JP2021114033A - Electronic apparatus control device and display control system - Google Patents

Abstract

To provide an electronic apparatus control device which can suppress the wasteful consumption of a storage capacity of an electronic apparatus.SOLUTION: An electronic apparatus control device comprises a log acquisition part 151, a log determination part 152 and an apparatus control part 153. The log acquisition part 151 acquires the log information on an electronic apparatus which is stored in the electronic apparatus. The log determination part 152 determines whether or not the log information on a reference electronic apparatus coincides with the log information on the electronic apparatus which is different from the reference electronic apparatus. When the log determination part 152 determines that the log information on the reference electronic apparatus coincides with the log information on the different electronic apparatus, the apparatus control part controls a preservation electronic apparatus so that the preservation electronic apparatus being one electronic apparatus of a plurality of electronic apparatuses preserves the log information on the reference electronic apparatus, and controls the electronic apparatus which is different from the preservation electronic apparatus so that the electronic apparatus different from the preservation electronic apparatus eliminates the coincident log information which is stored in the different electronic apparatus.SELECTED DRAWING: Figure 2B

Description

The present invention relates to an electronic device control device and a display control system.

The operation history utilization system described in Patent Document 1 includes a terminal home appliance and a server home appliance. Each of the plurality of terminal home appliances includes a device agent. The device agent records the device operation history triggered by the user's operation. The server home appliance includes a user agent. The user agent records the device operation history transmitted from the device agent at a predetermined timing.

Japanese Unexamined Patent Publication No. 2004-185612

In the operation history utilization system described in Patent Document 1, since log information such as device operation history is also stored in the home electric appliance, a large amount of the same log information as that of the server home appliance is stored. Since a large amount of duplicate log information is stored, the remaining storage capacity of the home electric appliance is reduced. Therefore, the storage capacity of the home electric appliance is wasted due to the duplicated log information.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an electronic device control device and a display control system capable of suppressing wasteful consumption of storage capacity of an electronic device.

According to one aspect of the present invention, the electronic device control device includes a log acquisition unit, a log determination unit, and a device control unit. The log acquisition unit acquires log information of the electronic device stored in the electronic device from each of the plurality of electronic devices. In the log determination unit, the log information of the reference electronic device which is one of the plurality of electronic devices matches the log information of the difference electronic device which is the electronic device different from the reference electronic device. Judge whether or not. The device control unit controls the plurality of electronic devices. When the log determination unit determines that the log information of the reference electronic device matches the log information of the difference electronic device, the device control unit is a storage that is one of the plurality of electronic devices. The storage electronic device is controlled so that the electronic device stores the log information of the reference electronic device, and the electronic device different from the storage electronic device is stored by the electronic device different from the storage electronic device. The electronic device different from the storage electronic device is controlled so as to delete the matching log information.

According to one aspect of the present invention, the display control system includes a plurality of electronic devices and an electronic device control device. The electronic device control device controls the plurality of electronic devices. The electronic device control device includes a log acquisition unit, a log determination unit, and a device control unit. The log acquisition unit acquires log information of the electronic device stored in the electronic device from each of the plurality of electronic devices. In the log determination unit, the log information of the reference electronic device which is one of the plurality of electronic devices matches the log information of the difference electronic device which is the electronic device different from the reference electronic device. Judge whether or not. The device control unit controls the plurality of electronic devices. When the log determination unit determines that the log information of the reference electronic device matches the log information of the difference electronic device, the device control unit is a storage that is one of the plurality of electronic devices. The storage electronic device is controlled so that the electronic device stores the log information of the reference electronic device, and the electronic device different from the storage electronic device is stored by the electronic device different from the storage electronic device. The electronic device different from the storage electronic device is controlled so as to delete the matching log information.

According to the electronic device control device and the display control system of the present invention, wasteful consumption of the storage capacity of the electronic device can be suppressed.

It is a figure which shows the display control system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the source apparatus of the display control system which concerns on Embodiment 1. FIG. It is a block diagram which shows the 1st electronic device of the display control system which concerns on Embodiment 1. FIG. It is a block diagram which shows the 2nd electronic device of the display control system which concerns on Embodiment 1. FIG. It is a block diagram which shows the 3rd electronic device of the display control system which concerns on Embodiment 1. FIG. It is a block diagram which shows the 4th electronic device of the display control system which concerns on Embodiment 1. FIG. It is a figure which shows an example of the storage area of the 1st storage part which stored the log information of the 1st electronic device which concerns on Embodiment 1. FIG. It is a figure which shows an example of the storage area of the 2nd storage part which stored the log information of the 2nd electronic device which concerns on Embodiment 1. FIG. It is a figure which shows an example of the storage area of the 3rd storage part which stored the log information of the 3rd electronic device which concerns on Embodiment 1. FIG. It is a figure which shows an example of the storage area of the 4th storage part which stored the log information of the 4th electronic device which concerns on Embodiment 1. FIG. It is a figure which shows an example of the storage area of the 1st storage part where the log information which concerns on Embodiment 1 is stored. It is a figure which shows an example of the storage area of the 2nd storage part which concerns on Embodiment 1. FIG. It is a figure which shows an example of the storage area of the 3rd storage part where the log information which concerns on Embodiment 1 is stored. It is a figure which shows an example of the storage area of the 4th storage part which concerns on Embodiment 1. FIG. It is a figure which shows the log information screen which concerns on Embodiment 1. It is a figure which displayed the image which shows the 2nd log information of a mismatch on the log information screen shown in FIG. It is a flowchart which shows the process which the 1st control part which concerns on Embodiment 1 execute. It is a flowchart which shows the preservation process which the 1st control part which concerns on Embodiment 1 execute. It is a block diagram which shows the 1st control part which concerns on Embodiment 2 of this invention. It is a figure which shows the log information stored in the storage area of the 1st electronic device which concerns on Embodiment 2. It is a figure which shows the log information stored in the storage area of the 3rd electronic device which concerns on Embodiment 2. It is a figure which shows the log information stored in the storage electronic device which concerns on Embodiment 2. Is a diagram showing a storage area of a storage electronic device after deleting erroneous log information according to the second embodiment. Is a diagram showing a storage area of a storage electronic device in which the modified log information according to the second embodiment is stored. It is a flowchart which shows the preservation process which the 1st control part of Embodiment 2 executes. FIG. 5 is a flowchart showing a correctness determination process executed by the correctness determination unit of the second embodiment. It is a flowchart which shows the process of the 1st control part which concerns on Embodiment 3 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals and the description is not repeated.

[Embodiment 1]
The display control system 1 according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing a display control system 1 according to the first embodiment of the present invention. The display control system 1 is used, for example, in the field of digital signage.

As shown in FIG. 1, the display control system 1 includes a source device 10, a first wire rod 20, a second wire rod 30, and a plurality of electronic devices.

In the first embodiment, the plurality of electronic devices are composed of a first electronic device 100, a second electronic device 200, a third electronic device 300, and a fourth electronic device 400. The number of electronic devices may be two or more, and is not limited to four in the first embodiment.

The source device 10, the first electronic device 100, the second electronic device 200, the third electronic device 300, and the fourth electronic device 400 are communicably connected.

The source device 10 transmits a video signal. The source device 10 may transmit a video signal of the content acquired via a communication network such as the Internet, or may transmit a video signal of the content stored in the source device 10. Further, a video signal of the content read from an external storage device such as a USB (Universal Social Bus) memory connected to the source device 10 may be transmitted.

The video signal transmitted from the source device 10 is transmitted in the order of, for example, the first electronic device 100, the second electronic device 200, the third electronic device 300, and the fourth electronic device 400.

In the first embodiment, each of the first electronic device 100 to the fourth electronic device 400 is a display device. Upon receiving the video signal, each of the first electronic device 100 to the fourth electronic device 400 divides the image indicated by the video signal into a plurality of divided images. Then, each of the first electronic device 100 to the fourth electronic device 400 causes the display unit of the own device to display the divided image corresponding to the own device among the plurality of divided images. As a result, one image is displayed in the entire first electronic device 100 to the fourth electronic device 400. It should be noted that each of the first electronic device 100 to the fourth electronic device 400 may display the image as it is without performing the image division processing.

Next, the display control system 1 according to the first embodiment of the present invention will be described in more detail with reference to FIGS. 1 to 5. FIG. 2A is a block diagram showing a source device 10 of the display control system 1 according to the first embodiment of the present invention. FIG. 2B is a block diagram showing a first electronic device 100 of the display control system 1 according to the first embodiment of the present invention. FIG. 3 is a block diagram showing a second electronic device 200 of the display control system 1 according to the first embodiment of the present invention. FIG. 4 is a block diagram showing a third electronic device 300 of the display control system 1 according to the first embodiment of the present invention. FIG. 5 is a block diagram showing a fourth electronic device 400 of the display control system 1 according to the first embodiment of the present invention.

As shown in FIG. 2A, the source device 10 includes a storage unit 11, a communication unit 12, and a control unit 13.

The storage unit 11 includes a main storage device (for example, a semiconductor memory) such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and may further include an auxiliary storage device (for example, a hard disk drive). The storage unit 11 stores various computer programs executed by the control unit 13.

The communication unit 12 is an interface for communicating with other devices, for example, a wired LAN (Local Area Network), a wireless LAN, RS (Recommended Standard) -232C, USB, DDC / CI (Display Data Channel Interface). , And / or HDMI®-CEC (High Definition Multimedia Interface Controller Electronics Control) is used.

The communication unit 12 includes, for example, an input / output terminal such as HDMI (registered trademark) and a display port, and a communication module such as a wireless LAN board.

The control unit 13 includes a processor such as a CPU (Central Processing Unit), an MPU (Micro Processing Unit), an LSI (Large Scale Integration), and an ASIC (Application Specific Integrated Circuit). The control unit 13 controls each element of the source device 10 by executing a computer program stored in the storage unit 11.

As shown in FIG. 1, each of the first electronic device 100 to the fourth electronic device 400 is a display. The display is, for example, a liquid crystal display (Liquid Crystal Display), an organic EL (Electro Luminescence) display, or a plasma display.

As shown in FIG. 2B, the first electronic device 100 includes a first display unit 101, a first storage unit 102, a first communication unit 103, a first signal output unit 104, and a first control unit 105. It includes a first analysis unit 106, a first scaling unit 107, a first decoding unit 108, a first OSD (On-Screen Display) processing unit 109, and a first operation unit 111.

The first display unit 101 includes, for example, a liquid crystal panel and displays an image.

The first storage unit 102 includes a main storage device such as a ROM and a RAM, and may further include an auxiliary storage device. The first storage unit 102 stores various computer programs executed by the first control unit 105. The first storage unit 102 includes a storage area 102A and a storage area 102B. The storage area 102A temporarily stores the log information of the first electronic device 100. The storage area 102A stores the log number, the information indicating the input source, the information indicating the input signal, the time when the signal is stored, and the state change information in association with each other. The storage area 102B stores log information.

The first storage unit 102 stores the set value related to the display of the first display unit 101 and the information indicating the input source. The display setting value includes, for example, a brightness setting value and a contrast setting value. Further, the information indicating the input source is information indicating the route through which the video signal is input. The set value related to the display of the first electronic device 100 is set to the same value as the set value related to the display of each of the second electronic device 200 to the fourth electronic device 400.

The first communication unit 103 is an interface for communicating with other devices, and is used by, for example, a wired LAN, a wireless LAN, RS-232C, USB, DDC / CI, and / or HDMI (registered trademark) -CEC. Be done. The first communication unit 103 includes, for example, an input / output terminal such as HDMI (registered trademark) and a display port, and a communication module such as a wireless LAN board. The first control unit 105 includes a CPU and a processor such as an MPU.

The first decoding unit 108 decodes the video signal input via the first communication unit 103.

The first analysis unit 106 analyzes the signal information, the resolution information, and the color information based on the video signal decoded by the first decoding unit 108.

The first scaling unit 107 enlarges or reduces the video data decoded by the first decoding unit 108.

The first signal output unit 104 outputs video data to the first display unit 101.

The first OSD processing unit 109 causes the first display unit 101 to display the OSD when there is an input for displaying the OSD from the first operation unit 111. In the OSD displayed on the first display unit 101, the setting value related to the display of the first display unit 101 can be changed.

The first operation unit 111 accepts various operations.

The first control unit 105 controls each element of the first electronic device 100 by executing a computer program stored in the first storage unit 102.

As shown in FIGS. 3 to 5, each element of the second electronic device 200 to the fourth electronic device 400 is composed of a device substantially similar to each element of the first electronic device 100 described above, and thus a detailed description thereof will be given. Is omitted.

As shown in FIG. 3, the second electronic device 200 includes a second display unit 201 for displaying an image, a second storage unit 202, a second communication unit 203, a second signal output unit 204, and a second control. A unit 205, a second analysis unit 206, a second scaling unit 207, a second decoding unit 208, a second OSD processing unit 209, and a second operation unit 211 are included. The second storage unit 202 includes a storage area 202A and a storage area 202B.

As shown in FIG. 4, the third electronic device 300 includes a third display unit 301, a third storage unit 302, a third communication unit 303, a third signal output unit 304, a third control unit 305, and the like. It includes a third analysis unit 306, a third scaling unit 307, a third decoding unit 308, a third OSD processing unit 309, and a third operation unit 311. The third storage unit 302 includes a storage area 302A and a storage area 302B.

As shown in FIG. 5, the fourth electronic device 400 includes a fourth display unit 401, a fourth storage unit 402, a fourth communication unit 403, a fourth signal output unit 404, and a fourth control unit 405. It includes a fourth analysis unit 406, a fourth scaling unit 407, a fourth decoding unit 408, a fourth OSD processing unit 409, and a fourth operation unit 411. The fourth storage unit 402 includes a storage area 402A and a storage area 402B.

Next, the first wire rod 20 will be described in detail with reference to FIGS. 1 to 5. As shown in FIG. 1, the first wire rod 20 is, for example, a signal line such as an HDMI (registered trademark) cable or a serial cable. The first wire rod 20 connects a plurality of electronic devices in a daisy chain. For example, the first wire rod 20 connects the first electronic device 100 to the fourth electronic device 400 in a daisy chain. The daisy chain connection of a plurality of electronic devices by the first wire rod 20 includes not only connecting the plurality of electronic devices in series but also connecting them in an annular shape.

As shown in FIGS. 1 to 5, the first wire rod 20 includes a first video signal line 21, a second video signal line 22, a third video signal line 23, and a fourth video signal line 24. The first video signal line 21 is connected to the communication unit 12 of the source device 10 and the first communication unit 103 of the first electronic device 100, and sends a video signal transmitted from the source device 10 to the first electronic device 100. .. The second video signal line 22 is connected to the first communication unit 103 of the first electronic device 100 and the second communication unit 203 of the second electronic device 200, and receives a video signal transmitted from the first electronic device 100. 2 Send to electronic device 200. The third video signal line 23 is connected to the second communication unit 203 of the second electronic device 200 and the third communication unit 303 of the third electronic device 300, and receives the video signal transmitted from the second electronic device 200. 3 Send to the electronic device 300. The fourth video signal line 24 is connected to the third communication unit 303 of the third electronic device 300 and the fourth communication unit 403 of the fourth electronic device 400, and receives a video signal transmitted from the third electronic device 300. 4 Send to electronic device 400.

The second wire 30 is, for example, a signal line such as an HDMI (registered trademark) cable or a serial cable. The second wire 30 is connected to the fourth communication unit 403 of the fourth electronic device 400 and the first communication unit 103 of the first electronic device 100, and the video signal output from the fourth electronic device 400 is transmitted to the first electron. Send to device 100.

The third wire 40 is a signal line such as a USB cable, a wired LAN, or a serial cable. The third wire rod 40 sends, for example, a control signal and log information. The third signal line 40 includes a first signal line 41, a second signal line 42, a third signal line 43, and a fourth signal line 44. The first signal line 41 is connected to the first communication unit 103 of the first electronic device 100 and the second communication unit 203 of the second electronic device 200. The second signal line 42 is connected to the second communication unit 203 of the second electronic device 200 and the third communication unit 303 of the third electronic device 300. The third signal line 43 is connected to the third communication unit 303 of the third electronic device 300 and the fourth communication unit 403 of the fourth electronic device 400. The fourth signal line 44 is connected to the fourth communication unit 403 of the fourth electronic device 400 and the first communication unit 103 of the first electronic device 100.

Subsequently, the first control unit 105 of the first electronic device 100 will be described in detail with reference to FIGS. 1 to 5. As shown in FIG. 2B, the first control unit 105 includes a log acquisition unit 151, a log determination unit 152, an equipment control unit 153, and a storage capacity acquisition unit 154. The first control unit 105 functions as a log acquisition unit 151, a log determination unit 152, a device control unit 153, and a storage capacity acquisition unit 154 by executing a computer program stored in the first storage unit 102.

The log acquisition unit 151 acquires the log information of the electronic device stored in the electronic device from each of the plurality of electronic devices.

The log determination unit 152 determines whether or not the first log information matches the second log information. The first log information indicates log information of a reference electronic device which is one of a plurality of electronic devices. The reference electronic device is an electronic device from which the first log information is acquired. The second log information indicates log information of a different electronic device which is an electronic device different from the reference electronic device. An electronic device different from the reference electronic device is an electronic device from which the second log information is acquired.

The device control unit 153 controls a plurality of electronic devices. Specifically, when the log determination unit 152 determines that the first log information matches the second log information, the device control unit 153 sets the storage electronic device so that the storage electronic device stores the first log information. Control. The storage electronic device is one of a plurality of electronic devices. The storage electronic device is an electronic device that stores the first log information. Further, the device control unit 153 controls the electronic device different from the storage electronic device so as to delete the matching log information stored in the electronic device different from the reference electronic device.

When the first log information and the second log information match, the first log information is stored in the storage electronic device, the first log information is deleted from the electronic device from which the first log information was acquired, and the second log information is stored. Delete the second log information from the acquired electronic device. Therefore, the first log information is stored only in the storage electronic device. That is, the same log information as the first log information saved by the storage electronic device is not saved in the other electronic device. As a result, wasteful consumption of the storage capacity of electronic devices other than the storage electronic device can be suppressed.

The storage capacity acquisition unit 154 acquires information indicating the remaining storage capacity of the electronic device from each of the plurality of electronic devices. Specifically, the first control unit 105 has the remaining storage capacity of the storage area 102B of the first storage unit 102, the remaining storage capacity of the storage area 202B of the second storage unit 202, and the storage area 302B of the third storage unit 302. The remaining storage capacity and the remaining storage capacity of the storage area 402B of the fourth storage unit 402 are acquired.

Further, the device control unit 153 determines the storage electronic device from the plurality of electronic devices based on the information of the remaining storage capacity acquired from each of the plurality of electronic devices. Specifically, the first control unit 105 determines the storage electronic device based on the remaining storage capacity of the storage area 102B to the remaining storage capacity of the storage area 402B. More specifically, the first control unit 105 compares the remaining storage capacity of the storage area 102B to the remaining storage capacity of the storage area 402B, and stores the electronic device having the storage area having the largest storage capacity. To decide. For example, when the storage area with the most remaining storage capacity is the storage area 102B, the first control unit 105 determines the first electronic device 100 as the storage electronic device. Therefore, among a plurality of electronic devices, an electronic device having a sufficient storage capacity can be determined as a storage electronic device. As a result, it is possible to prevent the storage capacity from becoming small and the log information from being unable to be stored in the storage electronic device.

Next, the process executed by the display control system 1 will be described in detail with reference to FIGS. 1 to 7. The process executed by the display control system 1 is executed by any one of the first electronic device 100 to the fourth electronic device 400. In the present embodiment, a case where the first control unit 105 of the first electronic device 100 executes the process executed by the display control system 1 will be described as an example. In the first embodiment, the first electronic device 100 corresponds to an example of an "electronic device control device".

FIG. 6A is a diagram showing an example of the storage area 102A of the first storage unit 102 in which the log information of the first electronic device 100 is stored. FIG. 6B is a diagram showing an example of the storage area 202A of the second storage unit 202 in which the log information of the second electronic device 200 is stored. FIG. 6C is a diagram showing an example of the storage area 302A of the third storage unit 302 in which the log information of the third electronic device 300 is stored. FIG. 6D is a diagram showing an example of the storage area 402A of the fourth storage unit 402 in which the log information of the fourth electronic device 400 is stored.

As shown in FIGS. 6A to 6D, each of the storage areas 102A to 402A stores the log number LN, the state change information ST, the log storage time DT, the input source IP, and the input signal information IF. The log number LN corresponds to the "ID" shown in FIGS. 6A to 6D. The log number LN indicates a log information number. The state change information ST corresponds to "State" shown in FIGS. 6A to 6D. The state change information ST indicates the information input from the operation unit. The log storage time DT corresponds to "Date" shown in FIGS. 6A to 6D. The log storage time DT indicates the time when the log information is saved. The input source IP corresponds to "Input" shown in FIGS. 6A to 6D. The input source IP indicates a route through which the video signal is input. The input signal information IF corresponds to the "Information" shown in FIGS. 6A to 6D. The input signal information IF includes information indicating the resolution.

FIG. 7A is a diagram showing an example of a storage area 102B of the first storage unit 102 in which log information is stored. FIG. 7B is a diagram showing an example of the storage area 202B of the second storage unit 202. FIG. 7C is a diagram showing an example of the storage area 302B of the third storage unit 302 in which the log information is stored. FIG. 7D is a diagram showing an example of the storage area 402B of the fourth storage unit 402. As shown in FIGS. 7A to 7D, each of the storage area 102B to the storage area 402B has a log number LN, an input source IP, an input signal information IF, a log storage time DT, a state change information ST, and a determination result RS. save. The determination result RS indicates the determination result of the log determination unit 152.

In the display control system 1 of the present embodiment, as shown in FIG. 6A, the time of each of the first electronic device 100 to the fourth electronic device 400 is adjusted each time the power is turned on. Specifically, for example, the first control unit 105 controls the second electronic device 200 so that the time measured by the second electronic device 200 is the same as the time measured by the first electronic device 100. Further, the first control unit 105 controls the third electronic device 300 so that the time measured by the third electronic device 300 is the same time as the time measured by the first electronic device 100. Further, the first control unit 105 controls the fourth electronic device 400 so that the time measured by the fourth electronic device 400 is the same time as the time measured by the first electronic device 100.

Then, as shown in FIGS. 1 to 5, the communication unit 12 of the source device 10 transmits a video signal to the first electronic device 100. Next, the first communication unit 103 of the first electronic device 100 transmits a video signal to the second electronic device 200. Further, the first electronic device 100 that has received the video signal executes a process of displaying the video on the first display unit 101 based on the video signal. The process of displaying an image on the first display unit 101 is a process executed by the first decoding unit 108, the first analysis unit 106, the first scaling unit 107, and the first signal output unit 104. Specifically, the first decoding unit 108 of the first electronic device 100 decodes the signal input via the first communication unit 103. The first analysis unit 106 analyzes the signal information and the resolution information from the video signal decoded by the first decoding unit 108. The first scaling unit 107 enlarges or reduces the video signal decoded by the first decoding unit 108. Then, the first signal output unit 104 outputs the video signal to the first display unit 101.

Next, the second communication unit 203 of the second electronic device 200, which has received the video signal from the first communication unit 103 of the first electronic device 100, transmits the video signal to the third electronic device 300. Further, the second electronic device 200 that has received the video signal executes a process of displaying an image on the second display unit 201 based on the video signal.

Next, the third communication unit 303 of the third electronic device 300, which has received the video signal from the second communication unit 203 of the second electronic device 200, transmits the video signal to the fourth electronic device 400. Further, the third electronic device 300 that has received the video signal executes a process of displaying an image on the third display unit 301 based on the video signal.

The fourth electronic device 400 that has received the video signal executes a process of displaying an image on the fourth display unit 401 based on the video signal.

The same video signal is transmitted to the first electronic device 100 to the fourth electronic device 400. Therefore, if there is no abnormality in the video signal such as the video signal transmitted from the source device 10 is lost, noise is added to the video signal, or the image indicated by the video signal is discolored, the first electronic devices 100 to 4 The electronic device 400 stores the same log information.

Then, the log acquisition unit 151 acquires log information from each of the first storage unit 102 to the fourth storage unit 402 via the third wire rod 40. The log acquisition unit 151 acquires log information from each of the first storage unit 102 to the fourth storage unit 402, for example, based on the acquisition schedule of the log information stored in the first storage unit 102. As for the log information acquisition schedule, for example, log information is acquired from each of the first storage unit 102 to the fourth storage unit 402 at predetermined intervals after the power of the first electronic device 100 to the fourth electronic device 400 is turned on. Indicates to acquire. The predetermined period is, for example, 5 minutes. The log information shown in FIGS. 6A to 6D is the log information stored between "8:01: 00" and "8:06: 00". For example, when the log acquisition unit 151 acquires the log information every 5 minutes, the log information stored in each of the first storage unit 102 to the fourth storage unit 402 from 5 minutes before the current time to the current time is stored. get.

As shown in FIG. 6A, the log information LG 11 and the log information LG 12 are stored in the storage area 102A. The log information LG 11 corresponds to the log number LN1 of the storage area 102A. The log information LG 11 indicates a state in which the power of the first electronic device 100 is turned on and the first display unit 101 is not displaying an image. Specifically, the log information LG 11 includes information indicating that the input source IP is "HDMI1". The log information LG 11 includes information indicating that the input signal information IF is “no signal”. The log information LG 11 includes information indicating that the log storage time DT is "2019/6/6 8:01: 00". The log information LG 11 includes information indicating that the state change information ST is "power ON".

The log information LG12 corresponds to the log number LN2 of the storage area 102A. The log information LG12 indicates a state in which the first display unit 101 of the first electronic device 100 is displaying an image at a resolution of “3840 × 2160”. Specifically, the log information LG12 includes information indicating that the input source IP is "HDMI1". The log information LG12 includes information indicating that the input signal information IF is “3840 × 2160”. The log information LG12 includes information indicating that the log storage time DT is “2019/6/6 8:01:14”. The log information LG12 includes information indicating that the state change information ST is an “input signal change”.

Further, as shown in FIG. 6B, the log information LG21 and the log information LG22 are stored in the storage area 202A. The log information LG21 corresponds to the log number LN1 of the storage area 202A. The log information LG 21 indicates a state in which the power of the second electronic device 200 is turned on and the second display unit 201 is not displaying an image. Specifically, the log information LG21 includes information indicating that the input source IP is "HDMI1". The log information LG 21 includes information indicating that the input signal information IF is “no signal”. The log information LG21 includes information indicating that the log storage time DT is "2019/6/6 8:01: 00". The log information LG21 includes information indicating that the state change information ST is “power ON”.

The log information LG22 corresponds to the log number LN2 of the storage area 202A. The log information LG 22 indicates a state in which the second display unit 201 of the second electronic device 200 is displaying an image at a resolution of “3840 × 2160”. Specifically, the log information LG22 includes information indicating that the input source IP is "HDMI1". The log information LG 22 includes information indicating that the input signal information IF is “3840 × 2160”. The log information LG22 includes information indicating that the log storage time DT is “2019/6/6 8:01:13”. The log information LG 22 includes information indicating that the state change information ST is an “input signal change”.

Further, as shown in FIG. 6C, the log information LG31, the log information LG32, and the log information LG33 are stored in the storage area 302A. The log information LG31 corresponds to the log number LN1 of the storage area 302A. The log information LG 31 indicates a state in which the power of the third electronic device 300 is turned on and the third display unit 301 is not displaying an image. Specifically, the log information LG 31 includes information indicating that the input source IP is "HDMI1". The log information LG 31 includes information indicating that the input signal information IF is “no signal”. The log information LG31 includes information indicating that the log storage time DT is "2019/6/6 8:01: 00". The log information LG 31 includes information indicating that the state change information ST is "power ON".

The log information LG 32 corresponds to the log number LN2 of the storage area 302A. The log information LG 32 indicates a state in which the third display unit 301 of the third electronic device 300 is displaying an image at a resolution of “3840 × 2160”. Specifically, the log information LG 32 includes information indicating that the input source IP is "HDMI1". The log information LG 32 includes information indicating that the input signal information IF is “3840 × 2160”. The log information LG 32 includes information indicating that the log storage time DT is “2019/6/6 8:01:14”. The log information LG 32 includes information indicating that the state change information ST is an “input signal change”.

The log information LG33 corresponds to the log number LN3 of the storage area 302A. The log information LG 33 indicates a state in which the third display unit 301 of the third electronic device 300 is not displaying an image. Specifically, the log information LG 33 includes information indicating that the input source IP is "HDMI1". The log information LG 33 includes information indicating that the input signal information IF is “no signal”. The log information LG33 includes information indicating that the log storage time DT is "2019/6/6 8:01:16". The log information LG 33 includes information indicating that the state change information ST is an “input signal change”.

Further, as shown in FIG. 6D, the log information LG41 and the log information LG42 are stored in the storage area 402A. The log information LG41 corresponds to the log number LN1 of the storage area 402A. The log information LG 41 indicates a state in which the power of the fourth electronic device 400 is turned on and the fourth display unit 401 is not displaying an image. Specifically, the log information LG41 includes information indicating that the input source IP is "HDMI1". The log information LG 41 includes information indicating that the input signal information IF is “no signal”. The log information LG41 includes information indicating that the log storage time DT is "2019/6/6 8:01: 00". The log information LG41 includes information indicating that the state change information ST is "power ON".

The log information LG 42 corresponds to the log number LN2 of the storage area 402A. The log information LG 42 indicates a state in which the fourth display unit 401 of the fourth electronic device 400 is displaying an image at a resolution of “3840 × 2160”. Specifically, the log information LG42 includes information indicating that the input source IP is "HDMI1". The log information LG 42 includes information indicating that the input signal information IF is “3840 × 2160”. The log information LG42 includes information indicating that the log storage time DT is “2019/6/6 8:01:15”. The log information LG 42 includes information indicating that the state change information ST is an “input signal change”.

Further, the first control unit 105 determines the identification number of each of the first electronic device 100 to the fourth electronic device 400. For example, the first control unit 105 determines the identification number of the first electronic device 100 to be "1". The first control unit 105 determines the identification number of the second electronic device 200 to be "No. 2". The first control unit 105 determines the identification number of the third electronic device 300 to be "3". The first control unit 105 determines the identification number of the fourth electronic device 400 to be "4". The first control unit 105 determines the reference electronic device based on the identification number. Specifically, the first control unit 105 determines the electronic device having the smaller identification number among the identification numbers of the first electronic device 100 to the identification numbers of the fourth electronic device 400 as the reference electronic device. In the first embodiment, the first control unit 105 determines the first electronic device 100 as the reference electronic device. In the first embodiment, the second electronic device 200 to the fourth electronic device 400 are "electronic devices different from the reference electronic device". That is, in the first embodiment, the second electronic device 200 to the fourth electronic device 400 are different electronic devices.

Then, the log determination unit 152 determines whether or not the first log information of the reference electronic device matches the second log information of the electronic device different from the reference electronic device. Specifically, the log determination unit 152 determines whether or not the information matches the first log information with each of all the acquired second log information. For example, the log determination unit 152 determines whether or not the log information LG 11 of the first electronic device 100 matches the log information LG 21 of the second electronic device 200. Next, the log determination unit 152 determines whether or not the log information LG 11 of the first electronic device 100 matches the log information LG 31 of the third electronic device 300. Further, the log determination unit 152 determines whether or not the log information LG 11 of the first electronic device 100 matches the log information LG 41 of the fourth electronic device 400.

Further, the first control unit 105 determines the storage electronic device from each of the first electronic device 100 to the fourth electronic device 400. Specifically, the storage capacity acquisition unit 154 includes the remaining storage capacity of the storage area 102B of the first storage unit 102, the remaining storage capacity of the storage area 202B of the second storage unit 202, and the storage area 302B of the third storage unit 302. The remaining storage capacity and the remaining storage capacity of the storage area 402B of the fourth storage unit 402 are acquired. Then, the device control unit 153 determines the storage electronic device based on the remaining storage capacity of the storage area 102B to the remaining storage capacity of the storage area 402B. Specifically, the device control unit 153 compares the remaining storage capacity of the storage area 102B to the remaining storage capacity of the storage area 402B, and determines the electronic device having the storage area having the most storage capacity as the storage electronic device. do. For example, when the storage area with the most remaining storage capacity is the storage area 102B, the device control unit 153 determines the first electronic device 100 as the storage electronic device.

When the log determination unit 152 determines that the first log information matches the second log information, the storage electronic device controls the storage electronic device so as to store the log information of the reference electronic device. For example, the device control unit 153 controls the first electronic device 100 so that the first electronic device 100 stores the first log information. Specifically, as shown in FIG. 7A, when the log determination unit 152 determines that the first log information matches the second log information, the device control unit 153 uses the first storage unit 102 of the first electronic device 100. The first storage unit 102 is controlled so that the first log information and the determination result of the log determination unit 152 are stored in the storage area 102B.

As shown in FIG. 7A, for example, the log information LG111 of the reference electronic device is stored in the storage area 102B. The log information LG111 of the reference electronic device corresponds to, for example, the log information LG11 of the first electronic device 100. Further, in the line of the log number LN1 corresponding to the log information LG111 stored in the storage area 102B, the log information LG11 of the first electronic device 100 is the log information of the second electronic device 200, and the log information of the second electronic device 200 LG21 to the fourth electronic device 400. The determination result RS of the log determination unit 152 indicating that it matches the LG 41 is included.

Further, for example, the device control unit 153 sets the second electronic device 200 to the fourth electronic device 400 so that the second electronic device 200 to the fourth electronic device 400 delete the second log information that matches the first log information. To control. Specifically, the device control unit 153 controls the second storage unit 202 so as to delete the log information LG 21 from the storage area 202A shown in FIG. 6B. The device control unit 153 controls the third storage unit 302 so as to delete the log information LG 31 from the storage area 302A shown in FIG. 6C. The device control unit 153 controls the fourth storage unit 402 so as to delete the log information LG 41 from the storage area 402A shown in FIG. 6D.

Therefore, as shown in FIG. 7A, the log information LG111 is stored only in the storage area 102B of the first electronic device 100. Further, as shown in FIG. 7B, the log information that overlaps with the log information LG111 is not stored in the storage area 202B of the second electronic device 200. As shown in FIG. 7C, the log information that overlaps with the log information LG111 is not stored in the storage area 302B of the third electronic device 300. As shown in FIG. 7D, the log information that overlaps with the log information LG111 is not stored in the storage area 402B of the fourth electronic device 400. As a result, it is possible to suppress the reduction of the remaining storage capacity due to the duplicated log information.

Further, when the log determination unit 152 determines that the first log information does not match the second log information, the device control unit 153 controls the storage electronic device so that the storage electronic device stores the first log information. do. Then, the device control unit 153 controls the different electronic devices so that the electronic devices different from the storage electronic devices store the second log information of the mismatch stored in the different electronic devices.

Therefore, the second log information of the mismatch is stored in the electronic device from which the second log information of the mismatch has been acquired. That is, the second log information of the mismatch is stored in the electronic device in which some abnormality has occurred. As a result, it is possible to separate the storage destination of the first log information and the storage destination of the second log information that does not match, and suppress the reduction of the storage capacity of the electronic device.

For example, as shown in FIG. 6A, the storage area 102A includes log information LG11 and log information LG12. On the other hand, as shown in FIG. 6C, the storage area 302A includes the log information LG31, the log information LG32, and the log information LG33. The log information LG12 of the first electronic device 100 indicates that the first display unit 101 maintains a state in which an image is displayed at a resolution of “3840 × 2160”. The log information LG32 and the log information LG33 of the third electronic device 300 are in a state where the third display unit 301 does not display the image after the third display unit 301 displays the image at the resolution of "3840 x 2160". Indicates that it has become. The log determination unit 152 determines that the log information LG 12 does not match the log information LG 32 and the log information LG 33 based on the log information LG 12, the log information LG 32, and the log information LG 33.

When the log determination unit 152 determines that the log information does not match, for example, as shown in FIG. 7A, the log information LG 112 of the reference electronic device and the determination result RS of the log determination unit 152 are stored in the storage area 102B. The device control unit 153 controls the first storage unit 102. The log information LG 112 of the reference electronic device corresponds to, for example, the log information LG 12 of the first electronic device 100. Further, the line of the log number 2 corresponding to the log information LG 112 stored in the storage area 102B is a log indicating that the first log information of the first electronic device 100 does not match the second log information of the third electronic device 300. The determination result RS of the determination unit 152 is included.

Further, the device control unit 153 controls the third storage unit 302 so that the third storage unit 302 of the third electronic device 300 stores the second log information and the related information RI that do not match in the storage area 302B. The related information RI indicates the storage destination of the second log information of the mismatch and the related information. Specifically, as shown in FIG. 7C, the log information LG333 is stored in the storage area 302B. The log information LG333 corresponds to the log information LG33 of the third electronic device 300. Further, the line of the log number 1 corresponding to the log information LG333 stored in the storage area 302B includes the related information RI indicating that the information related to the log information LG333 is the log number 2 of the storage area 102B.

That is, the mismatched second log information and the related information RI are stored in the third electronic device 300 from which the mismatched second log information has been acquired. Therefore, the user can recognize that the log information LG 112 stored in the storage area 102B of the first electronic device 100 and the log information LG 333 stored in the storage area 302B of the third electronic device 300 are related to each other. As a result, the log information can be distributed and stored, and the reduction of the remaining storage capacity of the electronic device can be suppressed. Further, the related log information can be searched for based on the determination result RS of the log determination unit 152 stored in the first electronic device 100 and the related information RI stored in the third electronic device 300. As a result, even if the log information is distributed and stored, it is possible to easily search for the electronic device from which the second log information that does not match has been acquired.

Further, since the first log information of the first electronic device 100 and the second log information of the second electronic device 200 match, the device control unit 153 stores the first log information in the storage area 102B by the first storage unit 102. The first storage unit 102 is controlled so as to store the data. Further, the device control unit 153 controls the second storage unit 202 so that the second storage unit 202 of the second electronic device 200 deletes the second log information from the storage area 202A.

Further, since the first log information of the first electronic device 100 and the second log information of the fourth electronic device 400 match, the device control unit 153 stores the first log information in the storage area 102B by the first storage unit 102. The first storage unit 102 is controlled so as to store the data. Further, the device control unit 153 controls the fourth storage unit 402 so that the fourth storage unit 402 of the fourth electronic device 400 deletes the second log information from the storage area 402A.

Next, the log information screen RG displayed by the storage electronic device will be described with reference to FIGS. 1 to 9. FIG. 8 is a diagram showing a log information screen RG. FIG. 9 is a diagram in which an image showing the second log information of the mismatch is displayed on the log information screen RG shown in FIG. The electronic device that has received the instruction to display the log information screen RG displays the log information screen RG on the display unit as shown in FIG. In the present embodiment, the log information screen RG will be described by taking as an example the case where the first electronic device 100 receives an instruction to display the log information screen RG. The log information screen RG can be displayed on the first display unit 101 by the OSD.

As shown in FIG. 8, the first control unit 105 includes log information stored in the storage area 102B, log information stored in the storage area 202B, log information stored in the storage area 302B, and storage area 402B. The log information screen RG is generated based on the log information saved in. The log information screen RG includes a first display area RG1 and a second display area RG2. The first display area RG1 is an area indicating another electronic device daisy-chained to the first electronic device 100. Specifically, in the first display area RG1, the second electronic device 200, the third electronic device 300, and the fourth electronic device 400 are displayed.

The second display area RG2 is an area indicating log information stored in the storage area of the electronic device. For example, the second display area RG2 is an area showing log information stored in the storage area 102B of the first electronic device 100. The log information stored in the storage area 102B includes the log information LG111 and the log information LG112. The storage area 102B includes a log number LN, a state change information ST, a log storage time DT, an input source IP, an input signal information IF, and a determination result RS. An icon IC is displayed in the vicinity of the determination result RS of the log information LG112.

The icon IC is displayed when the determination result RS does not match. The icon IC is a button for displaying the pop-up screen PG shown in FIG. For example, by operating the icon IC shown in FIG. 8, the pop-up screen PG is displayed as shown in FIG. The log information of the electronic device determined to be inconsistent is displayed on the pop-up screen PG. Specifically, the pop-up screen PG is the log information LG333 stored in the storage area 302B of the third electronic device 300 related to the log information LG112 stored in the storage area 102B of the first electronic device 100 (see FIG. 7C). ) Is displayed. The log information LG333 of the storage area 302B displayed on the pop-up screen PG displays the identification number of the third electronic device 300, the state change information, the input source, and the input signal information.

Next, the process executed by the first control unit 105 will be described with reference to FIGS. 1 to 10. FIG. 10 is a flowchart showing a process executed by the first control unit 105. The process executed by the first control unit 105 includes steps S101 to S106.

As shown in FIG. 10, in step S101, the first control unit 105 determines whether or not the time is set based on the acquisition schedule stored in the first storage unit 102. The set time indicates the acquisition time of log information. If it is not the set time (No in step S101), the process returns to step S101. Specifically, the first control unit 105 determines whether or not the acquisition time of the log information and the current time match. If it is the set time (Yes in step S101), the process proceeds to step S102.

If Yes in step S101, in step S102, the first control unit 105 executes the log information storage process. The storage process will be described later with reference to FIG. The process proceeds to step S103.

In step S103, the first control unit 105 determines whether or not the user has received an instruction to generate the log information screen RG via the first operation unit 111. If the instruction to generate the log information screen RG is not accepted (No in step S103), the process ends. When the instruction to generate the log information screen RG is received (Yes in step S103), the process proceeds to step S104.

In the case of Yes in step S103, in step S104, the first control unit 105 acquires log information from each of the storage area 102B to the storage area 402B. The process proceeds to step S105.

In step S105, the first control unit 105 generates a table of the log information screen RG based on the acquired log information. The process proceeds to step S106.

In step S106, the first control unit 105 controls the first display unit 101 so that the first display unit 101 displays the log information screen RG. The process ends.

Next, the storage process executed by the first control unit 105 will be described with reference to FIGS. 10 and 11. FIG. 11 is a flowchart showing a storage process executed by the first control unit 105. The storage process executed by the first control unit 105 includes steps S201 to S212.

In step S201, the log acquisition unit 151 includes log information stored in the storage area 102A, log information stored in the storage area 202A, log information stored in the storage area 302A, and a log stored in the storage area 402A. Get information. The process proceeds to step S202.

In step S202, the first control unit 105 is based on the identification number of the first electronic device 100, the identification number of the second electronic device 200, the identification number of the third electronic device 300, and the identification number of the fourth electronic device 400. To determine the reference electronic device. The process proceeds to step S203.

In step S203, the log determination unit 152 determines whether or not the first log information of the reference electronic device matches the second log information of the electronic device different from the reference electronic device. If the first log information does not match the second log information (No in step S203), the process proceeds to step S208. If the first log information matches the second log information (Yes in step S203), the process proceeds to step S204.

In the case of Yes in step S203, in step S204, the storage capacity acquisition unit 154 acquires the remaining storage capacity from each of the storage area 102B to the storage area 402B. The process proceeds to step S205.

In step S205, the device control unit 153 determines the storage electronic device from the first electronic device 100 to the fourth electronic device 400 based on the information of the remaining storage capacity acquired from each of the storage area 102B to the storage area 402B. do. The process proceeds to step S206.

In step S206, the device control unit 153 controls the storage electronic device so that the storage electronic device stores the first log information and the determination result RS of the log determination unit 152. The process proceeds to step S207.

In step S207, the device control unit 153 uses an electronic device different from the storage electronic device so that the electronic device different from the storage electronic device deletes the second log information matching the first log information from the electronic device different from the storage electronic device. Control the equipment. The process returns to step S103 shown in FIG.

If No in step S203, in step S208, the storage capacity acquisition unit 154 acquires the remaining storage capacity from each of the storage area 102B to the storage area 402B. The process proceeds to step S209.

In step S209, the device control unit 153 determines the storage electronic device from the first electronic device 100 to the fourth electronic device 400 based on the information of the remaining storage capacity acquired from each of the storage area 102B to the storage area 402B. do. The process proceeds to step S210.

In step S210, the device control unit 153 controls the storage electronic device so that the storage electronic device stores the first log information and the determination result RS of the log determination unit 152. The process proceeds to step S211.

In step S211, the device control unit 153 uses an electronic device different from the storage electronic device so that the electronic device different from the storage electronic device deletes the second log information matching the first log information from the electronic device different from the storage electronic device. Control the equipment. The process proceeds to step S212.

In step S212, the device control unit 153 uses the electronic device from which the second log information has been acquired so that the electronic device from which the second log information that does not match the first log information has been acquired saves the second log information that does not match. Control the equipment. The process returns to step S103 shown in FIG.

[Embodiment 2]
Next, Embodiment 2 of the present invention will be described with reference to FIGS. 1 and 12. The display control system 1 of the second embodiment is different from the display control system 1 of the first embodiment in that the first control unit 105 includes the correctness determination unit 155. Hereinafter, the second embodiment will be described with respect to matters different from the first embodiment, and the description of the portion overlapping with the first embodiment will be omitted. FIG. 12 is a block diagram showing a first control unit 105 according to the second embodiment.

As shown in FIG. 12, the first control unit 105 according to the second embodiment includes a log acquisition unit 151, a log determination unit 152, an equipment control unit 153, a storage capacity acquisition unit 154, and a correctness determination unit 155. By executing the computer program stored in the first storage unit 102, the first control unit 105 executes the log acquisition unit 151, the log determination unit 152, the device control unit 153, the storage capacity acquisition unit 154, and the correctness determination unit. As 155, it functions.

The correctness determination unit 155 determines whether or not the log information stored in the storage electronic device is correct. Specifically, the correctness determination unit 155 determines whether or not the log information stored in the storage electronic device is correct based on the time when the log information stored in the storage electronic device is generated. That is, the correctness determination unit 155 determines whether or not the log information stored in the storage electronic device is the log information to be stored in the storage electronic device. When the correctness determination unit 155 determines that the log information stored in the storage electronic device is incorrect, the storage electronic device controls the storage electronic device so that the storage electronic device deletes the log information determined to be incorrect by the correctness determination unit 155. ..

Generally, an abnormality may occur in an electronic device over time. For example, an abnormality may occur in the electronic device after the determination process of the log determination unit 152 is completed. Therefore, the correctness determination unit 155 determines whether or not the log information stored in the storage electronic device is correct. As a result, it is possible to prevent erroneous log information from remaining in the storage area.

Next, specific processing of the correctness determination unit 155 will be described with reference to FIGS. 1 and 12 to 14C. FIG. 13A is a diagram showing log information stored in the storage area 102A of the first electronic device 100. FIG. 13B is a diagram showing log information stored in the storage area 302A of the third electronic device 300. FIG. 14A is a diagram showing log information stored in the storage electronic device. FIG. 14B is a diagram showing a storage area of the storage electronic device after deleting erroneous log information. FIG. 14C is a diagram showing a storage area of the storage electronic device in which the corrected log information is stored.

The log determination unit 152 determines whether or not the first log information of the reference electronic device matches the second log information of the electronic device different from the reference electronic device. For example, as shown in FIGS. 13A and 13B, the log determination unit 152 determines whether or not the log information of the first electronic device 100 matches the log information of the third electronic device 300. Specifically, the log determination unit 152 determines whether or not the log information LG 11 of the first electronic device 100 matches the log information LG 31 of the third electronic device 300. Then, the log determination unit 152 determines whether or not the log information LG 12 of the first electronic device 100 matches the log information LG 32 of the third electronic device 300.

Since the log information LG 11 of the first electronic device 100 matches the log information LG 31 of the third electronic device 300, the log information LG 111 is stored in the storage area 102B of the first electronic device 100 as shown in FIG. 14A. Further, since the log information LG12 of the first electronic device 100 matches the log information LG32 of the third electronic device 300, as shown in FIG. 14A, the log information LG112 of the first electronic device 100 stores the log information LG112 of the first electronic device 100. It is stored in the area 102B.

Then, the correctness determination unit 155 determines whether or not the log information stored in the storage area 102B of the first electronic device 100, which is a storage electronic device, is correct. For example, the correctness determination unit 155 stores the time when the log information LG12 stored in the storage area 102B of the first electronic device 100 shown in FIG. 14A is generated and the time when the log information LG12 is generated in the storage area 302A of the third electronic device 300 shown in FIG. 13B. Based on the time when the generated log information LG33 is generated, it is determined whether or not the log information stored in the storage electronic device is correct. Specifically, the correctness determination unit 155 determines whether or not the time from the time when the log information LG12 stored in the storage area 102B is generated to the time when the log information LG33 stored in the storage area 302A is generated exceeds the threshold value. judge. The threshold is, for example, 5 seconds.

The threshold value may be changed according to the log information. When the input signal information IF of the log information is information indicating a resolution such as "3840 x 2160", the threshold value is, for example, "5 seconds". Further, when the input signal information IF of the log information is information indicating "no signal", the threshold value may be "10 seconds", for example.

For example, as shown in FIGS. 13A and 13B, the period from the time when the log information LG12 is generated to the time when the log information LG33 is generated is "4 seconds". Therefore, the correctness determination unit 155 determines that the log information LG12 stored in the storage area 102B is incorrect. Then, as shown in FIG. 14B, the device control unit 153 deletes the log information LG 112 stored in the storage area 102B based on the determination result of the correctness determination unit 155. As a result, the erroneous log information LG112 can be deleted from the storage area 102B.

Further, the log determination unit 152 determines whether the log information LG 12 stored in the storage area 102A of the first electronic device 100 and the log information LG 33 stored in the storage area 302A of the third electronic device 300 match. Then, as shown in FIG. 14C, the device control unit 153 sets the first electronic device 100 so that the first electronic device 100 saves the log information LG 112 and the determination result RS of the log determination unit 152 in the storage area 102B. Control. As a result, the correctly corrected log information LG 112 is stored in the storage area 102B of the first electronic device 100.

Next, the process executed by the first control unit 105 of the second embodiment will be described with reference to FIGS. 1 and 12 to 16. FIG. 15 is a flowchart showing a storage process executed by the first control unit 105 of the second embodiment. As shown in FIG. 15, the preservation process executed by the first control unit 105 of the second embodiment includes steps S301 to S313. Note that steps S301 to S307 and steps S309 to S313 correspond to steps S201 to S207 and steps S208 to S212 of the first embodiment described with reference to FIG. Therefore, the description of steps S301 to S307 and steps S309 to S313 will be omitted.

In step S308, the correctness determination unit 155 executes the correctness determination process. The correctness determination process will be described later with reference to FIG. The process returns to step S103 shown in FIG.

FIG. 16 is a flowchart showing a correctness determination process executed by the correctness determination unit 155 of the second embodiment. As shown in FIG. 16, the correctness determination process executed by the correctness determination unit 155 of the second embodiment includes steps S401 and S402.

In step S401, the correctness determination unit 155 saves the log information based on the time when the log information stored in the storage electronic device is generated and the time when the log information stored in the electronic device different from the storage electronic device is generated. Determine whether the log information stored in the electronic device is correct. If the log information stored in the storage electronic device is correct (No in step S401), the process returns to step S103 shown in FIG. If the log information stored in the storage electronic device is correct (Yes in step S401), the process proceeds to step S402.

In the case of Yes in step S401, in step S402, the device control unit 153 deletes the log information saved by the storage electronic device and the determination result RS. The process proceeds to step S303 shown in FIG.

[Embodiment 3]
Next, Embodiment 3 of the present invention will be described with reference to FIGS. 1 and 12. In the display control system 1 of the third embodiment, the storage process executed by the first control unit 105 is different from the display control system 1 of the first embodiment and the display control system 1 of the second embodiment. Hereinafter, the third embodiment will be described with respect to matters different from those of the first and second embodiments, and the description of the parts overlapping with the first and second embodiments will be omitted.

As shown in FIG. 12, the first control unit 105 according to the third embodiment includes a log acquisition unit 151, a log determination unit 152, an equipment control unit 153, a storage capacity acquisition unit 154, and a correctness determination unit 155. By executing the computer program stored in the first storage unit 102, the first control unit 105 executes the log acquisition unit 151, the log determination unit 152, the device control unit 153, the storage capacity acquisition unit 154, and the correctness determination unit. Functions as 155.

When the log determination unit 152 determines that the log information of the reference electronic device does not match the log information of the electronic device different from the reference electronic device, the device control unit 153 of the third embodiment causes the device control unit 153 to perform the reference electronic device. The storage electronic device is controlled so that the storage electronic device stores the log information of the mismatch stored in the electronic device different from the log information of. Further, the device control unit 153 controls the electronic device different from the storage electronic device so that the electronic device different from the storage electronic device deletes the log information. That is, the storage electronic device stores the log information of the reference electronic device and the log information that does not match. Then, the log information is not stored in an electronic device different from the storage electronic device. Therefore, the log information of the electronic device connected to the display control system 1 is stored in the storage electronic device. That is, if the log information is acquired from the storage electronic device, the log information of other electronic devices can also be acquired. Therefore, it is possible to suppress the acquisition of log information from each of the electronic devices different from the storage electronic device. As a result, it is possible to reduce the time and effort required to acquire log information from each of the electronic devices.

Next, the process of the first control unit 105 according to the third embodiment will be described with reference to FIGS. 1, 12, and 17. FIG. 17 is a flowchart showing the processing of the first control unit 105 according to the third embodiment. The process of the first control unit 105 according to the third embodiment includes steps S501 to S512. Steps S501 to S511 correspond to steps S301 to S311 of the second embodiment described with reference to FIG. Therefore, the description of steps S501 to S511 will be omitted.

In step S512, the device control unit 153 deletes the second log information that matches the first log information stored in each of the electronic devices so that each of the electronic devices other than the storage electronic device deletes each of the electronic devices. To control. The process returns to step S103 shown in FIG.

The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiment, and can be implemented in various embodiments without departing from the gist thereof. In addition, various inventions can be formed by appropriately combining the plurality of components disclosed in each of the above embodiments. For example, some components may be removed from all the components shown in the embodiments. Further, components over different embodiments may be combined as appropriate. In order to make the drawings easier to understand, each component is schematically shown, and the thickness, length, number, spacing, etc. of each component shown are actual for the convenience of drawing creation. Is different. Further, the speed, material, shape, dimensions, etc. of each component shown in the above embodiment are merely examples, and are not particularly limited, and various changes can be made within a range that does not substantially deviate from the configuration of the present invention. It is possible.

(1) In the first to third embodiments, the process executed by the display control system 1 is executed by the first control unit 105, but the process is not limited to this. The process executed by the display control system 1 can be executed by any one of the second control unit 205, the third control unit 305, and the fourth control unit 405. For example, the second control unit 205 may include a log acquisition unit 151, a log determination unit 152, a device control unit 153, a storage capacity acquisition unit 154, and a correctness determination unit 155. In this case, the process executed by the display control system 1 is executed by the second control unit 205.

(2) In the first embodiment, the first display unit 101 of the first electronic device 100 displays the log information screen RG, but the present invention is not limited to this. The log information screen RG may be displayed on the display unit of an external terminal connected to any of the first electronic device 100 to the fourth electronic device 400. When the external terminal displays the log information screen RG, the external terminal saves the log information saved in the storage area 102B, the log information saved in the storage area 202B, and the log information saved in the storage area 202B from each of the storage areas 102B to 402B. The log information saved in the storage area 302B and the log information saved in the storage area 402B are acquired. Then, the external terminal generates the log information screen RG shown in FIGS. 8A and 8B. Then, the log information screen RG is displayed on the display unit of the external terminal.

When the external terminal displays the log information screen RG, the electronic device connected to the external terminal saves the log information saved in the storage area 102B and the storage area 202B from each of the storage areas 102B to 402B. The saved log information, the log information saved in the storage area 302B, and the log information stored in the storage area 402B may be acquired. Then, the electronic device connected to the external terminal may transmit the log information to the external terminal.

(3) In the first embodiment, the source device 10 transmits the video signal, but the present invention is not limited to this. For example, any one of the first electronic device 100 to the fourth electronic device 400 may transmit a video signal. When any one of the first electronic device 100 to the fourth electronic device 400 transmits a video signal, the display control system 1 has the first electronic device 100 to the fourth electronic device 400. That is, the display control system 1 does not include the source device 10. For example, when transmitting the video signal of the first electronic device 100, the first electronic device 100 may transmit the video signal of the content acquired via a communication network such as the Internet, and is stored in the first electronic device 100. The video signal of the content may be transmitted. Further, a video signal of the content read from an external storage device such as a USB memory connected to the first electronic device 100 may be transmitted.

(4) In the first embodiment, the log acquisition unit 151 stores the log information stored in each of the first storage unit 102 to the fourth storage unit 402 every 5 minutes from 5 minutes before the current time to the current time. Obtained, but not limited to this. For example, when the log acquisition unit 151 acquires the log information 5 minutes before the current time, the log acquisition unit 151 may acquire the log information 5 minutes and 10 seconds before the current time. Therefore, even if the time measured by the first electronic device 100 to the time measured by the fourth electronic device 400 differ by about 10 seconds, the log acquisition unit 151 can acquire the log information for the same period. As a result, it is possible to suppress the omission of acquisition of the log information stored in the first storage unit 102 to the fourth storage unit 402.

(5) In the first embodiment, the first control unit 105 controls the second electronic device 200 to the fourth electronic device 400 so as to have the same time as the time measured by the first electronic device 100. Not exclusively. For example, the first control unit 105 measures the time measured by the first electronic device 100, the time measured by the second electronic device 200, the time measured by the third electronic device 300, and the time measured by the fourth electronic device 400. To get. Then, for example, the first control unit 105 determines whether or not the acquired times differ by 5 seconds or more. When the acquired times differ by 5 seconds or more, the first control unit 105 controls the second electronic device 200 to the fourth electronic device 400 so that the time is the same as the time measured by the first electronic device 100. If the acquired times do not differ by 5 seconds or more, the first control unit 105 does not change the time measured by the second electronic device 200 to the time measured by the fourth electronic device 400.

(6) In the first embodiment, the electronic device is a display device, but the present invention is not limited to this. Electronic devices are not limited to display devices as long as they store log information. The electronic device may be, for example, a PC (personal computer), a mobile terminal, or a smartphone.

The present invention can be used in the fields of electronic device control devices and display control systems.

1: Display control system 100: First electronic device 101: First display unit 102: First storage unit 102A: Storage area 102B: Storage area 105: First control unit 151: Log acquisition unit 152: Log determination unit 153: Equipment Control unit 154: Storage capacity acquisition unit 155: Correct / fail determination unit 200: Second electronic device 205: Second control unit 300: Third electronic device 305: Third control unit 400: Fourth electronic device 405: Fourth control unit

Claims (8)

A log acquisition unit that acquires log information of the electronic device stored in the electronic device from each of the plurality of electronic devices, and a log acquisition unit.
It is determined whether or not the log information of the reference electronic device, which is one of the plurality of electronic devices, matches the log information of the different electronic device, which is the electronic device different from the reference electronic device. Log judgment part and
It is equipped with a device control unit that controls the plurality of electronic devices.
When the log determination unit determines that the log information of the reference electronic device matches the log information of the difference electronic device, the device control unit is a storage that is one of the plurality of electronic devices. The storage electronic device is controlled so that the electronic device stores the log information of the reference electronic device, and the electronic device different from the storage electronic device is stored by the electronic device different from the reference electronic device. An electronic device control device that controls an electronic device different from the storage electronic device so as to delete matching log information. When the log determination unit determines that the log information of the reference electronic device does not match the log information of the difference electronic device, the device control unit determines that the storage electronic device causes the log information of the reference electronic device. The storage electronic device is controlled so as to store the storage electronic device, and the electronic device different from the storage electronic device stores the log information of the mismatch stored in the electronic device different from the storage electronic device. The electronic device control device according to claim 1, which controls the electronic device different from the storage electronic device. Further, a storage capacity acquisition unit for acquiring information indicating the remaining storage capacity of the electronic device from each of the plurality of electronic devices is provided.
The device control unit determines the storage electronic device from the plurality of electronic devices based on the information of the remaining storage capacity acquired from each of the plurality of electronic devices, according to claim 1 or 2. The electronic device control device described. The electronic device according to any one of claims 1 to 3, wherein the device control unit controls the storage electronic device so that the storage electronic device stores the determination result of the log determination unit. Control device. Further, a correctness determination unit for determining whether or not the log information stored in the storage electronic device is correct based on the time when the log information stored in the storage electronic device is generated is provided.
When the correctness determination unit determines that the log information stored in the storage electronic device is not correct, the device control unit uses the log information determined to be incorrect by the correctness determination unit to be used for the storage electronic device. The electronic device control device according to any one of claims 1 to 4, which controls the storage electronic device so as to be deleted. When the log determination unit determines that the log information of the reference electronic device does not match the log information of the difference electronic device, the device control unit sends the log information of the reference electronic device to the difference electronic device. The storage electronic device is controlled so that the stored electronic device stores the stored log information of the mismatch, and the electronic device different from the storage electronic device deletes the mismatch log information. The electronic device control device according to claim 1, which controls the electronic device different from the storage electronic device. The electronic device control device according to any one of claims 1 to 6, wherein the electronic device is a display device including a display unit for displaying the log information. With multiple electronic devices
It is provided with an electronic device control device that controls the plurality of electronic devices.
The electronic device control device is
A log acquisition unit that acquires log information of the electronic device stored in the electronic device from each of the plurality of electronic devices, and a log acquisition unit.
It is determined whether or not the log information of the reference electronic device, which is one of the plurality of electronic devices, matches the log information of the different electronic device, which is the electronic device different from the reference electronic device. Log judgment part and
Including a device control unit that controls the plurality of electronic devices,
When the log determination unit determines that the log information of the reference electronic device matches the log information of the difference electronic device, the device control unit is a storage that is one of the plurality of electronic devices. The storage electronic device is controlled so that the electronic device stores the log information of the reference electronic device, and the electronic device different from the storage electronic device is stored by the electronic device different from the storage electronic device. A display control system that controls the electronic device different from the storage electronic device so as to delete the matching log information.

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