JP5889535B2 - Terminal device and communication system - Google Patents

Description

  The present invention relates to a technique for controlling processing of data respectively stored in a plurality of storages.

  2. Description of the Related Art Conventionally, a technique for storing data distributed from a host device via a network in a storage and providing a function using the stored data is known. In Patent Document 1, a terminal device having a karaoke function transmits song data and system program version information to the host device, and the latest version of the song data and system program whose version is not the latest is distributed to the host device. A technique for providing music functions and system functions common to other terminal devices is described.

JP-A-8-263078

By the way, when a terminal device is provided with a plurality of storages, a terminal to be connected may be determined in advance. The host device and terminal device execute processing such as data distribution and backup acquisition on the assumption that these storages are correctly connected to the terminals to be connected. On the other hand, if these storages are mistakenly connected to terminals other than the terminals to be connected, data that is not originally stored in the storage is distributed and stored in the storage, or data is updated in that state. Then, it may be difficult to move to such a state that these storages are connected to the correct terminals. In addition, storing data that is not originally stored eliminates the storage space, which also hinders the operation of the management program, which may interfere with the above-described operation.
The present invention has been made in view of such circumstances, and one of its purposes is a state in which data stored in each of a plurality of storages is processed in a storage connected to a terminal to be connected. Each of them is maintained in a state where it can be easily transferred to.

In order to solve the above-described problems, the present invention provides a plurality of terminals to which storages each having identification data indicating a terminal to be connected and control data indicating data selection are connected to the plurality of terminals. Determining means for determining whether or not the storage is connected to a terminal to be connected with reference to the identification data of the storage, and any of the plurality of storages connected to the terminal to be connected A storage unit selected by the control data for the storage connected to the terminal when the determination unit determines that the storage is connected to the terminal. If the process relating to the data to be executed is executed and it is determined by the determination means that one of the plurality of storages is not possible, the process is performed. Providing a terminal apparatus characterized by comprising an execution unit that does not line.

  According to the present invention, when one of a plurality of terminals is connected to a storage other than the storage to be connected, the processing corresponding to the terminal is executed for the storage connected to the terminal. Thus, the data stored in each of the plurality of storages can be respectively maintained in a state where the data can be easily shifted to a state processed in the storage connected to the terminal to be connected.

1 is a diagram illustrating an overall configuration of a communication system according to an embodiment. It is a block diagram which shows the structure of a host apparatus. It is a figure which shows the table which matched the installation place and the notification destination. It is a block diagram which shows the hardware constitutions of a karaoke terminal. It is a block diagram which shows the functional structure of the control part of a karaoke terminal. It is a figure which shows matching with each identification data and each terminal. It is a block diagram which shows the functional structure of the control part of a karaoke terminal. It is a figure for demonstrating the state which can switch a terminal. It is a block diagram which shows the functional structure of the control part of a karaoke terminal. It is a figure which shows an example of log | history data. It is a flowchart which shows the process which the control part of a karaoke terminal performs. It is a figure which shows the example of matching with each identification data and each terminal which concern on a modification.

[Embodiment]
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing an overall configuration of a communication system 1 according to an embodiment of the present invention. The communication system 1 includes a plurality of karaoke terminals 10 and a host device 20. The karaoke terminal 10 is a terminal that provides a so-called karaoke function that allows a user to sing along with music or video, and corresponds to an example of a “terminal device” according to the present invention. The karaoke terminal 10 communicates with the host device 20 via the network NW. The host device 20 is a device that is installed at a location different from the karaoke terminal 10 such as a management center, and that manages and manages the karaoke terminal 10. For example, the host device 20 distributes data indicating music or video to the karaoke terminal 10 via the network NW, and operates so that the karaoke terminal 10 can provide a karaoke function. In addition, the host device 20 collects data (history data) indicating the history of processing executed at the karaoke terminal 10, or executes a process for solving the failure when a failure occurs at the karaoke terminal 10. Data to be instructed (instruction data) is transmitted and managed so that the karaoke terminal 10 operates normally. The host device 20 performs these operations automatically or by an operator's operation. Details of the configuration of the host device 20 will be described with reference to FIG.

  FIG. 2 is a block diagram illustrating a configuration of the host device 20. The host device 20 includes a control unit 21, a communication unit 23, a display unit 24, an operation unit 25, and a storage unit 26. The communication unit 23 is a communication unit that transmits or receives data to and from the karaoke terminal 10. Data received by the communication unit 23 is supplied to the control unit 21. The display unit 24 is a display that displays an image under the control of the control unit 21. The operation unit 25 is a button or a touch panel provided on the screen of the display unit 24. When operated by the user, the operation unit 25 supplies operation data indicating the operation content to the control unit 21. The storage unit 26 is a storage unit such as a nonvolatile memory, and stores various data distributed to the karaoke terminal 10, history data sent from the karaoke terminal 10, and the like. The host device 20 distributes various data to the karaoke terminal 10 with the above configuration. The control unit 21 includes a CPU (Central Processing Unit) and a RAM (Random Access Memory). The CPU constructs various functional blocks such as the notification unit 22 by loading the functional program stored in the storage unit 26 into the RAM and executing it. The RAM also functions as an area for temporarily storing data and the like when the CPU executes the function program.

The notification unit 22 is a functional block constructed by the CPU. For example, the operator or a worker in charge of maintenance of the karaoke terminal 10 based on the occurrence of a failure transmitted from the karaoke terminal 10 and data indicating the content thereof. The predetermined content is notified by e-mail or the like. The contents to be notified at this time are, for example, the location where the malfunctioning karaoke terminal is installed, the malfunctioning location, the malfunctioning time, and the like. When notifying the notification destination, the notification unit 22 refers to a table in which a location (installation location) where the karaoke terminal 10 is installed is associated with the notification destination.
FIG. 3 is a diagram illustrating an example of a table in which the installation location of the karaoke terminal 10 and the notification destination are associated with each other. In this example, when the installation location is the A store or the C store, the notification unit 22 is determined to notify both the operator F and the worker G. The notification unit 22 is defined to notify the worker named H when the installation location is the B store and to the worker named I when the installation location is the D store or the E store. This table is stored in the storage unit 26.

  FIG. 4 is a block diagram illustrating a hardware configuration of the karaoke terminal 10. The karaoke terminal 10 includes a control unit 100, a communication unit 210, an operation unit 220, a musical tone synthesis device 250, a mixer 270, a microphone 260, a speaker 280, an image synthesis device 230, a display 240, a first A terminal 300, a second terminal 400, a first hard disk 500, and a second hard disk 600 are provided. The control unit 100 includes a CPU 101, a RAM, and a storage unit 102. The CPU 101 loads various programs stored in the storage unit 102, the first hard disk 500, or the second hard disk 600 into the RAM and executes them, thereby constructing various functional blocks. The RAM also functions as an area for temporarily storing data and the like when the CPU executes the function program. The storage unit 102 includes a read-only nonvolatile memory such as a ROM (Read Only Memory) and a writable nonvolatile memory such as a flash memory, and includes various programs including the control program 103 and data indicating their settings. (Setting data) is stored. The setting data is mainly stored in a writable nonvolatile memory, and data indicating new settings or updated settings is written by the control unit 100. The control program 103 is a program for controlling each part of the karaoke terminal 10 and controls operations such as activation of a program stored in the hard disk.

  The communication unit 210 is a communication unit that communicates data with the host device 20 via a network. The communication unit 210 corresponds to an example of “communication means” according to the present invention. The operation unit 220 is a button, a knob, a touch panel, or a remote controller including these, and when operated by the user, supplies operation data indicating the operation content to the control unit 100. The musical sound synthesizer 250 generates a musical sound signal corresponding to the music data and supplies it to the mixer 270. The musical sound synthesizer 250 has sound source data for MIDI (Musical Instrument Digital Interface) data. When the music data is MIDI data, the musical sound synthesizer 250 generates a musical sound signal using these sound source data. The microphone 260 converts the sound into an audio signal and supplies it to the mixer 270. The mixer 270 supplies a signal obtained by mixing a musical sound signal and an audio signal to the speaker 280. The speaker 280 outputs a sound obtained by converting the supplied signal. When the lyric data and the video data are supplied, the image synthesizer 230 synthesizes the video of the lyrics character string indicated by the lyric data with the video indicated by the video data and causes the display 240 to display it.

  The first terminal 300 and the second terminal 400 are terminals for connecting a hard disk and have the same shape. The first terminal 300 is connected to the first hard disk 500, and the second terminal 400 is connected to the second hard disk 600. The first terminal 300 and the second terminal 400 have predetermined hard disks to be connected to each other. In other words, the hard disks to be connected are determined in correspondence with these terminals, and these hard disks are hereinafter referred to as hard disks corresponding to the terminals. The first terminal 300 corresponds to the first hard disk 500, and the second terminal 400 corresponds to the second hard disk 600. Data indicating these correspondences is stored in the storage unit 102, and the control program 103 determines whether or not the terminal and the hard disk correspond to each other based on this data. FIG. 4 shows a state in which each terminal is correctly connected to the corresponding hard disk.

The first hard disk 500 and the second hard disk 600 are devices that store data and programs (specifically, data representing programs), and store data and programs distributed from the host device 20, for example. These data and programs are written to the hard disk, changed, read, or deleted by the control unit 100 controlling these hard disks.
The first hard disk 500 stores data for providing a karaoke function. Specifically, the first hard disk 500 includes a karaoke program 510, a management program 520, control data 530, identification data 540, first music data 550, first video data 560, and second music. Data 570, second video data 580, and MIDI sound source data are stored.

  The control data 530 is data indicating information (so-called settings) for controlling the operations of the karaoke program 510 and the management program 520. For example, the presence or absence of karaoke scoring or music and video that are not reproduced. This is data indicating the setting. The settings indicated by the control data 530 include settings common to the second hard disk 600 and settings unique to the first hard disk 500. The identification data 540 is data indicating a terminal to which the first hard disk 500 is to be connected. In other words, the identification data 540 is data indicating a terminal corresponding to the first hard disk 500. In the present embodiment, the identification data 540 is data indicating a character string “terminal 1” indicating the first terminal 300. “Terminal 1” indicates that it corresponds to the first terminal 300. The identification data 540 is stored when the data is first stored after the first hard disk 500 is manufactured, and then stored in a state protected by the program and not updated. That is, the identification data 540 indicates that the first hard disk 500 is a hard disk corresponding to the first terminal 300 by the character string “terminal 1” regardless of which terminal the first hard disk 500 is connected to.

  The first music data 550 is data in which karaoke music is represented by audio data. The second music data 570 is data in which karaoke music is represented by MIDI data. For this reason, the first music data 550 has a capacity that is several tens to several hundred times larger than that of the second music data 570. The first video data 560 and the second video data 580 are data representing videos to be displayed when karaoke music is being played. The first video data 560 represents a video corresponding to a song prepared for each song, and the second video data 580 represents a common video regardless of the song. Therefore, the first video data 560 is data having a capacity that is several tens to several hundred times larger than the second video data 580.

  The karaoke program 510 is a program that provides a karaoke function. When the karaoke program 510 is executed, each piece of music data and each video data is reproduced, and sound converted by the microphone 260 is output from the speaker 280. When the karaoke program 510 is executed, the converted voice is scored, and the video specified for each piece of music from the information indicated in the control data 530 is reproduced. The management program 520 is a program that provides a function for operating and managing the karaoke terminal 10. When the management program 520 is executed, for example, data distribution from the host device 20 is controlled, and history information indicating a history of processing executed by the control unit 100 is output. When the management program 520 is executed, a management or operation process indicated by the instruction data transmitted from the host device 20 is executed. Thereby, the operator who operates the host apparatus 20 operates the karaoke terminal 10 from a remote place.

  The second hard disk 600 stores data for providing a karaoke function when the first hard disk 500 fails. Specifically, the second hard disk 600 has a karaoke program 610, a management program 620, control data 630, identification data 640, second video data 680, second music data 670, and MIDI sound source data. And are stored. These programs and data are backups of the programs and data stored in the first hard disk 500, excluding a part of the control data 530, the identification data 540, the first video data 560, and the first music data 550. The contents are the same as those stored in the first hard disk. The settings indicated by the control data 630 include settings common to the first hard disk 500 and settings unique to the second hard disk 600. The identification data 640 is data that is different in content from the identification data 540 and indicates a terminal to which the second hard disk 600 should be connected (corresponding to the second hard disk 600). In the present embodiment, the identification data 640 is data indicating a character string “terminal 2” indicating the second terminal 400. Since the second hard disk 600 does not store the first video data 560 and the first music data 550 having a larger capacity than other data, a hard disk having a smaller capacity than the first hard disk 500 can be used. In the embodiment, this is the case. Note that the capacity of the hard disk used for the second hard disk 600 is not limited to this, and may be the same as or larger than that of the first hard disk 500.

  In a state in which the karaoke program 510 can be operated, the control unit 100 provides a karaoke function using data stored in the first hard disk 500. In this case, the user can sing a song (enjoying karaoke) while listening to the performance of the music based on the audio data on a different video for each music. On the other hand, in a state where the karaoke program 510 cannot be operated, for example, in a state where the first hard disk 500 fails and does not operate, the control unit 100 operates the karaoke program 610 and is stored in the second hard disk 600. Provide karaoke functions using data. In this case, the user performs karaoke while listening to the performance of the music based on the MIDI sound source data on the fixed video. If both karaoke programs can be activated, the control unit 100 activates the karaoke program 510 with priority. The control unit 100 controls activation of the karaoke program and the management program by the control program 103.

Next, functional blocks constructed when the control unit 100 executes a functional program in the hardware configuration described above will be described with reference to FIGS.
FIG. 5 is a block diagram illustrating a functional configuration of the control unit 100. The control unit 100 includes a data processing unit 111, a distribution control unit 112, a backup unit 113, a detection unit 114, and a determination unit 115. The data processing unit 111 controls processing related to data recording on the hard disk. Specifically, the data processing unit 111 writes, changes, reads, or deletes data (including data representing a program) to the hard disk via a terminal. For example, the data processing unit 111 executes these processes in response to an instruction from the distribution control unit 112 or the backup unit 113.

  The distribution control unit 112 controls the distribution of data from the host device 20. Specifically, the distribution control unit 112 selects data to be distributed to the karaoke terminal 10 from a list in which data to be distributed transmitted from the host device 20 is described, and distributes the selected data. Requests to the host device 20. The distribution control unit 112 makes this selection based on data distribution setting information described in the control data 530 (or 630) shown in FIG. In this setting information, for example, the range of music data and video data used in the karaoke terminal 10 and the versions of these data are shown. Further, when the requested data is transmitted from the host device 20, the distribution control unit 112 supplies the data to the data processing unit 111 and instructs writing to the hard disk.

  The backup unit 113 backs up the data of the hard disk connected to the first terminal 300 to the hard disk connected to the second terminal 400. Specifically, the backup unit 113 instructs the data processing unit 111 to read data stored in the first hard disk 500, selects data having the same content as the second hard disk 600, and selects these data. Data is read from the first hard disk 500 and written to the second hard disk 600. The backup unit 113 executes this process based on the setting indicated by the control data 530 (or 630) shown in FIG.

The detection unit 114 detects identification data stored in the hard disk. In the present embodiment, the detection unit 114 detects identification data 540 (that is, data indicating a character string “terminal 1”) from the first hard disk 500, and identification data 640 (that is, “terminal 2”) from the second hard disk 600. Is detected).
The determination unit 115 determines whether or not the first terminal 300 matches the terminal represented by the identification data stored in the hard disk connected to the first terminal 300. Specifically, first, the setting data stored in the storage unit 102 indicates the association between the identification data and the terminals shown in FIG.

  FIG. 6 is a diagram illustrating the association between each identification data and each terminal. In the setting data, as shown in this figure, the identification data is indicated by a character string. If the content of the character string is “terminal 1”, it corresponds to the first terminal 300 and “terminal 2”. ”Indicates that it corresponds to the second terminal 400. The determination unit 115 refers to the setting data, and if the identification data detected from the hard disk connected to the first terminal 300 is data indicating the character string “terminal 1”, the determination unit 115 and the identification data If the identification data is not data indicating the character string “terminal 1”, it is determined that they do not match. In the state shown in FIG. 4, since the identification data 540 stored in the first hard disk 500 connected to the first terminal 300 is data indicating the character string “terminal 1”, the determination unit 115 determines the first It is determined that the terminal 300 matches the terminal indicated by the identification data. The determination unit 115 similarly determines the second terminal 400.

  FIG. 7 is a diagram illustrating functional blocks of functions that operate according to the determination result by the determination unit 115. The restriction unit 116 performs a process corresponding to each terminal on the hard disk connected to the first terminal 300 and the second terminal 400 when there is even one result that the determination unit 115 determines (does not match). Restrict not to run. Here, the processing corresponding to each terminal means that when storage to be connected is connected to each terminal, data to be stored in each storage is written, changed, read, or deleted. It is processing to do. The processing corresponding to each terminal includes processing for instructing these processing and processing for requesting an operation related to these processing. The process corresponding to each terminal is, for example, a process in which the data processing unit 111 writes data to be stored in the first hard disk 500, that is, the first music data 550 or the first video data 560. Further, the processing corresponding to each terminal is processing in which the distribution control unit 112 requests data distribution, and the backup unit 113 is processing to instruct backup. In other words, since each of these units is not limited by the limiting unit 116 when the determining unit 115 determines that each hard disk is connected to a terminal to be connected, Then, processing corresponding to the terminals to which these hard disks are connected is executed. Each unit whose processing is limited by the limiting unit 116 stops the processing halfway if the processing is being executed, and cancels the processing without executing the processing before the execution. The restricting unit 116 restricts processing corresponding to each terminal based on each setting indicated by the control data 530 (or 630) illustrated in FIG.

  The switching unit 117 operates in a state where the processing to the hard disk is restricted by the restriction unit 116, that is, in a state where there is even one result that the determination unit 115 determines that they do not match (no). From this state, the switching unit 117 performs a process corresponding to the terminal to which the hard disk represented by the identification data stored in each hard disk is connected to each hard disk connected to each terminal. Switch to. Specifically, the switching unit 117 writes data indicating that “terminal 1” corresponds to the second terminal 400 and “terminal 2” corresponds to the first terminal 300 to the ROM. Thereby, for example, if the identification data detected from the hard disk connected to the first terminal 300 is data indicating the character string “terminal 2”, the determination unit 115 indicates the first terminal 300 and the identification data. It is determined that the terminal matches. The switching unit 117 performs the switching process when it is possible. This case will be described with reference to FIG.

  FIG. 8 is a diagram for explaining a state in which the terminals can be switched. FIG. 8A shows a karaoke terminal (that is, the karaoke terminal 10 of the present embodiment) in a state where terminals and hard disks corresponding to each other are correctly connected. FIGS. 8B, 8C, and 8D show examples of the karaoke terminal 10 in a state in which either or both of the first terminal 300 and the second terminal 400 are erroneously connected to a hard disk that does not correspond. ing. In FIG. 8B, the karaoke terminal 10 shows a state where the second hard disk 600 is connected to the first terminal 300 and the first hard disk 500 is connected to the second terminal 400. That is, in this example, the combination of the hard disks corresponding to each terminal (first hard disk 500 and second hard disk 600) is the combination of the hard disks connected to each terminal (second hard disk 600 and first hard disk 500). Although coincident with each other, a hard disk opposite to the corresponding hard disk is connected to these terminals. In this state, when the switching unit 117 performs the above switching, the corresponding hard disk is connected to the first terminal 300 and the second terminal 400, respectively. That is, the state shown in FIG. 8B is a state where the above-described terminal switching is possible.

FIG. 8C shows a state in which the first hard disk 500 is connected to both the first terminal 300 and the second terminal 400. In FIG. 8D, the first hard disk 500 is connected to the first terminal 300, but a third hard disk that is different from the first hard disk 500 and the second hard disk 600 is connected to the second terminal 400. The state is shown. In these states, even if the switching is performed by the switching unit 117, the corresponding hard disks are not connected to the first terminal 300 and the second terminal 400, respectively. That is, the state shown in FIGS. 8C and 8D is not a state where the above-described terminal switching is possible.
In summary, the state where the terminals can be switched is a state where the switching unit 117 performs the switching process so that the hard disk is correctly connected. Specifically, the hard disk connection is incorrect, and The hard disk combination is correct.

  As described above, in the control unit 100, the data processing unit 111, the distribution control unit 112, the backup unit 113, the detection unit 114, the restriction unit 116, and the switching unit 117 cooperate to make the “execution unit” according to the present invention. Realize the function. Each of these units is a terminal connected to the hard disk connected to each terminal based on each setting indicated by the control data 530 (or 630) shown in FIG. 4 or setting data stored in the storage unit 102. Perform the corresponding process.

  FIG. 9 is a diagram illustrating functional blocks of functions related to the history data described above. The generation unit 118 is supplied with data indicating the history of processing executed by each unit from the data processing unit 111, the distribution control unit 112, the backup unit 113, the detection unit 114, the determination unit 115, the restriction unit 116, and the switching unit 117. History data indicating the history of processing indicated by the supplied data is generated. For example, the history data indicates a history of the results of the determination performed by the determination unit 115 described above. The generation unit 118 supplies the generated history data to the output unit 119. The output unit 119 outputs the supplied history data to the host device 20 shown in FIG.

  FIG. 10 is a diagram illustrating an example of history data. The history data indicates the time when the process is executed (process time), the function that executed the process, and the content of the process. In this example, it is shown that the distribution control unit 112 instructs the data processing unit 111 to write data to the first hard disk (HD) 500 at time 1, and the data processing unit 111 transmits the data at time 2. It is shown that data has been written to the first hard disk 500. In addition, it is indicated that the backup unit 113 instructs the data processing unit 111 to perform a backup operation at time 3, and at time 4, the data processing unit 111 reads data from the first hard disk (HD) and stores the data in the first 2 indicates that data has been written to the hard disk 600. The result of detection by the detection unit 114 at time 11 indicates that the determination unit 115 has determined that the connection between the terminal and the hard disk is incorrect at time 12. As a result, the restriction unit 116 restricts the content of processing executed by each unit at time 13, the distribution control unit 112 stops the operation of requesting data at time 14, and the backup unit 113 backs up at time 15. It is shown that the commanding operation has been stopped. In the history data, even if the process is not executed due to restriction by the restriction unit 116, it is indicated as a history that it was not executed (cancelled).

Next, operation | movement of the control part 100 of the karaoke terminal 10 which concerns on embodiment is demonstrated.
FIG. 11 is a flowchart showing the operation of the control unit 100. The control unit 100 starts to operate when the karaoke terminal 10 is turned on. First, the control unit 100 detects the identification data 540 (character string “terminal 1”) from the first hard disk 500, which is a hard disk connected to the first terminal 300 (step S10). Subsequently, the control unit 100 detects the identification data 640 (character string “terminal 2”) from the second hard disk 600, which is a hard disk connected to the second terminal 400 (step S20). Then, the control unit 100 determines whether or not the terminal indicated by the detected identification data is different from the terminal to which the hard disk that stores the identification data is connected (step S30).

  When the karaoke terminal 10 is in the state illustrated in FIG. 8A, the control unit 100 determines that the first terminal 300 indicated by the character string “terminal 1” is not different from the terminal to which the first hard disk 500 is connected (No). Is determined. When it determines with it being no in step S30 (step S30: No), the control part 100 performs the process in normal mode (step S40). Here, the normal mode refers to a mode in which the karaoke terminal 10 is operated in a normal state in which the corresponding hard disk is connected to each terminal. For example, the distribution control unit 112 and the data processing unit 111 described above. , A mode in which processing by the backup unit 113 is executed without limitation.

  When the karaoke terminal is in each of the states shown in FIGS. 8B, 8C, and 8D, the control unit 100 has a hard disk that stores at least one of the terminals indicated by the identification data. Judged to be different from the connected terminal. In this case, the control unit 100 determines that the difference is made in step S30 (step S30: Yes), and performs the process in the restriction mode (step S50). Here, the restriction mode refers to a mode in which a part of the processing executed in the normal mode is restricted so as not to be executed (that is, the operation is restricted more than in the normal mode). Means a state in which processing is performed. As a result, in a state where the connection is incorrect, data different from the data that should originally be stored in each hard disk will not continue to be stored, and a state where the transition to the correct connection is easy is maintained.

  Subsequently, the control unit 100 determines whether or not the combination of the hard disks connected to each terminal matches the combination of the hard disks corresponding to each terminal (step S60). If the karaoke terminal 10 is in the state shown in FIG. 8B, the control unit 100 determines that these combinations match (step S60: Yes), and performs processing in the switching mode (step S70). Here, the switching mode refers to a mode in which the processing in the normal mode is executed after the above-described terminal switching is executed. If the karaoke terminal 10 is in the state shown in FIGS. 8C and 8D, the control unit 100 determines NO in step S60 (step S60: NO), and ends the process without switching. .

  By the way, in the karaoke terminal 10, when the hard disk connected to the terminal is not a hard disk corresponding to the terminal (the connection is incorrect), if the operation is continued in the normal mode described above, the function provided by the karaoke terminal 10 is provided. May cause trouble. For example, when the second hard disk 600 is connected to the first terminal 300 and the first hard disk 500 is connected to the second terminal 400, the first video to be distributed to the first hard disk 500 is displayed on the second hard disk 600. Various data including data and first music data is distributed. Since the second hard disk 600 has a smaller capacity than the first hard disk 500 as described above, it cannot store the first video data and the first music data. For this reason, the karaoke terminal 10 is in a state where data cannot be distributed, and the video and music that are supposed to be reproduced cannot be reproduced, or the video different from the video that is supposed to be reproduced is reproduced.

  The second hard disk 600 has almost no free space when the first video data and the first music data are distributed. For this reason, even if the management program 620 is to be executed, the data cannot be written and the processing becomes extremely slow or cannot be executed. If the backup process is executed in this state, the data to be backed up (in this case, the data stored in the first hard disk 500 connected to the second terminal 400) is also the data that should be stored originally. Will be different. For this reason, as data is added, changed, or deleted while continuing to be used while the connection is in an incorrect state, the original data state (the state prior to the start of use with an incorrect connection state) is restored. Work becomes difficult.

  The history data generated by the generation unit 118 shown in FIG. 9 is, for example, text data in units of several tens of characters accumulated every time the control unit 100 operates, and thus data having a smaller capacity than video data and music data. It is. For this reason, the generation unit 118 continues to generate history data not only in a state where the connection is incorrect, but also in a state where the free space of the second hard disk 600 is almost exhausted. This history data becomes data in which many histories are accumulated as time passes. The output unit 119, for example, at the time when the karaoke terminal 10 is turned on and each program is started, or after a predetermined time such as 12 hours or 24 hours has passed, The history data in which the history is accumulated is output to the host device 20.

  When the history data is supplied via the communication unit 23, the notification unit 22 illustrated in FIG. 2 determines whether the terminal and the hard disk are correctly connected based on the presence or absence of processing by the restriction unit 116 indicated by the supplied history data. Judge whether or not. If it is determined that the connection is not correct, the notification unit 22 notifies the above-described operator and maintenance worker of predetermined information such as information that conveys that fact by means of e-mail or the like. Further, when the history data supplied thereafter indicates that the state where the connection is not correctly made continues for a predetermined number of times, for example, 10 times or 20 times, the notification unit 22 again To the operator and maintenance workers. The notification by the notification unit 22 is performed until the connection is made correct by performing the operation of reconnecting the hard disk or the switching process by the switching unit 117. The notification unit 22 corresponds to an example of a “notification unit” according to the present invention. As described above, the operation of each control unit in the karaoke terminal 10 and the host device 20 prompts the terminal and the hard disk to be correctly connected.

  If the control unit 100 determines that the connection is incorrect, the control unit 100 restricts data processing for each hard disk as described above. For this reason, addition, modification or deletion of data is also restricted, and it is closer to the state of the original data, that is, transition to the original data than when the connection is used in the normal mode with an incorrect connection. Can maintain an easy state. If the connected hard disk is wrong but the combination of the hard disks is correct, the control unit 100 switches the connected terminals as described above so that the correct connection can be made quickly without waiting for maintenance work. Can be switched.

[Modification]
The above-described embodiment is merely an example of implementation of the present invention, and various applications and modifications are possible as follows, and can be combined as necessary.

(Modification 1)
In the present invention, the identification data may be other than “terminal” + numeric character string. For example, only numbers may be used, or alphabets may be used instead of numbers. Further, the identification data may not be a meaningful character string, and for example, a hard disk serial number or the like may be used. The capacity of the hard disk may be used as identification data. In this case, if the capacity is larger than the threshold value, it is identified as a hard disk to be connected to the first terminal 300, and if it is equal to or less than the threshold value, it is determined that the hard disk is to be connected to the second terminal 400. In other words, the identification data is data that can be detected from the hard disk and only needs to indicate the terminal to which the hard disk is to be connected, and what value the identification data corresponds to which terminal. It is only necessary that data indicating the relationship is stored in the storage unit 102.

  FIG. 12 is a diagram illustrating an example of association between each identification data and each terminal according to the present modification. FIG. 12A shows an example in which terminals are associated with hard disk serial numbers. FIG. 12B shows an example in which terminals are associated according to the capacity of the hard disk. In the case of this example, if the capacity is 5 TB (terabyte) or more, the hard disk has a capacity capable of storing the first musical sound data and the first video data, and is associated with the first terminal. FIG. 12C shows an example in which terminals are associated with each other depending on whether or not determined data is stored. In this example, the hard disk storing the first musical tone data is associated with the first terminal, and the hard disk not storing is associated with the second terminal. In any of the above cases, these associations may be indicated in the setting data stored in the storage unit 102, and the control unit 100 may determine the association between the terminal and the hard disk with reference to the setting data.

(Modification 2)
In the present invention, the detection unit 114 may detect a terminal to which each hard disk is connected from data other than the identification data. For example, when there is a type of data (for example, the first video data 560 or the first music data 550) that is stored in the first hard disk 500 and not stored in the second hard disk 600, the detection unit 114 stores these data. Can be detected. In this case, it is possible to determine whether or not the connection is correct without storing the identification data in advance.

(Modification 3)
In the present invention, the control unit 100 does not have to perform the processing of steps S60 and S70 (terminal switching). For example, when the first terminal 300 and the second terminal 400 correspond to other terminals and devices, these correspondences must also be switched in order to make a correct connection. In such a case, the control unit 100 only needs to operate so as to wait for the terminal connection to be physically switched, only by restricting the processing to the hard disk.

(Modification 4)
In the present invention, the control unit 100 may switch terminals by transferring data stored in the hard disk to each other. For example, in the state shown in FIG. 8B, the control unit 100 migrates data stored in the first hard disk 500 to the second hard disk 600, and transfers data stored in the second hard disk 600 to the first hard disk 500. You may migrate. In this case, however, the second hard disk 600 needs to be a hard disk having a capacity sufficient to store the first music data 550 and the first video data 560.

(Modification 5)
In the present invention, the number of terminals connected to the hard disk is not limited to two, but may be three or more, and it is only necessary that the hard disks corresponding to these terminals are determined in advance. In this case, the control unit of the karaoke terminal operates in the normal mode when these terminals match the terminals represented by the identification data stored in the connected hard disks, and in the limited mode when these do not match. Should work.

(Modification 6)
In the present invention, in the embodiment described above, the control unit 100 executes the processing in the restricted mode if there is even one hard disk that is incorrectly connected, but only the hard disk that is incorrectly connected is limited. Processing in the mode may be executed. In other words, the control unit 100 may limit processing in a part of the plurality of hard disks. Thus, for example, in the state shown in FIG. 8D (the connection of the first terminal 300 is correct and only the connection of the second terminal 400 is incorrect), the karaoke function in the normal mode using the first hard disk 500 However, it is possible to prevent a situation in which the distributed music data is not stored because it operates in the restricted mode.

(Modification 7)
In the embodiment described above, the hard disk is connected to the first terminal 300 and the second terminal 400, but the present invention is not limited to this. Any other storage such as an SSD (Solid State Drive) may be used as long as it can store data.

(Modification 8)
The terminal device according to the present invention is a karaoke terminal in the above-described embodiment, but is not limited thereto, and includes a plurality of storages, and terminals to be connected to these are respectively associated with each other. Any terminal device may be used. Even in this case, the terminal device according to the present invention determines whether or not all of the plurality of storages are connected to the terminals to be connected by the identification data. By restricting the processing corresponding to each terminal not to be executed for each storage, the data stored in each of these multiple storages is processed in the storage connected to the terminal to be connected. Each can be maintained in a state where it can be easily transferred.

DESCRIPTION OF SYMBOLS 1 ... Communication system, 10 ... Karaoke terminal, 100 ... Control part, 101 ... CPU, 102 ... Memory | storage part, 103 ... Control program, 111 ... Data processing part, 112 ... Delivery control part, 113 ... Backup part, 114 ... Detection part , 115 ... determination unit, 116 ... restriction unit, 117 ... switching unit, 118 ... generation unit, 119 ... output unit, 210 ... communication unit, 220 ... operation unit, 240 ... display, 300 ... first terminal, 400 ... second Terminal, 500 ... first hard disk, 510, 610 ... karaoke program, 520,620 ... management program, 530,630 ... control data, 540,640 ... identification data, 550 ... first music data, 560 ... first video Data: 570, 670: second music data, 580, 680: second video data, 600: second hard disk, 20 The host device, 21 ... control unit, 22 ... notification unit, 23 ... communication unit, 24 ... display unit, 25 ... operation unit, 26 ... storage unit

Claims (1)

A plurality of terminals to which storages each having identification data indicating a terminal to be connected and control data indicating selection of data are connected;
Determining means for determining whether the storage is connected to a terminal to be connected with reference to the identification data of the storage connected to each of the plurality of terminals;
When the determination unit determines that any of the plurality of storages is connected to a terminal to be connected, a process corresponding to the terminal with respect to the storage connected to the terminal, When processing related to data to be stored selected by the control data is performed on the storage connected to the terminal, and the determination means determines that one of the plurality of storages is not, the processing The terminal device characterized by comprising: an executing means that does not execute.

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