recording control device 12 has been set as an example in which setting common to a plurality of data generation sources 101 included in the distribution system 10 is performed when setting the data amount per unit time transmitted by the distribution system 10. However, the present embodiment is not limited to this. For example, the recording control device 12 includes information for specifying each data generation source 101 (for example, a network address) and information for controlling a data amount per unit time (for example, designation of an encoding method and the number of frames) as data. The data may be sent to the distribution control apparatus 102, and the encoding method and the number of frames may be designated for each data generation source 101. According to this example, control can be made different between a camera that captures a place where recording is desired with a relatively high image quality and a camera that captures a place where recording is possible with a relatively low image quality.

  In this example of the present embodiment, estimation per unit time for each combination Mi (i = 1, 2,...) Of the encoding method and the number of frames in each data generation source 101j (j = 1, 2,...). A data table in which the data amount Ai is associated is stored in the storage unit 22. Then, the recording control apparatus 12 temporarily determines a combination Mij (i = 1, 2,..., J = 1, 2,...) Of the encoding method and the number of frames for each data generation source 101j, and a unit corresponding to each. The estimated data amount Aij per time is acquired with reference to the data table. The recording control device 12 keeps the data generation source 101j until the sum Σ_j (Aij) for the data generation source 101j falls below the data amount A ′ per unit time that can be recorded for a total recording time that is a predetermined target value. Each time, the combination Mij of the encoding method and the number of frames is updated. When the sum Σ_j (Aij) falls below the data amount A ′ per unit time that can be recorded for a total recording time that is a predetermined target value, the recording control device 12 sends a code to each data generation source 101j. The information specifying the combination Mij of the conversion method and the number of frames is transmitted.

[Priority]
When control is performed for each individual data generation source 101 as described above, a priority order may be set for each data generation source 101. As illustrated in FIG. 5, this priority order is recorded by associating information (Q) indicating the priority order with information (P) for specifying the data generation source 101, specifically, recording. What is necessary is just to enable it to set arbitrarily by the user of the control apparatus 12. FIG.

  The information (Q) indicating the priority order is, for example, numerical information, and does not necessarily have to be different from each other for all the data generation sources 101, and there may be a plurality of data generation sources 101 having the same priority order.

  In an example of the present embodiment, the priority (1) is set for a camera (or a plurality of cameras) that are the data generation source 101 that captures a place to be recorded with a relatively high image quality. The priority is set to “2” for the camera (which may be a plurality) that is the data generation source 101 that captures an arbitrary place.

  In this case, the recording control device 12 temporarily determines a combination Mij (i = 1, 2,..., J = 1, 2,...) Of the encoding method and the number of frames for each data generation source 101j, and corresponds to each. The estimated data amount Aij per unit time is acquired with reference to the data table. The recording control device 12 refers to the priority order information, and the data amount A per unit time that can be recorded for the total recording time for which the sum Σ_j (Aij) for the data generation source 101j is a predetermined target value. Until the value of ′, for the data generation source 101j having the priority “2” among the data generation sources 101j, the combination Mij of the encoding method and the number of frames is changed to a lower image quality for the encoding method. The number of frames is repeatedly updated to a smaller value. When the sum Σ_j (Aij) falls below the data amount A ′ per unit time that can be recorded for a total recording time that is a predetermined target value, the recording control device 12 Information specifying the combination Mij of the encoding method and the number of frames is transmitted.

  As described above, according to the example of processing for controlling the data amount per unit time transmitted by the distribution system 10 using the information on the priority order that has been referred to, the data generation source 101 that captures a place to be recorded with a relatively high image quality. For a camera that is a data generation source 101 that transmits data captured with the original encoding method and the number of frames and captures a place where recording may be performed with a relatively low image quality, It is possible to perform control such as transmitting data captured with a low-quality encoding method and with a lower number of frames.

[Adjustment of data volume by other methods]
Further, when the data generation source 101 is a camera compatible with Onvif (registered trademark), in the above description, the recording control apparatus 12 controls the amount of data per unit time in order to encode the image data. Alternatively, the example of designating the number of frames has been described, but the present embodiment is not limited to this, and the recording control device 12
(1) Setting of encoding method of image data obtained by the camera
(2) Setting of the period (date / time, day of the week, time zone, etc.) for imaging,
(3) Setting of a camera that captures a part of a plurality of cameras,
(4) Setting the number of frames,
(5) At least one (or combination thereof) of bit rate (data transfer rate) settings may be instructed to control the data amount per unit time. Here, (5) the setting of the bit rate corresponds to the setting of the amount of data per unit time generated in the data generation source 101. When the data generation source 101 is a camera, the image quality (number of pixels of image data, etc.) It corresponds to.

  Furthermore, information (setting) designated for the data generation source 101 in order for the recording control device 12 to control the data amount per unit time may be determined according to the type of the data generation source 101 or the like. For example, when the data generation source 101 is not a camera but a temperature sensor, a humidity sensor, an atmospheric pressure sensor, a light (illuminance) sensor, a magnetic sensor, a gas sensor, a pH sensor, a radiation sensor, and other sensors, for example, measurement is performed according to each. Frequency, start / stop of measurement, data format (compression method, etc.), setting to output only the previous difference, setting to output the difference from the predetermined reference value, abnormal value (if numerical range is set beforehand) It is sufficient to specify settings for transmitting only (good).

  Further, the data generation source 101 may be a device that outputs an operation state of a PC or the like as a log, or may be a storage device.

  As described above, there are various types of information that the recording control device 12 designates to the data generation source 101 in order to control the data amount per unit time. Information on how to specify the data amount per unit time, such as what information is specified for the data generation source 101 in order to control the data amount of the data (for example, not shown connected to the recording control device 12) You may make it accept from a terminal etc.). The recording control device 12 controls the data amount per unit time by the designation method represented by the received information. Specifically, when the recording control apparatus 12 accepts information specifying the type of information to be specified for the data generation source 101 and controls the data amount per unit time, the recording control device 12 converts the type of information into the data generation source 101. Specify for.

[Consideration of communication speed]
The recording control device 12 may determine an instruction for the data distribution control device 102 in consideration of the communication speed with the data distribution control device 102. Specifically, the recording control apparatus 12 acquires information on the communication speed with the data distribution control apparatus 102 at predetermined timings (for example, periodically). This communication speed information can be acquired by measuring, for example, data throughput. Alternatively, the recording control device 12 acquires information on the substantial (or theoretical) maximum speed in the communication means with the data distribution control device 102 as information on the communication speed with the data distribution control device 102. May be.

  The recording control device 12 acquires the data amount A ′ per unit time that can be recorded only for the predetermined total recording time when the total recordable time obtained by the calculation is less than the predetermined total recording time. The data amount A ″ that can be transmitted per unit time based on the communication speed information is obtained. Then, the recording control device 12 has a data amount per unit time that is smaller than A ′ or A ″, which is smaller than the data amount. Such an encoding method and the number of frames are obtained.

  Specifically, the recording control device 12 records the data amount A ′ per unit time that can be recorded for a total recording time that is a predetermined target value, or data that can be transmitted per unit time limited by the communication speed. Data per unit time that is less than the smaller value α of the quantity A ″ (A ′ if A ′ ≦ A ″, A ″ if A ′> A ″) and closest to this value α A combination of the encoding method and the number of frames corresponding to the quantity is found with reference to the data table illustrated in FIG. Then, the recording control apparatus 12 performs an encoding with the found encoding method, and instructs the data distribution control apparatus 102 to set the number of frames to be taken as the number of frames related to the found combination. That's fine.

[Consideration of data generation capability]
Further, the recording control device 12 may determine an instruction for the data distribution control device 102 according to the function of the data generation source 101. Specifically, in this example, information regarding the function of each data generation source 101 connected to the data distribution control apparatus 102 is set in the data distribution control apparatus 102. Here, the function of the data generation source 101 is information such as the maximum angle of view (maximum bit rate) and the maximum number of frames when the data generation source 101 is a camera, for example.

  In this case, the recording control device 12 acquires information on the function of the data generation source 101 connected to the data distribution control device 102 from the data distribution control device 102, and the total recording time which is a predetermined target value. This is a combination with the encoding method, the number of frames, the bit rate, etc., corresponding to the data amount per unit time that is less than the recordable data amount A ′ and is closest to this value A ′. The number of frames and the bit rate included in the combination are lower than the maximum number of frames and the maximum bit rate specified by the information related to the function of the data generation source 101 (for encoding information, the code that the data generation source 101 can handle) (Refer to the above data table), perform encoding using the encoding method, and take a picture. To the frame number and the number of frames according to the combination found the instructs the data distribution controller 102.

[Example of dynamic decision]
In the above description, the recording control device 12 determines the encoding method, the number of frames, the data rate, etc. instructed to the data distribution control device 102 with reference to the preset data table. The present embodiment is not limited to this, and the recording control apparatus 12 may dynamically determine the encoding method, the number of frames, the data rate, or the like instructed to the data distribution control apparatus 102.

  In this case, when the number of data generation sources 101 increases or decreases, the data distribution control apparatus 102 provides information related to the increased or decreased data generation sources 101 (type of data generation source 101, settable encoding method, number of frames, data Rate, etc.) may be output to the recording control device 12.

  The recording control device 12 dynamically determines the encoding method, the number of frames, the data rate, and the like instructed to the data distribution control device 102 by a predetermined method based on the information received from the data distribution control device 102. Here, the predetermined method is a combination of setting combinations M for each data generation source 101 after increase / decrease with reference to the data table illustrated in FIG. 3, for example, and a unit time based on the combination of the setting combinations M A combination in which the total sum of the estimated data amounts per unit is less than the data amount per unit time that can be recorded for a total recording time that is a predetermined target value is searched, and the data generation source 101 related to the combination found in the search The combination M for each setting may be output to the recording control device 12 and instructed to the corresponding data generation source 101.

  Even when the data generation source 101 is a sensor, the recording control device 12 sets a priority order to each sensor as described above, sets the measurement frequency individually in order of priority order, and the sensor with a high priority order. Data is transmitted at a relatively high frequency, and data having a low priority is transmitted at a relatively low frequency to control the amount of data received by the recording control device 12 per unit time. The total recordable time of the recording device 11 is set to be longer than the target total recording time.

[Handling log data]
As already described, the data generation source 101 may include one that outputs log data. In this case, the recording control apparatus 12 holds the log retention amount (how much time the log is retained for the data generation source 101 that outputs the log data, and the log type (error, warning, message). Etc.), how much time is retained for each type) and the log transmission frequency is set, and the amount of data received by the recording control device 12 per unit time (log) And the total recordable time of the recording device 11 is set to be longer than the target total recording time.

[Storage as a data source]
Further, the data generation source 101 may be a storage device. Specifically, the storage device as the data generation source 101 generates and sends data at a predetermined timing for replication or backup of stored data. In this case, the data to be generated may be data obtained by compressing data to be backed up. When compression processing is performed, the recording control apparatus 12 uses this data generation source 101 in the same way as the encoding method, the number of frames, the data rate, etc. in the example of the camera as the data generation source 101. The data distribution control apparatus 102 is instructed to set a rate, a data transmission rate, and the like.

[Example of recording control device implementation]
The recording control device 12 according to the present embodiment may be a storage device or a server device integrated with the recording device 11, for example. The recording control device 12 may be a network device such as a router or a switch that receives data from the distribution device 10 via a network.

  In this example, the router as the recording control device 12 is provided with a distribution system so that the total recordable time of the data amount per unit time transferred to the server device as the recording device 11 does not fall below the total recording time that is the target value. Instructs the content of data to be transmitted to the 10 side, and controls the data amount per unit time.

DESCRIPTION OF SYMBOLS 1 Data recording system, 10 Distribution system, 11 Recording apparatus, 12 Recording control apparatus, 21 Control part, 22 Storage part, 23 Communication part, 24 Interface part, 31 Reception part, 32 Recording processing part, 33 Acquisition of total recordable time information Part, 34 designation processing part, 101 data generation source, 102 data distribution control device.

Claims (8)

A delivery system that sends data in a specified amount of data per unit time;
A recording device for recording data sent by the distribution system;
Including a distribution system and a recording control device connected to the recording device,
The recording control device
Means for obtaining information on the total recordable time of the data of the recording device;
Means for executing a process for controlling the amount of data per unit time sent by the distribution system when the acquired total recordable time information satisfies a predetermined condition;
Including data recording system. A data recording device connected to a distribution system for transmitting data in a specified amount of data per unit time,
Recording means for recording data sent by the distribution system;
Means for obtaining information on the total recordable time of the data of the recording means;
Means for executing a process for controlling the amount of data per unit time sent by the distribution system when the acquired total recordable time information satisfies a predetermined condition;
A data recording device including: A delivery system that sends data in a specified amount of data per unit time;
Connected to a recording device for recording data sent by the distribution system,
Means for obtaining a total recordable time of the data of the recording device;
Means for executing a process for controlling the amount of data per unit time sent by the distribution system based on the acquired total recordable time information;
Including a recording control device. The recording control device according to claim 3,
The distribution system includes a camera, and sends out image data captured by the camera for each data amount designated per unit time.
The designation means is a recording control device for executing processing for controlling the amount of data transmitted per unit time for the distribution system. The recording control apparatus according to claim 4,
The designation means is for the distribution system.
(1) Setting of image data encoding method,
(2) setting the period for imaging,
(3) In the case where the distribution system includes a plurality of cameras, setting of a camera that captures some of the plurality of cameras,
(4) Setting the number of frames,
A recording control apparatus that executes processing for controlling the amount of data transmitted per unit time by performing settings including at least one of the following. The recording control device according to claim 3,
The distribution system includes a plurality of data generation sources,
The recording control apparatus further includes means for setting a priority order for each of the data generation sources,
The recording control apparatus, wherein the designation unit refers to the set priority information and uses the priority information to execute a process for controlling a data amount per unit time transmitted by the distribution system. The recording control apparatus according to any one of claims 3 to 6,
It further includes means for receiving information on how to specify the amount of data per unit time from the outside,
The recording control apparatus, wherein the specifying means executes processing for controlling a data amount per unit time transmitted by the distribution system in accordance with the accepted specifying method. A data recording device connected to a distribution system that sends data in a specified amount of data per unit time,
Recording means for recording data sent by the distribution system;
Means for obtaining information on the total recordable time of the data of the recording means;
Means for executing a process for controlling the amount of data per unit time sent by the distribution system when the acquired total recordable time information satisfies a predetermined condition;
Program to function as.

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